A high efficiency atomizing device for natural gas odorants

Abstract

The utility model provides a kind of high-efficiency atomization device for natural gas odorant, comprising: odorizing box;Liquid spraying component, at least part of liquid spraying component is located in odorizing box;Liquid spraying component is used to deliver odorant to the inside of odorizing box;Agitating component, agitating component is rotatably arranged in odorizing box;Agitating component includes separation part and agitating part, by setting agitating component with separation part and agitating part, separation part can carry out secondary separation to the incomplete gasification odorant droplet that liquid spraying component sprays, and agitating part can strongly agitate mixed natural gas and gasified odorant;The scheme effectively solves the problem that odorant is not evenly gasified and is easy to form local concentration too high under low-temperature or low-flow-rate working condition, ensures the uniform dispersion of odorant in natural gas, improves odorizing efficiency and reliability.

Description

Technical Field

[0001] This utility model relates to the field of natural gas transportation technology, specifically to a high-efficiency atomizing device for natural gas odorant. Background Technology

[0002] In natural gas transmission and distribution systems, because natural gas itself is colorless and odorless, leaks are difficult to detect and can easily lead to safety accidents such as fires, explosions, or asphyxiation. To ensure gas safety, odorants with strong, pungent odors must be added before natural gas enters the pipeline network. Tetrahydrothiophene (THT) or tert-butyl mercaptan (TBM) are commonly used as odorants so that they can be detected by human smell when their concentration reaches 20% of the lower explosive limit. To make natural gas leaks easier to detect, odorants need to be added to the natural gas through natural gas odorization devices. However, existing natural gas odorization devices often require shutting off when adding odorants. When equipment is shut down, odorization of natural gas cannot be performed simultaneously with the replenishment of odorant. A search revealed a natural gas odorization device disclosed in prior art announcement number CN214700305U. This device connects its inlet and outlet ports to a natural gas pipeline. Natural gas enters the lower part of the odorization tank through the inlet port and flows upwards, exiting through the outlet port at the top of the casing. During this process, a water pump continuously draws odorant from the bottom of the odorization tank and sprays it from the top through nozzles. In this way, the natural gas comes into contact with the odorant, thus odorizing it. When it is necessary to replenish odorant into the odorization tank, the first valve of the supply pipe is opened, and the odorant in the storage tank automatically flows into the odorization tank. Then, the first valve is closed, and the second valve is opened, allowing odorant to be added to the storage tank through the supply pipe. During the replenishment of odorant, the odorization of natural gas continues inside the odorization tank. Although the device solves the problem of odorizing natural gas while replenishing odorant, it only injects liquid odorant into the pipeline through simple nozzle atomization and uses the natural gas flow rate for natural dispersion. Under low temperature or low flow rate conditions, it is difficult to completely vaporize, resulting in the problem of excessively high local concentration.

[0003] Therefore, existing technologies need further development. Utility Model Content

[0004] The purpose of this invention is to overcome the above-mentioned technical deficiencies and provide a high-efficiency atomizing device for natural gas odorant, so as to solve the technical problem in the related technology that the liquid odorant is injected into the pipeline by atomizing through a simple nozzle and naturally dispersed by the natural gas flow rate, which is difficult to completely vaporize under low temperature or low flow rate conditions, resulting in excessively high local concentration.

[0005] To achieve the above technical objectives, the present invention adopts the following technical solution: A high-efficiency atomizing device for natural gas odorant is provided, comprising: an odorant chamber; a spraying assembly, at least a portion of which is located within the odorant chamber; the spraying assembly is used to transport the odorant into the odorant chamber; and a stirring assembly, rotatably disposed within the odorant chamber; the stirring assembly includes a separation section and a stirring section, which are connected; wherein the separation section is used to separate incompletely vaporized odorant droplets; and the stirring section is used to stir and mix the natural gas and vaporized odorant within the odorant chamber.

[0006] Furthermore, the odorizing box is provided with an inlet and an outlet for connecting to a natural gas pipeline, with the inlet of the natural gas pipeline being lower than the outlet; the agitation assembly includes: a first conveying pipe, which is disposed inside the odorizing box and connected to the inlet of the odorizing box; a drive box, the inlet end of which is connected to the outlet end of the first conveying pipe; a turbine, which is rotatably disposed inside the drive box; a rotating shaft, which is coaxially disposed with the turbine; and a separation disc, which is coaxially disposed with the rotating shaft; wherein, the separation disc constitutes a separation section, used to centrifugally separate incompletely vaporized odorizing agent droplets falling on it by rotation.

[0007] Furthermore, the agitation assembly also includes: at least two baffles, each baffle being spaced apart along the periphery of the separation disk; the separation disk is provided with multiple separation holes for gas to pass through.

[0008] Furthermore, the agitation assembly also includes: fan blades, which are sleeved on the rotating shaft and are rotatably arranged; wherein the fan blades constitute the agitation part.

[0009] Furthermore, it also includes a storage tank, which is connected to an odorizing tank via a control valve; the spraying assembly includes: an atomizing head, which is disposed inside the odorizing tank; a second infusion pipe, which is connected to the atomizing head; an infusion pump, which is connected to the other end of the second infusion pipe; a third infusion pipe, which is connected to the inlet end of the infusion pump; the third infusion pipe is connected to the odorizing tank for drawing out the odorant in liquid state.

[0010] Furthermore, it also includes: a partition, which is inclinedly installed inside the odor-adding box and is positioned opposite to the atomizing head; and a fan blade located below the partition.

[0011] Furthermore, it also includes: an impurity removal assembly, comprising: an impurity removal box, the bottom of which is connected to the odorization box; a filter plate, which is horizontally arranged inside the impurity removal box, dividing the inner cavity of the impurity removal box into an upper impurity retention area and a lower odorization agent recovery area, the cross-sectional shape of which is the same as that of the impurity removal box; a drive shaft, which is rotatably arranged inside the impurity removal box and concentrically arranged with the filter plate; multiple scrapers, which are fixedly mounted on the drive shaft and located within the impurity retention area; and a slag discharge port, which is opened on the filter plate; wherein, the drive shaft is configured to drive the scrapers to rotate, thereby scraping the impurities accumulated on the top surface of the filter plate to the slag discharge port for discharge.

[0012] Furthermore, a rotating wheel is provided at the end of the drive shaft away from the odor-adding box.

[0013] Furthermore, the odorant recovery area is connected to the inlet end of the infusion pump.

[0014] Beneficial effects: 1. By setting up an agitation component that combines a separation section and an agitation section, the separation section can perform secondary separation of incompletely vaporized odorant droplets sprayed from the injection component, while the agitation section can powerfully agitate the mixed natural gas and the vaporized odorant. This solution effectively solves the problem of uneven vaporization of odorant and the easy formation of excessively high local concentrations under low temperature or low flow rate conditions, ensuring uniform dispersion of odorant in natural gas and improving odorization efficiency and reliability.

[0015] 2. By utilizing the kinetic energy of natural gas itself to drive the turbine to rotate, and driving the separation disc to rotate synchronously via the rotating shaft, the centrifugal separation function without external power is achieved. This scheme converts the pressure energy of natural gas in the pipeline into mechanical energy, efficiently completing the secondary crushing and separation of incompletely gasified odorant droplets, improving energy utilization efficiency, and enhancing the adaptability of the device under low flow rate conditions.

[0016] 3. By setting baffles around the perimeter of the separation disc and opening separation holes on the disc body, the baffles can effectively block and collect droplets, enhancing the centrifugal separation effect, while the separation holes ensure the smooth passage of natural gas gas flow. This scheme optimizes the gas-liquid separation process, further improves the fineness of odorant droplet breakage, promotes the rapid vaporization of odorant, and avoids droplet escape and accumulation. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the high-efficiency atomizing device for natural gas odorant used in this embodiment of the utility model; Figure 2 This is an internal schematic diagram of the high-efficiency atomizing device for natural gas odorant used in an embodiment of this utility model; Figure 3This is a schematic diagram of the internal structure of the drive box of the high-efficiency atomizing device for natural gas odorant used in this embodiment of the utility model; Figure 4 This is a schematic diagram of the impurity removal component structure of the high-efficiency atomizing device for natural gas odorant used in this embodiment of the utility model; Figure 5 This is a structural diagram of the impurity removal component of the high-efficiency atomizing device for natural gas odorant provided in this embodiment of the present invention.

[0018] The above figures include the following reference numerals: 1. Odor-adding box; 2. Spraying assembly; 3. Agitating assembly; 4. Air inlet; 5. First delivery pipe; 6. Drive box; 7. Turbine; 8. Rotating shaft; 9. Separating disc; 10. Baffle; 11. Fan blade; 12. Liquid storage tank; 13. Control valve; 14. Atomizing head; 15. Second delivery pipe; 16. Delivery pump; 17. Third delivery pipe; 18. Baffle; 19. Impurity removal assembly; 20. Impurity removal box; 21. Filter plate; 22. Drive shaft; 23. Scraper; 24. Slag discharge port; 25. Rotary wheel. Detailed Implementation

[0019] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0020] According to an embodiment of this utility model, a high-efficiency atomizing device for natural gas odorant is provided. Please refer to [link to relevant documentation]. Figures 1 to 5 The system includes: an odorizing tank 1; a spraying assembly 2, at least a portion of which is located inside the odorizing tank 1; the spraying assembly 2 is used to deliver odorant into the odorizing tank 1; and an agitating assembly 3, which is rotatably disposed inside the odorizing tank 1. The agitating assembly 3 includes a separation section and an agitating section, which are connected; wherein the separation section is used to separate incompletely vaporized odorant droplets; and the agitating section is used to agitate and mix the natural gas and vaporized odorant within the odorizing tank 1.

[0021] By adopting the above technical solution, and by setting up an agitation component 3 that combines a separation section and an agitation section, the separation section can perform secondary separation of the incompletely vaporized odorant droplets sprayed from the injection component 2, while the agitation section can strongly agitate the mixed natural gas and the vaporized odorant. This solution effectively solves the problem of uneven vaporization of odorant and the easy formation of excessively high local concentrations under low temperature or low flow rate conditions, ensuring the uniform dispersion of odorant in natural gas and improving odorization efficiency and reliability.

[0022] Please refer to Figure 1 and Figure 2 The odorizing tank 1 is provided with an inlet 4 and an outlet connected to a natural gas pipeline, with the inlet 4 of the natural gas pipeline being lower than the outlet. The stirring assembly 3 includes: a first conveying pipe 5, which is disposed inside the odorizing tank 1 and connected to the inlet 4 of the odorizing tank 1; a drive box 6, whose inlet end is connected to the outlet end of the first conveying pipe 5; a turbine 7, which is rotatably disposed inside the drive box 6; a rotating shaft 8, which is coaxially disposed with the turbine 7; and a separation disc 9, which is coaxially disposed with the rotating shaft 8. The separation disc 9 constitutes a separation section, which is used to centrifugally separate the incompletely vaporized odorizing agent droplets falling on it by rotation.

[0023] By adopting the above technical solution, the turbine 7 is driven to rotate by the flow kinetic energy of natural gas itself, and the separation disk 9 is driven to rotate synchronously via the rotating shaft 8, thus realizing the centrifugal separation function without external power. This solution converts the pressure energy of natural gas in the pipeline into mechanical energy, efficiently completing the secondary crushing and separation of incompletely gasified odorant droplets, improving energy utilization efficiency, and enhancing the adaptability of the device under low flow rate conditions.

[0024] Please refer to Figure 2 The agitation assembly 3 also includes at least two baffles 10, each baffle 10 being spaced apart along the periphery of the separation disk 9; the separation disk 9 is provided with a plurality of separation holes for gas to pass through.

[0025] By adopting the above technical solution, by setting baffles 10 around the periphery of the separation disk 9 and opening separation holes on the disk body, the baffles 10 can effectively block and gather droplets, enhancing the centrifugal separation effect, while the separation holes ensure the smooth passage of natural gas gas flow. This solution optimizes the gas-liquid separation process, further improves the fineness of the odorant droplets, promotes the rapid vaporization of the odorant, and avoids the escape and accumulation of droplets.

[0026] Please refer to Figure 1 The stirring assembly 3 also includes a fan blade 11, which is sleeved on the rotating shaft 8 and is rotatably arranged; wherein the fan blade 11 constitutes the stirring part.

[0027] By adopting the above technical solution, the fan blade 11 is coaxially connected with the rotating shaft 8, so that the rotational power of the turbine 7 can directly drive the fan blade 11 to rotate. This solution uses the airflow generated by the fan blade 11 to strongly agitate the gas in the odorization box 1, so that the vaporized odorant is fully and quickly mixed with the natural gas, ensuring the uniformity of the odorization concentration and improving the mixing quality of the final product.

[0028] Specifically, the side of the fan blade 11 closest to the separation plate 9 is a negative pressure zone, which can blow the odorant separated by the separation plate 9 into a mist upwards to be sent to the outlet of the natural gas pipeline. By utilizing the negative pressure zone formed near the separation plate 9 when the fan blade 11 rotates, the centrifugally separated mist odorant is actively drawn in and blown upwards to the outlet. This scheme constructs a continuous flow field from separation, atomization to transportation, effectively preventing the atomized odorant from settling at the bottom of the odorization box 1, and ensuring that the odorant enters the main pipeline efficiently and directionally.

[0029] Preferably, the stirring component 3 is made of a non-metallic material.

[0030] Please refer to Figure 2 It also includes a storage tank 12, which is connected to the odorizing tank 1 via a control valve 13; the spray assembly 2 includes: an atomizing head 14, which is disposed inside the odorizing tank 1; a second infusion pipe 15, which is connected to the atomizing head 14; an infusion pump 16, which is connected to the other end of the second infusion pipe 15; and a third infusion pipe 17, which is connected to the inlet end of the infusion pump 16; the third infusion pipe 17 is connected to the odorizing tank 1 for drawing out the odorant in liquid state.

[0031] By adopting the above technical solution, by setting up an independent liquid storage tank 12 and connecting it to the odorization tank 1 through a control valve 13, and cooperating with the spray assembly 2 consisting of a liquid pump 16, a second liquid pipeline 15 and an atomizing head 14, the continuous supply and fine atomization of the odorant are realized. This solution allows the odorant to be replenished without stopping the machine, ensuring the continuity of the odorization operation. At the same time, the atomizing head 14 ensures the uniformity of the initial spray of the odorant.

[0032] Please refer to Figure 2 It also includes: a partition 18, which is inclinedly arranged in the odorizing box 1, and the partition 18 is arranged opposite to the atomizing head 14; the fan blade 11 is located below the partition 18, and sprays a small stream of odorant onto the upper surface of the partition 18 through the atomizing head 14. The odorant hitting the upper surface of the partition 18 will form a water mist, thus making full contact with the natural gas.

[0033] By adopting the above technical solution, by setting an inclined baffle 18 opposite to the atomizing head 14, the odorant liquid flow sprayed from the atomizing head 14 first impacts the surface of the baffle 18 for initial breakage and splashing; this solution uses mechanical impact force to further refine the odorant droplets, increase its contact area with natural gas, and significantly improve the gasification rate and mixing efficiency of the odorant.

[0034] Please refer to Figure 1 and Figure 5It also includes: an impurity removal assembly 19, which includes: an impurity removal box 20, which is connected to the bottom of the odorizing box 1; a filter plate 21, which is horizontally arranged inside the impurity removal box 20 and divides the inner cavity of the impurity removal box 20 into an upper impurity retention area and a lower odorizing agent recovery area, and the cross-sectional shape of the filter plate 21 is the same as the cross-sectional shape of the impurity removal box 20; a drive shaft 22, which is rotatably arranged inside the impurity removal box 20 and concentrically arranged with the filter plate 21; a plurality of scrapers 23, which are fixedly installed on the drive shaft 22 and located in the impurity retention area; and a slag discharge port 24, which is opened on the filter plate 21. The drive shaft 22 is configured to drive the scrapers 23 to rotate, thereby scraping the impurities accumulated on the top surface of the filter plate 21 to the slag discharge port 24 for discharge.

[0035] By adopting the above technical solution, and by setting up an impurity removal assembly 19 consisting of an impurity removal box 20, a filter plate 21, a drive shaft 22, and a scraper 23, it is possible to filter and remove solid impurities that may be carried in the odorant. This solution effectively prevents impurities from clogging and wearing precision components such as the atomizing head 14 and the infusion pump 16, ensuring the long-term stable operation of the spraying assembly 2 and reducing maintenance requirements.

[0036] Specifically, the impurity removal box 20 can be made of transparent material; Please refer to Figure 4 A rotating wheel 25 is provided at the end of the drive shaft 22 away from the odor-adding box 1.

[0037] By adopting the above technical solution, and by setting a rotating wheel 25 at the end of the drive shaft 22, the impurity removal assembly 19 is provided with the possibility of manual operation; this solution allows maintenance personnel to manually rotate the drive shaft 22 to remove impurities on the filter plate 21.

[0038] Furthermore, the odorant recovery area is connected to the inlet end of the infusion pump 16.

[0039] By adopting the above technical solution, the odorant recovery area at the bottom of the impurity removal box 20 is connected to the inlet of the infusion pump 16, so that the filtered clean odorant can be pumped back into the injection assembly 2 for recycling. This solution realizes online purification and recycling of odorant, reduces waste of odorant, lowers operating costs, and further ensures the purity of odorant in the injected natural gas.

[0040] Working principle: First, natural gas from the pipeline enters the odorizing tank 1 through the lower-positioned inlet 4, flows through the first delivery pipe 5, and impacts the turbine 7 of the agitator assembly 3, causing it to drive the rotating shaft 8 to rotate. Simultaneously, the liquid injection assembly 2 starts, and the liquid pump 16 draws liquid odorant from the bottom of the odorizing tank 1 through the third liquid pipeline 17, delivers it through the second liquid pipeline 15 to the atomizing head 14 for initial atomization, and sprays it onto the inclined baffle 18. The droplets impact the surface of the baffle 18 and are further broken into finer mist. The separation disc 9, coaxially connected to the rotating shaft 8, rotates with the turbine 7, and the atomized odorant on it is further finely separated under centrifugal force. Incompletely vaporized droplets are intercepted by the baffle 10 on the edge of the disc and further broken down, while the rotating fan blade 11... A negative pressure is formed near the separation plate 9, drawing the atomized odorant upwards. On the other hand, the gas in the odorization box 1 is strongly agitated, causing the odorant to mix thoroughly with the natural gas before being discharged from the higher outlet. During this process, impurities settled at the bottom of the odorization box 1 will enter the impurity removal box 20 of the impurity removal component 19 along with the circulating odorant. The impurities are trapped in the upper impurity retention area by the horizontally set filter plate 21, while the filtered clean odorant enters the lower odorant recovery area and is recycled by the infusion pump 16. When needed, the impurities accumulated on the filter plate 21 can be scraped off by manually rotating the wheel 25 to drive the scraper 23, and discharged from the slag discharge port 24, thereby completing the online filtration and removal of impurities and ensuring the continuous clean operation of the system.

[0041] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0042] Optionally, specific examples in this embodiment can refer to the examples described in the above embodiments, and will not be repeated here.

[0043] The sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0044] In the above embodiments of this application, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0045] The above description is only a preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A high-efficiency atomizing device for adding odorants to natural gas, characterized in that, include: Odorizing box (1); A spraying assembly (2), at least a portion of which is located inside the odorizing tank (1); the spraying assembly (2) is used to deliver the odorant into the odorizing tank (1); A stirring assembly (3) is rotatably disposed inside the odor-adding box (1); the stirring assembly (3) includes a separation part and a stirring part, which are connected. The separation section is used to separate incompletely vaporized odorant droplets; the stirring section is used to stir and mix the natural gas and vaporized odorant in the odorization box (1).

2. The high-efficiency atomizing device for natural gas odorant according to claim 1, characterized in that, The odorizing box (1) is provided with an inlet (4) and an outlet for connecting to a natural gas pipeline, wherein the inlet (4) of the natural gas pipeline is lower than the outlet; the stirring assembly (3) includes: The first conveying pipe (5) is installed inside the odorizing box (1) and is connected to the air inlet (4) of the odorizing box (1). The air inlet of the drive box (6) is connected to the outlet of the first conveying pipe (5); Turbine (7), which is rotatably disposed within the drive housing (6); Rotating shaft (8), which is coaxially arranged with the turbine (7); Separating disk (9), the separating disk (9) is coaxially arranged with the rotating shaft (8); The separation disc (9) constitutes the separation section, which is used to centrifugally separate the incompletely vaporized odorant droplets that fall on it by rotation.

3. The high-efficiency atomizing device for natural gas odorant according to claim 2, characterized in that, The agitation component (3) further includes: At least two baffles (10) are provided, each baffle (10) being spaced apart along the periphery of the separation disk (9); the separation disk (9) is provided with a plurality of separation holes for gas to pass through.

4. The high-efficiency atomizing device for natural gas odorant according to claim 2, characterized in that, The agitation component (3) further includes: Fan blade (11), the fan blade (11) is sleeved on the rotating shaft (8), the fan blade (11) is rotatably arranged; wherein, the fan blade (11) constitutes the stirring part.

5. The high-efficiency atomizing device for natural gas odorant according to claim 4, characterized in that, It also includes a liquid storage tank (12), which is connected to the odorization tank (1) via a control valve (13); the spraying assembly (2) includes: Atomizing head (14) is disposed inside the odor-adding box (1); The second infusion pipe (15) is connected to the atomizing head (14); An infusion pump (16) is connected to the other end of the second infusion pipeline (15); The third infusion pipeline (17) is connected to the inlet end of the infusion pump (16); the third infusion pipeline (17) is connected to the odorant tank (1) for extracting the odorant in liquid state.

6. The high-efficiency atomizing device for natural gas odorant according to claim 5, characterized in that, It also includes: a partition (18), which is inclinedly arranged inside the odor-adding box (1), and the partition (18) is arranged opposite to the atomizing head (14); the fan blade (11) is located below the partition (18).

7. The high-efficiency atomizing device for natural gas odorant according to claim 5, characterized in that, Also includes: Impurity removal component (19), the impurity removal component (19) comprising: The impurity removal box (20) is connected to the bottom of the odor-adding box (1); The filter plate (21) is horizontally arranged inside the impurity removal box (20), dividing the inner cavity of the impurity removal box (20) into an upper impurity retention area and a lower odorant recovery area. The cross-sectional shape of the filter plate (21) is the same as that of the impurity removal box (20). A drive shaft (22) is rotatably disposed inside the impurity removal box (20) and is concentrically disposed with the filter plate (21); Multiple scrapers (23) are fixedly mounted on the drive shaft (22) and located within the impurity retention area; Slag discharge port (24), the slag discharge port (24) is opened on the filter plate (21); The drive shaft (22) is configured to drive the scraper (23) to rotate, thereby scraping the impurities accumulated on the top surface of the filter plate (21) to the discharge port (24) for discharge.

8. The high-efficiency atomizing device for natural gas odorant according to claim 7, characterized in that, A wheel (25) is provided at the end of the drive shaft (22) away from the odor-adding box (1).

9. The high-efficiency atomizing device for natural gas odorant according to claim 7, characterized in that, The odorant recovery area is connected to the inlet end of the infusion pump (16).

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