U-shaped nested stainless steel instant heater
By introducing guide springs into the U-shaped heater to form a spiral runner and nesting design, the problems of the existing heater structure is not compact and inefficient, and efficient real-time heating and space savings are achieved.
Patent Information
- Application Number
- CN202421376406.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-17
- Publication Date
- 2025-03-04
- Estimated Expiration
- 2034-06-17
AI Technical Summary
When real-time heating is achieved, the existing heaters are not compact in structure, are inefficient, and it is difficult to ensure sufficient heating of the medium.
The U-shaped nested stainless steel instant heater design is adopted. The spiral flow channel is formed between the U-shaped heating pipe and the U-shaped sleeve through the flow-guiding spring, which increases the effective heating length of the medium and the heating pipe, and improves the compactness of the heater through the nesting design of the U-shaped heating pipe and the U-shaped sleeve.
Efficient instant heating is achieved to ensure that the medium is fully heated, and at the same time, due to the compact structure, the installation space is saved.
Smart Images
Figure CN222560256U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of heating equipment, in particular to a U-shaped nested stainless steel instant heater. Background Art
[0002] At present, the common heater adopts the structure that the electric heater is directly inserted into the medium. This heating method can heat a fixed volume of medium at one time, but its disadvantage is that the acceleration speed is slow and it is difficult to achieve instant heating. Another method is to have a sleeve on the outside of the electric heating tube, and a space is formed between the electric heating tube and the sleeve. When the heating medium passes through this space, it is instantly heated. In this method, in order to ensure that the heating degree of the medium reaches the specified standard, it is necessary to lengthen the length of the electric heating tube and the sleeve, or slow down the speed of the medium passing through the electric heating tube, which will lead to a non-compact structure of the heater and low heating efficiency. Utility Model Content
[0003] In order to overcome the above-mentioned defects of the existing electric heating equipment and realize efficient instant heating, the utility model provides a U-shaped nested stainless steel instant heater.
[0004] The technical solution adopted by the utility model is as follows: a U-shaped nested stainless steel instant heater, comprising: a U-shaped heating tube as a heating component, with wiring terminals at one end or both ends; a U-shaped sleeve, which is sleeved on the outside of the U-shaped heating tube; a guide spring, which is arranged between the U-shaped heating tube and the U-shaped sleeve to form a spiral flow channel; a liquid inlet joint and a liquid outlet joint, which are installed at both ends of the U-shaped sleeve and are connected to the spiral flow channel, and the wiring terminals are exposed from the liquid inlet joint or the liquid outlet joint.
[0005] Preferably, the U-shaped sleeve is made of corrosion-resistant and heat-conductive metal material.
[0006] Preferably, it also includes: a first temperature control device that can be automatically reset, used to measure the temperature of the U-shaped sleeve as a circuit breaker signal of the U-shaped heating tube, and the operating temperature is a first temperature; a second temperature control device that can be manually reset, used to measure the temperature of the U-shaped sleeve as a circuit breaker signal of the U-shaped heating tube, and the operating temperature is a second temperature; the first temperature is an adjustment set value, the second temperature is a fixed value, and the first temperature is less than the second temperature.
[0007] Preferably, it also includes: a U-shaped groove-shaped protective shell, an insulating and heat-insulating material, used to place the U-shaped heating tube, and the first temperature control device and the second temperature control device are installed on the mounting column of the protective shell by screws.
[0008] Preferably, both ends of the protective shell are provided with card slots, the liquid inlet connector and the liquid outlet connector are correspondingly provided with elastic buckles, and the elastic buckles are snap-fitted with the card slots.
[0009] Preferably, it also includes: a grounding plate fixed on the U-shaped sleeve.
[0010] Preferably, it also includes: a temperature sensor installed in the liquid outlet joint for measuring the outlet water temperature.
[0011] Preferably, it also includes: a sealing cover with a hole, installed between the wiring terminal and the liquid inlet joint, and between the wiring terminal and the liquid outlet joint; a first sealing member, arranged between the sealing cover and the liquid inlet joint, and between the sealing cover and the liquid outlet joint; a second sealing member, arranged between the U-shaped sleeve and the liquid inlet joint, and between the U-shaped sleeve.
[0012] Preferably, the U-shaped heating tube, the U-shaped sleeve and the flow guide spring are formed by nesting straight tubes and then bending them.
[0013] The utility model has the following beneficial effects: the utility model forms a spiral flow channel between the U-shaped heating tube and the U-shaped sleeve through the guide spring, which effectively increases the effective heating length of the medium and the U-shaped heating tube, improves the heating efficiency, and ensures that the medium is fully heated; the nested design of the U-shaped heating tube and the U-shaped sleeve makes the heater structure more compact, and saves installation space compared to the traditional external sleeve method. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the appearance of an embodiment of the utility model.
[0015] Figure 2 It is a partial cross-sectional schematic diagram of an embodiment of the utility model.
[0016] Figure 3 It is a schematic diagram of the assembly of the U-shaped heating tube and the flow guide spring in the embodiment of the utility model.
[0017] U-shaped heating tube 1; terminal 2; U-shaped sleeve 3; flow guide spring 4; spiral flow channel 5; liquid inlet joint 6; liquid outlet joint 7; first temperature control device 8; second temperature control device 9; protective shell 10; mounting column 11; grounding plate 12; temperature sensor 13; sealing cover 14; first sealing member 15; second sealing member 16.
[0018] Figure 2 The direction of the arrow indicates the flow direction of the medium. DETAILED DESCRIPTION
[0019] The utility model is further described below in conjunction with the embodiments and drawings.
[0020] In the embodiment, Figures 1 to 3As shown, a U-shaped nested stainless steel instant heater includes: a U-shaped heating tube 1 as a heating component, with a terminal 2 at one or both ends; a U-shaped sleeve 3, which is sleeved on the outside of the U-shaped heating tube 1; a flow guide spring 4, which is arranged between the U-shaped heating tube 1 and the U-shaped sleeve 3 to form a spiral flow channel 5; a liquid inlet joint 6 and a liquid outlet joint 7, which are installed at both ends of the U-shaped sleeve 3 and are connected to the spiral flow channel 5, and the terminal 2 is exposed from the liquid inlet joint 6 or the liquid outlet joint 7. In this embodiment, a spiral flow channel 5 is formed between the U-shaped heating tube 1 and the U-shaped sleeve 3 by the flow guide spring 4, which effectively increases the effective heating length of the medium and the U-shaped heating tube 1, improves the heating efficiency, and ensures that the medium is fully heated; the nested design of the U-shaped heating tube 1 and the U-shaped sleeve 3 makes the heater structure more compact, and saves installation space compared to the traditional external sleeve method.
[0021] In the embodiment, Figures 1 to 3 As shown, the U-shaped sleeve 3 is a corrosion-resistant and heat-conducting metal material. In this embodiment, food-grade stainless steel is specifically selected to make the U-shaped sleeve 3, which has excellent corrosion resistance and can ensure the long-term stable operation of the heater. In addition, stainless steel has good thermal conductivity, so by measuring the temperature of the outer wall of the U-shaped sleeve 3, the temperature of the medium in the spiral flow channel 5 can be easily measured, which is convenient for controlling the temperature of the instant heater. In addition, the U-shaped sleeve 3 also has the functions of auxiliary heating and equalizing heat to ensure the consistency of the outlet water temperature.
[0022] In the embodiment, Figures 1 to 3 As shown, the instant heater also includes: a first temperature control device 8 that can be automatically reset, used to measure the temperature of the U-shaped sleeve 3, as a U-shaped heating tube 1 circuit breaker signal, and the operating temperature is the first temperature; a second temperature control device 9 that can be manually reset, used to measure the temperature of the U-shaped sleeve 3, as a U-shaped heating tube 1 circuit breaker signal, and the operating temperature is the second temperature; the first temperature is the adjustment setting value, the second temperature is a fixed value, and the first temperature is less than the second temperature. The first temperature control device 8 of this embodiment is an automatically reset thermostat or a power relay controlled by an electronic circuit. By setting the operating temperature of the first temperature control device 8, the heating temperature can be set, and the temperature can be controlled according to actual needs to ensure that the heating degree of the medium reaches the specified standard. . The second temperature control device 9 is a non-automatic temperature controller or thermal circuit breaker, which is used to avoid dry burning when there is no medium flowing in the spiral flow channel 5.
[0023] In the embodiment, Figure 1 As shown, the instant heater further includes: a U-shaped groove-shaped protective shell 10, made of insulating and heat-insulating material, for placing the U-shaped heating tube 1, and the first temperature control device 8 and the second temperature control device 9 are installed on the mounting column 11 of the protective shell 10 by screws. The protective shell 10 of this embodiment has multiple functions, one is to serve as a mounting seat for various components, the second is to play a protective role, and the third is to serve as a heat-insulating component.
[0024] In the embodiment, Figure 1 As shown, the two ends of the protective shell 10 are provided with slots, and the liquid inlet connector 6 and the liquid outlet connector 7 are provided with elastic buckles correspondingly, and the elastic buckles are engaged with the slots. With this structure, the protective shell 10 can also play a role in limiting and fixing the liquid inlet connector 6 and the liquid outlet connector 7 to prevent loosening, and the assembly is also more convenient.
[0025] In the embodiment, Figure 1 As shown, the instant heater further includes: a grounding plate 12 fixed on the U-shaped sleeve 3. The grounding plate 12 is electrically connected to the U-shaped sleeve 3 by welding or riveting. Due to the conductive property of the U-shaped sleeve 3, it not only provides leakage protection for the instant heater, but also provides grounding protection for the medium in the spiral flow channel 5, thereby improving the safety of the instant heater.
[0026] In the embodiment, Figure 1 , 2 As shown, the instant heater also includes a temperature sensor 13 installed in the liquid outlet connector 7 for measuring the outlet water temperature. The temperature sensor 13 displays the outlet water temperature for the convenience of real-time viewing by the user, and also assists in determining whether the instant heater is working properly.
[0027] In the embodiment, Figure 2 As shown, the instant heater also includes: a sealing cover 14 with a hole, installed between the wiring terminal 2 and the liquid inlet joint 6, and between the wiring terminal 2 and the liquid outlet joint 7; a first sealing member 15, arranged between the sealing cover 14 and the liquid inlet joint 6, and between the sealing cover 14 and the liquid outlet joint 7; a second sealing member 16, arranged between the U-shaped sleeve 3 and the liquid inlet joint 6, and between the U-shaped sleeve 3 and the liquid outlet joint 7. The above connection structure improves the reliability of the instant heater and avoids leakage.
[0028] In the embodiment, the U-shaped heating tube 1, the U-shaped sleeve 3 and the flow guide spring 4 are formed by bending after nesting straight tubes. The U-shaped heating tube 1 and the U-shaped sleeve 3 are both made of stainless steel, which has good bending process performance, and the flow guide spring 4 itself has elasticity, so the three straight tube structures can be nested and assembled before bending, and the overall process is stable and reliable, and the product consistency is also relatively high.
[0029] Obviously, the above embodiments of the present invention are only examples for explaining the present invention, and are not intended to limit the implementation methods of the present invention. Other obvious changes or modifications derived from the essence of the present invention still fall within the protection scope of the present invention.
Claims
1. A U-shaped nested stainless steel instant heater, characterized in that: include: A U-shaped heating tube (1) as a heating component, with a connection terminal (2) provided at one or both ends; A U-shaped sleeve (3) sleeved on the outside of the U-shaped heating tube (1); A flow guide spring (4) is arranged between the U-shaped heating tube (1) and the U-shaped sleeve (3) to form a spiral flow channel (5); A liquid inlet joint (6) and a liquid outlet joint (7) are mounted at both ends of the U-shaped sleeve (3) and are in communication with the spiral flow channel (5); the wiring terminal (2) is exposed from the liquid inlet joint (6) or the liquid outlet joint (7).
2. The U-shaped nested stainless steel instant heater according to claim 1, characterized in that: The U-shaped sleeve (3) is made of corrosion-resistant, heat-conductive metal material.
3. The U-shaped nested stainless steel instant heater according to claim 2, characterized in that: Also includes: A first temperature control device (8) capable of automatically resetting, used for measuring the temperature of the U-shaped sleeve (3) as a circuit breaker signal for the U-shaped heating tube (1), the operating temperature being a first temperature; A second temperature control device (9) with manual reset, used for measuring the temperature of the U-shaped sleeve (3) as a circuit breaker signal for the U-shaped heating tube (1), the operating temperature being a second temperature; The first temperature is an adjustment setting value, the second temperature is a fixed value, and the first temperature is less than the second temperature.
4. The U-shaped nested stainless steel instant heater according to claim 3, characterized in that: Also includes: A U-shaped groove-shaped protective shell (10) is made of insulating and heat-insulating material and is used to house the U-shaped heating tube (1); the first temperature control device (8) and the second temperature control device (9) are mounted on a mounting column (11) of the protective shell (10) by means of screws.
5. The U-shaped nested stainless steel instant heater according to claim 4, characterized in that: Both ends of the protective shell (10) are provided with card slots, and the liquid inlet connector (6) and the liquid outlet connector (7) are provided with elastic card buckles correspondingly, and the elastic card buckles are card-engaged with the card slots.
6. The U-shaped nested stainless steel instant heater according to claim 2, characterized in that: Also includes: A grounding plate (12) is fixed on the U-shaped sleeve (3).
7. The U-shaped nested stainless steel instant heater according to claim 1, characterized in that: Also includes: A temperature sensor (13) is installed in the liquid outlet joint (7) and is used to measure the outlet water temperature.
8. The U-shaped nested stainless steel instant heater according to claim 1, characterized in that: Also includes: A sealing cover (14) with a hole, installed between the wiring terminal (2) and the liquid inlet joint (6), and between the wiring terminal (2) and the liquid outlet joint (7); A first sealing member (15) is arranged between the sealing cover (14) and the liquid inlet joint (6), and between the sealing cover (14) and the liquid outlet joint (7); A second sealing member (16) is arranged between the U-shaped sleeve (3) and the liquid inlet joint (6), and between the U-shaped sleeve (3) and the liquid outlet joint (7).
9. The U-shaped nested stainless steel instant heater according to claim 1, characterized in that: The U-shaped heating tube (1), the U-shaped sleeve (3) and the flow guide spring (4) are formed by nesting straight tubes and then bending them.