CN205077548U - Pit shaft formula immersible pump mounting structure with breather valve - Google Patents
Pit shaft formula immersible pump mounting structure with breather valve Download PDFInfo
- Publication number
- CN205077548U CN205077548U CN201520825154.4U CN201520825154U CN205077548U CN 205077548 U CN205077548 U CN 205077548U CN 201520825154 U CN201520825154 U CN 201520825154U CN 205077548 U CN205077548 U CN 205077548U
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- CN
- China
- Prior art keywords
- pit shaft
- valve body
- valve
- mounting structure
- submersible pump
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- 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 relates to a pit shaft formula immersible pump mounting structure with breather valve, it includes pit shaft (1), the bottom of pit shaft (1) is provided with immersible pump (2), the upper segment outer wall of pit shaft (1) is with external fixed, its characterized in that be provided with on the top apron of pit shaft (1) breather valve (3), the top lateral wall of pit shaft (1) is provided with outlet conduit (4), breather valve (3) including last valve body (3.1) of upper and lower each other intercommunication and valve body (3.2) down, a retaining ring of top formation of lower valve body (3.3), upward be provided with in valve body (3.1) case (3.4), be provided with in valve body (3.2) down one floater (3.6). The utility model discloses pit shaft formula immersible pump mounting structure with breather valve has that the pit shaft formula of guaranteeing immersible pump is reliable, the advantage of safe operation.
Description
Technical field
The utility model relates to a kind of well shaft type submersible pump mounting structure with breather valve.
Background technology
Submersible pump is flexible for installation because having, and pumping plant building size is little, adapts to SEA LEVEL VARIATION and is widely used in all trades and professions greatly.The installation form of submersible pump is varied, generally has guide rail (guide rod) manifold type, well shaft type, fixed, cable-stayed type, floating vessel type etc.Wherein well shaft type is provided with steel formula, suspension, concrete prefabricated pit shaft etc., especially with steel well shaft type because to the uncomplicated and more employing of pump room structure requirement.
Steel well shaft type is installed, namely submersible pump is arranged in the vertical shaft cylinder of steel, by submersible pump deadweight (having the positioner of anti-torsion) in place, submersible pump cable stretches out outside pit shaft on the top of pit shaft, cable and cylindrical shell seal, the threeway that water is positioned at pump house Chi Ding top from pit shaft extrudes, and pit shaft top is steel deck-plate.Manually-operated gate is installed as exhaust use by general manufacturer only on the cover board perforate, and in actual use, we find a lot of not enough and defect, mainly contain following:
At unmanned, in the pump house of Long-distance Control, upon actuation, water can raise up well shaft type submersible pump fast, owing to needing to place water pump in pit shaft, pit shaft generally does very large, the inside air is also many, is gathered in upper wellbore compression-expansion instantaneously and produces very large pressure under water jacking, and air can from top cover or cable seal be not severely punished goes out, have to reinstall and seal also reinforcing and tighten up closure stud, waste time and energy.After top cover reinforcing compresses, also can produce certain harm, the water channel because air has to walk, cause setting-out pipeline water flow to break post, flow velocity changes, and thus occurs water hammer, causes water supply line and unit vibration.This phenomenon mainly appears in the water pump of parallel running.A shade better in the water drainage irrigation pumping station that isolated operation, pump head are lower.
Also can produce a breakoff phenomenon is in addition: when termination of pumping, pumping line flap valve or flap valve are closed, water in pit shaft flows under the influence of gravity in river (pond), negative pressure is produced owing to not entering to cause in pit shaft with outside air, cause pit shaft to have and inhale flat possibility, go round and begin again and be unfavorable for the safety of water pump and pit shaft.
For above problem, seek a kind ofly to ensure that well shaft type submersible pump is reliable, the well shaft type submersible pump mounting structure with breather valve of safe operation is particularly important.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned deficiency, provides a kind of and ensures that well shaft type submersible pump is reliable, the well shaft type submersible pump mounting structure with breather valve of safe operation.
The purpose of this utility model is achieved in that
A kind of well shaft type submersible pump mounting structure with breather valve, it comprises pit shaft, the bottom of described pit shaft is provided with submersible pump, the epimere outer wall of described pit shaft and the external world are fixed, the top blind flange of described pit shaft is provided with breather valve, the top sidewall of described pit shaft is provided with outlet conduit, described breather valve comprises the upper valve body and lower valve body that are interconnected up and down, a back-up ring is formed on the top of lower valve body, spool is provided with in described upper valve body, described spool comprises the top of a montant and montant, the first valve disc that middle part and bottom are arranged respectively, second valve disc and the 3rd valve disc, the inside middle portion wall of described upper valve body is provided with a circle spacing ring, the sidewall of the upper valve body above spacing ring draws porting, a ball float is provided with in described lower valve body.
The size of described second valve disc and the consistent size of spacing ring institute enclosing region, the size of described first valve disc is greater than the size of the second valve disc.
First valve disc is provided with the aperture of multiple above-below direction.
The sidewall of lower valve body is provided with multiple pore.
Compared with prior art, the beneficial effects of the utility model are:
The utility model has with the well shaft type submersible pump mounting structure of breather valve and ensures that well shaft type submersible pump is reliable, the advantage of safe operation.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model with the well shaft type submersible pump mounting structure of breather valve.
Fig. 2 is the exhaust condition structural representation of breather valve.
Fig. 3 is the suction condition structural representation of breather valve.
Fig. 4 is the external structure schematic diagram of breather valve.
Wherein:
Pit shaft 1
Submersible pump 2
Breather valve 3, upper valve body 3.1, lower valve body 3.2, seal 3.3, spool 3.4, montant 3.4.1, the first valve disc 3.4.2, the second valve disc 3.4.3, the 3rd valve disc 3.4.4, spacing ring 3.5, ball float 3.6, pore 3.7, porting 3.8
Outlet conduit 4.
Detailed description of the invention
See Fig. 1, a kind of well shaft type submersible pump mounting structure with breather valve that the utility model relates to, it comprises pit shaft 1, the bottom of described pit shaft 1 is provided with submersible pump 2, epimere outer wall and the external world of described pit shaft 1 are fixed, the top blind flange of described pit shaft 1 is provided with breather valve 3, the top sidewall of described pit shaft 1 is provided with outlet conduit 4, described breather valve 3 comprises the upper valve body 3.1 and lower valve body 3.2 that are interconnected up and down, seal 3.3 is provided with between upper valve body 3.1 and lower valve body 3.2, the seal 3.3 has part to stretch in lower valve body 3.3, the top of lower valve body 3.3 is made to form the up-small and down-big back-up ring of an opening, this back-up ring is floater seal face.The spool 3.4 that can move up and down is provided with in described upper valve body 3.1, described spool 3.4 comprises the top of a montant 3.4.1 and montant 3.4.1, the first valve disc 3.4.2 that middle part and bottom are arranged respectively, second valve disc 3.4.3 and the 3rd valve disc 3.4.4, the inside middle portion wall of described upper valve body 3.1 is provided with a circle spacing ring 3.5, the sidewall of the upper valve body 3.1 above spacing ring 3.5 draws porting 3.8, the size of described first valve disc 3.4.2 is consistent with the inner wall size of upper valve body 3.1, when spool 3.4 is fallen, the first valve disc 3.4.2 can be held on spacing ring 3.5, the size of described second valve disc 3.4.3 and the consistent size of spacing ring 3.5 enclosing region, when making spool 3.4 rise to highest order, the second valve disc 3.4.3 fills spacing ring 3.5 enclosing region just, the size of described 3rd valve disc 3.4.4 is less than the size of the second valve disc 3.4.3.A ball float 3.6 is provided with in described lower valve body 3.2, ball float 3.6 can float up to the back-up ring place of seal 3.3 formation according to buoyancy of water, now ball float 3.6 is by the 3rd valve disc 3.4.4 jack-up of spool 3.4, thus the second valve disc 3.4.3 is positioned at spacing ring 3.5 place, thus upper valve body 3.1 and lower valve body 3.2 are separated, ball float 3.6 also can due to the bottom in gravity fall to lower valve body 3.2, and spool 3.4 falls, and the first valve disc 3.4.2 is held on spacing ring 3.5.Wherein, the first valve disc 3.4.2 is provided with the aperture of multiple above-below direction, the sidewall of lower valve body 3.2 is provided with multiple pore 3.7.
Operating principle:
When submersible pump starts, water floating upward quickly, make the ball float floating upward quickly be arranged in the breather valve in pit shaft top blind flange, ball float jacking the 3rd valve disc, air in pit shaft is outwardly discharged, when ball float is when buoyancy of water effect float downward is to floater seal face, is close to floater seal face, water can not be discharged.This is the expiration (exhaust) of breather valve.When submersible pump cuts out, the water in pit shaft can fall under gravity, and ball float falls thereupon, and spool falls to closing under own wt.Pit shaft is caused to produce negative pressure after closing for not making spool, first valve disc has aperture, outside air is entered in pit shaft in right amount, can not make like this to produce very large negative pressure in pit shaft, ensure that the safety of pit shaft and submersible pump, is also mainly consider once large quantity of air enters in cylindrical shell after termination of pumping, and water can fall very soon under gravity and large quantity of air effect, submersible pump is impelled to accelerate reversing, unfavorable submersible pump safety.According to principle, the effect of this outlet valve is in fact for calling out little suction.
The making of breather valve and mounting method are: the general steel pipe and flange and encapsulant of adopting makes; ball float can with hollow rubber ball or the thicker stainless steel ball of wall thickness; spool adopts steel material processing; encapsulant is generally rubber (because rubber is softer; seal more reliable); what ball float was arranged on steel pipe manufacturing has in end cylindrical shell; ball float cylindrical shell need do a little longer; perforate around cylindrical shell; the generally not perforate in 5cm of cylinder body bottom upper limb; object makes to be filled with water in cylindrical shell (lower valve body), the unlikely damage of ball float that protection is fallen.This breather valve at pit shaft top mounting method is: cover perforate at pit shaft, installs short tube and flange, puts into subordinate's valve body under breather valve, make the valve block flange outside breather valve with on top cover mounting flange aim at bolton.Generally be connected with pipeline at the porting of breather valve, the water of discharging on a small quantity during exhaust is not sprayed in pump house.
The utility model obtains practice test with the well shaft type submersible pump mounting structure of breather valve, Jiangsu Helen's petrochemical industry one of constructing in my unit, the second phase 100,000 tons of/day water factories water intake engineering 6 well shaft type submersible pumps on, Successful utilization on the emerging clear special steel Water logged area in Jiangyin, have and make simple, simple installation, prominent function, the feature of long service life, believes that this valve has wide promotion prospect.
Claims (4)
1. the well shaft type submersible pump mounting structure with breather valve, it comprises pit shaft (1), the bottom of described pit shaft (1) is provided with submersible pump (2), epimere outer wall and the external world of described pit shaft (1) are fixed, the top blind flange that it is characterized in that described pit shaft (1) is provided with breather valve (3), the top sidewall of described pit shaft (1) is provided with outlet conduit (4), described breather valve (3) comprises the upper valve body (3.1) and lower valve body (3.2) that are interconnected up and down, a back-up ring is formed on the top of lower valve body (3.3), spool (3.4) is provided with in described upper valve body (3.1), described spool (3.4) comprises the top of a montant (3.4.1) and montant (3.4.1), the first valve disc (3.4.2) that middle part and bottom are arranged respectively, second valve disc (3.4.3) and the 3rd valve disc (3.4.4), the inside middle portion wall of described upper valve body (3.1) is provided with a circle spacing ring (3.5), the sidewall of the upper valve body (3.1) of spacing ring (3.5) top draws porting (3.8), a ball float (3.6) is provided with in described lower valve body (3.2).
2. a kind of well shaft type submersible pump mounting structure with breather valve according to claim 1, it is characterized in that the size of described second valve disc (3.4.3) and the consistent size of spacing ring (3.5) institute enclosing region, the size of described first valve disc (3.4.2) is greater than the size of the second valve disc (3.4.3).
3. a kind of well shaft type submersible pump mounting structure with breather valve according to claim 1, is characterized in that the aperture the first valve disc (3.4.2) being provided with multiple above-below direction.
4. a kind of well shaft type submersible pump mounting structure with breather valve according to claim 1, the sidewall that it is characterized in that lower valve body (3.2) is provided with multiple pore (3.7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520825154.4U CN205077548U (en) | 2015-10-24 | 2015-10-24 | Pit shaft formula immersible pump mounting structure with breather valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520825154.4U CN205077548U (en) | 2015-10-24 | 2015-10-24 | Pit shaft formula immersible pump mounting structure with breather valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205077548U true CN205077548U (en) | 2016-03-09 |
Family
ID=55429963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520825154.4U Expired - Fee Related CN205077548U (en) | 2015-10-24 | 2015-10-24 | Pit shaft formula immersible pump mounting structure with breather valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205077548U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107091221A (en) * | 2017-06-15 | 2017-08-25 | 柳州市文宇科技服务有限公司 | Water plug under a kind of agricultural well |
-
2015
- 2015-10-24 CN CN201520825154.4U patent/CN205077548U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107091221A (en) * | 2017-06-15 | 2017-08-25 | 柳州市文宇科技服务有限公司 | Water plug under a kind of agricultural well |
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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: 20160309 Termination date: 20161024 |