Liquid storage tank cleaning system

Abstract

The utility model relates to the technical field of tank cleaning devices, and discloses a liquid storage tank cleaning system which comprises a cleaning liquid pumping device, a first storage tank, a second storage tank, a second cleaning pipe and a third cleaning pipe. The first storage tank comprises a first tank body, a feeding pipe and a first discharging pipe. The second storage tank comprises a second tank body, a first cleaning pipe, a second discharging pipe and a third discharging pipe, the two ends of the first cleaning pipe are communicated with the cleaning liquid pumping device and the second tank body respectively, the second discharging pipe is communicated with the second tank body and the first discharging pipe, and the third discharging pipe is communicated with the second discharging pipe and the next-stage storage tank. And the third cleaning pipe is communicated with the second discharging pipe and the cleaning liquid pumping device. Therefore, a loop is formed among the cleaning liquid pumping device, the first storage tank and the second storage tank, cleaning liquid can flow between the first storage tank and the second storage tank in two directions, two-way washing can be carried out, cleaning dead corners are reduced, and the cleaning effect is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of tank cleaning devices, and in particular to a liquid storage tank cleaning system. Background Technology

[0002] In the brewing of soy sauce, sauces, and vinegar, fluid products are typically stored in tanks, and multiple tanks can be connected via pipelines. When fluid products are drained from the tanks, some fluid remains in the tanks, pipelines, and valves, requiring regular tank cleaning. In related technologies, cleaning multi-stage tanks usually involves connecting the tanks in series with cleaning pipes. The cleaning process proceeds sequentially, but the cleaning fluid has a single destination, resulting in poor cleaning effectiveness and potential cleaning dead zones, which can negatively impact material quality. Utility Model Content

[0003] The technical problem to be solved by this utility model is that in related technologies, the cleaning effect of multi-stage storage tanks is not good, and there are often cleaning dead corners, which in turn affect the quality of materials.

[0004] To solve the above-mentioned technical problems, this utility model provides a liquid storage tank cleaning system, which includes:

[0005] A cleaning fluid pumping device, wherein the cleaning fluid pumping device is used to provide cleaning fluid;

[0006] The first storage tank includes a first tank body and a feed pipe and a first discharge pipe, both connected and communicating with the first tank body. One end of the feed pipe is connected to the feed inlet of the first tank body, and the other end of the feed pipe is used to communicate with a feeding device. One end of the first discharge pipe is connected to the discharge outlet of the first tank body, and a first conveying valve is provided on the first discharge pipe.

[0007] The second storage tank includes a second tank body, a first cleaning pipe, a second discharge pipe, and a third discharge pipe. The two ends of the first cleaning pipe are respectively connected to a cleaning fluid pumping device and the second tank body. The second discharge pipe is equipped with a second discharge valve.

[0008] The two ends of the second discharge pipe are respectively connected to the discharge port of the second tank and the other end of the first discharge pipe.

[0009] One end of the third discharge pipe is connected to the second discharge pipe and is located between the second discharge valve and the first discharge pipe, while the other end is used to connect to the next-level storage tank.

[0010] The second cleaning pipe has one end connected to the third discharge pipe and the other end connected to the feed inlet of the first tank. The second cleaning pipe is equipped with a first cleaning valve.

[0011] The third cleaning pipe has one end connected to the second discharge pipe and the other end connected to the cleaning liquid pumping device. The third cleaning pipe is equipped with a second cleaning valve.

[0012] According to one embodiment of the present invention, a first discharge valve is provided on the first discharge pipe, and the first discharge valve is located between the discharge port of the second tank and the first conveying valve.

[0013] The third discharge pipe is equipped with a third discharge valve, which is located upstream of the second cleaning pipe.

[0014] According to one embodiment of the present invention, the liquid storage tank cleaning system further includes a return pipe, one end of which is connected to the first discharge pipe and located downstream of the first discharge valve.

[0015] The other end is connected to the third discharge pipe and is located downstream of the second cleaning pipe.

[0016] According to one embodiment of the present invention, the reflux pipe is provided with a first reflux valve and a second reflux valve. The first reflux valve is located at the connection between the reflux pipe and the first discharge pipe, and the second reflux valve is located at the connection between the reflux pipe and the third discharge pipe.

[0017] According to one embodiment of the present invention, a protective valve is provided on the third discharge pipe, and the protective valve is located between the second cleaning pipe and the return pipe.

[0018] According to one embodiment of the present invention, the second cleaning pipe has a connecting branch pipe, the connecting branch pipe being connected to the feed pipe, and a third cleaning valve being provided on the connecting branch pipe.

[0019] According to one embodiment of the present invention, a fourth discharge valve is provided on the third discharge pipe, and the fourth discharge valve is located between the third discharge valve and the second cleaning pipe.

[0020] The liquid storage tank cleaning system also includes a fourth cleaning pipe. One end of the fourth cleaning pipe is connected to the third discharge pipe and is located between the third discharge valve and the fourth discharge valve. The other end is connected to the cleaning fluid pumping device. The fourth cleaning pipe is equipped with an inlet valve.

[0021] According to one embodiment of the present invention, a fifth discharge valve is provided on the third discharge pipe, and the fifth discharge valve is located downstream of the third discharge valve.

[0022] The liquid storage tank cleaning system also includes a first pulse tube, one end of which is connected to the third discharge tube and located between the third discharge valve and the fifth discharge valve, and the other end is connected to the cleaning fluid pumping device. A first pulse valve is provided on the first pulse tube.

[0023] According to one embodiment of the present invention, a second conveying valve is provided on the first discharge pipe, and the second conveying valve is located downstream of the first conveying valve.

[0024] The liquid storage tank cleaning system also includes a second pulse tube. One end of the second pulse tube is connected to the first discharge pipe and is located between the first conveying valve and the second conveying valve. The other end is connected to the cleaning fluid pumping device. A second pulse valve is provided on the second pulse tube.

[0025] According to one embodiment of the present invention, the third cleaning pipe is provided with a filter, which is closer to the cleaning fluid pumping device than the second cleaning valve.

[0026] According to one embodiment of the present invention, a first flow meter is provided on the feed pipe, and a second flow meter is provided on the third discharge pipe, wherein the second flow meter is located downstream of the third discharge valve.

[0027] This utility model provides a liquid storage tank cleaning system. A cleaning fluid pumping device is connected to a second storage tank, and a loop is formed between the cleaning fluid pumping device, the first storage tank, and the second storage tank through a second cleaning pipe and a third cleaning pipe. This allows the cleaning fluid to flow bidirectionally between the first and second storage tanks, thereby rinsing the first and second discharge pipes in both directions, reducing cleaning dead zones, and improving the cleaning effect. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the liquid storage tank cleaning system provided in an embodiment of the present invention.

[0029] Figure 2 This is one of the schematic diagrams of the flow path of the cleaning fluid during the cleaning process of the liquid storage tank cleaning system provided in this embodiment of the utility model.

[0030] Figure 3 This is the second schematic diagram of the flow path of the cleaning fluid during the cleaning process of the liquid storage tank cleaning system provided in this embodiment of the utility model.

[0031] Figure 4 This is the third schematic diagram of the flow path of the cleaning fluid during the cleaning process of the liquid storage tank cleaning system provided in this embodiment of the utility model.

[0032] Figure 5This is the fourth schematic diagram of the flow path of the cleaning fluid during the cleaning process of the liquid storage tank cleaning system provided in this embodiment of the utility model.

[0033] Figure 6 This is the fifth schematic diagram of the flow path of the cleaning fluid during the cleaning process of the liquid storage tank cleaning system provided in this embodiment of the utility model.

[0034] Figure 7 This is the sixth schematic diagram of the flow path of the cleaning fluid during the cleaning process of the liquid storage tank cleaning system provided in this embodiment of the utility model.

[0035] Figure label:

[0036] 100. Cleaning fluid pumping device;

[0037] 110. First storage tank; 111. First tank body; 112. Inlet pipe; 1121. First flow meter; 1122. Inlet valve; 113. First outlet pipe; 1131. First outlet valve; 1132. First water pump;

[0038] 120. Second storage tank; 121. Second tank body; 122. First cleaning pipe; 123. Second discharge pipe; 1231. Second discharge valve; 124. Third discharge pipe; 1241. Third discharge valve; 1242. Fourth discharge valve; 1243. Fifth discharge valve; 1244. Protective valve; 1245. Second flow meter; 1246. Second water pump;

[0039] 131. First conveying valve; 132. Second conveying valve;

[0040] 140. Second cleaning pipe; 141. First cleaning valve; 142. Connecting branch pipe; 143. Third cleaning valve;

[0041] 150. Third cleaning pipe; 151. Second cleaning valve; 152. Filter; 153. Check valve; 154. Third water pump;

[0042] 160. Return pipe; 161. First return valve; 162. Second return valve;

[0043] 170. Fourth cleaning tube; 171. Liquid inlet valve;

[0044] 180. First pulse tube; 181. First pulse valve; 182. Second pulse tube; 183. Second pulse valve. Detailed Implementation

[0045] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0046] In the description of the embodiments of this utility model, the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0047] In the description of the embodiments of this utility model, unless otherwise expressly specified and limited, the terms "connected" and "linked" should be interpreted broadly. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this utility model according to the specific circumstances.

[0048] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0049] like Figure 1 As shown in the figure, a liquid storage tank cleaning system according to an embodiment of the present invention includes: a cleaning fluid pumping device 100, a first storage tank 110, a second storage tank 120, a second cleaning pipe 140, and a third cleaning pipe 150.

[0050] Specifically, the cleaning fluid pumping device 100 is used to provide cleaning fluid, and the cleaning fluid pumping device 100 can provide one or more cleaning fluids. The first storage tank 110 includes a first tank body 111 and an inlet pipe 112 and a first outlet pipe 113, both connected and communicating with the first tank body 111. The first tank body 111 is used to store materials. One end of the inlet pipe 112 is connected to the inlet of the first tank body 111, and the other end of the inlet pipe 112 is used to communicate with a feeding device. An inlet valve 1122 may be provided between the inlet pipe 112 and the feeding device, and the material is transported into the first tank body 111 through the inlet pipe 112. One end of the first outlet pipe 113 is connected to the outlet of the first tank body 111, and a first conveying valve 131 is provided on the first outlet pipe 113.

[0051] The second storage tank 120 includes a second tank body 121, a first cleaning pipe 122, a second discharge pipe 123, and a third discharge pipe 124. The second tank body 121 is used to store materials. The two ends of the first cleaning pipe 122 are respectively connected to the cleaning fluid pumping device 100 and the second tank body 121. The second discharge pipe 123 is equipped with a second discharge valve 1231. The two ends of the second discharge pipe 123 are respectively connected to the discharge port of the second tank body 121 and the other end of the first discharge pipe 113. The first discharge valve 131 can cut off the fluid transport between the second discharge pipe 123 and the first discharge pipe 113.

[0052] One end of the third discharge pipe 124 is connected to the second discharge pipe 123 and is located between the second discharge valve 1231 and the first discharge pipe 113. The other end is used to connect to the next-level storage tank. In some embodiments, a first water pump 1132 is connected to the first discharge pipe 113 to pump the fluid in the first tank 111 to the second tank 121, and a second water pump 1246 is connected to the third discharge pipe 124 to pump the fluid in the second tank 121 to the next-level storage tank.

[0053] like Figure 1 As indicated by the middle arrow, the flow path of the material within the liquid storage tank cleaning system is as follows: the material in the feeding device is conveyed to the first tank 111 through the inlet pipe 112, and then conveyed to the second tank 121 through the first outlet pipe 113 and the second outlet pipe 123. The material in the second tank 121 is output from the second outlet pipe 123 and conveyed to the next-stage storage tank through the third outlet pipe 124. It is understood that the upstream and downstream terms mentioned in this application refer to the direction of material flow.

[0054] One end of the second cleaning pipe 140 is connected to the third discharge pipe 124, and the other end is connected to the inlet of the first tank 111. A first cleaning valve 141 is provided on the second cleaning pipe 140. One end of the third cleaning pipe 150 is connected to the second discharge pipe 123, and the other end is connected to the cleaning fluid pumping device 100. A second cleaning valve 151 is provided on the third cleaning pipe 150. It is understood that during material transport, both the first cleaning valve 141 and the second cleaning valve 151 are closed to prevent material from entering the second cleaning pipe 140 and the third cleaning pipe 150. A third water pump 154 ​​may be connected to the third cleaning pipe 150 to drive the fluid in the third cleaning pipe 150 to flow to the cleaning fluid pumping device 100.

[0055] In some embodiments, a first discharge valve 1131 is provided on the first discharge pipe 113. The first discharge valve 1131 is located between the discharge port of the second tank 121 and the first conveying valve 131, and is used to control the opening and closing of the first discharge pipe 113. A third discharge valve 1241 is provided on the third discharge pipe 124. The third discharge valve is located upstream of the second cleaning pipe, and is used to control the opening and closing of the third discharge pipe 124.

[0056] During the cleaning process, the cleaning fluid in the cleaning fluid pumping device 100 is transported to the second tank 121 through the first cleaning pipe 122 to clean the second tank 121. The cleaning fluid in the second tank 121 is output from the second discharge pipe 123 to clean the second discharge pipe 123 and the second discharge valve 1231.

[0057] Furthermore, when only the second discharge pipe 123 needs to be cleaned, such as Figure 2 As shown in the diagram, the arrows indicate the flow direction of the cleaning fluid. The first feed valve 131 and the third discharge valve 1241 are closed, while the second cleaning valve 151 is open. The cleaning fluid in the second discharge pipe 123 is then returned to the cleaning fluid pumping device 100 via the third cleaning pipe 150. It is understood that the cleaning fluid pumping device 100 may include a cleaning tank and a recovery tank to store unused cleaning fluid and recovered cleaning fluid, respectively.

[0058] When it is necessary to clean the third discharge pipe 124, such as Figure 3 As shown in the diagram, the arrows indicate the flow direction of the cleaning fluid. The third discharge valve 1241 is open, while the first conveying valve 131 and the second cleaning valve 151 are closed. The cleaning fluid flows from the second discharge pipe 123 into the third discharge pipe 124 to clean the third discharge pipe 124 and the third discharge valve 1241, and is then sent to the next-level storage tank for further cleaning. When cleaning of the first storage tank 110 is required, as... Figure 4As shown in the diagram, the solid arrows indicate the flow direction of the cleaning fluid from the cleaning fluid pumping device 100 to the first tank 111, and the hollow arrows indicate the flow direction of the cleaning fluid from the first tank 111 to the next-level storage tank. The third discharge valve 1241, the first cleaning valve 141, and the first discharge valve 1131 are in the open state, while the first conveying valve 131 and the second cleaning valve 151 are in the closed state. The cleaning fluid is conveyed from the second discharge pipe 123 to the third discharge pipe 124, and the cleaning fluid in the third discharge pipe 124 is conveyed to the first tank 111 through the second cleaning pipe 140 to clean the first tank 111. Afterwards, the flow of the cleaning fluid from the first tank 111 into the first discharge pipe 113 is stopped to clean the first discharge pipe 113, the first conveying valve 131, and the first discharge valve 1131. Then, the second discharge valve 1231 and the first cleaning valve 141 are closed, and the first conveying valve 131 is opened. The cleaning liquid in the first discharge pipe 113 is conveyed to the next-stage storage tank for cleaning through the second discharge pipe 123 and the third discharge pipe 124.

[0059] The cleaning fluid pumping device 100 is connected to the second tank 121 via the first cleaning pipe 122. The second cleaning pipe 140 and the third cleaning pipe 150 form a loop between the cleaning fluid pumping device 100, the first storage tank 110, and the second storage tank 120, allowing the cleaning fluid to flow bidirectionally between the first and second storage tanks. This enables bidirectional flushing of the first discharge pipe 113 and the second discharge pipe 123, reducing cleaning dead zones and improving cleaning efficiency. During the cleaning process, only certain pipes and valves can be cleaned as needed, simplifying the process. For example, only the second tank 121, the second discharge pipe 123, and the second discharge valve 1231 can be cleaned, after which the cleaning fluid is recovered from the third cleaning pipe 150 back to the cleaning fluid pumping device 100.

[0060] According to the liquid storage tank cleaning system of this utility model embodiment, the cleaning fluid pumping device 100 is connected to the second storage tank 120, and a loop is formed between the cleaning fluid pumping device 100, the first storage tank 110, and the second storage tank 120 through the second cleaning pipe 140 and the third cleaning pipe 150, so that the cleaning fluid can flow bidirectionally between the first storage tank 110 and the second storage tank 120 to perform bidirectional flushing of the first discharge pipe 113 and the second discharge pipe 123, reduce cleaning dead corners, and improve the cleaning effect.

[0061] Figure 7As shown in the figure, the solid arrows indicate the flow direction of the cleaning fluid from the cleaning fluid pumping device 100 to the first tank 111, and the hollow arrows indicate the flow direction of the cleaning fluid from the first tank 111 to the next-level storage tank. According to some embodiments of this utility model, the liquid storage tank cleaning system also includes a return pipe 160. One end of the return pipe 160 is connected to the first discharge pipe 113 and is located downstream of the first discharge valve 1131. The other end of the return pipe 160 is connected to the third discharge pipe 124 and is located downstream of the second cleaning pipe 140. In this way, the cleaning fluid used to clean the first tank 111, the first discharge pipe 113, and the first discharge valve 1131 can flow into the third discharge pipe 124 through the return pipe 160 and then be transported to the next storage tank, instead of being transported to the third discharge pipe 124 through the second discharge pipe 123. This reduces the time that the second discharge pipe 123 is occupied and simplifies the cleaning process. The cleaning fluid can be continuously supplied through the second tank 121 and the second discharge pipe 123.

[0062] According to some embodiments of the application, a first return valve 161 and a second return valve 162 are provided on the return pipe 160. The first return valve 161 is located at the connection between the return pipe 160 and the first discharge pipe 113, and the second return valve 162 is located at the connection between the return pipe 160 and the third discharge pipe 124, to prevent material from entering the return pipe 160 during material conveying. In some embodiments, a protective valve 1244 is provided on the third discharge pipe 124, located between the second cleaning pipe 140 and the return pipe 160, to prevent cleaning fluid in the return pipe 160 from flowing into the second cleaning pipe 140.

[0063] like Figure 1 According to some embodiments of the present invention, the second cleaning pipe 140 has a connecting branch pipe 142, which is connected to the feed pipe 112. A third cleaning valve 143 is provided on the connecting branch pipe 142. During the cleaning process, the third cleaning valve 143 can be opened to allow the cleaning liquid in the second cleaning pipe 140 to flow into the feed pipe 112 through the connecting branch pipe 142 and then into the first tank 111 to clean the feed pipe 112.

[0064] According to some embodiments of this application, a filter 152 is provided on the third cleaning pipe 150. The filter 152 is closer to the cleaning fluid pumping device 100 than the second cleaning valve 151. Furthermore, the second cleaning valve 151 is closer to the second discharge pipe 123 than the third water pump 154. That is, the filter 152 is located between the second cleaning valve 151 and the third water pump 154 ​​to filter the cleaning fluid. In some embodiments, a check valve 153 is provided at the connection between the third cleaning pipe 150 and the cleaning fluid pumping device 100 to prevent the cleaning fluid in the cleaning fluid pumping device 100 from flowing into the third cleaning pipe 150.

[0065] According to some embodiments of this utility model, a first flow meter 1121 is provided on the feed pipe 112, and a second flow meter 1245 is provided on the third discharge pipe 124. The second flow meter 1245 is located downstream of the third discharge valve 1241. Further, the third discharge valve 1241 is located downstream of the second water pump 1246. The first flow meter 1121 detects the flow rate of the material in the feed pipe 112, and the second flow meter 1245 detects the flow rate of the material output from the second storage tank 120, thereby monitoring the amount of residual material in the first storage tank 110 and the second storage tank 120, so as to facilitate timely cleaning.

[0066] According to some embodiments of this utility model, a fourth discharge valve 1242 is provided on the third discharge pipe 124, and the fourth discharge valve 1242 is located between the third discharge valve 1241 and the second cleaning pipe 140. The liquid storage tank cleaning system also includes a fourth cleaning pipe 170, one end of which is connected to the third discharge pipe 124 and located between the third discharge valve 1241 and the fourth discharge valve 1242. During the cleaning process, the third discharge valve 1241 can be opened and the fourth discharge valve 1242 can be closed, allowing the cleaning liquid in the fourth cleaning pipe 170 to enter the second discharge pipe 123 through the third discharge pipe 124; or, the third discharge valve 1241 can be closed and the fourth discharge valve 1242 can be opened, allowing the cleaning liquid in the fourth cleaning pipe 170 to clean the third discharge pipe 124, or allowing the cleaning liquid in the fourth cleaning pipe 170 to enter the second cleaning pipe 140 through the third discharge pipe 124, so as to clean the first storage tank 110.

[0067] The other end of the fourth cleaning pipe 170 is connected to the cleaning fluid pumping device 100. The fourth cleaning pipe 170 is equipped with an inlet valve 171 to control the opening or closing of the fourth cleaning pipe 170. The cleaning fluid can be transported through the fourth cleaning pipe 170 to the third discharge pipe 124, thereby cleaning the second discharge pipe 123, the inlet pipe 112, the first tank 111, or the first discharge pipe 113. On the one hand, during the cleaning process, the user can choose to input the cleaning fluid from the first cleaning pipe 122 or deliver the cleaning fluid from the fourth cleaning pipe 170 according to the needs, so as to simplify the cleaning process; on the other hand, different cleaning fluids can be input into the first cleaning pipe 122 and the fourth cleaning pipe 170 respectively, and cleaning can be performed simultaneously to improve the cleaning effect and cleaning efficiency.

[0068] According to some embodiments of this utility model, a fifth discharge valve 1243 is provided on the third discharge pipe 124, and the fifth discharge valve 1243 is located downstream of the third discharge valve 1241. The liquid storage tank cleaning system also includes a first pulse pipe 180, one end of which is connected to the third discharge pipe 124 and located between the third discharge valve 1241 and the fifth discharge valve 1243, and the other end is connected to the cleaning fluid pumping device 100. A first pulse valve 181 is provided on the first pulse pipe 180.

[0069] like Figure 1 As shown, the fifth discharge valve 1243 is located between the third discharge valve 1241 and the fourth cleaning pipe 170. Figure 5 As shown in the diagram, the arrows indicate the flow direction of the cleaning fluid. During the cleaning process, the second discharge valve 1231, the third discharge valve 1241, and the first pulse valve 181 are all open, while the first conveying valve 131, the fifth discharge valve 1243, and the second cleaning valve 151 are all closed. At this time, the cleaning fluid pumping device 100 periodically delivers cleaning fluid to the first cleaning pipe 122. After cleaning the first cleaning pipe 122, the second tank 121, and the second discharge valve 1231, the cleaning fluid enters the third discharge pipe 124 and cleans the third discharge valve 1241 and the fifth discharge valve 1243. Finally, the cleaning fluid is recovered to the cleaning fluid pumping device 100 through the first pulse valve 181 and the first pulse pipe 180. This achieves pulse cleaning of the second tank 121, the second discharge valve 1231, the third discharge valve 1241, and the fifth discharge valve 1243, improving the cleaning effect. In some embodiments, the inlet valve 171, the fifth outlet valve 1243, and the first pulse valve 181 can be opened, while the third outlet valve 1241 and the fourth outlet valve 1242 can be closed. The cleaning fluid pumping device 100 periodically delivers cleaning fluid through the fourth cleaning pipe 170 to perform pulse cleaning on the fifth outlet valve 1243 and the third outlet valve 1241. Of course, the above two pulse cleaning processes can also be performed sequentially to perform bidirectional pulse cleaning on the third outlet valve 1241, the fifth outlet valve 1243, and a section of the third outlet pipe 124, thereby improving the cleaning effect.

[0070] According to some embodiments of this utility model, a second conveying valve 132 is provided on the first discharge pipe 113, and the second conveying valve 132 is located downstream of the first conveying valve 131. The liquid storage tank cleaning system also includes a second pulse pipe 182, one end of which is connected to the first discharge pipe 113 and located between the first conveying valve 131 and the second conveying valve 132, and the other end is connected to the cleaning fluid pumping device 100. A second pulse valve 183 is provided on the second pulse pipe 182.

[0071] During the cleaning process, such as Figure 6As shown in the diagram, the arrows indicate the flow direction of the cleaning fluid. The second discharge valve 1231, the second conveying valve 132, and the second pulse valve 183 are all open, while the third discharge valve 1241, the second cleaning valve 151, and the first conveying valve 131 are all closed. At this time, the cleaning fluid pumping device 100 periodically delivers cleaning fluid to the first cleaning pipe 122. The cleaning fluid cleans the second tank 121, the second discharge pipe 123, the second discharge valve 1231, the second conveying valve 132, and the first conveying valve 131. Finally, the cleaning fluid is recovered to the cleaning fluid pumping device 100 through the second pulse pipe 182 and the second pulse valve 183. This achieves pulse cleaning of a section of the second tank 121, the second discharge pipe 123, the second discharge valve 1231, the first conveying valve 131, the second conveying valve 132, and the first discharge pipe 113. Of course, cleaning fluid can also be input from the fourth cleaning pipe 170 as needed. At this time, the inlet valve 171, the fifth outlet valve 1243, the third outlet valve 1241, the second conveying valve 132 and the second pulse valve 183 are all in the open state, while the fourth outlet valve 1242, the second outlet valve 1231, the second cleaning valve 151 and the first conveying valve 131 are all in the closed state.

[0072] According to an embodiment of the present invention, a liquid storage tank cleaning method is applied to the liquid storage tank cleaning system described above. The liquid storage tank cleaning system further includes a controller, which is communicatively connected to the cleaning fluid pumping device 100, the first discharge valve 1131, the second discharge valve 1231, the third discharge valve 1241, the fifth discharge valve 1243, the first cleaning valve 141, the second cleaning valve 151, the first conveying valve 131, the first pulse valve 181, the second conveying valve 132, and the second pulse valve 183. The controller is used to execute the liquid storage tank cleaning method.

[0073] The liquid storage tank cleaning method includes: when pulse cleaning the second tank body 121, the second discharge valve 1231, the third discharge valve 1241 and the fifth discharge valve 1243, controlling the second discharge valve 1231, the third discharge valve 1241 and the first pulse valve 181 to open, controlling the second conveying valve 132 and the second cleaning valve 151 to close, and the cleaning fluid pumping device 100 periodically pumps cleaning fluid to the first cleaning pipe 122 within a first set time. The first pumping cycle of the cleaning fluid pumping device 100 is less than the first set time.

[0074] According to some embodiments of the present invention, the liquid storage tank cleaning method further includes: when pulse cleaning the second tank body 121, the second discharge valve 1231, the second discharge pipe 123, the first conveying valve 131 and the second conveying valve 132, controlling the second discharge valve 1231, the second conveying valve 132 and the second pulse valve 183 to open, controlling the third discharge valve 1241, the first conveying valve 131 and the second cleaning valve 151 to close, and the cleaning liquid pumping device 100 periodically pumps cleaning liquid to the first cleaning pipe 122 within a second set time period, wherein the second pumping cycle of the cleaning liquid pumping device 100 is less than the second set time period.

[0075] like Figure 1 As shown, to facilitate understanding of the solution in this application, some embodiments of the working process of a liquid storage tank cleaning system are provided below:

[0076] Depending on the method by which the cleaning fluid pumping device 100 delivers the cleaning fluid, the cleaning process can be divided into a pulse cleaning process and a continuous cleaning process. During the pulse cleaning process, the cleaning fluid pumping device 100 delivers cleaning fluid to the first cleaning pipe 122 or the fourth cleaning pipe 170 at certain intervals within a preset working time. During the continuous cleaning process, the cleaning fluid pumping device 100 continuously delivers cleaning fluid to the first cleaning pipe 122 or the fourth cleaning pipe 170 within a preset working time.

[0077] During the pulse cleaning process, when pulse cleaning is required for the second tank 121, the second discharge valve 1231, the second discharge pipe 123, the third discharge valve 1241, and the fifth discharge valve 1243, the second discharge valve 1231, the third discharge valve 1241, the first pulse valve 181, the second conveying valve 132, and the second pulse valve 183 are all in the open state, while the fifth discharge valve 1243, the first conveying valve 131, the second cleaning valve 151, and the liquid inlet valve 171 are all in the closed state. The cleaning fluid is introduced into the second tank 121 through the first cleaning pipe 122 to clean the second tank 121; then, the cleaning fluid enters the second discharge pipe 123 and cleans the second discharge valve 1231; a portion of the cleaning fluid in the second discharge pipe 123 flows into the third discharge pipe 124 to clean the third discharge valve 1241 and the fifth discharge valve 1243, and the cleaning fluid in the third discharge pipe 124 finally flows back to the cleaning fluid pumping device 100 through the first pulse pipe 180; another portion of the cleaning fluid in the second discharge pipe 123 flows into the first discharge pipe 113 to clean the second discharge pipe 123, the second conveying valve 132 and the first conveying valve 131, and the cleaning fluid in the first discharge pipe 113 finally flows back to the cleaning fluid pumping device 100 through the second pulse pipe 182. It is understandable that the third discharge valve 1241, the fifth discharge valve 1243, the first conveying valve 131, and the second discharge valve 1231 may not be pulse cleaned at the same time. In this case, the third discharge valve 1241 or the first conveying valve 131 can be closed. The specific pulse cleaning process can be referred to the above pulse cleaning process, which will not be repeated here.

[0078] When pulse cleaning is required for the third discharge valve 1241 and the fifth discharge valve 1243, but not for the second tank 121, the second discharge valve 1231, and the second discharge pipe 123, the inlet valve 171, the fifth discharge valve 1243, the third discharge valve 1241, the second conveying valve 132, and the second pulse valve 183 are all in the open state, while the second discharge valve 1231, the first pulse valve 181, the second cleaning valve 151, the first conveying valve 131, and the fourth discharge valve 1242 are all in the closed state. The cleaning fluid is delivered to the third discharge pipe 124 through the fourth cleaning pipe 170, and cleans the fifth discharge valve 1243 and the third discharge valve 1241; the cleaning fluid in the third discharge pipe 124 flows into the first discharge pipe 113 through the second discharge pipe 123, and cleans the second discharge pipe 123, the second conveying valve 132 and the first conveying valve 131; finally, the cleaning fluid flows back to the cleaning fluid pumping device 100 through the second pulse pipe 182.

[0079] During continuous cleaning, when the cleaning fluid pumping device 100 delivers cleaning fluid through the first cleaning pipe 122, the first water pump 1132, the second water pump 1246, the third water pump 154, the second discharge valve 1231, the third discharge valve 1241, the fifth discharge valve 1243, the fourth discharge valve 1242, the first cleaning valve 141, the third cleaning valve 143, the first discharge valve 1131, the first return valve 161, the second return valve 162, and the second cleaning valve 151 are all in the open state, while the first pulse valve 181, the liquid inlet valve 171, the protection valve 1244, the feed valve 1122, the first conveying valve 131, and the second conveying valve 132 are all in the closed state. At this time, the cleaning fluid is input into the second tank 121 through the first cleaning pipe 122 to clean the second tank 121; then, the cleaning fluid flows into the second discharge pipe 123 and cleans the second discharge valve 1231; a portion of the cleaning fluid in the second discharge pipe 123 flows to the third cleaning pipe 150 to clean the second discharge pipe 123, and the cleaning fluid in the third cleaning pipe 150 is finally recycled to the cleaning fluid pumping device 100. Another portion of the cleaning fluid in the second discharge pipe 123 flows to the third discharge pipe 124, cleaning the third discharge valve 1241, the fifth discharge valve 1243, the fourth discharge valve 1242, and the third discharge pipe 124. Then, the cleaning fluid in the third discharge pipe 124 flows to the second cleaning pipe 140. Part of the cleaning fluid in the second cleaning pipe 140 flows into the first tank 111, while another portion flows into the first tank 111 through the inlet pipe 112, thus cleaning the inlet pipe 112 and the first tank 111. The cleaning fluid in the first tank 111 flows to the first discharge pipe 113, cleaning the first discharge valve 1131 and the first discharge pipe 113. The cleaning fluid in the first discharge pipe 113 flows through the return pipe 160 downstream of the protection valve 1244 on the third discharge pipe 124, and then flows into the next storage tank or to a designated recycling point.

[0080] When the cleaning fluid pumping device 100 delivers cleaning fluid through the fourth cleaning pipe 170, the inlet valve 171, the fifth outlet valve 1243, the third outlet valve 1241, the second cleaning valve 151, the fourth outlet valve 1242, the first cleaning valve 141, the third cleaning valve 143, the first outlet valve 1131, the first return valve 161 and the second return valve 162 are all in the open state, and the first pulse valve 181, the second outlet valve 1231, the second conveying valve 132, the protection valve 1244, the inlet valve 1122 and the first conveying valve 131 are all in the closed state.

[0081] When only the second discharge pipe 123 and the third discharge pipe 124 need to be cleaned, the third discharge valve 1241, the fifth discharge valve 1243, the second cleaning valve 151, the fourth discharge valve 1242 and the protection valve 1244 can be in the open state, while the first cleaning valve 141, the first pulse valve 181, the second return valve 162 and the second conveying valve 132 are in the closed state. The states of the second discharge valve 1231 and the liquid inlet valve 171 can be adjusted according to the input path of the cleaning fluid. When the cleaning fluid is input from the first cleaning pipe 122, the second discharge valve 1231 is open, and when the cleaning fluid is input from the fourth cleaning pipe 170, the second liquid inlet valve 171 is open.

[0082] Understandably, depending on production needs, the aforementioned pulse cleaning process can be arranged before or after the continuous cleaning process, or between two continuous cleaning processes, thereby improving the cleaning effect.

[0083] In summary, this utility model provides a liquid storage tank cleaning system in which the cleaning fluid can flow bidirectionally between the first storage tank 110 and the second storage tank 120, and can perform bidirectional flushing of the first discharge pipe 113 and the second discharge pipe 123, reducing cleaning dead zones and improving cleaning effect.

[0084] Finally, it should be noted that the above embodiments are only used to illustrate this utility model and are not intended to limit it. It should be pointed out that those skilled in the art can make several improvements and substitutions without departing from the technical principles of this utility model, and these improvements and substitutions should also be considered within the protection scope of this utility model.

Claims

1. A liquid storage tank cleaning system characterized by, The system comprises: a cleaning liquid pumping device (100) for providing cleaning liquid; a first storage tank (110) comprising a first tank body (111), a feeding pipe (112) and a first discharging pipe (113) both connected to the first tank body (111), one end of the feeding pipe (112) being communicated with a feeding port of the first tank body (111), the other end of the feeding pipe (112) being used for communicating with a feeding device, the first discharging pipe (113) being communicated with a discharging port of the first tank body (111), and a first feeding valve (131) being arranged on the first discharging pipe (113); a second storage tank (120) comprising a second tank body (121) a first cleaning pipe (122), a second discharging pipe (123) and a third discharging pipe (124), two ends of the first cleaning pipe (122) being communicated with the cleaning liquid pumping device (100) and the second tank body (121) respectively, the second discharging pipe (123) being arranged with a second discharging valve (1231), two ends of the second discharging pipe (123) being communicated with a discharging port of the second tank body (121) and the other end of the first discharging pipe (113) respectively one end of the third discharging pipe (124) being communicated with the second discharging pipe (123) and located between the second discharging valve (1231) and the first discharging pipe (113), and the other end being used for communicating with a next stage storage tank; a second cleaning pipe (140), one end of the second cleaning pipe (140) being communicated with the third discharging pipe (124), and the other end being communicated with a feeding port of the first tank body (111), and the second cleaning pipe (140) being arranged with a first cleaning valve (141); a third cleaning pipe (150), one end of the third cleaning pipe (150) being communicated with the second discharging pipe (123), and the other end being communicated with the cleaning liquid pumping device (100), and the third cleaning pipe (150) being arranged with a second cleaning valve (151).

2. The liquid tank cleaning system of claim 1, wherein, the first discharging pipe (113) being arranged with a first discharging valve (1131), and the first discharging valve (1131) being located between the discharging port of the second tank body (121) and the first feeding valve (131); the third discharging pipe (124) being arranged with a third discharging valve (1241), and the third discharging valve (1241) being located upstream of the second cleaning pipe (140).

3. The liquid tank cleaning system of claim 2, wherein, the liquid storage tank cleaning system further comprises a backflow pipe (160), one end of the backflow pipe (160) being communicated with the first discharging pipe (113) and located downstream of the first discharging valve (1131), and the other end being communicated with the third discharging pipe (124) and located downstream of the second cleaning pipe (140).

4. The liquid tank cleaning system of claim 3, wherein, The backflow pipe (160) is provided with a first backflow valve (161) and a second backflow valve (162), the first backflow valve (161) is arranged at the communication position of the backflow pipe (160) and the first discharge pipe (113), and the second backflow valve (162) is arranged at the communication position of the backflow pipe (160) and the third discharge pipe (124).

5. The liquid tank cleaning system of claim 3, wherein, The third discharge pipe (124) is provided with a protection valve (1244) between the second cleaning pipe (140) and the backflow pipe (160).

6. The liquid tank cleaning system of claim 1, wherein, The second cleaning pipe (140) is provided with a connecting branch pipe (142) in communication with the feed pipe (112), and the connecting branch pipe (142) is provided with a third cleaning valve (143).

7. The liquid tank cleaning system of claim 2, wherein, The third discharge pipe (124) is provided with a fourth discharge valve (1242) between the third discharge valve (1241) and the second cleaning pipe (140), The liquid tank cleaning system further comprises a fourth cleaning pipe (170), one end of the fourth cleaning pipe (170) is in communication with the third discharge pipe (124) and located between the third discharge valve (1241) and the fourth discharge valve (1242), and the other end is in communication with the cleaning liquid pumping device (100), and the fourth cleaning pipe (170) is provided with an inlet valve (171).

8. The liquid storage tank cleaning system of claim 2, wherein, The third discharge pipe (124) is provided with a fifth discharge valve (1243) downstream of the third discharge valve (1241), The liquid tank cleaning system further comprises a first pulse pipe (180), one end of the first pulse pipe (180) is in communication with the third discharge pipe (124) and located between the third discharge valve (1241) and the fifth discharge valve (1243), and the other end is in communication with the cleaning liquid pumping device (100), and the first pulse pipe (180) is provided with a first pulse valve (181).

9. The liquid storage tank cleaning system of claim 1, wherein, The first discharge pipe (113) is provided with a second feed valve (132) downstream of the first feed valve (131), The liquid tank cleaning system further comprises a second pulse pipe (182), one end of the second pulse pipe (182) is in communication with the first discharge pipe (113) and located between the first feed valve (131) and the second feed valve (132), and the other end is in communication with the cleaning liquid pumping device (100), and the second pulse pipe (182) is provided with a second pulse valve (183).

10. The liquid storage tank cleaning system of claim 1, wherein, The third cleaning pipe (150) is provided with a filter (152), and the filter (152) is closer to the cleaning liquid pumping device (100) than the second cleaning valve (151).

11. The liquid storage tank cleaning system of claim 2, wherein, The feed pipe (112) is provided with a first flow meter (1121), and the third discharge pipe (124) is provided with a second flow meter (1245) downstream of the third discharge valve (1241).

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