CN102331736A - A water-saving device - Google Patents

Abstract

The invention discloses water-saving equipment, which comprises a cabinet body, wherein a support is arranged in the cabinet body, the support is arranged in layers, branch pipelines are laid on each layer of the support, each branch pipeline is connected to a washing cylinder after exiting the cabinet body, a water inlet main pipe is arranged at the bottom of one side of the cabinet body, the water inlet main pipe extends upwards along the wall of the cabinet body and is distributed to each branch pipeline at each layer of the support, a sensor, an electromagnetic valve and an adjustable constant flow valve are arranged on each branch pipeline, a PLC central processing unit is arranged outside the cabinet body, the PLC central processing unit consists of a dynamic information acquisition module, a data analysis operation module and a parameter instruction output module, and the sensor, the electromagnetic valve and the adjustable constant flow valve are all connected with the parameter instruction output module of the PLC central processing unit. The invention has the characteristics of simple structure, high water saving rate, no conflict with the existing water saving technology of enterprises and the like, and can be widely applied to water reduction of various industries.

Description

A water-saving device

technical field

The invention relates to a water reduction device in an industrial production process, in particular to a water saving device.

Background technique

The Ministry of Industry and Information Technology issued the "Notice on Printing and Distributing Cleaner Production Technology Implementation Plans for 17 Key Industries Including Polyvinyl Chloride" (Ministry of Industry and Information Technology [2010] No. 104) on March 14, 2010. In order to meet the specific indicators of consumption, each enterprise has to pay attention to the technology of reducing water consumption in the production process. The traditional water consumption reduction technology achieves the purpose of fresh water consumption reduction through reclaimed water reuse technology. The fundamental principle is to increase the proportion of recycled water in total production water by increasing reclaimed water reuse, thereby reducing fresh water consumption Proportion. Reclaimed water reuse—membrane separation method is a commonly used technology, which uses the selectivity of polymers to separate substances, including electrodialysis, reverse osmosis, membrane extraction, ultrafiltration, etc. Electrodialysis is used to treat electroplating industrial wastewater. After treatment, the composition of the wastewater remains unchanged, which is beneficial to return to the tank. Wastewater containing Cu2+, Ni2+, Zn2+, Cr6+ and other metal ions are suitable for electrodialysis treatment. At present, there are complete sets of equipment. The reverse osmosis method has been widely used in the treatment of Zn, Ni, Cr plating rinsing water and mixed heavy metal wastewater. The reverse osmosis method is used to treat electroplating wastewater. After treatment, the wastewater can be reused to achieve a closed loop. There are many research reports on the treatment of electroplating wastewater by liquid film method, and in some fields, the basic theoretical research has entered the preliminary industrial application stage. After years of development, the traditional reclaimed water reuse technology has gradually matured and encountered bottlenecks in technology improvement and cost control. The equipment investment is large, the operating cost is high, and the unit wastewater treatment cost is higher than the unit tap water price. Therefore, only the environment Benefits without economic benefits, bring pure cost to the enterprise.

Contents of the invention

The technical problem to be solved by the present invention is to provide a water-saving device with good water-saving effect and low cost.

The technical solution adopted by the present invention to solve the technical problem is: a water-saving device, including a cabinet, a bracket is arranged in the cabinet, the brackets are arranged in layers, branch pipes are laid on each layer of the bracket, each The branch pipes go out of the cabinet and are connected to the water washing tank. A main water inlet pipe is installed at the bottom of one side of the cabinet body. Sensors, solenoid valves and adjustable constant flow valves are installed on the branch pipeline, and a PLC central processor is arranged outside the cabinet, and the PLC central processor is composed of a dynamic information collection module, a data analysis operation module, and a parameter command output module , the sensor, electromagnetic valve and adjustable constant flow valve are all connected to the parameter instruction output module of the PLC central processing unit.

As an improvement of the above technical solution, the PLC central processing unit is also provided with a failure self-check and production guarantee module.

The beneficial effects of the present invention are: the present invention is used in water-using equipment to reduce the water consumption of water-using equipment by subtracting unreasonable water in production water, so as to achieve the purpose of saving water, and the water-saving rate can reach at least 50% . The invention does not conflict with the traditional water consumption reduction technology, and can further improve on the existing water saving basis of enterprises, and proposes a new direction for water consumption reduction.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is the left view of Fig. 1;

Fig. 3 is the right view of Fig. 1;

Fig. 4 is a schematic diagram of a block structure of a PLC central processing unit.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

With reference to Fig. 1, Fig. 2, Fig. 3, Fig. 4, a kind of water-saving equipment, comprises cabinet body 1, is provided with bracket 2 in cabinet body 1, and bracket 2 is arranged in layers, is laid on each layer of bracket 1 Branch pipelines 3, each branch pipeline 3 is connected to the washing tank after going out of the cabinet body 1. A water inlet main pipe 4 is installed at the bottom of one side of the cabinet body, and the water inlet main pipe 4 extends upward along the wall of the cabinet body 1, and diverts to each branch pipe 3 at each layer of the bracket. A sensor 5, a solenoid valve 6 and an adjustable constant flow valve 7 are installed on the branch pipeline 3, and a PLC central processing unit 8 is arranged outside the cabinet body 1, and the PLC central processing unit 8 is composed of a dynamic information collection module 801, a data analysis operation module 802. The parameter instruction output module 803 is formed. Among them, the dynamic information collection module 801 is responsible for collecting water supply parameters such as water pressure, water temperature, and flow rate on the production line, as well as operation actions of the production line. The data analysis operation module 802 mainly analyzes the collected data and adjusts the operating parameters of the equipment in real time. The parameter command output module 803 is mainly responsible for the data transmission between the PLC central processing unit and the actuator, specifically including: (1) sending the command value to be adjusted to the actuator; (2) collecting the feedback execution value of the actuator, and Compare with the command value; (3) Continue to send the command value until the deviation between the execution value and the command value is within a reasonable range. The PLC central processor is also equipped with a fault self-inspection and production guarantee module 804, its main functions include: (1) analyze and record the actuator fault situation, determine the fault point; (2) analyze and record water pressure, water temperature, flow and other parameters Abnormal situation; (3) Fault warning, notifying the front-line production personnel of equipment failure, the cause of the failure and the solution. Sensor 5, electromagnetic valve 6, adjustable constant flow valve 7 are all connected with the parameter instruction output module 803 of PLC central processing unit 8, and sensor 5 passes the relevant parameter of branch pipeline to the parameter instruction output module 803 of PLC central processing unit 8, The parameter command output module 803 transmits the command to the solenoid valve 6 and the adjustable constant flow valve 7 to control the water consumption of the water equipment.

Working principle of the present invention: Since the water requirements of each washing process in the production process are different, engineering personnel establish a mathematical model for each washing process as an independent individual, and the data analysis operation module is based on the water pressure collected by the dynamic information collection module , water temperature, flow and other parameters and corresponding mathematical models are compared and analyzed, the compensation coefficient is calculated, the operating parameters of the equipment are adjusted in real time, and accurate water supply is realized in terms of time and flow according to the operation of the production line, so as to avoid unreasonable water consumption and achieve Water saving purpose.

The present invention is tested on the sinking copper production line, the thickened copper production line and the electric nickel-gold production line of a high-precision high-density circuit board factory in Jiangxi. Finally, it is obtained: the water-saving rate of the sinking copper production line is 58%, the water-saving rate of the thickened copper production line is 59%, and the water-saving rate of the electro-nickel-gold production line is 48%. At the same time, the water washing tank and the medicine tank have been measured, and it is found that the use of the invention has no negative impact on the changing cycle of the water washing tank and the service life of the medicine tank.

Although the embodiments of the present invention have been described above with reference to the accompanying drawings, those skilled in the art can make various variations or modifications within the scope of the claims. the

Claims (2)

1. A kind of water-saving equipment, it is characterized in that, comprises cabinet body, is provided with bracket in cabinet, and described bracket is arranged in layers, is laid with branch pipeline on each layer of bracket, and each branch pipeline connects after going out of cabinet body To the water washing tank, a water inlet main pipe is installed at the bottom of one side of the cabinet body. The water inlet main pipe extends upward along the cabinet body wall and diverts to each branch pipe at each layer of support. On the branch pipe is installed Sensors, solenoid valves and adjustable constant flow valves are equipped with a PLC central processor outside the cabinet. The PLC central processor is composed of a dynamic information collection module, a data analysis operation module, and a parameter command output module. The sensor, solenoid valve and the adjustable constant flow valve are all connected with the parameter instruction output module of the PLC central processing unit. 2. A kind of water-saving equipment according to claim 1, characterized in that, said PLC central processing unit is also provided with a fault self-check and production guarantee module.

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