Positive pressure air supply structure for transition room of household garbage incineration power plant
By designing pressurized air supply, air replenishment and exhaust systems in the transition room of the domestic waste incineration power plant, the problems of odor diffusion and odor dilution are solved, and positive pressure maintenance and air quality improvement in the transition room are achieved. .
Patent Information
- Application Number
- CN202421375230.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-17
- Publication Date
- 2025-02-25
- Estimated Expiration
- 2034-06-17
AI Technical Summary
The prior art is difficult to effectively prevent the spread of odor in the transitional rooms of domestic waste incineration power plants, and it is impossible to effectively dilute the residual odor on passers-by, causing the odor to spread from the transitional rooms to walkways and other rooms.
A positive pressure air supply structure including a pressurized air supply system, a replenishment system and an exhaust system is designed. Air supply outlets are set up in the transition room, air replenishment systems are set up to the walkway, and exhaust systems are set up to the unloading hall. These systems are used to achieve positive pressure maintenance and air ventilation dilution in the transition room.
Effectively maintain the positive pressure state of the transitional room to prevent the odor from spreading from the transitional room to the walkway and other rooms. At the same time, by diluting the odor on the passers-by, the air quality and the comfort of the passers-by are improved.
Smart Images
Figure CN222527853U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a positive pressure air supply structure in a transition room of a domestic garbage incineration power plant. Background Art
[0002] See also Figure 1~2 In a domestic waste power plant, a transition room is usually set between the garbage unloading hall 1 or garbage pool room with high odor concentration and the corridor 3 leading to the control room, office, etc. There are currently two examples of anti-odor diffusion measures in transition rooms and their existing problems:
[0003] 1. See Figure 1 , set up a positive pressure air supply system, including air inlet 8 arranged in the corridor 3 leading to the control room, office and other rooms, as well as pressurized air supply fan 7 and air outlet 9 arranged in the transition room 2 and other air supply ducts and accessories. When the passers-by walk from the unloading hall 1 to the transition room 2, when the entrance 5 of the transition room 2 is opened, turn on this positive pressure air supply system, extract air from the corridor 3, and supply air to the transition room 2 to maintain the air pressure of the transition room 2 higher than the pressure of the unloading hall 1. When the entrance 5 is opened, maintain a certain wind speed to flow to the unloading hall 1, which can prevent the odor of the unloading hall 1 from spreading to the transition room 2 to a certain extent. As the passers-by walk, a small amount of odor will also be carried to the transition room 2. The existing problems are:
[0004] 1. Due to the exhaust of the pressurized blower 7 in the corridor 3, the corridor 3 may be under negative pressure, and even the air pressure in the transition room 2 may be higher than that in the corridor 3, resulting in a certain concentration of odor in the transition room 2 diffusing from the transition room 2 to the corridor 3 under the action of the pressure difference.
[0005] 2. Since the pressurized blower 7 draws air in the corridor 3, negative pressure may be caused in the corridor 3, and polluted air from other rooms connected to the corridor 3 with odor or other polluted air may spread into the corridor 3, and then spread to the connected control room, office and other rooms through the corridor 3.
[0006] 3. When the passers-by walk through the transition room 2, it is impossible to dilute the residual odor on their bodies and clothes, and this part of the odor will eventually be brought into the corridor 3 and rooms such as the control room and office.
[0007] 4. When the passerby walks from the transition room 2 to the corridor 3, the door 6 is opened. At this time, in order to prevent the positive pressure of the transition room 2 from being greater than that of the corridor 3, the pressurized air blower 7 needs to be stopped. Since the pressure difference between the corridor 3 and the transition room 2 is very small (generally in the range of 0 Pa ~5Pa), sufficient wind speed cannot be formed at the opening of the door 6, and thus it is impossible to control the diffusion of a certain concentration of odor in the transition room 2 into the corridor 3.
[0008] 2. See Figure 2, an air shower device is set in the transition room 2. When the passerby enters the transition room 2 from the unloading hall 1, the air shower device 19 is turned on. The air shower device 19 includes a set of devices such as an air shower air supply port 20 and an air shower return port 21. The air shower device 19 is used to blow out the odor on the passerby. The existing problems are:
[0009] 1. When the passerby walks from the unloading hall 1 to the transition room 2 and opens the door 5, the air shower device 19 cannot establish a positive pressure system, and it is also impossible to prevent the odor in the unloading hall 1 from spreading into the transition room 2.
[0010] 2. Although the air shower device 19 can blow out the odor from the passers-by, since the air circulates in the transition room 2, the blown-out odor is sucked into the air shower device 19 by the air shower return port 20 of the air shower device 19 and blown out again. The odor concentration in the transition room 2 will become higher and higher, and it cannot be discharged to the outside, and eventually the function of diluting the odor is lost.
[0011] 3. The air shower device 19 blows out the odor from the passers-by and retains it in the transition room 2. If the door 6 of the transition room 2 is opened, or if a sufficient pressure difference cannot be established between the corridor 3 and the transition room 2, the odor from the transition room 2 will diffuse into the corridor 3. Utility Model Content
[0012] The purpose of the utility model is to overcome the above-mentioned deficiencies in the prior art and to provide a positive pressure air supply structure in the transition room of a domestic waste incineration power plant with a rational structural design, which can maintain a stable pressure in the transition room and perform ventilation to prevent odor and dilute residual odor on passers-by.
[0013] The technical solution adopted by the utility model to solve the above-mentioned problems is: a positive pressure air supply structure in the transition room of a domestic waste incineration power plant, in which a transition room is arranged between the garbage unloading hall or the garbage pool room and the corridors leading to each room; the positive pressure air supply structure includes a pressurized air supply system, and the pressurized air supply system includes an air supply inlet, a pressurized air supply fan and an air supply outlet; the air supply inlet is arranged in the corridor, the air supply outlet is arranged in the transition room, the air supply inlet is connected to the inlet of the pressurized air supply fan, and the outlet of the pressurized air supply fan is connected to the air supply outlet The positive pressure air supply structure also includes an air supply system and an exhaust system; the air supply system includes an air supply inlet, an air supply fan and an air supply outlet; the air supply inlet is arranged outdoors, the air supply outlet is arranged in the walkway, the air supply inlet is connected to the inlet of the air supply fan, and the outlet of the air supply fan is connected to the air supply outlet; the exhaust system includes an exhaust inlet, an exhaust fan and an exhaust outlet; the exhaust inlet is arranged in the transition room, the exhaust outlet is arranged in the unloading hall, the exhaust inlet is connected to the inlet of the exhaust fan, and the outlet of the exhaust fan is connected to the exhaust outlet.
[0014] The air supply outlet of the utility model is arranged at the top of the transition room and is set downward.
[0015] The air supply outlet of the utility model is arranged at the side wall of the transition room and is horizontally arranged toward the middle of the transition room.
[0016] The air supply system described in the utility model is arranged at the end of the walkway away from the transition room.
[0017] Compared with the prior art, the utility model has the following advantages and effects:
[0018] 1. Due to the setting of the air makeup system, when the positive pressure air supply system is running, the corridor will not cause too low pressure or even negative pressure due to the exhaust of the blower, and will not destroy the positive pressure state of the corridor. The positive pressure of the corridor prevents the polluted air including odor from the transition room and other rooms from spreading to the corridor.
[0019] 2. Blowing clean air with suitable temperature onto the passers-by not only has the effect of an air shower room, diluting the residual odor on the passers-by's bodies and clothes, but also improves the comfort of the air shower of the positive pressure air supply device; and the air blown out of the air shower is discharged from the transition room in time, diluting the concentration of odor in the transition room.
[0020] 3. When the passers-by enter the transition room from the unloading hall through the entrance, turn on the air supply system and the air makeup system, and stop the exhaust system, which can maintain the positive pressure in the transition room and maintain the air flow in the transition room to the unloading hall, thereby preventing the odor in the unloading hall from spreading to the transition room.
[0021] 4. Since the air supply system and exhaust system are installed in the transition room, sufficient ventilation can be carried out to dilute the odor in the transition room, thereby controlling the spread of the odor in the transition room to the corridor.
[0022] 5. When the door of the transition room is opened, only the exhaust system is operated to make the air pressure in the transition room lower than the pressure in the corridor. At the same time, sufficient wind speed is generated when the door is opened to prevent a certain concentration of odor in the transition room from spreading to the corridor. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 This is a cross-sectional diagram of an example of a transition room odor diffusion prevention measure currently in use. Figure 1 ;
[0024] Figure 2 This is a cross-sectional diagram of an example of a transition room odor diffusion prevention measure currently in use. Figure 2 ;
[0025] Figure 3 The schematic diagram of the planar structure of the utility model embodiment applied in the domestic waste power plant Figure 1 ;
[0026] Figure 4 for Figure 3 Schematic diagram of the cross-sectional structure of AA;
[0027] Figure 5 The schematic diagram of the planar structure of the utility model embodiment applied in the domestic waste power plant Figure 2 ;
[0028] Figure 6 for Figure 5 The cross-sectional structure diagram of the utility model BB is shown in FIG. DETAILED DESCRIPTION
[0029] The present invention will be further described in detail below with reference to the accompanying drawings and through examples. The following examples are provided to explain the present invention, but the present invention is not limited to the following examples.
[0030] See also Figures 3 to 6 In a domestic waste incineration power plant, a transition room 2 is provided between a waste unloading hall 1 or a waste pool and a corridor 3 leading to a control room 23, an office 22 and other rooms, and measures to prevent the spread of odor are required in the transition room 2. The utility model includes a pressurized air supply system, an air supply system and an exhaust system.
[0031] The pressurized air supply system includes an air supply inlet 8, a pressurized air supply fan 7 and an air supply outlet 9; the air supply inlet 8 is arranged in the aisle 3, the air supply outlet 9 is arranged in the transition room 2, the air supply inlet 8 is connected to the inlet of the pressurized air supply fan 7, and the outlet of the pressurized air supply fan 7 is connected to the air supply outlet 9.
[0032] like Figures 5 and 6 As shown, the air outlet 9 is arranged at the top of the transition room 2 and is set downward to blow air from top to bottom; Figure 3~4 As shown, the air supply outlet 9 is arranged at the side wall of the transition room 2 and is horizontally arranged toward the middle of the transition room 2. Air is blown from the side toward the middle, and the formed air shower area 17 can play the role of an air shower room. By blowing air directly on the passers-by, the odor concentration on the passers-by and their clothes is diluted, and the air blown out of the air shower is discharged from the transition room in time, diluting the odor concentration in the transition room.
[0033] When the passerby opens the entrance door 5 of the transition room 2 from the unloading hall 1, the pressurized air supply system is turned on and the exhaust system is closed at the same time, so that air is extracted from the aisle 3, and the air with a cleaner temperature (generally cooled or heated by the air conditioner 16 or other refrigeration or heating equipment in the aisle 3) is sent into the transition room 2 after being pressurized by the pressurized air supply fan 7, thereby improving the comfort of the air shower.
[0034] An air supply system is arranged at the end of the corridor 3 away from the transition room 2, and the air supply system includes an air supply inlet 14, an air supply fan 13 and an air supply outlet 15; the air supply inlet 14 is arranged outdoors 4, and the air supply outlet 15 is arranged in the corridor 3, the air supply inlet 14 is connected to the inlet of the air supply fan 13, and the outlet of the air supply fan 13 is connected to the air supply outlet 15.
[0035] Air is drawn from the outside 4, and then pressurized by the air supply fan 13 before being sent into the corridor 3. After the outdoor air is supplied to the corridor 3, it is cooled or heated by the air conditioner 16 or other cooling or heating equipment in the corridor 3, and then sent into the transition room 2 through the pressurized delivery system. The temperature condition of this part of air is better than the temperature condition of the air directly supplied from the outside to the transition room 2, which improves the comfort of the people passing through the transition room 2. The air supply from the air supply fan 13 maintains the positive pressure value of the corridor 3, and the pressure of the corridor 3 is maintained higher than the pressure of the transition room 2, so as to prevent the odor in the transition room 2 from leaking into the corridor 3.
[0036] An exhaust system is arranged between the transition room 2 and the unloading hall 1, and the exhaust system includes an exhaust air inlet 11, an exhaust fan 10 and an exhaust air outlet 12; the exhaust air inlet 11 is arranged in the transition room 2, and the exhaust air outlet 12 is arranged in the unloading hall 1, the exhaust air inlet 11 is connected to the inlet of the exhaust fan 10, and the outlet of the exhaust fan 10 is connected to the exhaust air outlet 12.
[0037] Air is extracted from the transition room 2, and after being pressurized by the exhaust fan 10, the air in the transition room is discharged into the unloading hall 1. The exhaust system exhausts air to achieve sufficient ventilation times in the transition room 2 and dilute the concentration of odor in the transition room 2. The exhaust system exhausts air to maintain the pressure in the transition room 2 stable, so that the air pressure in the transition room 2 does not exceed the air pressure in the corridor 3, so as to avoid a certain concentration of odor in the transition room 2 from spreading to the corridor 3.
[0038] When a passerby opens the door 6 leading to the corridor 3 from the transition room 2, the supply air system and the supply air system are stopped, and only the exhaust air system is kept running, so that the air pressure in the transition room 2 is lower than the pressure in the corridor 3. At the same time, a sufficient wind speed is generated when the door 6 is opened, thereby preventing a certain concentration of odor in the transition room 2 from diffusing into the corridor 3.
[0039] When the passers-by walk out of the transition room 2 and enter the corridor 3, the air supply system, the air supply system and the exhaust system can continue to be turned on to further dilute the air in the transition room 2, so that the air quality in the transition room 2 can reach the best state.
[0040] In addition, it should be noted that the shapes and names of the parts and components of the specific embodiments described in this specification may be different, and the above content described in this specification is only an example of the structure of the utility model. All equivalent changes or simple changes made based on the structure, features and principles described in the patent concept of the utility model are included in the protection scope of the utility model patent. Technicians in the technical field of the utility model can make various modifications or supplements to the specific embodiments described or replace them in a similar manner, as long as they do not deviate from the structure of the utility model or exceed the scope defined by the claims, they should all fall within the protection scope of the utility model.
Claims
1. A positive pressure air supply structure in a transition room of a domestic waste incineration power plant, wherein a transition room is provided between a garbage unloading hall or a garbage pool and a corridor leading to each room; the positive pressure air supply structure comprises a pressurized air supply system, the pressurized air supply system comprises an air supply inlet, a pressurized air supply fan and an air supply outlet; the air supply inlet is arranged in the corridor, the air supply outlet is arranged in the transition room, the air supply inlet is connected to the inlet of the pressurized air supply fan, and the outlet of the pressurized air supply fan is connected to the air supply outlet; the characteristics are: The positive pressure air supply structure also includes an air supply system and an exhaust system; the air supply system includes an air supply inlet, an air supply fan and an air supply outlet; the air supply inlet is arranged outdoors, the air supply outlet is arranged in the aisle, the air supply inlet is connected to the inlet of the air supply fan, and the outlet of the air supply fan is connected to the air supply outlet; the exhaust system includes an exhaust inlet, an exhaust fan and an exhaust outlet; the exhaust inlet is arranged in the transition room, the exhaust outlet is arranged in the unloading hall, the exhaust inlet is connected to the inlet of the exhaust fan, and the outlet of the exhaust fan is connected to the exhaust outlet.
2. The positive pressure air supply structure of the transition room of the domestic waste incineration power plant according to claim 1 is characterized by: The air supply outlet is arranged at the top of the transition room and is set downward.
3. The positive pressure air supply structure of the transition room of the domestic waste incineration power plant according to claim 1 is characterized by: The air supply outlet is arranged at the side wall of the transition room and is horizontally arranged toward the middle of the transition room.
4. The positive pressure air supply structure of the transition room of the domestic waste incineration power plant according to claim 1 is characterized in that: The air supply system is arranged at the end of the walkway away from the transition room.