Automatic natural gas odorizing machine

Abstract

The utility model discloses a kind of natural gas automatic odorizing machines, including the odorizing barrel of setting, valve is installed on the odorizing barrel, the valve input end is connected with natural gas pipeline through gas inlet pipeline, the valve output end is connected in the inside of odorizing barrel through transmission pipeline, the rotating shaft is arranged in the inside of odorizing barrel, sleeve is sleeved on the rotating shaft outside, the transmission pipeline is connected with sleeve inner cavity, the sleeve inner cavity is connected with rotating shaft inner cavity, the rotating shaft bottom end is equipped with gas outlet hole. The natural gas automatic odorizing machine, gas inlet pipeline is directly and accurately docked with natural gas main pipeline, natural gas is adjusted flow by valve, avoid because of the fluctuation of air intake volume leads to odorizing concentration instability, improve the controllability of odorizing process, guarantee the stability of later odorizing effect, gas outlet hole is located inside odorant, substantially increase gas-liquid contact area, overall structure is simple, reduce the problem that the maintenance difficulty increases due to the setting complex structure.

Description

Technical Field

[0001] This utility model relates to the technical field of natural gas odorization, specifically to an automatic natural gas odorization machine. Background Technology

[0002] Natural gas is mainly composed of methane and is a clean energy source that produces fewer pollutants when burned. However, since natural gas itself is colorless and odorless, odorants are usually added to ensure that leaks can be detected in time. Existing natural gas odorization equipment has certain problems in use, especially when the natural gas flow rate is high. The odorant may not be able to mix evenly with the natural gas, and uneven mixing may result in the odorant concentration in the natural gas in some areas being too low.

[0003] To overcome the aforementioned deficiencies, the prior art (Chinese patent CN218544035U, published on February 28, 2023) discloses an automatic natural gas odorization device. The key technical features include a mixing tank, which is cylindrical; an inlet pipe connected near the top of the mixing tank, guiding natural gas tangentially into the mixing tank; an outlet pipe connected near the bottom of the mixing tank, used to discharge the odorized natural gas; an odorization pipe connected near the top of the mixing tank, used to introduce gaseous odorant into the mixing tank; a rotating shaft disposed within the mixing tank and coaxially with it, rotatably connected to the mixing tank; and stirring blades fixedly connected to the outside of the rotating shaft and located within the mixing tank. The natural gas is introduced tangentially into the mixing tank, causing it to flow spirally within the tank, and the natural gas drives the stirring blades to rotate, thereby ensuring thorough mixing of the natural gas and the odorant.

[0004] Existing natural gas odorization equipment mixes natural gas and odorant by rotating stirring blades. However, in actual operation, the complex structure and multiple components of the equipment increase the difficulty of maintenance. Fluctuations in natural gas flow and pressure can have a significant impact on the odorization effect, affecting not only the stability of the odorant but also potentially leading to insufficient odor concentration in the leak area, thus missing the opportunity for early leak warnings.

[0005] To address the aforementioned issues, there is an urgent need for innovative design based on the existing automatic natural gas odorizer. Therefore, we proposed that the automatic natural gas odorizer can effectively solve these problems. Utility Model Content

[0006] The purpose of this utility model is to provide an automatic natural gas odorizer to solve the problem mentioned in the background art. Currently, natural gas odorizers on the market achieve mixing of natural gas and odorant by rotating stirring blades. However, in actual operation, the complex structure and multiple components of the equipment increase the difficulty of maintenance. Furthermore, fluctuations in natural gas flow and pressure can have a significant impact on the odorization effect, affecting not only the stability of the odorant but also potentially leading to insufficient odor concentration in the leak area, thus missing the opportunity for early leak warning.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an automatic natural gas odorizer, comprising an odorizer tank, a valve installed on the odorizer tank, the valve input end being connected to a natural gas pipeline via an inlet pipe, the valve output end being connected to the inside of the odorizer tank via a transmission pipe, a rotating shaft being provided inside the odorizer tank, a sleeve being fitted around the rotating shaft, the transmission pipe being connected to the inner cavity of the sleeve, the inner cavity of the sleeve being connected to the inner cavity of the rotating shaft, and an outlet hole being provided at the bottom end of the rotating shaft.

[0008] Preferably, a drive box is installed on the odor-adding bucket, a first motor is installed inside the drive box, and the rotating shaft passes through the top of the odor-adding bucket and is connected to the output end of the first motor.

[0009] Preferably, the outer side of the rotating shaft is provided with threaded blades, and the top of the odor-adding tank is equipped with an exhaust pipe, which is connected to a natural gas pipeline.

[0010] Preferably, a monitoring box is provided on the side of the odor-adding tank, and the bottom of the odor-adding tank is connected to the bottom of the monitoring box through a conveying pipe.

[0011] Preferably, a storage box is installed on the side of the monitoring box, and an odorant is placed inside the storage box.

[0012] Preferably, a conveying assembly is provided on the side of the storage box. The conveying assembly includes an operation box installed on the side of the storage box. A second motor is installed inside the operation box. The second motor is connected through the inside of the peristaltic member. The peristaltic member is installed on the peristaltic seat.

[0013] Preferably, the peristaltic member has a first pipe on its side, and one end of the first pipe is connected to the inside of the storage box.

[0014] Preferably, a liquid level sensor is connected to the other end of the first pipe, the liquid level sensor monitoring ball is located inside the monitoring box, and the liquid level sensor is connected to the odor-adding tank through a second pipe.

[0015] Compared with existing technologies, the beneficial effects of this utility model are as follows: This automatic natural gas odorizer has its inlet pipe directly and precisely connected to the main natural gas pipeline. The natural gas flow rate is regulated by valves, avoiding instability in odor concentration due to fluctuations in the inlet volume, thus improving the controllability of the odorization process and ensuring the stability of the odorization effect in the later stages. The outlet is located inside the odorant, significantly increasing the gas-liquid contact area. The overall structure is simple, reducing the problem of increased maintenance difficulty caused by complex structures. The specific details are as follows:

[0016] (1) The gas inlet pipe is precisely connected to the main natural gas pipeline to ensure that there is no leakage when natural gas is introduced. The valve can flexibly adjust the flow rate and control the amount of natural gas entering the odorization tank according to actual needs, avoiding the problem of fluctuation in odorization concentration caused by the large or small amount of gas inlet, and ensuring that the odorization concentration of each cubic meter of natural gas meets the standard.

[0017] (2) The end of the transmission pipeline is connected to the inner cavity of the sleeve. Natural gas is sprayed out from the evenly distributed gas outlets at the bottom through the inner cavity of the rotating shaft. The gas outlets face the inside of the odorant, which greatly increases the gas-liquid contact area. The first motor drives the rotating shaft and the outer threaded blades to rotate, so that the natural gas and odorant are mixed in all directions in the odorizing tank, improving the stability and consistency of the odorizing quality.

[0018] (3) The odorizing tank is connected to the monitoring box through the delivery pipe, and the liquid levels of the two are kept consistent, which effectively eliminates the interference of liquid level fluctuations caused by stirring in the odorizing tank on the monitoring results, making the liquid level data obtained by the liquid level sensor through the detection ball more accurate. In addition, the monitoring box is independent of the odorizing tank, and the installation, debugging and maintenance of the liquid level monitoring components do not require disassembling the relevant structure of the odorizing tank, which reduces the interference to the odorizing process.

[0019] (4) When the liquid level of the odorant in the odorant tank is lower than the set threshold, the liquid level sensor automatically triggers the conveying component to work, eliminating the need for manual inspection to judge the liquid level and realizing the full automation of odorant replenishment. The second motor drives the peristaltic component to operate, which can accurately control the amount of odorant drawn from the storage box and prevent insufficient replenishment from causing incomplete mixing.

[0020] (5) The gas inlet pipe and the gas outlet pipe are connected to the main pipeline respectively to ensure smooth natural gas transportation. Natural gas odorized by this equipment can be detected in time if a leak occurs, which effectively avoids the difficulty in detecting leaks due to the colorless and odorless nature of natural gas, and ensures the safety of residential and industrial gas use. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the overall side view structure of this utility model;

[0023] Figure 3This is a schematic diagram of the internal structure of the odor-adding bucket of this utility model;

[0024] Figure 4 This is a schematic diagram of the drive box and the first motor structure of this utility model;

[0025] Figure 5 This is a schematic diagram of the cross-sectional structure of the sleeve of this utility model;

[0026] Figure 6 This is a schematic diagram of the disassembled structure of the second motor and the peristaltic seat of this utility model;

[0027] Figure 7 This is a schematic diagram of the connection structure between the delivery pipeline and the monitoring box of this utility model.

[0028] In the diagram: 1. Odor-adding tank; 2. Air inlet pipe; 3. Valve; 4. Transmission pipe; 5. Sleeve; 6. Rotating shaft; 7. Air outlet; 8. Drive box; 9. First motor; 10. Threaded blade; 11. Air outlet pipe; 12. Conveying pipe; 13. Monitoring box; 14. Control box; 15. Second motor; 16. Peristaltic seat; 17. Peristaltic component; 18. First pipe; 19. Storage box; 20. Liquid level sensor; 21. Second pipe. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Example 1: In this example, the flow rate of natural gas is regulated by valve 3 to control the amount of natural gas entering the odorization tank 1, avoiding instability in the odorization concentration due to fluctuations in the gas intake, improving the controllability of the odorization process, and ensuring the stability of the odorization effect in the later stages. Figures 1-5The technical solution shown includes an odorization tank 1 with a valve 3 installed on it. The input end of the valve 3 is connected to a natural gas pipeline via an inlet pipe 2, and the output end of the valve 3 is connected to the inside of the odorization tank 1 via a transmission pipe 4. A rotating shaft 6 is installed inside the odorization tank 1, and a sleeve 5 is fitted around the outside of the rotating shaft 6. The transmission pipe 4 is connected to the inner cavity of the sleeve 5, and the inner cavity of the sleeve 5 is connected to the inner cavity of the rotating shaft 6. An outlet hole 7 is provided at the bottom of the rotating shaft 6. External natural gas first enters the equipment through the inlet pipe 2, which is directly and precisely connected to the main natural gas pipeline. The flow rate of the natural gas is regulated by the valve 3 to control the amount of natural gas entering the odorization tank 1, avoiding instability in the odorization concentration due to fluctuations in the inlet flow, improving the controllability of the odorization process, and ensuring the subsequent... To ensure the stability of the odorization effect, natural gas is then transported to the odorization tank 1 through transmission pipe 4. The end of transmission pipe 4 is connected to the inner cavity of sleeve 5 inside the odorization tank 1, ensuring that the natural gas enters the odorization tank 1 accurately. Since sleeve 5 is connected to the inner cavity of rotating shaft 6, the natural gas will further flow into the interior of rotating shaft 6 and finally be evenly sprayed into the odorant inside the odorization tank 1 through the vent hole 7 opened at the bottom of rotating shaft 6. The vent hole 7 is evenly distributed and faces the interior of the odorant, greatly increasing the gas-liquid contact area. The natural gas that has been odorized flows back to the main natural gas pipeline through the vent pipe 11 at the top of odorization tank 1 and enters the subsequent transportation stage, realizing the normal supply of natural gas after odorization. The overall structure is simple, reducing the problem of increased maintenance difficulty caused by setting up a complex structure.

[0031] Example 2: In this example, the threaded blades 10 on the outer side of the rotating shaft 6 rotate synchronously with the shaft to stir the mixture in the odorizing tank 1, ensuring that the natural gas and odorant are fully mixed and avoiding insufficient or excessive odor concentration in certain areas. Specifically, as follows... Figures 2-4As shown, a drive box 8 is installed on the odor-adding tank 1, and a first motor 9 is installed inside the drive box 8. A rotating shaft 6 passes through the top of the odor-adding tank 1 and is connected to the output end of the first motor 9. A threaded blade 10 is provided on the outer side of the rotating shaft 6. An exhaust pipe 11 is installed on the top of the odor-adding tank 1, and the exhaust pipe 11 is connected to a natural gas pipe. A monitoring box 13 is installed on the side of the odor-adding tank 1, and the bottom of the odor-adding tank 1 is connected to the bottom of the monitoring box 13 through a delivery pipe 12. A storage box 19 is installed on the side of the monitoring box 13, and the storage box 19 contains odorant. When the first motor 9 inside the drive box 8 is turned on, the first motor 9 drives the rotating shaft 6 passing through the top of the odor-adding tank 1 to rotate. The threaded blade 10 on the outer side of the rotating shaft 6... The blades 10 rotate synchronously with the shaft to stir the mixture in the odorization tank 1, ensuring that the natural gas and odorant are fully mixed and avoiding insufficient or excessive odorization concentration in some areas. The spiral structure of the threaded blades 10 can drive the mixture to tumble up and down, improving the uniformity of odorization quality. The bottom side of the odorization tank 1 is connected to the bottom side of the monitoring box 13 through the conveying pipe 12. The odorant liquid level in the odorization tank 1 is consistent with the liquid level in the monitoring box 13, which facilitates subsequent monitoring. The connection design can eliminate the interference of liquid level fluctuations caused by stirring in the odorization tank 1 on the monitoring results, making the monitoring data more accurate. At the same time, the monitoring box 13 is independent of the odorization tank 1, which facilitates the installation and maintenance of the liquid level monitoring components and reduces the difficulty of equipment maintenance.

[0032] Example 3: In this example, the peristaltic element 17 draws a fixed amount of odorant from the storage tank 19 through the first pipe 18 and transports it to the odor-adding tank 1 through the second pipe 21 to replenish the consumed odorant and maintain a stable liquid level in the odor-adding tank 1. Specifically, as follows... Figure 3 , Figure 6 and Figure 7As shown, a conveying assembly is provided on the side of the storage tank 19. The conveying assembly includes an operation box 14 installed on the side of the storage tank 19. A second motor 15 is installed inside the operation box 14. The second motor 15 is connected through the peristaltic member 17. The peristaltic member 17 is installed on the peristaltic seat 16. A first pipe 18 is provided on the side of the peristaltic member 17. One end of the first pipe 18 is connected to the inside of the storage tank 19, and the other end of the first pipe 18 is connected to a liquid level sensor 20. The detection ball of the liquid level sensor 20 is located inside the monitoring box 13. The liquid level sensor 20 is connected to the odorizing tank 1 through the second pipe 21. When the liquid level in the odorizing tank 1 drops due to the consumption of odorant through mixing, the detection ball inside the monitoring box 13 transmits information to the liquid level sensor 20. When the liquid level is lower than a set threshold, the liquid level sensor 20... The delivery component is triggered to operate, and the second motor 15 inside the control box 14 is turned on. The threshold trigger function of the liquid level sensor 20 realizes the automation of odorant replenishment without manual operation, reducing labor costs. The second motor 15 drives the peristaltic component 17 installed on the peristaltic seat 16 to operate. The peristaltic component 17 adopts a flexible delivery method, which can accurately control the amount of odorant delivered. The peristaltic component 17 draws a quantitative amount of odorant from the storage box 19 through the first pipe 18 and delivers it to the odorizing tank 1 through the second pipe 21 to replenish the consumed odorant, maintain the stable liquid level in the odorizing tank 1, and ensure that the odorizing process continues. This achieves continuous and stable operation of the odorizing process, ensuring the safety and reliability of natural gas transportation. The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0033] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An automatic natural gas odorizer, comprising an odorizer tank (1), characterized in that, A valve (3) is installed on the odor-adding tank (1). The input end of the valve (3) is connected to the natural gas pipeline through the gas inlet pipe (2). The output end of the valve (3) is connected to the inside of the odor-adding tank (1) through the transmission pipe (4). A rotating shaft (6) is provided inside the odor-adding tank (1). A sleeve (5) is sleeved on the outside of the rotating shaft (6). The transmission pipe (4) is connected to the inner cavity of the sleeve (5). The inner cavity of the sleeve (5) is connected to the inner cavity of the rotating shaft (6). An air outlet (7) is opened at the bottom end of the rotating shaft (6).

2. The automatic natural gas odorizer according to claim 1, characterized in that: The odor-adding tank (1) is equipped with a drive box (8), and a first motor (9) is installed inside the drive box (8). The rotating shaft (6) passes through the top of the odor-adding tank (1) and is connected to the output end of the first motor (9).

3. The automatic natural gas odorizer according to claim 2, characterized in that: The rotating shaft (6) is provided with a threaded blade (10) on the outside, and the odor-adding tank (1) is equipped with an exhaust pipe (11) on the top, which is connected to a natural gas pipeline.

4. The automatic natural gas odorizer according to claim 1, characterized in that: A monitoring box (13) is provided on the side of the odor-adding tank (1), and the bottom of the odor-adding tank (1) is connected to the bottom of the monitoring box (13) through a conveying pipe (12).

5. The automatic natural gas odorizer according to claim 4, characterized in that: The monitoring box (13) is equipped with a storage box (19) on its side, and the storage box (19) contains an odorant.

6. The automatic natural gas odorizer according to claim 5, characterized in that: The storage box (19) is provided with a conveying assembly on its side. The conveying assembly includes an operation box (14) installed on the side of the storage box (19). A second motor (15) is installed inside the operation box (14). The second motor (15) is connected through the inside of the peristaltic member (17). The peristaltic member (17) is installed on the peristaltic seat (16).

7. The automatic odorizing machine for natural gas according to claim 6, characterized in that: The peristaltic member (17) has a first pipe (18) on its side, and one end of the first pipe (18) is connected to the inside of the storage box (19).

8. The automatic natural gas odorizer according to claim 7, characterized in that: The other end of the first pipe (18) is connected to a liquid level sensor (20). The liquid level sensor (20) has a monitoring ball located inside the monitoring box (13). The liquid level sensor (20) is connected to the odor-adding tank (1) through a second pipe (21).

Images