CN110094547A - A kind of large capacity reversal valve - Google Patents
A kind of large capacity reversal valve Download PDFInfo
- Publication number
- CN110094547A CN110094547A CN201810081438.5A CN201810081438A CN110094547A CN 110094547 A CN110094547 A CN 110094547A CN 201810081438 A CN201810081438 A CN 201810081438A CN 110094547 A CN110094547 A CN 110094547A
- Authority
- CN
- China
- Prior art keywords
- piston
- flange
- piston flange
- valve
- interconnecting piece
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- 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
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
- F16K11/065—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members
- F16K11/07—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with cylindrical slides
- F16K11/0716—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with cylindrical slides with fluid passages through the valve member
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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
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/08—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks
- F16K11/085—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks with cylindrical plug
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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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
- F16K3/36—Features relating to lubrication
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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
- F16K5/08—Details
- F16K5/22—Features relating to lubrication
- F16K5/225—Features relating to lubrication for plugs with cylindrical surfaces
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Driven Valves (AREA)
Abstract
The invention discloses a kind of large capacity reversal valves, the pilot valve to commutate including main valve and control bound, main valve includes: valve body, the intracorporal piston of valve, the adapter tube being arranged on valve body is arranged in, and wherein piston includes: two end of piston flange one end and piston flange that piston both ends are arranged in；Discoid interconnecting piece in the middle part of piston, interconnecting piece and piston flange one end are set and piston flange two holds row level with both hands；It is connected to the weft element of the plate between piston flange one end and interconnecting piece；It is connected to the vertical body of the plate between two end of piston flange and interconnecting piece；Wherein, weft element is mutually perpendicular to vertical body, and the outer surface of the outer surface of weft element and vertical body is located on the tubular cylindrical surface of piston；Anti-wearing liner is fixedly installed in piston flange one end and two end outer circle of piston flange.The present invention is arranged anti-wearing liner, efficiently solves large capacity reversal valve part Properties of Dry Friction Problems, alleviate the problem that prior art processing is complicated, production difficulty is larger by improving piston structure.
Description
Technical field
The invention discloses a kind of large capacity reversal valves, relate generally to the large capacity reversal valve of heating refrigerating field.
Background technique
Large capacity reversal valve is arranged in pump type heat central air conditioner system, for changing the flow direction of refrigerant, realizes system
Cold, heating switching purpose.Large capacity reversal valve is usually made of main valve and pilot valve.As shown in Figure 1, main valve includes: 1 He of valve body
Movable piston 2, the condenser pipe 30 being arranged on valve body 1, evaporation tube 40, high-pressure pipe 50 and low pressure row in valve body 1
Tracheae 60.The both ends of valve body 1 are equipped with first end cover 101 and second end cover 102, pass through the dissection and analysis to failure valve body, discovery
Scoring position multidigit is between valve body low pressure exhaust pipe and the angle of condenser pipe or between low pressure exhaust pipe and the angle of evaporation tube.
As shown in Figure 1, scratch is all located at the folder of valve body low pressure exhaust pipe and condenser pipe when scratch is located at the end face of first end cover 101
At angle；When scratch is located at the end face of second end cover 102, scratch is all located at the angle of valve body low pressure exhaust pipe and evaporation tube.
When reversal valve work when, high pressure gas effect lower piston can an oriented direction inclined trend, as Fig. 2 with
Shown in Fig. 4, arrow A indicate high pressure gas flow direction, arrow B indicate low-pressure gas flow direction, 2 position of piston be schematic representation, Fig. 3 and
Position of the piston 2 in valve body 1 when Fig. 5 is 1 different conditions of valve body.By taking Fig. 2, Fig. 3 state as an example, under the action of high pressure gas
Piston 2 is tilted between 1 low pressure exhaust pipe 60 of valve body and evaporation tube 40, when piston 2 is mobile to the end face of second end cover 102,
Due to piston 2 by high pressure gas thrust in commutation valve body low pressure exhaust pipe 60 and 40 angle of evaporation tube by resistance compared with
Greatly, if the stress point cannot sufficiently, effectively lubricate, valve body 1 will be destroyed with piston 2 and be located at the low of second end cover 102
Oil film between 40 angle of pressure tracheae 60 and evaporation tube forms dry friction, reversal valve wear-out failure is caused when serious.
When being in the state of Fig. 4, Fig. 5, valve body low pressure exhaust pipe 60 and the stress point of 30 angle of condenser pipe cannot get
Sufficient, effective lubrication will destroy valve body 1 and piston 2 is located at the low pressure exhaust pipe 60 of first end cover 101 and condenser pipe 30 presss from both sides
Oil film between angle forms dry friction, reversal valve wear-out failure is caused when serious.
By obtaining above, the local friction formed between valve body 1 and piston 2 be easy to cause defective diverted valve.In Publication No.
In the Chinese invention patent application of CN102162543, a kind of four-way reversing valve is disclosed, oilite bushing is set in valve body 1, by
Oilite bushing is lubricated the movement of piston 2, avoids the dry friction generated between piston 2 and valve body 1, increases reversal valve
Service life, on the other hand, the processing of this technical solution is complicated, production difficulty is larger, needs to improve.
Summary of the invention
Present invention solves the technical problem that being the local dry friction for avoiding the valve body of large capacity reversal valve and piston from generating, delay
Product processes complicated, the biggish defect of production difficulty to solution in the prior art.
In consideration of it, the invention proposes a kind of large capacity reversal valve, including the pilot valve that main valve and control bound commutate, main valve
Include: valve body, the intracorporal piston of valve, the adapter tube being arranged on valve body are set, wherein piston includes: that piston both ends are arranged in
Two end of piston flange one end and piston flange；Discoid interconnecting piece in the middle part of piston, interconnecting piece and piston flange one end are set
Hold row level with both hands with piston flange two；It is connected to the weft element of the plate between piston flange one end and interconnecting piece；It is connected to piston method
The vertical body of plate between Lan Erduan and interconnecting piece；Wherein, weft element is mutually perpendicular to vertical body, the outer surface of weft element
It is located on the tubular cylindrical surface of piston with the outer surface of vertical body；Piston flange one end and the fixation of two end outer circle of piston flange are set
Set anti-wearing liner.
The technical solution proposed according to the present invention, the beneficial effects of the present invention are, can be effective by improving piston structure
It solves the problem of to make force part form dry friction because of piston both ends outer circle and valve body local pressure, extends making for reversal valve
Use the service life.Compared with the prior art, scheme proposed by the present invention is easy to process, and production difficulty is smaller.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of structure sectional view of reversal valve in the prior art, and there is shown with pistons 2 and 1 dry friction of valve body to cause
Scratch；
Fig. 2 is the cross-sectional view that reversal valve shown in Fig. 1 is in a kind of working condition, there is shown with high-pressure pipe 50 with it is cold
The deviation of the radial position in valve body 1 of piston 2 when solidifying pipe 30 is connected to work；
Fig. 3 is to show position view when state piston 2 shown in Fig. 2 offsets with first end cover 101；
Fig. 4 is the cross-sectional view that reversal valve shown in Fig. 1 is in another working condition, there is shown with high-pressure pipe 50 with
The deviation of the radial position in valve body 1 of piston 2 when evaporation tube 40 is connected to work；
Fig. 5 is to show position view when state piston 2 shown in Fig. 4 offsets with second end cover 102；
Fig. 6 is structure of reversing valve schematic diagram according to an embodiment of the present invention；
Fig. 7 is the schematic diagram of piston in the reversal valve of the embodiment of the present invention；
Fig. 8 is anti-wearing liner 23 and 24 scheme of installation of piston flange end face in the embodiment of the present invention.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with attached drawing to the present invention
Technical solution be clearly and completely described, described embodiments are some of the embodiments of the present invention, rather than whole
Embodiment.
As shown in Figure 6 and Figure 7, large capacity reversal valve disclosed by the embodiments of the present invention, including main valve and control bound commutation
Pilot valve, main valve include: valve body 10, the piston being arranged in valve body 10 20, the condenser pipe 301 being arranged on valve body 10, evaporation
Pipe 401, high-pressure pipe 501 and low pressure exhaust pipe 601；Wherein piston 20 includes: the piston method that 20 both ends of piston are arranged in
Two end 22 of blue one end 21 and piston flange；The discoid interconnecting piece 25 at 20 middle part of piston, interconnecting piece and piston flange one are set
End 21 is parallel with two end 22 of piston flange；It is connected to the weft element 26 of the plate between piston flange one end 21 and interconnecting piece 25；
It is connected to the vertical body 27 of the plate between two end 22 of piston flange and interconnecting piece 25；Wherein, weft element 26 and vertical 27 phase of body
Mutually vertical, the outer surface of the outer surface of weft element 26 and vertical body 27 is located on the tubular cylindrical surface of piston；In piston method
Anti-wearing liner 23 is fixedly installed in blue one end 21 and two end of piston flange, 22 outer circle.
Preferably, anti-wearing liner 23 is fixed with piston flange one end 21, two end 22 of piston flange by interference press-fit approach,
I.e. anti-wearing liner 23 is cooperated with piston flange one end 21, two end 22 of piston flange using interference mode.It is preferred real at another
It applies in example, anti-wearing liner 23 is fixed with piston flange one end 21, two end 22 of piston flange using welding manner, to ensure wear-resisting lining
Set 23 is fixed on two end 22 of piston flange one end 21 and piston flange.
Preferably, anti-wearing liner 23 runs through the outer circle at piston flange one end 21, two end 22 of piston flange, to reach wear-resisting lining
The purpose of the 23 entire outer circle of covering of set.
Preferably, as shown in figure 8, fillet is arranged in plane of the anti-wearing liner 23 close to piston flange end face 24, and lower than work
Fill in end face of flange 24.In fig. 8, the installation site of anti-wearing liner 23 size lower than piston flange end face 24 is L.Because wear-resisting
23 rigidity of bushing is small, can prevent it from deforming in 10 inner impact of valve body using this technical solution.
Preferably, anti-wearing liner 23 uses self-lubricating material.In another alternative embodiment, anti-wearing liner 23 is powder
The sintered body of last metallurgy method production, sintered body rapidoprint includes: copper-based material, iron-based material or copper and iron sill.Sintered body
Inside contain lubricating oil, when piston 20 operates, lubricating oil enters 23 surface of anti-wearing liner, plays in piston flange one end 21, piston
The effect that the surface that two end 22 of flange is contacted with valve body 10 is lubricated.
Preferably, bushing is fixedly installed in interconnecting piece 25, to extend the friction durability of piston 20.Optionally, bushing is used and is opened
Mouth rolls bushing
Non-elaborated part of the present invention belongs to the content in terms of techniques well known.
Claims (9)
1. a kind of large capacity reversal valve, including main valve and control the pilot valve of the main valve commutation, the main valve include: valve body (1),
It is arranged in the adapter tube of piston (2), setting on valve body (1) in valve body (1), wherein piston (2) includes: to be arranged in piston (2)
The piston flange one end (21) and two end of piston flange (22) at both ends；The discoid interconnecting piece (25) being arranged in the middle part of piston (2),
Interconnecting piece is parallel with piston flange one end (21) and piston flange two ends (22)；It is connected to piston flange one end (21) and interconnecting piece
(25) weft element (26) of the plate between；It is connected to the vertical of the plate between two end of piston flange (22) and interconnecting piece (25)
Body (27)；Wherein, the weft element (26) is mutually perpendicular to vertical body (27), the outer surface and vertical body of weft element (26)
(27) outer surface is located on the tubular cylindrical surface of piston；It is characterized by: described piston flange one end (21) and piston
Anti-wearing liner (23) are fixedly installed in two end of flange (22) outer circle.
2. large capacity reversal valve according to claim 1, which is characterized in that the anti-wearing liner (23) and piston flange
One end (21), two end of piston flange (22) are pressed or are welded and fixed by interference.
3. large capacity reversal valve according to claim 1, which is characterized in that the anti-wearing liner (23) runs through piston method
Blue one end (21), two end of piston flange (22) outer circle.
4. large capacity reversal valve according to claim 1, which is characterized in that the anti-wearing liner (23) is close to piston method
Fillet is arranged in the plane of blue end face (24), and is lower than piston flange end face (24).
5. anti-wearing liner (23) according to any one of claims 1 to 4, which is characterized in that the anti-wearing liner (23) is adopted
Use self-lubricating material.
6. anti-wearing liner (23) according to any one of claims 1 to 5, which is characterized in that the anti-wearing liner (23) is
The sintered body of powder metallurgic method production, the sintered body rapidoprint includes: copper-based material, iron-based material or copper and iron substrate
Material.
7. large capacity reversal valve according to claim 1, which is characterized in that lining is fixedly installed in the interconnecting piece (25)
Set.
8. bushing according to claim 7, which is characterized in that the bushing rolls bushing using opening.
9. large capacity reversal valve according to claim 1, which is characterized in that the adapter tube includes condenser pipe (30), evaporation
Manage (40), high-pressure pipe (50) and low pressure exhaust pipe (60).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810081438.5A CN110094547A (en) | 2018-01-27 | 2018-01-27 | A kind of large capacity reversal valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810081438.5A CN110094547A (en) | 2018-01-27 | 2018-01-27 | A kind of large capacity reversal valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110094547A true CN110094547A (en) | 2019-08-06 |
Family
ID=67442619
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810081438.5A Pending CN110094547A (en) | 2018-01-27 | 2018-01-27 | A kind of large capacity reversal valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110094547A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202451935U (en) * | 2011-01-06 | 2012-09-26 | 朱红春 | Soft and hard combined and sealed piston ring solenoid valve with T-shaped section |
| CN202545885U (en) * | 2012-03-20 | 2012-11-21 | 浙江盾安机械有限公司 | Piston type four-way reversing valve |
| CN104121390A (en) * | 2013-04-28 | 2014-10-29 | 浙江盾安机械有限公司 | Four-way valve |
| CN104384503A (en) * | 2014-10-30 | 2015-03-04 | 苏州莱特复合材料有限公司 | Ferrum- and copper-based powder metallurgy antifriction material and preparation method thereof |
-
2018
- 2018-01-27 CN CN201810081438.5A patent/CN110094547A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202451935U (en) * | 2011-01-06 | 2012-09-26 | 朱红春 | Soft and hard combined and sealed piston ring solenoid valve with T-shaped section |
| CN202545885U (en) * | 2012-03-20 | 2012-11-21 | 浙江盾安机械有限公司 | Piston type four-way reversing valve |
| CN104121390A (en) * | 2013-04-28 | 2014-10-29 | 浙江盾安机械有限公司 | Four-way valve |
| CN104384503A (en) * | 2014-10-30 | 2015-03-04 | 苏州莱特复合材料有限公司 | Ferrum- and copper-based powder metallurgy antifriction material and preparation method thereof |
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