CN106907508B - Multi-runner outlet one-way valve for gas, liquid or gas-liquid mixed multi-medium compression pump - Google Patents
Multi-runner outlet one-way valve for gas, liquid or gas-liquid mixed multi-medium compression pump Download PDFInfo
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- CN106907508B CN106907508B CN201710257907.XA CN201710257907A CN106907508B CN 106907508 B CN106907508 B CN 106907508B CN 201710257907 A CN201710257907 A CN 201710257907A CN 106907508 B CN106907508 B CN 106907508B
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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
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/025—Check valves with guided rigid valve members the valve being loaded by a spring
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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
- 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
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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
- 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
- F04B53/102—Disc valves
- F04B53/1022—Disc valves having means for guiding the closure member axially
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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
- 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
- F04B53/102—Disc valves
- F04B53/1032—Spring-actuated disc valves
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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
- 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
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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
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/02—Means in valves for absorbing fluid energy for preventing water-hammer or noise
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Check Valves (AREA)
Abstract
The invention relates to a multi-flow-channel outlet one-way valve for a compression pump suitable for conveying gas, liquid or gas-liquid mixed multi-item media, which comprises a pump cover, a valve plate, a spring and a valve seat, wherein the valve seat is fixedly connected with the pump cover, N overflowing flow channels are arranged on the valve seat, the N overflowing flow channels are synchronously opened or closed by the valve plate, and the corresponding valve plate is also provided with N overflowing flow channels. In addition, a concave cavity is arranged on the end surface of the outer side of the valve seat, and the concave cavity is communicated with the end surface through a plurality of pressure relief holes. The check valve has the dual functions of the hydraulic cylinder cover and the outlet check valve, avoids the structural defect that the outlet valve hole and the hydraulic cylinder hole of the hydraulic cylinder body of the traditional compression pump are vertically crossed, and can prevent the problem that the cracking of the hydraulic cylinder fails due to the stress concentration at the cross position of the hole under the action of alternating load. Meanwhile, the height of the hydraulic cylinder body can be reduced, materials are saved, and the flow passage overflowing in the hydraulic cylinder body can be improved. And the multi-runner design increases the flow area, reduces the hydraulic loss, improves the efficiency, can reduce the opening height of the check valve, reduces the vibration and prolongs the service life.
Description
Technical Field
The invention relates to an outlet one-way valve for a compression pump suitable for conveying gas, liquid or gas-liquid mixed multi-media, in particular to a multi-channel outlet one-way valve structure for the compression pump with dual functions of a liquid cylinder cover and the outlet one-way valve.
Background
The compression pump has the function of conveying liquid media by the reciprocating pump, has the function of conveying gaseous media by the piston compressor, and has the function of conveying the gaseous media by the gas-liquid mixed conveying pump. The hydraulic cylinder cover and the outlet one-way valve are key parts of the hydraulic end of the compression pump suitable for conveying gas, liquid or gas-liquid mixed multiple media. The outlet one-way valve of the traditional compression pump cylinder body is vertically intersected with the cylinder hole, and under the action of alternating load, the pressure at the intersection of the holes is concentrated, so that the problem of cracking failure is easily caused. Therefore, the problem is well solved through the integrated design of the liquid cylinder cover and the outlet one-way valve, the liquid outlet hole of the outlet one-way valve is arranged on the liquid cylinder cover in the liquid cylinder hole, so that the liquid cylinder cover has the functions of high-pressure sealing of the liquid cylinder cover and outlet valve seat, and the structural defect that the outlet valve hole of the liquid cylinder body is vertically intersected with the liquid cylinder hole in the traditional compression pump is overcome.
In addition, the traditional compressor pump inlet one-way valve adopts a single-flow-channel or double-flow-channel design, and the opening height of the valve and the flow rate of a valve gap are both limited. Along with the maximization of a compression pump, the flow of the valve is larger and larger, a single-channel or double-channel design is adopted, the structural size of the valve is large, the lift range of the valve is high, the mass of a valve core is heavy, and the flow rate of a valve gap is large.
Disclosure of Invention
The invention aims to solve the technical problem of the prior art and provides a multi-channel outlet one-way valve for a compression pump, which has the advantages of large flow area, small hydraulic loss, high efficiency and small valve opening height, and is suitable for conveying gas, liquid or gas-liquid mixed multi-medium compression pumps.
The technical scheme adopted by the invention for solving the first technical problem is as follows: the multi-channel outlet check valve for the compression pump comprises a pump cover, a valve plate, a spring and a valve seat, and is characterized by also comprising a cylindrical boss-shaped front part of the valve seat and the pump cover which are fixedly connected, a large annular groove is formed between the cylindrical boss-shaped front part of the valve seat and the pump cover at an interval, the valve plate is sleeved on the cylindrical boss of the valve seat in an axially sliding manner, and the spring is sleeved on the valve plate to enable the valve plate to be tightly attached to the end surface of the valve seat; n annular grooves are formed in the end face of the valve seat, a plurality of liquid outlet holes are formed in each annular groove, N overflowing flow channels of the valve seat are formed by the liquid outlet holes and the N annular grooves, the N overflowing flow channels are synchronously opened or closed by the valve plate, and N is an integer and is not less than 2.
Furthermore, N overflowing flow channels are also arranged on the valve plate, so that the overflowing area can be further increased, and the hydraulic loss is reduced; the opening height of the outlet one-way valve can be reduced, the delay angle of the opening or closing of the one-way valve is reduced, the return volume loss is reduced, and the volume efficiency of the pump is improved; meanwhile, the opening or closing speed of the check valve can be reduced, the impact force is reduced, and the noise is reduced.
Preferably, a concave cavity and a plurality of pressure relief holes communicated with the concave cavity are arranged on the outer side end face of the valve seat, and the pressure relief holes can prevent the pressure in the concave cavity from being suppressed.
The end face of the pump cover opposite to the valve seat can be provided with a circular groove for limiting a cylindrical boss on the valve seat, and the valve seat is arranged on the circular groove and fastened through a bolt.
Besides the split combination structure, the pump cover and the valve seat can be designed into a whole.
Compared with the prior art, the invention has the advantages that:
(1) The pump cover and the valve seat are integrated or combined, and the dual functions of high-pressure sealing of the pump cover and outlet valve seat are achieved; the multi-runner structural design is adopted, and a plurality of overflowing runners are arranged on the valve seat, so that the overflowing area is large, the hydraulic loss is small, and the efficiency of the pump is improved;
(2) The outlet one-way valve has large radial size, adopts a multi-channel structure, has large flow area, small valve plate lift, small closing impact load, low vibration noise and long service life;
(3) The outlet one-way valve has large spring pitch diameter, large spring wire diameter, small stress and long service life;
(4) The outlet valve seat is provided with a pressure relief hole which can prevent the pressure in the concave cavity of the outlet valve seat from being suppressed.
(5) The outlet one-way valve is suitable for a gas, liquid or gas-liquid mixed multi-medium compression pump.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Detailed Description
The invention is described in further detail below with reference to the accompanying examples.
With reference to fig. 1, the multi-channel outlet check valve for the compression pump is mainly composed of a valve seat 1, a sealing ring 2, a valve plate 3, a spring 4, a pump cover 5 and the like, wherein: the valve seat 1 is a stepped cylinder with a cylindrical boss 17 in the front. The end face of the pump cover 5, which is opposite to the valve seat, is provided with a circular groove for limiting a cylindrical boss 17 on the valve seat. When assembling, the valve seat 1 is arranged on the circular groove of the pump cover 5 and is tightly connected with the valve seat through the bolt 6, and the sealing ring 2 is arranged between the valve seat and the pump seat. And still form a big annular groove by cylindrical boss 17 on the disk seat between disk seat 1 and the pump cover 5 separates, valve plate 3 and spring 4 establish promptly in this big annular groove department, specifically are: the valve plate 3 is sleeved on the cylindrical boss 17 of the valve seat and can axially slide, a space 7 for opening and moving up the valve plate is reserved between the valve plate 3 and the end face of the pump cover 5, and the space 7 between the valve plate 3 and the valve cover is small because the outlet check valve has large flow area and small valve opening height; spring 4 cover is on valve plate 3, and its one end is connected with valve plate 3, and the other end is connected with pump cover 5, can ensure through this spring 4 that valve plate 3 has fine centering nature and leakproofness, at the check valve during operation, can ensure that N of this check valve overflows the runner and opens or close in step, noninterference. The outlet one-way valve has the advantages of large spring pitch diameter, large spring wire diameter, small stress and long service life.
The center of the end face of the outer side of the valve seat 1 is provided with a concave cavity 11, the concave cavity 11 is communicated with the end face through a plurality of pressure relief holes 12, and the pressure relief holes 12 can prevent the pressure in the concave cavity from being suppressed. The end face of the valve seat boss side is provided with N (N is an integer and N is more than or equal to 2) annular grooves 13, 14 and 15, the N annular grooves are concentrically distributed around the axis, and a plurality of liquid outlet holes 16 are drilled in each annular groove and are distributed along the circumferential direction of the annular groove. Thus, the plurality of outlet openings 16 and the N annular grooves 13, 14, 15 on the end face form N through-flow channels of the valve seat. N overflowing flow passages 31, 32 and 33 formed by N concentrically distributed annular slotted holes are also arranged on the corresponding valve plate 3, so that the overflowing area can be further increased, and the hydraulic loss is reduced; the opening height of the outlet check valve can be reduced, the delay angle of opening or closing the check valve is reduced, the return volume loss is reduced, and the volume efficiency of the pump is improved; meanwhile, the opening or closing speed of the check valve can be reduced, the impact force is reduced, and the noise is reduced.
And the outer circle side surfaces of the valve seat 1 and the pump cover 5 are both provided with a sealing ring 2.
This export check valve adopts pump cover and export disk seat integrated design, and is downthehole at the hydraulic cylinder with the setting of export check valve, has avoided the structure drawback of traditional compression pump hydraulic cylinder body export valve opening and the perpendicular crossing of hydraulic cylinder hole, can prevent under the alternating load effect, and the hole cross stress concentrates, produces the problem that the hydraulic cylinder fracture became invalid. Meanwhile, the height of the hydraulic cylinder body can be reduced, materials are saved, and the flow passage overflowing in the hydraulic cylinder body can be improved. And the multi-runner design increases the flow area, reduces the hydraulic loss, improves the efficiency, can reduce the opening height of the check valve, reduces the vibration and prolongs the service life.
The working principle of the outlet one-way valve is as follows: the outlet one-way valve and the piston do synchronous reciprocating motion. The direction of pressure discharge of the piston in the cylinder is oriented forward and the opposite direction is defined as rearward. When the piston moves forward, under the sealing action of the piston, the liquid pressure rises, the valve plate overcomes the pressure of the spring, the valve plate is separated from the opening of the overflowing flow passage, the outlet check valve is opened, and the medium in the pump cylinder is pressurized and discharged. When the piston moves backwards, the outlet one-way valve is closed, the volume is increased under the action of the sealing element and the outlet one-way valve, vacuum is formed, and the medium in the hydraulic cylinder at the rear end of the piston is sucked into the hydraulic cylinder at the front end of the piston for storage.
However, the valve seat and the pump cover shown in the drawings of the present embodiment are in a split-type structure, but besides the split-type structure, an integrated design may also be adopted, that is, the pump seat and the valve seat are designed into an integrated structure, and the object of the present invention can also be achieved.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications or improvements can be made to the present invention without departing from the principle of the present invention, and these are considered to be within the protection scope of the present invention.
Claims (3)
1. The utility model provides a be suitable for and carry gas, liquid or multi-media of gas-liquid mixture multi-media compression pump with multithread way export check valve, including pump cover, valve plate and spring, its characterized in that: the valve plate is sleeved on the cylindrical boss of the valve seat in an axially slidable manner, and the spring is sleeved on the valve plate to enable the valve plate to be tightly attached to the end face of the valve seat; n annular grooves concentrically distributed around the axis are formed in the end face of the valve seat, a plurality of liquid outlet holes are formed in each annular groove, N overflowing flow channels of the valve seat are formed by the liquid outlet holes and the N annular grooves, and the N overflowing flow channels are synchronously opened or closed by the valve plate;
the valve plate is also provided with N overflowing runners formed by N concentrically distributed annular slotted holes;
a concave cavity and a plurality of pressure relief holes communicated with the concave cavity are arranged on the end face of the outer side of the valve seat;
n is an integer and is more than or equal to 2.
2. The multi-flow passage outlet check valve for a compression pump as claimed in claim 1, wherein: the end face of the pump cover, which is opposite to the valve seat, is provided with a circular groove for limiting a cylindrical boss on the valve seat, and the valve seat is arranged on the circular groove and is fastened through a bolt.
3. The multi-flow passage outlet check valve for a compression pump as claimed in claim 1, wherein: the valve seat and the pump cover are of an integrated structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710257907.XA CN106907508B (en) | 2017-04-19 | 2017-04-19 | Multi-runner outlet one-way valve for gas, liquid or gas-liquid mixed multi-medium compression pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710257907.XA CN106907508B (en) | 2017-04-19 | 2017-04-19 | Multi-runner outlet one-way valve for gas, liquid or gas-liquid mixed multi-medium compression pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106907508A CN106907508A (en) | 2017-06-30 |
| CN106907508B true CN106907508B (en) | 2022-12-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710257907.XA Active CN106907508B (en) | 2017-04-19 | 2017-04-19 | Multi-runner outlet one-way valve for gas, liquid or gas-liquid mixed multi-medium compression pump |
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| Country | Link |
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| CN (1) | CN106907508B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010124798A1 (en) * | 2009-04-28 | 2010-11-04 | Prettl, Rolf | Check valve |
| CN203362494U (en) * | 2013-02-25 | 2013-12-25 | 三一汽车制造有限公司 | Non-return valve, water distribution valve including non-return valve, and water pump device |
| CN104728097A (en) * | 2015-02-12 | 2015-06-24 | 宁波同力泵业有限公司 | Combined type piston suction one-way valve for piston pump |
| CN104728100A (en) * | 2015-02-12 | 2015-06-24 | 宁波同力泵业有限公司 | Combined type hydraulic cylinder cover discharge one-way valve for reciprocating pump |
| CN105822539A (en) * | 2016-05-17 | 2016-08-03 | 宁波同力泵业有限公司 | Combined inlet and outlet one-way valve for reciprocating pump |
-
2017
- 2017-04-19 CN CN201710257907.XA patent/CN106907508B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010124798A1 (en) * | 2009-04-28 | 2010-11-04 | Prettl, Rolf | Check valve |
| CN203362494U (en) * | 2013-02-25 | 2013-12-25 | 三一汽车制造有限公司 | Non-return valve, water distribution valve including non-return valve, and water pump device |
| CN104728097A (en) * | 2015-02-12 | 2015-06-24 | 宁波同力泵业有限公司 | Combined type piston suction one-way valve for piston pump |
| CN104728100A (en) * | 2015-02-12 | 2015-06-24 | 宁波同力泵业有限公司 | Combined type hydraulic cylinder cover discharge one-way valve for reciprocating pump |
| CN105822539A (en) * | 2016-05-17 | 2016-08-03 | 宁波同力泵业有限公司 | Combined inlet and outlet one-way valve for reciprocating pump |
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| Publication number | Publication date |
|---|---|
| CN106907508A (en) | 2017-06-30 |
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