CN108571597A - Throttling stop valve - Google Patents
Throttling stop valve Download PDFInfo
- Publication number
- CN108571597A CN108571597A CN201710134424.0A CN201710134424A CN108571597A CN 108571597 A CN108571597 A CN 108571597A CN 201710134424 A CN201710134424 A CN 201710134424A CN 108571597 A CN108571597 A CN 108571597A
- Authority
- CN
- China
- Prior art keywords
- valve
- throttling
- spool
- stop valve
- channel
- 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
Links
- 239000012530 fluid Substances 0.000 claims description 7
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000002950 deficient Effects 0.000 claims 1
- 238000013461 design Methods 0.000 abstract description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 2
- 229910052802 copper Inorganic materials 0.000 abstract description 2
- 239000010949 copper Substances 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract description 2
- 229910000679 solder Inorganic materials 0.000 abstract description 2
- 239000003507 refrigerant Substances 0.000 description 12
- 238000010586 diagram Methods 0.000 description 7
- 230000009471 action Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000013507 mapping Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/02—Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
-
- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/42—Valve seats
-
- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/52—Means for additional adjustment of the rate of flow
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Sliding Valves (AREA)
Abstract
Throttling stop valve, including valve body (10), and the first passage (11) and second channel (12) being arranged on the valve body (10), it is connected to by valve port (13) between the first passage (11) and the second channel (12)；Valve rod (20) can be moved up and down to be turned on and off the valve port (13)；It is characterized in that, being formed with throttling cavity (122) on the second channel (12), spool (123) is provided in the throttling cavity (122).Throttling stop valve provided by the invention, directly spool is positioned by valve rod, moving up for spool is limited without dedicated structure is arranged again in valve inner, not only structure design simple and compact, and reducing unnecessary solder joint, quality is relatively reliable.The copper material use of product can also be reduced simultaneously, thus can be further reduced the cost.
Description
Technical field
The present invention relates to valve technology fields, more particularly to a kind of stop valve structure with throttling function.
Background technology
Within air-conditioning systems, include mainly compressor, indoor heat exchanger, outdoor heat exchanger, throttling set, shut-off valve
Equal components, wherein shut-off valve is mainly used for connecting indoor unit and outdoor unit, and plays the role of controlling refrigerant flow break-make；Section
Stream device is then mainly used for controlling the flow of refrigerant.
Referring to FIG. 1, Fig. 1 is a kind of structural schematic diagram of existing typical shut-off valve.
The shut-off valve includes valve body 1 ' and valve rod 2 '；Wherein, the left end of valve body 1 ' offers first passage 11 ', and lower end is opened
Equipped with second channel 12 '；Valve rod 2 ' is set in the inner cavity of valve body 1 ', and valve rod 2 ' is above provided with external screw thread, the internal chamber wall of valve body 1 '
Face is equipped with the matched internal thread of external screw thread with valve rod 2 ', when being rotated to valve rod 2 ', in valve under the action of screw thread pair
Body moves up and down in 1 ' inner cavity, to close or be connected to first passage 11 ' and second channel 12 '.
Before air conditioner installation, rotation valve rod 2 ' moves down, so that first passage 11 ' and second channel 12 ' are closed,
The fluid passages such as refrigerant are disconnected, after air conditioner installation, valve rod 2 ' is rotated further by and moves up, so that first passage 11 ' and second leads to
Road 12 ' is in connected state, i.e., is connected to the fluid passages such as refrigerant.
Shown in Fig. 1, second channel 12 ' is outdoor system wing passage, and first passage 11 ' is indoor heating system wing passage,
Outer end is equipped with the union nut 3 ' being connect with indoor unit.
In addition, the shut-off valve is also provided with filling structure in valve body right end, in order to fill refrigerant into air conditioner.Specifically
Ground, the filling structure include the third channel 13 ' being connected to 1 ' inner cavity of valve body, and the third channel 13 ' is interior to be equipped with valve inside 4 ',
Refrigerant is filled into air conditioner will pass through it.It is of course also possible to the setting filling structure not on stop valve body, and will filling
Structure is separately arranged.
In the prior art, throttling set is usually combined with check valve by capillary and is constituted, and achievees the purpose that control flow.
With the continuous development of technology, it is proposed that a kind of technical solution that throttling set and shut-off valve combine, to eliminate
Capillary pipe structure keeps product integrally compacter.
However the current shut-off valve with throttling set, a universal problem to be solved are the specific of throttling set
Installation position and set-up mode so that throttling set can it is easy to process, be convenient for and existing stop valve structure is combined, and
Without making excessive change to existing universal cutoff valves structure, to improve the suitability of product processing.In addition, throttling set is
It is no smoothly to be moved in stop valve body to play throttling action, and can further reduce the cost, it is this field skill
Art personnel's technical issues that need to address.
Invention content
The object of the present invention is to provide a kind of shut-off valves with throttling function, can directly determine spool by valve rod
Position, to further decrease manufacturing cost.For this purpose, the present invention uses following technical scheme：
Throttling stop valve, including valve body, and the first passage and second channel that are arranged on the valve body, described first
It is connected to by valve port between channel and the second channel；
Valve rod can be moved up and down to be turned on and off the valve port；
It is characterized in that, being formed with throttling cavity on the second channel, spool is provided in the throttling cavity.
The throttling cavity is cylindrical so that when the spool is moved up to extreme position, can directly with the valve rod
It abuts against.
It is machined with first throttle channel on valve body below the throttling cavity, and forms throttle orifice.
The throttling cavity is processed and formed at one time with the first throttle channel.
It is provided with small valve seat in the valve body, throttle orifice and first throttle channel are machined on the small valve seat.
The lower end of the valve body is provided with valve body step, and the small valve seat is connected to the valve body by way of press-fitting
On step.
The spool is provided with perforative second throttling passage up and down along the central axis of itself.
Be provided with lack part on the periphery wall of the spool so that fluid can along the spool peripheral, axial from
By circulating.
The lack part is several notch sections so that the periphery of the spool forms several sliding parts, and the sliding part can
It is free to slide along the throttling cavity.
In the inside of throttling stop valve, the first mistake is respectively arranged at the both ends in the spool Yu the first throttle channel
Filter component and the second filter element.
Throttling stop valve provided by the invention directly positions spool by valve rod, without valve inner again
Dedicated structure is set to limit moving up for spool, not only structure design simple and compact, but also reducing need not
The solder joint wanted, quality are relatively reliable.The copper material use of product can also be reduced simultaneously, thus can be further reduced the cost.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of existing typical shut-off valve；
Fig. 2 is the structural schematic diagram of throttling stop valve first embodiment provided by the present invention；
Fig. 3 is the structural schematic diagram of another working condition of throttling stop valve first embodiment provided by the present invention；
Fig. 4 is throttling stop valve valve hole part cross-sectional view provided by the present invention；
Fig. 5 is throttling stop valve valve hole part three-dimensional view provided by the present invention；
Fig. 6 is the structural schematic diagram of throttling stop valve second embodiment provided by the present invention.
Specific implementation mode
In order to enable those skilled in the art to better understand the solution of the present invention, with reference to the accompanying drawings and detailed description
The present invention is described in further detail.
Referring to FIG. 2, Fig. 2 is the structural schematic diagram of throttling stop valve first embodiment provided by the present invention.
Throttling stop valve includes valve body 10 and valve rod 20；Wherein, valve body 10 have first passage 11 and second channel 12, two
Person is connected to by valve port 13；Valve rod 20 is set to the inner cavity of valve body 10, can move up and down to be turned on and off the valve port 13, so as to
First passage 11 is set to be connected to or cut off with second channel 12.
In general, valve rod 20 and the inner cavity of valve body 10 are coordinated by screw thread pair, when rotation valve rod 20, screw thread pair is utilized to realize valve
Bar 20 is moved up and down with separate or contact valve port 13.
In the present embodiment, it is additionally provided with throttle orifice 121 in second channel 12 so that, in second channel 12, in valve
Throttling cavity 122 is formed between mouth 13 and throttle orifice 121.Throttling cavity 122 can be molded by machining, upper part tool
There is identical internal diameter so that throttling cavity 122 is generally cylindrical.On the valve body of the lower section of throttling cavity 122, it is machined with first
Throttling passage 124, to form throttle orifice 121.
In the present embodiment, first throttle channel 124 is integrally formed in the inside of valve body 10, specifically, Ke Yitong
The mode for crossing drilling processing is molded.This setup, 121 direct forming of throttle orifice is on valve body 10 so that throttling cavity
122 can be processed and formed at one time with first throttle channel 121, to enable spool 123 described below to be kept with throttle orifice 121
Good concentricity.
In the cavity 122 that throttles, it is provided with spool 123, spool 123 has compatible with the internal diameter of second channel 12 outer
Diameter, so that spool 123 can move up and down in second channel 12 along central axis zero deflection.When spool 123
When being moved upward to extreme position, top 1231 abuts against with valve rod 20 and is blocked.
Spool 123 along the central axis of itself be provided with up and down perforative second throttling passage 125, when spool 123 to
Lower movement extremely extreme position, when being in contact with throttle orifice 121, refrigerant can be flowed into from the top of the second throttling passage 125, warp
After the throttling of second throttling passage 125, throttle orifice 121 is flowed through, and flow out second channel 12.
It is provided with lack part on the periphery wall of spool 123 so that in throttling cavity 122, fluid can be along spool 123
Periphery freely circulation up and down.The present invention does not define the specific set-up mode of the lack part of spool peripheral part, only needs
Meet the periphery wall that fluid can freely flow through spool 123.In order to make it easy to understand, giving wherein one in present embodiment
The specific valve core structure mode of kind can make spool it will be understood by those skilled in the art that under the enlightenment of this mentality of designing
Go out various equivalent mapping modes.
In the present embodiment, the periphery of spool 123 is by the way of being arranged several notch sections 126, such as Fig. 4, Fig. 5 institute
Show.Fig. 4 is the viewgraph of cross-section of valve hole part, and Fig. 5 is three-dimensional view.Due to the setting of several notch sections 126 so that spool
123 periphery forms several sliding parts 127, and sliding part 127 can freely be slided along throttling cavity 122, and refrigerant is then
It can be flowed freely along several notch sections 126.
Fig. 2 is please referred to, when refrigerant flows into shut-off valve from first passage 11, when needing throttling, operating valve lever 20 makes valve
Bar 20 rises, and to open valve port 13, first passage 11 is made to be connected with second channel 12.At this point, in the effect of pressure difference
Under, spool 123 moves down, and is abutted against with throttle orifice 121, and refrigerant can not get around spool 123 from notch section 126 and flow directly into
Throttle orifice 121, and can only be flowed into from the second throttling passage 125, cocurrent flows behind throttle orifice 121, first throttle channel 124
Go out second channel 12, to achieve the purpose that throttling.
Fig. 3 is please referred to, Fig. 3 is the structural representation of another working condition of throttling stop valve first embodiment provided by the present invention
Figure.When refrigerant fluid is flowed into from second channel 12, i.e., the lower section in orientation shown in Fig. 3 flows upwardly into, at this point, due to pressure difference
Effect, spool 123 is pushed up to extreme position, is abutted against with valve rod 20.Refrigerant is flowed into from first throttle channel 124, is flowed through
After throttle orifice 121, the notch section 126 being arranged from spool periphery flows through, and flows to first passage 11.Under the working condition,
Throttle orifice 121 plays throttling action.
It is miscellaneous in refrigeration system in order to prevent since the aperture in first throttle channel 124 and the second throttling passage 125 is smaller
Matter blocks throttling passage, filter device can also be arranged in the throttling stop valve that present embodiment provides, i.e., in spool 123
The first filter element 128 and the second filter element 129, the first filter element 128 and the second filter element is respectively set in both sides
129, which may be used common fixed form, is fixed.In the present embodiment, it can be set on the second filter element 129
Flanging 1291 is set, 4 is then will take over and is fitted into valve body 10, flanging 1291 is pressed on the step in valve body, then pass through weldering
It connects and is fixed.Certainly, it will be understood by those skilled in the art that the fixation of filter element is not limited to upper type.
It should be noted that the specific setting position of the first filter element 128 and the second filter element 129 without
It limits, is arranged inside throttling stop valve it will be understood by those skilled in the art that need to only meet filter element, and be located at spool
123 and first throttle channel 124 both sides.
The throttling stop valve that present embodiment provides can fill spool 123 down from the upper end of shut-off valve in assembly
Enter, then after be reloaded into valve rod 20, that is, the assembly method of existing common shut-off valve may be used completely, the versatility of product is stronger.
Fig. 6 is please referred to, Fig. 6 is the structural schematic diagram of throttling stop valve second embodiment provided by the present invention.For the ease of
It place only is different from the first embodiment to second embodiment illustrates it will be appreciated by those skilled in the art that following, for first
There is identical structure in embodiment and component with the same function uses same reference numeral.
In a second embodiment, it is separately provided with small valve seat 15 in the inside of valve body 10, and by throttle orifice 121 and first
Throttling passage 124 is all processed on small valve seat 15.Specifically, in the lower end of valve body 10 setting valve body step 101, by small valve
Seat 15 is press-fitted into valve body, is fixed by the modes such as such as welding.The structure of remaining part and another working condition are equal
It can refer to first embodiment to be understood, details are not described herein.
The throttling stop valve that present embodiment provides, spool 123 can both be packed into from the upper end of valve body 10, can also select
Up be packed into from the lower end of valve body 10, to reduce the demand to mounting condition, can flexibly select existing production line and
Fixture Design, to reduce manufacturing cost.
Throttling stop valve provided by the present invention is described in detail above.Specific case used herein is to this
The principle and embodiment of invention is expounded, the explanation of above example is only intended to help understand the present invention method and
Its core concept.It should be pointed out that for those skilled in the art, in the premise for not departing from the principle of the invention
Under, it can be with several improvements and modifications are made to the present invention, these improvement and modification also fall into the protection of the claims in the present invention
In range.
Claims (10)
1. throttling stop valve, including valve body (10), and the first passage (11) being arranged on the valve body (10) and second lead to
Road (12) is connected between the first passage (11) and the second channel (12) by valve port (13)；
Valve rod (20) can be moved up and down to be turned on and off the valve port (13)；
It is characterized in that, throttling cavity (122) is formed on the second channel (12), setting in the throttling cavity (122)
There is spool (123).
2. throttling stop valve as described in claim 1, which is characterized in that the throttling cavity (122) is cylindrical so that when
When the spool (123) moves up to extreme position, can directly it be abutted against with the valve rod (20).
3. throttling stop valve as claimed in claim 2, which is characterized in that the valve body (10) below the throttling cavity (122)
On be machined with first throttle channel (124), and form throttle orifice (121).
4. throttling stop valve as claimed in claim 3, which is characterized in that the throttling cavity (122) and the first throttle
Channel (121) is processed and formed at one time.
5. throttling stop valve as claimed in claim 2, which is characterized in that it is provided with small valve seat (15) in the valve body (10),
It is machined with throttle orifice (121) and first throttle channel (124) on the small valve seat (15).
6. throttling stop valve as claimed in claim 5, which is characterized in that the lower end of the valve body (10) is provided with valve body platform
Rank (101), the small valve seat (15) are connected to by way of press-fitting on the valve body step (101).
7. throttling stop valve as claimed in claim 2, which is characterized in that the spool (123) sets along the central axis of itself
It is equipped with perforative second throttling passage (125) up and down.
8. throttling stop valve as claimed in claim 7, which is characterized in that be provided on the periphery wall of the spool (123) deficient
The portion of lacking so that fluid can be along the peripheral, axial ground free flow of the spool (123).
9. throttling stop valve as claimed in claim 8, which is characterized in that the lack part is several notch sections (126) so that
The periphery of the spool (123) forms several sliding parts (127), and the sliding part (127) can be along the throttling cavity (122)
It is free to slide.
10. such as claim 1-9 any one of them throttling stop valves, which is characterized in that in the inside of throttling stop valve, in institute
It states spool (123) and the both ends of the first throttle channel (124) is respectively arranged with the first filter element (128) and the second mistake
Filter component (129).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710134424.0A CN108571597A (en) | 2017-03-08 | 2017-03-08 | Throttling stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710134424.0A CN108571597A (en) | 2017-03-08 | 2017-03-08 | Throttling stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108571597A true CN108571597A (en) | 2018-09-25 |
Family
ID=63577091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710134424.0A Pending CN108571597A (en) | 2017-03-08 | 2017-03-08 | Throttling stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108571597A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023088460A1 (en) * | 2021-11-22 | 2023-05-25 | 浙江盾安人工环境股份有限公司 | Stop valve |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7404538B2 (en) * | 2003-11-21 | 2008-07-29 | Parker-Hannifin Corporation | Dual restrictor shut-off valve |
| CN201129466Y (en) * | 2007-11-07 | 2008-10-08 | 广东恒基金属制品实业有限公司 | Bidirectional throttling stop valve with throttle and cut-off dual functions |
| KR20100010863U (en) * | 2009-04-27 | 2010-11-04 | 황기연 | Valve |
| CN202220859U (en) * | 2011-08-10 | 2012-05-16 | 浙江盾安禾田金属有限公司 | Throttle stop valve |
| CN202580144U (en) * | 2012-05-31 | 2012-12-05 | 浙江盾安禾田金属有限公司 | Combined stop valve |
| CN106247004A (en) * | 2016-08-26 | 2016-12-21 | 珠海格力电器股份有限公司 | Throttling arrangement and air-conditioner |
-
2017
- 2017-03-08 CN CN201710134424.0A patent/CN108571597A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7404538B2 (en) * | 2003-11-21 | 2008-07-29 | Parker-Hannifin Corporation | Dual restrictor shut-off valve |
| CN201129466Y (en) * | 2007-11-07 | 2008-10-08 | 广东恒基金属制品实业有限公司 | Bidirectional throttling stop valve with throttle and cut-off dual functions |
| KR20100010863U (en) * | 2009-04-27 | 2010-11-04 | 황기연 | Valve |
| CN202220859U (en) * | 2011-08-10 | 2012-05-16 | 浙江盾安禾田金属有限公司 | Throttle stop valve |
| CN202580144U (en) * | 2012-05-31 | 2012-12-05 | 浙江盾安禾田金属有限公司 | Combined stop valve |
| CN106247004A (en) * | 2016-08-26 | 2016-12-21 | 珠海格力电器股份有限公司 | Throttling arrangement and air-conditioner |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023088460A1 (en) * | 2021-11-22 | 2023-05-25 | 浙江盾安人工环境股份有限公司 | Stop valve |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180925 |
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| WD01 | Invention patent application deemed withdrawn after publication |