Carbon dioxide discharge system

Abstract

The invention relates to the technical field of carbon dioxide transportation, and provides a carbon dioxide release system which comprises a release input pipe, a release and compression power device, a release output pipe, a release valve bank and a valve bank shell. The discharge input pipe is connected between the carbon dioxide conveying pipeline and the discharge and compression power device. And the discharge and compression power device is connected with the discharge output pipe. And a discharge valve group is arranged on the discharge output pipe. And a valve group shell covers the outer side of the release valve group. And the discharge and compression power device is connected between the discharge output pipe and the valve bank shell. And the discharging and compressing power device can be used for compressing and heating part of carbon dioxide discharged from the output pipe and then conveying the carbon dioxide into the valve group shell. Therefore, on one hand, the carbon dioxide discharge efficiency is improved, and potential safety hazards caused by dry ice blockage are avoided; on the other hand, low-temperature damage to the release valve group and the release output pipe in the carbon dioxide release process is reduced, and the service life of the release valve group and the service life of the release output pipe are prolonged.

Description

Technical Field

[0001] The present invention relates to the field of carbon dioxide transportation technology, and in particular to a carbon dioxide release system. Background Art

[0002] Pipeline transportation is an important method for large-scale carbon dioxide transportation, offering the advantages of high economy and good stability. When a carbon dioxide transportation pipeline faces special operating conditions such as maintenance, the high-pressure carbon dioxide within it needs to be released. However, during the release process, large amounts of high-pressure carbon dioxide, due to throttling, can cause temperatures exceeding -60°C at the release port, generating dry ice. This can cause the release pipeline to become clogged with dry ice. This, on the one hand, affects the release efficiency of carbon dioxide and poses certain safety risks. On the other hand, the low-temperature effect generated during the release process can also damage valves and release pipelines, seriously reducing their service life. Summary of the Invention

[0003] The present invention provides a carbon dioxide discharge system to solve the problem that the discharge pipeline is blocked by dry ice due to the throttling low-temperature effect during the carbon dioxide discharge process. This not only affects the carbon dioxide discharge efficiency and poses certain safety hazards, but the low-temperature effect formed during the discharge process also causes damage to valves and discharge pipelines, seriously shortening their service life.

[0004] According to the present invention, a carbon dioxide release system is provided, comprising: a release input pipe, a release and compression power device, a release output pipe, a release valve group, and a valve group housing.

[0005] The discharge input pipe is connected between the carbon dioxide delivery pipeline and the discharge and compression power unit, and the discharge and compression power unit is connected to the discharge output pipe to discharge carbon dioxide from the carbon dioxide delivery pipeline via the discharge and compression power unit into the discharge output pipe. The discharge output pipe is provided with a discharge valve assembly. The outer cover of the discharge valve assembly is provided with a valve assembly housing. The discharge and compression power unit is connected between the discharge output pipe and the valve assembly housing, and is capable of compressing and heating a portion of the carbon dioxide from the discharge output pipe before transporting it into the valve assembly housing.

[0006] According to a carbon dioxide release system provided by the present invention, the release and compression power device includes a release flow channel, a power transmission component and a compression component.

[0007] The discharge channel is connected between the discharge inlet pipe and the discharge outlet pipe. The compression assembly is connected between the discharge outlet pipe and the valve assembly housing. The power transmission assembly is connected to the discharge channel and the compression assembly. Carbon dioxide flowing in the discharge channel can drive the power transmission assembly to operate, thereby providing compression power to the compression assembly.

[0008] According to a carbon dioxide release system provided by the present invention, the power transmission assembly includes an impeller, a driving gear, a first transmission gear, a transmission shaft, a second transmission gear, a driven gear, a wheel and a connecting rod, and the compression assembly includes a compression cylinder.

[0009] Wherein, the impeller, the driving gear and the first transmission gear are all arranged in the discharge channel. The rotating shaft of the impeller is arranged along the gas flow direction in the discharge channel. The impeller is connected to the driving gear. The driving gear is meshedly connected with the first transmission gear. The first transmission gear is connected to one end of the transmission shaft, and the other end of the transmission shaft extends from the inside of the discharge channel to the outside of the discharge channel and is connected to the second transmission gear. The second transmission gear is meshedly connected with the driven gear. The driven gear is connected to the wheel disc. The edge of the wheel disc is connected to one end of the connecting rod, and the other end of the connecting rod is connected to the piston rod of the compression cylinder.

[0010] According to the present invention, a carbon dioxide release system is provided. The compressed gas cylinder is provided with a compressed gas input pipe and a compressed gas output pipe. One end of the compressed gas input pipe is connected to the release output pipe, and the other end of the compressed gas input pipe is connected to the air cavity of the compressed gas cylinder. One end of the compressed gas output pipe is connected to the air cavity of the compressed gas cylinder, and the other end of the compressed gas output pipe is connected to the valve block housing.

[0011] According to a carbon dioxide release system provided by the present invention, the release flow channel includes a connecting section, a reduced diameter section, an expanded diameter section, a straight pipe section and a gradually reduced section.

[0012] One end of the connecting section is connected to the discharge inlet pipe, and the other end of the connecting section is connected to the reduced diameter section. The diameter of the reduced diameter section is smaller than the diameter of the connecting section. The diameter of the straight pipe section is larger than the diameter of the reduced diameter section. The diameter of the expanded diameter section gradually increases. The reduced diameter section transitions to the straight pipe section through the expanded diameter section. The diameter of the tapered section gradually decreases, and the end with the larger diameter of the tapered section is connected to the straight pipe section, while the end with the smaller diameter of the tapered section is connected to the discharge output pipe.

[0013] According to a carbon dioxide release system provided by the present invention, the impeller is arranged in the straight pipe section near one end of the expanded diameter section.

[0014] According to a carbon dioxide release system provided by the present invention, the release valve group includes a plurality of release valves, each of which is sequentially and spaced apart from the other on the release output pipe.

[0015] The valve assembly housing includes a plurality of valve housings. The number of the valve housings is equal to the number of the discharge valves. The valve housings are respectively mounted on the outside of the discharge valves and are interconnected via pipes.

[0016] According to the present invention, a carbon dioxide release system is provided, wherein a first one-way valve is provided between the release output pipe and the compressed gas input pipe. The inlet of the first one-way valve is connected to the release output pipe, and the outlet of the first one-way valve is connected to the compressed gas input pipe.

[0017] The compressed gas output pipe is connected to one of the valve housings. A second one-way valve is disposed between the compressed gas output pipe and the corresponding valve housing. The inlet of the second one-way valve is connected to the compressed gas output pipe. The outlet of the second one-way valve is connected to the corresponding valve housing.

[0018] According to the present invention, a carbon dioxide release system is provided, which further includes an exhaust pipeline and an exhaust valve.

[0019] Wherein, the exhaust pipeline is connected to the valve group housing, and an exhaust valve is provided on the exhaust pipeline.

[0020] According to a carbon dioxide release system provided by the present invention, the carbon dioxide release system further includes a control device and a pressure detection device.

[0021] The pressure detection device is arranged in the valve group housing. The control device is connected to the pressure detection device and the exhaust valve. The control device is used to control the working state of the exhaust valve based on the detection result of the pressure detection device.

[0022] The carbon dioxide release system provided herein includes a release inlet pipe, a release and compression power unit, a release outlet pipe, a release valve assembly, and a valve assembly housing. One end of the release inlet pipe is connected to the carbon dioxide delivery pipeline, and the other end is connected to the release and compression power unit. The release and compression power unit is connected to one end of the release outlet pipe, while the other end of the release outlet pipe is capable of communicating with the external environment. Thus, during the release process, carbon dioxide within the carbon dioxide delivery pipeline can flow from the release inlet pipe through the release and compression power unit into the release outlet pipe, and then be discharged into the external environment through the release outlet pipe. A release valve assembly is also mounted on the release outlet pipe, which controls the release state of the release outlet pipe. Release states include at least a start release state, a stop release state, and a flow rate state during the release process. Furthermore, the valve assembly housing is located outside the release valve assembly. A gas flow space is defined between the valve assembly housing and the release valve assembly. The release and compression power unit is connected between the release outlet pipe and the valve assembly housing. The discharge and compression power unit can also compress and heat a portion of the carbon dioxide in the discharge output pipe before transferring it to the valve block housing. In other words, a portion of the carbon dioxide in the discharge output pipe can be diverted and transferred to the discharge and compression power unit. Under the compression action of the discharge and compression power unit, this portion of carbon dioxide can be compressed and heated. The compressed and heated carbon dioxide is then transferred to the valve block housing, causing the discharge valve block to heat up, thereby alleviating the low-temperature effect caused by the throttling effect during the carbon dioxide discharge process.

[0023] This system structure allows for the diversion of some of the CO2 gas to the discharge and compression power unit during the CO2 release process. This unit compresses and heats the CO2 gas, which is then fed into the valve block housing to heat the discharge valve block. This mitigates the low-temperature effects caused by throttling during the CO2 release process and prevents the formation of dry ice within the valve block. This improves CO2 release efficiency and avoids safety hazards caused by dry ice blockage. Furthermore, it reduces low-temperature damage to the discharge valve block and discharge output pipe during CO2 release, extending their service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction is given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0025] Figure 1It is a structural schematic diagram of the carbon dioxide release system provided by the present invention;

[0026] Figure 2 Schematic diagram of the structure of the release and compression power device in the carbon dioxide release system provided by the present invention;

[0027] Figure 3 Schematic diagram of the structure of the power transmission assembly and compression assembly of the release and compression power device in the carbon dioxide release system provided by the present invention;

[0028] Reference numerals:

[0029] 100. Discharge inlet pipe; 200. Discharge and compression power unit; 210. Discharge flow channel; 211. Connecting section; 212. Reduced diameter section; 213. Expanded diameter section; 214. Straight pipe section; 215. Tapered section; 220. Power transmission assembly; 221. Impeller; 222. Driving gear; 223. First transmission gear; 224. Transmission shaft; 225. Second transmission gear; 226. Driven gear; 227. Wheel; 228. Connecting rod; 230. Compression assembly; 231. Compression cylinder; 232. Piston rod; 233. Compressed gas inlet pipe; 234. Compressed gas output pipe; 300. Discharge output pipe; 400. Discharge valve; 500. Valve housing; 600. Carbon dioxide delivery pipeline; 710. First one-way valve; 720. Second one-way valve; 800. Exhaust line; 810. Exhaust valve. DETAILED DESCRIPTION

[0030] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0031] In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", 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 the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the embodiments of the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance.

[0032] In the description of the embodiments of the present invention, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; and direct connections or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of the present invention based on the specific circumstances.

[0033] In the embodiments of the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, a first feature being "above," "above," and "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is at a higher level than the second feature. A first feature being "below," "below," and "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0034] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiment of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, in the absence of mutual contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples to make the purpose, technical solutions and advantages of the embodiment of the present invention clearer. The technical solutions in the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiment of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0035] The following combination Figures 1 to 3 A carbon dioxide release system provided in an embodiment of the present invention is described. It should be understood that the following description is merely an illustrative embodiment of the present invention and does not constitute any particular limitation to the present invention.

[0036] An embodiment of the present invention provides a carbon dioxide release system, such as Figure 1As shown, the carbon dioxide release system includes: a release input pipe 100, a release and compression power device 200, a release output pipe 300, a release valve group and a valve group housing.

[0037] The discharge input pipe 100 is connected between the CO2 delivery pipeline 600 and the discharge and compression power unit 200. The discharge and compression power unit 200 is connected to the discharge output pipe 300, thereby discharging the CO2 in the CO2 delivery pipeline 600 through the discharge and compression power unit 200 to the discharge output pipe 300. The discharge output pipe 300 is provided with a discharge valve assembly. The outer cover of the discharge valve assembly is provided with a valve assembly housing. The discharge and compression power unit 200 is connected between the discharge output pipe 300 and the valve assembly housing. The discharge and compression power unit 200 is capable of compressing and heating a portion of the CO2 in the discharge output pipe 300 before transporting it to the valve assembly housing.

[0038] The carbon dioxide discharge system provided herein includes a discharge input pipe 100, a discharge and compression power unit 200, a discharge output pipe 300, a discharge valve assembly, and a valve assembly housing. One end of the discharge input pipe 100 is connected to the carbon dioxide delivery pipeline 600, and the other end is connected to the discharge and compression power unit 200. The discharge and compression power unit 200 is connected to one end of the discharge output pipe 300, and the other end of the discharge output pipe 300 is communicable with the external environment. Thus, during the discharge process, carbon dioxide within the carbon dioxide delivery pipeline 600 can flow from the discharge input pipe 100 through the discharge and compression power unit 200 into the discharge output pipe 300, and then be discharged from the discharge output pipe 300 into the external environment. A discharge valve assembly is also installed on the discharge output pipe 300 to control the discharge state of the discharge output pipe 300. The discharge state includes at least a start discharge state, a stop discharge state, and a flow rate state during the discharge process. In addition, a valve group housing is provided on the outside of the discharge valve group. A certain gas flow space is formed between the valve group housing and the discharge valve group. The discharge and compression power unit 200 is connected between the discharge output pipe 300 and the valve group housing. The discharge and compression power unit 200 can compress and heat up part of the carbon dioxide in the discharge output pipe 300 and then transport it to the valve group housing. In other words, a portion of the carbon dioxide in the discharge output pipe 300 can be diverted and input into the discharge and compression power unit 200. Under the compression action of the discharge and compression power unit 200, this portion of carbon dioxide can be compressed and heated. The compressed and heated carbon dioxide is transported to the valve group housing, causing the discharge valve group to heat up, thereby alleviating the low-temperature effect caused by the throttling effect during the carbon dioxide discharge process.

[0039] With this system structure, during the carbon dioxide release process, a portion of the carbon dioxide is diverted to the release and compression power unit 200. Under the action of the release and compression power unit 200, the carbon dioxide gas is compressed and heated. The heated carbon dioxide gas is then fed into the valve block housing to heat the release valve block, thereby alleviating the low-temperature effect caused by throttling during the carbon dioxide release process and preventing the production of dry ice within the release valve block. This, on the one hand, improves the carbon dioxide release efficiency and avoids the safety hazards caused by dry ice blockage. On the other hand, it reduces low-temperature damage to the release valve block and the release output pipe 300 during carbon dioxide release, thereby extending the service life of the release valve block and the release output pipe 300.

[0040] In one embodiment of the present invention, the discharge and compression power device 200 includes a discharge flow passage 210 , a power transmission assembly 220 , and a compression assembly 230 .

[0041] The discharge channel 210 is connected between the discharge inlet pipe 100 and the discharge outlet pipe 300. The compression assembly 230 is connected between the discharge outlet pipe 300 and the valve assembly housing. The power transmission assembly 220 is connected to the discharge channel 210 and the compression assembly 230. The carbon dioxide flowing in the discharge channel 210 drives the power transmission assembly 220 to operate, providing compression power for the compression assembly 230.

[0042] The discharge channel 210 is primarily used to discharge carbon dioxide. Specifically, carbon dioxide within the discharge inlet pipe 100 is transported through the discharge channel 210 to the discharge output pipe 300. Furthermore, the power transmission assembly 220 is connected to the discharge channel 210 and the compression assembly 230. The power transmission assembly 220 utilizes the kinetic energy of the carbon dioxide gas flowing within the discharge channel 210 to provide compression driving force for the compression assembly 230.

[0043] Specifically, in one embodiment of the present invention, the power transmission assembly 220 includes an impeller 221, a driving gear 222, a first transmission gear 223, a transmission shaft 224, a second transmission gear 225, a driven gear 226, a wheel 227 and a connecting rod 228, and the compression assembly 230 includes a compression cylinder 231.

[0044] Among them, the impeller 221, the driving gear 222 and the first transmission gear 223 are all arranged in the discharge channel 210. The rotating shaft of the impeller 221 is arranged along the gas flow direction in the discharge channel 210. The impeller 221 is connected to the driving gear 222. The driving gear 222 is meshed and connected with the first transmission gear 223. The first transmission gear 223 is connected to one end of the transmission shaft 224, and the other end of the transmission shaft 224 extends from the inside of the discharge channel 210 to the outside of the discharge channel 210 and is connected to the second transmission gear 225. The second transmission gear 225 is meshed and connected with the driven gear 226. The driven gear 226 is connected to the wheel disc 227. The edge of the wheel disc 227 is connected to one end of the connecting rod 228, and the other end of the connecting rod 228 is connected to the piston rod 232 of the compression cylinder 231.

[0045] Furthermore, in one embodiment of the present invention, the compressed gas cylinder 231 is provided with a compressed gas input pipe 233 and a compressed gas output pipe 234. One end of the compressed gas input pipe 233 is connected to the discharge output pipe 300, and the other end of the compressed gas input pipe 233 is connected to the air cavity of the compressed gas cylinder 231. One end of the compressed gas output pipe 234 is connected to the air cavity of the compressed gas cylinder 231, and the other end of the compressed gas output pipe 234 is connected to the valve block housing.

[0046] For example, Figures 2 to 3 As shown, in this embodiment, the discharge channel 210 is arranged along a vertical direction. The impeller 221 is arranged in the discharge channel 210. The central axis of the impeller 221 coincides with the central axis of the discharge channel 210. A driving gear 222 is coaxially connected to the impeller 221. A first transmission gear 223 is meshed with the driving gear 222. The central axis of the first transmission gear 223 is horizontal. One end of a transmission shaft 224 is connected to the first transmission gear 223, and the other end of the transmission shaft 224 is connected to the second transmission gear 225. The second transmission gear 225 is meshed with a driven gear 226, the rotation axis of which is horizontal and perpendicular to the transmission shaft 224. A wheel disc 227 is coaxially connected to the driven gear 226. A first hinge point is provided at the edge of the wheel disc 227, and a second hinge point is provided at the outer end of the piston rod 232 of the compression cylinder 231. A connecting rod 228 is connected between the first and second hinge points. A compressed gas inlet pipe 233 and a compressed gas outlet pipe 234 are provided on the compression cylinder 231. The compressed gas inlet pipe 233 is connected between the discharge outlet pipe 300 and the air cavity of the compression cylinder 231, while the compressed gas outlet pipe 234 is connected between the air cavity of the compression cylinder 231 and the valve assembly housing. A flow control valve may also be provided on the compressed gas inlet pipe 233 to control the flow of carbon dioxide diverted from the discharge outlet pipe 300 to the compression cylinder 231.

[0047] During the discharge process, carbon dioxide within the carbon dioxide delivery pipeline 600 enters the discharge channel 210 through the discharge inlet pipe 100 and flows through the discharge channel 210 to the discharge output pipe 300. The carbon dioxide flowing through the discharge channel 210 drives the impeller 221 to rotate. The rotation of the impeller 221 drives the driving gear 222. The driving gear 222 then drives the first transmission gear 223 to rotate. The first transmission gear drives the second transmission gear 225 via the transmission shaft 224. The second transmission gear 225 drives the driven gear 226 to rotate. As the driven gear 226 rotates, the impeller 227 connected to it rotates synchronously. Consequently, the connecting rod 228 connected to the impeller 227 drives the piston rod 232 of the compression cylinder 231 to reciprocate. Most of the carbon dioxide flowing into the discharge output pipe 300 is discharged to the outside environment, while a small amount is diverted to the compressed gas inlet pipe 233 and enters the air chamber of the compression cylinder 231. After being compressed by the compression cylinder 231, the heated carbon dioxide enters the valve group housing through the compressed gas output pipe 234 to heat the relief valve 400 located in the valve group housing, thereby alleviating the throttling low temperature effect.

[0048] Through this structural setting, the kinetic energy in the process of releasing carbon dioxide is fully utilized to provide power for the compression and heating of part of the carbon dioxide gas, thereby achieving the heating of the discharge valve group. This not only prevents the generation of dry ice and blockage, but also greatly saves costs and reduces energy consumption.

[0049] Furthermore, the discharge and compression power unit 200 also includes a housing, within which the discharge channel 210, power transmission assembly 220, and compression assembly 230 are disposed. The connecting section 211 of the discharge channel 210 can extend from the interior of the housing to the exterior to connect with the discharge inlet pipe 100. The tapered section 215 of the discharge channel 210 can extend from the interior of the housing to the exterior to connect with the discharge output pipe 300. A compressed gas inlet pipe 233 can extend from the interior of the housing to the exterior to connect with the discharge output pipe 300. A compressed gas output pipe 234 can extend from the interior of the housing to the exterior to connect with the valve assembly housing.

[0050] In one embodiment of the present invention, the discharge channel 210 includes a connecting section 211 , a diameter-reducing section 212 , a diameter-expanding section 213 , a straight pipe section 214 and a tapered section 215 .

[0051] One end of the connecting section 211 is connected to the discharge inlet pipe 100, and the other end of the connecting section 211 is connected to the reduced diameter section 212. The diameter of the reduced diameter section 212 is smaller than the diameter of the connecting section 211. The diameter of the straight pipe section 214 is larger than the diameter of the reduced diameter section 212. The diameter of the expanded diameter section 213 gradually increases. The reduced diameter section 212 transitions to the straight pipe section 214 through the expanded diameter section 213. The diameter of the tapered section 215 gradually decreases. The end with the larger diameter of the tapered section 215 is connected to the straight pipe section 214. The end with the smaller diameter of the tapered section 215 is connected to the discharge output pipe 300.

[0052] In another embodiment of the present invention, the impeller 221 is disposed in the straight pipe section 214 at one end close to the expanded diameter section 213 .

[0053] For example, Figure 2 As shown, from bottom to top, the connecting section 211, the reduced diameter section 212, the expanded diameter section 213, the straight pipe section 214, and the tapered section 215 are arranged in order. The connecting section 211 is connected to the discharge inlet pipe 100 and one end of the reduced diameter section 212, respectively. The other end of the reduced diameter section 212 is connected to one end of the expanded diameter section 213, which is connected to one end of the straight pipe section 214. The other end of the straight pipe section 214 is connected to one end of the tapered section 215, which is connected to the discharge outlet pipe 300. The connecting section 211, the reduced diameter section 212, and the straight pipe section 214 are all cylindrical sections. The diameters of the expanded diameter section 213 and the tapered section 215 vary. Specifically, from bottom to top, the diameter of the expanded diameter section 213 gradually increases, while the diameter of the tapered section 215 gradually decreases. The diameter of the connecting section 211 is larger than the diameter of the reduced diameter section 212. The diameter of the straight pipe section 214 is larger than the diameter of the reduced diameter section 212, and the diameter of the straight pipe section 214 is larger than the diameter of the connecting section 211. The diameter of the straight pipe section 214 is slightly larger than the outer diameter of the impeller 221. The connecting section 211 is mainly used to connect to the discharge inlet pipe 100, and the expanded diameter section 213 is mainly used to transition from the reduced diameter section 212 with a relatively small diameter to the straight pipe section 214 with a relatively large diameter. The tapered section 215 is mainly used to transition from the straight pipe section 214 with a relatively large diameter to a smaller diameter range for connection to the discharge output pipe 300. During the discharge process, the gas is transported from the connecting section 211 with a relatively large diameter to the reduced diameter section 212 with a relatively small diameter, which can increase the discharge rate of carbon dioxide, enhance its kinetic energy of flow, and thereby increase the driving force for the operation of the impeller 221. In addition, the impeller 221 is arranged in the straight pipe section 214 at a position close to the expanded diameter section 213, that is, close to the reduced diameter section 212, which can further enhance the driving force of the impeller 221.

[0054] In one embodiment of the present invention, the relief valve assembly includes a plurality of relief valves 400. The relief valves 400 are sequentially arranged on the relief output pipe 300 at intervals.

[0055] The valve assembly housing includes a plurality of valve housings 500. The number of valve housings 500 is equal to the number of discharge valves 400. Each valve housing 500 is correspondingly mounted on the outside of each discharge valve 400, and each valve housing 500 is connected to each other through a pipeline.

[0056] In another embodiment of the present invention, a first one-way valve 710 is provided between the discharge output pipe 300 and the compressed gas input pipe 233. The inlet of the first one-way valve 710 is connected to the discharge output pipe 300, and the outlet of the first one-way valve 710 is connected to the compressed gas input pipe 233.

[0057] The compressed gas output pipe 234 is connected to one of the valve housings 500, and a second one-way valve 720 is disposed between the compressed gas output pipe 234 and the corresponding valve housing 500. The inlet of the second one-way valve 720 is connected to the compressed gas output pipe 234. The outlet of the second one-way valve 720 is connected to the corresponding valve housing 500.

[0058] For example, Figure 1 As shown, in this embodiment, the discharge valve assembly includes three discharge valves 400. Accordingly, the valve assembly housing includes three valve casings 500. The three discharge valves 400 are spaced apart on the discharge output pipe 300. This allows the carbon dioxide in the discharge output pipe 300 to be released in a step-by-step throttling manner, mitigating the low-temperature effect caused by the carbon dioxide release process. For example, the carbon dioxide pressure in the carbon dioxide transmission pipeline 600 is 8 MPa. After passing through the first-stage discharge valve 400, the pressure is reduced from 8 MPa to 4 MPa. After passing through the second-stage discharge valve 400, the pressure is reduced from 4 MPa to 0.8 MPa. After passing through the third-stage discharge valve 400, the pressure is reduced from 0.8 MPa to atmospheric pressure. The compressed gas inlet pipe 233 is connected to the discharge output pipe 300 at the front end of the last-stage discharge valve 400. As a result, some of the carbon dioxide at a pressure of 0.8 MPa is delivered to the compressed gas cylinder 231 for pressurization and temperature increase.

[0059] Each of the three relief valves 400 is covered by a valve housing 500. A certain amount of gas flow space exists between each valve housing 500 and the corresponding relief valve 400, and adjacent valve housings 500 are interconnected via pipelines, allowing the gas flow spaces within each valve housing 500 to communicate with each other. The relief output pipe 300 communicates with the air cavity of the compression cylinder 231 via the first one-way valve 710 and the compressed gas inlet pipe 233. The air cavity of the compression cylinder 231 communicates with the inner cavity of one of the valve housings 500 via the second one-way valve 720 and the relief output pipe 300. As a result, some of the carbon dioxide diverted from the relief output pipe 300 can flow unidirectionally into the air cavity of the compression cylinder 231, where it is compressed and subsequently enters the inner cavity of each valve housing 500, thereby heating each relief valve 400.

[0060] In one embodiment of the present invention, the carbon dioxide release system further includes an exhaust pipeline 800 and an exhaust valve 810 .

[0061] The exhaust pipe 800 is connected to the valve group housing, and an exhaust valve 810 is provided on the exhaust pipe 800 .

[0062] Furthermore, in one embodiment of the present invention, the carbon dioxide release system further includes a control device and a pressure detection device.

[0063] The pressure detection device is disposed in the valve assembly housing. The control device is connected to the pressure detection device and the exhaust valve 810. The control device is used to control the working state of the exhaust valve 810 based on the detection result of the pressure detection device.

[0064] Specifically, if Figure 1 As shown, an exhaust pipe is provided on one of the valve housings 500, and the exhaust pipe can be connected to the external environment. An exhaust valve 810 is provided on the exhaust pipe. The exhaust valve 810 is used to control the connection state between the inner cavity of the valve housing 500 and the external environment. In addition, a pressure detection device is provided for detecting the pressure in the inner cavity of the valve housing 500. For example, the pressure detection device is a pressure sensor. A target pressure threshold is preset in the control device. When the pressure detection device detects that the actual pressure in the valve housing 500 exceeds the target pressure threshold, the exhaust valve 810 is controlled to open so that the gas in the valve housing 500 is discharged to the external environment. When the pressure detection device detects that the actual pressure in the valve housing 500 is within the target pressure threshold, the exhaust valve 810 is controlled to close. In addition, after the carbon dioxide in the carbon dioxide delivery pipeline 600 is completely discharged, the exhaust valve 810 can also be controlled to open to exhaust the gas in each valve housing 500.

[0065] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A carbon dioxide release system, characterized in that: include: A discharge inlet pipe (100), a discharge and compression power device (200), a discharge output pipe (300), a discharge valve group and a valve group housing, The discharge input pipe (100) is connected between the carbon dioxide delivery pipeline (600) and the discharge and compression power device (200), and the discharge and compression power device (200) is connected to the discharge output pipe (300) so as to discharge the carbon dioxide in the carbon dioxide delivery pipeline (600) to the discharge output pipe (300) via the discharge and compression power device (200). The discharge output pipe (300) is provided with a discharge valve group, and the outer cover of the discharge valve group is provided with a valve group shell. The discharge and compression power device (200) is connected between the discharge output pipe (300) and the valve group shell, and the discharge and compression power device (200) can compress and heat part of the carbon dioxide in the discharge output pipe (300) and then deliver it to the valve group shell.

2. The carbon dioxide release system according to claim 1, characterized in that: The discharge and compression power device (200) includes a discharge flow channel (210), a power transmission component (220) and a compression component (230); The discharge flow channel (210) is connected between the discharge input pipe (100) and the discharge output pipe (300), the compression assembly (230) is connected between the discharge output pipe (300) and the valve group housing, the power transmission assembly (220) is connected to the discharge flow channel (210) and the compression assembly (230), and the carbon dioxide flowing in the discharge flow channel (210) can drive the power transmission assembly (220) to operate, thereby providing compression power for the compression assembly (230).

3. The carbon dioxide release system according to claim 2, characterized in that: The power transmission assembly (220) includes an impeller (221), a driving gear (222), a first transmission gear (223), a transmission shaft (224), a second transmission gear (225), a driven gear (226), a wheel (227) and a connecting rod (228); the compression assembly (230) includes a compression cylinder (231). The impeller (221), the driving gear (222) and the first transmission gear (223) are all arranged in the discharge channel (210), the rotating shaft of the impeller (221) is arranged along the gas flow direction in the discharge channel (210), the impeller (221) is connected to the driving gear (222), the driving gear (222) is meshed with the first transmission gear (223), the first transmission gear (223) is connected to one end of the transmission shaft (224), and the transmission The other end of the shaft (224) extends from the inside of the discharge channel (210) to the outside of the discharge channel (210) and is connected to the second transmission gear (225). The second transmission gear (225) is meshed and connected with the driven gear (226). The driven gear (226) is connected to the wheel disc (227). The edge of the wheel disc (227) is connected to one end of the connecting rod (228). The other end of the connecting rod (228) is connected to the piston rod (232) of the compression cylinder (231).

4. The carbon dioxide release system according to claim 3, characterized in that: The compression cylinder (231) is provided with a compressed gas input pipe (233) and a compressed gas output pipe (234), one end of the compressed gas input pipe (233) is connected to the discharge output pipe (300), the other end of the compressed gas input pipe (233) is connected to the air cavity of the compression cylinder (231), one end of the compressed gas output pipe (234) is connected to the air cavity of the compression cylinder (231), and the other end of the compressed gas output pipe (234) is connected to the valve group housing.

5. The carbon dioxide release system according to claim 3, characterized in that: The discharge channel (210) includes a connecting section (211), a diameter-reducing section (212), a diameter-expanding section (213), a straight pipe section (214) and a tapered section (215). One end of the connecting section (211) is connected to the discharge inlet pipe (100), and the other end of the connecting section (211) is connected to the diameter-reducing section (212). The diameter of the diameter-reducing section (212) is smaller than the diameter of the connecting section (211). The diameter of the straight pipe section (214) is larger than the diameter of the diameter-reducing section (212). The diameter of the diameter-expanding section (213) gradually increases. The diameter-reducing section (212) is transitionally connected to the straight pipe section (214) through the diameter-expanding section (213). The diameter of the tapered section (215) gradually decreases. The end with the larger diameter of the tapered section (215) is connected to the straight pipe section (214), and the end with the smaller diameter of the tapered section (215) is connected to the discharge output pipe (300).

6. The carbon dioxide release system according to claim 5, characterized in that: The impeller (221) is arranged in the straight pipe section (214) at one end close to the expanded diameter section (213).

7. The carbon dioxide release system according to claim 5, characterized in that: The discharge valve group includes a plurality of discharge valves (400), and each of the discharge valves (400) is sequentially arranged at intervals on the discharge output pipe (300); The valve group housing comprises a plurality of valve housings (500), the number of the valve housings (500) being equal to the number of the discharge valves (400), each of the valve housings (500) being correspondingly arranged to cover the outside of each of the discharge valves (400), and each of the valve housings (500) being interconnected via a pipeline.

8. The carbon dioxide release system according to claim 7, characterized in that: A first one-way valve (710) is provided between the discharge output pipe (300) and the compressed gas input pipe (233), wherein the inlet of the first one-way valve (710) is connected to the discharge output pipe (300), and the outlet of the first one-way valve (710) is connected to the compressed gas input pipe (233). The compressed gas output pipe (234) is connected to one of the valve housings (500), and a second one-way valve (720) is provided between the compressed gas output pipe (234) and the corresponding valve housing (500). The inlet of the second one-way valve (720) is connected to the compressed gas output pipe (234), and the outlet of the second one-way valve (720) is connected to the corresponding valve housing (500).

9. The carbon dioxide release system according to any one of claims 1 to 8, characterized in that: The carbon dioxide release system further includes an exhaust pipeline (800) and an exhaust valve (810). The exhaust pipeline (800) is connected to the valve group housing, and an exhaust valve (810) is provided on the exhaust pipeline (800).

10. The carbon dioxide release system according to claim 9, characterized in that: The carbon dioxide release system also includes a control device and a pressure detection device. The pressure detection device is arranged in the valve group housing, the control device is connected to the pressure detection device and the exhaust valve (810), and the control device is used to control the working state of the exhaust valve (810) based on the detection result of the pressure detection device.

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