Explosion-proof electric heater with scale inhibition structure

Abstract

The utility model discloses an explosion-proof electric heater with a scale inhibition structure, which relates to the field of explosion-proof electric heater devices, and comprises a tank body, a water inlet is arranged on the upper surface of the tank body, an outer filter shell is arranged in the water inlet, the outer filter shell is of a multi-section hollow design, an HEPA filter screen is arranged on the outer surface of the outer filter shell, and a scale inhibition structure is arranged on the outer surface of the HEPA filter screen. A butt joint ring is installed at the upper end of the outer filter shell, a circular ring clamping plate is installed at the upper end of the butt joint ring and located on the upper surface of the water outlet, a sealing plate is spirally installed at the lower end of the outer filter shell, a spring is installed on the sealing plate, the height of the spring is flush with that of the butt joint ring, and a movable block is installed at the upper end of the spring. A first sealing piece is installed in the butt joint ring. The movable block, the inner filter shell and the outer filter shell are arranged, the filter assembly can be self-cleaned through water pressure, meanwhile, water is purified from the source, the scale inhibiting effect of the device is improved, and the service life of the device is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of explosion-proof electric heater devices, and in particular to an explosion-proof electric heater with a scale-inhibiting structure. Background Technology

[0002] Explosion-proof electric heaters are currently the most popular heating equipment worldwide, known for their high quality and long lifespan. They are electric heating elements that use electricity as a new energy source. Explosion-proof electric heaters specifically convert electrical energy into heat energy to heat the objects inside the heater. Generally, explosion-proof electric heaters use heat transfer oil as the heat carrier. The internal high-temperature voltage system, through a circulating pump of the heat transfer oil and forced processing by electricity, transfers the heat from the internal high-temperature voltage system to one or more electric heating devices. After passing through the transition function of the high-temperature voltage system of the electric heating device, the heat transfer oil begins a new heating process, returning to the electric heater through the circulating pump to absorb heat a second time and transfer it to the internal high-temperature voltage system of the electric heater. Through this cyclical operation, the electric heater continuously transfers heat, enabling the internal high-temperature voltage system of the electric heater to obtain sustained high-temperature energy, thereby meeting the heating requirements of the heating medium during high-temperature processes.

[0003] Scale will appear in explosion-proof electric heaters after a period of use. Scale will produce a certain odor after being heated at high temperatures. Scale in explosion-proof electric heaters will not only reduce the heating performance of the heater, but long-term use will also cause unnecessary harm to the human body.

[0004] Currently, when cleaning scale, the explosion-proof electric heater needs to be disassembled and the heating element descaled. The more frequently it is used, the more cleaning is required. The process is cumbersome and frequent disassembly and assembly can lead to poor sealing.

[0005] Therefore, it is necessary to propose an explosion-proof electric heater with a scale-inhibiting structure to solve the above problems. Utility Model Content

[0006] The purpose of this utility model is to provide an explosion-proof electric heater with a scale-inhibiting structure to solve the problems mentioned in the background art, which require disassembling the explosion-proof electric heater and then descaling the heating element when cleaning scale. The more frequent the use, the more cleaning is required, which is cumbersome and frequent disassembly and assembly will lead to poor sealing.

[0007] To achieve the above objectives, the present invention provides the following technical solution: an explosion-proof electric heater with a scale-inhibiting structure, comprising a tank, wherein a water inlet is installed on the upper surface of the tank, and an outer filter shell is installed inside the water inlet;

[0008] The outer filter housing has a multi-segment hollow design. A HEPA filter screen is installed on the outer surface of the outer filter housing. A docking ring is installed at the upper end of the outer filter housing. A circular retaining plate is installed at the upper end of the docking ring. The circular retaining plate is located on the upper surface of the water outlet. A sealing plate is spirally installed at the lower end of the outer filter housing. A spring is installed on the sealing plate. The height of the spring is flush with the docking ring. A movable block is installed at the upper end of the spring.

[0009] A first seal is installed inside the docking ring, and the diameter of the movable block is slightly smaller than that of the first seal.

[0010] Preferably, a rigid filter cotton is installed inside the outer filter shell, and the rigid filter cotton is made of glass fiber filter cotton.

[0011] Preferably, an inner filter shell is installed inside the rigid filter cotton. The inner filter shell has a high-density hollow design and a fine filtration cavity. A fixing block is installed on the inner filter shell, and a slot is formed on the fixing block. The rigid filter cotton is locked in the slot.

[0012] Preferably, a rubber ring is installed below the inner filter housing, and a second sealing element is installed on the rubber ring. The rubber ring is located between the rigid filter cotton and the inner filter housing.

[0013] Preferably, the tank body is provided with an insulation layer, and a heating element is installed inside the tank body, the heating element being a quartz heating tube.

[0014] Preferably, a flange is installed on one side surface of the tank, a protective cover is installed on one end of the heating element, a water outlet is installed on the other side surface of the tank, a waste discharge port is installed on the lower surface of the tank, and a support base is installed on the lower surface of the tank.

[0015] The technical effects and advantages of this utility model are as follows:

[0016] 1. The movable block, outer filter shell, and inner filter shell set in this utility model are used to install the filter assembly at the water inlet through the circular ring plate. By filtering the water source, the water quality is improved, the formation of scale is reduced, and the scale inhibition effect is increased, thereby reducing the cleaning frequency. During the filtration process, the water pressure drives the movable block to move up and down, thereby completing the self-cleaning of the filter assembly, extending the service life of the filter assembly, and enhancing the filtration effect. This solves the problem that the existing explosion-proof electric heaters need to be frequently disassembled and cleaned, reducing the labor intensity of workers and extending the service life of the equipment.

[0017] 2. The insulation layer and movable block in this utility model, after heating, the movable block seals the water outlet and the tank body, and the insulation layer keeps the water warm, reducing heat loss and improving the insulation and energy-saving effects. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of an explosion-proof electric heater with a scale-inhibiting structure according to the present invention.

[0019] Figure 2 This is a split view of an explosion-proof electric heater with a scale-inhibiting structure according to the present invention;

[0020] Figure 3 This is a split view of the docking ring of an explosion-proof electric heater with a scale-inhibiting structure according to this utility model;

[0021] Figure 4 This is a split view of the outer filter shell of an explosion-proof electric heater with a scale-inhibiting structure according to the present invention.

[0022] Figure 5 This utility model relates to an explosion-proof electric heater with a scale-inhibiting structure. Figure 4 Enlarged view of point A in the middle;

[0023] In the diagram: 1. Tank body; 2. Outlet; 3. Waste outlet; 4. Inlet; 5. Circular retaining plate; 6. Support base; 7. Flange; 8. Protective cover; 9. Insulation layer; 10. Heating element; 11. Movable block; 12. Connecting ring; 13. No. 1 seal; 14. Outer filter shell; 15. Spring; 16. Sealing plate; 17. Rigid filter cotton; 18. HEPA filter screen; 19. Inner filter shell; 20. Fine filter chamber; 21. Fixing block; 22. No. 2 seal; 23. Rubber ring; 24. Slot. Detailed Implementation

[0024] This utility model provides, for example Figures 1-5 An explosion-proof electric heater with a scale-inhibiting structure is shown, including a tank 1, an inlet 4 installed on the upper surface of the tank 1, and an outer filter shell 14 installed inside the inlet 4.

[0025] The outer filter housing 14 has a multi-segment hollow design. A HEPA filter screen 18 is installed on the outer surface of the outer filter housing 14. A docking ring 12 is installed at the upper end of the outer filter housing 14. A circular ring retaining plate 5 is installed at the upper end of the docking ring 12. The circular ring retaining plate 5 is made of hard rubber and serves as a limit. The circular ring retaining plate 5 is located on the upper surface of the outlet 2. A sealing plate 16 is spirally installed at the lower end of the outer filter housing 14. A spring 15 is installed on the sealing plate 16. The height of the spring 15 is flush with the docking ring 12. A movable block 11 is installed at the upper end of the spring 15.

[0026] A first seal 13 is installed inside the docking ring 12. The diameter of the movable block 11 is slightly smaller than that of the first seal 13. This arrangement allows the movable block 11 to seal the docking ring 12.

[0027] Furthermore, a rigid filter cotton 17 is installed inside the outer filter housing 14. The rigid filter cotton 17 is made of glass fiber filter cotton, which has high filtration efficiency and high temperature resistance.

[0028] Furthermore, an inner filter shell 19 is installed inside the rigid filter cotton 17. The inner filter shell 19 has a high-density hollow design and a fine filter cavity 20 is opened on the inner filter shell 19. A fixing block 21 is installed on the inner filter shell 19, and a slot 24 is opened on the fixing block 21. The rigid filter cotton 17 is locked in the slot 24.

[0029] Furthermore, a rubber ring 23 is installed below the inner filter housing 19, and a second sealing element 22 is installed on the rubber ring 23. The rubber ring 23 is located between the rigid filter cotton 17 and the inner filter housing 19.

[0030] Furthermore, the tank body 1 is provided with an insulation layer 9, and a heating element 10 is installed inside the tank body 1. The heating element 10 is a quartz heating tube. The base material of the quartz heating tube is high-purity silicon dioxide, which will not easily adsorb impurities when heated, thereby inhibiting the formation of scale.

[0031] Furthermore, a flange 7 is installed on one side of the tank body 1, a protective cover 8 is installed on one end of the heating element 10, a water outlet 2 is installed on the other side of the tank body 1, a waste discharge port 3 is installed on the lower surface of the tank body 1, and a support base 6 is installed on the lower surface of the tank body 1.

[0032] During use, water is injected into the inlet 4, and the water pressure impacts the movable block 11, causing the spring 15 to press down. The water flows along the inner filter shell 19 to the rigid filter cotton 17. After preliminary filtration by the rigid filter cotton 17, it flows to the HEPA filter screen 18 on the outer filter shell 14. After filtration, the water flows along the outer filter shell 14 back to the inlet 4. By filtering the water source, water quality is improved, scale formation is reduced, and the scale inhibition effect is increased, thereby reducing the cleaning frequency. At the same time, by opening and closing the water valve each time, the water pressure uses the movable block 11 to clean the filter components, further improving the filtration effect. Furthermore, the use of quartz... The heating element 10 further enhances the scale inhibition effect. The base material of the quartz heating tube is high-purity silicon dioxide, which does not easily adsorb impurities when heated, thus inhibiting the formation of scale. Considering that during use, after the water source is heated, the hot air will dissipate outward along the inlet 4, thereby reducing the heat preservation effect and increasing energy consumption, an insulation layer 9 is set inside the tank 1. During use, when the water source is turned off, the spring 15 will drive the movable block 11 to reset and seal the docking ring 12, so that the tank 1 and the inlet 4 achieve a sealing effect, thereby reducing heat loss and improving the heat preservation and energy saving effect.

Claims

1. An explosion-proof electric heater with scale inhibition structure comprising a tank body (1), characterized in that: The water inlet (4) is mounted on the upper surface of the tank body (1), and an outer filter shell (14) is arranged inside the water inlet (4); The outer filter shell (14) is designed in multiple sections and is hollow, a HEPA filter screen (18) is mounted on the outer surface of the outer filter shell (14), a docking ring (12) is mounted on the upper end of the outer filter shell (14), a circular ring clamping plate (5) is mounted on the upper end of the docking ring (12), the circular ring clamping plate (5) is located on the upper surface of the water outlet (2), a sealing plate (16) is spirally mounted on the lower end of the outer filter shell (14), a spring (15) is mounted on the sealing plate (16), the height of the spring (15) is flush with the docking ring (12), and a movable block (11) is mounted on the upper end of the spring (15); The docking ring (12) is internally provided with a first sealing element (13), and the diameter of the movable block (11) is slightly smaller than that of the first sealing element (13).

2. The explosion-proof electric heater with scale inhibition structure according to claim 1, characterized in that: The outer filter shell (14) is internally provided with a hard filter cotton (17), and the material of the hard filter cotton (17) is glass fiber filter cotton.

3. The explosion-proof electric heater with scale inhibition structure according to claim 2, characterized in that: The inner filter shell (19) is internally provided with a hard filter cotton (17), and the material of the hard filter cotton (17) is glass fiber filter cotton.

4. The explosion-proof electric heater with scale inhibition structure according to claim 3, characterized in that: The inner filter shell (19) is internally provided with a hard filter cotton (17), and the material of the hard filter cotton (17) is glass fiber filter cotton.

5. The explosion-proof electric heater with scale inhibition structure according to claim 4, characterized in that: The inner filter shell (19) is internally provided with a hard filter cotton (17), and the material of the hard filter cotton (17) is glass fiber filter cotton.

6. The explosion-proof electric heater with scale inhibition structure according to claim 5, characterized in that: The inner filter shell (19) is internally provided with a hard filter cotton (17), and the material of the hard filter cotton (17) is glass fiber filter cotton. The tank body (1) is internally provided with a heat preservation layer (9), and a heating element (10) is mounted in the tank body (1), wherein the heating element (10) is a quartz heating tube. A flange (7) is mounted on one side surface of the tank body (1), a protective cover (8) is mounted on one end of the heating element (10), a water outlet (2) is mounted on the other side surface of the tank body (1), a waste outlet (3) is mounted on the lower surface of the tank body (1), and a supporting base (6) is mounted on the lower surface of the tank body (1).

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