Vehicle-mounted natural gas bottle recovery equipment

Abstract

The utility model belongs to the technical field of natural gas recovery, and particularly relates to vehicle-mounted natural gas bottle recovery equipment which comprises a supporting plate, a storage battery arranged on one side of the upper side of the supporting plate, a control box arranged on one side of the storage battery, a compressor arranged on one side of the storage battery, and an air cooler communicated with the output end of the compressor. And the output end of the air cooler communicates with a recovery gas cylinder, a supporting frame is arranged on the lower side of the recovery gas cylinder, and the supporting frame is fixedly arranged on the upper side of the supporting plate. Residual gas enters the compressor, the compressor compresses the residual gas, the gas is compressed into a liquid state and enters the air cooler through the output end of the compressor, the air cooler rapidly dissipates heat of the gas, and then the gas is fed into the recovery gas bottle through the recovery tank and the connecting valve to be recovered and stored. And natural gas remaining in the gas cylinder is liquefied, recycled and stored, so that the device is more environment-friendly, and the natural gas can be recycled.

Description

Technical Field

[0001] This utility model belongs to the field of natural gas recovery technology, specifically relating to a vehicle-mounted natural gas cylinder recovery device. Background Technology

[0002] Vehicle-mounted natural gas cylinders generally refer to CNG cylinders, which are made by compressing natural gas to a high-pressure state and storing it in cylinders, typically at pressures of 20-25 MPa. CNG cylinders are widely used in natural gas-powered vehicles, such as CNG buses, taxis, and private cars. These cylinders are usually installed inside or at the rear of the vehicle to store compressed natural gas to provide power during operation.

[0003] When CNG cylinders are scrapped or recycled, they are usually handed over to natural gas companies or gas stations for recycling. During recycling, many CNG cylinders still contain residual natural gas. Generally, the natural gas in the cylinder must first be emptied, and then a hole is drilled at the bottom of the cylinder for recycling. Currently, there is generally no special venting equipment for venting residual gas in cylinders. The common method is to take the cylinder to a well-ventilated open area, open the cylinder, and release the residual gas directly. The residual natural gas will quickly disperse into the atmosphere. Another method is to connect a pipe to a tool such as a blowtorch to burn off the residual gas. Both of these methods are relatively wasteful and cannot recover and reuse the gas in the cylinder. Utility Model Content

[0004] To address the above problems, the purpose of this utility model is to provide a vehicle-mounted natural gas cylinder recycling device. This solves the current problem that, when venting residual gas from cylinders, there is generally no dedicated venting equipment. Common methods involve taking the cylinder to a well-ventilated open area, opening the cylinder, and directly releasing the residual gas, which quickly dissipates into the atmosphere. Another method is to connect a pipe to a flamethrower or similar tool to burn off the residual gas. Both of these methods are wasteful and fail to recycle and reuse the gas in the cylinder.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a vehicle-mounted natural gas cylinder recycling device, comprising a support plate, a battery disposed on one side of the upper side of the support plate, a control box disposed on one side of the battery, a compressor disposed on one side of the battery, an air cooler disposed at the output end of the compressor, a recycling gas cylinder disposed at the output end of the air cooler, a support frame disposed on the lower side of the recycling gas cylinder, and the support frame being fixedly disposed on the upper side of the support plate.

[0006] The beneficial effects of this utility model are as follows: the residual gas enters the compressor, the compressor compresses the residual gas, the gas is compressed into a liquid state and enters the air cooler through the output end of the compressor. The air cooler quickly dissipates heat from the gas, and then it is sent to the recovery gas cylinder for recovery and storage through the recovery tank and connecting valve. Compared with direct emission and combustion consumption, the natural gas remaining in the gas cylinder is liquefied, recovered and stored, which is more environmentally friendly and allows natural gas to be recycled and reused.

[0007] To reduce water vapor in the recovered gas;

[0008] As a further improvement to the above technical solution: the input end of the compressor is connected to a connecting pipe, and the end of the connecting pipe away from the compressor is connected to a dehumidification box. The dehumidification box includes a box body, the connecting pipe is connected to the upper side of the box body, the lower side of the side of the box body away from the battery is connected to an air inlet pipe, a sealing cover is provided on one side of the upper side of the box body, and the inner side of the box body is filled with desiccant particles.

[0009] The beneficial effects of this improvement are as follows: During the combustion process, the car engine produces water vapor, which condenses into liquid water and accumulates in the CNG cylinder. In addition, if the dehydration equipment of the CNG refueling station does not work properly, it will also lead to water accumulation in the CNG cylinder. Finally, the CNG feed gas contains a certain amount of moisture, which will form liquid water after being compressed by the compressor. When recovering the CNG cylinder, the gas inside will carry some water vapor with it and be discharged. After entering the housing through the intake pipe, it can be treated by desiccant particles. Then it enters the compressor through the connecting pipe, which can reduce the water vapor in the recovered gas.

[0010] To facilitate uniform gas flow through the desiccant particles;

[0011] As a further improvement to the above technical solution: a dispersion shell is provided on the inner bottom of the box, and fine holes are evenly opened on the upper side of the dispersion shell, and the air inlet pipe is connected to the dispersion shell.

[0012] The beneficial effects of this improvement are: after the gas enters the dispersion shell through the inlet pipe, it will be evenly discharged from the fine holes on the dispersion shell, which facilitates the gas to pass evenly through the desiccant particles.

[0013] In order to observe the moisture absorption of the desiccant particles;

[0014] As a further improvement to the above technical solution, an observation window is provided on one side of the box.

[0015] The beneficial effect of this improvement is that an observation window is provided to observe the moisture absorption status of the desiccant particles.

[0016] In order to provide stable support for recovery gas cylinders of different diameters within a certain range;

[0017] As a further improvement to the above technical solution: the support frame is a rod frame fixedly arranged in an inverted V shape, and the support frame is symmetrically arranged on the lower side of the recovered gas cylinder.

[0018] The beneficial effects of this improvement are: by setting up a support frame, it is possible to stably support gas cylinders of different diameters within a certain range.

[0019] To facilitate the movement of the entire device;

[0020] As a further improvement to the above technical solution: omnidirectional wheels are provided at the four lower corners of the support plate, and a handle is fixedly installed on the upper side of the support plate near the battery.

[0021] The beneficial effects of this improvement are: the addition of casters and handles facilitates the movement of the entire device.

[0022] In order to reduce the impact of hot air on the surrounding area;

[0023] As a further improvement to the above technical solution: the air outlet of the air cooler is located on the upper side.

[0024] The beneficial effects of this improvement are: the air discharged by the air cooler is generally hot, and direct upward discharge allows the hot air to quickly disperse in the upper atmosphere, reducing the impact of the hot air on the surrounding area.

[0025] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ;

[0027] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ;

[0028] Figure 3 This is a top view of the structure of this utility model;

[0029] Figure 4 This is a side sectional view of the moisture absorption box in this utility model;

[0030] In the diagram: 1. Support plate; 2. Battery; 3. Compressor; 4. Air cooler; 5. Recovery tank; 6. Connecting valve; 7. Recovery gas cylinder; 8. Dehumidifier box; 81. Box body; 82. Sealing cover; 83. Desiccant granules; 84. Dispersion shell; 85. Observation window; 9. Air inlet pipe; 10. Connecting pipe; 11. Support frame; 12. Casters; 13. Handle holder. Detailed Implementation

[0031] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of the present invention in any way.

[0032] like Figure 1 — Figure 4As shown: A vehicle-mounted natural gas cylinder recycling device includes a support plate 1. A battery 2 is mounted on one side of the upper part of the support plate 1. A control box is mounted on one side of the battery 2. A compressor 3 is mounted on one side of the battery 2. An air cooler 4 is connected to the output end of the compressor 3. A recycling gas cylinder 7 is connected to the output end of the air cooler 4. A support frame 11 is mounted on the lower side of the recycling gas cylinder 7. The support frame 11 is fixedly mounted on the upper part of the support plate 1. Residual gas enters the compressor 3, which compresses the residual gas into a liquid state. The liquid then enters the air cooler 4 through the output end of the compressor 3.Air cooler 4 quickly dissipates heat from the gas, which is then sent to a recovery gas cylinder 7 for recovery and storage via recovery tank 5 and connecting valve 6. Compared to direct emission and combustion consumption, liquefying and storing the natural gas remaining in the cylinder is more environmentally friendly and allows for the reuse of natural gas. A connecting pipe 10 is connected to the input end of compressor 3, and a dehumidification box 8 is connected to the end of the connecting pipe 10 away from compressor 3. The dehumidification box 8 includes a box body 81, with the connecting pipe 10 connected to the upper side of the box body 81. An air inlet pipe 9 is connected to the lower side of the box body 81 away from battery 2. A sealing cover 82 is provided on one side of the upper side of the housing 81. The inner side of the housing 81 is filled with desiccant particles 83. During combustion, the car engine produces water vapor, which condenses into liquid water and accumulates in the CNG cylinder. Additionally, if the dehydration equipment at the CNG refueling station is not functioning properly, water can also accumulate in the CNG cylinder. Finally, the CNG feed gas contains a certain amount of moisture, which, after compression, forms liquid water. During CNG cylinder recycling, the gas inside carries some water vapor with it and exits through the inlet pipe 9 into the housing 81. The desiccant particles 83 undergo moisture absorption treatment and then enter the compressor 3 through the connecting pipe 10, which can reduce the moisture in the recovered gas. A dispersion shell 84 is provided on the inner bottom of the housing 81. Fine holes are evenly distributed on the upper side of the dispersion shell 84. The air inlet pipe 9 is connected to the dispersion shell 84. After the gas enters the dispersion shell 84 through the air inlet pipe 9, it will be evenly discharged from the fine holes on the dispersion shell 84, facilitating the even distribution of gas through the desiccant particles 83. An observation window 85 is provided on one side of the housing 81 to observe the moisture absorption status of the desiccant particles 83. The support frame 11 is fixed in an inverted V-shape. The support frame 11 is symmetrically arranged on the lower side of the recovered gas cylinder 7. The support frame 11 can stably support recovered gas cylinders 7 of different diameters within a certain range. Each of the four corners of the lower side of the support plate 1 is equipped with casters 12. A handle 13 is fixedly installed on the upper side of the support plate 1 near the battery 2. The casters 12 and handle 13 facilitate the movement of the entire device. The air outlet of the air cooler 4 is located on the upper side. The air discharged from the air cooler 4 is generally hot; direct upward discharge allows the hot air to quickly disperse in the upper atmosphere, reducing the impact of the hot air on the surrounding environment.

[0033] Working principle and usage process of this utility model:

[0034] In operation, the input end of compressor 3 is connected to the gas cylinder to be recovered via the intake pipe 9. The valve on the gas cylinder is opened, and residual gas enters compressor 3. Compressor 3 compresses the residual gas, turning it into a liquid state. The liquid then passes through the output end of compressor 3 into air cooler 4, where air cooler 4 quickly dissipates heat. Afterward, the gas passes through recovery tank 5 and connecting valve 6 and is sent to recovery gas cylinder 7 for storage. Compared to direct emission and combustion consumption, liquefying and storing the natural gas remaining in the cylinder is more environmentally friendly and allows for the reuse of natural gas. Furthermore, car engines produce water vapor during combustion, which condenses into liquid water and accumulates in CNG cylinders. Additionally, if the dehydration equipment at the CNG refueling station is not functioning properly, water can also accumulate in the CNG cylinders. Finally, the CNG feedstock contains a certain amount of moisture, which, after compression by the compressor, will become liquid. When recovering CNG cylinders, some water vapor is discharged along with the gas inside. After entering the housing 81 through the inlet pipe 9, the gas is treated by the desiccant particles 83 for moisture absorption. Then, it enters the compressor 3 through the connecting pipe 10, which can reduce the water vapor in the recovered gas. In addition, during use, after the gas enters the dispersion shell 84 through the inlet pipe 9, it is evenly discharged from the fine holes on the dispersion shell 84, which facilitates the gas to pass evenly through the desiccant particles 83. In addition, an observation window 85 is provided to observe the moisture absorption status of the desiccant particles 83. Furthermore, a support frame 11 is provided to provide stable support for recovered gas cylinders 7 of different diameters within a certain range. In addition, casters 12 and handles 13 are provided to facilitate the movement of the entire device. Furthermore, the air discharged through the air cooler 4 is generally hot. Directly discharging the hot air upwards allows it to quickly disperse in the upper atmosphere, reducing the impact of the hot air on the surrounding environment.

[0035] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0036] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only for the purpose of helping to understand the method and core ideas of the present invention. The above descriptions are only preferred embodiments of the present invention. It should be noted that due to the limitations of textual expression, there are objectively infinite specific structures. For those skilled in the art, several improvements, modifications, or changes can be made without departing from the principles of the present invention, and the above technical features can also be combined in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of the present invention.

Claims

1. A vehicle-mounted natural gas cylinder recycling device, characterized in that: Includes a support plate (1), a battery (2) is provided on one side of the upper side of the support plate (1), a control box is provided on one side of the battery (2), a compressor (3) is provided on one side of the battery (2), an air cooler (4) is connected to the output end of the compressor (3), a recovery gas cylinder (7) is connected to the output end of the air cooler (4), a support frame (11) is provided on the lower side of the recovery gas cylinder (7), the support frame (11) is fixedly installed on the upper side of the support plate (1), and the compressor (3) The input end of the compressor (3) is connected to a connecting pipe (10), and the end of the connecting pipe (10) away from the compressor (3) is connected to a dehumidification box (8). The dehumidification box (8) includes a box body (81). The connecting pipe (10) is connected to the upper side of the box body (81). The lower side of the side of the box body (81) away from the battery (2) is connected to an air inlet pipe (9). A sealing cover (82) is provided on one side of the upper side of the box body (81). The inner side of the box body (81) is filled with desiccant particles (83).

2. The vehicle-mounted natural gas cylinder recycling device according to claim 1, characterized in that: The inner bottom of the box (81) is provided with a dispersion shell (84), and fine holes are evenly opened on the upper side of the dispersion shell (84). The air inlet pipe (9) is connected to the dispersion shell (84).

3. The vehicle-mounted natural gas cylinder recycling device according to claim 1, characterized in that: An observation window (85) is provided on one side of the box (81).

4. The vehicle-mounted natural gas cylinder recycling device according to claim 1, characterized in that: The support frame (11) is a fixed rod frame with an inverted V shape, and the support frame (11) is symmetrically arranged on the lower side of the recovery gas cylinder (7).

5. The vehicle-mounted natural gas cylinder recycling device according to claim 1, characterized in that: The support plate (1) is provided with casters (12) at the four corners of its lower side, and a handle (13) is fixedly provided on the upper side of the support plate (1) near the battery (2).

6. The vehicle-mounted natural gas cylinder recycling device according to claim 1, characterized in that: The air outlet of the air cooler (4) is located on the upper side.

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