Device and method for automatically merging in and cutting off chlorine compressor of chlor-alkali device

Abstract

The invention relates to a device and a method for automatically merging and cutting off a chlorine press of a chlor-alkali device, the device comprises a device for automatically merging and cutting off the chlorine press of the chlor-alkali device, an outlet of a chlorine main pipe is connected with a first-stage inlet of the chlorine press, a first-stage outlet of the chlorine press is connected with a first-stage cooler inlet of a first-stage cooler, and a second-stage cooler inlet of the first-stage cooler is connected with a second-stage cooler outlet of the second-stage cooler. A first-stage cooler outlet of the first-stage cooler is connected with a second-stage compressor inlet of the second-stage compressor, a second-stage compressor outlet of the second-stage compressor is connected with a second-stage cooler inlet of the second-stage cooler, and a second-stage cooler outlet of the second-stage cooler is connected with a distribution table header pipe and a harm removal tower header pipe. A second-stage cooler outlet of the second-stage cooler is connected with one end of a chlorine compressor return pipe, and the other end of the chlorine compressor return pipe is connected with a chlorine compressor first-stage inlet of the chlorine compressor.

Description

Technical Field

[0001] The present invention relates to the technical fields of chemistry and metallurgy, and in particular to the related technologies of chlor-alkali devices, and specifically to a technology for automatically incorporating and removing a chlorine compressor of a chlor-alkali device. Background Art

[0002] Chlorine is an important chemical with broad application prospects in many fields such as chemical industry, metallurgical industry, electronic industry and pharmaceutical industry. Chlorine is usually produced by electrolyzing saturated sodium chloride solution in industry. The refined brine solution continuously enters the electrolytic cell, and the chloride ions in the brine solution are oxidized to chlorine at the anode. After drying and cooling in the chlorine treatment process, the chlorine is compressed by a chlorine compressor and transported to the distribution station.

[0003] However, in actual production, the stability of the electrolysis pressure differential is particularly important to the system. Stable delivery of the chlorine compressor is the key to pressure differential control. Improper pressure differential control will cause the system to stop and damage the ion membrane.

[0004] The existing pressure difference control method is to manually intervene and incorporate or remove the chlorine compressor according to the load of the electrolytic cell. This method has a large workload during operation and has a certain risk of misjudgment and delay, which affects the stability and safety of the system and is not easy to adjust the system. Summary of the invention

[0005] The purpose of the present invention is to solve the technical problem that in the existing chlorine production technology, the pressure difference is controlled manually according to the lifting and lowering load of the electrolytic cell, which may cause certain misjudgments and delays, thereby affecting the stability and safety of the system, and a device and method for automatically incorporating and removing the chlorine compressor of a chlor-alkali plant are proposed.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0007] A device for automatically incorporating and cutting off a chlorine compressor of a chlor-alkali device, wherein the outlet of a chlorine gas main pipe is connected to a primary inlet of the chlorine compressor, the primary outlet of the chlorine compressor is connected to a primary cooler inlet of a primary cooler, the primary cooler outlet of the primary cooler is connected to a secondary compressor inlet of a secondary compressor, the secondary compressor outlet of the secondary compressor is connected to a secondary cooler inlet of the secondary cooler, the secondary cooler outlet of the secondary cooler is connected to a distribution table main pipe and a pest control tower main pipe, the secondary cooler outlet of the secondary cooler is connected to one end of a chlorine compressor reflux pipe, and the other end of the chlorine compressor reflux pipe is connected to the primary inlet of the chlorine compressor.

[0008] A chlorine compressor inlet regulating valve is provided on the chlorine gas main pipe, a distribution table regulating valve is provided on the distribution table main pipe, and a pest removal tower regulating valve is provided on the pest removal tower main pipe.

[0009] The chlorine compressor also includes a speed regulator: it can automatically adjust the speed of the chlorine compressor to achieve stable system pressure.

[0010] The chlorine compressor inlet regulating valve and the detoxification tower regulating valve are connected to the control system. If the pressure difference exceeds the control range, stop the operation and wait for the system to adjust the pressure difference to within the range and continue to adjust until the control target is achieved.

[0011] The chlorine compressor reflux regulating valve is connected to the control system. If the pressure difference exceeds the control range, the operation is stopped. The reflux regulating valve controller is set to automatic mode. The outlet pressure change trend is determined to select the rate of opening the outlet valve.

[0012] After starting, open the chlorine compressor inlet regulating valve and the pest control tower regulating valve to determine the pressure difference in the main pipe. Close the chlorine compressor reflux valve, increase the unit pressure, determine that the outlet pressure is greater than the distribution table, open the distribution table regulating valve, monitor the outlet pressure change speed, select the valve opening change rate, and close the pest control tower regulating valve.

[0013] The steps for automatically cutting off the chlorine compressor include opening the reflux valve, closing the air inlet valve, opening the decontamination tower, closing the distribution valve, and stopping the chlorine compressor.

[0014] During operation, the control system selects the chlorine compressor's integration or removal function. When the chlorine compressor's integration function is selected, the control system will first perform a series of preparations, including checking that the chlorine compressor's manual valve is fully open, the outlet is fully closed, the reflux is fully open, and the harm removal tower regulating valve is fully closed, and a pop-up window is displayed for confirmation. Then, according to the preset program, the control system will automatically control the chlorine compressor's startup process.

[0015] During the startup of the chlorine compressor, the chlorine from the chlorine main pipe enters from the first-level inlet of the chlorine compressor for compression, is discharged from the first-level outlet of the chlorine compressor, enters the first-level cooler for cooling, then enters the second-level compressor through the second-level compressor inlet for compression again, is discharged from the second-level compressor outlet, enters the second-level cooler for cooling, and finally enters the distribution table main pipe from the second-level cooler outlet to be sent to the downstream chlorine product production device or chlorine liquefaction station.

[0016] In this process, the control system will automatically adjust the opening of the chlorine compressor inlet regulating valve and the pest control tower regulating valve according to system pressure and flow parameters to control the flow and pressure of chlorine. At the same time, the control system will also automatically adjust the opening of the chlorine compressor reflux regulating valve as needed to maintain system stability.

[0017] When the chlorine compressor is integrated, the control system will automatically control the opening of the regulating valve of the distribution station to meet the needs of the system. At the same time, the control system will also automatically adjust the opening of the regulating valve of the pest control tower as needed to maintain the stability of the system.

[0018] During the operation of the chlorine compressor, the control system will automatically adjust the speed of the chlorine compressor through the speed regulator to achieve the stability of the system pressure. If the pressure difference exceeds the control range, the control system will automatically stop the operation and adjust the system pressure difference to within the control range, and then continue to adjust until the control target is achieved.

[0019] If the chlorine compressor needs to be cut off, the control system will automatically close the inlet regulating valve and the distribution table regulating valve of the chlorine compressor according to the preset program, and open the reflux valve and the pest control tower regulating valve at the same time, so that the chlorine compressor gradually exits the operating state and finally stops the operation of the chlorine compressor.

[0020] When the device is used, the following steps are included:

[0021] Step S1: Function item selection: selecting the incorporation or removal function of the chlorine compressor through the control system;

[0022] Step S2: On-site preparation: ensure that the on-site equipment is in good condition and confirm that all parameters are set correctly;

[0023] Step S3: starting the chlorine compressor: automatically controlling the starting process of the chlorine compressor according to a preset program;

[0024] Step S4: Open the chlorine compressor inlet regulating valve and the pest removal tower regulating valve: automatically adjust the opening of the inlet regulating valve and the pest removal tower regulating valve according to system pressure, flow and other parameters;

[0025] Step S5: closing the chlorine compressor reflux regulating valve: after the chlorine compressor is started, the opening of the reflux regulating valve is automatically adjusted according to needs;

[0026] Step S6: Open the regulating valve of the distribution station: automatically control the opening of the regulating valve of the distribution station according to system requirements;

[0027] Step S7: Close the regulating valve of the decontamination tower: After the chlorine compressor is integrated, the opening of the regulating valve of the decontamination tower is automatically adjusted as needed.

[0028] The chlorine compressor also includes a speed regulator, which can automatically adjust the speed of the chlorine compressor to achieve stable system pressure;

[0029] The chlorine compressor inlet regulating valve and the detoxification tower regulating valve are connected to the control system. If the pressure difference exceeds the control range, stop the operation and wait for the system to adjust the pressure difference to within the range and continue to adjust until the control target is achieved;

[0030] The chlorine compressor reflux regulating valve is connected to the control system. If the pressure difference exceeds the control range, the operation is stopped. The reflux regulating valve controller is set to automatic mode, and the outlet pressure change trend is determined to select the rate of opening the outlet valve.

[0031] A method for automatically incorporating and removing a chlorine compressor in a chlor-alkali plant comprises the following steps:

[0032] Step S1: Function item selection: selecting the incorporation or removal function of the chlorine compressor through the control system;

[0033] Step S2: On-site preparation: ensure that the on-site equipment is in good condition and confirm that all parameters are set correctly;

[0034] Step S3: starting the chlorine compressor: automatically controlling the starting process of the chlorine compressor according to a preset program;

[0035] Step S4: Open the chlorine compressor inlet regulating valve and the pest removal tower regulating valve: automatically adjust the opening of the inlet regulating valve and the pest removal tower regulating valve according to system pressure, flow and other parameters;

[0036] Step S5: closing the chlorine compressor reflux regulating valve: after the chlorine compressor is started, the opening of the reflux regulating valve is automatically adjusted according to needs;

[0037] Step S6: Open the regulating valve of the distribution station: automatically control the opening of the regulating valve of the distribution station according to system requirements;

[0038] Step S7: Close the regulating valve of the decontamination tower: After the chlorine compressor is integrated, the opening of the regulating valve of the decontamination tower is automatically adjusted as needed.

[0039] The chlorine compressor also includes a speed regulator, which can automatically adjust the speed of the chlorine compressor to achieve stable system pressure;

[0040] The chlorine compressor inlet regulating valve and the detoxification tower regulating valve are connected to the control system. If the pressure difference exceeds the control range, stop the operation and wait for the system to adjust the pressure difference to within the range and continue to adjust until the control target is achieved;

[0041] The chlorine compressor reflux regulating valve is connected to the control system. If the pressure difference exceeds the control range, the operation is stopped. The reflux regulating valve controller is set to automatic mode, and the outlet pressure change trend is determined to select the rate of opening the outlet valve.

[0042] Compared with the prior art, the present invention has the following technical effects:

[0043] The present invention significantly reduces the frequency of manual intervention and the risk of misjudgment by automatically controlling the incorporation and removal process of the chlorine compressor, thereby improving the stability and safety of the system. At the same time, by accurately controlling the opening of each valve and the rotation speed of the chlorine compressor, accurate regulation of the system pressure and flow is achieved, further improving the stability and efficiency of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] The present invention will be further described below in conjunction with the accompanying drawings and embodiments:

[0045] Figure 1 It is a schematic diagram of the overall structure of the device in the present invention;

[0046] Figure 2 Flow chart of the method of the present invention. DETAILED DESCRIPTION

[0047] like Figure 1 As shown, a device for automatically incorporating and cutting off a chlorine compressor of a chlor-alkali device, wherein the outlet of the chlorine main pipe is connected to the primary inlet of the chlorine compressor, the primary outlet of the chlorine compressor is connected to the primary cooler inlet of a primary cooler, the primary cooler outlet of the primary cooler is connected to the secondary compressor inlet of a secondary compressor, the secondary compressor outlet of the secondary compressor is connected to the secondary cooler inlet of the secondary cooler, the secondary cooler outlet of the secondary cooler is connected to the distribution table main pipe and the pest removal tower main pipe, the secondary cooler outlet of the secondary cooler is connected to one end of a chlorine compressor reflux pipe, and the other end of the chlorine compressor reflux pipe is connected to the primary inlet of the chlorine compressor.

[0048] A chlorine compressor inlet regulating valve is provided on the chlorine gas main pipe, a distribution table regulating valve is provided on the distribution table main pipe, and a pest removal tower regulating valve is provided on the pest removal tower main pipe.

[0049] The chlorine compressor also includes a speed regulator: it can automatically adjust the speed of the chlorine compressor to achieve stable system pressure.

[0050] The chlorine compressor inlet regulating valve and the detoxification tower regulating valve are connected to the control system. If the pressure difference exceeds the control range, stop the operation and wait for the system to adjust the pressure difference to within the range and continue to adjust until the control target is achieved.

[0051] The chlorine compressor reflux regulating valve is connected to the control system. If the pressure difference exceeds the control range, the operation is stopped. The reflux regulating valve controller is set to automatic mode. The outlet pressure change trend is determined to select the rate of opening the outlet valve.

[0052] After starting, open the chlorine compressor inlet regulating valve and the pest control tower regulating valve to determine the pressure difference in the main pipe. Close the chlorine compressor reflux valve, increase the unit pressure, determine that the outlet pressure is greater than the distribution table, open the distribution table regulating valve, monitor the outlet pressure change speed, select the valve opening change rate, and close the pest control tower regulating valve.

[0053] The steps for automatically cutting off the chlorine compressor include opening the reflux valve, closing the air inlet valve, opening the decontamination tower, closing the distribution valve, and stopping the chlorine compressor.

[0054] During operation, the control system selects the chlorine compressor's integration or removal function. When the chlorine compressor's integration function is selected, the control system will first perform a series of preparations, including checking that the chlorine compressor's manual valve is fully open, the outlet is fully closed, the reflux is fully open, and the harm removal tower regulating valve is fully closed, and a pop-up window is displayed for confirmation. Then, according to the preset program, the control system will automatically control the chlorine compressor's startup process.

[0055] During the startup of the chlorine compressor, the chlorine from the chlorine main pipe enters from the first-level inlet of the chlorine compressor for compression, is discharged from the first-level outlet of the chlorine compressor, enters the first-level cooler for cooling, then enters the second-level compressor through the second-level compressor inlet for compression again, is discharged from the second-level compressor outlet, enters the second-level cooler for cooling, and finally enters the distribution table main pipe from the second-level cooler outlet to be sent to the downstream chlorine product production device or chlorine liquefaction station.

[0056] In this process, the control system will automatically adjust the opening of the chlorine compressor inlet regulating valve and the pest control tower regulating valve according to system pressure and flow parameters to control the flow and pressure of chlorine. At the same time, the control system will also automatically adjust the opening of the chlorine compressor reflux regulating valve as needed to maintain system stability.

[0057] When the chlorine compressor is integrated, the control system will automatically control the opening of the regulating valve of the distribution station to meet the needs of the system. At the same time, the control system will also automatically adjust the opening of the regulating valve of the pest control tower as needed to maintain the stability of the system.

[0058] During the operation of the chlorine compressor, the control system will automatically adjust the speed of the chlorine compressor through the speed regulator to achieve the stability of the system pressure. If the pressure difference exceeds the control range, the control system will automatically stop the operation and adjust the system pressure difference to within the control range, and then continue to adjust until the control target is achieved.

[0059] If the chlorine compressor needs to be cut off, the control system will automatically close the inlet regulating valve and the distribution table regulating valve of the chlorine compressor according to the preset program, and open the reflux valve and the pest control tower regulating valve at the same time, so that the chlorine compressor gradually exits the operating state and finally stops the operation of the chlorine compressor.

[0060] like Figure 2 As shown, when the device is used, it includes the following steps:

[0061] Step S1: Function item selection: selecting the incorporation or removal function of the chlorine compressor through the control system;

[0062] Step S2: On-site preparation: ensure that the on-site equipment is in good condition and confirm that all parameters are set correctly;

[0063] Step S3: starting the chlorine compressor: automatically controlling the starting process of the chlorine compressor according to a preset program;

[0064] Step S4: Open the chlorine compressor inlet regulating valve and the pest removal tower regulating valve: automatically adjust the opening of the inlet regulating valve and the pest removal tower regulating valve according to system pressure, flow and other parameters;

[0065] Step S5: closing the chlorine compressor reflux regulating valve: after the chlorine compressor is started, the opening of the reflux regulating valve is automatically adjusted according to needs;

[0066] Step S6: Open the regulating valve of the distribution station: automatically control the opening of the regulating valve of the distribution station according to system requirements;

[0067] Step S7: Close the regulating valve of the decontamination tower: After the chlorine compressor is integrated, the opening of the regulating valve of the decontamination tower is automatically adjusted as needed.

[0068] The chlorine compressor also includes a speed regulator, which can automatically adjust the speed of the chlorine compressor to achieve stable system pressure;

[0069] The chlorine compressor inlet regulating valve and the detoxification tower regulating valve are connected to the control system. If the pressure difference exceeds the control range, stop the operation and wait for the system to adjust the pressure difference to within the range and continue to adjust until the control target is achieved;

[0070] The chlorine compressor reflux regulating valve is connected to the control system. If the pressure difference exceeds the control range, the operation is stopped. The reflux regulating valve controller is set to automatic mode, and the outlet pressure change trend is determined to select the rate of opening the outlet valve.

[0071] A method for automatically incorporating and removing a chlorine compressor in a chlor-alkali plant comprises the following steps:

[0072] Step S1: Function item selection: selecting the incorporation or removal function of the chlorine compressor through the control system;

[0073] Step S2: On-site preparation: ensure that the on-site equipment is in good condition and confirm that all parameters are set correctly;

[0074] Step S3: starting the chlorine compressor: automatically controlling the starting process of the chlorine compressor according to a preset program;

[0075] Step S4: Open the chlorine compressor inlet regulating valve and the pest removal tower regulating valve: automatically adjust the opening of the inlet regulating valve and the pest removal tower regulating valve according to system pressure, flow and other parameters;

[0076] Step S5: closing the chlorine compressor reflux regulating valve: after the chlorine compressor is started, the opening of the reflux regulating valve is automatically adjusted according to needs;

[0077] Step S6: Open the regulating valve of the distribution station: automatically control the opening of the regulating valve of the distribution station according to system requirements;

[0078] Step S7: Close the regulating valve of the decontamination tower: After the chlorine compressor is integrated, the opening of the regulating valve of the decontamination tower is automatically adjusted as needed.

[0079] The chlorine compressor also includes a speed regulator, which can automatically adjust the speed of the chlorine compressor to achieve stable system pressure;

[0080] The chlorine compressor inlet regulating valve and the detoxification tower regulating valve are connected to the control system. If the pressure difference exceeds the control range, stop the operation and wait for the system to adjust the pressure difference to within the range and continue to adjust until the control target is achieved;

[0081] The chlorine compressor reflux regulating valve is connected to the control system. If the pressure difference exceeds the control range, the operation is stopped. The reflux regulating valve controller is set to automatic mode, and the outlet pressure change trend is determined to select the rate of opening the outlet valve.

[0082] Example:

[0083] A device for automatically incorporating and cutting off a chlorine compressor of a chlor-alkali device comprises: a chlorine main pipe 1 connected to a primary inlet 2 of a chlorine compressor, a primary outlet 3 of a chlorine compressor connected to a primary cooler inlet 4, a primary cooler outlet 5 connected to a secondary compressor inlet 6, a secondary compressor outlet 7 connected to a secondary cooler inlet 8, a secondary cooler outlet 9 connected to a distribution table main pipe 10 and a pest control tower main pipe 11, a secondary cooler outlet 9 connected to a chlorine compressor reflux pipe, and the other end of the chlorine compressor reflux pipe connected to the primary inlet 2 of the chlorine compressor.

[0084] The chlorine main pipe 1 is provided with a chlorine compressor inlet regulating valve 14, the distribution platform main pipe 10 is provided with a distribution platform regulating valve 15, and the pest removal tower main pipe 11 is provided with a pest removal tower regulating valve 13.

[0085] The reflux includes large reflux and small reflux.

[0086] A method for automatically incorporating and removing a chlorine compressor in a chlor-alkali plant comprises the following steps:

[0087] S1. Function selection: select the incorporation or removal function of the chlorine compressor through the control system;

[0088] S2. Site preparation: Ensure that the on-site equipment is in good condition and confirm that all parameters are set correctly;

[0089] S3, step of starting the chlorine compressor: automatically controlling the starting process of the chlorine compressor according to a preset program;

[0090] S4. Open the chlorine compressor inlet regulating valve and the pest control tower regulating valve: automatically adjust the opening of the inlet regulating valve and the pest control tower regulating valve according to system pressure, flow and other parameters;

[0091] S5. Close the chlorine compressor reflux regulating valve: After the chlorine compressor is started, the opening of the reflux regulating valve is automatically adjusted according to the needs;

[0092] S6. Open the regulating valve of the distribution table: automatically control the opening of the regulating valve of the distribution table according to system requirements;

[0093] S7. Close the regulating valve of the pest removal tower: After the chlorine compressor is integrated, the opening of the regulating valve of the pest removal tower is automatically adjusted according to needs.

[0094] Furthermore, the chlorine compressor also includes a speed regulator: the rotation speed of the chlorine compressor can be automatically adjusted to achieve stability of the system pressure.

[0095] Preferably, the chlorine compressor inlet regulating valve and the detoxification tower regulating valve are connected to the control system, and the operation is stopped when the pressure difference exceeds the control range. The system continues to adjust the pressure difference until it is within the range until the control target is achieved.

[0096] Preferably, the chlorine compressor reflux regulating valve is connected to the control system, and the operation is stopped when the pressure difference exceeds the control range. The reflux regulating valve controller is set to automatic, and the outlet pressure change trend is judged to select the rate of opening the outlet valve.

[0097] As a preferred method, after starting, the chlorine compressor inlet regulating valve and the pest control tower regulating valve are opened to determine the pressure difference of the main pipe. The chlorine compressor reflux valve is closed, the unit is pressurized, and it is determined that the outlet pressure is greater than the distribution table, the distribution table regulating valve is opened, the outlet pressure change speed is monitored, the valve opening change rate is selected, and the pest control tower regulating valve is closed.

[0098] Preferably, the procedure for automatically cutting off the chlorine compressor includes opening the reflux valve, closing the air inlet valve, opening the harm removal tower, closing the distribution station valve, and stopping the chlorine compressor.

[0099] In the present invention, a device for automatically incorporating and removing a chlorine compressor of a chlor-alkali plant adopts the following steps during operation:

[0100] During operation, the control system selects the chlorine compressor's integration or removal function. When the chlorine compressor's integration function is selected, the control system will first perform a series of preparations, including checking that the chlorine compressor's manual valve is fully open, the outlet is fully closed, the reflux is fully open, and the harm removal tower regulating valve is fully closed, and a pop-up window is displayed for confirmation. Then, according to the preset program, the control system will automatically control the chlorine compressor's startup process.

[0101] During the startup of the chlorine compressor, chlorine from the chlorine main pipe 1 enters from the first-level inlet 2 of the chlorine compressor for compression, is discharged from the first-level outlet 3 of the chlorine compressor, enters the first-level cooler for cooling, then enters the second-level compressor through the second-level compressor inlet 6 for compression again, is discharged from the second-level compressor outlet 7, enters the second-level cooler for cooling, and finally enters the distribution table main pipe from the second-level cooler outlet 9 to be sent to the downstream chlorine product production device or chlorine liquefaction station.

[0102] In this process, the control system will automatically adjust the opening of the chlorine compressor inlet regulating valve 14 and the pest control tower regulating valve according to system pressure and flow parameters to control the flow and pressure of chlorine. At the same time, the control system will also automatically adjust the opening of the chlorine compressor reflux regulating valve as needed to maintain the stability of the system.

[0103] When the chlorine compressor is incorporated, the control system will automatically control the opening of the distribution station regulating valve 15 to meet the needs of the system. At the same time, the control system will also automatically adjust the opening of the pest control tower regulating valve as needed to maintain the stability of the system.

[0104] During the operation of the chlorine compressor, the control system will automatically adjust the speed of the chlorine compressor through the speed regulator to achieve the stability of the system pressure. If the pressure difference exceeds the control range, the control system will automatically stop the operation and adjust the system pressure difference to within the control range, and then continue to adjust until the control target is achieved.

[0105] If the chlorine compressor needs to be cut off, the control system will automatically close the inlet regulating valve and the distribution table regulating valve of the chlorine compressor according to the preset program, and open the reflux valve and the pest control tower regulating valve at the same time, so that the chlorine compressor gradually exits the operating state and finally stops the operation of the chlorine compressor.

Claims

1. A device for automatically incorporating and removing a chlorine compressor in a chlor-alkali plant, characterized in that: The outlet of the chlorine main pipe (1) is connected to the primary inlet (2) of the chlorine compressor, the primary outlet (3) of the chlorine compressor is connected to the primary cooler inlet (4) of the primary cooler, the primary cooler outlet (5) of the primary cooler is connected to the secondary compressor inlet (6) of the secondary compressor, the secondary compressor outlet (7) of the secondary compressor is connected to the secondary cooler inlet (8) of the secondary cooler, the secondary cooler outlet (9) of the secondary cooler is connected to the distribution table main pipe (10) and the pest removal tower main pipe (11), the secondary cooler outlet (9) of the secondary cooler is connected to one end of the chlorine compressor reflux pipe, and the other end of the chlorine compressor reflux pipe is connected to the primary inlet (2) of the chlorine compressor.

2. The device according to claim 1, characterized in that A chlorine compressor inlet regulating valve (14) is provided on the chlorine main pipe (1), a distribution platform regulating valve (15) is provided on the distribution platform main pipe (10), and a pest removal tower (11) regulating valve (13) is provided on the pest removal tower main pipe.

3. The device according to claim 1, characterized in that The chlorine compressor also includes a speed regulator: it can automatically adjust the speed of the chlorine compressor to achieve stable system pressure.

4. The device according to claim 1, characterized in that The chlorine compressor inlet regulating valve (13) is connected to the detoxification tower regulating valve and the control system. When the pressure difference exceeds the control range, the operation is stopped. When the system adjusts the pressure difference to within the range, the adjustment is continued until the control target is achieved.

5. The device according to claim 1, characterized in that The chlorine compressor reflux regulating valve is connected to the control system. If the pressure difference exceeds the control range, the operation is stopped. The reflux regulating valve controller is set to automatic mode. The outlet pressure change trend is determined to select the rate of opening the outlet valve.

6. The device according to claim 1, characterized in that After starting, open the chlorine compressor inlet regulating valve and the pest control tower regulating valve, determine the main pipe pressure difference, close the chlorine compressor reflux valve, increase the unit pressure, determine that the outlet pressure is greater than the distribution table, open the distribution table regulating valve, monitor the outlet pressure change rate, select the valve opening change rate, and close the pest control tower regulating valve.

7. The device according to claim 1, characterized in that The steps for automatic cutting off of the chlorine compressor include opening the reflux valve, closing the air inlet valve, opening the decontamination tower, closing the distribution valve, and stopping the chlorine compressor.

8. The device according to any one of claims 1 to 7, characterized in that During operation, the control system selects the chlorine compressor's integration or removal function. When the chlorine compressor's integration function is selected, the control system will first perform a series of preparatory work, including checking that the chlorine compressor's manual valve is fully open, the outlet is fully closed, the reflux is fully open, and the harm removal tower regulating valve is fully closed, and a pop-up window is displayed for confirmation; then, according to the preset program, the control system will automatically control the chlorine compressor's startup process; During the startup of the chlorine compressor, chlorine from the chlorine main pipe (1) enters through the primary inlet (2) of the chlorine compressor for compression, is discharged from the primary outlet (3) of the chlorine compressor, enters the primary cooler for cooling, then enters the secondary compressor through the secondary compressor inlet (6) for recompression, is discharged from the secondary compressor outlet (7), enters the secondary cooler for cooling, and finally enters the distribution platform main pipe from the secondary cooler outlet (9) to be sent to the downstream chlorine product production device or chlorine liquefaction station; In this process, the control system will automatically adjust the opening of the chlorine compressor inlet regulating valve (14) and the pest control tower regulating valve according to the system pressure and flow parameters to control the flow and pressure of the chlorine gas. At the same time, the control system will also automatically adjust the opening of the chlorine compressor reflux regulating valve according to the needs to maintain the stability of the system. When the chlorine compressor is integrated, the control system will automatically control the opening of the distribution station regulating valve (15) to meet the needs of the system; at the same time, the control system will also automatically adjust the opening of the pest control tower regulating valve as needed to maintain the stability of the system; During the operation of the chlorine compressor, the control system will also automatically adjust the speed of the chlorine compressor through the speed regulator to achieve the stability of the system pressure. If the pressure difference exceeds the control range, the control system will automatically stop the operation and adjust the system pressure difference to within the control range, and then continue to adjust until the control target is achieved; If the chlorine compressor needs to be cut off, the control system will automatically close the inlet regulating valve and the distribution table regulating valve of the chlorine compressor according to the preset program, and open the reflux valve and the pest control tower regulating valve at the same time, so that the chlorine compressor gradually exits the operating state and finally stops the operation of the chlorine compressor.

9. A method for automatically incorporating and removing a chlorine compressor in a chlor-alkali plant, characterized in that: The following steps are involved: Step S1: Function item selection: selecting the incorporation or removal function of the chlorine compressor through the control system; Step S2: On-site preparation: ensure that the on-site equipment is in good condition and confirm that all parameters are set correctly; Step S3: starting the chlorine compressor: automatically controlling the starting process of the chlorine compressor according to a preset program; Step S4: Open the chlorine compressor inlet regulating valve and the pest removal tower regulating valve: automatically adjust the opening of the inlet regulating valve and the pest removal tower regulating valve according to system pressure and flow rate parameters; Step S5: closing the chlorine compressor reflux regulating valve: after the chlorine compressor is started, the opening of the reflux regulating valve is automatically adjusted according to needs; Step S6: Open the regulating valve of the distribution station: automatically control the opening of the regulating valve of the distribution station according to system requirements; Step S7: Close the regulating valve of the decontamination tower: After the chlorine compressor is integrated, the opening of the regulating valve of the decontamination tower is automatically adjusted as needed.

10. The method according to claim 9, characterized in that The chlorine compressor also includes a speed regulator, which can automatically adjust the speed of the chlorine compressor to achieve stable system pressure; The chlorine compressor inlet regulating valve and the detoxification tower regulating valve are connected to the control system. If the pressure difference exceeds the control range, stop the operation and wait for the system to adjust the pressure difference to within the range and continue to adjust until the control target is achieved; The chlorine compressor reflux regulating valve is connected to the control system. If the pressure difference exceeds the control range, the operation is stopped. The reflux regulating valve controller is set to automatic. The outlet pressure change trend is determined to select the rate of opening the outlet valve.

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