Odorizing machine with structure for accurately adding odorant

Abstract

The utility model discloses an odorizing machine with an accurate odorant adding structure, and relates to the technical field of odorizing machines, the odorizing machine comprises an odorant storage tank, a negative pressure pipe and a negative pressure assembly, the odorant storage tank is connected with the negative pressure assembly through the negative pressure pipe, the negative pressure assembly comprises a negative pressure cylinder, a blanking pipe, a sealing piston and an air cylinder, a one-way component is installed at the bottom end of the negative pressure barrel, the sealing piston is driven by the air cylinder to slide up and down, the sealing piston moving up and down drives air pressure to change and enables odorant to flow, when the odorant is added into the negative pressure barrel, the air cylinder drives the sealing piston to move upwards, and when the negative pressure barrel odorizes a gas pipeline, the sealing piston is driven by the air cylinder to move downwards. The air cylinder drives the sealing piston to move downwards, the odorizing amount and the odorizing discharging amount of the negative pressure barrel each time can be accurately controlled, meanwhile, odorizing agents left in the negative pressure barrel can be completely discharged when odorizing is conducted on a gas pipeline, the next round of odorizing agent filling is not affected, and the purpose of accurate and quantitative adding is achieved.

Description

Technical Field

[0001] This utility model relates to the field of odorizer technology, specifically to an odorizer with a structure for precisely adding odorizer. Background Technology

[0002] To ensure the safety of natural gas transportation and use, natural gas stations inject odorizing agents into odorless natural gas using odorizing machines to detect leaks promptly. Tetrahydrothiophene is a commonly used odorizing agent for fuel gases such as city gas, liquefied petroleum gas (LPG), and natural gas liquefaction (LNG). Tetrahydrothiophene is liquid at room temperature and is generally transported in bottled form.

[0003] The natural gas station first adds the canned odorant to the odorizer, which then adds the odor to the gas pipeline. However, existing odorizers use high pressure to force the odorant out of the machine. The amount of odorant squeezed out varies depending on the airflow strength, making pressure control alone insufficient for accurate odor control of the gas pipeline. Furthermore, some odorant remains on the inner wall of the odorizer, making the actual volume of odorant inside uncontrollable during subsequent fillings. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides an odorizer with a precise odorant addition structure, thus solving the existing technical problems.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An odorizer with a precise odorant addition structure includes an odorant storage tank, a negative pressure pipe, and a negative pressure assembly. The odorant storage tank is connected to the negative pressure assembly via the negative pressure pipe. The negative pressure assembly includes a negative pressure cylinder, a discharge pipe, a sealing piston, and a cylinder. The cylinder is mounted above the negative pressure cylinder. A vertical guide rod is provided inside the negative pressure cylinder. The sealing piston slides on the guide rod. Both the negative pressure pipe and the negative pressure cylinder are movably connected to the sealing piston. The sealing piston is fixed to the extension shaft of the cylinder. The bottom end of the negative pressure cylinder is connected to the discharge pipe, and a one-way component is installed on the inner side of the discharge pipe.

[0007] Preferably, a sealing ring is fitted on the outer wall of the sealing piston, and the sealing piston is sealed to the negative pressure cylinder through the sealing ring.

[0008] Preferably, the bottom of the negative pressure cylinder has a conical structure, and a discharge pipe is installed at the lowest point of the bottom of the negative pressure cylinder.

[0009] Preferably, the unidirectional component includes a support ring, a spring, a sealing ball, and a support frame. The support ring and the support frame are located at the bottom port of the feed tube. The spring installed on the support frame is connected to the sealing ball, and the sealing ball seals the internal through hole of the support ring.

[0010] This invention provides an odorizer with a precise odorant addition structure, which has the following advantages compared with the prior art:

[0011] 1. This odorizer with a precise odorant addition structure uses a cylinder to drive a sealed piston to slide up and down. The up-and-down movement of the sealed piston causes changes in air pressure and allows the odorant to flow. When adding odorant into the negative pressure cylinder, the cylinder drives the sealed piston to move upward. When the negative pressure cylinder adds odorant to the gas pipeline, the cylinder drives the sealed piston to move downward. The amount of odor added and the amount of odor discharged by the negative pressure cylinder each time can be precisely controlled.

[0012] 2. This odorizer, with its precise odorant addition structure, can completely drain any residual odorant from the negative pressure cylinder when adding odorant to the gas pipeline, without affecting the next round of odorant filling, thus achieving the purpose of precise quantitative addition. Attached Figure Description

[0013] Figure 1 This is a side view of the overall structure of this utility model;

[0014] Figure 2 This is a cross-sectional schematic diagram of the dynamic clamping component of this utility model;

[0015] Figure 3 This is a schematic diagram of the clamping block structure of this utility model;

[0016] Figure 4 This is a schematic diagram of the sliding frame of this utility model.

[0017] In the diagram: 1. Odorant storage tank; 2. Negative pressure pipe; 3. Negative pressure assembly; 31. Negative pressure cylinder; 32. Feed pipe; 33. Sealing piston; 34. Guide rod; 35. Cylinder; 36. One-way component; 361. Support ring; 362. Spring; 363. Sealing ball; 364. Support frame. Detailed Implementation

[0018] 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.

[0019] Please see Figures 1-4This utility model provides an odorizer with a precise odorant addition structure, including an odorant storage tank 1, a negative pressure pipe 2, and a negative pressure assembly 3. The odorant storage tank 1 is connected to the negative pressure assembly 3 through the negative pressure pipe 2. The odorant storage tank 1 can squeeze the odorant into the negative pressure assembly 3 through the negative pressure pipe 2. The negative pressure assembly 3 includes a negative pressure cylinder 31, a feeding pipe 32, a sealing piston 33, and a cylinder 35. The cylinder 35 is installed above the negative pressure cylinder 31. The inside of the negative pressure cylinder 31 is provided with a vertical guide rod 34. The sealing piston 33 slides on the guide rod 34. The sealing piston 33 can slide up and down, thereby causing changes in air pressure and allowing the odorant to flow. The negative pressure pipe 2 and the negative pressure cylinder 31 are both movably connected to the sealing piston 33. The sealing piston 33 is fixed to the extension shaft of the cylinder 35. The bottom end of the negative pressure cylinder 31 is connected to the discharge pipe 32. A one-way component 36 is installed on the inner side of the discharge pipe 32. The cylinder 35 can drive the sealing piston 33 to move up and down in a timed and quantitative manner, indirectly allowing the odorant to flow.

[0020] A sealing ring is fitted on the outer wall of the sealing piston 33. The sealing piston 33 is sealed to the negative pressure cylinder 31 through the sealing ring, which ensures the sealing performance.

[0021] The bottom of the negative pressure cylinder 31 is a conical structure. The discharge pipe 32 is installed at the lowest point of the bottom of the negative pressure cylinder 31, so that the odorant in the negative pressure cylinder 31 will be collected at the bottom of the negative pressure cylinder 31 and in the discharge pipe 32.

[0022] The one-way component 36 includes a support ring 361, a spring 362, a sealing ball 363, and a support frame 364. The support ring 361 and the support frame 364 are located at the bottom port of the feed pipe 32. The spring 362 installed on the support frame 364 is connected to the sealing ball 363. The sealing ball 363 seals the internal through hole of the support ring 361. The one-way component 36 acts as a one-way valve, preventing external components from entering the inside of the negative pressure cylinder 31 from the feed pipe 32, while the medium in the negative pressure cylinder 31 can flow out from the feed pipe 32.

[0023] Working Principle: This odorizer with a precise odorant addition structure includes an odorant storage tank 1, a negative pressure pipe 2, and a negative pressure assembly 3. The odorant storage tank 1 can expel the odorant to the negative pressure assembly 3 through the negative pressure pipe 2. The negative pressure assembly 3 includes a negative pressure cylinder 31, a discharge pipe 32, a sealing piston 33, and a cylinder 35. The cylinder 35 drives the sealing piston 33 to slide up and down. The up and down movement of the sealing piston 33 causes changes in air pressure, allowing the odorant to flow. A one-way component 36 is installed inside the discharge pipe 32 to facilitate one-way discharge. Specifically, when odorant is added to the negative pressure cylinder 31, the cylinder 35 drives the sealing piston 33 to move upward. Because the sealing ball 363 in the one-way component 36 blocks the central channel of the discharge pipe 32, the odorant in the negative pressure cylinder 31... As the air pressure decreases, the odorant in the odorant storage tank 1 flows into the negative pressure cylinder 31. The amount of odorant flowing into the negative pressure cylinder 31 is controlled by the cylinder 35, allowing for precise addition. After collecting a fixed amount of odorant in the negative pressure cylinder 31, it can selectively add odorant to the gas pipeline. When adding odorant to the gas pipeline, the cylinder 35 drives the sealing piston 33 to move downward, increasing the air pressure in the negative pressure cylinder 31. The sealing ball 363 is forced to move downward, opening the central channel of the discharge pipe 32. The odorant in the negative pressure cylinder 31 can then flow into the gas pipeline along the discharge pipe 32. The amount of odorant added by the negative pressure cylinder 31 each time can also be precisely controlled. At the same time, any residual odorant in the negative pressure cylinder 31 can be completely discharged, without affecting the next round of odorant filling, thus achieving the purpose of precise quantitative addition.

[0024] In summary, this odorizer with a precise odorant addition structure uses a cylinder 35 to drive a sealing piston 33 to slide up and down. The up-and-down movement of the sealing piston 33 causes changes in air pressure, allowing the odorant to flow. When odorant is added to the negative pressure cylinder 31, the cylinder 35 drives the sealing piston 33 to move upward, reducing the air pressure inside the negative pressure cylinder 31. The odorant in the odorant storage tank 1 flows into the negative pressure cylinder 31. When the negative pressure cylinder 31 adds odorant to the gas pipeline, the cylinder 35 drives the sealing piston 33 to move downward, increasing the air pressure inside the negative pressure cylinder 31. The sealing ball 363 is forced to move downward, opening the central channel of the discharge pipe 32. The odorant in the negative pressure cylinder 31 can then flow along the discharge pipe 32 into the gas pipeline. The amount of odor added and discharged by the negative pressure cylinder 31 each time can be precisely controlled.

[0025] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0026] It should be noted that the above description and illustration of the basic principles, main features and advantages of this utility model should be understood by those skilled in the art. This utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are only illustrative of the principles of this utility model. Various changes and modifications may be made to this utility model without departing from the spirit and scope of this utility model. All such changes and modifications fall within the scope of protection of this utility model as defined by the appended claims and their equivalents.

Claims

1. An odorizer with a precise odorant addition structure, comprising an odorant storage tank (1), a negative pressure pipe (2), and a negative pressure assembly (3), wherein the odorant storage tank (1) is connected to the negative pressure assembly (3) via the negative pressure pipe (2), characterized in that: The negative pressure assembly (3) includes a negative pressure cylinder (31), a feed pipe (32), a sealing piston (33), and a cylinder (35). The cylinder (35) is installed above the negative pressure cylinder (31). A vertical guide rod (34) is provided inside the negative pressure cylinder (31). The sealing piston (33) slides on the guide rod (34). The negative pressure pipe (2) and the negative pressure cylinder (31) are movably connected to the sealing piston (33). The sealing piston (33) is fixed to the extension shaft of the cylinder (35). The bottom end of the negative pressure cylinder (31) is connected to the feed pipe (32). A one-way component (36) is installed on the inner side of the feed pipe (32).

2. An odorizer with a precise odorant addition structure according to claim 1, characterized in that: The outer wall of the sealing piston (33) is fitted with a sealing ring, and the sealing piston (33) is sealed to the negative pressure cylinder (31) through the sealing ring.

3. An odorizer with a precise odorant addition structure according to claim 1, characterized in that: The bottom of the negative pressure cylinder (31) is a conical structure, and the feed pipe (32) is installed at the lowest point of the bottom of the negative pressure cylinder (31).

4. An odorizer with a precise odorant addition structure according to claim 1, characterized in that: The one-way component (36) includes a support ring (361), a spring (362), a sealing ball (363), and a support frame (364). The support ring (361) and the support frame (364) are located at the bottom port of the feed pipe (32). The spring (362) installed on the support frame (364) is connected to the sealing ball (363), and the sealing ball (363) seals the internal through hole of the support ring (361).

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