CN115931367A - Gas cleaning, cooling and explosion-proof device for high-altitude simulation test - Google Patents
Gas cleaning, cooling and explosion-proof device for high-altitude simulation test Download PDFInfo
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- CN115931367A CN115931367A CN202310187577.7A CN202310187577A CN115931367A CN 115931367 A CN115931367 A CN 115931367A CN 202310187577 A CN202310187577 A CN 202310187577A CN 115931367 A CN115931367 A CN 115931367A
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Abstract
The invention provides a gas cleaning, cooling and explosion-proof device for a high-altitude simulation test, which comprises a water spray curtain structure, wherein the water spray curtain structure is positioned in a shell and comprises a water spray pipe network and a plurality of spray heads distributed on the water spray pipe network; the liquid removing structure is arranged in the shell and is used for separating a water-oil mixture in the fuel gas treated by the water spray curtain structure; the liquid drainage structure is arranged on the shell. The gas cleaning, cooling and explosion-proof device designed by the invention is one of the most important devices of the whole engine high-altitude simulation test bed, integrates the functions of gas cleaning, cooling and explosion-proof into a whole, and has the advantages of compact device, reduced pressure loss, saved investment, improved performance of an air extraction system and capability of ensuring the safety of a high-altitude simulation test.
Description
Technical Field
The invention belongs to the field of engine tests, relates to a design technology of a multifunctional test device integrating large-flow gas cleaning, cooling and explosion prevention for an air exhaust system in a high-altitude simulation test, and particularly relates to a gas cleaning, cooling and explosion prevention device for the high-altitude simulation test.
Background
The high-altitude simulation test of the aero-engine is an important means for the design verification of the aero-engine and an insurmountable important link in the development process. In the process of the simulation test, unburnt fuel oil enters an air extraction system, and the possibility of explosion or explosion exists, so that the running safety of an air extractor set is threatened, and the research and development process of an engine is influenced.
Because the air extractor group has strict restriction to the temperature of entry gas, consequently use the heat exchanger to the gas cooling at present usually, though it can satisfy the cooling requirement, but the fuel in the gas can not be got rid of to it, and the heat exchanger structure is complicated simultaneously, heat exchange efficiency is low, with high costs.
In view of this, in the simulation test process, in order to ensure the operation safety of the air extraction system, the fuel in the fuel gas needs to be removed while the fuel gas needs to be efficiently cooled, so as to eliminate the potential safety hazard of combustion and explosion.
Disclosure of Invention
In the process of a high-altitude simulation test, in order to treat gas before entering an air exhaust system so as to avoid potential safety hazards of explosion and solve the problems of complex structure, high cost, low heat exchange efficiency, high pressure loss and the like of a heat exchanger for treating the gas, the invention provides a gas cleaning, cooling and explosion-proof device for the high-altitude simulation test, which is a multifunctional treatment device integrating large-flow gas cleaning, cooling and explosion-proof.
The technical scheme for realizing the purpose of the invention is as follows: the utility model provides a gas washs cooling and hinders and explodes device for high altitude analogue test, includes:
the water spraying curtain structure is positioned in the shell and comprises a water spraying pipe network and a plurality of spray heads distributed on the water spraying pipe network;
the liquid removing structure is arranged in the shell and used for separating a water-oil mixture in the fuel gas treated by the water spraying curtain structure;
the liquid drainage structure is arranged on the shell.
In one embodiment, the water spraying pipe network is any one of a tree structure, a net structure and a grid structure, and comprises a plurality of main water spraying pipes located in the same axial section of the shell, a plurality of branch water spraying pipes are distributed on the main water spraying pipes, and each branch water spraying pipe is provided with the spray head.
In an optional embodiment, the water spray pipe network further includes a thermal compensation mounting rack and a U-shaped fixing member, the thermal compensation mounting rack is disposed on an inner wall of the housing, the U-shaped fixing member is fixed on the thermal compensation mounting rack, and the water spray branch pipes are fixed on the U-shaped fixing member.
In an alternative embodiment, a plurality of the main water spray pipes are uniformly arranged on the circular section of the shell, and the plurality of the main water spray pipes are connected in parallel to the main water spray pipes outside the shell.
In an optional embodiment, 2 to 3 water spray pipe nets are arranged, and 2 to 3 water spray pipe nets are arranged along the axial direction of the shell.
In one embodiment, the liquid removing structure comprises a blocking plate, liquid removing units connected with the inner wall of the shell through a fixing frame are arranged on two sides of the blocking plate, and the liquid removing units are used for adsorbing water-oil mixtures in fuel gas passing through the water spraying curtain structure.
In an alternative embodiment, the liquid removal unit comprises a plurality of baffles.
In one embodiment, the drain structure comprises a plurality of drain holes formed in the lower portion of the housing, and a drain pipe is connected to the drain holes.
Compared with the prior art, the invention has the beneficial effects that: according to the gas cleaning, cooling and explosion-proof device designed by the invention, the water spray curtain structure is used for washing hard impurities wrapped in the gas, and the temperature of the gas is reduced to meet the allowable temperature of the inlet of the air extraction system, so that the problems of gas cooling and cleaning are effectively solved; meanwhile, through the design of the liquid removing structure, the gas can flow to the liquid removing unit from the two sides of the blocking plate, the liquid removing unit removes oil-water mixed liquid in the gas and then outputs the liquid, the flow rate of the gas can be effectively reduced, the removal efficiency of the wrapped water-oil mixture in the gas is ensured, the potential safety hazard of combustion and explosion caused by re-combustion of the gas in an air extraction system is prevented, the operation safety of an air extractor set is ensured, and the normal operation of a high-altitude simulation test is ensured.
Drawings
In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings used in the description of the embodiment will be briefly introduced below.
FIG. 1 is a schematic structural diagram of a gas cleaning, cooling and explosion-proof device of the present invention;
FIG. 2 is a schematic view of a water curtain configuration in accordance with an embodiment;
FIG. 3 is an enlarged view of a portion A of FIG. 2;
FIG. 4 is an enlarged view of a portion of the U-shaped fastener shown at I in FIG. 3;
FIG. 5 is a schematic view of the U-shaped fastener of FIG. 4 showing the direction of AA
FIG. 6 is a schematic view of a fluid removal structure in accordance with an embodiment;
wherein, 1, a water spray curtain structure; 2. a liquid removal structure; 3. a housing; 4. a drain hole; 12. a main water spraying pipe; 13. a water spray branch pipe; 14. a thermally compensated mounting frame; 15. a U-shaped fixing member; 16. a main water spray pipe; 21. a blocking plate; 22. a fixed mount; 23. a liquid removal unit; 231. and (7) a baffle plate.
Detailed Description
The invention will be further described with reference to specific embodiments, and the advantages and features of the invention will become apparent as the description proceeds. These examples are illustrative only and do not limit the scope of the present invention in any way. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention, and that such changes and substitutions are intended to be within the scope of the invention.
This embodiment provides a gas washs cooling and hinders and explodes device for high altitude analogue test, and referring to fig. 1 to 3, the gas washs cooling and hinders and explodes the device and include:
the water spraying structure comprises a water spraying curtain structure 1, wherein the water spraying curtain structure 1 is positioned in a shell 3 and comprises a water spraying pipe network and a plurality of spray heads distributed on the water spraying pipe network;
the liquid removing structure 2 is arranged in the shell 3 and is used for separating a water-oil mixture in the fuel gas treated by the water spraying curtain structure 1;
a liquid discharge structure provided on the housing 3.
In an embodiment of the water spraying pipe network, as shown in fig. 2 to 5, the water spraying pipe network is any one of a tree-shaped structure, a net-shaped structure and a grid-shaped structure, as shown in fig. 3, the water spraying pipe network includes a plurality of main water spraying pipes 12 located in the same axial section of the housing 3, a plurality of branch water spraying pipes 13 are distributed on the main water spraying pipes 12, each branch water spraying pipe 13 is provided with the spray head, and the water spraying direction of the spray head is opposite to the air flow direction of the gas in the housing 3. In the same axial cross-section of casing, adopt arbitrary structure in tree structure, network structure, the grid column structure to be responsible for 12, the water spray branch 13 carries out the overall arrangement to the water spray, cover the whole circular cross-section of casing 3 with a plurality of shower nozzles, when the gas got into casing 3, make the shower nozzle is to the direction blowout water droplet or the atomizing water droplet relative with gas air current direction, can realize the abundant washing of gas to getting into casing 3, and partial water droplet or atomizing water droplet condense the back and fall into the casing 3 bottom and collect this moment, and the part is carried the output rear end by the gas.
In an alternative embodiment of the water spray pipe network, the main water spray pipe 12 and the branch water spray pipe 13 are disposed in the housing 3, and the temperature of the high-temperature fuel gas introduced into the housing 3 can reach more than 200 ℃, so when the main water spray pipe 12 and the branch water spray pipe 13 are fixed, on one hand, the selection of the materials thereof needs to be considered, and a certain thermal compensation capability needs to be considered when the main water spray pipe 12 and the branch water spray pipe 13 are heated to generate thermal deformation. In this embodiment, referring to fig. 4 and 5, the water spray pipe network further includes a thermal compensation mounting frame 14, and a U-shaped fixing member 15, wherein the thermal compensation mounting frame 14 is disposed on the inner wall of the housing 3, the U-shaped fixing member 15 is fixed on the thermal compensation mounting frame 14, and the water spray branch pipes 13 are fixed on the U-shaped fixing member 15. According to the thermal compensation mounting rack 14 and the U-shaped fixing piece 15 designed by the invention, when high-temperature fuel gas enters the shell 3 to cause thermal deformation of each water pipeline and the U-shaped fixing piece 15, on one hand, each water pipeline can move in the U-shaped fixing piece 15, and on the other hand, the U-shaped fixing piece 15 can also move on the thermal compensation mounting rack 14 along the longitudinal direction or the transverse direction to a small extent, so that the stability of the water spray curtain structure 1 is ensured.
In an alternative embodiment of the water spray pipe network, in order to make the small water drops or atomized water drops uniformly contact with the fuel gas, a plurality of main water spray pipes 12 are uniformly arranged on a circular section (also referred to as an axial section or a section perpendicular to the axis of the housing 3) of the housing 3, and as shown in fig. 2, a plurality of main water spray pipes 12 are connected in parallel to a main water spray pipe 16 located outside the housing 3.
In order to improve the cooling and washing efficiency of the fuel gas, in an optional embodiment of the water injection pipe network, which is not shown in the attached drawings, 2 to 3 water injection pipe networks are provided, and the 2 to 3 water injection pipe networks are arranged along the axial direction of the shell 3.
In one embodiment of the liquid removing structure 2, the fuel gas cooled and washed by the water spraying curtain structure 1 carries a part of liquid, and still contains a part of oil, and the liquid removing structure 2 needs to be designed to separate and remove the fuel gas. Referring to fig. 6, the liquid removing structure 2 includes a blocking plate 21, liquid removing units 23 connected to the inner wall of the housing 3 through fixing frames 22 are disposed on two sides of the blocking plate 21, and the liquid removing units 23 are used for adsorbing a water-oil mixture in the gas passing through the water spray curtain structure 1.
In this embodiment, closure plate 21 can be located casing 3, can carry out partial shutoff to the passageway of the interior gas circulation of casing 3, and this embodiment can design the area proportion of closure plate 21 and 3 circular cross-sections of casing according to parameters such as gas velocity of flow, water spray speed, casing sectional area.
In the present embodiment, the principle of the liquid removing structure 2 is as follows: firstly, after the gas flowing through the shell 3 contacts the blocking plate 21, part of water liquid in the gas adheres to and flows down on the blocking plate 21, meanwhile, the gas flow direction changes, and the gas flows to two sides of the blocking plate 21 and enters the liquid removing unit 23; secondly, the water liquid/oil liquid in the fuel gas can be attached to the liquid removing unit 23, and meanwhile, the treated fuel gas passes through the liquid removing unit 23 and then is output; finally, the water liquid/oil liquid attached to the liquid removing unit 23 adheres to the liquid removing unit 23, and flows down to the bottom of the shell 3 through the liquid removing unit 23, so that the water liquid/oil liquid in the gas is removed. Through removing liquid structure 2 and designing, make the gas follow the both sides flow direction of closure plate and remove the liquid unit, export after removing liquid unit and getting rid of the mixed liquid of oil water in the gas, the velocity of flow that can effectual reduction gas ensures the efficiency of getting rid of the water oil mixture of wrapping up in the gas to prevent the gas and re-fire and the explosion potential safety hazard that causes in air exhaust system, guaranteed air extractor group operation safety, in order to ensure high altitude simulation test normal clear.
In an alternative embodiment of the liquid removal unit 23, as shown in fig. 6, the liquid removal unit 23 comprises a plurality of baffles 231. In this embodiment, the plurality of baffles 231 may be arranged in parallel or at a certain angle, for example, after the plurality of baffles 231 are arranged at a certain angle, the liquid droplets having large inertia in the gas collide with the inclined baffles 231 and are adhered to the surfaces of the baffles 231 to form a liquid film, and the liquid film flows down through the baffles 231 and is collected to the bottom of the shell 3.
In an embodiment of the liquid discharge structure, as shown in fig. 1, the liquid discharge structure includes a plurality of liquid discharge holes 4 formed in a lower portion of the housing 3, and a liquid discharge pipe is connected to the liquid discharge holes 4, in this embodiment, 2 to 5 liquid discharge holes 4 may be formed according to the length of the housing 3, and the shape, size, etc. of the liquid discharge holes 4 may be designed according to requirements).
The gas cleaning, cooling and explosion-proof device provided by the specific embodiment has the following advantages:
a. the high-temperature fuel gas can be efficiently cooled to the temperature allowed by the inlet of the air extractor unit by spraying water through the water spraying curtain structure, so that after-combustion is prevented, and meanwhile, the fuel gas is cleaned to take away part of liquid oil and hard impurities, so that the safe operation of an air extraction system is ensured;
b. the liquid water and oil mixture which is entrained by the airflow is efficiently separated through the liquid removing unit, so that the running safety of the air extraction supercharging unit is ensured;
c. the gas cleaning, cooling and explosion-proof functions are integrated, so that the device is compact, the pressure loss is reduced, and the investment is saved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (8)
1. The utility model provides a gas washs cooling and hinders and explodes device for high altitude analogue test which characterized in that includes:
the water spraying curtain structure is positioned in the shell and comprises a water spraying pipe network and a plurality of spray heads distributed on the water spraying pipe network;
the liquid removing structure is arranged in the shell and is used for separating a water-oil mixture in the fuel gas treated by the water spray curtain structure;
the liquid drainage structure is arranged on the shell.
2. The gas cleaning, temperature reduction and explosion suppression device according to claim 1, characterized in that: the water spraying pipe network is any one of a tree-shaped structure, a net-shaped structure and a grid-shaped structure, and comprises a plurality of water spraying main pipes which are positioned in the same axial section of the shell, a plurality of water spraying branch pipes are distributed on the water spraying main pipes, and each water spraying branch pipe is provided with the spray head.
3. The gas cleaning, temperature reduction and explosion suppression device as claimed in claim 2, wherein: the water spray pipe network further comprises a thermal compensation mounting frame and a U-shaped fixing piece, the thermal compensation mounting frame is arranged on the inner wall of the shell, the U-shaped fixing piece is fixed on the thermal compensation mounting frame, and the water spray branch pipes are fixed on the U-shaped fixing piece.
4. The gas cleaning, temperature reduction and explosion suppression device as claimed in claim 2, wherein: the plurality of main water spraying pipes are uniformly arranged on the circular section of the shell, and are connected in parallel to the main water spraying pipe outside the shell.
5. The gas washing, temperature reducing and explosion preventing device as defined in any one of claims 2 to 4, wherein: 2-3 water spray pipe networks are arranged along the axial direction of the shell, and 2-3 water spray pipe networks are arranged along the axial direction of the shell.
6. The gas cleaning, temperature reduction and explosion suppression device according to claim 1, characterized in that: remove the liquid structure and include the closure plate, the closure plate both sides are equipped with through mount and shells inner wall connected remove the liquid unit, it is used for adsorbing to pass to remove the liquid unit spout the water oil mixture in the gas of cascade structure.
7. The gas cleaning, temperature reduction and explosion suppression device according to claim 6, characterized in that: the liquid removal unit comprises a plurality of baffle plates.
8. The gas cleaning, temperature reduction and explosion suppression device as claimed in claim 1, wherein: the liquid discharge structure comprises a plurality of liquid discharge holes formed in the lower portion of the shell, and liquid discharge pipes are connected to the liquid discharge holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310187577.7A CN115931367B (en) | 2023-03-02 | 2023-03-02 | A gas washs cooling and hinders and explodes device for high altitude analogue test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310187577.7A CN115931367B (en) | 2023-03-02 | 2023-03-02 | A gas washs cooling and hinders and explodes device for high altitude analogue test |
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| Publication Number | Publication Date |
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| CN115931367A true CN115931367A (en) | 2023-04-07 |
| CN115931367B CN115931367B (en) | 2023-06-30 |
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| CN202310187577.7A Active CN115931367B (en) | 2023-03-02 | 2023-03-02 | A gas washs cooling and hinders and explodes device for high altitude analogue test |
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