CN212481591U

CN212481591U - Positive and negative pressure fresh air exhaust sterilization and purification device

Info

Publication number: CN212481591U
Application number: CN202020514601.5U
Authority: CN
Inventors: 熊长平
Original assignee: Jiangsu Varki Environmental Technology Co ltd
Current assignee: Jiangsu Varki Environmental Technology Co ltd
Priority date: 2020-04-09
Filing date: 2020-04-09
Publication date: 2021-02-05
Anticipated expiration: 2030-04-09

Abstract

The utility model provides a positive and negative pressure fresh air exhaust sterilization and purification device, which comprises a casing, a reflux body, a filter screen, an electrostatic sterilization module and a fresh air fan; the inside of the shell is divided into a fresh air cavity and an exhaust air cavity by a main partition plate; the fresh air cavity is provided with a fresh air inlet and a fresh air outlet, a reflux body, a filter screen, an electrostatic sterilization module and a fresh air fan are installed in the fresh air cavity, the reflux body is positioned between the filter screen and the fresh air inlet, the reflux body is of an arc-shaped structure and comprises a ventilation part close to the filter screen and a reflux part far away from the filter screen, the two reflux parts are respectively connected to the upper side and the lower side of the ventilation part, and the ventilation part is provided with a plurality of ventilation holes; the exhaust chamber is equipped with return air entry and return air export, and the air current flow direction in the intracavity of airing exhaust is opposite with the air current flow direction in the new trend intracavity. The utility model discloses can solve the poor problem of filter effect of new exhaust fan.

Description

Positive and negative pressure fresh air exhaust sterilization and purification device

Technical Field

The utility model belongs to the technical field of air treatment equipment, concretely relates to positive and negative pressure is air exhaust sterilizing and purifying device newly.

Background

The fresh air exhaust fan integrates the fresh air fan and the exhaust fan into a whole, and simultaneously realizes the functions of positive pressure fresh air delivery and negative pressure exhaust. The existing fresh air exhaust fan is generally used for filtering particulate matters, smoke dust, dust and the like in air, is mainly used for removing dust, and does not effectively kill microorganisms such as bacteria and the like in the air. In the filtering process of the fresh air exhaust fan, under the suction action of the fan, outdoor fresh air is greatly gushed into the filter screen and is simultaneously contacted with the filter screen, so that the filter screen has short filtering time to the fresh air, and the filtering effect is not ideal enough.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a positive negative pressure is air exhaust purification device that disinfects newly to solve the poor problem of new exhaust fan's filter effect.

The utility model provides a following technical scheme:

a positive-negative pressure fresh air exhaust sterilization and purification device comprises a shell, a reflux body, a filter screen, an electrostatic sterilization module and a fresh air fan; the inside of the shell is divided into a fresh air cavity and an exhaust air cavity by a main partition plate; the fresh air cavity is provided with a fresh air inlet and a fresh air outlet, the backflow body, the filter screen, the electrostatic sterilization module and the fresh air fan are installed in the fresh air cavity, the backflow body is located between the filter screen and the fresh air inlet, the backflow body is of an arc-shaped structure and comprises a ventilation part close to the filter screen and a backflow part far away from the filter screen, the two backflow parts are respectively connected to the upper side and the lower side of the ventilation part, and the ventilation part is provided with a plurality of ventilation holes; the exhaust cavity is provided with a return air inlet and a return air outlet, and the airflow direction in the exhaust cavity is opposite to the airflow direction in the fresh air cavity.

Preferably, the filter screen is including just imitating filter screen and high-efficient filter screen, the backward flow body just imitate the filter screen static sterilization module high-efficient filter screen with the new trend fan by new trend entry side direction the new trend outlet side install in proper order in the new trend intracavity.

Preferably, the two ends of the reflux body are bent towards the fresh air inlet and tightly attached to the inner wall of the casing, the two ends of the reflux body are open, and the fresh air inlet is communicated with the open part of the reflux body.

Preferably, the distribution density of the vent holes in the ventilation portion is gradually reduced from the middle of the ventilation portion to the direction of the backflow portion.

Preferably, the reflow body is a reflow bag or a reflow board.

Further, the electrostatic sterilization module comprises a high-voltage bag, an ionization plate and a dust collecting plate, the high-voltage bag is fixedly mounted on the inner wall of the machine shell, and the ionization plate and the dust collecting plate are arranged in parallel with the filter screen and are electrically connected with the high-voltage bag.

Further, the filter screen can be slidably embedded in a guide rail on the casing.

Preferably, the top wall of the casing is provided with a maintenance hole at the filter screen, the maintenance hole is sealed by a sealing plate, and the filter screen can be drawn out of the casing through the maintenance hole.

The utility model has the advantages that:

the utility model discloses with the new trend chamber with exhaust the chamber integration in a rack, new trend fan makes indoor formation malleation environment, indoor malleation passes through the return air entry discharge with indoor foul smell outdoor, realizes taking a breath. The utility model installs arc reflux body in the front of the filter screen in the fresh air cavity, the reflux body is provided with the vent hole, part of the air flow entering the fresh air cavity from the fresh air inlet passes through the vent hole under the suction effect of the fresh air fan, then enters the filter screen for filtering and the electrostatic sterilization module for sterilization, becomes clean fresh air, and is pumped into the room through the fresh air outlet; the other part of the airflow reversely flows under the flow guiding effect of the backflow plate and then passes through the vent hole, so that the retention time of the fresh air in the fresh air cavity is prolonged, the contact time between the outdoor fresh air and the filter screen is prolonged, and the filtering effect is improved.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic view of the internal structure of the present invention;

fig. 2 is a schematic perspective view of another perspective of the present invention;

labeled as: 1. a housing; 2. refluxing the fluid; 3. a filter screen; 4. an electrostatic sterilization module; 5. a fresh air fan; 6. a main partition plate; 7. a fresh air cavity; 8. an exhaust chamber; 9. an exhaust fan; 10. a fresh air inlet; 11. a fresh air outlet; 12. a ventilation portion; 13. a reflux section; 14. a vent hole; 15. an air return inlet; 16. an air return outlet; 17. a primary filter screen; 18. a high-efficiency filter screen; 19. a high-voltage pack; 20. an ionization plate; 21. a dust collecting plate; 22. a guide rail; 23. a repair hole; 24. and (7) sealing the plate.

Detailed Description

As shown in fig. 1 and 2, a positive-negative pressure fresh air exhaust sterilization and purification device comprises a casing 1, a reflux body 2, a filter screen 3, an electrostatic sterilization module 4 and a fresh air fan 5. The interior of the machine shell 1 is divided into a fresh air cavity 7 and an air exhaust cavity 8 by a main partition plate 6, outdoor fresh air can be sent into the interior of the machine shell by a fresh air fan 5 in the fresh air cavity 7, so that positive pressure is formed indoors, indoor foul air can be exhausted outdoors through the air exhaust cavity under the action of the positive pressure, and an exhaust fan 9 controlled by an electromagnetic valve can be installed in the air exhaust cavity according to circumstances so as to improve air exhaust power.

Specifically, please refer to fig. 1, the fresh air cavity 7 is provided with a fresh air inlet 10 and a fresh air outlet 11, and a reflux body 2, a filter screen 3, an electrostatic sterilization module 4 and a fresh air fan 5 are installed in the fresh air cavity 7. The static sterilization module 4 and the fresh air fan 5 are both connected with an external power supply. Filter screen 3 is including just imitating filter screen 17 and high-efficient filter screen 18, backward flow body 2 is located and just imitates between filter screen 17 and the new trend entry 10, backward flow body 2 is the arc structure, it is including hugging closely the ventilation part 12 of just imitating filter screen 17 and keeping away from the backward flow portion 13 of just imitating filter screen 17, two backward flow portions 13 are connected respectively in the upper and lower both sides of ventilation part 12, the tip of backward flow portion 13 is buckled and is hugged closely the inner wall of casing 1 to the direction of new trend entry 10, the both ends that make whole backward flow body are the opening form, new trend entry 10 communicates the open part of backward flow body 2. The ventilation part 12 is provided with a plurality of ventilation holes 14, the distribution density of the ventilation holes 14 is gradually reduced from the middle part of the ventilation part to the direction of the backflow part 13, part of airflow entering the fresh air cavity 7 from the fresh air inlet 10 passes through the ventilation holes 14 under the suction action of the fresh air fan 5, and then enters the room from the fresh air outlet 11 after being filtered by the filter screen and sterilized by the electrostatic sterilization module 4; the other part of the airflow reversely flows under the guide action of the return plate 2 and then passes through the vent hole 14, so that the retention time of the fresh air in the fresh air cavity is prolonged. The reflow body 2 may be a flexible reflow bag or a rigid reflow board, and may be fixed in the case 1 by a common method such as bonding, wire winding, screw fixing, or welding.

Correspondingly, the exhaust cavity 8 is provided with a return air inlet 15 and a return air outlet 16, and the airflow direction in the exhaust cavity 8 is opposite to the airflow direction in the fresh air cavity.

In order to improve the filter effect, the filter screen 3 of this embodiment includes and just imitates filter screen 17 and high-efficient filter screen 18, and the backward flow 2, just imitate filter screen 17, static sterilization module 4, high-efficient filter screen 18 and fresh air fan 5 are installed in fresh air chamber 7 by fresh air entry side direction fresh air outlet side in proper order, realize filtering the function of removing dust and disinfecting to the fresh air.

The electrostatic sterilization module 4 comprises a high-voltage bag 19, an ionization plate 20 and a dust collecting plate 21, the high-voltage bag 19 is fixedly installed on the inner wall of the machine shell 1, the ionization plate 20 and the dust collecting plate 21 are arranged in parallel with the filter screen 3 and are electrically connected with the high-voltage bag 19, the high-voltage bag 19 enables a strong electrostatic field to be formed in the ionization plate 20, microorganisms and particles in air flow passing through the ionization plate 20 are enabled to be positively charged and adsorbed on the dust collecting plate 21 with negative charges, and the sterilization and dust removal effects are achieved.

Referring to fig. 2, a guide rail 22 is installed on a side wall of the housing 1, and front and rear end surfaces of the filter net 3 are slidably inserted into the guide rail 22. The top wall of the machine shell 1 is provided with a maintenance hole 23 at the filter screen, the maintenance hole 23 is tightly sealed by a sealing plate 24 and a bolt, when the filter screen needs to be replaced, the sealing plate 24 can be disassembled, and then the maintenance hole 23 is drawn out of the machine shell 1.

The working process of the device is as follows: the fresh air fan 5 is started, the power supply of the electrostatic sterilization module 4 is switched on, and under the suction action of the fresh air fan 5, part of outdoor fresh air passes through the vent holes 14 on the reflux plate 2 and then is filtered by the primary filter screen 17, sterilized by the electrostatic sterilization module 4 and filtered again by the high-efficiency filter screen 18, and then flows into the room through the fresh air outlet 11; the other part of the airflow reversely spirals under the action of the backflow plate 2 and then passes through the vent hole 14, so that the filtering effect on fresh air is improved. Part of indoor dirty air is exhausted out of the room through the exhaust cavity 8 under the action of indoor positive pressure or the action of an exhaust fan.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A positive-negative pressure fresh air exhaust sterilization and purification device is characterized by comprising a machine shell, a reflux body, a filter screen, an electrostatic sterilization module and a fresh air fan; the inside of the shell is divided into a fresh air cavity and an exhaust air cavity by a main partition plate; the fresh air cavity is provided with a fresh air inlet and a fresh air outlet, the backflow body, the filter screen, the electrostatic sterilization module and the fresh air fan are installed in the fresh air cavity, the backflow body is located between the filter screen and the fresh air inlet, the backflow body is of an arc-shaped structure and comprises a ventilation part close to the filter screen and a backflow part far away from the filter screen, the two backflow parts are respectively connected to the upper side and the lower side of the ventilation part, and the ventilation part is provided with a plurality of ventilation holes; the exhaust cavity is provided with a return air inlet and a return air outlet, and the airflow direction in the exhaust cavity is opposite to the airflow direction in the fresh air cavity.

2. The positive-negative pressure fresh air exhaust sterilization and purification device according to claim 1, wherein the filter screen comprises a primary filter screen and a high-efficiency filter screen, and the backflow body, the primary filter screen, the electrostatic sterilization module, the high-efficiency filter screen and the fresh air fan are sequentially installed in the fresh air cavity from a fresh air inlet side to a fresh air outlet side.

3. The positive-negative pressure fresh air exhaust sterilization and purification device according to claim 2, wherein two ends of the backflow body are bent toward the fresh air inlet and are tightly attached to the inner wall of the casing, two ends of the backflow body are open, and the fresh air inlet is communicated with the open part of the backflow body.

4. The positive-negative pressure fresh air exhaust sterilization and purification device according to claim 1, wherein the distribution density of the vent holes in the ventilation portion is gradually reduced from the middle of the ventilation portion to the direction of the return portion.

5. The positive-negative pressure fresh air exhaust sterilization and purification device according to claim 1, wherein the backflow body is a backflow bag or a backflow plate.

6. The positive-negative pressure fresh air exhaust sterilizing and purifying device according to claim 1, wherein the electrostatic sterilizing module comprises a high-voltage bag, an ionization plate and a dust collecting plate, the high-voltage bag is fixedly mounted on the inner wall of the casing, and the ionization plate and the dust collecting plate are arranged in parallel with the filter screen and are electrically connected with the high-voltage bag.

7. The positive-negative pressure fresh air exhaust sterilizing and purifying device according to claim 1, wherein the filter screen is slidably inserted into a guide rail on the casing.

8. The positive-negative pressure fresh air exhaust sterilizing and purifying device according to claim 7, wherein the top wall of the casing is provided with a maintenance hole at the filter screen, the maintenance hole is sealed by a sealing plate, and the filter screen can be drawn out of the casing through the maintenance hole.