CN206747150U - A kind of hinge type ultrasound wave descaling and sound composite cleaning system - Google Patents

Abstract

The utility model relates to the field of pipeline cleaning and descaling, in particular to a hinged ultrasonic descaling and sonochemical composite cleaning system. A hinged ultrasonic descaling and sonochemical composite cleaning system, comprising a transducer unit, a connection unit, and a tension adjustment unit, the transducer unit includes a transducer; the connection unit includes a connection plate and a hinge; the The tension adjustment unit includes a tension regulator; the transducer is installed on the connecting plate, and the inner side of the transducer is closely connected to the outer side of the metal pipe wall to be cleaned; the two adjacent connecting plates for installing the transducer Connected by hinges or tension regulators. The utility model effectively solves the problems faced in the prior art when arranging ultrasonic transducers that the transducer is not facing the center of the pipe diameter, the transducer is in poor contact with the outer surface of the pipe wall, and the number of transducers is difficult to adjust as the pipe diameter changes. and other problems; the utility model can effectively remove the existing dirt on the pipeline and prevent dirt from adhering and depositing.

Description

A hinged ultrasonic descaling and sonochemical composite cleaning system

technical field

The utility model relates to the field of pipeline cleaning and descaling, in particular to a hinged ultrasonic descaling and sonochemical composite cleaning system.

Background technique

Pipeline transportation, railway, highway, air transportation and water transportation have become the current five major transportation means. Pipeline transportation has the advantages of low cost, energy saving, high safety and stable supply in the transportation of liquid, gas and slurry. It has an irreplaceable position in industries such as electricity, electricity and natural gas, so it plays an increasingly important role in the economic and social development of countries around the world. Since the pipelines mainly transport oil and gas, industrial water and other media, these media often contain impurities such as organic matter, H2S, CO2, various ions, bacteria, and sediment, so they are easy to scale. After the pipeline is scaled, the diameter of the pipeline will be reduced, and the flow area will become smaller, resulting in pressure loss, reduced displacement and pipeline blockage, which will increase energy consumption and affect the quality and output of industrial products. Pipeline scaling can also induce local corrosion of pipelines, resulting in frequent pipeline leakage and even perforation, resulting in destructive accidents. The problem of fouling on the inner wall of the pipeline has long plagued the production of all walks of life, causing frequent industrial accidents, which not only caused huge economic losses, but also caused great pollution to the environment. Under the background of building a conservation-oriented society and advocating "energy saving and emission reduction", the solution to this problem is even more urgent. Therefore, appropriate technical measures are taken to prevent and remove scale from pipelines and other equipment, so as to fundamentally solve the scaling problem. It is of great significance to the production, economic benefits and environmental protection of enterprises.

Scaling on the inner wall of the pipeline is common at this stage. In the process of pipeline maintenance, the commonly used descaling methods are roughly divided into three categories, namely, high-pressure water jet descaling, mechanical descaling and chemical descaling. High-pressure water jet descaling uses the high-pressure water generated by the plunger pump to spray to the scale layer through special nozzles. The descaling is thorough and efficient, but the installed capacity is large, the water consumption is high, and there are problems such as water treatment. After cleaning, it cannot be fast and safe. Descaling. The mechanical descaling method can remove carbonized dirt and hard scale, and has little loss to the steel material. However, when cleaning the dirt inside the equipment, the entire equipment usually needs to be disassembled, so the cleaning takes a long time and costs a lot. The chemical descaling method is to prevent scale by adding scale and corrosion inhibitors to the medium, controlling the pH value of the solution, and cathodic protection. Although the antiscalant may solve or alleviate the problem of pipeline fouling, its pollution to the medium cannot be ignored, and the pH value of the medium reduced for descaling will cause non-negligible corrosion on the inner wall of the pipeline, especially in some pipeline facilities that cannot be disassembled In some cases, such as the pipelines of nuclear power plant units, the pipelines cannot be disassembled due to the existence of nuclear pollution, and the antiscalant added for descaling reduces the pH value of the medium and causes non-negligible corrosion to the inner wall of the pipelines.

Ultrasonic descaling technology is a new physical descaling technology, which has many advantages and good descaling effect that traditional descaling methods do not have. It can not only slow down the deposition rate of dirt particles on the surface of heat exchange equipment, but also effectively remove the dirt that has formed. Ultrasonic refers to sound waves with a frequency greater than 20KHz. It has the advantages of good directionality, strong penetrating power, and small propagation attenuation in solids or liquids. It has been widely used in many industries such as chemistry, chemical industry, machinery, and measurement testing. Ultrasonic cleaning Ultrasonic technology is a successful case of ultrasonic application in the field of anti-scaling. Ultrasonic can remove a wide range of dirt, and the descaling speed is fast, which greatly reduces the consumption of water. The key difference between ultrasonic anti-scaling technology and other traditional methods is that it changes the previous method of descaling that only deals with circulating working fluids, and utilizes the principle that pulse elastic wave energy first propagates in metals. The speed of ultrasonic propagation in metal can reach more than 5000m/s, and the energy loss in metal propagation is much smaller than that in water. Ultrasonic vibration first acts on the metal wall, and then transfers the energy to dirt and circulation workers. quality, so that the ultrasonic energy can be used the highest and most effectively. There is a speed difference between the ultrasonic wave propagating between the metal wall surface and the circulating medium, and a shear force will be formed between the metal wall surface and the hard scale layer, and then between the metal wall surface and the soft scale layer. Oscillation occurs between them, fundamentally prevents or removes the deposition of dirt, and realizes the effect of real-time dynamic anti-scaling. It is also worth mentioning that due to the friction between the circulating medium in the pipeline equipment and the solid wall during the flow process, a stagnant boundary layer will be formed in the area near the wall, and the heat transfer process in this part of the area is the heat conduction process of the stagnant medium. Rather than the convective heat transfer process, the thermal conductivity of the medium is usually much lower than the convective heat transfer coefficient, so the existence of the stagnant layer will reduce the heat transfer efficiency of the equipment. When the ultrasonic wave is applied, the high-speed whirl caused by the ultrasonic wave can be effective The destruction of the stagnant layer can also play a certain role in enhancing heat transfer for heat exchange pipes. Using this emerging anti-scaling technology can not only effectively solve the scaling problem of conventional pipelines, but also solve the problem of descaling of nuclear power plant units and other equipment that cannot be disassembled. However, in the existing ultrasonic descaling device, there is a problem that when the ultrasonic transducer is arranged, the transducer is not facing the center of the pipe diameter, the transducer is in poor contact with the outer wall of the pipe wall, and the number of transducers varies with the diameter of the pipe. It is difficult to adjust and other problems, and there are more inconveniences in use.

Utility model content

The purpose of this utility model is to provide a hinged ultrasonic descaling and sonochemical composite cleaning system, which can effectively solve the problem that the transducer is not facing the center of the pipe diameter, the transducer and the ultrasonic transducer are arranged in the prior art. Problems such as poor contact of the outer surface of the pipe wall and difficulty in adjusting the number of transducers as the diameter of the pipe changes; provides a hinged ultrasonic descaling and sonochemical composite cleaning system that can effectively remove existing dirt and prevent dirt from adhering and depositing.

The purpose of this utility model is achieved through the following technical solutions:

A hinged ultrasonic descaling and sonochemical composite cleaning system, comprising a transducer unit, a connection unit, and a tension adjustment unit, the transducer unit includes a transducer; the connection unit includes a connection plate and a hinge; the The tension adjustment unit includes a tension regulator;

The transducer is installed on the connecting plate, and the inner side of the transducer is closely connected to the outer side of the metal pipe wall to be cleaned;

The two adjacent connecting plates for installing the transducers are connected by hinges or tension regulators.

The two adjacent connecting plates for installing the transducers are connected by a binding band.

The connecting plate is a flange connecting plate.

The tension adjuster is composed of a hollow tension adjustment tube provided with internal threads, two tension adjustment rods with connecting rings on the outside that are respectively threaded on the inner left end and the inner right end of the tension adjustment tube; the two outer sides have connecting rings The outer ends of the tension adjustment rods are respectively connected to two adjacent connecting plates for installing transducers through connecting rings.

The hinges on both sides of the connecting plate on which the transducer is installed are arranged symmetrically with respect to the diameter of the metal pipe to be cleaned, and the forces on the transducer on the connecting plate provided by the hinges on both sides are symmetrical with respect to the diameter of the metal pipe to be cleaned, and the hinges on both sides are provided on the connecting plate. The resultant force of the transducer faces the center of the metal pipe to be cleaned, and the reaction force of the outer wall of the metal pipe to be cleaned to the transducer faces outward from the center of the metal pipe to be cleaned.

The transducer model: Huihong HH-5520-6Z or the same type transducer;

The ultrasonic generator model: Huihong HH-3000B or the same type of pulse power supply.

Beneficial effects of the utility model: a hinged ultrasonic descaling and sonochemical composite cleaning system can effectively remove existing dirt and prevent dirt from adhering and depositing; it can effectively solve the problem of changing the ultrasonic transducer in the prior art The transducer is not facing the center of the pipe diameter, the transducer is in poor contact with the outer surface of the pipe wall, and the number of transducers is difficult to adjust with the change of the pipe diameter.

The utility model has the advantages of:

1. It can effectively remove the existing dirt in the pipe diameter, prevent dirt from adhering and depositing, and solve the problems of reduced displacement caused by shrinkage of the pipe diameter and flow area after scaling, local corrosion of the pipe, and even accidents caused by perforation.

2. The connecting unit inside the utility model uses a hinge to connect each transducer, and the number of required transducers and the distance between transducers can be flexibly adjusted according to the actual pipe diameter and demand.

3. The force of a single transducer inside the utility model comes from the hinge connection units on both sides, and the forces on both sides are symmetrical along the center line, ensuring that each transducer body can accurately face the center of the pipe diameter.

4. The utility model adopts a tension regulator that is easy to adjust and use for final tension adjustment, which can adjust the tension of the entire device.

5. The utility model is composed of multiple units connected to each other. When installing the equipment, it does not need to be transported as a whole, and the transportation is convenient.

6. The utility model is easy to install in practical application, and the transducer unit can be flexibly added or removed according to the demand in the severe fouling of the pipeline.

Description of drawings

Figure 1 is a schematic diagram of the overall structure of the hinged ultrasonic descaling and sonochemical composite cleaning system of the present invention;

Figure 2 is a schematic diagram of the force of the transducer;

Fig. 3 is a schematic diagram of the internal partial structure of the utility model;

Fig. 4 is the structural representation of the internal tension regulator of the utility model;

In the figure: 1-hinge; 2-transducer; 3-connecting plate; 4-metal pipe to be cleaned; 5-tension regulator.

detailed description

Below in conjunction with accompanying drawing, the utility model is described in further detail.

Specific implementation mode one:

As shown in Figure 1, Figure 2, Figure 3, and Figure 4, a hinged ultrasonic descaling and sonochemical composite cleaning system includes a transducer unit, a connection unit, and a tension adjustment unit, and the transducer unit includes a transducer energy device 2; the connection unit includes a connection plate 3, a hinge 1; the tension adjustment unit includes a tension regulator 5;

The transducer 2 is installed on the connecting plate 3, and the inner side of the transducer 2 is closely connected to the outer side of the metal pipe 4 to be cleaned;

The two adjacent connecting plates 3 for installing the transducers 2 are connected by a hinge 1 or a tension adjuster 5 .

The two adjacent connecting plates 3 for installing the transducers 2 are connected by a binding band.

The connecting plate 3 is a flange connecting plate.

The tension adjuster 5 is composed of a hollow tension adjustment tube provided with an internal thread, and two tension adjustment rods with connecting rings on the outside that are respectively threaded on the left end of the tension adjustment tube and the right end on the inside of the tension adjustment tube; The outer ends of the tension adjustment rods of the rings are respectively connected to two adjacent connecting plates 3 for installing the transducers 2 through the connecting rings.

The hinges 1 on both sides of the connecting plate 3 where the transducer 2 is installed are arranged symmetrically about the diameter of the metal pipe 4 to be cleaned, and the force that the hinges 1 on both sides give to the transducer 2 on the connecting plate 3 is symmetrical about the diameter of the metal pipe 4 to be cleaned , the resultant force of the hinges 1 on both sides to the transducer 2 on the connecting plate 3 is towards the center of the metal pipe 4 to be cleaned, and the reaction force of the outer wall of the metal pipe 4 to be cleaned to the transducer 2 is directed outward from the center of the metal pipe 4 to be cleaned direction.

Specific implementation mode two:

In the hinged ultrasonic descaling and sonochemical composite cleaning system, the steps of the descaling method include:

Step 1: Calculate the required number of transducers 2, the corresponding transducer 2 models and the location of the transducers 2 according to the actual requirements and the fouling of the metal pipe 4 to be cleaned on site;

Step 2: Fix and install the selected transducers 2 on the corresponding flange connecting plates, and transport them to the corresponding fouling positions of the metal pipes 4 to be cleaned;

Step 3: Connect multiple transducers 2 installed on the connecting plate 3 through hinge 1 or tension regulator 5; connect the transducers 2 installed on the connecting plate 3 tightly to the metal pipe 4 to be cleaned On the outer side of the pipe wall at the fouling position, the entire device is tensioned through the tension regulator 5; the number of transducers 2 matches the actual demand, and the transducers 2 are accurately directed to the center of the diameter of the metal pipe 4 to be cleaned;

On the outer wall part of the metal pipe 4 to be cleaned, where the transducer 2 does not need to be installed, the outer sides of the two transducers 2 arranged on the edge are connected by a binding band, and the installation method is: installed between the transducers 2 on the connecting plate 3 Still connected by the hinge 1 or the tension regulator 5, two tension regulators 5 are respectively connected outside the transducer 2 at the edge, and the metal pipe 4 to be cleaned of the transducer 2 does not need to be arranged between the two tension regulators 5 The outer wall part is connected by a tie belt, and after the overall arrangement of the device is completed, the whole device is tensioned by the tension regulator 5;

Step 4: Connect the selected transducer 2 to the ultrasonic generator. The transducer 2 converts the electronic pulse energy into mechanical energy to generate ultrasonic vibration. The ultrasonic wave acts on the outer wall of the metal pipe 4 to be cleaned, and the ultrasonic vibration acts on the outer wall of the metal pipe 4 to be cleaned. After the wall surface of the metal pipe 4 to be cleaned, the energy is transferred to the diameter of the fouling position of the metal pipe 4 to be cleaned. There is a certain speed difference between the ultrasonic waves propagating in the metal pipe 4 to be cleaned and the liquid medium. The shear force is generated between the hard scale layer at the fouling position, and the vibration effect formed between the surface of the metal pipe 4 to be cleaned and the soft scale layer at the fouling position makes the dirt at the fouling position of the metal pipe 4 to be cleaned loose. melt off.

The model of the transducer 2: Huihong HH-5520-6Z or the same type of transducer; the model of the ultrasonic generator: Huihong HH-3000B or the same type of pulse power supply.

The working principle of the utility model is: the utility model is composed of a transducer unit, a connection unit and a tension adjustment unit. The transducer unit can output ultrasonic waves to act on the outside of the metal pipe 4 to be cleaned, and its quantity can be adjusted according to the The diameter of the metal pipe 4 is different and the degree of dirt adhesion can be flexibly adjusted. The connecting unit is composed of a connecting plate 3 and a hinge 1. The connecting plate 3 is fixed to the transducer 2, and the hinge 1 is connected to the adjacent connecting plate 3 fixed to the transducer 2. , the tension adjustment unit contains a threaded structure, which plays the role of tension adjustment and is used for final fixation; the transducer unit includes a transducer 2, which is connected to the outer diameter of the pipe wall, and the transducer 2 The number can be adjusted according to the actual demand and the fouling of the metal pipe 4 to be cleaned. Multiple transducers 2 are connected to a host of ultrasonic generators; the transducers 2 convert electronic pulse energy into mechanical energy to generate ultrasonic vibrations , and the ultrasonic wave is applied to the metal outer wall surface, and the transducer transmits the ultrasonic wave to the metal pipe 4 to be cleaned during operation. Due to the certain speed difference between the metal pipe diameter and the liquid medium, the ultrasonic wave will be on the metal wall surface and the hard scale Shear force is generated between the layers, and the oscillation formed between the metal wall surface and the soft dirt layer will make the dirt adhere loose and fall off; the connecting unit includes a flange connecting plate 3 and a hinge 1, and a transducer 2 Fixed on the connection plate 3, one end of the connection plate 3 is connected to the other connection plate 3 through the hinge 1; for the transducer unit, the connection units on both sides are symmetrical about the diameter of the metal pipe 4 to be cleaned, so the connection unit gives the transducer The force of the device 2 is also symmetrical about the diameter of the metal tube 4 to be cleaned, the resultant force of the connecting units on both sides of the transducer 2 is directed towards the center of the metal tube 4 to be cleaned, and the reaction force of the transducer 2 on the outer wall of the metal tube 4 to be cleaned is also corresponding The center of the metal pipe 4 to be cleaned is outward, so this structure ensures that the transducer 2 is facing the center of the circle and is in close contact with the outer wall of the metal pipe 4 to be cleaned; the transducer unit inside the utility model is also It can be selected to arrange partly on the outer wall of the metal pipe 4 to be cleaned according to the needs, and the peripheral part of the transducer 2 is not required to be connected with a restraint belt, that is, the transducer units are still connected through the connecting unit, and are respectively connected on the outside of the edge transducer 2 Two tension adjustment units, between the two tension adjustment units, that is, the outer wall part of the metal pipe 4 to be cleaned that does not need to arrange the transducer 2 is connected with a restraint belt. After the overall arrangement is completed, it can be adjusted by adjusting the tension on both sides. unit to tension the entire unit. The utility model can effectively remove the existing dirt on the metal pipe 4 to be cleaned, prevent dirt from adhering and depositing, and solve the problem of reduced displacement caused by the shrinkage of the pipeline after scaling and the reduction of the flow area, local corrosion of the pipeline, and even accidents caused by perforation. question.

The internal ultrasonic wave of the utility model refers to a sound wave with a frequency greater than 20KHz, which has the advantages of good directionality, strong penetrating power, and small propagation attenuation in solid or liquid. Ultrasonic anti-scale descaling technology has changed the previous descaling method that only dealt with circulating working fluid, and utilizes the principle that pulse elastic wave energy first propagates in metal. The speed of ultrasonic propagation in metal can reach more than 5000m/s, and the energy loss in metal propagation is much smaller than that in water. Ultrasonic vibration first acts on the metal wall, and then transfers the energy to dirt and circulation workers. Quality, so that the ultrasonic energy can be used the highest and most effectively. Because there is a certain speed difference between the metal pipe diameter and the liquid medium, the ultrasonic wave will generate shear force between the metal wall surface and the hard scale layer, and between the metal wall surface and the liquid medium. The oscillating action formed between the soft dirt layers will make the dirt adhere loose and fall off. In addition, for heat exchange pipes, due to the friction between the internal circulation medium and the solid wall during the flow process, a stagnant layer boundary layer will be formed in the near wall area, and the heat transfer process in some areas is the heat conduction process of the stagnant medium. It is not a convective heat transfer process. The thermal conductivity of the medium is usually much lower than the convective heat transfer coefficient, so the existence of the stagnant layer will reduce the heat transfer efficiency of the equipment. When the ultrasonic wave is applied, the high-speed whirling caused by the ultrasonic wave can effectively Destruction of the stagnant layer plays a certain role in enhancing heat transfer.

Of course, the above descriptions are not limitations of the present utility model, and the present utility model is not limited to the above-mentioned examples. Changes, modifications, additions or replacements made by those of ordinary skill in the art within the essential scope of the present utility model also belong to Protection scope of the present utility model.

Claims (5)

1. a kind of hinge type ultrasound wave descaling and sound composite cleaning system, including transducer unit, connection unit, tension adjustment Unit, it is characterised in that：The transducer unit includes transducer (2)；The connection unit includes connecting plate (3), hinge (1)；The tension adjustment unit includes tension regulator (5)；

The transducer (2) is arranged on connecting plate (3), and metal tube to be cleaned (4) tube wall is close-coupled on the inside of transducer (2) Outside；

Pass through hinge (1) connection or tension regulator between the two neighboring connecting plate (3) for installing transducer (2) (5) connect.

2. a kind of hinge type ultrasound wave descaling according to claim 1 and sound composite cleaning system, it is characterised in that：Institute State and two neighboring be used to installing between the connecting plates (3) of transducer (2) by fettering band connection.

3. a kind of hinge type ultrasound wave descaling according to claim 1 and sound composite cleaning system, it is characterised in that：Institute It is flange connecting plate to state connecting plate (3).

4. a kind of hinge type ultrasound wave descaling according to claim 1 and sound composite cleaning system, it is characterised in that：Institute Tension regulator (5) is stated by the hollow tension adjustment pipe of setting internal thread, tension adjustment pipe inside left-end and inner side right-hand member to be distinguished Two tension links of the outside with connection ring being connected through a screw thread are formed；Described two outsides carry the tension force of connection ring Adjusting rod outer end connects the two neighboring connecting plate (3) for being used to install transducer (2) by connection ring respectively.

5. a kind of hinge type ultrasound wave descaling according to claim 1 and sound composite cleaning system, it is characterised in that：Institute Connecting plate (3) the both sides hinge (1) for stating installation transducer (2) is set on the diameter symmetry of metal tube to be cleaned (4), both sides hinge Chain (1) gives diameter symmetry of the power of transducer (2) on connecting plate (3) on metal tube to be cleaned (4), and both sides hinge (1) is to company The center of circle made a concerted effort towards metal tube to be cleaned (4) of transducer (2) on fishplate bar (3), metal tube (4) outer wall to be cleaned is to transducer (2) reagency is oriented the center of circle outward direction of metal tube to be cleaned (4).