CN219232397U

CN219232397U - Test cabin for testing SVOC release amount based on micro-cabin method

Info

Publication number: CN219232397U
Application number: CN202321325854.8U
Authority: CN
Inventors: 吴映江; 肖达; 谢峰; 陈华良; 邵曌; 付烨
Original assignee: SICHUAN INSTITUTE PRODUCT QUALITY SUPERVISION INSPECTION AND RESEARCH
Current assignee: SICHUAN INSTITUTE PRODUCT QUALITY SUPERVISION INSPECTION AND RESEARCH
Priority date: 2023-05-29
Filing date: 2023-05-29
Publication date: 2023-06-23
Anticipated expiration: 2033-05-29

Abstract

The utility model provides a test cabin for testing SVOC release amount based on a micro-cabin method, which comprises a micro-cabin main body and a sample clamping plate, wherein the sample clamping plate is arranged in the micro-cabin main body, the sample clamping plate divides the interior of the micro-cabin main body into two communicated chambers, and the communicated position of the two chambers is positioned at one end of the sample clamping plate; the two chambers are respectively provided with an air inlet and an air outlet, air flow pumped from the air inlet flows in from one end of the sample clamping plate, flows to the communication position at the other end of the sample clamping plate along the surface of one side of the sample clamping plate, flows to the end part of the sample clamping plate along the surface of the other side of the sample clamping plate in a reverse direction, and is finally discharged from the air outlet; the sample clamping plate comprises a first clamping frame, a second clamping frame, a sliding seat and a base; the device solves the problems that the prior device is only suitable for single-sided exposure samples, and cannot realize sample collection of single-sided release SVOC, poor collection effect and the like for double-sided exposure samples (two-sided materials are inconsistent).

Description

Test cabin for testing SVOC release amount based on micro-cabin method

Technical Field

The utility model relates to the technical field of SVOC detection, in particular to a test cabin for testing SVOC release amount based on a micro-cabin method.

Background

The current SVOC detection method mainly depends on the international standard ISO 16000-25:2011 "Industrial air-Part 25: determination of the emission of semivolatile organic compounds by building products-Micro-chamber method (Indoor air. Part 25: emission measurement of semi-volatile organic Compounds of building products-Micro-cabin method), the test cabin specified in the method is a Micro-cabin.

ISO 16000-25:2011 (position of the first step test specimen in the micro-chamber) specifies: the samples were cut into circles in ISO16000-25, "the samples were located at the top of the micro-chamber and were not in direct contact with the inner wall," and placed on the underside of the hatch cover, which was not suitable for testing of thick materials, as well as profiled materials. Meanwhile, the contact between the nitrogen flow introduced into the cabin and the surface of the sample is extremely limited when the nitrogen flow circulates in the micro-cabin, and the placement mode of the sample greatly influences the test result by considering that SVOC exists in a plurality of tiny solid-phase particles, ISO 16000-25: the sample placement method specified in 2011 cannot sufficiently bring the SVOC released from the sample surface out of the cabin with the airflow; in addition, the method is only suitable for single-sided exposure samples, and for double-sided exposure samples (two-sided materials are inconsistent), the problems that the collection of the samples with SVOC released from one side cannot be realized, the collection effect is poor and the like can not be solved.

Disclosure of Invention

The utility model aims to provide a test cabin for testing SVOC release amount based on a micro-cabin method, which solves the problems that the existing device is only suitable for single-sided exposure samples, and for double-sided exposure samples (two-sided materials are inconsistent), sample collection of single-sided release SVOC cannot be realized, collection effect is poor and the like.

The embodiment of the utility model is realized by the following technical scheme: the test cabin for testing SVOC release amount based on the micro-cabin method comprises a micro-cabin main body and a sample clamping plate, wherein the sample clamping plate is arranged inside the micro-cabin main body, the sample clamping plate divides the inside of the micro-cabin main body into two communicated chambers, and the two communicated chambers form a U-shaped air passage;

the micro-cabin body is respectively provided with an air inlet and an air outlet, and air flow pumped from the air inlet passes through the U-shaped air passage and then is discharged from the air outlet.

Further, the sample clamping plate comprises a first clamping frame, a second clamping frame, a sliding seat and a base, wherein the base is integrally arranged in the micro-cabin main body, and the sliding seat is detachably arranged on the base;

the first clamping frame and the second clamping frame are arranged in parallel, and one ends of the first clamping frame and the second clamping frame are both in sliding connection with the sliding seat.

Further, the sample holding plate further comprises a partition plate, and the partition plate is arranged between the first clamping frame and the second clamping frame.

Further, the micro-cabin main body comprises a cabin body and a cabin cover, and the cabin cover is in sealing fit with the cabin body;

the sample clamping plate is vertically arranged in the cabin body; the base is arranged at the inner bottom of the cabin body.

Further, the device also comprises two baffles, wherein the two baffles are symmetrically arranged at two sides of the sample clamping plate, and are parallel to the sample clamping plate;

the two baffles are respectively arranged in the two chambers, the two baffles divide the chambers where the baffles are respectively positioned into two air chambers with communicated bottoms, and the two air chambers positioned on the outer sides are respectively communicated with the air inlet and the air outlet.

Further, the two baffles are vertically connected with the hatch cover.

Further, the air inlet and the air outlet are both arranged on the cabin cover, and the air inlet and the air outlet are both in a strip shape.

Further, the corners of the air chamber are arc-shaped.

The technical scheme of the embodiment of the utility model has at least the following advantages and beneficial effects:

1. the flow track of the nitrogen entering the cabin is changed by adding the baffle made of mirror stainless steel in the cabin body of the micro-cabin, so that the air flow flows from the surface of the sample as much as possible, the contact probability of the air and the surface of the sample is increased, and the test result is more accurate; meanwhile, a novel sample clamp is additionally arranged in the micro-cabin, and through changing the placing mode of the sample, various conditions such as sampling of a single-sided exposed sample and sampling of a double-sided exposed sample are met, so that the precision of a test result is improved.

2. The corners of the four air chambers are arc-shaped, so that the air flow is smoother, the deposition of SVOC in the cabin can be reduced as much as possible, the plurality of U-shaped air passages formed by the two partition plates and the sample clamping plate are matched, the SVOC released from the surface of the sample can be brought out of the cabin along with the air flow more fully, and the collection effect is good.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related 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 a test cabin for testing SVOC release amount based on a micro-cabin method in double-sided detection of a sample;

FIG. 2 is a schematic diagram of a test cabin for testing SVOC release amount based on a micro-cabin method for single-sided detection of a sample;

FIG. 3 is a schematic cross-sectional view taken at A-A of FIG. 2;

FIG. 4 is a schematic structural diagram of a sample clamping plate in a test cabin for testing SVOC release based on a micro-cabin method;

icon: 1. the micro-cabin comprises a micro-cabin main body 11, a cabin body 12, a cabin cover 13, an air chamber 2, a sample clamping plate, a first clamping frame 21, a second clamping frame 22, a second clamping frame 23, a sliding seat 24, a base 25, a partition board 3, an air inlet 4, an air outlet 5 and a baffle plate.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, the embodiment provides a test cabin for testing SVOC release based on a micro-cabin method, which comprises a micro-cabin main body 1 and a sample clamping plate 2, wherein the sample clamping plate 2 is arranged inside the micro-cabin main body 1, the sample clamping plate 2 divides the inside of the micro-cabin main body 1 into two communicated chambers, the communicated positions of the two chambers are positioned at one end of the sample clamping plate 2, and the two communicated chambers form a U-shaped air passage;

an air inlet 3 and an air outlet 4 are respectively arranged on the micro-cabin main body 1, and air flow pumped in from the air inlet 3 passes through the U-shaped air passage and is discharged from the air outlet 4; during the implementation, the air current that pumps in from air inlet 3 flows in from sample centre gripping plate 2 one end, flows to the intercommunication department of sample centre gripping plate 2 other end along sample centre gripping plate 2 one side face, flows to its tip along sample centre gripping plate 2 opposite side face again, finally discharges from gas outlet 4, and then takes away the SVOC that the sample released through the air current of circulation, realizes the sampling to the sample.

More specifically, the micro-cabin main body 1 comprises a cabin body 11 and a cabin cover 12, the cabin cover 12 is in sealing fit with the cabin body 11, and a handle is arranged on the cabin cover 12, so that the cabin cover 12 is convenient to detach and install; when placing a sample, the hatch 12 is opened, the sample is placed on the sample clamping plate 2 in the hatch 11, and then the hatch 12 and the hatch 11 are closed and covered.

As shown in fig. 1-3, the sample clamping plate further comprises two baffles 5, wherein the two baffles 5 are symmetrically arranged on two sides of the sample clamping plate 2, and the two baffles 5 are parallel to the sample clamping plate 2; the baffle 5 is made of stainless steel.

More specifically, two baffles 5 are arranged in two cavities respectively, two air chambers 13 that the bottom was linked together are separated into with the cavity that each locates to two baffles 5, and two air chambers 13 that are located the outside are linked together with air inlet 3 and gas outlet 4 respectively, and then set up whole air flue into the dogleg shape, and the both sides face that makes the air current can flow through sample centre gripping plate 2 to the maximum when being convenient for set up the sample in the cabin body 11 has fine sampling effect.

More specifically, the two baffles 5 are vertically connected with the hatch cover 12, so that when the hatch cover 12 is opened, the hatch cover 12 can be taken out along with the hatch cover 12 while the folded air passage is formed, and further, the operation of clamping the sample plate is facilitated, and the adjustment and placement of subsequent samples are facilitated.

As shown in fig. 3, the air inlet 3 and the air outlet 4 are both arranged on the hatch cover 12, the air inlet 3 and the air outlet 4 are both in a long strip shape, and then the entering air can circulate in a long strip shape, so that the flowing dead angle is avoided as far as possible. Meanwhile, the shape of the air inlet is changed, and the width of the air inlet flow is widened through the change of the shape, so that the air flow is more fully contacted with the surface of the sample when flowing through the surface of the sample.

Meanwhile, the corners of the four air chambers 13 are arc-shaped as far as possible, so that the air flow is smoother, and the deposition of SVOC in the cabin can be reduced as far as possible, thereby solving the problems that the deposition of SVOC in the bottom corner of the cabin is easy to cause by adopting a right angle at the bottom of the traditional test cabin; the plurality of U-shaped air passages formed by the two partition plates and the sample clamping plate 2 can more fully bring the SVOC released from the surface of the sample out of the cabin along with the airflow.

Embodiment one:

as shown in fig. 1 to 4, the sample holding plate 2 comprises a first clamping frame 21, a second clamping frame 22, a sliding seat 23 and a base 24, wherein the base 24 is integrally arranged inside the micro-cabin body 1, and the sliding seat 23 is detachably arranged on the base 24; the sample clamping plate 2 is vertically arranged in the cabin 11; the base 24 is disposed at the interior bottom of the cabin 11.

The first clamping frame 21 and the second clamping frame 22 are arranged in parallel, and one end of each of the first clamping frame 21 and the second clamping frame 22 is in sliding connection with the sliding seat 23.

As shown in fig. 1, in the implementation, when a sample is detected on both sides, that is, when the sample is emitted on both sides and needs to be collected, the partition plate 25 is not needed, the first clamping frame 21 and the second clamping frame 22 are only required to be broken off by hands, the sample is placed between the first clamping frame 21 and the second clamping frame 22, and then the first clamping frame 21 and the second clamping frame 22 are folded to realize clamping of the sample; and then the two sides of the sample are sampled by pumping in the circulating air flow.

Embodiment two:

as an extension of one implementation of the first embodiment, as shown in fig. 2 and 4, the sample holding plate 2 further includes a partition plate 25, and the partition plate 25 is disposed between the first clamping frame 21 and the second clamping frame 22. When the single-sided detection is performed on the sample, the separator 25 is used to cover the side that does not need to be detected, and the first clamping frame 21 and the second clamping frame 22 are clamped, so that the single-sided sampling of the sample is completed.

Embodiment III:

more specifically, the collection area can be increased by adopting the first clamping frame 21 and the second clamping frame 22 with larger inner frames when the SVOC detection amount is lower, so that the sampling accuracy is improved.

The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The test cabin for testing SVOC release amount based on the micro-cabin method is characterized by comprising a micro-cabin main body (1) and a sample clamping plate (2), wherein the sample clamping plate (2) is arranged inside the micro-cabin main body (1), the sample clamping plate (2) divides the inside of the micro-cabin main body (1) into two communicated chambers, and the two communicated chambers form a U-shaped air passage;

an air inlet (3) and an air outlet (4) are respectively arranged on the micro-cabin main body (1), and air flow pumped from the air inlet (3) passes through the U-shaped air passage and then is discharged from the air outlet (4).

2. The test pod for testing the release amount of SVOC based on the micro-pod method according to claim 1, wherein the sample clamping plate (2) comprises a first clamping frame (21), a second clamping frame (22), a sliding seat (23) and a base (24), the base (24) is integrally arranged inside the micro-pod main body (1), and the sliding seat (23) is detachably arranged on the base (24);

the first clamping frame (21) and the second clamping frame (22) are arranged in parallel, and one ends of the first clamping frame (21) and the second clamping frame (22) are both in sliding connection with the sliding seat (23).

3. A test pod for testing the release of SVOC based on the micro-pod method according to claim 2, wherein the sample holding plate (2) further comprises a spacer (25), said spacer (25) being interposed between the first clamping frame (21) and the second clamping frame (22).

4. A test pod for testing the release of SVOC based on the micro-pod method according to claim 3, characterized in that said micro-pod body (1) comprises a pod (11) and a pod cover (12), said pod cover (12) being in sealing engagement with said pod (11);

the sample clamping plate (2) is vertically arranged in the cabin (11); the base (24) is arranged at the inner bottom of the cabin (11).

5. The test cabin for testing the release amount of SVOC based on the micro-cabin method according to claim 4, further comprising two baffles (5), wherein the two baffles (5) are symmetrically arranged at two sides of the sample clamping plate (2), and the two baffles (5) are parallel to the sample clamping plate (2);

the two baffles (5) are respectively arranged in the two chambers, the two baffles (5) divide the chambers where the baffles are respectively arranged into two air chambers (13) with communicated bottoms, and the two air chambers (13) at the outer sides are respectively communicated with the air inlet (3) and the air outlet (4).

6. A test pod for testing the release of SVOC based on the micro-pod method according to claim 5, characterized in that both baffles (5) are connected perpendicularly to the hatch (12).

7. The test cabin for testing the release amount of SVOC based on the micro-cabin method according to claim 5, wherein the air inlet (3) and the air outlet (4) are both arranged on the cabin cover (12), and the air inlet (3) and the air outlet (4) are both in a strip shape.

8. The test pod for testing the release amount of SVOC based on the micro-pod method according to claim 5, wherein the corners of the air chamber (13) are arc-shaped.