CN218002300U - Gas leakage capturing device of natural gas dew point heater - Google Patents

Gas leakage capturing device of natural gas dew point heater Download PDF

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CN218002300U
CN218002300U CN202221033851.2U CN202221033851U CN218002300U CN 218002300 U CN218002300 U CN 218002300U CN 202221033851 U CN202221033851 U CN 202221033851U CN 218002300 U CN218002300 U CN 218002300U
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gas
piece
natural gas
heat exchanger
dew point
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CN202221033851.2U
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黄奎
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Huaneng Henan Zhongyuan Gas Power Generation Co Ltd
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Huaneng Henan Zhongyuan Gas Power Generation Co Ltd
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Abstract

The utility model discloses a gas leakage catching device of a natural gas dew point heater, which comprises a heating component, a heat exchanger body, a supporting piece arranged at the bottom of the heat exchanger body, and a fixing piece arranged at the bottom of the supporting piece; and the capturing assembly comprises a separating piece arranged in the inner cavity of the heat exchanger body, an air collecting piece arranged at the top of the heat exchanger body, a sealing piece and an automatic exhaust valve arranged at the top of the air collecting piece, and a detecting piece, an alarming piece and a protecting piece which are arranged at the outer side of the air collecting piece. The device is through setting up heating element and catching the subassembly, has improved the seizure efficiency to leaking the natural gas, still in time reminds personnel in time to discover, in time handles, avoids equipment defect to handle untimely, leads to the natural gas to collect in a large number and brews the accident.

Description

Gas leakage capturing device of natural gas dew point heater
Technical Field
The utility model relates to a heat exchanger monitoring devices field, especially a natural gas dew point heater gas leakage trapping apparatus.
Background
For guaranteeing that the temperature of the depressurized natural gas is higher than the dew point temperature of hydrocarbon, the natural gas is required to be heated by a gas turbine, the natural gas is heated by a shell-and-tube heat exchanger in the existing gas turbine power plant, a natural gas pipeline is soaked in hot water for a long time to operate, the natural gas is easy to leak into a shell-and-tube hot water circulating system, and the natural gas pipeline is not easy to perceive and has potential risks of explosion.
SUMMERY OF THE UTILITY MODEL
This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract of the specification and the title of the application to avoid obscuring the purpose of this section, the abstract of the specification and the title of the application, and such simplifications or omissions are not intended to limit the scope of the invention.
The utility model discloses in view of above-mentioned and/or the problem that exists among the existing natural gas dew point heater gas leak trapping apparatus, the utility model discloses.
Therefore, the utility model discloses how to solve the natural gas line and soak for a long time and move in the hot water in the problem that will solve, take place the natural gas easily and leak to the pipe hot water circulating system in, be difficult for noticing, there is the risk hidden danger that explodes.
In order to solve the technical problem, the utility model provides a following technical scheme: a gas leakage catching device of a natural gas dew point heater comprises a heating assembly, a heat exchanger and a gas leakage catching device, wherein the heating assembly comprises a heat exchanger body, a supporting piece arranged at the bottom of the heat exchanger body, and a fixing piece arranged at the bottom of the supporting piece; and the capturing assembly comprises a separating piece arranged in the inner cavity of the heat exchanger body, an air collecting piece arranged at the top of the heat exchanger body, a sealing piece and an automatic exhaust valve arranged at the top of the air collecting piece, and a detecting piece, an alarming piece and a protecting piece which are arranged at the outer side of the air collecting piece.
As a natural gas dew point heater gas leakage trapping apparatus's an preferred scheme, wherein: the support piece comprises a support semi-ring arranged at the bottom of the heat exchanger body and a support plate arranged at the bottom of the support semi-ring.
As a natural gas dew point heater gas leakage capture device's an preferred scheme, wherein: the mounting including set up in the fixed block of backup pad both sides to and set up in the gim peg of fixed block inner chamber.
As a natural gas dew point heater gas leakage capture device's an preferred scheme, wherein: the separator comprises a first gas-water separation plate and a second gas-water separation plate which are arranged in the inner cavity of the heat exchanger body.
As a natural gas dew point heater gas leakage trapping apparatus's an preferred scheme, wherein: the gas collecting piece comprises a gas collecting bin arranged at the top of the heat exchanger body and a top cover arranged at the top of the gas collecting bin.
As a natural gas dew point heater gas leakage capture device's an preferred scheme, wherein: the sealing element comprises a sealing block arranged on the inner wall of the gas collection bin and a sealing bolt arranged in the inner cavity of the sealing block.
As a natural gas dew point heater gas leakage capture device's an preferred scheme, wherein: the sealing member is characterized by also comprising a sealing ring arranged at the bottom of the top cover and a sealing groove arranged at the top of the gas collecting bin.
As a natural gas dew point heater gas leakage capture device's an preferred scheme, wherein: the detection piece is including set up in the natural gas leakage alarm in the gas collection storehouse outside, and set up in the gas sensor of gas collection storehouse inner chamber.
As a natural gas dew point heater gas leakage capture device's an preferred scheme, wherein: the alarm piece including set up in the support frame in the gas collection storehouse outside, and set up in audible-visual annunciator at support frame top.
As a natural gas dew point heater gas leakage capture device's an preferred scheme, wherein: the protection piece is including setting up in the guard plate of the gas collection storehouse outside to and set up in guard ring at guard plate top and bottom.
The utility model discloses beneficial effect does: when a natural gas pipeline leaks, natural gas can enter a water circulation system of a heat exchanger body, a gas collection bin is arranged above a water return port of the heat exchanger body, the natural gas leaked into the water passes through a first gas-water separation plate and a second gas-water separation plate, the natural gas and the water flow together to cause gas to flow back, the water continues to flow forward due to inertia, forward liquid is attached to a blocking wall surface and downwards collected to a water outlet due to the action of gravity, the leaked natural gas passes through the first gas-water separation plate and the second gas-water separation plate and then is captured and enters the gas collection bin, the natural gas leakage alarm is matched with a gas sensor to detect the gas in the gas collection bin, the alarm can be given out to remind surrounding personnel when the gas is abnormal in composition, the automatic exhaust valve can be used for exhausting the natural gas in the gas collection bin when a certain amount of gas is accumulated, the automatic exhaust valve is connected to an external collection pipeline, and the natural gas is prevented from diffusing to the surrounding environment, so that the natural gas can not enter the water circulation system and accidents occur.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor. Wherein:
fig. 1 is a structural diagram of a gas leakage catching device of a natural gas dew point heater.
FIG. 2 is a partial structure schematic diagram of a natural gas dew point heater gas leakage capture device.
FIG. 3 is a schematic structural diagram of a first gas-water separation plate and a second gas-water separation plate of the gas leakage catching device of the natural gas dew point heater.
FIG. 4 is a schematic view of a connection structure of a sealing bolt and a sealing block of the natural gas dew point heater gas leakage catching device.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanying the present invention are described in detail below with reference to the accompanying drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, other ways of implementing the invention may be devised different from those described herein, and it will be apparent to those skilled in the art that the invention can be practiced without departing from the spirit and scope of the invention.
Furthermore, the references herein to "one embodiment" or "an embodiment" refer to a particular feature, structure, or characteristic that may be included in at least one implementation of the present invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Example 1
Referring to fig. 1, 2, 3 and 4, in order to provide a first embodiment of the present invention, the embodiment provides a gas leakage catching device for a natural gas dew point heater, which comprises a heating assembly 100 and a catching assembly 200. Through setting up heating element 100 and catching subassembly 200, improved the efficiency of catching to leaking the natural gas, still in time remind personnel in time to discover, in time handle, avoid equipment defect to handle untimely, lead to the natural gas to collect in a large number and turn into the accident.
Specifically, the heating assembly 100 includes a heat exchanger body 101, a support member 102 disposed at the bottom of the heat exchanger body 101, and a fixing member 103 disposed at the bottom of the support member 102. Through setting up support piece 102, convenient to use person installs heat exchanger body 101, through setting up mounting 103, can fix support piece 102 to heat exchanger body 101's stability has been improved, and then improved the stability of catching subassembly 200.
Preferably, the catching assembly 200 comprises a separating member 201 disposed in the inner cavity of the heat exchanger body 101, a gas collecting member 202 disposed at the top of the heat exchanger body 101, a sealing member 203 and an automatic exhaust valve 204 disposed at the top of the gas collecting member 202, a detecting member 205 disposed at the outer side of the gas collecting member 202, an alarm member 206, and a shielding member 207. Can separate the natural gas of heat exchanger body 101 internal leakage through separator 201, improve capture efficiency, can carry out the water conservancy diversion to the natural gas through setting up gas collection piece 202 and collect, through setting up detection piece 205 and alarm piece 206, in time remind personnel in time to discover, in time handle, avoid equipment defect to handle untimely, a large amount of natural gases collect in a large number and make the accident.
When using, through setting up support piece 102, convenient to use person installs heat exchanger body 101, through setting up mounting 103, can fix support piece 102, thereby heat exchanger body 101's stability has been improved, and then the stability of catching subassembly 200 has been improved, can separate the natural gas of heat exchanger body 101 internal leakage through separator 201, the efficiency of catching is improved, can carry out the water conservancy diversion to the natural gas through setting up gas collection piece 202 and collect, through setting up detection piece 205 and alarm piece 206, in time remind personnel in time to discover, in time handle, avoid equipment defect to handle untimely, a large amount of natural gas collects in a large number and brews the accident.
Example 2
Referring to fig. 2, 3 and 4, the present embodiment is based on the second embodiment of the present invention.
Specifically, the separator 201 includes a first gas-water separation plate 201a and a second gas-water separation plate 201b disposed in the inner cavity of the heat exchanger body 101. The natural gas leaked in the heat exchanger body 101 can be separated by arranging the first gas-water separation plate 201a and the second gas-water separation plate 201b, and the capture efficiency is improved.
Preferably, the gas collecting member 202 includes a gas collecting bin 202a disposed at the top of the heat exchanger body 101, and a top cover 202b disposed at the top of the gas collecting bin 202 a. The bottom of the gas collecting bin 202a is communicated with the top of the heat exchanger body 101.
Preferably, the sealing member 203 includes a sealing block 203a disposed on an inner wall of the gas collecting chamber 202a, and a sealing plug 203b disposed in an inner cavity of the sealing block 203 a. The sealing block 203a is fixedly connected with the gas collection bin 202a, the sealing bolt 203b is in threaded connection with the sealing block 203a, and after the top cover 202b covers the top of the gas collection bin 202a, the sealing bolt 203b can penetrate through the top cover 202b and be twisted into the sealing block 203a to fix the top cover 202b, so that the sealing performance between the top cover 202b and the gas collection bin 202a is improved.
Preferably, the sealing member 203 further includes a sealing ring 203c disposed at the bottom of the top cover 202b, and a sealing groove 203d disposed at the top of the gas collecting chamber 202 a. The sealing ring 203c is fixedly connected with the top cover 202b, and after the top cover 202b is covered on the top of the gas collecting bin 202a, the sealing ring 203c can be clamped into the sealing groove 203d, so that the sealing performance between the top cover 202b and the gas collecting bin 202a is further improved.
Preferably, the detecting element 205 includes a natural gas leakage alarm 205a disposed outside the gas collecting chamber 202a, and a gas sensor 205b disposed in the inner cavity of the gas collecting chamber 202 a.
Preferably, the alarm member 206 includes a support frame 206a disposed outside the gas collecting chamber 202a, and an audible and visual alarm 206b disposed on the top of the support frame 206 a. The support frame 206a is fixedly connected with the gas collection bin 202a, because the pressure of a natural gas system is far higher than the pressure of circulating water, when a natural gas pipeline leaks, the natural gas can enter a water circulation system of the heat exchanger body 101, the gas collection bin 202a is arranged above a water return port of the heat exchanger body 101, the natural gas leaking into the water flows away by baffling the gas when flowing together with the water due to different densities of the natural gas and the water after passing through the first gas-water separation plate 201a and the second gas-water separation plate 201b, the water continues to flow forward due to inertia, the forward liquid is attached to a blocking wall surface and downwards converges to a water outlet due to the action of gravity, after passing through the first gas-water separation plate 201a and the second gas-water separation plate 201b, the leaked natural gas is captured into the gas collection bin 202a, the natural gas leakage alarm 205a is matched with the gas sensor 205b to detect the gas in the gas collection bin 202a, the abnormal gas composition can alarm can be given, people around can also pass through the automatic gas alarm 206b when a certain amount of gas is accumulated, the gas in the gas collection bin 202a, the gas can be automatically discharged to the gas collection bin 202a gas collection pipeline, and the natural gas can be automatically discharged to the gas collection environment, and the natural gas can be prevented from entering the gas circulation system from an accident, so that the natural gas pipeline can enter the gas diffusion accident can be avoided.
When the natural gas pipeline leaks in use, natural gas enters the water circulation system of the heat exchanger body 101, the gas collection bin 202a is arranged above the water return port of the heat exchanger body 101, the natural gas leaked into the water passes through the first gas-water separation plate 201a and the second gas-water separation plate 201b, the natural gas flows together with the water due to different densities of the natural gas and the water, the gas flows away in a baffling manner, the water continues to flow forwards due to inertia, the forward liquid is attached to the blocking wall surface and downwards collected to the water outlet due to the gravity effect, the leaked natural gas is captured and enters the gas collection bin 202a after passing through the first gas-water separation plate 201a and the second gas-water separation plate 201b, and the gas in the gas collection bin 202a is detected through the natural gas leakage alarm 205a matched with the gas sensor 205b, the gas composition is abnormal, the alarm reminding can be carried out, surrounding personnel can be reminded through the audible and visual alarm 206b, when a certain amount of gas is accumulated, the natural gas in the gas collection bin 202a is discharged through the automatic exhaust valve 204, the automatic exhaust valve 204 is connected to an external collection pipeline, the natural gas is prevented from diffusing to the surrounding environment, and therefore the natural gas is prevented from entering a water circulation system and causing accidents, the sealing block 203a is fixedly connected with the gas collection bin 202a, the sealing bolt 203b is in threaded connection with the sealing block 203a, after the top cover 202b covers the top of the gas collection bin 202a, the sealing bolt 203b can penetrate through the top cover 202b and be twisted into the sealing block 203a to fix the top cover 202b, and therefore the sealing performance between the top cover 202b and the gas collection bin 202a is improved.
Example 3
Referring to fig. 1, 2, 3 and 4, a third embodiment of the present invention is shown, which is based on the first two embodiments.
Specifically, the supporting member 102 includes a supporting half ring 102a disposed at the bottom of the heat exchanger body 101, and a supporting plate 102b disposed at the bottom of the supporting half ring 102 a. The support half ring 102a is fixedly connected with the heat exchanger body 101, the support plate 102b is fixedly connected with the support half ring 102a, and the support half ring 102a and the support plate 102b are arranged, so that a user can conveniently place the heat exchanger body 101.
Preferably, the fixing member 103 includes fixing blocks 103a disposed at both sides of the supporting plate 102b, and fixing pins 103b disposed in the inner cavities of the fixing blocks 103 a. The fixing block 103a is fixedly connected with the supporting plate 102b, the fixing bolt 103b is in threaded connection with the fixing block 103a, and the device can be fixed by screwing the fixing bolt 103b into an external fixture.
Preferably, the shielding member 207 includes a shielding plate 207a disposed outside the gas collecting chamber 202a, and shielding rings 207b disposed on the top and bottom of the shielding plate 207 a. Protection plate 207a and guard ring 207b all with gas collection storehouse 202a fixed connection, protection plate 207a and guard ring 207b fixed connection have improved the protection effect to gas collection storehouse 202a through setting up protection plate 207a and guard ring 207b.
When the natural gas pipeline leaks, natural gas enters a water circulation system of the heat exchanger body 101, the gas collection bin 202a is arranged above a water return port of the heat exchanger body 101, the natural gas leaked into the water passes through the first gas-water separation plate 201a and the second gas-water separation plate 201b, the natural gas flows together with the water due to different densities of the natural gas and the water, the gas is deflected to flow away, the water continues to have forward speed due to inertia, forward liquid is attached to a blocking wall surface and downwards collected to a water outlet due to the action of gravity, the leaked natural gas is captured into the gas collection bin 202a after passing through the first gas-water separation plate 201a and the second gas-water separation plate 201b, the gas in the gas collection bin 202a is detected through the natural gas leakage alarm 205a in cooperation with the sensor 205b, and alarm is given if the gas composition is abnormal, the gas collection device can also remind surrounding personnel through the audible and visual alarm 206b, when a certain amount of gas is accumulated, the natural gas in the gas collection bin 202a is discharged through the automatic exhaust valve 204, the automatic exhaust valve 204 is connected to an external collection pipeline to prevent the natural gas from diffusing to the surrounding environment, so that accidents caused by the natural gas entering a water circulation system are avoided, the sealing block 203a is fixedly connected with the gas collection bin 202a, the sealing bolt 203b is in threaded connection with the sealing block 203a, after the top cover 202b is covered on the top of the gas collection bin 202a, the sealing bolt 203b can penetrate through the top cover 202b and be twisted into the sealing block 203a to fix the top cover 202b, so that the sealing performance between the top cover 202b and the gas collection bin 202a is improved, a user can place the heat exchanger body 101 conveniently by arranging the support half ring 102a and the support plate 102b, and the device can be fixed by twisting the fixing bolt 103b into an external fixture.
It should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.

Claims (10)

1. The utility model provides a natural gas dew point heater gas leakage trapping apparatus which characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
the heating assembly (100) comprises a heat exchanger body (101), a support piece (102) arranged at the bottom of the heat exchanger body (101), and a fixing piece (103) arranged at the bottom of the support piece (102); and the number of the first and second groups,
the catching assembly (200) comprises a separating piece (201) arranged in an inner cavity of the heat exchanger body (101), a gas collecting piece (202) arranged at the top of the heat exchanger body (101), a sealing piece (203) and an automatic exhaust valve (204) arranged at the top of the gas collecting piece (202), a detecting piece (205) arranged at the outer side of the gas collecting piece (202), an alarming piece (206) and a shielding piece (207).
2. The natural gas dew point heater gas leak capture device of claim 1, wherein: the support (102) comprises a support half ring (102 a) arranged at the bottom of the heat exchanger body (101), and a support plate (102 b) arranged at the bottom of the support half ring (102 a).
3. The natural gas dew point heater gas leak capture device of claim 2, wherein: the fixing piece (103) comprises fixing blocks (103 a) arranged on two sides of the supporting plate (102 b) and fixing bolts (103 b) arranged in the inner cavity of the fixing blocks (103 a).
4. The natural gas dew point heater gas leak capture device of claim 3, wherein: the separator (201) is including setting up in first gas-water separation board (201 a) and second gas-water separation board (201 b) of heat exchanger body (101) inner chamber.
5. The natural gas dew point heater gas leak trap as claimed in any one of claims 1, 2 and 4, wherein: the gas collecting piece (202) comprises a gas collecting bin (202 a) arranged at the top of the heat exchanger body (101), and a top cover (202 b) arranged at the top of the gas collecting bin (202 a).
6. The natural gas dew point heater gas leak capture device of claim 5, wherein: the sealing piece (203) comprises a sealing block (203 a) arranged on the inner wall of the gas collecting bin (202 a) and a sealing bolt (203 b) arranged in the inner cavity of the sealing block (203 a).
7. The natural gas dew point heater gas leak capture device of claim 6, wherein: the sealing piece (203) further comprises a sealing ring (203 c) arranged at the bottom of the top cover (202 b), and a sealing groove (203 d) arranged at the top of the gas collecting bin (202 a).
8. The natural gas dew point heater gas leak capture device of claim 6 or 7, wherein: the detection piece (205) comprises a natural gas leakage alarm (205 a) arranged outside the gas collection bin (202 a) and a gas sensor (205 b) arranged in an inner cavity of the gas collection bin (202 a).
9. The natural gas dew point heater gas leak capture device of claim 8, wherein: the alarm piece (206) comprises a support frame (206 a) arranged on the outer side of the gas collection bin (202 a), and an audible and visual alarm (206 b) arranged at the top of the support frame (206 a).
10. The natural gas dew point heater gas leak capture device of claim 9, wherein: the protection part (207) comprises a protection plate (207 a) arranged on the outer side of the gas collection bin (202 a), and protection rings (207 b) arranged at the top and the bottom of the protection plate (207 a).
CN202221033851.2U 2022-04-29 2022-04-29 Gas leakage capturing device of natural gas dew point heater Active CN218002300U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202221033851.2U CN218002300U (en) 2022-04-29 2022-04-29 Gas leakage capturing device of natural gas dew point heater

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202221033851.2U CN218002300U (en) 2022-04-29 2022-04-29 Gas leakage capturing device of natural gas dew point heater

Publications (1)

Publication Number Publication Date
CN218002300U true CN218002300U (en) 2022-12-09

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202221033851.2U Active CN218002300U (en) 2022-04-29 2022-04-29 Gas leakage capturing device of natural gas dew point heater

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CN (1) CN218002300U (en)

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