CN210292194U

CN210292194U - Fresh air system capable of automatically keeping room air volume constant

Info

Publication number: CN210292194U
Application number: CN201921183887.7U
Authority: CN
Inventors: 李京飞
Original assignee: Yantai Renhe Construction New Technology Development Co Ltd
Current assignee: Yantai Renhe Construction New Technology Development Co Ltd
Priority date: 2019-07-25
Filing date: 2019-07-25
Publication date: 2020-04-10
Anticipated expiration: 2029-07-25

Abstract

The utility model discloses an automatic new trend system of invariable room amount of wind, including new trend import, new fan unit, a plurality of tuber pipe and a plurality of new trend export that is located the room, still including accuse wind unit, the quantity of accuse wind unit corresponds with the quantity of new trend export, and accuse wind unit sets up in the one side that is close to the new trend export, and wherein, accuse wind unit includes air regulation module, and wind flows into the room through accuse wind unit through new trend export. The air quantity control device has the advantages that the air quantity control units are arranged on the inner sides of the fresh air outlets, a manufacturer can set the constant air quantity of the air quantity control units according to the requirements of customers, a user does not need to adjust each manual adjusting valve one by one after the air quantity control device is installed, and the air quantity is always constant in the using process.

Description

Fresh air system capable of automatically keeping room air volume constant

Technical Field

The utility model relates to a ventilation technology field especially relates to an automatic new trend system of invariable room amount of wind.

Background

In air conditioning and ventilation projects such as hospitals, office buildings, schools, large ships and the like, the specifications and the sizes of the fresh air and the exhaust branch pipes of rooms are very small, and the air distribution is difficult to debug. The air volume balance structure of the air supply system of the traditional house uses a common air volume adjusting valve, for example, the air volume balance structure of the air supply system of the Chinese patent publication with the patent number of CZ201520666460.8 adopts a quantitative air volume valve and a manual air volume valve, the air volume in a pipeline branch is preliminarily controlled through the quantitative air volume valve, the manual air volume valve is arranged at an air port terminal, however, the air volume of other rooms can be influenced to change when the air volume of the adjacent rooms is debugged after the air volume of a certain room is debugged, so that the requirement can be met by repeated debugging, a large amount of labor cost is wasted, and the engineering period is prolonged.

Another problem of the current centralized fresh air system is that the resistance of the fresh air filter is increased due to gradual blockage in the operation process, so that the pressure of the fresh air pipeline system is reduced, and the unequal proportion of the air volume of a room is reduced in the process.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to provide an automatic invariable room amount of wind's new trend system utilizes the air regulation module who sets for, all sets for invariable amount of wind to every new trend export, need not to adjust one by one.

The purpose of the utility model is realized by adopting the following technical scheme:

the utility model provides an automatic invariable room amount of wind's new trend system, includes new trend import, new trend unit, a plurality of tuber pipe and a plurality of new trend exports that are located the room, still includes accuse wind unit, the quantity of accuse wind unit with the quantity of new trend export corresponds, accuse wind unit sets up in the one side that is close to the new trend export, wherein, accuse wind unit includes the air regulation module, and wind passes through accuse wind unit warp the new trend export flows into the room.

Preferably, the air control unit further comprises an outer shell adapted to the air pipe, the air volume adjusting module comprises an inner shell and a restrictor plate assembly located in the inner shell, and the restrictor plate assembly comprises an air control plate, an adjusting plate, an air bag and an elastic piece; the air control plate is rotationally connected with the inner wall of the inner shell; the air bag is arranged behind the air control plate, and holes are formed in the air control plate; the holes are communicated with the wind control plate and arranged towards the windward side; the adjusting plate is positioned below the air bag, and the lower end of the adjusting plate is rotatably connected with the inner wall of the inner shell; the elastic piece is located the accuse aerofoil with the below of regulating plate, and one end with the lower extreme of accuse aerofoil is connected, the other end with the upper end of regulating plate is connected.

Preferably, the outer side of the outer shell is provided with a mounting flange for fixedly connecting the air pipes at two sides.

Preferably, the inner shell and the outer shell are nested, the wind control plate in the inner shell is circular, and the adjusting plate is semicircular.

Preferably, the inner sides of the two ends of the outer shell and the inner shell are provided with sealing heat insulation blocks.

Preferably, the fresh air system further comprises a first filter and a plurality of second filters, the first filter is arranged between the fresh air inlet and the fresh air unit, and the second filters are located in the fresh air unit.

Preferably, a blockage rate detection device is arranged in each of the first filter and the second filter, and the blockage rate detection device is a pressure sensor or an airflow sensor.

Preferably, the air control unit is detachably connected with the fresh air outlet and the air pipe respectively.

Preferably, an annular mounting step is arranged on one side, close to the fresh air outlet, in the air pipe, and the fresh air outlet is detachably connected with the air pipe and presses and fixes the air control unit on the annular mounting step; an annular extension block is arranged on the outer wall of the shell of the wind control unit and is abutted against the mounting step; and a sealing ring is arranged between the annular extension block and the mounting step.

Preferably, a silencer is arranged between the air pipes.

Compared with the prior art, the beneficial effects of the utility model reside in that: the utility model discloses all set up air regulation module in every new trend export inboard, the producer can set up air regulation module's invariable air output according to customer needs, need not the user and has adjusted every manual regulation valve one by one after having installed, remains the amount of wind invariable throughout in the use.

Drawings

Fig. 1 is a schematic structural diagram of a fresh air system according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a wind control unit according to an embodiment of the present invention;

fig. 3 is a schematic view of a connection structure between the air control unit and the air duct according to another embodiment of the present invention.

In the figure: 10. a fresh air inlet; 11. a fresh air handling unit; 12. an air duct; 13. a fresh air outlet; 14. a first filter; 15. a second filter; 16. mounting a step in an annular manner; 17. a muffler; 20. a wind control unit; 21. an outer housing; 211. installing a flange; 212. an annular extension block; 22. an air quantity adjusting module; 221. a wind control plate; 222. an adjusting plate; 223. an air bag; 224. an aperture; 225. an elastic member; 226. an inner housing; 23. sealed heat insulation block

Detailed Description

The present invention will now be described in more detail with reference to the accompanying drawings, and it is to be understood that the following description of the present invention is made only by way of illustration and not by way of limitation with reference to the accompanying drawings. The various embodiments may be combined with each other to form other embodiments not shown in the following description.

In the description of the present invention, it should be noted that, for the orientation words, if there are terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the orientation and positional relationship indicated are based on the orientation or positional relationship shown in the drawings, and only for the convenience of describing the present invention and simplifying the description, it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and not be construed as limiting the specific scope of the present invention.

Furthermore, if the terms "first" and "second" are used for descriptive purposes only, they are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. Thus, the definition of "a first" or "a second" feature may explicitly or implicitly include one or more of the features, and in the description of the invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "assembled", "connected", and "connected", if any, are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; or may be a mechanical connection; the two elements can be directly connected or connected through an intermediate medium, and the two elements can be communicated with each other. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.

As shown in fig. 1, the fresh air system for automatically keeping room air volume constant of the present embodiment includes a fresh air inlet 10, a fresh air unit 11, a plurality of air pipes 12, a plurality of fresh air outlets 13 located in a room, and an air control unit 20, wherein the number of the air control unit 20 corresponds to the number of the fresh air outlets 13, the air control unit 20 is disposed at a side close to the fresh air outlets 13, the air control unit 20 includes an air volume adjusting module 22, and air flows into the room through the fresh air outlets 13 via the air control unit 20. Each fresh air outlet 13 is correspondingly provided with an air volume adjusting module 22, and the set air volume adjusting module is utilized to realize constant air volume in a room without manual adjustment of a user.

Preferably, the air control unit 20 of the present embodiment further includes an outer casing 21 adapted to the air duct 12, the air volume adjusting module 22 includes an inner casing 226 and a restrictor plate assembly located in the inner casing 226, the restrictor plate assembly includes an air control plate 221, an adjusting plate 222, an air bag 223 and an elastic member 225; the air control plate 221 is rotatably connected with the inner wall of the shell, the rotating shaft is positioned in the middle of the air control plate 221, and two ends of the rotating shaft are connected with the inner wall of the shell; the wind control plate 221 is arranged towards the windward side, and the air bag 223 is arranged behind the wind control plate 221 and is provided with a hole 224; the hole 224 is communicated with the wind control plate 221 and is arranged towards the windward side; the adjusting plate 222 is positioned below the air bag 223, and the lower end is rotatably connected with the inner wall of the shell; the elastic member 225 is located below the wind control plate 221 and the adjustment plate 222, and has one end connected to the lower end of the wind control plate 221 and the other end connected to the upper end of the adjustment plate 222. Preferably, the elastic member 225 is a spring plate, so that the resetting is more flexible.

When a certain amount of wind flows into the wind volume adjusting module 22, a gas pressure is formed on the windward side of the wind control plate 221, the air bag 223 is inflated through the small hole 224 of the air bag 223, the air bag 223 expands to push the wind control plate 221 to rotate in the closing direction, and at the moment, the spring piece generates an elastic force in the opposite direction to block the wind control plate 221 from rotating. In the case of a fixed air volume, after the closing force generated by the air control plate 221 and the opening reaction force generated by the spring piece are balanced, the position of the adjusting plate 222 is marked and fixed, and thus the air volume setting of the air control unit 20 is completed. After the air volume adjusting module 22 is arranged at the fresh air outlet 13, the airflow flowing into the branch pipe passes through the air control plate 221, and the airflow with the set air volume is output without manual adjustment by a user. Meanwhile, when the fresh air in one or more rooms is changed or closed, the pressure in the air pipe 12 and the pressure in the pipe fitting are changed, but the unchanged or closed air control unit 20 can automatically sense the pressure change and adjust the self resistance, so that the air quantity flowing through the air control unit 20 is kept constant.

In addition, the fresh air system of the embodiment further includes a first filter 14 and a second filter 15, the first filter 14 is disposed between the fresh air inlet 10 and the fresh air handling unit 11, and is used for filtering dust in the outside air; the second filter 15 is arranged in the fresh air handling unit 11, and the filtering efficiency is higher than that of the first filter 14.

In the long-term operation process, due to the dust blockage on the first filter 14 and the second filter 15, the pressure in the air pipe 12 is reduced, when the pressure acting on the air adjusting plate is reduced, the pressure in the inflated air bag 223 is greater than the external pressure of the small hole 224, so that air flows out, the air bag 223 is reduced, at the moment, the spring sheet pushes the air adjusting plate to rotate towards the opening direction, finally, new balance is achieved, and at the moment, the air quantity flowing through the air control unit 20 is kept unchanged. Conversely, when the wind pressure acting on the air control plate 221 increases, the air bag 223 is inflated to generate a closing force on the air control plate 221, and the reaction force of the spring piece at this time can block the closing of the air control plate 221, so as to finally achieve a new balance and keep the wind quantity constant.

Compared with the method of controlling the fresh air volume of a room by arranging a common air volume adjusting valve on a fresh air branch pipe at present, the air volume adjusting module 22 of the embodiment can save fussy air volume debugging work in engineering construction and installation engineering, save labor cost and shorten construction period. Especially, in the operation process, the common air volume regulating valve has no solution to the distribution change of fresh air volume generated after the pressure of a pipeline system is reduced, and only exists in the operation process as the inherent defect of the system, after the air volume control valve is replaced by the air control unit 20 with the self-balancing function, the inherent defect of the common air volume regulating valve is overcome, the fresh air volume of a room is ensured to be stable after the resistance is reduced, and the air quality in the building room is powerfully guaranteed.

As shown in fig. 1, the air control unit 20 of the present embodiment can be fixedly connected to the air duct 12, and more specifically, a mounting flange 211 is provided at the outer side of the outer casing 21 for fixedly connecting the air ducts 12 at two sides. The air control unit 20 is arranged between the air pipes 12 at the two ends, and then the fresh air outlet 13 is fixedly connected with the air pipe 12 close to one side of the room.

In addition, in order to avoid that the system pressure continuously drops and influences the normal use of the fresh air system, blockage rate detection devices (not shown) are arranged in the first filter 14 and the second filter 15, the blockage rate detection devices are pressure sensors or airflow sensors, the blockage rate is judged by comparing the pressure or airflow flow rate of the two sides of the filters, and then a message is sent to a control center to remind a user to replace or clean the filters.

Preferably, for the convenience of maintenance or adjustment and replacement of the air control unit 20, the air control unit 20 is detachably connected with the fresh air outlet 13 and the air pipe 12 respectively. As shown in fig. 3, the connection structure of the air control unit 20, the air pipe 12 and the fresh air outlet 13 is as follows, one side of the inside of the air pipe 12 close to the fresh air outlet 13 is provided with an annular mounting step 16, the fresh air outlet 13 is detachably connected with the air pipe 12 and presses and fixes the air control unit 20 on the annular mounting step 16, the fresh air outlet 13 in the description of the embodiment includes an air pipe 12 branch pipe at one end, and the air pipe 12 branch pipe and the air pipe 12 at the other end clamp the air volume adjusting module 22; an annular extension block 212 is arranged on the outer wall of the outer shell 21 of the air control unit 20, the annular extension block 212 abuts against the installation step, and a sealing ring (not shown) is arranged between the annular extension block 212 and the installation step, so that the sealing performance is ensured, and the air flow is prevented from leaking from the pipeline wall. Preferably, the outer casing 21 is shaped to fit the air duct 12, the inner casing 226 is cylindrical, the air control plate 221 is circular, and the adjustment plate 222 is semicircular, so as to prevent the air control plate 221 and the adjustment plate 222 from scraping the inner wall of the inner casing 226.

In addition, the outer shell 21 of the air control unit 20 of the present embodiment is nested with the inner shell 226 of the air volume adjusting module 22 therein, the inner shell 226 is cylindrical, and the outer shell 21 and the inner shell 226 form a double-layer hollow structure, which has heat preservation and insulation functions; meanwhile, the sealing and heat insulation blocks 23 are arranged at the two ends of the outer shell 21 and the inner shell 226, so that the heat insulation function and the sealing property are further enhanced.

Preferably, the fresh air system of the present embodiment further includes a silencer 17 for reducing noise in the air duct 12. The silencer 17 is arranged between the two end air pipes 12 close to the fresh air inlet 10, and can also be arranged between any two end air pipes 12 of other long-distance transmission. The number of the silencers 17 is properly increased, the cost of the whole fresh air system is controlled, and meanwhile, the noise of the whole fresh air system is ensured to be within a reasonable range.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.

Claims

1. The utility model provides an automatic new trend system of invariable room amount of wind which characterized in that: including new trend import, fresh air unit, a plurality of tuber pipe and a plurality of new trend export that is located the room, still include accuse wind unit, the quantity of accuse wind unit with the quantity of new trend export corresponds, accuse wind unit sets up in the one side that is close to the new trend export, wherein, accuse wind unit includes air regulation module, and wind passes through accuse wind unit warp the new trend export flows into the room.

2. An automatic constant room air volume fresh air system as claimed in claim 1, wherein: the air control unit also comprises an outer shell matched with the air pipe, the air quantity adjusting module comprises an inner shell and a flow limiting plate assembly positioned in the inner shell, and the flow limiting plate assembly comprises an air control plate, an adjusting plate, an air bag and an elastic piece; the air control plate is rotationally connected with the inner wall of the inner shell; the air bag is arranged behind the air control plate, and holes are formed in the air control plate; the holes are communicated with the wind control plate and arranged towards the windward side; the adjusting plate is positioned below the air bag, and the lower end of the adjusting plate is rotatably connected with the inner wall of the inner shell; the elastic piece is located the accuse aerofoil with the below of regulating plate, and one end with the lower extreme of accuse aerofoil is connected, the other end with the upper end of regulating plate is connected.

3. An automatic constant room air volume fresh air system as claimed in claim 2, wherein: and the outer side of the outer shell is provided with a mounting flange for fixedly connecting the air pipes at two sides.

4. An automatic constant room air volume fresh air system as claimed in claim 2, wherein: the inner shell and the outer shell are nested, the wind control plate in the inner shell is circular, and the adjusting plate is semicircular.

5. An automatic constant room air volume fresh air system as claimed in claim 2, wherein: the outer shell and the inner sides of the two ends of the inner shell are provided with sealed heat insulation blocks.

6. An automatic room air volume constant fresh air system as claimed in any one of claims 1 to 5, wherein: still include first filter and a plurality of second filter, first filter sets up the new trend import with between the new trend unit, the second filter is located the new trend unit.

7. An automatic constant room air volume fresh air system as claimed in claim 6, wherein: and blockage rate detection devices are arranged in the first filter and the second filter, and are pressure sensors or airflow sensors.

8. An automatic room air volume constant fresh air system as claimed in claim 1 or 2, wherein: the air control unit is detachably connected with the fresh air outlet and the air pipe respectively.

9. An automatic constant room air volume fresh air system as claimed in claim 8, wherein: an annular mounting step is arranged on one side, close to the fresh air outlet, in the air pipe, and the fresh air outlet is detachably connected with the air pipe and presses and fixes the air control unit on the annular mounting step; an annular extension block is arranged on the outer wall of the shell of the wind control unit and is abutted against the mounting step; and a sealing ring is arranged between the annular extension block and the mounting step.

10. An automatic room air volume constant fresh air system as claimed in any one of claims 1 to 5, wherein: and a silencer is arranged between the air pipes.