CN204386842U - Hydraulic substation low frequency one-way valve - Google Patents
Hydraulic substation low frequency one-way valve Download PDFInfo
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- CN204386842U CN204386842U CN201420858108.XU CN201420858108U CN204386842U CN 204386842 U CN204386842 U CN 204386842U CN 201420858108 U CN201420858108 U CN 201420858108U CN 204386842 U CN204386842 U CN 204386842U
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Abstract
A kind of hydraulic substation low frequency one-way valve, it comprises upper valve body and lower valve body, is fixedly connected with therebetween and forms the valve chamber sealed; This upper valve body is provided with the air outlet hole run through; This lower valve body is provided with the inlet hole run through; Be provided with discoid valve block bottom this valve chamber, this valve block outer rim is evenly provided with breach; This valve block is close to this lower valve body end face and covers this inlet hole top whole, is provided with holddown spring between this valve block end face and this valve chamber end face, makes this valve block keep being pressed in bottom this valve chamber and sealing this inlet hole.The utility model hydraulic substation low frequency one-way valve, it has lightweight, that latus rectum is large, noise is little, easy to maintenance feature, and because easily damaged parts is spring, therefore maintenance cost is low.
Description
Technical field
The utility model relates to air intake valve technical field, particularly a kind of hydraulic substation low frequency one-way valve.
Background technique
Generally select common one-way valve for the air inlet and exhaust valve of rock gas hydraulic pressure piston compressor at present, as shown in Figure 1, valve body 1 ' is provided with suction port 2 ' and air outlet 3 ', and suction port 2 ' is closed by the spool 5 ' of band spring 4 '.And the mechanical commprssor that this common air inlet and exhaust valve mostly is rotating speed more than 720 revs/min designs, i.e. the frequency of air inlet and exhaust valve opening and closing is at 720 beats/min, and its latus rectum is little, and exhaust noise is large.And for hydraulic piston compressor, the opening and closing frequency of its intake and exhaust is 10 ~ 12 beats/min, one-way valve is under low frequency condition, and because gas will continue to walk around spool within a certain period of time, when air-flow is unstable, spool concussion occurs and collides with valve body.Because spool quality is comparatively large, when colliding with valve seat, larger noise can be produced.In addition, due to the restriction of size, the drift diameter area of import and export is all less, and in a low voltage state, flow can significantly decline.For air valve, the valve block of sheet, owing to using marginal gap to be air ventilation passage, under low frequency state, flowing can continue for some time, and when a side clearance is less, flow velocity larger side pressure changes locally, can cause biased or tilt.
At present, commercially also there is not being specifically designed to the corresponding air inlet and exhaust valve of the hydraulic piston compressor under low frequency condition.
Model utility content
The purpose of this utility model is to provide a kind of hydraulic substation low frequency one-way valve, and it has lightweight, that latus rectum is large, noise is little, easy to maintenance feature, and maintenance cost is low.
For achieving the above object, the utility model takes following technological scheme:
A kind of hydraulic substation low frequency one-way valve, it comprises upper valve body and lower valve body, is fixedly connected with therebetween and forms the valve chamber sealed; This upper valve body is provided with the air outlet hole run through; This lower valve body is provided with the inlet hole run through; Be provided with discoid valve block bottom this valve chamber, this valve block outer rim is evenly provided with breach; This valve block is close to this lower valve body end face and covers this inlet hole top whole, is provided with holddown spring between this valve block end face and this valve chamber end face, makes this valve block keep being pressed in bottom this valve chamber and sealing this inlet hole.
Further, the corresponding described valve block place of described upper valve body inwall has a vertical section, and the internal diameter of this vertical section is identical with described valve block external diameter, and this vertical section top internal diameter is less than this vertical section.
Further, be fixedly connected with by screw rod between described upper valve body and lower valve body.
Further, described notch geometry is semicircle.
The beneficial effects of the utility model are: the utility model hydraulic substation low frequency one-way valve, and it has lightweight, that latus rectum is large, noise is little, easy to maintenance feature, and because easily damaged parts is spring, therefore maintenance cost is low.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing one-way valve.
Fig. 2 is structural representation of the present utility model.
Fig. 3 is the sectional view in A-A direction in Fig. 2.
Embodiment
Below in conjunction with accompanying drawing, by describing in detail embodiment of the present utility model, the technical solution of the utility model will be made apparent.
As shown in Figure 2 and Figure 3, the utility model provides a kind of hydraulic substation low frequency one-way valve, and as the air inlet and exhaust valve of the hydraulic piston compressor of compressed natural gas, it comprises upper valve body 1 and lower valve body 2, is fixedly connected with therebetween and forms the valve chamber 3 sealed.This upper valve body 1 is provided with the air outlet hole 4 run through.This lower valve body 2 is provided with the inlet hole 5 run through, and the strip vent of the large flux of employing, has larger circulation area.Lower valve body 2 adopts stainless steel Plate Steel to make, and inside surface roughness adopts plain grinding processing, and surface quality is easily guaranteed.For the working state of the low frequency of hydraulic piston compressor, and require to have larger latus rectum, be provided with discoid valve block 6 bottom this valve chamber 3, this valve block 6 outer rim is evenly provided with breach 7, can be semicircle or other shapes.When air-flow flows through these breach, produce uniform Driving force, avoid the valve block of disc structure when air flow biasing due to the quickening compared with small―gap suture sidewind, cause local compression to fall, valve block run-off the straight, produce lateral force.
Design for valve block 6, from Material selec-tion, select metal sheets or composite, movement inertia during reduction opening and closing, forms good laminating with valve chamber 3, realizes effectively sealing.This valve block 6 is close to this lower valve body 2 end face and covers this inlet hole 5 top whole, is provided with holddown spring 8 between this valve block 6 end face and this valve chamber 3 end face, makes this valve block 6 keep being pressed in bottom this valve chamber 3 and sealing this inlet hole 5.Holddown spring 8 adopts Low rigidity helical spring, to guarantee the sensitivity of valve block 6 action.Preferably, this upper valve body 1 inwall is to having a vertical section 9 in valve block 6 place, and the internal diameter of this vertical section 9 is identical with this valve block 6 external diameter, and this vertical section 9 top internal diameter is less than this vertical section internal diameter.When valve block 6 can be moved up along this vertical section 9 by during air-flow jack-up, when moving to this vertical section 9 top and this upper valve body 1 inwall offset, stop mobile.Air-flow under the effect of holddown spring 8, compresses again and closes this inlet hole 5 after disappearing.
Can be fixedly connected with by screw rod 10 between upper valve body 1 of the present utility model and lower valve body 2, also can connect by other means, as welding, be threaded.When using screw rod 10 to connect, this valve block 6 offering through hole 11, wearing for this screw rod 10.
The utility model has the advantages that:
1) valve structure of the present utility model can guarantee that uniform stream flows through valve block surrounding, keeps steady state, and has larger circulation area;
2) the utility model is lightweight, latus rectum is large, and close, open flexibly, noise is little, and installation dimension is little, and easily damaged parts is only holddown spring, easy to maintenance, and maintenance cost is low.
3) valve block of the present utility model adopts board making, makes simple, is applicable to producing in enormous quantities.
The above is only preferred embodiment of the present utility model, not does any pro forma restriction to structure of the present utility model.Every above embodiment is done according to technical spirit of the present utility model any simple modification, equivalent variations and modification, all still belong in the scope of the technical solution of the utility model.
Claims (4)
1. a hydraulic substation low frequency one-way valve, is characterized in that, it comprises upper valve body and lower valve body, is fixedly connected with therebetween and forms the valve chamber sealed; This upper valve body is provided with the air outlet hole run through; This lower valve body is provided with the inlet hole run through; Be provided with discoid valve block bottom this valve chamber, this valve block outer rim is evenly provided with breach; This valve block is close to this lower valve body end face and covers this inlet hole top whole, is provided with holddown spring between this valve block end face and this valve chamber end face, makes this valve block keep being pressed in bottom this valve chamber and sealing this inlet hole.
2. hydraulic substation low frequency one-way valve according to claim 1, is characterized in that: the corresponding described valve block place of described upper valve body inwall has a vertical section, and the internal diameter of this vertical section is identical with described valve block external diameter, and this vertical section top internal diameter is less than this vertical section.
3. hydraulic substation low frequency one-way valve according to claim 1 and 2, be is characterized in that: be fixedly connected with by screw rod between described upper valve body and lower valve body.
4. hydraulic substation low frequency one-way valve according to claim 3, is characterized in that: described notch geometry is for semicircle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420858108.XU CN204386842U (en) | 2014-12-30 | 2014-12-30 | Hydraulic substation low frequency one-way valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420858108.XU CN204386842U (en) | 2014-12-30 | 2014-12-30 | Hydraulic substation low frequency one-way valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204386842U true CN204386842U (en) | 2015-06-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420858108.XU Active CN204386842U (en) | 2014-12-30 | 2014-12-30 | Hydraulic substation low frequency one-way valve |
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| CN (1) | CN204386842U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108035879A (en) * | 2017-12-29 | 2018-05-15 | 广东兴泽尔新能源科技有限公司 | The increasing enthalpy structure and screw compressor of compressor |
| CN109185507A (en) * | 2018-10-11 | 2019-01-11 | 浙江欧盾国际救援装备有限公司 | Check valve and oil pumping device with check valve |
| CN109838595A (en) * | 2017-11-25 | 2019-06-04 | 杭州神林电子有限公司 | A kind of water feed apparatus with negative pressure elimination, anti-return and safety relief function |
-
2014
- 2014-12-30 CN CN201420858108.XU patent/CN204386842U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109838595A (en) * | 2017-11-25 | 2019-06-04 | 杭州神林电子有限公司 | A kind of water feed apparatus with negative pressure elimination, anti-return and safety relief function |
| CN108035879A (en) * | 2017-12-29 | 2018-05-15 | 广东兴泽尔新能源科技有限公司 | The increasing enthalpy structure and screw compressor of compressor |
| CN108035879B (en) * | 2017-12-29 | 2023-08-22 | 广东兴泽尔新能源科技有限公司 | Enthalpy increasing structure of compressor and scroll compressor |
| CN109185507A (en) * | 2018-10-11 | 2019-01-11 | 浙江欧盾国际救援装备有限公司 | Check valve and oil pumping device with check valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: BEIJING PROVA ENERGY CO., LTD. Free format text: FORMER NAME: BEIJING PROVA ENERGY TECHNOLOGY DEVELOPMENT CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 101102, Beijing, Zhongguancun Tongzhou District science and Technology Park, Tongzhou Park Jinqiao technology industry base, King Sheng, four South Street, No. 15, 37B Patentee after: Beijing Prova Energy Holding Co., Ltd. Address before: 101102, Beijing, Zhongguancun Tongzhou District science and Technology Park, Tongzhou Park Jinqiao technology industry base, King Sheng, four South Street, No. 15, 37B Patentee before: BEIJING PROVA ENERGY DEVELOPMENT CO., LTD. |