CN216208434U

CN216208434U - Particulate matter filtration efficiency testing arrangement

Info

Publication number: CN216208434U
Application number: CN202122660477.0U
Authority: CN
Inventors: 韩斌
Original assignee: Anhui Yinuojian Electronic Co ltd
Current assignee: Anhui Yinuojian Electronic Co ltd
Priority date: 2021-11-02
Filing date: 2021-11-02
Publication date: 2022-04-05
Anticipated expiration: 2031-11-02

Abstract

The utility model relates to a filtration efficiency test technical field just discloses a particulate matter filtration efficiency testing arrangement, including the inlet pipe of vertical setting and carry the thing board, carry the top side of thing board through linking pole and inlet pipe fixed connection, the intercommunicating pore has been seted up at the top of carrying the thing board, the filter screen that is located the intercommunicating pore top has been placed at the top of carrying the thing board, the inner wall sliding seal of inlet pipe has the piston piece, round platform shape hole has been seted up at the top of piston piece, the bottom fixedly connected with of piston piece communicates the linking pipe in round platform shape hole. This scheme is through upwards lifting the sealed cowling, tailors into suitable size with the filter screen and places in the top of intercommunicating pore, then slowly loosens the sealed cowling, and the sealed cowling moves down under the action of gravity of counter weight ring, and the cooperation of rethread elastic fixation part makes the filter screen fixed, and then makes the difficult emergence of filter screen remove, has improved efficiency of software testing.

Description

Particulate matter filtration efficiency testing arrangement

Technical Field

The application relates to the technical field of filtration efficiency testing, in particular to a particulate matter filtration efficiency testing device.

Background

The filter screen is a widely used component, the filter screen is an indispensable choice for achieving the filtering effect, the working principle of the filter screen is simple, namely, particles with different sizes are filtered through different sizes of meshes, so that the cost of the filter screen is low, and the filter screen becomes a preferred component during filtering;

because the filter screen uses very extensively, therefore the filter efficiency of filter screen has also aroused the concern, present detection method uses the dust that the granule size is unanimous mostly, makes the dust pass through the filter screen, and the concentration of the dust of remeasurement filter screen both sides, and then calculates the filter efficiency of filter screen, but current detection device still has some defects, does not fix the filter screen, leads to the filter screen to receive external environment very easily and disturb and produce the removal, and then influences the test, has reduced efficiency of software testing.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem that above-mentioned provided, this application provides a particulate matter filtration efficiency testing arrangement.

The application provides a particulate matter filtration efficiency testing arrangement adopts following technical scheme:

a particulate matter filtering efficiency testing device comprises a vertically arranged feeding pipe and a carrying plate, wherein the side edge of the top of the carrying plate is fixedly connected with the feeding pipe through a connecting rod, a communicating hole is formed in the top of the carrying plate, a filter screen positioned at the top of the communicating hole is placed at the top of the carrying plate, a piston block is connected to the inner wall of the feeding pipe in a sliding and sealing mode, a circular truncated cone-shaped hole is formed in the top of the piston block, and a connecting pipe communicated with the circular truncated cone-shaped hole is fixedly connected to the bottom of the piston block;

the inner wall of linking pipe is provided with first concentration detection part, the bottom of linking pipe is fixed and the intercommunication has the sealed cowling, the sealed cowling is located the top of carrying the thing board, fixedly connected with counter weight ring is encircleed to the outside bottom of sealed cowling, the elastic fixation part that the interior roof fixedly connected with symmetry of sealed cowling set up, elastic fixation part is used for fixed filter screen, the inner wall of intercommunicating pore is provided with second concentration detection part, the bottom of carrying the thing board is provided with ejection of compact subassembly, the bottom of carrying the thing board is provided with the supporting shoe that is located ejection of compact subassembly side.

Through adopting above-mentioned technical scheme, at first upwards lift up the sealed cowling, tailor into suitable size with the filter screen and place in the top of intercommunicating pore, then slowly loosen the sealed cowling, the sealed cowling moves down under the action of gravity of counter weight ring, and the cooperation of rethread elastic fixation part makes the filter screen fixed, and then makes the difficult emergence of filter screen remove, has improved efficiency of software testing.

Preferably, the gravity of the counterweight ring is greater than the friction force between the piston block and the inner wall of the feed pipe.

Preferably, the elastic fixing part comprises a spring and a pressure lever, the top of the spring is fixedly connected with the inner top wall of the sealing cover, the bottom of the spring is fixedly connected with the pressure lever, and the original length of the spring is the same as the inner height of the sealing cover.

Preferably, the discharging assembly comprises a discharging pipe and a valve, the discharging pipe is communicated with the communicating hole, and the valve is installed on the discharging pipe.

Preferably, the bottom of the supporting block is provided with a rubber block.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the sealing cover is lifted upwards, the filter screen is cut into a proper size and placed above the communication hole, then the sealing cover is loosened slowly, the sealing cover moves downwards under the action of the gravity of the counterweight ring, and the filter screen is fixed through the matching of the elastic fixing part, so that the filter screen is not easy to move, and the testing efficiency is improved;

2. through setting up the sealed cowling, the sealed cowling can be airtight to the dust, makes the dust can not flee the sealed cowling when the filter screen, reduces the effusion of dust, improves staff's safety.

Drawings

Fig. 1 is a schematic overall structure diagram of the application embodiment.

Fig. 2 is a schematic view of the internal structure of the sealing cap according to the embodiment of the present application.

Fig. 3 is a front view of an embodiment of the application.

Description of reference numerals: 1. a feed pipe; 2. a piston block; 3. a circular truncated cone-shaped hole; 4. connecting the pipe; 5. a first concentration detection member; 6. a sealing cover; 7. a counterweight ring; 8. a second concentration detection member; 9. a loading plate; 10. a communicating hole; 11. a filter screen; 12. a spring; 13. a pressure lever; 14. and (4) discharging the pipe.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses particulate matter filtration efficiency testing arrangement. Referring to fig. 1, the particulate matter filtering efficiency testing device comprises a vertically arranged feeding pipe 1 and a carrying plate 9, wherein the side edge of the top of the carrying plate 9 is fixedly connected with the feeding pipe 1 through a joint rod, a communicating hole 10 is formed in the top of the carrying plate 9, a filter screen 11 positioned at the top of the communicating hole 10 is placed at the top of the carrying plate 9, the inner wall of the feeding pipe 1 is connected with a piston block 2 in a sliding and sealing mode, a circular truncated cone-shaped hole 3 is formed in the top of the piston block 2, and a joint pipe 4 communicated with the circular truncated cone-shaped hole 3 is fixedly connected to the bottom of the piston block 2;

referring to fig. 1 and 3, a first concentration detection part 5 is arranged on the inner wall of the connecting pipe 4, a sealing cover 6 is fixed and communicated with the bottom of the connecting pipe 4, the sealing cover 6 is positioned above the carrying plate 9, and a counterweight ring 7 is fixedly connected to the bottom of the outer side of the sealing cover 6 in a surrounding manner.

The gravity of the counterweight ring 7 is larger than the friction force between the piston block 2 and the inner wall of the feeding pipe 1, so that the sealing cover 6 can conveniently move downwards to the top of the carrying plate 9 under the action of the gravity of the counterweight ring 7.

Referring to fig. 1 and 2, the inner top wall of the sealing cover 6 is fixedly connected with elastic fixing parts which are symmetrically arranged, the elastic fixing parts are used for fixing the filter screen 11, each elastic fixing part comprises a spring 12 and a pressing rod 13, the top of the spring 12 is fixedly connected with the inner top wall of the sealing cover 6, the bottom of the spring 12 is fixedly connected with the pressing rod 13, and the original length of the spring 12 is the same as the inner height of the sealing cover 6. Through setting up the fixed part of elasticity and then conveniently fixing filter screen 11, make filter screen 11 be difficult for taking place to remove, improved efficiency of software testing.

Referring to fig. 1, the inner wall of the communicating hole 10 is provided with a second concentration detection part 8, the bottom of the object carrying plate 9 is provided with a discharge assembly, the discharge assembly comprises a discharge pipe 14 and a valve, the discharge pipe 14 is communicated with the communicating hole 10, and the valve is mounted on the discharge pipe 14. Through setting up discharging pipe 14 and valve, and then conveniently collect the dust.

Referring to fig. 1 and 3, the bottom of the loading plate 9 is provided with a supporting block at the side of the discharging component, and the bottom of the supporting block is provided with a rubber block. Through the bottom at the supporting shoe sets up the block rubber, and then increases the frictional force on device and ground, increases stability.

The implementation principle of the particulate matter filtration efficiency testing device in the embodiment of the application is as follows: when the device is used, the sealing cover 6 is lifted upwards, the filter screen 11 is cut into a proper size and placed above the communicating hole 10, then the sealing cover 6 is loosened slowly, the sealing cover 6 moves downwards under the action of the gravity of the counterweight ring 7, and the filter screen 11 is fixed by the compression rod 13 in the elastic fixing part under the action of the elastic force of the spring 12 through the matching of the elastic fixing part, so that the filter screen 11 is not easy to move, and the testing efficiency is improved.

It should be noted that, in this document, terms such as "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a particulate matter filtration efficiency testing arrangement, includes inlet pipe (1) and year thing board (9) of vertical setting, the top side of carrying thing board (9) is through linking pole and inlet pipe (1) fixed connection, its characterized in that: the top of the object carrying plate (9) is provided with a communicating hole (10), the top of the object carrying plate (9) is provided with a filter screen (11) positioned at the top of the communicating hole (10), the inner wall of the feeding pipe (1) is connected with a piston block (2) in a sliding and sealing manner, the top of the piston block (2) is provided with a circular truncated cone-shaped hole (3), and the bottom of the piston block (2) is fixedly connected with an adapter pipe (4) communicated with the circular truncated cone-shaped hole (3);

the inner wall of linking pipe (4) is provided with first concentration detection part (5), the fixed and intercommunication in bottom of linking pipe (4) has sealed cowling (6), sealed cowling (6) are located the top of carrying thing board (9), fixedly connected with counter weight ring (7) are encircleed to the outside bottom of sealed cowling (6), the elastic fixation part that the interior roof fixedly connected with symmetry of sealed cowling (6) set up, elastic fixation part is used for fixed filter screen (11), the inner wall of intercommunicating pore (10) is provided with second concentration detection part (8), the bottom of carrying thing board (9) is provided with ejection of compact subassembly, the bottom of carrying thing board (9) is provided with the supporting shoe that is located ejection of compact subassembly side.

2. The particulate matter filtering efficiency testing device according to claim 1, characterized in that: the gravity of the counterweight ring (7) is greater than the friction force between the piston block (2) and the inner wall of the feeding pipe (1).

3. The particulate matter filtering efficiency testing device according to claim 1, characterized in that: the elastic fixing part comprises a spring (12) and a pressing rod (13), the top of the spring (12) is fixedly connected with the inner top wall of the sealing cover (6), the bottom of the spring (12) is fixedly connected with the pressing rod (13), and the original length of the spring (12) is the same as the inner height of the sealing cover (6).

4. The particulate matter filtering efficiency testing device according to claim 1, characterized in that: the discharging assembly comprises a discharging pipe (14) and a valve, the discharging pipe (14) is communicated with the communicating hole (10), and the valve is installed on the discharging pipe (14).

5. The particulate matter filtering efficiency testing device according to claim 1, characterized in that: and the bottom of the supporting block is provided with a rubber block.