Exhaust system of diesel generator room under emergency working condition

Abstract

The utility model discloses a diesel generator room exhaust system under emergency working conditions, which comprises an underground machine room, and an air inlet shaft, an air outlet shaft, an air inlet shutter, an active carbon fiber filter screen, a fuel generator, an electric energy storage terminal and a tail gas purification device are arranged in the machine room. The outer side of the air inlet shaft is provided with a side wall opening, an air inlet shutter is arranged at the opening end of the outer side of the air inlet shaft, and an activated carbon fiber filter screen is arranged at a port of the inner side of the air inlet shaft. A side wall opening is formed in the outer side of the air outlet shaft, an air outlet shutter is arranged at the opening end of the outer side of the air outlet shaft, and an activated carbon fiber filter screen and a tail gas pipe are arranged at a port of the inner side of the air outlet shaft; a fuel generator and an electric energy storage terminal are arranged in the machine room; a tail gas purifying device is arranged at the tail gas end of the fuel generator; the tail gas pipe penetrates through the tail gas purification device and then extends to a port on the inner side of the air outlet shaft; a dry filter material module and an SCR catalyst module are arranged in the tail gas purification device.

Description

Technical Field

[0001] This utility model relates to the field of ventilation equipment, and in particular to a diesel generator room ventilation system for emergency conditions. Background Technology

[0002] In some industrial production sites, a temporary power outage can cause significant damage to processes and products. For example, in the fiberglass winding process, if there is a temporary power outage, the automatic winding machine will stop conveying fibers and resin, causing damage to the semi-finished products on the steel mold and solidification inside the resin hopper, resulting in economic and labor losses when restarting the winding machine.

[0003] To avoid the above problems, auxiliary power generation equipment is usually provided for the production lines. These auxiliary generators are usually located in the basement, and their machine rooms are generally divided into several parts, such as oil storage rooms, equipment rooms, and tool rooms. When the generators in the equipment rooms start up, the noise and exhaust fumes generated by the diesel or gasoline engines are quite serious. In order to meet reasonable emission standards, they must be weakened to reduce the negative impact on the external environment.

[0004] The above-mentioned treatment process usually deals with noise and exhaust gas. There is no dedicated equipment for noise reduction or exhaust gas treatment in the existing technology. If the exhaust gas treatment equipment in the existing technology is copied, it cannot be directly applied. As people skilled in the art, we urgently need to design a diesel generator room exhaust system for emergency conditions to overcome the shortcomings of the existing technology. Utility Model Content

[0005] To overcome the shortcomings of existing technology, this utility model provides a diesel generator room exhaust system for emergency conditions. It uses an air intake and exhaust device installed on the ground, multiple filtration devices installed at the ventilation end, and an internal device for treating the exhaust gas of diesel or gasoline engines to thoroughly reduce noise and remove dust from exhaust gas.

[0006] The technical solution adopted by this utility model to solve its technical problem is:

[0007] An emergency diesel generator room exhaust system includes an underground generator room, which is equipped with an air intake shaft, an air outlet shaft, air intake louvers, an activated carbon fiber filter, a fuel generator, an electrical energy storage terminal, and an exhaust gas purification device.

[0008] The outer side of the air intake shaft has a side wall opening, and an air intake louver is provided at the outer opening end. An activated carbon fiber filter is provided at the inner port of the air intake shaft.

[0009] The outer side of the air outlet shaft is open, and an air outlet louver is provided at the outer opening end. An activated carbon fiber filter and an exhaust pipe are provided at the inner port of the air outlet shaft.

[0010] The machine room is equipped with a fuel generator and an energy storage terminal; the exhaust gas end of the fuel generator is equipped with an exhaust gas purification device; the exhaust pipe passes through the exhaust gas purification device and extends to the inner port of the exhaust shaft; the exhaust gas purification device is equipped with a dry filter media module and an SCR catalyst module.

[0011] The exhaust gas purification device includes a purification chamber, a hot smoke inlet on the purification chamber, a dry filter module behind the hot smoke inlet, an SCR catalyst module behind the dry filter module, a fan and a hot smoke outlet behind the SCR catalyst module; inside the purification chamber, a bypass pipe is connected to the front of the dry filter module and the rear of the SCR catalyst module, and a bypass valve is installed on the bypass pipe.

[0012] The exhaust gas purification device is equipped with a high-temperature pressure sensor, which is connected to an external control system.

[0013] A sealing plate is hinged at the air inlet of the bypass pipe. A pulling member or a support member is connected to the sealing plate. A fuse switch is provided on the pulling member or support member. When the fuse switch breaks, the pulling member or support member fails, thereby opening the sealing plate.

[0014] The inner side of the hot smoke inlet is provided with a distribution plate, the distribution plate is provided with an outer fixed frame, and the distribution plate is provided with distribution holes.

[0015] The side of the air intake shaft is provided with slotted holes, which are located at the upper part of 1 / 2 height of the air intake shaft. The slotted holes and the activated carbon fiber filter screen together bear the ventilation volume in the machine room.

[0016] The beneficial effects of this utility model with the above structure are described as follows: This utility model can quickly provide power to industrial equipment and minimize environmental pollution; in the non-power generation state, airflow is used for ventilation through the air inlet and outlet shafts; during power generation, the airflow flows upward under the influence of the temperature gradient, and the airflow in the outlet shaft has a greater upward velocity than that in the air inlet shaft due to the "chimney effect," which can effectively remove heat from the machine room and maintain the temperature inside the machine room within a normal range. This utility model has a novel structural design and can be specifically used in underground generator rooms. It has good ventilation and noise reduction effects, is highly practical, and is suitable for widespread promotion. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the generator in a stopped state.

[0018] Figure 2 This is a schematic diagram of the generator's power generation status;

[0019] Figure 3 This is a schematic diagram of the internal structure of the exhaust gas purification device.

[0020] Figure 4 This is a schematic diagram of a uniformly distributed plate structure;

[0021] Figure 5 Schematic diagram of the sealing plate fixing structure;

[0022] In the attached diagram: 1. Basement foundation; 2. Ground; 3. Machine room; 4. Air intake shaft; 41. Activated carbon fiber filter; 42. Air intake louver; 43. Slit hole; 5. Air outlet shaft; 51. Air outlet louver; 6. Diesel generator; 61. Exhaust pipe; 7. Exhaust gas purification device; 70. Purification chamber; 71. Hot smoke inlet; 710. Distribution plate; 711. Distribution hole; 712. External fixing frame; 72. Support frame; 73. High temperature pressure sensor; 74. Dry filter module; 75. SCR catalyst module; 76. Bypass pipe; 761. Hinge; 77. Fan; 78. Drain hole; 8. Energy storage terminal; 9. Sealing plate; 91. Fuse switch. Detailed Implementation

[0023] The present invention will be described in detail below through specific embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. However, it should be noted that the specific embodiments described below do not limit the technical solution. Those skilled in the art can make further technical extensions under the guidance of the following technical solutions. The scope of protection of this patent application is determined by the claims.

[0024] Example 1: As Figure 1 The diagram illustrates an emergency diesel generator room ventilation system, comprising an underground generator room 3, which can be understood as a basement. A diesel generator 6 and an energy storage terminal 8 are mounted on the basement foundation 1. The energy storage terminal 8 is used for energy storage. The top of the basement is the ground level 2.

[0025] An air intake shaft 4 and an air outlet shaft 5 are vertically installed on the ground, connecting the machine room 3 to the outside. The outer side of the air intake shaft 4 has a side wall opening, and an air intake louver 42 is installed at the outer opening end. An activated carbon fiber filter 41 is installed at the inner port of the air intake shaft 4. The activated carbon fiber filter 41 can adsorb and purify the air. The activated carbon fiber filter is about 0.5 meters away from the ground.

[0026] The outer side of the air outlet shaft 5 is provided with a side wall opening, and an air outlet louver 51 is provided at the outer opening end. An activated carbon fiber filter 41 and an exhaust pipe 61 are provided at the inner port of the air outlet shaft. By providing side wall openings on the outer sides of the air inlet shaft 4 and the air outlet shaft 5 and respectively providing air inlet louvers 42 and air outlet louvers 51, the louvers are rainproof louvers. Those skilled in the art can also install insect-proof nets on the inner side of the louvers to prevent insects, snakes and rats from entering.

[0027] An exhaust gas purification device 7 is installed at the exhaust end of the diesel generator 6; the exhaust pipe 61 extends through the exhaust gas purification device 7 to the inner port of the exhaust shaft 5; the exhaust gas purification device 7 includes a purification chamber 70, a hot smoke inlet 71 is installed on the purification chamber 70, a dry filter module 74 is installed behind the hot smoke inlet 71, an SCR catalyst module 75 is installed behind the dry filter module 74, a fan 77 and a hot smoke outlet are installed behind the SCR catalyst module 75; inside the purification chamber 70, a bypass pipe 76 is installed connecting the front of the dry filter module 74 and the rear of the SCR catalyst module 74, and a bypass valve is installed on the bypass pipe 76. The exterior of the exhaust gas purification device 7 is covered with heat-insulating material to prevent external high temperatures from affecting the internal function.

[0028] In this embodiment, a self-made, relatively simple, purely mechanical bypass valve is used, the specific structure of which is described below: Figure 5 As shown, a blocking plate 9 is hinged to the air inlet of the bypass pipe 76 via a hinge 761. A pulling member is connected to the blocking plate 9, and a fuse 91 is provided on the pulling member as a fuse switch. When the fuse switch breaks, the pulling member fails, thereby opening the blocking plate 9.

[0029] The exhaust gas purification device 7 is provided with a support frame 72 on the outside, which supports and fixes the high temperature pressure sensor 73. The high temperature pressure sensor 73 is connected to an external control system.

[0030] Furthermore, an equalization plate 710 is provided on the inner side of the hot smoke inlet 71, and an outer fixing frame 712 is provided on the equalization plate 710. The equalization plate 712 has equalization holes 711 inside. The equalization plate can evenly distribute the airflow and prevent it from being concentrated and blown into the fan 77.

[0031] Example 2: When this utility model is used, its purpose is to quickly provide power to industrial equipment during a power outage and minimize environmental pollution.

[0032] Exhaust ventilation in non-power generation state: When the diesel generator 6 is in a stopped state, there is no hot airflow generated inside the engine room 3. The airflow can be organized through the air intake shaft 4, the air outlet shaft 5 and the slot hole 4 for ventilation.

[0033] Exhaust ventilation during power generation: After starting the diesel generator 6, the exhaust pipe 61 guides the exhaust gas to the exhaust gas purification device 7. The exhaust gas purification device 7 is activated, and after purification, the exhaust gas is discharged outdoors through the exhaust shaft 5. The diesel generator 6 generates heat upon startup. Due to the temperature gradient, the airflow rises. Because of the exhaust pipe 61 within the exhaust shaft 5, the airflow in the exhaust shaft 5 experiences a greater upward velocity than the airflow in the intake shaft 4 due to the "chimney effect." Furthermore, since one end of the intake shaft 4 is lower than the ground, its temperature is lower than that of the exhaust shaft 5, also creating airflow organization. Thus, after the diesel generator 6 has been running for a period of time, an airflow organization gradually forms, with air entering through the intake shaft 4 and exiting through the exhaust shaft 5, expelling heat from inside the generator room 3 and maintaining the temperature inside the generator room 3 within a normal range. After the diesel generator 6 is running normally, the output electrical energy is also connected to the battery pack of the energy storage terminal 8 (the battery pack consists of multiple battery cells).

[0034] It should be noted that when installing the air intake shaft 4 and the air outlet shaft 5, rainproof louvers and insect screens are installed on one side of each shaft, and the other end extends into the machine room 3, with an activated carbon fiber filter 41 installed at the port (activated carbon can adsorb and purify the air). The activated carbon fiber filter 41 is about 0.5 meters above the ground. Furthermore, the length of the air intake shaft 4 is greater than 1 meter, and a slotted hole 43 is installed on the air intake shaft 4 at a distance of 0.2 meters from the top of the machine room. The area of ​​the slotted hole 43 is about 1 / 5 of the cross-sectional area of ​​the activated carbon fiber filter 41. That is, the slotted hole 43 and the activated carbon fiber filter 41 share the ventilation airflow, but their functions are different. The slotted hole 43 mainly handles the upper part of the hot airflow, while the activated carbon fiber filter 41 mainly handles the lower part of the hot airflow, ensuring that the airflow formed by the cold air outside can completely exhaust the hot air inside the machine room.

[0035] This utility model has a novel structural design and can be used in underground generator rooms. It has good ventilation and noise reduction effects, is highly practical, and is suitable for widespread promotion.

Claims

1. A diesel generator room exhaust system for emergency operation, characterized in that: It includes an underground machine room, which is equipped with an air intake shaft, an air outlet shaft, air intake louvers, activated carbon fiber filters, a fuel generator, an energy storage terminal, and an exhaust gas purification device. The outer side of the air intake shaft has a side wall opening, and an air intake louver is provided at the outer opening end. An activated carbon fiber filter is provided at the inner port of the air intake shaft. The outer side of the air outlet shaft is open, and an air outlet louver is provided at the outer opening end. An activated carbon fiber filter and an exhaust pipe are provided at the inner port of the air outlet shaft. The machine room is equipped with a fuel generator and an energy storage terminal; the exhaust gas end of the fuel generator is equipped with an exhaust gas purification device; the exhaust pipe passes through the exhaust gas purification device and extends to the inner port of the exhaust shaft; the exhaust gas purification device is equipped with a dry filter media module and an SCR catalyst module.

2. The diesel generator room exhaust system under emergency conditions as described in claim 1, characterized in that: The exhaust gas purification device includes a purification chamber, a hot smoke inlet on the purification chamber, a dry filter module behind the hot smoke inlet, an SCR catalyst module behind the dry filter module, a fan and a hot smoke outlet behind the SCR catalyst module; inside the purification chamber, a bypass pipe is connected to the front of the dry filter module and the rear of the SCR catalyst module, and a bypass valve is installed on the bypass pipe.

3. The diesel generator room exhaust system under emergency conditions as described in claim 1, characterized in that: A high-temperature pressure sensor is installed outside the exhaust gas purification device.

4. The diesel generator room exhaust system under emergency conditions as described in claim 2, characterized in that: A sealing plate is hinged at the air inlet of the bypass pipe, and a pulling member or a support member is connected to the sealing plate. A fuse switch is installed on the pulling member or the support member.

5. The diesel generator room exhaust system under emergency conditions as described in claim 2, characterized in that: The inner side of the hot smoke inlet is provided with a distribution plate, and the distribution plate is provided with distribution holes.

6. The diesel generator room exhaust system under emergency conditions as described in claim 1, characterized in that: The side of the air intake shaft is provided with a slotted hole, which is located at the upper part of 1 / 2 height of the air intake shaft.

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