CN218629676U - Detection is with entrapment equipment that sweeps - Google Patents

Abstract

The utility model discloses a detect with entrapment equipment that sweeps, including support frame, backup pad one, backup pad two, backup pad three, add the liquid storehouse, liquid feeding pipe, add liquid valve, lift cylinder, link, sealing plug and gas storage storehouse, backup pad one, backup pad two and backup pad three are located on the support frame, it locates on the backup pad three to add the liquid storehouse, the gas storage storehouse is located on backup pad one and the backup pad two, liquid feeding pipe one end is connected in adding the liquid storehouse, the liquid feeding pipe other end is connected in the gas storage storehouse. The utility model belongs to the technical field of the entrapment equipment that sweeps, specifically indicate that a structure is compacter, and convenient to use can be to the detection of water sample ration usefulness with the entrapment equipment that sweeps.

Description

A purge and trap device for detection

technical field

The utility model belongs to the technical field of purge and trap equipment, in particular to a purge and trap equipment for detection.

Background technique

In the existing life, the purge and trap method is generally to use high-purity nitrogen or helium as the carrier gas to purge the water or soil samples in the chamber, and the volatile organic gases dissolved in the soil or water are purged out and enriched in the In the trapping tube, trapping can be carried out at room temperature. After the purge is completed, the trapping tube is heated instantaneously, so that the trapped gas to be analyzed enters the chromatograph for measurement. Nowadays, purge and trap technology is widely used.

The patent with the publication number CN209640303U discloses a volatile organic compound purging and trapping device. The water sample to be tested enters the sample tube from the liquid inlet pipe through the water pump, and the inert carrier gas is blown into the bottom of the sample tube through the carrier gas dispersion structure. The carrier gas dispersion structure is composed of two or more annular glass tubes with exhaust holes. When the inert carrier gas enters the annular glass tube, it will enter the water sample to be tested through the exhaust holes, so that the inert carrier gas and the sample to be tested The water sample is fully contacted and produces many tiny bubbles, and the volatile organic compounds in the water sample to be tested become gaseous and exist in the inert carrier gas, thereby taking out the volatile organic compounds in the water sample to be tested, and the volatile organic compounds in the water sample to be tested The purging of sexual organic matter is more uniform and effective, and then enters the gas drying pipe through the three-way valve 2 for moisture absorption, and then enters the trapping pipe through the gas circulation pipe 2. This process is not convenient for quantitatively taking water samples, and the overall volume is relatively small Big, not easy to use.

Utility model content

In order to solve the above-mentioned problems, the utility model provides a more compact structure, easy to use, and a detection purge and trapping device that can quantitatively take water samples.

In order to achieve the above functions, the technical scheme adopted by the utility model is as follows: a detection purge and trapping device, including a support frame, support plate 1, support plate 2, support plate 3, liquid addition chamber, liquid addition pipe, liquid addition Valves, lifting cylinders, connecting frames, sealing plugs and gas storage bins, the first support plate, the second support plate and the third support plate are arranged on the support frame, the liquid adding bin is arranged on the third support plate, and the gas storage The warehouse is arranged on the support plate 1 and the support plate 2, one end of the liquid feeding pipe is connected to the liquid feeding chamber, the other end of the liquid feeding pipe is connected to the gas storage chamber, and the liquid feeding valve is arranged on the liquid feeding pipe. The sealing plug is set in the gas storage bin, the connection is erected on the sealing plug, one end of the lifting cylinder is set under the top wall of the gas storage bin, and the other end of the lifting cylinder is set on the top wall of the connecting frame. The gas is injected into the gas storage chamber, a certain amount of water is placed in the liquid filling chamber, the liquid filling valve is opened, the water in the liquid filling chamber flows into the gas storage chamber from the liquid filling pipe, and the lifting cylinder drives the connecting frame and the sealing plug Ascent, the inert gas floats upward in the water at this time, taking out the volatile organic compounds in the water sample.

Preferably, a support bracket is provided on the outer wall of the support frame, and a collection tube is provided on the support bracket, one end of the collection tube is connected to a connecting pipe 2, and the other end of the collection tube is connected to an outlet A gas pipe, one end of the connecting pipe 2 is connected with a gas drying pipe, the connection between the gas drying pipe and the top wall of the gas storage bin is provided with a connecting pipe 1, and the connecting pipe 1 is arranged through the side wall of the support frame, and the The gas drying tube is fixedly sleeved with a support sleeve, and the support sleeve is sleeved on the gas drying tube and set on the support bracket at the same time to increase stability, take out the volatile organic matter in the water sample, and pass through the connecting tube One enters the inside of the gas drying tube, dries the gas through the desiccant particles, and then enters the inside of the trapping tube through the connecting tube two, and the trapping tube resolves all volatile organic compounds, and enters the chromatographic through the flow of inert carrier gas In-device testing.

Preferably, an inner support is provided on the inner side wall of the gas storage chamber, and a socket block is provided on the outer wall of the connecting frame, and the socket block is slidably arranged through the inner frame to increase the stability of the connecting frame when moving.

Preferably, the sealing plug is provided with a deflector, the side wall of the deflector is inclined, and the water flows down along the side wall of the deflector.

Preferably, the liquid addition chamber has a U-shaped structure, and a scale is provided on the outer wall of the liquid addition chamber to assist observation and quantitatively add water in the liquid addition chamber.

Preferably, the bottom of the gas storage bin has a U-shaped structure, an air inlet is provided under the bottom wall of the gas storage bin, and an air inlet valve is provided on the air inlet to facilitate the injection of inert gas into the gas storage bin.

The utility model adopts the above-mentioned structure to obtain the following beneficial effects: a detection purge and trapping device provided by the utility model has a compact overall structure and is easy to use. Put the water in the liquid filling chamber, open the liquid filling valve, and let the water in the liquid filling chamber flow into the gas storage chamber from the liquid filling pipe. The lifting cylinder drives the connecting frame and the sealing plug to rise, and the inert gas floats upward in the water , take out the volatile organic matter in the water sample, enter the gas drying tube through the connecting tube one, dry the gas through the desiccant particles, and then enter the trapping tube through the connecting tube two, the trapping tube will volatile All the organic matters are resolved, and enter the chromatograph through the flow of inert carrier gas for detection, and use the scale to assist in observation, and quantitatively add the water in the liquid addition chamber.

Description of drawings

Fig. 1 is the overall structural diagram of a kind of detection purge and trapping equipment of the present invention;

FIG. 2 is a partial enlarged view of A in FIG. 1 .

Among them, 1. Support frame, 2. Support plate one, 3. Support plate two, 4. Support plate three, 5. Liquid filling chamber, 6. Liquid filling pipe, 7. Liquid filling valve, 8. Lifting cylinder, 9, Connecting frame, 10, sealing plug, 11, gas storage bin, 12, connecting pipe one, 13, connecting pipe two, 14, supporting sleeve plate, 15, gas drying pipe, 16, gas outlet pipe, 17, collecting pipe, 18 , support bracket, 19, scale, 20, air inlet, 21, air inlet valve, 22, deflector, 23, socket block, 24, inner bracket.

Detailed ways

The technical solutions of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are part of the embodiments of the utility model, but not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" The orientation or positional relationship indicated by etc. is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, use a specific The azimuth structure and operation, therefore can not be construed as the limitation of the present utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and should not be construed as indicating or implying relative importance. Below in conjunction with accompanying drawing, the utility model is described in further detail.

As shown in Figure 1-2, the utility model is a kind of purge and trapping equipment for detection, including a support frame 1, a support plate 2, a support plate 2 3, a support plate 3 4, a liquid addition chamber 5, and a liquid addition pipe 6 , liquid filling valve 7, lifting cylinder 8, connecting frame 9, sealing plug 10 and gas storage bin 11, supporting plate one 2, supporting plate two 3 and supporting plate three 4 are arranged on the supporting frame 1, and liquid adding bin 5 is located on On the support plate three 4, the liquid filling chamber 5 is a U-shaped structure, a scale 19 is arranged on the outer wall of the liquid adding chamber 5, the gas storage chamber 11 is arranged on the support plate one 2 and the support plate two 3, and the bottom of the gas storage chamber 11 It is a U-shaped structure, an air inlet 20 is provided under the bottom wall of the gas storage bin 11, an air inlet valve 21 is arranged on the air inlet 20, one end of the liquid feeding pipe 6 is connected to the liquid feeding chamber 5, and the other end of the liquid feeding pipe 6 is connected to In the gas storage bin 11, the liquid filling valve 7 is set on the liquid filling pipe 6, the sealing plug 10 is set in the gas storage bin 11, the connecting frame 9 is set on the sealing plug 10, and one end of the lifting cylinder 8 is set on the top of the gas storage bin 11 Under the wall, the lifting cylinder 8 other ends are located on the connecting frame 9 top walls.

As shown in Figure 1, a support bracket 18 is provided on the outer wall of the support frame 1, and a catch tube 17 is provided on the support bracket 18, and one end of the catch tube 17 is connected with a connecting pipe 13, and the other end of the catch tube 17 is connected to There is a gas outlet pipe 16, one end of the connecting pipe 13 is connected with a gas drying pipe 15, the connection between the gas drying pipe 15 and the top wall of the gas storage bin 11 is provided with a connecting pipe 12, and the connecting pipe 12 is arranged through the side wall of the support frame 1 , the gas drying pipe 15 is fixedly sleeved with a supporting sleeve 14 , and the supporting sleeve 14 is sleeved on the gas drying pipe 15 and is set on the supporting bracket 18 at the same time.

As shown in Figure 2, an inner bracket 24 is provided on the inner side wall of the gas storage bin 11, a socket block 23 is provided on the outer wall of the connecting frame 9, the socket block 23 slides through the inner bracket 24, and the sealing plug 10 is provided with a guide. The flow plate 22 and the side wall of the flow guide plate 22 are arranged obliquely.

During specific use, inert gas is injected into the gas storage bin 11 in advance, a certain amount of water is placed in the liquid addition bin 5, and the water in the liquid addition bin 5 is quantitatively added through the scale 19 for auxiliary observation. After the addition is completed, Open the liquid filling valve 7, and the water in the liquid filling chamber 5 will flow into the air storage chamber 11 from the liquid filling pipe 6, and the water will seal the top of the air storage chamber 11, and the lifting cylinder 8 will drive the connecting frame 9 and the sealing plug 10 to rise. When the inert gas floats upwards in the water, the volatile organic matter in the water sample is taken out, enters the inside of the gas drying pipe 15 through the connecting pipe 12, and dries the gas through the desiccant particles, and then enters the trapping pipe through the connecting pipe 2 13 Inside the tube 17, the trapping tube 17 resolves all the volatile organic compounds, and enters the chromatograph through the flow of the inert carrier gas for detection.

The utility model and its implementation have been described above. This description is not restrictive. What is shown in the drawings is only one implementation of the utility model, and the actual structure is not limited thereto. All in all, if a person of ordinary skill in the art is inspired by it, without departing from the purpose of the utility model, without creatively designing a structural method and embodiment similar to the technical solution, it shall be protected by the utility model scope.

Claims (6)

1. The utility model provides a detection is with sweeping entrapment equipment which characterized in that: including support frame, backup pad one, backup pad two, backup pad three, add liquid storehouse, liquid feeding pipe, liquid feeding valve, lift cylinder, link, sealing plug and gas storage storehouse, backup pad one, backup pad two and backup pad three are located on the support frame, add the liquid storehouse and locate on the backup pad three, the gas storage storehouse is located on backup pad one and the backup pad two, liquid feeding pipe one end is connected in adding the liquid storehouse, the liquid feeding pipe other end is connected in the gas storage storehouse, the liquid feeding valve is located on the liquid feeding pipe, the sealing plug is located in the gas storage storehouse, the link is located on the sealing plug, lift cylinder one end is located under the gas storage storehouse roof, the lift cylinder other end is located on the link roof.

2. A purge and trap apparatus for testing according to claim 1, wherein: the gas storage bin is characterized in that a supporting bracket is arranged on the outer side wall of the supporting frame, a collecting pipe is arranged on the supporting bracket, one end of the collecting pipe is connected with a second connecting pipe, the other end of the collecting pipe is connected with a gas outlet pipe, one end of the second connecting pipe is connected with a gas drying pipe, a first connecting pipe is arranged at the joint of the gas drying pipe and the top wall of the gas storage bin, a first connecting pipe penetrates through the side wall of the supporting frame, a supporting sleeve plate is fixedly sleeved on the gas drying pipe, and the supporting sleeve plate is sleeved on the supporting bracket when the gas drying pipe is arranged.

3. A purge and trap apparatus for testing according to claim 2, wherein: the inner side wall of the gas storage bin is provided with an inner support, the outer side wall of the connecting frame is provided with a sleeving block, and the sleeving block penetrates through the inner support to be arranged in a sliding mode.

4. A purge and trap apparatus for testing according to claim 3, wherein: and a guide plate is arranged on the sealing plug, and the side wall of the guide plate is obliquely arranged.

5. The purge and trap apparatus for testing according to claim 4, wherein: the liquid feeding bin is of a U-shaped structure, and a graduated scale is arranged on the outer side wall of the liquid feeding bin.

6. A purge and trap apparatus for testing according to claim 5, wherein: the bottom of the gas storage bin is of a U-shaped structure, an air inlet is formed in the bottom wall of the gas storage bin, and an air inlet valve is arranged on the air inlet.

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