CN209911063U

CN209911063U - Formaldehyde test sampling box of portable sampling

Info

Publication number: CN209911063U
Application number: CN201920177659.2U
Authority: CN
Inventors: 任欢鱼; 郑伟; 汪一潭; 秦丰林; 唐小青
Original assignee: Nanjing Tus Environmental Protection New Energy Co Ltd
Current assignee: Nanjing Tus Environmental Protection New Energy Co Ltd
Priority date: 2019-02-01
Filing date: 2019-02-01
Publication date: 2020-01-07
Anticipated expiration: 2029-02-01

Abstract

The utility model discloses a formaldehyde test sampling box of portable sampling, including open-top's box body, airtight space and sampling bottle, the splendid attire has the collection liquid that can realize gathering formaldehyde in the air in the sampling bottle, wherein: the closed space is formed by sealing a closed partition plate connected to the box body and sliding in the vertical direction with the bottom and the side wall of the box body, the top of the closed space is provided with an air suction pump, and secondary sampling is carried out on the top of the closed space through an auxiliary sampling nozzle; the air suction pump absorbs air in a sampling space through an air suction nozzle extending upwards, and conveys the absorbed air into a sampling bottle for collection through an electromagnetic valve and an air inlet pipe which are connected in sequence; the box body is located the horizontal direction at airtight baffle top and has still arranged the sealing top cap that can the pull open, and airtight baffle top still is equipped with the compression bar. The utility model discloses a use of formaldehyde test sampling box has improved crushing resistance, seal and the leakage compensation performance of sampling formaldehyde in the transportation, has guaranteed sampling gas sampling and convenient to carry.

Description

Formaldehyde test sampling box of portable sampling

Technical Field

The utility model relates to a sampling device technical field such as formaldehyde, air especially relate to the formaldehyde test sampling box of portable sampling.

Background

Formaldehyde is a carcinogenic substance and has toxic and harmful effects on the nervous system, immune system, liver and the like. The formaldehyde can cause the pathological changes of nausea, vomit, cough, chest distress, asthma and even emphysema, chronic respiratory diseases can be caused by long-term exposure to the formaldehyde, the cancer pathological changes of nasal cavity, oral cavity, nasopharynx, throat, skin and digestive tract can be caused when the formaldehyde is serious, and the problems of newborn physique reduction, chromosome abnormality, children intelligence decline and the like can be caused.

In recent years, due to environmental pollution caused by household decoration materials, the increase of some leukemia patients with unknown reasons, the occurrence of events such as banning the use of rongalite in food and soaking in formaldehyde in water hair products and the like, and the problem of formaldehyde becomes the focus of public health concern in the world.

When carrying out SGS to formaldehyde usually, require to detect that formaldehyde is regional to gather formaldehyde sample postmail and send or carry special detection mechanism to detect, formaldehyde sample reveals easily or damaged at the in-process of carrying, leads to unable detection or the not good phenomenon of detection effect.

SUMMERY OF THE UTILITY MODEL

In order to overcome the not enough of above-mentioned prior art, the utility model provides a sampling formaldehyde is good at crushing resistance, seal and the leakage compensation performance of transportation, and sampling convenient to carry's formaldehyde test sampling box of portable sampling.

The utility model adopts the technical proposal that: formaldehyde test sampling box of portable sampling, including open-top's box body, airtight space and sampling bottle, the splendid attire has the collection liquid that can realize gathering formaldehyde in the air in the sampling bottle, wherein:

the closed space is formed by sealing a closed partition plate connected to the box body and sliding in the vertical direction with the bottom and the side wall of the box body, the top of the closed space is provided with an air suction pump, and secondary sampling is carried out on the top of the closed space through an auxiliary sampling nozzle;

the air suction pump absorbs air in a sampling space through an air suction nozzle extending upwards, and conveys the absorbed air into a sampling bottle for collection through an electromagnetic valve and an air inlet pipe which are connected in sequence;

the box body is located the horizontal direction at airtight baffle top and still has arranged the sealing top cap that can the pull open, and airtight baffle top still is equipped with the compression bar, and the compression bar bottom is fixed at airtight baffle top, and the compression bar top extends beyond sealing top cap to the compression bar top is through a straining part straining in the side of box body.

Furthermore, the sampling bottle is connected to the inner wall of the box body in a drawable manner through the bottom clamping groove and the side fastening bracket.

Furthermore, a vertical partition board is arranged in the vertical direction of the closed space, the closed space is divided into a plurality of closed cavity units by the vertical partition board, a vertical sampling bottle is arranged in each closed cavity unit, and each sampling bottle is connected with a suction pump through an air inlet pipe and an electromagnetic valve;

meanwhile, the air suction pump is connected with a PLC control device, and the PLC control device controls the opening and closing states of each electromagnetic valve.

Further, the PLC control device is also connected with a timer and a display device and is used for recording and displaying the sampling time and the sampling volume of each sampling bottle.

Further, the box body is provided with a vertical sliding rail corresponding to the sliding position of the airtight partition plate, and the outer side of the vertical sliding rail is wrapped with a vertical sealing glue layer.

Furthermore, a transverse drawing slide rail is arranged in the drawing direction of the box body corresponding to the sealing top cover, and a transverse sealing glue layer is wrapped outside the transverse drawing slide rail.

Furthermore, the box body is also provided with an exhaust nozzle in the closed space and used for completely removing and absorbing the sampling air in the closed space.

Furthermore, each sampling bottle is connected with a constant pressure valve through a gas supplementing port, the constant pressure valve is arranged in the closed space to supplement the pressure of the sample gas in the sampling bottle in real time, the use of the constant pressure valve is mainly used for ensuring that the pressure of the sampled gas in the sampling bottle is constant within a specified pressure range, and when the pressure exceeds the specified range, the exhaust nozzle is unloaded, so that the loss of the exhaust nozzle in the transportation process is avoided.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a formaldehyde test sampling box of portable sampling uses open-top's box body to sample the sampling bottle airtight in airtight space, and the sampling bottle carries out once sampling through solenoid valve and intake pipe simultaneously, and airtight space carries out the subsampling through supplementary sampling mouth, and the formaldehyde gas that sets up the secondary seal space in the outside of sampling bottle and carry out gas seal to the sampling also, and when the gas in the sampling bottle appears leaking, gas in the seal space also can supply it.

The utility model discloses a key improvement point lies in, has used multilayer seal structure to seal sampling bottle to set up airtight space in sampling bottle's periphery, keep in a certain amount of sample formaldehyde gas in airtight space, when sampling bottle internal gas pressure is revealed or is crossed low excessively, can use the sampling gas that airtight space acquireed to supply. And the whole sampling box is of a box-shaped structure, the pressure resistance is good, and the use of a pull-out opening mode is more convenient.

The utility model discloses a use of formaldehyde test sampling box has improved crushing resistance, seal and the leakage compensation performance of sampling formaldehyde in the transportation, has guaranteed sampling gas sampling and convenient to carry.

Drawings

FIG. 1 is a block diagram of a first embodiment of a portable formaldehyde test sample cartridge;

FIG. 2 is a top view taken along direction A of FIG. 1;

FIG. 3 is a top view of the containment barrier of FIG. 1 taken along line A with the seal cap removed;

FIG. 4 is a block diagram of a second embodiment of a portable sampling formaldehyde test sample cartridge;

FIG. 5 is a schematic diagram of the operation of the PLC control device;

wherein: 1-box body, 2-closed space, 3-sampling bottle, 31-air supplement port; 4-a closed partition, 5-a bottom clamping groove, 6-a side fastening support, 7-a sealing top cover, 8-a suction pump, 9-an upwardly extending suction nozzle, 10-an electromagnetic valve, 11-an air inlet pipe, 12-a vertical partition, 13-a closed cavity unit, 14-a PLC control device, 15-a timer, 16-a display device, 17-a vertical sliding rail, 18-a vertical sealant layer, 19-a transverse sealant layer, 20-an exhaust nozzle, 21-a constant pressure valve, 22-a transverse drawing sliding rail, 23-a pressing rod, 24-a fastening component and 25-an auxiliary sampling nozzle.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the combination or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. In addition, in the description process of the embodiment of the present invention, the position relationships of the devices such as "up", "down", "front", "back", "left", "right" in all the drawings all use fig. 1 as a standard.

Example 1

As shown in figure 1, the formaldehyde test sampling box of portable sampling, including open-top's box body 1, airtight space 2 and sampling bottle 3, sampling bottle is vertical fixed state when the sampling is worked, can also set up the collection pipe in the sampling bottle, and the collection intraductal setting can realize gathering the solid sorbent of benzene, toluene, xylol and TVOC and be used for adsorbing formaldehyde. In the specific implementation:

the airtight space 2 is formed by connecting the airtight partition plate 4 sliding in the vertical direction of the box body and the bottom and the side wall of the box body in a sealing mode, secondary sampling is carried out on the airtight space through the auxiliary sampling nozzle, and a secondary sampling space of formaldehyde is formed and is used for supplementing sampling sample formaldehyde gas in the sampling bottle. As shown in fig. 1 and 3, the top of the closed space 2 is provided with a suction pump 8, and the top is also used for secondary sampling through an auxiliary sampling nozzle 25, so that the closed space can be rapidly sampled; the air suction pump 8 absorbs air in a sampling space through an air suction nozzle 9 extending upwards, and conveys the absorbed air into a sampling bottle for collection through an electromagnetic valve 10 and an air inlet pipe 11 which are connected in sequence; in detail, as shown in fig. 2, the box body 1 is arranged in the transverse direction of the top of the sealed partition plate 4, and a sealing top cover 7 which can be pulled and opened is further arranged, so that the whole sampling box can be conveniently opened for sampling, or the sampling box is closed for closed sample delivery.

When the formaldehyde test sampling box is used, the sealing top cover 7, the auxiliary sampling nozzle 25, the suction nozzle 9 extending upwards, the suction pump 8, the electromagnetic valve 10 and the air inlet pipe 11 are opened for sampling. After sampling, the auxiliary sampling nozzle 25, the upward extending suction nozzle 9, the suction pump 8, the electromagnetic valve 10 and the air inlet pipe 11 are firstly closed, and then the sealing top cover 7 is closed to transport the sampling box.

It should be noted that the enclosed space 2 can be configured to slide up and down, and is mainly used to manually adjust the volume of the enclosed space 2, so as to ensure a certain pressure value in the enclosed space 2. The specific compression structure is that the top of the airtight partition plate 4 is further provided with a compression rod 23, the bottom of the compression rod 23 is fixed at the top of the airtight partition plate 4, the top of the compression rod 23 extends beyond the sealing top cover 7, and the top of the compression rod 23 is fastened on the side surface of the box body 1 through a fastening component 24, wherein the fastening component is wound and fixed on the box body through rubber bands, elastic threads, nylon ropes and the like or is matched and fixed with a fixing ring arranged on the box body through a hook with a fastening hook, and any structure can be used as long as the structure can fasten the compression rod 23 on the box body.

In the above embodiment, as shown in fig. 1 and 4, the sampling bottle 3 is removably connected to the inner wall of the box body through the bottom clamping groove 5 and the side fastening bracket 6, the bottom clamping groove 5 is generally provided with a U-shaped support fixed at the bottom of the box body, and the side fastening bracket 6 can be realized as an openable clamp or bushing structure as long as the sampling bottle 3 can be fastened and the sampling bottle can be taken out and replaced with a new sampling bottle smoothly.

Example 2

Different from the above embodiment, as shown in fig. 4, a vertical partition plate 12 may be disposed in the vertical direction of the enclosed space 2, the enclosed space is divided into a plurality of enclosed cavity units 13 by the vertical partition plate 12, a vertical sampling bottle 3 is disposed in each enclosed cavity unit 13, and each sampling bottle 3 is connected to the getter pump 8 through an air inlet pipe 11 and an electromagnetic valve 10; meanwhile, the getter pump 8 is connected to a PLC control device 14, and the PLC control device 14 controls the open and close states of each of the solenoid valves 10. The purpose of this embodiment is in order to realize that same sample box can gather the formaldehyde sample of a plurality of areas that need to detect, also can carry out a lot of samplings to the formaldehyde sample in same area, and then save the cost of sampling to conveniently send and use.

As shown in fig. 1 and 5, the PLC control device 14 is further connected to a timer 15 and a display device 16, and is configured to record and display the sampling time and the sampling capacity of each sampling bottle 3, that is, when each sampling bottle is sampled, the sampling time of the following sampling bottle can be controlled in a timing manner according to the sampling experience or the sampling time that has been tested, so as to ensure the sampling precision of the sampling bottle.

Example 3

What is different from

embodiments

1 and 2 is that, as shown in fig. 1 and 4, the box body 1 is provided with a vertical slide rail 17 corresponding to the sliding position of the sealed partition plate 4, and the outer side of the vertical slide rail 17 is wrapped with a vertical sealant layer 18, so that the sealed partition plate 4 can better ensure the sealing performance of the sealed space 2 while sliding well in the vertical direction of the inner wall of the box body.

In order to ensure better box body sealing performance, a transverse drawing slide rail 22 can be arranged in the drawing direction of the box body 1 corresponding to the sealing top cover 7, and meanwhile, the outer side of the transverse drawing slide rail 22 is wrapped with a transverse sealing glue layer 19.

Example 4

Different from the above embodiment, the box body is located in the closed space 2 and is further provided with the exhaust nozzle 20 for completely removing and absorbing the sampling air in the closed space, the exhaust nozzle 20 is generally used after the detection box is used, the use of the exhaust nozzle has the advantage of avoiding the damage of the detected residual formaldehyde to people, and the detection box can be directly reused after the removal.

In addition, as can be seen from fig. 5, each sampling bottle 3 is connected to a constant pressure valve 21 through an air supplementing port 31, the constant pressure valve 21 is placed in the closed space 2 to supplement the pressure of the sample air in the sampling bottle in real time, the use of the constant pressure valve is mainly to ensure that the pressure of the sample air in the sampling bottle is constant within a specified air pressure range, and when the pressure exceeds the specified air pressure range, the exhaust nozzle is unloaded to avoid the loss of the exhaust nozzle in the transportation process.

The embodiment of the present invention discloses a preferred embodiment, but not limited thereto, and those skilled in the art can easily understand the spirit of the present invention according to the above embodiment, and make different extensions and changes, but do not depart from the spirit of the present invention, all of which are within the protection scope of the present invention.

Claims

1. Formaldehyde test sampling box of portable sampling, its characterized in that: including open-top's box body (1), airtight space (2) and sampling bottle (3), the splendid attire has the collection liquid that can realize gathering formaldehyde in the air in the sampling bottle, wherein:

the closed space (2) is formed by sealing a closed partition plate (4) connected to the box body and sliding in the vertical direction with the bottom and the side wall of the box body, the top of the closed space is provided with an air suction pump (8), and secondary sampling is carried out on the top of the closed space through an auxiliary sampling nozzle (25);

the air suction pump (8) absorbs air in a sampling space through an air suction nozzle (9) extending upwards, and conveys the sucked air into a sampling bottle for collection through an electromagnetic valve (10) and an air inlet pipe (11) which are connected in sequence;

the box body (1) is located the horizontal direction at airtight baffle (4) top and has still arranged seal cap (7) that can the pull open, and airtight baffle (4) top still is equipped with compressing tightly pole (23), and compressing tightly pole (23) bottom is fixed at airtight baffle (4) top, and compressing tightly pole (23) top extends beyond seal cap (7) to compressing tightly pole (23) top is through a straining part (24) straining in the side of box body (1).

2. The formaldehyde test cartridge for portable sampling according to claim 1, wherein: the sampling bottle (3) is connected with the inner wall of the box body in a drawable way through a bottom clamping groove (5) and a side fastening bracket (6).

3. The formaldehyde test cartridge for portable sampling according to claim 1, wherein: a vertical partition plate (12) is arranged in the vertical direction of the closed space (2), the closed space is divided into a plurality of closed cavity units (13) by the vertical partition plate (12), a vertical sampling bottle (3) is arranged in each closed cavity unit (13), and each sampling bottle (3) is connected with a suction pump (8) through an air inlet pipe (11) and an electromagnetic valve (10);

meanwhile, the air suction pump (8) is connected with a PLC (programmable logic controller) device (14), and the PLC device (14) controls the opening and closing states of each electromagnetic valve (10).

4. The formaldehyde test cartridge for portable sampling according to claim 3, wherein: the PLC control device (14) is also connected with a timer (15) and a display device (16) and is used for recording and displaying the sampling time and the sampling volume of each sampling bottle (3).

5. The formaldehyde test cartridge for portable sampling according to claim 1, wherein: the box body (1) is provided with a vertical sliding rail (17) corresponding to the sliding position of the airtight partition board (4), and the outer side of the vertical sliding rail (17) is wrapped with a vertical sealing adhesive layer (18).

6. The formaldehyde test cartridge for portable sampling according to claim 5, wherein: the box body (1) is provided with a transverse drawing slide rail (22) corresponding to the drawing direction of the sealing top cover (7), and the outer side of the transverse drawing slide rail (22) is wrapped with a transverse sealing glue layer (19).

7. The formaldehyde test cartridge for portable sampling according to any one of claims 1 to 6, wherein: the box body is also provided with an exhaust nozzle (20) in the closed space (2) and used for completely removing and absorbing the sampling air in the closed space.

8. The formaldehyde test cartridge for portable sampling according to claim 7, wherein: each sampling bottle (3) is connected with a constant pressure valve (21) through an air supplementing port (31), and the constant pressure valve (21) is arranged in the closed space (2) to supplement the pressure of the sample air in the sampling bottle in real time.