CN111207255A

CN111207255A - Gas pipeline safety device for oven

Info

Publication number: CN111207255A
Application number: CN202010165632.9A
Authority: CN
Inventors: 谷媛媛; 胡斯楞
Original assignee: China MCC20 Group Corp Ltd
Current assignee: China MCC20 Group Corp Ltd
Priority date: 2020-03-11
Filing date: 2020-03-11
Publication date: 2020-05-29

Abstract

The invention provides a gas pipeline safety device for a baking oven, which comprises: a first pipe body having one end opened to communicate with a main gas pipe; the wall surface of the first pipe body is provided with a plurality of pressure relief holes; and the pressure absorption piece is arranged at the opening end of the first pipe body and is used for absorbing pressure waves when the pressure of the main gas pipe is overlarge. According to the gas pipeline safety device for the drying oven, the first pipe body is provided with the pressure relief hole, the pressure absorbing piece is arranged between the gas main pipe and the first pipe body, and after a part of pressure waves are absorbed by the pressure absorbing piece, the rest small part of pressure waves are released to the outside through the pressure relief hole, so that the safety protection effect is effectively played; the construction cost is low, the universality is strong, and the potential safety hazard caused by unstable gas pressure of the industrial furnace baking oven is favorably eliminated.

Description

Gas pipeline safety device for oven

Technical Field

The invention relates to the technical field of gas pipeline safety devices, in particular to a gas pipeline safety device for a baking oven.

Background

At present, when an industrial furnace is dried, the pressure of gas supplied from the beginning is unstable, and when the pressure is high, the risk of pipeline explosion can be caused, and serious safety accidents can be caused. However, most of safety devices in the prior art are composed of a safety valve, a gas discharge pipeline and the like which are connected in series, when the pressure in a pressure container is instantaneously higher than the set upper limit of the safety pressure of 0.3-0.32 MPa, the safety device is opened to realize the safety function, however, the safety device needs to be provided with complicated pipelines, the cost is high, and the construction efficiency is not improved.

Disclosure of Invention

In view of this, the invention provides a gas pipeline safety device for a baking oven, and aims to solve the problems of high construction cost and low construction efficiency of the existing gas pipeline safety device for the baking oven.

In one aspect, the present invention provides a gas pipeline safety device for a baking oven, comprising: a first pipe body having one end opened to communicate with a main gas pipe; a plurality of first pressure relief holes are formed in the wall surface of the first pipe body;

and the pressure absorption piece is arranged at the opening end of the first pipe body and is used for absorbing pressure waves when the pressure of the main gas pipe is overlarge.

Further, in the above gas pipe safety device for a drying oven, a concave portion is provided on a surface of the pressure absorbing member facing the gas main pipe.

Further, in the above gas pipeline safety device for a drying oven, the pressure absorbing member is a lead plate.

Further, in the above gas pipeline safety device for a drying oven, the first pipe body is connected to the gas main pipeline through a first flange.

Further, in the gas pipeline safety device for the oven, the diameter of the pressure absorbing piece is the same as the outer diameter of the flange gasket.

Further, the gas pipeline safety device for the oven further comprises: a second tube with one open end; the second pipe body is sleeved outside the first pipe body through threads, and a plurality of second pressure relief holes are correspondingly formed in the second pipe body.

Further, in the gas pipeline safety device for the oven, the first pressure relief holes are uniformly distributed along the wall surface of the first pipe body; and/or all the second pressure relief holes are uniformly distributed along the wall surface of the second pipe body.

Further, in the gas pipeline safety device for the oven, the diameter and the length of the first pipe body are the same; and/or the diameter and length of the second tube are the same.

Further, in the gas pipeline safety device for the oven, the diameter of the first pressure relief hole is 15-25 mm.

Further, in the above gas pipeline safety device for a drying oven, a first blocking plate is arranged at one end of the first pipe body, which is far away from the main gas pipeline, and the thickness of the first blocking plate is not less than the wall thickness of the first pipe body.

According to the gas pipeline safety device for the drying oven, the first pressure relief hole is formed in the first pipe body, the pressure absorbing piece is arranged between the gas main pipe and the first pipe body, and after a part of pressure waves are absorbed by the pressure absorbing piece, the remaining small part of pressure waves are released to the outside through the first pressure relief hole, so that the safety protection effect is effectively achieved; the construction cost is low, the universality is strong, and the potential safety hazard caused by unstable gas pressure of the industrial furnace baking oven is favorably eliminated.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:

FIG. 1 is a schematic structural diagram of a gas pipeline safety device for a baking oven according to an embodiment of the present invention;

FIG. 2 is a schematic view of a safety device of a gas pipeline for a baking oven according to an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of another gas pipeline safety device for a baking oven according to an embodiment of the present invention;

fig. 4 is a schematic view of a use state of another gas pipeline safety device for a drying oven according to an embodiment of the present invention.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

Referring to fig. 1 and 2, a gas pipe safety device for a toaster according to an embodiment of the present invention includes: a first pipe body 1 and a pressure absorbing member 2, one end of the first pipe body 1 being open to communicate with a main gas pipe 4; the wall surface of the first pipe body 1 is provided with a plurality of first pressure relief holes 3; the pressure absorption piece 2 is arranged at the opening end of the first pipe body 1 and used for absorbing pressure waves when the pressure of the main gas pipeline 4 is too high.

Specifically, the first pipe body 1 is opened towards one end of the main gas pipeline 4, a first blocking plate 6 is arranged at one end far away from the main gas pipeline 4, and the thickness of the first blocking plate 6 is not lower than the wall thickness of the first pipe body 1. In practice, the first pipe body 1 may be sealed with a steel plate according to the conditions of the construction site. The pipe diameter of the first pipe body 1 is the same as the main gas pipeline for the oven, and preferably, the length and the diameter of the first pipe body 1 are equal.

Further, each first pressure relief hole 3 is uniformly distributed along the circumferential direction of the wall surface of the first pipe body 1, and the pressure relief holes 3 can be formed in a mechanical hole forming mode. The diameter of the first pressure relief hole 3 may be 15-25mm, preferably 20 mm.

With continued reference to fig. 2, the first pipe body 1 is connected to the main gas pipe 4 by means of a first flange 11. The pressure rating of the first flange 11 is equal to the pressure rating of the second flange 41 on the main gas conduit 4. A flange gasket (not shown) is provided between the first flange 11 and the second flange 41.

The pressure absorbing member 2 may have a plate-like structure, for example, a flat plate-like structure or a plate-like structure having a recessed surface. Preferably, a concave portion 21 is formed on a surface of the pressure absorbing member 2 facing the main gas pipe 4 so as to intensively absorb pressure fluctuation. More preferably, the arc of the arc surface of the recessed portion 21 is an obtuse angle. In the embodiment, the lead plate is selected as the pressure absorption member 2, and the lead plate can be cylindrical, and the concave part can be formed in the middle of the lead plate, so that the lead plate can better play a role in pressure absorption. The diameter of the pressure absorbing member 2 is the same as the outer diameter of the flange gasket. The thickness of the pressure absorption piece 2 can be determined according to actual conditions, and the pressure born by the pressure absorption piece can be ensured to be larger than the pressure of the coal gas.

Referring to fig. 2, the method for using the gas pipeline safety device in this embodiment is as follows: the manufactured safety device is installed at the tail end of a gas main pipeline, a lead plate is additionally arranged between a first flange 11 of the safety device and a second flange 41 of the gas main pipeline, if the pressure of supplied gas is unstable, the lead plate is directly broken when the pressure is too large, the pipeline is not exploded, and a small circular hole in the wall surface of the first pipe body 11 can prevent the exploded lead plate from injuring surrounding operators.

The aforesaid can obviously derive, the gas pipeline safety device who provides in this embodiment, through set up first pressure release hole on first body, be responsible for and set up pressure absorbing piece between first body at the gas, absorb the back with some pressure waves through pressure absorbing piece and release remaining fractional pressure wave to the outside through first pressure release hole, the effectual effect that has played safety protection, whole device simple structure, the preparation of being convenient for, low in construction cost and commonality are stronger, be favorable to eliminating the industrial furnace baker because of the unstable potential safety hazard that brings of gas pressure.

Referring to fig. 3 and 4, in the above embodiment, the method may further include: a second tube 5 having an open end; the second tube 5 is sleeved outside the first tube 1 through threads, and a plurality of second pressure relief holes (not shown in the figure) are correspondingly formed in the second tube 5.

Specifically, the second pipe 5 is open towards one end of the main gas pipe 4, a second blocking plate 7 is arranged at one end far away from the main gas pipe 4, and the thickness of the second blocking plate 7 is not less than the wall thickness of the second pipe 5. In practice, the second pipe body 5 can be blocked by a steel plate according to the conditions of a construction site. Preferably, the second tubular body 5 has a length and a diameter equal to each other. The second tube 5 is larger in size than the first tube 1. The second pipe body 5 is provided with internal threads, and the outer wall of the first pipe body 1 is provided with external threads. The first pipe body 1 and the second pipe body 5 may be screwed only at a position near the opening. Further, each second pressure relief hole is uniformly distributed along the circumferential direction of the wall surface of the second tube 5, and the aperture of each second pressure relief hole may be 15-25mm, preferably 20 mm.

It can be clearly seen that by screwing the second body 5 outside the first body 1, the flow area of the pressure relief holes in the first body 1 and the second body 5 can be adjusted by means of the screw thread. When the pressure in the main gas pipeline 4 is relatively high, the second pipe body 5 can be screwed, so that the pressure relief holes 3 on the first pipe body 1 and the second pipe body 5 are in one-to-one correspondence, the flow area of the gas is maximized, and the overlarge pressure is released; when the pressure in the main gas pipeline 4 is relatively low, the pressure relief holes 3 on the first pipe body 1 and the second pipe body 5 can be staggered to a certain degree, so that the flow area of gas is reduced, and excessive release of gas to the external environment can be avoided; when the gas is not required to be released, the pressure release holes on the first pipe body 1 and the second pipe body 5 can be completely staggered, so that the second pipe body is locked with the first pipe body, the gas is prevented from leaking, and the second pipe body can be screwed with the first pipe body when a lead plate is maintained and replaced.

In summary, according to the gas pipeline safety device for the oven provided by the invention, the first pressure relief hole is formed in the first pipe body, the pressure absorbing member is arranged between the gas main pipe and the first pipe body, and after a part of pressure waves are absorbed by the pressure absorbing member, the rest small pressure waves are released to the outside through the pressure relief hole, so that the safety protection effect is effectively played.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. A gas pipeline safety device for a baking oven is characterized by comprising:

a first pipe body having one end opened to communicate with a main gas pipe; a plurality of first pressure relief holes are formed in the wall surface of the first pipe body;

2. The safety device for a gas pipe of an oven according to claim 1, wherein a concave portion is formed on a surface of the pressure absorbing member facing the gas main pipe.

3. The oven gas pipe safety device according to claim 1 or 2, wherein the pressure absorbing member is a lead plate.

4. The oven gas pipe safety device of claim 1, wherein said first pipe is connected to said main gas pipe by a first flange.

5. The oven gas pipe safety device according to claim 4, wherein the pressure absorbing member has the same diameter as an outer diameter of the flange gasket.

6. The gas pipeline safety device for ovens of claim 1, further comprising: a second tube with one open end; wherein the content of the first and second substances,

the second pipe body is sleeved outside the first pipe body through threads, and a plurality of second pressure relief holes are correspondingly formed in the second pipe body.

7. The gas pipeline safety device for an oven according to claim 6, wherein each of the first pressure relief holes is uniformly distributed along the wall surface of the first tube; and/or all the second pressure relief holes are uniformly distributed along the wall surface of the second pipe body.

8. The oven gas duct safety device of claim 6, wherein the first tubular body has the same diameter and length; and/or the diameter and length of the second tube are the same.

9. The gas pipeline safety device for an oven according to any one of claims 1 to 8, wherein the diameter of the first pressure relief hole is 15-25 mm.

10. The safety device for a gas pipeline of an oven according to any one of claims 1 to 8, wherein a first blocking plate is arranged at one end of the first pipe body far away from the main gas pipeline, and the thickness of the first blocking plate is not less than the wall thickness of the first pipe body.