CN203729381U - Adjustable constant-pressure experimental water supply system - Google Patents
Adjustable constant-pressure experimental water supply system Download PDFInfo
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- CN203729381U CN203729381U CN201420087206.8U CN201420087206U CN203729381U CN 203729381 U CN203729381 U CN 203729381U CN 201420087206 U CN201420087206 U CN 201420087206U CN 203729381 U CN203729381 U CN 203729381U
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Abstract
The utility model belongs to the technical field of geo-technical testing and relates to an adjustable constant-pressure experimental water supply system. The system comprises a high-pressure water supply system, a pressure control system, and a decompression constant-pressure system; the pressure control system comprises an expansion tank, a safety valve, a pressure controller and a power box; the expansion tank, the safety valve and the pressure controller are connected to a main pipe in order; the power box supplies power to the pressure controller; a contactor is disposed in the power box and is connected with a water pump and the pressure controller. The decompression constant-pressure system comprises a primary decompression valve, a secondary decompression valve, a primary pressure gauge, a secondary pressure gauge, a check valve, an exhaust valve and a manifold; the primary decompression valve, the primary pressure gauge, the check valve and the exhaust valve are connected to form a primary branch pipe; the secondary decompression valve, the secondary pressure gauge, the check valve and the exhaust valve are connected to form a secondary branch pipe; the primary branch pipe and the secondary branch pipe are connected with the main pipe through a three-way ball valve and are connected with the manifold through a three-way joint; the distribution end of the manifold is provided with a ball valve. The adjustable constant-pressure experimental water supply system allows seepage pressure to be precisely adjusted and is simple in structure, convenient to operate and highly stable, and precision and efficiency of a seepage experiment can be effectively improved.
Description
Technical field
The utility model relates to a kind of adjustable constant-pressure experiment water system, for soil test technique field.
Background technology
The water supply installation of testing for seepage through soil mass at present, how to form according to Ma Shi bottle principle design, regulate into consolidation pressure by the position that changes Ma Shi bottle, while so adopting Ma Shi bottle seepage flow, enter the less stable of consolidation pressure, its limited adjustment range is in Ma Shi bottle position, and seepage discharge is limited to Ma Shi bottle volume, is difficult to ensure range and the precision of seepage through soil mass experiment, cause Experiment Result to depart from reality, do not possess reference significance.In addition, Ma Shi bottle Seepage Experiment efficiency is lower, and single Ma Shi bottle only can sample of seepage flow, especially the Seepage Experiment cycle of unsaturated soil is longer, water requirement is larger, and pressure controling precision is had relatively high expectations, and traditional Ma Shi bottle water supply installation cannot meet batch experiment demand.
Summary of the invention
Not high for overcoming traditional Seepage Experiment water supply installation pressure controling precision, be limited to position and the volume of Ma Shi bottle, and the shortcoming such as conventional efficient is lower, the utility model provides a kind of adjustable constant-pressure experiment water system, and this water system is not only easy to operate, and fine adjustment enters consolidation pressure, and there is higher stability, improve conventional efficient, make Seepage Experiment data more reliable, have more guiding value.
The utility model solves the technical scheme that its technical problem adopts: a kind of adjustable constant-pressure experiment water system, comprise high service system, control pressurer system, decompression constant-voltage system, high service system comprises water pump, storage tank, strainer valve and flap valve, described water pump, strainer valve and flap valve are serially connected with on supervisor successively; Control pressurer system comprises expansion drum, safety valve, pressure controller and power supply box, described expansion drum, it is upper that safety valve and pressure controller are connected to supervisor successively, and described power supply box is powered to pressure controller, in it, be provided with contactor, described contactor is connected with water pump and pressure controller; Decompression constant-voltage system comprises one-level pressure relief valve, second depressurized valve, first class pressure table, secondary pressure table, flap valve, outlet valve and condensate correcting-distribuing device, described one-level pressure relief valve and first class pressure table, flap valve and outlet valve connect and compose one-level arm, described second depressurized valve and secondary pressure table, flap valve and outlet valve connect and compose secondary arm, and described one-level arm is connected with supervisor by tee ball valve with secondary arm, and be connected with condensate correcting-distribuing device by tee junction, described condensate correcting-distribuing device divides water end (W.E.) to be furnished with straight-through valve.
Above-mentioned water pump is three-cylinder plunger pump, and its theoretical delivery is 8L/min, and operating pressure is 6MPa, above-mentioned storage tank is organic glass case, and its water storage volume is 100L, and above-mentioned strainer valve and flap valve are made up of brass, above-mentioned supervisor is stainless steel tube, and its inside nominal diameter is DN15, above-mentioned expansion drum is capsule type air-pressure tank, its water storage volume is 24L, operating pressure is 1.6MPa, above-mentioned safety valve is adjustable spring safety valve, is made up of brass, and its release pressure adjustable range is 1.0-2.0MPa, above-mentioned pressure controller is optoelectronic induction pressure switch for water pump, adjustable governor pressure scope is 0 one 1.6MPa, and above-mentioned power supply box is made up of stainless steel, and above-mentioned contactor is A.C. contactor, above-mentioned one-level pressure relief valve is piston type adjustable compression release valve, made by brass, its output pressure adjustable range is 0.1-0.8MPa, above-mentioned first class pressure table range is 0 one 1.6MPa, above-mentioned second depressurized valve is piston type adjustable compression release valve, made by stainless steel, its output pressure adjustable range is 1.0-2.5MPa, above-mentioned secondary pressure table range is 0-2.5MPa, above-mentioned flap valve and outlet valve are made up of brass, above-mentioned condensate correcting-distribuing device is to go out formula current divider into five, made by stainless steel, above-mentioned one-level arm, secondary arm, tee ball valve and tee junction are made up of stainless steel, its inside nominal diameter is DN15.
The beneficial effects of the utility model are, 1. water pump is three-cylinder plunger pump, higher discharge pressure and flow can be provided, can meet multistage pressure control and batch experiment demand, improve Seepage Experiment and efficiency, outlet is furnished with strainer valve and flap valve, and the ill-effect of solid particle to each valve instrument in effective anti-sealing reduces the adverse effect that current drive in the wrong direction to water pump; 2. expansion drum is capsule type air-pressure tank, current are directly contacted with air bag, avoid the corrosion function of current to metal can, in Seepage Experiment, effectively absorb because valve, water pump etc. open and close caused impact of water hammer, coordinate safety valve and pressure controller to use, avoid water pump frequent starting, realize water pump and open and close automation, and then minimizing electricity consumption, extend water pump application life, ensure the stable operation of Seepage Experiment long-term safety; 3. adopt Double-stage adjustable reducing valve, can meet different experiments pressure demand, in the metastable situation of inlet pressure, it can ensure that outlet pressure is constant in different pressure ratings, be furnished with flap valve and outlet valve, effectively prevent the adverse effect that current drive in the wrong direction to reducing valve, reduce the Seepage Experiment error that gas causes, improve Seepage Experiment range and precision; 4. utilize condensate correcting-distribuing device can meet many group experiments operation simultaneously, effectively improve Seepage Experiment efficiency, be furnished with the controlled discharge of making of straight-through valve, meet different experiments demand and be independent of each other.5. native system is simple in structure, easy to operate, and cost is lower, for pressure controling precision have relatively high expectations, water requirement batch Seepage Experiment large and that the cycle is grown has significant applicability.Adjustable constant-pressure experiment water system is less demanding to operating experience, and applicability is stronger, significant for the reference value that improves Seepage Experiment result.
Brief description of the drawings
Fig. 1 is the system syndeton schematic diagram of embodiment mono-of the present utility model
Fig. 2 is the system syndeton schematic diagram of embodiment bis-of the present utility model
In figure: 1. water pump, 2. storage tank, 3. strainer valve, 4. flap valve, 5. supervisor, 6. expansion drum, 7. safety valve, 8. pressure controller, 9. power supply box, 10. contactor, 11. one-level pressure relief valves, 12. first class pressure tables, 13. second depressurized valves, 14. secondary pressure tables, 15. outlet valves, 16. condensate correcting-distribuing devices, 17. one-level arms, 18. secondary arms, 19. tee ball valves, 20. tee junctions, 21. straight-through valves
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Embodiment mono-
A kind of adjustable constant-pressure experiment water system, comprises high service system, control pressurer system, decompression constant-voltage system, and high service system comprises water pump 1, storage tank 2, strainer valve 3 and flap valve 4, described water pump 1, strainer valve 3 and flap valve 4 are serially connected with on supervisor 5 successively, control pressurer system comprises expansion drum 6, safety valve 7, pressure controller 8 and power supply box 9, described expansion drum 6, safety valve 7 and pressure controller 8 are connected on supervisor 5 successively, described power supply box 9 is powered to pressure controller 8, is provided with contactor 10 in it, and described contactor 10 is connected with water pump 1 and pressure controller 8, decompression constant-voltage system comprises one-level pressure relief valve 11, first class pressure table 12, second depressurized valve 13, secondary pressure table 14, flap valve 4, outlet valve 15 and condensate correcting-distribuing device 16, described one-level pressure relief valve 11 and first class pressure table 12, flap valve 4 and outlet valve 15 connect and compose one-level arm 17, described second depressurized valve 13 and secondary pressure table 14, flap valve 4 and outlet valve 15 connect and compose secondary arm 18, described one-level arm 17 is connected with supervisor 5 by tee ball valve 19 with secondary arm 18, and be connected with condensate correcting-distribuing device 16 by tee junction 20, 16 points of water end (W.E.)s of described condensate correcting-distribuing device are provided with straight-through valve 21, above-mentioned water pump 1 is three-cylinder plunger pump, and its theoretical delivery is 8L/min, and operating pressure is 6MPa, above-mentioned storage tank 2 is organic glass case, and its water storage volume is 100L, and above-mentioned strainer valve 3 and flap valve 4 are made up of brass, above-mentioned supervisor 5 is stainless steel tube, and its inside nominal diameter is DN15, above-mentioned expansion drum 6 is capsule type air-pressure tank, its water storage volume is 24L, operating pressure is 1.6MPa, above-mentioned safety valve 7 is adjustable spring safety valve, is made up of brass, and its release pressure adjustable range is 1.0-2.0MPa, above-mentioned pressure controller 8 is optoelectronic induction pressure switch for water pump, adjustable governor pressure scope is 0-1.6MPa, and above-mentioned power supply box 9 is made up of stainless steel, and above-mentioned contactor 10 is A.C. contactor, above-mentioned one-level pressure relief valve 11 is piston type adjustable compression release valve, made by brass, its output pressure adjustable range is 0.1-0.8MPa, above-mentioned first class pressure table 12 range is 0-1.6MPa, above-mentioned second depressurized valve 13 is piston type adjustable compression release valve, made by stainless steel, its output pressure adjustable range is 1.0-2.5MPa, above-mentioned secondary pressure table 14 range is 0-2.5MPa, above-mentioned flap valve 4 and outlet valve 15 are made up of brass, above-mentioned condensate correcting-distribuing device 16 is to go out formula current divider into five, made by stainless steel, above-mentioned one-level arm 17, secondary arm 18, tee ball valve 19 and tee junction 20 are made up of stainless steel, its inside nominal diameter is DN15.
Operating procedure of the present utility model is: the first, prepare: storage tank is filled to water, check the connection of each pipe fitting, valve and power line, close one-level pressure relief valve and second depressurized valve, close tee ball valve and straight-through valve simultaneously, open outlet valve; Second, arrange: according to Seepage Experiment demand, by pressure controller, water pump engaging pressure is set, if experiment operating pressure is 0.5MPa, it is 0.7MPa that starting mode of pump pressure can be set, water pump closing presure is 1.2MPa, in the time that system pressure is less than or equal to 0.7MPa, starting mode of pump, in the time that system pressure equals 1.2MPa, water pump cuts out, and the release pressure that safety valve is set is 1.5MPa; The 3rd, energising: switch on power, power supply box is powered to pressure controller and contactor, and now system pressure is 0MPa, contactor energising feed pump, water pump is opened, and the water in storage tank flows into expansion drum by supervisor; The 4th, exhaust: slow circumvolve tee ball valve makes supervisor communicate with one-level arm, increase gradually the outlet pressure of one-level pressure relief valve, first gas enter one-level arm under Water Pressure, and flow through one-level pressure relief valve and flap valve, discharge system by outlet valve, treat that gas drains and close outlet valve, open one by one straight-through valve, get rid of the gas in condensate correcting-distribuing device, treat that gas drains to close straight-through valve and one-level pressure relief valve; The 5th, constant voltage: divide water end (W.E.) to be connected with seepage apparatus one by one condensate correcting-distribuing device, open straight-through valve, regulate the outlet pressure of one-level pressure relief valve to testing demand pressure as 0.5MPa, in the time that control pressurer system reaches upper limits pressure as 1.2MPa, water pump cuts out, and now the consolidation pressure that enters of Seepage Experiment can be constant in 0.5MPa; The 6th, voltage stabilizing: along with Seepage Experiment carries out, discharge reduction in expansion drum, hydraulic pressure reduces gradually, in the time reaching threshold pression as 0.7MPa, water pump is automatically opened until control pressurer system is closed while reaching limits pressure as 1.2MPa, ensures that the inlet pressure of one-level pressure relief valve is stabilized in 0.7MPa-1.2Mpa; The 7th, attention: in the time that this stage pressure Seepage Experiment finishes, close tee ball valve and straight-through valve, cut off the electricity supply, if proceed next stage Seepage Experiment, need to repeat the first to the 6th step, in the time that seepage tests demand pressure is greater than 1.0MPa, need swivel tee ball valve to communicate with secondary arm to being responsible for, by the release pressure of regulation safety valve, the water pump engaging pressure of pressure controller and the outlet pressure of second depressurized valve, guarantee Seepage Experiment safety and stability is carried out.
Embodiment bis-
A kind of adjustable constant-pressure experiment water system, comprises high service system, control pressurer system, decompression constant-voltage system, and high-pressure water delivery device comprises water pump 1, storage tank 2, strainer valve 3 and flap valve 4, described water pump 1, strainer valve 3 and flap valve 4 are serially connected with on supervisor 5 successively, control pressurer system comprises expansion drum 6, safety valve 7, pressure controller 8 and power supply box 9, described expansion drum 6, safety valve 7 and pressure controller 8 are connected on supervisor 5 successively, described power supply box 9 is powered to pressure controller 8, is provided with contactor 10 in it, and described contactor 10 is connected with water pump 1 and pressure controller 8, decompression constant-voltage system comprises straight-through valve 21, one-level pressure relief valve 11, second depressurized valve 12, first class pressure table 13, secondary pressure table 14, flap valve 4, outlet valve 15 and condensate correcting-distribuing device 16, described straight-through valve 21 and one-level pressure relief valve 11, first class pressure table 12, flap valve 4 and outlet valve 15 connect and compose one-level arm 17 successively, described straight-through valve 21 and second depressurized valve 13, secondary pressure table 14, flap valve 4 and outlet valve 15 connect and compose secondary arm 18, described one-level arm 17 is connected with supervisor 5 by tee junction 20 with secondary arm 18, be connected with two condensate correcting-distribuing devices 16 respectively, 16 points of water end (W.E.)s of described condensate correcting-distribuing device are provided with straight-through valve 21, above-mentioned water pump 1 is three-cylinder plunger pump, and its theoretical delivery is 8L/min, and operating pressure is 6MPa, above-mentioned storage tank 2 is organic glass case, and its water storage volume is 200L, and above-mentioned strainer valve 3 and flap valve 4 are made up of brass, above-mentioned supervisor 5 is stainless steel tube, and its inside nominal diameter is DN15, above-mentioned expansion drum 6 is capsule type air-pressure tank, its water storage volume is 24L, operating pressure is 1.6MPa, above-mentioned safety valve 7 is adjustable spring safety valve, is made up of brass, and its release pressure adjustable range is 1.0-2.0MPa, above-mentioned pressure controller 8 is optoelectronic induction pressure switch for water pump, adjustable governor pressure scope is 0-1.6MPa, and above-mentioned power supply box 9 is made up of stainless steel, and above-mentioned contactor 10 is A.C. contactor, above-mentioned one-level pressure relief valve 11 is piston type adjustable compression release valve, made by brass, its output pressure adjustable range is 0.1-0.8MPa, above-mentioned first class pressure table 12 range is 0-1.6MPa, above-mentioned second depressurized valve 13 is piston type adjustable compression release valve, made by stainless steel, its output pressure adjustable range is 1.0-2.5MPa, above-mentioned secondary pressure table 14 range is 0-2.5MPa, above-mentioned flap valve 4 and outlet valve 15 are made up of brass, above-mentioned condensate correcting-distribuing device 16 is to go out formula current divider into five, made by stainless steel, above-mentioned one-level arm 17, secondary arm 18, tee junction 20 and straight-through valve 21 are made up of stainless steel, its inside nominal diameter is DN15.
Operating procedure of the present utility model is: the first, prepare: storage tank is filled to water, check the connection of each pipe fitting, valve and power line, close one-level pressure relief valve and second depressurized valve, close straight-through valve simultaneously, open outlet valve; Second, arrange: according to Seepage Experiment demand, by pressure controller, water pump engaging pressure is set, as carried out two groups of experiments simultaneously, its operating pressure is respectively 0.5MPa and 1.0MPa, it is 1.2MPa that starting mode of pump pressure can be set, and water pump closing presure is 1.6MPa, in the time that system pressure is less than or equal to 1.2MPa, starting mode of pump, in the time that system pressure equals 1.5MPa, water pump cuts out, and the release pressure that safety valve is set is 1.6MPa; The 3rd, energising: switch on power, power supply box is powered to pressure controller and contactor, and now system pressure is 0MPa, contactor energising feed pump, water pump is opened, and the water in storage tank flows into expansion drum by supervisor; The 4th, exhaust: slowly open straight-through valve supervisor is communicated with one-level arm and secondary arm, increase gradually the outlet pressure of one-level pressure relief valve and second depressurized valve, gas enters one-level arm and secondary arm under Water Pressure, flow through one-level pressure relief valve, second depressurized valve, flap valve and condensate correcting-distribuing device, divide water end (W.E.) to discharge system by outlet valve and condensate correcting-distribuing device, treat that gas drains and close straight-through valve, one-level pressure relief valve and second depressurized valve; The 5th, constant voltage: divide water end (W.E.) to be connected with seepage apparatus condensate correcting-distribuing device, open straight-through valve, regulate the outlet pressure of one-level pressure relief valve to testing demand pressure as 0.5MPa, regulate the outlet pressure of second depressurized valve to testing demand pressure as 1.0MPa, in the time that control pressurer system reaches upper limits pressure as 1.5MPa, water pump cuts out, now two groups independently Seepage Experiment enter consolidation pressure can be constant in 0.5MPa and 1.0MPa respectively; The 6th, voltage stabilizing: along with Seepage Experiment carries out, discharge reduction in expansion drum, hydraulic pressure reduces gradually, in the time reaching threshold pression as 1.2MPa, water pump is automatically opened until control pressurer system is closed while reaching limits pressure as 1.5MPa, ensures that the inlet pressure of one-level pressure relief valve and second depressurized valve is stabilized in 1.2MPa-1.5Mpa; The 7th, attention: in the time that this stage pressure Seepage Experiment finishes, close straight-through valve, cut off the electricity supply, if proceed next stage Seepage Experiment, need to repeat the first to the 6th step, as longer in experimental period, must keep power supply unimpeded, avoid because water supply volume causes greatly hydraulic pressure shakiness, ensure Seepage Experiment safe and stable operation.
Claims (2)
1. an adjustable constant-pressure experiment water system, it is characterized in that, comprise high service system, control pressurer system, decompression constant-voltage system, high service system comprises water pump (1), storage tank (2), strainer valve (3) and flap valve (4), described water pump (1), strainer valve (3) and flap valve (4) are serially connected with on supervisor (5) successively, control pressurer system comprises expansion drum (6), safety valve (7), pressure controller (8) and power supply box (9), described expansion drum (6), safety valve (7) and pressure controller (8) are connected on supervisor (5) successively, described power supply box (9) is powered to pressure controller (8), in it, be provided with contactor (10), described contactor (10) is connected with water pump (1) and pressure controller (8), decompression constant-voltage system comprises one-level pressure relief valve (11), first class pressure table (12), second depressurized valve (13), secondary pressure table (14), flap valve (4), outlet valve (15) and condensate correcting-distribuing device (16), described one-level pressure relief valve (11) and first class pressure table (12), flap valve (4) and outlet valve (15) connect and compose one-level arm (17), described second depressurized valve (13) and secondary pressure table (14), flap valve (4) and outlet valve (15) connect and compose secondary arm (18), described one-level arm (17) is connected with supervisor (5) by tee ball valve (19) with secondary arm (18), and be connected with condensate correcting-distribuing device (16) by tee junction (20), described condensate correcting-distribuing device (16) point water end (W.E.) is provided with straight-through valve (21).
2. require described adjustable constant-pressure experiment water system according to right 1, it is characterized in that, described water pump (1) is three-cylinder plunger pump, its theoretical delivery is 8L/min, and operating pressure is 6MPa, and described storage tank (2) is organic glass case, its water storage volume is 100L, described strainer valve (3) and flap valve (4) are made up of brass, and described supervisor (5) is stainless steel tube, and its inside nominal diameter is DN15, described expansion drum (6) is capsule type air-pressure tank, its water storage volume is 24L, operating pressure is 1.6MPa, described safety valve (7) is adjustable spring safety valve, is made up of brass, and its release pressure adjustable range is 1.0-2.0MPa, described pressure controller (8) is optoelectronic induction pressure switch for water pump, adjustable governor pressure scope is 0-1.6MPa, and described power supply box (9) is made up of stainless steel, and described contactor (10) is A.C. contactor, described one-level pressure relief valve (11) is piston type adjustable compression release valve, made by brass, its output pressure adjustable range is 0.1-0.8MPa, described first class pressure table (12) range is 0-1.6MPa, described second depressurized valve (13) is piston type adjustable compression release valve, made by stainless steel, its output pressure adjustable range is 1.0-2.5MPa, described secondary pressure table (14) range is 0-2.5MPa, described outlet valve (5) is made up of brass, described condensate correcting-distribuing device (16) is to go out formula current divider into five, made by stainless steel, described one-level arm (17), secondary arm (18), tee ball valve (19) and tee junction (20) are made up of stainless steel, its inside nominal diameter is DN15.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420087206.8U CN203729381U (en) | 2014-02-22 | 2014-02-22 | Adjustable constant-pressure experimental water supply system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420087206.8U CN203729381U (en) | 2014-02-22 | 2014-02-22 | Adjustable constant-pressure experimental water supply system |
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| CN203729381U true CN203729381U (en) | 2014-07-23 |
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| CN201420087206.8U Expired - Fee Related CN203729381U (en) | 2014-02-22 | 2014-02-22 | Adjustable constant-pressure experimental water supply system |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104234136A (en) * | 2014-09-19 | 2014-12-24 | 新昌德力石化设备有限公司 | Non-negative pressure constant pressure water supply equipment tester |
| CN104990868A (en) * | 2015-05-12 | 2015-10-21 | 上海东方雨虹防水工程有限公司 | Water mixing tester |
| CN111255018A (en) * | 2020-01-22 | 2020-06-09 | 水利部交通运输部国家能源局南京水利科学研究院 | Continuous water supply device capable of realizing stable high water pressure and use method thereof |
| CN111733929A (en) * | 2020-06-29 | 2020-10-02 | 安徽海沃特水务股份有限公司 | Intelligent constant-pressure water supply system |
| CN111809690A (en) * | 2019-04-12 | 2020-10-23 | 宁波方太厨具有限公司 | Automatic pressure-stabilizing water source device for laboratory and water pressure adjusting method thereof |
| CN112709291A (en) * | 2020-12-21 | 2021-04-27 | 中国航空工业集团公司北京航空精密机械研究所 | Two-stage flow regulating and pressure stabilizing system and flow regulating method |
| CN113920828A (en) * | 2021-10-15 | 2022-01-11 | 宁波大学 | Controllable variable-pressure unsteady flow water supply experimental device |
-
2014
- 2014-02-22 CN CN201420087206.8U patent/CN203729381U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104234136A (en) * | 2014-09-19 | 2014-12-24 | 新昌德力石化设备有限公司 | Non-negative pressure constant pressure water supply equipment tester |
| CN104234136B (en) * | 2014-09-19 | 2015-08-19 | 新昌德力石化设备有限公司 | Without negative pressure constant pressure water supply equipment experimental rig |
| CN104990868A (en) * | 2015-05-12 | 2015-10-21 | 上海东方雨虹防水工程有限公司 | Water mixing tester |
| CN111809690A (en) * | 2019-04-12 | 2020-10-23 | 宁波方太厨具有限公司 | Automatic pressure-stabilizing water source device for laboratory and water pressure adjusting method thereof |
| CN111255018A (en) * | 2020-01-22 | 2020-06-09 | 水利部交通运输部国家能源局南京水利科学研究院 | Continuous water supply device capable of realizing stable high water pressure and use method thereof |
| CN111733929A (en) * | 2020-06-29 | 2020-10-02 | 安徽海沃特水务股份有限公司 | Intelligent constant-pressure water supply system |
| CN112709291A (en) * | 2020-12-21 | 2021-04-27 | 中国航空工业集团公司北京航空精密机械研究所 | Two-stage flow regulating and pressure stabilizing system and flow regulating method |
| CN113920828A (en) * | 2021-10-15 | 2022-01-11 | 宁波大学 | Controllable variable-pressure unsteady flow water supply experimental device |
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| 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: 20140723 Termination date: 20160222 |