Fluid supply system

Abstract

The embodiment of the invention discloses a fluid supply system, relates to the technical field of fluid conveying, and can effectively reduce impact in the fluid conveying process. The fluid supply system comprises a liquid storage device and a liquid supply device, a liquid supply flow path is arranged between the liquid storage device and the liquid supply device and is used for conveying fluid from the liquid storage device to the liquid supply device; a liquid return flow path is further arranged between the liquid supply device and the liquid storage device and used for conveying fluid from the liquid supply device to the liquid storage device. The liquid supply device is provided with a liquid inlet part communicated with the liquid supply flow path, and is also provided with a liquid return part communicated with the liquid return flow path; and the liquid inlet part can be communicated with the liquid return part. The method is suitable for fluid conveying scenes.

Description

Technical Field

[0001] This application relates to the technical field of fluid transportation, and particularly to a fluid supply system. Background Art

[0002] Under the requirement of sustainable mining development, it is necessary to transport the filling paste to the designated areas above and below the well for filling. The filling paste is prepared by measuring various materials such as coal ash, cement, water, coal gangue, etc. by mass, and then stirring to control the required concentration and strength. The ash-sand ratio configured for different filling areas is different, and the water consumption also changes accordingly.

[0003] During the preparation of the filling paste, in order to regulate the liquid storage volume in the metering hopper, it is necessary to control the opening and closing of the pneumatic butterfly valve to control the fluid transportation to the metering hopper. When the pneumatic butterfly valve closes instantaneously, the flow direction of the fluid in the pipeline changes, and the pneumatic butterfly valve blocks the fluid from flowing into the metering hopper, resulting in a sudden increase in pressure in the pipeline and the pneumatic butterfly valve, strong vibration, and the generation of a water hammer effect. The fluid in the pipeline can generate an impact exceeding 1.60 Mpa. Summary of the Invention

[0004] In view of this, this application provides a fluid supply system that can effectively reduce the impact during fluid transportation.

[0005] An embodiment of this application provides a fluid supply system, including: a liquid storage device, a liquid supply device; a liquid supply flow path is provided between the liquid storage device and the liquid supply device for transporting fluid from the liquid storage device to the liquid supply device; a return liquid flow path is also provided between the liquid supply device and the liquid storage device for transporting fluid from the liquid supply device to the liquid storage device; the liquid supply device is provided with a liquid inlet part connected to the liquid supply flow path, and the liquid supply device is also provided with a return liquid part connected to the return liquid flow path; the liquid inlet part can be connected to the return liquid part.

[0006] In a specific implementation, the liquid inlet part includes a liquid inlet pipe, and the liquid supply device is provided with a liquid inlet; the first end of the liquid inlet pipe is connected to the liquid supply flow path, the second end of the liquid inlet pipe can be connected to the liquid inlet, and the second end of the liquid inlet pipe can be connected to the return liquid part.

[0007] In a specific implementation, the liquid supply device is provided with a commutation mechanism, and the commutation mechanism is used to drive the second end of the liquid inlet pipe to the first working position or the second working position; in the first working position, the second end of the liquid inlet pipe is connected to the liquid inlet, and in the second working position, the second end of the liquid inlet pipe is connected to the return liquid part.

[0008] In a specific embodiment, the liquid supply flow path includes a first flow path. The first end of the first flow path is in communication with the liquid storage device, and the second end of the first flow path is in communication with the liquid inlet part of the liquid supply device. Along the fluid delivery direction, the first flow path is successively and serially provided with a first flexible connector, a first delivery pump, a first check valve, and a first regulating valve; and / or The liquid supply flow path includes a second flow path. The first end of the second flow path is in communication with the liquid storage device, and the second end of the second flow path is in communication with the liquid inlet part of the liquid supply device. Along the fluid delivery direction, the second flow path is successively and serially provided with a second flexible connector, a second delivery pump, a second check valve, and a second regulating valve.

[0009] In a specific embodiment, a dosing flow path is further included; the liquid supply device is provided with a liquid outlet part, and the first end of the dosing flow path is in communication with the liquid outlet part; along the fluid delivery direction, the dosing flow path is successively and serially provided with a third regulating valve and a third delivery pump.

[0010] In a specific embodiment, the liquid supply flow path further includes a third flow path. The second end of the first flow path and / or the second end of the second flow path are respectively in communication with the first end of the third flow path, and the second end of the third flow path is in communication with the liquid inlet part of the liquid supply device; and / or The liquid supply flow path further includes a fourth flow path. The second end of the first flow path and / or the second end of the second flow path are respectively in communication with the first end of the fourth flow path, and along the fluid delivery direction, the fourth flow path is successively and serially provided with a reducing joint and a fourth regulating valve.

[0011] In a specific embodiment, the liquid supply flow path further includes an intermediate flow path. The second end of the first flow path and / or the second end of the second flow path are respectively in communication with the first end of the intermediate flow path; the first end of the third flow path and / or the first end of the fourth flow path are respectively in communication with the second end of the intermediate flow path; and a pressure monitoring member is provided on the intermediate flow path.

[0012] In a specific embodiment, the liquid supply device includes: a first container provided with the liquid inlet part and the liquid return part; a second container; the second container is connected to the first container, and a fluid channel is provided between the second container and the first container; an adjusting member movably provided in the fluid channel to adjust the fluid in the first container to flow into the second container through the fluid channel; a driving member for driving the adjusting member to move to a preset position. The driving member includes a rod body and a rotatable cylinder body. A guide groove is provided on the outer wall of the cylinder body. The first end of the rod body is connected to the adjusting member, the second end of the rod body extends into the guide groove, and the second end of the rod body is slidably connected to the guide groove.

[0013] In a specific embodiment, a first plate body and a second plate body are provided on one side of the second container close to the first container. A chute is formed between the first plate body and the second plate body. The adjusting member is of a plate-like structure and is slidably connected to the chute. A third plate body is further provided on the side of the second plate body facing away from the first plate body. An elastic column is provided between the third plate body and the second plate body. A tube body is axially penetrated through the elastic column, and the length of the tube body is less than the length of the elastic column. The second plate body is provided with a first end connector connected to the first end of the tube body; and / or the third plate body is provided with a second end connector connected to the second end of the tube body.

[0014] In a specific embodiment, a pin shaft is provided on the first plate body, and a rolling body is sleeved on the pin shaft. The rolling body can be in rolling contact with the adjusting member; and / or a sealing member is provided on the side of the first plate body close to the second plate body; and / or a sealing member is provided on the side of the second plate body close to the first plate body.

[0015] The fluid supply system provided by the embodiment of the present application includes: a liquid storage device and a liquid supply device; a liquid supply flow path is provided between the liquid storage device and the liquid supply device for transporting fluid from the liquid storage device to the liquid supply device; a liquid return flow path is further provided between the liquid supply device and the liquid storage device for transporting fluid from the liquid supply device to the liquid storage device; the liquid supply device is provided with a liquid inlet part communicated with the liquid supply flow path, and the liquid supply device is further provided with a liquid return part communicated with the liquid return flow path; the liquid inlet part can be communicated with the liquid return part; in this way, the liquid storage device can transport fluid to the liquid inlet part of the liquid supply device through the liquid supply flow path, and after the storage amount of the fluid in the liquid supply device meets the demand, the liquid inlet part of the liquid supply device is communicated with the liquid return part, so that the fluid flowing into the liquid supply flow path flows from the liquid inlet part into the liquid return part and then flows back to the liquid storage device through the liquid return flow path, thereby avoiding frequent opening and closing of the delivery pump in the liquid supply flow path and effectively reducing the impact during fluid transportation. Description of the Drawings

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1 Schematic diagram of a traditional liquid supply method for filling operations provided by the embodiment of the present application; Figure 2 Schematic diagram of a fluid supply system provided by the embodiment of the present application; Figure 3 3D schematic diagram of the liquid supply device provided by the embodiment of the present application; Figure 4 Cross-sectional schematic diagram of the liquid supply device provided by the embodiment of the present application; Figure 5 Side view schematic diagram of the liquid supply device provided by the embodiment of the present application; Figure 6 Schematic diagram of the adjusting member and the driving member of the liquid supply device provided by the embodiment of the present application; Figure 7 Schematic diagram of the second container of the liquid supply device provided by the embodiment of the present application; Figure 8 Partial schematic diagram of the second container of the liquid supply device provided by the embodiment of the present application; Figure 9 Schematic diagram of the connection of the elastic column of the liquid supply device provided by the embodiment of the present application; Figure 10 Assembly schematic diagram of the elastic column of the liquid supply device provided by the embodiment of the present application; Figure 11 Cross-sectional schematic diagram of the elastic column of the liquid supply device provided by the embodiment of the present application; Figure 12 Schematic diagram of the rolling body of the first plate of the liquid supply device provided by the embodiment of the present application.

[0018] Description of the main reference numerals: 10 - Liquid supply device; 11 - First container; 110 - Vent port; 111 - Metering member; 112 - Liquid inlet; 113 - Liquid inlet pipe; 114 - Liquid outlet; 115 - Liquid outlet pipe; 116 - Third regulating valve; 117 - Tank body; 118 - Transposition mechanism; 119 - Third transfer pump; 12 - Second container; 120 - Flow outlet; 121 - Avoidance groove; 13 - Adjusting member; 14 - Driving member; 141 - Rod body; 142 - Cylindrical body; 1420 - Guide groove; 15 - Slide groove; 161 - First plate body; 1611 - Pin shaft; 1612 - Rolling body; 162 - Second plate body; 163 - Third plate body; 171 - Elastic column; 172 - Pipe body; 173 - First end connecting member; 174 - Second end connecting member; 18 - Sealing member; 191 - Support seat; 192 - Bracket; 20 - Liquid storage device; 30 - Liquid supply flow path; 31 - First flow path; 311 - First flexible connecting member; 312 - First transfer pump; 313 - First check valve; 314 - First regulating valve; 32 - Second flow path; 321 - Second flexible connecting member; 322 - Second transfer pump; 323 - Second check valve; 324 - Second regulating valve; 33 - Third flow path; 331 - Electric ball valve; 332 - First pneumatic butterfly valve; 34 - Fourth flow path; 341 - Reducing joint; 342 - Fourth regulating valve; 35 - Intermediate flow path; 351 - Slow - closing check valve; 352 - Water hammer absorber; 353 - Pressure monitoring member; 40 - Liquid return flow path; 401 - Second pneumatic butterfly valve; 50 - Rationing flow path. Detailed implementation manners

[0019] The embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0020] It should be clear that the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application.

[0021] During the process of preparing the filling paste, in order to regulate the liquid storage volume in the metering hopper, it is necessary to control the opening and closing of the pneumatic butterfly valve to control the delivery of the fluid to the metering hopper. When the pneumatic butterfly valve closes instantaneously, the flow direction of the fluid in the pipeline changes, and the pneumatic butterfly valve blocks the fluid from flowing into the metering hopper, resulting in an instantaneous sharp increase in pressure in the pipeline and the pneumatic butterfly valve, strong vibration, and the generation of a water hammer effect. The fluid in the pipeline can generate an impact exceeding 1.60 Mpa, which is likely to damage components such as regulating valves; in addition, if the water pump starts and stops frequently at a high intensity, it will also damage key components such as the motor. For example Figure 1As shown, in the conventional liquid supply method for preparing filling slurry, in order to reduce the water hammer effect, a slow-closing check valve 351, a water hammer absorber 352, an electric ball valve 331, a first pneumatic butterfly valve 332, a metal hose, a rubber shock absorber, etc. need to be provided in the liquid supply path 30 from the liquid storage device 20 to the liquid supply device 10; for the excess water supplied, a second pneumatic butterfly valve 401 needs to be provided in the return liquid path 40, which will increase the number of equipment components and the failure rate, and reduce the reliability and stability of the equipment operation. In order to solve the above problems, as Figure 2 As shown, an embodiment of the present application provides a fluid supply system, which may include: a liquid supply device 10 and a liquid storage device 20.

[0022] A liquid supply flow path 30 is provided between the liquid storage device 20 and the liquid supply device 10, and is used to transport fluid from the liquid storage device 20 to the liquid supply device 10; the liquid storage device 20 is used to supply fluid such as water, slurry, etc. to the liquid supply device 10, and the liquid storage device 20 can be a container such as a pool, a water tank, a liquid storage tank, etc.; the liquid supply device 10 can also be a container such as a pool, a water tank, a liquid storage tank, etc. The liquid supply flow path 30 is used to transport the fluid in the liquid storage device 20 to the liquid supply device 10, one end of the liquid supply flow path 30 can be connected to the liquid storage device 20, and the other end of the liquid supply flow path 30 can be connected to the liquid supply device 10, and the liquid supply flow path 30 can be configured with a delivery pump, a valve, and other components to be able to pump the fluid in the liquid storage device 20 to the liquid supply device 10.

[0023] A liquid return flow path 40 is also provided between the liquid supply device 10 and the liquid storage device 20, which is used to transport fluid from the liquid supply device 10 to the liquid storage device 20; the liquid supply device 10 is provided with a liquid inlet portion connected to the liquid supply flow path 30, and the liquid supply device 10 is also provided with a liquid return portion connected to the liquid return flow path 40; the liquid inlet portion can be connected to the liquid return portion.

[0024] In this embodiment, the liquid supply device 10 is provided with a liquid inlet and a liquid return, and the liquid inlet can be connected with the liquid return. The liquid inlet can adopt a regulating valve or a pipeline, etc., and the liquid return can be configured as a structure that is convenient for connecting with the liquid inlet. For example, the liquid return can adopt a regulating valve that can be interconnected with the liquid inlet; or the liquid inlet adopts a pipeline, and the liquid return adopts a structure that is convenient for connecting with the pipeline, such as a trough body 117, etc., so that the fluid in the liquid inlet flows into the liquid return.

[0025] The liquid supply flow path 30 and the liquid return flow path 40 can be configured by using pipelines, grooves, etc. respectively. The fluid transported by the liquid supply flow path 30 to the liquid supply device 10 can flow into the liquid supply device 10 from the liquid inlet part. After the storage amount of the fluid in the liquid supply device 10 meets the requirements, the liquid inlet part can be connected to the liquid return part, and the excess fluid transported by the liquid supply flow path 30 to the liquid inlet part can flow back to the liquid storage device 20 through the liquid return flow path 40 from the liquid return part. In this way, the transfer pump of the liquid supply flow path 30 can always operate to transport fluid to the liquid supply device 10. After the fluid stored in the liquid supply device 10 meets the usage requirements, the excess fluid transported by the liquid supply flow path 30 can flow back to the liquid storage device 20 through the liquid return flow path 40, rather than shutting down the transfer pump of the liquid supply flow path 30 to stop transporting fluid to the liquid supply device 10 in the traditional way, which is beneficial to reducing the frequent start and stop of the transfer pump and avoiding damage to key components such as the motor.

[0026] One end of the liquid return flow path 40 can be connected to the liquid supply device 10, and the other end of the liquid return flow path 40 can be connected to the liquid storage device 20. The liquid return flow path 40 can be configured with components such as a transfer pump and a regulating valve to be able to pump the fluid in the liquid supply device 10 to the liquid storage device 20; in this embodiment, the liquid return parts of the liquid storage device 20 and the liquid supply device 10 can be configured such that the liquid level height of the liquid return part is greater than the liquid level height of the liquid storage device 20. In this way, the liquid return flow path 40 can also enable the fluid to flow from the liquid return part of the liquid supply device 10 to the liquid storage device 20 under the action of gravity based on the height difference between the liquid return part and the liquid storage device 20, thereby avoiding setting a regulating valve in the liquid return flow path 40 and avoiding the water hammer effect caused by the instantaneous opening and closing of the regulating valve.

[0027] The fluid supply system provided by the embodiment of the present application includes: a liquid storage device 20 and a liquid supply device 10; a liquid supply flow path 30 is provided between the liquid storage device 20 and the liquid supply device 10 for transporting fluid from the liquid storage device 20 to the liquid supply device 10; a liquid return flow path 40 is also provided between the liquid supply device 10 and the liquid storage device 20 for transporting fluid from the liquid supply device 10 to the liquid storage device 20; the liquid supply device 10 is provided with a liquid inlet part connected to the liquid supply flow path 30, and the liquid supply device 10 is also provided with a liquid return part connected to the liquid return flow path 40; the liquid inlet part can be connected to the liquid return part; in this way, the liquid storage device 20 can transport fluid to the liquid inlet part of the liquid supply device 10 through the liquid supply flow path 30, and after the storage amount of the fluid in the liquid supply device 10 meets the demand, the liquid inlet part of the liquid supply device 10 is connected to the liquid return part, so that the fluid flowing into the liquid supply device 10 from the liquid supply flow path 30 flows from the liquid inlet part into the liquid return part and then flows back to the liquid storage device 20 through the liquid return flow path 40, thereby avoiding the frequent opening and closing of the transfer pump in the liquid supply flow path 30 and effectively reducing the impact during fluid transportation.

[0028] Optionally, such as Figure 3As shown, in an embodiment of the present application, the liquid inlet part includes a liquid inlet pipe 113, and the liquid supply device 10 is provided with a liquid inlet 112; the first end of the liquid inlet pipe 113 is communicated with the liquid supply flow path 30, the second end of the liquid inlet pipe 113 can be communicated with the liquid inlet 112, and the second end of the liquid inlet pipe 113 can be communicated with the liquid return part. The liquid inlet 112 of the liquid supply device 10 can be arranged at the top, and the liquid inlet pipe 113 can be suspended above the liquid inlet 112. In this way, the fluid flowing out of the second end of the liquid inlet pipe 113 can flow into the liquid supply device 10 from the liquid inlet 112. The liquid return part of the liquid supply device 10 can be a tank 117. The tank 117 can be provided with an orifice communicated with the liquid return flow path 40. The liquid return part can be arranged adjacent to the liquid inlet 112 and is located below the liquid inlet pipe 113. In this way, the second end of the liquid inlet pipe 113 can be switched and pushed to above the liquid inlet 112 or above the liquid return part. At least part of the liquid inlet pipe 113 is configured as a flexible pipe to facilitate switching and pushing the position of the second end of the liquid inlet pipe 113.

[0029] When the second end of the liquid inlet pipe 113 is pushed to above the liquid inlet 112, the second end of the liquid inlet pipe 113 is communicated with the liquid inlet 112. The fluid in the liquid storage device 20 flows into the first end of the liquid inlet pipe 113 through the liquid supply flow path 30 and flows into the liquid supply device 10 from the second end of the liquid inlet pipe 113 through the liquid inlet 112 of the liquid supply device 10. When the second end of the liquid inlet pipe 113 is pushed to above the liquid return part, the second end of the liquid inlet pipe 113 is communicated with the liquid return part. The fluid in the liquid storage device 20 flows into the first end of the liquid inlet pipe 113 through the liquid supply flow path 30, flows into the liquid return part from the second end of the liquid inlet pipe 113, and then flows back to the liquid storage device 20 from the liquid return part through the liquid return flow path 40.

[0030] In this embodiment, the liquid inlet part is configured as the liquid inlet pipe 113, and the communication between the liquid inlet pipe 113 and the liquid inlet 112 or the communication between the liquid inlet pipe 113 and the liquid return part is realized by switching and pushing the position of the second end of the liquid inlet pipe 113, which is beneficial to reducing the setting of regulating valves and avoiding the water hammer effect caused by the sudden opening and closing of the regulating valves, the change of the flow direction of the fluid in the pipeline, and the sudden increase in pressure and strong vibration in the pipeline or the regulating valves.

[0031] Optionally, as Figure 3As shown, in an embodiment of the present application, the liquid supply device 10 is provided with a transposition mechanism 118. The transposition mechanism 118 is used to drive the second end of the liquid inlet pipe 113 to the first working position or the second working position. At the first working position, the second end of the liquid inlet pipe 113 is communicated with the liquid inlet 112. At the second working position, the second end of the liquid inlet pipe 113 is communicated with the liquid return part. The transposition mechanism 118 can be arranged at the top of the liquid supply device 10 and adopt a pneumatic drive or a hydraulic drive mode. For example, the transposition mechanism 118 can include two cylinders. The two cylinders are connected to the liquid supply device 10, and the piston rods of the two cylinders are respectively connected to a connecting rod. The connecting rod is connected to the second end of the liquid inlet pipe 113. In this way, when the piston rods of the two cylinders extend or contract, the connecting rod can be driven to drive the second end of the liquid inlet pipe 113 to move reciprocally, so that the second end of the liquid inlet pipe 113 is switched to the first working position or the second working position. At the first working position, the second end of the liquid inlet pipe 113 is communicated with the liquid inlet 112. The fluid in the liquid storage device 20 flows into the liquid supply device 10 from the first end of the liquid inlet pipe 113 through the liquid supply flow path 30 and flows into the liquid supply device 10 from the second end of the liquid inlet pipe 113 through the liquid inlet 112 of the liquid supply device 10. At the second working position, the second end of the liquid inlet pipe 113 is communicated with the liquid return part. The fluid in the liquid storage device 20 flows into the liquid supply device 10 from the first end of the liquid inlet pipe 113 through the liquid supply flow path 30, flows into the liquid return part from the second end of the liquid inlet pipe 113, and then flows back to the liquid storage device 20 from the liquid return part through the liquid return flow path 40.

[0032] Optionally, as Figure 2 shown, in an embodiment of the present application, the liquid supply flow path 30 includes a first flow path 31. The first end of the first flow path 31 is communicated with the liquid storage device 20, and the second end of the first flow path 31 is communicated with the liquid inlet part of the liquid supply device 10. Along the fluid transportation direction, the first flow path 31 is successively and serially provided with a first soft connector 311, a first transfer pump 312, a first check valve 313, and a first regulating valve 314; and / or the liquid supply flow path 30 includes a second flow path 32. The first end of the second flow path 32 is communicated with the liquid storage device 20, and the second end of the second flow path 32 is communicated with the liquid inlet part of the liquid supply device 10. Along the fluid transportation direction, the second flow path 32 is successively and serially provided with a second soft connector 321, a second transfer pump 322, a second check valve 323, and a second regulating valve 324.

[0033] In this embodiment, the first end of the first flow path 31 is communicated with the liquid storage device 20. For example, the liquid storage device 20 can be provided with a first outlet, and the first end of the first flow path 31 is communicated with the first outlet. To improve the reliability of the system, a second flow path 32 can be further added. The first end of the second flow path 32 is communicated with the liquid storage device 20. For example, the liquid storage device 20 can be provided with a second outlet, and the first end of the second flow path 32 is communicated with the second outlet. Among them, the first outlet and the second outlet can be different outlets. For example, the opening positions of the first outlet and the second outlet on the liquid storage device 20 are different to further improve the mutual independence of the first flow path 31 and the second flow path 32 and the reliability of the system. In some other embodiments, the first outlet and the second outlet can also be the same outlet.

[0034] The first flexible connector 311 and the second flexible connector 321 can be made of corrugated pipes or rubber hoses, etc., which is beneficial to reducing the pipeline vibration or impact of the first flow path 31 and the second flow path 32 respectively. The first delivery pump 312 and the second delivery pump 322 can respectively deliver the fluid in the liquid storage device 20 to the liquid supply device 10 through the first flow path 31 and the second flow path 32 by power. The first regulating valve 314 and the second regulating valve 324 can specifically adopt ball valves, etc., so as to facilitate the regulation of the flow rate or flow state of the first flow path 31 and the second flow path 32 respectively.

[0035] Optionally, as Figure 2 shown, in an embodiment of the present application, a dispensing flow path 50 is further included; the liquid supply device 10 is provided with a liquid outlet part, and the first end of the dispensing flow path 50 is communicated with the liquid outlet part; the dispensing flow path 50 is sequentially connected in series with a third regulating valve 116 and a third delivery pump 119 along the fluid delivery direction. In this embodiment, according to the water demand of the liquid-using equipment such as a mixer, the liquid supply device 10 can deliver the fluid to the liquid-using equipment through the dispensing flow path 50. The first end of the dispensing flow path 50 is communicated with the liquid outlet part, and the second end of the dispensing flow path 50 is communicated with the water inlet of the mixer. The third regulating valve 116 can adopt a butterfly valve, etc., to regulate the flow rate or flow state of the dispensing flow path 50. The third delivery pump 119 can adopt a pipeline pump, and the inlet and outlet of the pipeline pump can be on the same straight line to pressurize and deliver the fluid in the dispensing flow path 50.

[0036] Optionally, as Figure 2 shown, in an embodiment of the present application, the liquid supply flow path 30 further includes a third flow path 33. The second end of the first flow path 31 and / or the second end of the second flow path 32 are respectively communicated with the first end of the third flow path 33, and the second end of the third flow path 33 is communicated with the liquid inlet part of the liquid supply device 10; and / or The liquid supply flow path 30 further includes a fourth flow path 34. The second end of the first flow path 31 and / or the second end of the second flow path 32 are respectively connected to the first end of the fourth flow path 34. Along the fluid delivery direction, a reducing joint 341 and a fourth regulating valve 342 are successively arranged in series in the fourth flow path 34.

[0037] In this embodiment, the third flow path 33 can be used to deliver fluid to the liquid supply device 10, so as to supply water to a liquid-using device such as a mixer through the liquid supply device 10, and the fourth flow path 34 is used to supply water to other liquid-using devices such as a flushing device.

[0038] Fluid is delivered from the first flow path 31 and / or the second flow path 32 to the third flow path 33. According to the foregoing, the fluid delivered by the liquid supply flow path 30 to the liquid supply device 10 can flow into the liquid supply device 10 through the liquid inlet part. After the storage amount of the fluid in the liquid supply device 10 meets the requirements, the liquid inlet part can be connected to the liquid return part, and the excess fluid delivered by the liquid supply flow path 30 to the liquid inlet part can flow back to the liquid storage device 20 through the liquid return part via the liquid return flow path 40. In this way, it is possible to avoid the liquid supply method in the traditional way that a regulating valve such as an electric ball valve 331 or a pneumatic butterfly valve needs to be arranged in the third flow path 33 to stop delivering fluid to the liquid supply device 10, thereby avoiding the water hammer effect caused by the instant opening and closing of the regulating valve.

[0039] The fourth flow path 34 can supply water to other liquid-using devices such as a flushing device. The second end of the first flow path 31 and / or the second end of the second flow path 32 are respectively connected to the first end of the fourth flow path 34, and the second end of the fourth flow path 34 can be connected to the water inlet of the flushing device. The reducing joint 341 configured in the fourth flow path 34 facilitates the quick connection between pipes; the regulating valve configured in the fourth flow path 34 can specifically adopt a pneumatic butterfly valve to facilitate the control of water supply to the flushing device.

[0040] Optionally, as Figure 2 shown, in an embodiment of the present application, the liquid supply flow path 30 further includes an intermediate flow path 35. The second end of the first flow path 31 and / or the second end of the second flow path 32 are respectively connected to the first end of the intermediate flow path 35; the first end of the third flow path 33 and / or the first end of the fourth flow path 34 are respectively connected to the second end of the intermediate flow path 35; a pressure monitoring member 353 is arranged in the intermediate flow path 35.

[0041] The intermediate flow path 35 in this embodiment can deliver the fluid of the first flow path 31 and / or the second flow path 32 to the third flow path 33 and / or the fourth flow path 34. The pressure monitoring member 353 configured in the intermediate flow path 35 can specifically adopt a pressure sensor to facilitate the monitoring of the pressure change of the fluid during the supply process to the third flow path 33 and / or the fourth flow path 34.

[0042] In addition, in the traditional liquid supply method, a slow-closing check valve 351, a water hammer absorber 352, etc. need to be arranged in the intermediate flow path 35. However, in the fluid supply system of this embodiment, as described above, the fluid conveyed by the liquid supply flow path 30 to the liquid supply device 10 can flow into the liquid supply device 10 from the liquid inlet part. After the storage amount of the fluid in the liquid supply device 10 meets the requirements, the liquid inlet part can be connected to the liquid return part, and the excess fluid conveyed by the liquid supply flow path 30 to the liquid inlet part can flow back to the liquid storage device 20 through the liquid return part via the liquid return flow path 40. In this way, it is possible to avoid arranging regulating valves such as an electric ball valve 331 and a pneumatic butterfly valve in the fluid conveying path of the liquid supply device 10, such as the aforementioned third flow path 33, thereby avoiding the water hammer effect of the regulating valve and canceling components such as the slow-closing check valve 351 and the water hammer absorber 352 in the intermediate flow path 35, which is beneficial to reducing equipment costs and the failure rate and improving the working reliability of the equipment.

[0043] Optionally, as Figure 3 , Figure 4 shown, in an embodiment of the present application, the liquid supply device 10 includes: a first container 11, a second container 12, a regulating member 13, and a driving member 14.

[0044] The first container 11 is provided with a liquid inlet part and a liquid return part; the first container 11 can be of any shape or structure. For example, when there are high environmental requirements for the fluid, such as cleanliness requirements, the first container 11 can be a closed structure. When there are no special requirements for the fluid, the first container 11 can be a semi-closed structure. For example, the top of the first container 11 can be an open type. The accommodating cavity of the first container 11 can be used to store fluids such as water and slurry. The liquid inlet part of the first container 11 is used for the fluid to flow into the first container 11. The liquid inlet part can include pipes or pipe groups such as a liquid inlet pipe 113 suspended above the first container 11. An inlet opening 112 can be opened in the upper part of the first container 11 to allow a single fluid or multiple fluids to flow into the first container 11. In addition, the first container 11 can also be provided with an outlet part to facilitate supplying the fluid to the liquid-using equipment through the outlet part. The liquid return part can be arranged adjacent to the inlet opening 112 at the top of the first container 11. The liquid return part can be a trough 117, and the trough 117 can be provided with an orifice communicating with the liquid return flow path 40. The second end of the liquid inlet pipe 113 can be switched and pushed above the inlet opening 112 or above the liquid return part.

[0045] At least part of the liquid inlet pipe 113 is configured as a flexible pipe, which not only facilitates moving and switching the position of the second end of the liquid inlet pipe 113, but also helps to reduce the impact of the fluid and facilitates the connection of the liquid inlet pipe 113 to the liquid supply flow path 30. In some embodiments, the second end of the liquid inlet pipe 113 can extend into the first container 11 to reduce the drop of the fluid flowing into the first container 11 from the second end of the liquid inlet pipe 113 and avoid affecting the measurement accuracy of the metering member 111, such as a pressure sensor.

[0046] The second container 12 is connected to the first container 11, and a fluid passage is provided between the second container 12 and the first container 11; the fluid passage enables the fluid in the first container 11 to flow into the second container 12, so as to flexibly adjust the fluid storage amount in the first container 11 according to the actual production situation. The fluid passage can be formed based on the actual shape and structure of the first container 11 and the second container 12, or can be an independent structure connected to the first container 11 and the second container 12. The second container 12 can also be of any shape or structure, and the volumes of the second container 12 and the first container 11 can be set according to actual needs. For example, the volume of the second container 12 can be smaller than that of the first container 11 to reduce the manufacturing cost or volume of the equipment, or the volume of the second container 12 can be larger than or equal to that of the first container 11 to have a higher capacity for containing and adjusting the fluid in the first container 11.

[0047] As Figure 4 shown, the second container 12 can be arranged on one side of the first container 11 or at the bottom of the first container 11. In this way, when the liquid level in the first container 11 is higher than the liquid level in the second container 12, the fluid in the first container 11 can flow into the second container 12 under the action of gravity; in some other embodiments, the second container 12 can also be arranged at any position relative to the first container 11, and a power device can be adopted to enable the fluid in the first container 11 to flow into the second container 12 through the fluid passage. The fluid flowing into the second container 12 can be further recycled. For example, an outflow passage or a fluid conveying device for the fluid can be provided on the second container 12 to enable the fluid in the second container 12 to flow to a target position such as the liquid storage device 20, etc.; in this embodiment, the second container 12 and the liquid storage device 20 can be configured such that the liquid level height of the second container 12 is greater than the liquid level height of the liquid storage device 20. In this way, the second container 12 can be provided with an outlet 120 communicating with the liquid return flow path 40, and based on the height difference between the second container 12 and the liquid storage device 20, the fluid in the second container 12 can flow back to the liquid storage device 20 under the action of gravity through the liquid return flow path 40.

[0048] The adjusting member 13 is movably arranged in the fluid passage to adjust the fluid in the first container 11 to flow into the second container 12 through the fluid passage; as Figure 3 、 Figure 4As shown in the figure, the adjusting member 13 disposed in the fluid passage can control the opening and closing of the fluid passage or the passage area of the fluid in the fluid passage by moving, or can also control the opening and closing of the fluid passage or the passage area of the fluid in the fluid passage by rotating, so as to adjust the fluid in the first container 11 to flow into the second container 12 through the fluid passage. For example, the adjusting member 13 can be moved to the closed position so that the fluid in the first container 11 cannot flow into the second container 12 through the fluid passage; the adjusting member 13 can be moved to the fully open position so that the fluid in the first container 11 can flow into the second container 12 through the fluid passage with the maximum possible flow capacity; the adjusting member 13 can be moved to a preset open position so that the fluid in the first container 11 can flow into the second container 12 through the fluid passage with a preset flow capacity; the fluid capacity here can be the velocity or flow rate of the fluid. In addition, the adjustment of the adjusting member 13 can be achieved manually, or can also be achieved by a power-driven method, or a monitoring device can be installed on site, and according to the on-site working conditions photographed by the monitoring device, the adjustment of the adjusting member 13 can be achieved by remote control.

[0049] The driving member 14 is used to drive the adjusting member 13 to move to a preset position. The driving member 14 includes a rod body 141 and a rotatable cylinder body 142. A guide groove 1420 is provided on the outer wall of the cylinder body 142. The first end of the rod body 141 is connected to the adjusting member 13, the second end of the rod body 141 extends into the guide groove 1420, and the second end of the rod body 141 is slidably connected to the guide groove 1420.

[0050] In this embodiment, as Figures 3 - 6 shown, the driving member 14 is used to realize the moving adjustment of the adjusting member 13 by a power-driven method. The driving member has a rotatable cylinder body 142. For example, the cylinder body 142 can be driven to rotate by a motor. The guide groove 1420 on the outer wall of the cylinder body 142 has a preset track and contour shape. As the circumferential position of the guide groove 1420 along the outer wall of the cylinder body 142 changes, the axial position of the guide groove 1420 along the cylinder body 142 also changes. In this way, during the rotation of the cylinder body 142, the second end of the rod body 141 slidably connected to the guide groove 1420 can move axially along the cylinder body 142 under the action of the guide groove 1420. The adjusting member 13 connected to the first end of the rod body 141 will move under the drive of the rod body 141, so as to control the opening and closing of the fluid passage or the passage area of the fluid in the fluid passage. It can be seen that the driving member 14 in this embodiment converts the rotation of the cylinder body 142 into the translational motion of the rod body 141 and the adjusting member 13 by providing the guide groove 1420 on the outer wall of the cylinder body 142.

[0051] As Figure 6As shown, the guide groove 1420 on the outer wall of the column 142 can be a closed annular structure. With the unidirectional rotation of the column 142, the second end of the rod 141 slidably connected to the guide groove 1420 can reciprocate along the axial direction of the column 142; the guide groove 1420 on the outer wall of the column 142 can also be a non-closed arc structure, so that the second end of the rod 141 slidably connected to the guide groove 1420 can also reciprocate along the axial direction of the column 142 through the forward and reverse rotation of the column 142. In this embodiment, the motor driving the column 142 to rotate can be provided with a backstop to prevent the motor from rotating in the opposite direction through mechanical locking or friction resistance after the adjusting member 13 moves to the preset position, so that the adjusting member 13 can stably stay at the preset position. In some other embodiments, a check structure may also be provided for the column 142 or the rod 141. For example, the guide groove 1420 on the outer wall of the column 142 and the second end of the rod 141 may be designed to have a self-locking function. After the adjusting member 13 moves to the preset position, the friction between the second end of the rod 141 and the guide groove 1420 is self-locking, so that the friction force between the second end of the rod 141 and the guide groove 1420 is not less than the force of the second end of the rod 141 sliding down along the guide groove 1420, thereby allowing the adjusting member 13 to stably stay in the preset position.

[0052] In one embodiment of the present application, Figure 6 As shown, an inclined rod may be provided between the adjusting member 13 and the rod body 141 , one end of the inclined rod is connected to the adjusting member 13 , and the other end of the inclined rod is connected to the rod body 141 , thereby improving the supporting strength and reliability of the rod body 141 on the adjusting member 13 .

[0053] Optional, such as Figure 7 , Figure 8 As shown, in one embodiment of the present application, the second container 12 is provided with a first plate body 161 and a second plate body 162 on a side close to the first container 11, a slide groove 15 is formed between the first plate body 161 and the second plate body 162, the adjusting member 13 is a plate-shaped structure, and the adjusting member 13 is slidably connected to the slide groove 15; a third plate body 163 is also provided on the side of the second plate body 162 away from the first plate body 161, an elastic column 171 is provided between the third plate body 163 and the second plate body 162, a tube body 172 is axially penetrated by the elastic column 171, and the length of the tube body 172 is less than the length of the elastic column 171; the second plate body 162 is provided with a first end connecting member 173 connected to the first end of the tube body 172; and / or the third plate body 163 is provided with a second end connecting member 174 connected to the second end of the tube body 172.

[0054] The outer wall of the second container 12 can be made of a plate material. On the side of the second container 12 close to the first container 11, a first plate body 161 and a second plate body 162 can be provided. In this way, a reserved space can be formed between the first plate body 161 and the second plate body 162 to form a chute 15. A seal 18 can also be further provided between the first plate body 161 and the second plate body 162. In this way, the first plate body 161, the second plate body 162, and the seal 18 enclose the chute 15. In this embodiment, the first plate body 161 and the second plate body 162 can be respectively provided on both sides of the fluid passage, so that the chutes 15 are respectively formed on both sides of the fluid passage. A notch can be provided on the side wall of the first container 11 close to the second container 12. Along the notch on the side wall of the first container 11, the third plate body 163, the second plate body 162, and the first plate body 161 can form a fluid passage. Further, a flow guiding structure such as a flow guiding plate can be provided along the fluid passage to facilitate the flow of the fluid in the fluid passage.

[0055] The adjusting member 13 is a plate-like structure. For example, the adjusting member 13 can be a single plate body, or the adjusting member 13 can also include multiple plate bodies. For example, the adjusting member 13 can include a front plate body and a rear plate body stacked on top of each other. Both sides of the front plate body can slide along the chute 15. One side of the rear plate body is connected to the front plate body, and the other side of the rear plate body can be connected to the rod body 141. It can be understood that the adjusting member 13 including the front plate body and the rear plate body is beneficial to improving the structural strength of the adjusting member 13 and is also beneficial to the differential configuration of different structural parts of the adjusting member 13. For example, the front plate body can be made of wear-resistant, pressure-resistant, or corrosion-resistant materials, and the rear plate body can be made of materials with higher structural strength.

[0056] As Figure 9 、 Figure 10 shown, an elastic column 171 is provided between the third plate body 163 and the second plate body 162, which can realize the elastically adjustable connection between the third plate body 163 and the second plate body 162. Specifically, as Figure 9 、 Figure 11As shown, the elastic column 171 can be a hollow tubular structure made of rubber. In this way, the elastic column 171 can axially penetrate the tube body 172. The axial length of the tube body 172 is less than the axial length of the elastic column 171. Internal threads can be respectively provided at the first end and the second end of the tube body 172. Through holes can be formed at corresponding positions on the second plate body 162, and a first end connecting member 173 connected to the first end of the tube body 172 can be penetrated. For example, the first end connecting member 173 can be a bolt and is threadedly connected to the first end of the tube body 172. Through holes are also formed at corresponding positions on the third plate body 163, and a second end connecting member 174 connected to the second end of the tube body 172 can be penetrated. For example, the second end connecting member 174 can also be a bolt and is threadedly connected to the second end of the tube body 172. In this way, by adjusting the threaded connection length between the first end connecting member 173 and the first end of the tube body 172, and / or adjusting the threaded connection length between the second end connecting member 174 and the second end of the tube body 172, the relative distance between the second plate body 162 and the third plate body 163 can be changed, so that the compression amount of the elastic column 171 between the second plate body 162 and the third plate body 163 changes. Thus, the relative distance between the second plate body 162 and the first plate body 161 can be adjusted, that is, the groove width of the sliding groove 15 can be adjusted, so that the adjusting member 13 is adapted to the size of the sliding groove 15. The adjusting member 13 can not only smoothly slide along the sliding groove 15, but also form a good sealing effect with the sliding groove 15.

[0057] In other embodiments, through holes can also be formed at corresponding positions on the second plate body 162, and a first end connecting member 173 connected to the first end of the tube body 172 can be penetrated. For example, the first end connecting member 173 can be a bolt and is threadedly connected to the first end of the tube body 172, while the third plate body 163 is fixedly connected to the second end of the tube body 172. By adjusting the threaded connection length between the first end connecting member 173 and the first end of the tube body 172, the relative distance between the second plate body 162 and the third plate body 163 can be changed. Through holes can also be formed at corresponding positions on the third plate body 163, and a second end connecting member 174 connected to the second end of the tube body 172 can be penetrated. For example, the second end connecting member 174 can also be a bolt and is threadedly connected to the second end of the tube body 172, while the second plate body 162 is fixedly connected to the first end of the tube body 172. By adjusting the threaded connection length between the second end connecting member 174 and the second end of the tube body 172, the relative distance between the second plate body 162 and the third plate body 163 can be changed.

[0058] In an embodiment of the present application, as Figure 9 、 Figure 11As shown, the first end of the elastic column 171 and the second end of the elastic column 171 have a first outer diameter, and the portion between the first end of the elastic column 171 and the second end of the elastic column 171 has a second outer diameter, wherein the first outer diameter is greater than the second outer diameter. This design of the elastic column 171 allows the first end of the elastic column 171 and the second end of the elastic column 171 to have a larger force contact area with the second plate 162 and the third plate 163, respectively, which is conducive to improving the stability of the supporting connection.

[0059] There may be multiple elastic columns 171, for example more than two, arranged between the third plate body 163 and the second plate body 162. The multiple elastic columns 171 located between the third plate body 163 and the second plate body 162 are arranged along the length direction of the slide groove 15, so that the groove width of the slide groove 15 at different local positions along the length direction can be adjusted to avoid local jamming, thereby improving the ability to adjust the sliding connection performance and sealing performance between the adjustment member 13 and the slide groove 15.

[0060] Optional, such as Figure 12 As shown, in one embodiment of the present application, a pin 1611 is provided on the first plate 161, and a rolling body 1612 is sleeved on the pin 1611, and the rolling body 1612 can roll in contact with the adjusting member 13; in this embodiment, the pin 1611 and the rolling body 1612 on the first plate 161 can be arranged according to the specific configuration of the adjusting member 13 and the slide 15. For example, the rolling body 1612 can be arranged to roll in contact with the side of the adjusting member 13 away from the second plate 162, or the rolling body 1612 can be arranged to roll in contact with the side of the adjusting member 13 facing the bottom of the slide 15. The number of the pin 1611 and the corresponding rolling body 1612 arranged on the first plate 161 can be multiple, for example, more than two, and the multiple pins 1611 and the rolling body 1612 correspondingly sleeved on each pin 1611 can be arranged along the length direction of the slide 15, so that the adjusting member 13 can slide flexibly along the slide 15.

[0061] Optionally, in one embodiment of the present application, the first plate body 161 is provided with a seal 18 on one side close to the second plate body 162; and / or the second plate body 162 is provided with a seal 18 on one side close to the first plate body 161. The seal 18 may be connected to the second plate body 162, or may be connected to the first plate body 161. The seal 18 may be made of rubber, for example, the seal 18 may be a plate-like structure connected to the second plate body 162, so that a seal is formed between the adjusting member 13 and the second plate body 162. Alternatively, the seal 18 may be an L-shaped structure connected to the second plate body 162, so that a seal can be formed between the adjusting member 13 and the second plate body 162, and a seal can also be formed between the adjusting member 13 and the bottom of the slide groove 15.

[0062] Optionally, in an embodiment of the present application, as Figure 4 , Figure 5 shown, the bottom of the first container 11 is funnel-shaped; specifically, the first container 11 can be a metering hopper with metering function, which can monitor parameters such as the mass or volume of the stored fluid. The funnel-shaped bottom is conducive to setting the liquid outlet part, facilitating the discharge of the fluid from the first container 11.

[0063] Optionally, in an embodiment of the present application, the first container 11 is provided with a vent 110; as Figure 4 shown, the setting of the vent 110 is conducive to injecting fluid into the first container 11 or discharging fluid from the first container 11. For example, when injecting fluid into the first container 11, the gas in the first container 11 can be discharged through the vent 110. When discharging fluid from the first container 11, the gas outside the first container 11 can enter the first container 11 through the vent 110, so that the air pressure on the liquid surface in the first container 11 remains constant, avoiding the influence of the change of air pressure in the first container 11 on the injection or discharge of the fluid during the process of injecting fluid into or discharging fluid from the first container 11.

[0064] Optionally, in an embodiment of the present application, the first container 11 is provided with a metering member 111 to detect the storage amount of the fluid in the first container 11; as Figure 4 shown, the metering member 111 can be a pressure sensor arranged on the supporting part of the first container 11. According to the pressure change of the supporting part of the first container 11, the storage amount of the fluid in the first container 11 is calculated. When the metering member 111 detects that the storage amount of the fluid in the first container 11 reaches the preset value, the second end of the movable liquid inlet pipe 113 is moved, so that the second end of the liquid inlet pipe 113 is switched from the position above the liquid inlet 112 to the position above the liquid return part. When the second end of the liquid inlet pipe 113 is switched to the position above the liquid return part, the fluid flowing out from the second end of the liquid inlet pipe 113 no longer flows into the liquid inlet 112 and the first container 11, but flows back to the liquid storage device 20 through the liquid return part via the liquid return flow path 40.

[0065] Optionally, in an embodiment of the present application, as Figure 4 shown, the liquid outlet part of the first container 11 includes a liquid outlet 114 arranged at the bottom of the first container 11. In this embodiment, a third regulating valve 116 can be arranged at the liquid outlet 114 and connected to the liquid outlet pipe 115 to form a distribution flow path 50 for supplying fluid to the liquid-using equipment. At least part of the liquid outlet pipe 115 is a flexible pipe to reduce the impact of the fluid and facilitate the connection of the liquid outlet pipe 115 with other pipes.

[0066] Optionally, in an embodiment of the present application, as Figure 4As shown, the second container 12 is provided with a liquid outlet 120; and / or the second container 12 is provided with an avoidance groove 121 along the moving direction of the adjusting member 13. The liquid outlet 120 of the second container 12 can be connected to the liquid return flow path 40, so that the fluid in the second container 12 can also flow back to the fluid supply device through the liquid return flow path 40. In the embodiment of the present application, as Figure 7 As shown, the second container 12 is provided with an avoidance groove 121 along the moving direction of the adjusting member 13, which can form an avoidance space for the driving member 14, facilitating the full utilization of the space structure of the device and reducing the structural volume. For example, the rod body 141 of the driving member 14 can pass through the avoidance groove 121, so that the first end of the rod body 141 is connected to the adjusting member 13 and drives the adjusting member 13 to move.

[0067] Optionally, in an embodiment of the present application, as Figure 3 、 Figure 4 As shown, the liquid supply device 10 further includes a support seat 191. The first container 11 is arranged on the support seat 191. The support seat 191 is further connected with a bracket 192, and the driving member 14 is arranged on the bracket 192. The support seat 191 and the bracket 192 can be made of channel steel, etc. Among them, the support seat 191 can be a rectangular frame structure, and the first container 11 can be fixedly arranged through the rectangular frame. The bottom of the bracket 192 is connected to the support seat 191, the top of the bracket 192 can be connected to the top of the first container 11, and the driving member 14 can be fixedly suspended on the bracket 192.

[0068] In the above fluid supply system of the present application, during use, the fluid in the liquid storage device 20, such as water, etc., can enter from the first end of the liquid inlet pipe 113 configured in the first container 11 of the liquid supply device 10 through the liquid supply flow path 30, and flow into the first container 11 from the second end of the liquid inlet pipe 113 through the liquid inlet 112. When the metering member 111 detects that the storage amount of the fluid in the first container 11 reaches the preset value, the second end of the liquid inlet pipe 113 can be moved, so that the second end of the liquid inlet pipe 113 is switched from the position above the liquid inlet 112 to the position above the liquid return part. In this way, the fluid flowing out from the second end of the liquid inlet pipe 113 no longer flows into the first container 11 from the liquid inlet 112, but flows back to the liquid storage device 20 from the liquid return part through the liquid return flow path 40. In this way, the delivery pump of the liquid supply flow path 30 can always be turned on and in a working state, avoiding its frequent opening and closing from damaging the motor or causing a water hammer effect, and the components of the liquid supply flow path 30 can be simplified. For example, by adopting the fluid supply system of this embodiment, compared with the traditional liquid supply method, the slow-closing check valve 351, water hammer absorber 352, electric ball valve 331, metal hose, rubber shock absorber, pneumatic butterfly valve, etc. in the liquid supply flow path 30 for supplying liquid to the first container 11 can be cancelled, which is beneficial to reducing the equipment cost and improving the working reliability and working life of the liquid supply flow path 30.

[0069] When the fluid in the first container 11 of the liquid supply device 10, such as water, meets the quality or weight requirements, the third regulating valve 116, such as a butterfly valve, provided at the liquid outlet position at the bottom of the first container 11 can be opened, so that the fluid in the first container 11 flows into the mixer through the distribution flow path 50. Since the mixer often needs a certain amount of time to stir a batch of materials, such as coal ash, coal gangue, cement, water, etc., evenly, by using the fluid supply system of the present application, the adjusting member 13 provided in the fluid passage between the first container 11 and the second container 12 can be movably opened, so that the excess fluid stored in the first container 11 can flow into the second container 12 through the fluid passage. The fluid flowing into the second container 12 can flow back to the liquid storage device 20 from the liquid outlet 120 of the second container 12 through the liquid return flow path 40, so that the fluid in the second container 12 can be recycled. Through the above method, the mixer can work intermittently and cyclically to achieve the purpose of constant liquid supply and uniform stirring.

[0070] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. Among them, "fixed connection" means that the two are connected and the relative position relationship after connection remains unchanged. The orientation terms mentioned in the embodiments of the present application, such as "upper", "lower", "inner", "outer", etc., are only with reference to the direction of the accompanying drawings. Therefore, the orientation terms used are for better and clearer description and understanding of the embodiments of the present application, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the embodiments of the present application. "Plurality" means at least two.

[0071] In the embodiments of the present application, the terms "first", "second", "third", and "fourth" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", "third", and "fourth" may explicitly or implicitly include one or more of such features.

[0072] In the embodiments of the present application, "and / or" is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this article generally represents an "or" relationship between the front and back associated objects.

[0073] References to "one embodiment" or "some embodiments" or the like described in this specification mean that a particular feature, structure, or characteristic described in connection with that embodiment is included in one or more embodiments of the present application. Thus, statements such as "in one embodiment", "in some embodiments", "in some other embodiments", "in another embodiment", etc., which appear in different places in this specification, do not necessarily all refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized. The terms "comprising", "including", "having" and their variants all mean "including but not limited to", unless otherwise specifically emphasized.

[0074] The above has described in detail the embodiments of the present application. Those skilled in the art can design and modify the device and its usage mode within the scope of the present application according to the on-site construction situation.

[0075] Each embodiment in this specification is described in a related manner. For the same or similar parts among the embodiments, reference can be made to each other. Each embodiment focuses on the differences from other embodiments.

[0076] The above is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present application should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A fluid supply system, characterized in that, include: Liquid storage device, liquid supply device; A liquid supply flow path is provided between the liquid storage device and the liquid supply device, for conveying fluid from the liquid storage device to the liquid supply device; A liquid return path is also provided between the liquid supply device and the liquid storage device, for conveying fluid from the liquid supply device to the liquid storage device; The liquid supply device is provided with a liquid inlet portion connected to the liquid supply flow path, and the liquid supply device is also provided with a liquid return portion connected to the liquid return flow path; the liquid inlet portion can be connected to the liquid return portion.

2. The fluid supply system according to claim 1, wherein The liquid inlet portion includes a liquid inlet pipe, and the liquid supply device is provided with a liquid inlet; The first end of the liquid inlet pipe is connected to the liquid supply flow path, the second end of the liquid inlet pipe can be connected to the liquid inlet, and the second end of the liquid inlet pipe can be connected to the liquid return part.

3. The fluid supply system according to claim 2, wherein The liquid supply device is provided with a position change mechanism, and the position change mechanism is used to drive the second end of the liquid inlet pipe to the first station or the second station; At the first station, the second end of the liquid inlet pipe is connected to the liquid inlet port, and at the second station, the second end of the liquid inlet pipe is connected to the liquid return portion.

4. The fluid supply system according to claim 1, wherein The liquid supply flow path includes a first flow path, a first end of the first flow path is connected to the liquid storage device, a second end of the first flow path is connected to the liquid inlet of the liquid supply device, and the first flow path is sequentially provided with a first soft connector, a first delivery pump, a first check valve, and a first regulating valve in series along the delivery direction of the fluid; and / or The liquid supply flow path includes a second flow path, a first end of the second flow path is connected to the liquid storage device, a second end of the second flow path is connected to the liquid inlet of the liquid supply device, and the second flow path is sequentially arranged in series along the fluid delivery direction with a second soft connector, a second delivery pump, a second check valve, and a second regulating valve.

5. The fluid supply system according to claim 1, wherein It also includes a distribution flow path; the liquid supply device is provided with a liquid outlet, and the first end of the distribution flow path is connected to the liquid outlet; the distribution flow path is sequentially and serially provided with a third regulating valve and a third delivery pump along the delivery direction of the fluid.

6. The fluid supply system according to claim 4, wherein The liquid supply flow path further includes a third flow path, the second end of the first flow path and / or the second end of the second flow path are respectively connected to the first end of the third flow path, and the second end of the third flow path is connected to the liquid inlet of the liquid supply device; and / or The liquid supply flow path also includes a fourth flow path, the second end of the first flow path and / or the second end of the second flow path are respectively connected to the first end of the fourth flow path, and the fourth flow path is sequentially provided with a reducer and a fourth regulating valve in series along the fluid delivery direction.

7. The fluid supply system according to claim 6, characterized in that, The liquid supply flow path also includes an intermediate flow path, and the second end of the first flow path and / or the second end of the second flow path are respectively connected to the first end of the intermediate flow path; the first end of the third flow path and / or the first end of the fourth flow path are respectively connected to the second end of the intermediate flow path; the intermediate flow path is provided with a pressure monitoring device.

8. The fluid supply system according to claim 1, wherein The liquid supply device comprises: a first container, wherein the first container is provided with the liquid inlet portion and the liquid return portion; a second container; the second container is connected to the first container, and a fluid channel is provided between the second container and the first container; an adjusting member, the adjusting member being movably disposed in the fluid channel to adjust the fluid in the first container to flow into the second container through the fluid channel; A driving member, the driving member is used to drive the adjusting member to move to a preset position, the driving member includes a rod body and a rotatable column, the outer wall of the column is provided with a guide groove, the first end of the rod body is connected to the adjusting member, the second end of the rod body extends into the guide groove, and the second end of the rod body is slidably connected to the guide groove.

9. The fluid supply system according to claim 8, characterized in that, The second container is provided with a first plate body and a second plate body on a side close to the first container, a slide groove is formed between the first plate body and the second plate body, the adjustment member is a plate-shaped structure, and the adjustment member is slidably connected to the slide groove; A third plate body is further provided on the side of the second plate body away from the first plate body, an elastic column is provided between the third plate body and the second plate body, a tube body is axially passed through the elastic column, and the length of the tube body is less than the length of the elastic column; The second plate body is provided with a first end connecting piece connected to the first end of the tube body; and / or the third plate body is provided with a second end connecting piece connected to the second end of the tube body.

10. The fluid supply system according to claim 9, wherein, The first plate body is provided with a pin shaft, the pin shaft is sleeved with a rolling body, and the rolling body can be in rolling contact with the adjusting member; and / or The first plate body is provided with a sealing member on a side close to the second plate body; and / or The second plate body is provided with a sealing member on a side close to the first plate body.

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