CN212177446U - Negative pressure exhaust system - Google Patents
Negative pressure exhaust system Download PDFInfo
- Publication number
- CN212177446U CN212177446U CN202020759421.3U CN202020759421U CN212177446U CN 212177446 U CN212177446 U CN 212177446U CN 202020759421 U CN202020759421 U CN 202020759421U CN 212177446 U CN212177446 U CN 212177446U
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- air
- centrifugal fan
- casing
- gas
- workshop
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Abstract
The utility model discloses a negative pressure exhaust system, including casing, centrifugal fan and play wind cover, centrifugal fan sets up inside the casing, the opening has been seted up to the casing bottom surface, centrifugal fan is fixed in the opening top, it locates the centrifugal fan outside to go out the wind cover, it has seted up the air-out passageway to go out the wind cover side, air-out passageway one end extends to the casing side, it is equipped with a plurality of heating coil to go out wind cover and air-out passageway surface, the heating coil laminating is fixed in a wind cover and air-out passageway surface. The utility model provides a negative pressure exhaust system can take out the gas in the workshop, can also carry out ozone treatment to the gas of taking out simultaneously to reach and to discharge external standard.
Description
Technical Field
The utility model relates to a ventilation system technical field especially relates to a negative pressure exhaust system.
Background
During processing in current workshop production, all can adopt negative-pressure air fan to carry out the circulation of air to workshop inside, with in the workshop sultry gas outside the rapid forced discharge, from door and window or other air intakes again, with in the external fresh air suction workshop, play the air and circulate better purpose, improve the not good condition of ventilation effect to can also through fresh air suction workshop after, play the effect of cooling to workshop inside.
However, in some special production plants, ozone may be present due to the presence of some special gases inside the plant, such as in the LDA line. This also results in that when carrying out the gas exchange to workshop inside, can't directly discharge the gas in the workshop to the external world, easily cause the pollution to the external world, need handle the ozone in the workshop, make the air in the workshop discharge the standard of external world.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a negative pressure exhaust system can take out the gas in the workshop, can also carry out ozone treatment to the gas of taking out simultaneously to reach and to discharge external standard.
The utility model discloses a technical scheme that negative pressure exhaust system adopted is:
the utility model provides a negative pressure exhaust system, includes casing, centrifugal fan and goes out the fan housing, centrifugal fan sets up inside the casing, the opening has been seted up to the casing bottom surface, centrifugal fan is fixed in the opening top, it locates the centrifugal fan outside to go out the fan housing, it has seted up the air-out passageway to go out fan housing side, air-out passageway one end extends to the casing side, it is equipped with a plurality of heating coil to go out fan housing and air-out passageway surface, the heating coil laminating is fixed in out fan housing and air-out passageway surface.
As the preferred scheme, the opening part of the shell is fixedly provided with an air inlet barrier.
As a preferred scheme, a heat-insulating layer is filled between the shell and the air outlet cover and is made of heat-insulating materials.
As a preferred scheme, a heating net is further arranged inside the air outlet channel, and the heating net is heated by resistance wires.
Preferably, a plurality of the heating coils are arranged at equal intervals.
The utility model discloses a negative pressure exhaust system's beneficial effect is: people are installing when using, set up the casing in the workshop top, inside the opening part orientation workshop with the casing, through centrifugal fan with the inside gas suction in workshop go out fan housing and air-out passageway, discharge gas through the air-out pipeline, play the purpose of carrying out gas exchange to the workshop inside, when in-service use, can communicate air-out passageway and the holistic exhaust system in workshop to play and carry out gas exchange better, reach the purpose of cooling. And heating coils are arranged on the surfaces of the air outlet cover and the air outlet channel, and heat is transferred to the air outlet cover and the air outlet channel in a heat conduction mode. When gas in the workshop is inhaled by centrifugal fan and goes out the wind cover and the air-out passageway is inside, the temperature of going out wind cover and air-out pipeline is higher, and gas contacts with going out wind cover and air-out pipeline to rising gaseous temperature can accelerate ozone in the gas to carry out the reduction, reduces ozone's content in the gas into oxygen, reduces the content of ozone in the gas, thereby makes the ozone content that the workshop discharged external gas accord with emission standard, avoids causing harm to the environment.
Drawings
Fig. 1 is a schematic structural view of the negative pressure ventilation system of the present invention.
Detailed Description
The invention will be further elucidated and described with reference to the following embodiments and drawings in which:
referring to fig. 1, a negative pressure ventilation system includes a housing 10, a centrifugal fan 11 and an air outlet cover 12, wherein the centrifugal fan 11 is disposed inside the housing 10, an opening is formed in a bottom surface of the housing 10, the centrifugal fan 11 is fixed above the opening, the air outlet cover 12 covers the outside of the centrifugal fan 11, an air outlet channel 13 is formed in a side surface of the air outlet cover 12, and one end of the air outlet channel 13 extends to a side surface of the housing 10.
People are when installing the use, set up casing 10 in the workshop top, inside the opening part orientation workshop with casing 10, through centrifugal fan 11 with the inside gas suction in workshop go out fan housing 12 and air-out passageway 13, discharge gas through the air-out pipeline, play the inside purpose of carrying out gas exchange in workshop, when in-service use, can communicate air-out passageway 13 and the holistic exhaust system in workshop, thereby play and carry out gas exchange better, reach the purpose of cooling.
The surfaces of the air outlet cover 12 and the air outlet channel 13 are provided with a plurality of heating coils 14, the heating coils 14 are attached to the surfaces of the air outlet cover 12 and the air outlet channel 13, and the heating coils 14 are arranged at equal intervals.
An air inlet barrier 15 is fixedly arranged at an opening of the shell 10, and partial impurities can be blocked from entering the centrifugal fan 11 through the air inlet barrier 15, so that the work of the centrifugal fan 11 is influenced, and the condition that the air outlet channel 13 is blocked is avoided.
The surfaces of the air outlet cover 12 and the air outlet channel 13 are provided with heating coils 14, and heat is transferred to the air outlet cover 12 and the air outlet channel 13 in a heat conduction mode. When gas in the workshop is inhaled by centrifugal fan 11 and goes out inside wind cover 12 and air-out passageway 13, the temperature of going out wind cover 12 and air-out pipeline is higher, and gas contacts with a wind cover 12 and air-out pipeline to the temperature of rising gas can accelerate ozone in the gas to carry out the reduction, reduces ozone reduction into oxygen, reduces the content of ozone in the gas, thereby makes the ozone content that the workshop discharged external gas accord with emission standard, avoids causing harm to the environment.
In the above scheme, the heat insulating layer 16 is filled between the shell 10 and the air outlet cover 12, and the heat insulating layer 16 is made of heat insulating materials. The heat insulating layer 16 can prevent the heat generated by the heating coil 14 from being lost too fast, so that the heat cannot be effectively utilized, the temperature of the air outlet cover 12 and the air outlet channel 13 reaches the required temperature, and the ozone is effectively decomposed.
And still be equipped with heating network 17 in air-out passageway 13 inside, heating network 17 adopts the resistance wire to heat, utilizes heating network 17 to filter the heating through the gas of air-out passageway 13, further decomposes ozone in the gas, avoids having remaining ozone in the gas, discharges in the external world.
The utility model provides a negative pressure exhaust system, people are when installing the use, set up the casing in the workshop top, inside the opening part orientation workshop of casing, through centrifugal fan with the inside gas suction in workshop go out fan housing and air-out passageway, through air-out pipeline with gas outgoing, play the purpose of carrying out gas exchange to the workshop inside, when in-service use, can communicate air-out passageway and the holistic exhaust system in workshop, thereby play and carry out gas exchange better, reach the purpose of cooling. And heating coils are arranged on the surfaces of the air outlet cover and the air outlet channel, and heat is transferred to the air outlet cover and the air outlet channel in a heat conduction mode. When gas in the workshop is inhaled by centrifugal fan and goes out the wind cover and the air-out passageway is inside, the temperature of going out wind cover and air-out pipeline is higher, and gas contacts with going out wind cover and air-out pipeline to rising gaseous temperature can accelerate ozone in the gas to carry out the reduction, reduces ozone's content in the gas into oxygen, reduces the content of ozone in the gas, thereby makes the ozone content that the workshop discharged external gas accord with emission standard, avoids causing harm to the environment.
It should be finally noted that the above embodiments are only intended to illustrate the technical solutions of the present invention, and not to limit the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention.
Claims (5)
1. The utility model provides a negative pressure exhaust system, its characterized in that, includes casing, centrifugal fan and goes out the fan housing, centrifugal fan sets up inside the casing, the opening has been seted up to the casing bottom surface, centrifugal fan is fixed in the opening top, it locates the centrifugal fan outside to go out the fan housing, it has seted up the air-out passageway to go out the fan housing side, air-out passageway one end extends to the casing side, it is equipped with a plurality of heating coil to go out fan housing and air-out passageway surface, the heating coil laminating is fixed in a fan housing and air-out passageway surface.
2. The negative-pressure air draft system according to claim 1, wherein an air inlet barrier is fixedly arranged at the opening of the shell.
3. The negative-pressure air draft system according to claim 2, wherein a heat insulation layer is filled between the shell and the air outlet cover, and the heat insulation layer is made of a heat insulation material.
4. The negative-pressure air draft system as claimed in claim 1, wherein a heating net is further arranged inside the air outlet channel, and the heating net is heated by adopting a resistance wire.
5. The negative pressure draft system, according to any one of claims 1 to 4, wherein a plurality of the heating coils are arranged at equal intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020759421.3U CN212177446U (en) | 2020-05-11 | 2020-05-11 | Negative pressure exhaust system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020759421.3U CN212177446U (en) | 2020-05-11 | 2020-05-11 | Negative pressure exhaust system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212177446U true CN212177446U (en) | 2020-12-18 |
Family
ID=73776178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020759421.3U Active CN212177446U (en) | 2020-05-11 | 2020-05-11 | Negative pressure exhaust system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212177446U (en) |
-
2020
- 2020-05-11 CN CN202020759421.3U patent/CN212177446U/en active Active
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