Positive pressure adjusting device for clean space

Abstract

The utility model discloses a positive pressure adjusting device for a clean space. The positive pressure adjusting device comprises a first air pipe and a second air pipe which are communicated. The first air pipe communicates with the outside, and the end of the second air pipe is located indoors. An electromagnetic valve is arranged on the air pipe I; the device further comprises an air inlet fan, a filtering assembly and a standby adjusting assembly. The air inlet fan is located on the first air pipe. One end of the filter assembly is connected with the air inlet fan, and the other end is connected with the air pipe II; a filter screen plate is arranged in the filter assembly and can be cleaned; the standby adjusting assembly comprises a standby pipeline communicated with the first air pipe, and a second electromagnetic valve is arranged on the standby pipeline. The standby pipeline is connected with an exhaust fan, and the end of the standby pipeline is provided with a third electromagnetic valve and communicated with the front end of the filtering assembly. The air inlet fan and the air exhaust fan are arranged at the same time, on the basis that normal positive pressure adjustment is achieved, when using requirements of a room are changed, the room can be switched to be in a balance state or a negative pressure state by starting the standby adjusting assembly, and practicability is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to indoor air purification technical field, specifically point to a kind of positive pressure regulating device for clean space. BACKGROUND

[0002] Indoor positive and negative pressure regulation is an important environmental control technology, which adjusts the indoor pressure by controlling the air supply and exhaust volume. The working principle of indoor positive and negative pressure regulation is based on aerodynamics and fluid mechanics. When the air supply volume in the room is greater than the exhaust volume, positive pressure will be generated in the room. When the air supply volume is less than the exhaust volume, negative pressure will be generated in the room.

[0003] In medical treatment, for spaces with high cleanliness requirements, such as operating rooms, infectious disease rooms, sterile rooms, etc., the indoor environment needs to be in a positive pressure state during use according to different requirements, which can prevent external pollutants from entering and ensure the cleanliness and sterile state of the production environment. In the prior art, there are corresponding balance systems for positive pressure regulation of clean spaces, but their applicability is poor, and they can only achieve positive pressure regulation. With the diversification of requirements and the change of room usage state, there is a need for the indoor environment to restore balance or reach a negative pressure state. The fixedly installed positive pressure regulation mechanism is difficult to replace or upgrade, which has limitations. SUMMARY

[0004] The utility model solves the above-mentioned technical problem that the indoor environment needs to restore balance or reach a negative pressure state, and the fixedly installed positive pressure regulation mechanism is difficult to replace or upgrade, which has limitations. It provides a positive pressure regulating device for clean space.

[0005] To solve the above technical problems, the utility model provides a technical scheme: a positive pressure regulating device for clean space, comprising a communication wind pipe one and a wind pipe two; the wind pipe one is connected with the outdoor environment, and the end of the wind pipe two is located in the indoor environment; an electromagnetic valve is arranged on the wind pipe one; further comprising:

[0006] An air inlet fan is arranged on the wind pipe one, which can draw air from the wind pipe one to the wind pipe two;

[0007] A filter assembly is connected with the air inlet fan at one end and connected with the wind pipe two at the other end; a filter screen is arranged in the filter assembly, and the filter screen can be cleaned;

[0008] A standby regulating assembly is arranged, which comprises a standby pipeline connected with the wind pipe one, and an electromagnetic valve two is arranged on the standby pipeline; an exhaust fan is connected to the standby pipeline, and an electromagnetic valve three is arranged at the end of the standby pipeline and connected with the front end of the filter assembly.

[0009] Further, the connection point of the standby pipeline and the wind pipe one is located on the front side of the air inlet fan.

[0010] Furthermore, the air intake fan and the exhaust fan are installed in opposite directions.

[0011] Furthermore, the filter assembly includes a first connecting cylinder, a second connecting cylinder, and an operating cylinder; the operating cylinder is rotatably connected between the first connecting cylinder and the second connecting cylinder; the filter screen is located on the inner side of the second connecting cylinder near the operating cylinder, and a scraper is provided inside the end of the operating cylinder, the scraper being able to contact the filter screen.

[0012] Furthermore, both ends of the operating cylinder are provided with limiting rings, and the opposite ends of the connecting cylinder one and connecting cylinder two are provided with grooves that can be rotatably connected with the limiting rings.

[0013] Furthermore, an auxiliary ring is provided on the outer side of the operating cylinder; a number of fixed handles are provided between the connecting cylinder one and the connecting cylinder two, and the fixed handles are higher than the auxiliary ring.

[0014] The advantages of this utility model compared with the prior art are as follows:

[0015] It is equipped with both intake and exhaust fans. In addition to normal positive pressure regulation, when the room's usage needs change, the backup adjustment components can be activated to switch the room to a balanced or negative pressure state, thereby improving its practicality. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the backup adjustment component of this utility model.

[0018] Figure 3 This is a structural breakdown diagram of the spare adjustment component of this utility model.

[0019] Figure 4 This is a schematic diagram of the spare pipeline and exhaust fan structure of this utility model.

[0020] As shown in the figure: 1. Air duct one, 2. Air duct two, 3. Inlet fan, 4. Filter assembly, 5. Filter screen, 6. Spare duct, 7. Solenoid valve, 8. Solenoid valve two, 9. Exhaust fan, 10. Solenoid valve three, 11. Connecting cylinder one, 12. Connecting cylinder two, 13. Operating cylinder, 14. Scraper, 15. Limiting ring, 16. Groove, 17. Auxiliary ring, 18. Fixed handle. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings.

[0022] Example 1, in conjunction with Appendix Figure 1A positive pressure regulating device for clean room, comprising communicating air pipe one 1 and air pipe two 2; air pipe one 1 communicates with the outside, and the end of air pipe two 2 is located indoors; air inlet fan 3 is located on air pipe one 1 and can draw air from air pipe one 1 to air pipe two 2; the above structure can introduce external air into the space to form a positive pressure environment in the room;

[0023] Air pipe one 1 is provided with electromagnetic valve 7, which is closed when air inlet fan 9 needs to be started to achieve air pressure balance or negative pressure state, so as to avoid the balance of positive pressure state from being broken;

[0024] Combined with the drawings Figure 1 、 2 , 3, one end of filter assembly 4 is connected with air inlet fan 3, and the other end is connected with air pipe two 2; filter assembly 4 is provided with filter screen plate 5 and can clean filter screen plate 5;

[0025] Specifically, filter assembly 4 comprises connecting cylinder one 11, connecting cylinder two 12 and operation cylinder 13; operation cylinder 13 is rotatably connected between connecting cylinder one 11 and connecting cylinder two 12; that is, operation cylinder 13 is provided with limiting ring 15 at both ends, and connecting cylinder one 11 and connecting cylinder two 12 are provided with recess 16 capable of being rotatably connected with limiting ring 15 at opposite ends, so as to realize the rotation of operation cylinder 13 between connecting cylinder one 11 and connecting cylinder two 12;

[0026] In addition, filter screen plate 5 is located on the inner side of one end of connecting cylinder two 12 close to operation cylinder 13, and scraper 14 is arranged at the end of operation cylinder 13 and can contact filter screen plate 5; so that, combined with the above structure, when operation cylinder 13 rotates, scraper 14 can scrape the dust in the air attached to filter screen plate 5 to a concentrated state, which can avoid affecting air circulation on the one hand, and can directly draw out the loosened dust on the other hand when the standby regulating assembly is started;

[0027] Based on the above structure, auxiliary ring 17 is arranged on the outer side of operation cylinder 13; a plurality of fixed handles 18 are arranged between connecting cylinder one 11 and connecting cylinder two 12, and fixed handles 18 are higher than auxiliary ring 17; auxiliary ring 17 can be used to assist the rotation of operation cylinder 13, and fixed handles 18 are used to connect and fix connecting cylinder one 11 and connecting cylinder two 12 to avoid affecting the rotation of operation cylinder 13;

[0028] Combined with the drawings Figure 1 、 4The standby regulating assembly comprises a standby pipeline 6 in communication with the air duct 1, the connection point of the standby pipeline 6 with the air duct 1 is located at the front side of the air inlet fan 3, the standby pipeline 6 is provided with a solenoid valve 2, the standby pipeline 6 is connected with an air outlet fan 9, the installation direction of the air inlet fan 3 and the air outlet fan 9 is opposite, the end of the standby pipeline 6 is provided with a solenoid valve 3 and is in communication with the front end of the filtering assembly 4, so that when the space needs to balance the pressure or form the negative pressure, the air inlet fan 3 is closed, the air outlet fan 9 is opened, indoor air is extracted, the indoor pressure reaches the requirement, and the function of the space is more diversified, and the use requirement under multiple states can be met.

[0029] The above describes the utility model and its implementation mode, and the description is not limited, and the drawings shown are only one of the implementation modes of the utility model, and the actual structure is not limited thereto. In summary, if a person skilled in the art is inspired, without departing from the creative purpose of the utility model, without creative design, the similar structure mode and the embodiment of the technical scheme, which belongs to the protection scope of the utility model.

Claims

1. A positive pressure regulating device for clean spaces, comprising a first air duct (1) and a second air duct (2) connected together; characterized in that: The first air duct (1) is connected to the outside, and the end of the second air duct (2) is located indoors; the first air duct (1) is equipped with a solenoid valve (7); it also includes: Air intake fan (3); located on duct one (1), it can draw air from duct one (1) to duct two (2); Filter assembly (4); one end is connected to the air intake fan (3), and the other end is connected to the second air duct (2); the filter assembly (4) is equipped with a filter screen (5) and can clean the filter screen (5); A backup regulating component includes a backup pipe (6) connected to the air duct (1), a second solenoid valve (8) on the backup pipe (6), an exhaust fan (9) connected to the backup pipe (6), and a third solenoid valve (10) at the end of the backup pipe (6) and connected to the front end of the filter component (4).

2. The positive pressure regulating device for clean spaces according to claim 1, characterized in that: The connection point between the backup pipe (6) and the air duct (1) is located in front of the air intake fan (3).

3. The positive pressure regulating device for clean spaces according to claim 1, characterized in that: The air intake fan (3) and the exhaust fan (9) are installed in opposite directions.

4. The positive pressure regulating device for clean spaces according to claim 1, characterized in that: The filter assembly (4) includes a first connecting cylinder (11), a second connecting cylinder (12), and an operating cylinder (13); the operating cylinder (13) is rotatably connected between the first connecting cylinder (11) and the second connecting cylinder (12); the filter screen (5) is located on the inner side of the second connecting cylinder (12) near the operating cylinder (13), and a scraper (14) is provided inside the end of the operating cylinder (13), and the scraper (14) can contact the filter screen (5).

5. A positive pressure regulating device for clean spaces according to claim 4, characterized in that: Both ends of the operating cylinder (13) are provided with limiting rings (15), and the opposite ends of the connecting cylinder one (11) and connecting cylinder two (12) are provided with grooves (16) that can be rotatably connected with the limiting rings (15).

6. A positive pressure regulating device for clean spaces according to claim 5, characterized in that: An auxiliary ring (17) is provided on the outside of the operating cylinder (13); a number of fixed handles (18) are connected between the connecting cylinder one (11) and the connecting cylinder two (12), and the fixed handles (18) are higher than the auxiliary ring (17).

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