CN109162911B - TVC jet pump test device - Google Patents
TVC jet pump test device Download PDFInfo
- Publication number
- CN109162911B CN109162911B CN201810976964.8A CN201810976964A CN109162911B CN 109162911 B CN109162911 B CN 109162911B CN 201810976964 A CN201810976964 A CN 201810976964A CN 109162911 B CN109162911 B CN 109162911B
- Authority
- CN
- China
- Prior art keywords
- tvc
- jet pump
- pump
- buffer tank
- collecting tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 41
- 238000002347 injection Methods 0.000 claims abstract description 16
- 239000007924 injection Substances 0.000 claims abstract description 16
- 230000001105 regulatory effect Effects 0.000 claims description 19
- 230000001603 reducing effect Effects 0.000 claims description 8
- 229920006395 saturated elastomer Polymers 0.000 claims description 8
- 239000007921 spray Substances 0.000 claims description 6
- 230000009467 reduction Effects 0.000 claims description 3
- 230000008859 change Effects 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 abstract description 2
- 230000010485 coping Effects 0.000 description 3
- 238000010612 desalination reaction Methods 0.000 description 3
- 239000013535 sea water Substances 0.000 description 3
- 238000004088 simulation Methods 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The utility model relates to a TVC jet pump test device, characterized by includes the TVC jet pump, the buffer tank, the backing pump, flow nozzle, the gas-collecting tube, steam air inlet pipe system, reduce warm water intake pipe system, back pressure regulation air pipe system, steam air inlet pipe system and TVC jet pump, the gas-collecting tube intercommunication, the TVC jet pump discharge pipe divide into two ways, be connected to the buffer tank all the way, be connected to the backing pump all the way, set up a plurality of flow nozzle branch pipes between buffer tank and the gas-collecting tube, reduce warm water intake pipe system is connected to the buffer tank entry, back pressure regulation air pipe system is connected to the TVC jet pump discharge port, be equipped with injection pump pressure transmitter on the TVC jet pump discharge pipe, injection pump temperature sensor sets up buffer tank temperature sensor on the buffer tank, buffer tank pressure transmitter, be provided with gas-collecting tube pressure transmitter on the gas-collecting tube, gas-collecting tube temperature sensor. The TVC jet pump has the advantages of simple structure, convenience in use, low cost and good effect, and can be used for controlling the operation of the steam condition change after the TVC jet pump is installed.
Description
Technical Field
The application relates to a TVC jet pump test device which is mainly applied to a shrinkage performance test of a sea water desalination TVC pump.
Background
TVC pump is the core equipment of low temperature multiple effect sea water desalination system, and its efficiency directly influences the system water ratio. The low-temperature multi-effect sea water desalination is mainly applied to the cogeneration of power plants, and the mixed exhaust steam and high-quality steam of the thermal power plants are used as power media, but the exhaust steam lacks stability. This requires that the TVC pump work properly over a range of vapor pressure conditions, and that the performance of the TVC pump under its various vapor parameters be tested in a simulation to better coordinate production and ensure proper system operation.
Disclosure of Invention
The technical problem that this application solved is to provide a structure succinct, convenient to use, and with low costs, effectual TVC injection pump test device can carry out performance analogue test to the TVC injection pump, can know the performance of TVC injection pump under possible steam parameter to guarantee the actual performance after the TVC injection pump installation and the operation control of coping with steam condition variation.
The technical scheme adopted for solving the technical problems is as follows:
the utility model provides a TVC jet pump test device, characterized by includes the TVC jet pump, the buffer tank, preceding stage pump, flow nozzle, the gas-collecting tube, steam air inlet pipe system, the warm water intake pipe system of subtracting, back pressure regulation air pipe system, steam air inlet pipe system and TVC jet pump, the gas-collecting tube intercommunication, the TVC jet pump discharge pipe divide into two ways, be connected to the buffer tank all the way, be connected to preceding stage pump all the way, set up a plurality of flow nozzle branch pipes between buffer tank and the gas-collecting tube, the warm water intake pipe system of subtracting is connected to the buffer tank entry, back pressure regulation air pipe system is connected to TVC jet pump discharge port, be equipped with pressure transmitter on the TVC jet pump discharge pipe, temperature sensor, set up pressure transmitter on the buffer tank, temperature sensor, be provided with pressure transmitter on the gas-collecting tube, temperature sensor.
The steam inlet pipeline system is sequentially connected with a stop valve, a pressure reducing valve, an air inlet pressure gauge, an air inlet temperature sensor and a flowmeter, and provides power steam under a simulated working condition.
The utility model provides a backing pump provides the required simulated exhaust pressure vacuum environment of TVC injection pump, generally can select water ring vacuum pump, vapor injection pump for experimental facility, also perhaps in order to reduce backing pump load, establishes ties the condenser in backing pump and TVC injection pump connecting line intermediate.
The back pressure regulating air pipeline system is formed by connecting a normally open ball valve in parallel and connecting an air regulating valve with a bypass ball valve in series, the opening of the air regulating valve is used for regulating the opening according to the ratio of the numerical value of a pressure transmitter on a TVC jet pump outlet pipeline to a set value, and the air load is added to regulate the discharge outlet pressure environment of the TVC jet pump.
The utility model provides a temperature reduction water inlet pipeline system comprises ball valve, the manometer that intakes, temperature sensor, the water shower nozzle of intaking, and the water shower nozzle sprays buffer tank entry, makes the tail gas of TVC jet pump reach the saturated state of vapor when the row presses after mixing with the temperature reduction water, and temperature sensor shows the saturated temperature of vapor for pressure transmitter shows numerical value down on the buffer tank promptly on the buffer tank.
The flow nozzle branch pipe is formed by connecting a ball valve and a flow nozzle in series.
Compared with the prior art, the advantage of this application:
1. the tail gas of the motive power vapor discharged by the TVC jet pump is cooled to a saturated state and then is partially separated to be used as the gas to be tested, so that the trouble of specially preparing the test vapor is avoided.
2. The problem that the vacuum environment water vapor flow is not measured by an effective instrument is solved by using a plurality of branches of the flow nozzle.
The working condition simulation is completed before the TVC jet pump is installed and operated, so that the performance of the pump under possible steam parameters can be known in advance, and the actual performance of the TVC jet pump after being installed and the operation control for coping with the steam condition change are ensured.
Drawings
Fig. 1 is a schematic structural view of an embodiment of the present application.
Detailed Description
The present application is further described in detail below by way of examples with reference to the accompanying drawings, which are illustrative of the present application and not limited to the following examples.
Referring to fig. 1, the TVC jet pump test device of this embodiment includes a TVC jet pump 6, a discharge pipe (tail gas in) of the TVC jet pump 6 is divided into two paths, one path is connected to a buffer tank 13, the other path is connected to a backing pump 12, a jet pump pressure transmitter 61 and a jet pump temperature sensor 62 are disposed on the discharge pipe, tail gas leading to the buffer tank 13 is sprayed with water by a temperature reducing water spray nozzle 10 to reduce the temperature to the water vapor saturation temperature under the discharge pressure, and the temperature reducing effect is checked by a buffer tank pressure transmitter 131 and a buffer tank temperature sensor 132 on the buffer tank 13. The tail gas in the buffer tank 13 enters the gas collecting tube 15 through a plurality of ball valves 9 and flow nozzles 14 matched between the buffer tank 13 and the gas collecting tube 15, and then is mixed with power steam of the TVC pump as an evacuated body to form new tail gas. The rest tail gas is pumped away by the backing pump 12 to create the pressure-discharging environment of the TVC jet pump 6, and the capacity of the backing pump 12 is larger than that required by the backing pump required by a normal TVC pump, so that the change of the back pressure of the TVC pump is realized by putting a certain amount of air in, the actual measured back pressure is larger than a set value, the air regulating valve 11 is closed, the actual measured back pressure is smaller than the set value, and the air regulating valve 11 is opened.
The steam inlet pipeline system is sequentially connected with a stop valve 1, a self-operated pressure reducing valve 2, an inlet air pressure gauge 3, an inlet air temperature sensor 4 and a flowmeter 5, and provides power steam under a simulated working condition.
The temperature-reducing water inlet pipeline system is connected in series with the water inlet ball valve 91, the water inlet pressure gauge 7, the water inlet temperature sensor 8 and the water spray head 10, so that the tail gas of the TVC pump is mixed with the temperature-reducing water to reach the saturated state of water vapor when the pressure is discharged, namely, the buffer tank temperature sensor 132 on the buffer tank 13 displays the saturated temperature of the water vapor under the numerical value displayed by the buffer tank pressure transmitter 131 on the buffer tank 13.
A normally open ball valve 161 of the back pressure regulated air line system 16 is connected in parallel with a bypass connected in series by an air regulating valve 11 and a bypass ball valve 162. The opening degree of the air-conditioning valve 11 is adjusted according to the comparison of the value of the injection pump pressure transmitter 61 on the outlet pipe of the TVC injection pump 6 and the set value. The discharge pressure environment of TVC jet pump 6 is regulated by adding an air load.
The vapor flowing through the branch pipe of the flow nozzle 14 is judged to be flowing state according to the value of the buffer tank pressure transmitter 131 on the buffer tank 13 and the value of the gas collecting tube pressure transmitter 151 on the gas collecting tube 15, then the flow of the pumped gas is calculated according to the corresponding formula, and the temperature of the gas collecting tube 15 is measured by the gas collecting tube temperature sensor 152.
The effect of different power medium parameters on TVC pump performance can be tested by varying the set point of the pressure relief valve 2.
The performance of the TVC pump under different working conditions can be tested by setting different pressure discharge environments.
For example, certain project require TVC pump parameters as follows:
the application designs a model with the energy consumption of about 1/40 for test, and the test process is as follows:
the initial state of each valve is a closed state. The back pressure regulating pipeline ball valves 161 and 162 are opened, the back pressure ambient pressure of the TVC is set to 26.2kPaA in control, the back pressure ambient pressure is measured by the exhaust pressure transmitter 62, the backing pump 12 is started, a constant-frequency water ring vacuum pump is used in the test, the air regulating valve 1 is used for regulating the back pressure of the TVC pump to be kept unchanged at 26.2kPaA according to the numerical opening change of the injection pump pressure transmitter 61 and the numerical opening change of the buffer tank temperature sensor 132, after the back pressure of the TVC pump reaches 26.2kPaA, the stop valve 1 on the steam pipeline is opened to enable the TVC pump to operate, the temperature reducing water pipeline water inlet ball valve 91 is opened to cool the tail gas, the temperature reducing water quantity in the test can be accurately regulated without being regulated, the state of the tail gas in the buffer tank 13 is determined according to the numerical values of the buffer tank pressure transmitter 131 and the buffer tank temperature sensor 132 on the buffer tank 13, and when the temperature of the buffer tank pressure transmitter 131 and the buffer tank temperature sensor 132 are sufficient, the numerical value of the buffer tank pressure transmitter 131 is 26.2kPaA and the numerical value of the buffer tank temperature sensor 132 is the saturated state corresponding value of vapor, and the numerical value of the temperature sensor 132 is 66 ℃. After the steam pressure and the temperature reach the test working condition parameters, different flow nozzle combinations are opened, different suction inlet pressures can be obtained, the flow nozzle combinations, the suction inlet pressures and various table values are recorded, a flow-vacuum curve at the back pressure of 26.2kPaA is drawn, the nozzle combinations at the suction pressure of 9.1kPaA are taken for flow conversion to obtain a pumped steam flow value, the water steam flow value is divided by the water flow value, the reading of the steam vortex shedding flowmeter at the moment is the injection coefficient of the pump under the working condition parameters, and whether the pump meets the working condition requirements can be known by comparing the water flow value with the injection coefficient calculated by the water making ratio. The test device can also test the variable steam condition and the variable back pressure working condition.
The application has the following characteristics:
1. the tail gas of the motive power vapor discharged by the TVC pump is cooled to a saturated state and then is partially separated to be used as the gas to be tested, so that the trouble of specially preparing the test vapor is avoided.
2. The problem that the vacuum environment water vapor flow is not measured by an effective instrument is solved by using a plurality of branches of the flow nozzle.
3. The performance of the pump under possible steam parameters can be known in advance by simulating the working condition before the TVC jet pump is installed and operated, so that the actual performance of the TVC pump after the TVC pump is installed and the operation control for coping with the steam condition change can be ensured.
Any simple modification or combination of technical features and technical solutions of the present application should be considered to fall within the protection scope of the present application.
Claims (4)
1. The TVC jet pump test device is characterized by comprising a TVC jet pump, a buffer tank, a front-stage pump, flow nozzles, a gas collecting tube, a steam inlet pipeline system, a temperature reducing water inlet pipeline system and a back pressure regulating air pipeline system, wherein the steam inlet pipeline system is communicated with the TVC jet pump and the gas collecting tube; the steam air inlet pipeline system is sequentially connected with a stop valve, a pressure reducing valve, an air inlet pressure gauge, an air inlet temperature sensor and a flowmeter; the back pressure regulating air pipeline system is formed by connecting a normally open ball valve in parallel and connecting a bypass connected in series by an air regulating valve and a bypass ball valve, and the opening of the air regulating valve is used for regulating data according to the ratio of the numerical value of an injection pump pressure transmitter on a TVC injection pump outlet pipeline to a set value; the water inlet pipeline system for the temperature reduction water consists of a water inlet ball valve, a water inlet pressure gauge, a water inlet temperature sensor and a water spray head, and the water spray head sprays the inlet of the buffer tank.
2. The TVC jet pump test device of claim 1, wherein: and a condenser is connected in series between the connecting pipeline of the backing pump and the TVC jet pump.
3. The TVC jet pump test device of claim 1, wherein: and the tail gas of the TVC jet pump is mixed with the temperature-reduced water to reach a saturated state of water vapor.
4. The TVC jet pump test device of claim 1, wherein: the flow nozzle branch pipe is formed by connecting a ball valve and a flow nozzle in series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810976964.8A CN109162911B (en) | 2018-08-26 | 2018-08-26 | TVC jet pump test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810976964.8A CN109162911B (en) | 2018-08-26 | 2018-08-26 | TVC jet pump test device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109162911A CN109162911A (en) | 2019-01-08 |
| CN109162911B true CN109162911B (en) | 2024-02-23 |
Family
ID=64896858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810976964.8A Active CN109162911B (en) | 2018-08-26 | 2018-08-26 | TVC jet pump test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109162911B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111594432B (en) * | 2020-06-28 | 2021-03-02 | 北京五隆兴科技发展有限公司 | Device and method for testing performance of jet pump |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203683160U (en) * | 2013-12-31 | 2014-07-02 | 一重集团大连设计研究院有限公司 | Multistage injection pump mixed flow energy-saving low temperature multi-effect sea water desalination large-scale device |
| CN106395950A (en) * | 2016-10-31 | 2017-02-15 | 国家海洋局天津海水淡化与综合利用研究所 | Sea water desalination method adopting low-temperature multi-effect distillation for producing fresh water through efficient use of heat energy |
| CN106525434A (en) * | 2016-09-09 | 2017-03-22 | 西安航天动力试验技术研究所 | Injecting equipment for direct connection test of novel stamping engine and environment simulation system |
| CN208816306U (en) * | 2018-08-26 | 2019-05-03 | 浙江杭真能源科技股份有限公司 | TVC sprays pump test device |
-
2018
- 2018-08-26 CN CN201810976964.8A patent/CN109162911B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203683160U (en) * | 2013-12-31 | 2014-07-02 | 一重集团大连设计研究院有限公司 | Multistage injection pump mixed flow energy-saving low temperature multi-effect sea water desalination large-scale device |
| CN106525434A (en) * | 2016-09-09 | 2017-03-22 | 西安航天动力试验技术研究所 | Injecting equipment for direct connection test of novel stamping engine and environment simulation system |
| CN106395950A (en) * | 2016-10-31 | 2017-02-15 | 国家海洋局天津海水淡化与综合利用研究所 | Sea water desalination method adopting low-temperature multi-effect distillation for producing fresh water through efficient use of heat energy |
| CN208816306U (en) * | 2018-08-26 | 2019-05-03 | 浙江杭真能源科技股份有限公司 | TVC sprays pump test device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109162911A (en) | 2019-01-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107013450B (en) | A kind of energy-saving compressor method for testing performance and device | |
| CN109162911B (en) | TVC jet pump test device | |
| CN212340659U (en) | Inter-cooling constant temperature device for engine test | |
| CN105115720A (en) | Test stand used for testing performance of double turbochargers and provided with high-pressure gas shunt device | |
| CN208669593U (en) | A kind of wind-tunnel vacuumizes unit | |
| CN204693042U (en) | The high-pressure natural gas depressurized system that a kind of heat supply is not delayed | |
| CN110274766A (en) | A kind of internal combustion engine altitude environment simulation system and analogy method | |
| CN204715464U (en) | Intelligent constant-voltage water management system | |
| CN107227981B (en) | System and method for cooperatively controlling exhaust back pressure of steam turbine by utilizing LNG cold energy | |
| CN113336289A (en) | Water-heat-electricity cogeneration system with wide-load operation of power plant and operation method | |
| CN209800272U (en) | Backflow adjusting device suitable for liquid ring pump of thermal power plant | |
| CN214916177U (en) | Humidifying device of low-pressure damp-heat test box | |
| CN204829260U (en) | LNG that can accurately measure adds mechanism of qi | |
| CN205037807U (en) | Utilize steam heat transfer system of steam ejector exhaust steam recovery | |
| CN201546685U (en) | Production device of standardized gas well | |
| CN111206967B (en) | Steam turbine low-pressure cylinder exhaust enthalpy measurement system and method | |
| CN208654667U (en) | Two-way Cycle air-flow temp and humidity regulator | |
| CN203587314U (en) | Vacuum device with heat exchange function | |
| CN208816306U (en) | TVC sprays pump test device | |
| CN203732139U (en) | Multi-vessel parallel-connection pVTt-method gas flow-rate detection device | |
| CN2506848Y (en) | Compressed natural gas pressure regulator | |
| CN207024669U (en) | A kind of Top of Vacuum Tower steam vacuum extractor | |
| CN217841754U (en) | Double-flow low-pressure cylinder water spraying temperature reduction system of steam turbine and steam turbine | |
| CN208845272U (en) | A kind of spraying humidification system for combustion engine air inlet | |
| CN208397667U (en) | A kind of lubricating oil station applied to bulb-type hydraulic generating set jacked up with high pressure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |