CN217936815U

CN217936815U - Exhaust pipe of cage utensil is kept apart in independent air supply

Info

Publication number: CN217936815U
Application number: CN202222390149.8U
Authority: CN
Inventors: 杨亭; 闫俊艳; 叶莎莎; 胡日强
Original assignee: Childrens Hospital of Chongqing Medical University
Current assignee: Childrens Hospital of Chongqing Medical University
Priority date: 2022-09-08
Filing date: 2022-09-08
Publication date: 2022-12-02
Anticipated expiration: 2032-09-08

Abstract

The utility model provides an exhaust pipe of cage utensil is kept apart in independent air supply, including a pipe body, be provided with the air inlet joint on the body, the body includes outer tube and inner tube, and the inner tube is located the outer tube inner chamber, and the inner tube comprises a plurality of fill shape pipeline sections of arranging in succession, and all fill shape pipeline section inner chambers communicate with each other, and the air inlet connects the intercommunication fill shape pipeline section inner chamber, and the fill shape pipeline section includes the first straight section that top-down set up, first oblique section and the straight section of second, and the straight section internal diameter of second is less than first straight section internal diameter, and the first straight section of next-level fill shape pipeline section is connected to the bottom of last-level fill shape pipeline section. The utility model provides an exhaust pipe can subside dusty gas separation with the help of the cyclone principle, has not only saved the filter screen of cage box air exit and the process of frequent change to can not cause the air exit to block up, reduced use cost by a wide margin.

Description

Exhaust pipe of cage utensil is kept apart in independent air supply

Technical Field

The utility model relates to an IVC type isolation cage utensil of independently supplying air, concretely relates to exhaust pipe of isolation cage utensil of independently supplying air.

Background

At present, a relatively high-end experimental animal feeding cage in the market is mainly an IVC type independent air supply isolation cage, the independent air supply isolation cage mainly comprises an air supply system, an air exhaust system, a cage frame and a cage box, the air supply system and the air exhaust system both adopt an inlet fan, the cage frame adopts an inlet stainless steel 304 special pipe, the cage box adopts polysulfone PSU transparent material produced by Germany Bayer company, and the cage has the advantages of high temperature resistance, 150 ℃, 15 pounds of pressure, no deformation and no breakage after 15 minutes. The cage adopts a static pressure breeze technology to distribute clean air into a single cage box, the air intake and exhaust adopts a high-efficiency filtration that the sterility grade of a Chinese and foreign joint China and resource Huatai air filter reaches 99.99 grades, a user can automatically adjust the air exchange times in the cage per hour, the air in the cage is discharged outdoors after being efficiently filtered, the health of operators is protected, the air flow rate in the cage is less than 0.13m/s, and the running noise is less than 49dB; the independent air supply feeding system (IVC) can ensure that air entering the animal feeding unit is effectively filtered, each feeding unit in the same system can be maintained to be relatively independent and not interfered with each other, the level of the system is 100 under a static common environment, and the level of the system is 100 under a positive and negative pressure static environment.

Although the independent air supply isolation cage has excellent performance, the independent air supply isolation cage still has some problems in the using process, including: the exhaust pipe of the exhaust system is provided with dust which comes from packing materials in the cage box exhausted along with wind, and even if the filter screen is arranged at the exhaust outlet of some cage box products, the filter screen is extremely easy to block, the filter screen needs to be frequently replaced, and the exhaust system is very troublesome and high in cost.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an exhaust pipe of cage utensil is kept apart in independent air supply for "need often change the filter screen in solving current cage utensil use is kept apart in independent air supply," very troublesome and with high costs "technical problem.

In order to achieve the above purpose, the present invention adopts the following technical solution.

The utility model provides an exhaust pipe of cage utensil is kept apart in independent air supply, includes the body, is provided with air inlet joint, its characterized in that on the body: the body includes outer tube and inner tube, and the inner tube is located the outer tube inner chamber, and the inner tube comprises a plurality of fill shape pipeline sections of arranging in succession, and all fill shape pipeline section inner chambers communicate with each other, and the air inlet connects the fill shape pipeline section inner chamber, and fill shape pipeline section includes first straight section, first oblique section and the straight section of second that top-down set up, and the straight section internal diameter of second is less than first straight section internal diameter, and the first straight section of next stage fill shape pipeline section is connected to the bottom of last stage fill shape pipeline section.

In order to better realize the self-sedimentation of dust in the exhaust pipe, the bucket-shaped pipe section consists of a first straight section, a first inclined section, a second straight section and a second inclined section which are arranged from top to bottom, and the diameter of the upper end of the second inclined section is smaller than that of the lower end of the second inclined section.

As the utility model discloses preferred scheme, first straight section top surface is provided with porosely, and the diameter in hole equals the oblique section lower extreme internal diameter of second.

As the utility model discloses preferred scheme, first straight section lateral wall is provided with the fresh air inlet, and the outer tube lateral wall is provided with the through-hole, and the air inlet connects wears to establish simultaneously, fixes in through-hole and fresh air inlet department.

In order to better realize the self-sedimentation of the dust in the exhaust pipe, the air inlet hole is close to the top wall of the first straight section.

As the preferred scheme of the utility model, first straight section roof is perpendicular with fill shape pipeline section axis.

As the utility model discloses preferred scheme, the cooperation mode of inner tube and outer tube is close clearance fit, and clearance volume control is within 1 mm.

As the utility model discloses preferred scheme, the air inlet connects and is threaded connection with the connected mode of through-hole and fresh air inlet.

Furthermore, the top surface of the bucket-shaped pipe section positioned at the top of the inner pipe is provided with a filter screen, the bottom of the outer pipe is connected with a pipe cap in a matching way, and the bottom end of the pipe cap is a hollow net or water is contained in the pipe cap. The pipe cap for containing water is more favorable for settling, and the cleaning frequency of the inner pipe can be greatly reduced.

As the preferred proposal of the utility model, the inner tube and the outer tube are stainless steel tubes.

Has the advantages that: when the dust-containing air exhaust pipe is used, dust-containing gas exhausted along with wind enters the first straight section inner cavity of the inner pipe through the air inlet connector, then the part of dust-containing gas is divided into inner cyclone (low-density dust-free gas) and outer cyclone (high-density dust-containing gas) to flow, the inner cyclone axially upwards rotates along the inner pipe until entering the main exhaust pipe, the outer cyclone downwards rotates along the inner wall of the inner pipe until entering the bottom of the inner pipe, and accordingly dust in exhaust air is separated and settled, therefore, the air exhaust pipe provided by the utility model can separate and settle the dust-containing gas by means of the cyclone separation principle, not only saves a filter screen of an air outlet of a cage box and a frequently-replaced process, and cannot cause the blockage of the air outlet, greatly reduces the use cost, but also enables the wind entering the main exhaust pipe to be cleaner, and even can be directly introduced into the main intake pipe for recycling, and is favorable for further reducing the use cost; the utility model provides an exhaust pipe is convenient for wash, pull down the pipe cap earlier and take out the inner tube before the washing, then wash/blast wash can.

Drawings

FIG. 1 is a schematic view of an exhaust duct for the isolated air supply cage in embodiment 1;

FIG. 2 is a first schematic view of the inner tube of the exhaust duct in embodiment 1;

FIG. 3 is a second schematic view of the inner tube of the exhaust duct in example 1;

FIG. 4 is an enlarged view of the exhaust duct A of FIG. 1;

fig. 5 is a schematic view of an exhaust duct for the isolated blowing cage in embodiment 2.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and specific embodiments, but the following description of the embodiments is only for the purpose of helping to understand the principle and the core idea of the present invention, and is not intended to limit the scope of the present invention. It should be noted that modifications made to the present invention by those of ordinary skill in the art without departing from the principles of the present invention are also within the scope of the claims.

Example 1

Referring to fig. 1 to 4, an exhaust pipe of isolated air supply isolation cage utensil, including the body, be provided with air inlet joint 4 on the body, the body includes outer tube 1 and

inner tube

2, 2 tops of inner tube are supported and are leaned on limiting plate 3, limiting plate 3 middle part is equipped with the passageway and is used for communicateing exhaust pipe main pipe and the inner tube 2 inner chamber, inner tube 2 is located outer tube 1 inner chamber, inner tube 2 comprises a plurality of fill shape pipeline sections 20 of arranging in succession, all fill shape pipeline section 20 inner chambers communicate, air inlet joint 4 communicates fill shape pipeline section 20 inner chamber, fill shape pipeline section 20 comprises top-down set up first straight section 21, first oblique section 22, second straight section 23 and second oblique section 24, and second oblique section 24 upper end diameter is less than second oblique section 24 lower extreme diameter, and second straight section 23 internal diameter is less than first straight section 21 internal diameter, the first straight section 21 of next stage fill shape pipeline section 20 is connected to the bottom of last one-level fill shape pipeline section 20.

In this embodiment, the top surface 25 of the first straight section 21 is provided with a hole 26, and the diameter of the hole 26 is equal to the inner diameter of the lower end of the second inclined section 24. The side wall of the first straight section 21 is provided with an air inlet hole 6, the side wall of the outer pipe 1 is provided with a through hole 5, and the air inlet joint 4 simultaneously penetrates through and is fixed at the through hole 5 and the air inlet hole 6. The air inlet holes 6 are close to the top wall of the first straight section 21. The top wall of the first straight section 21 is perpendicular to the axis of the bucket-shaped pipe section 20. The matching mode of the inner pipe 2 and the outer pipe 1 is small clearance fit, and the clearance is controlled within 1 mm. The air inlet joint 4 is in threaded connection with the through hole 5 and the air inlet hole 6.

In this embodiment, the filter screen 28 is disposed on the top surface of the bucket-shaped pipe section 20 at the top of the inner pipe 2, the filter screen 28 is substantially installed between the top of the inner pipe 2 and the limiting plate 3, the bottom of the outer pipe 1 is connected with the pipe cap 27 in a matching manner, and the pipe cap 27 contains water.

In this embodiment, the inner tube 2 and the outer tube 1 are both stainless steel tubes, the outer tube 1 is a circular tube, and the first straight section 21 and the second straight section 23 of the inner tube are both cylindrical.

When the dust-containing air exhausting device is used, dust-containing air exhausted along with wind enters an inner cavity of the first straight section 21 of the inner pipe through the air inlet connector 4, then the part of dust-containing air is divided into inner cyclone (low-density dust-free air) and outer cyclone (high-density dust-containing air) to flow, the inner cyclone axially upwards rotates along the inner pipe 2 until entering the air exhaust main pipe, the outer cyclone downwards rotates along the inner wall of the inner pipe 2 until reaching the bottom of the inner pipe, so that dust in the air exhaust is separated and settled into water in the pipe cap 27, the air exhaust pipe can separate and settle the dust-containing air by means of a cyclone separation principle, a filter screen of an air outlet of a cage box and a frequently-replaced process are omitted, the air outlet cannot be blocked, the use cost is greatly reduced, the air entering the air exhaust main pipe is cleaner, and even can be directly introduced into the air inlet main pipe for reuse, and the use cost is further reduced; the exhaust pipe is easy to clean by removing the cap 27 and taking out the inner pipe 2 before cleaning and then washing/purging. When the air-blowing isolation cage is used, the power for air flowing comes from an air-blowing fan or an air suction fan on an exhaust pipeline of the independent air-blowing isolation cage.

Example 2

Referring to fig. 5, an exhaust pipe of isolated cage utensil of independently supplying air, including the body, be provided with air inlet joint 4 on the body, the body includes outer tube 1 and inner tube 2, inner tube 2 is located the outer tube 1 inner chamber, inner tube 2 comprises a plurality of fill shape pipeline sections 20 of arranging in succession, all fill shape pipeline section 20 inner chambers communicate with each other, air inlet joint 4 communicates fill shape pipeline section 20 inner chamber, fill shape pipeline section 20 comprises first straight section 21, first oblique section 22 and the straight section 23 of second that top-down set up, and the straight section 23 internal diameter of second is less than the straight section 21 internal diameter of first straight section, the first straight section 21 of next level fill shape pipeline section 20 is connected to the bottom of last level fill shape pipeline section 20.

In this embodiment, the top surface of the first straight section 21 is provided with a hole 26, and the diameter of the hole 26 is equal to the inner diameter of the lower end of the second inclined section 24. The side wall of the first straight section 21 is provided with an air inlet hole 6, the side wall of the outer pipe 1 is provided with a through hole 5, and the air inlet joint 4 simultaneously penetrates through and is fixed at the through hole 5 and the air inlet hole 6. The air inlet holes 6 are close to the top wall of the first straight section 21. The top wall of the first straight section 21 is perpendicular to the axis of the bucket-shaped pipe section 20. The matching mode of the inner pipe 2 and the outer pipe 1 is small clearance matching, and the clearance is controlled within 0.5-1 mm. The air inlet joint 4 is in threaded connection with the through hole 5 and the air inlet hole 6.

In this embodiment, the top surface of the bucket-shaped pipe section 20 located at the top of the inner pipe 2 is provided with a filter screen 28, the bottom of the outer pipe 1 is connected with a pipe cap 27 in a matching manner, and the bottom end of the pipe cap 27 is a hollow net.

In this embodiment, the inner tube 2 and the outer tube 1 are both aluminum tubes, the outer tube 1 is a circular tube, and the first straight section 21 and the second straight section 23 of the inner tube are both circular.

In the above embodiment, the size of the outer tube 1 refers to the design of the exhaust duct of the conventional isolated blowing cage.

Examples 3 to 4

An exhaust duct for independently blowing air to an isolation cage, which is different from the embodiments 1 and 2 with reference to the embodiments 1 and 2, is as follows: the inner pipe 2 and the outer pipe 1 are both aluminum pipes, the outer pipe 1 is a rectangular pipe, and the first straight section 21 and the second straight section 23 of the inner pipe are both rectangular.

Claims

1. The utility model provides an exhaust pipe of cage utensil is kept apart in independent air supply, includes the body, is provided with air inlet joint (4) on the body, its characterized in that: the body includes outer tube (1) and inner tube (2), inner tube (2) are located outer tube (1) inner chamber, inner tube (2) comprise a plurality of fill shape pipeline sections (20) of arranging in succession, all fill shape pipeline sections (20) inner chambers communicate with each other, air inlet joint (4) intercommunication fill shape pipeline section (20) inner chamber, fill shape pipeline section (20) include first straight section (21) that top-down set up, first oblique section (22) and second straight section (23), and second straight section (23) internal diameter is less than first straight section (21) internal diameter, first straight section (21) of next-level fill shape pipeline section (20) are connected to the bottom of last one-level fill shape pipeline section (20).

2. An exhaust duct according to claim 1, wherein: the bucket-shaped pipe section (20) is composed of a first straight section (21), a first inclined section (22), a second straight section (23) and a second inclined section (24) which are arranged from top to bottom, and the diameter of the upper end of the second inclined section (24) is smaller than that of the lower end of the second inclined section (24).

3. An exhaust duct according to claim 2, wherein: the top surface of the first straight section (21) is provided with a hole (26), and the diameter of the hole (26) is equal to the inner diameter of the lower end of the second inclined section (24).

4. An exhaust duct as defined in claim 3, further comprising: the side wall of the first straight section (21) is provided with an air inlet hole (6), the side wall of the outer pipe (1) is provided with a through hole (5), and the air inlet joint (4) is simultaneously penetrated and fixed at the through hole (5) and the air inlet hole (6).

5. An exhaust duct according to claim 4, wherein: the air inlet hole (6) is close to the top wall of the first straight section (21).

6. An exhaust duct as defined in claim 5, further comprising: the top wall of the first straight section (21) is vertical to the axis of the bucket-shaped pipe section (20).

7. An exhaust duct according to any one of claims 1 to 6, wherein: the inner tube (2) and the outer tube (1) are matched in a small clearance fit mode, and the clearance is controlled within 1 mm.

8. An exhaust duct as defined in claim 7, further comprising: the air inlet joint (4) is in threaded connection with the through hole (5) and the air inlet hole (6).

9. An exhaust duct according to claim 8, wherein: the top surface of the bucket-shaped pipe section (20) positioned at the top of the inner pipe (2) is provided with a filter screen (28), the bottom of the outer pipe (1) is connected with a pipe cap (27) in a matching way, and water is contained in the pipe cap (27).

10. An exhaust duct according to claim 9, wherein: the inner pipe (2) and the outer pipe (1) are both stainless steel pipes.