Waste gas treatment device and electrolyte preparation system

Abstract

The utility model provides a waste gas treatment device which comprises a water-sealed tank, a conveying pump, a liquid discharging assembly and a liquid supplementing assembly, the liquid discharging assembly and the liquid supplementing assembly are both connected with the water-sealed tank and the conveying pump, and the liquid discharging assembly and the liquid supplementing assembly both comprise a conducting state and a cut-off state; when the liquid discharging assembly is in a conducting state and the liquid supplementing assembly is in a cut-off state, the conveying pump can pump out liquid in the water-sealed tank through the liquid discharging assembly; when the liquid discharging assembly is in the cut-off state and the liquid supplementing assembly is in the on state, the conveying pump can pump liquid in the liquid supplementing assembly into the water-sealed tank. Due to the fact that the liquid drainage assembly can be kept connected with the water-sealed tank, the water pump and the hose do not need to be disassembled and assembled every time liquid drainage is conducted, time and labor are saved, and liquid drainage efficiency is improved. And meanwhile, after the liquid is completely discharged, the liquid discharging assembly is switched to a cut-off state, the liquid supplementing assembly is switched to a conducting state, and the liquid in the liquid supplementing assembly is pumped into the water-sealed tank by the conveying pump, so that the liquid in the water-sealed tank is supplemented. The utility model further provides an electrolyte preparation system.

Description

Technical Field

[0001] This application belongs to the technical field of waste gas treatment, and particularly relates to a waste gas treatment device and an electrolyte preparation system. Background Art

[0002] Waste gas is generated during the electrolyte preparation process. The waste gas is flammable. To prevent the spread of fire, a water seal tank with a fire-blocking function is usually set on the waste gas treatment pipeline. Currently, tap water is usually added to the water seal tank. After using it for a period of time, the water in the water seal tank needs to be changed, and before changing the water, the water in the water seal tank needs to be drained first. The waste water in the existing water seal tank usually needs to first open the drain valve at the bottom of the water seal tank, and then connect a water pump and a hose. Each time the waste water is drained, the water pump and the hose need to be installed and disassembled, which is time-consuming and laborious, and the efficiency is low. Utility Model Content

[0003] The technical problem to be solved by this application is that the existing water seal tank drains waste water in a time-consuming and laborious manner with low efficiency. To solve the above technical problem, a waste gas treatment device and an electrolyte preparation system are provided.

[0004] The technical solution proposed by this application is as follows:

[0005] A waste gas treatment device includes a water seal tank, a delivery pump, a liquid discharge assembly, and a liquid supplement assembly. Both the liquid discharge assembly and the liquid supplement assembly are connected to the water seal tank and the delivery pump, and both the liquid discharge assembly and the liquid supplement assembly include a conducting state and a cutoff state;

[0006] When the liquid discharge assembly is in the conducting state and the liquid supplement assembly is in the cutoff state, the delivery pump can pump the liquid in the water seal tank through the liquid discharge assembly; when the liquid discharge assembly is in the cutoff state and the liquid supplement assembly is in the conducting state, the delivery pump can pump the liquid in the liquid supplement assembly into the water seal tank.

[0007] Further, the liquid discharge assembly includes a first liquid discharge pipe, a first liquid discharge valve, a second liquid discharge pipe, and a second liquid discharge valve. The first liquid discharge pipe is connected to the water seal tank and the liquid inlet end of the delivery pump. The first liquid discharge valve is arranged on the first liquid discharge pipe. One end of the second liquid discharge pipe is connected to the liquid outlet end of the delivery pump, and the second liquid discharge valve is arranged on the second liquid discharge pipe.

[0008] Further, the liquid discharge assembly further includes a collection tank, and the end of the second liquid discharge pipe away from the delivery pump is connected to the collection tank.

[0009] Further, the liquid discharge assembly further includes a first liquid level detector, and the first liquid level detector is arranged on the collection tank.

[0010] Further, the exhaust gas treatment device further includes a first pH meter, and the first pH meter is disposed in the water seal tank.

[0011] Further, the liquid supplementing assembly includes a liquid storage tank, a first liquid supplementing pipe, a first liquid supplementing valve, a second liquid supplementing pipe and a second liquid supplementing valve. The liquid storage tank is used for storing an alkaline aqueous solution. The first liquid supplementing pipe is connected to the liquid storage tank and the liquid inlet end of the delivery pump. The first liquid supplementing valve is disposed on the first liquid supplementing pipe. The second liquid supplementing pipe is connected to the water seal tank and the liquid outlet end of the delivery pump. The second liquid supplementing valve is disposed on the second liquid supplementing pipe.

[0012] Further, the liquid supplementing assembly further includes a second liquid level detector, and the second liquid level detector is disposed in the liquid storage tank.

[0013] Further, the liquid supplementing assembly further includes a liquid adding pipe and a liquid adding valve. One end of the liquid adding pipe is connected to the liquid storage tank, and the other end is used for connecting to an external liquid source. The liquid adding valve is disposed on the liquid adding pipe.

[0014] Further, the liquid supplementing assembly further includes a second pH meter, and the second pH meter is disposed in the liquid storage tank.

[0015] An electrolyte preparation system, characterized in that it includes the exhaust gas treatment device as described above.

[0016] When using the above exhaust gas treatment device and it is necessary to drain the liquid in the water seal tank, the liquid discharging assembly is switched to the conducting state, and the liquid supplementing assembly is in the cut-off state. Then, the delivery pump pumps out the liquid in the water seal tank through the liquid discharging assembly until it is drained. Since the liquid discharging assembly can remain connected to the water seal tank, there is no need to disassemble and assemble the water pump and the hose every time when draining the liquid, which saves time and effort and improves the liquid discharging efficiency. At the same time, after draining the liquid, the liquid discharging assembly is switched to the cut-off state, and the liquid supplementing assembly is switched to the conducting state. The delivery pump pumps the liquid in the liquid supplementing assembly into the water seal tank to realize the replenishment of the liquid in the water seal tank.

[0017] In addition, since both the liquid discharging assembly and the liquid supplementing assembly are connected to the delivery pump and realize liquid discharging and liquid supplementing by switching their own states, only one delivery pump is needed for the exhaust gas treatment device for liquid discharging and liquid supplementing, effectively reducing the equipment cost. Description of the Drawings

[0018] The drawings are used to provide further understanding of the present application, and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the present application, and do not constitute a limitation to the present application.

[0019] Figure 1 It is a schematic structural diagram of an exhaust gas treatment device provided by an embodiment of the present application.

[0020] Label Description:

[0021] 100, Exhaust gas treatment device; 111, Water seal tank; 112, Transfer pump; 120, Liquid discharge assembly; 130, Liquid replenishment assembly; 121, First liquid discharge pipe; 122, First liquid discharge valve; 123, Second liquid discharge pipe; 124, Second liquid discharge valve; 125, Collection box; 126, First liquid level detector; 131, Liquid storage tank; 132, First liquid replenishment pipe; 133, First liquid replenishment valve; 134, Second liquid replenishment pipe; 135, Second liquid replenishment valve; 136, Liquid addition pipe; 137, Liquid addition valve; 138, Second liquid level detector; 139, Second pH meter; 113, Intake pipe; 114, Outlet pipe. Detailed implementation manners

[0022] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0023] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present application.

[0024] On the one hand, as Figure 1 shown, the present application provides an exhaust gas treatment device 100, including a water seal tank 111, a transfer pump 112, a liquid discharge assembly 120 and a liquid replenishment assembly 130.

[0025] Both the liquid discharge assembly 120 and the liquid replenishment assembly 130 are connected to the water seal tank 111 and the transfer pump 112, and both the liquid discharge assembly 120 and the liquid replenishment assembly 130 include a conducting state and a cut-off state.

[0026] When the liquid discharge assembly 120 is in the conducting state and the liquid supplementing assembly 130 is in the cut-off state, the transfer pump 112 can pump out the liquid in the water seal tank 111 through the liquid discharge assembly 120, so as to drain the liquid in the water seal tank 111 completely; when the liquid discharge assembly 120 is in the cut-off state and the liquid supplementing assembly 130 is in the conducting state, the transfer pump 112 can pump the liquid in the liquid supplementing assembly 130 into the water seal tank 111, so as to supplement the liquid in the water seal tank 111.

[0027] With the above-mentioned waste gas treatment device 100, when it is necessary to drain the liquid in the water seal tank 111 completely, the liquid discharge assembly 120 is switched to the conducting state, and the liquid supplementing assembly 130 is made to be in the cut-off state. Then, the transfer pump 112 pumps out the liquid in the water seal tank 111 through the liquid discharge assembly 120 until it is drained completely. Since the liquid discharge assembly 120 can remain connected to the water seal tank 111, there is no need to disassemble and assemble the water pump and the hose every time when draining the liquid, which saves time and effort and improves the liquid drainage efficiency. At the same time, after draining the liquid completely, the liquid discharge assembly 120 is switched to the cut-off state, and the liquid supplementing assembly 130 is switched to the conducting state. The transfer pump 112 pumps the liquid in the liquid supplementing assembly 130 into the water seal tank 111, so as to supplement the liquid in the water seal tank 111.

[0028] In addition, since both the liquid discharge assembly 120 and the liquid supplementing assembly 130 are connected to the transfer pump 112 and realize liquid discharge and liquid supplement by switching their own states, only one transfer pump 112 is needed for the waste gas treatment device 100 to set for liquid discharge and liquid supplement, effectively reducing the equipment cost.

[0029] It should be noted that when there is no need for liquid supplement and liquid discharge, both the liquid discharge assembly 120 and the liquid supplementing assembly 130 can be switched to the cut-off state.

[0030] To further understand the present solution, the liquid discharge assembly 120 will be described next:

[0031] In one embodiment, the liquid discharge assembly 120 includes a first liquid discharge pipe 121, a first liquid discharge valve 122, a second liquid discharge pipe 123 and a second liquid discharge valve 124. The first liquid discharge pipe 121 is connected to the water seal tank 111 and the liquid inlet end of the transfer pump 112. The first liquid discharge valve 122 is arranged on the first liquid discharge pipe 121 and is used to control the on-off of the first liquid discharge pipe 121. One end of the second liquid discharge pipe 123 is connected to the liquid outlet end of the transfer pump 112. The second liquid discharge valve 124 is arranged on the second liquid discharge pipe 123 and is used to control the on-off of the second liquid discharge pipe 123.

[0032] It can be seen from this that when both the first liquid discharge valve 122 and the second liquid discharge valve 124 are open, the liquid discharge assembly 120 is in a conducting state, and the transfer pump 112 can pump the liquid in the water seal tank 111 through the first liquid discharge pipe 121 and the second liquid discharge pipe 123; when both the first liquid discharge valve 122 and the second liquid discharge valve 124 are closed, the liquid discharge assembly 120 is in a cut-off state. At the same time, it can be determined that in order to ensure that the liquid in the water seal tank 111 is completely discharged, the first liquid discharge pipe 121 is connected to the bottom of the water seal tank 111.

[0033] Furthermore, the liquid discharge assembly 120 further includes a collection tank 125. One end of the second liquid discharge pipe 123 away from the transfer pump 112 is connected to the collection tank 125, so that the transfer pump 112 can pump the liquid in the water seal tank 111 into the collection tank 125 for collection, facilitating subsequent treatment of the waste liquid.

[0034] In one embodiment, the liquid discharge assembly 120 further includes a first liquid level detector 126. The first liquid level detector 126 is arranged in the collection tank 125 and is used to detect the liquid level height of the waste liquid in the collection tank 125 to prevent the liquid level in the collection tank 125 from being too high and causing an overflow accident. Optionally, the first liquid level detector 126 is a magnetic flap liquid level gauge.

[0035] Next, the liquid replenishment assembly 130 will be described:

[0036] In one embodiment, the liquid replenishment assembly 130 includes a liquid storage tank 131, a first liquid replenishment pipe 132, a first liquid replenishment valve 133, a second liquid replenishment pipe 134, and a second liquid replenishment valve 135. The liquid storage tank 131 is used to store the above-mentioned alkaline aqueous solution. The first liquid replenishment pipe 132 is connected to the liquid storage tank 131 and the liquid inlet end of the transfer pump 112. The first liquid replenishment valve 133 is arranged on the first liquid replenishment pipe 132 and is used to control the on-off of the first liquid replenishment pipe 132. The second liquid replenishment pipe 134 is connected to the water seal tank 111 and the liquid outlet end of the transfer pump 112. The second liquid replenishment valve 135 is arranged on the second liquid replenishment pipe 134 and is used to control the on-off of the second liquid replenishment pipe 134.

[0037] Similarly, it can be known that when both the first liquid replenishment valve 133 and the second liquid replenishment valve 135 are open, the liquid replenishment assembly 130 is in a conducting state, and the transfer pump 112 can pump the liquid in the liquid storage tank 131 into the water seal tank 111 through the first liquid replenishment pipe 132 and the second liquid replenishment pipe 134; when both the first liquid replenishment valve 133 and the second liquid replenishment valve 135 are closed, the liquid replenishment assembly 130 is in a cut-off state. At the same time, it can be determined that in order to facilitate liquid replenishment, the second liquid replenishment pipe 134 is connected to the top of the water seal tank 111.

[0038] Further, the liquid replenishment assembly 130 further includes a liquid filling pipe 136 and a liquid filling valve 137. One end of the liquid filling pipe 136 is connected to the liquid storage tank 131, and the other end is used to connect to an external liquid source. The liquid filling valve 137 is disposed on the liquid filling pipe 136 to control the on-off of the liquid filling pipe 136. In this way, the liquid can be replenished when the liquid in the liquid storage tank 131 is insufficient.

[0039] In addition, in this embodiment, the liquid in the water seal tank 111 is an alkaline aqueous solution to neutralize and remove the acidic gas in the waste gas. It should be noted that in the traditional water seal tank 111, tap water is introduced. After the acidic gas in the waste gas is introduced, the tap water will become acidic liquid, which will corrode the water seal tank 111. Replacing the liquid in the water seal tank 111 with an alkaline aqueous solution can avoid the corrosion of the water seal tank 111. Preferably, the alkaline aqueous solution is a sodium hydroxide aqueous solution.

[0040] It should be noted that the external liquid source can directly supplement the alkaline aqueous solution into the liquid storage tank 131. In other embodiments, the external liquid source can also be tap water. At this time, a feeding port is also provided in the liquid storage tank 131, and the feeding port can be used to add alkaline substances.

[0041] In one embodiment, the waste gas treatment device 100 further includes a first pH meter. The first pH meter is disposed in the water seal tank 111 to detect the pH value of the liquid in the water seal tank 111. In this way, the effectiveness of the liquid can be judged according to the pH value of the liquid in the water seal tank 111, so as to judge whether replacement is needed.

[0042] As an example, when the pH value of the liquid in the water seal tank 111 reaches or is less than 7, it can be determined that the liquid in the water seal tank 111 needs to be replaced. Of course, in other embodiments, it can also be determined according to specific circumstances, which is not limited here.

[0043] In one embodiment, the liquid replenishment assembly 130 further includes a second liquid level detector 138. The second liquid level detector 138 is disposed in the liquid storage tank 131 to detect the liquid level of the liquid in the liquid storage tank 131, so as to conveniently supplement the alkaline aqueous solution or tap water into the liquid storage tank 131 according to the liquid level situation in the liquid storage tank 131, and avoid the situation of lack of liquid or overflow of liquid in the liquid storage tank 131. Optionally, the second liquid level detector 138 is a magnetic flap level gauge.

[0044] In one embodiment, the liquid replenishing assembly 130 further includes a second pH meter 139 disposed in the liquid storage tank 131 for detecting the pH value of the liquid in the liquid storage tank 131, so as to determine the effectiveness of the liquid in the liquid storage tank 131 according to the pH value of the liquid. For example, if the pH value detected by the second pH meter 139 is lower than the target pH value, the pH value can be increased by adding an alkaline substance into the liquid storage tank 131, or the liquid in the liquid storage tank 131 can be directly replaced.

[0045] In combination with the descriptions of the liquid discharging assembly 120 and the liquid replenishing assembly 130 above, it should be further noted that:

[0046] For the convenience of automatic control, the above-mentioned liquid discharging valve and liquid replenishing valve can both adopt electric control valves, and the first pH meter and the second pH meter 139 can both adopt online control. The delivery pump 112, the liquid discharging valve, the liquid replenishing valve, the pH meter and the liquid level detector are electrically connected to the control mechanism, so as to automatically control the liquid discharging and liquid replenishing of the water seal tank 111 in the waste gas treatment device 100 through the control mechanism. In addition, for further convenience of control, the above-mentioned liquid adding valve 137 can also be electrically connected to the control mechanism.

[0047] Since the liquid discharging assembly 120 and the liquid replenishing assembly 130 are connected to the same delivery pump 112, in order to facilitate the connection of the delivery pump 112 to the two mechanisms, three-way joints can be provided at both the liquid inlet end and the liquid outlet end of the delivery pump 112, and the three-way joint at the liquid inlet end is respectively connected to the first liquid discharging pipe 121 and the first liquid replenishing pipe 132, and the three-way joint at the liquid outlet end is respectively connected to the second liquid discharging pipe 123 and the second liquid replenishing pipe 134.

[0048] In a preferred embodiment, the delivery pump 112 is a pneumatic diaphragm pump. In other embodiments, the delivery pump 112 can also adopt other forms of pumps.

[0049] In one embodiment, the waste gas treatment device 100 further includes an air inlet pipe 113 and an air outlet pipe 114. One end of the air inlet pipe 113 penetrates through the water seal tank 111 and extends into the liquid in the water seal tank 111, and one end of the air outlet pipe 114 is connected to the top of the water seal tank 111, and the other end of the air outlet pipe 114 is connected to the waste gas treatment mechanism.

[0050] For the convenience of understanding the technical solution of the present application, here in combination with Figure 1 the working process of the waste gas treatment device 100 in the above embodiment is described as follows:

[0051] When the pH value of the liquid in the water seal tank 111 is normal, the waste gas enters the liquid in the water seal tank 111 through the air inlet pipe 113 and then is discharged into the waste gas treatment mechanism through the air outlet pipe 114. At this time, the liquid discharging valve, the liquid replenishing valve and the delivery pump 112 are all in the closed state.

[0052] When the pH value of the liquid in the water seal tank 111 drops to a preset value, it is necessary to replace the liquid in the water seal tank 111. At this time, the input and output of the waste gas can be stopped. Next, open the first drain valve 122 and the second drain valve 124, start the transfer pump 112, and drain the waste liquid in the water seal tank 111 into the collection tank 125 through the first drain pipe 121 and the second drain pipe 123. After the waste liquid is drained, close the transfer pump 112, the first drain valve 122 and the second drain valve 124, then open the first replenishing valve 133 and the second replenishing valve 135, and at the same time start the transfer pump 112 to add the alkaline aqueous solution into the water seal tank 111 through the first replenishing pipe 132 and the second replenishing pipe 134. After the replenishment is completed, just close the transfer pump 112, the first replenishing valve 133 and the second replenishing valve 135.

[0053] On the other hand, the present application also provides an electrolyte preparation system, which includes the waste gas treatment device 100 in the above embodiment.

[0054] Although the embodiments of the present application have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present application. The scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An exhaust gas treatment device, characterized in that: It includes a water seal tank, a delivery pump, a drainage component and a fluid replenishment component, wherein the drainage component and the fluid replenishment component are both connected to the water seal tank and the delivery pump, and the drainage component and the fluid replenishment component both include a conducting state and a cutoff state; When the drainage component is in a conducting state and the fluid replenishment component is in a cut-off state, the delivery pump can pump out the liquid in the water seal tank through the drainage component; when the drainage component is in a cut-off state and the fluid replenishment component is in a conducting state, the delivery pump can pump the liquid in the fluid replenishment component into the water seal tank.

2. The exhaust gas treatment device according to claim 1, characterized in that: The drainage assembly includes a first drainage pipe, a first drainage valve, a second drainage pipe and a second drainage valve. The first drainage pipe is connected to the water seal tank and the liquid inlet end of the delivery pump, the first drainage valve is arranged on the first drainage pipe, one end of the second drainage pipe is connected to the liquid outlet end of the delivery pump, and the second drainage valve is arranged on the second drainage pipe.

3. The exhaust gas treatment device according to claim 2, characterized in that: The drainage assembly further includes a collecting box, and one end of the second drainage pipe away from the delivery pump is connected to the collecting box.

4. The exhaust gas treatment device according to claim 3, characterized in that: The liquid discharge assembly further includes a first liquid level detector, which is disposed in the collection box.

5. The exhaust gas treatment device according to claim 1, characterized in that: The exhaust gas treatment device further includes a first pH meter, which is disposed in the water seal tank.

6. The exhaust gas treatment device according to claim 1, characterized in that: The refill assembly includes a liquid storage tank, a first liquid refill tube, a first liquid refill valve, a second liquid refill tube and a second liquid refill valve. The liquid storage tank is used to store alkaline aqueous solution. The first liquid refill tube is connected to the liquid storage tank and the liquid inlet end of the delivery pump. The first liquid refill valve is arranged on the first liquid refill tube. The second liquid refill tube is connected to the water seal tank and the liquid outlet end of the delivery pump. The second liquid refill valve is arranged on the second liquid refill tube.

7. The exhaust gas treatment device according to claim 6, characterized in that: The liquid replenishing component also includes a second liquid level detector, which is arranged on the liquid storage tank.

8. The exhaust gas treatment device according to claim 6, characterized in that: The liquid replenishing assembly also includes a liquid adding tube and a liquid adding valve. One end of the liquid adding tube is connected to the liquid storage tank, and the other end is used to connect to an external liquid source. The liquid adding valve is arranged on the liquid adding tube.

9. The exhaust gas treatment device according to claim 6, characterized in that: The fluid replenishment component also includes a second pH meter, which is disposed in the fluid storage tank.

10. An electrolyte preparation system, characterized in that: The invention comprises the exhaust gas treatment device according to any one of claims 1 to 9.

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