CN203023505U - Vent valve pressure-possessed air intake and exhaust quantity magnifying structure - Google Patents
Vent valve pressure-possessed air intake and exhaust quantity magnifying structure Download PDFInfo
- Publication number
- CN203023505U CN203023505U CN 201220709126 CN201220709126U CN203023505U CN 203023505 U CN203023505 U CN 203023505U CN 201220709126 CN201220709126 CN 201220709126 CN 201220709126 U CN201220709126 U CN 201220709126U CN 203023505 U CN203023505 U CN 203023505U
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- pressure
- valve body
- valve
- outlet valve
- air intake
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Abstract
The utility model discloses a vent valve pressure-possessed air intake and exhaust quantity magnifying structure which comprises a valve shaft and a valve body with an opening on the top, a guide holder is arranged above the valve body, a self-sealing structure is arranged at the position of the opening of the top of the valve body, a membrane structure is fixed in the valve body, the head end of the valve shaft is connected with the guide holder in a sliding mode, the self-sealing structure and the membrane structure are coaxially fixed on the valve shaft, a pressure balance cavity is formed between the membrane structure and the lower portion of the valve body, a pressure cavity is formed between the membrane structure and the upper portion of the valve body, a vent valve big air intake and exhaust port is formed in the pressure cavity, a small air intake and exhaust port and a pressure relief micro-pore are formed in the pressure balance cavity, the sectional area of the vent valve small air intake and exhaust port is larger than the sectional area of the pressure relief micro-pore, and the action area of the membrane structure is larger than the sealing area of the seal-sealing structure. According to the vent valve pressure-possessed air intake and exhaust quantity magnifying structure, by means of differential pressure transformation, effective magnifying of the air intake and exhaust quantity is achieved, guiding deviation and scaling jam are avoided, reliability of pressure transformation is high, manufacturability is good, the size of the vent valve can be effectively reduced, and production cost is reduced.
Description
Technical field
The utility model relates to the pipeline corollary equipment, refers to that particularly a kind of outlet valve compresses into the air displacement structure for amplifying.
Background technique
Outlet valve is applied to the pipeline air exhaust waters such as independent heating system, central heating system, heating boiler, when gas enters the top that the outlet valve inner chamber is gathered in outlet valve, along with increasing of gas in valve, pressure rise, when gas pressure during greater than system pressure, gas can make water surface decline in the chamber, the exhaust open of outlet valve; After gas drained, water level rose, exhaust close; Equally, produce negative pressure in system, in the outlet valve inner chamber, the water surface descends, exhaust open, due to this moment external atmosphere pressure force rate system pressure large, so atmosphere can enter system by relief opening, prevent the harm of negative pressure.
At present, outlet valve and micro-exhaust valve are due to design limitation, and the size of relief opening is less, often have and compress into exhaust problem, the intake and exhaust amount is little; The defectives such as the intake and exhaust ability of outlet valve is affected by line pressure, and the outlet valve volume is larger.
Summary of the invention
The purpose of this utility model is to provide a kind of outlet valve to compress into the air displacement structure for amplifying for the problems referred to above, and this structure can effectively be amplified the air displacement of compressing into of outlet valve, and the venting capacity of this structure is not subjected to the constraint of line pressure and outlet valve self function.
for achieving the above object, the scheme that the utility model adopts is: a kind of outlet valve is compressed into the air displacement structure for amplifying, comprise valve shaft and open-topped valve body, described valve body top is provided with guide holder, described valve body top open part is provided with self sealing structure, be fixed with membrane configuration in described valve body, described valve shaft head end and described guide holder are slidably connected, and described self sealing structure and described membrane configuration are coaxial to be fixed on described valve shaft, mineralization pressure counter balance pocket between described membrane configuration and valve body lower portion, mineralization pressure chamber between described membrane configuration and valve body top, have the large porting of outlet valve on described pressure chamber, have the little porting of outlet valve and pressure release micropore on described pressure balance chamber, the cross-sectional area of the little porting of described outlet valve is greater than the cross-sectional area of described pressure release micropore, the active area of described membrane configuration is greater than the sealing area of described self sealing structure.
The large porting access duct chamber of outlet valve on the utility model pressure chamber or outlet valve inner chamber, the little porting access of outlet valve on pressure balance chamber can have the outlet valve of pressure gas or the relief opening of micro-exhaust valve, utilize the pressure balance chamber that communicates with the outlet valve relief opening to regulate the pressure reduction of membrane configuration both sides, make the pressure chamber that communicates with duct chamber or outlet valve inner chamber become final intake and exhaust channel, realized amplification process and a large amount of breathing process of lower negative pressure of air displacement; The venting capacity of this structure is not retrained by line pressure; Membrane configuration is the free style driving mechanism, has avoided the problems such as guiding deviation and fouling jam, and unrestricted motion when barrier film is stressed reduce the uncertain factor in the conversion of pressure chamber and pressure balance cavity pressure, so this structural reliability is high; Because membrane configuration need not guiding, reduced the friction between component, also make the total height greatly reduce, installation dimension is very compact, and because there not being any precision-fit, producting process difficulty also reduces greatly; This structure can effectively reduce the own vol of outlet valve and micro-exhaust valve, thereby reduces the mounting point and reduce production costs.
Further, described membrane configuration comprises the barrier film that is fixed on the valve body transverse section, and both sides, described barrier film up and down are respectively equipped with the diaphragm pressing plate, and described valve shaft passes from the middle part of the diaphragm pressing plate of described barrier film and both sides thereof.Membrane configuration teetertotters under the driving of both sides pressure reduction, moves up and down with valve shaft thereby drive self sealing structure, realizes that the unlatching of structure for amplifying opening is with closed; Upper and lower pressing plate clamps barrier film therebetween, and then realizes properly fixing between barrier film and valve shaft.
Further, described valve body comprises upper valve body and lower valve body, and described barrier film periphery inlay card is fixed between upper valve body and lower valve body.Valve body is made of up and down two-part, is conducive to fixing, install and changing of barrier film.
Further, described self sealing structure comprises flap, and the upper end of described flap is provided with spring, and the upper end of described spring is fixed on described guide holder, and the bottom of described spring is resisted against on flap, and described flap bottom is provided with sealing pair.Self sealing structure can be realized selfsealings under high pressure or low pressure condition, its seal pressure is very little, makes the low pressure seal spring strength very little, thereby avoids spring force to affect the conversion of membrane configuration pressure at both sides, makes this structure realize smoothly the intake and exhaust enlarging function.
Preferably, the top of described valve body is connected with adjusting nut, and described guide holder is fixed on the screw middle part of described adjusting nut.Adjusting nut is used for the intensity of Regulation spring, i.e. the compression degree of Regulation spring; Guide holder is used for the guiding of valve shaft, and wherein the gap between guide holder and nut is the large porting of this structure, for the air turnover.
Further preferably, the side of described pressure chamber has the large porting of outlet valve on week.The large porting of outlet valve is used for pressure chamber is communicated with duct chamber or outlet valve inner chamber.
Still more preferably, the bottom of described pressure balance chamber has little porting, and the side of described pressure balance chamber has the pressure release micropore on week.The little porting of outlet valve is used for pressure balance chamber is communicated with the pressure gas port that has of outlet valve; The pressure release micropore is used for realizing the pressure reduction conversion.
Description of drawings
Fig. 1 is that outlet valve has the sectional structure schematic diagram of compressing into the air displacement structure for amplifying.
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments, is convenient to more clearly understand the utility model, but they do not consist of restriction to the utility model.
as shown in Figure 1, the utility model outlet valve is compressed into the air displacement structure for amplifying, comprise valve shaft 1 and open-topped valve body 2, described valve body 2 comprises upper valve body 201 and lower valve 202, described upper valve body 201 tops are provided with guide holder 3, guide holder 3 is provided with the guide through hole 301 of sliding for valve shaft 1, space between the screw of guide holder 3 and adjusting nut 11 is the large porting 12 of this structure, this large porting 12 and environmental communication, for the air turnover, described upper valve body 201 top open parts are provided with self sealing structure 4, described self sealing structure 4 comprises flap 401, the upper end of described flap 401 is provided with spring 402, the upper end of described spring 402 is fixed on described guide holder 3, the bottom of described spring 402 is resisted against on flap 401, described flap 401 bottoms are provided with sealing pair 403, the top of described upper valve body 201 is connected with adjusting nut 11, described guide holder 3 is fixed on the screw middle part of described adjusting nut 11.Described upper valve body 201 and 202 of lower valve bodies are provided with membrane configuration 5, described membrane configuration 5 comprises the barrier film 501 that is fixed on valve body 2 transverse section, the peripheral inlay card of described barrier film 501 is fixed between upper valve body 201 and lower valve body 202, described barrier film is respectively equipped with diaphragm pressing plate 502 in both sides Shang Xia 501, and described valve shaft 1 passes from the middle part of the diaphragm pressing plate 502 of described barrier film 501 and both sides thereof.described valve shaft 1 head end stretches in the guide through hole 301 of guide holder 3, thereby valve shaft 1 is slidably connected with described guide holder 3, and described self sealing structure 4 and described membrane configuration 5 are coaxial to be fixed on described valve shaft 1, described membrane configuration 5 and 202 mineralization pressure counter balance pocket 6 of lower valve body, 201 of described membrane configuration 5 and upper valve bodies mineralization pressure chamber 7, the side of described pressure chamber 7 has the large porting 8 of outlet valve on week, the bottom of described pressure balance chamber 6 has little porting 9, the side of described pressure balance chamber 6 has pressure release micropore 10 on week, the cross-sectional area of the little porting 9 of described outlet valve is greater than the cross-sectional area of described pressure release micropore 10, the active area of described membrane configuration 5 is greater than the sealing area of described self sealing structure 4.
The utility model principle is described as follows: this structure with can have the outlet valve of pressure gas to use simultaneously, in this structure, the valve body openings at flap 401 places much larger than the relief opening size of existing outlet valve, can effectively be amplified outlet valve and compress into air displacement.
When the pipeline positive pressure, large porting 8 access duct chamber or the outlet valve inner chambers of outlet valve, what 9 accesses of the little porting of outlet valve can have the outlet valve of pressure gas or a micro-exhaust valve has a pressure gas port, when the little porting 9 of outlet valve works, have air the little porting of outlet valve 9 open, without air the little porting 9 of outlet valve close.when outlet valve carries out normal exhaust with pressure, there is the air of pressure to enter the pressure balance chamber 6 of this structure by the little porting 9 of outlet valve, due to pressure release micropore 10 runners much smaller than the little porting 9 of outlet valve, therefore the pressure P 2 in pressure balance chamber 6 rises to pipeline pressure or valve cavity pressure P 1, be P1=P2, at this moment, flap 401 places are stressed is opening direction, therefore this structure is opened, the large porting 12 of this structure is opened, thereby has realized the amplification process (air direct as shown by the arrows in Figure 1) of air displacement, when outlet valve carries out normal with pressure closing, the little porting 9 of outlet valve on pressure balance chamber 6 is closed, pressure balance chamber 6 is because the existence of pressure release micropore 10, its chamber pressure reduces to rapidly 0, and pressure chamber 7 or holding tube line or outlet valve chamber pressure, and the active area of membrane configuration 5 (area of membrane configuration and pressure intracavity gas contact) is much larger than the sealing area of flap 401 (flap bottom can with the area of pressure intracavity gas contact), therefore stressed its middle part of membrane configuration 5 offsets downward return, drive descending this structure of closing of flap 401, the sealing pair 403 at flap 401 places is realized reliable selfsealings under Water Pressure.
During without pressure, this structure promotes flap 401 sealings under 402 effects of low pressure seal spring when pipeline.Therefore, this structure has pressure gas ability to have remarkable result for improving outlet valve, pressure air is carried out a large amount of dischargings at a high speed, during work venting capacity and when not working sealing effect be not subjected to the impact of outlet valve itself, be not subjected to the impact of system pressure environment yet, can adapt to having of various characteristics has outlet valve and the micro-exhaust valve of pressure gas ability, and thoroughly having solved outlet valve has pressure gas difficulty and micro-exhaust valve that the problems such as pressure is narrow-minded are arranged.
When negative pressure appears in pipeline, ambient pressure is greater than pipeline inner chamber or outlet valve chamber pressure, the little porting 9 of outlet valve this moment is not opened because the pipeline water level descends, but be external pressure in pressure balance chamber 6 at this moment, this pressure is greater than 7 negative pressure in pressure chamber, and therefore the cross-sectional area of the membrane configuration 5 in pressure chamber 7 is evident as membrane configuration 5 upwards skew of stressed its middle part much larger than the sealing area of flap 401, flap 401 is opened, and this structure begins negative inspiratory pressure.Found out by above principle, this structure has made up partly the especially defective of micro-exhaust valve when responding negative pressure fast of pressure exhaust valve.
In addition, this structure adopts the diaphragm type structure to drive, be free style mechanism, there are not membrane configuration 5 guiding problems, avoided the fouling jam and the problem such as excessive that rubs, when membrane configuration 5 is stressed yet, its periphery is fixed between the valve body of up and down, the middle part unrestricted motion reduced the uncertain factor in pressure chamber 7 and pressure balance chamber 6 internal pressures conversions, so this structural reliability is high; Because membrane configuration 5 need not guiding, make the height of total less, size is more compact; Because there not being any precision-fit, producting process difficulty reduces, and easily processing is low from forming the product cost.
Claims (7)
1. an outlet valve is compressed into the air displacement structure for amplifying, comprise valve shaft (1) and open-topped valve body (2), it is characterized in that: be provided with guide holder (3) above described valve body (2), described valve body (2) top open part is provided with self sealing structure (4), be fixed with membrane configuration (5) in described valve body (2), described valve shaft (1) head end and described guide holder (3) are slidably connected, and described self sealing structure (4) and described membrane configuration (5) are coaxial to be fixed on described valve shaft (1), mineralization pressure counter balance pocket (6) between described membrane configuration (5) and valve body (2) bottom, mineralization pressure chamber (7) between described membrane configuration (5) and valve body (2) top, have the large porting of outlet valve (8) on described pressure chamber (7), have the little porting of outlet valve (9) and pressure release micropore (10) on described pressure balance chamber (6), the cross-sectional area of the little porting of described outlet valve (9) is greater than the cross-sectional area of described pressure release micropore (10), the active area of described membrane configuration (5) is greater than the sealing area of described self sealing structure (4).
2. outlet valve according to claim 1 is compressed into the air displacement structure for amplifying, it is characterized in that: described membrane configuration (5) comprises the barrier film (501) that is fixed on valve body (2) transverse section, both sides, described barrier film (501) up and down are respectively equipped with diaphragm pressing plate (502), and described valve shaft (1) passes from the middle part of the diaphragm pressing plate (502) of described barrier film (501) and both sides thereof.
3. outlet valve according to claim 2 is compressed into the air displacement structure for amplifying, it is characterized in that: described valve body (2) comprises upper valve body (201) and lower valve body (202), and the peripheral inlay card of described barrier film (501) is fixed between upper valve body (201) and lower valve body (202).
4. outlet valve according to claim 1 is compressed into the air displacement structure for amplifying, it is characterized in that: described self sealing structure (4) comprises flap (401), the upper end of described flap (4) is provided with spring (402), the upper end of described spring (402) is fixed on described guide holder (3), the bottom of described spring (402) is resisted against on flap (401), and described flap (401) bottom is provided with sealing pair (403).
5. according to claim 1 or 3 described outlet valves are compressed into the air displacement structure for amplifying, it is characterized in that: the top of described valve body (2) is connected with adjusting nut (11), and described guide holder (3) is fixed on the screw middle part of described adjusting nut (11).
6. outlet valve according to claim 1 is compressed into the air displacement structure for amplifying, it is characterized in that: the side of described pressure chamber (7) has the large porting of outlet valve (8) on week.
7. outlet valve according to claim 1 is compressed into the air displacement structure for amplifying, it is characterized in that: the bottom of described pressure balance chamber (6) has little porting (9), and the side of described pressure balance chamber (6) has pressure release micropore (10) on week.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220709126 CN203023505U (en) | 2012-12-20 | 2012-12-20 | Vent valve pressure-possessed air intake and exhaust quantity magnifying structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220709126 CN203023505U (en) | 2012-12-20 | 2012-12-20 | Vent valve pressure-possessed air intake and exhaust quantity magnifying structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203023505U true CN203023505U (en) | 2013-06-26 |
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ID=48647492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220709126 Withdrawn - After Issue CN203023505U (en) | 2012-12-20 | 2012-12-20 | Vent valve pressure-possessed air intake and exhaust quantity magnifying structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203023505U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103032578A (en) * | 2012-12-20 | 2013-04-10 | 武汉大禹阀门股份有限公司 | Pressure air intake and exhaust volume amplifying structure of exhaust valve |
| CN112197011A (en) * | 2020-09-30 | 2021-01-08 | 福建骏格科技有限公司 | Pressure control valve for closed drainage device capable of controlling negative pressure input |
-
2012
- 2012-12-20 CN CN 201220709126 patent/CN203023505U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103032578A (en) * | 2012-12-20 | 2013-04-10 | 武汉大禹阀门股份有限公司 | Pressure air intake and exhaust volume amplifying structure of exhaust valve |
| CN103032578B (en) * | 2012-12-20 | 2014-10-22 | 武汉大禹阀门股份有限公司 | Pressure air intake and exhaust volume amplifying structure of exhaust valve |
| CN112197011A (en) * | 2020-09-30 | 2021-01-08 | 福建骏格科技有限公司 | Pressure control valve for closed drainage device capable of controlling negative pressure input |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130626 Effective date of abandoning: 20141022 |
|
| RGAV | Abandon patent right to avoid regrant |