CN204574647U - A kind of choke valve with noise-reducing structure - Google Patents
A kind of choke valve with noise-reducing structure Download PDFInfo
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- CN204574647U CN204574647U CN201520108443.2U CN201520108443U CN204574647U CN 204574647 U CN204574647 U CN 204574647U CN 201520108443 U CN201520108443 U CN 201520108443U CN 204574647 U CN204574647 U CN 204574647U
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Abstract
The utility model discloses a kind of choke valve with noise-reducing structure, comprise the valve body (1) of tubulose, valve seat (2) is provided with in valve body (1), step-like axially extending bore (3) is formed in described valve seat (2), be provided with silencing means (4) in valve body (1), silencing means (4) is in the port of export of valve body (1); Described silencing means (4) comprises two screen packs (41), two screen packs (41) are separately fixed in filtration ring net (42), filtration ring net (42) is fixed on the madial wall of valve body (1), and molecular sieve (43) is filled in the inside of the valve body (1) between two screen packs (41).The refrigeration working medium flowed in choke valve can be carried out noise-reduction by it, it can noise reduction greatly by molecular sieve (43), and its integrated level is high, and it without the need to independently installing muffler on pipeline, reduce the installation time of assembly work personnel, reduce the amount of labour.
Description
Technical field:
The utility model relates to air-conditioning noise reduction technical field, relates to a kind of choke valve with noise-reducing structure in particular.
Background technology:
Existing Restrictive valve for air conditioner, its operation principle is refrigeration working medium flow section sudden contraction when flowing through valve, and rate of flow of fluid is accelerated, and pressure drop, the size of pressure drop depends on the ratio that flow section shrinks.The Main Function of throttle mechanism is reducing pressure by regulating flow.When the cold-producing medium saturated liquid of normal temperature high voltage flows through choke valve, become the refrigerant liquid of low-temp low-pressure and produce a little flash gas.And then the object that realization is outwardly absorbed heat.Because rate of flow of fluid is accelerated, pressure drop, just produce a large amount of noises, the measure of existing noise reduction, be install muffler in one end of choke valve, but the noise reduction of its muffler installed is limited, is arranged on choke valve and also needs specific mounting structure, and installation expends time in, and adds the workload of erector.
And its structure of existing muffler is very simple, its structure is generally be welded with the shaping sleeve of porous plate in housing, noise reduction is carried out by the sound deadening of porous plate, although it can carry out certain noise reduction, but, the noise elimination frequency band of the noise reduction of porous plate is limited, and in order to ensure better erasure effect, now in the housing of muffler, be also provided with the structures such as silencing cotton, but it makes gas flow space reduce, reduce gas flow effect, and its processing trouble of its interior welds sleeve, and efficiency is low, welding easily makes housing impaired, affects quality.
Utility model content:
The purpose of this utility model overcomes the deficiencies in the prior art, a kind of choke valve with noise-reducing structure is provided, the refrigeration working medium flowed in choke valve can be carried out noise-reduction by it, it can noise reduction greatly by molecular sieve, its integrated level is high, it without the need to independently installing muffler on pipeline, reduces the installation time of assembly work personnel, reduces the amount of labour.
The scheme that the utility model solve the technical problem is:
Have a choke valve for noise-reducing structure, comprise the valve body of tubulose, be provided with valve seat in valve body, form step-like axially extending bore, be provided with silencing means in valve body in described valve seat, silencing means is in the port of export of valve body;
Described silencing means comprises two screen packs, and two screen packs are separately fixed in filtration ring net, and filtration ring net is fixed on the madial wall of valve body, and molecular sieve is filled in the inside of the valve body between two screen packs.
Be provided with filter in described valve body, filter is at the front portion of silencing means or rear portion;
Described filter comprises at least one reticulum, and described reticulum is annular round, reticulum has annular slot, and the base sleeve of filter net device is in annular slot and between the two side being clamped in annular slot, reticulum is fixed on the inwall of valve body;
Described axially extending bore comprises diameter through hole section and minor diameter through hole section, the through hole that one end of diameter through hole section has with the rear end of valve seat is connected, the other end is connected with minor diameter through hole section, movable valve plug sleeve is in diameter through hole section, movable valve plug forms the opening axially arranged, the sidewall that diameter through hole section is mutually close with minor diameter through hole section has lateral through aperture.
Described filter net device is made up of single or multiple lift filter screen, and the bottom sleeve of filter screen is in annular slot and between the two side being clamped in annular slot.
Described valve seat is fixed in valve body, and the diameter of opening is less than the diameter of minor diameter through hole section; Described through-hole diameter is less than the diameter of movable valve plug.
One end sidewall that described diameter through hole section is connected with minor diameter through hole section is round table-like side wall sections, and the larger diameter end of round table-like side wall sections is connected with diameter through hole section, and the smaller diameter end of round table-like side wall sections is connected with minor diameter through hole section.
Described axially extending bore comprises diameter through hole section and minor diameter through hole section, and one end of diameter through hole section is connected with filter, the other end communicates with minor diameter through hole section, and minor diameter through hole section communicates with silencing means.
Described filter net device is that individual layer filter screen or multistorey strainer mesh sintering form.
Two valve seats are provided with in described valve body, two silencing means are provided with in valve body, two silencing means are in the port of export and the entrance point of valve body respectively, and the minor diameter through hole section of the axially extending bore of two valve seats is facing to silencing means, and the molecular sieve inside of silencing means has micro through-hole.
Outstanding effect of the present utility model is:
Compared with prior art, valve inner is filled with molecular sieve, and there is micro through-hole molecular sieve inside, and also has through hole between sieve particle and particle; After refrigeration working medium is by throttling, fluid is broken up enters these through holes, part energy is done work when impacting on sieve particle and is consumed, another part is when fluid is by flow process lengthening during these through holes, be consumed with part energy, flow velocity is lowered, and molecular sieve inside has miniature small through hole can absorb a part of noise, and then the noise produced reduces, and plays Noise Reduction; It without the need to independently installing muffler on pipeline, and installation integrated level is high, and silencing means can be made an entirety, reduces the installation time of assembly work personnel, reduces the amount of labour.
Accompanying drawing illustrates:
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of another kind of form of the present utility model;
Fig. 3 is the structural representation of filter of the present utility model;
Fig. 4 is the another kind of structural representation of filter of the present utility model;
Fig. 5 is the another kind of structural representation of filter of the present utility model;
Fig. 6 is a kind of structural representation in addition of filter of the present utility model.
Detailed description of the invention:
Below in conjunction with accompanying drawing and concrete preferred embodiment, the utility model is elaborated, can be easier to be readily appreciated by one skilled in the art to make advantage of the present utility model and feature, these embodiments are only illustrative objects, are not intended to limit scope of the present utility model.
Embodiment 1, is shown in as shown in Fig. 1, Fig. 3, Fig. 4 and Fig. 5, a kind of choke valve with noise-reducing structure, comprise the valve body 1 of tubulose, in valve body 1, be provided with valve seat 2, in described valve seat 2, form step-like axially extending bore 3, be provided with silencing means 4 in valve body 1, silencing means 4 is in the port of export of valve body 1;
Described silencing means 4 comprises two screen packs, 41, two screen packs 41 and is separately fixed in filtration ring net 42, and filtration ring net 42 is fixed on the madial wall of valve body 1, and molecular sieve 43 is filled in the inside of the valve body 1 between two screen packs 41.
Be provided with filter 5 in described valve body 1, filter 5 is at the front portion of silencing means 4 or rear portion;
Described filter 5 comprises at least one reticulum 51, described reticulum 51 is annular round, reticulum 51 has annular slot 52, the base sleeve of filter net device 53 is in annular slot 52 and between the two side being clamped in annular slot 52, reticulum 51 is fixed on the inwall of valve body 1;
Described axially extending bore 3 comprises diameter through hole section 31 and minor diameter through hole section 32, the through hole 22 that one end and the rear end of valve seat 2 of diameter through hole section 31 have is connected, the other end is connected with minor diameter through hole section 32, movable valve plug 6 sleeve is in diameter through hole section 31, movable valve plug 6 forms the opening 61 axially arranged, the sidewall that diameter through hole section 31 is mutually close with minor diameter through hole section 32 has lateral through aperture 34.
Described filter net device 53 is made up of single or multiple lift filter screen 531, and the bottom sleeve of filter screen 531 is in annular slot 52 and between the two side being clamped in annular slot 52.
Described valve seat 2 is fixed in valve body 1, and the diameter of opening 61 is less than the diameter of minor diameter through hole section 32; Described through hole 22 diameter is less than the diameter of movable valve plug 6.
One end sidewall that described diameter through hole section 31 is connected with minor diameter through hole section 32 is round table-like side wall sections 33, the larger diameter end of round table-like side wall sections 33 is connected with diameter through hole section 31, and the smaller diameter end of round table-like side wall sections 33 is connected with minor diameter through hole section 32.
Described axially extending bore 3 comprises diameter through hole section 31 and minor diameter through hole section 32, and one end of diameter through hole section 31 is connected with filter 5, the other end communicates with minor diameter through hole section 32, and minor diameter through hole section 31 communicates with silencing means 4.
Described filter net device 53 forms for individual layer filter screen or multistorey strainer mesh sinter.
As shown in Figure 4 and Figure 5, described filter net device 53 forms for individual layer filter screen or multistorey strainer mesh sinter.
Adopt valve inner to be filled with molecular sieve 43, there is micro through-hole molecular sieve 43 inside, and also has through hole between the particle of molecular sieve 43 and particle; After refrigeration working medium is by throttling, fluid is broken up enters these through holes, part energy is done work when impacting on molecular sieve 43 and is consumed, another part is when fluid is by flow process lengthening during these through holes, be consumed with part energy, flow velocity is lowered, and molecular sieve inside has miniature small through hole can absorb a part of noise, and then the noise produced reduces, and plays Noise Reduction; And be provided with in its valve seat 2 when movable valve plug 4 can make this choke valve run and play good throttling action, it is inner that its movable valve plug 4 is arranged on valve seat 2, and it makes parts degree of integration high, and volume is little, is easy for installation and removal.
Embodiment 2, see shown in Fig. 2 to Fig. 5, described axially extending bore 3 comprises diameter through hole section 31 and minor diameter through hole section 32, one end of diameter through hole section 31 is connected with filtration silencing means 5, the other end communicates with minor diameter through hole section 32, minor diameter through hole section 31 communicates with silencing means 4, all the other are with embodiment 1, and this embodiment 2 is fixation type throttle valve.
Embodiment 3, as shown in Figure 6, two valve seats 2 are provided with in described valve body 1, two silencing means 4 are provided with in valve body 1, two silencing means 4 are in the port of export and the entrance point of valve body 1 respectively, the minor diameter through hole section 32 of the axially extending bore 3 of two valve seats 2 is facing to silencing means 4, and molecular sieve 43 inside of silencing means 4 has micro through-hole.It is two muffling type choke valves.
Above embodiment is only for illustration of the utility model; and be not limitation of the utility model; the those of ordinary skill of relevant technical field; when not departing from spirit and scope of the present utility model; can also make a variety of changes and modification; therefore all equivalent technical schemes also belong to category of the present utility model, and scope of patent protection of the present utility model should be defined by the claims.
Claims (9)
1. one kind has the choke valve of noise-reducing structure, comprise the valve body (1) of tubulose, valve seat (2) is provided with in valve body (1), it is characterized in that: in described valve seat (2), form step-like axially extending bore (3), be provided with silencing means (4) in valve body (1), silencing means (4) is in the port of export of valve body (1);
Described silencing means (4) comprises two screen packs (41), two screen packs (41) are separately fixed in filtration ring net (42), filtration ring net (42) is fixed on the madial wall of valve body (1), and molecular sieve (43) is filled in the inside of the valve body (1) between two screen packs (41).
2. a kind of choke valve with noise-reducing structure according to claim 1, it is characterized in that: be provided with filter (5) in described valve body (1), filter (5) is at the front portion of silencing means (4) or rear portion;
Described filter (5) comprises at least one reticulum (51), described reticulum (51) is annular round, reticulum (51) has annular slot (52), the base sleeve of filter net device (53) is in annular slot (52) and between the two side being clamped in annular slot (52), reticulum (51) is fixed on the inwall of valve body (1).
3. a kind of choke valve with noise-reducing structure according to claim 2, it is characterized in that: described axially extending bore (3) comprises diameter through hole section (31) and minor diameter through hole section (32), the through hole (22) that one end and the rear end of valve seat (2) of diameter through hole section (31) have is connected, the other end is connected with minor diameter through hole section (32), movable valve plug (6) sleeve is in diameter through hole section (31), movable valve plug (6) forms the opening (61) axially arranged, the sidewall that diameter through hole section (31) is mutually close with minor diameter through hole section (32) has lateral through aperture (34).
4. a kind of choke valve with noise-reducing structure according to claim 1, it is characterized in that: described filter net device (53) is made up of single or multiple lift filter screen (531), the bottom sleeve of filter screen (531) is in annular slot (52) and between the two side being clamped in annular slot (52).
5. a kind of choke valve with noise-reducing structure according to claim 3, it is characterized in that: described valve seat (2) is fixed in valve body (1), the diameter of opening (61) is less than the diameter of minor diameter through hole section (32); Described through hole (22) diameter is less than the diameter of movable valve plug (6).
6. a kind of choke valve with noise-reducing structure according to claim 3, it is characterized in that: one end sidewall that described diameter through hole section (31) is connected with minor diameter through hole section (32) is round table-like side wall sections (33), the larger diameter end of round table-like side wall sections (33) is connected with diameter through hole section (31), and the smaller diameter end of round table-like side wall sections (33) is connected with minor diameter through hole section (32).
7. a kind of choke valve with noise-reducing structure according to claim 1, it is characterized in that: described axially extending bore (3) comprises diameter through hole section (31) and minor diameter through hole section (32), one end of diameter through hole section (31) is connected with filter (5), the other end communicates with minor diameter through hole section (32), and minor diameter through hole section (31) communicates with silencing means (4).
8. a kind of choke valve with noise-reducing structure according to claim 1, is characterized in that: described filter net device (53) forms for individual layer filter screen or multistorey strainer mesh sinter.
9. a kind of choke valve with noise-reducing structure according to claim 3, it is characterized in that: in described valve body (1), be provided with two valve seats (2), two silencing means (4) are provided with in valve body (1), two silencing means (4) are in the port of export and the entrance point of valve body (1) respectively, the minor diameter through hole section (32) of the axially extending bore (3) of two valve seats (2) is facing to silencing means (4), and molecular sieve (43) inside of silencing means (4) has micro through-hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520108443.2U CN204574647U (en) | 2015-02-14 | 2015-02-14 | A kind of choke valve with noise-reducing structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520108443.2U CN204574647U (en) | 2015-02-14 | 2015-02-14 | A kind of choke valve with noise-reducing structure |
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| CN204574647U true CN204574647U (en) | 2015-08-19 |
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| CN201520108443.2U Active CN204574647U (en) | 2015-02-14 | 2015-02-14 | A kind of choke valve with noise-reducing structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110939781A (en) * | 2019-12-10 | 2020-03-31 | 新昌县丰亿电器有限公司 | Bidirectional throttle valve |
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2015
- 2015-02-14 CN CN201520108443.2U patent/CN204574647U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110939781A (en) * | 2019-12-10 | 2020-03-31 | 新昌县丰亿电器有限公司 | Bidirectional throttle valve |
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Address after: 312500 Xinchang Avenue East Road, Xinchang County, Zhejiang 889 Patentee after: Zhejiang star Polytron Technologies Inc Address before: 312500 No. 889 Xinchang Road, Xinchang Industrial Park, Shaoxing, Zhejiang Patentee before: Zhejiang Tongxing Refrigecation Co.Ltd. |