CN204987578U - Throttling valve - Google Patents
Throttling valve Download PDFInfo
- Publication number
- CN204987578U CN204987578U CN201520524529.3U CN201520524529U CN204987578U CN 204987578 U CN204987578 U CN 204987578U CN 201520524529 U CN201520524529 U CN 201520524529U CN 204987578 U CN204987578 U CN 204987578U
- Authority
- CN
- China
- Prior art keywords
- spool
- throttle orifice
- spring
- choke valve
- elastomeric element
- 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.)
- Expired - Fee Related
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Abstract
The utility model provides a throttling valve, include valve body and the orifice that forms inside the valve body, the fluid is held by the second of first torrential flow to the orifice of orifice, and throttling valve still includes: the case sets up the second end department at the orifice, and formation is used for the passageway that overflows that the fluid passes through between the pore wall of case and orifice, regulation portion is connected with the case drive, adjusts the relative position of case and orifice to change the cross section that overflows the passageway. The utility model discloses a throttling valve has solved among the prior art problem that throttling valve can not the regulated flow effectively.
Description
Technical field
The utility model relates to fluid control technology field, in particular to a kind of choke valve.
Background technology
In prior art, the throttling arrangement that air-conditioner is conventional has electric expansion valve, heating power expansion valve, capillary, choke valve, wherein electric expansion valve, heating power expansion valve can according to feedback regulation cold medium flux, but cost is higher.But choke valve can not adjust flux, poor to the applicability of environment.
Utility model content
A kind of choke valve is provided in the utility model embodiment, can not the problem of adjust flux to solve choke valve in prior art.
For achieving the above object, the utility model provides a kind of choke valve, the throttle orifice comprising valve body and formed at valve inner, fluid flow to the second end of throttle orifice by the first end of throttle orifice, choke valve also comprises: spool, be arranged on the second end place of throttle orifice, between spool and the hole wall of throttle orifice, form the flow channels being used for fluid and passing through; Adjusting portion, drives with spool and is connected, the relative position of regulating spool and throttle orifice, with the cross section of modified circulation road.
Further, adjusting portion comprises elastomeric element, and spool is connected on elastomeric element, and elastomeric element applies towards the elastic force of the first end of throttle orifice spool.
Further, also comprise the restriction extended to form towards inner side by the inwall of valve body, the middle part of restriction is formed with throttle orifice, restriction is provided with the limited block for supporting spool, and spool is when supporting with limited block, and the cross-sectional area of flow channels is minimum.
Further, spool comprises interconnective main part and defining flange, and the corresponding limited block of defining flange is arranged, and spool is supported by defining flange and limited block.
Further, the external diameter of main part increases gradually, and the aperture of throttle orifice is increased gradually by throttle orifice first end to the second end.
Further, also comprise the distributary division being located at valve inner, distributary division is arranged on the second end of throttle orifice, and distributary division has fluid passage, and fluid passage is communicated with flow channels.
Further, distributary division is also provided with multiple split channel be communicated with fluid passage, and split channel is communicated to the outlet of choke valve.
Further, elastomeric element comprises: spring, and the first end of spring is connected to the side of spool away from throttle orifice; Spring lead, spring lead wears in the spring, and spring and spring lead are all positioned at fluid passage, and spring lead is fixedly connected on the inwall of valve body, and the second end of spring is fixedly connected on spring.
Further, elastomeric element is arranged on the side that spool deviates from throttle orifice.
Further, elastomeric element comprises: spring, is connected on spool; Spring lead, spring lead wears in the spring.
Throttle orifice in choke valve and spool coordinate the flow channels formed, and produce throttling action when fluid cooling medium flows through circulation road.Namely flow channels is the gap formed between the hole wall of throttle orifice and spool, the cross section size of flow channels is determined by the position of spool, by the relative position of adjusting portion regulating spool and throttle orifice, the size of the cross section of modified circulation road, choke valve thus realize regulable control is carried out to flow.
Accompanying drawing explanation
Fig. 1 is the structural representation of the choke valve of the utility model embodiment;
Fig. 2 is the structural representation of the choke valve partial enlargement of Fig. 1.
Description of reference numerals:
10, valve body; 11, throttle orifice; 20, spool; 21, main part; 22, defining flange; 30, elastomeric element; 31, spring; 32, spring lead; 41, flow channels; 50, restriction; 51, limited block; 60, distributary division; 61, fluid passage; 62, split channel.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail, but not as to restriction of the present utility model.
Shown in Fig. 1 and Fig. 2, according to embodiment of the present utility model, provide a kind of choke valve, special application carries out throttling to refrigerant within air-conditioning systems, choke valve is included in the throttle orifice 11 that valve body 10 inside is formed, and fluid flow to the second end of throttle orifice 11 by the first end of throttle orifice 11, and choke valve is also provided with spool 20 and adjusting portion, spool 20 is arranged on the second end place of throttle orifice 11, forms the flow channels 41 being used for fluid and passing through between the hole wall of spool 20 and throttle orifice 11.Adjusting portion drives with spool 20 and is connected, and the relative position of adjusting portion regulating spool 20 and throttle orifice 11, with the cross section of modified circulation road 41.
Throttle orifice 11 in choke valve and spool 20 coordinate the flow channels 41 formed, and produce throttling action when fluid cooling medium flows through circulation road 41.Namely flow channels 41 is the gap formed between the hole wall of throttle orifice 11 and spool 20, the cross section size of flow channels 41 is determined by the position of spool, by the relative position of adjusting portion regulating spool 20 with throttle orifice 11, the size of the cross section of modified circulation road 41, choke valve thus realize regulable control is carried out to flow.The selection of adjusting portion can be the screw rod supporting spool 20, or the driving lever of manual adjustments.
The choke valve of the present embodiment utilizes fluid pressure to automatically adjust to flow, and adjusting portion comprises elastomeric element 30, and spool 20 is connected on elastomeric element 30, and elastomeric element 30 pairs of spools 20 apply towards the elastic force of the first end of throttle orifice 11.Be specially: after fluid contributes to valve body 10 inside, because fluid is the second end flowing to throttle orifice from the first end of throttle orifice 11, therefore fluid can apply towards the pressure of throttle orifice 11 second extreme direction to spool 20, because elastomeric element 30 pairs of spools 20 are towards the first end direction applying elastic force of throttle orifice 11, after fluid pressure is greater than elastic force, spool 20 is under pressure and affects throttle orifice 11 dorsad and move, and then the gap between spool 20 and throttle orifice 11 hole wall becomes greatly, the cross section of flow channels 41 becomes large; After fluid pressure is less than elastic force, then spool 20 moves towards the first end direction of throttle orifice 11, and then the gap smaller between spool 20 and throttle orifice 11 hole wall, causes the cross section of flow channels 41 to diminish.Because fluid needs to flow through circulation road 41, so control the flow that flow channels 41 just can adjust choke valve, choke valve of the present utility model passes through the application of self structure and fluid pressure, can regulate flow, and do not need energising, provide cost savings.
In order to ensure that choke valve is when carrying out adjust flux by fluid pressure, also need the flow restriction ensureing that one, choke valve is minimum, so, choke valve in the present embodiment also comprises the restriction 50 extended to form towards inner side by the inwall of valve body 10, the middle part of restriction 50 is formed with throttle orifice 11, restriction 50 is provided with the limited block 51 for supporting spool 20, spool 20 is when supporting with limited block 51, and the cross-sectional area of flow channels 41 is minimum.When fluid pressure is much smaller than the elastic force of elastomeric element, spool 20 can be pushed to the position supported with limited block 51 by elastomeric element, and flow channels 41 cross-sectional area is at this moment minimum, and now the flow of choke valve is also the minimum discharge of choke valve.The position of limited block 51 can be arranged according to specific needs, and in some unshowned embodiments, limited block 51 is arranged on the inwall of throttle orifice 11, and when spool 20 extend into throttle orifice 11, limited block 51 pairs of spools 20 play counter-active effect.
Preferably, in the present embodiment, the first side of restriction 50 is positioned at the upstream end of fluid flowing, and the second side of restriction 50 is positioned at the downstream part of fluid flowing, second end of throttle orifice 11 is positioned at the second side of restriction 50, the downside in the second side of restriction 50 i.e. Fig. 2.Limited block 51 is arranged on the second side of restriction 50, and the side of limited block 51 restriction 50 dorsad extends.Spool 20 comprises interconnective main part 21 and defining flange 22, and the corresponding limited block 51 of defining flange 22 is arranged, and spool 20 is supported by defining flange 22 and limited block 51.In the present embodiment, main part 21 and defining flange 22 are integrated, when the quantitative change flowing into valve inner of fluid or refrigerant is few, after fluid pressure reduces, spool 20 resets towards throttle orifice 11 by elastomeric element 30, if fluid pressure is little after minimum, spool 20 is coordinated with supporting of limited block 51 by defining flange 22, the flow of the flow channels defined between the hole wall of spool 20 and throttle orifice 11 is minimum, and namely now the cross-sectional area of flow channels is minimum.As can be seen from Fig. 1, the external diameter of main part 21 increases gradually, and main part 21 is in coniform, and in order to the form fit with main part 21, the aperture of throttle orifice 11 is increased gradually by throttle orifice 11 first end to the second end, and a part of hole wall of throttle orifice 11 is the conical surface.
Choke valve also comprises the distributary division 60 being located at valve body 10 inside, distributary division 60 is arranged on the downstream part of the flow direction of the second end of throttle orifice 11, that is, distributary division 60 is positioned at the downside of restriction 50 in fig. 2, distributary division 60 has fluid passage 61, and fluid passage 61 is communicated with flow channels 41.Distributary division 60 is also provided with multiple split channel 62 be communicated with fluid passage 61, and the quantity of split channel 62 is multiple, is preferably 6.
In the present embodiment, elastomeric element 30 comprises spring 31 and spring lead 32, the first end of spring 31 is connected to the side of spool 20 away from throttle orifice 11, second end of spring 31 is fixedly connected on spring 31, spring lead 32 is located in spring 31, spring 31 and spring lead 32 are all positioned at fluid passage 61, and spring lead 32 is fixedly connected on the inwall of valve body 10.Throttle orifice 11 extends along the axis direction of valve body 10, and spring lead 32 extends along the axis direction of valve body 10.In the present embodiment, completed by spring 31 and elastic force is applied to spool 20, and positioned by spring lead 32 pairs of springs 31, spring 31 is avoided to produce distortion in loading process, spring 31 elastic force after being distorted is avoided to change, and then control the relation of elastic force and fluid pressure accurately, make the control flow of choke valve more accurate.
In the unshowned embodiment of one, the elastomeric element of the position of elastomeric element 30 and structure and above-described embodiment is had any different, and in this embodiment, elastomeric element 30 is arranged on the side that spool 20 deviates from throttle orifice 11.Elastomeric element 30 includes multiple spring 31 and multiple spring lead 32, spring 31 is connected on spool 20, the circumference of multiple spring 31 spool 20 is evenly arranged, multiple spring lead 32 is arranged with multiple spring 31 one_to_one corresponding, spring lead 32 is located in spring 31, in this embodiment, the overall structure of elastomeric element 30 is positioned at the side of distributary division 60, and spring lead 32 is connected on the first side of distributary division 60.The structure of this multiple spring makes elastic force larger, can tackle larger fluid pressure.In some unshowned embodiments, elastomeric element is only spring, this elastomeric element also can be arranged on throttle point in the side place of throttle orifice first end, and elastomeric element is pulling force to the elastic force that spool applies, and this vibrational power flow can complete above technique effect equally.
Certainly, be more than preferred embodiment of the present utility model.It should be pointed out that for those skilled in the art, under the prerequisite not departing from the utility model general principle, can also make some improvements and modifications, these improvements and modifications are also considered as protection domain of the present utility model.
Claims (10)
1. a choke valve, the throttle orifice (11) comprising valve body (10) and formed in valve body (10) inside, fluid flow to the second end of described throttle orifice (11) by the first end of described throttle orifice (11), it is characterized in that, described choke valve also comprises:
Spool (20), is arranged on the second end place of described throttle orifice (11), forms the flow channels (41) being used for fluid and passing through between the hole wall of described spool (20) and described throttle orifice (11);
Adjusting portion, drives with described spool (20) and is connected, and regulates the relative position of described spool (20) and described throttle orifice (11), to change the cross section of described flow channels (41).
2. choke valve according to claim 1, it is characterized in that, described adjusting portion comprises elastomeric element (30), described spool (20) is connected on described elastomeric element (30), and described elastomeric element (30) applies towards the elastic force of the first end of described throttle orifice (11) described spool (20).
3. choke valve according to claim 1, it is characterized in that, also comprise the restriction (50) extended to form towards inner side by the inwall of described valve body (10), the middle part of described restriction (50) is formed with described throttle orifice (11), described restriction (50) is provided with the limited block (51) for supporting described spool (20), described spool (20) is when supporting with described limited block (51), and the cross-sectional area of described flow channels (41) is minimum.
4. choke valve according to claim 3, it is characterized in that, described spool (20) comprises interconnective main part (21) and defining flange (22), the corresponding described limited block (51) of described defining flange (22) is arranged, and described spool (20) is supported by described defining flange (22) and described limited block (51).
5. choke valve according to claim 4, is characterized in that, the external diameter of described main part (21) increases gradually, and the aperture of described throttle orifice (11) is increased gradually by described throttle orifice (11) first end to the second end.
6. choke valve according to claim 2, it is characterized in that, also comprise and be located at the inner distributary division (60) of valve body (10), described distributary division (60) is arranged on the second end of described throttle orifice (11), described distributary division (60) has fluid passage (61), and described fluid passage (61) are communicated with described flow channels (41).
7. choke valve according to claim 6, it is characterized in that, described distributary division (60) is also provided with the split channel (62) that multiple and described fluid passage (61) is communicated with, and described split channel (62) is communicated to the outlet of described choke valve.
8. choke valve according to claim 6, is characterized in that, described elastomeric element (30) comprising:
Spring (31), the first end of described spring (31) is connected to the side of described spool (20) away from described throttle orifice (11);
Spring lead (32), described spring lead (32) is located in described spring (31), described spring (31) and described spring lead (32) are all positioned at described fluid passage (61), described spring lead (32) is fixedly connected on the inwall of described valve body (10), and the second end of described spring (31) is fixedly connected on described spring (31).
9. choke valve according to claim 2, is characterized in that, described elastomeric element (30) is arranged on the side that described spool (20) deviates from described throttle orifice (11).
10. choke valve according to claim 9, is characterized in that, described elastomeric element (30) comprising:
Spring (31), is connected on described spool (20);
Spring lead (32), described spring lead (32) is located in described spring (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520524529.3U CN204987578U (en) | 2015-07-20 | 2015-07-20 | Throttling valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520524529.3U CN204987578U (en) | 2015-07-20 | 2015-07-20 | Throttling valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204987578U true CN204987578U (en) | 2016-01-20 |
Family
ID=55121941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520524529.3U Expired - Fee Related CN204987578U (en) | 2015-07-20 | 2015-07-20 | Throttling valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204987578U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107061860A (en) * | 2017-06-21 | 2017-08-18 | 海盐县秦山液压机械厂 | A kind of joint with decompression function |
| CN109538799A (en) * | 2018-11-27 | 2019-03-29 | 邯郸学院 | A kind of improved throttle valve |
-
2015
- 2015-07-20 CN CN201520524529.3U patent/CN204987578U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107061860A (en) * | 2017-06-21 | 2017-08-18 | 海盐县秦山液压机械厂 | A kind of joint with decompression function |
| CN109538799A (en) * | 2018-11-27 | 2019-03-29 | 邯郸学院 | A kind of improved throttle valve |
| CN109538799B (en) * | 2018-11-27 | 2019-11-05 | 邯郸学院 | A kind of improved throttle valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160120 Termination date: 20210720 |