Natural gas odorant adding device

Abstract

The utility model discloses a natural gas odorant adding device, and relates to the technical field of natural gas adding. Comprising a three-way pipe, a gas pipe is fixedly installed on the upper surface of the three-way pipe, a monitoring mechanism is installed on the gas pipe, a gas inlet pipe is fixedly installed on the lower surface of the three-way pipe, an adjusting mechanism is installed on the gas inlet pipe, the left end of the gas inlet pipe is communicated with a gas outlet of a gasifier, and a liquid inlet of the gasifier is communicated with an extraction mechanism. An air inlet of the extraction mechanism is communicated with the liquid filter, a liquid injection mechanism is installed at the position, close to the left side, of the upper surface of the liquid storage tank, a controller is fixedly installed on the front side face of the liquid storage tank, and a static mixer is fixedly installed on the right side face of the three-way pipe. According to the utility model, the automatic adding of the odorant is realized, the adding amount of the odorant can be adjusted according to the flow of natural gas, the mixing function of the odorant and the natural gas is increased, the adding effect of the odorant is better, the automatic adding function of the liquid storage tank is increased, manual adding is not needed, and the use is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of natural gas addition, in particular to a natural gas odorant addition device. Background Art

[0002] Natural gas is a clean, safe, efficient and environmentally friendly energy source, which is widely used in life, industry and transportation. In order to facilitate transportation and use, natural gas is often compressed into liquid natural gas or compressed natural gas during the transmission and distribution process. Natural gas itself is colorless and odorless. If it leaks, it is difficult for people to detect it, which can easily cause dangers such as fire and explosion. In order to enhance the safety of natural gas, a certain concentration of odorizer (usually hydrogen sulfide or methyl mercaptan, etc.) is usually added to the natural gas so that people can detect the leakage of natural gas in time to avoid accidents.

[0003] In the prior art, the addition of natural gas odorant is mainly achieved by setting an odorant adding device at an appropriate position of the gas pipeline network. During use, the conventional natural gas odorant adding device cannot add an appropriate amount of odorant according to the flow rate of natural gas, and lacks a mixing function, resulting in inaccurate odorant filling. At the same time, during use, the odorant storage tank cannot add odorant by itself, and requires regular inspections, which is inconvenient to use. Utility Model Content

[0004] The utility model provides a natural gas odorant adding device to solve the problems in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a natural gas odorant addition device, comprising a three-way pipe, a gas pipe is fixedly installed on the upper surface of the three-way pipe, a monitoring mechanism is installed on the gas pipe, an air intake pipe is fixedly installed on the lower surface of the three-way pipe, an adjusting mechanism is installed on the air intake pipe, the left end of the air intake pipe is connected with the gas outlet of the vaporizer, the liquid inlet of the vaporizer is connected with the extraction mechanism, the air inlet of the extraction mechanism is connected with the liquid filter, the liquid inlet of the liquid filter is connected with the liquid outlet of the liquid storage tank, a liquid injection mechanism is installed on the upper surface of the liquid storage tank near the left side, a controller is fixedly installed on the front side of the liquid storage tank, a static mixer is fixedly installed on the right side of the three-way pipe, and a pipeline is arranged on the right side of the static mixer.

[0006] Furthermore, the monitoring mechanism includes a flow sensor and a first check valve, and the flow sensor and the first check valve are sequentially installed in series on the gas pipe from left to right.

[0007] Furthermore, the regulating mechanism includes a first control valve, an electric regulating valve and a second check valve, and the first control valve, the electric regulating valve and the second check valve are sequentially installed in series on the intake pipe from left to right.

[0008] Furthermore, the extraction mechanism includes a pump body and a connecting pipe. The pump body is installed on the upper surface of the liquid filter. The liquid inlet and outlet of the pump body are respectively connected to the liquid outlet of the liquid filter and the liquid inlet of the vaporizer through the connecting pipe.

[0009] Furthermore, the liquid injection mechanism includes a liquid inlet pipe, a second control valve and a liquid level sensor. The liquid inlet pipe is installed on the upper surface of the liquid storage tank. The second control valve is arranged on the liquid inlet pipe. The liquid level sensor is embedded in the upper side wall of the liquid storage tank.

[0010] Furthermore, the controller is electrically connected to the flow sensor, the first control valve, the electric regulating valve, the pump body, the second control valve and the liquid level sensor respectively.

[0011] Compared with the prior art, the utility model provides a natural gas odorant adding device, which has the following beneficial effects:

[0012] 1. The natural gas odorant adding device monitors the flow of natural gas in the gas pipe by setting a monitoring mechanism and feeds back the information to the controller. The controller adjusts the amount of odorant added in the intake pipe through the regulating mechanism to achieve automatic odorant addition, and can adjust the amount of odorant added according to the flow of natural gas. At the same time, the static mixer makes the two better mixed, so that the odorant addition effect is better.

[0013] 2. The natural gas odorant adding device monitors the odorant liquid level in the liquid storage tank by setting a liquid injection mechanism, and feeds back the information to the controller. The controller enables the liquid injection mechanism to automatically inject, thereby increasing the automatic adding function of the liquid storage tank, eliminating the need for manual addition and facilitating use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 This is a schematic diagram of a control system of the present utility model.

[0016] In the figure: 1. three-way pipe; 2. gas pipe; 3. monitoring mechanism; 301. flow sensor; 302. first check valve; 4. air inlet pipe; 5. regulating mechanism; 501. first control valve; 502. electric regulating valve; 503. second check valve; 6. gasifier; 7. extraction mechanism; 701. pump body; 702. connecting pipe; 8. liquid filter; 9. liquid storage tank; 10. liquid injection mechanism; 101. liquid inlet pipe; 102. second control valve; 103. liquid level sensor; 11. controller; 12. static mixer; 13. pipeline. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] See also Figure 1 and Figure 2 The utility model discloses a natural gas odorant adding device, comprising a three-way pipe 1, a gas pipe 2 is fixedly installed on the upper surface of the three-way pipe 1, a monitoring mechanism 3 is installed on the gas pipe 2, an air inlet pipe 4 is fixedly installed on the lower surface of the three-way pipe 1, an adjusting mechanism 5 is installed on the air inlet pipe 4, the left end of the air inlet pipe 4 is connected with the gas outlet of a vaporizer 6, the liquid inlet of the vaporizer 6 is connected with an extraction mechanism 7, the air inlet of the extraction mechanism 7 is connected with a liquid filter 8, the liquid inlet of the liquid filter 8 is connected with the liquid outlet of a liquid storage tank 9, a liquid injection mechanism 10 is installed on the upper surface of the liquid storage tank 9 near the left side, a controller 11 is fixedly installed on the front side of the liquid storage tank 9, a static mixer 12 is fixedly installed on the right side of the three-way pipe 1, and a pipeline 13 is arranged on the right side of the static mixer 12.

[0019] Specifically, the monitoring mechanism 3 includes a flow sensor 301 and a first check valve 302 , and the flow sensor 301 and the first check valve 302 are sequentially installed in series on the gas pipe 2 from left to right.

[0020] In this embodiment, the flow sensor 301 monitors the flow of natural gas in the gas pipe 2, and the first check valve 302 prevents the natural gas from flowing back.

[0021] Specifically, the regulating mechanism 5 includes a first control valve 501 , an electric regulating valve 502 and a second check valve 503 , and the first control valve 501 , the electric regulating valve 502 and the second check valve 503 are sequentially installed in series on the intake pipe 4 from left to right.

[0022] In this embodiment, the first control valve 501 is opened to allow the odorant to flow to the three-way pipe 1 through the intake pipe 4, and the flow rate of the odorant in the intake pipe 4 is adjusted by adjusting the size of the electric regulating valve 502.

[0023] Specifically, the extraction mechanism includes a pump body 701 and a connecting pipe 702. The pump body 701 is installed on the upper surface of the liquid filter 8. The liquid inlet and outlet of the pump body 701 are respectively connected to the liquid outlet of the liquid filter 8 and the liquid inlet of the vaporizer 6 through the connecting pipe 702.

[0024] In this embodiment, the pump body 701 pumps the odorant into the gasifier 6 through the connecting pipe 702 .

[0025] Specifically, the liquid injection mechanism 10 includes a liquid inlet pipe 101, a second control valve 102 and a liquid level sensor 103. The liquid inlet pipe 101 is installed on the upper surface of the liquid storage tank 9. The second control valve 102 is provided on the liquid inlet pipe 101. The liquid level sensor 103 is embedded in the upper side wall of the liquid storage tank 9.

[0026] In this embodiment, the liquid level sensor 103 monitors the amount of odorant in the liquid storage tank 9. When the liquid level sensor 103 detects that the amount of odorant in the liquid storage tank 9 is lower than the set value, the information is fed back to the controller 11. The controller 11 opens the second control valve 102 to allow the external odorant to flow into the liquid storage tank 9 through the liquid inlet pipe 101, thereby realizing automatic liquid injection.

[0027] Specifically, the controller 11 is electrically connected to the flow sensor 301 , the first control valve 501 , the electric regulating valve 502 , the pump body 701 , the second control valve 102 and the liquid level sensor 103 , respectively.

[0028] In this embodiment, the controller 11 controls the opening and closing of the flow sensor 301 , the first control valve 501 , the electric regulating valve 502 , the pump body 701 , the second control valve 102 and the liquid level sensor 103 .

[0029] When in use, the gas pipe 2 is connected to the pipeline 13 and the main gas pipe, the gas enters through the gas pipe 2, and flows to the static mixer 12 through the three-way pipe 1, the flow rate of the natural gas in the gas pipe 2 is monitored by the flow sensor 301 in the monitoring mechanism 3, and the information is fed back to the controller 11, the first check valve 302 prevents the natural gas from flowing back, the controller 11 opens the first control valve 501 in the regulating mechanism 5, and according to the flow of the gas, opens the electric regulating valve 502 to a corresponding size, the pump body 701 in the extraction mechanism 7 draws the odorant into the gasifier 6 through the connecting pipe 702, and the liquid filter 8 filters the impurities in the solid of the odorant, and the odorant is added. The odorant flows to the three-way pipe 1 through the air inlet pipe 4, so that an appropriate amount of odorant flows into the static mixer 12, thereby realizing automatic addition of the odorant, and being able to adjust the amount of odorant added according to the flow rate of natural gas, thereby increasing the mixing function of the two and making the odorant addition effect better. The amount of odorant in the liquid storage tank 9 is monitored by the liquid level sensor 103 in the liquid injection mechanism 10. When the liquid level sensor 103 detects that the amount of odorant in the liquid storage tank 9 is lower than the set value, the information is fed back to the controller 11. The controller 11 opens the second control valve 102, so that the external odorant flows into the liquid storage tank 9 through the liquid inlet pipe 101, thereby realizing automatic injection, without manual addition, and facilitating use.

[0030] In summary, the natural gas odorant addition device realizes automatic addition of odorant, and can adjust the amount of odorant added according to the flow rate of natural gas, increase the mixing function of the two, make the odorant addition effect better, and at the same time increase the automatic addition function of the liquid storage tank 9, without manual addition, which is convenient for use.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A natural gas odorant adding device, comprising a three-way pipe (1), characterized in that: A gas pipe (2) is fixedly mounted on the upper surface of the three-way pipe (1), a monitoring mechanism (3) is mounted on the gas pipe (2), an air intake pipe (4) is fixedly mounted on the lower surface of the three-way pipe (1), an adjusting mechanism (5) is mounted on the air intake pipe (4), a left end of the air intake pipe (4) is connected to an air outlet of a vaporizer (6), a liquid inlet of the vaporizer (6) is connected to an extraction mechanism (7), an air inlet of the extraction mechanism (7) is connected to a liquid filter (8), a liquid inlet of the liquid filter (8) is connected to an outlet of a liquid storage tank (9), a liquid injection mechanism (10) is mounted on the upper surface of the liquid storage tank (9) near the left side, a controller (11) is fixedly mounted on the front side of the liquid storage tank (9), a static mixer (12) is fixedly mounted on the right side of the three-way pipe (1), and a pipeline (13) is arranged on the right side of the static mixer (12).

2. A natural gas odorant adding device according to claim 1, characterized in that: The monitoring mechanism (3) comprises a flow sensor (301) and a first check valve (302), and the flow sensor (301) and the first check valve (302) are sequentially installed in series on the gas pipe (2) from left to right.

3. A natural gas odorant adding device according to claim 1, characterized in that: The regulating mechanism (5) comprises a first control valve (501), an electric regulating valve (502) and a second check valve (503), wherein the first control valve (501), the electric regulating valve (502) and the second check valve (503) are sequentially installed in series on the intake pipe (4) from left to right.

4. A natural gas odorant adding device according to claim 1, characterized in that: The extraction mechanism comprises a pump body (701) and a connecting pipe (702); the pump body (701) is mounted on the upper surface of the liquid filter (8); the liquid inlet and outlet of the pump body (701) are respectively connected to the liquid outlet of the liquid filter (8) and the liquid inlet of the vaporizer (6) through the connecting pipe (702).

5. A natural gas odorant adding device according to claim 1, characterized in that: The liquid injection mechanism (10) comprises a liquid inlet pipe (101), a second control valve (102) and a liquid level sensor (103); the liquid inlet pipe (101) is installed on the upper surface of the liquid storage tank (9); the second control valve (102) is arranged on the liquid inlet pipe (101); and the liquid level sensor (103) is embedded on the upper side wall of the liquid storage tank (9).

6. A natural gas odorant adding device according to claim 1, characterized in that: The controller (11) is electrically connected to the flow sensor (301), the first control valve (501), the electric regulating valve (502), the pump body (701), the second control valve (102) and the liquid level sensor (103) respectively.

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