CN215570970U - Steady-state displacement flow air conditioning system - Google Patents

Abstract

The utility model discloses a steady-state displacement air-conditioning system which comprises a steady-state displacement air supply device, an air supply channel device arranged at one end of an air outlet of the steady-state displacement air supply device, a laminar air return channel device arranged at one end of an air inlet of the steady-state displacement air supply device and an attachment plate, wherein the air supply channel device is connected with the attachment plate; the steady-state displacement flow air supply device comprises a fan, a first high-efficiency filter and a second high-efficiency filter which are communicated with an air inlet of the fan, and a heat exchanger which is communicated with an air outlet of the fan; the air supply channel device is one of a positive pressure type air supply channel device and a reflection type air supply channel device; the air return opening is arranged at the bottom of the clean room side wall in the diagonal direction of the laminar flow air supply channel device. The utility model uses stable propulsion laminar flow to ventilate, the ventilation efficiency is high, the air output of the system is obviously reduced, and the required fan power is relatively low, so the volume of the used fan is small, and the application range is wider; has the advantages of no wind feeling, good cleaning effect, capability of obviously reducing the concentration of pollutants and energy conservation.

Description

Steady-state displacement flow air conditioning system

Technical Field

The utility model relates to the technical field of indoor air cleaning, in particular to a steady-state displacement flow air conditioning system.

Background

People live indoors most of the time, the influence of indoor air pollution on human health is more serious in view of the exposure dose of human pollutants, the indoor air quality is directly related to pollutant sources, outdoor pollutants enter the room through doors and windows, gaps of walls, air inlets of ventilation systems and the like, and the indoor sources directly enter the air indoors. Currently, fine particles (PM2.5) are a major health-hazardous atmospheric pollutant. Under the natural ventilation condition, the concentration of indoor fine particles is directly and positively correlated with the concentration of outdoor PM 2.5. PM2.5 is also produced by indoor buildings or facilities, personnel activities or production, for example, such as smoking, cooking, heating processes, etc., which can result in an increase in the concentration of particulate matter in the room by several times or even tens of times in a short period of time. The resuspension of the particulate matters can be caused by activities such as personnel activity, cleaning, bathing and the like, about 57% -80% of the particulate matters with the particle size of 2-10 mu m come from indoor activities, and the corresponding PM2.5 pollution can be generated indoors even if the concentration of the outdoor PM2.5 is high.

At present, the main method for improving indoor air is to utilize a ventilation system to ensure the cleanness of the indoor air, utilize an air conditioner or an air purifier to absorb the dirty air in the room, filter the dirty air by a filter element and inject the clean air into the room again, gradually dilute the dirty air in the room and reduce the concentration of fine particles in the room; meanwhile, in order to achieve the cleaning effect, the air supply distance is increased by increasing the air speed so as to improve the air exchange rate.

Factories, schools and offices are places where people work and live in a centralized way, heating and air conditioning are mainly adopted for winter heating and summer cooling in the places, but people often have obvious periodicity in the places, people are dense in the daytime, and no people exist at night; the continuous heating and cooling of the place wastes social resources; when the air conditioner is used for periodic heating or cooling, the required effect can be achieved for a long time, meanwhile, the heating and cooling effects in different areas are different, people can obviously feel air conditioner noise, meanwhile, the wind sensation is obvious, the wind sensation in the air supply direction of the air conditioner is especially obvious, and the people can be uncomfortable to get ill.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a steady-state displacement flow air conditioning system which can quickly ventilate and quickly improve the indoor temperature and the air quality.

In order to achieve the purpose, the technical scheme adopted by the utility model is as follows:

a steady-state displacement air-conditioning system comprises a steady-state displacement air supply device, an air supply channel device arranged at one end of an air outlet of the steady-state displacement air supply device and a laminar air return channel device arranged at one end of an air inlet of the steady-state displacement air supply device;

the steady-state displacement flow air supply device comprises a fan, a first high-efficiency filter and a second high-efficiency filter which are communicated with an air inlet of the fan, and a heat exchanger which is communicated with an air outlet of the fan;

the second high-efficiency filter is communicated with the outside of the clean room;

the air supply channel device is arranged along the top of the side wall on one side of the longer length direction of the clean room;

the air supply channel device is one of a positive pressure type air supply channel device and a reflection type air supply channel device;

the positive pressure type air supply channel device comprises a first static pressure air supply pipe, a pressure equalizing plate arranged at the lower end of the first static pressure air supply pipe and a first laminar flow air supply pipe arranged on the lower side of the pressure equalizing plate;

first pressure equalizing holes are uniformly distributed in the pressure equalizing plate;

the section of the first laminar flow air supply pipe is in a right-angle fan shape;

first laminar air supply holes are uniformly distributed on the arc surface of the first laminar air supply pipe;

the arc surface of the first laminar flow blast pipe protrudes towards the center of the clean room;

the axis of the first laminar air supply hole is vertical to the arc surface of the first laminar air supply pipe;

the reflection type air supply channel device comprises a second laminar flow air supply pipe and a second static pressure air supply pipe arranged in the second laminar flow air supply pipe;

the section of the second laminar flow blast pipe is in a right-angle sector shape;

second laminar air supply holes are uniformly distributed on the arc surface of the second laminar air supply pipe;

second pressure equalizing holes are uniformly distributed on the second static pressure blast pipe;

the second pressure equalizing hole is arranged on one side back to the second laminar air supply hole;

the axis of the second laminar air supply hole is vertical to the arc surface of the second laminar air supply pipe;

the arc surface of the second laminar flow air supply pipe protrudes towards the center of the clean room;

the laminar air return channel device is arranged on the side wall of the other side of the clean room in the longer length direction;

the laminar flow return air channel device comprises a return air pipe connected with the first high-efficiency filter and a return air inlet arranged at the lower end of the return air pipe;

air return holes are uniformly distributed on the surface of the air return opening;

and the air return opening is arranged at the bottom of the clean room side wall in the diagonal direction of the laminar flow air supply channel device.

As a further improvement of the utility model, the steady-state displacement flow air supply device also comprises an outer casing;

the heat exchanger includes at least one of: an evaporator, a condenser and an electric heating wire.

As a further improvement of the utility model, a pressure increasing layer is arranged on the upper side of the pressure equalizing plate or on the outer side of the second static pressure blast pipe and is used for increasing the air pressure difference on the two sides of the pressure equalizing plate so as to balance the air flow velocity on each part of the pressure equalizing plate;

the pressure increasing layer is selected from at least one of the following: glass fiber cloth, polyester fiber cloth and nylon cloth.

As a further improvement of the utility model, the laminar flow return air channel device also comprises a primary filter arranged above a return air inlet in the return air pipe;

the primary filter includes at least one of: bag filters, pleated filters, and panel filters;

the peripheral wall of the primary filter is provided with a sealing ring, so that the air flowing through the return air pipe is filtered by the primary filter.

As a further improvement of the utility model, the air return inlet is connected to the lower end of the air return pipe in a sliding manner;

the air return pipe comprises an air return substrate fixed on the side wall of the clean room and a C-shaped coaming connected to the air return substrate in a sealing manner;

sliding grooves are formed in the two sides of the return air base plate;

the lower end of the return air base plate protrudes out of the lower edge of the arc-shaped coaming;

the air return inlet is an arc-shaped cover matched with the air return pipe, and the inner wall of the arc-shaped cover is attached to the outer wall of the arc-shaped enclosing plate;

and clamping strips in sliding fit with the sliding grooves are arranged on two sides of the inner wall of the arc-shaped cover.

As a further improvement of the utility model, a filter screen is arranged on the inner side of the air return inlet to prevent insects and ants from entering the laminar flow air return channel device.

As a further improvement of the present invention, the steady-state displacement flow air conditioning system further comprises an attachment plate disposed outside the air supply passage device;

the attaching plate is fixedly connected to the side wall or the roof of the clean room;

a plurality of ridge-shaped drainage strips are arranged on the attaching plate;

one end of the drainage strip, which is high, is arranged corresponding to the first air supply hole or the second air supply hole;

the other end of the drainage strip is tangent to the side wall or the roof of the clean room.

The utility model belongs to a laminar flow clean room, and the working principle is as follows:

the air supply holes of the laminar flow clean room are arranged at the top of the side wall of the clean room, and the air supply holes are arranged on the arc surface vertical to the laminar flow air supply pipe, so that clean air is propelled forwards at a low speed along the normal direction of the arc surface; in addition, the propelling speed of the air is greater than the free diffusion speed of fine particles, clean air continuously sent out from the air supply hole forms a high-pressure area near the laminar flow air supply pipe, dirty air in a clean room is pressed towards a return air inlet arranged diagonally to the laminar flow air supply pipe, and then the clean air is purified through the return air pipe; the air is also a fluid, when the clean air meets an object which hinders the advance of the clean air, the clean air is viscous with the object and is propelled forwards along the surface of the object to form an attaching effect, and the inner surface of the clean room, including a wall body, a roof and the ground, can form the attaching effect, so that a non-parallel laminar flow field formed by the clean air in the clean room can not generate a dead zone of an indoor space, and meanwhile, the clean air and fine particles can not be mixed in a large range.

In conclusion, the laminar flow clean room has the characteristics of stable flow field, no generation of turbulent flow, high ventilation efficiency, simple structure and low manufacturing cost and operating cost.

Compared with the prior art, the utility model has the following beneficial effects:

the steady-state displacement flow air supply device supplements filtered clean air from the outside through the second high-efficiency filter, and the air and the original clean room air filtered by the first high-efficiency filter enter the clean room through the air supply channel device, so that the air pressure in the clean room is higher than the outdoor atmospheric pressure, the indoor air can only flow to the outside, the outdoor dirty air cannot enter the room from doors and windows and slits, and the room is ensured to be in a positive pressure environment; the side length of the shortest path of clean air in a room is made to be long by adopting a steady-state displacement air supply device, a laminar air supply channel device arranged at the top of the side wall of the clean room and a laminar air return channel device arranged at the bottom of the clean room in the diagonal direction, so that the air exchange efficiency is improved; a reflection type air supply channel device is adopted, and a second static pressure air supply pipe is arranged in a second laminar flow air supply pipe, so that the space is saved; the second pressure equalizing hole arranged on the second static pressure blast pipe faces away from the second laminar flow blast hole, and clean air sent by the second static pressure blast pipe flows out of the second laminar flow blast hole after being reflected, so that the retention time of the clean air in the second laminar flow blast pipe is prolonged, the pressure intensity at each position of the second laminar flow blast pipe is improved, and the flow rate, the flow rate and the flow direction of the clean air sent by each position of the second laminar flow blast pipe are all balanced; the laminar flow air supply channel device is arranged at the top of the side wall of the clean room, the discharged clean air forms a stable clean air high-pressure zone, the dirty air in the clean room is discharged by the return air inlet, an air low-pressure zone is formed at the accessory of the return air inlet, and the pressure difference between the clean air high-pressure zone and the air low-pressure zone enables the clean air in the high-pressure zone to flow to the low-pressure zone spontaneously to form a stable laminar flow gas flow field; the heat exchanger is arranged at the tail end of the steady-state displacement flow air supply device, so that the service life of the heat exchanger cannot be influenced, and meanwhile, the heat exchanger is close to the air supply channel device, so that the heat loss is reduced; the steady-state displacement flow air supply device is provided with the casing, and the fan, the first high-efficiency filter, the second high-efficiency filter and the heat exchanger are arranged in the casing, so that the integration degree is high, and the installation and the transportation are convenient; the laminar air supply channel device is internally provided with the pressurizing layer, so that the air pressure difference between the front and the rear of the pressurizing layer can be improved, and the air pressure on the high-pressure side of the pressurizing layer is uniform; the primary filter is arranged at the lower part of the return air duct, so that large particulate matters and dust can be primarily filtered, and the service life and the filtering efficiency of the first high-efficiency filter are improved; the air return inlet is connected to the lower end of the air return pipe in a sliding manner, so that the primary filter can be replaced conveniently; the outer side of the air supply channel device is provided with an attaching plate which can rapidly guide clean air to be attached to the side wall and the roof of the clean room and reduce the space dead zone of the inner chamber, thereby improving the air exchange efficiency; one side of the second high-efficiency filter is provided with a gas flow regulating valve, and the amount of air supplemented into the room is controlled by regulating the gas flow, so that the pressure difference between the room and the outside is kept balanced, and the power consumption of the system is reduced; because the system uses the stable propulsion laminar flow to ventilate, the ventilation efficiency is high, the air supply quantity of the system is obviously reduced compared with the traditional air conditioning system, and the required fan power is relatively low, so the used fan has smaller volume and wider application range; the system utilizes the flow field propelled at low speed to ventilate, so that the human body can not feel the flow of air and can not feel the wind, and the discomfort of the human body can not be caused.

Drawings

FIG. 1 is a schematic structural view (i.e., a sectional view B-B of FIG. 2) of the present invention;

FIG. 2 is a cross-sectional view A-A of FIG. 1 of the present invention;

FIG. 3 is a top view of FIG. 1 in accordance with the present invention;

fig. 4 is a structural diagram of the positive pressure type air supply passage device of the present invention (i.e., a partially enlarged view at the point I of fig. 1);

FIG. 5 is a structural view of the reflection type air supply passage device of the present invention;

fig. 6 is a sectional view of the laminar return air duct assembly of the present invention (i.e., an enlarged view of a portion of fig. 1 at II);

FIG. 7 is a structural view of the laminar air return duct apparatus of the present invention;

FIG. 8 is a cross-sectional view of a return air duct of the present invention;

FIG. 9 is a cross-sectional view C-C of FIG. 7 of the present invention;

in the drawings: 1 side wall, 2 chamber tops, 3 fans, 4 heat exchangers, 5 first high-efficiency filters, 6 second high-efficiency filters, 7 gas flow regulating valves, 8 machine cases, 9 first static pressure blast pipes, 10 pressure equalizing plates, 11 first pressure equalizing holes, 12 first laminar flow blast pipes, 13 first laminar flow blast holes, 14 second laminar flow blast pipes, 15 second laminar flow blast holes, 16 second static pressure blast pipes, 17 second pressure equalizing holes, 18 pressure increasing layers, 19 return air pipes, 20 return air substrates, 21 chutes, 22C type surrounding plates, 23 primary filters, 24 sealing rings, 25 return air inlets, 26 return air holes, 27 clamping strips, 28 attaching plates, 29 drainage strips and 30 filter screens.

Detailed Description

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

As shown in fig. 1-9, a steady-state displacement air conditioning system comprises a steady-state displacement air supply device, an air supply channel device arranged at one end of an air outlet of the steady-state displacement air supply device, and a laminar air return channel device arranged at one end of an air inlet of the steady-state displacement air supply device; the steady-state displacement flow air supply device comprises a fan 3, a first high-efficiency filter 5 and a second high-efficiency filter 6 which are communicated with an air inlet of the fan 3, and a heat exchanger 4 which is communicated with an air outlet of the fan 3; the second high-efficiency filter 6 is communicated with the outside of the clean room; the air supply channel device is arranged along the top of the side wall 1 on one side of the longer length direction of the clean room; the air supply channel device is one of a positive pressure type air supply channel device and a reflection type air supply channel device; the positive pressure type air supply channel device comprises a first static pressure air supply pipe 9, a pressure equalizing plate 10 arranged at the lower end of the first static pressure air supply pipe 9 and a first laminar flow air supply pipe 12 arranged at the lower side of the pressure equalizing plate 10; first pressure equalizing holes 11 are uniformly distributed on the pressure equalizing plate 10; the section of the first laminar air supply pipe 12 is in a right-angled sector shape; the arc surface of the first laminar air supply pipe 12 is uniformly provided with first laminar air supply holes 13; the arc surface of the first laminar flow blast pipe 12 protrudes toward the center of the clean room; the axis of the first laminar air supply hole 13 is perpendicular to the arc surface of the first laminar air supply pipe 12; the reflection type air supply channel device comprises a second laminar flow air supply pipe 14 and a second static pressure air supply pipe 16 arranged in the second laminar flow air supply pipe 14; the section of the second laminar air supply pipe 14 is a right-angled fan shape; second laminar air supply holes 15 are uniformly distributed on the arc surface of the second laminar air supply pipe 14; second pressure equalizing holes 17 are uniformly distributed on the second static pressure blast pipe 16; the second pressure equalizing hole 17 is arranged on the side back to the second laminar air supply hole 15; the axis of the second laminar air supply hole 15 is perpendicular to the arc surface of the second laminar air supply pipe 14; the arc surface of the second laminar flow blast pipe 14 protrudes toward the center of the clean room;

the laminar air return channel device is arranged on the side wall 1 on the other side of the clean room in the longer length direction; the laminar flow return air channel device comprises a return air pipe 19 connected with the first high-efficiency filter 5 and a return air inlet 25 arranged at the lower end of the return air pipe 19; air return holes 26 are uniformly distributed on the surface of the air return opening 25; the air return opening 25 is arranged at the bottom of the cleaning chamber side wall 1 in the diagonal direction of the laminar air supply channel device. The steady-state displacement flow air supply device also comprises an external shell 8; the heat exchanger 4 is an evaporator; a pressure increasing layer 18 is arranged on the upper side of the pressure equalizing plate or on the outer side of the second static pressure blast pipe 16 and is used for increasing the air pressure difference on the two sides of the pressure equalizing plate so as to balance the air flow velocity on each part of the pressure equalizing plate 10; the pressurizing layer 18 is polyester fiber cloth; the laminar flow return air channel device also comprises a primary filter 23 arranged above a return air inlet 25 in the return air pipe 19; the primary filter 23 is a bag filter; a sealing ring 24 is arranged on the peripheral wall of the bag filter to ensure that all air flowing through the return air pipe 19 is filtered by the primary filter 23; the air return port 25 is connected to the lower end of the air return pipe 19 in a sliding manner; the air return pipe 19 comprises a return air substrate 20 fixed on the side wall 1 of the cleaning chamber and a C-shaped coaming 22 connected on the return air substrate 20 in a sealing way; sliding grooves 21 are formed in the two sides of the return air base plate 20; the lower end of the return air base plate 20 protrudes out of the lower edge of the arc-shaped coaming; the air return opening 25 is an arc-shaped cover matched with the air return pipe 19, and the inner wall of the arc-shaped cover is attached to the outer wall of the arc-shaped enclosing plate; the two sides of the inner wall of the arc-shaped cover are provided with clamping strips 27 which are in sliding fit with the sliding grooves 21; a filter screen 30 is arranged on the inner side of the air return opening 25 to prevent insects and ants from entering the laminar flow air return channel device; the steady-state displacement flow air conditioning system also comprises an attachment plate 28 arranged outside the air supply channel device; the attaching plate 28 is fixedly connected to the side wall 1 or the roof 2 of the clean room; a plurality of ridge-shaped drainage strips 29 are arranged on the attaching plate 28; the high end of the drainage strip 29 is arranged corresponding to the first air supply hole or the second air supply hole; the other end of the drainage strip 29 is tangent to the side wall 1 or the roof 2 of the clean room; and a gas flow regulating valve 7 is arranged on one side of the second high-efficiency filter 6.

The embodiments described above are only preferred embodiments of the utility model and are not exhaustive of the possible implementations of the utility model. Any obvious modifications to the above would be obvious to those of ordinary skill in the art, but would not bring the utility model so modified beyond the spirit and scope of the present invention.

Claims (8)

1. A steady state displacement flow air conditioning system, characterized by: the device comprises a steady-state displacement flow air supply device, an air supply channel device arranged at one end of an air outlet of the steady-state displacement flow air supply device and a laminar air return channel device arranged at one end of an air inlet of the steady-state displacement flow air supply device;

the steady-state displacement flow air supply device comprises a fan (3), a first high-efficiency filter (5) and a second high-efficiency filter (6) which are communicated with an air inlet of the fan (3), and a heat exchanger (4) which is communicated with an air outlet of the fan (3);

the air supply channel device is arranged along the top of the side wall (1) on one side of the clean room;

the air supply channel device is one of a positive pressure type air supply channel device and a reflection type air supply channel device;

the positive pressure type air supply channel device comprises a first static pressure air supply pipe (9), a pressure equalizing plate (10) arranged at the lower end of the first static pressure air supply pipe (9) and a first laminar flow air supply pipe (12) arranged on the lower side of the pressure equalizing plate (10);

first pressure equalizing holes (11) are uniformly distributed on the pressure equalizing plate (10);

first laminar flow air supply holes (13) are uniformly distributed on the arc surface of the first laminar flow air supply pipe (12);

the axis of the first laminar air supply hole (13) is vertical to the arc surface of the first laminar air supply pipe (12);

the reflection type air supply channel device comprises a second laminar flow air supply pipe (14) and a second static pressure air supply pipe (16) arranged in the second laminar flow air supply pipe (14);

second laminar flow air supply holes (15) are uniformly distributed on the arc surface of the second laminar flow air supply pipe (14);

second pressure equalizing holes (17) are uniformly distributed on the second static pressure blast pipe (16);

the second pressure equalizing hole (17) is formed in the side, back to the second laminar air supply hole (15);

the axis of the second laminar air supply hole (15) is vertical to the arc surface of the second laminar air supply pipe (14);

the laminar air return channel device is arranged on the side wall (1) at the other side of the clean room;

the laminar flow return air channel device comprises a return air pipe (19) connected with the first high-efficiency filter (5) and a return air inlet (25) arranged at the lower end of the return air pipe (19);

air return holes (26) are uniformly distributed on the surface of the air return opening (25);

the air return opening (25) is arranged at the bottom of the cleaning chamber side wall (1) in the diagonal direction of the laminar flow air supply channel device.

2. The steady state displacement flow air conditioning system as claimed in claim 1, wherein: the steady-state displacement flow air supply device also comprises an external shell (8);

the heat exchanger (4) comprises at least one of: an evaporator, a condenser and an electric heating wire.

3. The steady state displacement flow air conditioning system as claimed in claim 1, wherein:

a pressure increasing layer (18) is arranged on the upper side of the pressure equalizing plate (10) or on the outer side of the second static pressure blast pipe (16);

the pressure increasing layer (18) is selected from at least one of the following: glass fiber cloth, polyester fiber cloth and nylon cloth.

4. A steady state displacement flow air conditioning system as claimed in claim 3, wherein:

the laminar flow return air channel device also comprises a primary filter (23) arranged above a return air inlet (25) in the return air pipe (19);

the primary filter (23) comprises at least one of: bag filters, pleated filters, and panel filters.

5. A steady state displacement flow air conditioning system as claimed in claim 3 or 4, wherein:

the air return port (25) is connected to the lower end of the air return pipe (19) in a sliding manner;

the air return opening (25) is an arc-shaped cover matched with the air return pipe (19).

6. The steady state displacement flow air conditioning system as claimed in claim 1, wherein:

and a filter screen (30) is arranged on the inner side of the air return opening (25).

7. The steady state displacement flow air conditioning system as claimed in claim 6, wherein:

the air supply device also comprises an attaching plate (28) arranged at the outer side of the air supply channel device;

the attaching plate (28) is fixedly connected to the side wall (1) or the roof (2) of the clean room;

the attaching plate (28) is provided with a plurality of ridge-shaped drainage strips (29).

8. The steady state displacement flow air conditioning system as claimed in claim 1, wherein:

and a gas flow regulating valve (7) is arranged on one side of the second high-efficiency filter (6).

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