CN218969282U - Safety mechanism for improving operation of coal gas inverted blind plate - Google Patents

Abstract

The utility model relates to the technical field of metallurgical gas safety, in particular to a safety mechanism for improving gas inverted blind plate operation, which comprises the following components: an air inlet pipe is fixedly inserted into the lower part of the right end of the buffer shell, and a first blind plate valve is arranged on the air inlet pipe; the right end of the vent pipe is fixedly inserted into the upper part of the left end of the buffer shell, the left side and the right side of the vent pipe are respectively provided with a butterfly valve and a second blind plate valve, and the vent pipe is fixedly connected with a pressure measuring device on the left side of the second blind plate valve; the lower extreme of V type pipe is fixed to be pegged graft there is the fluid-discharge tube, and the upper end of V type pipe is fixed to be pegged graft there is the observation pipe the lower extreme. Through the overall structure of equipment, improved the factor of safety of falling blind plate operation, stopped the occurence of failure that causes because of personnel misoperation, also greatly reduced coal gas operation risk simultaneously to observe the water level position of observation pipe, can know the water level height of injection water in the V type pipe, thereby conveniently know the water seal effect of V type pipe.

Description

Safety mechanism for improving operation of coal gas inverted blind plate

Technical Field

The utility model relates to the technical field of metallurgical gas safety, in particular to a safety mechanism for improving operation of a gas inverted blind plate.

Background

In the converter gas recovery system, a reliable blocking device is arranged between a gas recovery unit and a pipe network, namely: the blind plate valve and the butterfly valve or the blind plate valve and the V-shaped water sealing device are combined, so that the gas can be effectively prevented from entering an overhaul area to cause personnel injury. In daily operation, the operation of falling blind plate has the gas leakage safety risk, probably has personnel misoperation to lead to gas leakage to cause the incident to take place, needs the air supply direction to carry out the cooperation operation with butterfly valve or V type water seal and blind plate valve at the operation of falling blind plate, namely: the butterfly valve is closed first or the V-shaped water seal is filled with water and then the blind plate valve is operated, for example: the butterfly valve is not closed in place or is operated incorrectly by personnel errors, the butterfly valve is not completely closed, the V-shaped water seal is not filled with water, and when the pressure of gas in a pipeline is not effectively diffused, the risk of poisoning accidents caused by large leakage of the gas is faced, so that a safety mechanism for operating the gas reverse blind plate is provided.

Disclosure of Invention

The application provides an improve coal gas and fall blind plate operation safety mechanism to solve current personnel's mistake butterfly valve and fail to close in place or operate the mistake, the butterfly valve is not closed completely, and V type water seal is not full of water, and when the effective diffusion of coal gas pressure in the pipeline is not carried out, then face the problem of the risk that the gas leaked in a large number leads to the poisoning accident to take place.

Or alternatively, the process may be performed,

to solve the above technical problems or at least partially solve the above technical problems, the present application provides an improved gas reverse blind plate operation safety mechanism, including:

the buffer shell is fixedly inserted with an air inlet pipe at the lower part of the right end of the buffer shell, and a first blind plate valve is arranged on the air inlet pipe;

the right end of the vent pipe is fixedly inserted into the upper part of the left end of the buffer shell, the left side and the right side of the vent pipe are respectively provided with a butterfly valve and a second blind plate valve, and the left side of the vent pipe is fixedly connected with a pressure measuring device;

the lower extreme of V type pipe is fixed to be pegged graft there is the fluid-discharge tube, and the upper end of V type pipe is fixed to be pegged graft there is the observation pipe the lower extreme.

Optionally, the observation tube is a transparent tube, and a liquid inlet tube is fixedly inserted in the middle of the upper end of the observation tube.

Optionally, a switch valve is arranged on the liquid discharge pipe.

Optionally, a diffusing pipe is fixedly inserted on the right side of the upper end of the ventilating pipe, and a diffusing valve is arranged on the diffusing pipe.

Optionally, the left end air outlet of the breather pipe is connected with the right side air inlet of the upper end of the V-shaped pipe.

Optionally, a nitrogen purging pipe is fixedly inserted into the left side of the lower end of the air inlet pipe.

The beneficial effects of the utility model are as follows:

through the overall structure of equipment, improved the factor of safety of falling blind plate operation, stopped the occurence of failure because of personnel misoperation causes, also greatly reduced coal gas operation risk simultaneously to observe the pipe can be after the inside injection water of V type pipe, according to the water level position of observing the pipe, can know the water level height of injection water in the V type pipe, thereby conveniently know the water seal effect of V type pipe.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is an overall structural diagram of an embodiment of the present utility model.

Fig. 2 is an enlarged view of fig. 1 at a in accordance with an embodiment of the present utility model.

The marks in the figure: 1. the device comprises a buffer shell, an air inlet pipe, a first blind plate valve, a vent pipe, a vent valve, a second blind plate valve, a pressure measuring device, a butterfly valve, a 10V-shaped pipe, a liquid discharge pipe, a liquid observation pipe and a liquid inlet pipe.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that all directional indications such as up, down, left, right, front, and rear … … in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture such as that shown in the drawings, and if the particular posture is changed, the directional indication is changed accordingly.

In the present utility model, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" as it appears throughout includes three parallel schemes, for example "A and/or B", including the A scheme, or the B scheme, or the scheme where A and B are satisfied simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

In the prior art, the operation of the inverted blind plate has the safety risk of gas leakage in daily operation, and the safety accident caused by gas leakage possibly occurs due to personnel misoperation, and the air source direction is required to be matched with the blind plate valve by using a butterfly valve or a V-shaped water seal in the operation process of the inverted blind plate, namely, the butterfly valve or the V-shaped water seal is closed firstly, and then the blind plate valve is operated.

In order to solve the problems, the utility model provides a safety mechanism for improving the operation of a gas reverse blind plate, which is used for solving the problems that in the prior art, a butterfly valve is not closed in place or is operated by mistake by personnel, the butterfly valve is not closed completely, a V-shaped water seal is not filled with water, and when the gas pressure in a pipeline is not effectively diffused, a great deal of gas leakage is faced to the risk of poisoning accidents.

As shown in fig. 1-2, the present embodiment provides a safety mechanism for improving the operation of a gas reverse blind plate, comprising:

the buffer shell 1 is fixedly inserted into an air inlet pipe 2 at the lower part of the right end of the buffer shell 1, and a first blind plate valve 3 is arranged on the air inlet pipe 2;

the right end of the vent pipe 4 is fixedly inserted into the upper part of the left end of the buffer shell 1, a butterfly valve 9 and a second blind plate valve 7 are respectively arranged on the left side and the right side of the vent pipe 4, and the vent pipe 4 is fixedly connected with a pressure measuring device 8 on the left side of the second blind plate valve 7;

the V-shaped pipe 10, the lower extreme of V-shaped pipe 10 is fixed to be pegged graft and is had fluid-discharge tube 11, and the upper end lower extreme of V-shaped pipe 10 is fixed to be pegged graft and is had observation tube 12.

Specifically: the gas inlet pipe 2 is the inlet of the gas;

the first blind plate valve 3 adopts the existing blind plate valve in the market;

the vent pipe 4 is a transfer channel for gas out of the buffer shell 1;

the butterfly valve 9 and the second blind plate valve 7 are all valves existing in the market;

after water is injected into the V-shaped pipe 10, the effect of water seal can be achieved.

After the switching valve on the drain pipe 11 is opened, the liquid in the V-pipe 10 can be discharged, and the water sealing effect of the V-pipe 10 can be released.

In the present embodiment, as shown in fig. 1 and 2: the observation tube 12 is a transparent tube, and a liquid inlet tube 13 is fixedly inserted in the middle of the upper end of the observation tube 12.

Specifically: after the water is injected into the V-shaped pipe 10, the water level of the water injected into the V-shaped pipe 10 can be known according to the water level position of the V-shaped pipe 12 by the observation pipe 12, so that the water sealing effect of the V-shaped pipe 10 is known.

In this embodiment, as shown in fig. 1: the liquid discharge pipe 11 is provided with a switch valve.

Specifically: when the switching valve on the liquid discharge pipe 11 is in an open state, the liquid in the V-shaped pipe 10 can be discharged, so that the water sealing effect of the V-shaped pipe 10 is released, and when water sealing is needed, the switching valve on the liquid discharge pipe 11 is closed, an external liquid injection device is connected through the liquid inlet pipe 13, and the liquid can be injected into the observation pipe 12 and the V-shaped pipe 10.

In this embodiment, as shown in fig. 1: the right side of the upper end of the vent pipe 4 is fixedly inserted with a diffusing pipe 5, and the diffusing pipe 5 is provided with a diffusing valve 6.

Specifically: the diffusing pipe 5 can be opened by opening the diffusing valve 6 on the diffusing pipe 5, and the butterfly valve 9 needs to be opened before opening.

In this embodiment, as shown in fig. 1: the left end air outlet of the breather pipe 4 is connected with the right side air inlet of the upper end of the V-shaped pipe 10.

Specifically: the vent pipe 4 is communicated with the V-shaped pipe 10.

In this embodiment, as shown in fig. 1: the left side of the lower end of the air inlet pipe 2 is fixedly inserted with a nitrogen purging pipe.

Specifically: the nitrogen purge pipe is provided to introduce nitrogen into the intake pipe 2.

When the device is used, the operation sequence of the reverse blind plate is defined, namely, the butterfly valve 9 is closed in the first step, the switching valve on the liquid discharge pipe 11 is closed, water is injected towards the liquid inlet pipe 13 through external equipment, so that the water enters the V-shaped pipe 10, and the water level of the V-shaped pipe reaches the sealing effect;

and the nitrogen purging pipe is required to be closed, and then a diffusing valve 6 on the diffusing pipe 5 is closed, so that the front pressure of the second blind plate valve 7 is reduced to a value of 0;

and then the personnel are evacuated, and the inverted blind plate operation is carried out.

When the first blind plate valve 3 and the second blind plate valve 7 are operated, the computer detects the state signal condition of the butterfly valve 9 before the action, the water seal liquid level value of the V-shaped pipe 10 and the pressure value before the second blind plate valve 7 are detected, when the water seal liquid level value of the V-shaped pipe 10 does not meet the requirement, and when the pressure before the second blind plate valve 7 is not met, the computer stops executing the reverse blind plate valve command, and the first blind plate valve 3 and the second blind plate valve 7 cannot be operated.

The whole process has no influence on other normal production operations, the first blind plate valve 3 and the second blind plate valve 7 are controlled by a computer to perform reverse blind plate operation, the safety coefficient of the reverse blind plate operation is improved by the state of the integral structure, the accident occurrence caused by misoperation of personnel is avoided, and meanwhile, the gas operation risk is greatly reduced.

The foregoing is only a specific embodiment of the utility model to enable those skilled in the art to understand or practice the utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (6)

1. An improvement gas reverse blind plate operation safety mechanism, which is characterized by comprising:

the buffer shell (1), the right end lower part of the buffer shell (1) is fixedly inserted with an air inlet pipe (2), and a first blind plate valve (3) is arranged on the air inlet pipe (2);

the right end of the vent pipe (4) is fixedly inserted into the upper part of the left end of the buffer shell (1), a butterfly valve (9) and a second blind plate valve (7) are respectively arranged on the left side and the right side of the vent pipe (4), and the left side of the vent pipe (4) in the second blind plate valve (7) is fixedly connected with a pressure measuring device (8);

the device comprises a V-shaped pipe (10), wherein a drain pipe (11) is fixedly inserted into the lowest position of the lower end of the V-shaped pipe (10), and an observation pipe (12) is fixedly inserted into the lowest position of the upper end of the V-shaped pipe (10).

2. The safety mechanism for improving the operation of a gas reverse blind plate according to claim 1, wherein: the observation tube (12) is a transparent tube, and a liquid inlet tube (13) is fixedly inserted in the middle of the upper end of the observation tube (12).

3. The safety mechanism for improving the operation of the gas reverse blind plate according to claim 2, wherein: the liquid discharge pipe (11) is provided with a switch valve.

4. The safety mechanism for improving the operation of the gas reverse blind plate according to claim 2, wherein: the right side of the upper end of the vent pipe (4) is fixedly inserted with a diffusing pipe (5), and the diffusing pipe (5) is provided with a diffusing valve (6).

5. The safety mechanism for improving the operation of the gas reverse blind plate according to claim 2, wherein: the left end air outlet of the breather pipe (4) is connected with the right side air inlet of the upper end of the V-shaped pipe (10).

6. The safety mechanism for improving the operation of a gas reverse blind plate according to claim 1, wherein: the left side of the lower end of the air inlet pipe (2) is fixedly inserted with a nitrogen purging pipe.

Images