CN114383838B - High-temperature steam test system - Google Patents
High-temperature steam test system Download PDFInfo
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- CN114383838B CN114383838B CN202210077553.1A CN202210077553A CN114383838B CN 114383838 B CN114383838 B CN 114383838B CN 202210077553 A CN202210077553 A CN 202210077553A CN 114383838 B CN114383838 B CN 114383838B
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- 238000012360 testing method Methods 0.000 title claims abstract description 40
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 230000001105 regulatory effect Effects 0.000 claims description 5
- 238000005086 pumping Methods 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 241000669618 Nothes Species 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 5
- 238000013461 design Methods 0.000 description 4
- 238000011084 recovery Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/003—Machine valves
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
The invention discloses a high-temperature steam test system, which comprises a high-temperature steam generator module and flow control module integrated body and a high-temperature steam treatment module and vacuum system module integrated body, wherein the high-temperature steam generator module provides high-temperature steam with the temperature of more than 100 ℃ for a test piece, the flow control module adjusts the temperature and the pressure of steam output by the high-temperature steam generator module, the flow regulation precision is no more than 0.1L/s, an outlet of the test piece is communicated with the vacuum system module, and the vacuum system module pumps at a speed of: 100m 3 /h, limiting pressure: 0.1-0.5mbar; the high-temperature steam treatment module cools high-temperature steam by adopting an exhaust water tank, the temperature of exhaust gas is less than or equal to 40 ℃, the high-temperature steam treatment module can meet the requirement of working test of high-temperature steam products by designing a special test system, is used for high-temperature steam as a medium, has working pressure of 0-0.4 MPa, has working environment of absolute pressure of 20KPa, has working flow of 1-4L/s, simulates flying height of 20KM, and has continuously adjustable working pressure in the whole process.
Description
Technical Field
The invention relates to the technical field of high-temperature steam test equipment, in particular to a high-temperature steam test system.
Background
In the flying process of the aerospace equipment, the engine flies at a high speed, a large amount of heat is generated near the spray pipe, the performance of the product near the spray pipe is affected, the specific heat capacity of water is large, part of heat is taken away through water evaporation, a valve for discharging steam is designed, a set of special test equipment is required to be established for the design and test of the high-temperature exhaust valve, a working medium of the product is high-temperature steam, a product outlet is in a vacuum state, a real use state of the product needs to be reduced, the flying height state needs to be simulated after the valve, and a test system and a test method for the high-temperature steam product aiming at the medium are not available at present. And simulating the actual working state of the product. The system can ensure that steam and vacuum exist simultaneously under constant flow rate to reach balance.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a high-temperature steam test system which can simulate the real working state of a test piece, and can ensure that steam and vacuum degree exist simultaneously and reach balance.
The technical scheme adopted by the invention is that the high-temperature steam test system comprises a high-temperature steam generator module and flow control module integrated body and a high-temperature steam treatment module and vacuum system module integrated body, wherein the high-temperature steam generator module provides high-temperature steam with the temperature of more than 100 ℃ for a test piece, the flow control module adjusts the temperature and the pressure of steam output by the high-temperature steam generator module, the flow regulation precision is no more than 0.1L/s, an outlet of the test piece is communicated with the vacuum system module, and the pumping speed of the vacuum system module is as high as 0.1L/s: 100m 3 /h, limiting pressure: 0.1-0.5mbar; the high-temperature steam treatment module adopts an exhaust water tank to cool high-temperature steam, the temperature of exhaust gas is less than or equal to 40 ℃, and the high-temperature steam generator module is also provided with a safety valve, an electric regulating valve, a blow-down valve, a stop valve and a first temperature-pressure sensor; the flow control module is also provided with a bypass electromagnetic valve for balancing the matching property of the constant flow vacuum pump and the variable flow product exhaust.
More preferably, the vacuum system module adopts a 200L stainless steel vacuum tank, and the connection flow of the vacuum tank is 100m 3 Vacuum pump/h.
More preferably, the internal coil pipe of the exhaust water tank is designed, and a temperature sensor is arranged on the exhaust water tank.
More preferably, the inlet end of the test piece is provided with a second temperature and pressure sensor
The beneficial effects of the invention are as follows: the special test system is designed, so that the test system can meet the requirement of working test of high-temperature steam products, is used for high-temperature steam as a medium, has the working pressure of 0-0.4 MPa, has the working environment of absolute pressure of 20KPa and the working flow of 1-4L/s, simulates the flying height of 20KM, and has the working pressure which is continuously adjustable in the whole process.
Drawings
FIG. 1 is a schematic diagram of a high temperature steam test system according to the present invention.
The marks in the figure: the device comprises a 1-safety valve, a 2-electric regulating valve, a 3-steam generator, a 4-blow-down valve, a 5-stop valve, a 6-bypass electromagnetic valve, a 7-first temperature and pressure sensor, an 8-electromagnetic valve, a 9-electric pressure reducing valve, a 10-flowmeter, a 11-second temperature and pressure sensor, a 12-test piece, a 13-third temperature and pressure sensor, a 14-vacuum tank, a 15-electric ball valve, a 16-vacuum pump system and a 17-exhaust water tank.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein can be arranged and designed in a wide variety of different configurations.
According to the product characteristics of the exhaust valve of the test piece, a special debugging test system is built, and the test requirements are met: the high-temperature steam flow is 4L/s, the working environment is absolute pressure 20KPa, and a test scheme is provided. The device mainly comprises four parts: a high temperature steam generator section; the product needs to be subjected to a high-temperature steam test at 100 ℃, so that the high-temperature steam of a test medium is a key part. Special equipment capable of providing high-temperature steam (the water content is less than 2%) is selected. The steam generator part comprises a steam generator 3, a safety valve 1, an electric regulating valve 2, a blow-down valve 4, a stop valve 5 and a first temperature and pressure sensor 7, wherein the steam generator 3 generates high-temperature steam, the temperature and pressure are tested by the first temperature and pressure sensor 7, and after the use pressure is reached, the stable-pressure high-temperature steam is output by a rear-end electric pressure reducing valve 9, and the specific requirements are that:
(1) Can provide high-temperature steam (the water content is less than 2%) with the temperature of more than 100 ℃, and simultaneously requires visible and adjustable temperature;
(2) The steam flow rate can reach not less than 10kg/h;
(3) Adding deionized water once, and continuously running for less than or equal to 2 hours;
(4) The high-temperature steam pressure is not lower than 0.3MPa;
(5) The equipment is provided with an overpressure alarm function, so that overpressure can be safely discharged;
(6) The equipment is reliable and convenient to move.
A flow rate control section; comprises a solenoid valve 8, an electric pressure reducing valve 9, a flowmeter 10 and a second temperature and pressure sensor 11; after the steam generator 3 reaches the required temperature and pressure, the electric pressure reducing valve 9 is regulated, the second temperature and pressure sensor 11 at the rear end is observed until a test piece is opened, high-temperature steam is discharged outwards, the indication of the second temperature and pressure sensor 11 is recorded, because the product test medium is 100 ℃ high-temperature steam, each part of a pipeline can reach higher temperature in the test process, at the moment, because of safety consideration, manual flow regulation cannot be carried out, and the flow control in the test process is required to have remote regulation capability, and the specific requirements are that:
(1) The flow rate regulation precision is not less than 0.1kg/h;
(2) Good heat preservation measures are adopted from the steam generator to the product connection whole pipeline;
(3) A product inlet, which is positioned closer to the product, for testing the pressure and temperature of the product inlet;
(4) The emergency stop function is provided.
A product outlet vacuum degree control part; comprises a vacuum tank 14, a third temperature and pressure sensor 13, an electric ball valve 15 and a vacuum pump system 16; before the test, the vacuum pump reaches 20KPa pressure, after the product is opened, the electric ball valve 15 and the vacuum pump system 16 are started, the vacuum pump pressure at the position is 20KPa, the product outlet pressure requirement is met, the product outlet is arranged at the position of the high-temperature steam treatment tank, a 200L stainless steel vacuum tank 14 is adopted, and the connection flow of the vacuum tank 14 reaches 100m 3 And (3) synchronously starting the vacuum pump when the product works, and balancing the matching property of the constant flow vacuum pump and variable flow product exhaust by adopting a bypass air inlet or control switch mode of a bypass electromagnetic valve 6 so as to achieve the technical indexes of 5 KPa-20 KPa of the product outlet required by design. According to the design flow rate of the product of 1.3L/s and the full-open flow rate of 4L/s, the pressure of 0.102MPa and the temperature of 100 ℃; the outlet pressure is 20KPa, the outlet temperature is 100 ℃, and the discharge flow rate is calculated according to an ideal formula:
wherein, P1 is the exhaust pressure, V1 is the exhaust flow, T1 is the high temperature steam temperature, P2 is the vacuum chamber pressure, V2 is the vacuum exhaust flow, T2 is the temperature in the vacuum chamber. As a result, when the flow rate of the product was 1.3L/s, the discharge flow rate was 6.63L/s (23 m 3 And/h), calculating according to the volume 200L of the vacuum tank 14, under the condition that the vacuum pump is not started, (5-20) KPa, the boosting time is about 22s, and simultaneously, controlling the switch of the electric ball valve before the vacuum pump, so that the pressure can be kept balanced at (5-20) KPa; at a product flow rate of 4L/s, the discharge flow rate was 20.4L/s (73 m 3 And/h), according to 200L volume of the vacuum 14, (5-20) KPa under the condition of not starting the vacuum pump, the pressure rising time is about 7.3s, and meanwhile, starting the vacuum pump, according to the working efficiency of the vacuum pump, the pressure of the vacuum tank 14 can be kept balanced at (5-20) KPa. The specific requirements are as follows:
(1) Pumping speed: 100m 3 /h；
(2) Limit pressure: 0.1-0.5mbar;
(3) Buffer vacuum tank: 200L, and can resist temperature not less than 100 ℃.
The high-temperature steam treatment part comprises an exhaust water tank 17, a temperature sensor is arranged on the exhaust water tank 17, the temperature is monitored in real time, coil pipe design is arranged in the water tank, high-temperature steam is effectively condensed into liquid and then discharged, the temperature of test medium high-temperature steam is still higher after passing through a product, and the high-temperature steam is prevented from being directly discharged into the air from the safety aspect, so that the system has high-temperature steam treatment capacity and is discharged in a water cooling mode. The specific requirements are as follows:
(1) After the steam passes through the treatment equipment, the temperature of the exhaust gas is less than or equal to 40 ℃;
(2) The steam treatment capacity of the recovery equipment is not less than 15kg/h;
(3) And (5) monitoring the temperature of the recovery equipment in real time.
The high-temperature steam generator part and the flow control part are integrated into a whole, so that the high-temperature steam generator is convenient to move; the high-temperature steam treatment part and the vacuum system part are integrated into a whole, so that the high-temperature steam treatment part and the vacuum system part are convenient to move, the whole maximum height is less than 1.5 m, and the maximum width is less than 1.5 m.
The foregoing has shown and described the basic principles and main features of the present invention and the advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (4)
1. High temperature discharge valve steam test system, its characterized in that: the high-temperature steam generator module provides high-temperature steam with the temperature higher than 100 ℃ for a high-temperature exhaust valve, the flow control module adjusts the temperature and the pressure of the steam output by the high-temperature steam generator module, the flow adjustment accuracy is no more than 0.1L/s, the inlet of the high-temperature exhaust valve is communicated with the high-temperature steam generator module, the outlet of the high-temperature exhaust valve is communicated with the vacuum system module, the vacuum system module is connected with the high-temperature steam treatment module, and the pumping speed of the vacuum system module is higher than 0.1L/s: 100m is m 3 /h, limiting pressure: 0.1-0.5mbar; the high-temperature steam treatment module adopts an exhaust water tank to cool high-temperature steam, the temperature of exhaust gas is less than or equal to 40 ℃, and the high-temperature steam generator module comprises a steam generator, a safety valve, an electric regulating valve, a blow-down valve, a stop valve and a first temperature pressure sensor; the safety valve, the electric control valve and the blow-down valve are connected with the steam generator, the steam generator is connected with the flow control module through the stop valve, the steam generator generates high-temperature steam, the temperature and the pressure are tested through the first temperature and pressure sensor, and the flow control module is further provided with a bypass electromagnetic valve for balancing the matching property of the constant flow vacuum system module and the high-temperature exhaust valve.
2. The high temperature exhaust valve steam test system according to claim 1, wherein: the vacuum system module adopts 200L of noThe stainless steel vacuum tank is connected with the flow rate of 100m 3 Vacuum pump/h.
3. The high temperature exhaust valve steam test system according to claim 1, wherein: the exhaust water tank is characterized in that a coil pipe in the exhaust water tank is designed, and a temperature sensor is arranged on the exhaust water tank.
4. The high temperature exhaust valve steam test system according to claim 1, wherein: the inlet end of the high-temperature exhaust valve is provided with a second temperature and pressure sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210077553.1A CN114383838B (en) | 2022-01-24 | 2022-01-24 | High-temperature steam test system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210077553.1A CN114383838B (en) | 2022-01-24 | 2022-01-24 | High-temperature steam test system |
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| Publication Number | Publication Date |
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| CN114383838A CN114383838A (en) | 2022-04-22 |
| CN114383838B true CN114383838B (en) | 2024-04-09 |
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| CN202210077553.1A Active CN114383838B (en) | 2022-01-24 | 2022-01-24 | High-temperature steam test system |
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| CN115326380A (en) * | 2022-08-09 | 2022-11-11 | 中广核工程有限公司 | Steam thermal state test device for valve |
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2022
- 2022-01-24 CN CN202210077553.1A patent/CN114383838B/en active Active
Patent Citations (9)
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|---|---|---|---|---|
| CN102252854A (en) * | 2011-04-27 | 2011-11-23 | 北京航空航天大学 | Air intake/exhaust pressure control method in high altitude simulation system |
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| KR101457153B1 (en) * | 2014-05-23 | 2014-11-04 | 정상열 | Auto vacuum steam boiler able forced cycle of condensate water and maintain of vacuum and supplement of water |
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