CN114383838A - High-temperature steam test system - Google Patents
High-temperature steam test system Download PDFInfo
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- CN114383838A CN114383838A CN202210077553.1A CN202210077553A CN114383838A CN 114383838 A CN114383838 A CN 114383838A CN 202210077553 A CN202210077553 A CN 202210077553A CN 114383838 A CN114383838 A CN 114383838A
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- 238000012360 testing method Methods 0.000 title claims abstract description 44
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 16
- 238000012545 processing Methods 0.000 claims abstract description 4
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 5
- 238000005086 pumping Methods 0.000 abstract description 2
- 238000013461 design Methods 0.000 description 3
- 238000011084 recovery Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering 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
- 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
- 238000004088 simulation Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
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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
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- 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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- 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 processing 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 the steam output by the high-temperature steam generator module, the flow adjusting precision is 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 follows: 100m3H, limiting pressure: 0.1-0.5 mbar; 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 ℃, a special test system is designed, the high-temperature steam product can be used for work tests of high-temperature steam products, the medium is high-temperature steam, the working pressure is 0-0.4 MPa, the working environment is absolute pressure 20KPa, the working flow is 1-4L/s, the simulated flight height is 20KM, and the working pressure is continuously adjustable 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 process of flying, the aerospace device flies at a high speed, an engine burns, a large amount of heat can be generated near a spray pipe, the product performance near the spray pipe is influenced, the specific heat capacity of water is large, partial heat is taken away through water evaporation, a valve for relevant discharged steam is designed, a set of special test equipment needs to be established for the design and test of a high-temperature exhaust valve, a working medium of the product is high-temperature steam, a product outlet is in a vacuum state, the real use state of the product needs to be restored, the flying height state needs to be simulated after the valve, and at present, a test system and a test method aiming at the product with the medium being high-temperature steam do not exist. And simulating the real working state of the product. The system can ensure that steam and vacuum exist simultaneously under a constant flow rate, and balance is achieved.
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, ensure that steam and vacuum exist simultaneously and achieve 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 processing 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 pressure of the steam output by the high-temperature steam generator module, the flow regulation precision is not 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 follows: 100m3H, limiting pressure: 0.1-0.5 mbar; 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-off valve, a stop valve and a first temperature and pressure sensor; the flow control module is also provided with a bypass electromagnetic valve for balancing the matching of the constant-flow vacuum pump and the exhaust of the variable-flow product.
More preferably, the vacuum system module adopts a 200L stainless steel vacuum tank, and the vacuum is performedTank connection flow of 100m3Vacuum pump,/h.
More preferably, the exhaust water tank is provided with a temperature sensor.
More preferably, the inlet end of the test piece is provided with a second temperature and pressure sensor
The invention has the beneficial effects that: by designing a special test system, the working test of high-temperature steam products can be met, the high-temperature steam simulation test system is used for the conditions that the medium is high-temperature steam, the working pressure is 0-0.4 MPa, the working environment is absolute pressure 20KPa, the working flow is 1-4L/s, the simulated flight height is 20KM, and the working pressure is continuously adjustable in the whole process.
Drawings
FIG. 1 is a schematic diagram of a high temperature steam test system of the present invention.
The labels in the figure are: 1-safety valve, 2-electric regulating valve, 3-steam generator, 4-blow-down valve, 5-stop valve, 6-bypass electromagnetic valve, 7-first temperature and pressure sensor, 8-electromagnetic valve, 9-electric reducing valve, 10-flowmeter, 11-second temperature and pressure sensor, 12-test piece, 13-third temperature and pressure sensor, 14-vacuum tank, 15-electric ball valve, 16-vacuum pump system and 17-exhaust water tank.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of 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 constructed, and the requirement for one test is met: the flow rate of the high-temperature steam is 4L/s, the working environment is 20KPa, and a test scheme is provided. The device mainly comprises four parts: a high temperature steam generator portion; the product needs to be subjected to a high-temperature steam test at 100 ℃, so the high-temperature steam of the 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 includes steam generator 3, relief valve 1, electrical control valve 2, blowoff valve 4, stop valve 5 and first warm pressure sensor 7, and steam generator 3 produces high-temperature steam, tests temperature and pressure through first warm pressure sensor 7, after reaching the service pressure, through the 9 output stable pressure high-temperature steam of rear end electric pressure reducing valve, the concrete requirement:
(1) high-temperature steam (the water content is less than 2%) with the temperature of more than 100 ℃ can be provided, and the temperature is required to be visible and adjustable;
(2) the steam flow can reach no less than 10 kg/h;
(3) injecting once deionized water, and allowing the continuous running time to be not less than 2 h;
(4) high-temperature steam pressure not less than 0.3 MPa;
(5) the equipment has an overpressure alarm function, and can be safely discharged at overpressure;
(6) the equipment is reliable and convenient to move.
A flow control portion; comprises an electromagnetic valve 8, an electric pressure reducing valve 9, a flowmeter 10 and a second temperature and pressure sensor 11; steam generator 3 reaches after requiring temperature and pressure, adjust electric reducing valve 9, survey the warm pressure sensor 11 of second of rear end, open until the test piece, outwards get rid of high-temperature steam, record warm pressure sensor 11's registration of second, because the product test medium is 100 ℃ high-temperature steam, each part of pipeline all can reach higher temperature in the testing process, because safety consideration this moment, can not carry out manual regulation flow, require that flow control possesses remote regulation ability in the testing process, the concrete requirement:
(1) the flow rate regulation precision is not less than 0.1 kg/h;
(2) the whole pipeline from the steam generator to the product connection adopts good heat preservation measures;
(3) a product inlet, which is close to the product, and is used for testing the pressure and the temperature of the product inlet;
(4) the emergency pause 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, and after the product is opened, the electric ball is startedA valve 15 and a vacuum pump system 16, the pressure of the vacuum pump is 20KPa, the pressure requirement of the product outlet 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 100m3The vacuum pump of/h, when the product is worked, synchronously start the vacuum pump, and adopt the way of bypass admission or control bypass solenoid valve 6 switch, balance the matching of constant flow vacuum pump and variable flow product exhaust, thus reach the technical index of product export 5 KPa-20 KPa that the design requires. According to the design flow of the product, 1.3L/s and the full-open flow 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 is calculated according to an ideal formula:
wherein P1 is exhaust pressure, V1 is exhaust flow, T1 is high temperature steam temperature, P2 is vacuum cavity pressure, V2 is vacuum exhaust flow, and T2 is vacuum cavity temperature. It was found that, at a product flow of 1.3L/s, the discharge flow was 6.63L/s (23 m)3Calculated according to the volume of 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 meanwhile, the switch of the electric ball valve in front of the vacuum pump is controlled, so that the pressure can be kept in balance at (5-20) KPa; when the product flow is 4L/s, the discharge flow is 20.4L/s (73 m)3And h), under the condition that the vacuum pump is not started according to the volume of 200L of the vacuum tank 14, (5-20) KPa, the pressure rise time is about 7.3s, and the vacuum pump is started simultaneously, so that the working efficiency of the vacuum pump according to the specification can maintain the pressure of the vacuum tank 14 to be balanced at (5-20) KPa. The concrete requirements are as follows:
(1) drawing speed: 100m3/h；
(2) Limiting pressure: 0.1-0.5 mbar;
(3) buffering a vacuum tank: 200L, can resist the temperature of not less than 100 ℃.
The high-temperature steam treatment part comprises an exhaust water tank 17, wherein a temperature sensor is arranged on the exhaust water tank 17, the temperature is monitored in real time, a coil pipe is designed in the water tank, the high-temperature steam is effectively condensed into liquid and then discharged, the temperature of the test medium high-temperature steam is still high after the test medium high-temperature steam passes through a product, the test medium high-temperature steam is forbidden to be directly discharged in the air from the safety perspective, and the system has high-temperature steam treatment capacity and is discharged in a water cooling mode. The concrete 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 processing capacity of the recovery equipment is not less than 15 kg/h;
(3) and monitoring the temperature of the recovery equipment in real time.
Wherein, the high temperature steam generator part and the flow control part are integrated into a whole, which is convenient for moving; 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 maximum height of the whole is less than 1.5 meters, and the maximum width of the whole is less than 1.5 meters.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (4)
1. High temperature steam test system, its characterized in that: including high temperature steam generator module and flow control module integrated body and high temperature steam processing module and vacuum system module integrated body, high temperature steam generator module provide the high temperature steam more than 100 ℃ for the testpieces, flow control module adjustment high temperature steam generator module output steam temperature and pressure, the flow regulation precision no more than 0.1L/s, testpieces export intercommunication vacuum system module, vacuum system module take out speed: 100m3H, limiting pressure: 0.1-0.5 mbar; 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-off valve, a stop valve and a first temperature and pressure sensor; the above-mentionedThe flow control module is also provided with a bypass electromagnetic valve for balancing the matching of the constant-flow vacuum pump and the exhaust of the variable-flow product.
2. A high temperature steam test system as set forth in claim 1, wherein: the vacuum system module adopts a 200L stainless steel vacuum tank, and the connection flow of the vacuum tank is 100m3Vacuum pump,/h.
3. A high temperature steam test system as set forth in claim 1, wherein: the exhaust water tank is internally provided with a coil pipe, and the exhaust water tank is provided with a temperature sensor.
4. A high temperature steam test system as set forth in claim 1, wherein: and a second temperature and pressure sensor is arranged at the inlet end of the test piece.
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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| CN114383838A true CN114383838A (en) | 2022-04-22 |
| CN114383838B CN114383838B (en) | 2024-04-09 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114383838B (en) | 2024-04-09 |
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