Steam generator
By setting up a spiral diversion groove on the outside of the electric heating tube to form a heating water channel, the problem of low heating efficiency of existing steam generators is solved, and a more efficient water heating effect is achieved, reducing costs and maintaining the aesthetics of the product.
Patent Information
- Application Number
- CN202420394017.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-29
- Publication Date
- 2025-02-07
- Estimated Expiration
- 2034-02-28
AI Technical Summary
When heating water, existing steam generators have low thermal efficiency due to the rapid water flow rate, and it is necessary to increase the power of the heating pipe or extend the length of the water pipe to improve the heating effect, but this increases the equipment materials and usage costs.
The flow-draining groove is arranged on the outside of the electric heating tube, and the flow-draining grooves are distributed in a spiral shape to form a heating water channel, which reduces the speed when the water flows through, thereby improving the heating efficiency of the electric heating tube to water.
By reducing the water flow rate, the steam generator's heating efficiency for water is improved, the need to increase the power of the electric heating pipe and the length of the water pipe is avoided, and the material and usage cost is reduced, while maintaining the flatness of the outer surface of the water pipe and the aesthetics of the product.
Smart Images
Figure CN222437888U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electric heating devices, in particular to a steam generator. Background Art
[0002] A steam generator is a device that heats water to boiling to produce steam and is often used in cooking, disinfection and other fields.
[0003] Steam generators are generally heated by electric heating devices, which usually include heating tubes and water pipes. Normally, water flows in a straight line between the water pipes and the heating tubes. The water flows relatively fast in this heating method, resulting in low thermal efficiency. It is usually necessary to increase the power of the heating tube or extend the length of the water pipe to achieve better heating effects, but this increases the equipment material cost and the cost of use.
[0004] Therefore, further improvements are needed. Utility Model Content
[0005] The purpose of the utility model is to overcome the deficiencies of the above-mentioned prior art and to provide a steam generator, which improves the heating efficiency of water without additionally increasing the power of the electric heating tube and the length of the water tube.
[0006] The purpose of the utility model is achieved in this way:
[0007] A steam generator comprises an electric heating tube and a water pipe sleeved on the outer side of the electric heating tube. The outer side of the electric heating tube is provided with a guide groove, which is spirally distributed on the outer side wall of the electric heating tube. A heating water channel for water flow to pass through is formed between the guide groove and the water pipe.
[0008] As a specific solution, the electric heating tube is provided with inner connecting surfaces at both ends, and the water pipe is provided with outer connecting surfaces corresponding to the inner connecting surfaces at both ends, and the inner connecting surfaces are matched with the outer connecting surfaces in a liquid-tight manner.
[0009] As a specific solution, a convex rib is formed on the electric heating tube at a position corresponding to the heating water channel, and the convex rib is distributed on the outer wall of the electric heating tube in a spiral shape corresponding to the guide groove, and the convex rib is liquid-tightly matched with the inner side of the water pipe.
[0010] As a specific solution, the water pipe is provided with a water inlet and a water outlet, and the water inlet and the water outlet are respectively connected to the head and tail ends of the heating water channel.
[0011] As a specific solution, the water inlet and / or the water outlet is connected with a joint part, the head end of the joint part is connected and fixed to the water inlet or the water outlet, and the tail end thereof is extended outward.
[0012] As a specific solution, a connecting flange is provided at the head end of the joint portion, and the connecting flange is liquid-tightly matched with the inner side of the water inlet or the water outlet.
[0013] As a specific solution, bosses are provided on the water pipe at positions corresponding to the water inlet and the water outlet, the bosses protrude outward, and the joint portion abuts against the bosses.
[0014] The beneficial effects of the utility model are:
[0015] By setting guide grooves on the surface of the electric heating tube, the speed of the liquid can be reduced when passing through the heating water channel, thereby improving the heating efficiency of the electric heating tube for water. There is no need to increase the power of the electric heating tube and the length of the water pipe, thereby avoiding additional increases in the material cost and use cost of the product. At the same time, the outer surface of the water pipe can be kept smooth, and the overall product can be made more beautiful. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a cross-sectional schematic diagram of an embodiment of the utility model.
[0017] Figure 2 It is a schematic diagram of an exploded view of an embodiment of the utility model.
[0018] Figure 3 It is a schematic structural diagram of an embodiment of the utility model.
[0019] Figure 4 It is an enlarged view of A of the embodiment of the present invention. DETAILED DESCRIPTION
[0020] The utility model is further described below in conjunction with the accompanying drawings and embodiments.
[0021] See also Figure 1-Figure 4 The steam generator comprises an electric heating tube 1 and a water pipe 2 sheathed on the outer side of the electric heating tube 1, a guide groove 11 is provided on the outer side of the electric heating tube 1, the guide groove 11 is spirally distributed on the outer side wall of the electric heating tube 1, and a heating water channel for water flow to pass through is formed between the guide groove 11 and the water pipe 2. The steam generator comprises an electric heating tube 1 and a water pipe 2 sheathed on the outer side of the electric heating tube 1, a guide groove 11 is provided on the outer side of the electric heating tube 1, the guide groove 11 is spirally distributed on the outer side wall of the electric heating tube 1, and a heating water channel for water flow to pass through is formed between the guide groove 11 and the water pipe 2.
[0022] Furthermore, the electric heating tube 1 is provided with inner connecting surfaces 12 at both ends, and the water pipe 2 is provided with outer connecting surfaces 21 corresponding to the inner connecting surfaces 12 at both ends. The inner connecting surface 12 and the outer connecting surface 21 are liquid-tightly matched, thereby improving the connection strength between the electric heating tube 1 and the water pipe 2.
[0023] Furthermore, a convex rib 13 is formed on the electric heating tube 1 at a position corresponding to the heating water channel. The convex rib 13 is distributed on the outer wall of the electric heating tube 1 in a spiral shape corresponding to the guide groove 11. The convex rib 13 is liquid-tightly matched with the inner side of the water pipe 2 to further improve the connection strength between the electric heating tube 1 and the water pipe 2, and at the same time, avoid part of the liquid from not passing through the heating water channel to affect the heating efficiency.
[0024] Furthermore, a water inlet 22 and a water outlet 23 are provided on the water pipe 2, and the water inlet 22 and the water outlet 23 are respectively connected to the head and tail ends of the heating water channel, and the water flow can completely pass through the heating water channel through the water inlet 22 and the water outlet 23.
[0025] Furthermore, the water inlet 22 and / or the water outlet 23 are connected to a joint part 3, the head end of the joint part 3 is connected and fixed to the water inlet 22 or the water outlet 23, and the tail end thereof is extended outward. The joint part 3 can make it easier for the external water pipe 2 to be installed and connected to the water inlet 22 or the water outlet 23. In the present embodiment, the water inlet 22 and the water outlet 23 are both connected to corresponding joint parts 3.
[0026] Furthermore, a connecting flange 31 is provided at the head end of the joint part 3 , and the connecting flange 31 is liquid-tightly matched with the inner side of the water inlet 22 or the water outlet 23 , thereby improving the connection strength between the joint part 3 and the water inlet 22 or the water outlet 23 .
[0027] Furthermore, a boss portion 24 is provided on the water pipe 2 at positions corresponding to the water inlet 22 and the water outlet 23. The boss portion 24 protrudes outward, and the joint portion 3 abuts against the boss portion 24. The boss portion 24 can improve the structural strength of the water pipe 2 and the connection strength with the joint portion 3.
[0028] The above embodiments are only preferred embodiments of the present invention, and the present invention may have other embodiments. Those skilled in the art may make equivalent modifications or substitutions without violating the spirit of the present invention, and these equivalent modifications or substitutions are all within the scope set by the claims of this application.
Claims
1. A steam generator, comprising an electric heating tube (1) and a water tube (2) sleeved outside the electric heating tube (1), characterized in that: A flow guide groove (11) is provided on the outer side of the electric heating tube (1), and the flow guide groove (11) is distributed in a spiral shape on the outer side wall of the electric heating tube (1), and a heating water channel for water flow to pass through is formed between the flow guide groove (11) and the water tube (2).
2. The steam generator according to claim 1, characterized in that: The electric heating tube (1) is provided with inner connecting surfaces (12) at both ends, and the water tube (2) is provided with outer connecting surfaces (21) corresponding to the inner connecting surfaces (12) at both ends, and the inner connecting surfaces (12) and the outer connecting surfaces (21) are matched in a liquid-tight manner.
3. The steam generator according to claim 1, characterized in that: A convex rib (13) is formed on the electric heating tube (1) at a position corresponding to the heating water channel, and the convex rib (13) is distributed on the outer wall of the electric heating tube (1) in a spiral shape corresponding to the guide groove (11), and the convex rib (13) is in liquid-tight cooperation with the inner side of the water tube (2).
4. The steam generator according to claim 1, characterized in that: The water pipe (2) is provided with a water inlet (22) and a water outlet (23), and the water inlet (22) and the water outlet (23) are respectively connected to the head and tail ends of the heating water channel.
5. The steam generator according to claim 4, characterized in that: The water inlet (22) and / or the water outlet (23) are connected to a joint part (3); the head end of the joint part (3) is connected and fixed to the water inlet (22) or the water outlet (23), and the tail end thereof is arranged to extend outwards.
6. The steam generator according to claim 5, characterized in that: The head end of the joint portion (3) is provided with a connecting flange (31), and the connecting flange (31) is in liquid-tight cooperation with the inner side of the water inlet (22) or the water outlet (23).
7. The steam generator according to claim 5, characterized in that: A boss portion (24) is provided on the water pipe (2) at positions corresponding to the water inlet (22) and the water outlet (23); the boss portion (24) protrudes toward the outside, and the joint portion (3) abuts against the boss portion (24).