Carbon dioxide storage and supply system

Abstract

The invention discloses a carbon dioxide storage and supply system, and relates to the technical field of carbon dioxide storage and transportation. The carbon dioxide storage and supply system comprises a storage tank and a gasifier, the storage tank is connected with a liquid inlet pipe, a first balance pipe, a liquid conveying pipe and a second balance pipe, the other end of the liquid inlet pipe is used for being connected with a transportation tank car, and the other end of the first balance pipe is used for being connected with the transportation tank car. The gasifier comprises a first inlet, a first outlet, a second inlet and a second outlet, the first inlet is connected with a liquid conveying pipe, the first outlet is connected with a gas conveying pipe used for being connected with a conveying pipe network to convey carbon dioxide gas, and the second balance pipe is connected with the gas conveying pipe; and the second inlet and the second outlet are connected with a heat exchange pipeline for conveying a heat exchange medium. According to the carbon dioxide storage and supply system, gas phase self-balance of the storage tank can be achieved, the pressure in the storage tank is guaranteed, the system structure is simplified, and the input cost and the operation cost are reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of carbon dioxide storage and transportation, and specifically, to a carbon dioxide storage and supply system. Background Art

[0002] The storage and transportation of carbon dioxide mainly include normal temperature and high pressure gaseous mode, ultra-low temperature solid dry ice mode and low temperature and medium pressure liquid mode. Based on the storage and transportation cost and safety, the low temperature and medium pressure liquid mode is often used to transport and store carbon dioxide.

[0003] In the related art, liquid carbon dioxide is often sent into a semi-refrigerated spherical tank for storage through a low temperature and medium pressure liquid carbon dioxide tank truck. When the spherical tank supplies carbon dioxide outward, the liquid carbon dioxide is transported to a vaporizer through a transfer pump. The liquid carbon dioxide is vaporized by heat exchange and temperature rise in the vaporizer and is transported to a synthesis device through a transfer pipeline. When storing carbon dioxide in the spherical tank or supplying carbon dioxide outward, the pressure in the spherical tank changes, and a pressure stabilizing device needs to be set to ensure the normal pressure in the spherical tank. The system layout is complicated and the investment cost is high. Moreover, during the process of storing liquid carbon dioxide in the spherical tank, carbon dioxide flash gas is generated, which further affects the pressure balance in the spherical tank. When dealing with the carbon dioxide flash gas, it is usually recovered into a storage tank through a refrigerator, which requires additional consumption of external energy and further increases the system operation cost. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems in the related art to some extent.

[0005] Therefore, an embodiment of the present invention provides a carbon dioxide storage and supply system, which can realize the gas phase self-balance of a storage tank, ensure the pressure in the storage tank, simplify the system structure, and reduce the investment cost and operation cost.

[0006] The carbon dioxide storage and supply system according to the embodiment of the present invention includes:

[0007] A storage tank, the storage tank is connected with a liquid inlet pipe, a first balance pipe, a liquid delivery pipe and a second balance pipe. The other end of the liquid inlet pipe is used to be connected with a transportation tank truck to transport liquid carbon dioxide, and the other end of the first balance pipe is used to be connected with the transportation tank truck to communicate with the inner cavity of the transportation tank truck;

[0008] A vaporizer, the vaporizer includes a first inlet, a first outlet, a second inlet and a second outlet. The first inlet is connected with the liquid delivery pipe, the first outlet is connected with a gas delivery pipe, and the gas delivery pipe is used to be connected with a transfer pipeline to transport gaseous carbon dioxide. The second balance pipe is connected with the gas delivery pipe, and the second inlet and the second outlet are connected with a heat exchange pipeline for transporting a heat exchange medium.

[0009] The carbon dioxide storage and supply system according to the embodiments of the present invention can achieve the gas phase self - balance of the storage tank, ensure the pressure in the storage tank, simplify the system structure, and reduce the input cost and operation cost.

[0010] In some embodiments, it includes a first exhaust pipe. The first exhaust pipe is connected to the storage tank, and the other end of the first exhaust pipe is connected to the gas supply pipe. The first exhaust pipe is used for transporting carbon dioxide flash gas. A first valve is provided on the first exhaust pipe. The first valve is used to open at a first set pressure, and the first set pressure is greater than the transport pressure of the transport pipeline network.

[0011] In some embodiments, it includes a second exhaust pipe. The second exhaust pipe is connected to the storage tank, and the other end of the second exhaust pipe is connected with a venting assembly. The second exhaust pipe is used for transporting carbon dioxide flash gas. A second valve is provided on the second exhaust pipe. The second valve is used to open at a second set pressure, and the second set pressure is greater than the first set pressure.

[0012] In some embodiments, it includes a third exhaust pipe. The third exhaust pipe is arranged in parallel with the second exhaust pipe between the storage tank and the venting assembly. The third exhaust pipe is used for transporting carbon dioxide flash gas. A third valve is provided on the third exhaust pipe. The third valve is used to open at a third set pressure. The third set pressure is greater than the second set pressure, and / or, the second set pressure is greater than the pressure in the storage tank.

[0013] In some embodiments, it includes a controller and a first liquid level gauge. The first liquid level gauge is arranged on the storage tank and electrically connected to the controller. The first liquid level gauge is used for measuring the liquid level height of the storage tank. A fourth valve is provided on the liquid inlet pipe, and a fifth valve is provided on the liquid delivery pipe. The fourth valve and the fifth valve are respectively electrically connected to the controller. The controller is used to control the fourth valve to close when the measured liquid level height reaches the first set liquid level and is used to control the fifth valve to close when the measured liquid level height reaches the second set liquid level.

[0014] In some embodiments, it includes a first temperature measuring instrument. The first temperature measuring instrument is arranged on the gas supply pipe and electrically connected to the controller. The first temperature measuring instrument is used for measuring the gas temperature in the gas supply pipe and transporting the measured temperature to the controller. A sixth valve is provided upstream of the second inlet. The controller is used to control the sixth valve to reduce the opening degree when the measured temperature is greater than the first set temperature and is used to control the fifth valve to reduce the opening degree when the measured temperature is less than the second set temperature.

[0015] In some embodiments, the vaporizer includes a heat exchange chamber communicating with the second inlet and the second outlet. A condensation chamber communicating with the heat exchange chamber is provided on the vaporizer. The condensation chamber is connected to the heat exchange pipe and is used to store the condensate in the heat exchange chamber.

[0016] In some embodiments, a second liquid level gauge is included. The second liquid level gauge is provided in the condensation chamber and is electrically connected to the controller. The second liquid level gauge is used to measure the liquid level height of the condensate and transmit the measured liquid level height to the controller. The controller is used to control the fifth valve to close when the measured liquid level height is higher than the third set liquid level.

[0017] In some embodiments, the storage tank is provided with a connecting pipe. The other end of the connecting pipe is connected to the first balance pipe and the second balance pipe. The connecting pipe is provided with a sixth valve. The storage tank is provided with a pressure gauge and a second temperature gauge electrically connected to the controller. The controller is used to control the fourth valve, the fifth valve and the sixth valve to close when the air pressure in the storage tank is less than the fourth set pressure or the temperature in the storage tank is less than the third set temperature.

[0018] In some embodiments, a plurality of storage tanks are provided. The liquid delivery pipes of the plurality of storage tanks are connected in parallel to the first inlet of the vaporizer, and the second balance pipes of the plurality of storage tanks are connected in parallel to the gas delivery pipe. Description of the Drawings

[0019] Figure 1 is a schematic structural diagram of the carbon dioxide storage and supply system according to an embodiment of the present invention.

[0020] Figure 2 is a schematic connection diagram of the storage tanks in the carbon dioxide storage and supply system according to an embodiment of the present invention.

[0021] Figure 3 is a schematic connection diagram of the vaporizer in the carbon dioxide storage and supply system according to an embodiment of the present invention.

[0022] Reference Numerals:

[0023] Storage tank 1; Liquid inlet pipe 11; Fourth valve 111; First balance pipe 12; Liquid delivery pipe 13; Fifth valve 131; Second balance pipe 14; Connecting pipe 15;

[0024] Vaporizer 2; Heat exchange pipe 21; Condensation chamber 22; Sixth valve 23;

[0025] Gas delivery pipe 3;

[0026] First exhaust pipe 4; First valve 41;

[0027] Second exhaust pipe 5; Second valve 51;

[0028] Vent component 6;

[0029] Third exhaust pipe 7; third valve 71. Detailed implementation manners

[0030] The embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0031] As Figure 1 、 Figure 2 and Figure 3 shown, the carbon dioxide storage and supply system according to the embodiment of the present invention includes a storage tank 1 and a vaporizer 2. The storage tank 1 is connected with a liquid inlet pipe 11, a first balance pipe 12, a liquid delivery pipe 13 and a second balance pipe 14. The other end of the liquid inlet pipe 11 is used to be connected with a transport tank truck to transport liquid carbon dioxide. The other end of the first balance pipe 12 is used to be connected with the transport tank truck to communicate with the inner cavity of the transport tank truck. The vaporizer 2 includes a first inlet, a first outlet, a second inlet and a second outlet. The first inlet is connected with the liquid delivery pipe 13. The first outlet is connected with a gas delivery pipe 3. The gas delivery pipe 3 is used to be connected with a delivery pipe network to transport gaseous carbon dioxide. The second balance pipe 14 is connected with the gas delivery pipe 3. The second inlet and the second outlet are connected with a heat exchange pipeline 21 for transporting a heat exchange medium.

[0032] Working principle of the carbon dioxide storage and supply system according to the embodiment of the present invention: In the feeding condition of the storage tank 1, by connecting the liquid inlet pipe 11 with the transport tank truck and connecting the first balance pipe 12 with the top of the transport tank truck, the air pressure connection between the storage tank 1 and the transport tank truck is realized. The liquid carbon dioxide is pumped into the storage tank 1 through the pumping unit on the transport tank truck, which is convenient for the storage tank 1 to store the liquid carbon dioxide and ensures the gas phase balance in the storage tank 1. In the discharging condition of the storage tank 1, the liquid carbon dioxide in the storage tank 1 is sent out through the liquid delivery pipe 13 of the storage tank 1 and exchanges heat with the heat exchange medium circulating in the heat exchange pipeline 21 at the position of the vaporizer 2 to be vaporized. Part of the gaseous carbon dioxide enters the delivery pipe network through the gas delivery pipe 3 and then reaches the synthesis device. Part of the gaseous carbon dioxide reaches the inside of the storage tank 1 through the second balance pipe 14. The change of the air pressure in the storage tank 1 caused by the discharge of the liquid carbon dioxide is eliminated by the gaseous carbon dioxide, ensuring the gas phase balance in the storage tank 1.

[0033] The carbon dioxide storage and supply system according to the embodiment of the present invention realizes the self-regulation of the air pressure in the storage tank 1 through the first balance pipe 12 and the second balance pipe 14, ensures the self-balance of the gas phase in the storage tank 1, reduces the use of pressure stabilizing equipment to simplify the system structure, and reduces the input cost and operation cost.

[0034] In some embodiments, as Figure 1 and Figure 2As shown in the figure, it includes a first exhaust pipe 4. The first exhaust pipe 4 is connected to the storage tank 1, and the other end of the first exhaust pipe 4 is connected to the air supply pipe 3. The first exhaust pipe 4 is used for transporting carbon dioxide flash vapor. A first valve 41 is provided on the first exhaust pipe 4. The first valve 41 is used to open under a first set pressure, and the first set pressure is greater than the transportation pressure of the transportation pipeline network.

[0035] Specifically, a first exhaust pipe 4 communicating with the inner cavity is provided on the storage tank 1. The other end of the first exhaust pipe 4 is connected to the air supply pipe 3. A first valve 41 is provided on the first exhaust pipe 4. In the storage condition, the air supply pipe 3 is connected to the synthesis device through the transportation pipeline network. The carbon dioxide feed back pressure at the synthesis device is 1.6 MPaG, and the operating pressure is maintained at 1.8 MPaG during the control of carbon dioxide flash vapor discharge. That is, when the transportation pressure of the carbon dioxide flash vapor in the storage tank 1 is greater than 1.8 MPaG, the first valve 41 opens, and it can enter the transportation pipeline network through the first exhaust pipe 4 and the air supply pipe 3, so as to avoid the waste and pollution of carbon dioxide flash vapor discharge. At the same time, it avoids setting a refrigerator to cool and recycle the flash vapor, reduces the equipment investment and energy use, and reduces the system operation cost.

[0036] Optionally, the first valve 41 is an overflow valve or a back pressure valve.

[0037] In some embodiments, as Figure 2 shown in the figure, it includes a second exhaust pipe 5. The second exhaust pipe 5 is connected to the storage tank 1, and the other end of the second exhaust pipe 5 is connected with a venting assembly 6. The second exhaust pipe 5 is used for transporting carbon dioxide flash vapor. A second valve 51 is provided on the second exhaust pipe 5. The second valve 51 is used to open under a second set pressure, and the second set pressure is greater than the first set pressure.

[0038] Specifically, both ends of the second exhaust pipe 5 are respectively connected to the storage tank 1 and the venting assembly 6. The pressure in the storage tank 1 is 2.0 MPaG. When the transportation pressure of the carbon dioxide flash vapor reaches the second set pressure, that is, 2.1 MPaG, the second valve 51 opens, and the carbon dioxide flash vapor reaches the venting assembly 6 through the second exhaust pipe 5, realizing the high-level venting of the flash vapor carbon dioxide, ensuring the safe discharge of the flash vapor carbon dioxide, avoiding the abnormal air pressure in the air supply pipe 3 and the transportation pipeline network caused by the shutdown of the synthesis device, and ensuring the safety of the operation.

[0039] Optionally, the venting assembly 6 includes a venting elbow connected to the second exhaust pipe 5 and a protective net arranged on the venting elbow. The second valve 51 is an overflow valve or a back pressure valve.

[0040] In some embodiments, as Figure 2As shown, it includes a third exhaust pipe 7. The third exhaust pipe 7 is arranged in parallel with the second exhaust pipe 5 between the storage tank 1 and the venting assembly 6. The third exhaust pipe 7 is used to convey carbon dioxide flash gas. A third valve 71 is provided on the third exhaust pipe 7. The third valve 71 is used to open under a third set pressure, and the third set pressure is greater than the second set pressure.

[0041] By providing the third exhaust pipe 7 and the third valve 71, when the conveying pressure of the flash gas carbon dioxide reaches 2.3 MPaG, the third valve 71 can be opened to increase the high-level venting efficiency of the flash gas carbon dioxide, avoid abnormal air pressure in the storage tank 1, and ensure the safety and reliability during the operation of the system.

[0042] Optionally, the third valve 71 is an overflow valve or a back pressure valve.

[0043] In some embodiments, it includes a controller and a first liquid level gauge. The first liquid level gauge is arranged on the storage tank 1 and electrically connected to the controller. The first liquid level gauge is used to measure the liquid level height of the storage tank 1. As Figure 2 shown, a fourth valve 111 is provided on the liquid inlet pipe 11, and a fifth valve 131 is provided on the liquid delivery pipe 13. The fourth valve 111 and the fifth valve 131 are respectively electrically connected to the controller. The controller is used to control the fourth valve 111 to close when the measured liquid level height reaches the first set liquid level and is used to control the fifth valve 131 to close when the measured liquid level height reaches the second set liquid level.

[0044] Specifically, there are multiple first liquid level gauges. The liquid level height in the storage tank is obtained by comparing the liquid level height measurement values of the multiple first liquid level gauges, removing abnormal values, and then taking the average. Taking the first set liquid level height of 12 m and the second set liquid level height of 1 m as an example, in the feeding condition of the storage tank 1, when the liquid level height in the storage tank 1 reaches 12 m, the controller controls the fourth valve 111 to close through an electrical signal to interrupt the conveyance of the liquid inlet pipe 11. In the discharging condition of the storage tank 1, when the liquid level height in the storage tank 1 reaches 1 m, the controller controls the fifth valve 131 to close through an electrical signal to interrupt the conveyance of the liquid delivery pipe 13, which is convenient for detecting the liquid level height in the storage tank 1 to ensure the normal liquid level and gas phase balance in the storage tank 1.

[0045] In some embodiments, it includes a first temperature gauge. The first temperature gauge is arranged on the gas delivery pipe 3 and electrically connected to the controller. The first temperature gauge is used to measure the gas temperature in the gas delivery pipe 3 and convey the measured temperature to the controller. As Figure 2 and Figure 3 shown, a sixth valve 23 is provided upstream of the second inlet. The controller is used to control the sixth valve 23 to reduce the opening degree when the measured temperature is greater than the first set temperature and is used to control the fifth valve 131 to reduce the opening degree when the measured temperature is less than the second set temperature.

[0046] By setting up the first temperature measuring instrument, after the liquid carbon dioxide exchanges heat in the vaporizer 2, the temperature of the generated gaseous carbon dioxide is monitored to ensure that the generated gaseous carbon dioxide meets the requirements. For example, the set value of the gas temperature in the gas supply pipe 3 is 40 °C, the first set temperature is 60 °C, and the second set temperature is 5 °C. When the measured temperature reaches the first set temperature, it means that the heat exchange medium temperature is relatively high and the latent heat is not fully utilized. The controller can adjust the opening degree of the sixth valve 23 to reduce the heat exchange amount of the heat exchange medium to adjust the heat exchange utilization rate. When the measured temperature reaches the second set temperature, it means that the heat exchange medium temperature cannot meet the sufficient heat exchange of the currently transported liquid carbon dioxide. The controller can adjust the opening degree of the fifth valve 131 to reduce the heat exchange amount of the liquid carbon dioxide to increase the temperature of the gaseous carbon dioxide after heat exchange, ensuring the full utilization of heat supply and reducing the operation cost of the system.

[0047] In some embodiments, such as Figure 3 shown, the vaporizer 2 includes a heat exchange chamber communicating with the second inlet and the second outlet. The vaporizer 2 is provided with a condensation chamber 22 communicating with the heat exchange chamber. The condensation chamber 22 is connected to the heat exchange pipeline 21 and is used to store the condensate in the heat exchange chamber. By setting up the condensation chamber 22, after the heat exchange medium in the heat exchange pipeline 21 exchanges heat with the liquid carbon dioxide, the water vapor in the heat exchange medium, i.e., air or water vapor, condenses. The condensation chamber 22 collects the water body to accelerate the discharge of the condensed water body and prevent the water body from freezing in the vaporizer 2, thereby affecting the service life of the vaporizer 2.

[0048] In some embodiments, it includes a second liquid level measuring instrument. The second liquid level measuring instrument is arranged in the condensation chamber 22 and is electrically connected to the controller. The second liquid level measuring instrument is used to measure the liquid level height of the condensate and transmit the measured liquid level height to the controller. The controller is used to control the fifth valve 131 to close when the measured liquid level height is higher than the third set liquid level.

[0049] Specifically, during the discharging process of the storage tank 1, when the liquid carbon dioxide exchanges heat at the position of the vaporizer 2 and the liquid level of the condensed water body in the condensation chamber 22 exceeds the set water level by 0.6 m, it will affect the normal transportation of the heat exchange medium and reduce the heat exchange efficiency of the vaporizer 2. The second liquid level measuring instrument monitors the liquid level height in the condensation chamber 22. When it reaches 0.6 m, the controller controls the fifth valve 131 to close to interrupt the operation of the liquid delivery pipe 13, ensuring the temperature and pressure of the gaseous carbon dioxide transported in the gas supply pipe 3 and the heat exchange efficiency of the vaporizer 2.

[0050] In some embodiments, such as Figure 2As shown, the storage tank 1 is provided with a connecting pipe 15. The other end of the connecting pipe 15 is connected to the first balance pipe 12 and the second balance pipe 14. The connecting pipe 15 is provided with a sixth valve 23. The storage tank 1 is provided with a barometric pressure measuring instrument and a second temperature measuring instrument electrically connected to the controller. The controller is used to control the fourth valve 111, the fifth valve 131 and the sixth valve 23 to close when the barometric pressure in the storage tank 1 is less than the fourth set pressure or the temperature in the storage tank 1 is less than the third set temperature.

[0051] Specifically, the connecting pipe 15 is arranged on the storage tank 1. The other end of the connecting pipe 15 is connected to the first balance pipe 12, the second balance pipe 14 and the first discharge pipe. Valves are respectively arranged on the first balance pipe 12, the second balance pipe 14 and the first discharge pipe. By controlling the valves, the connection of different conveying pipelines can be realized, which is convenient for adjusting the barometric pressure in the storage tank 1.

[0052] In some embodiments, as Figure 2 shown, there are multiple storage tanks 1, and the liquid conveying pipes 13 of the multiple storage tanks 1 are connected in parallel to the first inlet of the vaporizer 2. The second balance pipes 14 of the multiple storage tanks 1 are connected in parallel to the gas delivery pipe 3. The multiple storage tanks 1 are arranged in parallel on one side of the vaporizer 2, which can realize the simultaneous feeding and discharging conditions of the multiple storage tanks 1, improve the operation efficiency of the system and reduce the operation cost.

[0053] Optionally, there are two storage tanks 1. One ends of the first liquid inlet pipes 11 of the two storage tanks 1 are connected to the first main pipe. One ends of the two first balance pipes 12 are connected to the second main pipe. The two liquid conveying pipes 13 are connected in parallel to the first inlet of the vaporizer 2. The two second balance pipes 14 are connected in parallel to the gas delivery pipe 3.

[0054] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0055] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0056] In the present invention, unless otherwise clearly specified or limited, terms such as "installed", "connected", "coupled", "fixed", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or communicable with each other; it may be directly connected, or indirectly connected through an intermediate medium, and may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0057] In the present invention, unless otherwise clearly specified or limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "below" and "beneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0058] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic descriptions of the above terms do 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, without 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.

[0059] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. A carbon dioxide storage and supply system, characterized in that: include: A storage tank, wherein the storage tank is connected with a liquid inlet pipe, a first balancing pipe, a liquid infusion pipe, and a second balancing pipe, wherein the other end of the liquid inlet pipe is used to be connected to a transport tank truck to transport liquid carbon dioxide, and the other end of the first balancing pipe is used to be connected to the transport tank truck to communicate with the inner cavity of the transport tank truck; A gasifier, the gasifier includes a first inlet, a first outlet, a second inlet and a second outlet, the first inlet is connected to the infusion tube, the first outlet is connected to an air supply pipe, the air supply pipe is used to be connected to a delivery network to deliver gaseous carbon dioxide, the second balance pipe is connected to the air supply pipe, and the second inlet and the second outlet are connected to a heat exchange pipeline for delivering a heat exchange medium.

2. The carbon dioxide storage and supply system according to claim 1, characterized in that: It includes a first exhaust pipe, which is connected to the storage tank, and the other end of the first exhaust pipe is connected to the air supply pipe, the first exhaust pipe is used to transport carbon dioxide flash gas, and the first exhaust pipe is provided with a first valve, the first valve is used to open at a first set pressure, and the first set pressure is greater than the delivery pressure of the delivery pipeline network.

3. The carbon dioxide storage and supply system according to claim 2, characterized in that: It includes a second exhaust pipe, which is connected to the storage tank. The other end of the second exhaust pipe is connected to a venting assembly. The second exhaust pipe is used to transport carbon dioxide flash gas. A second valve is provided on the second exhaust pipe. The second valve is used to open at a second set pressure, and the second set pressure is greater than the first set pressure.

4. The carbon dioxide storage and supply system according to claim 3, characterized in that: It includes a third exhaust pipe, which is arranged in parallel with the second exhaust pipe at the storage tank and the venting component, and is used to transport carbon dioxide flash gas. The third exhaust pipe is provided with a third valve, and the third valve is used to open at a third set pressure, and the third set pressure is greater than the second set pressure, and / or the second set pressure is greater than the storage tank pressure.

5. The carbon dioxide storage and supply system according to claim 1, characterized in that: It includes a controller and a first liquid level measuring device, the first liquid level measuring device is arranged on the storage tank and electrically connected to the controller, the first liquid level measuring device is used to measure the liquid level height of the storage tank, the liquid inlet pipe is provided with a fourth valve, the liquid delivery pipe is provided with a fifth valve, the fourth valve and the fifth valve are electrically connected to the controller respectively, the controller is used to control the fourth valve to close when the measured liquid level reaches a first set liquid level and to control the fifth valve to close when the measured liquid level reaches a second set liquid level.

6. The carbon dioxide storage and supply system according to claim 5, characterized in that: It includes a first temperature measuring instrument, which is arranged in the air supply pipe and electrically connected to the controller. The first temperature measuring instrument is used to measure the gas temperature in the air supply pipe and transmit the measured temperature to the controller. A sixth valve is provided upstream of the second inlet. The controller is used to control the sixth valve to reduce the opening when the measured temperature is greater than the first set temperature and to control the fifth valve to reduce the opening when the measured temperature is less than the second set temperature.

7. The carbon dioxide storage and supply system according to claim 5, characterized in that: The vaporizer includes a heat exchange chamber connected to the second inlet and the second outlet. The vaporizer is provided with a condensation chamber connected to the heat exchange chamber. The condensation chamber is connected to the heat exchange pipe and is used to store condensate in the heat exchange chamber.

8. The carbon dioxide storage and supply system according to claim 7, characterized in that: It includes a second liquid level meter, which is arranged in the condensation chamber and electrically connected to the controller. The second liquid level meter is used to measure the liquid level height of the condensate and transmit the measured liquid level height to the controller. The controller is used to control the fifth valve to close when the measured liquid level height is higher than the third set liquid level.

9. The carbon dioxide storage and supply system according to claim 5, characterized in that: The storage tank is provided with a connecting pipe, the other end of the connecting pipe is connected to the first balancing pipe and the second balancing pipe, the connecting pipe is provided with a sixth valve, the storage tank is provided with an air pressure measuring instrument and a second temperature measuring instrument electrically connected to the controller, and the controller is used to control the fourth valve, the fifth valve and the sixth valve to be closed when the air pressure in the storage tank is less than a fourth set pressure or the temperature in the storage tank is less than a third set temperature.

10. The carbon dioxide storage and supply system according to any one of claims 1 to 9, characterized in that: There are multiple storage tanks, and the liquid infusion pipes of the multiple storage tanks are connected in parallel to the first inlet of the gasifier, and the second balance pipes of the multiple storage tanks are connected in parallel to the air supply pipe.

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