Dry steam generator with backflow function
By introducing structures such as flow guide channels, return pipes, and liquid level sensors into the dry steam generator, the problems of scaling on the heating element and difficulty in water discharge are solved, realizing automatic water return and ensuring normal operation and convenient maintenance of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU WEIQIAKONG INTELLIGENT EQUIPMENT CO LTD
- Filing Date
- 2025-08-25
- Publication Date
- 2026-07-21
AI Technical Summary
Existing dry steam generators are prone to scaling on the heating element during use, which reduces heating efficiency, causes steam to be discharged from the outlet, affects normal operation of the equipment, and makes it difficult to drain internal water.
The design incorporates a flow guide channel, a return pipe, a solenoid valve, and a liquid level sensor. The liquid level sensor detects the water level inside the steam generator, and the solenoid valve is used to open the return pipe to return the water to the storage tank, preventing water from being discharged from the steam outlet. The water is also returned to the storage tank when the equipment is not in use.
It effectively prevents water from being discharged from the steam outlet, maintains dry steam generation, reduces water accumulation inside the equipment, and facilitates the normal use and maintenance of the steam generator.
Smart Images
Figure CN224534246U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of dry steam generator technology, specifically a dry steam generator with reflux function. Background Technology
[0002] A dry steam generator is a device that uses electrical energy or the thermal energy of other fuels to turn water into dry steam. It has advantages such as fast dry steam production and convenient use. For example, the invention patent with publication number CN111006193A discloses a low-power fast dry steam generator, which includes a water inlet assembly, a tubular heating element assembly, and a steam outlet assembly connected in sequence. The water inlet assembly is equipped with a water suction pipe and a blower that can blow air into the tubular heating element assembly. Utilizing the Bernoulli effect, the airflow blown by the blower draws water from the upper end of the water suction pipe in the bottle and forms water droplets which are then sprayed into the tubular heating element assembly. The water inlet assembly of this invention is equipped with a water suction pipe that can extend into the bottle body. The water inlet assembly is also equipped with a blower. Utilizing the Bernoulli effect, the airflow blown by the blower draws water from the upper end of the water suction pipe into the bottle body and forms water droplets which are then sprayed into the tubular heating element assembly. The tubular heating element assembly heats the water droplets into steam and evaporates them for discharge. By controlling the airflow, a micro-supply of water can be achieved, with an inflow rate of less than 0.5 g / s, enabling rapid dry steam output with low power consumption.
[0003] However, if the heating element of an existing dry steam generator cannot heat water into steam in time during use, for example, if scale forms on the heating element during use, the heating efficiency will be reduced, and water will be discharged through the steam outlet, affecting the normal use of the equipment. Moreover, it is inconvenient to drain the water remaining inside the heating element assembly. Utility Model Content
[0004] The purpose of this invention is to provide a dry steam generator with a reflux function to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A dry steam generator with a reflux function includes a water storage tank. Two support frames are fixedly installed on the upper end of the water storage tank. A steam generator pipe is placed on the upper end of the two support frames. One end of the steam generator pipe is provided with a water inlet. A liquid supply pipe is sealed and connected to the water inlet. One end of the liquid supply pipe is connected to the interior of the water storage tank through a water supply pump. A heating chamber is opened inside the steam generator pipe. A heating element is fixedly installed inside the heating chamber. A guide groove is opened at the bottom end of the heating chamber. A drain port is opened at one end of the guide groove, and a reflux pipe is sealed and connected to the drain port. One end of the reflux pipe is connected to the interior of the water storage tank. Clamping components are provided at both ends of the steam generator pipe.
[0007] In a preferred embodiment, a steam outlet is provided at the end of the steam generating pipe away from the water inlet. A temperature detection probe is embedded inside the steam outlet. The steam outlet facilitates the discharge of dry steam to the place where it is needed. The temperature detection probe can monitor the temperature at the steam outlet to prevent low temperatures from affecting the generation of dry steam.
[0008] In a preferred embodiment, the guide channel is inclined, and the drain outlet is located at the inclined end of the guide channel. A solenoid valve is provided at the end of the return pipe near the drain outlet. The inclined guide channel facilitates the restriction of water flow direction.
[0009] In a preferred embodiment, a liquid level sensor is fixedly installed on the outer wall of the steam generating pipe. The detection probe of the liquid level sensor is located on the side wall of the guide channel near the steam outlet. The liquid level sensor is used to monitor the liquid level at the upper end of the guide channel. If the liquid level sensor detects that there is a lot of water at the end of the guide channel near the steam outlet, the water is easily discharged from the steam outlet. At this time, the water inside the steam generating pipe can be returned to the water storage tank by using the return pipe.
[0010] In a preferred embodiment, a control panel is fixedly installed at the outer end of the water storage tank, and the control panel is electrically connected to a liquid level sensor, a solenoid valve, a water pump, and a heating element.
[0011] In a preferred embodiment, the bottom ends of both clamping members are fixedly mounted on nuts, and the two nuts are threaded onto two threaded rods respectively. One end of each threaded rod is fixedly mounted on the same rotating disk. The upper end of the support frame is arc-shaped. One end of each clamping member is fixedly mounted with a guide rod. The end of the guide rod away from the clamping member is slidably mounted in a guide hole opened on the support frame. The external threads on the two threaded rods are in opposite directions. A protruding structure for easy rotation is fixedly mounted on the outer wall of the rotating disk. A limit ring is provided at the connection between the threaded rod and the support frame. An annular groove is opened at the connection between the support frame and the threaded rod. The rotation of the rotating disk causes the two threaded rods to rotate. When the two threaded rods rotate, the two clamping blocks move closer or further apart, which can clamp and limit the steam generating pipeline. The threaded rods are rotatably connected to the support frame, and the guide rods can limit the nuts, preventing the nuts from rotating with the threaded rods.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0013] 1. This utility model is equipped with a flow guide channel, a return pipe, a solenoid valve, a liquid level sensor, etc. If the liquid level sensor near the steam outlet detects a lot of water, the water is easily discharged through the steam outlet, affecting the normal use of the dry steam generator. At this time, the water inside the steam generating pipe can be returned to the water storage tank through the return pipe, reducing the water source inside the steam generating pipe. Moreover, when the equipment is not in use, some water will remain inside the steam generating pipe, which can also be returned to the water storage tank through the return pipe.
[0014] 2. This utility model, by providing a structure including clamping components, a rotating disk, a threaded rod, a nut, and a guide rod, allows the steam generating pipe to be placed directly on the support frame. The clamping components are used to clamp and fix both ends of the steam generating pipe, which facilitates the installation and disassembly of the steam generating pipe and thus facilitates its maintenance. Attached Figure Description
[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This utility model Figure 1 Enlarged schematic diagram of the structure at point A in the middle;
[0018] Figure 3 This is a cross-sectional view of the steam generating pipeline of this utility model;
[0019] Figure 4 This is a schematic diagram of the connection between the threaded rod and the support frame of this utility model.
[0020] In the diagram: 1. Water storage tank; 2. Support frame; 3. Steam generating pipe; 4. Water inlet; 5. Liquid supply pipe; 6. Water supply pump; 7. Heating chamber; 8. Heating element; 9. Guide channel; 10. Return pipe; 11. Clamping component; 12. Steam outlet; 13. Control panel; 14. Nut; 15. Threaded rod; 16. Rotary disc; 17. Guide rod; 18. Protruding structure; 19. Liquid level sensor; 20. Solenoid valve; 21. Limiting ring. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] Example 1:
[0023] Please see Figures 1-3 This utility model provides a dry steam generator with reflux function, the technical solution of which is as follows:
[0024] A dry steam generator with a reflux function includes a water storage tank 1. Two support frames 2 are fixedly installed on the upper end of the water storage tank 1. A steam generator pipe 3 is placed on the upper end of the two support frames 2. A water inlet 4 is provided at one end of the steam generator pipe 3. A liquid supply pipe 5 is sealed and connected to the water inlet 4. One end of the liquid supply pipe 5 is connected to the interior of the water storage tank 1 through a water supply pump 6. A heating chamber 7 is opened inside the steam generator pipe 3. A heating element 8 is fixedly installed inside the heating chamber 7. A guide groove 9 is opened at the bottom end of the heating chamber 7. A drain port is opened at one end of the guide groove 9, and a reflux pipe 10 is sealed and connected to the drain port. One end of the reflux pipe 10 is connected to the interior of the water storage tank 1. Clamping members 11 are provided at both ends of the steam generator pipe 3.
[0025] In a preferred embodiment, a steam outlet 12 is provided at the end of the steam generating pipe 3 away from the water inlet 4. A temperature detection probe is embedded inside the steam outlet 12. The steam outlet 12 facilitates the discharge of dry steam to the place where it is needed. The temperature detection probe can monitor the temperature at the steam outlet to prevent low temperature from affecting the generation of dry steam.
[0026] In a preferred embodiment, the guide channel 9 is inclined, and the drain outlet is located at the inclined end of the guide channel 9. A solenoid valve 20 is installed at the end of the return pipe 10 near the drain outlet. A liquid level sensor 19 is fixedly installed on the outer wall of the steam generating pipe 3. The detection probe of the liquid level sensor 19 is located on the side wall of the guide channel 9 near the steam outlet 12. The guide channel 9 is inclined, and its inclined end is located near the water inlet 4. The liquid level sensor 19 is a high-temperature resistant liquid level detector, such as the WH311 type liquid level sensor, which can be used at 300 degrees Celsius. When a large amount of water is detected at the end near the steam outlet 12, the solenoid valve 20 is opened using the control panel 13, so that the water inside the steam generating pipe 3 flows back to the water storage tank 1 through the return pipe 10.
[0027] In a preferred embodiment, a control panel 13 is fixedly installed at the outer end of the water storage tank 1, and the control panel 13 is electrically connected to the liquid level sensor 19, the solenoid valve 11, the water pump 6, and the heating element 8.
[0028] The working principle of this utility model is as follows:
[0029] When in use, open the heating element 8 inside the heating chamber 7. After preheating, turn on the water supply pump 6. The water supply pump 6 delivers water from the water storage tank 1 to the steam generating pipe 3 through the liquid supply pipe 5 and the water inlet 4. The heating element 8 inside the steam generating pipe 3 heats and evaporates the water to form dry steam, which is discharged through the steam outlet 12. The dry steam discharged from the steam outlet 12 is then transported through pipes to steam ovens, steam mops, steam irons, steam cleaners, and other devices. During use, the guide channel 9 contains a small amount of water. When the liquid level sensor 19 detects that there is a lot of water inside the steam generating pipe 3, the steam generator 19 transmits the information to the control panel 13. The control panel 13 controls the solenoid valve 20 to open, and the water inside the steam generating pipe 3 flows back to the water storage tank 1 through the return pipe 10. Moreover, when the equipment is not in use, the water remaining inside the evaporation generating pipe 3 can also flow back to the water storage tank 1 through the return pipe 10.
[0030] Example 2:
[0031] Please see Figures 1-4 The bottom ends of the two clamping members 11 are fixedly mounted on nuts 14. The two nuts 14 are threaded onto two threaded rods 15 respectively. One end of the two threaded rods 15 is fixedly mounted on the same rotating disk 16. The upper end of the support frame 2 is arc-shaped. One end of each of the two clamping members 11 is fixedly mounted with a guide rod 17. The end of the guide rod 17 away from the clamping member 11 is slidably mounted in a guide hole opened on the support frame 2. The external threads on the two threaded rods 15 are in opposite directions. A protruding structure 18 for easy rotation is fixedly mounted on the outer wall of the rotating disk 16. A limit ring 21 is provided at the connection between the threaded rod 15 and the support frame 2. An annular groove is opened at the connection between the support frame 2 and the threaded rod 15.
[0032] Place the steam generating pipe 3 on the arc-shaped structure at the upper end of the support frame 2, and then rotate the rotating disk 16. The rotating disk 16 drives the threaded rods 15 at both ends to rotate. The end of the two threaded rods 15 near the rotating disk 16 can be without external threads, while the side located outside the support frame 2 is provided with external threads, so that the threaded rods 15 are rotatably connected to the support frame 2. The support frame 2 can be used to support the threaded rods 15. When the threaded rods 15 rotate, the nut 14 can drive the clamping parts 11 to move closer to each other, so that the two clamping parts 11 gradually approach the outer wall of the steam generating pipe 3, thereby using the clamping parts 11 to clamp and fix the side walls at both ends of the steam generating pipe 3. When the rotating disk 16 is rotated in the opposite direction, the two clamping parts 11 move away from each other, and the steam generating pipe 3 can be removed from the support frame 2, which is convenient for the maintenance of the steam generating pipe 3.
[0033] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A dry steam generator with reflux function, comprising a water storage tank (1), characterized in that: Two support frames (2) are fixedly installed at the upper end of the water storage tank (1). A steam generating pipe (3) is placed at the upper end of the two support frames (2). A water inlet (4) is provided at one end of the steam generating pipe (3). A liquid supply pipe (5) is sealed and connected to the water inlet (4). One end of the liquid supply pipe (5) is connected to the interior of the water storage tank (1) through a water supply pump (6). A heating chamber (7) is opened inside the steam generating pipe (3). A heating element (8) is fixedly installed inside the heating chamber (7). A guide groove (9) is opened at the bottom end of the heating chamber (7). A drain port is opened at one end of the guide groove (9). A return pipe (10) is sealed and connected to the drain port. One end of the return pipe (10) is connected to the interior of the water storage tank (1). Clamping parts (11) are provided at both ends of the steam generating pipe (3).
2. A dry steam generator with reflux function according to claim 1, characterized in that: The steam generating pipe (3) is provided with a steam outlet (12) at one end away from the water inlet (4), and a temperature detection probe is embedded inside the steam outlet (12).
3. A dry steam generator with reflux function according to claim 2, characterized in that: The guide channel (9) is inclined, and the drain outlet is located at the inclined end of the guide channel (9). The return pipe (10) is equipped with a solenoid valve (20) at the end near the drain outlet.
4. A dry steam generator with reflux function according to claim 3, characterized in that: A liquid level sensor (19) is fixedly installed on the outer wall of the steam generating pipe (3), and the detection probe of the liquid level sensor (19) is set on the side wall of the guide groove (9) near the steam outlet (12).
5. A dry steam generator with reflux function according to claim 4, characterized in that: A control panel (13) is fixedly installed at the outer end of the water storage tank (1). The control panel (13) is electrically connected to the liquid level sensor (19), the solenoid valve (20), the water pump (6), and the heating element (8).
6. A dry steam generator with reflux function according to claim 1, characterized in that: The bottom ends of the two clamping members (11) are fixedly mounted on nuts (14), and the two nuts (14) are respectively threaded onto two threaded rods (15). One end of the two threaded rods (15) is fixedly mounted on the same rotating disk (16).
7. A dry steam generator with reflux function according to claim 6, characterized in that: The upper end of the support frame (2) is arc-shaped, and one end of each of the two clamping members (11) is fixedly provided with a guide rod (17). The end of the guide rod (17) away from the clamping member (11) is slidably provided in the guide hole opened on the support frame (2).
8. A dry steam generator with reflux function according to claim 6, characterized in that: The external threads on the two threaded rods (15) are in opposite directions. A protruding structure (18) for easy rotation is fixedly provided on the outer side wall of the rotating disk (16). A limit ring (21) is provided at the connection between the threaded rod (15) and the support frame (2). An annular groove is provided at the connection between the support frame (2) and the threaded rod (15).