CN215574057U

CN215574057U - Gas taking device

Info

Publication number: CN215574057U
Application number: CN202120566101.0U
Authority: CN
Inventors: 温太阳; 钟凯; 杨彬; 崔园园; 王卫兵; 李兴全; 王仲民; 王喜军
Original assignee: Shougang Group Co Ltd
Current assignee: Shougang Group Co Ltd
Priority date: 2021-03-19
Filing date: 2021-03-19
Publication date: 2022-01-18
Anticipated expiration: 2031-03-19

Abstract

The utility model relates to a gas taking device, and belongs to the technical field of gas collection. This high temperature gas taking device includes the gasbag, the hose, the gas collecting channel, extension rod and hose clamping device, and wherein, the end of getting of extension rod is all fixed to gasbag and gas collecting channel, hose intercommunication gasbag and gas collecting channel, and hose clamping device includes tube clamping mechanism and control pull rod, and tube clamping mechanism centre gripping hose pipe shaft, the one end and the tube clamping mechanism of control pull rod are connected and drive tube clamping mechanism with the hose clamp cut off or open, and the other end of control pull rod is located the handheld end of extension rod. According to the utility model, the air bag and the air collecting cover are placed in a high-temperature environment through the air taking end of the extension rod, an operator stands outside the high-temperature environment by holding the holding end of the extension rod, and then presses or opens the hose through the hose clamping device to control the air bag to take air or stop taking air, so that potential safety hazards caused by the fact that the operator takes air in the high-temperature environment are avoided.

Description

Gas taking device

Technical Field

The utility model belongs to the field of gas collecting devices, and particularly relates to a gas taking device.

Background

In the production process of the ferrous metallurgy industry, a great deal of gas is generated in many links, the gas is mostly high-temperature and toxic gas, such as a blast furnace slag flushing process, a great deal of water vapor, carbon monoxide, carbon dioxide, hydrogen sulfide and hydrogen can be generated at the moment of contacting slag and water, and the temperature of the gas can reach 200-300 ℃. It is desirable to collect and analyze these gases for environmental purposes, research, and the like. The conventional sampling method is that a sampler presses gas at a sampling point into a bladder by using a balloon or an air pump and other devices, and after the bladder is full, a clamp and other tools are used for sealing a ball opening. However, this operation requires the operator to be in a sampling environment, and a gas mask operation can be carried out in the sampling environment for toxic gases, but in the sampling environment for high-temperature gases, the operator can hardly operate due to safety considerations, so that there is a limitation.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides a gas taking device to solve the technical problem of potential safety hazard when an operator is in a high temperature sampling environment in the prior art.

The utility model is realized by the following technical scheme:

a gas extraction device, comprising:

the air bag is used for containing high-temperature gas;

the gas collecting hood is used for collecting high-temperature gas;

the two ends of the hose are respectively communicated with the air bag and the gas collecting hood;

the extension rod is provided with a gas taking end and a handheld end, and the air bag and the gas collecting hood are fixed at the gas taking end; and the number of the first and second groups,

the hose clamping device comprises a hose clamping mechanism and a control pull rod, the hose clamping mechanism is arranged at the gas taking end, one end of the control pull rod is connected with the hose clamping mechanism and drives the hose clamping mechanism to clamp and separate or open the hose, and the other end of the control pull rod is located at the handheld end.

Optionally, in order to better implement the present invention, the tube clamping mechanism includes a fixed member and a movable member, the fixed member is fixedly connected to the gas taking end of the extension rod, the movable member is connected to the control pull rod, the hose body is fixed between the movable member and the fixed member, and the control pull rod pulls the movable member to move toward the fixed member or move away from the fixed member.

Optionally, in order to better implement the present invention, a connecting plate is fixedly connected to the fixing member or the extension rod, the moving member is connected to the connecting plate through a first hinge shaft in a swinging manner and forms a first end and a second end which rotate relatively, the first end is hinged to the control pull rod, and a distance between the second end and the first hinge shaft is greater than or equal to a distance between the first hinge shaft and the second plate.

Optionally, in order to better implement the present invention, the pipe clamping mechanism further includes an elastic element, and the elastic element connects the fixed element and the movable element and drives the second end of the movable element to move toward the fixed element.

Optionally, in order to better implement the present invention, the number of the connecting plates is two, the two connecting plates are arranged at an interval and form a limiting groove for limiting the swinging of the hose, and the movable member is located in the limiting groove and swings.

Optionally, in order to better implement the present invention, the fixing member is provided with an inlet pipe hole and an outlet pipe hole, two ends of the hose respectively pass through the inlet pipe hole and the outlet pipe hole, and a pipe body of the hose is fixed to the fixing member.

Optionally, in order to better implement the present invention, the fixing member is a U-shaped plate, and includes a bottom plate and two vertical plates fixed on the bottom plate, the two vertical plates being arranged at an interval, and the pipe inlet hole and the pipe outlet hole being respectively arranged on the two vertical plates.

Optionally, in order to better implement the present invention, the gas collecting channel is fixedly connected to the bottom plate of the fixing member through a connecting member, and the airbag is fixedly connected to the vertical plate of the fixing member through a pipe hoop.

Optionally, in order to better implement the present invention, a sliding hole communicating the gas taking end and the handheld end is formed in the extension rod, the control pull rod is slidably connected to the sliding hole, and an end of the control pull rod extends out of the sliding hole.

Optionally, in order to better implement the present invention, one end of the control pull rod, which is located at the handheld end of the extension rod, is connected with a handle for pulling the control pull rod, and the handle is located outside the extension rod.

Compared with the prior art, the utility model has the following beneficial effects:

according to the utility model, the air bag and the air collecting cover are placed in a high-temperature environment through the air taking end of the extension rod, an operator stands outside the high-temperature environment by holding the holding end of the extension rod, and then presses or opens the hose through the hose clamping device to control the air bag to take air or stop taking air, so that potential safety hazards caused by the fact that the operator takes air in the high-temperature environment are avoided.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view of the internal structure of a high-temperature gas-taking apparatus in example 1;

FIG. 2 is a schematic view of the hose clamp of FIG. 1;

FIG. 3 is a top view of FIG. 2;

fig. 4 is a schematic structural view of the hose clamp device in embodiment 2.

In the figure: 1-air bag; 11-a first connection pipe; 2-a hose; 3-gas collecting channel; 31-a second connecting tube; 32-a connector; 4-an extension rod; 5-a fixing piece; 51-a connecting plate; 52-a base plate; 53-vertical plate; 6-a movable part; 61-a first articulated shaft; 7-control the pull rod; 71-a second articulated shaft; 72-a handle; 8-elastic member.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the utility model, and not restrictive of the full scope of the utility model. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.

As shown in fig. 3, the air intake device comprises an air bag 1, a hose 2, a gas collecting hood 3, an extension rod 4 and a hose clamping device, wherein,

as shown in fig. 1 and 2, the airbag 1 is made of high temperature resistant silicone, and the airbag 1 has a first connection tube 11 for gas to enter and exit. The shape of the gas-collecting hood 3 is conical, and the conical tip of the gas-collecting hood 3 is provided with a second connecting pipe 31 which is communicated with two sides of the gas-collecting hood 3. The hose 2 is a silica gel hose made of high temperature resistant silica gel. The two ends of the hose 2 are respectively fixedly sleeved with the first connecting pipe 11 and the second connecting pipe 31, so that high-temperature gas is collected in the gas-collecting hood 3 and then enters the airbag 1 through the hose 2 for storage.

It should be noted that, in the present embodiment, the volume of the airbag 1 is 1 liter, but of course, the airbag 1 may be set to other volume specifications according to the actual collecting requirement, the gas collecting hood 3 is made of an aluminum alloy plate to reduce the weight of the gas collecting hood 3, and the diameter of the bottom circle of the gas collecting hood 3 is 50cm and the height is 25 cm. The sum of the weights of the air bag 1 and the gas-collecting hood 3 is less than or equal to 1200 g. The hose 2 is 30cm in length. The tube lengths of the first connecting tube 11 and the second connecting tube 31 are both 5cm, the tube diameters are 2cm, and the first connecting tube 11 and the second connecting tube 31 are both glass tubes.

As shown in fig. 1, the extension rod 4 is a straight long rod, the two ends of the extension rod 4 are respectively a gas taking end and a handheld end, a straight sliding hole is formed in the extension rod 4 and is communicated with the gas taking end of the extension rod 4 and the handheld end of the extension rod 4, and the sliding hole and the extension rod 4 are coaxially arranged. The length of extension rod 4 is according to the demand of using and corresponding setting, and the one end that satisfies extension rod 4 is located high temperature environment, and the other end of extension rod 4 is located outside the high temperature environment can.

As shown in fig. 2, the hose clamping device includes a pipe clamping mechanism and a control rod 7, the control rod 7 is slidably connected to the sliding hole, and both ends of the control rod 7 extend out of the extension rod 4, the pipe clamping mechanism includes a fixing member 5 and a moving member 6, the fixing member 5 is fixedly connected to the gas-taking end of the extension rod 4 by welding, and of course, the fixing member 5 and the gas-taking end 4 can also be fixedly connected by bolting or bonding. In this embodiment, the control rod 7 is made of aluminum alloy and has a length of 3 m. The length of the control pull rod 7 can be correspondingly increased or shortened according to the actual use requirement. In this embodiment, one end of the control rod 7, which is located at the handheld end of the extension rod 4, is connected to a handle 72 for pulling the control rod 7, the handle 72 is of a rod-shaped structure, and the handle 72 is located outside the extension rod 4, and the handle 72 can block the end of the extension rod 4 besides facilitating pulling the control rod 7, so as to prevent the end of the control rod 7 from sliding into a sliding hole in the extension rod 4.

As shown in fig. 2, the fixing member 5 is provided with an air inlet and an air outlet, one end of the hose 2 passes through the hole of the air inlet and then is communicated with the airbag 1, and the other end of the hose 2 passes through the hole of the air outlet and then is communicated with the gas collecting hood 3, so that the body of the hose 1 is fixed on the fixing member 5. And, a connecting plate 51 is fixedly arranged on the fixing member 5, the connecting plate 51 is perpendicular to the fixing member 5, a first hinge shaft 71 is arranged on the connecting plate 51, the middle of the movable member 6 is mounted on the first hinge shaft 71 and is rotatably connected with the first hinge shaft 71, so that the movable member 7 forms a first end and a second end which are relatively swung with the first hinge shaft 71, the first end of the movable member 6 is rotatably connected with the control pull rod 7 through the second hinge shaft 71, the movable member 6 can be driven to swing back and forth by pulling the control pull rod 7, and the swinging direction of the movable member 6 around the first hinge shaft 61 is the same as the axial direction of the part of the hose 2 fixed on the fixing member 5. The portion of the hose 2 secured to the stationary member 5 is located directly between the first end of the moveable member 6 and the stationary member 5.

When the second end of the movable piece 6 swings towards the direction close to the fixed piece 5, the tube body of the hose 2 can be flattened and pressed on the fixed piece 5 until the inner cavity of the hose 2 is cut off, so that the hose 2 is sealed; when the second end of the movable member 6 swings towards the direction away from the fixed member 5, the gap between the movable member 6 and the fixed member 5 increases, and the hose 2 is restored to a circular shape from a flattened shape under the action of the elastic force of the hose 2, so that the hose 2 is conducted.

As shown in fig. 2, the fixing member 5 is a U-shaped plate, the U-shaped fixing member 5 includes a bottom plate 52 and two vertical plates 53 fixed on the bottom plate 52 at intervals, the bottom plate 52 and the vertical plates 53 can be bent to form a U-shaped plate through a straight plate, or the U-shaped plate can be formed after the independent bottom plate 52 and the vertical plates 53 are fixedly connected, the pipe inlet hole and the pipe outlet hole are respectively disposed on the two vertical plates 53, one of the vertical plates 53 on the fixing member 5 and the extension rod 4 are fixed as a whole by welding, the connecting plate 51 is fixed on one side of the U-shaped fixing member, and the connecting plate 51 is perpendicular to the vertical plates 53 and the bottom plate 52. The movable element 6 is located in the U-shaped cavity formed by the U-shaped fixed element 5, and the tube body of the hose 2 is laid on the bottom plate 52 of the fixed element 5. The fixing piece 5 is set to be a U-shaped plate, a protection structure can be formed on the moving piece 6, and the moving piece 6 is prevented from being deformed and damaged due to external collision. The bottom plate 1 on the fixing member 5 can be a straight plate or an arc-shaped plate, in this embodiment, the bottom plate of the fixing member is the arc-shaped plate, and the position of the first hinge shaft 61 and the position of the center of the arc-shaped bottom plate 51 have a certain interval, so that in the swinging process of the moving member 6, the second end of the moving member 6 can swing to the position contacting with the fixing member 5 all the time.

It should be noted that the distance between the second end of the mobile element 6 and the first hinge axis 61 is greater than or equal to the distance between the first hinge axis 61 and the bottom plate 52 of the second fixed element 5, so that the second end of the mobile element 5 can crush the hose on the bottom plate 52 during the swinging movement of the mobile element 5. The gas collecting hood 3 is fixedly connected with the bottom plate 52 of the fixing part 5 through the connecting part 32, the airbag 1 is fixedly connected with the vertical plate 53 of the fixing part 5 through the pipe hoop, and the horizontal height of the airbag 1 is higher than that of the gas collecting hood 3 so as to collect high-temperature gas.

As shown in fig. 1 and 2, the tube clamping mechanism further includes an elastic member 8, in this embodiment, the elastic member is a spring, and of course, the elastic member 8 may also be an elastic member in other forms such as a spring sheet. Moving part 6 and mounting 5 are connected respectively to the both ends of elastic component 8, or moving part 6 and extension rod 4 are connected respectively to the both ends of elastic component 8, when moving part 6 when not receiving external force (do not stimulate control pull rod 7 promptly), elastic component 8 can hold the second end of moving part 6 under the elastic force effect of self and draw bottom plate 52 to mounting 5 in order to compress tightly the hose, cut off the inside air current passageway of hose, make hose clamping device be in the normal close state, only when needing to collect high-temperature gas, artificial pulling control pull rod 7 just can be opened. In this embodiment, one end of the elastic element 8 is connected to the vertical plate 53 on the fixed element 5, and the other end of the elastic element 8 is connected to the plate body of the movable element 6 near the second end.

As shown in fig. 3, in addition, the number of the connecting plates 51 may be one or two, when there are two connecting plates 51, the two connecting plates 51 are spaced apart and fixed on two sides of the U-shaped fixing member, and the two connecting plates 51 form a groove-shaped structure to limit the tube body of the hose from swinging on the fixing member. The bottom plate 52, the two vertical plates 53 and the two connecting plates 51 together form a box structure with an open top. Certainly, in the in-service use, can also pass through bolt demountable installation apron at 5 top openings of mounting of U type to seal box body structure, avoid the inside hydrops of U type fixed plate.

When the high-temperature gas taking device is used for taking high-temperature gas generated in slag flushing, the operation direction is as follows:

an operator stands outside a high-temperature environment, holds the holding end of the extension rod 4, extends the gas taking end of the extension rod 4 provided with the air bag 1, the gas collecting hood 3, the hose 2 and the hose clamping device into the upper part of the slag flushing ditch, pulls the handle 72 on the control pull rod 7 at a position which is about 50cm away from the upper edge of the ditch body to ensure that the hose 2 is communicated with the air bag 1 and the gas collecting hood 3, and kept for about 30s, when high-temperature gas enters the air bag 1 through the gas-collecting hood 3 and fills the air bag 1, the handle 72 is loosened, the control pull rod 7 is withdrawn, the movable piece 6 crushes the tube body of the hose 2 on the fixed piece 5 to block the gas circulation inside the hose 2, then the gas taking end of the extension rod 4 is taken out from the high-temperature environment, the connection between the first connecting tube 31 of the airbag 1 and the hose 2 is disconnected, and the first connecting tube 31 is blocked by a gas plug to seal the collected gas in the airbag 1. The balloon 1 is then removed and sent to an analysis chamber for analysis.

Example 2:

in this embodiment, as shown in fig. 4, the movable member 6 may also be directly and fixedly connected to the control rod 7, and driven by the control rod 7 to approach or separate from the vertical plate 53 on the fixed plate 5.

The movable member 6 is a hook-shaped member, and the hook-shaped portion of the movable member 6 faces the vertical plate, so that the movable member 6 can crush and fix the hose 2 to the vertical plate 53.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims

1. An air extraction device, comprising:

the air bag is used for containing high-temperature gas;

the gas collecting hood is used for collecting high-temperature gas;

2. A gas extraction device according to claim 1, wherein: the hose clamping mechanism comprises a fixing piece and a moving piece, the fixing piece is fixedly connected with the gas taking end of the extension rod, the moving piece is connected with the control pull rod, the hose body is fixed between the moving piece and the fixing piece, and the control pull rod pulls the moving piece to move towards the fixing piece or back to the fixing piece.

3. A gas extraction device according to claim 2, wherein: the mounting or fixedly connected with connecting plate on the extension rod, the moving part through first articulated shaft wobbling connect in on the connecting plate and form relative pivoted first end and second end, first end with the control link is articulated, the second end with interval between the first articulated shaft is more than or equal to first articulated shaft with interval between the second board.

4. A gas extraction device according to claim 3, wherein: the pipe clamping mechanism further comprises an elastic piece, and the elastic piece is connected with the fixing piece and the moving piece and drives the second end of the moving piece to move towards the fixing piece.

5. A gas extraction device according to claim 3, wherein: the number of the connecting plates is two, the two connecting plates are arranged at intervals and form a limiting groove for limiting the swinging of the hose, and the moving part is positioned in the limiting groove to swing.

6. A gas extraction device according to claim 2, wherein: the fixing piece is provided with a pipe inlet hole and a pipe outlet hole, two ends of the hose respectively penetrate through the pipe inlet hole and the pipe outlet hole, and the pipe body of the hose is fixed on the fixing piece.

7. A gas extraction device according to claim 6, wherein: the fixing piece is a U-shaped plate and comprises a bottom plate and two vertical plates fixed on the bottom plate at intervals, and the pipe inlet hole and the pipe outlet hole are respectively formed in the two vertical plates.

8. The gas extraction device of claim 7, wherein the gas collecting channel is fixedly connected with the bottom plate of the fixing member through a connecting member, and the gas bag is fixedly connected with the vertical plate of the fixing member through a pipe hoop.

9. A gas extraction device according to any one of claims 1 to 8, wherein: the extension rod is provided with a sliding hole communicated with the gas taking end and the handheld end, the control pull rod is connected in the sliding hole in a sliding mode, and the end portion of the control pull rod extends out of the sliding hole.

10. A gas extraction device according to claim 9, wherein: the control pull rod is located the one end of the handheld end of extension rod is connected with the pulling the control pull rod handle, the handle is located outside the extension rod.