Microwave heating hot water unit device

Abstract

A microwave heating box is arranged on one side in a machine box, a water mixing tank is arranged on the other side in the machine box, a plurality of sets of heating spiral pipes are arranged in the microwave heating box, a plurality of sets of microwave magnetrons are arranged on the top or the side face of the microwave heating box, and a microwave power source supplies power to the microwave magnetrons. An equipment control box is arranged at the upper part of the case, a PLC (Programmable Logic Controller) is arranged in the equipment control box, a display screen, a microwave magnetron and a microwave power supply are arranged on the equipment control box, and a device circulating water pump is electrically connected with the PLC; according to the device, a circulating water pump conveys one part of circulating water in a water mixing tank into a microwave heating box to be heated, one part of the circulating water is conveyed to a microwave magnetron to cool the microwave magnetron and heat the water at the same time, and the other part of the circulating water is conveyed to a microwave power supply to cool the microwave power supply and heat the water at the same time; meanwhile, heat of all the heating elements is fully recycled, the heat utilization rate is increased, the heat efficiency of the device is improved, and in addition, the water mixing tank is used for solving the water quantity matching problem of the device and a user system.

Description

Technical Field

[0001] The utility model belongs to the technical field of heating equipment, and in particular relates to a microwave heating hot water unit device. Background Art

[0002] Heating is an indispensable part of livelihood projects, especially in northern my country, where winters are cold and long, and indoor heating is essential. There are many conventional forms of heating, including electric boilers, air source heat pumps, water source heat pumps, gas boilers, graphene heating, etc. Microwave heating is a new type of heating method that has emerged in the past two years. Through long-term practical applications, it has been found that there are many problems with the device, which has brought many changes to the development of this technology, which can be summarized as follows: First, microwave heating has high efficiency, fast speed, and high heating temperature. There are problems with matching the flow of the medium to be heated with the required flow of the heating system. Most of the existing microwave heating devices use the heating system circulating water directly into the microwave heating device, and then enter the heating system for circulation heating after heating. Microwave heating devices are suitable for small flow and large temperature difference circulating media, while the circulating medium of the heating system is mainly large flow and small temperature difference circulation, so there are problems with all matching. There are problems with the system layout of the microwave heating device in the second market. The circulating water pump in the microwave heating device is located under the microwave heating box, which brings many inconveniences to maintenance. It also increases the resistance of the pipeline system and the power consumption of the equipment. The microwave heat exchange efficiency in the microwave heating box in the third market needs to be improved. Summary of the invention

[0003] The technical problem to be solved by the utility model is to overcome the deficiencies of the above-mentioned prior art and provide a microwave heating and hot water unit device.

[0004] The technical solution adopted to solve the above technical problems is: a microwave heating hot water unit device, a microwave heating box is arranged on one side of the inside of the box, and a mixing tank is arranged on the other side, a plurality of groups of heating spiral tubes are arranged in the microwave heating box, a plurality of groups of microwave magnetrons are arranged on the top or side of the microwave heating box, and the microwave magnetrons are powered by a microwave power supply, a circulating water pump is arranged on the left water outlet pipe of the mixing water tank, and the outlet of the circulating water pump is divided into three paths, the first path is connected to the inlet of the heating spiral tube, the second path is connected to the cooling water inlet of the microwave magnetron, and the third path is connected to the cooling water inlet of the microwave magnetron. The cooling water outlet of the adjacent microwave magnetrons is connected in series with the cooling water inlet, the cooling water outlet of the adjacent microwave power supplies is connected in series with the cooling water inlet, the water outlet of the heating spiral tube, the cooling water outlet of the last group of microwave magnetrons, and the cooling water outlet of the last group of microwave power supplies are connected to the right water inlet pipeline of the mixing water tank, an equipment control box is arranged on the upper part of the chassis, a PLC controller is arranged in the equipment control box, a display screen is arranged on the equipment control box, and the microwave magnetron, microwave power supply, and a circulating water pump of the device are electrically connected to the PLC controller.

[0005] The right water inlet pipeline of the water mixing tank of the utility model is provided with a pressure sensor and a first temperature sensor, and the pressure sensor and the first temperature sensor are electrically connected to the PLC controller.

[0006] The utility model discloses a water mixing tank with a safety pressure relief valve on the upper part and a water drainage valve on the lower pipeline.

[0007] The utility model provides a second temperature sensor on the water inlet end of a circulating water pump installed on the right water outlet pipeline of the water mixing tank, and the second temperature sensor is electrically connected to the PLC controller.

[0008] The water mixing tank of the utility model is connected with the heating users through a system circulating water pump installed on the pipeline.

[0009] A plurality of groups of heating spiral tubes arranged inside the microwave heating box of the utility model are located on the same horizontal plane.

[0010] The plurality of groups of heating spiral tubes arranged inside the microwave heating box of the utility model are arranged in a plurality of rows and columns, each row is located on the same horizontal plane and each column is located on the same vertical plane.

[0011] The heating spiral tube of the utility model is sleeved on the enhanced heat exchange sleeve, and both ends of the heat exchange sleeve are arranged on the inner side wall of the microwave heating box.

[0012] The number of microwave magnetrons of the utility model corresponds to the number of microwave power supplies, and the microwave magnetrons are arranged in a plurality of rows, and the number of microwave magnetrons in each row is ≤5.

[0013] The ratio of the number of microwave magnetrons to the number of heating spiral tubes in the utility model is 2:1.

[0014] Since the utility model integrates a water mixing tank and a microwave heating box in a chassis, the entire device is controlled by a PLC controller, the microwave magnetron releases energy to heat the heating spiral tube in the microwave heating box, and the device's circulating water pump transports part of the circulating water in the water mixing tank to the microwave heating box for heating, transports part to the microwave magnetron to cool the microwave magnetron while the water is heated, and transports another part to the microwave power supply to cool the microwave power supply while the water is heated. The circulating medium not only absorbs the heat of the microwave, but also fully recovers the heat of each heating element, thereby improving the utilization rate of the heat and the thermal efficiency of the device. In addition, the use of the water mixing tank solves the problem of water volume matching between the device and the user system. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of an embodiment of the utility model.

[0016] Figure 2 yes Figure 1 Schematic diagram of connection with heating user 14.

[0017] Figure 3 It is a stereogram of the utility model.

[0018] In the figure: 1. Chassis; 2. Microwave heating box; 3. Spiral heating tube; 4. Enhanced heat exchange sleeve; 5. Microwave magnetron; 6. Microwave power supply; 7. Pressure sensor; 8. First temperature sensor; 9. Pressure relief valve; 10. Mixing tank; 11. Drain valve; 12. Second temperature sensor; 13. Device circulating water pump; 14. Heating user; 15. System circulating water pump; 16. Display screen; 17. Equipment control box. DETAILED DESCRIPTION

[0019] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments, but the present invention is not limited to these embodiments.

[0020] Example 1

[0021] exist Figure 1 , 2, 3, the utility model relates to a microwave heating hot water unit device, a microwave heating box 2 is arranged on one side of the cabinet 1, and a mixing tank 10 is arranged on the other side. The microwave heating box 2 is made of stainless steel with a thickness of not less than 1.5 mm, and the width and height are integer multiples of the microwave wavelength, which is conducive to the absorption and superposition of wavelengths during microwave generation, and is conducive to the full absorption of microwave energy, thereby improving the efficiency of the microwave heating device. Several groups of microwave magnetrons 5 are arranged on the top or side of the microwave heating box 2, and the microwave magnetrons 5 are powered by a microwave power supply 6. Several groups of heating spiral tubes 3 are arranged in the microwave heating box 2. In this embodiment, several groups of heating spiral tubes 3 are located on the same horizontal plane, or several groups of heating spiral tubes 3 are arranged in several rows and columns, each row is located on the same horizontal plane and each column is located on the same vertical plane. The above arrangement method is used to increase the number of times the medium in the heating spiral tube 3 is heated by microwaves, so that the heating path is longer and more microwave energy can be absorbed. In order to ensure the heating efficiency, the ratio of the number of microwave magnetrons 5 to the number of heating spiral tubes 3 is 2:1. The number of microwave magnetrons 5 corresponds to the number of microwave power supplies 6 , and one microwave magnetron 5 is independently controlled by one microwave power supply 6 .

[0022] In order to prevent the heating spiral tube 3 from deforming, the heating spiral tube 3 is sleeved on the enhanced heat exchange sleeve 4, and both ends of the heat exchange sleeve 4 are arranged on the inner wall of the microwave heating box 2. The heating spiral tube 3 is made of high temperature resistant FEP fluorinated ethylene propylene copolymer material, with an outer diameter of 14mm and an inner diameter of 10mm, and the outer diameter of the coil is 80-95mm and the inner diameter is 50-65mm. The enhanced heat exchange sleeve 4 is made of polytetrafluoroethylene, and the diameter of the tube matches the heating spiral tube 3.

[0023] A circulating water pump 13 is arranged on the left water outlet pipeline of the mixing water tank 10. The outlet of the circulating water pump 13 is divided into three paths. The first path is connected to the inlet of the heating spiral tube 3, and the medium in the mixing water tank 10 is sent to the heating spiral tube 3 for heating and temperature rise. The second path is connected to the cooling water inlet of the microwave magnetron 5, and the third path is connected to the cooling water inlet of the microwave power supply 6. The cooling water outlets of adjacent microwave magnetrons 5 are connected in series with the cooling water inlet, and the cooling water outlets of adjacent microwave power supplies 6 are connected in series with the cooling water inlet. The medium in the mixing water tank 10 is heated while cooling the microwave magnetron 5 and the microwave power supply 6. Furthermore, the microwave magnetrons 5 are arranged in several rows, and the number of microwave magnetrons 5 in each row is ≤5, so as to ensure the cooling effect.

[0024] The water outlet of the heating spiral tube 3, the cooling water outlet of the last group of microwave magnetrons 5, and the cooling water outlet of the last group of microwave power supply 6 are connected to the right water inlet pipeline of the mixing tank 10. The medium after three-way heating re-enters the mixing tank 10 to mix with the medium in the mixing tank 10. The mixing tank 10 is connected to the heating user 14 through the system circulation water pump 15 installed on the pipeline.

[0025] Further, the right water inlet pipe of the mixing tank 10 of this embodiment is provided with a pressure sensor 7 and a first temperature sensor 8, the water inlet end of the circulating water pump 13 of the right water outlet pipe of the mixing tank 10 is provided with a second temperature sensor 12, the upper part of the mixing tank 10 is provided with a safety pressure relief valve 9, and the lower pipe is provided with a drain valve 11. The pressure sensor 7, the first temperature sensor 8, and the second temperature sensor 12 are electrically connected to the PLC controller. The upper part of the chassis 1 is provided with a device control box 17, the PLC controller is arranged in the device control box 17, the device control box 17 is provided with a display screen 16, and the microwave magnetron 5, the microwave power supply 6, and the circulating water pump 13 are electrically connected to the PLC controller. The PLC controller starts and stops the microwave magnetron 5 according to the signals transmitted by the first temperature sensor 8 and the second temperature sensor 12.

[0026] The working principle of the utility model is as follows:

[0027] The microwave power supply 6 supplies power to the microwave magnetron 5, and the microwave magnetron 5 works, and the circulating medium in the heating spiral tube 3 in the microwave heating box 2 is heated. The circulating water pump 13 of the device delivers part of the circulating water in the mixing tank 10 to the heating spiral tube 3 in the microwave heating box 2 for heating, delivers part to the microwave magnetron 5 for cooling, and takes away the heat generated by the microwave magnetron 5 when working, and delivers part to the microwave power supply 6 for cooling, and takes away the heat generated by the microwave power supply 6 when working. Finally, these three parts of the heated medium are collected in the mixing tank 10 to provide hot water for the heating user 14. The circulating water returned from the heating user 14 is circulated and heated again.

Claims

1. A microwave heating hot water unit, characterized in that: A microwave heating box (2) is arranged on one side of the cabinet (1), and a water mixing tank (10) is arranged on the other side. A plurality of groups of heating spiral tubes (3) are arranged in the microwave heating box (2). A plurality of groups of microwave magnetrons (5) are arranged on the top or side of the microwave heating box (2). The microwave magnetrons (5) are powered by a microwave power supply (6). A circulating water pump (13) is arranged on the left water outlet pipeline of the water mixing tank (10). The outlet of the circulating water pump (13) is divided into three paths. The first path is connected to the inlet of the heating spiral tube (3), the second path is connected to the cooling water inlet of the microwave magnetron (5), and the third path is connected to the cooling water inlet of the microwave power supply (6). The cooling water outlets of adjacent microwave magnetrons (5) are connected in series with the cooling water inlets, the cooling water outlets of adjacent microwave power supplies (6) are connected in series with the cooling water inlets, the water outlet of the heating spiral tube (3), the cooling water outlet of the last group of microwave magnetrons (5), and the cooling water outlet of the last group of microwave power supplies (6) are connected to the right water inlet pipeline of the mixing tank (10), an equipment control box (17) is arranged on the upper part of the chassis (1), a PLC controller is arranged in the equipment control box (17), a display screen (16) is arranged on the equipment control box (17), and the microwave magnetrons (5), the microwave power supplies (6), and the device circulating water pump (13) are electrically connected to the PLC controller.

2. The microwave heating water heating unit device according to claim 1 is characterized in that: A pressure sensor (7) and a first temperature sensor (8) are arranged on the right water inlet pipeline of the mixing tank (10), and the pressure sensor (7) and the first temperature sensor (8) are electrically connected to the PLC controller.

3. The microwave heating water heating unit device according to claim 1 is characterized in that: The water mixing tank (10) is provided with a safety pressure relief valve (9) on the upper part and a drainage valve (11) on the lower pipeline.

4. The microwave heating water heating unit device according to claim 1 is characterized in that: A second temperature sensor (12) is provided at the water inlet end of a circulating water pump (13) installed on the right water outlet pipe of the mixing water tank (10), and the second temperature sensor (12) is electrically connected to the PLC controller.

5. The microwave heating water heating unit device according to claim 1 is characterized in that: The water mixing tank (10) is connected to the heating user (14) via a system circulating water pump (15) installed on a pipeline.

6. The microwave heating water heating unit device according to claim 1 is characterized in that: The plurality of groups of heating spiral tubes (3) arranged inside the microwave heating box (2) are located on the same horizontal plane.

7. The microwave heating water heating unit device according to claim 1 is characterized in that: The plurality of groups of heating spiral tubes (3) disposed inside the microwave heating box (2) are arranged in a plurality of rows and columns, each row being located on the same horizontal plane and each column being located on the same vertical plane.

8. The microwave heating water heating unit device according to any one of claims 6 or 7, characterized in that: The heating spiral tube (3) is sleeved on the enhanced heat exchange sleeve (4), and both ends of the heat exchange sleeve (4) are arranged on the inner wall of the microwave heating box (2).

9. The microwave heating water heating unit device according to claim 1, characterized in that: The number of the microwave magnetrons (5) corresponds to the number of microwave power supplies (6), and the microwave magnetrons (5) are arranged in a plurality of rows, with the number of microwave magnetrons (5) in each row being ≤5.

10. The microwave heating water heating unit device according to claim 1, characterized in that: The ratio of the number of the microwave magnetrons (5) to the number of the heating spiral tubes (3) is 2:1.

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