CN213052010U - Laboratory fume chamber backward flow waste liquid collection device - Google Patents

Laboratory fume chamber backward flow waste liquid collection device Download PDF

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Publication number
CN213052010U
CN213052010U CN202021899479.4U CN202021899479U CN213052010U CN 213052010 U CN213052010 U CN 213052010U CN 202021899479 U CN202021899479 U CN 202021899479U CN 213052010 U CN213052010 U CN 213052010U
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China
Prior art keywords
waste liquid
waste gas
pipe
waste
collection device
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Expired - Fee Related
Application number
CN202021899479.4U
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Chinese (zh)
Inventor
李仕祥
占春瑞
罗秋红
韩颖
万建春
张烈远
马驰远
蔡丹
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Nanchang Customs Technical Center
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Nanchang Customs Technical Center
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Priority to CN202021899479.4U priority Critical patent/CN213052010U/en
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Publication of CN213052010U publication Critical patent/CN213052010U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to the technical field of experimental equipment, in particular to a backflow waste liquid collecting device for a laboratory ventilation cabinet, which comprises a ventilation cabinet and a waste gas exhaust pipe, wherein one end of the waste gas exhaust pipe is connected with a ventilation opening at the top of the ventilation cabinet, and the other end of the waste gas exhaust pipe is connected with an air inlet of a purifying pool; the waste gas discharge pipe is provided with a three-way pipeline which is of a T-shaped structure, two interfaces in the horizontal direction of the three-way pipeline are respectively connected with the waste gas discharge pipe, and a third interface of the three-way pipeline is communicated with an inner cavity of a waste liquid collecting bottle through a waste liquid discharge pipe. The utility model provides a fume chamber waste liquid water clock problem, ensure that the testing sample can not receive its pollution, the treatment facility of fume chamber can not corroded by the waste liquid.

Description

Laboratory fume chamber backward flow waste liquid collection device
Technical Field
The utility model relates to an experimental facilities technical field especially relates to a laboratory fume chamber backward flow waste liquid collection device.
Background
The fume hood is one of large-scale equipment in laboratory basic experiment equipment, and its use is to reduce experimenter and toxic gas contact, keeps apart and protect experimenter's first grade barrier, establishes effectual experimental environment.
Most laboratories, whether organic or inorganic, use fumehoods for chemical treatment in large batches, but the resulting fume hood effluent drip problem plagues all laboratories, which if not solved satisfactorily has several negative consequences: firstly, the leakage of the waste liquid can pollute the detection sample being processed; secondly, the dripping of the waste liquid can corrode treatment equipment arranged in the ventilation hood; and thirdly, the dripping of the waste liquid can be attached to the surrounding board surface of the ventilation cabinet, so that the speckles inside the ventilation cabinet can be obstructed to look at, and the ventilation cabinet is difficult to clean.
Placing a sample digestion device in a fume hood: electric furnace, electric heating plate, microwave digestion equipment and the like; a large number of chemical containers are placed on the electric heating plate, and a large number of acid-base solutions in the containers are evaporated, so that a large number of gases such as acid mist and water are inevitably generated, the gases are condensed in the ventilation pipeline to become liquid and flow back to the ventilation cabinet, and the more samples are processed, the larger the backflow amount is. This has a great adverse effect on the analysis work and must be eliminated by the way.
Just based on the above consideration, the utility model designs a laboratory fume chamber backward flow waste liquid collection device, simple structure, preparation are easy, low cost, effect are perfect.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art not enough, provide a laboratory fume chamber backward flow waste liquid collection device, solved the problem of fume chamber waste liquid water clock, ensure that the detection sample can not polluted by it, the treatment facility of fume chamber can not corroded by the waste liquid.
In order to realize the utility model discloses a purpose, the utility model discloses a technical scheme do:
the utility model discloses a laboratory fume hood backflow waste liquid collecting device, which comprises a fume hood and a waste gas exhaust pipe, wherein one end of the waste gas exhaust pipe is connected with a vent at the top of the fume hood, and the other end of the waste gas exhaust pipe is connected with an air inlet of a purification pool;
the waste gas discharge pipe is provided with a three-way pipeline which is of a T-shaped structure, two interfaces in the horizontal direction of the three-way pipeline are respectively connected with the waste gas discharge pipe, and a third interface of the three-way pipeline is communicated with an inner cavity of a waste liquid collecting bottle through a waste liquid discharge pipe.
And a valve is arranged on the waste liquid discharge pipe.
And the air outlet of the purification tank is connected with a frequency modulation control fan.
The waste liquid collecting bottle is provided with a quick connecting joint, the quick connecting joint is of a tubular structure, one end of the quick connecting joint is connected with a waste liquid inlet at the top of the waste liquid collecting bottle, the other end of the quick connecting joint forms a clamping portion sleeved in the waste liquid discharging pipe, the section diameter of the clamping portion is gradually reduced from the end portion of the quick connecting joint to the middle portion, and the waste liquid discharging pipe and one end of the clamping portion are externally sleeved with a locking nut clamped in a clamping manner matched with the clamping portion.
The inner hole of the locking nut forms a taper, and the aperture of the locking nut is gradually increased from the end part of the quick connection joint to the middle.
The beneficial effects of the utility model reside in that:
1. the utility model provides a fume chamber waste liquid water clock problem, ensure that the testing sample can not receive its pollution, the treatment facility of fume chamber can not corroded by the waste liquid.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic view of the connection between the middle waste discharge pipe and the waste liquid collecting bottle.
In the figure, 1 fume chamber, 2 exhaust pipes, 3 three-way pipes, 4 exhaust waste liquid pipes, 5 waste liquid collecting bottles, 6 valves, 7 frequency modulation control fans, 8 quick connecting mechanisms, 81 clamping parts, 82 locking nuts and 9 purifying ponds.
Detailed Description
The invention will be further described with reference to the following figures and examples:
see fig. 1-2.
The utility model discloses a laboratory fume hood backflow waste liquid collecting device, which comprises a fume hood 1 and a waste gas exhaust pipe 2, wherein one end of the waste gas exhaust pipe 2 is connected with a vent at the top of the fume hood 1, and the other end is connected with an air inlet of a purifying pool 9; the three-way pipeline 3 is arranged on the waste gas exhaust pipe 2, the three-way pipeline 3 is of a T-shaped structure, two interfaces in the horizontal direction of the three-way pipeline are respectively connected with the waste gas exhaust pipe 2, a third interface of the three-way pipeline is communicated with an inner cavity of a waste gas collecting bottle 5 through a waste gas exhaust pipe 4, and waste gas in the waste gas exhaust pipe 2 is collected through the waste gas collecting bottle 3 through the three-way pipeline 3, so that the problem of waste gas leakage of the fume hood 1 is solved, a detection sample is ensured not to be polluted by the waste gas exhaust pipe, and treatment equipment of the fume hood 1 is not corroded; the waste liquid collecting bottle 5 can be placed at the lower layer of the fume hood 1.
Be equipped with valve 6 on the liquid waste discharge pipe 4, through setting up valve 6, when liquid waste collecting bottle 5 collects full waste liquid and need handle, close the valve, ensure that the waste liquid can not flow by three way valve 3's third interface, handle when liquid waste collecting bottle 5, be connected its and liquid waste discharge pipe 4 after, reopen valve 6 can.
The air outlet of purification tank 9 is connected with frequency modulation control fan 7, and the gas after purification tank 9 handles passes through frequency modulation control fan 7 and discharges, and purification tank 9 and frequency modulation control fan 7 are prior art in the present case, and its structure is no longer repeated.
The waste liquid collecting bottle 5 is provided with a quick connecting joint 8, the quick connecting joint 8 is of a tubular structure, one end of the quick connecting joint 8 is connected with a waste liquid inlet at the top of the waste liquid collecting bottle 5, the other end of the quick connecting joint 8 forms a clamping part 81 sleeved in the waste liquid discharging pipe 4, the section diameter of the clamping part 81 is gradually reduced from the end part of the quick connecting joint 8 to the middle part, a locking nut 82 which is matched and clamped with the clamping part 81 is sleeved outside one end of the waste liquid discharging pipe 4 clamped with the clamping part 81, the clamping part 81 is sleeved with the waste liquid discharging pipe 4 through the taper, and then the clamping nut 82 is used for locking the clamping part, so that the waste liquid discharging pipe 4 is quickly clamped, the structure is simple, the operation is quick and convenient, the installation speed of the waste liquid collecting bottle 5 and the waste liquid discharging pipe 4 is greatly improved, and the replacement speed of the waste liquid collecting bottle 5, the waste liquid discharge pipe 4 is a hose.
The hole of lock nut 82 forms the tapering, lock nut 82's aperture is crescent to the centre by the tip of quick connect coupling 8, and lock nut 82 is the tapering opposite with joint portion 81 to make lock nut 82 can be better with joint portion 81 cooperation with the waste liquid pipe 4 of will discharging lock.
The above mentioned is only the embodiment of the present invention, not the limitation of the patent scope of the present invention, all the equivalent transformations made by the contents of the specification and the drawings or the direct or indirect application in the related technical field are included in the patent protection scope of the present invention.

Claims (5)

1. The utility model provides a laboratory fume chamber backward flow waste liquid collection device which characterized in that: the device comprises a ventilation cabinet (1) and a waste gas exhaust pipe (2), wherein one end of the waste gas exhaust pipe (2) is connected with a ventilation opening at the top of the ventilation cabinet (1), and the other end of the waste gas exhaust pipe is connected with an air inlet of a purification pool (9);
the waste gas discharge pipe (2) is provided with a three-way pipe (3), the three-way pipe (3) is of a T-shaped structure, two connectors in the horizontal direction of the three-way pipe are respectively connected with the waste gas discharge pipe (2), and a third connector of the three-way pipe is communicated with an inner cavity of a waste liquid collecting bottle (5) through a waste gas discharge pipe (4).
2. The laboratory fume hood return waste liquid collection device of claim 1, characterized in that: and a valve (6) is arranged on the waste liquid discharge pipe (4).
3. The laboratory fume hood return waste liquid collection device of claim 2, characterized in that: and an air outlet of the purification tank (9) is connected with the frequency modulation control fan (7).
4. The laboratory fume hood return waste liquid collection device of claim 3, characterized in that: be equipped with quick connect coupling (8) on waste liquid collecting bottle (5), quick connect coupling (8) are the tubular structure, the one end of quick connect coupling (8) with the waste liquid inlet at waste liquid collecting bottle (5) top is connected, and the other end forms and is used for the suit in joint portion (81) in arranging waste liquid pipe (4), the cross-sectional diameter of joint portion (81) is reduced to the middle part by the tip of quick connect coupling (8) gradually, arrange waste liquid pipe (4) with the outside cover of one end of joint portion (81) is equipped with lock nut (82) with joint portion (81) cooperation chucking.
5. The laboratory fume hood return waste liquid collection device of claim 4, wherein: the inner hole of the locking nut (82) forms a taper, and the aperture of the locking nut (82) is gradually increased from the end part of the quick connection joint (8) to the middle.
CN202021899479.4U 2020-09-03 2020-09-03 Laboratory fume chamber backward flow waste liquid collection device Expired - Fee Related CN213052010U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202021899479.4U CN213052010U (en) 2020-09-03 2020-09-03 Laboratory fume chamber backward flow waste liquid collection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202021899479.4U CN213052010U (en) 2020-09-03 2020-09-03 Laboratory fume chamber backward flow waste liquid collection device

Publications (1)

Publication Number Publication Date
CN213052010U true CN213052010U (en) 2021-04-27

Family

ID=75556510

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202021899479.4U Expired - Fee Related CN213052010U (en) 2020-09-03 2020-09-03 Laboratory fume chamber backward flow waste liquid collection device

Country Status (1)

Country Link
CN (1) CN213052010U (en)

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CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20210427

Termination date: 20210903