CN215218035U

CN215218035U - Resistance test bench

Info

Publication number: CN215218035U
Application number: CN202121447859.9U
Authority: CN
Inventors: 白远远; 吴腾飞
Original assignee: Sothis Suzhou Environment Technology Co ltd
Current assignee: Sothis Suzhou Environment Technology Co ltd
Priority date: 2021-06-28
Filing date: 2021-06-28
Publication date: 2021-12-17
Anticipated expiration: 2031-06-28

Abstract

The utility model relates to a resistance test platform, including fan, plenum, wind channel and the surveyed filter of sealed intercommunication in proper order, the end in wind channel is provided with the installation component of fixed not unidimensional surveyed filter, the installation component includes bottom plate and a set of lagging, the bottom plate is rectangle frame structure, and a set of lagging is including setting up in the bottom plate frame limit, from inside to outside a plurality of framework structure boards of cup jointing together, and wherein the most inboard framework structure board matches with the size of being surveyed the filter, is equipped with the die clamping cylinder who presss from both sides tight bottom plate on the terminal lateral wall in wind channel. The utility model discloses at the in-process of survey resistance, the demand of different filters to the amount of wind is realized through the permutation and combination of nozzle group and the cooperation of fan in the plenum, and the installation component adopts integrated configuration to realize the biggest compatibility of filter.

Description

Resistance test bench

Technical Field

The utility model belongs to the technical field of the filter technique and specifically relates to a resistance test platform.

Background

The filter is widely applied to the fields of medical treatment, electronics, ventilation air conditioners and the like, and the resistance testing system is used for detecting whether the filter is qualified or not and is mainly used in the cleaning industry in the market. In the process of measuring the resistance, the air quantity demand range is wide, and the air quantity demands of different filters can be realized through the match of the air chamber nozzle arrangement combination and the fan. However, the existing resistance testing system designs air ducts with connecting ports of different sizes according to filters of different sizes so as to ensure the accuracy of resistance testing.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: overcomes the defects in the prior art and provides a resistance test bench.

The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a resistance test platform, is including fan, plenum, wind channel and the surveyed filter of sealed intercommunication in proper order, the end in wind channel is provided with the installation component of fixed not unidimensional surveyed filter, installation component includes bottom plate and a set of lagging, the bottom plate is the rectangle frame structure, and a set of lagging is including setting up in bottom plate frame limit, from a plurality of framework structure boards that cup joint together from inside to outside, and wherein the most inboard framework structure board matches with the size of being surveyed the filter, is equipped with the die clamping cylinder who presss from both sides tight lagging on the terminal lateral wall in wind channel.

The clamping cylinder drives the clamping sleeve plate, and the sleeve plates with different specifications are used for realizing effective connection of filters with different sizes and the air channel.

It is further defined that the mounting assembly further comprises removable upper and lower baffles disposed on the base plate, and removable left and right baffles disposed between the upper and lower baffles, the left and right baffles having a length that matches a size of the filter under test.

The upper baffle, the lower baffle, the left baffle and the right baffle are arranged, so that the sleeve plate can be further fixed, and the filter to be tested can be conveniently limited.

Further limiting, a pair of vertical slide rails is arranged on the bottom plate, and a press rod which slides along the slide rails and presses the tested filter is arranged on the slide rails.

The pressure rod is arranged to further limit the filter to be tested, and the pressure rod is arranged on the sliding rail and is convenient to move up and down.

Further limiting, the adjacent frame structure plates are connected through bolts, and a sealing gasket is arranged at the joint of the two; the frame structure plate on the outermost side is connected with the bottom plate through bolts, and a sealing gasket is arranged at the joint of the frame structure plate and the bottom plate.

The frame structure plates in the sleeve plate are connected through bolts, so that the assembly and disassembly are convenient; the sealing between the frame structure plates is realized by a sealing gasket.

Further limit, a nozzle group is arranged at the inner tail end of the air chamber, and an access door is arranged at the position, corresponding to the nozzle group, of the outer wall of the air chamber.

The required air quantity can be realized through the arrangement and combination of the nozzle groups, and the access door is convenient for overhauling the nozzles.

Further, a primary filter is arranged in the air channel close to the air chamber, and a flow equalizing plate is arranged at the tail end in the air channel.

The clean air is obtained by filtering through the primary filter, and the air with uniform wind speed can be obtained through the flow equalizing plate.

And a static pressure ring is arranged between the flow equalizing plate on the outer wall of the air duct and the tail end of the flow equalizing plate, a differential pressure sensor is further arranged on the outer wall of the air duct, one end of the differential pressure sensor is connected with the static pressure ring, and the other end of the differential pressure sensor is exposed in the air.

The pressure difference between the two ends of the pressure difference sensor is the resistance of the tested filter.

Further, the two ends of the air duct are provided with racks, and the differential pressure sensor is mounted on the rack at the tail end of the air duct.

The frame is arranged, so that the air duct can be supported conveniently.

Further inject, die clamping cylinder is provided with two, and two die clamping cylinder are located the last lower border department of terminal lateral wall in wind channel respectively, are connected with on every die clamping cylinder's the push rod and rotate the piece, it connects a dwang to rotate the piece, evenly distributed has a plurality of clamping jaws on the dwang.

Two die clamping cylinder actions promote to rotate the piece and make the dwang rotate, realize that the clamping jaw presss from both sides tight lagging, and the centre gripping is effectual.

It is further defined that the fan is disposed within a fan box.

So set up, one comes the noise abatement, prevents that the granule from entering into the fan in two, causes the detection data inaccurate.

The utility model has the advantages that: the utility model discloses at the in-process of survey resistance, the demand of different filters to the amount of wind is realized through the permutation and combination of nozzle group and the cooperation of fan in the plenum, and the installation component adopts integrated configuration to realize the biggest compatibility of filter.

Drawings

The present invention will be further described with reference to the accompanying drawings and embodiments.

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural diagram of the middle air chamber of the present invention.

Fig. 3 is a schematic structural diagram of the front end of the middle air duct of the present invention.

Fig. 4 is a schematic structural view of the end of the middle air duct of the present invention.

Fig. 5 is a schematic structural diagram of the middle mounting assembly of the present invention.

Fig. 6 is an assembled view of the upper, lower, left and right baffle plates of fig. 5.

Fig. 7 is a schematic view of the structure of the deck of fig. 5.

In the figure: 1. the air conditioner comprises a fan, a fan box, a wind chamber, a nozzle group, an access door, a primary filter, an air channel, a frame, a clamping cylinder, a tested filter, a flow equalizing plate, a static pressure ring, a pressure difference sensor, a pressure rod, a template, a clamping jaw, a rotating part, a rotating rod, a bottom plate, a sleeve plate, a frame body structure plate, a left baffle plate, a right baffle plate, an upper baffle plate, a lower baffle plate, a sliding rail and a pressure rod, wherein the fan is 2, the fan box is 3, the wind chamber is 4, the nozzle group is 5, the access door is 6, the primary filter is 7, the air channel is 8, the frame body structure plate is 9, the tested filter is 10, the flow equalizing plate is 11, the static pressure ring is 12, the pressure sensor is 13, the pressure difference sensor is 14, the pressure rod is 15, the template is 16, the clamping jaw is 17, the rotating part structure plate is a sleeve plate, the frame body structure plate is 211, the frame structure plate is 211, the left baffle plate is a left baffle plate, the right baffle plate is a right baffle plate, the upper baffle plate is 25, the upper baffle plate, the lower baffle plate is 25, the lower baffle plate, the slide rail is 27, and the lower baffle plate, the slide rail is provided with the slide rail, and the slide rail, the slide rod, and the slide rod, and the slide rod, and the slide rod are arranged on the slide rod, and the slide rod.

Detailed Description

The invention will now be further described with reference to the accompanying drawings. The drawings are simplified schematic diagrams only illustrating the basic structure of the present invention in a schematic manner, and thus show only the components related to the present invention.

As shown in fig. 1 to 4, a resistance test bench comprises a fan 1, an air chamber 3, an air duct 7 and a tested filter 10 which are sequentially and hermetically communicated, wherein the fan 1 is arranged in a fan box 2, a nozzle group 4 is arranged at the tail end of the inner side of the air chamber 3, an access door 5 is arranged at the position, corresponding to the nozzle group 4, of the outer wall of the air chamber 3, a primary filter 6 is arranged in the air duct 7, close to the air chamber 3, a flow equalizing plate 11 is arranged at the tail end of the inner side of the air duct 7, a static pressure ring 12 is arranged between the flow equalizing plate 11 and the tail end of the outer side of the air duct 7, a differential pressure sensor 13 is further arranged on the outer side of the air duct 7, one end of the differential pressure sensor 13 is connected with the static pressure ring 12, the other end of the differential pressure sensor is exposed in the air, racks 8 are arranged at the two ends of the air duct 7, the differential pressure sensor 13 is arranged on the racks 8 at the tail end of the air duct 7, and an installation component for fixing the tested filter 10 with different sizes is arranged at the tail end of the air duct 7.

As shown in fig. 1 and 5, the mounting assembly includes a bottom plate 20 and a set of sleeve plates 21, the bottom plate 20 is in a rectangular frame structure, the set of sleeve plates 21 includes three frame structure plates 211 which are arranged in the frame of the bottom plate 20 and sleeved together from inside to outside, wherein the innermost frame structure plate 211 matches with the size of the filter 10 to be tested, the outer side wall of the tail end of the air duct 7 is provided with two clamping cylinders 9 which clamp the sleeve plates 21, the two clamping cylinders 9 are respectively located at the upper edge and the lower edge of the outer side wall of the tail end of the air duct 7, the push rod of each clamping cylinder 9 is connected with a rotating part 17, the rotating part 17 is connected with a rotating rod 18, and a plurality of clamping jaws 16 are uniformly distributed on the rotating rod 18; the bottom plate 20 is provided with a pair of vertical slide rails 26, and the slide rails 26 are provided with a press rod 27 which slides along the slide rails and presses the filter 10 to be tested.

As shown in fig. 6, the mounting assembly further includes removable upper and

lower baffles

22, 23 disposed on the base plate 20, and removable left and

right baffles

24, 25 disposed between the upper and

lower baffles

22, 23, the left and

right baffles

24, 25 having lengths that match the size of the filter 10 under test.

As shown in fig. 7, the adjacent frame structure plates 211 in the sleeve plate 21 are connected by bolts, and a sealing gasket (not shown in the figure) is arranged at the joint of the two; the outermost frame structure plate 211 is connected to the bottom plate 20 by bolts, and a gasket (not shown) is provided at the joint between the two.

The specific resistance measurement process is as follows:

the fan 1 is started to supply air, the fan 1 controls the air volume through frequency conversion adjustment, when the air reaches the air chamber 3, the required air volume is realized through the arrangement and combination of the nozzle groups 4, the clean air is obtained through the filtration of the primary filter 6, and the air reaches the flow equalizing plate 11 through the air channel 7, so that the air with uniform air speed can be obtained; the clamping cylinder 9 drives the clamping jaw 16 to clamp the bottom plate 20, the tested filter 10 is fixed through the sleeve plate 21 and the upper, lower, left and

right baffle plates

22, 23, 24 and 25 and is pressed tightly through the pressing rod 27; after the filter 10 to be tested is mounted and fixed, the differential pressure sensor 13 measures the pressure difference between the two ends, which is the resistance of the filter 10 to be tested.

The measured filter 10 is square, and the size (side length) of the square filter is 180-1320 mm; the innermost frame structure plate 211 of the sleeve plate 21 has a dimension (length. times. width) of 180X 180 to 630X 630mm²The size of the frame structure plate 211 in the middle is 630 multiplied by 630-1000 multiplied by 1000mm²The outermost frame structure plate 211 has a size of 1000X 1000 to 1320X 1320mm²(ii) a The filter 10 under test is fixed by using different straps 21 according to different filter sizes, adjusting the positions of the upper and

lower baffles

22 and 23 and replacing different left and

right baffles

24 and 25.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable people skilled in the art to understand the contents of the present invention and implement the present invention, and the protection scope of the present invention can not be limited thereby, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims

1. The utility model provides a resistance test platform, is including fan, plenum, wind channel and the measured filter of sealed intercommunication in proper order, its characterized in that: the end in wind channel is provided with the installation component of fixed not unidimensional filter under test, the installation component includes bottom plate and a set of lagging, the bottom plate is rectangle frame structure, and a set of lagging is including setting up in the bottom plate frame limit, from a plurality of frame structure boards that cup joint together from inside to outside, and wherein the most inboard frame structure board matches with the size of filter under test, is equipped with the die clamping cylinder who presss from both sides tight bottom plate on the terminal lateral wall in wind channel.

2. The resistance test stand of claim 1, wherein: the mounting assembly further comprises an upper baffle plate and a lower baffle plate which are arranged on the bottom plate and can be removed, and a left baffle plate and a right baffle plate which are arranged between the upper baffle plate and the lower baffle plate and can be removed, wherein the lengths of the left baffle plate and the right baffle plate are matched with the size of the filter to be tested.

3. The resistance test stand of claim 1, wherein: the bottom plate is provided with a pair of vertical slide rails, and the slide rails are provided with pressure rods which slide along the slide rails and press the tested filter.

4. The resistance test stand of claim 1, wherein: the adjacent frame structure plates are connected through bolts, and a sealing gasket is arranged at the joint of the two; the frame structure plate on the outermost side is connected with the bottom plate through bolts, and a sealing gasket is arranged at the joint of the frame structure plate and the bottom plate.

5. The resistance test stand of claim 1, wherein: the tail end in the air chamber is provided with a nozzle group, and the position of the outer wall of the air chamber, which corresponds to the nozzle group, is provided with an access door.

6. The resistance test stand of claim 5, wherein: a primary filter is arranged in the air duct close to the air chamber, and a flow equalizing plate is arranged at the inner tail end of the air duct.

7. The resistance test stand of claim 6, wherein: and a static pressure ring is arranged between the flow equalizing plate on the outer wall of the air duct and the tail end of the flow equalizing plate, a pressure difference sensor is further arranged on the outer wall of the air duct, one end of the pressure difference sensor is connected with the static pressure ring, and the other end of the pressure difference sensor is exposed in the air.

8. The resistance test stand of claim 7, wherein: the two ends of the air duct are provided with racks, and the differential pressure sensor is arranged on the rack at the tail end of the air duct.

9. The resistance test stand of claim 1, wherein: the clamping cylinders are arranged at two positions, the two clamping cylinders are respectively located at the upper edge and the lower edge of the outer side wall of the tail end of the air channel, a rotating piece is connected to the push rod of each clamping cylinder and connected with a rotating rod, and a plurality of clamping jaws are uniformly distributed on the rotating rod.

10. The resistance test stand of claim 1, wherein: the fan is arranged in the fan box.