CN217954245U

CN217954245U - Indoor air formaldehyde detects absorption liquid business turn over device

Info

Publication number: CN217954245U
Application number: CN202221899099.XU
Authority: CN
Inventors: 朱田生; 刘长顺; 杨志; 郑继; 徐伟; 张成银; 张亚涛; 刘磊; 吴超; 徐良; 秦岭; 孙述彬; 江腾寿; 张坤; 丁晓竟; 余国伟
Original assignee: Anhui Construction Engineering Quality Supervision And Inspection Station Co ltd; Anhui & Huaihe River Institute Of Hydraulic Research (anhui Water Conservancy Project Quality Inspection Center Station)
Current assignee: Anhui Construction Engineering Quality Supervision And Inspection Station Co ltd; Anhui & Huaihe River Institute Of Hydraulic Research (anhui Water Conservancy Project Quality Inspection Center Station)
Priority date: 2022-07-22
Filing date: 2022-07-22
Publication date: 2022-12-02
Anticipated expiration: 2032-07-22

Abstract

The utility model provides an indoor air formaldehyde detects absorption liquid business turn over device belongs to indoor environment and detects technical field, the power distribution box comprises a box body, be provided with the chamber door on the box, the inside volumetric flask that stores the formaldehyde absorption liquid that is provided with of box, volumetric flask bottleneck department is provided with the bottle plug, the bottle plug runs through and is provided with second feed liquor pipe and first drain pipe, the bottle plug still runs through the breather pipe that maintains the atmospheric pressure balance inside and outside the volumetric flask, the feed liquor end of second feed liquor pipe is provided with the feed liquor pump, the feed liquor end of feed liquor pump is provided with first feed liquor pipe, the liquid outlet end of first drain pipe is provided with the measuring pump, the liquid outlet end of measuring pump is provided with the second drain pipe, be provided with series connection's little flow control valve, check valve and flowmeter on the second drain pipe, the utility model discloses rational in infrastructure, the absorption liquid is pumped in advance to pump out, can realize accurate measurement to when avoiding adopting traditional approach to use the absorption liquid, the risk of formaldehyde pollution in the air when uncapping many times or toppling over the absorption liquid.

Description

Indoor air formaldehyde detects absorption liquid business turn over device

Technical Field

The utility model belongs to the technical field of indoor environment detects, specifically be an indoor air formaldehyde detects absorption liquid business turn over device.

Background

The indoor air quality directly concerns human health, formaldehyde belongs to one of indoor air quality standard strict control pollutants, and a newly-decorated room has high formaldehyde content and is a main cause of numerous diseases, so that the strict control standard is established for indoor formaldehyde in China.

Currently, AHMT spectrophotometry and phenol reagent spectrophotometry are the detection methods commonly used in the standards. According to the two methods, the absorption liquid needs to be filled into the bubble absorption tube for sampling, the absorption liquid can easily absorb formaldehyde in the air, and in the stage of preparing the absorption liquid, when the absorption liquid is uncovered or poured for multiple times, the absorption liquid is polluted by the formaldehyde in the air, so that blank reference in the detection process is increased continuously, and the detection result is directly influenced. In addition, when the absorption liquid is measured, the influence of manual operation is large, and the measurement error can have large influence on the experimental result. Therefore, it is necessary to design an indoor air formaldehyde detecting absorption liquid inlet and outlet device to avoid the above disadvantages.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims at providing an indoor air formaldehyde detects absorption liquid business turn over device to solve the problem that proposes in the above-mentioned background art, the utility model discloses rational in infrastructure, absorption liquid advances to pump out through the pump, can realize accurate measurement to when avoiding adopting traditional approach to use absorption liquid, the risk of being polluted by the formaldehyde in the air when uncapping many times or empting absorption liquid.

In order to achieve the above purpose, the present invention is realized by the following technical solution: the utility model provides an indoor air formaldehyde detects absorption liquid business turn over device, the power distribution box comprises a box body, be provided with the chamber door on the box, the inside volumetric flask that is provided with storage formaldehyde absorption liquid of box, volumetric flask bottleneck department is provided with the bottle plug, the bottle plug runs through and is provided with second feed liquor pipe and first drain pipe, the bottle plug has still run through the maintenance the inside and outside atmospheric pressure balanced breather pipe of volumetric flask, the feed liquor end of second feed liquor pipe is provided with the feed liquor pump, the feed liquor end of feed liquor pump is provided with first feed liquor pipe, the liquid end of first drain pipe is provided with the measuring pump, the liquid end of measuring pump is provided with the second drain pipe, be provided with series connection's trickle regulation valve, check valve and flowmeter on the second drain pipe, the feed liquor end of flowmeter with the liquid end of measuring pump is connected.

Furthermore, the volumetric flask is a transparent glass bottle, the volumetric flask has a capacity of 500 mL-1000 mL, and a liquid level line is arranged on the volumetric flask.

Furthermore, one end of the second liquid inlet pipe in the volumetric flask is higher than the highest position of the liquid level line, and one end of the first liquid outlet pipe in the volumetric flask is lower than the lowest position of the liquid level line.

Furthermore, a rechargeable power supply is arranged inside the box body, the output end of the rechargeable power supply is electrically connected with the liquid inlet pump and the input end of the metering pump, a liquid inlet pump switch is arranged between the rechargeable power supply and the liquid inlet pump, and a metering pump switch is arranged between the rechargeable power supply and the metering pump.

Further, the outer surface of the box body is provided with a handle.

Furthermore, the top of the first liquid inlet pipe, the top of the second liquid outlet pipe and the top of the vent pipe penetrate through the box body, and the top of the first liquid inlet pipe, the top of the second liquid outlet pipe and the top of the vent pipe are provided with dustproof plugs.

Further, an observation window is arranged on the box door.

The utility model has the advantages that: the utility model is suitable for the detection and use, is convenient to carry, and can avoid the defect that collision and breakage easily occur among glassware when absorbing liquid is measured by adopting a traditional method; the formaldehyde absorption liquid is pumped in and out through the pump, so that accurate metering can be realized, and the risk of formaldehyde pollution in the air when the absorption liquid is opened or poured for many times in the traditional method is avoided.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

fig. 1 is a schematic structural view of the indoor air formaldehyde detection absorption liquid inlet and outlet device of the present invention;

FIG. 2 is a front sectional view of the device for detecting the formaldehyde in the indoor air;

FIG. 3 is a schematic diagram of the connection of a rechargeable power supply in the indoor air formaldehyde detection absorption liquid inlet and outlet device of the present invention;

in the figure: the automatic liquid feeding device comprises a box body 1, a handle 101, a box door 2, an observation window 21, a second liquid outlet pipe 3, a small flow regulating valve 301, a check valve 302, a flow meter 303, a first liquid inlet pipe 4, a vent pipe 5, a liquid inlet pump 6, a second liquid inlet pipe 7, a volumetric flask 8, a bottle stopper 81, a first liquid outlet pipe 9, a metering pump 10, a rechargeable power supply 11, a liquid inlet pump switch 111 and a metering pump switch 112.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

Referring to fig. 1 to 3, the present invention provides a technical solution: the utility model provides an indoor air formaldehyde detects absorption liquid business turn over device, the power distribution box comprises a box body 1, be provided with chamber door 2 on the

box

1, 1 inside volumetric flask 8 of storing formaldehyde absorption liquid that is provided with of box, 8 bottleneck departments of volumetric flask are provided with bottle plug 81, bottle plug 81 runs through and is provided with second feed liquor pipe 7 and first drain pipe 9, bottle plug 81 still runs through has the breather pipe 5 of maintaining 8 inside and outside atmospheric pressure balances of volumetric flask, the feed liquor end of second feed liquor pipe 7 is provided with feed liquor pump 6, the feed liquor end of feed liquor pump 6 is provided with first feed liquor pipe 4, the liquid end of first drain pipe 9 is provided with measuring pump 10, the liquid end of measuring pump 10 is provided with second drain pipe 3, be provided with series connection's little flow control valve 301 on the second drain pipe 3, check valve 302 and flowmeter 303, the feed liquor end and the liquid end of flowmeter 303 are connected with the liquid end of measuring pump 10, formaldehyde absorption liquid collection device simple structure, the easy contaminated problem of formaldehyde absorption liquid.

The utility model discloses a volumetric flask 8 is the clear glass bottle, is provided with observation window 21 on chamber door 2, and the staff of being convenient for looks over the real-time condition in the volumetric flask 8, is provided with the liquid level line on the volumetric flask 8, and the one end that second feed liquor pipe 7 is located volumetric flask 8 is higher than the highest position of liquid level line, and the one end that first drain pipe 9 is located volumetric flask 8 is less than the lowest position of liquid level line, prevents that formaldehyde liquid from flowing back to second feed liquor pipe 7.

The utility model discloses a volumetric flask 8's capacity is 500mL ~ 1000mL, is fit for holding the minimum allowable input of formaldehyde absorption liquid, reduces the space and occupies, and then reduces box 1's space.

The utility model discloses an outer surface of box 1 is provided with handle 101, and box 1 is inside to be provided with rechargeable power supply 11, and the output of rechargeable power supply 11 is connected with the input electricity of feed liquor pump 6 and measuring pump 10, and rechargeable power supply 11 conveniently removes the use, and it is convenient to charge for supply power to feed liquor pump 6 and measuring pump 10 anytime and anywhere, be convenient for whole device portable use; a liquid inlet pump switch 111 is arranged between the rechargeable power supply 11 and the liquid inlet pump 6, and a metering pump switch 112 is arranged between the rechargeable power supply 11 and the metering pump 10, so that the operation of the liquid inlet pump 6 and the metering pump 10 can be conveniently controlled.

The utility model discloses a box 1 is all run through at the top of first feed liquor pipe 4, second drain pipe 3, breather pipe 5, and the top of first feed liquor pipe 4, second drain pipe 3, breather pipe 5 sets up dustproof chock plug, and the preventing device is inside the external environment pollution device when not using.

As an embodiment of the present invention: after the first liquid inlet pipe 4 is connected with the formaldehyde absorption liquid, the liquid inlet pump switch 111 is turned on, the formaldehyde absorption liquid is sent into the volumetric flask 8 through the second liquid inlet pipe 7 by the liquid inlet pump 6, the operator observes the increase of the formaldehyde absorption liquid in the volumetric flask 8 through the observation window 21 until the formaldehyde absorption liquid reaches the highest position of the liquid level line of the volumetric flask 8, and the liquid inlet pump switch 111 is turned off; then a metering pump switch 112 is opened to meter the formaldehyde absorption liquid, the flow rate of the formaldehyde absorption liquid is regulated by controlling a small flow regulating valve 301, and the check valve 302 prevents the formaldehyde absorption liquid from being sucked backwards;

when the formaldehyde absorption liquid is filled in the first liquid outlet pipe 9 and the second liquid outlet pipe 3, the metering pump switch 112 is closed, the tail end of the second liquid outlet pipe 3 is connected with the formaldehyde solution collecting container, at this time, the flowmeter 303 records an initial value P1 until the flowmeter 303 reaches a preset flow P, the metering pump switch 112 is closed, the metering pump 10 stops supplying liquid, the flowmeter 303 records a tail value P2, and P = P2-P1, the P value is smaller than the volume difference value between the highest position and the lowest position of the liquid level line, and finally the preset flow value P is obtained in the formaldehyde solution collecting container.

While there have been shown and described what are at present considered the fundamental principles and essential features of the application and its advantages, it will be apparent to those skilled in the art that the application is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics of the application. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present specification describes embodiments, not every embodiment includes only a single embodiment, and such description is for clarity purposes only, and it is to be understood that all embodiments may be combined as appropriate by one of ordinary skill in the art to form other embodiments as will be apparent to those of skill in the art from the description herein.

Claims

1. The utility model provides an indoor air formaldehyde detects absorption liquid business turn over device, includes box (1), be provided with chamber door (2) on box (1), its characterized in that: the utility model discloses a formaldehyde absorption liquid measuring device, including box (1), volumetric flask (8) of storing formaldehyde absorption liquid are provided with to box (1) inside, volumetric flask (8) bottleneck department is provided with bottle plug (81), bottle plug (81) run through and are provided with second feed liquor pipe (7) and first drain pipe (9), bottle plug (81) still run through and maintain breather pipe (5) that the atmospheric pressure is balanced inside and outside volumetric flask (8), the feed liquor end of second feed liquor pipe (7) is provided with feed liquor pump (6), the feed liquor end of feed liquor pump (6) is provided with first feed liquor pipe (4), the play liquid end of first drain pipe (9) is provided with measuring pump (10), the play liquid end of measuring pump (10) is provided with second drain pipe (3), be provided with series connection's small flow control valve (301), check valve (302) and flowmeter (303) on second drain pipe (3), the feed liquor end of flowmeter (303) with the play liquid end of measuring pump (10) is connected.

2. The indoor air formaldehyde detecting absorption liquid inlet and outlet device according to claim 1, characterized in that: the measuring flask (8) is a transparent glass bottle, the capacity of the measuring flask (8) is 500-1000 mL, and a liquid level line is arranged on the measuring flask (8).

3. The indoor air formaldehyde detection absorption liquid inlet and outlet device according to claim 2, characterized in that: the second liquid inlet pipe (7) is located at one end in the volumetric flask (8) and is higher than the highest position of the liquid level line, and the first liquid outlet pipe (9) is located at one end in the volumetric flask (8) and is lower than the lowest position of the liquid level line.

4. The indoor air formaldehyde detection absorption liquid inlet and outlet device as claimed in claim 1, wherein: the utility model discloses a but box (1) inside is provided with rechargeable power supply (11), the output of rechargeable power supply (11) with feed liquor pump (6) with the input electricity of measuring pump (10) is connected, be provided with feed liquor pump switch (111) between rechargeable power supply (11) and feed liquor pump (6), be provided with measuring pump switch (112) between rechargeable power supply (11) and measuring pump (10).

5. The indoor air formaldehyde detection absorption liquid inlet and outlet device according to claim 4, characterized in that: the outer surface of the box body (1) is provided with a handle (101).

6. The indoor air formaldehyde detecting absorption liquid inlet and outlet device according to claim 1, characterized in that: the box body (1) is penetrated through the tops of the first liquid inlet pipe (4), the second liquid outlet pipe (3) and the vent pipe (5), and the tops of the first liquid inlet pipe (4), the second liquid outlet pipe (3) and the vent pipe (5) are provided with dustproof plugs.

7. The indoor air formaldehyde detecting absorption liquid inlet and outlet device according to claim 1, characterized in that: an observation window (21) is arranged on the box door (2).