CN213142529U

CN213142529U - High-frequency electromagnetic induction steam generation system and washing and drying machine comprising same

Info

Publication number: CN213142529U
Application number: CN202021368991.6U
Authority: CN
Inventors: 王伟华
Original assignee: Beijing Aoleishi Technological Co ltd
Current assignee: Beijing Aoleishi Technological Co ltd
Priority date: 2020-07-14
Filing date: 2020-07-14
Publication date: 2021-05-07
Anticipated expiration: 2030-07-14

Abstract

The utility model discloses a high frequency electromagnetic induction steam generation system and contain its laundry dryer, high frequency electromagnetic induction steam generation system includes the storage water tank, stores up the steam chest, preheats compensation heating member and steam heating member, and at least one preheats compensation heating member and steam heating member series connection intercommunication, it is located steam heating member front end to preheat the compensation heating member, the storage water tank communicates with the entry of preheating the compensation heating member, steam heating member's export and steam chest intercommunication. The utility model discloses a multistage compensation's high frequency electromagnetic eddy current induction heating mode reduces the pipe diameter effectively, and then improves rate of heating effectively, reduces heat time, makes the intensification rapider, produces gas in succession, and equipment safe and reliable, and the accuse temperature is nimble, and degree of automation is high, small in size, simple structure.

Description

High-frequency electromagnetic induction steam generation system and washing and drying machine comprising same

Technical Field

The utility model relates to a laundry and clothes drying equipment field especially relates to a high frequency electromagnetic induction steam generation system and contain its laundry and clothes dryer.

Background

The electromagnetic heating technology is a device which converts electric energy into heat energy by utilizing the principle of electromagnetic induction. The electromagnetic controller rectifies the alternating current of 110V-220V and 50/60Hz into direct current, then converts the direct current into high-frequency high-voltage electricity with the frequency of 20-40KHz, the high-frequency current flows through the coil to generate an alternating magnetic field changing at high speed, and when magnetic lines of force in the magnetic field pass through the magnetic conductive metal material, countless small eddy currents are generated in the metal body, so that the metal material can automatically and rapidly heat objects in the cylinder.

High and medium frequency induction heating is one of the fastest methods for directly heating metal materials, which can be achieved and mastered by human beings at present, and the method can achieve real electric isolation. Generally, people heat objects, namely, combustion of energy sources such as coal, oil, gas and the like is utilized to generate heat; secondly, electric energy is converted into heat by electric appliances such as an electric furnace and the like. The heat can be transferred to the object to be heated only by means of heat transfer (heat conduction, heat convection, heat radiation), and the object can be heated. Due to these heating methods, the object to be heated is warmed by absorbing external heat. Therefore, they are both indirect heating methods. As we know, the natural heat transfer rule is that heat can only be transferred from a high-temperature region to a low-temperature region, from a high-temperature body to a low-temperature body, and from the high-temperature part to the low-temperature part naturally. Therefore, it can be heated effectively only when the external heat quantity, temperature is significantly more than, higher than the heated object. This requires a lot of energy to create a high temperature zone with much more heat and much higher temperature than the object to be heated. Such as a furnace, oven, etc. Thus, only a small part of the heat can be transferred to the heated body, resulting in great energy waste. Moreover, the heating time is long, and a large amount of harmful substances and gases are generated in the burning and heating processes. They can cause both corrosive damage to the heated body and pollution to the atmosphere. Even if an electric heating method such as an electric furnace is used, although there is no pollution, there are still disadvantages such as low efficiency, high cost, and slow heating speed.

Medium-frequency and high-frequency induction heating is to convert power frequency (50Hz) AC into AC with frequency generally 1KHZ to hundreds KHZ, even higher. The electromagnetic induction principle is utilized, and the magnetic field with the same frequency is converted by an inductance coil and acts on a metal object in the magnetic field. By using the eddy current effect, induced rotating currents (i.e., eddy currents) are generated in the metal object in proportion to the magnetic field strength. The rotating current converts it into heat energy by means of electrical resistance in the metal object. Meanwhile, the magnetic hysteresis effect, the skin effect, the edge effect and the like can also generate certain heat, and the magnetic hysteresis effect, the skin effect, the edge effect and the like can jointly cause the temperature of the metal object to be rapidly increased, thereby realizing the purpose of rapid heating. The skin effect of the high-frequency current can make the eddy current in the metal object concentrate on the surface layer of the metal to circulate along with the increase of the frequency. Therefore, the control of the heating depth of the metal object can be realized by controlling the frequency of the working current. The quality of the processing technology can be improved, and the energy can be fully utilized.

In the manufacturing process, the charging barrel is wrapped with a heat insulation material with a certain thickness, so that the heat loss is greatly reduced, and the energy-saving rate of the energy-saving test can reach 40-75%. The electromagnetic heating ring does not generate heat, so the electromagnetic heating ring has the advantages of long service life, high heating rate, no need of maintenance and the like, the maintenance time is shortened, and the cost is reduced. The heat conversion efficiency of the high-efficiency energy-saving mode is more than 96 percent. The high-frequency electromagnetic eddy current heating technology has the advantages that 1, because the heating coil in the electromagnetic heating electricity-saving device does not generate heat and is made of insulating materials and high-temperature cables, the problem that the service life of the resistance wire of the original electric heating coil is shortened due to oxidation in a high-temperature state is solved, the high-frequency electromagnetic eddy current heating technology has the advantages of long service life, high heating rate, no need of maintenance and the like, the maintenance time is shortened, and the cost is reduced; 2, the method can achieve true electrical isolation. 3. The operation is reliable, namely a multi-closed-loop intelligent control system and a perfect protection system ensure the long-term safe and reliable operation of the equipment; 4. the working environment is improved, the heat dissipation of the heating part is less, the surface can be touched by hands, and the environmental condition of the production field is improved; 5. the power-saving effect is good, the heat efficiency is high, and the preheating time is shortened by 1/3, so that a large amount of electric energy is saved, and the power-saving effect is very obvious.

The existing high-frequency electromagnetic induction heater cannot be directly applied to a washing and drying machine due to the large pipe diameter, and the heating gas production speed is affected if the pipe diameter is simply reduced, so how to create a new high-frequency electromagnetic induction steam generation system belongs to one of the current important research and development subjects.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a high frequency electromagnetism steam generation system makes its mode through multistage series heating, when effectively reducing the pipe diameter, can improve rate of heating again, reduces the heat time, produces gas fast to overcome current high frequency electromagnetism induction heater's not enough.

For solving the technical problem, the utility model provides a high frequency electromagnetic induction steam generation system, include storage water tank, steam storage box, preheat compensation heating member and steam heating member and be the electromagnetic induction heating member, at least one preheats compensation heating member and steam heating member and establishes ties the intercommunication, preheat the compensation heating member and be located steam heating member front end, the storage water tank communicates with the entry of preheating the compensation heating member, steam heating member's export and steam storage box intercommunication.

As an improvement of the utility model, the electromagnetic induction heating body is a structure that an insulating and heat-insulating layer is coated outside a ferromagnetic stainless steel pipe and an electromagnetic coil is wound outside the insulating and heat-insulating layer.

Furthermore, a pressure pump is arranged between the water storage tank and the preheating compensation heating body, an electromagnetic valve is arranged at an inlet of the pressure pump, and the electromagnetic valve and the pressure pump are jointly controlled to be opened or closed.

Further, the preheating compensation heating body and the steam heating body are vertically arranged in the direction that the inlet is arranged at the lower part and the outlet is arranged at the upper part.

Further, the position of the steam storage box is higher than the outlet height of the steam heating body.

Furthermore, a preheating temperature sensor is arranged on the preheating compensation heating body, a steam temperature sensor is arranged on the steam heating body, a first water level sensor is arranged on the steam heating body, and a second water level sensor is arranged on the water storage tank.

Furthermore, the preheating compensation heating body and the steam heating body are both provided with water drain valves.

Furthermore, the inlets of the preheating compensation heating body and the steam heating body are respectively provided with a check valve.

Further, a pressure sensor and a pressure switch are arranged on the steam storage box.

Furthermore, the utility model also provides a washing and drying machine makes it implant high frequency electromagnetic induction steam generation system as the steam heat source, has the characteristics of heating efficiency height, intensification are fast, water and electricity separation to make the complete machine safer, energy-conserving, convenient, service environment is more friendly, degree of automation is high, thereby overcomes the not enough in the aspect of the required steam heat source of current washing and drying machine.

In order to solve the technical problem, the utility model provides a washing and drying machine contains foretell high frequency electromagnetic induction steam generation system, high frequency electromagnetic induction steam generation system do washing and drying machine provides the heat source.

After adopting such design, the utility model discloses following advantage has at least:

1. the preheating compensation heating body and the steam heating body are connected in series, the multi-stage heating mode can effectively reduce the pipe diameter of the steam heating body, the structure is more compact, and the steam heating body is more beneficial to being implanted into a washing and drying machine for use;

2. the preheating compensation heating body preheats cold water and then injects the cold water into the steam heating body to generate gas, when a user uses steam, preheated hot water enters the steam generator, so that the gas generation speed can be faster and more continuous, and when the user does not use steam, the preheating compensation heating body operates at low power to preserve heat, so that the energy can be effectively saved;

3. the electromagnetic induction heating mode is more energy-saving, and the heated object is not electrically connected with the heating equipment, so that the equipment is safer and more reliable;

4. the electromagnetic induction heating mode can change power output by changing the electromagnetic oscillation frequency, realize the purpose of flexible temperature control, and has high automation degree, small volume and simple structure;

5. the gas storage tank is positioned at the high level of the steam heating body, once water in the gas storage tank can naturally flow back into the steam heating body, the gas storage tank is ensured not to accumulate water, the waste heat of the backflow hot water can be effectively utilized, and the heat efficiency is increased;

6. an electromagnetic valve is arranged on the water inlet side of the pressure pump and is controlled in a linkage mode, and when the pressure pump does not work, the electromagnetic valve is closed to prevent water from being injected by mistake;

7. the water level sensor is arranged on the steam heating body, so that the heating body is prevented from being dried and the water level in the steam heating body is limited, water is not contained in the gas storage tank, the temperature rise and steam production speed is increased, and the heating time is shortened;

8. the water drain valves are arranged at the bottoms of the preheating compensation heating body and the steam heating body, and the water can enter a corresponding automatic sewage draining mode through the use times, the environment temperature condition and the current use condition, so that the water draining is simple and convenient.

9. The washing and drying machine implanted with the high-frequency electromagnetic induction steam generation system can realize water and electricity isolation, the heating mode is safer, and the equipment is more reliable in use.

Drawings

The foregoing is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clear, the present invention will be further described in detail with reference to the accompanying drawings and the detailed description.

Fig. 1 is a schematic diagram of the high-frequency electromagnetic steam generating system of the present invention.

Fig. 2 is an electrical control schematic diagram of the high-frequency electromagnetic steam generation system of the present invention.

Description of reference numerals: 1-a water storage tank; 2-preheating a compensation heating body; 3-steam heating body; 4-a steam storage tank; 5-a pressure pump; 6-electromagnetic valve; 7-a check valve; 8-a water drain valve; 9-preheating temperature sensor; 10-a steam temperature sensor; 11-a first water level sensor; 12-a second water level sensor; 13 a pressure switch; 14-a pressure sensor; 15-ferromagnetic stainless steel tubing; 16-insulating and heat-insulating layer; 17-electromagnetic coil.

Detailed Description

Please refer to fig. 1, the utility model provides a high frequency electromagnetic induction steam generation system, include storage water tank 1, steam storage tank 4, preheat compensation heating member 2 and steam heating member 3, storage water tank 1 communicates to the entry of preheating compensation heating member 2 through the pipeline, and at least one preheats compensation heating member 2 and establishes ties the intercommunication with steam heating member 3, preheats compensation heating member 2 and is located the front end of steam heating member 3, the export of steam heating member 3 communicates to steam storage tank 4. The preheating compensation heating body 2 and the steam heating body 3 are vertically arranged, an inlet is arranged below, an outlet is arranged above, the position of the steam storage box 4 is arranged above the outlet of the steam heating body 3, so that water in the steam storage box 4 can naturally flow back to the steam heating body 3 by utilizing gravity, and water is not accumulated in the steam storage box 4.

The preheating compensation heating body 2 and the steam heating body 3 are both high-frequency electromagnetic induction heaters and comprise ferromagnetic stainless steel pipes 15, insulating and heat-insulating layers 16 and electromagnetic coils 17, wherein the ferromagnetic stainless steel pipes 15 are coated with the insulating and heat-insulating layers 16, and the electromagnetic coils 17 are wound outside the insulating and heat-insulating layers 16.

Preferably, a pressure pump 5 is arranged between the water storage tank 1 and the preheating compensation heating body 2, an electromagnetic valve 6 is arranged at an inlet of the pressure pump 5, and the electromagnetic valve 6 and the pressure pump 5 are controlled to be opened or closed simultaneously in a linkage manner so as to prevent water from being supplied by mistake. Meanwhile, a first water level sensor 11 is arranged on the steam heating body 3, a second water level sensor 12 is arranged on the water storage tank 1, and the booster pump 5 carries out on-off control or water shortage prompt according to water level signals of the first water level sensor 11 and the second water level sensor 12.

Preferably, the inlets of the preheating compensation heating body 2 and the steam heating body 3 are both provided with check valves 7 to prevent water or steam from flowing back.

Preferably, the preheating compensation heating body 2 and the steam heating body 3 are both provided with drain valves 8 for automatic sewage discharge.

Preferably, the preheating compensation heating body 2 is provided with a preheating temperature sensor 9, the steam heating body 3 is provided with a steam temperature sensor 10, and the controller controls the power of the electromagnetic coil 17 according to temperature signals of the preheating temperature sensor 9 and the steam temperature sensor 10, so that the temperature control purpose is achieved.

Preferably, a pressure sensor 14 and a pressure switch 13 are arranged on the steam storage tank 4, the pressure sensor 14 monitors the steam pressure in the steam storage tank 4, the pressure switch 13 is used as a safety valve, and when the steam pressure in the steam storage tank 4 exceeds a preset value, the pressure switch 13 is automatically opened to release the pressure.

Referring to fig. 1 and 2, when the present invention is in use, water is supplied from the water storage tank 1 to the two heating members through the pressure pump 5, and the two heating members work simultaneously in the initial stage. When the system enters a constant pressure stage, the preheating compensation heating body 2 and the steam heating body 3 are respectively controlled. The cold water is heated in the preheating compensation heating body 2 into hot water with the boiling point close to that of the cold water, and the hot water enters the steam heating body 3 to generate steam and is stored in the steam storage tank 3. The water injection height is based on the first water level sensor on the steam generator to ensure that no dry burning occurs. The high-frequency electromagnetic induction steam generation system is internally provided with a controller, the controller jointly controls the electromagnetic valve 6 and the pressure pump 5 according to water level signals of the first water level sensor 11 and the second water level sensor 13, and when the water level of the water storage tank 1 is too low, the controller prompts water adding warning. When the water level in the steam heating body 3 reaches, the water supply is automatically stopped. The controller also controls the power of the solenoid coil 17 in dependence on the temperature signals of the preheat temperature sensor 9 and the steam temperature sensor 10, while also monitoring the steam pressure in the steam storage tank 4 via the pressure sensor 14. The controller is also used for controlling the opening and closing of the water drain valve 8 to automatically discharge sewage.

In addition, the utility model also provides a washing and drying machine, contains foretell high frequency electromagnetic induction steam generation's heat source supply system.

The above description is only for the preferred embodiment of the present invention, and not intended to limit the present invention in any way, and those skilled in the art can make various modifications, equivalent changes and modifications using the above-described technical content, all of which fall within the scope of the present invention.

Claims

1. The high-frequency electromagnetic induction steam generation system is characterized by comprising a water storage tank, a steam storage tank, a preheating compensation heating body and a steam heating body, wherein the preheating compensation heating body and the steam heating body are electromagnetic induction heating bodies, at least one preheating compensation heating body is communicated with the steam heating body in series, the preheating compensation heating body is positioned at the front end of the steam heating body, the water storage tank is communicated with an inlet of the preheating compensation heating body, and an outlet of the steam heating body is communicated with the steam storage tank.

2. The high-frequency electromagnetic induction steam generating system according to claim 1, wherein the electromagnetic induction heating body is a structure in which a ferromagnetic stainless steel pipe is covered with an insulating layer, and an electromagnetic coil is wound outside the insulating layer.

3. The high-frequency electromagnetic induction steam generating system as claimed in claim 1, wherein said preheating compensation heating body and said steam heating body are vertically arranged with the inlet at the lower outlet at the upper direction.

4. The high-frequency electromagnetic induction steam generating system as claimed in claim 1, wherein said steam storage tank is located higher than an outlet height of the steam heating body.

5. The high-frequency electromagnetic induction steam generating system according to claim 1, wherein a pressure pump is arranged between the water storage tank and the preheating compensation heating body, an electromagnetic valve is arranged at an inlet of the pressure pump, and the electromagnetic valve and the pressure pump are jointly controlled to be opened or closed.

6. The high-frequency electromagnetic induction steam generating system as claimed in claim 1, wherein the preheating compensation heating body is provided with a preheating temperature sensor, the steam heating body is provided with a steam temperature sensor, the steam heating body is provided with a first water level sensor, and the water storage tank is provided with a second water level sensor.

7. The high-frequency electromagnetic induction steam generating system as claimed in claim 1, wherein the preheating compensation heating body and the steam heating body are both provided with water drain valves.

8. The high-frequency electromagnetic induction steam generating system as claimed in claim 1, wherein the inlets of the preheating compensation heating body and the steam heating body are provided with check valves.

9. The high frequency electromagnetic induction steam generation system of claim 1, wherein the steam storage tank is provided with a pressure sensor and a pressure switch.

10. A washer-dryer comprising the high frequency electromagnetic induction steam generation system of any one of claims 1 to 9, said high frequency electromagnetic induction steam generation system providing a heat source for said washer-dryer.