CN213020135U - Automatic pressure difference adjusting device for clean room - Google Patents
Automatic pressure difference adjusting device for clean room Download PDFInfo
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- CN213020135U CN213020135U CN202021241604.2U CN202021241604U CN213020135U CN 213020135 U CN213020135 U CN 213020135U CN 202021241604 U CN202021241604 U CN 202021241604U CN 213020135 U CN213020135 U CN 213020135U
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Abstract
The utility model discloses a toilet automatically regulated pressure differential device relates to a toilet technical field, including the toilet, air conditioning system, air intake system, exhaust system and return air system. An air inlet system, an air conditioning system, a flow guide grid and a pressure difference induction mechanism are installed at the top of the clean room respectively, a return air static pressure cavity is arranged inside one side of the clean room, a return air pipeline penetrates through the return air static pressure cavity, an air quantity control mechanism is installed inside the return air pipeline, an exhaust system is installed on one side, away from the return air static pressure cavity, of the clean room, a filter is installed on the air inlet system and the return air system respectively, and the pressure difference induction mechanism is connected with a central controller and can monitor a pressure difference value in real. The utility model has the advantages that: the numerical value monitored by the pressure difference sensor can be transmitted to the central processing unit through the PLC system, the pressure difference in the clean room is automatically adjusted, and the safe and stable operation of the clean room is ensured.
Description
Technical Field
The utility model relates to a toilet technical field, concretely relates to toilet automatically regulated pressure differential device.
Background
Electronics type, medicine type purification environment all need invariable temperature, take away indoor a large amount of heats and waste gas by air conditioning system, and along with air conditioning system's operation that lasts, the increase of air intake department dust and the change of air conditioner fan operating mode can lead to the pressure differential in the clean room to change, cause the pressure differential imbalance of toilet, influence the cleanliness factor of toilet, cause product particle and bacterium unqualified, make the toilet can not last steady operation. Therefore, the manual debugging is carried out by a professional at variable time, the pressure difference value is recorded by a worker every day in the manual debugging, and the authenticity of data cannot be verified.
Disclosure of Invention
In order to solve the above-mentioned disadvantages, the present invention provides a device for automatically adjusting pressure difference in a clean room.
In order to achieve the above object, the utility model adopts the following technical scheme: an automatic pressure difference adjusting device for a clean room, comprising: the air conditioner comprises a clean room, an air conditioner, an exhaust pipeline, an air inlet pipeline and a central controller, and further comprises a differential pressure sensing mechanism and a return air static pressure cavity, wherein an air quantity control mechanism and a return air pipeline are arranged in the return air static pressure cavity; the differential pressure sensing mechanism, the air volume control mechanism, the air conditioner and the air inlet and outlet pipeline are respectively electrically connected with the central controller.
The differential pressure sensing mechanism comprises a differential pressure sensor, a first differential pressure meter arranged indoors and a second differential pressure meter arranged outdoors, and the differential pressure sensor is connected with the first differential pressure meter and the second differential pressure meter through resistors respectively.
The air volume control mechanism comprises: the constant air volume valve, the second filter and the third filter are sequentially arranged at the inlet of the return air pipeline.
The air inlet port of the air inlet pipeline is located outdoors and is provided with a first filter and an auxiliary cleaning mechanism, and the air outlet port of the air inlet pipeline is provided with a flow guide grid and is located indoors and communicated with an air duct of an air conditioner.
The auxiliary cleaning mechanism is a fan and an electric air valve which are arranged on the inner side of the first filter, and the electric air valve penetrates through the interior of the air inlet pipeline and is electrically connected with the fan.
The filter is provided with a filter element and is positioned in the shell, and a filter screen is arranged between the filter element and the upper cover of the shell.
The filter element is a corrugated cotton core.
The air conditioner is installed on the inner wall at clean room top, return air static pressure chamber sets up on the one end lateral wall of clean room, the lateral wall upper portion that the clean room other end and return air static pressure chamber are relative is equipped with exhaust pipe, central controller installs the position of keeping away from air conditioner, return air static pressure chamber and exhaust pipe in the clean room.
The utility model has the advantages that:
1. the utility model discloses a set up the return air system, ensure to rectify pressure differential through central controller fast after the toilet pressure differential changes, guarantee the continuous operation of toilet safety and stability.
2. The utility model discloses an installation electronic blast gate and fan in air intake system, when electronic blast gate closed the air inlet system and with the intake stack upper wall connection, the fan started, blows away the dust of adhering to in air intake department, makes the air inlet system effectively move.
3. The utility model discloses set up the filter at air inlet system and return air system, be provided with the filter core in the filter, the filter core is the cotton core of ripple type, and increase filter area ensures the clean room cleanliness.
Drawings
FIG. 1 is a schematic view of the structure of the automatic differential pressure adjusting device of the present invention;
fig. 2 is a schematic perspective view of the filter of the present invention;
FIG. 3 is a schematic structural view of the differential pressure sensing mechanism of the present invention;
fig. 4 is a schematic diagram of the circuit control of the present invention.
In the figure:
1. clean room 2, central controller 3, exhaust duct
4. Flow guide grid 5, air inlet pipeline 6 and electric air valve
7. Fan 8, first filter 9, inner wall
10. Air conditioning system 11, first differential pressure gauge 12, second differential pressure gauge
13. Second filter 14, return air pipeline 15 and constant air volume valve
16. Third filter 17, return air static pressure cavity 18 and filter screen
19. Upper cover 20, filter element 21 and differential pressure sensor
22. First resistor 23, second resistor 24 and second air return inlet
25. An air outlet 26, an air inlet 27 and a first air return opening.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1-4, the utility model discloses a device for automatically adjusting pressure difference in clean room, including clean room 1, exhaust pipe 3, intake duct 5 and return air duct 14, clean room 1 is provided with inner wall 9 at the top, air conditioning system 10 is installed at the bottom of inner wall 9, air conditioning system 10 is provided with two groups, inner wall 9 is internally provided with pressure difference induction mechanism, return air duct 14 is fixed at one end of inner wall 9, return air duct 14 is provided with first return air inlet 27 at one end, return air duct 14 is internally provided with air flow control mechanism, clean room 1 is provided with intake duct 5 at the top, intake duct 5 is provided with air inlet 26 at one end, intake duct 5 is provided with first filter 8 at one end near air inlet 26, intake duct 5 is internally provided with auxiliary cleaning mechanism near first filter 8, intake duct 5 is connected with flow guide grid 4 at the end far from air inlet 26, clean room 1 is internally provided with central controller 2, the one end that central controller 2 was kept away from to toilet 1 is provided with return air static pressure chamber 17, and return air static pressure chamber 17 is inside to run through return air pipeline 14, and return air static pressure chamber 17 outside is provided with second return air inlet 24, and the one end externally mounted exhaust duct 3 that toilet 1 kept away from return air static pressure chamber 17, and the one end that exhaust duct 3 kept away from toilet 1 sets up air exit 25.
The air conditioning system 10 is operated by starting the central controller 2, the air conditioning system discharges heat and waste gas through the exhaust pipeline 3, then sends the heat and the waste gas into a clean room through the air inlet pipeline 5, when the pressure difference sensing mechanism monitors that the indoor pressure difference changes, the heat and the waste gas are transmitted to the central controller 2, and the central controller 2 controls the operation of the air return system.
In this embodiment, the differential pressure sensing mechanism includes a first differential pressure gauge 11, a second differential pressure gauge 12, a differential pressure sensor 21, a first resistor 22 and a second resistor 23, the first differential pressure gauge 11 is connected to the second resistor 23, the second resistor 23 is connected to the differential pressure sensor 21, one end of the differential pressure sensor 21 away from the differential pressure sensor 21 is connected to the first resistor 22, and the first resistor 22 is connected to the second differential pressure gauge 12.
The first differential pressure gauge 11 and the second differential pressure gauge respectively test the pressure difference inside and outside the clean room and transmit the pressure difference to the differential pressure sensor 21, and the differential pressure sensor 21 transmits the pressure difference to the central controller 2 through a circuit system.
In this implementation, the air volume control mechanism includes the second filter 13, the constant air volume valve 15 and the third filter 16, the constant air volume valve 15 is disposed at one end of the inside of the return duct 14 close to the first return air port 27, the second filter 13 is installed at the inside of the return duct 14 close to the inner side of the constant air volume valve 15, and the third filter 16 is installed at one end of the return duct 14 far from the first return air port 27.
The second filter 13 and the third filter 16 are arranged in the return air pipeline 14 to filter air, so that the cleanness in a clean room is ensured, the constant air valve 15 is arranged in the return air pipeline 14, the constant air valve 15 is connected with the central controller 2, and the central controller 2 controls the operation of a return air system.
In this embodiment, the auxiliary cleaning mechanism comprises a fan 6 and a fan 7, the air inlet pipe 5 is provided with an electric air valve 6, the electric air valve 6 penetrates through the inside of the air inlet pipe 5, the fan 7 is arranged inside the air inlet pipe 5 close to the inner side of the first filter 8, and the electric air valve 6 controls the fan 7.
Through installing electronic blast gate 6 at air inlet pipe 5, in order to ensure that air inlet system operation electronic blast gate is normally open state, when air intake 26 department dust is more, central controller 2 control electronic blast gate 6 closes and be connected with air inlet pipe 5 upper wall, and fan 7 opens this moment, blows away the dust of air intake 26 department, ensures air inlet system steady operation.
In this embodiment, the first filter 8 includes a filter net 18, an upper cover 19 and a filter element 20, the filter element 20 is disposed in the first filter 8, the upper end of the first filter 8 is connected to the upper cover 19, and the filter net 18 is disposed inside the first filter 8 and the upper cover 19.
Through installing a plurality of filters at air inlet system and return air system, ensure the cleanliness factor of toilet.
In this embodiment, the central controller 2 controls the electric air valve 6, the air conditioning system 10, the constant air volume valve 15 and the differential pressure sensor 21, the electric air valve 6 controls the fan 7, the air conditioning system 10 is connected with the exhaust duct 3 and the intake duct 5, and the differential pressure sensor 21 is connected with the first differential pressure gauge 11 and the second differential pressure gauge 12.
The central controller receives and transmits data through the PLC electrical system, full-automatic operation of the system is achieved, errors caused by difference in a manual process are reduced, and time and labor are saved.
The working principle is as follows:
step 1: firstly, a central controller 2 is installed inside a clean room 1, a return air static pressure cavity 17 is arranged at one end of the clean room 1 far away from the central controller 2, a return air pipeline 14 penetrates through the return air static pressure cavity 17, a second filter 13, a third filter 16 and an air control mechanism are installed inside the return air pipeline 14, an inner wall 9 is arranged at the top of the clean room, a pressure difference induction device and a flow guide grid 4 are installed inside the inner wall 9, an air inlet system is installed at the top of the inner wall, a first filter 8 and an auxiliary cleaning mechanism are installed inside the air inlet system, and an exhaust system is installed at the outer side of one end, close to the central controller 2, of the clean room 1.
Step 2: secondly, the central controller 2 controls the operation of the air conditioning system 10, the air conditioning system is respectively connected with the air inlet pipeline 5 and the air outlet pipeline 3, when the dust at the air inlet 26 is accumulated too much, the central controller 2 controls the electric air valve 6 to be closed and connected with the upper wall of the air inlet pipeline 5 so as to switch on the power supply of the fan 7, and the fan 7 blows away the dust at the air inlet 26.
And step 3: finally, when the pressure difference induction mechanism monitors that the outdoor pressure difference is unbalanced with the pressure difference of the clean room 1, the pressure difference sensor transmits the pressure difference to the central controller 2 through the PLC, and the central controller 2 enables the air returning pipeline 14 to return the air to flow into the clean room 1 through the second air returning opening 24 by adjusting the size of the constant air volume valve 15, so that the constant pressure difference between the clean room 1 and the outside is ensured, and the clean room 1 can operate safely and stably for a long time.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (8)
1. An automatic pressure difference adjusting device for a clean room, comprising: clean room, air conditioner, exhaust pipe, intake stack and central controller, its characterized in that: the air return static pressure cavity is internally provided with an air quantity control mechanism and an air return pipeline, the air quantity control mechanism is arranged on the air return pipeline, the bottom of the air return static pressure cavity is provided with a second air return inlet leading to the indoor space, the upper part of the air return static pressure cavity is provided with an air return pipeline outlet, and the air return pipeline inlet is a first air return inlet; the differential pressure sensing mechanism, the air volume control mechanism, the air conditioner and the air inlet and outlet pipeline are respectively electrically connected with the central controller.
2. The apparatus for automatically adjusting pressure difference in clean room according to claim 1, wherein: the differential pressure sensing mechanism comprises a differential pressure sensor, a first differential pressure meter arranged indoors and a second differential pressure meter arranged outdoors, and the differential pressure sensor is connected with the first differential pressure meter and the second differential pressure meter through resistors respectively.
3. The apparatus for automatically adjusting pressure difference in clean room according to claim 1, wherein: the air volume control mechanism comprises: the constant air volume valve, the second filter and the third filter are sequentially arranged at the inlet of the return air pipeline.
4. The apparatus for automatically adjusting pressure difference in clean room according to claim 1, wherein: the air inlet port of the air inlet pipeline is located outdoors and is provided with a first filter and an auxiliary cleaning mechanism, and the air outlet port of the air inlet pipeline is provided with a flow guide grid and is located indoors and communicated with an air duct of an air conditioner.
5. The apparatus for automatically adjusting pressure difference in clean room according to claim 4, wherein: the auxiliary cleaning mechanism is a fan and an electric air valve which are arranged on the inner side of the first filter, and the electric air valve penetrates through the interior of the air inlet pipeline and is electrically connected with the fan.
6. The clean room automatic pressure difference adjusting device according to any one of claims 3, 4 or 5, characterized in that: the filter is provided with a filter element and is positioned in the shell, and a filter screen is arranged between the filter element and the upper cover of the shell.
7. The apparatus for automatically adjusting pressure difference in clean room according to claim 6, wherein: the filter element is a corrugated cotton core.
8. The apparatus for automatically adjusting pressure difference in clean room according to claim 1, wherein: the air conditioner is installed on the inner wall at clean room top, return air static pressure chamber sets up on the one end lateral wall of clean room, the lateral wall upper portion that the clean room other end and return air static pressure chamber are relative is equipped with exhaust pipe, central controller installs the position of keeping away from air conditioner, return air static pressure chamber and exhaust pipe in the clean room.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021241604.2U CN213020135U (en) | 2020-06-30 | 2020-06-30 | Automatic pressure difference adjusting device for clean room |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021241604.2U CN213020135U (en) | 2020-06-30 | 2020-06-30 | Automatic pressure difference adjusting device for clean room |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213020135U true CN213020135U (en) | 2021-04-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021241604.2U Active CN213020135U (en) | 2020-06-30 | 2020-06-30 | Automatic pressure difference adjusting device for clean room |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213020135U (en) |
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2020
- 2020-06-30 CN CN202021241604.2U patent/CN213020135U/en active Active
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