Gas treatment device of gas generator set

Abstract

The utility model discloses a gas generator set fuel gas treatment device, which comprises a dehydrator, a demister, an intercooler, a flame arrester, a pressure reducing valve and a gas outlet pipe which are connected in sequence, the dehydrator is provided with a gas inlet used for connecting a gas pipeline, a water circulation cooling pipeline is arranged in the intercooler, and the flame arrester is provided with a gas outlet. The gas outlet pipe is provided with a gas outlet used for being connected with an engine cylinder so that depressurized gas can flow out to the engine cylinder. According to the gas treatment device of the gas generator set, the problem of energy shortage can be effectively relieved, and meanwhile the device is simple in overall structure, easy to maintain and low in cost.

Description

Technical Field

[0001] The utility model relates to the technical field of gas processing, in particular to a gas processing device for a gas generator set. Background Art

[0002] As the world's gas energy becomes increasingly tense, everyone is making use of various combustible gases. Many coal mines obtain a lot of gas while mining coal, and each coal mine will make reasonable use of this gas. Among them, many coal mines use gas as fuel for generator sets to generate electricity.

[0003] However, since gas is naturally formed in underground coal seams, it contains a lot of impurities and moisture, and the gas temperature is relatively high and the pressure is high, which does not meet the engine's gas intake temperature and pressure requirements. It needs to be cooled and depressurized before it can enter the engine as a combustible gas. In addition, gas is very dangerous. If the concentration is too high, it is very easy to explode. A flame arrester must be used to ensure its safety. Therefore, before the gas enters the generator set, it needs to be processed to ensure safety while meeting the engine's gas requirements. Utility Model Content

[0004] The embodiment of the present application provides a gas processing device for a gas generator set, which can convert the gas obtained from the coal seam into gas that meets the requirements of the engine and use it as energy to generate electricity, which can not only increase benefits but also alleviate the problem of energy shortage.

[0005] An embodiment of the present application provides a gas processing device for a gas generator set, comprising a dehydrator, a demister, an intercooler, a flame arrester, a pressure reducing valve and an air outlet pipe which are connected in sequence, wherein the dehydrator is provided with an air inlet for connecting to a gas pipeline, wherein the demister is provided with a stainless steel wire mesh layer extending in a direction perpendicular to the gas flow direction, wherein the intercooler is provided with a water circulation cooling pipeline, and wherein the air outlet pipe is provided with an air outlet for connecting to an engine cylinder so that the reduced-pressure gas can flow out to the engine cylinder.

[0006] In a possible implementation, a drain valve is provided at the bottom of the dehydrator.

[0007] In a possible implementation, the gas processing device of the gas generator set also includes a chassis, the dehydrator, the flame arrester and the outlet pipe are all installed on the top of the chassis, the demister is connected to the top of the dehydrator, the intercooler is connected to the top of the demister, the top of the intercooler is connected to the flame arrester via an L-shaped elbow, and the height of the flame arrester is lower than that of the intercooler.

[0008] In a possible implementation, a filter chamber is provided on the top of the intercooler, the L-shaped elbow is connected to the side wall of the filter chamber, and a filter is installed in the filter chamber to filter the gas flowing from the intercooler into the L-shaped elbow.

[0009] In one possible implementation, the L-shaped elbow includes a fixed pipe, a flexible transition pipe and an L-shaped pipe, wherein the fixed pipe is fixedly installed on the side wall of the filter chamber, and the flexible transition pipe is connected between the fixed pipe and the L-shaped pipe in a manner that allows the length to be changed.

[0010] In a possible implementation, there are 2-4 pressure reducing valves, the flame arrester and the air outlet pipe are connected via 2-4 ventilation branches distributed in parallel, and the pressure reducing valve is respectively arranged on each of the ventilation branches.

[0011] Beneficial effects: Compared with the prior art, the gas processing device for the gas generator set provided in the present application can dehydrate, filter, cool, flame-retard and pressure-regulate the gas in sequence, so that it can be converted into a safe and reliable gas that meets the requirements of engine use, thereby making better use of the gas as energy for power generation, which can not only increase corporate benefits, but also alleviate the problem of energy shortage. In addition, the overall structure of the device is simple, easy to maintain, and low in cost. At the same time, the device is a skid-mounted assembly, which is easy to transport.

[0012] These and other purposes, features and advantages of the present invention are fully reflected in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A schematic diagram of the main structure of a gas processing device for a gas generator set of the present application is shown.

[0014] Figure 2 A schematic diagram of the structure of a gas processing device of a gas generator set in the present application is shown from a top view. DETAILED DESCRIPTION

[0015] The following description is used to disclose the utility model so that those skilled in the art can implement the utility model. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations. The basic principles of the utility model defined in the following description can be applied to other embodiments, variations, improvements, equivalents, and other technical solutions that do not deviate from the spirit and scope of the utility model.

[0016] Those skilled in the art should understand that, in the disclosure of the specification, the orientation or position relationship indicated by the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. are based on the orientation or position relationship shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms should not be understood as limiting the present invention.

[0017] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0018] refer to Figure 1 and Figure 2 The embodiment of the present application provides a gas processing device for a gas generator set, comprising a dehydrator 10, a demister 20, an intercooler 30, a flame arrester 40, a pressure reducing valve 50 and an air outlet pipe 60 connected in sequence, wherein the dehydrator 10 is provided with an air inlet 101 for connecting to a gas pipeline, wherein a wave plate for drainage is provided in the dehydrator 10 to collect and drain moisture from the gas entering from the air inlet 101, and a drain valve 11 is provided at the bottom of the dehydrator 10, after the wave plate collects the moisture, it slowly converges into water droplets, the water droplets are drained to the bottom, and discharged through the drain valve 11, the dehydrated gas moves upward, since the gas contains a large amount of impurities, the impurities in the gas can be filtered out by using the stainless steel wire mesh layer in the demister 20, completing the first step of filtering the gas, and then the gas continues to move upward into the intercooler, in addition, a water circulation cooling pipeline is provided in the intercooler 30, The gas is cooled by the internal pipeline water circulation to meet the temperature requirements of the engine cylinder for the fuel gas. In addition, considering that the methane content in the gas is relatively high, it is very easy to explode. The cooled gas enters the flame arrester 40, and the flame propagation and flame spread are prevented by the flame arrester 40 to achieve the purpose of extinguishing the fire. In addition, the gas pressure is generally around 20-25KPa, which does not meet the air intake requirements of the engine. Therefore, the gas after the fire is arrested continues to enter the pressure reducing valve 50 for pressure reduction, and the pressure is reduced to below 2KPa. In addition, the gas outlet pipe 60 is provided with an outlet port 601 for connecting to the engine cylinder to allow the reduced-pressure gas to flow out to the engine cylinder for use by the engine cylinder. Therefore, by dehydrating, filtering, cooling, fire-blocking and decompressing the gas in turn, it can become a safe and reliable gas directly used by the engine cylinder, which can effectively alleviate the problem of energy shortage.

[0019] In one embodiment, the gas processing device of the gas generator set further includes a chassis 70, and the dehydrator 10, the flame arrester 40 and the gas outlet pipe 60 are all installed on the top of the chassis 70. The demister 20 is connected to the top of the dehydrator 10, so that the dehydrated gas can automatically enter the demister 20 more quickly for a filtering process by virtue of the light weight and automatic upward characteristics of the gas. In addition, the intercooler 30 is connected to the top of the demister 20, and by virtue of the upward characteristics of the gas, the filtered gas automatically enters the intercooler 30 more quickly. In addition, the top of the intercooler 30 is connected to the flame arrester 40 through an L-shaped elbow 80, and the height of the flame arrester 40 is lower than that of the intercooler 30, so that the gas first moves horizontally, and then runs downward to enter the flame arrester 40. The flame arrester 40 mainly increases the heat transfer effect and the wall effect to prevent the flame from spreading. When the flame deflagrates and rushes towards the fire arrester core, the flame is blocked by the fire arrester core and divided into countless small fireballs, which expands the contact between the small flame and the wall, strengthens the heat transfer effect, and reduces the flame temperature below the ignition point, thereby preventing the flame from spreading; at the same time, the size of the fire arrester core filter channel is very small, causing a large number of free radicals in the burning material to touch the edge of the channel, which can reduce the free radical reaction and then improve the wall effect, thereby achieving the purpose of extinguishing the fire. In addition, the fire arrester element designed inside the flame arrester can increase the contact area between the flame and the channel wall, further strengthen the heat transfer, effectively reduce the flame temperature, and prevent the spread of flames.

[0020] Taking into account that gas is generated in coal seams, the gas often contains a large amount of impurities. In order to further ensure the purity of the gas, in one embodiment, a filter chamber 90 is provided on the top of the intercooler 30, and the L-shaped elbow 80 is connected to the side wall of the filter chamber 90, and a filter is installed in the filter chamber 90 to filter the gas flowing from the intercooler 30 into the L-shaped elbow 80.

[0021] In one embodiment, the L-shaped elbow 80 includes a fixed pipe 81, a flexible transition pipe 82 and an L-shaped pipe 83, wherein the fixed pipe 81 is fixedly installed on the side wall of the filter chamber 90, and the flexible transition pipe 82 is connected between the fixed pipe 81 and the L-shaped pipe 83 in a manner that allows the length to be changed. Therefore, the variable length characteristic of the flexible transition pipe 82 can facilitate the installation of the gas processing device and prevent the occurrence of assembly errors.

[0022] In order to ensure the gas flow, the pressure reducing valves 50 are provided in 2-4 numbers, for example, 3 numbers. Meanwhile, the flame arrester 40 and the gas outlet pipe 60 are connected via 2-4 ventilation branches distributed in parallel, and the pressure reducing valves 50 are respectively arranged on each of the ventilation branches. In this way, the simultaneous processing of multiple pressure reducing valves 50 can fully meet the use requirements of the engine operation.

[0023] It should be understood by those skilled in the art that the embodiments of the present invention described above and shown in the accompanying drawings are only examples and do not limit the present invention. The advantages of the present invention have been fully and effectively realized. The functions and structural principles of the present invention have been demonstrated and explained in the embodiments, and the embodiments of the present invention may be deformed or modified in any way without departing from the principles.

Claims

1. A gas processing device for a gas generator set, characterized in that: It comprises a dehydrator, a demister, an intercooler, a flame arrester, a pressure reducing valve and an air outlet pipe which are connected in sequence, wherein the dehydrator is provided with an air inlet for connecting to a gas pipeline, wherein the demister is provided with a stainless steel wire mesh layer extending in a direction perpendicular to the gas flow direction, wherein the intercooler is provided with a water circulation cooling pipeline, and wherein the air outlet pipe is provided with an air outlet for connecting to an engine cylinder so that the reduced-pressure gas can flow out to the engine cylinder.

2. The gas processing device for a gas generator set according to claim 1, characterized in that: A drain valve is arranged at the bottom of the dehydrator.

3. The gas processing device for a gas generator set according to claim 1, characterized in that: It also includes a chassis, the dehydrator, the flame arrester and the exhaust pipe are all installed on the top of the chassis, the demister is connected to the top of the dehydrator, the intercooler is connected to the top of the demister, the top of the intercooler is connected to the flame arrester through an L-shaped elbow, and the height of the flame arrester is lower than that of the intercooler.

4. The gas processing device for a gas generator set according to claim 3, characterized in that: A filter chamber is provided on the top of the intercooler, the L-shaped elbow is connected to the side wall of the filter chamber, and a filter screen is installed in the filter chamber to filter the gas flowing from the intercooler into the L-shaped elbow.

5. The gas processing device for a gas generator set according to claim 4, characterized in that: The L-shaped elbow includes a fixed pipe, a soft-connection transition pipe and an L-shaped pipe, wherein the fixed pipe is fixedly installed on the side wall of the filter chamber, and the soft-connection transition pipe is connected between the fixed pipe and the L-shaped pipe in a variable length manner.

6. The gas processing device for a gas generator set according to claim 1, characterized in that: There are 2-4 pressure reducing valves, the flame arrester and the air outlet pipe are connected via 2-4 ventilation branches distributed in parallel, and the pressure reducing valve is respectively arranged on each of the ventilation branches.

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