Negative pressure dialysis device for acetylene purification waste sodium hypochlorite

Abstract

The utility model relates to negative pressure dialysis technical field discloses a kind of acetylene purification waste sodium hypochlorite negative pressure dialysis device, including negative pressure dialysis tower and PLC controller, the upper portion of negative pressure dialysis tower is provided with spraying mechanism, and spraying mechanism includes annular pipe, and annular pipe is connected with waste sodium hypochlorite liquid inlet pipe, and pressure gauge is installed on liquid inlet pipe, and annular pipe is fixedly installed in multiple spray pipes, and electric control valve one is installed on spray pipe, and water outlet end of spray pipe is installed with shower head;Every spray pipe is connected with T type mixing tank, water distributor and distributor, pulse valve is installed on the discharge pipe of T type mixing pipe, liquid supply pipe and air inlet pipe are connected on T type mixing tank, electric control valve two is installed on the liquid inlet side of liquid supply pipe, liquid inlet end of water distributor is connected with infusion tube, and liquid inlet end of infusion tube is connected with sodium hypochlorite storage tank, and infusion pump is installed on the liquid inlet side of infusion tube, air inlet side of air inlet pipe is installed with electric control valve three, and air inlet end of distributor is connected with main gas supply pipe.

Description

Technical Field

[0001] This utility model belongs to the field of negative pressure desorption technology, specifically a negative pressure desorption device for acetylene-cleaning waste sodium hypochlorite. Background Technology

[0002] Existing acetylene gas recovery systems using acetylene purification and preparation waste sodium hypochlorite solution contain some acetylene gas during production. To extract the acetylene from the waste sodium hypochlorite solution, current technology employs a negative pressure removal tower. This is achieved by reducing the solubility of acetylene in the waste sodium hypochlorite solution through negative pressure, thereby precipitating the acetylene.

[0003] In actual use, the applicant found that the waste sodium hypochlorite negative pressure desorption tower was sprayed into the tower body through the spray mechanism, thereby improving the acetylene precipitation efficiency. However, as the equipment was running, the spray head was prone to scaling and clogging, the maintenance cycle was short, and the existing technology required manual cleaning, which was inefficient and inconvenient.

[0004] To address the aforementioned problems, a negative pressure desorption device for acetylene-cleaning waste sodium hypochlorite is proposed. Utility Model Content

[0005] The purpose of this utility model is to provide a negative pressure desorption device for acetylene-cleaning waste sodium hypochlorite in order to solve the problems mentioned above.

[0006] The technical solution adopted by this utility model is as follows: A negative pressure desorption device for acetylene purification of waste sodium hypochlorite includes a negative pressure desorption tower and a PLC controller. A spraying mechanism is provided on the upper part of the negative pressure desorption tower. The spraying structure includes an annular pipe. A liquid inlet pipe for waste sodium hypochlorite is connected to the annular pipe. A pressure gauge is installed on the liquid inlet pipe. The annular pipe is fixedly installed on multiple spray pipes. An electric control valve is installed on the spray pipe. A spray head is installed at the water outlet end of the spray pipe. Each of the spray pipes is connected to a T-type mixing tank, a water distributor, and a generator. A pulse valve is installed on the discharge pipe of the T-type mixing pipe. The T-type mixing tank is connected to a sodium hypochlorite supply pipe and a compressed air inlet pipe. An electrically controlled valve is installed on the inlet side of the supply pipe. The inlet end of the supply pipe is connected to the water distributor. The inlet end of the water distributor is connected to a delivery pipe. The inlet end of the delivery pipe is connected to a sodium hypochlorite storage tank. A delivery pump is installed on the inlet side of the delivery pipe. An electrically controlled valve is installed on the inlet side of the air inlet pipe. The inlet end of the air inlet pipe is connected to the generator. The inlet end of the generator is connected to a main air supply pipe. The pressure gauge, the delivery pump, the first electrically controlled valve, the pulse valve, the second electrically controlled valve, and the third electrically controlled valve are all electrically connected to the PLC controller.

[0007] In a preferred embodiment, a check valve is installed on the outlet side of the liquid supply pipe.

[0008] In a preferred embodiment, a check valve is installed on the liquid outlet side of the air inlet pipe.

[0009] In a preferred embodiment, the main air supply pipe is connected to the factory compressed air delivery pipe.

[0010] In a preferred embodiment, a main solenoid valve is installed on the inlet pipe, and the main solenoid valve is electrically connected to the PLC controller.

[0011] In a preferred embodiment, a second main solenoid valve is installed on the outlet side of the infusion tube, and the second main solenoid valve is electrically connected to the PLC controller.

[0012] In a preferred embodiment, a main power control valve three is installed on the main gas supply pipe, and the main power control valve three is electrically connected to the PLC controller.

[0013] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are: 1. In this utility model, the spray head in the negative pressure desorption tower is automatically cleared by the pulse unclogging system, avoiding manual cleaning, with a high degree of automation, practicality and convenience, and extending the maintenance cycle.

[0014] 2. In this utility model, the spray heads can be cleaned one by one, so that when one spray head is being cleaned, the other spray heads are operating normally, thus achieving cleaning without stopping the machine and without delaying the operation of the negative pressure desorption tower. Attached Figure Description

[0015] Figure 1 This is a simplified schematic diagram of the front view of the present utility model; Figure 2 This is a simplified three-dimensional schematic diagram of the spray structure in this utility model.

[0016] The diagram is labeled as follows: 1-Negative pressure desorption tower, 2-PLC controller, 3-Spray mechanism, 4-Ring pipe, 6-Pressure gauge, 7-Spray pipe, 8-Electrically controlled valve one, 9-Spray head, 10-T-type mixing pipe, 11-Water distributor, 12-Distributor, 13-Pulse valve, 14-Liquid supply pipe, 15-Air inlet pipe, 16-Electrically controlled valve two, 17-Liquid delivery pipe, 18-Storage tank, 19-Transfer pump, 20-Electrically controlled valve three, 21-Main air supply pipe, 22-Check valve one, 23-Check valve two, 24-Main electrically controlled valve one, 25-Main electrically controlled valve one, 26-Main electrically controlled valve three. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below in conjunction with the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0018] The following will combine Figures 1-2 A detailed description is provided of an acetylene purification waste sodium hypochlorite negative pressure desorption device according to an embodiment of this utility model. Example

[0019] This utility model provides a negative pressure desorption device for acetylene purification waste sodium hypochlorite, referencing... Figures 1 to 2 As shown, the structure includes a negative pressure desorption tower 1, with a spray mechanism 3 installed at the top. The spray mechanism 3 includes an annular pipe 4, with an inlet pipe for waste sodium hypochlorite connected to the annular pipe 4. The annular pipe 4 is fixedly installed with multiple spray pipes 7, and spray heads 9 are installed at the outlet end of the spray pipes 7. In this structure, the waste sodium hypochlorite is transported into the annular pipe 4 through the inlet pipe, and then sprayed into the negative pressure desorption tower 1 by the spray heads 9 on the spray pipes 7, thereby performing negative pressure desorption of acetylene in the waste sodium hypochlorite.

[0020] It should be noted that the above-mentioned negative pressure desorption tower 1 is an existing device. In addition to the spray structure 3, it also has packing inside and a water ring vacuum pump connected to the lower part of the tower to generate negative pressure. These are all technologies well known to those skilled in the art. Furthermore, this application does not make any improvements to the negative pressure desorption tower 1, so it will not be described in detail here.

[0021] refer to Figures 1 to 2As shown, each spray pipe 7 is connected to a T-shaped mixing pipe 10, a water distributor 11, and a distributor 12. The T-shaped mixing pipe 10 is connected to a sodium hypochlorite supply pipe 14 and a compressed air inlet pipe 15. The inlet end of the supply pipe 14 is connected to the water distributor 11, and the inlet end of the water distributor 11 is connected to a delivery pipe 17. The inlet end of the delivery pipe 17 is connected to a sodium hypochlorite storage tank 18. A delivery pump 19 is installed on the inlet side of the delivery pipe 17. The air inlet end of the air inlet pipe 15 is connected to the distributor 12, and the air inlet end of the distributor 12 is connected to a main air supply pipe 21. This structure, when the delivery pump 19 is activated, transports the sodium hypochlorite in the storage tank 18 through the delivery pipe 17 to the water distributor 11, and then distributes it to each supply pipe 10. The compressed air enters the T-type mixing pipe 10 from the main air supply pipe 21 and then enters the distributor 12. The distributor 12 then distributes the compressed air to the inlet pipe 15 and delivers the compressed air to the T-type mixing pipe 10. At this time, the sodium hypochlorite liquid mixes with the compressed air to form a gas-liquid two-phase flow. The mixed fluid then enters the spray pipe 7 and impacts the spray head 9. Sodium hypochlorite can dissolve the organic dirt on the spray head 9 and kill microorganisms, preventing secondary structures. The impact force generated by pulse and bubble breaking can remove inorganic structures as much as possible, thereby automatically clearing the blockage of the spray head 9, extending the maintenance cycle of the equipment, and the automatic clearing is convenient to use.

[0022] refer to Figures 1 to 2 As shown, the system also includes a PLC controller 2, a pressure gauge 6 installed on the inlet pipe, an electrically controlled valve 8 installed on the spray pipe 7, a pulse valve 13 installed on the outlet pipe of the T-type mixing pipe 10, an electrically controlled valve 16 installed on the inlet side of the supply pipe 14, and an electrically controlled valve 20 installed on the inlet side of the air inlet pipe 15. The pressure gauge 6, the delivery pump 19, the electrically controlled valve 8, the pulse valve 13, the electrically controlled valve 16, and the electrically controlled valve 20 are all electrically connected to the PLC controller 2. In this structure, when the pressure gauge 6 detects a 10% increase in the pressure of the inlet pipe, the system determines that the spray head 9 is blocked. Then, the PLC controller 2 will control the equipment to sequentially perform pulse clearing of the spray pipe 7. During clearing, the PLC controller 2 will first... The first electrically controlled valve 8 on the unblocking spray pipe 7 is closed, and then the second electrically controlled valve 16 on the corresponding liquid supply pipe 14 and the third electrically controlled valve 20 on the air inlet pipe 15 are opened. At the same time, the delivery pump 19 is started, so that the sodium hypochlorite liquid and compressed air form a gas-liquid two-phase flow in the T-shaped mixing pipe 10. Then, the PLC controller 2 controls the pulse valve 13 to open continuously, so that the gas-liquid two-phase flow continuously pulses to unblock the spray head 9. After the spray head 9 is cleaned, the above operation is repeated to clean other spray heads 9, so that the unblocking can be automatically controlled. When one spray head 9 is being unblocked, other spray heads 9 are operating normally, so that the cleaning can be carried out without stopping the machine and without delaying the operation of the negative pressure desorption tower 1.

[0023] refer to Figures 1 to 2 As shown, a check valve 22 is installed on the outlet side of the liquid supply pipe 14. This structure uses the check valve 22 to prevent backflow in the liquid supply pipe 14.

[0024] refer to Figures 1 to 2 As shown, a check valve 23 is installed on the liquid outlet side of the air inlet pipe 15. In this structure, the check valve 23 is used to prevent backflow in the air inlet pipe 15.

[0025] refer to Figures 1 to 2 As shown, the main air supply pipe 21 is connected to the factory's compressed air delivery pipe.

[0026] refer to Figures 1 to 2 As shown, a main solenoid valve 24 is installed on the inlet pipe. The main solenoid valve 24 is electrically connected to the PLC controller 2. In this structure, the main solenoid valve 24 is used to control the opening and closing of the inlet pipe 5. The main solenoid valve 24 is normally open. In special circumstances, the inlet pipe can be directly cut off, thereby shutting off the inlet of the desorption tower.

[0027] refer to Figures 1 to 2 As shown, a main solenoid valve 25 is installed on the outlet side of the infusion tube 17. The main solenoid valve 25 is electrically connected to the PLC controller 2. In this structure, the main solenoid valve 25 is used to control the opening and closing of the inlet tube 5. The main solenoid valve 25 is normally open. In special circumstances, the infusion tube 1 can be directly cut off.

[0028] refer to Figures 1 to 2 As shown, a main power control valve 26 is installed on the main gas supply pipe 21. The main power control valve 26 is electrically connected to the PLC controller 2. In this structure, the main power control valve 26 is used to control the opening and closing of the inlet pipe 5. The main power control valve 26 is normally open. In special circumstances, the main gas supply pipe 21 can be directly cut off.

[0029] It should be noted that the PLC controller 2, the solenoid valve, the main solenoid valve, the transfer pump 19, the pulse valve 13, and the pressure gauge 6 mentioned above are all well-known devices in the art, and their specific structures have been disclosed. Therefore, they will not be described in detail here. The preferred model of the PLC controller 2 is SIMATIC S7-1200, the preferred models of the solenoid valve and the main solenoid valve are ASCO 8210, the preferred model of the pulse valve 13 is SMC VQD2121-5L-03F-C6, and the preferred model of the pressure gauge 6 is EJA510E. Furthermore, the specific PLC control devices and programs mentioned above are also technologies well-known to those skilled in the art, and therefore will not be described in detail here.

[0030] The implementation principle of the acetylene purification waste sodium hypochlorite negative pressure desorption device according to an embodiment of this application is as follows: During use, when the pressure gauge 6 detects a 10% increase in the pressure of the inlet pipe, the system determines that the spray pipe 9 is blocked. Then, the PLC controller 2 will control the equipment to perform pulse clearing of the spray pipe 7 in sequence. During clearing, the PLC controller 2 will first close the solenoid valve 8 on the spray pipe 7 that is about to be cleared, and then open the solenoid valve 16 on the corresponding supply pipe 14 and the solenoid valve 20 on the air inlet pipe 15, and simultaneously start the delivery pump 1. 9. This causes the sodium hypochlorite liquid and compressed air to form a gas-liquid two-phase flow in the T-shaped mixing pipe 10. Then, the PLC controller 2 controls the pulse valve 13 to open continuously, so that the gas-liquid two-phase flow continuously pulses to clear the blockage of the spray head 9. After the cleaning of this spray head 9 is completed, the above operation is repeated to clean the other spray heads 9, so as to realize the automated control of the blockage clearing. When one spray head 9 is being cleared, the other spray heads 9 are operating normally, so as to realize the cleaning without stopping the machine and without delaying the operation of the negative pressure desorption tower 1.

[0031] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A negative pressure desorption device for acetylene-cleaned waste sodium hypochlorite, comprising a negative pressure desorption tower (1) and a PLC controller (2), characterized in that: The upper part of the negative pressure desorption tower (1) is provided with a spray mechanism (3). The spray mechanism (3) includes an annular pipe (4). The annular pipe (4) is connected to a waste sodium hypochlorite inlet pipe. A pressure gauge (6) is installed on the inlet pipe. The annular pipe (4) is fixedly installed on multiple spray pipes (7). An electric control valve (8) is installed on the spray pipe (7). A spray head (9) is installed at the water outlet end of the spray pipe (7). Each of the spray pipes (7) is connected to a T-shaped mixing pipe (10), a water distributor (11), and a distributor (12). A pulse valve (13) is installed on the discharge pipe of the T-shaped mixing pipe (10). A sodium hypochlorite supply pipe (14) and a compressed air inlet pipe (15) are connected to the T-shaped mixing pipe (10). An electrically controlled valve (16) is installed on the inlet side of the supply pipe (14). The inlet end of the supply pipe (14) is connected to the water distributor (11). The water distributor (11) is connected to a liquid inlet pipe (17), which is connected to a sodium hypochlorite storage tank (18). A delivery pump (19) is installed on the liquid inlet side of the liquid inlet pipe (17), and an electric control valve (20) is installed on the air inlet side of the air inlet pipe (15). The air inlet end of the air inlet pipe (15) is connected to the distributor (12), and the air inlet end of the distributor (12) is connected to a main air supply pipe (21). The pressure gauge (6), the delivery pump (19), the first electrically controlled valve (8), the pulse valve (13), the second electrically controlled valve (16), and the third electrically controlled valve (20) are all electrically connected to the PLC controller (2).

2. The acetylene purification waste sodium hypochlorite negative pressure desorption device as described in claim 1, characterized in that: A check valve (22) is installed on the outlet side of the liquid supply pipe (14).

3. The acetylene purification waste sodium hypochlorite negative pressure desorption device as described in claim 1, characterized in that: A check valve 2 (23) is installed on the liquid outlet side of the air inlet pipe (15).

4. The acetylene purification waste sodium hypochlorite negative pressure desorption device as described in claim 1, characterized in that: The main air supply pipe (21) is connected to the factory's compressed air delivery pipe.

5. The acetylene purification waste sodium hypochlorite negative pressure desorption device as described in claim 1, characterized in that: A main solenoid valve (24) is installed on the inlet pipe, and the main solenoid valve (24) is electrically connected to the PLC controller (2).

6. The acetylene purification waste sodium hypochlorite negative pressure desorption device as described in claim 1, characterized in that: The infusion tube (17) is equipped with a main solenoid valve (25) on the outlet side, and the main solenoid valve (25) is electrically connected to the PLC controller (2).

7. The acetylene purification waste sodium hypochlorite negative pressure desorption device as described in claim 1, characterized in that: A main power control valve (26) is installed on the main gas supply pipe (21), and the main power control valve (26) is electrically connected to the PLC controller (2).

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