Steam generator for steam equipment

Abstract

The invention relates to the technical field of steam equipment, in particular to a steam generator for steam equipment, which comprises a shell, a heating cavity arranged in the shell, a dirt storage cavity positioned below the heating cavity, a water inlet and an air outlet, the water inlet and the air outlet are correspondingly arranged on the shell and communicated with the heating cavity, and the water inlet is obliquely arranged on the front side of the top of the shell. The air outlet is formed in the rear side of the top of the shell, the central axis is perpendicular to the outer surface of the shell, and an inner pipe opening of the air outlet is located above the heating cavity and the dirt storage cavity. And the heating body is assembled in the heating cavity and adopts a U-shaped heating pipe structure for increasing the heating surface area. A traditional U-shaped electric heating pipe is adopted to replace a single-head heating pipe, and an air outlet structure of the steam generator is optimized, so that the heating efficiency is improved; the cost is reduced; the air outlet is not easily blocked.

Description

Technical Field

[0001] The present invention relates to the technical field of steam equipment, and particularly to a steam generator for steam equipment. Background Art

[0002] At present, most small steam generators on the market use single-head heating tubes. For example, the patent application number CN117628479A discloses a steam generator and an intelligent device, which proposes a steam generating device using a single-head heating tube. This device locally heats the clear water injected from the water inlet through a heating body to generate steam, and discharges the steam through an air outlet. However, the deficiencies of the reference solution are mainly reflected in:

[0003] 1. Low thermal efficiency: The heating wire of the single-head tube is far from the tube wall, and a large amount of heat energy is wasted during the heat conduction process;

[0004] 2. High cost: The powder filling process of the single-head tube is complex, and it is difficult to automate production. Manual powder filling has high manufacturing costs and low production capacity;

[0005] 3. The outlet steam temperature is relatively low: Usually it can only reach about 140°C; The air outlet is easy to be blocked:

[0006] 4. In this patent, the air outlet is located on the axial direction of the heating body. When high-temperature steam flows through the surface of the heating body, it will carry some fine water scales towards the air outlet, and the gradually accumulated water scales falling into the air outlet will affect the steam output effect. Summary of the Invention

[0007] In order to solve the above technical problems, the present invention proposes a steam generator for steam equipment.

[0008] The technical problems to be solved by the present invention are realized by adopting the following technical solutions:

[0009] A steam generator for steam equipment includes a housing, a heating chamber arranged inside the housing, a scale storage chamber located below the heating chamber, a water inlet and an air outlet correspondingly arranged on the housing and communicating with the heating chamber. The water inlet is arranged obliquely at the front side of the top of the housing, and the air outlet is arranged at the rear side of the top of the housing, and the central axis is perpendicular to the outer surface of the housing. The inner pipe orifice of the air outlet is located above the heating chamber and the scale storage chamber;

[0010] It further includes a heating body assembled inside the heating chamber, and the heating body adopts a U-shaped heating tube structure with an increased heating surface area.

[0011] As a further improvement of the present invention, the area near the water inlet in the heating chamber is a low-temperature area, and the area near the air outlet is a high-temperature area.

[0012] As a further improvement of the present invention, the inner pipe orifice of the air outlet is located above the high-temperature area, and the scale storage chamber is located below the high-temperature area.

[0013] As a further improvement of the present invention, the heating element includes cold needles provided at both ends, a heating wire provided inside and welded to the cold needles, and a heat-conducting insulating filler filled inside.

[0014] As a further improvement of the present invention, a flange is welded to the end of the outer tube of the heating element, and the flange is assembled on the housing by screws.

[0015] As a further improvement of the present invention, a sealing ring is provided between the flange and the housing.

[0016] As a further improvement of the present invention, a rear cover is welded to the tail of the housing.

[0017] As a further improvement of the present invention, a thermostat is provided between the water inlet and the air outlet at the top of the housing.

[0018] As a further improvement of the present invention, a thermal fuse and a temperature sensor are fixedly connected to the outside of the housing through a pressing plate and screws.

[0019] The beneficial effects of the present invention are as follows:

[0020] The present invention provides a steam generator for steam equipment. By using a traditional U-shaped electric heating tube to replace a single-head heating tube and optimizing the air outlet structure of the steam generator, the heating efficiency is improved: the heating wire of the U-shaped heating tube is closer to the tube wall, reducing heat loss during the heat conduction process, having a larger heating surface area and the tube body can store water, with a higher steam output efficiency, energy conservation and emission reduction; the cost is reduced: the U-shaped electric heating tube can usually be produced automatically, with high efficiency and low manufacturing cost; it is not easy to block the air outlet: the water scale will slide into the scale storage cavity from the air outlet due to the action of gravity. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below with reference to the drawings and embodiments:

[0022] Figure 1 is a schematic cross-sectional structure view of the present invention;

[0023] Figure 2 is a schematic cross-sectional structure view of the present invention;

[0024] Figure 3 is a schematic cross-sectional structure view of the heating element in the present invention.

[0025] In the figure: 1. Housing; 101. Heating cavity; 102. Scale storage cavity; 2. Heating element; 201. Low-temperature area; 202. High-temperature area; 203. Cold needle; 204. Heat-conducting insulating filler; 205. Heating wire; 3. Water inlet; 4. Air outlet; 5. Rear cover; 6. Sealing ring; 7. Flange; 8. Screw; 9. Thermostat; 10. Thermal fuse; 11. Temperature sensor; 12. Pressing plate. Specific Embodiments

[0026] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with the drawings and embodiments.

[0027] As Figures 1 to 3 shown, a steam generator for a steam device includes a housing 1, a heating element 2, a screw 8, a thermostat 9, a thermal fuse 10, a temperature sensor 11 and a pressing plate 12.

[0028] Inside the housing 1, a heating chamber 101 and a scale deposit chamber 102 are provided. A rear cover 5 is welded to the tail of the housing 1. The scale deposit chamber 102 is located below the heating chamber 101. An inlet 3 and an outlet 4 communicating with the heating chamber 101 are respectively formed at the front side and the rear side of the top of the housing 1. The area near the inlet 3 in the heating chamber 101 is a low-temperature area 201, and the area near the outlet 4 is a high-temperature area 202. Further, the scale deposit chamber 102 is located below the high-temperature area 202. The inlet 3 has an inclined structure, which is convenient for water injection and saves space. The central axis of the outlet 4 is perpendicular to the outer surface of the housing 1, and the inner pipe orifice of the outlet 4 is located above the high-temperature area 202. By optimizing the position of the outlet 4, when water is heated, insoluble scale will precipitate. The water mist has a certain kinetic energy during the flow to the outlet 4. Therefore, during the movement of the water mist mixed with scale particles, the scale particles settle into the scale deposit chamber 102 under the action of gravity; this not only helps the smooth discharge of high-temperature steam, optimizes the flow path of the steam, but also facilitates the scale particles entering the outlet 4 to fall off under the action of gravity, thereby effectively improving the service life and operating efficiency of the steam generator.

[0029] A flange 7 is welded to the outer pipe end of the heating element 2, and the heating element 2 is assembled in the heating chamber 101 inside the housing 1 through the flange 7 and the screw 8. In this embodiment, the heating element 2 adopts a U-shaped heating tube structure with an increased heating surface area. A heating wire 205 is provided inside it, and two cold pins 203 extending to the outside of the heating element 2 are provided at both ends of the pipe orifice. The other ends of the two cold pins 203 are respectively welded to the heating wire 205. A heat-conducting insulating filler is also provided inside the heating element 2. Compared with the current steam generator technology, it has the advantages of improving heating efficiency and reducing costs. The heating wire 205 inside the U-shaped heating tube structure of the heating element 2 is closer to the tube wall of the heating element 2, reducing heat loss during the heat conduction process, and having a larger heating surface area and the tube body can store water, so the steam output efficiency is higher, saving energy and reducing emissions.

[0030] Further, a sealing ring 6 is also provided between the flange 7 and the housing 1 to enhance the sealing performance and ensure the stable operation of the system.

[0031] Further, a thermal fuse 10 and a temperature sensor 11 are provided outside the housing 1, and the thermal fuse 10 and the temperature sensor 11 are fixed outside the housing 1 through the pressing plate 12 and the screw 8; a thermostat 9 is provided at the top of the housing 1 and between the water inlet 3 and the air outlet 4.

[0032] The working principle and usage process of the present invention:

[0033] During use, water is injected into the heating chamber 101 through the water inlet 3 by using an external water pump. The water first drips onto the surface of the heating element 2. A part of the water stays on its surface and is quickly heated and atomized under the continuous heating action of the heating element 2; the remaining water falls into the low-temperature area 201. During the continuous heating process of the heating element 2, the water in the low-temperature area 201 is also gradually heated until it is atomized, so as to achieve continuous and stable water mist output. In the steam generated after the water is heated and atomized, the part with a higher temperature tends to rise and is further heated when passing through the high-temperature area 202, and then is discharged from the air outlet 4 provided at the top of the steam generator. Since scale insoluble in water will precipitate during the heating process of the water, the water mist has a certain kinetic energy during the flow to the air outlet 4, so that during the movement of the water mist mixed with scale particles, the scale particles settle to the scale storage chamber 102 under the action of gravity. The air outlet 4 provided at the top not only helps the smooth discharge of the high-temperature steam and optimizes the flow path of the steam, but also facilitates the scale particles entering the air outlet 4 to fall off under the action of gravity, thereby effectively improving the service life and operation efficiency of the steam generator.

[0034] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A steam generator for a steam device, comprising a housing (1), a heating chamber (101) arranged inside the housing (1), a scale deposit chamber (102) located below the heating chamber (101), a water inlet (3) and an air outlet (4) correspondingly arranged on the housing (1) and communicating with the heating chamber (101), characterized in that: The water inlet (3) is arranged obliquely at the front side of the top of the housing (1), and the air outlet (4) is arranged at the rear side of the top of the housing (1), with its central axis perpendicular to the outer surface of the housing (1). The inner pipe orifice of the air outlet (4) is located above the heating chamber (101) and the scale deposit chamber (102). It further includes a heating element (2) assembled inside the heating chamber (101), and the heating element (2) adopts a U-shaped heating pipe structure with an increased heating surface area.

2. The steam generator for a steam device according to claim 1, wherein: The area near the water inlet (3) in the heating chamber (101) is the low-temperature zone (201), and the area near the air outlet (4) is the high-temperature zone (202).

3. The steam generator for a steam device according to claim 2, characterized in that: The inner pipe orifice of the air outlet (4) is located above the high-temperature zone (202), and the scale deposit chamber (102) is located below the high-temperature zone (202).

4. A steam generator for a steam device according to claim 1, characterized in that: The heating element (2) includes cold needles (203) arranged at both ends, a heating wire (205) arranged inside and welded to the cold needles (203), and a thermally conductive insulating filler (204) filled inside.

5. A steam generator for a steam device according to claim 1, characterized in that: A flange (7) is welded to the outer pipe end of the heating element (2), and the flange (7) is assembled on the housing (1) through screws (8).

6. The steam generator for a steam device according to claim 5, characterized in that: A sealing ring (6) is arranged between the flange (7) and the housing (1).

7. The steam generator for a steam device according to claim 1, characterized in that: A rear cover (5) is welded to the tail of the housing (1).

8. A steam generator for a steam device according to claim 1, characterized in that: A thermostat (9) is arranged between the water inlet (3) and the air outlet (4) at the top of the housing (1).

9. A steam generator for a steam device according to claim 1, characterized in that: A thermal fuse (10) and a temperature sensor (11) are fixedly connected to the outside of the housing (1) through a pressing plate (12) and screws (8).

Images