Steam generator

Abstract

The utility model relates to a steam generator, which belongs to the technical field of steam equipment and comprises a shell, a water inlet pipe arranged on the shell, a water outlet pipe arranged on the shell, a heating device for heating water input from the water inlet pipe and a protection device for limiting the heating device, the heating device is provided with a water inlet connector used for being connected with the water inlet pipe and a water outlet connector used for being connected with the water outlet pipe. The protection device comprises an anti-dry-burning temperature controller and a thermal fuse, wherein the anti-dry-burning temperature controller is connected with the heating device and used for monitoring the temperature of the heating device, and the thermal fuse is connected with the heating device and used for carrying out anti-dry-burning protection on the heating device. The steam generator has the effect of reducing the probability of safety accidents of the steam generator.

Description

Technical Field

[0001] This application relates to the field of steam equipment technology, and in particular to a steam generator. Background Technology

[0002] A steam generator is a mechanical device used to produce steam. It uses the thermal energy of fuel or other energy sources to heat water into hot water or steam and is widely used in many fields such as papermaking, metallurgy, power, and heating.

[0003] Existing steam generators mainly consist of a shell, an inlet pipe installed on the shell, an outlet pipe installed on the shell, a heating device for heating water, and a protection device for limiting the heating device. In practical applications, the protection devices of these steam generators are often not sensitive or timely enough, failing to react as soon as an abnormal temperature occurs, potentially leading to overheating, equipment damage, or even safety accidents.

[0004] In response to the aforementioned technologies, the inventor provides a steam generator. Utility Model Content

[0005] In order to reduce the probability of safety accidents in steam generators, this application provides a steam generator.

[0006] The steam generator provided in this application adopts the following technical solution:

[0007] A steam generator includes a housing, an inlet pipe disposed in the housing, an outlet pipe disposed in the housing, a heating device for heating water input from the inlet pipe, and a protection device for limiting the heating device; the heating device is provided with an inlet connector for connecting to the inlet pipe and an outlet connector for connecting to the outlet pipe; the protection device includes a dry-burning thermostat connected to the heating device for monitoring the temperature of the heating device and a thermal fuse connected to the heating device for providing dry-burning protection to the heating device, the thermal fuse being attached to the bottom of the heating device.

[0008] By adopting the above technical solution, during the operation of the steam generator, water is transported from the inlet pipe to the heating device for heating to generate steam, and the heated water is transported out through the outlet pipe. When the anti-dry-burning thermostat detects that the heating device is overloaded and overheating, the anti-dry-burning thermostat will cut off the power supply in time. If the anti-dry-burning thermostat fails to react in time, the thermal fuse can promptly melt the circuit connected to the heating device, thereby reducing the probability of a safety accident in the steam generator.

[0009] Optionally, the heating device includes a heating shell, a circulation pipe arranged in the inner cavity of the heating shell, a heating film arranged on the top surface of the heating shell for heating the water in the circulation pipe, and two lead posts connected to the anti-dry-burning thermostat and the thermal fuse. The circulation pipe is arranged in a U-shape in the inner cavity of the heating shell.

[0010] By adopting the above technical solution, the structure of the heating device is disclosed. During the operation of the heating device, the water in the circulation pipe located in the inner cavity of the heating shell is heated by the heating film installed on the top surface of the heating shell. The setting of the guide post allows the anti-dry burning thermostat and thermal fuse to be connected to the heating device, so as to promptly provide feedback on the abnormality of the heating device. The U-shaped circulation pipe helps to improve the heat exchange rate, so that the water input from the water inlet pipe can be fully heated in the heating shell.

[0011] Optionally, the top of the heating housing is provided with a first mounting plate extending away from the heating housing and for arranging the guide post, and the inner cavity of the housing is provided with an abutment plate for the bottom surface of the mounting plate to abut against.

[0012] By adopting the above technical solution, the first mounting plate provides a stable mounting platform for the guide column, and the abutment plate provides support for the first mounting plate, reducing the probability of the guide column shifting during the operation of the steam generator and ensuring the safe operation of the steam generator.

[0013] Optionally, the housing includes an upper housing and a lower housing. The lower housing has a first threaded post vertically disposed on its side wall for threaded fixing to the upper housing, and the lower housing has a mounting seat at the bottom of the first threaded post extending in a direction away from the upper housing.

[0014] By adopting the above technical solution, the upper shell and the upper shell are connected by screws, making the connection between the upper shells tighter. At the same time, the bottom of the first threaded post is provided with a mounting seat extending towards the upper shell, which can be easily connected or fixed with other components, improving the overall structural stability and installation convenience of the steam generator.

[0015] Optionally, the outer side wall of the lower housing is further provided with a snap-fit ​​seat, and the upper housing has an extension plate extending toward the lower housing, the extension plate having a snap-fit ​​groove for snapping into the snap-fit ​​seat.

[0016] By adopting the above technical solution, the cooperation between the snap-fit ​​seat and the snap-fit ​​groove can achieve rapid positioning and fixing between the upper and lower housings, improve assembly efficiency, and ensure structural stability and sealing.

[0017] Optionally, the lower housing has an arrangement groove for arranging the thermal fuse, the arrangement groove having support plates spaced apart along the length of the arrangement groove for supporting the thermal fuse.

[0018] By adopting the above technical solution, an arrangement groove for arranging the heating fuse is provided in the lower shell, and a support plate is provided in the arrangement groove. This helps to provide stable support for the heating fuse and reduce the probability that the heating fuse will move during the operation of the steam generator and affect the safe operation of the steam generator.

[0019] Optionally, the support plate has a V-groove for accommodating the thermal fuse.

[0020] By adopting the above technical solution, the V-shaped support groove helps to provide stable support for the thermal fuse, further reducing the probability of the thermal fuse shifting during operation.

[0021] Optionally, the bottom of the inner wall of the lower housing is further provided with an abutment strip for contact with the bottom of the heating housing.

[0022] By adopting the above technical solution, the setting of the abutment strip helps to provide support for the heating shell.

[0023] This reduces the probability of the heating shell shifting during operation, improves the structural stability of the steam generator, and ensures the safe operation of the steam generator.

[0024] Optionally, the arrangement groove extends through both sides of the lower housing, and the lower housing has lower limiting grooves at both ends of the arrangement groove for arranging the thermal fuse. The upper housing has a limiting plate extending toward the lower housing, the limiting plate is attached to the lower housing, and the limiting plate has an upper limiting groove that cooperates with the lower limiting groove.

[0025] By adopting the above technical solution, the thermal fuse can be stably positioned in the arrangement groove through the cooperation between the upper limit groove and the lower limit groove. This ensures that the thermal fuse can be connected to the external control circuit while reducing the probability of the thermal fuse moving during operation.

[0026] Optionally, the upper housing has an installation through hole for arranging the anti-dry-burning thermostat, and the upper housing has second threaded posts at both ends of the installation through hole. The anti-dry-burning thermostat includes a second mounting plate with a strip-shaped hole, and the anti-dry-burning thermostat is fixed to the upper housing by screws.

[0027] By adopting the above technical solution, and through the installation of ventilation and the second threaded posts at both ends of the mounting hole, the temperature measuring device can be stably mounted on the upper housing, which helps to reduce the probability of the temperature measuring device shifting during operation. The strip-shaped holes on the second mounting plate allow the temperature measuring device to be adjusted within a certain range.

[0028] In summary, this application includes at least one of the following beneficial technical effects:

[0029] 1. A steam generator, wherein during the operation of the steam generator, water is transported from the inlet pipe to the heating device for heating, and the heated water is transported out through the outlet pipe. When the anti-dry-burning thermostat detects that the heating device is overloaded and overheating, the anti-dry-burning thermostat will cut off the power supply in time. When the anti-dry-burning thermostat fails to react in time, the thermal fuse can melt the circuit connected to the heating device in time, thereby reducing the probability of a safety accident of the steam generator.

[0030] 2. By engaging the upper snap-fit ​​seat on the lower housing with the upper snap-fit ​​groove on the upper housing, rapid positioning and fixing between the upper and lower housings can be achieved, improving assembly efficiency;

[0031] 3. The arrangement of support plates in the grooves and V-shaped support grooves in the support plates helps to provide stable support for the thermal fuse and reduce the probability of the thermal fuse shifting during operation. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the steam generator in an embodiment of this application.

[0033] Figure 2 This is an explosion diagram of the steam generator in an embodiment of this application.

[0034] Figure 3 This is a cross-sectional schematic diagram of the heating device in an embodiment of this application.

[0035] Figure 4 This is a schematic diagram of the engagement between the card holder and the card slot in an embodiment of this application.

[0036] Figure 5 This is a schematic diagram of the heating device, thermal fuse, and lower housing in an embodiment of this application.

[0037] Figure 6 This is a schematic diagram of the upper and lower shells fitting together in an embodiment of this application.

[0038] Figure 7 This is a schematic diagram of the anti-dry-burning thermostat and its fit with the upper housing in an embodiment of this application.

[0039] Explanation of reference numerals in the attached drawings: 1. Upper housing; 11. Extension plate; 111. Snap-fit ​​groove; 12. Limiting plate; 121. Upper limiting groove; 13. Upper arc groove; 14. Mounting through hole; 15. Second threaded post; 2. Lower housing; 21. First threaded post; 22. Snap-fit ​​seat; 23. Mounting seat; 24. Arrangement groove; 241. Support plate; 2411. V-groove; 25. Abutment strip; 26. Abutment plate; 27. Lower limiting groove; 28. Lower arc groove; 3. Water inlet pipe; 4. Water outlet pipe; 5. Heating device; 51. Heating housing; 511. Water inlet connector; 512. Water outlet connector; 513. First mounting plate; 52. Circulation pipe; 53. Heating membrane; 54. Guide post; 61. Anti-dry burning thermostat; 611. Second mounting plate; 6111. Strip hole; 62. Thermal fuse. Detailed Implementation

[0040] The following is in conjunction with the appendix Figure 1-7 This application will be described in further detail.

[0041] This application discloses a steam generator.

[0042] Reference Figure 1 and Figure 2 A steam generator includes a housing, an inlet pipe 3 disposed on the housing, an outlet pipe 4 disposed on the housing, a heating device 5 for heating water input from the inlet pipe 3, and a protective device for limiting the heating device 5. The inlet pipe 3 is connected to a water storage device, thereby conveying water from the storage device to the heating device 5 and heating it to form steam. The protective device includes a dry-burning thermostat 61 connected to the heating device 5 for monitoring the temperature of the heating device 5, and a thermal fuse 62 connected to the heating device 5 for providing dry-burning protection.

[0043] Reference Figure 2 and Figure 3 The heating device 5 includes a heating shell 51, a circulation pipe 52 arranged inside the heating shell 51, a heating film 53 arranged on the top surface of the heating shell 51 for heating the water in the circulation pipe 52, and two guide posts 54. The heating shell 51 is provided with an inlet connector 511 for connecting to the inlet pipe 3 and an outlet connector 512 for connecting to the outlet pipe 4. One end of the circulation pipe 52 is connected to the inlet pipe 3 via the inlet connector 511, and the other end is connected to the outlet pipe 4 via the outlet connector 512. The circulation pipe 52 is arranged in a U-shape inside the heating shell 51. The top of the heating shell 51 is provided with a first mounting plate 513 extending away from the heating shell 51 for arranging the guide posts 54. One of the two guide posts 54 is connected to an anti-dry-burning thermostat 61, and the other is connected to a thermal fuse 62, enabling the anti-dry-burning thermostat 61 and the thermal fuse 62 to react promptly to any abnormalities in the heating device 5.

[0044] Reference Figure 2 and Figure 4 The housing includes an upper housing 1 and a lower housing 2. A first threaded post 21 is vertically installed on the side wall of the lower housing 2. The upper housing 1 and the lower housing 2 are connected and fixed by screws. To initially fix the upper housing 1 and the lower housing 2, a snap-fit ​​seat 22 is also provided on the outer side wall of the lower housing 2. The upper housing 1 has an extension plate 11 extending towards the lower housing 2, and the extension plate 11 has a snap-fit ​​groove 111 for snap-fitting the snap-fit ​​seat 22. To facilitate the installation and fixing of the steam generator, the lower housing 2 also has a mounting base 23 extending away from the upper housing 1 at the bottom of the first threaded post 21.

[0045] Reference Figure 5 and Figure 6 The thermal fuse 62 is attached to the bottom of the heating housing 51. The lower housing 2 has an arrangement groove 24 for arranging the thermal fuse 62. The arrangement groove 24 is obliquely arranged and extends through the two opposite sides of the lower housing 2. Support plates 241 are provided within the arrangement groove 24, spaced along the length of the arrangement groove 24, for supporting the thermal fuse 62. The support plates 241 have V-shaped grooves 2411 for arranging the thermal fuse 62, which helps to provide ideal support for the thermal fuse 62. To reduce the probability of the heating device 5 shifting when the thermal fuse 62 is arranged in the arrangement groove 24, the bottom of the inner wall of the lower housing 2 is also provided with an abutment strip 25 for the bottom of the heating housing 51 to abut, and an abutment plate 26 is vertically arranged for the bottom surface of the first mounting plate 513 on which the conductor post 54 is arranged to abut. The other end of the thermal fuse 62 is connected to the control circuit. To allow the thermal fuse 62 to extend from the housing, the lower housing 2 has lower limiting grooves 27 at both ends of the arrangement groove 24 for arranging the thermal fuse 62. The upper housing 1 has a limiting plate 12 extending towards the lower housing 2. The inner wall of the limiting plate 12 is attached to the outer wall of the lower housing 2, and the limiting plate 12 has an upper limiting groove 121 that cooperates with the lower limiting groove 27. In this embodiment, the thermal fuse 62 is a fuse wire. When the temperature is too high and reaches the melting point of the fuse wire, the fuse wire melts, thereby cutting off the circuit and blocking the operation of the heating device 5.

[0046] Reference Figure 2 and Figure 6 To facilitate the installation of the inlet pipe 3 and the outlet pipe 4, the lower housing 2 has a lower arc-shaped groove 28, and the upper housing 1 has an upper arc-shaped groove 13 that cooperates with the lower arc-shaped groove 28 to allow the inlet pipe 3 and the outlet pipe 4 to pass through. In this embodiment, the inlet pipe 3 and the outlet pipe 4 are arranged on both sides of the housing.

[0047] Reference Figure 2 and Figure 7The anti-dry-burning thermostat 61 is installed on the top of the heating device 5, and the anti-dry-burning thermostat 61 includes a second mounting plate 611 for mounting and fixing. The upper housing 1 has a mounting through hole 14 for arranging the anti-dry-burning thermostat 61, and the top surface of the upper housing 1 has second threaded posts 15 at both ends of the mounting through hole 14. The second mounting plate 611 has a strip hole 6111, and the anti-dry-burning thermostat 61 is fixed to the upper housing 1 by screws.

[0048] The implementation principle of a steam generator according to an embodiment of this application is as follows: During the operation of the steam generator, water is transported from the inlet pipe 3 to the heating device 5 for heating to generate steam, and then the heated water is transported out through the outlet pipe 4. During the heating process of the heating device 5, the temperature measuring device will monitor the temperature of the heating device 5 in real time. When the anti-dry burning thermostat 61 detects that the heating device 5 is overloaded and overheated, the thermal fuse 62 will cut off the control circuit connected to the heating device 5 in time, thereby reducing the probability of a safety accident caused by the steam generator being overloaded and overheated.

[0049] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A steam generator, characterized by, The utility model provides a water heater, which comprises a shell, a water inlet pipe (3) arranged in the shell, a water outlet pipe (4) arranged in the shell, a heating device (5) for heating water input from the water inlet pipe (3), and a protection device for limiting the heating device (5); the heating device (5) is provided with a water inlet joint (511) for connecting with the water inlet pipe (3) and a water outlet joint (512) for connecting with the water outlet pipe (4); the protection device comprises a dry burning prevention temperature controller (61) connected with the heating device (5) and used for monitoring the temperature of the heating device (5) and a thermal fuse (62) connected with the heating device (5) and used for dry burning prevention protection of the heating device (5); the thermal fuse (62) is attached to the bottom of the heating device (5).

2. A steam generator according to claim 1, wherein The heating device (5) comprises a heating shell (51), a circulating pipe (52) arranged in the inner cavity of the heating shell (51), a heating film (53) arranged on the top surface of the heating shell (51) and used for heating water in the circulating pipe (52), and two lead columns (54) connected with the dry burning prevention temperature controller (61) and the thermal fuse (62); the circulating pipe (52) is arranged in the inner cavity of the heating shell (51) in a U shape.

3. A steam generator according to claim 2, wherein The top of the heating shell (51) is provided with a first mounting plate (513) extending away from the heating shell (51) and used for arranging the lead columns (54); the inner cavity of the shell is provided with an abutting plate (26) used for abutting the bottom surface of the first mounting plate (513).

4. A steam generator according to claim 3, wherein The shell comprises an upper shell (1) and a lower shell (2); a first threaded column (21) is vertically arranged on the side wall of the lower shell (2) and used for threadedly fixing with the upper shell (1); the bottom of the first threaded column (21) of the lower shell (2) is provided with a mounting seat (23) extending away from the upper shell (1).

5. A steam generator according to claim 4, wherein The outer side wall of the lower shell (2) is further provided with a clamping seat (22); the upper shell (1) has an extension plate (11) extending towards the lower shell (2); the extension plate (11) has a clamping groove (111) used for clamping the clamping seat (22).

6. A steam generator according to claim 4, wherein The lower shell (2) has an arrangement groove (24) used for arranging the thermal fuse (62); the arrangement groove (24) is provided with support plates (241) arranged along the length direction of the arrangement groove (24) and used for supporting the thermal fuse (62).

7. A steam generator according to claim 6, wherein The support plate (241) has a V-shaped groove (2411) used for arranging the thermal fuse (62).

8. A steam generator according to claim 6, wherein The inner wall of the lower shell (2) is further provided with an abutting strip (25) used for abutting the bottom of the heating shell (51).

9. A steam generator according to claim 6, wherein The arrangement recess (24) penetrates through two side faces of the lower shell (2), the lower shell (2) is provided with a lower limiting groove (27) at two ends of the arrangement recess (24) for arranging the thermal fuse (62), the upper shell (1) has a limiting plate (12) extending towards the lower shell (2), the limiting plate (12) is attached to the lower shell (2) and the limiting plate (12) has an upper limiting groove (121) matched with the lower limiting groove (27).

10. A steam generator according to claim 9, wherein The upper shell (1) is provided with a mounting through hole (14) for arranging the dry burning prevention temperature controller (61) and the upper shell (1) is provided with a second threaded column (15) at two ends of the mounting through hole (14), the dry burning prevention temperature controller (61) comprises a second mounting plate (611), the second mounting plate (611) is provided with a strip-shaped hole (6111), and the dry burning prevention temperature controller (61) is fixed to the upper shell (1) through a screw.

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