CN110966174A - Power test system of pump - Google Patents
Power test system of pump Download PDFInfo
- Publication number
- CN110966174A CN110966174A CN201911134459.XA CN201911134459A CN110966174A CN 110966174 A CN110966174 A CN 110966174A CN 201911134459 A CN201911134459 A CN 201911134459A CN 110966174 A CN110966174 A CN 110966174A
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- pump
- water
- test
- cavity
- water tank
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B51/00—Testing machines, pumps, or pumping installations
Abstract
The invention relates to a power test system of a pump, which comprises a vacuum pump, a test pump, a pressure container, a first water pump, a second water pump, a processing system, a first pressure sensor, a second pressure sensor, weighing equipment and a water tank, wherein the vacuum pump is connected with the test pump through a pipeline; the weighing equipment is used for weighing the water pumped by the second water pump and obtaining weight data. The invention adopts a method of closed-loop controlling the temperature of the water tank by the processor, the temperature control effect is stable, and the control precision is high by 1 ℃; the method that liquid in the water tank is heated in advance and then enters the pressure container is adopted, so that the temperature disturbance of the liquid temperature to the test pump during the test is solved, and the direct electric leakage risk is eliminated; the processing system is adopted to test the measuring points of the whole system and control the running of the testing system, so that the intelligent control of the system is improved, the running reliability of the system is enhanced, and the method is suitable for long-term test of the testing pump.
Description
Technical Field
The invention relates to the technical field of hydraulic/pneumatic sealing, in particular to a power test system of a pump.
Background
The pump is a fluid pumping device, wherein the roots pump is one of core components of the fluid processing device, and the pump is mainly used for pumping water vapor evaporated at low pressure, compressing and boosting the water vapor and then condensing the water vapor, thereby achieving the purposes of increasing the water vapor through pressurization and recovering latent heat of vaporization of condensed water.
The existing tester adopts a full stainless steel system, medium liquid adding adopts the previous liquid adding in each test, system water vapor is generated by electric heating, and the test bench is controlled to be a full-manual adjusting mode, although the test bench can meet the use requirements after the tester is designed, the following defects still appear in the use process: 1. the difficulty of medium temperature control is high; 2. after long-term operation, the medium is difficult to replenish liquid, and the new liquid obviously disturbs the working condition of the system; 3. electrical heating presents a risk of electrical leakage; 4. the efficiency of the liquid storage type heat exchange structure is low; 5. the hot melting ratio is large, and the heating time of the system is long; 6. the full manual mode tester cannot be applied to long test.
Disclosure of Invention
In order to achieve the object of the invention: in order to solve the problems in the use process of the existing tester and optimize the system structure, only a tester which can realize the water vapor generation, latent heat of vaporization recovery and cycle running performance test of the roots pump under the negative pressure condition can be redesigned. The tester is used for meeting the test requirements of test pieces, meeting the urgent need of national defense, solving the using defects of the existing tester and filling a gap for China.
The technical scheme of the invention is as follows: a power test system of a pump comprises a vacuum pump, a test pump, a pressure container, a first water pump, a second water pump, a processing system, a first pressure sensor, a second pressure sensor, weighing equipment and a water tank; the weighing equipment is used for weighing the water pumped by the second water pump and obtaining weight data;
the inside of the pressure container is divided into an evaporation cavity and a condensation cavity which are mutually independent, the inlet of the test pump is communicated with the evaporation cavity, the outlet of the test pump is communicated with the condensation cavity, the inlet of the test pump is provided with a second pressure sensor, and the outlet of the test pump is provided with a first pressure sensor; the vacuum pump is simultaneously communicated with the evaporation cavity and the condensation cavity; the evaporation cavity is communicated with a first water pump, accumulated water in the evaporation cavity is pumped to a water tank through the first water pump, the condensation cavity is communicated with a second water pump, condensed water in the condensation cavity is pumped to weighing equipment through the second water pump, and a water outlet of the water tank is communicated with the evaporation cavity through a control valve; the processing system controls the vacuum pump, the test pump, the first water pump and the second water pump to work, and the first pressure sensor, the second pressure sensor and the weighing device send data to the processing system.
Further, the water circulation heating device further comprises a heater, and the heater is used for circularly heating the water in the water tank. Preferably the heater is controlled by the processing system.
Furthermore, a water pump is arranged between the water tank and the evaporation cavity.
Further, the weighing equipment still communicates with the water tank, can send the liquid after weighing to the water tank.
Furthermore, in the pressure container, the evaporation cavity is an inner cavity, and the condensation cavity is an outer cavity.
Furthermore, in the pressure container, the evaporation cavity is an upper cavity, and the condensation cavity is a lower cavity.
Further, the test pump is a roots pump.
The invention has the beneficial effects that: the invention adopts a method of closed-loop controlling the temperature of the water tank by the processor, the temperature control effect is stable, and the control precision is high by 1 ℃; the method that liquid in the water tank is heated in advance and then enters the pressure container is adopted, so that the temperature disturbance of the liquid temperature to the test pump during the test is solved, and the direct electric leakage risk is eliminated; the processing system is adopted to test the measuring points of the whole system and control the running of the testing system, so that the intelligent control of the system is improved, the running reliability of the system is enhanced, and the method is suitable for long-term test of the testing pump.
Drawings
FIG. 1 is a schematic diagram of the present invention;
in the figure: 1-a vacuum pump; 2-test pump; 3-an evaporation cavity; 4-a condensation chamber; 5-a first water pump; 6-a second water pump; 7-a processing system; 8-a weighing device; 9-a water tank; 10-a heater; 11-a first pressure sensor; 12-second pressure sensor.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.
Example one
As shown in fig. 1, a power testing system of a roots pump comprises a vacuum pump, a testing pump, a pressure container, a first water pump, a second water pump, a processing system, a first pressure sensor, a second pressure sensor, a weighing device and a water tank; the weighing equipment is used for weighing the water pumped by the second water pump and obtaining weight data;
the inside of the pressure container is divided into an evaporation cavity and a condensation cavity which are mutually independent, the inlet of the test pump is communicated with the evaporation cavity, the outlet of the test pump is communicated with the condensation cavity, the inlet of the test pump is provided with a second pressure sensor, and the outlet of the test pump is provided with a first pressure sensor; the vacuum pump is simultaneously communicated with the evaporation cavity and the condensation cavity; the evaporation cavity is communicated with a first water pump, accumulated water in the evaporation cavity is pumped to a water tank through the first water pump, the condensation cavity is communicated with a second water pump, condensed water in the condensation cavity is pumped to weighing equipment through the second water pump, and a water outlet of the water tank is communicated with the evaporation cavity through a control valve; the processing system controls the vacuum pump, the test pump, the first water pump and the second water pump to work, and the first pressure sensor, the second pressure sensor and the weighing device send data to the processing system.
And a water pump is also arranged between the water tank and the evaporation cavity.
The weighing equipment is also communicated with the water tank and can deliver the weighed liquid into the water tank.
Furthermore, in the pressure container, the evaporation cavity is an inner cavity, and the condensation cavity is an outer cavity.
Example two
As shown in fig. 1, a power test system of a pump includes a vacuum pump, a test pump, a pressure vessel, a first suction pump, a second suction pump, a processing system, a first pressure sensor, a second pressure sensor, a weighing device, and a water tank; the weighing equipment is used for weighing the water pumped by the second water pump and obtaining weight data;
the inside of the pressure container is divided into an evaporation cavity and a condensation cavity which are mutually independent, the inlet of the test pump is communicated with the evaporation cavity, the outlet of the test pump is communicated with the condensation cavity, the inlet of the test pump is provided with a second pressure sensor, and the outlet of the test pump is provided with a first pressure sensor; the vacuum pump is simultaneously communicated with the evaporation cavity and the condensation cavity; the evaporation cavity is communicated with a first water pump, accumulated water in the evaporation cavity is pumped to a water tank through the first water pump, the condensation cavity is communicated with a second water pump, condensed water in the condensation cavity is pumped to weighing equipment through the second water pump, and a water outlet of the water tank is communicated with the evaporation cavity through a control valve; the processing system controls the vacuum pump, the test pump, the first water pump and the second water pump to work, and the first pressure sensor, the second pressure sensor and the weighing device send data to the processing system.
The water tank is characterized by further comprising a heater, wherein the heater is used for circularly heating the water in the water tank. Preferably the heater is controlled by the processing system.
And a water pump is also arranged between the water tank and the evaporation cavity.
The weighing equipment is also communicated with the water tank and can deliver the weighed liquid into the water tank.
In the pressure container, the evaporation cavity is an inner cavity, and the condensation cavity is an outer cavity.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments illustrated herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (8)
1. A power testing system for a pump, characterized by: the device comprises a vacuum pump, a test pump, a pressure container, a first water pump, a second water pump, a processing system, a first pressure sensor, a second pressure sensor, weighing equipment and a water tank; the weighing equipment is used for weighing the water pumped by the second water pump and obtaining weight data;
the inside of the pressure container is divided into an evaporation cavity and a condensation cavity which are mutually independent, the inlet of the test pump is communicated with the evaporation cavity, the outlet of the test pump is communicated with the condensation cavity, the inlet of the test pump is provided with a second pressure sensor, and the outlet of the test pump is provided with a first pressure sensor; the vacuum pump is simultaneously communicated with the evaporation cavity and the condensation cavity; the evaporation cavity is communicated with a first water pump, accumulated water in the evaporation cavity is pumped to a water tank through the first water pump, the condensation cavity is communicated with a second water pump, condensed water in the condensation cavity is pumped to weighing equipment through the second water pump, and a water outlet of the water tank is communicated with the evaporation cavity through a control valve; the processing system controls the vacuum pump, the test pump, the first water pump and the second water pump to work, and the first pressure sensor, the second pressure sensor and the weighing device send data to the processing system.
2. A pump power test system as claimed in claim 1, wherein: the water tank is characterized by further comprising a heater, wherein the heater is used for circularly heating the water in the water tank.
3. A pump power test system as claimed in claim 1, wherein: and a water pump is also arranged between the water tank and the evaporation cavity.
4. A pump power test system as claimed in claim 1, wherein: the weighing equipment is also communicated with the water tank and can deliver the weighed liquid into the water tank.
5. A pump power test system as claimed in claim 1, wherein: in the pressure container, the evaporation cavity is an inner cavity, and the condensation cavity is an outer cavity.
6. A pump power test system as claimed in claim 1, wherein: in the pressure container, the evaporation cavity is an upper cavity, and the condensation cavity is a lower cavity.
7. A pump power test system as claimed in claim 1, wherein: the test pump was a roots pump.
8. A pump power test system as claimed in claim 2, wherein: the heater is controlled by the processing system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911134459.XA CN110966174B (en) | 2019-11-19 | 2019-11-19 | Power test system of pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911134459.XA CN110966174B (en) | 2019-11-19 | 2019-11-19 | Power test system of pump |
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| Publication Number | Publication Date |
|---|---|
| CN110966174A true CN110966174A (en) | 2020-04-07 |
| CN110966174B CN110966174B (en) | 2021-09-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911134459.XA Active CN110966174B (en) | 2019-11-19 | 2019-11-19 | Power test system of pump |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0432799A (en) * | 1990-05-30 | 1992-02-04 | Hitachi Ltd | Nuclear reactor operation area limiting device |
| JPH04238225A (en) * | 1991-01-23 | 1992-08-26 | Hitachi Ltd | Plant diagnostic device, method thereof, plant and circulation facilities |
| CN204514743U (en) * | 2015-03-17 | 2015-07-29 | 上海易尔思节能***有限公司 | A kind of latent heat of vaporization determinator of water |
| CN105179222A (en) * | 2015-08-13 | 2015-12-23 | 上海电气凯士比核电泵阀有限公司 | Loop testing system and method thereof |
| CN108447573A (en) * | 2018-04-16 | 2018-08-24 | 西安交通大学 | A kind of nuclear reactor fuel rod fusing visual experimental apparatus and method |
-
2019
- 2019-11-19 CN CN201911134459.XA patent/CN110966174B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0432799A (en) * | 1990-05-30 | 1992-02-04 | Hitachi Ltd | Nuclear reactor operation area limiting device |
| JPH04238225A (en) * | 1991-01-23 | 1992-08-26 | Hitachi Ltd | Plant diagnostic device, method thereof, plant and circulation facilities |
| CN204514743U (en) * | 2015-03-17 | 2015-07-29 | 上海易尔思节能***有限公司 | A kind of latent heat of vaporization determinator of water |
| CN105179222A (en) * | 2015-08-13 | 2015-12-23 | 上海电气凯士比核电泵阀有限公司 | Loop testing system and method thereof |
| CN108447573A (en) * | 2018-04-16 | 2018-08-24 | 西安交通大学 | A kind of nuclear reactor fuel rod fusing visual experimental apparatus and method |
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| Publication number | Publication date |
|---|---|
| CN110966174B (en) | 2021-09-14 |
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