Liquid supplementing device

Abstract

The utility model discloses a liquid supplementing device which comprises a bottom plate, a liquid supplementing barrel, a liquid supplementing pump, a liquid discharging pipeline and a main liquid discharging pipe. The liquid supplementing barrel and the main liquid discharging pipe are both arranged on the bottom plate, a containing cavity used for containing liquid is formed in the liquid supplementing barrel, the liquid supplementing barrel is provided with a top and a bottom which are opposite, an overflow groove is formed in the top, the liquid supplementing pump is arranged in the overflow groove and communicated with the containing cavity, one end of the liquid discharging pipeline is communicated with the bottom of the liquid supplementing barrel, and the other end of the liquid discharging pipeline is communicated with the main liquid discharging pipe. Furthermore, the space on the liquid supplementing barrel can be reasonably utilized, meanwhile, liquid leaked in the working process of the liquid supplementing pump can be collected through the overflow groove, and pollution caused by liquid leakage of the liquid supplementing pump to other equipment is avoided. Meanwhile, the bottom of the liquid supplementing barrel is communicated with the main liquid discharging pipe through the liquid discharging pipeline, so that residual liquid in the liquid supplementing barrel is more easily discharged into the main liquid discharging pipe, and the liquid discharging efficiency and the liquid discharging effect are improved.

Description

Technical Field

[0001] This application belongs to the technical field of fluid replenishment equipment, and particularly relates to a fluid replenishment device. Background Art

[0002] In the production process of solar cells, wet processes are involved, such as: cleaning of battery wafers, wet etching of battery wafers, etc. In the wet process, in order to keep the solution in the liquid supply equipment in a balanced state, a fluid replenishment system is usually set up to replenish the liquid supply equipment in a timely manner. In actual use, the solution in the fluid replenishment system will be continuously replaced according to the liquid supply requirements of the liquid supply equipment.

[0003] In the related art, the fluid replenishment system includes a replenishment bucket, a replenishment pump, and a drain pipe. The drain pipe and the replenishment pump are respectively connected to the replenishment bucket. The solution in the replenishment bucket is pumped into the liquid supply equipment through the replenishment pump, and the remaining solution in the replenishment bucket is discharged through the drain pipe. However, when using the fluid replenishment system in the related art, there is a risk that the leaked liquid from the replenishment pump may contaminate other equipment, and there is also a problem that the liquid in the replenishment bucket cannot be drained completely. Utility Model Content

[0004] This application aims to provide a fluid replenishment device, which can solve the problems that when using the fluid replenishment system in the related art, there is a risk that the leaked liquid from the replenishment pump may contaminate other equipment, and there is also a problem that the liquid in the replenishment bucket cannot be drained completely.

[0005] To solve the above technical problems, this application is implemented as follows:

[0006] An embodiment of this application provides a fluid replenishment device, including: a bottom plate, a replenishment bucket, a replenishment pump, a drain pipeline, and a main drain pipe;

[0007] The replenishment bucket and the main drain pipe are both arranged on the bottom plate. The replenishment bucket is provided with a receiving cavity for containing liquid. The replenishment bucket has opposite top and bottom. The top is provided with an overflow groove. The replenishment pump is arranged in the overflow groove and is communicated with the receiving cavity. One end of the drain pipeline is communicated with the bottom of the replenishment bucket, and the other end is communicated with the main drain pipe.

[0008] Optionally, the drain pipeline includes: a first pipeline and a first switching valve. The first pipeline includes opposite first and second ends. The bottom of the replenishment bucket is provided with a drain hole. The first end is communicated with the drain hole, and the second end is communicated with the main drain pipe. The first switching valve is arranged in the first pipeline.

[0009] Optionally, the drain pipeline further includes: a second pipeline, a second switching valve, and a third switching valve;

[0010] The second switching valve is arranged in the first pipeline and close to the second end. The second pipeline is communicated with the first pipeline, and the connection position between the second pipeline and the first pipeline is located between the first switching valve and the second switching valve. The third switching valve is arranged in the second pipeline.

[0011] Optionally, the liquid replenishing device further includes: an overflow pipeline. An overflow hole is provided on the tank wall of the overflow tank. One end of the overflow pipeline is communicated with the overflow hole, and the other end is communicated with the liquid discharge pipeline.

[0012] Optionally, the liquid replenishing device further includes: a first filter element. A liquid injection port communicated with the accommodating cavity is provided at the bottom of the overflow tank. The first filter element is arranged at the liquid injection port. The first filter element is recessed towards the accommodating cavity from the liquid injection port to form a filter tank. A plurality of filter holes arranged at intervals are provided in the first filter element, and the filter holes communicate the filter tank and the accommodating cavity.

[0013] Optionally, the liquid replenishing device further includes: a liquid replenishing pipeline and a second filter element. A liquid outlet is provided on the side wall of the liquid replenishing barrel close to the bottom. One end of the liquid replenishing pipeline is communicated with the liquid outlet, and the other end is communicated with the liquid inlet end of the liquid replenishing pump. The second filter element is arranged at the liquid outlet.

[0014] Optionally, the liquid replenishing device further includes: a first warning device. The first warning device is arranged on the side wall of the liquid replenishing barrel, and the first warning device is located on the side of the liquid outlet close to the top. The first warning device is used for detecting and warning the liquid level height in the accommodating cavity.

[0015] Optionally, the liquid replenishing device further includes: a second warning device and a controller. The second warning device is arranged on the side wall of the liquid replenishing barrel, and along the direction from the top to the bottom, the second warning device is arranged between the first warning device and the liquid outlet. The controller is electrically connected to the second warning device and the liquid replenishing pump respectively; when the second warning device detects that the liquid level height is lower than a preset height, the controller controls the liquid replenishing pump to stop working.

[0016] Optionally, along the direction from the top to the bottom, the height difference between the second warning device and the liquid outlet is 0-5 mm.

[0017] Optionally, the bottom of the accommodating cavity is a curved surface, and the curved surface protrudes towards the direction away from the top; and / or, a diversion groove is provided at the bottom of the accommodating cavity, and the diversion groove extends from the edge of the bottom to the liquid discharge hole.

[0018] In an embodiment of the present application, by providing an overflow groove at the top of the liquid replenishment bucket and arranging the liquid replenishment pump in the overflow groove, thus, not only can the space on the liquid replenishment bucket be reasonably utilized, but also the overflow groove can be used to collect the liquid leaked during the operation of the liquid replenishment pump, avoiding the pollution of other equipment caused by the liquid leakage of the liquid replenishment pump. At the same time, by connecting the bottom of the liquid replenishment bucket to the main drain pipe through a drain pipeline, the residual liquid in the liquid replenishment bucket can be more easily drained into the main drain pipe, thereby improving the drainage efficiency and drainage effect.

[0019] Additional aspects and advantages of the present application will be given in part in the following description, become apparent in part from the following description, or be understood through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and / or additional aspects and advantages of the present application will become apparent and be readily understood from the description of the embodiments in conjunction with the following drawings, where:

[0021] Figure 1 is a schematic diagram of a liquid replenishment device in the related art;

[0022] Figure 2 is a schematic diagram of a liquid replenishment device from one perspective according to an embodiment of the present application

[0023] Figure 3 is a schematic diagram of a liquid replenishment device from another perspective according to an embodiment of the present application;

[0024] Figure 4 is a partial structural schematic diagram of a liquid replenishment device according to an embodiment of the present application;

[0025] Figure 5 is a schematic diagram of a drain pipeline according to an embodiment of the present application;

[0026] Figure 6 is a perspective view of a liquid replenishment bucket according to an embodiment of the present application;

[0027] Figure 7 is a side view of a liquid replenishment bucket according to an embodiment of the present application;

[0028] Figure 8 is a schematic diagram of a first filter element according to an embodiment of the present application;

[0029] Figure 9 is a schematic diagram of a cover plate according to an embodiment of the present application;

[0030] Figure 10 is a schematic diagram of a second filter element according to an embodiment of the present application;

[0031] Figure 11 is a schematic diagram of a first warning device and a second warning device according to an embodiment of the present application;

[0032] Figure 12 It is a schematic diagram of the connection between a fluid infusion pump and a fluid infusion pipeline according to an embodiment of the present application.

[0033] Reference numerals:

[0034] 10: bottom plate; 11: fluid infusion barrel; 11a: top; 11b: bottom; 111: accommodating cavity; 112: overflow tank; 1121: overflow hole; 113: liquid discharge hole; 114: liquid injection port; 115: liquid outlet; 116: diversion groove; 12: fluid infusion pump; 13: liquid discharge pipeline; 131: first pipeline; 131a: first end; 131b: second end; 132: first switching valve; 133: second pipeline; 134: second switching valve; 135: third switching valve; 14: main liquid discharge pipe; 15: overflow pipeline; 16: first filter element; 161: filter tank; 162: filter hole; 163: support part; 164: filter screen; 17: fluid infusion pipeline; 18: second filter element; 19: first warning device; 20: second warning device; 22: cover plate; 221: cover body; 222: fixing ring; 223: handle. Detailed implementation manners

[0035] The embodiments of the present application will be described in detail below. The examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present application, and should not be construed as a limitation to the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts fall within the scope of protection of the present application.

[0036] The terms "first" and "second" in the description and claims of the present application may explicitly or implicitly include one or more of such features. In the description of the present application, unless otherwise specified, the meaning of "a plurality" is two or more. In addition, "and / or" in the description and claims means at least one of the connected objects, and the character " / " generally means an "or" relationship between the associated objects before and after.

[0037] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on

[0038] The orientation or positional relationship shown in the drawings is only for convenience in 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 operate in a specific orientation, and thus should not be construed as a limitation on the present application.

[0039] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0040] Before explaining the liquid replenishing device provided in the embodiments of the present application, the application scenarios of the liquid replenishing device will be specifically described first:

[0041] In the production process of solar cells, wet processes are involved, such as: cleaning of solar cell wafers, wet etching of solar cell wafers, etc. In the wet process, in order to keep the solution in the liquid supply device in a balanced state, a liquid replenishing device is usually required to replenish the liquid to the liquid supply device in a timely manner.

[0042] In the related art, as Figure 1 shown, Figure 1 The schematic diagram of the liquid replenishing device in the related art is shown, including a bottom plate 10, a main drain pipe 14, a liquid replenishing pump 12, a liquid replenishing bucket 11, and a liquid delivery pipeline. The liquid replenishing bucket 11 is installed on the bottom plate 10. The liquid delivery pipeline has one inlet and two outlets. The inlet of the liquid delivery pipeline is communicated with the side wall of the liquid replenishing bucket 11. One of the outlets of the liquid delivery pipeline is communicated with the liquid inlet end of the liquid replenishing pump 12. The liquid outlet end of the liquid replenishing pump 12 is communicated with the liquid supply device, so as to pump the liquid in the liquid replenishing bucket 11 into the liquid supply device by using the liquid replenishing pump 12. The other outlet of the liquid delivery pipeline is communicated with the main drain pipe 14, and a drain manual valve is installed near the other outlet of the liquid delivery pipeline, so that when it is necessary to drain the residual liquid in the liquid replenishing bucket 11, the drain manual valve is opened to communicate the liquid replenishing bucket 11 with the main drain pipe 14 to realize the drainage operation.

[0043] However, for the liquid replenishing device using the related technology, since the main drain pipe 14 is connected to the side of the liquid replenishing bucket 11 through the liquid delivery pipeline, and the connection position is relatively high, there are problems such as slow drainage speed and incomplete drainage of the residual liquid in the liquid replenishing bucket 11, which may cause cross-contamination. At the same time, setting the liquid replenishing pump 12 on the bottom plate 10 not only occupies space, but also there will be a liquid leakage phenomenon during the operation of the liquid replenishing pump 12, and the leaked liquid will pollute the surrounding environment and easily cause safety accidents.

[0044] To this end, the embodiments of the present application provide a fluid replenishment device. The following will combine the accompanying drawings to describe the fluid replenishment device provided by the embodiments of the present application in detail through specific embodiments and their application scenarios.

[0045] As Figures 2 to 6 shown, the fluid replenishment device according to some embodiments of the present application includes: a bottom plate 10, a fluid replenishment barrel 11, a fluid replenishment pump 12, a drain pipe 13, and a main drain pipe 14; the fluid replenishment barrel 11 and the main drain pipe 14 are both arranged on the bottom plate 10. An accommodation cavity 111 for containing liquid is provided in the fluid replenishment barrel 11. The fluid replenishment barrel 11 has opposite top 11a and bottom 11b. An overflow groove 112 is provided at the top 11a. The fluid replenishment pump 12 is arranged in the overflow groove 112 and communicated with the accommodation cavity 111. One end of the drain pipe 13 is communicated with the bottom 11b of the fluid replenishment barrel 11, and the other end is communicated with the main drain pipe 14.

[0046] In the embodiments of the present application, by providing an overflow groove 112 at the top 11a of the fluid replenishment barrel 11 and arranging the fluid replenishment pump 12 in the overflow groove 112, thus, not only can the space on the fluid replenishment barrel 11 be reasonably utilized, but also the overflow groove 112 can be used to collect the liquid leaked during the operation of the fluid replenishment pump 12, avoiding the leakage of the fluid replenishment pump 12 from contaminating other equipment. At the same time, by connecting the bottom 11b of the fluid replenishment barrel 11 to the main drain pipe 14 through the drain pipe 13, the residual liquid in the fluid replenishment barrel 11 can be more easily drained into the main drain pipe 14, thereby improving the drainage efficiency and drainage effect.

[0047] Specifically, the fluid replenishment barrel 11 includes opposite top 11a and bottom 11b. An installation bracket is provided at the bottom 11b of the fluid replenishment barrel 11. The fluid replenishment barrel 11 is fixed on the bottom plate 10 through the installation bracket. There is a certain gap between the bottom 11b of the fluid replenishment barrel 11 and the bottom plate 10. A drain hole 113 is provided at the bottom 11b of the fluid replenishment barrel 11 to connect the drain pipe 13 with the drain hole 113, and the other end of the drain pipe 13 is connected to the main drain pipe 14 provided on the bottom plate 10.

[0048] Furthermore, after the fluid replenishment operation of the fluid replenishment device is completed, the residual liquid in the fluid replenishment barrel 11 can be drained into the main drain pipe 14 through the drain pipe 13, realizing the drainage operation of the fluid replenishment barrel 11 so as to replace the liquid in the fluid replenishment barrel 11. And because the drain pipe 13 is connected to the bottom 11b of the fluid replenishment barrel 11, the liquid in the fluid replenishment barrel 11 can be drained more cleanly and the drainage speed is faster.

[0049] At the same time, an overflow groove 112 is provided at the top 11a of the fluid replenishment pump 12, and the fluid replenishment pump 12 is installed in the overflow groove 112 to communicate the fluid replenishment pump 12 with the accommodation cavity 111 in the fluid replenishment barrel 11. Then, the fluid replenishment pump 12 can be used to pump the liquid in the accommodation cavity 111 to the target device to realize the fluid replenishment of the target device.

[0050] It can be understood that during the operation of the liquid replenishing pump 12, a liquid leakage phenomenon may occur. For example,

[0051] When the pneumatic diaphragm pump is selected as the liquid replenishing pump 12, the pneumatic diaphragm pump uses compressed air as the power to achieve the transportation of liquid. During the operation of the pneumatic diaphragm pump, it will vibrate continuously, and it is easy to have a liquid leakage phenomenon. In this application, an overflow groove 112 is provided at the top 11a of the liquid replenishing pump 12, and the liquid replenishing pump 12 is located in the overflow groove 112. The overflow groove 112 can be used to limit the flow of the liquid leaked by the liquid replenishing pump 12, avoid polluting other equipment caused by liquid leakage, and improve safety.

[0052] Of course, other types of pumps can also be selected for the liquid replenishing pump 12, and those skilled in the art can flexibly select according to actual needs. The embodiments of this application do not make limitations here.

[0053] In some embodiments, the liquid replenishing bucket 11 can be made of a material that can resist the liquid it contains. For example, polypropylene material can be selected. The material of the bottom plate 10 and the liquid replenishing bucket 11 can be made of the same material or different materials. The specific material can be flexibly set according to actual needs and is not limited here.

[0054] Optionally, as Figure 5 shown, the liquid discharge pipeline 13 includes: a first pipeline 131 and a first switching valve 132. The first pipeline 131 includes opposite first end 131a and second end 131b. A liquid discharge hole 113 is provided at the bottom 11b of the liquid replenishing bucket 11. The first end 131a is communicated with the liquid discharge hole 113, the second end 131b is communicated with the main liquid discharge pipe 14, and the first switching valve 132 is arranged in the first pipeline 131.

[0055] In the embodiments of this application, the liquid discharge hole 113 at the bottom 11b of the liquid replenishing bucket 11 can be communicated with the main liquid discharge pipe 14 through the first pipeline 131, and the first switching valve 132 is arranged in the first pipeline 131, so as to control the conduction or disconnection of the first pipeline 131 by using the first switching valve 132. Furthermore, the residual liquid in the liquid replenishing bucket 11 can be discharged to the main liquid discharge pipe 14 through the first pipeline 131.

[0056] Optionally, as Figure 5 shown, the liquid discharge pipeline 13 further includes: a second pipeline 133, a second switching valve 134 and a third switching valve 135; the second switching valve 134 is arranged in the first pipeline 131 and close to the second end 131b. The second pipeline 133 is communicated with the first pipeline 131, and the connection position of the second pipeline 133 and the first pipeline 131 is between the first switching valve 132 and the second switching valve 134. The third switching valve 135 is arranged in the second pipeline 133.

[0057] In the embodiment of the present application, a second switching valve 134 is arranged at a position of the first pipeline 131 close to the second end 131b, and a second pipeline 133 is connected between the first switching valve 132 and the second switching valve 134, and a third switching valve 135 is arranged in the second pipeline 133. In this way, the residual liquid in the liquid replenishing bucket

[0058] 11 can be discharged into the main liquid discharge pipe 14 as needed, and the liquid in the liquid replenishing bucket 11 can also be recovered through the second pipeline 133, improving the recovery utilization rate of the liquid.

[0059] Specifically, a first switching valve 132 can be arranged close to the first end 131a of the first pipeline 131, a second switching valve 134 can be arranged close to the second end 131b, the second pipeline 133 is connected to a position in the first pipeline 131 between the first switching valve 132 and the second switching valve 134, one end of the second pipeline 133 is communicated with the first pipeline 131, and the other end can be used to connect to a recovery device.

[0060] Furthermore, after the liquid replenishing device completes the liquid replenishing operation, the liquid replenishing pump 12 is stopped, the first switching valve 132 and the third switching valve 135 are opened, and the second switching valve 134 is closed. In this way, the residual liquid in the liquid replenishing bucket 11 can flow into the recovery device through the first pipeline 131 and the second pipeline 133, realizing the recovery and utilization of the residual liquid.

[0061] Correspondingly, if the first switching valve 132 and the second switching valve 134 are opened and the third switching valve 135 is closed, the residual liquid in the liquid replenishing bucket 11 can flow into the main liquid discharge pipe 14 through the first pipeline 131, realizing the discharge of the residual liquid in the liquid replenishing bucket 11.

[0062] Among them, the first switching valve 132, the second switching valve 134 and the third switching valve 135 can be selected from switching valves such as manual control valves, pneumatic control valves or electric control valves. Of course, the specific types of the first switching valve 132, the second switching valve 134 and the third switching valve 135 can be flexibly set according to actual needs, and the embodiments of the present application do not make limitations here.

[0063] Optionally, as Figure 3 and Figure 4 shown, the liquid replenishing device further includes: an overflow pipeline 15, an overflow hole 1121 is arranged on the tank wall of the overflow tank 112, one end of the overflow pipeline 15 is communicated with the overflow hole 1121, and the other end is communicated with the liquid discharge pipeline 13.

[0064] In the embodiment of the present application, by providing an overflow hole 1121 on the tank wall of the overflow tank 112 and connecting the overflow hole 1121 to the liquid discharge pipeline 13 through the overflow pipeline 15, further, the liquid collected in the overflow tank 112 can flow into the main liquid discharge pipe 14 through the overflow pipeline 15 and the liquid discharge pipeline 13, realizing the smooth discharge of the liquid in the overflow tank 112.

[0065] Specifically, as Figure 5 shown, the other end of the overflow pipeline 15 can be connected to the first pipeline 131, and the connection position of the overflow pipeline 15 and the first pipeline 131 is located between the first switch valve 132 and the second switch valve 134. Further, in practical applications, the first switch valve 132 and the third switch valve 135

[0066] can be set as normally closed valves, and the second switch valve 134 can be set as a normally open valve, so that during the liquid supplement operation, the liquid collected in the overflow tank 112 can be timely discharged into the main liquid discharge pipe 14, avoiding the liquid in the overflow tank 112 from polluting the surrounding environment.

[0067] Optionally, as Figure 6 and Figure 8 shown, the liquid supplement device further includes: a first filter element 16. A liquid injection port 114 communicating with the accommodation cavity 111 is provided at the bottom of the overflow tank 112 (as Figure 4 shown), the first filter element 16 is arranged at the liquid injection port 114, the first filter element 16 is recessed towards the accommodation cavity 111 from the liquid injection port 114 to form a filter tank 161, and a plurality of filter holes 162 arranged at intervals are provided in the first filter element 16, and the filter holes 162 communicate the filter tank 161 and the accommodation cavity 111.

[0068] In the embodiment of the present application, by providing the liquid injection port 114 at the top 11a of the liquid supplement bucket 11, the liquid injection port 114 is located at the bottom of the overflow tank 112, so that when injecting liquid into the accommodation cavity 111 from the liquid injection port 114, the overflowed liquid can be collected by the overflow tank 112, avoiding polluting the surrounding environment. At the same time, a first filter element 16 is provided at the liquid injection port 114 to filter the injected liquid and prevent impurities from entering the accommodation cavity 111.

[0069] Specifically, a convex portion can be provided around the periphery of the liquid injection port 114 to block the liquid injection port 114, avoiding the liquid in the overflow tank from flowing into the accommodation cavity 111 through the liquid injection port 114.

[0070] Furthermore, the first filter element 16 includes a support portion 163 and a filter screen 164. A filter groove 161 is formed in the filter screen 164. The groove wall of the filter groove 161 is provided with a plurality of filter holes 162. During installation, the support portion 163 is engaged with the protrusions around the liquid injection port 114, and the first filter element 16 is installed and fixed accordingly. The filter screen 164 extends into the accommodating cavity 111. During liquid injection, the liquid is injected into the filter groove 161, and the filter screen 164 is used to filter the liquid.

[0071] The support portion 163 and the filter screen 164 may be an integrated structure or a split structure.

[0072] In some embodiments, Figure 6 and Figure 9 As shown, a cover plate 22 may also be provided at the liquid injection port 114 to form a capping effect on the liquid injection port 114. Specifically, the cover plate 22 includes a cover body 221, a fixing ring 222 and a handle 223. The cover body 221 is used to cap the liquid injection port 114. The fixing ring 222 is provided on a side of the cover body 221 facing the first filter element 16. The fixing ring 222 is engaged with the support portion 163 of the first filter element 16 so as to fix the cover plate 22 at the liquid injection port 114. The handle 223 is provided on a side of the cover body 221 away from the fixing ring 222 to facilitate operation.

[0073] Alternatively, if Figure 4 , Figure 10 and Figure 12 As shown, the fluid replenishment device also includes: a fluid replenishment pipe 17 and a second filter element 18. A liquid outlet 115 is provided on the side wall of the fluid replenishment barrel 11 near the bottom 11b. One end of the fluid replenishment pipe 17 is connected to the liquid outlet 115, and the other end is connected to the liquid inlet end of the fluid replenishment pump 12. The second filter element 18 is provided at the liquid outlet 115.

[0074] In the embodiment of the present application, a liquid outlet 115 is provided on the side wall of the liquid replenishment barrel 11, the liquid outlet 115 is close to the bottom 11b of the liquid replenishment barrel 11, and the liquid outlet 115 is connected to the liquid inlet end of the liquid replenishment pump 12 through the liquid replenishment pipe 17, so that the liquid in the liquid replenishment barrel 11 is pumped to the target device by the liquid replenishment pump 12. Furthermore, a second filter 18 is provided at the liquid outlet 115 of the liquid replenishment pipe 17 to filter the liquid entering the liquid replenishment pipe 17 to prevent impurities from entering the liquid replenishment pump 12 and causing damage to the liquid replenishment pump 12.

[0075] Among them, Figure 10 As shown, the second filter element 18 can be a conical filter screen, which protrudes from the liquid outlet 115 toward the infusion pipe 17. A number of filter holes are provided in the conical filter screen. The use of the conical filter screen can not only filter the liquid flowing into the infusion pipe 17, but also the conical structure of the conical filter screen can play a certain guiding role, thereby reducing the resistance to liquid flow.

[0076] Optionally, as shown in Figure 6 and Figure 7 shown, the liquid replenishing device further includes: a first warning device 19, the first warning device 19 is disposed on the side wall of the liquid replenishing barrel 11, and the first warning device 19 is located on one side of the liquid outlet 115 close to the top 11a. The first warning device 19 is used to detect and give a warning about the liquid level height in the accommodating cavity 111.

[0077] In the embodiment of the present application, by disposing the first warning device 19 on the side wall of the liquid replenishing barrel 11 and making the position of the first warning device 19 higher than the liquid outlet 115, so that when the liquid level in the liquid replenishing barrel 11 reaches the corresponding position of the first warning device 19, the first warning device 19 gives a warning to prompt the operator to replenish the liquid in time.

[0078] Optionally, as shown in Figure 6 and Figure 7 shown, the liquid replenishing device further includes: a second warning device 20 and a controller (not shown in the figure). The second warning device 20 is disposed on the side wall of the liquid replenishing barrel 11, and along the direction from the top 11a to the bottom 11b, the second warning device 20 is disposed between the first warning device 19 and the liquid outlet 115. The controller is electrically connected to the second warning device 20 and the liquid replenishing pump 12 respectively; in the case where the second warning device 20 detects that the liquid level height is lower than a preset height, the controller controls the liquid replenishing pump 12 to stop working.

[0079] In the embodiment of the present application, by disposing the second

[0080] warning device 20 between the first warning device 19 and the liquid outlet 115, and connecting the second warning device 20 to the controller, and the controller is connected to the liquid replenishing pump 12. Furthermore, when the liquid level in the liquid replenishing barrel 11 reaches the corresponding position of the second warning device 20, the second warning device 20 emits a warning signal to indicate that the liquid level in the liquid replenishing barrel 11 is too low. At the same time, the controller can receive the warning signal and control the liquid replenishing pump 12 to stop, thereby avoiding damage to the liquid replenishing pump 12 caused by the liquid replenishing pump 12 running idly.

[0081] In some embodiments, as shown in Figure 11 shown, the first warning device 19 and the second warning device 20 can be selected as float type water level alarm devices. The float type water level alarm device includes a mounting part, a first magnet, a second magnet and a float. The mounting part is provided with a threaded structure for connecting and fixing with the side wall of the liquid replenishing barrel 11. The first magnet is connected to the mounting part. The second magnet is movably connected to the first magnet. The float is connected to the second magnet. The float is of a hollow structure. When the liquid in the liquid replenishing barrel 11 is sufficient, the float floats under the action of the buoyancy of the liquid. When the liquid level in the liquid replenishing barrel 11 is lower than the corresponding position of the float type water level alarm device, the float sags under the action of gravity, and the first magnet and the second magnet interact with each other and output a warning signal.

[0082] Optionally, as Figure 7 shown, along the direction from the top 11a to the bottom 11b, the height difference ΔH between the second warning device 20 and the liquid outlet 115 is 0 - 5 mm.

[0083] In the embodiment of the present application, by setting the range of the height difference ΔH between the second warning device 20 and the liquid outlet 115, the controller can accurately control the operation of the liquid supplementing pump 12 according to the warning signal of the second warning device 20, avoiding damage caused by the idling of the liquid supplementing pump 12.

[0084] Among them, if the position of the second warning device 20 is lower than the liquid outlet 115, there will be a problem of untimely warning, resulting in easy damage to the liquid supplementing pump 12 due to idling; if the position of the second warning device 20 is too high, there will be an early warning, resulting in the liquid in the liquid supplementing barrel 11 not being fully utilized.

[0085] Exemplarily, the height difference ΔH between the second warning device 20 and the liquid outlet 115 can be set to any value such as 0 mm, 1 mm, 2 mm, 3 mm, 4 mm, 5 mm or the range between any two values.

[0086] It can be understood that the bottom plate 10 is provided with an installation plane, the liquid supplementing barrel 11 and the main liquid discharge pipe 14 are both arranged on the installation plane. Along the direction from the top 11a to the bottom 11b, the height from the center of the liquid outlet 115 to the installation plane is H1, and the height from the center of the second warning device 20 to the installation plane is H2. The height difference ΔH between the second warning device 20 and the liquid outlet 115 = H2 - H1.

[0087] In a specific application, by simultaneously arranging the first warning device 19 and the second warning device 20 on the side wall of the liquid supplementing barrel 11, and the first warning device 19 is higher than the second warning device 20. When the liquid level in the liquid supplementing barrel 11 drops to the corresponding position of the first warning device 19, the first warning device 19 gives a warning to prompt the operator to supplement the liquid in time. If the liquid is not supplemented in time and the liquid level in the liquid supplementing barrel 11 continues to drop to the corresponding position of the second warning device 20, the second warning device 20 gives a warning and sends a signal to the controller, and the controller controls the liquid supplementing pump 12 to stop working. In this way, through the cooperation of the first warning device 19 and the second warning device 20, the warning effect can be improved.

[0088] Optionally, as Figure 6 shown, the bottom of the accommodating cavity 111 is a curved surface, and the curved surface protrudes in the direction away from the top 11a.

[0089] In the embodiment of the present application, by setting the bottom of the accommodation cavity 111 as a curved surface and making the curved surface protrude in a direction away from the top 11a of the liquid replenishing barrel 11, that is, the bottom of the accommodation cavity 111 is in a downwardly concave conical structure, which can play a role in converging the liquid, so that when draining the liquid, the remaining liquid can be drained more cleanly.

[0090] Among them, the conical structure formed by the bottom of the accommodation cavity 111 is recessed from the four peripheral edges of the bottom towards the center, and then the drain hole 113 is arranged at the center position of the bottom, so as to use the conical structure of the bottom to converge the liquid towards the drain hole 113.

[0091] Optionally, as Figure 6 shown, a diversion groove 116 is provided at the bottom of the accommodation cavity 111, and the diversion groove 116 extends from the edge of the bottom towards the drain hole 113;

[0092] In the embodiment of the present application, by providing a diversion groove 116 at the bottom of the accommodation cavity 111 and making the diversion groove 116 extend from the edge of the bottom towards the drain hole 113, the diversion groove 116 is used to divert the liquid to the drain hole 113, facilitating the drainage of the remaining liquid.

[0093] Among them, a plurality of cross-distributed diversion grooves 116 can be provided at the bottom of the accommodation cavity 111, the drain hole 113 is located at the intersection of the plurality of diversion grooves 116, and the plurality of diversion grooves 116 are respectively communicated with the drain hole 113, so as to use the plurality of diversion grooves 116 to direct the liquid to the drain hole 113 during the drainage operation, improving the drainage efficiency and drainage effect.

[0094] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0095] 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 principles and purposes of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A fluid replenishment device, characterized in that, Comprising: A bottom plate, a liquid replenishing barrel, a liquid replenishing pump, a liquid discharging pipeline and a main liquid discharging pipe; The liquid replenishing barrel and the main liquid discharging pipe are both arranged on the bottom plate. The liquid replenishing barrel is provided with a containing cavity for containing liquid. The liquid replenishing barrel has opposite top and bottom. The top is provided with an overflow groove. The liquid replenishing pump is arranged in the overflow groove and communicated with the containing cavity. One end of the liquid discharging pipeline is communicated with the bottom of the liquid replenishing barrel, and the other end is communicated with the main liquid discharging pipe.

2. The fluid infusion device according to claim 1, wherein The liquid discharging pipeline includes: a first pipeline and a first switching valve. The first pipeline includes opposite first and second ends. The bottom of the liquid replenishing barrel is provided with a liquid discharging hole. The first end is communicated with the liquid discharging hole, and the second end is communicated with the main liquid discharging pipe. The first switching valve is arranged in the first pipeline.

3. The fluid infusion device according to claim 2, wherein, The liquid discharging pipeline further includes: a second pipeline, a second switching valve and a third switching valve; The second switching valve is arranged in the first pipeline and close to the second end. The second pipeline is communicated with the first pipeline, and the connection position of the second pipeline and the first pipeline is between the first switching valve and the second switching valve. The third switching valve is arranged in the second pipeline.

4. The fluid infusion device according to claim 1, wherein The liquid replenishing device further includes: an overflow pipeline. The wall of the overflow groove is provided with an overflow hole. One end of the overflow pipeline is communicated with the overflow hole, and the other end is communicated with the liquid discharging pipeline.

5. The fluid infusion device according to claim 4, characterized in that, The liquid replenishing device further includes: a first filtering member. The bottom of the overflow groove is provided with a liquid injection port communicated with the containing cavity. The first filtering member is arranged at the liquid injection port. The first filtering member is recessed from the liquid injection port towards the containing cavity to form a filtering groove. A plurality of filtering holes are arranged in the first filtering member, and the filtering holes communicate the filtering groove and the containing cavity.

6. The fluid infusion device according to claim 1, wherein The liquid replenishing device further includes: a liquid replenishing pipeline and a second filtering member. The side wall of the liquid replenishing barrel is provided with a liquid outlet near the bottom. One end of the liquid replenishing pipeline is communicated with the liquid outlet, and the other end is communicated with the liquid inlet end of the liquid replenishing pump. The second filtering member is arranged at the liquid outlet.

7. The fluid infusion device according to claim 6, wherein The liquid replenishing device further includes: a first warning device. The first warning device is arranged on the side wall of the liquid replenishing barrel, and the first warning device is located on the side of the liquid outlet close to the top. The first warning device is used for detecting and warning the liquid level height in the containing cavity.

8. The fluid infusion device according to claim 7, characterized in that The liquid replenishing device further includes: a second warning device and a controller. The second warning device is arranged on the side wall of the liquid replenishing barrel, and along the direction from the top to the bottom, the second warning device is arranged between the first warning device and the liquid outlet. The controller is electrically connected to the second warning device and the liquid replenishing pump respectively; when the second warning device detects that the liquid level height is lower than a preset height, the controller controls the liquid replenishing pump to stop working.

9. The fluid replenishing device according to claim 8, characterized in that, Along the direction from the top to the bottom, the height difference between the second warning device and the liquid outlet is 0-5 mm.

10. The fluid infusion device according to claim 2, characterized in that, The bottom of the containing cavity is a curved surface, and the curved surface protrudes towards the direction away from the top; and / or, the bottom of the containing cavity is provided with a diversion groove, and the diversion groove extends from the edge of the bottom towards the liquid discharging hole.

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