Air energy heat pump steam unit

Abstract

The present application relates to the technical field of air-energy heat pump equipment, and specifically discloses an air-energy heat pump steam unit, comprising: an evaporator, a compressor, a plate exchanger, and a throttling device. The evaporator is connected to the compressor, the plate exchanger, and the throttling device in sequence through a pipeline. The plate exchanger for heat exchange is arranged in an insulated water tank, and the insulated water tank is connected to a steam generator for vaporizing the liquid. The purpose of the present invention is to provide an air-energy heat pump steam unit to solve the problem that the existing air-energy heat pump cannot meet the specific demand for higher temperature, and to improve the heat conversion, collection and reuse of the air-energy heat pump.

Description

Technical Field

[0001] The present invention belongs to the technical field of air energy heat pump equipment, and in particular relates to an air energy heat pump steam unit. Background Art

[0002] When it comes to clean energy, most people first think of wind, solar power, and water. In recent years, with the increasing energy consumption for building heating, cooling, and hot water, "air energy" has become a new area of increasing attention in China's clean energy development. "Air energy" refers to the low-grade thermal energy contained in the air, and is classified as a clean energy source along with hydropower, wind power, solar power, and tidal power. In 2009, the European Union passed a directive that included air-source heat pumps (air heat energy) in the scope of renewable energy technologies, defining air heat energy as energy present in the ambient air. With the advancement of technology, a variety of devices utilizing air-source heat pump technology have emerged, such as air-source heat pump water heaters, air-source heat pump heating equipment, and air-source heat pump dryers. Air-source heat pumps typically utilize the reverse Carnot cycle principle, extracting low-temperature heat from the natural energy in the air while consuming a portion of high-grade energy (electricity, mechanical energy, or high-temperature energy) to compensate. The heat is then transferred from the low-temperature heat source to the high-temperature heat source. Through efficient system integration, the heat is converted into a high-temperature heat source, which can then be used to produce hot water or heat.

[0003] The air energy heat pump device of the existing technology cannot meet the demand for higher temperature, nor can it transfer and apply the heat source of the air energy heat pump device to improve the utilization rate of the air energy heat pump. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the technical problem solved by the present invention is to provide an air-to-energy heat pump steam unit to solve the problem that the existing air-to-energy heat pump cannot meet the specific requirements for higher temperatures, and to improve the heat conversion, collection and reuse of the air-to-energy heat pump.

[0005] In order to solve the above problems, the technical solution adopted by the present invention is:

[0006] An air-energy heat pump steam unit comprises an evaporator, a compressor, a plate exchanger, and a throttling device. The evaporator is connected to the compressor, the plate exchanger, and the throttling device in sequence through a pipeline. The plate exchanger for heat exchange is arranged in an insulated water tank. The insulated water tank is connected to a steam generator for vaporizing liquid. The steam generator comprises: a water inlet, a heating device, a steam outlet, and a steam generator tank body. The water inlet is arranged at the bottom of the steam generator tank body. The steam generator water inlet is connected to the insulated water tank through a high-temperature booster water pump. The outer wall of the steam generator tank body is provided with a heating device for heating the liquid. A steam outlet is provided on the top of the steam generator tank body. A safety valve and a temperature probe are respectively provided on both sides of the steam outlet. The steam generator tank body is also provided with a control system.

[0007] The beneficial effects of this solution are: by setting up a steam generator behind the insulated water tank, it meets the needs of higher temperature requirements, greatly facilitates the transfer and reuse of the heat source of the air-energy heat pump, increases the application scenarios of the air-energy heat pump, greatly improves the comprehensive utilization rate of the air-energy heat pump, and greatly improves the market benefits of the company's products.

[0008] Furthermore, the heating device is an electric heating tube, which is wound around the steam generator tank and consumes electricity to achieve a heating effect, thereby achieving clean use and increasing the contact area between the electric heating tube and the tank, thereby improving the efficiency of heat transfer.

[0009] Furthermore, the heating device is an electromagnetic coil, which is wound around the steam generating tank body. It can achieve a heating effect by inputting a small amount of electrical energy, with low resource consumption and clean use. At the same time, it increases the contact area between the electric heating tube and the tank body, thereby improving the efficiency of heat transfer.

[0010] Furthermore, by arranging a filter between the insulated water tank and the throttling device, the purity of the pipeline refrigerant is improved and the operating efficiency of the air energy heat pump is ensured.

[0011] Furthermore, by arranging a gas-liquid separator between the evaporator and the compressor, the refrigerant entering the compressor is dried and the compression efficiency of the compressor is improved.

[0012] Furthermore, an external fan with an air outlet facing outward is provided on the evaporator to accelerate the discharge of cold air and improve the evaporation efficiency of the evaporator.

[0013] Furthermore, by setting up a water level probe system, the amount of liquid inside the tank can be monitored in real time to prevent the liquid from being burned out, causing damage to the tank and forming a fire, thereby ensuring the safety of the steam generator and the steam generation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 Schematic diagram of the unit.

[0015] Figure 2 Schematic diagram of the steam generator.

[0016] Figure 3 Schematic diagram of the descaling mechanism. DETAILED DESCRIPTION

[0017] The following is further described in detail through specific implementation methods:

[0018] The figure marks in the drawings of the specification include: evaporator 1, external fan 11, gas-liquid separator 13, compressor 2, plate exchanger 8, insulated water tank 3, throttling device 4, steam generator 5, filter 6, high-pressure water supply booster pump 51, water supply network 7, water inlet 52, sewage outlet 53, electromagnetic coil 541, safety valve 55, steam outlet 56, temperature probe 57, steam generator tank 58, water level control seat 59, water level probe 591, electric heating tube 542, threaded groove 81, hollow floating ring 89, slider 83, spring 84, connecting rod 86, first scraper 87, second scraper 88, second pipeline 592.

[0019] Example 1 is basically as Figure 1 As shown:

[0020] The air energy heat pump steam unit includes: an evaporator 1, a compressor 2, a plate exchanger, and a throttling device 4. The evaporator 1 is connected to the compressor 2, the plate exchanger 8 and the throttling device 4 in sequence through a pipeline. A gas-liquid separator 13 is provided between the evaporator 1 and the compressor 2. An external fan 11 is provided outside the evaporator 1 to promote the exchange of cold air generated by the evaporator and external hot air. The plate exchanger 8 for heat exchange is arranged in an insulated water tank 3. A filter 6 is provided between the plate exchanger 8 and the throttling device 4. The throttling device 4 is connected to the evaporator 1 through a pipeline. The insulated water tank 3 is connected to the water inlet 52 of the steam generator 5 through a high-pressure water supply booster pump 51 using a water supply network 7.

[0021] like Figure 2 As shown, the steam generator 5 includes: a water inlet 52, a sewage outlet 53, a steam generator tank 58, an electromagnetic coil 541, a safety valve 55, a steam outlet 56, a temperature probe 57, a water level probe 591, and a water level control seat 59. The water inlet 52 is arranged at the center of the bottom of the steam generator tank 58, the electromagnetic coil 541 is wound around the outer wall of the lower end of the steam generator tank 58, a steam outlet 56 is arranged at the center of the top of the steam generator tank 58, a safety valve 55 is arranged on one side of the steam outlet 56, and a temperature probe 57 is arranged on the other side of the steam outlet 56. The water level control seat 59 is fixed on the outer wall of the steam generator tank 58, the water level control seat 59 is connected to the steam generator tank 58 through a pipe 592, the bottom of the water level control seat 59 is provided with a sewage outlet 53, the water level probe 591 is arranged in the cylinder of the water level control seat 59, and one end of the water level probe 591 is fixedly connected to the top of the water level control seat 59.

[0022] Specific implementation process:

[0023] Start the air energy heat pump steam unit, and the compressor 2 absorbs the low temperature and low pressure gaseous refrigerant from the evaporator 1 through the pipeline. Before reaching the compressor 2, the absorbed low temperature and low pressure gaseous refrigerant is separated by the gas-liquid separator 13 to separate the water in the gaseous refrigerant, and then the purer low temperature and low pressure gaseous refrigerant is sent to the compressor 2. By inputting electric energy to work on the compressor 2, the compressor 2 compresses the low temperature and low pressure gaseous refrigerant into high temperature and high pressure gaseous refrigerant. The high temperature and high pressure gaseous refrigerant passes through the plate exchanger 8 and the heat preservation water tank 3. The liquid (water) in the insulated water tank 3 exchanges heat, so that the temperature of the liquid (water) in the insulated water tank 3 rises to the required temperature. The high-pressure liquid refrigerant after condensation and heat release is filtered by the filter 6, and then throttled and reduced in pressure by the throttling device 4. The refrigerant returns to the evaporator 1 and is forced to circulate through the external fan 11. It absorbs the heat of the air and evaporates into a low-pressure gaseous refrigerant, which is then sucked into the compressor 2 to do work. This cycle is repeated to produce high-heat source air for heating the liquid (water) in the insulated water tank 3, and the liquid (water) in the insulated water tank 3 is heated to 80-95 degrees.

[0024] The liquid (water) heated to 80-95 degrees is stored in the insulated water tank 3, and the liquid (water) heated to 80-95 degrees in the insulated water tank 3 is transported to the steam generator 5 through the water supply network 7 using the high-temperature booster water pump 51. The control system energizes the electromagnetic coil 541 on the steam generator tank 58 to perform work, and heats the liquid again to vaporize it. During the heating process, the steam generator 5 tank and the temperature detection port 57 of the steam outlet 56 are both equipped with electronic temperature sensors, which transmit information to the control system according to the temperature. The control system controls the opening and closing of the safety valve 55 to ensure the safety of the steam generator 5. The high-temperature steam is discharged through the steam outlet 56 and connected to a usable place through a pipeline.

[0025] In this embodiment, there are two groups of air energy heat pumps to heat the insulated water tank 3. The two groups of air energy heat pumps are symmetrical with the insulated water tank 3. It is best to set two groups of steam generators 5 at the same time in the insulated water tank 3 to achieve the best steam production effect, greatly improving the working efficiency of the unit.

[0026] Example 2

[0027] Example 2 is a further optimization of Example 1. Figure 3 As shown: the steam generator 5 also includes a scale treatment device, which includes: a threaded groove 81, a hollow floating ring 89, a slider 83, a spring 84, a connecting rod 86, a first scraper 87, and a second scraper 88. The threaded groove 81 is set on the inner wall of the steam generator 5 tank. The hollow floating ring 89 is evenly provided with four openings, and a slider 83 is provided in the opening. The slider and the opening are sealed by a sealing ring. One end of the slider 83 is fixedly connected to the spring 84, and the other end of the spring 84 is fixedly connected to the inner wall of the hollow floating ring 89. The bottom of the slider 83 is fixedly connected to one end of the connecting rod 86, and the connecting rod 86 is provided with multiple second scrapers 88.

[0028] When the steam generator 5 is working, the hollow floating ring 89 floats on the liquid surface in the steam generator tank 58. As the external electromagnetic coil 541 continues to heat the liquid in the steam generator tank 58, the liquid heats the water in the hollow floating ring, and the water gradually boils, which increases the internal pressure of the hollow floating ring 89. The pressure squeezes the slider 83 outward, so that the slider 83 fits into the threaded groove 81. At the same time, the connecting rod 86 on the slider 83 is also closer to the wall of the steam generator tank 58. The scraper on the connecting rod 86 fits the inner wall of the tank. The water inside the steam generator 5 tank boils, and the ripples on the water surface caused by the boiling make the hollow floating ring 89 vibrate up and down repeatedly. The first scraper 87 of the slider 83 contacting the wall of the threaded groove 81 scrapes off the scale at the water level line, and the hollow floating ring 89 moves along the threaded groove. 81 rotates, and at the same time drives the second scraper 88 on the connecting rod 86 to remove the scale on the inner wall of the steam generator tank body 58. After the steam generator 5 stops heating, as the temperature of the liquid in the steam generator tank body 58 gradually decreases, the pressure inside the hollow floating ring 89 also gradually decreases, and the pressure of the air in the hollow floating ring 89 on the slider 83 also decreases. The stretched spring restoring force gradually becomes greater than the thrust of the air in the hollow floating ring 89 on the slider, causing the slider 83 to retract into the opening of the hollow floating ring 89; the scale on the inner wall of the steam generator tank body 58 is automatically removed, the contact area between the liquid in the tank and the wall of the steam generator tank body 58 is increased, the heating efficiency of the heating device is improved, and the service life of the steam generator tank body 58 is greatly improved, thereby reducing the production and operation costs of the enterprise.

[0029] The above is only an embodiment of the present invention, and the common knowledge such as the specific structure and characteristics of the scheme is not described in detail here. It should be pointed out that for those skilled in the art, without departing from the structure of the present invention, several variations and improvements can be made, which should also be regarded as the scope of protection of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. An air-energy heat pump steam unit comprising an evaporator, a compressor, a plate heat exchanger, and a throttling device, wherein the evaporator is sequentially connected to the compressor, the plate heat exchanger, and the throttling device via a pipeline, and characterized in that: A plate exchanger for heat exchange is disposed in an insulated water tank, which is connected to a steam generator for vaporizing liquid. The steam generator comprises a water inlet, a heating device, a steam outlet, and a steam generator tank. The water inlet is disposed at the bottom of the steam generator tank and is connected to the insulated water tank via a high-temperature booster water pump. A heating device for heating the interior of the steam generator tank is disposed on the outer wall of the steam generator tank. A steam outlet is disposed at the top of the steam generator tank. A safety valve and a temperature probe are provided on both sides of the steam outlet. The steam generator tank is also provided with a control system. The steam generator also includes a scale treatment device, which includes: a threaded groove, a hollow floating ring, a slider, a spring, a connecting rod, a first scraper, and a second scraper. The threaded groove is provided on the inner wall of the steam generator tank. The hollow floating ring is evenly provided with four openings. Sliders are provided in the openings. The sliders and the openings are sealed by sealing rings. One end of the slider is fixedly connected to the spring. The other end of the spring is fixedly connected to the inner wall of the hollow floating ring. The bottom of the slider is fixedly connected to one end of the connecting rod. The connecting rod is provided with multiple second scrapers. A filter is provided between the thermal insulation water tank and the throttling device; The control system includes a water level probe system capable of detecting the liquid inside the tank body. The water level probe system includes a water level control seat fixedly arranged on the outer wall of the steam generator tank body. A sewage outlet is provided at the bottom of the water level control seat, and a water level probe is provided inside the water level control seat.

2. The air energy heat pump steam unit according to claim 1, characterized in that: The heating device is an electric heating tube, which is wound around the outside of the steam generator tank.

3. The air energy heat pump steam unit according to claim 2, characterized in that: The heating device is an electromagnetic coil, which is wound on the outer wall of the steam generator tank.

4. The air energy heat pump steam unit according to claim 3, characterized in that: A gas-liquid separator is provided between the evaporator and the compressor.

5. The air energy heat pump steam unit according to claim 4, characterized in that: The outside of the evaporator is provided with an external fan which can promote the evaporator to generate cold air and exchange with external hot air.

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