Exhaust gas recovery device of liquid gas storage tank

Abstract

The utility model provides an exhaust recovery device for a liquid gas storage tank, which belongs to the technical field of exhaust and comprises a recovery cylinder and a recovery component arranged in the recovery cylinder, the recovery component comprises a delivery pipe, a flow valve, a purification shell, a buffer shell, a protective shell, a shunt pipe, a buffer airbag, a vortex fan and a filter column, the purification shell is communicated with the buffer shell, and the buffer shell is communicated with the protective shell. The protection shell is embedded in the top of the outer wall of the buffering shell, and one end of the flow dividing pipe communicates with one end of the buffering air bag. According to the recovery assembly, high-pressure exhaust impact is effectively relieved through a buffering air bag, system components are protected, one-way stable rotation is ensured through the structure of a vortex fan, a ratchet wheel and a pawl, gas mixing is promoted, gas is efficiently purified through a filtering column in a purification shell, the low temperature of the gas is maintained through a heat preservation layer and a heat preservation sleeve, and the recovery efficiency is improved. The device is suitable for liquid gas storage tank exhaust recovery.

Description

Technical Field

[0001] This utility model belongs to the field of exhaust technology, specifically relating to an exhaust recovery device for a liquid gas storage tank. Background Technology

[0002] Venting liquid gas storage tanks is a crucial process involving both safety and efficiency. Here's a detailed explanation: Liquid gas in a sealed storage tank evaporates and turns into a gaseous state, increasing the pressure inside the tank. To avoid safety risks that may arise from excessive pressure, storage tanks are typically designed with a venting system. When the pressure inside the tank exceeds a set value, the venting system automatically activates, releasing some gas to maintain the pressure within a safe range.

[0003] When gas is discharged from a liquefied gas storage tank, the high gas pressure directly impacts the pipeline system. This high-pressure impact not only causes pipeline vibration but can also lead to equipment swaying, and in severe cases, even pipeline rupture or equipment damage. Especially when the exhaust valve is suddenly opened, the instantaneous release of high-pressure gas creates a powerful shock wave, posing a significant threat to pipelines and equipment. During the vaporization process of high-pressure liquefied gas, the temperature rises because gas molecules release latent heat as the pressure decreases. Longer recovery pipelines, due to heat conduction and friction, further exacerbate this temperature increase. When the gas temperature rises to a certain level, the difficulty of liquefaction and recovery increases significantly because more energy is required to lower the gas temperature and reliquefy it. This not only increases energy costs but may also affect the efficiency and quality of liquefaction and recovery. Due to the high temperature and pressure generated during the exhaust process, the exhaust gas requires higher energy consumption for reliquefaction and recovery. On the one hand, the high-temperature gas needs to be cooled to a sufficiently low temperature before liquefaction, which requires a large amount of cooling energy. On the other hand, the high-pressure gas needs to be compressed to a lower pressure during the liquefaction process, which also requires additional energy. Therefore, the energy cost of liquefaction and recovery increases significantly with the increase of exhaust temperature and pressure. Utility Model Content

[0004] The purpose of this invention is to provide a liquid gas storage tank exhaust recovery device, which aims to solve the problems mentioned in the background art.

[0005] A liquid gas storage tank exhaust recovery device, comprising,

[0006] Recycling bin;

[0007] A recovery assembly is located inside the recovery cylinder, comprising: a delivery pipe, a flow valve, a purification shell, a buffer shell, a protective shell, a diverter pipe, a buffer airbag, a vortex fan, and a filter column. The purification shell and the buffer shell are interconnected. The protective shell is embedded in the top of the outer wall of the buffer shell. One end of the diverter pipe is interconnected with one end of the buffer airbag. The buffer airbag is interconnected with the flow valve. One end of the flow valve is interconnected with the output end of the delivery pipe. The input end of the delivery pipe is connected to an external liquid gas storage tank exhaust device via a pipe and a valve. The vortex fan is rotatably embedded in the inner wall of the buffer shell. The filter column is embedded in the inner wall of the purification shell. The other end of the diverter pipe is interconnected with the buffer shell. The delivery pipe is embedded in the inner wall of the recovery cylinder.

[0008] Furthermore, a torsion spring is embedded in the inner wall of the protective shell, with one end of the torsion spring engaged with the inner wall of the protective shell and the other end of the torsion spring engaged with the top of the outer wall of the vortex fan.

[0009] Furthermore, a ratchet is rotatably embedded at the top of the outer wall of the protective shell, and the bottom of the outer wall of the ratchet is fixedly located at the center of the outer wall of the vortex fan via a rotating shaft.

[0010] Furthermore, a pawl is inserted into the top of the outer wall of the protective shell via a torsion bar.

[0011] Furthermore, the pawl and the ratchet are engaged.

[0012] Furthermore, the inner wall of the recycling cylinder is filled with an insulation layer, and the outer wall of the conveying pipe is wrapped with an insulation sleeve.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This recovery assembly effectively mitigates the impact of high-pressure exhaust through a buffer airbag, protecting system components. The structure of the vortex fan, ratchet, and pawl ensures stable unidirectional rotation, promoting gas mixing. The filter column inside the purification shell efficiently purifies the gas, while the insulation layer and insulation sleeve maintain the low temperature of the gas, improving recovery efficiency. The overall design is reasonable, safe, and efficient, and is suitable for the recovery of exhaust gas from liquid gas storage tanks. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0016] Figure 1 This is a perspective view of the present utility model;

[0017] Figure 2 This is a perspective view of the conveying pipe of this utility model;

[0018] Figure 3 This is a three-dimensional view of the buffer airbag of this utility model.

[0019] In the diagram: 1. Recycling cylinder; 2. Conveying pipe; 3. Flow valve; 4. Purification shell; 5. Buffer shell; 6. Protective shell; 7. Diverter pipe; 8. Buffer airbag; 9. Vortex fan; 10. Filter column; 11. Ratchet; 12. Pawl; 13. Torsion spring. Detailed Implementation

[0020] 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.

[0021] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] Please see Figure 1-3 The technical solution provided in this embodiment is as follows:

[0024] A liquid gas storage tank exhaust recovery device, comprising,

[0025] Recycling container 1;

[0026] The recovery assembly is located inside the recovery cylinder 1. The recovery assembly includes a conveying pipe 2, a flow valve 3, a purification shell 4, a buffer shell 5, a protective shell 6, a diverter pipe 7, a buffer airbag 8, a vortex fan 9, and a filter column 10. The purification shell 4 and the buffer shell 5 are interconnected. The protective shell 6 is embedded in the top of the outer wall of the buffer shell 5. One end of the diverter pipe 7 is interconnected with one end of the buffer airbag 8. The buffer airbag 8 is interconnected with the flow valve 3. One end of the flow valve 3 is interconnected with the output end of the conveying pipe 2. The input end of the conveying pipe 2 is connected to the exhaust device of the external liquid gas storage tank via a pipe and a valve. The vortex fan 9 is rotatably embedded in the inner wall of the buffer shell 5. The filter column 10 is embedded in the inner wall of the purification shell 4. The other end of the diverter pipe 7 is interconnected with the buffer shell 5. The conveying pipe 2 is embedded in the inner wall of the recovery cylinder 1.

[0027] In a specific embodiment of this utility model, the recovery component effectively reduces the impact of high-pressure exhaust through the buffer airbag 8, protecting system components. The structure of the vortex fan 9, ratchet 11 and pawl 12 ensures stable unidirectional rotation and promotes gas mixing. The filter column 10 in the purification shell 4 efficiently purifies the gas. The heat insulation layer and heat insulation sleeve maintain the low temperature of the gas and improve the recovery efficiency. The overall design is reasonable, safe and efficient, and suitable for the recovery of exhaust gas from liquid gas storage tanks. First, the input end of the delivery pipe 2 is connected to the external liquid gas storage tank exhaust device via a pipe and valve. When the external liquid gas storage tank exhaust device is opened, high-pressure gas is discharged and first delivered to the inside of the recovery cylinder 1 for heat exchange, reducing the temperature inside the recovery cylinder 1. The flow valve 3 is used for measurement, and the gas is delivered to the buffer airbag 8. The gas is temporarily stored through the one-way valves at the input and output ends of the buffer airbag 8. Then, the buffer airbag 8 slowly releases the gas, which drives the vortex fan 9 to rotate through the diversion pipe 7, thereby driving the torsion spring 13 to rotate. The pawl 12 and ratchet 11 prevent the vortex fan 9 from reversing, further reducing the airflow pressure. Then, the airflow passes through the filter column 10 inside the purification shell 4 to absorb odors, discoloration, and moisture. Finally, the gas is connected to the external gas liquefaction device through the pipe and valve of the purification shell 4 to complete the further liquefaction and recovery of the gas.

[0028] Specifically, a torsion spring 13 is embedded in the inner wall of the protective shell 6, and one end of the torsion spring 13 is engaged with the inner wall of the protective shell 6, while the other end of the torsion spring 13 is engaged with the top of the outer wall of the vortex fan 9.

[0029] In a specific embodiment of this utility model, the other end of the torsion spring 13 is engaged with the top of the outer wall of the vortex fan 9, which can ensure the transmission of kinetic energy.

[0030] Specifically, a ratchet 11 is rotatably embedded on the top of the outer wall of the protective shell 6, and the bottom of the outer wall of the ratchet 11 is fixedly located at the center of the outer wall of the vortex fan 9 via a rotating shaft.

[0031] In a specific embodiment of this utility model, the bottom of the outer wall of the ratchet 11 is fixedly mounted on the center of the outer wall of the vortex fan 9 via a rotating shaft, which can ensure the stability of the installation.

[0032] Specifically, a pawl 12 is inserted into the top of the outer wall of the protective shell 6 via a torsion bar.

[0033] In a specific embodiment of this utility model, a pawl 12 is inserted into the top of the outer wall of the protective shell 6 via a torsion bar, which can ensure the stable positioning of the ratchet 11.

[0034] Specifically, the pawl 12 and the ratchet 11 are engaged.

[0035] In a specific embodiment of this utility model, the pawl 12 and the ratchet 11 are engaged, which can prevent the vortex fan 9 from being limited and prevent it from reversing.

[0036] Specifically, the inner wall of the recycling cylinder 1 is filled with an insulation layer, and the outer wall of the conveying pipe 2 is wrapped with an insulation sleeve.

[0037] In a specific embodiment of this utility model, the inner wall of the recovery cylinder 1 is filled with an insulation layer, and the outer wall of the conveying pipe 2 is wrapped with an insulation sleeve, which can prevent heat exchange of the gas.

[0038] Working principle:

[0039] The recovery assembly effectively mitigates the impact of high-pressure exhaust through the buffer airbag 8, protecting system components. The structure of the vortex fan 9, ratchet 11, and pawl 12 ensures stable unidirectional rotation and promotes gas mixing. The filter column 10 inside the purification shell 4 efficiently purifies the gas. The insulation layer and insulation sleeve maintain the low temperature of the gas, improving the recovery efficiency. The overall design is reasonable, safe, and efficient, and is suitable for the recovery of exhaust gas from liquid gas storage tanks. First, the input end of the delivery pipe 2 is connected to the external liquid gas storage tank exhaust device via a pipe and valve. When the external liquid gas storage tank exhaust device is opened, high-pressure gas is discharged and first delivered to the inside of the recovery cylinder 1 for heat exchange, reducing the temperature inside the recovery cylinder 1. The flow valve 3 is used for measurement, and the gas is delivered to the buffer airbag 8. The gas is temporarily stored through the one-way valves at the input and output ends of the buffer airbag 8. Then, the buffer airbag 8 slowly releases the gas, which drives the vortex fan 9 to rotate through the diversion pipe 7, thereby driving the torsion spring 13 to rotate. The pawl 12 and ratchet 11 prevent the vortex fan 9 from reversing, further reducing the airflow pressure. Then, the airflow passes through the filter column 10 inside the purification shell 4 to absorb odors, discoloration, and moisture. Finally, the gas is connected to the external gas liquefaction device through the pipe and valve of the purification shell 4 to complete the further liquefaction and recovery of the gas.

[0040] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model 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 this utility model should be included within the protection scope of this utility model.

Claims

1. A liquid gas storage tank exhaust recovery device, characterized in that, Including, The recovery cylinder (1) is provided with a recovery assembly in the interior thereof, wherein the recovery assembly comprises a conveying pipe (2), a flow valve (3), a purification shell (4), a buffer shell (5), a protective shell (6), a shunt pipe (7), a buffer air bag (8), a vortex fan (9) and a filter column (10), the purification shell (4) and the buffer shell (5) are in communication with each other, the protective shell (6) is embedded at the top of the outer wall of the buffer shell (5), one end of the shunt pipe (7) is in communication with one end of the buffer air bag (8), the buffer air bag (8) and the flow valve (3) are in communication with each other, one end of the flow valve (3) is in communication with the output end of the conveying pipe (2), the input end of the conveying pipe (2) is in communication with the valve through a pipeline and is arranged at the external liquid gas storage tank exhaust device, the vortex fan (9) is rotatably embedded at the inner wall of the buffer shell (5), the filter column (10) is embedded at the inner wall of the purification shell (4), the other end of the shunt pipe (7) is in communication with the buffer shell (5), and the conveying pipe (2) is embedded at the inner wall of the recovery cylinder (1). The inner wall of the protective shell (6) is embedded with a torsion spring (13), one end of the torsion spring (13) is clamped at the inner wall of the protective shell (6), and the other end of the torsion spring (13) is clamped at the top of the outer wall of the vortex fan (9).

2. A liquid gas storage tank vent recovery apparatus according to claim 1, wherein, The top of the outer wall of the protective shell (6) is rotatably embedded with a ratchet wheel (11), and the bottom of the outer wall of the ratchet wheel (11) is fixedly arranged at the center of the outer wall of the vortex fan (9) through a rotating shaft.

3. A liquid gas storage tank vent recovery apparatus according to claim 2, wherein, The top of the outer wall of the protective shell (6) is rotatably embedded with a ratchet wheel (11), and the bottom of the outer wall of the ratchet wheel (11) is fixedly arranged at the center of the outer wall of the vortex fan (9) through a rotating shaft.

4. A liquid gas storage tank vent recovery apparatus according to claim 3, wherein The top of the outer wall of the protective shell (6) is rotatably embedded with a ratchet wheel (11), and the bottom of the outer wall of the ratchet wheel (11) is fixedly arranged at the center of the outer wall of the vortex fan (9) through a rotating shaft.

5. A liquid gas storage tank vent recovery apparatus according to claim 4, wherein, The ratchet wheel (11) and the ratchet pawl (12) are in meshing connection.

6. A liquid gas storage tank vent recovery apparatus according to claim 5, wherein, The inner wall of the recovery cylinder (1) is filled with a heat preservation layer, and the outer wall of the conveying pipe (2) is wrapped with a heat preservation sleeve.

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