A steam generating device

Abstract

This invention discloses a steam generating device, belonging to the technical field of steam generating equipment. It includes a device body with a water inlet and a steam outlet at both ends. The device body has a water space and a steam space respectively connected to the water inlet and the steam outlet. A heating pipe for heating the water flow in the water space is inserted through the device body. A water inlet groove is formed in the device body, located in the water space and connected to the water inlet. The water inlet groove is located at the free end of the water space away from the steam space, and its two sides are close to the two sides of the device body in the width direction. This invention effectively prevents scale buildup inside the casing from clogging the steam outlet, ensuring the steam output of the steam outlet.

Description

Technical Field

[0001] This invention relates to the field of steam generating equipment, and more particularly to a steam generating apparatus. Background Technology

[0002] A steam generator is a device that heats water and converts it into steam. It is widely used in industries such as industrial, energy, medical, and food processing. The core function of a steam generator is to use thermal energy (from fuel combustion, electricity, nuclear energy, or other heat sources) to cause a phase change in liquid water, turning it into gaseous steam.

[0003] A steam generator typically includes a housing and a heating tube installed in the housing. One end of the housing has a water inlet and the other end has a steam outlet. Water is introduced into the water inlet so that the heating tube heats the water. The steam generated by the heated water is discharged through the steam outlet.

[0004] The existing technology has some shortcomings. The water entering the shell through the inlet is heated and then turns into steam before flowing out directly from the steam outlet. The contact area between the heating tube and the water in the water space is small, which makes the heating tube prone to dry burning and is not conducive to ensuring the service life of the heating tube. Utility Model Content

[0005] In order to increase the contact area between the heating tube and the water flow in the water space, so that the heating tube is less likely to dry-burn and thus ensure the service life of the heating tube, this application provides a steam generating device.

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

[0007] A steam generating device includes a device body with a water inlet and a steam outlet at both ends. The device body has a water space and a steam space that are respectively connected to the water inlet and the steam outlet. The device body has a heating pipe for heating the water flow in the water space. The device body has a water inlet groove located in the water space and connected to the water inlet. The water inlet groove is located at the free end of the water space away from the steam space, and the two side walls of the water inlet groove are close to the two sides of the width direction of the device body.

[0008] By adopting the above technical solution, water flows into the water inlet tank through the inlet. When the water in the water space is heated in the water inlet space, the heating part of the heating tube has a larger contact area with the water in the water space, which is conducive to improving the steam generation efficiency. At the same time, it makes the heating tube less prone to dry burning, which is conducive to ensuring the service life of the heating tube.

[0009] Optionally, the device body includes an upper cover, a middle shell, and a lower cover. The upper cover and the lower cover are located on opposite sides of the middle shell. The middle shell is fixedly connected to a baffle that separates the water space and the steam space. The baffle has a steam guide port that connects the water space and the steam space. The water inlet tank includes a water inlet section, a scale accumulation section, and a connecting section. The water inlet section and the scale accumulation section are both located in the middle shell and extend through it along the thickness direction of the middle shell. The water inlet section and the scale accumulation section are located near the two corners of the middle shell. The water inlet is connected to the water inlet section. The connecting section is located on the side of the middle shell facing the lower cover and is connected to the water inlet section and the scale accumulation section.

[0010] By adopting the above technical solution, the baffle separates the water space and the steam space, so that the scale and bubbles generated in the water space during heating are not easily allowed to directly enter the steam space, which helps to ensure the steam discharge of the steam port. In addition, when too much scale accumulates in the middle shell, the middle shell can be removed, and the through water inlet section and scale accumulation section are easier to clean.

[0011] Optionally, the steam guide port and the scale accumulation section are located on the same side, and the intermediate shell is fixedly connected with a guide strip. The guide strip is located in the water space and is inclined towards the baffle. The side of the intermediate shell facing the top cover is recessed with a steam discharge groove. The steam discharge groove is located in the steam space. The steam port is connected to the steam discharge groove and is located near the bottom wall of the steam discharge groove. The bottom wall of the steam discharge groove is fixedly provided with multiple baffles.

[0012] By adopting the above technical solution, the steam generated by heating the water flow in the water space has a longer flow path when it enters the steam space due to the obstruction of the guide strips and baffles, which makes it easier for more scale to be retained and deposited in the water space. Moreover, when the water flow in the water space is heated into steam and enters the steam space, it first enters the steam discharge tank and then is discharged through the steam outlet. The baffles in the steam discharge tank further block the scale in the steam, so that the scale contained in the steam is less likely to enter the steam outlet and cause blockage.

[0013] Optionally, the intermediate housing has an annular sealing groove on the side facing the lower cover, the connecting section is located in the area enclosed by the annular sealing groove, and the side of the lower cover facing the intermediate housing is fixedly connected to an annular sealing part corresponding to and engaging with the annular sealing groove, and an annular sealing ring is provided between the annular sealing part and the annular sealing groove.

[0014] By adopting the above technical solution, it is beneficial to ensure the sealing stability of the water flow location in the connection section area, making it less likely for the water flow to leak outside the connection section area.

[0015] Optionally, the lower cover has a connecting groove and a heat insulation groove on the side facing the middle shell. The connecting groove corresponds to the position of the connecting section and is located within the area enclosed by the annular sealing part, while the heat insulation groove is located outside the area enclosed by the annular sealing part.

[0016] By adopting the above technical solution, the setting of the connecting lower tank is conducive to further increasing the water volume in the water space and ensuring the steam generation efficiency. The setting of the heat insulation tank reduces the contact area between the lower cover and the middle shell, thereby reducing heat transfer and helping to avoid damage to other components due to excessive temperature of the lower cover.

[0017] Optionally, the water inlet section and the scale accumulation section are symmetrically arranged. Each water inlet section and scale accumulation section includes a first side, a second side, and a heating arc-shaped edge. The first side and the second side are perpendicular to each other and are arranged in an arc transition. The two ends of the heating arc-shaped edge are connected to the first side and the second side respectively and are arranged in an arc transition with the first side and the second side. The heating arc-shaped edge is used to heat the water flow in the water space.

[0018] By adopting the above technical solution, the heating of the arc-shaped edge and the setting of each arc transition point play a buffering and guiding role for the water flow in the water space, making it easier for the water flow to flow more stably in the water space.

[0019] Optionally, an isolation sleeve is provided on the side of the intermediate shell facing the lower cover. The isolation sleeve includes an integrally fixed water inlet isolation part, a connecting isolation part, and a scale accumulation isolation part. The water inlet isolation part, the connecting isolation part, and the scale accumulation isolation part are respectively engaged with the water inlet section, the connecting section, and the scale accumulation section. The water inlet isolation part has a through hole that corresponds to the water inlet. The isolation sleeve is provided with a clearance notch for avoiding the heating arc edge.

[0020] By adopting the above technical solution, scale in the water space will accumulate in the isolation sleeve. When there is too much scale in the middle shell, it is easier to remove the middle shell and then remove the isolation sleeve to quickly clean the scale and ensure the performance of the steam generator. At the same time, the avoidance notch avoids the heating arc edge, which helps to ensure the steam generation effect of the steam generator while facilitating the cleaning of scale.

[0021] Optionally, the isolation sleeve is provided with a textured surface, and the textured surface is distributed parallel to the thickness direction of the intermediate shell.

[0022] By adopting the above technical solution, the specific design of the textured surface facilitates the restriction of the location of scale during scale deposition while ensuring the stability of water flow, thereby further reducing the blockage of scale at the water inlet or steam outlet.

[0023] Optionally, a positioning protrusion is fixedly connected to the side of the water inlet isolation section and the scale accumulation isolation section that are far apart from each other. The tank walls of the water inlet section and the scale accumulation section are provided with positioning grooves that correspond to and are inserted into the positioning protrusions. The positioning grooves extend to the side of the middle shell facing the lower cover.

[0024] By adopting the above technical solution, the cooperation between the positioning protrusion and the positioning groove plays a further limiting role in the isolation sleeve, which helps to fully ensure the stability of the position of the isolation sleeve.

[0025] Optionally, a limiting stop is fixedly provided on the side of the isolation sleeve facing the lower cover, and an isolation connecting post is fixedly connected to the side of the limiting stop facing the middle shell. The middle shell has an isolation connecting section that corresponds to and engages with the isolation connecting post.

[0026] By adopting the above technical solution, the cooperation between the isolation connecting column and the isolation connecting section makes the connection between the isolation sleeve and the intermediate shell convenient and quick, and facilitates the rapid installation of the isolation sleeve to the required position.

[0027] In summary, this application includes at least one of the following beneficial technical effects:

[0028] 1. The baffle separates the water space and the steam space, thus preventing scale generated during heating in the water space from directly entering the steam space and clogging the steam outlet, which helps to ensure the steam discharge rate of the steam outlet.

[0029] 2. When the steam generated by heating the water in the water space enters the steam space, it has a longer flow path due to the obstruction of the guide strips and baffles, which makes it easier for more scale to be retained and deposited in the water space.

[0030] 3. When the water in the water space is heated and turns into steam, it enters the steam space and first enters the steam discharge trough before being discharged through the steam outlet. The baffles in the steam discharge trough further block the scale in the steam, making it difficult for the scale in the steam to enter the steam outlet and cause blockage. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of this application.

[0032] Figure 2 This is an exploded view of the intermediate shell and lower cover in Embodiment 1 of this application.

[0033] Figure 3 This is an exploded schematic diagram of the intermediate shell, top cover, and heating tube in Embodiment 1 of this application.

[0034] Figure 4This is a schematic diagram of the intermediate shell structure in Embodiment 2 of this application.

[0035] Figure 5 Figure 4 A magnified view of part A in the diagram.

[0036] Explanation of reference numerals in the attached figures:

[0037] 01. Device body; 02. Water inlet tank; 1. Top cover; 2. Intermediate shell; 3. Bottom cover; 4. Water inlet; 5. Steam inlet; 6. Water space; 7. Steam space; 8. Temperature control boss; 9. Heating tube; 10. Water inlet section; 11. Scale accumulation section; 12. Connecting section; 13. Baffle; 14. Steam guide port; 15. Guide strip; 16. Steam exhaust trough; 17. Baffle column; 18. Upper chamber; 181. Water chamber; 182. Steam chamber; 19. Upper pressure strip; 20. Upper guide port; 21. Upper sealing part; 22. Upper sealing groove; 23. Upper sealing ring; 24. Annular sealing groove; 25. Annular sealing ring; 26. Annular seal 27. Connecting groove; 28. Insulation groove; 29. ​​First side; 30. Second side; 31. Heating arc edge; 32. Mounting hole; 33. Thermostat; 34. Pressure plate; 341. U-shaped body; 342. Connecting piece; 35. Screw; 36. Round tube; 37. Temperature fuse; 38. Positive power supply; 39. Negative power supply; 40. Isolation sleeve; 401. Water inlet isolation part; 402. Connecting isolation part; 403. Stacking isolation part; 41. Clearance hole; 42. Clearance notch; 43. Limiting stop edge; 44. Isolation connecting post; 45. Isolation connecting section; 46. Positioning protrusion; 47. Positioning groove; 48. Embossed texture. Detailed Implementation

[0038] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0039] Example 1.

[0040] This application discloses a steam generating apparatus. (Refer to...) Figure 1 and Figure 2 The steam generating device includes a device body 01, which includes an upper cover 1, an intermediate shell 2, and a lower cover 3. The upper cover 1, the intermediate shell 2, and the lower cover 3 are all roughly rectangular. The upper cover 1 and the lower cover 3 are located on both sides of the thickness direction of the intermediate shell 2. The upper cover 1, the intermediate shell 2, and the lower cover 3 are fixed by eight bolts that are arranged in a rectangular shape.

[0041] Reference Figure 2 and Figure 3The intermediate shell 2 has a water inlet 4 and a steam outlet 5 at its two ends along its length. On the side of the intermediate shell 2 facing the upper cover 1, there are a water space 6 and a steam space 7, respectively connected to the water inlet 4 and the steam outlet 5. A temperature control boss 8 is integrally fixedly connected to the side of the intermediate shell 2 facing the upper cover 1. The temperature control boss 8 is located near the water space 6 and close to the side of the intermediate shell 2 along its length. A heating pipe 9 is provided at the end of the intermediate shell 2 where the steam outlet 5 is located. The heating pipe 9 is U-shaped, with the U-shaped portion inside the intermediate shell 2. The U-shaped portion of the heating pipe 9 is located near the bottom of the temperature control boss 8, so that the heating pipe 9 can transfer heat to the temperature control boss 8 during heating, thereby controlling the evaporation of the water through the temperature control boss 8.

[0042] Reference Figure 2 The intermediate shell 2 is provided with a water inlet trough 02, which includes a water inlet section 10, a scale accumulation section 11, and a connecting section 12. The water inlet section 10 and the scale accumulation section 11 are arranged through the intermediate shell 2 along its thickness direction. Both the water inlet section 10 and the scale accumulation section 11 are located in the water space 6 and are respectively positioned near the two corners of the bottom of the intermediate shell 2. A temperature control boss 8 is located between the water inlet section 10 and the scale accumulation section 11. The water inlet 4 is eccentrically positioned, specifically located on one side of the water inlet section 10 and communicating with it. The connecting section 12 communicates with both the water inlet section 10 and the scale accumulation section 11. In this embodiment, the connecting section 12 extends to the side of the intermediate shell 2 facing the lower cover 3, facilitating the cleaning of the water inlet section 10 and increasing the contact area between the water flow in the water space 6 and the heating part of the heating tube 9. This improves the steam generation efficiency and prevents the heating tube 9 from dry-burning, thus ensuring its service life.

[0043] Continue to refer to Figure 2 A baffle 13 extending along its width is fixedly connected to the side of the intermediate shell 2 facing the upper cover 1. The baffle 13 separates the water space 6 and the steam space 7, so that the scale generated in the water space 6 during heating is not easily allowed to directly enter the steam space 7 and block the steam port 5. The baffle 13 has a steam guide port 14 that connects the water space 6 and the steam space 7. The steam guide port 14 is located on the same side as the scale accumulation section 11. A guide strip 15 is fixedly connected to the side of the intermediate shell 2 facing the shell. In this embodiment, there are two guide strips 15, both of which are arc-shaped. Both guide strips 15 are located in the water space 6 and are inclined in a V-shape towards the middle of the baffle 13, so that the steam generated by heating the water in the water space 6 has a longer flow path when entering the steam space 7, which facilitates more scale deposition and retention in the water space 6.

[0044] Continue to refer to Figure 2The middle shell 2 has a steam discharge groove 16 recessed on the side facing the upper cover 1. The steam discharge groove 16 is located in the steam space 7. The steam port 5 is connected to the steam discharge groove 16 and is set near the bottom wall of the steam discharge groove 16. Multiple baffles 17 are integrally fixedly connected to the bottom wall of the steam discharge groove 16. When steam enters the steam space 7, it first enters the steam discharge groove 16 and then is discharged through the steam port 5. Each baffle 17 in the steam discharge groove 16 plays a further blocking role against scale in the steam, so that the scale contained in the steam is not easy to enter the steam port 5 and cause blockage of the steam port 5.

[0045] Reference Figure 2 and Figure 3 The upper cover 1 has an upper chamber 18 recessed on the side facing the middle shell 2. An upper pressure strip 19 corresponding to the position of the baffle 13 is fixedly installed on the side of the upper cover 1 facing the middle shell 2. The upper pressure strip 19 divides the upper chamber 18 into a water chamber 181 and a steam chamber 182. The upper pressure strip 19 has an upper guide port 20 corresponding to the position of the steam guide port 14. The upper guide port 20 communicates with the water chamber 181 and the steam chamber 182. When the upper cover 1 and the middle shell 2 are connected, the baffle 13 and the baffle 13 pressure strip press against each other. The water chamber 181 and the steam chamber 182 communicate with the water space 6 and the steam space 7, respectively. The steam generated in the water space 6 enters the steam space 7 through the steam guide port 14 and the upper guide port 20.

[0046] Continue to refer to Figure 2 and Figure 3 To ensure a tight seal between the intermediate housing 2 and the upper cover 1, an upper sealing part 21 is provided on the side of the intermediate housing 2 facing the upper cover 1. The upper sealing part 21 is closed at both ends in a ring shape and is arranged around the edge of the temperature control boss 8, so that the temperature control boss 8 is located outside the area enclosed by the first sealing part. An upper sealing groove 22 is provided on the side of the upper cover 1 facing the intermediate housing 2, which corresponds to and is inserted into the upper sealing part 21. An upper sealing ring 23 is embedded in the upper sealing groove 22. When the intermediate housing 2 is connected to the upper cover 1, the upper sealing part 21 is inserted into the upper sealing groove 22 and abuts against the upper sealing ring 23.

[0047] Continue to refer to Figure 2 and Figure 3 To ensure the airtightness between the intermediate housing 2 and the lower cover 3, an annular sealing groove 24 with closed ends is provided on the side of the intermediate housing 2 facing the lower cover 3. The connecting section 12 is located in the area enclosed by the annular sealing groove 24. An annular sealing ring 25 is embedded in the annular sealing groove 24. An annular sealing part 26 corresponding to and engaging with the annular sealing groove 24 is fixedly connected to the side of the lower cover 3 facing the intermediate housing 2. When the intermediate housing 2 and the lower cover 3 are connected, the annular sealing part 26 is inserted into the annular sealing groove 24 and abuts against the annular sealing ring 25.

[0048] Continue to refer to Figure 2 and Figure 3 The lower cover 3 has a connecting groove 27 and a heat insulation groove 28 on the side facing the intermediate shell 2. The connecting groove 27 corresponds to the connecting section 12 and is located within the area enclosed by the annular sealing part 26. The heat insulation groove 28 is located outside the area enclosed by the annular sealing part 26. When the intermediate shell 2 is connected to the lower cover 3, the connecting groove 27 is connected to the connecting section 12, which helps to further increase the water volume in the water space 6 and ensure steam generation efficiency. Furthermore, the heat insulation groove 28 reduces heat transfer, which helps to avoid damage to other components due to excessive temperature of the lower cover 3.

[0049] Reference Figure 2 In this embodiment, the water inlet section 10 and the scale accumulation section 11 are symmetrically arranged along the centerline of the width direction of the intermediate shell 2. Specifically, both the water inlet section 10 and the scale accumulation section 11 include a first side 29, a second side 30, and a heating arc-shaped edge 31. The first side 29 and the second side 30 are perpendicular to each other. The first side 29 is arranged along the length direction of the intermediate shell 2, and the second side 30 is arranged along the width direction of the intermediate shell 2. The connection between the first side 29 and the second side 30 is rounded to form an arc transition. The groove wall of the connecting section 12 is connected to the second side 30 of the water inlet section 10 and the scale accumulation section 11.

[0050] Continue to refer to Figure 2 The two ends of the heating arc edge 31 are connected to the first side edge 29 and the second side edge 30 respectively. The connection between the two ends of the heating arc edge 31 and the first side edge 29 and the second side edge 30 is also rounded to form an arc transition. The edges of the heating arc edge 31 facing the upper cover 1 and the lower cover 3 are rounded to achieve stable guidance of water flow and steam in the water space 6. The heating arc edge 31 is close to the U-shaped part of the heating pipe 9 so that the heating arc edge 31 is used to heat the water flow in the water space 6.

[0051] Reference Figure 1 and Figure 3 The top cover 1 has a mounting hole 32 on the side away from the middle shell 2, which corresponds to and passes through the temperature control boss 8. The temperature controller 33 is installed in the mounting hole 32. The temperature control boss 8 is located at the bottom of the temperature controller 33. A pressure plate 34 is provided on the top of the temperature controller 33. The pressure plate 34 includes a U-shaped body 341 and connecting pieces 342 fixedly installed on both sides of the U-shaped body 341. The U-shaped body 341 is mounted on the temperature controller 33. Both connecting pieces 342 are fixed to the end face of the top cover 1 by screws 35, thereby realizing the fixation between the temperature controller 33 and the top cover 1.

[0052] Reference Figure 1A circular tube 36 is fixedly installed on the side of the top cover 1 away from the middle shell 2. A temperature fuse 37 is installed inside the circular tube 36. In this embodiment, the circular tube 36 is selected as a Teflon tube. One end of the heating tube 9 is connected to the positive terminal 38 of the power supply and the other end is connected to the negative terminal 39 of the power supply for connecting to the power supply to heat the water. The temperature fuse 37 is installed at the positive terminal 38 of the power supply to protect the circuit.

[0053] The implementation principle of a steam generator according to an embodiment of this application is as follows: When water flows into the water inlet section 10 through the water inlet 4, the water in the water space 6 also flows into the scale accumulation section 11 through the connecting section 12. This increases the contact area between the heating part of the heating tube 9 and the water in the water space 6, which is beneficial to improving the steam generation efficiency. At the same time, it makes the heating tube 9 less prone to dry burning, which is beneficial to ensuring the service life of the heating tube 9. In addition, the baffle 13 separates the water space 6 and the steam space 7, which makes it difficult for the scale generated in the water space 6 to directly enter the steam space 7 and block the steam port 5. This is beneficial to ensuring the steam discharge of the steam port 5. Furthermore, when there is too much scale buildup in the intermediate shell 2, the intermediate shell 2 can be removed, making it easier to clean the water inlet section 10 and the scale accumulation section 11 that are connected through it.

[0054] Example 2.

[0055] Reference Figure 4 and Figure 5 The main difference between this embodiment and Embodiment 1 is that this embodiment also includes an isolation sleeve 40. The isolation sleeve 40 is located on the side of the intermediate housing 2 facing the lower cover 3. Specifically, the isolation sleeve 40 includes an integrally fixed water inlet isolation part 401, a connecting isolation part 402, and a scale accumulation isolation part 403. The water inlet isolation part 401, the connecting isolation part 402, and the scale accumulation isolation part 403 are respectively engaged with the water inlet section 10, the connecting section 12, and the scale accumulation section 11. The water inlet isolation part 401 has a through hole 41 that corresponds to the water inlet 4. When the water inlet isolation part 401 is inserted into the water inlet section 10, the clearance hole 41 corresponds to the water inlet 4 so that water can flow into the water inlet section 10.

[0056] Reference Figure 5Both the water inlet isolation section 401 and the scale accumulation isolation section 403 are provided with clearance notches 42, which correspond to the positions of the heating arc edge 31 to facilitate clearance of the heating arc edge 31 and ensure steam generation efficiency. The isolation sleeve 40 is fixedly connected to the side facing the lower cover 3 with a limiting stop 43. When the limiting stop 43 abuts against the side of the isolation shell facing the lower cover 3, the water inlet isolation section 401, the connecting isolation section 402, and the scale accumulation isolation section 403 are stably inserted into the water inlet section 10, the connecting section 12, and the scale accumulation section 11, respectively. The sides of the water inlet isolation section 401 and the scale accumulation isolation section 403 are respectively attached to the first side 29 and the second side 30 of the water inlet section 10 and the scale accumulation section 11.

[0057] Continue to refer to Figure 5 Two isolation connecting posts 44 are fixedly connected to the side of the limiting stop 43 facing the middle shell 2. The side of the middle shell 2 facing the lower cover 3 is provided with isolation connecting sections 45 that correspond to the two isolation connecting posts 44 and are respectively engaged with the two isolation connecting posts 44, so as to further facilitate the quick installation of the isolation sleeve 40 to the required designated position.

[0058] Reference Figure 4 and Figure 5 To further ensure the stability of the isolation sleeve 40 after installation, positioning protrusions 46 are fixedly connected to the side of the water inlet isolation section 401 and the scale accumulation isolation section 403 that are far apart. In this embodiment, there are two positioning protrusions 46 on each side along the length of the isolation shell. The groove walls of the water inlet section 10 and the scale accumulation section 11 are provided with positioning grooves 47 that correspond to and are inserted into the positioning protrusions 46. The positioning grooves 47 extend to the side of the middle shell 2 facing the lower cover 3, so as to further limit the position of the isolation sleeve 40 through the cooperation of the positioning protrusions 46 and the positioning grooves 47.

[0059] Continue to refer to Figure 4 and Figure 5 The water inlet isolation section 401, the connecting isolation section 402, and the scale accumulation isolation section 403 are respectively provided with concave and convex textures 48 on the inner side of the water inlet section 10, the connecting section 12, and the scale accumulation section 11. Multiple concave and convex textures 48 are distributed parallel to the thickness direction of the intermediate shell 2, so as to limit the position of scale when scale is deposited and accumulated while ensuring the stability of water flow, and further reduce the blockage of scale at the water inlet 4 or the steam outlet 5.

[0060] The main purpose of this application embodiment is to prevent scale generated during heating in the water space 6 from directly entering the steam space 7 and causing blockage of the steam port 5. Furthermore, by setting up the isolation sleeve 40, scale is concentrated in the water inlet section 10, the connecting section 12, and the scale accumulation section 11. Thus, when there is too much scale in the intermediate shell 2, the intermediate shell 2 can be removed and then the isolation sleeve 40 can be removed to quickly clean the scale and ensure the performance of the steam generator.

[0061] 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 generating device, comprising a device body (01), wherein a water inlet (4) and a steam outlet (5) are respectively provided at both ends of the device body, and the device body is provided with a water space (6) and a steam space (7) respectively communicating with the water inlet (4) and the steam outlet (5), characterized in that: The device body (01) is provided with a heating pipe (9) for heating the water flow in the water space (6). The device body (01) has a water inlet trough (02). The water inlet trough (02) is located in the water space (6) and is connected to the water inlet (4). The water inlet trough (02) is located at the free end of the water space (6) away from the steam space (7), and the two side walls of the water inlet trough (02) are close to the two sides of the width direction of the device body (01).

2. The steam generating device according to claim 1, characterized in that: The device body (01) includes an upper cover (1), a middle shell (2), and a lower cover (3). The upper cover (1) and the lower cover (3) are located on both sides of the middle shell (2). The middle shell (2) is fixedly connected to a baffle (13) that separates the water space (6) and the steam space (7). The baffle (13) has a steam guide port (14) that connects the water space (6) and the steam space (7). The water inlet tank (02) includes a water inlet section (10) and a scale accumulation section. (11) and connecting section (12), the water inlet section (10) and the scale accumulation section (11) are both opened in the intermediate shell (2) and are arranged through the thickness direction of the intermediate shell (2). The water inlet section (10) and the scale accumulation section (11) are respectively close to the two corners of the intermediate shell (2). The water inlet (4) is connected to the water inlet section (10). The connecting section (12) is located on the side of the intermediate shell (2) facing the lower cover (3) and is connected to the water inlet section (10) and the scale accumulation section (11).

3. A steam generating device according to claim 2, characterized in that: The steam guide port (14) and the scale accumulation section (11) are located on the same side. The intermediate shell (2) is fixedly connected with a guide strip (15). The guide strip (15) is located in the water space (6) and is inclined towards the baffle (13). The intermediate shell (2) has a steam discharge groove (16) recessed on the side facing the upper cover (1). The steam discharge groove (16) is located in the steam space (7). The steam port (5) is connected to the steam discharge groove (16) and is located close to the bottom wall of the steam discharge groove (16). The bottom wall of the steam discharge groove (16) is fixedly provided with multiple baffles (17).

4. A steam generating device according to claim 2, characterized in that: The intermediate housing (2) has an annular sealing groove (24) on the side facing the lower cover (3). The connecting section (12) is located in the area enclosed by the annular sealing groove (24). The lower cover (3) is fixedly connected to the side facing the intermediate housing (2) with an annular sealing part (26) corresponding to and engaging with the annular sealing groove (24). An annular sealing ring (25) is provided between the annular sealing part (26) and the annular sealing groove (24).

5. A steam generating device according to claim 4, characterized in that: The lower cover (3) has a connecting groove (27) and a heat insulation groove (28) on the side facing the middle shell (2). The connecting groove (27) corresponds to the connecting section (12) and is located within the area enclosed by the annular sealing part (26). The heat insulation groove (28) is located outside the area enclosed by the annular sealing part (26).

6. A steam generating device according to claim 2, characterized in that: The water inlet section (10) and the scale accumulation section (11) are symmetrically arranged. Both the water inlet section (10) and the scale accumulation section (11) include a first side (29), a second side (30) and a heating arc edge (31). The first side (29) is perpendicular to the second side (30). The first side (29) and the second side (30) are arranged in an arc transition. The two ends of the heating arc edge (31) are connected to the first side (29) and the second side (30) respectively and are arranged in an arc transition with the first side (29) and the second side (30). The heating arc edge (31) is used to heat the water flow in the water space (6).

7. A steam generating device according to claim 6, characterized in that: The intermediate shell (2) is provided with an isolation sleeve (40) on the side facing the lower cover (3). The isolation sleeve (40) includes an integrally fixed water inlet isolation part (401), a connecting isolation part (402), and a scale accumulation isolation part (403). The water inlet isolation part (401), the connecting isolation part (402), and the scale accumulation isolation part (403) are respectively engaged with the water inlet section (10), the connecting section (12), and the scale accumulation section (11). The water inlet isolation part (401) has a through hole (41) that corresponds to the water inlet (4). The isolation sleeve (40) has a clearance notch (42) for avoiding the heating arc edge (31).

8. A steam generating device according to claim 7, characterized in that: The isolation sleeve (40) is provided with a textured surface (48), which is distributed parallel to the thickness direction of the intermediate shell (2).

9. A steam generating device according to claim 7, characterized in that: The water inlet isolation section (401) and the scale accumulation isolation section (403) are fixedly connected to the side away from each other. The groove walls of the water inlet section (10) and the scale accumulation section (11) are provided with positioning grooves (47) that correspond to and are inserted into the positioning grooves (46). The positioning grooves (47) extend to the side of the intermediate shell (2) facing the lower cover (3).

10. A steam generating apparatus according to claim 7, characterized in that: The isolation sleeve (40) is fixedly provided with a limiting stop (43) on the side facing the lower cover (3), and the limiting stop (43) is fixedly connected with an isolation connecting post (44) on the side facing the middle shell (2). The middle shell (2) is provided with an isolation connecting section (45) that corresponds to and engages with the isolation connecting post (44).

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