CN110907180A - Cooling method for high-temperature jet combustion equipment used for darkroom - Google Patents
Cooling method for high-temperature jet combustion equipment used for darkroom Download PDFInfo
- Publication number
- CN110907180A CN110907180A CN201911004711.5A CN201911004711A CN110907180A CN 110907180 A CN110907180 A CN 110907180A CN 201911004711 A CN201911004711 A CN 201911004711A CN 110907180 A CN110907180 A CN 110907180A
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- Prior art keywords
- temperature
- exhaust
- darkroom
- cooling
- heat insulation
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- 238000001816 cooling Methods 0.000 title claims abstract description 30
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 38
- 238000009413 insulation Methods 0.000 claims abstract description 32
- 238000012360 testing method Methods 0.000 claims abstract description 27
- 239000007921 spray Substances 0.000 claims abstract description 20
- 238000000034 method Methods 0.000 claims abstract description 15
- 239000000498 cooling water Substances 0.000 claims abstract description 11
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000005259 measurement Methods 0.000 abstract description 3
- 239000011358 absorbing material Substances 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 239000000243 solution Substances 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- 229920005830 Polyurethane Foam Polymers 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000011496 polyurethane foam Substances 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 238000005493 welding type Methods 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
- G01M15/02—Details or accessories of testing apparatus
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Engines (AREA)
Abstract
The invention discloses a cooling method of high-temperature jet combustion equipment for a darkroom, which comprises an equipment base, a measurement and control system and a heat-insulating cooling water system, and comprises the following steps: the method comprises the following steps: high-temperature tail gas discharged from a darkroom enters an exhaust funnel of the test bed; step two: the high-temperature tail gas of the test bed exhaust funnel immediately enters the heat insulation barrel; step three: cooling the cooling water sprayed and atomized towards the high-temperature exhaust in the heat insulation barrel; step four: testing the heat insulation barrel and the tail gas by measuring and controlling the water spray pressure, the exhaust temperature before water spray, the exhaust temperature before exhaust waveguide and the temperature of the outer wall of the heat insulation barrel in system equipment to enable the temperature to be lower than 300 ℃; step five: high-temperature tail gas with the temperature lower than 300 ℃ enters the waveguide window and then leaves the darkroom; the cost is reduced, the manufacturing volume and the weight of the product are reduced, the loading test of the aero-engine in a darkroom is met, the performance problem in the loading process can be better fed back, and the method contributes to the national engine industry.
Description
Technical Field
The invention belongs to the technical field of darkrooms, and particularly relates to a cooling method for high-temperature jet combustion equipment of a darkroom.
Background
The darkroom mainly comprises a shielding room and a wave-absorbing material. The shielding chamber is composed of a shielding shell, a shielding door, a ventilation waveguide window, various power filters and the like. According to the requirement of a user, the shielding shell can adopt a welding type or assembling type structure. The wave-absorbing material consists of a single-layer ferrite sheet with the working frequency range of 30 MHz-1000 MHz and a conical carbon-containing sponge wave-absorbing material, wherein the conical carbon-containing sponge wave-absorbing material is formed by polyurethane foam plastic permeating in a carbon adhesive solution, has better flame retardant property, engines of aviation and the like are placed in a darkroom for testing, the engine is sprayed to 800 ℃, the high temperature needs to be led out of the darkroom without damaging the materials of the darkroom, the only channel of the darkroom capable of discharging high-temperature tail gas is a waveguide window, but the best waveguide window at home and abroad at present can only resist the high temperature of 300 ℃, so the temperature of 800 ℃ needs to be reduced to 300 ℃ in a short distance.
The existing method has the problems of very high manufacturing cost, large volume of manufactured finished products and heavy weight, and therefore a cooling method of high-temperature jet combustion equipment for a darkroom is provided.
Disclosure of Invention
The invention aims to provide a cooling method for high-temperature jet combustion equipment in a darkroom, which aims to solve the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: a cooling method of high-temperature jet combustion equipment for a darkroom comprises an equipment base, a measurement and control system and a heat insulation cooling water system, and comprises the following steps:
the method comprises the following steps: high-temperature tail gas discharged from a darkroom enters an exhaust funnel of the test bed;
step two: the high-temperature tail gas of the test bed exhaust funnel immediately enters the heat insulation barrel;
step three: cooling the cooling water sprayed and atomized towards the high-temperature exhaust in the heat insulation barrel;
step four: testing the heat insulation barrel and the tail gas by measuring and controlling the water spray pressure, the exhaust temperature before water spray, the exhaust temperature before exhaust waveguide and the temperature of the outer wall of the heat insulation barrel in system equipment to enable the temperature to be lower than 300 ℃;
step five: the high temperature exhaust gas below 300 ℃ enters the waveguide window and thus leaves the darkroom.
Preferably, the equipment base is designed to be arranged at the front and the rear respectively, so as to support the whole cooling system and ensure that the main bearing force of the cooling system is not on the darkroom shield.
Preferably, the system for controlling the water spray pressure, the exhaust temperature before water spray, the exhaust temperature before exhaust waveguide and the temperature of the outer wall of the heat insulation barrel of the test control system can ensure the normal operation of the system, and the test control system is arranged according to the requirements of a user of the test bed.
Preferably, the heat insulation cooling water system comprises an equipment heat insulation barrel, a water circulation system, a water supply waveguide, a water return waveguide and the like.
Preferably, the heat insulation cylinder is of a round-top-square structure, the front of the heat insulation cylinder is round and is connected with the injection cylinder of the test bed, the water spray cooling system is installed in the cylinder, the cylinder is externally provided with a water jacket to insulate heat of the interior of the exhaust cylinder, the temperature is not higher than 100 ℃, and the rear end of the heat insulation cylinder can be connected with the exhaust waveguide connecting plate.
Preferably, the water spray cooling system comprises a booster water pump, an atomizing nozzle and a water quantity adjusting device.
Compared with the prior art, the invention has the beneficial effects that: the cost is reduced, the manufacturing volume and the weight of the product are reduced, the loading test of the aero-engine in a darkroom is met, the performance problem in the loading process can be better fed back, and the method contributes to the national engine industry.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a technical scheme that: a cooling method of high-temperature jet combustion equipment for a darkroom comprises an equipment base, a measurement and control system and a heat insulation cooling water system, and comprises the following steps:
the method comprises the following steps: high-temperature tail gas discharged from a darkroom enters an exhaust funnel of the test bed;
step two: the high-temperature tail gas of the test bed exhaust funnel immediately enters the heat insulation barrel;
step three: cooling the cooling water sprayed and atomized towards the high-temperature exhaust in the heat insulation barrel;
step four: testing the heat insulation barrel and the tail gas by measuring and controlling the water spray pressure, the exhaust temperature before water spray, the exhaust temperature before exhaust waveguide and the temperature of the outer wall of the heat insulation barrel in system equipment to enable the temperature to be lower than 300 ℃;
step five: the high temperature exhaust gas below 300 ℃ enters the waveguide window and thus leaves the darkroom.
In this embodiment, preferably, the equipment base is designed to be one in front and at the back to support the whole cooling system, and the main bearing force of the cooling system is ensured not to be on the darkroom shield.
In this embodiment, preferably, the system for controlling the water spray pressure, the exhaust temperature before water spray, the exhaust temperature before the exhaust waveguide and the temperature of the outer wall of the heat insulation cylinder of the test control system should ensure the normal operation of the system, and the test control system is arranged according to the requirements of the user of the test bed.
In this embodiment, preferably, the heat-insulating cooling water system includes an equipment heat-insulating barrel, a water circulation system, a water supply waveguide, a return water waveguide, and the like.
In this embodiment, preferably, the heat insulation cylinder has a round top and a square bottom, the front of the heat insulation cylinder is round and is connected with the injection cylinder of the test bed, the water spray cooling system is installed in the cylinder, the cylinder is externally provided with a water jacket to insulate heat in the exhaust cylinder, the temperature is not higher than 100 ℃, and the rear end of the heat insulation cylinder can be connected with the exhaust waveguide connecting plate.
In this embodiment, preferably, the water spray cooling system includes a booster water pump, an atomizing nozzle, and a water amount adjusting device.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A cooling method of high-temperature jet combustion equipment for a darkroom is characterized by comprising the following steps: including equipment base, observing and controlling system, thermal-insulated cooling water system, its step is:
the method comprises the following steps: high-temperature tail gas discharged from a darkroom enters an exhaust funnel of the test bed;
step two: the high-temperature tail gas of the test bed exhaust funnel immediately enters the heat insulation barrel;
step three: cooling the cooling water sprayed and atomized towards the high-temperature exhaust in the heat insulation barrel;
step four: testing the heat insulation barrel and the tail gas by measuring and controlling the water spray pressure, the exhaust temperature before water spray, the exhaust temperature before exhaust waveguide and the temperature of the outer wall of the heat insulation barrel in system equipment to enable the temperature to be lower than 300 ℃;
step five: the high temperature exhaust gas below 300 ℃ enters the waveguide window and thus leaves the darkroom.
2. The method for cooling the high-temperature jet combustion equipment in the darkroom, according to claim 1, is characterized in that: the equipment base is designed to be arranged at the front and the rear respectively, supports the whole cooling system and ensures that the main bearing force of the cooling system is not on the darkroom shield.
3. The method for cooling the high-temperature jet combustion equipment in the darkroom, according to claim 1, is characterized in that: the system for controlling the water spray pressure, the exhaust temperature before water spray, the exhaust temperature before exhaust waveguide and the temperature of the outer wall of the heat insulation barrel of the test control system can guarantee the normal operation of the system, and the test control system is arranged according to the requirement of a user of the test bed.
4. The method for cooling the high-temperature jet combustion equipment in the darkroom, according to claim 1, is characterized in that: the heat-insulating cooling water system comprises an equipment heat-insulating barrel, a water circulating system, a water supply waveguide, a return water waveguide and the like.
5. The method for cooling the high-temperature jet combustion equipment in the darkroom, according to claim 1, is characterized in that: the heat insulation cylinder is of a round-top and square-bottom structure, the front of the heat insulation cylinder is circular and is connected with the injection cylinder of the test bed, a water spray cooling system is installed in the cylinder, the cylinder is externally provided with a water jacket to insulate heat of the interior of the exhaust cylinder, the temperature is not higher than 100 ℃, and the rear end of the heat insulation cylinder can be connected with the exhaust waveguide connecting plate.
6. The method for cooling the high-temperature jet combustion equipment for the dark room according to claim 6, wherein the method comprises the following steps: the water spray cooling system comprises a booster water pump, an atomizing nozzle and a water quantity adjusting device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911004711.5A CN110907180A (en) | 2019-10-17 | 2019-10-17 | Cooling method for high-temperature jet combustion equipment used for darkroom |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911004711.5A CN110907180A (en) | 2019-10-17 | 2019-10-17 | Cooling method for high-temperature jet combustion equipment used for darkroom |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110907180A true CN110907180A (en) | 2020-03-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911004711.5A Pending CN110907180A (en) | 2019-10-17 | 2019-10-17 | Cooling method for high-temperature jet combustion equipment used for darkroom |
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| Country | Link |
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| CN (1) | CN110907180A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203657542U (en) * | 2013-10-18 | 2014-06-18 | 江西稀有稀土金属钨业集团有限公司 | High-temperature gas atomization type rapid cooling system |
| CN205260103U (en) * | 2016-01-09 | 2016-05-25 | 中航长沙设计研究院有限公司 | Aeroengine ground testing tail gas heat recovery sound damping tower |
| CN207485516U (en) * | 2017-08-29 | 2018-06-12 | 天津大学 | Exhaust twin-stage spray cooling system based on flame proof rubber tyre vehicle |
| CN207556310U (en) * | 2017-12-11 | 2018-06-29 | 中国航发沈阳发动机研究所 | A kind of high-temperature exhaust air central water spray cooling device |
| CN109752188A (en) * | 2019-01-16 | 2019-05-14 | 中国航发沈阳发动机研究所 | A kind of outlet cooling section for main-chamber ignition performance test |
-
2019
- 2019-10-17 CN CN201911004711.5A patent/CN110907180A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203657542U (en) * | 2013-10-18 | 2014-06-18 | 江西稀有稀土金属钨业集团有限公司 | High-temperature gas atomization type rapid cooling system |
| CN205260103U (en) * | 2016-01-09 | 2016-05-25 | 中航长沙设计研究院有限公司 | Aeroengine ground testing tail gas heat recovery sound damping tower |
| CN207485516U (en) * | 2017-08-29 | 2018-06-12 | 天津大学 | Exhaust twin-stage spray cooling system based on flame proof rubber tyre vehicle |
| CN207556310U (en) * | 2017-12-11 | 2018-06-29 | 中国航发沈阳发动机研究所 | A kind of high-temperature exhaust air central water spray cooling device |
| CN109752188A (en) * | 2019-01-16 | 2019-05-14 | 中国航发沈阳发动机研究所 | A kind of outlet cooling section for main-chamber ignition performance test |
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Application publication date: 20200324 |
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| RJ01 | Rejection of invention patent application after publication |