Liquid carbon dioxide production cooling waste heat utilization device

Abstract

The utility model is suitable for the technical field of liquid carbon dioxide production, and provides a liquid carbon dioxide production cooling waste heat utilization device which comprises a supporting plate, and two supporting frames are welded to the top of the supporting plate. According to the utility model, the magnetic suspension centrifugal heat pump can increase low-temperature waste heat to medium-high temperature and is matched with the heat preservation box to realize heat storage, and compared with a traditional mode of directly discharging waste heat by an air cooling system and a water cooling system, energy waste is greatly reduced, the comprehensive utilization rate of energy is effectively increased, and the production cost and carbon emission pressure of an enterprise are reduced; wherein the cold water pipe, the connecting water pipe, the hot water pipe, the circulating water pipe and the spiral groove are matched with one another, so that cooling water can circularly flow between the carbon dioxide liquid processing tank and the carbon dioxide gasification processing tank, heat transfer and recovery are achieved, consumption of water resources is reduced, heat pollution caused by waste heat emission is avoided, and energy conservation and emission reduction are achieved. And the energy-saving and environment-friendly development requirements are met.

Description

Technical Field

[0001] This utility model belongs to the field of liquid carbon dioxide production technology, and in particular relates to a device for utilizing waste heat from cooling during liquid carbon dioxide production. Background Technology

[0002] In the industrial production sector, the production process of liquid carbon dioxide involves complex thermodynamic conversion and energy management. The recovery of waste heat generated during the cooling stage not only depends on the mechanical structure design, but also requires precise control and intelligent management of electrical equipment. By deeply integrating electrical equipment with mechanical structure, the shortcomings of traditional systems in terms of automation, reliability and energy management can be solved.

[0003] Most existing liquid carbon dioxide production companies use rather crude methods to treat waste heat from cooling. Some companies simply use air-cooling or water-cooling systems to directly release the waste heat into the environment. This not only results in the heat being wasted, but may also have a negative impact on the surrounding ecological environment due to thermal pollution. Therefore, a waste heat utilization device for liquid carbon dioxide production is needed to solve the above problems. Utility Model Content

[0004] The purpose of this utility model embodiment is to provide a device for utilizing waste heat from the cooling process of liquid carbon dioxide production, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A device for utilizing waste heat from cooling during liquid carbon dioxide production includes a support plate. A support frame is welded to the top of the support plate. There are two support frames. The tops of the two support frames are respectively connected to a liquid carbon dioxide processing tank and a carbon dioxide gasification processing tank. An energy circulation component is connected between the liquid carbon dioxide processing tank and the carbon dioxide gasification processing tank. Spiral grooves are formed on the inner walls of both the liquid carbon dioxide processing tank and the carbon dioxide gasification processing tank.

[0007] The energy circulation assembly includes a condenser box with a condenser at the bottom. A first water pump is connected to one side of the condenser box, and a cold water pipe is connected to one end of the first water pump. One end of the cold water pipe is connected to one end of one of the spiral grooves, and the other end of the spiral groove is connected to a connecting water pipe. One end of the connecting water pipe is connected to a magnetic levitation centrifugal heat pump, and one end of the magnetic levitation centrifugal heat pump is connected to an insulation box. A second water pump is connected to one side of the insulation box, and a hot water pipe is connected to one end of the second water pump. The hot water pipe is connected to one end of another spiral groove, and the other end of the spiral groove is connected to a circulating water pipe. One end of the circulating water pipe is connected to a third water pump.

[0008] In a further technical solution, the top of the support plate is connected to the bottom of the insulation box and the condenser, and one end of the third water pump is connected to one side of the condenser box.

[0009] In a further technical solution, a water inlet is connected to the top of the condenser box, and the bottom of the condenser box is connected to the top of the condenser.

[0010] In a further technical solution, a suction pump is connected to the bottom of the carbon dioxide liquid processing tank, one end of the suction pump is connected to a connecting pipe, and one end of the connecting pipe is connected to the top of the carbon dioxide vaporization processing tank.

[0011] In a further technical solution, a pressure device is connected to the top of the carbon dioxide liquid processing tank, and an injection port is provided on the top of the carbon dioxide liquid processing tank.

[0012] In a further technical solution, the number of spiral grooves is two, with the cold water pipe connected to the connecting water pipe through one spiral groove, and the hot water pipe connected to the circulating water pipe through the other spiral groove.

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

[0014] This invention efficiently recovers waste heat generated during the cooling process of a carbon dioxide liquid processing tank. A magnetic levitation centrifugal heat pump can raise the low-temperature waste heat to medium-high temperatures, and the heat is stored in conjunction with an insulation box. Compared with the traditional air-cooling and water-cooling systems that directly discharge waste heat, this invention significantly reduces energy waste, effectively improves the comprehensive energy utilization rate, and reduces enterprise production costs and carbon emission pressure. The cold water pipe, connecting water pipe, hot water pipe, circulating water pipe and spiral groove work together to allow the cooling water to circulate between the carbon dioxide liquid processing tank and the carbon dioxide vaporization processing tank. This not only realizes the transfer and recovery of heat, but also reduces water consumption and avoids thermal pollution caused by waste heat discharge, which meets the development needs of energy conservation and environmental protection.

[0015] This invention features spiral grooves on the inner walls of the carbon dioxide liquid processing tank and the carbon dioxide vaporization processing tank, which increase the contact area between the tank and the cooling water, enhancing the heat exchange effect and making the liquid processing and vaporization of carbon dioxide more efficient and stable. Simultaneously, the suction pump and connecting pipes ensure stable delivery of liquid carbon dioxide to the vaporization processing tank, while the pressure booster ensures stable pressure within the liquid processing tank. The coordinated work of all components optimizes the entire production process, improving the production efficiency and product quality of liquid carbon dioxide. The use of a magnetic levitation centrifugal heat pump, compared to traditional heat pumps, reduces mechanical friction through magnetic levitation technology, offering advantages such as high efficiency, low energy consumption, low noise, and long service life, thus ensuring the stable operation of the waste heat utilization system.

[0016] To more clearly illustrate the structural features and effects of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0017] Figure 1 This is a frontal three-dimensional structural diagram of the main body of this utility model;

[0018] Figure 2 This is a top-view three-dimensional structural diagram of the main body of this utility model;

[0019] Figure 3 This is a three-dimensional cross-sectional view of the main body of this utility model.

[0020] In the diagram: 1. Support plate; 2. Support frame; 3. Liquid carbon dioxide processing tank; 4. Gasification processing tank; 5. Energy circulation component; 6. Spiral groove; 7. Suction pump; 8. Connecting pipe; 9. Pressure booster; 10. Water inlet; 11. Filling port; 501. Condensation box; 502. Condenser; 503. First water pump; 504. Cold water pipe; 505. Connecting water pipe; 506. Magnetic levitation centrifugal heat pump; 507. Insulation box; 508. Second water pump; 509. Hot water pipe; 510. Circulating water pipe; 511. Third water pump. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0022] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0023] like Figures 1-3 As shown, this utility model embodiment provides a liquid carbon dioxide production cooling waste heat utilization device, including a support plate 1, a support frame 2 welded to the top of the support plate 1, two support frames 2, the tops of the two support frames 2 are respectively connected to a liquid carbon dioxide processing tank 3 and a carbon dioxide gasification processing tank 4, an energy circulation component 5 is connected between the liquid carbon dioxide processing tank 3 and the carbon dioxide gasification processing tank 4, and spiral grooves 6 are opened on the inner walls of both the liquid carbon dioxide processing tank 3 and the carbon dioxide gasification processing tank 4.

[0024] The energy circulation assembly 5 includes a condenser box 501, a condenser 502 at the bottom of the condenser box 501, a first water pump 503 connected to one side of the condenser box 501, a cold water pipe 504 connected to one end of the first water pump 503, a spiral groove 6 connected to one end of the cold water pipe 504, a connecting water pipe 505 connected to the other end of the spiral groove 6, a magnetic levitation centrifugal heat pump 506 connected to one end of the magnetic levitation centrifugal heat pump 506, an insulation box 507 connected to one side of the insulation box 507, a second water pump 508 connected to one end of the second water pump 508, a hot water pipe 509 connected to one end of another spiral groove 6, a circulating water pipe 510 connected to the other end of the spiral groove 6, and a third water pump 511 connected to one end of the circulating water pipe 510.

[0025] In this embodiment, high-temperature carbon dioxide gas exchanges heat with cooling water in the spiral groove 6 inside the carbon dioxide liquid processing tank 3. The cooling water absorbs heat and its temperature rises. It then flows out from the other end of the spiral groove 6 through the connecting water pipe 505 and enters the magnetic levitation centrifugal heat pump 506. The magnetic levitation centrifugal heat pump 506 heats the cooling water that has absorbed waste heat, raising the low-temperature waste heat to medium-high temperature heat energy. The treated hot water flows into the insulation box 507 for storage. When the carbon dioxide gasification processing tank 4 needs heat, the second water pump 508 extracts the hot water from the insulation box 507 and sends it through the hot water pipe 509 into the spiral groove 6 on the inner wall of the carbon dioxide gasification processing tank 4. The hot water exchanges heat with the liquid carbon dioxide in the tank inside the spiral groove 6. After releasing heat, the temperature drops and flows out from the other end of the spiral groove 6 through the circulating water pipe 510. It is then sent back to the condenser box 501 by the third water pump 511, completing one water cycle.

[0026] like Figure 1 , Figure 2 and Figure 3 As shown, specifically, the top of the support plate 1 is connected to the bottom of the insulation box 507 and the condenser 502, and one end of the third water pump 511 is connected to one side of the condenser box 501.

[0027] The top of the condenser box 501 is connected to a water inlet 10, and the bottom of the condenser box 501 is connected to the top of the condenser 502.

[0028] A suction pump 7 is connected to the bottom of the carbon dioxide liquid processing tank 3. One end of the suction pump 7 is connected to a connecting pipe 8, and one end of the connecting pipe 8 is connected to the top of the carbon dioxide vaporization processing tank 4.

[0029] A pressure device 9 is connected to the top of the carbon dioxide liquid processing tank 3, and an injection port 11 is opened on the top of the carbon dioxide liquid processing tank 3;

[0030] There are two spiral grooves 6. The cold water pipe 504 is connected to the connecting water pipe 505 through one of the spiral grooves 6, and the hot water pipe 509 is connected to the circulating water pipe 510 through the other spiral groove 6.

[0031] In this embodiment, carbon dioxide gas is injected into the carbon dioxide liquid processing tank 3 through the injection port 11. The pressurizer 9 is activated to pressurize the gas inside the tank, bringing it to the conditions for liquid conversion. Simultaneously, cooling water in the condenser 501, driven by the first water pump 503, flows through the cold water pipe 504 into the spiral groove 6 on the inner wall of the carbon dioxide liquid processing tank 3. Inside the carbon dioxide vaporization processing tank 4, the liquid carbon dioxide absorbs heat from the hot water in the spiral groove 6, undergoing a vaporization reaction. The suction pump 7, through the connecting pipe 8, transports the processed liquid carbon dioxide from the carbon dioxide liquid processing tank 3 to the top of the carbon dioxide vaporization processing tank 4, continuously providing raw materials for the vaporization process, ultimately producing the required gaseous carbon dioxide. The carbon dioxide liquid processing tank 3 and the carbon dioxide vaporization processing tank 4 are equipped with… Multiple sensors are installed to collect real-time temperature and pressure data, as well as cooling water flow rate and temperature, inside the carbon dioxide liquid processing tank 3 and the carbon dioxide vaporization processing tank 4. These data are then transmitted to the control system. Based on preset process parameters, the system automatically adjusts the operating power of the magnetic levitation centrifugal heat pump, the start / stop and flow rate of the water pump. When the temperature inside the carbon dioxide liquid processing tank 3 is detected to be too high, the flow rate of the first water pump 503 is automatically increased to enhance cooling. When the water temperature inside the insulation box 507 reaches the set threshold, the magnetic levitation centrifugal heat pump 506 is controlled to stop working to avoid energy waste.

[0032] The working principle of this utility model is as follows: First, carbon dioxide gas is injected into the carbon dioxide liquid processing tank 3 through the filling port 11. The pressurizer 9 is activated to pressurize the gas in the tank, making it reach the conditions for liquid conversion. At the same time, the cooling water in the condenser 501, under the action of the first water pump 503, flows into the spiral groove 6 on the inner wall of the carbon dioxide liquid processing tank 3 through the cold water pipe 504. In the carbon dioxide liquid processing tank 3, the high-temperature carbon dioxide gas exchanges heat with the cooling water in the spiral groove 6. The cooling water absorbs heat and its temperature rises. It then flows out from the other end of the spiral groove 6 through the connecting water pipe 505, and then enters the magnetic levitation centrifugal heat pump 506. The magnetic levitation centrifugal heat pump 506 heats up the cooling water that has absorbed waste heat, turning the low-temperature waste heat into a liquid. The heat is converted into medium-high temperature heat energy. The treated hot water flows into the insulation box 507 for storage. Finally, when the carbon dioxide vaporization processing tank 4 needs heat, the second water pump 508 draws the hot water out of the insulation box 507 and sends it through the hot water pipe 509 into the spiral groove 6 on the inner wall of the carbon dioxide vaporization processing tank 4. The hot water exchanges heat with the liquid carbon dioxide in the tank in the spiral groove 6. After releasing heat, the temperature drops and flows out from the other end of the spiral groove 6 through the circulating water pipe 510. It is then sent back to the condenser box 501 by the third water pump 511, completing one water cycle.

[0033] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A liquid carbon dioxide production cooling waste heat utilization device comprising a support plate (1), characterized in that: The top of the support plate (1) is welded with a support frame (2). There are two support frames (2). The tops of the two support frames (2) are respectively connected to a carbon dioxide liquid processing tank (3) and a carbon dioxide gasification processing tank (4). An energy circulation component (5) is connected between the carbon dioxide liquid processing tank (3) and the carbon dioxide gasification processing tank (4). Spiral grooves (6) are opened on the inner walls of the carbon dioxide liquid processing tank (3) and the carbon dioxide gasification processing tank (4). The energy circulation component (5) includes a condenser box (501), a condenser (502) at the bottom of the condenser box (501), a first water pump (503) connected to one side of the condenser box (501), a cold water pipe (504) connected to one end of the first water pump (503), a spiral groove (6) connected to one end of one of the spiral grooves (6), a connecting water pipe (505) connected to the other end of the connecting water pipe (505), and a magnetic levitation device connected to one end of the connecting water pipe (505). A floating centrifugal heat pump (506) is provided. One end of the magnetic levitation centrifugal heat pump (506) is connected to an insulation box (507). A second water pump (508) is connected to one side of the insulation box (507). One end of the second water pump (508) is connected to a hot water pipe (509). The hot water pipe (509) is connected to one end of another spiral groove (6). The other end of the spiral groove (6) is connected to a circulating water pipe (510). One end of the circulating water pipe (510) is connected to a third water pump (511).

2. The liquid carbon dioxide production and cooling waste heat utilization apparatus according to claim 1, characterized by: The top of the support plate (1) is connected to the bottom of the insulation box (507) and the condenser (502), and one end of the third water pump (511) is connected to one side of the condenser box (501).

3. The liquid carbon dioxide production and cooling waste heat utilization apparatus according to claim 1, characterized by: The top of the condenser box (501) is connected to a water inlet (10), and the bottom of the condenser box (501) is connected to the top of the condenser (502).

4. The liquid carbon dioxide production cooling waste heat utilization device according to claim 1, characterized in that: The bottom of the carbon dioxide liquid processing tank (3) is connected to a suction pump (7), one end of the suction pump (7) is connected to a connecting pipe (8), and one end of the connecting pipe (8) is connected to the top of the carbon dioxide vaporization processing tank (4).

5. The liquid carbon dioxide production and waste heat utilization apparatus according to claim 1, characterized by: The top of the carbon dioxide liquid processing tank (3) is connected to a pressure device (9), and the top of the carbon dioxide liquid processing tank (3) is provided with a filling port (11).

6. The liquid carbon dioxide production and waste heat utilization apparatus according to claim 1, characterized by: There are two spiral grooves (6). The cold water pipe (504) is connected to the connecting water pipe (505) through one of the spiral grooves (6), and the hot water pipe (509) is connected to the circulating water pipe (510) through the other spiral groove (6).

Images