CN104235432A - External underground water pumping and recharging hydraulic dual-purpose valve - Google Patents
External underground water pumping and recharging hydraulic dual-purpose valve Download PDFInfo
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- CN104235432A CN104235432A CN201410470073.7A CN201410470073A CN104235432A CN 104235432 A CN104235432 A CN 104235432A CN 201410470073 A CN201410470073 A CN 201410470073A CN 104235432 A CN104235432 A CN 104235432A
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- hydraulic cylinder
- valve body
- rod
- annular valve
- flange
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/10—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit
- F16K11/20—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by separate actuating members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Multiple-Way Valves (AREA)
- Details Of Valves (AREA)
Abstract
The invention relates to the technical field of underground water exploitation and replenishment balance, and discloses an external underground water pumping and recharging hydraulic dual-purpose valve. The external underground water pumping and recharging hydraulic dual-purpose valve comprises an annular valve body, an upper hydraulic cylinder body and a lower hydraulic cylinder body; the top of the annular valve body is provided with an upper opening, and the bottom of the annular valve body is provided with a valve seat; the valve seat is provided with a lower opening; a stabilizing frame is arranged above the valve seat; the inner wall of the annular valve body is provided with a water outlet; an upper hydraulic tank is provided with an upper liquid communicating hole; the upper hydraulic cylinder body is provided with an upper piston; the upper piston is connected with an upper push rod; the upper push rod is connected with a seal cartridge; the lower hydraulic cylinder body is provided with a lower liquid communicating hole and a lower piston; the lower piston is connected with a lower push rod; the lower push rod is connected with a seal cartridge; the seal cartridges are arranged on the annular valve body in a sleeving manner. The external underground water pumping and recharging hydraulic dual-purpose valve has the beneficial effects that underground water pumping and recharging are realized under the function of water pressure and a compression spring, a hydraulic pump is used for controlling the movement of the seal cartridges, the seal cartridges are used for controlling the water flow rate during recharging, the influence of air bubbles on a permeable layer is reduced, the recharging efficiency is improved, the space is saved, and the operation is convenient.
Description
Technical field
The present invention relates to underground hydromining and fill weighing apparatus technical field, specifically a kind of external underground water draws water and recharges hydraulic dual-purpose valve.
Background technique
Along with socioeconomic fast development, underground water exhaustive exploitation, cause groundwater resources adopt mend unbalance, relate to groundwater environment problem and become increasingly conspicuous.The groundwater recharge method that people adopt usually has: ooze under the nature of ground, freely overboardly in motor-pumped well to recharge, arrange and recharge pipe and recharge in independent recharge well, often kind of method all exists certain drawback.So market has occurred draw water backflow device, can realize draws water has recharged function, but traditional backflow device that draws water still exists a lot of problem in use, such as:
1, same water pipe cannot be utilized to realize recharging of underground water and extract;
2, complexity is installed, goes wrong and need to change whole device;
Uncontrollable current size when 3, recharging, the change of water outlet pressure causes greatly carrying a large amount of bubble in water, and block permeable layer space between the space that will be attached to soil in the process of seepage flow, the time is not long, and permeable layer will major part block.
Summary of the invention
The object of the present invention is to provide a kind of external underground water to draw water and recharge hydraulic dual-purpose valve, realize underground water by waterpower and Compress Spring effect draw water and recharge, utilize the movement of hydraulic pump control stuffing box gland, the size of water flow when utilizing the mobile control of stuffing box gland to recharge, reduce bubble to the impact of permeable layer, improve and recharge efficiency, save space, easy to operate.
The present invention for achieving the above object, is achieved through the following technical solutions:
External underground water draws water and recharges hydraulic dual-purpose valve, it is characterized in that: comprise annular valve body, upper hydraulic cylinder and lower hydraulic cylinder, annular valve body top arranges upper shed, annular valve body bottom arranges valve seat, valve seat arranges under shed, in annular valve body, steady rest is set near seating position, steady rest was arranged the mouth of a river 24, in the middle part of steady rest, perforation is set, in perforation, valve rod is set, valve rod arranges limiting board away from valve seat one end, valve rod installs the flap corresponding with under shed near under shed one end, between flap and steady rest, Compress Spring is set, Compress Spring is enclosed within valve rod, annular valve body inwall sets out the mouth of a river, water outlet is positioned at above steady rest, seat bottom portion installs lower flange, on annular valve body outer wall, cover loads hydraulic cylinder, lower hydraulic cylinder is arranged on lower flange, lower hydraulic cylinder arranges lower liquid-through hole, bottom lower hydraulic cylinder, the second through hole is set, between the second through hole, lower push-rod is set, lower push-rod installs the lower piston adapted with lower hydraulic cylinder near lower flange one end, lower push-rod installs stuffing box gland away from lower flange one end, flange is installed at annular valve body top, on annular valve body outer wall, hydraulic cylinder loaded onto by cover, upper hydraulic cylinder is arranged on upper flange, upper hydraulic cylinder arranges liquid-through hole, first through hole is set bottom upper hydraulic cylinder, between the first through hole, upper push-rod is set, upper push-rod installs the upper piston adapted with upper hydraulic cylinder near upper flange one end, upper push-rod installs stuffing box gland away from upper flange one end, stuffing box gland is enclosed within annular valve body, stuffing box gland can shutoff water outlet completely.
Described upper flange and annular valve body top are threaded connection, and described upper flange and upper hydraulic cylinder are bolted.
Described lower flange and annular valve body bottom are threaded connection, and described lower flange and lower hydraulic cylinder are bolted.
Described steady rest and annular valve body are threaded connection.
Described valve rod and flap are threaded connection.
Described valve rod and limiting board are structure as a whole.
Contrast prior art, beneficial effect of the present invention is:
1, the present invention only needs only to use a valve, and one end is arranged on water pump, and one end is arranged on water pipe, can realize drawing water recharge two kinds of functions by a bite well, reduces engineering cost, adds practicability of the present invention;
2, the present invention adopts external hydraulic cylinder mounting type, and production technology is simple, ease of assembly, and assembly can be dismantled, and when assembly goes wrong, easily changes, and adds flexibility of the present invention;
3, structure of the present invention is simple, and device is small and exquisite, nature waterpower and Compress Spring active force can be utilized to control the closedown of under shed, realize groundwater recharge and draw water, greatly reducing engineering cost;
4, the present invention is when carrying out groundwater recharge, and at the outer eminence hydraulic control pump of well, can utilize the movement of hydraulic pump control stuffing box gland, when utilizing the mobile control of stuffing box gland to recharge, the size of water flow, reduces bubble to the impact of permeable layer, improve and recharge efficiency.
Accompanying drawing explanation
Accompanying drawing 1 recharges state profile for the present invention
Accompanying drawing 2 to draw water state profile for the present invention
Label shown in accompanying drawing: 1, annular valve body; 2, upper hydraulic cylinder; 3, lower hydraulic cylinder; 4, upper flange; 5, the first through hole; 6, upper shed; 7, upper piston; 8, upper push-rod; 9, stuffing box gland; 10, lower push-rod; 11, lower piston; 12, limiting board; 13, the second through hole; 14, valve seat; 15, steady rest; 16, flap; 17, Compress Spring; 18, valve rod; 19, lower flange; 20, lower liquid-through hole; 21, under shed; 22, water outlet; 23, upper liquid-through hole; 24, the mouth of a river is crossed.
Embodiment
Below in conjunction with specific embodiment, set forth the present invention further.Should be understood that these embodiments are only not used in for illustration of the present invention to limit the scope of the invention.In addition should be understood that those skilled in the art can make various changes or modifications the present invention, and these equivalent form of values fall within the application's appended claims limited range equally after the content of having read the present invention's instruction.
External underground water of the present invention draws water and recharges hydraulic dual-purpose valve, agent structure comprises: comprise annular valve body 1, upper hydraulic cylinder 2 and lower hydraulic cylinder 3, annular valve body 1 top arranges upper shed 6, annular valve body 1 bottom arranges valve seat 14, valve seat 14 is arranged under shed 21, in annular valve body 1, steady rest 15 is set near valve seat 14 position, steady rest 15 was arranged the mouth of a river 24, when conveniently drawing water, current are by steady rest 15, cross the mouth of a river 24 much larger than water outlet 22, it is such as 5-10 times of water outlet 22, in the middle part of steady rest 15, perforation is set, valve rod 18 is set in perforation, valve rod 18 arranges limiting board 12 away from valve seat 14 one end, limiting board 12 is greater than perforation, limiting board 12 can prevent valve rod 18 from coming off from perforation, valve rod 18 installs the flap 16 corresponding with under shed 21 near under shed 21 one end, Compress Spring 17 is set between flap 16 and steady rest 15, described Compress Spring 11 adopts corrosion-resistant stainless steel material to make, Compress Spring 17 is enclosed within valve rod 18, annular valve body 1 inwall sets out the mouth of a river 22, water outlet is positioned at above steady rest 15, lower flange 19 is installed bottom valve seat 14, on annular valve body 1 outer wall, cover loads hydraulic cylinder 3, lower hydraulic cylinder 3 is arranged on lower flange 19, lower hydraulic cylinder 3 arranges lower liquid-through hole 20, second through hole 13 is set bottom lower hydraulic cylinder 3, between the second through hole 13, lower push-rod 10 is set, lower push-rod 10 installs the lower piston 11 adapted with lower hydraulic cylinder 3 near lower flange 19 one end, lower push-rod 10 installs stuffing box gland 9 away from lower flange 19 one end, flange 4 is installed at annular valve body 1 top, on annular valve body 1 outer wall, hydraulic cylinder 2 loaded onto by cover, upper hydraulic cylinder 2 is arranged on upper flange 4, upper hydraulic cylinder 2 arranges liquid-through hole 23, first through hole 5 is set bottom upper hydraulic cylinder 2, between the first through hole 5, upper push-rod 8 is set, upper push-rod 8 installs the upper piston 7 adapted with upper hydraulic cylinder 2 near upper flange 4 one end, upper push-rod 8 installs stuffing box gland 9 away from upper flange 4 one end, stuffing box gland 9 is enclosed within annular valve body 1, stuffing box gland 9 and annular valve body 1 outer wall fit tightly, stuffing box gland 9 can shutoff water outlet 22 completely.Upper liquid-through hole 23 and lower liquid-through hole 20 connect oil pipe respectively, arrange quantitative hydraulic oil in oil pipe, arrange oil pump in the middle of oil pipe.Upper flange 4 top water pump, water receiving pipe bottom lower flange 19.When drawing water, liquid-through hole 23 oil-feed on oil pump control, lower liquid-through hole 20 is fuel-displaced, upper piston 7 drives upper push-rod 8, and upper push-rod 8 is with movable sealing sleeve 9 to move, until stuffing box gland 9 covers water outlet 22 completely to annular water law 1 water outlet 22 position, now due to the pressure of water and the draft of water pump, flap 16 oppresses Compress Spring 17, and under shed 21 is opened, and carries out drawing water operation.When needs recharge, the pressure of water and the tension force of Compress Spring make flap 16 and under shed 21 combine closely, now on oil pump control, liquid-through hole 23 is fuel-displaced, the oil-feed of lower liquid-through hole 20, lower piston 11 drives lower push-rod 10, lower push-rod 10 is with movable sealing sleeve 9 gradually away from water outlet 22, until water outlet 22 is opened completely, recharged by water outlet 22, by liquid-through hole on oil pump control 23, the flow direction of lower liquid-through hole 20 oil and flowing velocity, stuffing box gland 9 axially moves on annular valve body 1, by controlling the quantity of water outlet 22, carry out the control of recharge water flow, by water outlet 22, bubble is broken, reduce bubble to the impact of permeable layer, improve and recharge efficiency.The present invention only need use a valve, and one end is arranged on water pump, and one end is arranged on water pipe, as long as a bite well can realize drawing water recharge two kinds of functions, reduces engineering cost.
In order to easy for installation, described upper flange 4 is threaded connection with annular valve body 1 top, and described upper flange 4 is bolted with upper hydraulic cylinder 2.
In order to easy for installation, described lower flange 19 is threaded connection with annular valve body 1 bottom, and described lower flange 13 is bolted with lower hydraulic cylinder 3.
For ease of assembling, steady rest 15 arranges outside thread, and annular valve body 1 inside arranges internal thread, and steady rest 15 and annular valve body 1 are threaded connection.
For ease of changing, described valve rod 18 and flap 16 are threaded connection.
In order to stable connection, described valve rod 18 and limiting board 12 are structure as a whole.
Upper end of the present invention is near upper shed 6 one end, and described lower end is near under shed 21 one end.
Embodiment:
Embodiment 1: a kind of external underground water draws water and recharges hydraulic dual-purpose valve, comprise annular valve body 1, upper hydraulic cylinder 2 and lower hydraulic cylinder 3, annular valve body 1 top arranges upper shed 6, annular valve body 1 bottom arranges valve seat 14, valve seat 14 is arranged under shed 21, in annular valve body 1, steady rest 15 is set near valve seat 14 position, for ease of assembling, steady rest 15 arranges outside thread, annular valve body 1 inside arranges internal thread, steady rest 15 and annular valve body 1 are threaded connection, steady rest 15 was arranged the mouth of a river 24, when conveniently drawing water, current are by steady rest 15, cross the mouth of a river 24 much larger than water outlet 22, it is such as 5-10 times of water outlet 22, in the middle part of steady rest 15, perforation is set, valve rod 18 is set in perforation, valve rod 18 arranges limiting board 12 away from valve seat 14 one end, limiting board 12 is greater than perforation, limiting board 12 and valve rod 18 are structure as a whole, limiting board 12 can prevent valve rod 18 from coming off from perforation, valve rod 18 installs the flap 16 corresponding with under shed 21 near under shed 21 one end, described valve rod 18 and flap 16 are threaded connection, be convenient to flap 16 after long-time use dismantle, change, Compress Spring 17 is set between flap 16 and steady rest 15, described Compress Spring 11 adopts corrosion-resistant stainless steel material to make, Compress Spring 17 is enclosed within valve rod 18, annular valve body 1 inwall sets out the mouth of a river 22, water outlet is positioned at above steady rest 15, lower flange 19 is installed bottom valve seat 14, lower flange 19 and annular valve body 1 bottom are threaded connection, on annular valve body 1 outer wall, cover loads hydraulic cylinder 3, lower hydraulic cylinder 3 is arranged on lower flange 19, lower flange 13 and lower hydraulic cylinder 3 are bolted, lower hydraulic cylinder 3 arranges lower liquid-through hole 20, second through hole 13 is set bottom lower hydraulic cylinder 3, between the second through hole 13, lower push-rod 10 is set, lower push-rod 10 installs the lower piston 11 adapted with lower hydraulic cylinder 3 near lower flange 19 one end, lower push-rod 10 installs stuffing box gland 9 away from lower flange 19 one end, flange 4 is installed at annular valve body 1 top, upper flange 4 and annular valve body 1 top are threaded connection, on annular valve body 1 outer wall, hydraulic cylinder 2 loaded onto by cover, upper hydraulic cylinder 2 is arranged on upper flange 4, upper flange 4 and upper hydraulic cylinder 2 are bolted, upper hydraulic cylinder 2 arranges liquid-through hole 23, first through hole 5 is set bottom upper hydraulic cylinder 2, between the first through hole 5, upper push-rod 8 is set, upper push-rod 8 installs the upper piston 7 adapted with upper hydraulic cylinder 2 near upper flange 4 one end, upper push-rod 8 installs stuffing box gland 9 away from upper flange 4 one end, stuffing box gland 9 is enclosed within annular valve body 1, stuffing box gland 9 and annular valve body 1 outer wall fit tightly, stuffing box gland 9 can shutoff water outlet 22 completely.The present invention adopts external hydraulic cylinder mounting type, and production technology is simple, and multiple assembly adopts screw thread, bolt mode connects, and ease of assembly, when assembly goes wrong, easily carries out dismantling, changing, add flexibility of the present invention.Upper liquid-through hole 23 and lower liquid-through hole 20 connect oil pipe respectively, arrange quantitative hydraulic oil in oil pipe, arrange oil pump in the middle of oil pipe.Upper flange 4 top water pump, water receiving pipe bottom lower flange 19.When drawing water, liquid-through hole 23 oil-feed on oil pump control, lower liquid-through hole 20 is fuel-displaced, upper piston 7 drives upper push-rod 8, and upper push-rod 8 is with movable sealing sleeve 9 to move, until stuffing box gland 9 covers water outlet 22 completely to annular water law 1 water outlet 22 position, now due to the pressure of water and the draft of water pump, flap 16 oppresses Compress Spring 17, and under shed 21 is opened, and carries out drawing water operation.When needs recharge, the pressure of water and the tension force of Compress Spring make flap 16 and under shed 21 combine closely, now on oil pump control, liquid-through hole 23 is fuel-displaced, the oil-feed of lower liquid-through hole 20, lower piston 11 drives lower push-rod 10, lower push-rod 10 is with movable sealing sleeve 9 gradually away from water outlet 22, until water outlet 22 is opened completely, recharged by water outlet 22, by liquid-through hole on oil pump control 23, the flow direction of lower liquid-through hole 20 oil and flowing velocity, stuffing box gland 9 axially moves on annular valve body 1, by controlling the quantity of water outlet 22, carry out the control of recharge water flow, by water outlet 22, bubble is broken, reduce bubble to the impact of permeable layer, improve and recharge efficiency.The present invention only need use a valve, and one end is arranged on water pump, and one end is arranged on water pipe, can realize drawing water and recharge two kinds of functions, greatly reduce engineering cost, increase work efficiency, add practicability of the present invention by a bite well.
Claims (6)
1. external underground water draws water and recharges hydraulic dual-purpose valve, it is characterized in that: comprise annular valve body (1), upper hydraulic cylinder (2) and lower hydraulic cylinder (3), annular valve body (1) top arranges upper shed (6), annular valve body (1) bottom arranges valve seat (14), valve seat (14) is arranged under shed (21), in annular valve body (1), steady rest (15) is set near valve seat (14) position, steady rest (15) was arranged the mouth of a river (24), steady rest (15) middle part arranges perforation, valve rod (18) is set in perforation, valve rod (18) arranges limiting board (12) away from valve seat (14) one end, valve rod (18) installs the flap (16) corresponding with under shed (21) near under shed (21) one end, Compress Spring (17) is set between flap (16) and steady rest (15), Compress Spring (17) is enclosed within valve rod (18), annular valve body (1) inwall sets out the mouth of a river (22), water outlet is positioned at steady rest (15) top, lower flange (19) is installed in valve seat (14) bottom, on annular valve body (1) outer wall, cover loads hydraulic cylinder (3), lower hydraulic cylinder (3) is arranged on lower flange (19), lower hydraulic cylinder (3) arranges lower liquid-through hole (20), lower hydraulic cylinder (3) bottom arranges the second through hole (13), lower push-rod (10) is set between the second through hole (13), lower push-rod (10) installs the lower piston (11) adapted with lower hydraulic cylinder (3) near lower flange (19) one end, lower push-rod (10) installs stuffing box gland (9) away from lower flange (19) one end, flange (4) is installed at annular valve body (1) top, on annular valve body (1) outer wall, hydraulic cylinder (2) loaded onto by cover, upper hydraulic cylinder (2) is arranged on upper flange (4), upper hydraulic cylinder (2) is arranged liquid-through hole (23), upper hydraulic cylinder (2) bottom arranges the first through hole (5), upper push-rod (8) is set between the first through hole (5), upper push-rod (8) installs the upper piston (7) adapted with upper hydraulic cylinder (2) near upper flange (4) one end, upper push-rod (8) installs stuffing box gland (9) away from upper flange (4) one end, stuffing box gland (9) is enclosed within annular valve body (1), stuffing box gland (9) can shutoff water outlet (22) completely.
2. external underground water according to claim 1 draws water and recharges hydraulic dual-purpose valve, it is characterized in that: described upper flange (4) and annular valve body (1) top are threaded connection, described upper flange (4) and upper hydraulic cylinder (2) are bolted.
3. external underground water according to claim 1 draws water and recharges hydraulic dual-purpose valve, it is characterized in that: described lower flange (19) and annular valve body (1) bottom are threaded connection, described lower flange (19) and lower hydraulic cylinder (3) are bolted.
4. external underground water according to claim 1 draws water and recharges hydraulic dual-purpose valve, it is characterized in that: described steady rest (15) and annular valve body (1) are threaded connection.
5. external underground water according to claim 1 draws water and recharges hydraulic dual-purpose valve, it is characterized in that: described valve rod (18) and flap (16) are threaded connection.
6. external underground water according to claim 1 draws water and recharges hydraulic dual-purpose valve, it is characterized in that: described valve rod (18) and limiting board (12) are structure as a whole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410470073.7A CN104235432B (en) | 2014-09-13 | 2014-09-13 | A kind of external subsoil water draws water and recharges hydraulic dual-purpose valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410470073.7A CN104235432B (en) | 2014-09-13 | 2014-09-13 | A kind of external subsoil water draws water and recharges hydraulic dual-purpose valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104235432A true CN104235432A (en) | 2014-12-24 |
| CN104235432B CN104235432B (en) | 2016-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410470073.7A Active CN104235432B (en) | 2014-09-13 | 2014-09-13 | A kind of external subsoil water draws water and recharges hydraulic dual-purpose valve |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109323026A (en) * | 2018-08-24 | 2019-02-12 | 河南环发工程有限公司 | A kind of underground swing type draws water recharge automatic transfer valve |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3672628A (en) * | 1970-11-25 | 1972-06-27 | Westinghouse Electric Corp | Controller for a back seated valve |
| CN201311123Y (en) * | 2008-06-06 | 2009-09-16 | 刘娇娜 | Pumping and refilling automatic water diversion device |
| CN201827059U (en) * | 2010-10-25 | 2011-05-11 | 陕西省红光冶金设备厂 | Recharging and pump lifting valve for submersible pump |
| CN103644323A (en) * | 2013-12-17 | 2014-03-19 | 中国地质科学院水文地质环境地质研究所 | Automatic efficient pumping and recharging convertor |
| CN204062011U (en) * | 2014-09-13 | 2014-12-31 | 山东沃亚森曼机械科技有限公司 | A kind of external underground water draws water and recharges hydraulic dual-purpose valve |
-
2014
- 2014-09-13 CN CN201410470073.7A patent/CN104235432B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3672628A (en) * | 1970-11-25 | 1972-06-27 | Westinghouse Electric Corp | Controller for a back seated valve |
| CN201311123Y (en) * | 2008-06-06 | 2009-09-16 | 刘娇娜 | Pumping and refilling automatic water diversion device |
| CN201827059U (en) * | 2010-10-25 | 2011-05-11 | 陕西省红光冶金设备厂 | Recharging and pump lifting valve for submersible pump |
| CN103644323A (en) * | 2013-12-17 | 2014-03-19 | 中国地质科学院水文地质环境地质研究所 | Automatic efficient pumping and recharging convertor |
| CN204062011U (en) * | 2014-09-13 | 2014-12-31 | 山东沃亚森曼机械科技有限公司 | A kind of external underground water draws water and recharges hydraulic dual-purpose valve |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109323026A (en) * | 2018-08-24 | 2019-02-12 | 河南环发工程有限公司 | A kind of underground swing type draws water recharge automatic transfer valve |
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| Publication number | Publication date |
|---|---|
| CN104235432B (en) | 2016-06-29 |
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