A simple device for extracting liquefied gas with acetic acid

Abstract

The utility model relates to the technical field of chemical detection, and specifically to a simple device for extracting liquefied gas with acetic acid, comprising a shell, a pressure reducer is arranged on the top of the shell, a first steel cylinder and a second steel cylinder are detachably arranged on the bottom of the pressure reducer on the shell in sequence, a connecting pipe is arranged between the first steel cylinder and the second steel cylinder, an air inlet of the pressure reducer is connected to an air inlet pipe, an air inlet valve is arranged on the air inlet pipe, an air outlet of the pressure reducer is connected to an air outlet pipe, and the other end of the air outlet pipe is connected to the first steel cylinder. The utility model optimizes the traditional extraction process, and through the pressurization system, the acetic acid in the first steel cylinder can be quickly and evenly added to the liquefied petroleum gas in the second steel cylinder, which not only significantly shortens the extraction time, but also through this pressurized filling method, the acetic acid and the liquefied petroleum gas are mixed more evenly, which is more conducive to the acetic acid absorbing the alkaline nitrogen in the liquefied petroleum gas, ensuring the accuracy of the inspection.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical detection, in particular to a simple device for extracting liquefied gas with acetic acid. Background Art

[0002] In liquefied petroleum gas, alkaline nitrides have adverse effects on the catalytic processing of petroleum, the performance of products, storage stability, etc. It often poisons and inactivates the catalyst, or causes instability in petroleum products, and easily generates colloidal precipitation. Therefore, accurate determination of its content is a key step to ensure the quality and safe use of liquefied petroleum gas.

[0003] In chemical testing, ion chromatography is usually used to analyze the alkaline nitrogen content in liquefied petroleum gas. The alkaline nitrogen in liquefied petroleum gas needs to be extracted with acetic acid solution. In existing laboratories, workers generally directly fill acetic acid into pressurized cylinders containing liquefied petroleum gas. Since the pressure of the cylinders containing liquefied petroleum gas is relatively high, accidents of acetic acid or liquefied petroleum gas leakage are very likely to occur during the filling process. The leaked acetic acid or liquefied petroleum gas can easily cause personal injury to the workers. At the same time, the leaked acetic acid or liquefied petroleum gas can also cause errors in the detection of the alkaline nitrogen content, affecting the accuracy of the test. Utility Model Content

[0004] In order to solve the deficiencies in the prior art, the utility model provides a simple device for extracting liquefied gas with acetic acid.

[0005] To achieve the above-mentioned purpose, the technical solution of the utility model is: a simple device for extracting liquefied gas with acetic acid, comprising a shell, a pressure reducer is arranged on the top of the shell, a first steel cylinder and a second steel cylinder are detachably arranged on the bottom of the pressure reducer on the shell in sequence, a connecting pipe is arranged between the first steel cylinder and the second steel cylinder, an air inlet of the pressure reducer is connected to an air intake pipe, an air intake valve is arranged on the air intake pipe, an air outlet of the pressure reducer is connected to an air outlet pipe, and the other end of the air outlet pipe is connected to the first steel cylinder.

[0006] Furthermore, the first steel cylinder and the second steel cylinder are vertically arranged on the shell.

[0007] Furthermore, a first pressure gauge is arranged above the first steel cylinder body, a first air inlet valve is arranged above the first pressure gauge, and a first air outlet valve is arranged below the first steel cylinder body; a second pressure gauge is arranged above the second steel cylinder body, and a second air inlet valve is arranged above the second pressure gauge.

[0008] Furthermore, a second air outlet valve is provided below the body of the second steel cylinder.

[0009] Furthermore, a first handle is provided on the body of the first steel cylinder, and a second handle is provided on the body of the second steel cylinder.

[0010] Furthermore, quick connectors are provided at the connection between the first steel cylinder and the air intake pipe, the connection between the first steel cylinder and the connecting pipe, and the connection between the second steel cylinder and the connecting pipe.

[0011] Furthermore, at least one first fixing frame for fixing the first steel cylinder is disposed on the front end surface of the shell, and at least one second fixing frame for fixing the second steel cylinder is disposed on the front end surface of the shell.

[0012] Furthermore, the first fixing frame and the second fixing frame are both clamps.

[0013] Furthermore, a mobile platform is provided at the bottom of the shell, and universal wheels are provided around the bottom of the mobile platform.

[0014] Furthermore, the air intake pipe is connected to an exhaust pipe, the interface of the exhaust pipe is located between the air intake valve and the pressure reducer, and the exhaust pipe is provided with a vent valve.

[0015] The beneficial effects achieved by the utility model are:

[0016] 1. The innovative design of the utility model greatly optimizes the traditional extraction process. Through the pressurization system, the acetic acid in the first cylinder can be efficiently and evenly added to the liquefied petroleum gas in the second cylinder, which not only significantly shortens the extraction time, reduces the production cycle, and effectively improves the work efficiency, but also through this pressurized filling method, the acetic acid and liquefied petroleum gas are mixed more evenly, which is more conducive to the acetic acid absorbing the alkaline nitrogen in the liquefied petroleum gas, ensuring the accuracy of the inspection.

[0017] 2. When the acetic acid solution is added to the second cylinder, the utility model uses helium as the power source. As an inert gas, helium has extremely stable chemical properties and does not react with acetic acid or liquefied petroleum gas. This not only avoids the leakage of acetic acid or liquefied petroleum gas that may occur during the filling process, but also effectively isolates the interference of external factors, ensuring the stability and safety of the filling process.

[0018] 3. The staff of the utility model only needs to switch the relevant valves to complete the filling of acetic acid. During the filling process of acetic acid, the staff will not touch the acetic acid or liquefied petroleum gas, and there will be no leakage accidents of acetic acid or liquefied petroleum gas during the filling process, which not only protects the health of the staff, but also ensures the safety and reliability of the inspection process. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the connection principle of the utility model;

[0022] Figure 4 It is a schematic diagram of the overall structure of the first cylinder;

[0023] Figure 5 This is a schematic diagram of the overall structure of the second cylinder.

[0024] Explanation of marks in the figure: 1. Shell; 2. Mobile platform; 3. Universal wheel; 4. First steel cylinder; 5. Second steel cylinder; 6. Connecting pipe; 7. Pressure reducer; 8. Inlet pipe; 9. Outlet pipe; 10. Exhaust pipe; 101. First fixed frame; 102. Second fixed frame; 401. First inlet valve; 402. First pressure gauge; 403. First outlet valve; 404. First handle; 501. Second inlet valve; 502. Second pressure gauge; 503. Second outlet valve; 504. Second handle; 801. Inlet valve; 1001. Vent valve. DETAILED DESCRIPTION

[0025] In order to better understand the purpose, structure and function of the utility model, the following is a further detailed description of a simple device for extracting liquefied gas with acetic acid according to the utility model in conjunction with the accompanying drawings.

[0026] like Figures 1 to 5 As shown, a simple device for extracting liquefied gas with acetic acid comprises a housing 1, the housing 1 is a rectangular parallelepiped structure as a whole, a pressure reducer 7 is arranged on the top of the housing 1, a first steel cylinder 4 and a second steel cylinder 5 are detachably arranged on the front end surface of the housing 1, the first steel cylinder 4 is located directly above the second steel cylinder 5, the first steel cylinder 4 and the second steel cylinder 5 are vertically arranged on the housing 1, the first steel cylinder 4 is located below the pressure reducer 7, a connecting pipe 6 is arranged between the first steel cylinder 4 and the second steel cylinder 5, and the connecting pipe 6 connects the first steel cylinder 4 and the second steel cylinder 5 together. The air inlet of the pressure reducer 7 is connected to an air inlet pipe 8, the end of the air inlet pipe 8 is provided with a joint for quick sealing connection with a helium cylinder, an air inlet valve 801 is arranged on the air inlet pipe 8, the air outlet of the pressure reducer 7 is connected to an air outlet pipe 9, the other end of the air outlet pipe 9 is connected above the first steel cylinder 4, the switch of the air inlet valve 801 controls whether helium enters the first steel cylinder 4, and adjusting the pressure regulating valve on the pressure reducer 7 can control the pressure of helium entering the first steel cylinder 4.

[0027] Quick connectors are provided at the connection between the first steel cylinder 4 and the air intake pipe 8, at the connection between the first steel cylinder 4 and the connecting pipe 6, and at the connection between the second steel cylinder 5 and the connecting pipe 6. The quick connectors can realize the rapid connection and disconnection of the steel cylinders and the pipes, facilitate the taking and placing of materials in the first steel cylinder 4 and the second steel cylinder 5, and improve the convenience of operation.

[0028] The front face of the shell 1 is provided with at least one first fixing frame 101 for fixing the first steel cylinder 4. In this embodiment, there are two first fixing frames 101 located on the same vertical line. The first fixing frame 101 can detachably fix the first steel cylinder 4 on the shell 1; at least one second fixing frame 102 is provided below the first fixing frame 101. In this embodiment, there are two second fixing frames 102 located on the same vertical line. The second fixing frame 102 is also provided on the front face of the shell 1. The second fixing frame 102 can detachably fix the second steel cylinder 5 on the shell 1. The first fixing frame 101 and the second fixing frame 102 are preferably clamps, and non-slip rubber pads are provided in the clamps. The non-slip rubber pads can further firmly fix the steel cylinders to prevent them from shaking or falling off during operation, and can also reduce the friction between the first steel cylinder 4 and the second steel cylinder 5 and the metal clamps, thereby extending the service life of the steel cylinders. The size of the clamp of the first fixing frame 101 matches the first steel cylinder 4, and the size of the clamp of the second fixing frame 102 matches the second steel cylinder 5.

[0029] The first steel cylinder 4 is a steel cylinder with a capacity of 300ML. A first pressure gauge 402 is provided at the air inlet above the body of the first steel cylinder 4. The first pressure gauge 402 can detect the pressure in the first steel cylinder 4 at any time. A first air inlet valve 401 is provided above the first pressure gauge 402. A first handle 404 is provided on one side of the body of the first steel cylinder 4. The staff can easily and conveniently hold and transfer the steel cylinder through the first handle 404, which greatly improves the convenience and efficiency of operation. A first air outlet valve 403 is provided at the air outlet below the body of the first steel cylinder 4; the second steel cylinder 5 is a steel cylinder with a capacity of 1000ML. A second pressure gauge 502 is provided at the air inlet above the body of the second steel cylinder 5. The second pressure gauge 502 can detect the pressure in the second steel cylinder 5 at any time. A second air inlet valve 501 is provided above the second pressure gauge 502. A second handle 504 is provided on one side of the body of the second steel cylinder 5. A second air outlet valve 503 is provided at the air outlet below the body of the second steel cylinder 5.

[0030] The air intake pipe 8 is connected to an exhaust pipe 10, and the interface of the exhaust pipe 10 is located between the air intake valve 801 and the pressure reducer 7. A vent valve 1001 is provided on the exhaust pipe 10. When necessary, the staff can release the gas in the air intake pipe 8 by opening the vent valve 1001 to ensure the safety of the system.

[0031] A mobile platform 2 is provided at the bottom of the housing 1, and universal wheels 3 are provided around the bottom of the mobile platform 2. The universal wheels 3 enable the entire device to be easily moved and positioned, so that the staff can use it in different workplaces.

[0032] When in use, inject acetic acid solution into the first steel cylinder 4, inject liquefied petroleum gas into the second steel cylinder 5, connect the first steel cylinder 4 and the second steel cylinder 5 together through the quick connectors at both ends of the connecting pipe 6, then place the first steel cylinder 4 in the first fixing frame 101, and place the second steel cylinder 5 in the second fixing frame 102, so that the first steel cylinder 4 and the second steel cylinder 5 are in a vertical state, connect the air outlet pipe 9 to the first steel cylinder 4, connect the air inlet pipe 8 to the helium cylinder, open the pressure reducer 7, the air inlet valve 801 and the first air inlet valve 401, introduce helium into the first steel cylinder 4, observe the first pressure gauge 402 and the second pressure gauge 502, and adjust the pressure regulating valve in the pressure reducer 7 to control the pressure in the first steel cylinder 4 to exceed the pressure in the second steel cylinder 5 by about 50psi. The first gas outlet valve 403 and the second gas inlet valve 501 are opened in sequence, and the acetic acid solution in the first steel cylinder 4 is pressed into the second steel cylinder 5 by the helium pressure. Helium is continuously introduced into the first steel cylinder 4 to keep the pressure in the first steel cylinder 4 greater than the pressure in the second steel cylinder 5. After all the acetic acid solution enters the second steel cylinder 5, the second gas inlet valve 501, the first gas outlet valve 403 and the first gas inlet valve 401 are closed in sequence from bottom to top, the valve of the helium cylinder is closed, the connection between the first steel cylinder 4 and the gas outlet pipe 9 is disconnected to release the pressure, the second steel cylinder 5 is removed, and the acetic acid filling operation is completed.

[0033] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A simple device for extracting liquefied gas with acetic acid, characterized in that: The invention comprises a shell (1), wherein a pressure reducer (7) is arranged on the top of the shell (1), and a first steel cylinder (4) and a second steel cylinder (5) are detachably arranged on the bottom of the pressure reducer (7) on the shell (1) in sequence, a connecting pipe (6) is arranged between the first steel cylinder (4) and the second steel cylinder (5), an air inlet of the pressure reducer (7) is connected to an air intake pipe (8), an air intake valve (801) is arranged on the air intake pipe (8), and an air outlet of the pressure reducer (7) is connected to an air outlet pipe (9), and the other end of the air outlet pipe (9) is connected to the first steel cylinder (4).

2. A simple device for extracting liquefied gas with acetic acid according to claim 1, characterized in that: The first steel cylinder (4) and the second steel cylinder (5) are vertically arranged on the shell (1).

3. The simple device for extracting liquefied gas with acetic acid according to claim 1, characterized in that: A first pressure gauge (402) is arranged above the body of the first steel cylinder (4), a first air inlet valve (401) is arranged above the first pressure gauge (402), and a first air outlet valve (403) is arranged below the body of the first steel cylinder (4); a second pressure gauge (502) is arranged above the body of the second steel cylinder (5), and a second air inlet valve (501) is arranged above the second pressure gauge (502).

4. A simple device for extracting liquefied gas with acetic acid according to claim 3, characterized in that: A second gas outlet valve (503) is provided below the body of the second steel cylinder (5).

5. The simple device for extracting liquefied gas with acetic acid according to claim 1, characterized in that: The first steel cylinder (4) is provided with a first handle (404) on its body, and the second steel cylinder (5) is provided with a second handle (504) on its body.

6. The simple device for extracting liquefied gas with acetic acid according to claim 1, characterized in that: Quick connectors are provided at the connection between the first steel cylinder (4) and the air intake pipe (8), the connection between the first steel cylinder (4) and the connecting pipe (6), and the connection between the second steel cylinder (5) and the connecting pipe (6).

7. The simple device for extracting liquefied gas with acetic acid according to claim 1, characterized in that: At least one first fixing frame (101) for fixing the first steel cylinder (4) is arranged on the front end surface of the shell (1), and at least one second fixing frame (102) for fixing the second steel cylinder (5) is arranged on the front end surface of the shell (1).

8. A simple device for extracting liquefied gas with acetic acid according to claim 7, characterized in that: The first fixing frame (101) and the second fixing frame (102) are both clamps.

9. The simple device for extracting liquefied gas with acetic acid according to claim 1, characterized in that: A mobile platform (2) is arranged at the bottom of the housing (1), and universal wheels (3) are arranged around the bottom of the mobile platform (2).

10. The simple device for extracting liquefied gas with acetic acid according to claim 1, characterized in that: The air intake pipe (8) is connected to an exhaust pipe (10), the interface of the exhaust pipe (10) is located between the air intake valve (801) and the pressure reducer (7), and the exhaust pipe (10) is provided with a vent valve (1001).

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