CN117028609A - Crystallization-preventing liquid injection pump valve - Google Patents
Crystallization-preventing liquid injection pump valve Download PDFInfo
- Publication number
- CN117028609A CN117028609A CN202310811230.5A CN202310811230A CN117028609A CN 117028609 A CN117028609 A CN 117028609A CN 202310811230 A CN202310811230 A CN 202310811230A CN 117028609 A CN117028609 A CN 117028609A
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- Prior art keywords
- valve
- seat
- pump
- outlet
- inlet
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- 239000007788 liquid Substances 0.000 title claims abstract description 73
- 238000002347 injection Methods 0.000 title claims abstract description 58
- 239000007924 injection Substances 0.000 title claims abstract description 58
- 238000007789 sealing Methods 0.000 claims abstract description 34
- 238000002425 crystallisation Methods 0.000 claims abstract description 12
- 230000008025 crystallization Effects 0.000 claims description 7
- 238000005213 imbibition Methods 0.000 claims 1
- 238000001802 infusion Methods 0.000 claims 1
- 230000007306 turnover Effects 0.000 claims 1
- 239000003792 electrolyte Substances 0.000 abstract description 14
- 239000000919 ceramic Substances 0.000 description 15
- 238000005260 corrosion Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 3
- 229910052744 lithium Inorganic materials 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000004809 Teflon Substances 0.000 description 2
- 229920006362 Teflon® Polymers 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/04—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having cylindrical surfaces; Packings therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B15/00—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts
- F04B15/04—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts the fluids being hot or corrosive
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/10—Valves; Arrangement of valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/10—Valves; Arrangement of valves
- F04B53/1087—Valve seats
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/16—Actuating devices; Operating means; Releasing devices actuated by fluid with a mechanism, other than pulling-or pushing-rod, between fluid motor and closure member
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/04—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having cylindrical surfaces; Packings therefor
- F16K5/0407—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having cylindrical surfaces; Packings therefor with particular plug arrangements, e.g. particular shape or built-in means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/04—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having cylindrical surfaces; Packings therefor
- F16K5/0442—Spindles and actuating means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/04—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having cylindrical surfaces; Packings therefor
- F16K5/0457—Packings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/04—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having cylindrical surfaces; Packings therefor
- F16K5/0457—Packings
- F16K5/0471—Packings between housing and plug
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/60—Arrangements or processes for filling or topping-up with liquids; Arrangements or processes for draining liquids from casings
- H01M50/609—Arrangements or processes for filling with liquid, e.g. electrolytes
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Filling, Topping-Up Batteries (AREA)
Abstract
The invention provides an anti-crystallization liquid injection pump valve, which comprises a hollow valve seat, a valve sleeve and a valve core, wherein the valve seat is connected with a medium inlet pipe and a medium outlet pipe, the valve sleeve is fixed in a hollow structure of the valve seat, a connecting port for medium to enter and exit, an inlet communicated with the medium inlet pipe and an outlet communicated with the medium outlet pipe are formed in the valve sleeve, the valve core is accommodated in the valve sleeve, and when a battery is injected, the valve core can rotate in the valve sleeve, so that the connecting port is communicated with the inlet or the outlet, and liquid suction through the medium inlet pipe or liquid injection through the medium outlet pipe is realized, so that the battery injection is completed. The invention adopts the valve core to rotate the mechanical valve, does not need a dynamic sealing ring, is not easy to generate bubbles when the valve is switched, is not easy to crystallize when the electrolyte is isolated from air, and has good tightness.
Description
[ field of technology ]
The invention relates to the technical field of liquid injection, in particular to an anti-crystallization liquid injection pump valve.
[ background Art ]
In the process of liquid injection production of lithium batteries, electrolyte needs to be injected into the lithium batteries. At present, the existing liquid injection device needs a dynamic sealing ring by adopting the processes of sleeve-cup type one-time liquid injection or two-time liquid injection and the like, and the electrolyte has strong corrosiveness, is easy to solidify and crystallize, causes the phenomenon that the sealing ring of the common one-way valve is damaged, and has poor sealing property.
In view of the foregoing, it is desirable to provide a novel crystallization-preventing pump valve for liquid injection that overcomes the above-mentioned drawbacks.
[ invention ]
The invention aims to provide an anti-crystallization liquid injection pump valve, which adopts a valve core to rotate a mechanical valve, does not need a dynamic sealing ring, is not easy to generate bubbles when the valve is switched, is not easy to crystallize when electrolyte is isolated from air, and has good sealing property.
In order to achieve the above object, the invention provides an anti-crystallization liquid injection pump valve, comprising a hollow valve seat, a valve sleeve and a valve core, wherein the valve seat is connected with a medium inlet pipe and a medium outlet pipe, the valve sleeve is fixed in a hollow structure of the valve seat, the valve sleeve is provided with a connecting port for medium to enter and exit, an inlet communicated with the medium inlet pipe and an outlet communicated with the medium outlet pipe, the valve core is accommodated in the valve sleeve, the valve core can rotate in the valve sleeve, and the connecting port is communicated with the inlet or the outlet so as to realize liquid suction through the medium inlet pipe or liquid injection through the medium outlet pipe.
In a preferred embodiment, the valve seat is provided with an inlet fixing seat and an outlet fixing seat; the medium inlet pipe is inserted and fixed in the inlet fixing seat, one end of the inlet fixing seat is embedded into the valve seat and abuts against the valve sleeve, an inlet sealing ring is arranged between one end of the inlet fixing seat embedded into the valve seat and the valve sleeve, and the inlet sealing ring is arranged around the inlet; the medium outlet pipe is inserted and fixed in the outlet fixing seat, one end of the outlet fixing seat is embedded into the valve seat and abuts against the valve sleeve, an outlet sealing ring is arranged between one end of the outlet fixing seat embedded into the valve seat and the valve sleeve, and the outlet sealing ring is arranged around the outlet.
In a preferred embodiment, the valve element is notched, and the valve element rotates within the valve housing such that the notch is positioned opposite the inlet or outlet, thereby placing the connection port in communication with the inlet or outlet.
In a preferred embodiment, a connecting seat is fixed at one end of the valve core, the connecting seat is located at one side of the valve seat, and the connecting seat seals the hollow structure of the valve seat.
In a preferred embodiment, a rotary arm is fixed on one side of the connecting seat away from the valve seat, and is connected with a valve driving piece, and the valve driving piece drives the rotary arm and drives the valve core to rotate.
In a preferred embodiment, the connecting seat is sleeved with an adjusting seat, one end of the connecting seat, which is close to the valve core, is provided with a flange, and the adjusting seat abuts against the flange through a spring piece.
In a preferred embodiment, the valve core is sleeved with a first O-shaped ring, the first O-shaped ring is abutted against the valve sleeve and the valve seat, the valve sleeve is sleeved with a second O-shaped ring, and the second O-shaped ring is located between the valve sleeve and the valve seat.
In a preferred embodiment, the pump further comprises a pump body assembly, wherein the pump body assembly comprises a pump shell and a pump core, the pump shell is provided with a containing cavity, the pump core is movably contained in the containing cavity, the pump shell is fixed on one side of the valve seat, and the connecting port is communicated with the containing cavity; the pump core can move in the pump shell in a direction away from the valve seat to enable working medium to be sucked into the accommodating cavity through the medium inlet pipe, and the pump core can also move in the pump shell in a direction close to the valve seat to enable the working medium in the accommodating cavity to be pushed out through the medium outlet pipe.
In a preferred embodiment, a pump body inlet and a pump body outlet are formed in one end, close to the valve seat, of the pump shell, and the connecting port is communicated with the accommodating cavity through the pump body inlet and the pump body outlet.
In a preferred embodiment, the valve spool rotates at an angle of 45 degrees.
Compared with the prior art, the crystallization-preventing liquid injection pump valve comprises a hollow valve seat, a valve sleeve and a valve core, wherein the valve seat is connected with a medium inlet pipe and a medium outlet pipe, the valve sleeve is fixed in a hollow structure of the valve seat, a connecting port for medium to enter and exit, an inlet communicated with the medium inlet pipe and an outlet communicated with the medium outlet pipe are formed in the valve sleeve, the valve core is accommodated in the valve sleeve, when the battery is injected, the valve core can rotate in the valve sleeve, so that the connecting port is communicated with the inlet or the outlet, liquid suction through the medium inlet pipe or liquid injection through the medium outlet pipe is realized, the battery is injected, a mechanical valve is adopted by adopting the valve core, a dynamic sealing ring is not needed, bubbles are not easy to generate when the valve is switched, electrolyte is isolated from air and is not easy to crystallize, and the sealing performance is good.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a perspective view of an anti-crystallization liquid injection pump valve according to an embodiment of the present invention;
FIG. 2 is a plan view of a pump valve for preventing crystallization according to an embodiment of the present invention;
FIG. 3 is a cross-sectional view taken along the direction I-I of FIG. 2;
FIG. 4 is a cross-sectional view taken along the H-H direction of FIG. 2;
FIG. 5 is a perspective view of a crystallization-preventing liquid injection pump valve according to another embodiment of the present invention;
FIG. 6 is a plan view of a pump valve for preventing crystallization according to still another embodiment of the present invention;
fig. 7 is a sectional view in the direction E-E of fig. 6.
[ detailed description ] of the invention
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by a person skilled in the art without making any inventive effort, are intended to be within the scope of the present invention.
Referring to fig. 1, the crystallization-preventing liquid injection pump valve 100 provided by the present invention can be used for injecting liquid into an energy storage lithium battery. Referring to fig. 2 to 4, the crystallization-preventing injection pump valve 100 includes a hollow valve seat 10, a valve housing 20, and a valve core 30.
The valve seat 10 is connected with a medium inlet pipe 11 and a medium outlet pipe 12, the valve sleeve 20 is fixed in a hollow structure of the valve seat 10, the valve sleeve 20 is provided with a connecting port 201 for medium to enter and exit, an inlet 202 communicated with the medium inlet pipe 11 and an outlet 203 communicated with the medium outlet pipe 12, and the valve core 30 is accommodated in the valve sleeve 20. Specifically, the valve core 30 can rotate in the valve housing 20, so that the connection port 201 communicates with the inlet 202 or the outlet 203, and liquid suction through the medium inlet pipe 11 or liquid injection through the medium outlet pipe 12 is realized.
As can be appreciated, when the battery is filled, first, the valve core 30 is rotated in the valve housing 20 to communicate the connection port 201 with the inlet 202, so as to realize the liquid suction through the medium inlet pipe 11, and complete the liquid suction; secondly, the valve core 30 rotates in the valve sleeve 20, so that the connection port 201 is communicated with the outlet 203, and further the injection of liquid through the medium outlet pipe 12 is realized, namely, a valve core rotating mechanical valve is adopted, a dynamic sealing ring is not needed, bubbles are not easy to generate during valve switching, electrolyte is isolated from air, crystallization is not easy to occur, and the sealing performance is good.
Therefore, the crystallization-preventing liquid injection pump valve 100 provided by the invention comprises a hollow valve seat 10, a valve sleeve 20 and a valve core 30, wherein the valve seat 10 is connected with a medium inlet pipe 11 and a medium outlet pipe 12, the valve sleeve 20 is fixed in the hollow structure of the valve seat 10, the valve sleeve 20 is provided with a connecting port 201 for medium to enter and exit, an inlet 202 communicated with the medium inlet pipe 11 and an outlet 203 communicated with the medium outlet pipe 12, the valve core 30 is accommodated in the valve sleeve 20, when the battery is injected, the valve core 30 can rotate in the valve sleeve 20, so that the connecting port 201 is communicated with the inlet 202 or the outlet 203, liquid is absorbed through the medium inlet pipe 11 or injected through the medium outlet pipe 12, so that battery injection is completed, a valve core rotating mechanical valve is adopted, a dynamic sealing ring is not needed, bubbles are not easy to generate when the valve is switched, electrolyte is isolated from air, crystallization is not easy, and the sealing performance is good.
Further, the valve body 30 is provided with a notch 301, and the valve body 30 can rotate in the valve housing 20 so that the notch 301 is opposite to the inlet 202 or the outlet 203, and the connection port 201 is in communication with the inlet 202 or the outlet 203. It will be appreciated that the valve core 30 may be connected to a valve driving member, and when the valve core 30 is driven by the valve driving member to rotate so that the notch 301 of the valve core 30 is opposite to the position of the inlet 202, that is, the connection port 201 is communicated with the inlet 202, that is, the medium inlet pipe 33 is communicated, and the working medium may be sucked through the medium inlet pipe 11 and the connection port 201, for example, may be sucked into a pump body connected to the valve seat 10, so as to realize suction; when the valve driving member drives the valve core 30 to rotate so that the notch 301 of the valve core 30 is opposite to the position of the outlet 203, that is, the connection port 201 is communicated with the outlet 203, that is, the medium outlet pipe 12 is communicated, the working medium can be extruded from the pump body through the connection port 201 and the medium outlet pipe 12, so as to realize liquid injection. The crystallization-preventing liquid injection pump valve is a mechanical rotary valve, an external one-way valve is not needed, the rotation angle of the valve core is 45 degrees, the valve is switched to be bubble-free through the structural cooperation of the valve core and the valve sleeve, the sealing performance is good, and the crystallization of electrolyte can be prevented. The valve sleeve 20 and the valve core 30 are made of ceramic materials, and the ceramic rotary valve is corrosion-resistant and reliable and durable.
The valve seat 10 is provided with an inlet fixing seat 13 and an outlet fixing seat 14; the medium inlet pipe 11 is inserted and fixed in the inlet fixing seat 13, one end of the inlet fixing seat 13 is embedded into the valve seat 10 and abuts against the valve sleeve 20, an inlet sealing ring 15 is arranged between one end of the inlet fixing seat 13 embedded into the valve seat 10 and the valve sleeve 20, and the inlet sealing ring 15 is arranged around the inlet 202. The medium outlet pipe 12 is inserted and fixed in the outlet fixing seat 14, one end of the outlet fixing seat 14 is embedded into the valve seat 10 and abuts against the valve sleeve 20, an outlet sealing ring 16 is arranged between one end of the outlet fixing seat 14 embedded into the valve seat 10 and the valve sleeve 20, and the outlet sealing ring 16 is arranged around the outlet. It can be understood that the liquid outlet port can be ensured to be sealed with the ceramic valve sleeve by using the liquid outlet port sealing ring, the liquid inlet port can be ensured to be sealed with the ceramic valve sleeve by using the liquid inlet port sealing ring, a dynamic sealing ring is not needed, and the sealing property of the valve is improved.
One end of the valve core 30 is fixed with a connecting seat 31, the connecting seat 31 is located at one side of the valve seat 10, and the connecting seat 31 seals the hollow structure of the valve seat 10. In this embodiment, a rotating arm 32 is fixed on a side of the connecting seat 31 away from the valve seat 10, and the rotating arm 32 is connected with a valve driving member, where the valve driving member drives the rotating arm 32 and drives the valve core 30 to rotate, and the valve driving member may be, but is not limited to, an air cylinder, for example, the air cylinder may receive a control signal of an electromagnetic valve, and further drive the valve core 30 to rotate in the valve sleeve 20, so as to realize automatic liquid suction and liquid injection.
Further, an adjusting seat 33 is sleeved outside the connecting seat 31, a flange 311 is arranged at one end of the connecting seat 31 close to the valve core 30, and the adjusting seat 33 abuts against the flange 311 through a spring piece 34. In this embodiment, a gasket 35 is disposed on one side of the flange 311 near the valve core 30, two gaskets 35 are disposed on two sides of the valve core 30, and the two gaskets 35 are clamped between the valve seat 10 and the connection seat 31, the gasket 35 may be a teflon gasket, the two gaskets 35 may limit the movement and dislocation of the valve core, the adjustment seat 33 may movably compress or release the elastic sheet 34 to adjust the movable gap between the teflon gasket and the ceramic valve core, and after adjusting to a proper gap, the valve seat 10 and the adjustment seat 33 may be locked by a locking screw 36, so as to further ensure the reliability of the valve movement.
The valve core 30 is sleeved with a first O-shaped ring 37, the first O-shaped ring 37 abuts against the valve sleeve 20 and the valve seat 10, the valve sleeve 20 is sleeved with a second O-shaped ring 38, and the second O-shaped ring 38 is located between the valve sleeve 20 and the valve seat 10. The first O-shaped ring 37 and the second O-shaped ring 38 can ensure that the inside of the valve core is isolated from outside air, ensure that no air enters the valve core to generate bubbles when the internal valve is switched, and prevent electrolyte from contacting with water in the air to crystallize.
Referring to fig. 5 and 6 together, in another embodiment, the crystallization-preventing pump valve 100 further includes a pump body assembly 40, the pump body assembly 40 includes a pump housing 41 and a pump core 42, the pump housing 41 has a housing cavity 411, and the pump core 42 is movably housed in the housing cavity 411. Specifically, the pump housing 41 is fixed on one side of the valve seat 10, and the connection port 201 communicates with the accommodating cavity 411; the pump core 42 can move in the pump case 41 in a direction away from the valve seat 10 to enable the working medium to be sucked into the accommodating cavity 411 through the medium inlet pipe 11, the pump core 42 can also move in the pump case 41 in a direction close to the valve seat 10 to enable the working medium in the accommodating cavity 411 to be pushed out through the medium outlet pipe 12, liquid suction and liquid injection are completed, and thus, the repeated movement can realize continuous liquid injection and high liquid injection efficiency.
Specifically, the pump casing 41 is substantially rectangular, and the shape and size of the accommodating cavity 411 formed in the pump casing 41 are substantially consistent with those of the pump core 42, so that the pump casing 41 and the pump core 42 form a linear plunger structure, the pump body with the piston structure has large liquid injection amount in one mechanical movement, high liquid injection efficiency in one time, accurate liquid injection amount and convenient regular maintenance. In the present embodiment, the pump casing 41 and the pump core 42 are high wear-resistant ceramic pump casing cores, and have the advantages of corrosion resistance, reliability, durability and long service life. In this embodiment, the pump housing 41 is provided with a pump body inlet and outlet 412 near one end of the valve seat 10, the connection port 201 is communicated with the accommodating cavity 411 through the pump body inlet and outlet 412, an inlet and outlet sealing ring 413 is arranged around the outside of the pump body inlet and outlet 412, the inlet and outlet sealing ring 413 can further ensure the tightness of the connection between the valve seat 10 and the pump housing 41, air is prevented from entering the valve housing and the valve core, and electrolyte crystallization is prevented.
In this embodiment, the valve driving part 310 is fixed on one side of the pump housing 41, and the valve driving part 310 can drive the rotating arm 32 to move, so as to drive the valve core 30 to rotate in the valve housing 20, so as to switch the inlet and the outlet. The invention adopts the cylinder to drive the ceramic valve core to rotate the mechanical valve system, and the opening and closing of the inlet are switched by the rotation angles of the cylinder to drive the valve core and the rotating arm, so that the phenomenon that the check valve type liquid injection pump is easy to generate bubbles is avoided, and the reliability of actual use is ensured.
The crystallization-preventing liquid injection pump valve 100 provided by the invention can be externally connected with a PLC (programmable logic controller), can automatically set the liquid injection amount and the liquid injection speed, can automatically control the liquid injection amount according to the electrolyte difference value on a weighing machine type, has the function of automatically adjusting the liquid injection amount, meets the batteries with different capacity types, and can correct the error value of primary liquid injection through automatic compensation during secondary liquid injection, thereby further improving the liquid injection precision.
The crystallization-preventing liquid injection pump valve 100 provided by the invention is characterized in that when in practical application, equipment is initialized: the ceramic pump core is pushed out to extend into the pump shell cavity, and the air cylinder is pushed out to enable the medium inlet pipe to be communicated with the pump shell cavity; the equipment works: the servo motor is used for driving the ceramic pump core to retract, and working medium is sucked into the closed pump shell cavity from the medium inlet pipe to finish liquid suction; after the ceramic pump core is retracted in the direction of the motor, the electromagnetic valve is operated to control the cylinder to retract and pull the rotating arm to rotate the switching valve core, the medium outlet pipe is communicated with the inside of the pump shell cavity, the servo motor is driven to enable the ceramic pump core to extend forwards, the ceramic pump core is pushed inwards to reduce the volume in the pump shell cavity so that liquid flows out through the medium outlet pipe, and liquid injection is completed. It can be understood that after that, the electromagnetic valve work control cylinder stretches out to push the rotating arm to rotate the switching valve core, so that the medium inlet pipe and the pump shell cavity are communicated back to the original equipment, and the circulating motion achieves the continuous liquid injection function.
In summary, the crystallization-preventing liquid injection pump valve 100 provided by the invention has the advantages that the ceramic valve core rotary mechanical valve is switched without bubbles, the sealing performance is good, the electrolyte is isolated from air and is not easy to crystallize, a dynamic sealing ring is not needed, the service life is long, the flow is larger than that of a precise diaphragm valve, the liquid injection efficiency is high, and the periodic maintenance is convenient. The mechanical seal structure has the advantages of high liquid injection precision, wide applicability, pollution resistance, corrosion resistance, simple and convenient maintenance, the multilayer seal structure prevents electrolyte from crystallizing, the maintenance is easy, the valve casing is made of stainless steel materials, the valve body is made of ceramic mechanical seal components, the ceramic wear-resistant corrosion-resistant sealing performance is good, and the reliability and the service life of practical use are ensured. The invention specially designs a ceramic rotary valve for preventing electrolyte from crystallizing, and the valve core connecting rod is driven by a cylinder to rotate to switch the closing of the inlet and the outlet, so that the phenomenon that a one-way valve type liquid injection pump is easy to generate bubbles is avoided, and the reliability of practical use is ensured.
The foregoing description is only of embodiments of the present invention, and is not intended to limit the scope of the invention, and all equivalent structures or equivalent processes using the descriptions and the drawings of the present invention or directly or indirectly applied to other related technical fields are included in the scope of the present invention.
Claims (10)
1. The utility model provides a prevent crystallization annotate liquid pump valve which characterized in that, includes hollow disk seat, valve pocket and case, the disk seat is connected with medium inlet tube and medium outlet tube, the valve pocket is fixed in the hollow structure of disk seat, the valve pocket has seted up the connector that is used for medium business turn over, with the entry of medium inlet tube intercommunication and with the export of medium outlet tube intercommunication, the case is acceptd in the valve pocket, the case can rotate in the valve pocket, makes the connector with entry or export intercommunication and then realize through medium inlet tube imbibition or through medium outlet tube annotate liquid.
2. The crystallization-preventing liquid injection pump valve according to claim 1, wherein the valve seat is provided with an inlet fixing seat and an outlet fixing seat; the medium inlet pipe is inserted and fixed in the inlet fixing seat, one end of the inlet fixing seat is embedded into the valve seat and abuts against the valve sleeve, an inlet sealing ring is arranged between one end of the inlet fixing seat embedded into the valve seat and the valve sleeve, and the inlet sealing ring is arranged around the inlet; the medium outlet pipe is inserted and fixed in the outlet fixing seat, one end of the outlet fixing seat is embedded into the valve seat and abuts against the valve sleeve, an outlet sealing ring is arranged between one end of the outlet fixing seat embedded into the valve seat and the valve sleeve, and the outlet sealing ring is arranged around the outlet.
3. The crystallization-preventing infusion pump valve according to claim 1, wherein the valve core is notched, and the valve core rotates within the valve housing such that the notch is opposite to the inlet or outlet, thereby communicating the connection port with the inlet or outlet.
4. The crystallization-preventing liquid injection pump valve according to claim 1, wherein a connecting seat is fixed at one end of the valve core, the connecting seat is located at one side of the valve seat, and the connecting seat seals the hollow structure of the valve seat.
5. The crystallization-preventing liquid injection pump valve according to claim 4, wherein a rotary arm is fixed on one side of the connecting seat away from the valve seat, the rotary arm is connected with a valve driving piece, and the valve driving piece drives the rotary arm and drives the valve core to rotate.
6. The crystallization-preventing liquid injection pump valve according to claim 4, wherein the connecting seat is sleeved with an adjusting seat, a flange is arranged at one end, close to the valve core, of the connecting seat, and the adjusting seat abuts against the flange through a spring piece.
7. The crystallization-preventing liquid injection pump valve of claim 1, wherein the valve core is sleeved with a first O-ring, the first O-ring abuts against the valve sleeve and the valve seat, the valve sleeve is sleeved with a second O-ring, and the second O-ring is located between the valve sleeve and the valve seat.
8. The crystallization-preventing liquid injection pump valve according to claim 1, further comprising a pump body assembly, wherein the pump body assembly comprises a pump shell and a pump core, the pump shell is provided with a containing cavity, the pump core is movably contained in the containing cavity, the pump shell is fixed on one side of the valve seat, and the connecting port is communicated with the containing cavity; the pump core can move in the pump shell in a direction away from the valve seat to enable working medium to be sucked into the accommodating cavity through the medium inlet pipe, and the pump core can also move in the pump shell in a direction close to the valve seat to enable the working medium in the accommodating cavity to be pushed out through the medium outlet pipe.
9. The crystallization-preventing liquid injection pump valve according to claim 8, wherein a pump body inlet and a pump body outlet are formed in one end of the pump shell, which is close to the valve seat, and the connecting port is communicated with the containing cavity through the pump body inlet and the pump body outlet.
10. The crystallization-preventing liquid injection pump valve of any one of claims 1-9, wherein the valve spool rotates at an angle of 45 degrees.
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| CN202310811230.5A CN117028609A (en) | 2023-07-04 | 2023-07-04 | Crystallization-preventing liquid injection pump valve |
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| CN202310811230.5A CN117028609A (en) | 2023-07-04 | 2023-07-04 | Crystallization-preventing liquid injection pump valve |
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| CN117028609A true CN117028609A (en) | 2023-11-10 |
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| CN202310811230.5A Pending CN117028609A (en) | 2023-07-04 | 2023-07-04 | Crystallization-preventing liquid injection pump valve |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117293497B (en) * | 2023-11-24 | 2024-03-08 | 深圳市恒永达科技股份有限公司 | Battery liquid injection crystallization-preventing maintenance method and battery liquid injection system |
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