阅读说明：本技术 一种天然气供气系统及天然气环保瓷砖窑炉 (Natural gas supply system and natural gas environmental protection ceramic brick kiln ) 是由 石明文 黄大泱 叶建明 李姣华 卢佩玉 于 2021-08-24 设计创作，主要内容包括：本发明涉及窑炉用供气系统技术领域,本发明公开了一种天然气供气系统及天然气环保瓷砖窑炉,所述的天然气供气系统,包括：进气管道,所述进气管道上端用于连接天然气源,所述进气管道下端分别连接有第一输送管道、第二输送管道；出气管道,所述出气管道末端用于连接瓷砖窑炉的烧嘴,且所述第一输送管道、第二输送管道在所述出气管道前端汇合；所述第一输送管道、第二输送管道之间设有连接管道。本发明所述的天然气供气系统能够有效的将天然气源的高压天然气转换为瓷砖窑炉生产用的低压天然气,能够起到良好的降压稳压作用,且采用天然气相比于采用煤气,具有良好的节能环保效果。(The invention relates to the technical field of gas supply systems for kilns, and discloses a natural gas supply system and a natural gas environment-friendly ceramic tile kiln, wherein the natural gas supply system comprises: the upper end of the air inlet pipeline is used for connecting a natural gas source, and the lower end of the air inlet pipeline is respectively connected with a first conveying pipeline and a second conveying pipeline; the tail end of the air outlet pipeline is used for being connected with a burner of a ceramic tile kiln, and the first conveying pipeline and the second conveying pipeline are converged at the front end of the air outlet pipeline; and a connecting pipeline is arranged between the first conveying pipeline and the second conveying pipeline. The natural gas supply system can effectively convert high-pressure natural gas of a natural gas source into low-pressure natural gas for production of the ceramic brick kiln, can play a good role in reducing and stabilizing pressure, and has good energy-saving and environment-friendly effects compared with the natural gas adopted by coal gas.)

1. A natural gas supply system, comprising:

the upper end of the air inlet pipeline is used for connecting a natural gas source, and the lower end of the air inlet pipeline is respectively connected with a first conveying pipeline and a second conveying pipeline;

the tail end of the air outlet pipeline is used for being connected with a burner of a ceramic tile kiln, and the first conveying pipeline and the second conveying pipeline are converged at the front end of the air outlet pipeline;

and a connecting pipeline is arranged between the first conveying pipeline and the second conveying pipeline.

2. The natural gas supply system according to claim 1, wherein the first pipeline is sequentially provided with a first mechanical pressure gauge, a first natural gas filter, a flow meter, a first pressure reducing valve, a safety overflow valve, an electric actuator and a pressure sensor.

3. The natural gas supply system of claim 2, wherein a first butterfly valve is disposed between the first mechanical pressure gauge and the first natural gas filter.

4. The natural gas supply system of claim 2, wherein a second butterfly valve and a third butterfly valve are sequentially arranged between the flow meter and the first pressure reducing valve.

5. The natural gas supply system according to claim 2, wherein a first high-low pressure relay and a second mechanical pressure gauge are sequentially arranged between the safety overflow valve and the electric actuator.

6. The natural gas supply system of claim 2, wherein a fourth butterfly valve, a second high-low pressure relay and a fourth mechanical pressure gauge are sequentially arranged between the pressure sensor and the gas outlet pipeline.

7. The natural gas supply system of claim 2, wherein the connecting pipeline is located in the middle of the first and second delivery pipelines.

8. The natural gas supply system of claim 2, wherein a fifth butterfly valve is provided on the connecting pipe.

9. The natural gas supply system of claim 1, wherein a sixth butterfly valve, a second natural gas filter, a second pressure reducing valve and a seventh butterfly valve are sequentially arranged on the second conveying pipeline.

10. An environment-friendly natural gas kiln, which is characterized by comprising the natural gas supply system of any one of claims 1 to 9.

Technical Field

The invention relates to the technical field of gas supply systems for kilns, in particular to a natural gas supply system and a natural gas environment-friendly ceramic tile kiln.

Background

The kiln is a device built by refractory materials for sintering products, and is a necessary facility in ceramic tile forming. Most tunnel kilns adopted by the existing tile sintering method use coal gas as fuel, the coal gas causes great air pollution, the coal gas has the characteristic of insufficient combustion during combustion, tar generated in the coal gas combustion process has the problems of coal gas pipe ash falling and the like, so that the fired tiles have stains, the production quality of the tiles is low, the production efficiency is low, and the production cost is high. Thus limiting its application in ceramic kiln.

Disclosure of Invention

The invention provides a natural gas supply system and a natural gas environment-friendly ceramic tile kiln.

The invention adopts the following technical scheme for solving the technical problems:

a natural gas supply system comprising:

the upper end of the air inlet pipeline is used for connecting a natural gas source, and the lower end of the air inlet pipeline is respectively connected with a first conveying pipeline and a second conveying pipeline;

the tail end of the air outlet pipeline is used for being connected with a burner of a ceramic tile kiln, and the first conveying pipeline and the second conveying pipeline are converged at the front end of the air outlet pipeline;

and a connecting pipeline is arranged between the first conveying pipeline and the second conveying pipeline.

In the invention, in a general case, the first conveying pipeline is a main pipeline, the second conveying pipeline is a standby pipeline, the conveying state of the corresponding conveying pipeline can be controlled by a corresponding butterfly valve, and when the first conveying pipeline is in a problem or the first conveying pipeline is damaged, pressure stabilization and pressure reduction can be performed by the standby pipeline (the second conveying pipeline).

Preferably, a first mechanical pressure gauge, a first natural gas filter, a flow meter, a first pressure reducing valve, a safety overflow valve, an electric actuator and a pressure sensor are sequentially arranged on the first conveying pipeline.

Preferably, a first butterfly valve is arranged between the first mechanical pressure gauge and the first natural gas filter.

Preferably, a second butterfly valve and a third butterfly valve are sequentially arranged between the flowmeter and the first pressure reducing valve.

Preferably, a first high-low pressure relay and a second mechanical pressure gauge are sequentially arranged between the safety overflow valve and the electric actuator.

Preferably, a fourth butterfly valve, a second high-low pressure relay and a fourth mechanical pressure gauge are sequentially arranged between the pressure sensor and the air outlet pipeline.

Preferably, the connecting pipeline is located in the middle section of the first conveying pipeline and the second conveying pipeline.

Preferably, a fifth butterfly valve is arranged on the connecting pipeline.

Preferably, a sixth butterfly valve, a second natural gas filter, a second pressure reducing valve and a seventh butterfly valve are sequentially arranged on the second conveying pipeline.

The invention also provides a natural gas environment-friendly kiln which comprises the natural gas supply system.

The first natural gas filter and the second natural gas filter are used for filtering impurities in natural gas and improving purity, and the first pressure reducing valve is used for reducing the pressure of the natural gas by high pressure and low pressure to be used by the ceramic tile kiln.

The electric actuator is used for stabilizing and controlling the pressure of the natural gas for the production of the ceramic brick kiln.

The pressure sensor is a natural gas pressure protection device, and effectively protects the conveying pipeline.

The flowmeter is used for displaying the natural gas flow usage data.

The natural gas pressure real-time monitoring system is characterized in that the first mechanical pressure gauge, the second mechanical pressure gauge, the third mechanical pressure gauge and the fourth mechanical pressure gauge are used for displaying the natural gas pressure in real time, wherein the first mechanical pressure gauge is used for displaying the pressure of natural gas entering the first conveying pipeline, the second mechanical pressure gauge is used for displaying the pressure of the natural gas after being decompressed by the first decompression valve, the third mechanical pressure gauge is used for displaying the pressure of the natural gas after passing through the electric actuator, and the fourth mechanical pressure gauge is used for displaying the output natural gas pressure.

The butterfly valves (first to seventh) are used for controlling the flow state of the natural gas in the closed or opened pipeline.

In the use of the natural gas filter, the first natural gas filter, the second natural gas filter, the first pressure reducing valve and the electric actuator are in the most important operating state, and if a certain component is damaged, the system can effectively check one by one.

When a certain part of the natural gas supply system is in failure or damaged, the failure of the certain part can be eliminated one by one through the first butterfly valve, the seventh butterfly valve and the corresponding first mechanical pressure gauge or fourth mechanical pressure gauge, so that the system part can be repaired or replaced.

For example, in the system, when the system is normally used, the fifth butterfly valve, the sixth butterfly valve and the seventh butterfly valve are closed, and natural gas is conveyed through the first conveying pipeline.

If a certain part when the aforesaid break down, the pressure value that corresponding mechanical pressure gauge then shows is not in the default scope to can judge that a certain section breaks down, can take the stand-by pipeline through the state that opens and shuts of corresponding butterfly valve control in addition, and whether a certain part damages is judged to the operation that first pipeline to this route of connecting tube to second pipeline or second pipeline to this route of connecting tube to first pipeline, thereby overhaul the system or change the part.

The invention has the beneficial effects that: the natural gas supply system can effectively convert high-pressure natural gas of a natural gas source into low-pressure natural gas for production of the ceramic brick kiln, can play a good role in reducing and stabilizing pressure, can adopt the second conveying pipeline to stabilize and reduce pressure if the first conveying pipeline fails when the natural gas supply system is adopted, can effectively find out parts and parts with failures through the natural gas supply system when the natural gas supply system fails, and has good energy-saving and environment-friendly effects compared with the natural gas adopted by coal gas.

Drawings

FIG. 1 is a schematic view of the structure of the present invention.

The notation in the figure is: 1. an air intake duct; 2. an air outlet pipe; 3. a first delivery conduit; 4. a second delivery conduit; 5. connecting a pipeline; 6. a first mechanical pressure gauge; 7. a first butterfly valve; 8. a first natural gas filter; 9. a flow meter; 10. a second butterfly valve; 11. a third butterfly valve; 12. a first pressure reducing valve; 13. a safety overflow valve; 14. a first high-low pressure relay; 15. a second mechanical pressure gauge; 16. an electric actuator; 17. a third mechanical pressure gauge; 18. a pressure sensor; 19. a fourth butterfly valve; 20. a second high-low pressure relay; 21. a fourth mechanical pressure gauge; 22. a fifth butterfly valve; 23. a sixth butterfly valve; 24. a second natural gas filter; 25. a second pressure reducing valve; 26. and a seventh butterfly valve.

Detailed Description

For a more clear understanding of the technical features, objects and effects of the present invention, embodiments of the present invention will now be described in detail with reference to the accompanying drawings. In the following description, it is to be understood that the orientations and positional relationships indicated by "front", "rear", "upper", "lower", "left", "right", "longitudinal", "lateral", "vertical", "horizontal", "top", "bottom", "inner", "outer", "leading", "trailing", and the like are configured and operated in specific orientations based on the orientations and positional relationships shown in the drawings, and are only for convenience of describing the present invention, and do not indicate that the device or element referred to must have a specific orientation, and thus, are not to be construed as limiting the present invention.

It is also noted that, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," "disposed," and the like are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. When an element is referred to as being "on" or "under" another element, it can be "directly" or "indirectly" on the other element or intervening elements may also be present. The terms "first", "second", "third", etc. are only for convenience in describing the present technical solution, and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated, whereby the features defined as "first", "second", "third", etc. may explicitly or implicitly include one or more of such features. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system structures, techniques, etc. in order to provide a thorough understanding of the embodiments of the invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.

Referring to fig. 1, the present invention provides a technical solution:

a natural gas supply system comprising:

the natural gas pipeline comprises an air inlet pipeline 1, wherein the upper end of the air inlet pipeline 1 is used for being connected with a natural gas source, and the lower end of the air inlet pipeline 1 is respectively connected with a first conveying pipeline 3 and a second conveying pipeline 4;

the tail end of the air outlet pipeline 2 is used for being connected with a burner of a ceramic tile kiln, and the first conveying pipeline 3 and the second conveying pipeline 4 are converged at the front end of the air outlet pipeline 2;

and a connecting pipeline 5 is arranged between the first conveying pipeline 3 and the second conveying pipeline 4.

Further, a first mechanical pressure gauge 6, a first natural gas filter 8, a flow meter 9, a first pressure reducing valve 12, a safety overflow valve 13, an electric actuator 16 and a pressure sensor 18 are sequentially arranged on the first conveying pipeline 3,

a first butterfly valve 7 is arranged between the first mechanical pressure gauge 6 and the first natural gas filter 8, a second butterfly valve 10 and a third butterfly valve 11 are sequentially arranged between the flowmeter 9 and the first pressure reducing valve 12, a first high-low pressure relay 14 and a second mechanical pressure gauge 15 are sequentially arranged between the safety overflow valve 13 and the electric actuator 16, and a fourth butterfly valve 19, a second high-low pressure relay 20 and a fourth mechanical pressure gauge 21 are sequentially arranged between the pressure sensor 18 and the gas outlet pipeline 2.

Further, the connecting pipeline 5 is located in the middle section of the first conveying pipeline 3 and the second conveying pipeline 4, and a fifth butterfly valve 22 is arranged on the connecting pipeline 5.

Further, a sixth butterfly valve 23, a second natural gas filter 24, a second pressure reducing valve 25, and a seventh butterfly valve 26 are sequentially provided in the second transport pipe 4.

The natural gas supply system can effectively convert high-pressure natural gas of a natural gas source into low-pressure natural gas for production of the ceramic brick kiln, can play a good role in pressure reduction and pressure stabilization, can adopt the second conveying pipeline 4 to carry out pressure stabilization and pressure reduction if the first conveying pipeline 3 fails when adopting the natural gas supply system, can effectively find out parts and parts with failures through the natural gas supply system when failing at the same time, and has good energy-saving and environment-friendly effects compared with coal gas when adopting natural gas.

The first natural gas filter 8 and the second natural gas filter 24 are used for filtering impurities in natural gas and improving purity, and the first pressure reducing valve 12 is used for reducing the pressure of the natural gas under high pressure and low pressure to be used by a ceramic tile kiln.

The electric actuator 16 is used for stabilizing and controlling the pressure of the natural gas for the production of the ceramic brick kiln.

The pressure sensor 18 is a natural gas pressure protection device, and effectively protects a conveying pipeline.

The flow meter 9 is used for displaying the natural gas flow use data.

The natural gas pressure display system is characterized in that the first mechanical pressure gauge 6, the second mechanical pressure gauge 15, the third mechanical pressure gauge 17 and the fourth mechanical pressure gauge 21 are used for displaying the natural gas pressure in real time, wherein the first mechanical pressure gauge 6 is used for displaying the pressure of natural gas entering the first conveying pipeline 3, the second mechanical pressure gauge 15 is used for displaying the pressure of the natural gas after being decompressed by the first decompression valve 12, the third mechanical pressure gauge 17 is used for displaying the pressure of the natural gas after passing through the electric actuator 16, and the fourth mechanical pressure gauge 21 is used for displaying the output natural gas pressure.

The butterfly valves (first to seventh) are used for controlling the flow state of the natural gas in the closed or opened pipeline.

In the use of the present invention, the operation states of the first natural gas filter 8, the second natural gas filter 24, the first pressure reducing valve 12, the second pressure reducing valve and the electric actuator 16 are important, and if some component is damaged, the system can effectively perform one-by-one inspection.

When a certain part of the natural gas supply system is in fault or damaged, the fault of the certain part can be eliminated one by one through the first butterfly valve 7 to the seventh butterfly valve 26 and the corresponding first mechanical pressure gauge 6 or the fourth mechanical pressure gauge 21, so that the system part can be repaired or replaced.

For example, in the present system, when in normal operation, the fifth butterfly valve 22, the sixth butterfly valve 23 and the seventh butterfly valve 26 are closed, and natural gas is transported through the first transport pipe 3.

If a certain part when the aforesaid break down, the pressure value that corresponding mechanical pressure gauge then shows is not in the default range to can judge that a certain section breaks down, can take the stand-by pipeline through the state that opens and shuts of corresponding butterfly valve control in addition, and whether a certain part damages is judged to the operation that comes from first pipeline 3 to this route of connecting tube 5 to second pipeline 4 or and second pipeline 4 to this route of connecting tube 5 to first pipeline 3, thereby overhaul the system or change the part.

While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.