CN212134683U

CN212134683U - Gas diffusion initial velocity tester

Info

Publication number: CN212134683U
Application number: CN202020527423.XU
Authority: CN
Inventors: 王付龙; 王中强; 成灰灰
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: 2020-12-11
Anticipated expiration: 2030-04-10

Abstract

The utility model discloses a gas diffusion initial velocity determinator, which comprises a box body, wherein a plurality of sample tanks are arranged in the box body, each sample tank is connected with an air duct, a first sleeve is arranged on the box body, one side of the first sleeve, which is far away from the box body, is provided with a second sleeve fixedly connected with the first sleeve, one ends of the second sleeve and the first sleeve, which are opposite to each other, are provided with gaps, and the interiors of the second sleeve and the first sleeve are provided with sealing components, the air ducts are connected with the sealing components, one side of the first sleeve is provided with a conversion component for separating two sealing components, and one end of the second sleeve, which is far away from the box body; the utility model discloses the installation effectiveness is high-efficient, simple structure, and convenient to use has reduced the error rate of pipe connection.

Description

Gas diffusion initial velocity tester

Technical Field

The utility model belongs to the technical field of the gas survey, a gas diffuses initial velocity apparatus is related to.

Background

The gas diffusion speed of coal is a physical quantity representing a gas diffusion rule of a medium adsorbing gas, and is widely applied to coal seam outburst risk identification, coal seam outburst risk prediction and outburst area division. In the current regulations for preventing coal and gas outburst, the initial gas diffusion speed delta P of coal is one of the main indexes for classifying outburst dangerousness.

The connecting pipeline of the existing gas diffusion initial speed measuring device adopts threaded connection, so that the connecting efficiency is low and the operation is complex; and can be provided with a plurality of sample jars on present survey device and carry out simultaneous measurement, later contrast measuring data again, guarantee the reliability of survey, but a plurality of sample jars entrance point need connect the intake pipe respectively, and the installation effectiveness is low, and it is very inconvenient to use.

SUMMERY OF THE UTILITY MODEL

To the above problem, the utility model provides a gas diffuses initial velocity apparatus, fine solution the inconvenient and inefficiency problem of prior art sample jar access connection.

In order to realize the purpose, the utility model discloses a technical scheme as follows: the utility model provides a gas diffusion primary velocity apparatus, includes the box, is provided with a plurality of sample tanks in the box, all is connected with the air duct on each sample tank, is provided with first sleeve on the box, and one side that the box was kept away from to first sleeve is provided with the second sleeve with first sleeve fixed connection, and gapped and inside all is provided with seal assembly of second sleeve and first sleeve one end in opposite directions, the air duct all is connected with seal assembly, and first sleeve one side is provided with two seal assembly's of separation conversion subassembly, and the one end that the box was kept away from to the second sleeve is provided with two-way quick-operation joint of proclaiming oneself.

Further, seal assembly includes the bottom plate, can reciprocating sliding's piston and set up the first spring between piston and bottom plate in first sleeve or second sleeve, be provided with first through-hole and the second through-hole corresponding with air duct quantity on bottom plate and the piston respectively, the one end that first through-hole deviates from the piston is connected with the air duct, first through-hole and second through-hole one end in opposite directions are connected with first straight tube and the second straight tube that cup joints each other respectively, the terminal surface that the piston deviates from the bottom plate is provided with makes the second through-hole around the first sealing washer in inside.

Further, the conversion subassembly includes the connecting axle fixed with the box, and the one end that the box was kept away from to the connecting axle is provided with the pivoted axle sleeve, and the edge of axle sleeve has the division board the same with air duct quantity and can insert between two pistons along its axis circumference equipartition, and the third through-hole has all been seted up to every division board, and the quantity of third through-hole increases one by one and is the same with the position distribution of second through-hole.

Furthermore, the edges of the opposite ends of the two pistons are provided with round corners.

Furthermore, a second sealing ring which is sealed with the inner wall of the first sleeve or the second sleeve is arranged on the circumferential surface of the piston.

Further, be provided with on the axle sleeve inner wall along its axis circumference equipartition and with the hemisphere recess that division board quantity is the same, seted up the blind hole on the connecting axle, wear to be equipped with the second spring in the blind hole, the second spring is connected with the steel ball that can insert in the recess towards the one end of axle sleeve.

Compared with the prior art, the utility model discloses following beneficial effect has: the bidirectional self-sealing quick joint on the second sleeve can realize quick connection of the connecting pipeline; moreover, the number of the air ducts which are connected and disconnected can be selected by the conversion assembly, the connection and disconnection of any number of air ducts can be realized, and the air ducts are connected only once; the air guide pipes are arranged in the box body in advance and are arranged in order according to the position of the first through hole on the bottom plate; the utility model discloses the installation effectiveness is high-efficient, simple structure, and convenient to use has reduced the error rate of pipe connection.

Drawings

Fig. 1 is a front view of the present invention;

FIG. 2 is a sectional view taken along line A-A of FIG. 1;

FIG. 3 is a schematic view of the distribution of the divider plates;

FIG. 4 is an enlarged view of section I of FIG. 2;

fig. 5 is an enlarged view of section ii of fig. 2.

In the figure: the device comprises a box body (1), an air guide pipe (2), a first sleeve (3), a second sleeve (4), a sealing assembly (5), a conversion assembly (6), a two-way self-sealing quick joint (7), a second sealing ring (8), a groove (9), a blind hole (10), a second spring (11), a steel ball (12), a bottom plate (51), a piston (52), a first spring (53), a first through hole (54), a second through hole (55), a first straight pipe (56), a second straight pipe (57), a first sealing ring (58), a connecting shaft (61), a shaft sleeve (62), a partition plate (63) and a third through hole (64).

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. 1-5, gas diffusion primary velocity apparatus, including box 1, be provided with a plurality of sample tanks in the box 1, all be connected with air duct 2 on each sample tank, be provided with first sleeve 3 on the box 1, one side that box 1 was kept away from to first sleeve 3 is provided with second sleeve 4 with 3 fixed connection of first sleeve, the gapped and inside all is provided with seal assembly 5 of

second sleeve

4 and 3 one end in opposite directions of first sleeve, air duct 2 all is connected with seal assembly 5, first sleeve 3 one side is provided with the conversion components 6 of two seal assembly 5 of separation, the one end that box 1 was kept away from to second sleeve 4 is provided with two-way proclaim oneself quick-operation joint 7.

In this embodiment, the flow meter, the regulating valve, the pressure gauge and the filtering device are arranged in the box body 1, and these components can be directly obtained from the prior art to complete the measurement of the initial speed of the gas; moreover, the body of the box body 1 used by the utility model can be directly selected from the prior art in the technical field; the gas-guide tube 2 is a plastic tube or a metal tube; the female end of the bidirectional self-sealing quick joint 7 is connected to the second sleeve 4, and the secondary end of the bidirectional self-sealing quick joint is connected to a pipeline to be tested.

Specifically, be provided with the link between first sleeve 3 and the second sleeve 4, the link welds its both ends respectively on first sleeve 3 and second sleeve 4 through the welded mode.

In this embodiment, the sealing assembly 5 includes a bottom plate 51, a piston 52 capable of sliding in a reciprocating manner in the first sleeve 3 or the second sleeve 4, and a first spring 53 disposed between the piston 52 and the bottom plate 51, the bottom plate 51 and the piston 52 are respectively provided with a first through hole 54 and a second through hole 55 corresponding to the number of the gas tubes 2, one end of the first through hole 54 away from the piston 52 is connected with the gas tubes 2 in a sealing manner, one end of the first through hole 54 opposite to the second through hole 55 is respectively connected with a first straight tube 56 and a second straight tube 57 which are sleeved with each other, and one end surface of the piston 52 away from the bottom plate 51 is provided with a first sealing ring 58 which enables the second through hole 55 to surround inside; when the gas detector is installed, the bottom plate 51 is welded in the first sleeve 3 or the second sleeve 4, the pistons 52 in the two sealing assemblies 5 respectively protrude out of the ends of the first sleeve 3 and the second sleeve 4, the two first sealing rings 58 on the pistons 52 are in contact, the two first sealing rings 58 are mutually pressed under the elastic force of the first spring 53, the sealing performance between the two pistons 52 is ensured, gas entering from the second sleeve 4 cannot leak, and the gas enters the gas guide tube 2 through the two sealing assemblies 5 along the first through hole 54, the second through hole 55, the first straight tube 56 and the second straight tube 57 and enters the sample tank along the gas guide tube 2.

Preferably, a hose can be used between the first straight pipe 56 and the second straight pipe 57 instead, a sealing ring can be arranged between the first straight pipe 56 and the second straight pipe 57, and the first straight pipe 56 and the second straight pipe 57 can slide and ensure the sealing performance between the first straight pipe 56 and the second straight pipe 57, so that the test gas cannot leak from between the first straight pipe 56 and the second straight pipe 57; the piston 52 may be made of teflon, and a seal may be formed between the two pistons 52 and the partition plate 63.

In this embodiment, the conversion assembly 6 includes a connection shaft 61 fixed to the box body 1, one end of the connection shaft 61 away from the box body 1 is provided with a rotating shaft sleeve 62, the edge of the shaft sleeve 62 is uniformly provided with partition plates 63 along the circumference of the axis thereof, the number of the partition plates 63 is the same as that of the gas tubes 2, and the partition plates can be inserted between the two pistons 52, each partition plate 63 is provided with a third through hole 64, and the number of the third through holes 64 on each partition plate 63 is increased one by one and corresponds to the position distribution of the second through holes 55; specifically, the number of the third through holes 64 is set from 1, and the number of the third through holes 64 is increased on the partition plate 63 one by one in the clockwise direction or the counterclockwise direction until the number of the third through holes 64 on the last partition plate 63 is the same as that of the second through holes 55 on the pistons 52, when the partition plate 63 rotates between the two pistons 52, the positions of the third through holes 64 correspond to those of the second through holes 55, and the pistons 52 can be switched on the second through holes 55 on the two pistons 52 from 1 to a plurality under the control of the partition plate 63, so that the partition plate 63 can control the number of the on-off of the air ducts 2, realize the on-off of any number of air ducts 2, ensure the simultaneous measurement of sample tanks with different numbers, and is convenient to use.

In this embodiment, the edges of the opposite ends of the two pistons 52 are provided with rounded corners, so that the partition plate 63 can be conveniently inserted between the two pistons.

In this embodiment, the periphery of piston 52 is provided with the sealed second sealing washer 8 with the inner wall of first sleeve 3 or second sleeve 4, further guarantees the leakproofness between first sleeve 3 or second sleeve 4 and the piston 52, prevents that gas from leaking from first sleeve 3 or second sleeve 4, has improved the utility model discloses measuring accuracy.

In this embodiment, be provided with on the axle sleeve 62 inner wall along its axis circumference equipartition and with the hemisphere recess 9 that division board 63 quantity is the same, seted up blind hole 10 on the connecting axle 61, wear to be equipped with second spring 11 in the blind hole 10, second spring 11 is connected with the steel ball 12 that can insert in the recess 9 towards the one end of axle sleeve 62. When the partition plate 63 is inserted between the two pistons 52, the steel ball 12 is also inserted into the groove 9, a pause phenomenon occurs when the partition plate 63 is switched every time, which indicates that the partition plate 63 rotates in place, and the position of the partition plate 63 is not easy to change under the condition of no external force in the use process, so that the use reliability of the partition plate 63 is improved.

When the utility model is used, the sub-end of the bidirectional self-sealing quick coupling 7 is directly inserted into the upper female end of the second sleeve 4, then the shaft sleeve 62 is rotated to select the partition plate 63, the number of the air ducts 2 is controlled, and the number of the sample tanks working simultaneously is selected, thereby avoiding the phenomenon of complex arrangement caused by connecting a plurality of air ducts 2 on the box body 1, and the plurality of air ducts 2 only need to be connected once; the utility model discloses the installation effectiveness is high-efficient, simple structure, and convenient to use has reduced the error rate of pipe connection.

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 utility model provides a gas diffusion initial velocity apparatus, includes the box, is provided with a plurality of sample jars in the box, all is connected with air duct, its characterized in that on each sample jar: be provided with first sleeve on the box, one side that the box was kept away from to first sleeve is provided with the second sleeve with first sleeve fixed connection, and gapped and inside all is provided with seal assembly second sleeve and first sleeve one end in opposite directions, the air duct all is connected with seal assembly, and first sleeve one side is provided with the conversion components of two seal assembly of separation, and the one end that the box was kept away from to the second sleeve is provided with two-way quick-operation joint of proclaiming oneself.

2. The gas diffusion initial velocity measuring instrument according to claim 1, characterized in that: the sealing assembly comprises a bottom plate, a piston capable of sliding in a reciprocating mode in the first sleeve or the second sleeve and a first spring arranged between the piston and the bottom plate, a first through hole and a second through hole corresponding to the number of the air guide tubes are formed in the bottom plate and the piston respectively, one end, deviating from the piston, of the first through hole is connected with the air guide tubes, one end, in opposite directions, of the first through hole and the second through hole is connected with a first straight tube and a second straight tube which are connected in a sleeved mode, and one end face, deviating from the bottom plate, of the piston is provided with a first sealing ring enabling the second through hole to surround.

3. The gas diffusion initial velocity measuring instrument according to claim 2, characterized in that: the conversion assembly comprises a connecting shaft fixed with the box body, a rotating shaft sleeve is arranged at one end, away from the box body, of the connecting shaft, partition plates which are the same in number with the air guide pipes and can be inserted between the two pistons are evenly distributed on the edge of the shaft sleeve along the circumference of the axis of the shaft sleeve, a third through hole is formed in each partition plate, the number of the third through holes is increased one by one, and the third through holes are distributed the same as the second through holes in position.

4. The gas diffusion initial velocity measuring instrument according to claim 3, characterized in that: and the edges of the opposite ends of the two pistons are provided with round corners.

5. The gas diffusion initial velocity measuring instrument according to claim 3, characterized in that: and a second sealing ring which is sealed with the inner wall of the first sleeve or the second sleeve is arranged on the circumferential surface of the piston.

6. The gas diffusion initial velocity measuring instrument according to claim 3, characterized in that: be provided with on the axle sleeve inner wall along its axis circumference equipartition and with the hemisphere recess that division board quantity is the same, seted up the blind hole on the connecting axle, wear to be equipped with the second spring in the blind hole, the one end of second spring towards the axle sleeve is connected with the steel ball that can insert in the recess.