CN219182249U

CN219182249U - Greenhouse exhaust device with decompression mechanism

Info

Publication number: CN219182249U
Application number: CN202222485814.1U
Authority: CN
Inventors: 王莉; 蔡海华; 殷益明; 姚杰; 沈李平; 金勤生
Original assignee: Huzhou Agricultural Science And Technology Development Center
Current assignee: Huzhou Agricultural Science And Technology Development Center
Priority date: 2022-09-20
Filing date: 2022-09-20
Publication date: 2023-06-16
Anticipated expiration: 2032-09-20

Abstract

The utility model relates to the technical field of exhaust devices, in particular to a greenhouse exhaust device with a decompression mechanism, which comprises a metal pipe, wherein one end of the metal pipe, which is upwards connected with a shed roof, is an air inlet end, the other end of the metal pipe is an air outlet end, radiating pipes are sleeved on the air inlet end and the air outlet end of the metal pipe, annular radiating fins are arranged and installed on the radiating pipes, and steam drain valves and the decompression mechanism are arranged on the metal pipe in parallel. This kind of take greenhouse exhaust device of decompression mechanism, when steam trap blockked up, can exhaust through decompression mechanism, reduce the pressure in the tubular metal resonator to the security of equipment has been increased.

Description

Greenhouse exhaust device with decompression mechanism

Technical Field

The utility model relates to the technical field of exhaust devices, in particular to a greenhouse exhaust device with a decompression mechanism.

Technical Field

With the rapid development of modern agricultural production technology, heat preservation forcing culture is widely applied to grape production and takes up an increasingly important position. In order to advance the ripening period of the grapes and achieve the effect of early benefit of early marketing, various heating modes are adopted throughout the country, such as double-film heat preservation, film-covered diesel heating, film-covered steam pipeline heating and the like. The heating effect of the steam pipeline is remarkable, but the condition of overhigh temperature easily occurs in the heating process, so that an exhaust device is required to be arranged at the tail end of the whole pipeline system. When the temperature is too high, the exhaust valve is opened to exhaust and cool. Whereas existing exhaust devices exhaust through a single set of steam traps. However, the pipeline is used for about 2 months in one year, and when the pipeline is idle, the pipeline is easy to rust, so that a small amount of solid dregs are generated. Solid residue may clog the steam trap. When the drain valve is blocked, hot air in the metal pipe cannot be discharged in time, so that on one hand, the temperature in the greenhouse is continuously increased, and the tender tips of the grapes can be burnt at high temperature, so that normal growth and firmness are affected; on the other hand, the pressure in the pipe is increased, and potential safety hazards exist.

Disclosure of Invention

First, the technical problem to be solved

The utility model aims to at least solve one of the technical problems in the prior art, provides a greenhouse exhaust device with a decompression mechanism, and solves the problems that the temperature and the pressure in a greenhouse are increased and potential safety hazards exist because hot air in a metal pipe cannot be discharged when a steam trap is blocked in the market.

(II) technical scheme

The utility model adopts the following technical scheme for solving the technical problems: the greenhouse exhaust device with the decompression mechanism comprises a metal pipe, wherein one end of the metal pipe, which is upwards connected with a shed roof, is an air inlet end, the other end of the metal pipe is an air outlet end, radiating pipes are sleeved on the air inlet end and the air outlet end of the metal pipe, annular radiating fins are arranged on the radiating pipes in an arrayed mode, and steam drain valves and the decompression mechanism are arranged on the metal pipe in parallel;

the decompression mechanism comprises a metal shell, the metal shell is fixedly connected with a metal pipe, an air inlet is formed in the bottom of the metal shell, two air outlets are symmetrically formed in the surface of the metal shell, a supporting ring is mounted on the air inlet of the metal shell, round holes are formed in the circumferential arrangement of the surface of the supporting ring, two horizontally movable convex air blocking blocks are arranged at the top of the supporting ring and located on the inner side of the air outlet of the metal shell, two groups of springs are mounted on one side, close to the air outlet, of the metal shell, of each convex air blocking block, a semi-trapezoid groove is formed in one side, away from the air outlet, of each convex air blocking block, a vertically movable trapezoid block is arranged in each trapezoid groove, a threaded rod penetrating through the metal shell is mounted on the top of each trapezoid block, a threaded sleeve is sleeved on each threaded rod, and one end, far away from each trapezoid block, of each threaded rod is provided with a handle through a connecting rod and the metal shell.

Preferably, a plurality of aluminum cooling fins are arranged on the air inlet end and the air outlet end of the metal tube.

Preferably, the radiating pipes and the radiating fins are made of aluminum materials, and the distance between each two radiating fins is consistent, and is 3-5mm.

Preferably, the steam trap and the pressure reducing mechanism are fixedly connected through a flange.

Preferably, a sealing ring is arranged at the contact position of the threaded rod and the metal shell.

Preferably, the trapezoid body groove is matched with the trapezoid body block in size.

Preferably, the threaded rod is in threaded connection with the threaded sleeve.

(III) beneficial effects

In summary, the utility model has the following beneficial effects:

this big-arch shelter exhaust apparatus based on take decompression mechanism, when equipment normally works, the steam in the big-arch shelter is gone into from the air inlet end of tubular metal resonator, discharges steam through the steam trap, when the steam trap runs into the problem of jam, can be through decompression mechanism, make intraductal gas discharge in from decompression apparatus to solve on the market when the steam trap is blockked up, the intraductal gas of tubular metal resonator can't discharge, lead to the intraductal pressure to increase the problem, improved the security performance of equipment.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic diagram of a pressure reducing mechanism according to the present utility model;

FIG. 3 is a schematic cross-sectional view of the pressure relief mechanism of the present utility model;

in the figure: 1-metal pipe, 2-air inlet end, 3-air outlet end, 4-flange, 5-steam trap, 6-decompression mechanism, 7-aluminium fin, 8-metal shell, 9-air inlet, 10-air outlet, 11-support ring, 12-trapezoidal body groove, 13-protruding gas block, 14-trapezoidal body block, 15-threaded rod, 16-thread bush, 17-handle, 18-sealing ring, 19-spring.

Detailed Description

The present utility model will be described in detail below with reference to the drawings and the specific embodiments, so that those skilled in the art can better understand the technical solutions of the present utility model.

In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front," "rear," "head," "tail," and the like are used as an orientation or positional relationship based on that shown in the drawings, merely to facilitate description of the utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the utility model. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Referring to fig. 1 to 3, the utility model relates to a greenhouse exhaust device with a decompression mechanism, which comprises a metal pipe 1, wherein one end of the metal pipe 1, which is upwards connected with a roof, is an air inlet end 2, the other end of the metal pipe 1 is an air outlet end 3, radiating pipes 7 are sleeved on the air inlet end 2 and the air outlet end 3 of the metal pipe 1, annular radiating fins are arranged on the radiating pipes 7, and a steam drain valve 5 and a decompression mechanism 6 are arranged on the metal pipe 1 in parallel;

the decompression mechanism 6 comprises a metal shell 8, the metal shell 8 is fixedly connected with a metal tube 1, an air inlet 9 is formed in the bottom of the metal shell 8, two air outlets 10 are symmetrically formed in the surface of the metal shell 8, a supporting ring 11 is installed on the air inlet 9 of the metal shell 8, round holes are formed in the circumferential arrangement of the surface of the supporting ring 11, two horizontally moving convex air blocking blocks 13 are arranged at the top of the supporting ring 11, the two convex air blocking blocks 13 are located on the inner side of an air outlet 10 of the metal shell 8, two groups of springs 19 are installed on one side, close to the air outlet 10, of the metal shell 8, of the two convex air blocking blocks 13, a semi-trapezoid groove 12 is formed in one side, far away from the air outlet 10, of the two convex air blocking blocks 13, of the trapezoid groove 12 is embedded with a vertically moving trapezoid block 14, a threaded rod 15 penetrating through the metal shell 8 is installed at the top of the trapezoid block 14, a threaded sleeve 16 is sleeved on the threaded rod 15, and a handle 17 is installed at one end, far away from the trapezoid block 14, of the threaded rod 15 is fixedly connected with the metal shell 8.

It should be noted that, when the decompression mechanism 6 works, the rotating handle 17 drives the threaded rod 15 to rotate, the threaded rod 15 moves upwards under the action of the threaded sleeve 16, so as to drive the trapezoid block 14 to move upwards, the convex air blocking block 13 matched with the trapezoid block is separated from the metal shell 8 by the elastic force of the spring 19, the air outlet 10 of the metal shell 8 is exposed, hot air enters from the air inlet 9 of the metal shell 8, passes through the hole of the supporting ring 11, and finally is discharged from the air outlet 10 of the metal shell 8.

When the working principle is that hot air in the greenhouse enters from the air inlet end 2 of the metal pipe 1 and is discharged through the steam trap 5, when the steam trap 5 is blocked, the decompression mechanism 6 is started to work, the rotating handle 17 drives the threaded rod 15 to rotate, the threaded rod 15 moves upwards under the action of the threaded sleeve 16, the trapezoid block 14 is driven to move upwards, the matched convex air baffle 13 is separated from the metal shell 8 by the elastic force of the spring 19, the air outlet 10 of the metal shell 8 is exposed, hot air enters from the air inlet 9 of the metal shell 8, passes through the hole of the supporting ring 11 and is finally discharged from the air outlet 10 of the metal shell 8.

Although embodiments of the present utility model have been disclosed above, it is not limited to the details and embodiments shown and described, it is well suited to various fields of use for which the utility model would be readily apparent to those skilled in the art, and accordingly, the utility model is not limited to the specific details and illustrations shown and described herein, without departing from the general concepts defined in the claims and their equivalents.

Claims

1. The greenhouse exhaust device with the decompression mechanism comprises a metal pipe (1) and is characterized in that one end, which is upwards connected with a shed roof, of the metal pipe (1) is an air inlet end (2), the other end of the metal pipe (1) is an air outlet end (3), radiating pipes (7) are sleeved on the air inlet end (2) and the air outlet end (3) of the metal pipe (1), annular radiating fins are arranged on the radiating pipes (7), and steam drain valves (5) and the decompression mechanism (6) are arranged on the metal pipe (1) in parallel;

the decompression mechanism (6) comprises a metal shell (8), the metal shell (8) is fixedly connected with a metal pipe (1), an air inlet (9) is formed in the bottom of the metal shell (8), two air outlets (10) are symmetrically formed in the surface of the metal shell (8), a supporting ring (11) is mounted on the air inlet (9) of the metal shell (8), round holes are formed in the circumferential arrangement of the surface of the supporting ring (11), two convex air blocking blocks (13) capable of horizontally moving are arranged at the top of the supporting ring (11), the two convex air blocking blocks (13) are located on the inner side of the air outlet (10) of the metal shell (8), two groups of springs (19) are mounted on one side, close to the air outlet (10) of the metal shell (8), of the two convex air blocking blocks (13) are far away from the air outlet (10), a half trapezoid groove (12) is formed in the inner side of the trapezoid groove (12), a threaded rod (15) penetrating through the metal shell (8) is mounted at the top of the trapezoid block (14), a threaded rod (16) is sleeved with a threaded rod (16) in a threaded mode, the end of the threaded rod (15) far away from the trapezoid body block (14) is provided with a handle (17).

2. The greenhouse exhaust device with a decompression mechanism as claimed in claim 1, wherein: and a plurality of aluminum radiating fins are arranged on the air inlet end (2) and the air outlet end (3) of the metal pipe (1).

3. The greenhouse exhaust device with a decompression mechanism as claimed in claim 2, wherein: the radiating pipes (7) and the radiating fins are made of aluminum materials, the distance between each two radiating fins is consistent, and the distance is 3-5mm.

4. The greenhouse exhaust device with a decompression mechanism as claimed in claim 1, wherein: the steam trap (5) and the pressure reducing mechanism (6) are fixedly connected through a flange (4).

5. The greenhouse exhaust device with a decompression mechanism as claimed in claim 1, wherein: a sealing ring (18) is arranged at the contact position of the threaded rod (15) and the metal shell (8).

6. The greenhouse exhaust device with a decompression mechanism as claimed in claim 1, wherein: the trapezoid body groove (12) is matched with the trapezoid body block (14) in size.

7. The greenhouse exhaust device with a decompression mechanism as claimed in claim 1, wherein: the threaded rod (15) is in threaded connection with the threaded sleeve (16).