CN202629290U - Diaphragm type hydraulic power drain valve - Google Patents
Diaphragm type hydraulic power drain valve Download PDFInfo
- Publication number
- CN202629290U CN202629290U CN 201220249643 CN201220249643U CN202629290U CN 202629290 U CN202629290 U CN 202629290U CN 201220249643 CN201220249643 CN 201220249643 CN 201220249643 U CN201220249643 U CN 201220249643U CN 202629290 U CN202629290 U CN 202629290U
- Authority
- CN
- China
- Prior art keywords
- valve
- diaphragm
- drain
- hydraulic power
- barrier film
- 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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- Fluid-Driven Valves (AREA)
Abstract
The utility model discloses a diaphragm type hydraulic power drain valve, which includes a valve body, wherein a tubular valve seat is arranged in a vertical cylinder of the valve body, the lower part of the valve seat is a drain cavity, an arched valve cap is arranged at the top part of the valve body, an upward projected tube head is arranged at the top part of the valve cap, a top cover is connected onto the tube head, and the top of the top cover is connected with a water absorption tube; a diaphragm is arranged between the valve seat and the valve cap, a valve clack is arranged at the center of the top of the diaphragm and is fixed on the diaphragm, and a spring is arranged between the top of the valve clack and the bottom of the top cover; and a water inlet cavity of the valve body is communicated with a valve cap cavity of the valve cap through a communicating tube. The diaphragm type hydraulic power drain valve adopts the valve clack and the diaphragm as opening and closing elements for the drain valve, a hole at the top part of the valve seat is controlled to be opened or closed through utilizing the hydraulic power to drive the diaphragm and the valve clack to perform up and down displacement, and the control on a water fluid flow passage without a power supply is realized; and the diaphragm type hydraulic power drain valve is combined with the existing hydraulic power air exhaust tee joint vacuum device to be applied to automatic pollution discharge of a sedimentation tank and automatic backwashing drain of a gravity type rapid filter.
Description
Technical field
The utility model relates to a kind of engineering of water treatment facility water discharging valve, especially a kind of diaphragm type waterpower drain valve.
Background technique
At present, deposition tank and gravity type rapid filter are the process facility that is widely used in engineering of water treatment.Manual valve rod, flap rise-fall type valve are adopted in deposition tank blowdown, rapid filter backwash draining usually, and its shortcoming is: because of opening and closing frequent valve motive sealing component seepage easy to wear; Operator's manually-operable, labor intensity is bigger; Under the raw water quality situation of change often because of operating the untimely effluent quality that influences.Be to improve the operation operating mode, the water factory that has is used for deposition tank blowdown and filter back washing draining with electric valve, but also has problems such as complex structure, cost height, need electrical source of power, maintenance load increase, applies receiving certain limitation.
Summary of the invention
The purpose of the utility model is: a kind of diaphragm type waterpower drain valve is provided, and it is simple in structure, need not electrical source of power with regard to realizing the aqueous fluid passage be closed and open, and is with low cost, to overcome the deficiency of existing technology.
The utility model is achieved in that diaphragm type waterpower drain valve; Comprise valve body, in the vertical cylinder of valve body, be provided with the valve seat of the tubular shape concentric with it, the bottom of valve seat is a drain chamber; Be provided with the valve gap of dome-shaped at the top of valve body; Be provided with tube head protruding upward at the top of valve gap, on tube head, be connected with top cover, be connected with suction sleeve at the top of top cover; Between valve seat and valve gap, be provided with barrier film, be provided with flap in the top center of barrier film, flap is fixed on the barrier film, between the bottom of the top of flap and top cover, is provided with spring; The water-inlet cavity of valve body is through being communicated with the valve cover cavity of valve gap connecting tube.
Flap passes through bolt, nut and shim on barrier film.
The vertical cylinder of valve seat, valve body, barrier film, the top view of flap, valve gap and top cover are centered close on the same vertical medial axis.
Following mathematical expression further specifies this diaphragm type waterpower drain valve working principle:
Aqueous fluid in the drain valve water-inlet cavity gets into valve cover cavity through connecting tube, and the upper and lower both side surface of barrier film this moment is born pressure F vertically downward respectively
1Pressure F vertically upward
2
F
1=A·P
j+ft……（1）
In the formula: P
j-hydrostatic pressure
A is barrier film compression area A=π D
2/ 4
Wherein D is the barrier film effective diameter
Ft-is a spring deformation elastic force
Formula (1) can be write as again
F
1=πD
2/4·P
j+ft……（2）
The barrier film downside bears upward pressure F
2
F
2=（A-a）·?P
j……（3）
In the formula: a is base top opening area a=π d
2/ 4
Wherein d is a base apical pore diameter
Formula (3) can be write as again
F
2=π（D
2-d
2）/4·P
j……（4）
Formula (2), (4) show F
1>F
2, its difference is △ F.
△F=?F
1-F
2=πd
2/4·P
j+ft
Effect lower diaphragm plate at pressure difference △ F moves down, closed valve seat top mouthful throttle down.When the vacuum system startup that is connected with suction sleeve, aqueous fluid is aspirated in the valve cover cavity, and water presents negative pressure in the chamber, the down pressure F that this moment, barrier film bore
1Change.
F
1=πD
2/4·（P
j-P
Z）+ft……（5）
P wherein
ZBe negative pressure value.
Formula (5) shows negative pressure value P
ZIncrease F
1Corresponding reducing worked as F
1<f
2The time, barrier film is to top offset, and disengaging contacts aqueous fluid passage opening water discharge with the valve seat end face.
Along with drainage procedure finishes, vacuum system quits work, and negative pressure disappears in differential water pressures and spring deformation pressure P in the valve cover cavity
jEffect down, barrier film is to bottom offset, valve closing.
Owing to adopt above-mentioned technological scheme; Compared with prior art; The utility model adopts barrier film and flap as the keying element of drain valve, utilizes the upper and lower displacement of hydro powered barrier film and flap, thus the open and close in aperture, control valve seat top; To realize the non-transformer control to the aqueous fluid passage, it and existing waterpower are bled threeway vacuum system Combination application in deposition tank automatic pollution discharge and the draining of gravity type rapid filter automatic backwash.The utility model is simple in structure, implements easily, and the installation cost that is adopted is cheap, energy saving, and using effect is desirable.
Description of drawings
Accompanying drawing 1 is the structural representation of the utility model;
Structural representation when accompanying drawing 2 is the draining of the utility model;
Arrow is represented the flow direction of aqueous fluid in the accompanying drawing.
Embodiment
The embodiment of the utility model: the structure of diaphragm type waterpower drain valve is as shown in Figure 1; Comprise valve body 1, in the vertical cylinder of valve body 1, be provided with the tubular shape valve seat 2 concentric with it, the bottom of valve seat 2 is a drain chamber 7; Be provided with the valve gap 3 of dome-shaped at the top of valve body 1; Be provided with tube head protruding upward 16 at the top of valve gap 3, on tube head 16, be connected with top cover 15, be connected with suction sleeve 13 at the top of top cover 15; Between valve seat 2 and valve gap 3, be provided with barrier film 5, be provided with flap 4 in the top center of barrier film 5, flap 4 is fixed on the barrier film 5 through bolt 9, nut 10 and backing plate 11; Between the bottom of the top of flap 4 and top cover 15, be provided with spring 8; The water-inlet cavity 6 of valve body 1 is through being communicated with the valve cover cavity 14 of valve gap 3 connecting tube 12; The vertical cylinder of valve seat 2, valve body 1, barrier film 5, the top view of flap 4, valve gap 3 and top cover 15 is centered close on the same vertical medial axis.Barrier film 5 adopts rubber material to make, and all the other component adopt metallic material manufacturings such as Ordinary Steel.
In use; Earlier suction sleeve 13 is connected to waterpower and bleeds on the suction inlet of threeway vacuum system, the process that opens and closes of drain valve is following: aqueous fluid is got into by water-inlet cavity 6 and through being full of two cavitys of barrier film 5 about connecting tube 12, because the hydrostatic pressure that makes progress of obviously bearing greater than barrier film 5 downsides to launching stress and spring 8 elastic force sums that barrier film 5 upper sides bear; Under this pressure difference effect; Flap 4 and barrier film 5 are to bottom offset, and barrier film 5 is close to shutoff valve seat 2 apertures, then valve closing; When palpus opening water discharge valve; Start the waterpower threeway vacuum system of bleeding, the water in the valve cover cavity 14 by sucking-off, forms negative pressure through suction sleeve 13 in the valve cover cavity 14; When the downward total pressure drop that barrier film 5 upper sides bear is low to moderate the upwards total pressure of bearing less than its downside; Barrier film 5 and flap 4 be to top offset, and the opening of valves draining is as shown in Figure 2.Drainage procedure finishes, and closes vacuum system and stops suction, and negative pressure disappears in the valve cover cavity, and barrier film is to bottom offset, and valve cuts out.
The working pressure of the utility model is 0.1MPa, by the emission flow requirement, can form different bore products.
Claims (3)
1. diaphragm type waterpower drain valve; Comprise valve body (1), it is characterized in that: in the vertical cylinder of valve body (1), be provided with the valve seat (2) of the tubular shape concentric with it, the bottom of valve seat (2) is drain chamber (7); Be provided with the valve gap (3) of dome-shaped at the top of valve body (1); Be provided with tube head protruding upward (16) at the top of valve gap (3), on tube head (16), be connected with top cover (15), be connected with suction sleeve (13) at the top of top cover (15); Between valve seat (2) and valve gap (3), be provided with barrier film (5), be provided with flap (4) in the top center of barrier film (5), flap (4) is fixed on the barrier film (5), between the bottom of the top of flap (4) and top cover (15), is provided with spring (8); The water-inlet cavity (6) of valve body (1) is through being communicated with the valve cover cavity (14) of valve gap (3) connecting tube (12).
2. diaphragm type waterpower drain valve according to claim 1 is characterized in that: flap (4) is fixed on the barrier film (5) through bolt (9), nut (10) and backing plate (11).
3. diaphragm type waterpower drain valve according to claim 1 is characterized in that: the vertical cylinder of valve seat (2), valve body (1), barrier film (5), the top view of flap (4), valve gap (3) and top cover (15) is centered close on the same vertical medial axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220249643 CN202629290U (en) | 2012-05-30 | 2012-05-30 | Diaphragm type hydraulic power drain valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220249643 CN202629290U (en) | 2012-05-30 | 2012-05-30 | Diaphragm type hydraulic power drain valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202629290U true CN202629290U (en) | 2012-12-26 |
Family
ID=47382493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220249643 Expired - Fee Related CN202629290U (en) | 2012-05-30 | 2012-05-30 | Diaphragm type hydraulic power drain valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202629290U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102678960A (en) * | 2012-05-30 | 2012-09-19 | 郑安犁 | Hydraulic driven diaphragm type drain valve |
| CN111706684A (en) * | 2020-07-03 | 2020-09-25 | 清环拓达(苏州)环境科技有限公司 | Pneumatic control flushing valve |
-
2012
- 2012-05-30 CN CN 201220249643 patent/CN202629290U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102678960A (en) * | 2012-05-30 | 2012-09-19 | 郑安犁 | Hydraulic driven diaphragm type drain valve |
| CN111706684A (en) * | 2020-07-03 | 2020-09-25 | 清环拓达(苏州)环境科技有限公司 | Pneumatic control flushing 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 |
Granted publication date: 20121226 Termination date: 20150530 |
|
| EXPY | Termination of patent right or utility model |