CCUS gas turbulence heating device

Abstract

The utility model belongs to the technical field of turbulence heating, and provides a CCUS gas turbulence heating device which comprises a gas supply chamber, a first vortex assembly is installed in the gas supply chamber, and the first vortex assembly is welded through an airtight buckle and provided with a second vortex assembly. Laval nozzles are welded to the first vortex assembly and the second vortex assembly in an airtight buckling mode. The carbon dioxide temperature and the carbon dioxide expansion volume of the CCUS liquid cooling energy storage geothermal power generation wellhead are improved, the efficiency of the turbine generator and the secondary dead steam reheating temperature of the turbine are improved, meanwhile, the installed capacity of the turbine is increased, the energy consumption of the turbine is reduced, and heat energy is provided for clean heating of cities.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of turbulent flow heating, specifically a CCUS gas turbulent flow heating device. BACKGROUND

[0002] With the intensification of global climate change, carbon capture, utilization and storage (CCUS) technology has gradually become an important means to cope with climate problems. This technology involves capturing carbon dioxide from industrial emission sources, processing it through a series of processes, and then utilizing or storing it to reduce the impact of carbon dioxide on the atmosphere. Among them, the gas turbulent flow heating device, as a key component of CCUS technology, directly affects the processing efficiency of carbon dioxide and the power generation efficiency;

[0003] The working principle of the vortex tube is that after compressed air 0.7Mpa is input into the vortex tube, it flows to one end at high speed. In the process of this airflow movement, the friction between gas molecules and metal pipe wall will heat the air, and the inner layer of air will be cooled to -45 degrees. The cold and hot degree is proportional to the flow rate, and when it moves to one end, the cold gas flows back along the center of the vortex, forming a cold and hot source.

[0004] The current technology has the problems of slow response and low precision in controlling the temperature of carbon dioxide. It cannot adjust the gas temperature in real time, which leads to the fact that the heat exchange efficiency of the system cannot be maintained at the best state under different working conditions; in the energy conversion process, the heat energy utilization rate and conversion efficiency are often low, which leads to energy loss in the expansion process of carbon dioxide, directly affecting the power generation efficiency of the turbine; and most of the existing devices are not ideal for controlling and guiding the airflow, especially in the multi-channel design, the gas flow structure is easily disturbed, forming a dead zone of airflow, causing abnormal fluctuations in local temperature and pressure; at the same time, the friction heating efficiency caused by the rotation of some vortex tubes is not high, and under high pressure conditions, the relative movement of the vortex tube fails to fully exert its potential, resulting in unsatisfactory heating effect, which further affects the expansion process of the gas.

[0005] Therefore, the technical personnel in the art propose a CCUS gas turbulent flow heating device, which utilizes the high-speed and rotational friction of ultra-supercritical carbon dioxide gas in the vortex tube to realize effective conversion and utilization of energy, providing a new solution for the production of clean energy. UTILITY MODEL CONTENTS

[0006] In order to solve the above technical problems, the utility model provides a CCUS gas turbulent flow heating device, which solves the problems of low temperature of CCUS ultra-supercritical carbon dioxide liquid cooling energy storage geothermal power wellhead carbon dioxide, low expansion ratio, low enthalpy entropy value, high turbine energy consumption and inability to provide urban heating.

[0007] A CCUS gas turbulent flow heating device, comprising a gas supply chamber, a first vortex assembly is installed in the gas supply chamber, the first vortex assembly is provided with a second vortex assembly through gas-tight butt welding, and a Laval nozzle is arranged on the first vortex assembly and the second vortex assembly through gas-tight butt welding.

[0008] Preferably, the first vortex assembly further comprises a No. 1 vortex tube serving as a female vortex tube body, first ultra-supercritical carbon dioxide gas inlets are arranged on both sides of the upper end of the No. 1 vortex tube, the No. 1 vortex tube is penetrated in the middle from top to bottom, and a flange plate is arranged at the bottom of the No. 1 vortex tube; and a turbulent flow generating chamber is arranged in the inner cavity of the lower segment of the No. 1 vortex tube.

[0009] Preferably, the second vortex assembly further comprises a No. 2 vortex tube arranged in the No. 1 vortex tube, serving as a male vortex tube body, the No. 2 vortex tube is inserted from the top penetrating port of the No. 1 vortex tube, and the interface is welded; and second ultra-supercritical carbon dioxide gas inlets are arranged on both sides of the upper end of the No. 2 vortex tube.

[0010] Preferably, the second ultra-supercritical carbon dioxide gas inlets are provided with Laval nozzles through gas-tight screw thread welding, and the Laval nozzles are further welded to the first ultra-supercritical carbon dioxide gas inlets through gas-tight screw thread welding, and four groups of Laval nozzles are arranged.

[0011] Preferably, the gas supply chamber is a sealed chamber, the lower segment of the gas supply chamber wraps the upper ends of the No. 1 vortex tube and the No. 2 vortex tube, the gas supply chamber is provided with a shell, and after the ultra-supercritical carbon dioxide gas passes through the Laval nozzles, the ultra-supercritical carbon dioxide gas enters the No. 1 vortex tube and the No. 2 vortex tube at the same time, at this time, the inner wall of the No. 1 vortex tube and the outer wall of the No. 2 vortex tube rotate and rub at a clockwise ultrasonic speed of 10 million revolutions per minute, and at the same time, the ultra-supercritical carbon dioxide gas enters the No. 2 vortex tube at a counterclockwise ultrasonic speed of 10 million revolutions per minute under high pressure, to form high-temperature and high-pressure ultra-supercritical expansion gas, and the two groups of high-speed and high-pressure rotating gases in different directions meet in the turbulent flow generating chamber to form acceleration.

[0012] Preferably, the inner and outer walls of the No. 1 vortex tube and the No. 2 vortex tube are subjected to roughening treatment through a laser.

[0013] Compared with the prior art, the device has the following beneficial effects:

[0014] 1. The utility model discloses a supercritical carbon dioxide gas is entered 1st vortex pipe and 2nd vortex pipe in through the laval nozzle after the gas supply chamber, and the supercritical carbon dioxide gas is compressed and collided under high pressure in 1st vortex pipe of the CCUS gas turbulent heating device, at this moment, the inner wall of 1st vortex pipe and the outer wall of 2nd vortex pipe rotate and rub with 100 million clockwise supersonic speed per minute, and the supercritical carbon dioxide gas is rotated and rubbed with 100 million counterclockwise supersonic speed per minute under high pressure in 2nd vortex pipe, form high-temperature high-pressure supercritical expansion gas, and the two high-speed high-pressure gas of different directions rotates in the turbulent generation chamber and meets to form acceleration, and the gas molecule high-speed violent friction impact generates high-temperature high-pressure to drive turbine generator, improve turbine generator efficiency, reduce turbine gas energy consumption, provide green warmth for city, help double carbon drive.

[0015] 2. The utility model discloses improve the carbon dioxide temperature of CCUS liquid cooling energy storage geothermal power well mouth, improve carbon dioxide expansion volume, improve turbine generator efficiency, improve turbine secondary exhaust reheat temperature, increase turbine installed capacity, reduce turbine energy consumption, provide heat energy for city clean heating. ACCURACY

[0016] Figure 1 It is the whole structure and gas flow direction schematic drawing of the utility model;

[0017] Figure 2 It is the structure schematic drawing of the utility model;

[0018] Figure 3 It is the first vortex subassembly structure schematic drawing of the utility model;

[0019] Figure 4 It is the second vortex subassembly structure schematic drawing of the utility model;

[0020] Figure 5 It is the rotating and rubbing process schematic drawing of the utility model;

[0021] Figure 6 It is the inside structure schematic drawing of the utility model's turbulent generation chamber.

[0022] In the drawing:

[0023] 100, gas supply chamber; 101, shell; 200, first vortex subassembly; 201, 1st vortex pipe; 202, first supercritical carbon dioxide gas inlet; 203, flange; 204, turbulent generation chamber; 300, second vortex subassembly; 301, 2nd vortex pipe; 302, second supercritical carbon dioxide gas inlet; 400, laval nozzle. DETAILED DESCRIPTION

[0024] The embodiments of the present application will be further described in conjunction with the drawings and examples. The following examples are used to illustrate the present application, but cannot be used to limit the scope of the present application.

[0025] As shown in the accompanying Figure 1 to the accompanying Figure 6 as shown:

[0026] Embodiment one: the utility model provides a CCUS gas turbulent flow heating device, including gas supply chamber 100, install first vortex component 200 in gas supply chamber 100, first vortex component 200 is welded through gas tight buckle, and be provided with second vortex component 300, and first vortex component 200 and second vortex component 300 all gas tight buckle have lavall nozzle 400.

[0027] First vortex component 200 still includes 1st vortex tube 201, as the mother vortex tube pipe body, first supercritical carbon dioxide inlet 202 is set up in the upper end both sides of 1st vortex tube, 1st vortex tube 201 is through the middle part from top to bottom, and the bottom is installed with flange plate 203, and the inner chamber of 1st vortex tube 201 lower segment is provided with turbulent flow generating chamber 204.

[0028] Second vortex component 300 still includes 2nd vortex tube 301 set up in 1st vortex tube 201, as the male vortex tube pipe body, 2nd vortex tube 301 is inserted from 1st vortex tube 201 top through hole, and the interface is welded, and second supercritical carbon dioxide inlet 302 is set up in the upper end both sides of 2nd vortex tube 301.

[0029] Second supercritical carbon dioxide inlet 302 is welded with lavall nozzle 400 through gas tight thread, and lavall nozzle 400 is also welded in first supercritical carbon dioxide inlet 202 through gas tight thread, and four groups of lavall nozzle 400 are arranged. Lavall nozzle 400 is used to increase the gas flow velocity to supersonic speed, so that the gas flow, gas molecule collision compression increases, and the gas and pipe wall friction heat generation are increased. At the same time, through the gas tight thread welding mode, the welding sealing effect and firmness are better. The principle of lavall nozzle 400 is that the compressible fluid of subsonic speed reaches the speed of sound at the narrowest cross section through the converging structure, and then the compressible fluid reaching the speed of sound continues to accelerate through the expanding structure, reaches supersonic speed

[0030] The gas supply chamber 100 is a sealed chamber, the lower section of which wraps the upper ends of the No. 1 vortex tube 201 and the No. 2 vortex tube 301, and the gas supply chamber 100 is provided with a shell 101. The CCUS supercritical carbon dioxide liquid cooling energy storage geothermal power well outlet pressure is 70 MPa at 200 degrees, and the gas supply chamber 100 simultaneously enters the No. 1 vortex tube 201 and the No. 2 vortex tube 301 after the supercritical carbon dioxide gas passes through the Laval nozzle 400. The supercritical carbon dioxide gas is compressed and collided by supercritical carbon dioxide molecules under high pressure in the No. 1 vortex tube 201 of the CCUS gas turbulent heating device. At this time, the inner wall of the No. 1 vortex tube 201 and the outer wall of the No. 2 vortex tube 301 rotate and rub at a clockwise ultrasonic speed of 10 million revolutions per minute. At the same time, the supercritical carbon dioxide gas enters the No. 2 vortex tube 301 under high pressure to rotate and rub at a counterclockwise ultrasonic speed of 10 million revolutions per minute. High-temperature and high-pressure supercritical expansion gas is formed, and the two high-speed and high-pressure rotating gases in different directions meet in the turbulent flow chamber 204 to form acceleration. The gas molecules are rubbed and collided at high speed to generate high temperature and high pressure to drive the turbine to generate power, improve the turbine power generation efficiency, reduce the gas energy consumption of the turbine, and provide green warmth for the city and help double carbon.

[0031] Working principle: use the principle of frictional heating of the Shenzhou spacecraft returning capsule entering the atmosphere. The speed of the Shenzhou spacecraft before entering the atmosphere is about 7.8 kilometers per second, which is 7800 meters per second in meters per second. During the process of the returning capsule entering the atmosphere, due to the violent friction with the atmosphere, high temperature will be generated. This temperature can reach about 1500℃, and in some cases, the temperature can be as high as 2000℃.

[0032] Based on the turbulent compression collision in fluid dynamics and the metal friction effect, the carbon dioxide geothermal wellhead pressure is 60-80 MPa, the temperature is 200℃, and the casing 244.5MM special casing is used. To calculate the flow rate of supercritical carbon dioxide in the 244.5 casing per second, the mass flow rate and the cross-sectional area of the pipeline are used. The given data is:

[0033] Mass flow rate: 1320 tons / hour

[0034] Pressure: 70 MPa

[0035] Temperature: 200 degrees Celsius

[0036] Pipeline diameter: 244.5 mm

[0037] Convert the mass flow rate from tons / hour to kg / s:

[0038]

[0039] The cross-sectional area of the pipe is recalculated with a pipe diameter of 244.5 mm, or 0.2445 m. The cross-sectional area A of a circular pipe is given by the formula:

[0040]

[0041] Substituting the diameter value:

[0042]

[0043] Using the mass flow and the cross-sectional area, the flow velocity v is calculated:

[0044]

[0045] Thus, the flow velocity of supercritical carbon dioxide in a 244.5 mm pipe is approximately 7785.11 m / s per second.

[0046] Comparison with the speed of a spacecraft: The speed of a spacecraft before entering the atmosphere is approximately 7.8 km / s (7800 m / s), which is very close to the flow velocity calculated above, indicating that the flow velocity of supercritical carbon dioxide is quite high.

[0047] Example Two: This example is basically the same as the previous example, except that the inner and outer walls of the No. 1 vortex tube 201 and the No. 2 vortex tube 301 are both roughened by a laser to increase friction and friction temperature, and to enhance the strength of the metal surface. Laser treatment of the metal surface has the following benefits, including improving the surface properties and physical properties of the material, and improving the wear resistance, corrosion resistance, and fatigue resistance of the parts. Through laser treatment, a modified layer with specific properties can be formed on the metal surface, thereby improving the overall performance of the metal. Laser passivation technology can form a dense oxide or nitride layer, effectively preventing the metal from contacting corrosive media in the environment, enhancing the corrosion resistance of the metal, and improving the performance and service life of the metal product.

[0048] It is important to note that the construction and arrangements of the application shown in the various exemplary embodiments are illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications can be made to the embodiments without departing from the novel teachings and advantages of the subject matter described herein (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters, mounting arrangements, use of materials, colors, orientations, locations, and the like). For example, the elements shown as integrally formed can be constructed of multiple parts or elements, the position of elements can be reversed or otherwise varied, and the nature or number of elements or positions can be modified or changed. Accordingly, all such modifications are intended to be included within the scope of the present inventive subject matter. The order or sequence of any process or method steps can be varied or re-sequenced without departing from the subject matter described herein. Any "open / closed" claims are intended to encompass the structure described herein, and not just the structure equivalent, but also the equivalent structure. Other substitutions, modifications, changes, and omissions can be made in the design, operating conditions, and arrangement of the exemplary embodiments without departing from the scope of the present inventive subject matter. Accordingly, the present inventive subject matter is not limited to particular embodiments described, but extends to any inventive subject matter within the scope of the appended claims.

[0049] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of an actual implementation can be described (i.e., those pertaining to the best mode for carrying out the inventive subject matter currently under consideration, or those that are not relevant to the implementation of the inventive subject matter).

[0050] It is to be understood that the development of the exemplary embodiments of this application can not be limited to the particular implementation described above, but can include any number of variations, modifications, or equivalents to the described implementations. For example, the order of the steps can be varied, or some steps can be omitted, or some steps can be performed in parallel. It is further understood that the use of relational terms such as first and second, and the like, if any, are used solely to distinguish one from another entity or action without necessarily implying a required order of such entities or actions or the necessity of such entities or actions.

[0051] It should be noted that the above examples are intended to be illustrative only and not limiting of the technical solutions of the present application, and although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present application, and all should be included in the scope of the claims of the present application.

Claims

1. A CCUS gas turbulent flow heating apparatus characterised in that: Including the air supply chamber (100), the first vortex assembly (200) is installed in the air supply chamber (100), the first vortex assembly (200) is provided with the second vortex assembly (300) through the gas tight butt welding, the first vortex assembly (200) and the second vortex assembly (300) are all provided with the Laval nozzle (400) through the gas tight butt welding.

2. A CCUS gas turbulent flow heating apparatus as claimed in claim 1, wherein: The first vortex assembly (200) further comprises a No.1 vortex tube (201) as a female vortex tube body, first ultra-supercritical carbon dioxide gas inlets (202) are formed on both sides of the upper end of the No.1 vortex tube, and the No.1 vortex tube (201) is centrally penetrated from top to bottom, and a flange (203) is mounted at the bottom of the No.1 vortex tube (201), and a turbulence generating chamber (204) is arranged in the inner cavity of the lower segment of the No.1 vortex tube (201).

3. A CCUS gas turbulent flow heating apparatus as claimed in claim 2, wherein: The second vortex assembly (300) further comprises a No.2 vortex tube (301) as a male vortex tube body arranged in the No.1 vortex tube (201), the No.2 vortex tube (301) is inserted from the top penetrating port of the No.1 vortex tube (201) and welded at the interface, and second ultra-supercritical carbon dioxide gas inlets (302) are formed on both sides of the upper end of the No.2 vortex tube (301).

4. A CCUS gas turbulent flow heating apparatus as claimed in claim 3, wherein: The second ultra-supercritical carbon dioxide gas inlets (302) are provided with Laval nozzles (400) through gas tight screw welding, and the Laval nozzles (400) are further welded to the first ultra-supercritical carbon dioxide gas inlets (202) through gas tight screw welding, and a total of four Laval nozzles (400) are arranged.

5. A CCUS gas turbulent flow heating apparatus as claimed in claim 4, wherein: The air supply chamber (100) is a sealed chamber, the upper ends of the No.1 vortex tube (201) and the No.2 vortex tube (301) are wrapped in the lower segment of the air supply chamber (100), the air supply chamber (100) is provided with a shell (101), and after the ultra-supercritical carbon dioxide gas passes through the Laval nozzles (400), the ultra-supercritical carbon dioxide gas enters the No.1 vortex tube (201) and the No.2 vortex tube (301) at the same time, at this time, the inner wall of the No.1 vortex tube (201) and the outer wall of the No.2 vortex tube (301) rotate and rub at a clockwise ultrasonic speed of 100 million revolutions per minute, and the ultra-supercritical carbon dioxide gas enters the No.2 vortex tube (301) at a counterclockwise ultrasonic speed of 100 million revolutions per minute under high pressure, forming high-temperature and high-pressure ultra-supercritical expansion gas, and the two high-speed and high-pressure rotating gases in different directions meet in the turbulence generating chamber (204) to form acceleration.

6. A CCUS gas turbulent flow heating apparatus as claimed in claim 2, wherein: The inner and outer walls of the No.1 vortex tube (201) and the No.2 vortex tube (301) are subjected to roughening treatment by a laser.

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