A thermal infrared camouflage system for smoke elimination and temperature reduction in underground power stations

Abstract

The utility model relates to the technical field of infrared camouflage equipment, and discloses a thermal infrared camouflage system for smoke elimination and temperature reduction in an underground power station, including a smoke exhaust channel, a smoke exhaust main pipe, a black smoke purifier, a steam-water heat exchanger and a heater; the smoke exhaust branch pipes of multiple diesel generators in the underground power station are connected to the smoke exhaust main pipe, the smoke exhaust main pipe is connected to the inlet end of the smoke exhaust channel, the steam-water heat exchanger and the black smoke purifier are correspondingly installed on the smoke exhaust branch pipe of each diesel generator, the steam-water heat exchanger is arranged close to the diesel generator, the drainage end of the steam-water heat exchanger is respectively connected to the water inlet end of the heater and the water use and heating end heat equipment in the protection project, and the exhaust end of the heater is connected to the air intake end of the diesel generator. Its beneficial effect is that the system uses the waste heat of the power station for heating at the end of the underground project, shortens the warm-up time of the diesel generator in the low temperature season, improves the efficiency, and saves energy.

Description

Technical Field

[0001] The utility model relates to the technical field of anti-infrared camouflage equipment, in particular to a thermal infrared camouflage system for smoke elimination and temperature reduction in an underground power station. Background Art

[0002] Usually, a power station must be set up inside the protection project to ensure the needs of the operation. When the power station unit is in operation, a large amount of high-temperature flue gas and waste heat will be generated. The waste heat from diesel generator combustion and flue gas together account for about 60%-70% of the heat generated by fuel combustion power generation. If not handled in time, it will have an adverse effect on the generator power and maintenance personnel; at the same time, the high-temperature flue gas discharge causes obvious thermal infrared exposure symptoms, and under certain working conditions, a large amount of black smoke, blue smoke, white smoke, etc. will also be generated, causing obvious visible light exposure symptoms, and a large amount of black smoke, blue smoke, and white smoke will have an adverse effect on daily maintenance and the physical and mental health of the surrounding people. To achieve the normal operation and effective protection of the backup power station of the protection project, these problems must be solved.

[0003] At present, the main method of smoke elimination and cooling is thermal infrared camouflage treatment, in which high-temperature smoke is directly discharged through the exhaust pipe that has been insulated, and the waste heat of the power station and the heat inside the body are discharged to the outside through the exhaust fan and the power station cooling reservoir or through the air-conditioning cooling tower. It has high energy consumption and low unit operation efficiency, and produces obvious signs of thermal infrared exposure. The supporting cooling tower is large in size and easy to be detected. In addition, the cold start efficiency of diesel generators in high-altitude and cold regions and general areas during low temperature seasons is low and produces a lot of black smoke.

[0004] Comprehensively solving the problem of smoke elimination and temperature reduction thermal infrared camouflage, and making full use of waste heat, reducing project costs, improving cold machine startup efficiency, and improving overall cost-effectiveness are the requirements for achieving energy conservation and camouflage in protective engineering power stations. Utility Model Content

[0005] The purpose of the utility model is to provide a thermal infrared camouflage system for smoke elimination and cooling in an underground power station, so as to comprehensively solve the problems mentioned in the above background technology, such as low cold start efficiency of diesel generators, large amount of black smoke generated resulting in visible light exposure and thermal infrared exposure, and large amount of heat loss.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A thermal infrared camouflage system for smoke elimination and temperature reduction in an underground power station, comprising: a smoke exhaust channel, a smoke exhaust main pipe, a black smoke purifier, a steam-water heat exchanger and a heater; the underground power station has a diesel generator, and the smoke exhaust branch pipes of the diesel generator are all connected to the smoke exhaust main pipe, the smoke exhaust main pipe is connected to the inlet end of the smoke exhaust channel, and the outlet end of the smoke exhaust channel is connected to the outside world, the steam-water heat exchanger and the black smoke purifier are correspondingly installed on the smoke exhaust branch pipes of each of the diesel generators, the steam-water heat exchanger is arranged close to the diesel generator, so that the high-temperature hot smoke of the diesel generator is discharged from the smoke exhaust channel after heat exchange by the steam-water heat exchanger and purified by the black smoke purifier, the hot water outlet end of the steam-water heat exchanger is respectively connected to the water inlet end of the heater and the end heat equipment of the water and heating places in the protection project, and the exhaust end of the heater is connected to the air inlet end of the diesel generator to provide warm air to the diesel generator. While implementing comprehensive camouflage of power station exhaust gas using visible light and thermal infrared, the waste heat can be fully utilized for heating at the end of the underground project, and the warm-up time of diesel generators in low temperature seasons can be shortened, efficiency can be improved, and energy can be saved. It is simple and effective to implement, and its operation is stable and reliable.

[0008] Furthermore, the steam-water heat exchanger is installed on the smoke exhaust branch pipe to cool down the smoke temperature, which is beneficial to the capture of black smoke, reduces the thermal infrared signs of the smoke, and recovers the waste heat.

[0009] Furthermore, it also includes a thermostat, which is installed on the pipeline of the water jacket of the steam-water heat exchanger and is used to adjust the water flow through temperature monitoring.

[0010] Furthermore, it also includes a device camouflage room, which is arranged at the exit end of the smoke exhaust passage. By setting up the device camouflage room, the smoke exhaust passage can be camouflaged by visible light and thermal infrared shielding.

[0011] Furthermore, the equipment camouflage room is arranged as a wall facing the air near the smoke exhaust passage to resist shock waves and strengthen engineering protection.

[0012] Furthermore, it also includes a jet-type thermal infrared camouflage device, which is installed in an equipment camouflage room to perform thermal infrared camouflage treatment on the smoke discharged from the smoke exhaust channel.

[0013] Furthermore, it also includes a wave-breaking diffusion chamber, which is located in the smoke exhaust channel. The smoke exhausted from the smoke exhaust main pipe enters the smoke exhaust channel after being diffused by the wave-breaking diffusion chamber.

[0014] Furthermore, it also includes a muffler, which is installed on the exhaust branch pipe of each group of diesel generators. The muffler is set to silence the black smoke exhausted by the diesel generator and reduce noise.

[0015] Furthermore, the terminal heat-using equipment includes one or more of a terminal radiator, a water heater, a hot water tap and a fan coil unit, which are used for domestic water use and heating within the project.

[0016] Furthermore, the smoke exhaust channel is lined, which reduces water leakage from cracks in the smoke exhaust channel coating layer and reduces the generation of white smoke.

[0017] Furthermore, the camouflage system is located indoors or inside a mountain.

[0018] The utility model has the following advantages over the prior art:

[0019] 1. The utility model of the underground power station smoke elimination and cooling thermal infrared camouflage system, the high-temperature flue gas discharged by the diesel generator is heat exchanged through the air-water heat exchanger, firstly, the exhaust temperature is reduced to reduce the exposure symptoms of the exhaust thermal infrared camouflage, secondly, the flue gas temperature is reduced to improve the black smoke particle capture efficiency, and thirdly, the exhaust waste heat is recycled and utilized, the power station waste heat is used for terminal heating of the underground project, and warm air can be provided to the diesel generator, thus shortening the warm-up time of the diesel generator in the low temperature season, improving the efficiency and saving energy; a black smoke purifier is set to purify and eliminate the black smoke particles after the heat exchange, so as to avoid the visible light exposure caused by the large amount of black smoke discharged, and to avoid the adverse effects on the mental and physical health of officers and soldiers and the surrounding people.

[0020] 2. The utility model of the thermal infrared camouflage system for smoke elimination and cooling in underground power stations has an equipment camouflage room, and a jet-type thermal infrared camouflage device is arranged at the exhaust end of the equipment camouflage room to implement effective thermal infrared camouflage on the exhaust smoke. The system is simple and effective to use, and its operation is stable and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the use structure of the thermal infrared camouflage system for eliminating smoke and cooling in an underground power station in an embodiment of the utility model;

[0022] Figure 2 for Figure 1 The enlarged schematic diagram of point A in the middle;

[0023] In the figure: 1. Smoke exhaust channel; 2. Smoke exhaust main pipe; 3. Black smoke purifier; 4. Steam-water heat exchanger; 401. Water inlet; 402. Hot water outlet; 403. Return water; 5. Warm air blower; 6. Diesel generator; 7. Smoke exhaust branch pipe; 8. Equipment camouflage room; 9. Jet thermal infrared camouflage equipment; 10. Wave-breaking diffusion chamber; 11. Muffler; 12. Lining support; 13. Mountain. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] It should be noted that, in the description of the present invention, the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0026] In addition, it should be understood that for the convenience of description, the sizes of various components shown in the drawings are not drawn according to the actual proportional relationship.

[0027] It should be noted that like reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined or described in one drawing, it will not need to be further discussed and described in detail in the description of the subsequent drawings.

[0028] Example:

[0029] like Figure 1 As shown, the underground power station smoke elimination and cooling thermal infrared camouflage system shown in this embodiment is located inside the mountain 13. In other embodiments, this underground power station smoke elimination and cooling thermal infrared camouflage system can be located indoors. When located indoors, the form of the smoke exhaust channel and the equipment camouflage room is changed accordingly to suit the indoor working conditions.

[0030] like Figure 1 and Figure 2As shown, a thermal infrared camouflage system for smoke elimination and temperature reduction of an underground power station comprises: a smoke exhaust channel 1, a smoke exhaust main pipe 2, a black smoke purifier 3, a steam-water heat exchanger 4 and a heater 5; the underground power station has one or more diesel generators 6, and the smoke exhaust branch pipe 7 of each of the diesel generators 6 is connected to the smoke exhaust main pipe 2, the smoke exhaust main pipe 2 is connected to the inlet end of the smoke exhaust channel 1, and the outlet end of the smoke exhaust channel 1 is connected to the outside world, the steam-water heat exchanger 4 and the black smoke purifier 3 are correspondingly installed on the smoke exhaust branch pipe 7 of each of the diesel generators 6, and the steam-water heat exchanger 4 is arranged close to the diesel generator 6 so that The high-temperature hot smoke of the diesel generator 6 is discharged from the exhaust channel 1 after heat exchange in the steam-water heat exchanger 4 and purification in the black smoke purifier 3. The hot water outlet end 402 of the steam-water heat exchanger 4 is respectively connected to the water inlet end of the heater 5 and the terminal heat-using equipment at the water-using and heating places in the protection project. The exhaust end of the heater 5 is placed near the diesel generator 6 or connected to the air inlet end of the diesel generator 6 to provide warm air to the diesel generator 6. The water inlet end 401 of the steam-water heat exchanger 4 is used to add water to the steam-water heat exchanger, and the return water end 403 of the steam-water heat exchanger is used to access the return water of the terminal heat-using equipment. Among them, the black smoke purifier 3 is preferably a DPF black smoke purifier, which is used to purify the black smoke, blue smoke and white smoke generated by the diesel generator. The steam-water heat exchanger 4 is preferably a tubular heat exchanger, which is used to utilize the waste heat of the diesel generator exhaust. A muffler 11 is also installed on the exhaust branch pipe of each group of diesel generators to reduce the smoke noise. Terminal heat-using equipment includes terminal radiators, water heaters, hot water faucets and fan coil units, which are installed at water-using and heating locations within the project.

[0031] Specifically, the smoke exhaust passage 1 is set to be a slope according to the mountain conditions, and a lining support 12 is carried out inside the smoke exhaust passage to reduce water leakage from cracks in the covering layer and reduce the generation of white mist and smoke.

[0032] In this embodiment, the exhaust end of the heater 5 is placed near the diesel generator 6 or at the air intake end of the diesel generator 6 to provide warm air for the diesel generator 6, thereby improving the working efficiency of the diesel generator and reducing the generation of black smoke.

[0033] In this embodiment, the exhaust smoke of the diesel generator 6 is silenced by the muffler 11 and then heat exchanged through the steam-water heat exchanger. First, the exhaust smoke temperature is reduced to reduce the exposure symptoms of exhaust smoke thermal infrared camouflage. Second, the smoke temperature is reduced to improve the efficiency of black smoke particle capture. Third, the waste heat of the exhaust smoke is recycled. The waste heat recovered by the steam-water heat exchanger is transported to the terminal heat-using equipment and the heater 5 in the form of water. The hot air generated by the heater provides warm air for the diesel generator 6 in a low-temperature environment, thereby improving the working effect of the diesel generator. After heat exchange in the steam-water heat exchanger 4, the black smoke particles generated by the diesel generator 6 are purified and eliminated by the black smoke purifier 3 to avoid visible light exposure caused by the discharge of a large amount of black smoke.

[0034] In this embodiment, a thermostat (not shown in the figure) is also included. The thermostat is installed on the pipeline of the water jacket of the steam-water heat exchanger 4 and is used to adjust the water flow through temperature monitoring.

[0035] After cooling treatment (heat exchange in steam-water heat exchanger) and black smoke purification, the hot flue gas still has a relatively high temperature, which is far higher than the requirement of thermal infrared camouflage and the requirement of 3-5K difference in temperature between the surrounding background radiation. It needs further thermal infrared camouflage treatment. In this implementation, the high-temperature flue gas is led to the jet-type thermal infrared camouflage device after passing through the wave-breaking diffusion chamber 10. Under the action of the jet-type thermal infrared camouflage device, the high-temperature flue gas is effectively thermally camouflaged by infrared to avoid the high-temperature flue gas from generating strong thermal radiation to the exhaust outlet structure and the surrounding environment, causing engineering exposure. The specific operations are as follows:

[0036] The exit end (the exit end of the split slope) of the smoke exhaust passage 1 is provided with a device camouflage room 8 which can cover and camouflage the smoke exhaust passage 1. Moreover, the device camouflage room 8 is arranged according to the air wall near one side of the smoke exhaust passage 1 to resist shock waves and strengthen engineering protection.

[0037] Specifically, the wave-breaking diffusion chamber 10 is located in the smoke exhaust channel 1, and the smoke exhausted from the smoke exhaust main pipe 2 enters the smoke exhaust channel 1 after being diffused by the wave-breaking diffusion chamber 10. The jet-type thermal infrared camouflage device 9 is installed in the equipment camouflage room 8 to perform thermal infrared camouflage treatment on the smoke exhausted from the smoke exhaust channel 1. The equipment camouflage room 8 is set in the chopping mouth, and two partition walls are set, which can solve the thermal infrared exposure symptoms caused by the temperature difference between the inside and outside of the project. By further camouflaging the outside of the partition wall outside the equipment camouflage room by deformation, vegetation, etc., the comprehensive camouflage effect can be further improved. When installing the jet-type thermal infrared camouflage device 9, an existing jet-type anti-infrared camouflage exhaust device can be selected, such as the air layer isolation thermal infrared camouflage smoke elimination device disclosed in the utility model patent CN221120110U or the thermal infrared camouflage smoke elimination device disclosed in the utility model patent CN220434862U or the jet-type anti-infrared camouflage protective exhaust system disclosed in the invention patent CN113464504B. Ventilation equipment with certain performance can also be set to achieve the effect of thermal infrared camouflage. There should be no obstructions within 20 meters of the exhaust outlet of the jet-type thermal infrared camouflage device 9 and within 30° around the axis.

[0038] The underground power station smoke elimination and cooling thermal infrared camouflage system of this embodiment purifies the black smoke discharged by the diesel generator to achieve the goal of visible light camouflage; uses the waste heat of the power station for heating at the end of the underground project, shortens the warm-up time of the diesel generator in the low temperature season, improves efficiency, and saves energy; reduces the visible light and thermal infrared camouflage exposure symptoms of smoke exhaust through smoke elimination and cooling measures, is simple and effective to use, and operates stably and reliably; implements effective thermal infrared camouflage of exhaust smoke through the jet-type thermal infrared camouflage device, is simple and effective to use, and operates stably and reliably. It not only effectively solves the problem of smoke elimination and cooling thermal infrared camouflage, but also makes full use of waste heat, reduces project costs, improves the efficiency of cold machine startup, improves the overall cost-effectiveness, and realizes the comprehensive needs of energy saving and camouflage of protective engineering power stations.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A thermal infrared camouflage system for smoke elimination and temperature reduction in underground power stations, characterized in that: include: Smoke exhaust duct, smoke exhaust main pipe, black smoke purifier, steam-water heat exchanger and heater; The underground power station has a diesel generator, and the smoke exhaust branch pipes of the diesel generator are all connected to the smoke exhaust main pipe, and the smoke exhaust main pipe is connected to the inlet end of the smoke exhaust channel, and the outlet end of the smoke exhaust channel is connected to the outside world. The steam-water heat exchanger and the black smoke purifier are correspondingly installed on the smoke exhaust branch pipes of each diesel generator. The steam-water heat exchanger is arranged close to the diesel generator so that the high-temperature hot smoke of the diesel generator can be discharged from the smoke exhaust channel after heat exchange by the steam-water heat exchanger and purified by the black smoke purifier. The hot water outlet end of the steam-water heat exchanger is respectively connected to the water inlet end of the heater and the end heat equipment of the water and heating points in the protection project, and the exhaust end of the heater is connected to the air inlet end of the diesel generator to provide warm air to the diesel generator.

2. The underground power station smoke elimination and temperature reduction thermal infrared camouflage system according to claim 1 is characterized by: It also includes a thermostat, which is installed on the pipeline of the water jacket of the steam-water heat exchanger and is used to adjust the water flow through temperature monitoring.

3. The underground power station smoke elimination and temperature reduction thermal infrared camouflage system according to claim 1 is characterized by: It also includes a device camouflage room, which is arranged at the exit end of the smoke exhaust passage.

4. The underground power station smoke elimination and temperature reduction thermal infrared camouflage system according to claim 3 is characterized by: The equipment camouflage room is arranged as a wall facing the air near the smoke exhaust passage to resist shock waves and strengthen engineering protection.

5. The underground power station smoke elimination and temperature reduction thermal infrared camouflage system according to claim 1 is characterized by: It also includes a jet-type thermal infrared camouflage device, which is installed in an equipment camouflage room to perform thermal infrared camouflage treatment on the smoke discharged from the smoke exhaust channel.

6. The underground power station smoke elimination and temperature reduction thermal infrared camouflage system according to claim 1 is characterized by: It also includes a wave-breaking diffusion chamber, which is located in the smoke exhaust channel. The smoke exhausted from the smoke exhaust main pipe enters the smoke exhaust channel after being diffused by the wave-breaking diffusion chamber.

7. The underground power station smoke elimination and temperature reduction thermal infrared camouflage system according to claim 1 is characterized by: It also includes a muffler, which is installed on the smoke exhaust branch pipe of each group of diesel generators.

8. The underground power station smoke elimination and temperature reduction thermal infrared camouflage system according to claim 1 is characterized by: The terminal heat-using equipment includes one or more of a terminal radiator, a water heater, a hot water tap and a fan coil unit, which are used for domestic water supply and heating in the project.

9. The underground power station smoke elimination and temperature reduction thermal infrared camouflage system according to claim 1 is characterized by: The smoke exhaust channel is lined.

10. The thermal infrared camouflage system for smoke elimination and temperature reduction of underground power stations according to any one of claims 1 to 9, characterized in that: The camouflage system is located indoors or inside a mountain.

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