CN211927899U

CN211927899U - Direct measuring device for gas content

Info

Publication number: CN211927899U
Application number: CN202020527459.8U
Authority: CN
Inventors: 王付龙; 王中强
Original assignee: Zhengzhou Huazhi Technology Co ltd
Current assignee: Zhengzhou Huazhi Technology Co ltd
Priority date: 2020-04-10
Filing date: 2020-04-10
Publication date: 2020-11-13
Anticipated expiration: 2030-04-10

Abstract

The utility model relates to a direct measuring device for gas content, which comprises a base, a burette and a water injection mechanism, wherein the burette and the water injection mechanism are arranged on the base; the side wall of the measuring tube is provided with scales, the lower end of the measuring tube is provided with a first water replenishing port, a first air inlet and a water outlet, a base is provided with a second water replenishing port connected with the first water replenishing port, a one-way rubber plug is arranged in the second water replenishing port, the base is provided with a second air inlet communicated with the first air inlet, the second air inlet is connected with a coal sample tank through an exhaust pipe, and the exhaust pipe is provided with a spring clamp; the utility model discloses can realize quick moisturizing under the prerequisite of not invering buret, simplify the moisturizing flow, also need not be interrupted survey work in the moisturizing in the vector pipe, improve survey efficiency.

Description

Direct measuring device for gas content

Technical Field

The utility model belongs to the technical field of direct survey coal seam gas content in the pit, concretely relates to gas content direct measurement device.

Background

The underground natural analysis gas quantity adopts a gas analysis instrument, the gas analysis instrument comprises a measuring pipe, a hanging ring arranged at the top of the measuring pipe, a water outlet arranged at the bottom of the measuring pipe, a bottom plug and an exhaust pipe according to GB/T23250-2009 underground direct measuring method for coal seam gas content, a spring clamp is arranged on the exhaust pipe, and a puncture needle head or a valve is arranged at the free end of the exhaust pipe; after the coal sample tank is connected with the analyzer through the exhaust pipe, the spring clamp is opened, gas discharged from the coal sample immediately enters the measuring pipe, and the gas is collected in the measuring pipe by a drainage and gas collection method, wherein continuous observation is usually required for 60 min; if the volume of the burette is not enough to accommodate all gas discharged from the coal sample tank within 60min, the exhaust pipe needs to be clamped by a spring clamp in the midway to disconnect the coal sample tank from the analyzer, and the spring clamp is opened to connect the coal sample tank with the analyzer for continuous observation after clear water is supplemented into the burette; because the water filling port is arranged at the lower part of the measuring pipe, the measuring pipe is inverted when the water outlet is required to be plugged by fingers during supplying clear water, the traditional gas analyzer is turned over after water is filled, and if the finger is not plugged tightly, water leakage is easy, the water supply process is complex and inconvenient.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the not enough of prior art and providing a can be under the prerequisite of not overturning buret fast water supply's gas content direct measurement device in the buret.

The technical scheme of the utility model as follows:

the direct measuring device of the gas content comprises a base, a measuring pipe arranged on the base and a water injection mechanism; the side wall of the measuring tube is provided with scales, the lower end of the measuring tube is provided with a first water replenishing port, a first air inlet and a water outlet, a base is provided with a second water replenishing port connected with the first water replenishing port, a one-way rubber plug is arranged in the second water replenishing port, the base is provided with a second air inlet communicated with the first air inlet, the second air inlet is connected with a coal sample tank through an exhaust pipe, and the exhaust pipe is provided with a spring clamp;

the water injection mechanism comprises a water injection barrel with a hollow cavity and an injection push rod inserted in the water injection barrel, scales are arranged on the water injection barrel, a thin barrel part communicated with the hollow cavity extends downwards from the lower end of the water injection barrel, and an elastic plug body in sliding connection with the inner wall of the water injection barrel is arranged at the lower end of the injection push rod; the thin cylinder part can be inserted into the one-way rubber plug and injected with water in a sealing way in the vector tube.

Furthermore, the first water replenishing port is communicated with the second water replenishing port through a water replenishing pipe, a one-way valve is arranged on the water replenishing pipe, and the water replenishing pipe is arranged in the base or outside the base.

Furthermore, the top end of the burette is provided with a water injection port, and a sealing cover is arranged on the water injection port.

Furthermore, the upper part of the water injection barrel is provided with a limiting ring for preventing the elastic plug body from being separated from the water injection barrel.

Furthermore, the upper portion center of one-way rubber buffer is provided with the elasticity flap group of constituteing by a plurality of first elasticity flaps, elasticity flap group is in encapsulated situation under no exogenic action, and thin section of thick bamboo portion can insert the central cavity and the second mouth of a river intercommunication that make the water injection section of thick bamboo of elasticity flap group.

Further, a concave pit for indicating an insertion position is arranged in the center of the elastic valve group.

Further, the lower part of one-way rubber buffer is provided with the second elasticity flap that the appearance is flat mouth shape, the central authorities of second elasticity flap are provided with the centre joint, the seam wall that second elasticity flap was used as the centre joint under no external force pastes tightly each other, and thin section of thick bamboo portion can insert the cavity and the second water filling opening intercommunication that make a water injection section of thick bamboo in the centre joint.

Furthermore, two ends of the central seam do not exceed the periphery of the second elastic flap, namely, the lower end of the second elastic flap is not divided into two parts which are independent of each other.

Furthermore, the first elastic valve and the second elastic valve are in smooth transition connection through a middle barrel part; elasticity valve group, well section of thick bamboo portion, the inner wall of second elasticity valve surround into a hollow chamber, hollow chamber is used for providing the deformation space and reducing the frictional resistance that thin section of thick bamboo portion received when inserting one-way rubber buffer for first elasticity valve.

Further, the external diameter of one-way rubber buffer is greater than the internal diameter of second mouth of a river to one-way rubber buffer's outer edge is outside the second mouth of a river, when thin section of thick bamboo portion inserts elasticity flap group central authorities, the lower surface of a water injection section of thick bamboo can support and lean on one-way rubber buffer's upper surface to be in vertical state during the water injection of a water injection section of thick bamboo, prevent to cause first elasticity flap not to closely take place to leak because thin section of thick bamboo portion is crooked with the surface laminating of thin section of thick bamboo portion.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses when replenishing the clear water in the vector section of thick bamboo, use water injection mechanism quantitative absorption clear water, it can to squeeze into the graduated flask with clear water from one-way rubber buffer again, can use water injection mechanism reciprocal carry out a plurality of moisturizing, can realize quick moisturizing under the prerequisite of not invering burette, simplified the moisturizing flow, also need not be interrupted survey work in the moisturizing in the vector pipe, improved survey efficiency.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Figure 2 is the utility model discloses a cross-sectional view of one-way rubber buffer.

In the figure, a sealing cover 1, a burette 2, a spring clamp 3, an exhaust pipe 4, a second air inlet 5, a base 6, a water replenishing pipe 7, a one-way valve 8, a one-way rubber plug 9, a hollow cavity 91, a middle cylinder part 92, a second elastic valve 93, a middle seam 94, a pit 95, a first elastic valve 96, a thin cylinder part 10, an elastic plug body 11, a water injection cylinder 12, an injection push rod 13 and a water outlet 14.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1 and 2, the direct measuring device for gas content comprises a base 6, a measuring tube 2 arranged on the base 6 and a water injection mechanism; the side wall of the measuring tube 2 is provided with scales, the lower end of the measuring tube 2 is provided with a first water replenishing port, a first air inlet and a water outlet 14, a base 6 is provided with a second water replenishing port connected with the first water replenishing port, a one-way rubber plug 9 is arranged in the second water replenishing port, the base 6 is provided with a second air inlet 5 communicated with the first air inlet, the second air inlet 5 is connected with a coal sample tank through an exhaust pipe 4, and the exhaust pipe 4 is provided with a spring clamp 3;

the water injection mechanism comprises a water injection barrel 12 with a hollow cavity and an injection push rod 13 inserted in the water injection barrel 12, scales are arranged on the water injection barrel 12, a thin barrel part 10 communicated with the hollow cavity extends downwards from the lower end of the water injection barrel 12, and an elastic plug body 11 connected with the inner wall of the water injection barrel 12 in a sliding manner is arranged at the lower end of the injection push rod 13; the thin cylinder part 10 can be inserted into the one-way rubber plug 9 and is sealed and injected with water into the vector tube 2; the structure of the water injection mechanism is similar to that of a medical injector.

Further, as shown in fig. 1, the first water replenishing port is communicated with the second water replenishing port through a water replenishing pipe 7, a check valve 8 is arranged on the water replenishing pipe 7, the water replenishing pipe 7 is arranged in the base 6 or outside the base 6, and the check valve 8 in the prior art can be used, for example, the check valve 8 in a water dispenser fitting can be used.

Further, as shown in fig. 1, a water filling port is provided at the top end of the measuring tube 2, a sealing cover 1 is provided on the water filling port, and when the measuring tube 2 is used for measurement for the first time, water is filled into the vector tube 2 by using the water filling port rapidly.

Further, as shown in fig. 1, a stopper ring for preventing the elastic plug 11 from coming off the water injection tube 12 is provided at an upper portion of the water injection tube 12, external threads are provided at a periphery of the stopper ring, internal threads engaged with the external threads are provided at a top end of an inner wall of the water injection tube 12, and the stopper ring is in threaded connection with the water injection tube 12.

Further, as shown in fig. 1 and 2, an elastic valve set composed of a plurality of first elastic valves 96 is disposed at the center of the upper portion of the one-way rubber plug 9, the elastic valve set is in a closed state without external force, and the thin cylinder portion 10 can be inserted into the center of the elastic valve set to communicate the hollow cavity of the water injection cylinder 12 with the second water replenishing port.

Further, as shown in fig. 1 and 2, a recess 95 for indicating the insertion position of the thin tube 10 is provided at the center of the elastic flap group.

Further, as shown in fig. 1 and 2, a second elastic flap 93 having a flat mouth shape is disposed at a lower portion of the one-way rubber stopper 9, a central slit 94 is disposed at a center of the second elastic flap 93, walls of the lower central slit 94 of the second elastic flap 93 are adhered to each other without an external force, and the thin tube portion 10 can be inserted into the central slit 94 to communicate a hollow cavity of the water injection tube 12 with the second water replenishing port.

Further, as shown in fig. l and 2, both ends of the central slit 94 do not exceed the outer circumference of the second elastic flap 93, that is, the lower end of the second elastic flap 93 is not divided into two parts independent of each other.

Further, as shown in fig. 1 and 2, the first elastic flap 96 and the second elastic flap 93 are connected in a smooth transition manner through the middle cylinder part 92; the inner walls of the elastic valve set, the middle barrel part 92 and the second elastic valve 93 are encircled to form a hollow cavity 91, and the hollow cavity 91 is used for providing a deformation space for the first elastic valve 96 and reducing the frictional resistance received when the thin barrel part 10 is inserted into the one-way rubber plug 9.

Further, as shown in fig. 1, the outer diameter of the one-way rubber plug 9 is larger than the inner diameter of the second water replenishing opening, so that the outer edge of the one-way rubber plug 9 is outside the second water replenishing opening, and when the thin tube part 10 is inserted into the center of the elastic valve group, the lower surface of the water injection tube 12 can abut against the upper surface of the one-way rubber plug 9, so that the water injection tube 12 is in a vertical state during water injection, and water leakage due to the fact that the first elastic valve 96 is not tightly attached to the outer surface of the thin tube part 10 due to the fact that the thin tube part 10 is inclined is prevented.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The direct measuring device of gas content, its characterized in that: comprises a base, a measuring pipe arranged on the base and a water injection mechanism; the side wall of the measuring tube is provided with scales, the lower end of the measuring tube is provided with a first water replenishing port, a first air inlet and a water outlet, a base is provided with a second water replenishing port connected with the first water replenishing port, a one-way rubber plug is arranged in the second water replenishing port, the base is provided with a second air inlet communicated with the first air inlet, the second air inlet is connected with a coal sample tank through an exhaust pipe, and the exhaust pipe is provided with a spring clamp;

2. The direct measurement device of gas content according to claim 1, wherein: the first water replenishing port is communicated with the second water replenishing port through a water replenishing pipe, and a one-way valve is arranged on the water replenishing pipe.

3. The direct measurement device of gas content according to claim 1, wherein: the top end of the measuring tube is provided with a water filling port, and a sealing cover is arranged on the water filling port.

4. The direct measurement device of gas content according to claim 1, wherein: the upper part of the water injection barrel is provided with a limiting ring for preventing the elastic plug body from being separated from the water injection barrel.

5. The direct measurement device of gas content according to claim 1, wherein: the upper portion center of one-way rubber buffer is provided with the elasticity flap group of constituteing by a plurality of first elasticity flaps, elasticity flap group is in encapsulated situation under no exogenic action, and thin section of thick bamboo portion can insert the central cavity and the second mouth of a river intercommunication that make the water injection section of thick bamboo of elasticity flap group.

6. The direct measurement device of gas content according to claim 5, wherein: and a concave pit for indicating an insertion position is arranged in the center of the elastic valve group.

7. The direct measurement device of gas content according to claim 5, wherein: the lower part of the one-way rubber plug is provided with a second elastic valve with the shape of a flat mouth, the center of the second elastic valve is provided with a middle seam, the walls of the second elastic valve serving as the lower middle seam are tightly attached to each other without external force, and the thin cylinder part can be inserted into the middle seam to enable the hollow cavity of the water injection cylinder to be communicated with the second water replenishing port.

8. The direct measurement device of gas content according to claim 7, wherein: the first elastic valve and the second elastic valve are in smooth transition connection through the middle barrel part; elasticity valve group, well section of thick bamboo portion, the inner wall of second elasticity valve surround into a hollow chamber, hollow chamber is used for providing the deformation space and reducing the frictional resistance that thin section of thick bamboo portion received when inserting one-way rubber buffer for first elasticity valve.