KR102213658B1 - Piping state control system, piping map system and leakage detection system using the same - Google Patents

Abstract

The present invention is a volumetric aberration disposed in a pipe to generate electric power using a fluid moving inside the pipe, a first pressure sensor and a second pressure sensor installed in the front and rear of the volumetric aberration, and in one area of the pipe. A control valve disposed, a power supply for storing and supplying electric power produced by the positive displacement aberration, and the pipe transmitted from the first and second pressure sensors and the positive displacement using electric power from the power supply And a control unit that receives pressure change and flow rate information of and determines and controls the state of the pipe by using it, and the control unit wirelessly transmits the state information of the pipe to the management server using power supplied from the power supply unit. It provides a piping condition control system characterized in that the transmission.

Description

Piping state control system, piping map system and leakage detection system using the same

The embodiment relates to a pipe condition control system, a pipe map system using the same, and a leak detection system. More specifically, it relates to a pipe condition monitoring and control system that measures the pressure change, flow rate, and temperature conditions of the pipe and transmits pipe information using self-produced power without an external power source. It relates to a piping map system and a leak detection system.

In general, heating methods are classified into individual heating, central heating and district heating.

Individual heating is a method of individually installing small boilers in each household and using their own heating and hot water. Individual heating control is possible, and a separate space for boiler installation is required. Electricity charges and fuel purchase costs used for management and maintenance and boiler operation are directly imposed on the households used, and there are disadvantages in causing pollution and inferior thermal efficiency as there are no regulations and restrictions on exhaust gas.

The central heating method is a method of supplying intermittent heating and hot water from the central machine room by installing medium-sized boilers in a separate space in the apartment. It does not require installation and maintenance of boilers for each household, and is intermittent heating by time. Independent heating control for each household is not possible, and the heat efficiency is lower than that of the district heating method due to the operation of the boiler according to the 24-hour hot water supply, and the inconvenience of use is greater.

The district heating method is a closed-circuit system that supplies medium-temperature water produced in the collective energy supply facility and cogeneration plant for each area to each apartment complex, transfers heat through a heat exchanger installed in the apartment machine room, and returns. It does not provide direct heating water and hot water.

By receiving the heat supplied in this way, the apartment machine room produces heating and hot water and supplies it to each household. Compared to other heating systems, maintenance is easy, thermal efficiency is high, and it is possible to supply heating and hot water for 24 hours. As there is no need for installation of the boiler, it is possible to use the boiler installation space for other purposes, and because the heating cost is paid as much as it is used, economical benefits and in particular, there is no exhaust gas, thereby achieving a comfortable residential environment.

In general, district heating supplies medium-temperature water (high-temperature and high-pressure water) produced in collective energy supply facilities and cogeneration plants to heat demanding places such as apartments through a pipe-type heat transport pipe, and the medium-temperature water is installed in the user's machine room. Heat is transferred through the existing heat exchanger to achieve heat exchange, and then returned to the collective energy supply facility and the cogeneration power plant to form medium-temperature water through reheating to form a circulation system (closed circuit) that is supplied to heat consumers such as apartment machine rooms. , In apartment machine rooms, heating water and hot water (hot water) are supplied for each household by using the supplied medium-temperature water.

Most of the heat transport pipes and heat user pipes of such district heating exist in a state buried underground or in a specific space (machine room or manhole), and a plurality of sensors are installed in the pipe to measure the state of the fluid moving the pipe. In addition, valves are installed in the piping to control fluid moving through the piping.

In particular, a valve installed in a conventional heat transport pipe (a pipe buried underground) exists in a position where it is not easy to obtain power due to the special nature of the pipe, and thus a separate power supply needs to be supplied to control the valve.

In addition, there is a problem in that power must be supplied to a sensor for measuring the state of the moving fluid in the pipe.

An object of the embodiment is to transmit fluid information that is transferred using self-produced power without an external power source, and to control a moving fluid by using it.

In addition, it aims to implement the state of the pipe as a map using information transmitted from the pipe.

In addition, the purpose of detecting a leak in the pipe is to compare the state information of the fluid moving the pipe with the abnormal signal of a sensor (pressure, flow temperature, detection line, etc.) installed in the pipe.

The problem to be solved by the present invention is not limited to the problems mentioned above, and other problems that are not mentioned herein will be clearly understood by those skilled in the art from the following description.

An embodiment of the present invention, a displacement type aberration that is disposed in a pipe to generate electric power using a fluid that moves inside the pipe; A first pressure sensor and a second pressure sensor installed in front and rear of the positive displacement aberration; A control valve disposed in a region of the pipe; A power supply unit for storing and supplying power generated by the positive displacement aberration; And receiving the pressure change and flow rate information of the pipe transmitted from the first pressure sensor and the second pressure sensor and the volumetric aberration by using power from the power supply unit, and determining and controlling the state of the pipe using this. And a control unit, wherein the control unit wirelessly transmits status information of the pipe to a management server by using power supplied from the power supply unit.

Preferably, the pipe may be characterized in that a temperature sensor is provided.

Preferably, the control unit may be characterized in that controlling the flow rate and pressure moving the pipe by adjusting the rotational speed of the turbine of the displacement type aberration.

Preferably, the control unit may be characterized in that it controls the opening and closing of the control valve according to the state of the pipe.

Preferably, the control unit may be characterized in that when the rotational speed of the turbine exceeds a limit speed, the volumetric aberration is controlled to operate at a target rotational speed, and a warning signal is transmitted to the management server.

In addition, the present invention is a power generation unit for generating power by using a fluid that is disposed in the pipe and moves inside the pipe; A power supply unit for storing and supplying power generated by the power generation unit; A first pressure sensor and a second pressure sensor installed at the front and rear of the power generating unit and transmitting information wirelessly using power supplied through the power supply unit; A management server receiving information on the first pressure sensor and the second pressure sensor; It may be implemented as a piping map system using piping status information including a display unit that displays piping status information on a piping map based on a signal from the management server.

Preferably, pressure information of the front and rear of the power generation unit is displayed on the display unit, and the management server may display a warning display when piping condition information outside a preset pressure range is displayed.

Preferably, the management server may be characterized in that it determines whether or not the pipe is abnormal by comparing a preset pressure drop rate of the fluid moving the pipe with the pressure strengthening rate measured at both sides of the pipe.

In addition, the present invention is a leak detection unit for detecting a leak in a pipe having a double pipe structure; A power generation unit disposed in the pipe and generating electric power using a fluid moving inside the pipe; A front pressure sensor and a rear pressure sensor installed at the front and rear of the power generating unit and transmitting information wirelessly using power supplied through the power generating unit; It may be implemented as a leak detection system using pipe condition information including; a determination unit that receives the detection signal of the leak detection unit and the detection information of the front pressure sensor and the rear pressure sensor to determine whether the pipe is leaking.

Preferably, the leak detection unit may be characterized in that a detection line is used.

Preferably, the determination unit may be characterized in that it determines whether a pipe is abnormal by comparing a pressure drop rate of the front pressure sensor and a rear pressure sensor with a pressure intensification rate preset according to the length of the pipe.

Preferably, the determination unit may be characterized in that it transmits an inspection signal to the manager when one abnormal signal among information obtained by comparing the signal received from the detection line and the pressure drop rate of the pipe is detected.

Preferably, the determination unit may be characterized in that closing the control valve installed in the pipe when all of the information obtained by comparing the signal received from the detection line and the pressure drop rate of the pipe is determined to be an abnormal signal.

According to the embodiment, it is possible to diagnose a pipe condition and control a conveying fluid without an external power source, thereby reducing cost.

In addition, there is an effect of being able to check and manage the state of the pipe at a glance through the pipe map.

In addition, it is possible to increase the reliability of determining the leakage of the pipe by comparing the state information of the fluid moving the pipe with the information detected from the detection line installed in the pipe.

Various and beneficial advantages and effects of the present invention are not limited to the above-described contents, and may be more easily understood in the course of describing specific embodiments of the present invention.

1 is a structural diagram of a piping condition control system according to an embodiment of the present invention,
2 is a structural diagram of a piping map system using piping state information, which is a second embodiment of the present invention.
3 is a diagram showing an embodiment of a piping map in the embodiment of FIG. 2,
4 is a structural diagram of a leak detection system using pipe condition information according to a third embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

However, the technical idea of the present invention is not limited to some embodiments to be described, but may be implemented in various different forms, and within the scope of the technical idea of the present invention, one or more of the constituent elements may be selectively selected between the embodiments. It can be combined with and substituted for use.

In addition, terms (including technical and scientific terms) used in the embodiments of the present invention are generally understood by those of ordinary skill in the art, unless explicitly defined and described. It can be interpreted as a meaning, and terms generally used, such as terms defined in a dictionary, may be interpreted in consideration of the meaning in the context of the related technology.

In addition, terms used in the embodiments of the present invention are for describing the embodiments and are not intended to limit the present invention.

In the present specification, the singular form may include the plural form unless specifically stated in the phrase, and when described as “at least one (or more than one) of A and (and) B and C”, it is combined with A, B, and C. It may contain one or more of all possible combinations.

In addition, terms such as first, second, A, B, (a), and (b) may be used in describing the constituent elements of the embodiment of the present invention.

These terms are only for distinguishing the component from other components, and are not limited to the nature, order, or order of the component by the term.

And, when a component is described as being'connected','coupled' or'connected' to another component, the component is not only directly connected, coupled or connected to the other component, but also the component and It may also include the case of being'connected','coupled' or'connected' due to another component between the other components.

In addition, when it is described as being formed or disposed on the “top (top) or bottom (bottom)” of each component, the top (top) or bottom (bottom) is one as well as when the two components are in direct contact with each other. It also includes a case in which the above other component is formed or disposed between the two components. In addition, when expressed as "upper (upper) or lower (lower)", the meaning of not only an upward direction but also a downward direction based on one component may be included.

Hereinafter, exemplary embodiments will be described in detail with reference to the accompanying drawings, but identical or corresponding components are denoted by the same reference numerals regardless of reference numerals, and redundant descriptions thereof will be omitted.

1 to 4, in order to clearly understand the present invention conceptually, only the main characteristic parts are clearly shown, and as a result, various modifications of the illustration are expected, and the scope of the present invention is limited by the specific shape shown in the drawings. It doesn't have to be.

1 is a structural diagram of a piping condition control system according to an embodiment of the present invention.

Referring to Figure 1, the pipe 10 state control system according to an embodiment of the present invention is a positive displacement waterwheel 100, a first pressure sensor 110 and a second pressure sensor 120, a control valve 130, It may include a control unit 300 and a power supply unit 200.

The present invention can diagnose the condition of the pipe 10 and wirelessly transmit diagnostic information. At this time, the problem of conventional power supply has been solved by generating power by using the fluid moving the pipe 10, and through this, power capable of wirelessly transmitting sensing information of each sensor can be supplied.

The positive displacement aberration 100 may be disposed on the pipe 10 to generate electric power by using a fluid that moves inside the pipe 10.

The positive displacement aberration 100 is installed in a region of the pipe 10 through which the fluid moves, and the flow rate of the fluid flowing in through the inlet and the fluid flowing out through the outlet may be adjusted through a turbine. In this case, the positive displacement aberration 100 may move a fluid having a constant flow rate according to the rotation amount of the turbine. The control unit 300 may precisely control the flow rate of the fluid moving through the pipe 10 by controlling the rotational speed of the positive displacement waterwheel 100.

In addition, the positive displacement aberration 100 may generate electric power through the rotation of the turbine, and the generated electric power may be moved to the power supply unit 200 and stored.

The first pressure sensor 110 and the second pressure sensor 120 may be installed in the front and rear of the positive displacement aberration 100.

The first pressure sensor 110 and the second pressure sensor 120 are installed in the front and rear of the positive displacement aberration 100 installed in the pipe 10 to measure the pressure of the fluid passing through the positive displacement aberration 100. have. The type of the first pressure sensor 110 and the second pressure sensor 120 is not limited, and various types of pressure sensors for measuring the pressure of the fluid may be used.

The control valve 130 may be disposed in a region of the pipe 10 to open and close the pipe 10 by a signal from the controller 300. Although the positive displacement type aberration 100 can control the flow rate of the fluid moving through the pipe to a certain amount, the positive displacement type aberration 100 continuously moves the fluid. If there is an abnormality in the condition of the pipe or a problem in which the pressure is not controlled, it may be difficult to cope with only the flow rate control. In order to prevent such a problem, the control valve 130 may block or open a flow of fluid moving through the pipe 10 according to the state of the pipe.

The temperature sensor 140 may be disposed in a region of the pipe 10 to measure the temperature of a fluid moving through the pipe 10.

In one embodiment, in district heating, hot water of about 115 degrees Celsius is supplied to the user. At this time, the temperature sensor 140 may measure the temperature to check whether a heat source having a desired temperature is supplied to the user.

In addition, the information sensed by the temperature sensor 140 may be used to measure the amount of heat delivered by the fluid. Information sensed from the displacement aberration 100 and temperature information sensed by the temperature sensor 140 may be used for calorific calculation.

The power supply unit 200 may be connected to the positive displacement aberration 100 to store power generated by rotation of the turbine, and may transmit the stored power to each of the components.

In one embodiment, the power supply unit 200 supplies power to each of the first pressure sensor 110, the second pressure sensor 120, the positive displacement aberration 100, the temperature sensor 140, and the control valve 130. I can. Each component supplied with power can transmit or drive a signal wirelessly.

By controlling the capacity of the fluid moving through the pipe through the positive displacement aberration 100 and transmitting the generated power to each component, it is possible to easily solve the problem of the location of the conventional power supply source, and the cost of power consumption. Can be solved.

The control unit 300 may wirelessly transmit status information of the pipe 10 to the management server 400 by using the power supplied from the power supply unit 200.

The controller 300 may receive flow rate information from the positive displacement aberration 100, pressure information of a pipe from the first pressure sensor 110 and the second pressure sensor 120, and temperature information from the temperature sensor 140.

The controller 300 may adjust the number of revolutions of the turbine of the displacement waterwheel 100 based on a preset pressure drop rate input through the management server 400. Through this, it is possible to control the flow rate and pressure passing through the positive displacement aberration (100).

The control unit 300 may control opening and closing of the control valve 130 according to the state of the pipe 10.

In one embodiment, the controller 300 may prevent the occurrence of an accident by closing the control valve 130 when the pressure intensification rate is not controlled even though the number of turbines of the displacement waterwheel 100 is controlled.

In addition, the control unit 300 can control the operation of the displacement waterwheel 100 to be operated at the target rotational speed when the rotational speed of the turbine exceeds the limit speed, and in this case, it may transmit a warning signal to the management server 400. I can.

The management server 400 may warn the administrator of an abnormal signal in various ways, and various methods such as sight or hearing may be used.

Meanwhile, in the following, a pipe map system using status information of a pipe 10 according to a second embodiment of the present invention will be described with reference to the accompanying drawings. However, the description of the same as described in the pipe 10 condition control system according to an embodiment of the present invention will be omitted.

In the description of FIGS. 2 to 3, the same reference numerals as in FIG. 1 denote the same members, and detailed descriptions will be omitted.

FIG. 2 is a structural diagram of a piping map system using status information of a piping 10 according to a second embodiment of the present invention, and FIG. 3 is a diagram showing an embodiment of a piping map in the embodiment of FIG. 2.

Referring to FIGS. 2 and 3, a pipe map system using information on the state of the pipe 10 is arranged in the pipe 10 and a power generation unit 100a that generates electric power using fluid that moves inside the pipe 10, A power supply unit 200 that stores and supplies power produced by the power generation unit 100a, installed at the front and rear sides of the power generation unit 100a, and transmits information wirelessly using power supplied through the power supply unit 200 The first pressure sensor 110 and the second pressure sensor 120, the first pressure sensor 110 and the management server 400 receiving the information of the second pressure sensor 120, the signal of the management server 400 It may include a display unit 500 that displays state information of the pipe 10 on the basis of the pipe map.

The purpose of the piping map system using piping status information is to make it possible to visually check the status of the piping 10 which is complex and difficult to check with the naked eye.

The power generation unit 100a may generate power by using a fluid that moves inside the pipe 10. In one embodiment, the power generation unit 100a may use the positive displacement aberration 100 mentioned in the pipe condition control system.

The management server 400 may receive signal information from the first pressure sensor 110 and the second pressure sensor 120 and transmit it to the display unit 500.

The display unit 500 displays pressure information of the front and rear sides of the power generation unit 100a, and the management server 400 may display a warning indication through the display unit 500 when piping condition information outside a preset pressure range is displayed. have.

A plurality of pressure sensors are disposed in the pipe 10, which may be installed at the front and rear sides based on the power generation unit 100a.

In this case, the first pressure sensor 110 and the second pressure sensor 120 are installed at the front and rear from the power generation unit 100a, but two pressure sensors may be installed between the power generation unit 100a.

The rear pressure sensor 12 disposed at the rear of the first power generation unit 100a-1 and the front pressure sensor 21 disposed at the front of the second power generation unit 100a-1 are disposed on the same piping line, and are disposed between the two. The power generation unit 100a does not exist.

The fluid moving the pipe 10 causes a pressure drop due to the distance traveled by the pipe 10 and other factors.

The management server 400 determines whether the pipe is abnormal by comparing the preset pressure drop rate and the pressure intensification rate measured at both sides of the pipe 10, and a warning signal of the pipe when it is out of a predetermined range of the preset pressure intensification rate. May be transmitted to the display unit 500.

A warning may be given to the manager using various methods such as a method of changing the color of an abnormal pipe network on the piping map of the display unit 500 or a sound.

Meanwhile, in the following, a leak detection system using pipe condition information according to a third embodiment of the present invention will be described with reference to the accompanying drawings. However, descriptions of the same as described in the piping condition control system and the piping map system using piping status information according to an embodiment of the present invention will be omitted.

In the description of FIG. 4, the same reference numerals as in FIGS. 1 to 3 denote the same members, and detailed descriptions will be omitted.

4 is a structural diagram of a leak detection system using pipe condition information according to a third embodiment of the present invention.

Referring to FIG. 4, the leak detection system using piping status information includes a leak detection unit 600 that detects leaks in a piping 10 having a double-pipe structure, and is disposed in the piping 10 to cover the inside of the piping 10. Power generation unit 100a that generates power using a moving fluid, installed in the pipe 10, and transmits pressure information of the pipe 10 wirelessly using power supplied through the power generation unit 100a Whether the pipe is leaked by receiving the detection signal of the front pressure sensor 110b and the rear pressure sensor 110a, and the leak detection unit 600 and detection information of the front pressure sensor 110b and the rear pressure sensor 110a. It may include a determination unit 700 to determine.

The leak detection unit 600 may be installed in a region of a pipe to detect that a pipe is damaged or a problem occurs in a connection portion, and thus leakage occurs.

In one embodiment, when a double pipe is used as the pipe 10, the double pipe structure includes an inner pipe 12, an outer pipe 11, and an insulating material 13 disposed in the inner pipe and the outer pipe, and in one area of the insulating material The detection line 14 may be disposed as an embodiment of the leak detection unit 600. The detection line 14 may generate an electrical signal when the fluid flows out of the inner tube or the exterior is damaged and the fluid flows in, indicating that a leak has occurred in the piping.

The determination unit 700 calculates the pressure drop rate using the pressure values received from the front pressure sensor 110b and the rear pressure sensor 110a, and compares the pressure drop rate of the fluid preset according to the length of the pipe to determine the abnormality of the pipe. You can judge whether or not.

Due to the special nature of the pipe 10, it is difficult to check the damage of the pipe 10 with the naked eye, and in order to confirm this, an excavation operation must be preceded, which increases time and cost.

In order to solve this problem, a technology for determining leakage of the pipe 10 by using a detection line is widely used.

However, there are cases where the pipes are damaged during the construction process around them, and there are cases in which normal signals are not transmitted due to various factors such as the life of the detection line.

An object of the present invention is to increase the reliability of the leak determination in order to prevent it from being judged as a leak when it is not an actual pipe damage.

The determination unit 700 may transmit a check signal to the manager when one abnormal signal is detected among information obtained by comparing the signal received from the detection line and the pressure drop rate of the pipe 10.

In one embodiment, when the inner pipe that causes serious damage in the pipe 10 is damaged, an abnormal signal of the detection line is transmitted by the leaked fluid, and a pressure drop occurs in the area where the pipe 10 leaks.

However, when only the exterior is damaged, the fluid moving through the pipe 10 does not leak, but external fluid flows in and rust occurs, which may weaken the pipe, thereby causing damage to the inner pipe.

When one abnormal signal is detected, the determination unit 700 may transmit a check signal to an administrator to prevent the occurrence of secondary damage.

In addition, when the determination unit 700 determines that all of the information obtained by comparing the pressure drop rate of the pipe with the signal received from the detection line is determined as an abnormal signal, damage occurs by closing the control valve 130 installed in the pipe 10 Secondary damage can be prevented in advance by automatically responding quickly.

As described above, according to the embodiment of the present invention, it is possible to diagnose the state of the pipe and control the transport fluid without an external power source, thereby reducing cost.

In addition, there is an effect of being able to check and manage the state of the pipe at a glance through the pipe map.

In addition, by comparing the state information of the fluid moving the pipe with the information detected from the detection line installed in the pipe, it is possible to increase the reliability of the pipe leak determination and prevent secondary damage in advance.

As described above, with reference to the accompanying drawings with respect to an embodiment of the present invention was looked at in detail.

The above description is merely illustrative of the technical idea of the present invention, and those of ordinary skill in the technical field to which the present invention belongs can make various modifications, changes, and substitutions within the scope not departing from the essential characteristics of the present invention. will be. Accordingly, the embodiments disclosed in the present invention and the accompanying drawings are not intended to limit the technical idea of the present invention, but to explain, and the scope of the technical idea of the present invention is not limited by these embodiments and the accompanying drawings. . The scope of protection of the present invention should be interpreted by the following claims, and all technical ideas within the scope equivalent thereto should be interpreted as being included in the scope of the present invention.

10: piping
11: appearance
12: Introspection
13: Insulation material
14: index line
100: volumetric aberration
100a: Power generation department
100a-1: 1st power generation department
100a-2: 2nd power generation department
110: first pressure sensor
110a: rear pressure sensor
110b: front pressure sensor
120: second pressure sensor
130: control valve
140: temperature sensor
200: power supply
300: control unit
400: management server
500: display unit
600: leak detection unit
700: judgment unit

Claims (13)

delete delete delete delete delete delete delete delete In a pipe having a double pipe structure, a leak detection unit for detecting water leakage using a detection line disposed between the inner pipe and the outer pipe;
A power generation unit disposed in the pipe and generating electric power by using a fluid that moves inside the pipe;
A front pressure sensor and a rear pressure sensor installed in the pipe and transmitting pressure information of the pipe wirelessly using power supplied through the power generation unit;
A determination unit that receives the detection signal of the leak detection unit and detection information of the front pressure sensor and the rear pressure sensor to determine whether a pipe leaks;
Including,
The determination unit transmits an inspection signal to the manager when one abnormal signal is detected among information obtained by comparing a signal received from the detection line and a pressure drop rate of a preset fluid according to a length of a pipe,
When both the signal received from the detection line and the information obtained by comparing the pressure drop rate of the pipe are determined as abnormal signals, the control valve installed in the pipe is closed. delete delete delete delete

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