Cold and hot double-effect unit

Abstract

The invention relates to the technical field of heat exchange equipment, in particular to a cold and hot double-effect unit which comprises a suction cavity, a heat exchange cavity, a vortex tube, a fluid channel and a drainage cavity, the bottom end of the suction cavity is connected with the heat exchange cavity through a first electric control valve, a heat exchange tube is arranged in the heat exchange cavity, a liquid separation device is arranged at the bottom of the heat exchange cavity, and an exhaust pipe is arranged on the side face of the heat exchange cavity. An air inlet of the vortex tube is communicated with the exhaust pipe, the fluid channel is communicated with the heat exchange cavity, the longitudinal section of the heat exchange tube can be closely laid on the longitudinal section of the fluid channel, a hot air outlet of the vortex tube is communicated with the fluid channel, and the drainage cavity is located at the bottom end of the heat exchange cavity and communicated with the heat exchange cavity. The contact time of the heat exchange pipe and hot air / high-temperature steam can be prolonged, so that the heat recovery efficiency is improved, the device can be suitable for hot air / high-temperature steam generated by air-cooled and water-cooled coolers such as evaporative coolers, spray cooling towers or fin heat exchangers, the application range of the device is wide, and heat recovery can be carried out on the device.

Description

Technical Field

[0001] This invention relates to the field of heat exchange equipment, and in particular to a dual-effect cooling and heating unit. Background Technology

[0002] Compressors, boilers, engines, hydraulic systems, and high-power electrical equipment generate a large amount of heat during operation. Overheating can lead to decreased material strength and equipment damage. Therefore, coolers are needed to protect the equipment. Industrial coolers are core heat exchange devices for maintaining the safe and efficient operation of production systems. Their main function is to remove waste heat from process fluids (gas or liquid) and transfer it to the environment, thereby precisely controlling the process temperature.

[0003] Industrial coolers can be broadly classified into air-cooled coolers and water-cooled coolers. Air-cooled coolers use airflow to transfer heat, while water-cooled coolers use water evaporation to absorb heat and remove heat from the equipment. The hot air / high-temperature steam generated by the cooler is at a relatively high temperature, and its recovery is of great significance for improving heat utilization efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide a dual-effect cooling and heating unit to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: It includes an intake chamber, a heat exchange chamber, a vortex tube, a fluid channel, and a drain chamber. The intake chamber is a cavity-shaped component that can draw in hot air or high-temperature water mist. The bottom of the intake chamber is connected to the heat exchange chamber via a first electrically controlled valve. A heat exchange tube is installed inside the heat exchange chamber. A liquid separation device is installed at the bottom of the heat exchange chamber. An exhaust pipe with a pressure relief valve is installed on the side of the heat exchange chamber. The air inlet of the vortex tube is connected to the exhaust pipe. The fluid channel surrounds the heat exchange tube and is fixed to the heat exchange chamber, and the fluid channel is connected to the end of the heat exchange tube. The longitudinal section of the heat exchange tube is triangular and can be densely covered with fluid channels. The longitudinal section of the channel has the hot gas outlet of the vortex tube connected to the fluid channel. The drainage chamber is located at the bottom of the heat exchange chamber and is connected to the heat exchange chamber. A second solenoid valve and a third solenoid valve are respectively installed at both ends of the drainage chamber. The control method of the electrical components such as the first solenoid valve, the second solenoid valve and the third solenoid valve is to achieve automatic control through a controller, specifically a solenoid one-way valve. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the art. Since this invention is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail in this invention.

[0006] To optimize the above technical solution, the following measures are further taken: connecting pipes are respectively provided at both ends of the heat exchange tube. The connecting pipes are fixed to the heat exchange cavity and connected to the fluid channel. The connecting pipes and the heat exchange tubes form a rotating pair. The purpose of this structure is to enable a certain degree of mobility between the heat exchange tubes and the heat exchange cavity. When hot air or high-temperature water mist passes through the gap between the heat exchange cavity, the hot air / high-temperature water mist can push the heat exchange tubes to tilt, making the gap between the heat exchange tubes narrower. This helps to prolong the passage time of hot air / high-temperature water mist in the gap, thereby improving the heat exchange efficiency between the hot air and the heat exchange tubes.

[0007] As a further improvement to the above technical solution: the intake chamber includes an air inlet pipe, a compression chamber, a hydraulic cylinder and a piston. The air inlet pipe is located above the compression chamber and communicates with the compression chamber. The hydraulic cylinder is installed on the side of the compression chamber. The piston is located inside the compression chamber and forms a sliding pair with the compression chamber. The piston and the compression chamber are shaped to match. The piston and the movable end of the hydraulic cylinder are fixed. Both ends of the compression chamber are respectively connected to a heat exchange chamber.

[0008] As a further improvement to the technical solution: the liquid separation device includes a rotating block and a permeable steel. The rotating block refers to a rotatable block-shaped component, and the permeable steel refers to a porous metal material with uniformly distributed mesh micropores, which has both air permeability and high strength. Its purpose is to allow small droplets to collide with each other and form large droplets under the action of airflow through the micropores. One end of the exhaust pipe is connected to the vortex tube, and the other end is located in the heat exchange chamber. The rotating block is sleeved on the exhaust pipe and forms a rotating pair with the exhaust pipe. An air inlet gap is provided on the side of the rotating block and connected to the exhaust pipe. Hot air can enter the exhaust pipe through the air inlet gap. The permeable steel is located in a ring shape on the side of the rotating block, and the shape of the permeable steel matches the gap between the rotating block and the heat exchange chamber.

[0009] As an improvement to the aforementioned technical solution, the liquid separation device further includes a magnetic ring and a drive motor. The magnetic ring refers to a ring-shaped component made of magnets. The magnetic ring is fixed to the rotating block inside the breathable steel. The drive motor is fixed to the heat exchange chamber. A rotating disk is provided on the shaft of the drive motor. The rotating disk and the magnetic ring attract each other, thereby driving the rotating block to rotate. The rotating disk refers to a rotatable disk-shaped component. In specific implementations, magnets can be embedded in the rotating disk, or the rotating disk can be made of magnetic material or mainly made of magnetic material to achieve mutual attraction between the rotating disk and the magnetic ring. Magnets are existing technology and are known to those skilled in the art. Therefore, the specific material and working principle of the magnets will not be further explained. The attraction between the magnetic ring and the rotating disk can be adjusted by changing the magnet material and magnet specifications. During implementation, it should be noted that the Curie point temperature of the magnet should be greater than the ambient temperature of the magnet.

[0010] Furthermore, the top of the rotating block is conical and the sides of the rotating block are sloping. The conical structure can prevent liquefied water droplets from accumulating on the top surface of the rotating block, while the sloping design helps water droplets move along the sloping surface when the rotating block rotates rapidly.

[0011] As can be seen from the above description of the structure of the present invention, compared with the prior art, the present invention has the following advantages:

[0012] A. Unique movable close-packed heat exchange tubes can increase the contact time between the heat exchange tubes and hot air / high-temperature steam, thereby improving heat recovery efficiency;

[0013] B. It can be applied to hot air / high-temperature steam generated by air-cooled or water-cooled coolers such as evaporative coolers, spray cooling towers or finned heat exchangers. The equipment has a wide range of applications and can recover heat from it.

[0014] C. It has low requirements for the purity of the recovery medium and can effectively separate small droplets carried in hot air / high-temperature steam;

[0015] D. It can generate both hot and cold air simultaneously. The hot air can be used for heating, while the cold air can be used for cooling other equipment, resulting in high efficiency in heat recovery and utilization. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention (first perspective).

[0018] Figure 2 This is a three-dimensional structural diagram of the present invention (second perspective).

[0019] Figure 3 This is a schematic diagram of the cross-sectional structure of the present invention;

[0020] Figure 4 for Figure 3 Enlarged view of local structure;

[0021] Figure 5 This is a schematic diagram of the three-dimensional structure of the heat exchange tube;

[0022] Figure 6 This is a schematic diagram of the cross-sectional structure of the heat exchange tube;

[0023] In the diagram: Inhalation chamber-100, intake pipe-101, compression chamber-102, oil cylinder-103, piston-104, heat exchange chamber-200, first solenoid valve-201, heat exchange tube-202, liquid separator-203, pressure relief valve-204, exhaust pipe-205, connecting pipe-206, rotating block-207, breathable steel-208, intake gap-209, magnetic ring-2010, drive motor-2011, rotating disk-2012, vortex tube-300, fluid channel-400, drain chamber-500, second solenoid valve-501, third solenoid valve-502 Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] Example 1

[0026] Please see Figure 1-6 This invention provides a dual-effect cooling and heating unit, including an intake chamber 100, a heat exchange chamber 200, a vortex tube 300, a fluid channel 400, and a drain chamber 500. The intake chamber 100 includes an intake pipe 101, a compression chamber 102, a hydraulic cylinder 103, and a piston 104. The intake pipe 101 is located above the compression chamber 102 and communicates with the compression chamber 102. The hydraulic cylinder 103 is installed on the side of the compression chamber 102. The piston 104 is located inside the compression chamber 102 and forms a sliding pair with the compression chamber 102. The piston 104 is fixed to the movable end of the hydraulic cylinder 103. Both ends of the compression chamber 102 are respectively connected to a heat exchange chamber 200.

[0027] The bottom end of the suction chamber 100 is connected to the heat exchange chamber 200 via a first electrically controlled valve 201. A heat exchange tube 202 is installed inside the heat exchange chamber 200. A liquid separation device 203 is installed at the bottom of the heat exchange chamber 200. An exhaust pipe 205 with a pressure relief valve 204 is installed on the side of the heat exchange chamber 200. The liquid separation device 203 includes a rotating block 207, a breathable steel 208, a magnetic ring 2010, and a drive motor 2011. One end of the exhaust pipe 205 is connected to the vortex tube 300, and the other end is located inside the heat exchange chamber 200. The rotating block 207 is sleeved on the exhaust pipe 205, forming a rotating pair with the exhaust pipe 205. The top of the rotating block 207 is... The rotating block 207 is conical and has a sloping side. The side of the rotating block 207 is provided with an air intake gap 209 that communicates with the exhaust pipe 205. The ventilated steel 208 is located in a ring shape on the side of the rotating block 207. The shape of the ventilated steel 208 matches the gap between the rotating block 207 and the heat exchange chamber 200. The magnetic ring 2010 is disposed inside the ventilated steel 208 and fixed to the rotating block 207. The drive motor 2011 is fixed to the heat exchange chamber 200. A rotating disk 2012 is provided on the shaft of the drive motor 2011. The rotating disk 2012 and the magnetic ring 2010 attract each other, thereby driving the rotating block 207 to rotate.

[0028] The air inlet of the vortex tube 300 is connected to the exhaust pipe 205;

[0029] The fluid channel 400 surrounds the heat exchange tube 202 and is fixed to the heat exchange chamber 200, and the fluid channel 400 is connected to the end of the heat exchange tube 202. The longitudinal section of the heat exchange tube 202 can be closely covered with the longitudinal section of the fluid channel 400. The hot gas outlet of the vortex tube 300 is connected to the fluid channel 400.

[0030] The drainage chamber 500 is located at the bottom of the heat exchange chamber 200 and communicates with the heat exchange chamber 200. A second solenoid valve 501 and a third solenoid valve 502 are respectively provided at both ends of the drainage chamber 500.

[0031] Example 2

[0032] Please see Figure 1-6 This invention provides a dual-effect cooling and heating unit, including an intake chamber 100, a heat exchange chamber 200, a vortex tube 300, a fluid channel 400, and a drain chamber 500. The intake chamber 100 includes an intake pipe 101, a compression chamber 102, a hydraulic cylinder 103, and a piston 104. The intake pipe 101 is located above the compression chamber 102 and communicates with the compression chamber 102. The hydraulic cylinder 103 is installed on the side of the compression chamber 102. The piston 104 is located inside the compression chamber 102 and forms a sliding pair with the compression chamber 102. The piston 104 is fixed to the movable end of the hydraulic cylinder 103. Both ends of the compression chamber 102 are respectively connected to a heat exchange chamber 200.

[0033] The bottom end of the suction chamber 100 is connected to the heat exchange chamber 200 via a first electrically controlled valve 201. A heat exchange tube 202 is installed inside the heat exchange chamber 200. Connecting pipes 206 are installed at both ends of the heat exchange tube 202. The connecting pipes 206 are fixed to the heat exchange chamber 200 and communicate with the fluid channel 400. The connecting pipes 206 and the heat exchange tube 202 form a rotating pair. A liquid separation device 203 is installed at the bottom of the heat exchange chamber 200. An exhaust pipe 205 with a pressure relief valve 204 is installed on the side of the heat exchange chamber 200. The liquid separation device 203 includes a rotating block 207, a breathable steel 208, a magnetic ring 2010, and a drive motor 2011. One end of the exhaust pipe 205 communicates with the vortex tube 300, and the other end is located inside the heat exchange chamber 200. A rotating block 207 is fitted onto an exhaust pipe 205, forming a rotating pair with the exhaust pipe 205. The top of the rotating block 207 is conical, and the sides of the rotating block 207 are inclined. An air intake gap 209 communicating with the exhaust pipe 205 is provided on the side of the rotating block 207. A permeable steel 208 is located in a ring shape on the side of the rotating block 207. The shape of the permeable steel 208 matches the gap between the rotating block 207 and the heat exchange chamber 200. A magnetic ring 2010 is disposed inside the permeable steel 208 and fixed to the rotating block 207. A drive motor 2011 is fixed to the heat exchange chamber 200. A rotating disk 2012 is provided on the shaft of the drive motor 2011. The rotating disk 2012 and the magnetic ring 2010 attract each other, thereby driving the rotating block 207 to rotate.

[0034] The air inlet of the vortex tube 300 is connected to the exhaust pipe 205;

[0035] The fluid channel 400 surrounds the heat exchange tube 202 and is fixed to the heat exchange chamber 200, and the fluid channel 400 is connected to the end of the heat exchange tube 202. The longitudinal section of the heat exchange tube 202 can be closely covered with the longitudinal section of the fluid channel 400. The hot gas outlet of the vortex tube 300 is connected to the fluid channel 400.

[0036] The drainage chamber 500 is located at the bottom of the heat exchange chamber 200 and communicates with the heat exchange chamber 200. A second solenoid valve 501 and a third solenoid valve 502 are respectively provided at both ends of the drainage chamber 500.

[0037] Working principle: For Embodiment 1 and Embodiment 2, the air inlet pipe 101 is connected to the pipe for inputting hot air / high-temperature water mist. The fluid channel 400 inputs the air or liquid that needs to be preheated. After the hot air / high-temperature water mist enters the compression chamber 102, it will be pushed into the compression chamber 102. Since the heat exchange tube 202 has a compact structure, the hot air / high-temperature water mist can exchange heat with the fluid in the fluid channel 400 when passing through the heat exchange tube 202 to achieve preheating and perform the first heat recovery.

[0038] The hot air / high-temperature water mist continues to descend under the push of piston 104, passing through liquid separation device 203. During this process, drive motor 2011 rotates continuously. Due to the mutual attraction between rotating disk 2012 and magnetic ring 2010, magnetic ring 2010 and rotating block 207 can continue to rotate within heat exchange chamber 200. When the hot air / high-temperature water mist passes through the microporous structure of permeable steel 208, the small droplets within the hot air / high-temperature water mist can collide with each other and liquefy. Simultaneously, due to the continuous rotation of permeable steel 208... This centrifugal force also helps the small droplets inside the breathable steel 208 to collide and liquefy. The liquefied water moves downward under the action of gravity and is eventually collected in the drain chamber 500. When draining, the second solenoid valve 501 is closed and the third solenoid valve 502 is opened, which can quickly empty the liquefied water in the drain chamber 500. Then, the second solenoid valve 501 is opened and the third solenoid valve 502 is closed, so that the collection and separation of liquefied water can continue in the drain chamber 500. At this time, the hot air that has been separated from the small droplets fills the lower part of the heat exchange chamber 200.

[0039] As the piston 104 continues to operate, the pressure inside the heat exchange chamber 200 will continuously increase. When the pressure reaches the preset value of the pressure relief valve 204, the hot air will enter the vortex tube 300 through the pressure relief valve 204 along the exhaust pipe 205. The vortex tube 300 will separate the pressurized hot air into hot air at a higher temperature and cold air. The hot air enters the middle of the fluid channel 400 to heat the heat exchange tube 202. Finally, the hot air that has completed heat exchange is discharged from the exhaust channel opened in the middle of the fluid channel 400, thus completing the second heat recovery.

[0040] The main difference between Embodiment 2 and Embodiment 1 lies in the structure of the heat exchange tube 202. In Embodiment 2, the end of the heat exchange tube 202 is connected to the heat exchange chamber 200 via a connecting pipe 206. Therefore, there is a certain degree of mobility between the heat exchange tube 202 and the connecting pipe 206. When the closely spaced heat exchange tubes 202 are impacted by hot air / high-temperature water mist drawn in from the suction chamber 100, the pressurized hot air / high-temperature water mist can push the heat exchange tubes 202 and tilt them as it passes through the gaps between the heat exchange tubes 202. At this time, the gaps between the heat exchange tubes 202 will become irregular and the local gaps will become narrower, which helps to prolong the time for the hot air / high-temperature water mist to pass through the heat exchange tubes 202, thereby improving the heat exchange efficiency between the heat exchange tubes 202 and the hot air / high-temperature water mist.

[0041] In this invention, the control of each electrical component is achieved through an automatic controller. The controller circuit can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the field. Furthermore, since this invention is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail.

[0042] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0043] Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features; they have no practical meaning. Thus, a feature defined as "first," "second," and "third" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0044] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0045] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A dual-effect cooling and heating unit, characterized in that, include: Inhalation chamber (100); The heat exchange chamber (200) is connected to the bottom of the suction chamber (100) via a first electrically controlled valve (201). A heat exchange tube (202) is installed inside the heat exchange chamber (200). A liquid separation device (203) is installed at the bottom of the heat exchange chamber (200). An exhaust pipe (205) with a pressure relief valve (204) is installed on the side of the heat exchange chamber (200). A vortex tube (300) has its air inlet connected to an exhaust pipe (205); A fluid channel (400) surrounds and fixes the heat exchange tube (202) and the heat exchange chamber (200), and the fluid channel (400) is connected to the end of the heat exchange tube (202). The longitudinal section of the heat exchange tube (202) can be closely covered with the longitudinal section of the fluid channel (400). The hot gas outlet of the vortex tube (300) is connected to the fluid channel (400). The heat exchange tube (202) is provided with connecting pipes (206) at both ends. The connecting pipes (206) are fixed to the heat exchange chamber (200) and are connected to the fluid channel (400). The connecting pipes (206) and the heat exchange tube (202) form a rotating pair. The drain chamber (500) is located at the bottom of the heat exchange chamber (200) and communicates with the heat exchange chamber (200). A second solenoid valve (501) and a third solenoid valve (502) are respectively provided at both ends of the drain chamber (500).

2. The dual-effect cooling and heating unit according to claim 1, characterized in that: The intake chamber (100) includes an intake pipe (101), a compression chamber (102), a hydraulic cylinder (103), and a piston (104). The air intake pipe (101) is located above the compression chamber (102) and communicates with the compression chamber (102); The oil cylinder (103) is installed on the side of the compression chamber (102), and the piston (104) is located inside the compression chamber (102) and forms a moving pair with the compression chamber (102). The piston (104) is fixed to the movable end of the oil cylinder (103), and the two ends of the compression chamber (102) are respectively connected to a heat exchange chamber (200).

3. A dual-effect cooling and heating unit according to claim 1, characterized in that: The liquid separation device (203) includes a rotating block (207) and a permeable steel (208); One end of the exhaust pipe (205) is connected to the vortex tube (300) and the other end is located in the heat exchange chamber (200). The rotating block (207) is sleeved on the exhaust pipe (205) and forms a rotating pair with the exhaust pipe (205). The side of the rotating block (207) is provided with an air intake gap (209) that is connected to the exhaust pipe (205). The permeable steel (208) is located in a ring shape on the side of the rotating block (207), and the shape of the permeable steel (208) matches the gap between the rotating block (207) and the heat exchange chamber (200).

4. A dual-effect cooling and heating unit according to claim 3, characterized in that: The liquid separation device (203) also includes a magnetic ring (2010) and a drive motor (2011), wherein the magnetic ring (2010) is disposed inside the ventilated steel (208) and fixed to the rotating block (207); The drive motor (2011) is fixed to the heat exchange chamber (200), and a rotating disk (2012) is provided on the shaft of the drive motor (2011). The rotating disk (2012) and the magnet ring (2010) attract each other, thereby driving the rotating block (207) to rotate.

5. A dual-effect cooling and heating unit according to claim 4, characterized in that: The top of the rotating block (207) is conical and the sides of the rotating block (207) are inclined.

6. A dual-effect cooling and heating unit according to any one of claims 1-5, characterized in that: The connecting pipe (206) forms a rotating pair with the heat exchange pipe (202) through a torsion spring.

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