Seawater chlorine production system and sediment waste liquid recycling device thereof

Abstract

The utility model discloses a seawater chlorine production system and a sediment waste liquid recycling device thereof. The sediment waste liquid recycling device comprises a sediment tank, a clear liquid tank, a clear liquid conveying unit and a clear liquid conveying pipe, the sediment pool is connected with the bottom of a sodium hypochlorite storage device in the seawater chlorine production system, and the sediment pool is used for containing sediment output by the sodium hypochlorite storage device; the clarified liquor tank is used for accommodating the clarified liquor output from the sediment tank; the clarified liquid conveying unit is communicated with a first end of the clarified liquid conveying pipe, and the clarified liquid conveying unit is used for conveying the clarified liquid in the clarified liquid tank into the clarified liquid conveying pipe; and the second end of the clear liquid conveying pipe is communicated with the sodium hypochlorite storage device. The utility model provides a seawater chlorine production system and a sediment waste liquid recycling device thereof, which can solve the problem that sediment blocks a sodium hypochlorite storage device and can also realize the effect of recycling clear liquid.

Description

Technical Field

[0001] The utility model relates to the technical field of sediment and waste liquid treatment, in particular to a seawater chlorination system and a device for recycling sediment and waste liquid thereof. Background Art

[0002] Nuclear power plants or thermal power plants usually adopt an electrolytic seawater chlorination system to inject oxidants or non-oxidants into the circulating water system to inhibit the growth of marine organisms such as fungi, algae, and mussels, prevent marine organisms from entering the circulating water system, and ensure the heat exchange efficiency of the circulating water system and the safe and stable operation of the unit.

[0003] Currently, nuclear power plants generally add sodium hypochlorite solution to the circulating water system. Sodium hypochlorite solution is prepared by electrolyzing seawater and stored in a sodium hypochlorite storage device. According to different seawater qualities, calcium carbonate or magnesium carbonate sediment is generated during the electrolysis of seawater. The sediment is discharged from the bottom of the sodium hypochlorite storage device. Generally, there are fewer calcium and magnesium ions in seawater, and less sediment is generated, which is directly discharged into the sea by adding medicine. For areas where more sediment is generated, the sediment must be discharged. If not discharged in time, the solution will block the sodium hypochlorite storage device and the dosing pipeline, preventing normal dosing to the circulating water system, unable to effectively inhibit the growth of marine organisms, and unable to guarantee the cold source, affecting the safe and stable operation of the unit. Summary of the Utility Model

[0004] The utility model provides a seawater chlorination system and a device for recycling sediment and waste liquid thereof, which can solve the problem of sediment blocking the sodium hypochlorite storage device and achieve the effect of recycling the clarified liquid.

[0005] According to one aspect of the utility model, a device for recycling sediment and waste liquid of a seawater chlorination system is provided. The device for recycling sediment and waste liquid includes: a sediment pool, a clarified liquid pool, a clarified liquid conveying unit, and a clarified liquid transmission pipe;

[0006] The sediment pool is connected to the bottom of the sodium hypochlorite storage device in the seawater chlorination system, and the sediment pool is used to accommodate the sediment output from the sodium hypochlorite storage device;

[0007] The clarified liquid pool is used to accommodate the clarified liquid output from the sediment pool;

[0008] The clarified liquid conveying unit is communicated with the first end of the clarified liquid transmission pipe, and the clarified liquid conveying unit is used to transmit the clarified liquid in the clarified liquid pool into the clarified liquid transmission pipe;

[0009] The second end of the clarified liquid transmission pipe is communicated with the sodium hypochlorite storage device.

[0010] Optionally, the clarified liquid conveying unit includes a pump unit control box, a liquid level detection sub-unit, and a conveying pump unit;

[0011] The liquid level detection sub-unit is used to obtain the liquid level value in the clarified liquid tank;

[0012] The pump unit control box is connected to the liquid level detection sub-unit and the conveying pump unit. The pump unit control box is used to control the start or stop of the conveying pump unit according to the liquid level value in the clarified liquid tank.

[0013] Optionally, the sedimentation tank includes at least two sedimentation sub-tanks, and the clarified liquid tank includes at least two clarified liquid sub-tanks;

[0014] The conveying pump unit includes at least two conveying pumps. The conveying pumps correspond to the clarified liquid sub-tanks one by one. Each conveying pump is communicated with the first end of the clarified liquid transmission pipe. The conveying pump is used to convey the clarified liquid in its corresponding clarified liquid sub-tank into the clarified liquid transmission pipe;

[0015] The liquid level detection sub-unit includes at least two liquid level gauges. Among them, the liquid level gauges correspond to the clarified liquid sub-tanks one by one. The liquid level gauges are used to detect the liquid level value in their corresponding clarified liquid sub-tanks;

[0016] The sedimentation sub-tanks correspond to the clarified liquid sub-tanks one by one;

[0017] The clarified liquid sub-tank is used to hold the clarified liquid output from its corresponding sedimentation sub-tank;

[0018] The pump unit control box is connected to each liquid level gauge and each conveying pump. The pump unit control box is used to control the start of the conveying pump corresponding to a clarified liquid sub-tank when the liquid level value in the clarified liquid sub-tank is higher than a first set value, and is also used to control the stop of the conveying pump corresponding to the clarified liquid sub-tank when the liquid level value in the clarified liquid sub-tank is lower than a second set value, where the first set value is greater than the second set value.

[0019] Optionally, the sediment and waste liquid recycling device provided in this embodiment further includes a storage tank liquid level detection unit;

[0020] The storage tank liquid level detection unit is used to detect the liquid level value in the sodium hypochlorite storage device;

[0021] The pump unit control box is connected to the storage tank liquid level detection unit. The pump unit control box is also used to control the stop of each conveying pump when the liquid level value in the sodium hypochlorite storage device is greater than or equal to a third set value.

[0022] Optionally, the second end of the clarified liquid transmission pipe is located at the bottom of the sodium hypochlorite storage device.

[0023] Optionally, the sediment and waste liquid recycling device provided in this embodiment further includes an exhaust pipe;

[0024] The exhaust pipe is used to discharge the gas stored in the sodium hypochlorite storage device.

[0025] Optionally, the sediment and waste liquid recycling device provided in this embodiment further includes a first butterfly valve, a check valve, and a second butterfly valve;

[0026] The first end of the first butterfly valve is connected to the clarified liquid conveying unit, and the second end of the first butterfly valve is connected to the first end of the check valve;

[0027] The second end of the check valve is connected to the first end of the second butterfly valve;

[0028] The second end of the second butterfly valve is connected to the first end of the clarified liquid transmission pipe.

[0029] Optionally, a part of the clarified liquid transmission pipe passes through the exhaust hole at the top of the sodium hypochlorite storage device.

[0030] Optionally, the sediment and waste liquid recycling device provided in this embodiment further includes a fixing bracket;

[0031] The fixing bracket is used to fix the overflow pipe in the sodium hypochlorite storage device and a part of the clarified liquid transmission pipe located in the sodium hypochlorite storage device.

[0032] According to another aspect of the present invention, a seawater chlorination system is provided. The seawater chlorination system includes an electrolytic seawater chlorination device, a sodium hypochlorite storage device, and the sediment and waste liquid recycling device provided in any embodiment of the present invention.

[0033] The present invention provides a sediment and waste liquid recycling device for a seawater chlorination system. The sedimentation tank in the recycling device can receive the sediment in the sodium hypochlorite storage device in a timely manner, and the clarified liquid tank can accommodate the clarified liquid in the sedimentation tank, thereby achieving the effect of separating the sediment and liquid. The clarified liquid conveying unit can convey the clarified liquid in the clarified liquid tank to the clarified liquid transmission pipe. Since the clarified liquid transmission pipe is connected to the sodium hypochlorite storage device, the clarified liquid can be conveyed back into the sodium hypochlorite storage device again, achieving the effect of recycling the clarified liquid. In summary, the sediment and waste liquid recycling device provided in this embodiment can solve the problem of sediment clogging the sodium hypochlorite storage device and also achieve the effect of recycling the clarified liquid.

[0034] It should be understood that the content described in this part is not intended to identify the key or important features of the embodiments of the present invention, nor is it used to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. Brief Description of the Drawings

[0035] To more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0036] Figure 1 is a schematic structural diagram of a device for recycling sediment and waste liquid in a seawater chlorination system provided according to an embodiment of the present invention;

[0037] Figure 2 is a schematic structural diagram of another device for recycling sediment and waste liquid in a seawater chlorination system provided according to an embodiment of the present invention;

[0038] Figure 3 is a schematic structural diagram of a seawater chlorination system provided according to an embodiment of the present invention. Detailed Embodiments

[0039] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, rather than all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0040] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above drawings are used to distinguish similar objects, and do not necessarily need to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present invention described here can be implemented in an order other than those illustrated or described here. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products, or devices.

[0041] Figure 1 is a schematic structural diagram of a device for recycling sediment and waste liquid in a seawater chlorination system provided according to an embodiment of the present invention, referring to Figure 1, the sediment and waste liquid recycling device 100 provided in this embodiment includes: a sediment pool 110, a clarified liquid pool 120, a clarified liquid conveying unit 130, and a clarified liquid transmission pipe 140; the sediment pool 110 is connected to the bottom of the sodium hypochlorite storage device 200 in the seawater chlorination system, and the sediment pool 110 is used to accommodate the sediment output by the sodium hypochlorite storage device 200; the clarified liquid pool 120 is used to accommodate the clarified liquid output from the sediment pool 110; the clarified liquid conveying unit 130 is communicated with the first end of the clarified liquid transmission pipe 140, and the clarified liquid conveying unit 130 is used to transmit the clarified liquid in the clarified liquid pool 120 into the clarified liquid transmission pipe 140; the second end of the clarified liquid transmission pipe 140 is communicated with the sodium hypochlorite storage device 200.

[0042] Specifically, the setting of the sediment pool 110 can timely discharge the sediment in the sodium hypochlorite storage device 200 into the sediment pool 110, avoiding the sodium hypochlorite storage device 200 from being blocked due to excessive sediment storage.

[0043] When the sediment in the sodium hypochlorite storage device 200 is discharged into the sediment pool 110, part of the sodium hypochlorite solution will be discharged into the sediment pool 110. In this embodiment, the sediment pool 110 and the clarified liquid pool 120 are provided to achieve slag-liquid separation. The clarified liquid pool 120 can accommodate the clarified liquid in the sediment pool 110, and the clarified liquid in the sediment pool 110 can also be called supernatant. The clarified liquid conveying unit 130 can convey the clarified liquid stored in the clarified liquid pool 120 into the clarified liquid transmission pipe 140, and through the clarified liquid transmission pipe 140, the clarified liquid can return to the sodium hypochlorite storage device 200 again, achieving the effect of recycling the clarified liquid.

[0044] The embodiment of the present utility model provides a sediment and waste liquid recycling device for a seawater chlorination system. The sediment pool in the recycling device can timely receive the sediment in the sodium hypochlorite storage device, and the clarified liquid pool can accommodate the clarified liquid in the sediment pool, thereby achieving the effect of slag-liquid separation. The clarified liquid conveying unit can convey the clarified liquid in the clarified liquid pool into the clarified liquid transmission pipe. Since the clarified liquid transmission pipe is communicated with the sodium hypochlorite storage device, the clarified liquid can be conveyed into the sodium hypochlorite storage device again, achieving the effect of recycling the clarified liquid. In summary, the sediment and waste liquid recycling device provided in this embodiment can solve the problem of sediment blocking the sodium hypochlorite storage device and also achieve the effect of recycling the clarified liquid.

[0045] Optionally, Figure 2 is a structural schematic diagram of another sediment and waste liquid recycling device for a seawater chlorination system provided according to the embodiment of the present utility model. Refer to Figure 2, the clarified liquid conveying unit includes a pump unit control box 131, a liquid level detection sub-unit, and a conveying pump unit 132; the liquid level detection sub-unit is used to obtain the liquid level value in the clarified liquid tank 120; the pump unit control box 131 is connected to the liquid level detection sub-unit and the conveying pump unit 132, and the pump unit control box 131 is used to control the start or stop of the conveying pump unit 132 according to the liquid level value in the clarified liquid tank 120.

[0046] Specifically, after starting, the conveying pump unit 132 can convey the clarified liquid in the clarified liquid tank 120 into the clarified liquid transfer pipe 140. The pump unit control box 131 controls the start or stop of the conveying pump unit 132 according to the liquid level value in the clarified liquid tank 120, so as to reasonably control the liquid level in the clarified liquid tank 120, avoid the problem of overflow of the clarified liquid due to too high a liquid level in the clarified liquid tank 120, and also avoid the problem of damage caused by the continuous operation of the conveying pump unit 132 due to too low a liquid level in the clarified liquid tank 120. Exemplarily, when the liquid level in the clarified liquid tank 120 is relatively high, the pump unit control box 131 can control the conveying pump unit 132 to start, so that the clarified liquid in the clarified liquid tank 120 is conveyed into the sodium hypochlorite storage device 200. When the liquid level in the clarified liquid tank 120 is relatively low, the pump unit control box 131 can control the conveying pump unit 132 to stop, so as to stop the transfer of the clarified liquid in the clarified liquid tank 120 into the clarified liquid transfer pipe 140.

[0047] Continue to refer to Figure 2 , the sedimentation tank 110 includes at least two sedimentation sub-tanks 111, and the clarified liquid tank 120 includes at least two clarified liquid sub-tanks 121; the conveying pump unit 132 includes at least two conveying pumps 1321, and the conveying pumps 1321 correspond to the clarified liquid sub-tanks 121 one by one. Each conveying pump 1321 is communicated with the first end of the clarified liquid transfer pipe 140, and the conveying pump 1321 is used to convey the clarified liquid in its corresponding clarified liquid sub-tank 121 into the clarified liquid transfer pipe 140; the liquid level detection sub-unit includes at least two liquid level gauges 133. Among them, the liquid level gauges 133 correspond to the clarified liquid sub-tanks 121 one by one, and the liquid level gauges 133 are used to detect the liquid level value in their corresponding clarified liquid sub-tanks 121; the sedimentation sub-tanks 111 correspond to the clarified liquid sub-tanks 121 one by one; the clarified liquid sub-tanks 121 are used to accommodate the clarified liquid output from their corresponding sedimentation sub-tanks 111; the pump unit control box 131 is connected to each liquid level gauge 133 and each conveying pump 1321. The pump unit control box 131 is used to control the start of the conveying pump 1321 corresponding to a clarified liquid sub-tank 121 when the liquid level value in the clarified liquid sub-tank 121 is higher than the first set value, and is also used to control the stop of the conveying pump 1321 corresponding to the clarified liquid sub-tank 121 when the liquid level value in a clarified liquid sub-tank 121 is lower than the second set value, where the first set value is greater than the second set value.

[0048] Specifically, each sedimentation sub-tank 111 is connected to the bottom of the sodium hypochlorite storage device 200. After the sedimentation tank 110 and the clarified liquid tank 120 are used for a long time, they need to be cleaned or repaired and cannot accommodate the sediment output from the sodium hypochlorite storage device 200. In this embodiment, at least two sedimentation sub-tanks 111 and at least two clarified liquid sub-tanks 121 are provided. When some of the sedimentation sub-tanks 111 and the clarified liquid sub-tanks 121 are under repair, the remaining sedimentation sub-tanks 111 and clarified liquid sub-tanks 121 can be used to accommodate the sediment output from the sodium hypochlorite storage device 200, so as not to delay the sediment output from the sodium hypochlorite storage device 200.

[0049] In this embodiment, a corresponding liquid level gauge 133 and a delivery pump 1321 are provided for each clarified liquid sub-tank 121, so that the liquid level of each clarified liquid sub-tank 121 can be reasonably controlled. The liquid level gauge 133 can be a radar liquid level gauge. The first set value can be -1.5 m, and the second set value can be -4.1 m.

[0050] The control principle of the pump unit control box 131 for controlling each delivery pump 1321 can be as follows: when the liquid level (-4.3 m to -0.35 m) of a clarified liquid sub-tank 121 rises above the first set value (the first set value can be -1.5 m), the secondary meter supporting the liquid level gauge 133 of this clarified liquid sub-tank 121 sends a high switching signal to the pump unit control box 131, and the pump unit control box 131 interlocks to start the delivery pump 1321 corresponding to this clarified liquid sub-tank 121; when the liquid level of a clarified liquid sub-tank 121 drops below the second set value (the second set value can be -4.1 m), the secondary meter supporting the liquid level gauge 133 of this clarified liquid sub-tank 121 sends a low switching signal to the pump unit control box 131, and the pump unit control box 131 interlocks to stop the delivery pump 1321 corresponding to this clarified liquid sub-tank 121.

[0051] Optionally, the sediment and waste liquid recycling device provided in this embodiment further includes a storage tank liquid level detection unit; the storage tank liquid level detection unit is used to detect the liquid level value in the sodium hypochlorite storage device; the pump unit control box is connected to the storage tank liquid level detection unit, and the pump unit control box is further used to control the shutdown of each delivery pump when the liquid level value in the sodium hypochlorite storage device is greater than or equal to the third set value.

[0052] Specifically, the third set value can be set according to requirements. Exemplarily, the third set value can be the maximum value of the solution volume that the sodium hypochlorite storage device can store. When the liquid level of the sodium hypochlorite storage device reaches the high-high value, the pump unit control box controls all the delivery pumps to stop delivering the clarified liquid to the clarified liquid transfer pipe, preventing the solution in the sodium hypochlorite storage device from overflowing.

[0053] Optionally, the second end of the clarified liquid transfer pipe is located at the bottom of the sodium hypochlorite storage device.

[0054] Specifically, the second end of the clarified liquid transfer pipe is arranged at the bottom of the sodium hypochlorite storage device, which can avoid the phenomenon of clarified liquid splashing when the clarified liquid transfer pipe transfers clarified liquid to the sodium hypochlorite storage device.

[0055] Optionally, continue to refer to Figure 2 The sediment and waste liquid recycling device provided in this embodiment further includes an exhaust pipe 141; the exhaust pipe 141 is used to discharge the gas stored in the sodium hypochlorite storage device 200.

[0056] Specifically, the exhaust pipe 141 can be connected to the second end of the clarified liquid transfer pipe 140. Exhaust holes are provided in the exhaust pipe 141, which can timely discharge the gas in the sodium hypochlorite storage device 200, thus solving the problem of gas accumulation in the sodium hypochlorite storage device 200.

[0057] Optionally, continue to refer to Figure 2 The sediment and waste liquid recycling device provided in this embodiment further includes a first butterfly valve 151, a check valve 152, and a second butterfly valve 153; the first end of the first butterfly valve 151 is connected to the clarified liquid conveying unit, and the second end of the first butterfly valve 151 is connected to the first end of the check valve 152; the second end of the check valve 152 is connected to the first end of the second butterfly valve 153; the second end of the second butterfly valve 153 is connected to the first end of the clarified liquid transfer pipe 140.

[0058] Specifically, the first butterfly valve 151 and the second butterfly valve 153 arranged downstream of the delivery pump 1321 are used for the maintenance of the clarified liquid transfer pipe 140 or the check valve 152. The check valve 152 is provided to prevent the clarified liquid in the clarified liquid transfer pipe 140 from flowing back.

[0059] Optionally, continue to refer to Figure 2 Part of the clarified liquid transfer pipe 140 passes through the exhaust hole 201 at the top of the sodium hypochlorite storage device 200. With this setting, the existing layout structure of the sodium hypochlorite storage device 200 can be fully utilized. The clarified liquid transfer pipe 140 is passed through the exhaust hole 201 in the sodium hypochlorite storage device 200 to the bottom of the sodium hypochlorite storage device 200, avoiding the need to reconstruct the equipment and reducing the cost.

[0060] Optionally, continue to refer to Figure 2 The sediment and waste liquid recycling device provided in this embodiment further includes a fixing bracket 161; the fixing bracket 161 is used to fix the overflow pipe 202 in the sodium hypochlorite storage device 200 and the part of the clarified liquid transfer pipe 140 located in the sodium hypochlorite storage device 200. With this setting, it can prevent the phenomenon of the clarified liquid transfer pipe 140 shaking during the conveyance of the clarified liquid.

[0061] Figure 3It is a schematic structural diagram of a seawater chlorination system provided according to an embodiment of the present invention. Refer to Figure 3 , the seawater chlorination system provided in this embodiment includes an electrolytic seawater chlorination device 300, a sodium hypochlorite storage device 200, and a sediment and waste liquid recycling device provided in any embodiment of the present invention.

[0062] It should be understood that various forms of processes shown above can be used, reordering, adding or deleting steps. For example, the steps described in the present invention can be executed in parallel, sequentially, or in a different order, as long as the desired results of the technical solution of the present invention can be achieved, and no limitation is made herein.

[0063] The above specific embodiments do not constitute a limitation to the protection scope of the present invention. Those skilled in the art should understand that various modifications, combinations, sub - combinations and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A device for recycling sludge waste liquid from a seawater chlorination system, characterized in that: include: A sedimentation tank, a clarified liquid tank, a clarified liquid transport unit, and a clarified liquid transport pipe; The sedimentation tank is connected to the bottom of the sodium hypochlorite storage device in the seawater chlorination system, and the sedimentation tank is used to accommodate the sediment output by the sodium hypochlorite storage device; The clarified liquid tank is used to contain the clarified liquid output from the sediment tank; The clarified liquid transport unit is in communication with the first end of the clarified liquid transport pipe, and the clarified liquid transport unit is used to transport the clarified liquid in the clarified liquid tank to the clarified liquid transport pipe; The second end of the clarified liquid transmission pipe is communicated with the sodium hypochlorite storage device.

2. The sediment waste liquid recycling device according to claim 1 is characterized in that: The clarified liquid delivery unit comprises a pump unit control box, a liquid level detection subunit and a delivery pump unit; The liquid level detection subunit is used to obtain the liquid level value in the clarified liquid tank; The pump unit control box is connected to the liquid level detection subunit and the delivery pump unit, and the pump unit control box is used to control the delivery pump unit to start or stop according to the liquid level value in the clarified liquid tank.

3. The sediment waste liquid recycling device according to claim 2 is characterized in that: The sedimentation tank comprises at least two sedimentation sub-tanks, and the clarified liquid tank comprises at least two clarified liquid sub-tanks; The delivery pump unit includes at least two delivery pumps, each of which corresponds to the clarified liquid sub-tank on a one-to-one basis, and each of the delivery pumps is connected to the first end of the clarified liquid transmission pipe, and the delivery pump is used to deliver the clarified liquid in the corresponding clarified liquid sub-tank to the clarified liquid transmission pipe; The liquid level detection subunit includes at least two liquid level gauges, wherein the liquid level gauges correspond to the clarified liquid sub-tanks one by one, and the liquid level gauges are used to detect the liquid level values ​​in the corresponding clarified liquid sub-tanks; The sediment sub-tank corresponds to the clarified liquid sub-tank one-to-one; The clarified liquid sub-tank is used to contain the clarified liquid output from the corresponding sediment sub-tank; The pump unit control box is connected to each of the liquid level meters and each of the delivery pumps. The pump unit control box is used to control the delivery pump corresponding to a clarified liquid sub-tank to start when the liquid level value in the clarified liquid sub-tank is higher than a first set value, and is also used to control the delivery pump corresponding to the clarified liquid sub-tank to stop when the liquid level value in the clarified liquid sub-tank is lower than a second set value, wherein the first set value is greater than the second set value.

4. The sediment waste liquid recycling device according to claim 3 is characterized in that: Also included is a storage tank level detection unit; The storage tank liquid level detection unit is used to detect the liquid level value in the sodium hypochlorite storage device; The pump unit control box is connected to the storage tank liquid level detection unit, and the pump unit control box is also used to control each of the delivery pumps to stop operating when the liquid level value in the sodium hypochlorite storage device is greater than or equal to a third set value.

5. The sediment waste liquid recycling device according to claim 1 is characterized in that: The second end of the clarified liquid transmission pipe is located at the bottom of the sodium hypochlorite storage device.

6. The sediment waste liquid recycling device according to claim 1 is characterized in that: Also includes exhaust ducting; The exhaust pipe is used to exhaust the gas stored in the sodium hypochlorite storage device.

7. The sediment waste liquid recycling device according to claim 1 is characterized in that: It also includes a first butterfly valve, a check valve and a second butterfly valve; The first end of the first butterfly valve is connected to the clarified liquid delivery unit, and the second end of the first butterfly valve is connected to the first end of the check valve; The second end of the check valve is connected to the first end of the second butterfly valve; The second end of the second butterfly valve is connected to the first end of the clarified liquid transmission pipe.

8. The sediment waste liquid recycling device according to claim 1 is characterized in that: Part of the clarified liquid transmission pipe passes through the exhaust hole at the top of the sodium hypochlorite storage device.

9. The sediment waste liquid recycling device according to claim 1, characterized in that: Also included is a fixing bracket; The fixing bracket is used to fix the overflow pipe in the sodium hypochlorite storage device and a portion of the clarified liquid transmission pipe located in the sodium hypochlorite storage device.

10. A seawater chlorine production system, characterized in that: It comprises a chlorine production device by electrolyzing seawater, a sodium hypochlorite storage device and a sediment waste liquid recycling device as described in any one of claims 1 to 9.

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