CN107191606A - It is a kind of accurately to continuously adjust the choke valve of Working fluid flow resistance - Google Patents
It is a kind of accurately to continuously adjust the choke valve of Working fluid flow resistance Download PDFInfo
- Publication number
- CN107191606A CN107191606A CN201710350071.8A CN201710350071A CN107191606A CN 107191606 A CN107191606 A CN 107191606A CN 201710350071 A CN201710350071 A CN 201710350071A CN 107191606 A CN107191606 A CN 107191606A
- Authority
- CN
- China
- Prior art keywords
- valve
- valve body
- fluid flow
- working medium
- 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.)
- Granted
Links
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
- F16K1/02—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 with screw-spindle
-
- 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
- F16K1/38—Valve members of conical shape
-
- 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
- F16K1/40—Valve members of helical shape
-
- 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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0254—Construction of housing; Use of materials therefor of lift valves with conical shaped valve members
-
- 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
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0008—Mechanical means
- F16K37/0016—Mechanical means having a graduated scale
-
- 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
- F16K47/04—Means in valves for absorbing fluid energy for decreasing pressure or noise level, the throttle being incorporated in the closure member
- F16K47/06—Means in valves for absorbing fluid energy for decreasing pressure or noise level, the throttle being incorporated in the closure member with a throttle in the form of a helical channel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Lift Valve (AREA)
- Sliding Valves (AREA)
Abstract
The invention belongs to choke valve field, and disclose and a kind of can accurately continuously adjust the choke valve of Working fluid flow resistance, including valve body, bonnet, valve rod, valve element and handwheel, the inside valve pocket of valve body is divided into the first valve pocket and the second valve pocket, and one end of the valve body, which is provided with the first working medium circulation interface and its side wall, is provided with the second working medium circulation interface；Bonnet is arranged on the valve body, and the inner and outer wall of bonnet has each extended over inner convex platform and outer lug boss；One end of valve rod passes through and the valve body is stretched into after the outer lug boss, inner convex platform and the sealing nut, and the end is fixedly connected with the valve element, and the other end of valve rod connects the handwheel；The valve element is adjacent to the valve body and helical groove is provided with the outside of the inwall and the valve element at the first valve pocket, and the helical groove connects first valve pocket and the second valve pocket, for regulation Working fluid flow resistance.The present invention can continuously adjust throttle resistance and can block flow of fluid, be adapted to more operating modes.
Description
Technical field
The invention belongs to choke valve field, the choke valve of Working fluid flow resistance can be adjusted more particularly, to a kind of.
Background technology
Throttle mechanism is that refrigerating field applies extremely extensive important component, throttle structure and compressor, condenser, evaporation
Device and the four big parts as refrigeration system.In refrigeration systems, throttle mechanism has to the refrigerating capacity and cryogenic temperature of refrigeration system
Very big influence.
Throttle mechanism the most frequently used in refrigeration system mainly has three kinds at this stage, be respectively heating power expansion valve, capillary and
Electric expansion valve.The regulating power of wherein heating power expansion valve and capillary is all poor, and heating power expansion valve can only be adjusted in a small range
Section, and capillary does not possess any regulating power；Although electric expansion valve possesses preferable regulating power, but needs complicated control
System processed, and need to be programmed according to the performance of refrigeration system, therefore price is higher.For needing regulation refrigerating capacity and system
The refrigerating plant of cold temperature, is sought after being easy to regulation and cheap throttle mechanism.
Although capillary does not possess any regulating power, because its is cheap, easy for installation, and Applicable temperature model
Enclose wide, be applicable very much for some refrigeration systems that need not be adjusted, such as the throttle mechanism used on refrigerator is substantially all
It is capillary.But because single capillary does not possess regulating power, it is desirable to realize design cooling condition, using preceding need through
Cross substantial amounts of experiment and determine suitable capillary dimension.Need to change capillary one after another in conventional experimentation, such as
Fruit have it is a kind of can in a big way it is interior can continuously and fine adjustment choke valve, research clearly this choke valve throttling
, thus can be significantly after performance, it is possible to the specification of capillary required for being determined by adjusting the aperture of this choke valve
Improve operating efficiency.
It is capable of the throttle mechanism of fine adjustment to be not only widely used demand in refrigerating field, in other field as accurate
The fields such as lathe, Aero-Space are equally widely used.A kind of accurate flow controller disclosed in application number 201611036121.7, is adopted
With fixed valve element, the helical groove of spool face also has the ability of accurate throttling, but can not continuously adjust throttle resistance
Size, need to change different valve elements when needing different throttle resistances, systematic working medium easily caused when changing valve element
Leakage, requires high to air-tightness and to adjust the refrigeration system of throttle resistance repeatedly and not apply to.And it is difficult when changing valve element
With the valve element model needed for determination, this causes its application to be very limited.In addition, conventional throttle mechanism does not have at this stage
The standby function of blocking flow of fluid, and some refrigeration systems need to close choke valve under some conditions, this allows for existing normal
Throttle mechanism is difficult to meet use condition under such conditions.
The content of the invention
For the disadvantages described above or Improvement requirement of prior art, working medium can be accurately continuously adjusted the invention provides one kind
The choke valve of flow resistance, can continuously adjust throttle resistance and can block flow of fluid, be adapted to more operating modes.
To achieve the above object, it is proposed, according to the invention, can accurately continuously adjust the section of Working fluid flow resistance there is provided a kind of
Flow valve, it is characterised in that including valve body, bonnet, valve rod, valve element and handwheel, wherein,
The inside valve pocket of the valve body is divided into the first valve pocket and the second valve pocket, and one end of the valve body is provided with the first working medium stream
Connect and the second working medium circulation interface is provided with mouth and its side wall, and the first working medium circulation interface and the second working medium circulation interface
Connected respectively with the first valve pocket and the second valve pocket of the valve body；
The bonnet is arranged on the valve body, and the inner and outer wall of the bonnet has each extended over inner convex platform and outer
Sealing nut is threaded with boss, the inner convex platform, being provided with sealing between the sealing nut and the inner convex platform fills out
Material；
The valve body is stretched into one end of the valve rod after passing through the outer lug boss, inner convex platform and the sealing nut, and
The end is fixedly connected with the valve element, and the other end of the valve rod connects the handwheel；
The valve element is located in first valve pocket, and the threaded stem is connected in the outer lug boss；
The valve element can circulate the break-make of Interference fit controlled medium with first working medium, and the valve element is adjacent to the valve
Body is provided with helical groove on the outside of the inwall and the valve element at the first valve pocket, the helical groove connects first valve
Chamber and the second valve pocket, for regulation Working fluid flow resistance.
Preferably, the valve element is provided with male cone (strobilus masculinus) close to one end of first working medium circulation interface, the valve body
Inwall is provided with the inner conical surface coordinated with the male cone (strobilus masculinus) in the position corresponding to the male cone (strobilus masculinus), described for opening and blocking
First working medium circulation interface.
Preferably, the material of the valve element is steel or copper, and the material of the valve body is steel or copper, and the valve element and valve
Body coordinates for gap.
Preferably, the valve body has integrally formed first cylindrical portion and the second cylindrical portion, and their inner chamber point
Do not form the first valve pocket and the second valve pocket, the internal diameter and external diameter of first cylindrical portion be respectively smaller than the second cylindrical portion internal diameter and
External diameter.
Preferably, the handwheel is provided with outer cover close to one end of the outer lug boss, and the outer lug boss stretches into the outer cover
It is interior.
Preferably, scale is provided with the outer lug boss, for coordinating observation valve element to stretch into described the with the outer cover
The length of one valve pocket.
In general, by the contemplated above technical scheme of the present invention compared with prior art, it can obtain down and show
Beneficial effect：
1) present invention has the ability of regulation throttle resistance, and degree of regulation is high, and adjustable range is big, without tearing open during regulation
Choke valve is unloaded, for needing the system of frequent regulation operating mode, great convenience is brought.
2) this choke valve can be used in the measurement of optimal throttle resistance, and fine adjustment throttle resistance is optimal experimental to obtain
Can, optimal throttle resistance is determined by the display scale on now choke valve.
3) this choke valve has the function of blocking flow of fluid, has widened its application.
Brief description of the drawings
Fig. 1 is the simplified schematic diagram of the present invention.
Fig. 2 is schematic diagram when outer cover coordinates with the scale on valve body in the present invention.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.As long as in addition, technical characteristic involved in each embodiment of invention described below
Not constituting conflict each other can just be mutually combined.
Reference picture 1, Fig. 2, it is a kind of accurately to continuously adjust the choke valve of Working fluid flow resistance, including valve body 1, bonnet 6,
Valve rod 5, valve element 2 and handwheel 8, wherein,
The inside valve pocket of the valve body 1 is divided into the first valve pocket 15 and the second valve pocket 4, and one end of the valve body 1 is provided with first
The second working medium circulation interface 13, and the first working medium circulation interface 14 and second are provided with working medium circulation interface 14 and its side wall
Working medium circulation interface 13 is connected with the first valve pocket 15 and the second valve pocket 4 of the valve body 1 respectively；
The bonnet 6 is arranged on the valve body 1, and the inner and outer wall of the bonnet 6 has each extended over inner convex platform
16 and outer lug boss 17, be threaded with sealing nut 7 on the inner convex platform 16, the sealing nut 7 and the inner convex platform 16 it
Between be provided with airtight and watertight padding 11；
The valve body is stretched into one end of the valve rod 5 after passing through the outer lug boss 17, inner convex platform 16 and the sealing nut 7
1, and the end is fixedly connected with the valve element 2, and the other end of the valve rod 5 connects the handwheel 8；Preferably, handwheel 8 passes through spiral shell
Nail is connected on valve rod 5, therefore detachably；
The valve element 2 is located in first valve pocket 15, and the valve rod 5 is threaded in the outer lug boss 17；
The valve element 2 can coordinate the break-make of controlled medium with first working medium circulation interface 14, and the valve element 2 is adjacent to institute
The outside for stating inwall and the valve element 2 of the valve body 1 at the first valve pocket 15 is provided with helical groove 3, and the helical groove 3 is connected
The valve pocket 4 of first valve pocket 15 and second, for regulation Working fluid flow resistance.
Further, the valve element 2 is provided with male cone (strobilus masculinus), the valve body close to one end of first working medium circulation interface 14
1 inwall is provided with the inner conical surface coordinated with the male cone (strobilus masculinus) in the position corresponding to the male cone (strobilus masculinus), for opening and blocking
The first working medium circulation interface 14.
Further, the material of the valve element is steel or copper, and the material of the valve body is steel or copper, and the valve element and valve
Body coordinates for gap.
Further, the valve body 1 has integrally formed first cylindrical portion and the second cylindrical portion, and their inner chamber point
The first valve pocket 15 and the second valve pocket 4 are not formed, and the internal diameter and external diameter of first cylindrical portion are respectively smaller than the interior of the second cylindrical portion
Footpath and external diameter.
Further, the handwheel 8 is provided with outer cover 10 close to one end of the outer lug boss 17, and the outer lug boss 17 stretches into institute
State in outer cover 10.
Further, scale is provided with the outer lug boss 17, for coordinating observation valve element 2 to stretch into institute with the outer cover 10
State the length of the first valve pocket 15.
Further, it is provided with sealing ring 12 between the bonnet 6 and the valve body 1.
When the outside of valve element 2 coordinates with the internal face of valve body 1, the helical groove 3 on the surface of valve element 2 is formed flow area
Less closed runner, the runner possesses throttling capacity, and the depth of the first valve pocket is inserted by adjusting spool 2, can be adjusted close
The length of runner is closed, so as to adjust the size of throttle resistance.
The main body of valve body 1 is made up of the cylinder of two sections of different inner diameters, and the second barrel bore of valve body 1 is more than valve element 2
Diameter, after a part for valve element 2 exits the first cylinder being engaged, valve element 2 exits the spiral shell on the part surface of the first valve pocket
Rotation groove would not form closed runner, now hardly possess throttling capacity, it is possible thereby to which the insertion depth of adjusting spool 2 comes
The length of the perficial helical groove 3 of adjusting spool 2 formation closed flow, so as to adjust throttle resistance.
Accurate adjustment of the invention in order to realize the insertion depth to valve element 2, the valve rod 5 being connected with valve element 2 and bonnet 6
It is connected by screw thread 9 between outer lug boss 17, the handwheel 8 of the one end of rotary valve rod 5 can more accurately adjusting spool 2
Insertion depth, while valve rod 5 and the cooperation of the screw thread of outer lug boss 17 it also avoid valve element 2 and voluntarily slided in the presence of chock pressure difference
It is dynamic.
When valve element 2 is inserted into the bottommost of valve body 1, two conical surfaces can be bonded to each other so as to block the flowing of fluid, this sets
The choke valve that meter makes it possible to accurately continuously adjust Working fluid flow resistance also possesses the function of ending flow of fluid.
The material of airtight and watertight padding can be selected according to operating temperature and the property of fluid so that the choke valve adapts to tool
Standby wider applicable situation.
Generally the first working medium circulation interface 14 of selection valve body 1 is used as working medium entrances, the second working medium circulation interface
13 as sender property outlet, and now all sealing surfaces are all in low-pressure side, and sealing surface pressure-bearing is smaller, and whole valve is difficult leakage.But,
Throttling is generally accompanied with the reduction of temperature, and encapsulant has certain temperature resistant range, and temperature after throttling is too low so that close
When closure material is difficult to bear, the second working medium of valve body 1 can be selected to circulate interface 13 as working medium entrances, the circulation of the first working medium connects
Mouth 14 is as sender property outlet, and now encapsulant is before flow restriction, and the temperature around encapsulant can be of a relatively high.
In order that the regulation of valve rod 5 is more accurate, while in order to avoid the pressure difference before and after throttling causes valve element 2 in valve body 1
Interior automatic moving, is connected between valve rod 5 and bonnet 6 by screw thread 9.The length of screw thread is more than the axial length of valve element 2 on valve rod 5
To ensure having enough adjustable ranges, the pitch of screw thread can be selected according to required degree of regulation, and pitch gets over minor adjustment essence
Degree is higher.
As shown in Fig. 2 there is scale on the surface of outer lug boss 17 of bonnet 6, outer cover 10 is fixed with adjusting handle 8, when adjusting handle 8
During rotation, the relative altitude of outer cover 10 can also change therewith, and the scale of the lower edge of outer cover 10 alignment characterizes the insertion depth of valve element,
It is hereby achieved that the size of throttle resistance.Outer cover is also prevented from the infringement of dust or other debris to threaded stem, so that
Improve the life-span of valve.
Fluid enters from the first working medium circulation interface 14 of valve body, and working medium is throttled after helical groove 3, after throttling
Fluid enters the second valve pocket 4, and the working medium into the second valve pocket 4 eventually flows out from the second working medium circulation interface 13.
The selection of part (valve body 1, valve element 2, sealing structure etc.) according to the parameters such as the pressure of working medium, temperature, corrosivity come
Selection, as long as material selection is suitable, the present invention can adapt to different working medium.
The structure of whole choke valve is relatively simple, and the processing of each several part is also uncomplicated, each main parts size, for example valve body 1,
Valve element 2, valve rod 5, bonnet 6 can be processed by the way of casting, and portion mating surface is using machining, such as valve element and valve body
The surface of cooperation and the helical groove of valve element etc..Generally speaking, structure design of the invention is simplified rationally, it is easy to processed, and nothing
Easy damage structure.
As it will be easily appreciated by one skilled in the art that the foregoing is merely illustrative of the preferred embodiments of the present invention, it is not used to
The limitation present invention, any modifications, equivalent substitutions and improvements made within the spirit and principles of the invention etc., it all should include
Within protection scope of the present invention.
Claims (6)
1. a kind of can accurately continuously adjust the choke valve of Working fluid flow resistance, it is characterised in that including valve body, bonnet, valve rod,
Valve element and handwheel, wherein,
The inside valve pocket of the valve body is divided into the first valve pocket and the second valve pocket, and one end of the valve body is provided with the circulation of the first working medium and connect
The second working medium circulation interface, and the first working medium circulation interface and the second working medium circulation interface difference are provided with mouth and its side wall
Connected with the first valve pocket and the second valve pocket of the valve body；
The bonnet is arranged on the valve body, and the inner and outer wall of the bonnet has each extended over inner convex platform and evagination
Sealing nut is threaded with platform, the inner convex platform, airtight and watertight padding is provided between the sealing nut and the inner convex platform；
The valve body, and the end are stretched into one end of the valve rod after passing through the outer lug boss, inner convex platform and the sealing nut
The valve element is fixedly connected with, the other end of the valve rod connects the handwheel；
The valve element is located in first valve pocket, and the threaded stem is connected in the outer lug boss；
The valve element can circulate the break-make of Interference fit controlled medium with first working medium, and the valve element is adjacent to the valve body and exists
Be provided with helical groove on the outside of inwall and the valve element at first valve pocket, the helical groove connect first valve pocket and
Second valve pocket, for regulation Working fluid flow resistance.
2. a kind of the choke valve of Working fluid flow resistance can be accurately continuously adjusted according to claim 1, it is characterised in that
The valve element is provided with male cone (strobilus masculinus) close to one end of first working medium circulation interface, and the inwall of the valve body is outer corresponding to this
The position of the conical surface is provided with the inner conical surface coordinated with the male cone (strobilus masculinus), is connect for opening and blocking the first working medium circulation
Mouthful.
3. a kind of the choke valve of Working fluid flow resistance can be accurately continuously adjusted according to claim 1, it is characterised in that
The material of the valve element is steel or copper, and the material of the valve body is steel or copper, and the valve element and valve body are gap cooperation.
4. a kind of the choke valve of Working fluid flow resistance can be accurately continuously adjusted according to claim 1, it is characterised in that
The valve body has integrally formed first cylindrical portion and the second cylindrical portion, and their inner chamber formed respectively the first valve pocket and
Second valve pocket, the internal diameter and external diameter of first cylindrical portion are respectively smaller than the internal diameter and external diameter of the second cylindrical portion.
5. a kind of the choke valve of Working fluid flow resistance can be accurately continuously adjusted according to claim 1, it is characterised in that
The handwheel is provided with outer cover close to one end of the outer lug boss, and the outer lug boss is stretched into the outer cover.
6. a kind of the choke valve of Working fluid flow resistance can be accurately continuously adjusted according to claim 5, it is characterised in that
Scale is provided with the outer lug boss, the length that valve element stretches into first valve pocket is observed for coordinating with the outer cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710350071.8A CN107191606B (en) | 2017-05-18 | 2017-05-18 | A kind of throttle valve that can accurately continuously adjust Working fluid flow resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710350071.8A CN107191606B (en) | 2017-05-18 | 2017-05-18 | A kind of throttle valve that can accurately continuously adjust Working fluid flow resistance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107191606A true CN107191606A (en) | 2017-09-22 |
| CN107191606B CN107191606B (en) | 2019-06-11 |
Family
ID=59872957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710350071.8A Active CN107191606B (en) | 2017-05-18 | 2017-05-18 | A kind of throttle valve that can accurately continuously adjust Working fluid flow resistance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107191606B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110030421A (en) * | 2019-03-20 | 2019-07-19 | 岳阳林纸股份有限公司 | A kind of anti-corrosion type one-way throttle valve |
| CN111469053A (en) * | 2019-01-24 | 2020-07-31 | 中国石油天然气集团有限公司 | Sand valve and sandblast rust cleaning system |
| CN112974872A (en) * | 2021-02-10 | 2021-06-18 | 霍山嘉远智能制造有限公司 | Internal and external cooling tool apron for lathe |
| CN116139634A (en) * | 2022-12-29 | 2023-05-23 | 绍兴越信环保科技有限公司 | Flue gas filtering pretreatment device based on filler with adsorption function |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1280035A (en) * | 1960-11-16 | 1961-12-29 | Gaz De France | Fluid flow control valve |
| GB894360A (en) * | 1959-01-30 | 1962-04-18 | Aladdin Ind Ltd | Improvements in or relating to flow controlling devices |
| JP2004108763A (en) * | 2002-08-30 | 2004-04-08 | Daikin Ind Ltd | Electric expansion valve and freezer |
| JP2006266666A (en) * | 2005-02-28 | 2006-10-05 | Daikin Ind Ltd | Expansion valve and freezing apparatus |
| CN1914466A (en) * | 2004-02-10 | 2007-02-14 | 大金工业株式会社 | Expansion valve of refrigerating apparatus |
| CN204267771U (en) * | 2014-12-03 | 2015-04-15 | 江苏金石富源机械有限公司 | A kind of wear-resisting hole plate type throttle valve with instruction limit stoper |
| CN105065682A (en) * | 2015-09-07 | 2015-11-18 | 盐城工学院 | Cage sleeve type throttle valve |
-
2017
- 2017-05-18 CN CN201710350071.8A patent/CN107191606B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB894360A (en) * | 1959-01-30 | 1962-04-18 | Aladdin Ind Ltd | Improvements in or relating to flow controlling devices |
| FR1280035A (en) * | 1960-11-16 | 1961-12-29 | Gaz De France | Fluid flow control valve |
| JP2004108763A (en) * | 2002-08-30 | 2004-04-08 | Daikin Ind Ltd | Electric expansion valve and freezer |
| CN1914466A (en) * | 2004-02-10 | 2007-02-14 | 大金工业株式会社 | Expansion valve of refrigerating apparatus |
| JP2006266666A (en) * | 2005-02-28 | 2006-10-05 | Daikin Ind Ltd | Expansion valve and freezing apparatus |
| CN204267771U (en) * | 2014-12-03 | 2015-04-15 | 江苏金石富源机械有限公司 | A kind of wear-resisting hole plate type throttle valve with instruction limit stoper |
| CN105065682A (en) * | 2015-09-07 | 2015-11-18 | 盐城工学院 | Cage sleeve type throttle valve |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111469053A (en) * | 2019-01-24 | 2020-07-31 | 中国石油天然气集团有限公司 | Sand valve and sandblast rust cleaning system |
| CN111469053B (en) * | 2019-01-24 | 2021-05-28 | 中国石油天然气集团有限公司 | Sand valve and sandblast rust cleaning system |
| CN110030421A (en) * | 2019-03-20 | 2019-07-19 | 岳阳林纸股份有限公司 | A kind of anti-corrosion type one-way throttle valve |
| CN112974872A (en) * | 2021-02-10 | 2021-06-18 | 霍山嘉远智能制造有限公司 | Internal and external cooling tool apron for lathe |
| CN112974872B (en) * | 2021-02-10 | 2024-01-26 | 霍山嘉远智能制造有限公司 | Internal and external cooling tool apron for lathe |
| CN116139634A (en) * | 2022-12-29 | 2023-05-23 | 绍兴越信环保科技有限公司 | Flue gas filtering pretreatment device based on filler with adsorption function |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107191606B (en) | 2019-06-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107191606A (en) | It is a kind of accurately to continuously adjust the choke valve of Working fluid flow resistance | |
| EP3171058B2 (en) | Flow control valve | |
| WO2017024795A1 (en) | Electronic expansion valve | |
| CN109114237A (en) | Motor-driven valve and refrigerating circulation system | |
| US10465675B2 (en) | Fluid valve | |
| CN109648372A (en) | A kind of knife handle suitable for ultralow temperature medium cooling and lubricating | |
| CN109114284A (en) | Motor-driven valve and refrigerating circulation system | |
| CN102741627B (en) | Refrigeration valve block | |
| JPH086986B2 (en) | Refrigerant expansion device | |
| CN103775685B (en) | A kind of adjustable screw thread throttling refrigeration element | |
| EP3306149B1 (en) | Throttle device and refrigeration cycle system with same | |
| CN204513864U (en) | Throttling arrangement and possess the refrigerating circulation system of this throttling arrangement | |
| CN107542960A (en) | One kind fine setting nodal pattern throttling stop valve valve core structure | |
| US7823395B2 (en) | Universal coupling device | |
| US3213888A (en) | Hydraulic metering valves | |
| US20040188650A1 (en) | Flow-rate adjustment valve for fluids, particularly refrigeration fluids | |
| JP7359576B2 (en) | Flow divider and refrigeration cycle equipment | |
| JP2019039461A (en) | Flow regulating valve | |
| WO2022012303A1 (en) | Stop valve | |
| CN209622069U (en) | Cold air regulating valve | |
| CN206300386U (en) | Air-conditioner and its electric expansion valve | |
| CN108253671A (en) | Throttle valve | |
| RU2667057C1 (en) | Wide-flow pressure regulator | |
| CN217539638U (en) | Electronic expansion valve | |
| CN217502602U (en) | Electronic expansion valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |