CN207278898U

CN207278898U - Throttling stop valve and there is its air-conditioning system

Info

Publication number: CN207278898U
Application number: CN201721371791.4U
Authority: CN
Inventors: 不公告发明人
Original assignee: Zhejiang Sanhua Intelligent Controls Co Ltd
Current assignee: Zhejiang Sanhua Intelligent Controls Co Ltd
Priority date: 2017-10-23
Filing date: 2017-10-23
Publication date: 2018-04-27
Anticipated expiration: 2027-10-23

Abstract

The utility model discloses a kind of throttling stop valve and there is its air-conditioning system, the throttling stop valve includes the valve body with valve chamber and the valve rod in the valve chamber, the valve body also has vertical joint mouth and the horizontal interface connected with the valve chamber, and the vertical joint mouth is connected by valve port portion with the valve chamber；The valve port portion includes orifice segment；The spool with throttling through hole is further included, the spool can be moved down to be abutted with the valve port portion between the valve port portion and the valve rod along the valve chamber, or be moved up along the valve chamber to depart from the valve port portion；Flexible component is abutted between the spool and the valve port portion, further includes the position limiting structure for limiting the elastomeric element position.The structure design of the throttling stop valve can support spool and position, and reduce the probability of spool offset, while also avoid the vibration during spool moves up and down, and noise is small.

Description

Throttling stop valve and there is its air-conditioning system

Technical field

Refrigeration system technical field is the utility model is related to, more particularly to a kind of throttling stop valve and there is its air-conditioning System.

Background technology

Within air-conditioning systems, shut-off valve is mainly used for connecting indoor unit and outdoor unit, it has cutoff function.

Throttling component is also needed in air-conditioning system, it is at present, common in air-conditioning system to throttle to realize throttling function It is main capillary, assisted capillary, filter and check valve to filter device.

Shut-off valve and throttling filtration apparatus are relatively independent component in air-conditioning system pipeline, mainly using welding manner It is connected in pipeline, because parts are more, correspondingly, solder joint is more, easily produces leakage, and occupied space is big.

To solve the above problems, applicant proposed added in the valve chamber of shut-off valve with throttling through hole spool, and Valve port portion is set to the scheme of throttle structure, under the pressure effect of incoming fluid, which can be in the valve port portion of shut-off valve Moved up and down between valve rod, the effect of bidirectional throttle, cut-off are realized with the throttle structure by its throttling through hole and valve port portion The realization principle of function is similar with conventional shut-off valve, compresses spool by valve rod and blocks its throttling through hole to realize.

However, finding in practical applications, the problem of which easily deviates there are spool, and noise is big.

Utility model content

The purpose of this utility model is to provide a kind of throttling stop valve, and the structure design of the throttling stop valve can be to spool Support positioning, reduces the probability of spool offset, while also avoid the vibration during spool moves up and down, and noise is small.

In order to solve the above technical problems, the utility model provides a kind of throttling stop valve, including the valve body with valve chamber and Valve rod in the valve chamber, the valve body also have vertical joint mouth and the horizontal interface connected with the valve chamber, the vertical joint mouth Connected by valve port portion with the valve chamber；The valve port portion includes orifice segment；

The spool with throttling through hole is further included, the spool, and can between the valve port portion and the valve rod Move down along the valve chamber to be abutted with the valve port portion, or moved up along the valve chamber to depart from the valve port portion；The spool with Flexible component is abutted between the valve port portion, further includes the position limiting structure for limiting the elastomeric element position.

Throttling stop valve provided by the utility model, is provided with elastomeric element between spool and valve port portion, and with limit The position limiting structure of the elastomeric element position is made, in this way, spool is supported by elastomeric element, when fluid is flowed into from horizontal interface, is being flowed Under the effect of body pressure, when spool moves down, elasticity of compression component, due to the support of elastomeric element, spool movement is more steady, Because the position of elastomeric element is limited by position limiting structure, spool is not easy to shift in moving process, when fluid is from vertical joint Mouth flows into, and under Fluid pressure effect, when spool moves up, elastomeric element, which resets, upsprings, the equally support in elastomeric element Under spacing, the movement of spool is steady and is not easy to deviate, that is to say, that during two-way fluid flows, spool can be put down Steady movement, and by the support limit of elastomeric element, will not vibrate, reduce making an uproar in the throttling stop valve course of work Sound.

The valve port portion and the junction of the valve chamber have ladder directed downwardly formed with step surface upward, the spool Face, the upper end of the elastomeric element are connected to the cascaded surface, and the lower end of the elastomeric element is connected to the step surface；It is described Cascaded surface and the step surface form the position limiting structure.

The spool includes spool main body and along the axially extended first boss in the lower end of the spool main body, the spool The lower face of main body forms the cascaded surface, and the first boss is inserted into inside the elastomeric element.

The perisporium of the spool main body is equipped with the convex portion that two or more extends radially, center to the institute of the spool main body The radial dimension for stating convex portion is adapted with the radius of the valve chamber；Between the periphery wall of the spool main body and the valve chamber inner wall Form runner.

The outside diameter of the spool main body is adapted with the internal diameter of the valve chamber, and the circumference of the spool main body has connection institute State the straight slot above and below spool main body.

The spool further includes the second boss along the top axial stretching of the spool main body.

When the spool is abutted with the valve port portion, the orifice segment is connected with the throttling through hole；

When the spool departs from the valve port portion, the horizontal interface passes through the valve port portion, the spool and the valve chamber The runner formed between inner wall and the perpendicular orifice；

The valve rod can be moved down along the valve chamber, the spool is pressed against the valve port portion, and block the section Recirculation hole, or moved up along the valve chamber, to form the space of the spool axial movement.

The valve port portion further includes the taper hole section above the orifice segment, and the spool is supported with the valve port portion When connecing, the lower end of the spool and the conical inboard wall of the taper hole section form linear sealing.

Filter element is equipped with the horizontal interface and/or the vertical joint mouth.

The utility model also provides a kind of air-conditioning system, including indoor interchanger and outdoor interchanger, the interior exchange Machine is equipped with the throttling stop valve described in any of the above-described with the pipeline that the outdoor interchanger is connected.

Since above-mentioned throttling stop valve has above-mentioned technique effect, so the air-conditioning system with the throttling stop valve also has There is corresponding technique effect, discussion is not repeated herein.

Brief description of the drawings

Figures 1 and 2 show that in specific embodiment throttling stop valve diagrammatic cross-section, wherein, Fig. 1 is connect from horizontal for fluid Mouthful flow into when working status, Fig. 2 be fluid from vertical joint mouth flow into when working status；

Fig. 3 is the diagrammatic cross-section of the valve body of throttling stop valve in specific embodiment；

Fig. 4 is the structure diagram of the spool of throttling stop valve in specific embodiment；

Fig. 5 is the front view of spool shown in Fig. 4.

Wherein, one-to-one relationships of the Fig. 1 into Fig. 5 between component names and reference numeral is as follows：

Valve body 10, valve port portion 11, orifice segment 111, taper hole section 112, valve chamber 12, horizontal interface 13, vertical joint mouth 14, step Face 15；

Valve rod 20；

Spool 30, throttle through hole 30a, spool main body 31, convex portion 311, first boss 32, second boss 33；

Spring 40, filter element 50.

Embodiment

In order to make those skilled in the art more fully understand the utility model, below in conjunction with the accompanying drawings and it is embodied The utility model is described in further detail for mode.

Please refer to Fig.1 and Fig. 2, figures 1 and 2 show that in specific embodiment throttling stop valve diagrammatic cross-section, wherein, Fig. 1 be fluid from horizontal interface flows into when working status, Fig. 2 for fluid from vertical joint mouth flow into when working status.

It is pointed out that the noun of locality mentioned in this article it is horizontal, vertical, it is upper and lower etc. be with Fig. 1 into Fig. 5 parts position Defined on the basis of mutual alignment relation in figure and between parts, the use of the noun of locality is intended merely to description technique The convenience of scheme, it will be appreciated that the use of the noun of locality does not form limiting of its scope.

The throttling stop valve that the embodiment provides, including valve body 10 and valve rod 20；Wherein, valve body 10 has valve chamber 12, horizontal stroke Interface 13 and vertical joint mouth 14, valve chamber 12 is interior to be equipped with valve port portion 11, and vertical joint mouth 14 is connected with valve port portion 11, horizontal interface 13 and valve chamber 12 Connection；Horizontal interface 13 and vertical joint mouth 14 can be respectively and fixedly connected with external runner pipe, by throttling stop valve connection in system pipeline.

Valve rod 20 is arranged in 12 in valve chamber, and in the embodiment, valve rod 20 is still used with valve body 10 and is threadedly coupled, rotation valve rod When 20, under the action of screw thread pair, valve rod 20 can be moved up and down along valve chamber 12.

In the embodiment, throttling stop valve further includes spool 30, which has throttling through hole 30a, and spool 30 is located at It between valve port portion 11 and valve rod 20, and can move down along valve chamber 12 to be abutted with valve port portion 11, or be moved up along valve chamber 12 to depart from Valve port portion 11, and be configured to：

When spool 30 is abutted with valve port portion 11, the orifice segment 111 in valve port portion 11 is connected with throttling through hole 30a；

When spool 30 departs from valve port portion 11, horizontal interface 13 passes through the runner, the valve that are formed between 12 inner wall of spool 30 and valve chamber Oral area 11 is connected with vertical joint mouth 14.

The throttling stop valve is arranged between valve rod 20 and valve port portion 11 after setting spool 30, when rotation valve rod 20 moves down When, spool 30 can be pressed against valve port portion 11 by valve rod 20, and block the throttling through hole 30a of spool 30, so as to separate horizontal interface 13 with the connection of vertical joint mouth 14, after rotation valve rod 20 moves up, can step down to form the space that spool 30 moves up and down.

As above after designing, with reference to figure 1, when fluid is flowed into from the horizontal interface 13 of throttling stop valve, in the work of Fluid pressure Under, promote spool 30 to move down and abutted with valve port portion 11, at this time the throttling through hole 30a of spool 30 and the orifice segment in valve port portion 11 111 connect, fluid warp knuckle recirculation hole 30a, the outflow vertical joint mouth of valve port portion 11 14, under the working status, throttling through hole 30a, throttling Hole section 111 plays throttling action, and throttle degree ultimately depends on aperture less one in throttling through hole 30a, orifice segment 111 Person；With reference to figure 2, when fluid is flowed into from the vertical joint mouth 14 of throttling stop valve, under the action of Fluid pressure, promote on spool 30 Move, disengage it from valve port portion 11, at this time, fluid flows out horizontal interface 13 through the runner between valve port portion 11, spool 30 and valve chamber, should Under working status, the orifice segment 111 in valve port portion 11 plays throttling action to fluid.

During actual setting, according to the demands of two flow directions, to determine orifice segment 111, the size of throttling through hole 30a, and Both magnitude relationships.

As described above, the throttling stop valve can either realize cutoff function, and it can realize bidirectional throttle function, applicability Extensively, when being applied in refrigeration system pipeline, the setting of orifice union can be saved, not only saves cost, additionally it is possible to reduce pipe Number of welds in road, reduces leakage probability.

In specific scheme, which further includes the spring 40 being connected between spool 30 and valve port portion 11, this Sample, when fluid is flowed into from vertical joint mouth 14, spool 30 is jacked up upwards, under the supporting role of spring 40, can avoid spool 30 Vibration, reduces noise.

Moved down it should be appreciated that the elastic force setting of spring 40 should not influence spool 30 under Fluid pressure acts on It is dynamic.

It is appreciated that in addition to spring 40, other elastomeric elements can be also set between spool 30 and valve port portion 11, as long as Support can be provided to spool 30 when spool 30 is jacked up, and not interfere with the movement of spool 30.

Meanwhile the throttling stop valve further includes the position limiting structure of limitation elastomeric element position.

As above, after setting elastomeric element between spool 30 and valve port portion 11, spool 30 is supported by elastomeric element, works as stream Body is flowed into from horizontal interface 13, under Fluid pressure effect, when spool 30 moves down, and elasticity of compression component, due to elastomeric element Support, spool 30 moves more steady, and because the position of elastomeric element is limited by position limiting structure, spool 30 is in moving process It is not easy to shift, when fluid is flowed into from vertical joint mouth 14, under Fluid pressure effect, when spool 30 moves up, elastic portion Part, which resets, upsprings, equally elastomeric element support and it is spacing under, the movement of spool 30 is steady and is not easy to deviate, that is to say, that During two-way fluid flows, spool 30 can be moved smoothly, and by the support limit of elastomeric element, will not be shaken It is dynamic, reduce the noise in the throttling stop valve course of work.

Please also refer to Fig. 3, Fig. 3 is the diagrammatic cross-section of the valve body of throttling stop valve in specific embodiment.

In specific scheme, valve port portion 11 further includes the taper hole section 112 positioned at orifice segment 111 above, spool 30 and When valve port portion 11 abuts, the lower end of spool 30 forms linear sealing with the conical inboard wall of taper hole section 112.

Specifically, it is also formed with step surface 15 upward, the lower end of spring 40 in taper hole section 112 and 12 junction of valve chamber It is connected to the step surface 15；Specifically, also cascaded surface directed downwardly can be set on spool 30 so that the upper end of spring 40 is connected to this Cascaded surface, in this way, step surface 15 and cascaded surface form foregoing position limiting structure, realizes the support positioning to spring 40.

Certainly, during actual setting, the orifice segment 111 in valve port portion 11 is alternatively planar structure with the junction of valve chamber 12, That is, valve chamber 12 is directly connected with orifice segment 111, centre is not provided with the taper hole section 112 of transition, it will be understood that valve Chamber 12 forms the structure type of stepped hole with orifice segment 111, is spool 30 in this way, when spool 30 is abutted with valve port portion 11 Lower face is bonded to form sealing with valve chamber 12 with the cascaded surface upward of 111 junction of orifice segment, belongs to face sealing.Compared to The structure type of above-mentioned linear sealing, face sealing are higher for the requirement on machining accuracy of sealing surface.

Please also refer to Fig. 4 and Fig. 5, Fig. 4 is the structure diagram of the spool of throttling stop valve in specific embodiment；Fig. 5 For the front view of spool shown in Fig. 4.

In specific scheme, spool 30 includes spool main body 31, and the perisporium of spool main body 31 is equipped with two or more radially The convex portion 311 of stretching, wherein, the radial dimension of center to the convex portion 311 of spool main body 31 is adapted with the radius of valve chamber 12, this After sample assembling, spool 30 realizes the positioning of radial direction by convex portion 311 with valve chamber 12, avoids spool 30 from radially being shaken in valve chamber 12 It is dynamic, while the space formed between the perisporium of spool main body 31 and 12 inner wall of valve chamber is connected above and below spool main body 31, Form foregoing runner.

More specifically, convex portion 311 is specially along the axially extending strip convex portion of spool main body 31, multiple convex portions 311 It is evenly distributed with along the circumferential direction of spool main body 311, it is ensured that the stability that spool 30 moves up and down, prevents deflection.

Structure of the spool main body 31 equipped with three convex portions 311 is schematically illustrated in figure, it will be understood that during actual setting The number of convex portion 311 can be determined as needed.

Spool 30 can also be other structures in addition to said structure, such as, make the outside diameter of spool main body 31 and valve chamber 12 Internal diameter be adapted, open up the straight slot above and below connection spool main body 31 in the circumference of spool main body 31, it is foregoing to be formed Runner.Wherein, the concrete form of straight slot is unlimited, as long as the top valve chamber that spool 30 separates can be made to be connected i.e. with lower part valve chamber Can.

In specific scheme, spool 30 is further included along the axially extended first boss 32 in the lower end of spool main body 31, in this way, The top of spring 40 between spool 30 and valve port portion 11 can be sheathed on first boss 32, be supported with the lower end of spool main body 31 Connect, spring 40 is formed further spacing, it will be understood that after so designing, the lower face of spool main body 31 is foregoing rank Tread.Obviously, first boss 32 can extend into the taper hole section 112 in valve port portion 11, be abutted with the inner wall of taper hole section 112.

In addition, the upper end of spool main body 31 also is provided with axially extended second boss 33, in this way, making spool 30 be formed up and down Substantially symmetric structure, is conducive to the stationarity that spool 30 moves up and down.

In specific scheme, filter element 50 is equipped with the horizontal interface 13 and/or vertical joint mouth 14 of the throttling stop valve, with The impurity exempted from fluid is flowed into valve, blocks throttling passage.

In addition to above-mentioned throttling stop valve, the utility model also provides a kind of air-conditioning system, including indoor interchanger and room Outer interchanger, the interior interchanger are cut with the throttling that the pipeline that the outdoor interchanger is connected is equipped with described in any of the above-described Only valve.

It is described in detail above to throttling stop valve provided by the utility model and with its air-conditioning system.This Apply specific case in text to be set forth the principle and embodiment of the utility model, the explanation of above example is It is used to help understand the method and its core concept of the utility model.It should be pointed out that the ordinary skill people for the art For member, on the premise of the utility model principle is not departed from, some improvement and modification can also be carried out to the utility model, this A little improvement and modification are also fallen into the protection domain of the utility model claims.

Claims

1. throttling stop valve, it is characterised in that including the valve body (10) with valve chamber (12) and in the valve chamber (12) Valve rod (20), the valve body (10) also has vertical joint mouth (14) and the horizontal interface (13) connected with the valve chamber (12), described perpendicular Interface (14) is connected by valve port portion (11) with the valve chamber (12)；The valve port portion (11) includes orifice segment (111)；

The spool (30) with throttling through hole (30a) is further included, the spool (30) is located at the valve port portion (11) and the valve Between bar (20), and it can be moved down along the valve chamber (12) to be abutted with the valve port portion (11), or along the valve chamber (12) Move to depart from the valve port portion (11)；Flexible component is abutted between the spool (30) and the valve port portion (11), is further included Limit the position limiting structure of the elastomeric element position.

2. throttling stop valve according to claim 1, it is characterised in that the valve port portion (11) and the valve chamber (12) Junction has cascaded surface directed downwardly, the upper end of the elastomeric element formed with step surface (15) upward, the spool (30) The cascaded surface is connected to, the lower end of the elastomeric element is connected to the step surface (15)；The cascaded surface and the step Face (15) forms the position limiting structure.

3. throttling stop valve according to claim 2, it is characterised in that the spool (30) include spool main body (31) and The first boss (32) axially extended along the lower end of the spool main body (31), the lower face of the spool main body (31) form institute Cascaded surface is stated, the first boss (32) is inserted into inside the elastomeric element.

4. throttling stop valve according to claim 3, it is characterised in that the perisporium of the spool main body (31) is equipped with two The convex portion (311) extended radially above, the radial dimension and institute of the center of the spool main body (31) to the convex portion (311) The radius for stating valve chamber (12) is adapted；Stream is formed between the periphery wall and the valve chamber (12) inner wall of the spool main body (31) Road.

5. throttling stop valve according to claim 3, it is characterised in that the outside diameter of the spool main body (31) and the valve The internal diameter of chamber (12) is adapted, and the circumference of the spool main body (31), which has, to be connected above and below the spool main body (31) Straight slot.

6. according to claim 3-5 any one of them throttling stop valves, it is characterised in that the spool (30) is further included along institute State the second boss (33) that the top axial of spool main body (31) stretches out.

7. according to claim 1-5 any one of them throttling stop valves, it is characterised in that the spool (30) and the valve port When portion (11) abuts, the orifice segment (111) connects with the throttling through hole (30a)；

When the spool (30) departs from valve port portion (11), the horizontal interface (13) passes through the valve port portion (11), the valve The runner formed between core (30) and the valve chamber (12) inner wall is connected with the vertical joint mouth (14).

8. according to claim 1-5 any one of them throttling stop valves, it is characterised in that the valve port portion (11) further includes position Taper hole section (112) above the orifice segment (111), when the spool (30) abuts with the valve port portion (11), institute State the lower end of spool (30) and form linear sealing with the conical inboard wall of the taper hole section (112).

9. according to claim 1-5 any one of them throttling stop valves, it is characterised in that the horizontal interface (13) and/or institute State in vertical joint mouth (14) and be equipped with filter element (50).

10. air-conditioning system, including indoor interchanger and outdoor interchanger, it is characterised in that the interior interchanger and the room The pipeline of outer interchanger connection is equipped with claim 1-9 any one of them throttling stop valves.