Instant heater with integrated structure

Abstract

The utility model discloses an instant heater with an integrated structure, which comprises a shell and a heating core rod, the shell is provided with a spiral flow channel, and a liquid inlet and a liquid outlet are arranged at two ends of the spiral flow channel in the vertical direction; the heating core rod is arranged in the spiral runner, and an electrode is arranged on one side of the heating core rod; the shell and the two ends of the outer wall of the heating core rod are welded and fixed into a whole. According to the device, the structure of the heater is simplified, the sealing performance and the heating performance are improved, and the heating efficiency is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of heaters, in particular to an instant heating heater with an integrated structure. Background Art

[0002] The spiral heater is made of one or more groups of spirally wound flow channels placed in a shell. Its characteristics are compact structure, larger heat transfer area than straight tubes, and small temperature difference stress, but it is difficult to clean the inside of the tube. It can be used for heating or cooling fluids with higher viscosity. The structure of the heater for hemodialysis equipment adopts a heating method in which the heater is inserted into the water storage tank to heat the liquid. The traditional heater is connected to the water storage tank with flanges, seals, screws and other accessories, and the structure is complicated.

[0003] The patent number "CN2828648Y" discloses a liquid heater structure, including a heating core and a shell. The heating core includes a conductive end, a water inlet pipe, a water inlet hole and a heating guide groove. The conductive end is arranged on the end face of the first end of the heating core, and is connected to the power supply required for heating. The water inlet pipe is also arranged on the end face of the first end of the heating core, and is connected to the heating guide groove through the water inlet hole. The heating guide groove is arranged on the outer peripheral surface of the heating core, and extends in a circuitous manner from the first end of the heating core to the second end. The shell is provided with an assembly port and a water outlet pipe. The assembly port is opened at the first end of the shell, and the water outlet is arranged on the end face of the second end of the shell. The device has many connection structures, complex assembly, and is prone to damage to spare parts. It lacks stability and simplicity. Summary of the invention

[0004] Purpose of the invention: In order to solve the problems of complex heater structure, low heat conduction efficiency and poor stability, the utility model discloses an instant heater with an integrated structure.

[0005] The utility model discloses an instant heating heater with an integrated structure, including a shell and a heating core rod; the shell is provided with a spiral flow channel, and a liquid inlet and a liquid outlet are provided at both ends of the spiral flow channel in a vertical direction; the spiral flow channel winds around the length direction of the outer wall of the heating core rod. The heating core rod is placed inside the spiral flow channel, and an electrode is provided on one side of the heating core rod; the integrated structure integrates traditional spare parts into one body while ensuring functionality, eliminating accessories such as screws, flanges, and sealing rings; the metal shell and the two ends of the electric heating tube are fixed by welding, and the liquid flows from the inside of the spiral flow channel to achieve the heating function.

[0006] Preferably, the instant heater with integrated structure comprises an outer shell and a heating core rod; the outer shell is provided with a spiral flow channel, and liquid inlet and liquid outlet are provided at two ends of the spiral flow channel in the vertical direction, and the liquid inlet and liquid outlet are located vertically above the spiral flow channel, which can effectively avoid the occurrence of dripping and leakage; the heating core rod is placed inside the spiral flow channel, and the outer wall of the heating core rod serves as the inner wall of the flow channel for liquid to flow through, which improves the heat conduction efficiency and simplifies the structure at the same time, and an electrode is provided on one side of the heating core rod, and the electrode is located on the side of the liquid outlet. When heating, heating starts from the liquid inlet side, which can increase the heating space and allow the liquid to be heated evenly; the outer shell and the outer wall of the heating core rod are sealed and welded at both ends and fixed as a whole, which effectively ensures the sealing of the device.

[0007] Preferably, the spiral flow channel winds around the length direction of the outer wall of the heating core rod, and the liquid is injected from the liquid inlet and flows in a ring shape around the spiral flow channel through the outside of the heating core rod. During heating, the liquid is heated at 360°, which can increase the heating area and improve the heating efficiency.

[0008] Preferably, the outer wall of the spiral flow channel is a uniform thickness structure, which completely covers the spiral flow channel and is evenly distributed on the spiral flow channel, thereby increasing the reliability and stability of the heater and preventing oxidation corrosion.

[0009] Preferably, a liquid inlet guide groove is provided below the liquid inlet, and the liquid inlet guide groove is connected to the spiral flow channel, and a liquid outlet guide groove is provided below the liquid outlet, and the liquid outlet guide groove is connected to the spiral flow channel; the bottom of the liquid inlet is sealed and connected to the upper opening of the liquid inlet guide groove; the bottom of the liquid outlet is sealed and connected to the upper opening of the liquid outlet guide groove; this integrated structure eliminates accessories such as flanges and sealing rings, realizes direct connection between the liquid inlet and the liquid inlet guide groove, and between the liquid outlet and the liquid outlet guide groove, can simplify the equipment structure, and has a better sealing effect and is not easy to leak.

[0010] Preferably, the spiral flow channel is integrally connected to the liquid inlet guide groove, the liquid outlet guide groove and the outer shell, the liquid inlet guide groove and the bottom of the liquid outlet guide groove are sealedly connected to one end of the spiral flow channel, and the liquid outlet guide groove and the bottom are sealedly connected to the other end of the spiral flow channel; the spiral flow channel is located on the outer shell and is fixed to the outer shell as a whole; the integrated structure is simpler and easier to assemble, while improving the sealing of the device.

[0011] Preferably, the spiral flow channel is provided with a flow limiting ring along the circumferential direction of the protrusion, and the flow limiting ring is located between two adjacent protruding spiral flow channels. The width of the flow limiting ring is 0.4 to 0.6 times the spiral diameter of the spiral flow channel, and the flow limiting ring is sealed and fitted with the heating core rod. The flow limiting ring creates resistance to the liquid flowing through, thereby limiting the liquid flow rate, extending the heating time, and enhancing the heating effect.

[0012] Preferably, the electrode is located at one end of the heating core rod and connected to the required heating power supply, and the electrode is located on one side of the liquid outlet, and a protective cover is provided on the electrode; when heating, the electrode starts to heat from the liquid inlet side and gradually expands to the liquid outlet side, so that the range of liquid heating is larger, and the heating efficiency is effectively improved.

[0013] Preferably, both ends of the shell are sealed and welded to the heating core rod, and both ends are completely in contact with the heating core rod.

[0014] The utility model has the following beneficial effects: the device integrates the parts of the heater into one, and eliminates the screws, nuts, flat washers, spring washers, bottom covers, flanges, sealing rings and plastic shells on the traditional heater, making the structure of the device simpler and easier to assemble. The shell is connected to the electric heating tube by welding. Compared with the sealing ring, the liquid is not easy to leak and is more stable, thereby improving the stability and reliability of the heater during operation. The shell is provided with a spiral heating flow channel, and the spiral flow channel is provided with evenly distributed limiting rings. When heating, the liquid is injected from the liquid inlet and extends along the flow channel. The limiting ring can effectively control the flow rate and make the heating uniform; the heating core rod is located inside the spiral flow channel, and the outer wall of the heating core rod serves as the inner wall of the liquid flow channel, which can effectively improve the heating efficiency. The device not only simplifies the structure of the heater in structure, but also improves the sealing and heating performance, and enhances the heating efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a cross-sectional view of an instant heating heater with an integrated structure according to the utility model.

[0016] Figure 2 It is a three-dimensional structural diagram of an instant heating type heater with an integrated structure of the utility model.

[0017] Figure numbers: liquid inlet—1; liquid inlet guide groove—2; flow limiting ring—3; spiral flow channel—4; liquid—5; heating core rod—6; liquid outlet—7; liquid outlet guide groove—8; electrode—9; welding point—10. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] Embodiment 1: The utility model discloses an instant heating heater with an integrated structure, including a shell and a heating core rod 6; the shell is provided with a spiral flow channel 4, and a liquid inlet 1 and a liquid outlet 7 are provided in the vertical direction at both ends of the spiral flow channel 4, and the liquid inlet 1 and the liquid outlet 7 are located vertically above the spiral flow channel 4, which can effectively avoid the occurrence of dripping and leakage; a liquid inlet guide groove 2 is provided below the liquid inlet 1, the liquid inlet 1 is sealed and connected to the liquid inlet guide groove 2 and fixed with an external nut, and the liquid inlet guide groove 2 is fixedly connected to one end of the spiral flow channel 4; a liquid outlet guide groove 8 is provided below the liquid outlet 7, and the liquid outlet 7 is fixed to the outlet The liquid guide groove 8 is sealed and fixed with an external nut, and the liquid outlet guide groove 8 is fixedly connected to the other end of the spiral flow channel 4; the heating core rod 6 is placed inside the spiral flow channel 4, and the outer wall of the heating core rod 6 serves as the inner wall of the flow channel through which the liquid 5 flows, which improves the heat conduction efficiency and simplifies the structure at the same time, and an electrode 9 is provided on one side of the heating core rod 6, and the electrode is located on the liquid outlet side. When heating, heating starts from the liquid inlet 1 side, which can increase the heating space and allow the liquid 5 to be heated evenly; the outer shell and the two ends of the outer wall of the heating core rod 6 are sealed and welded at the welding point 10, fixed as a whole, and effectively ensure the sealing of the device.

[0020] The spiral flow channel 4 is wound around the length direction of the outer wall of the heating core rod 6, and the flow channel surrounds the heating core rod 6 360°. The direction starts from the liquid inlet 1, and extends around the heating core rod 6 to the liquid outlet 7. The two ends are respectively connected to the liquid inlet guide groove 2 and the liquid outlet guide groove 8. The liquid 5 is injected from the liquid inlet 1, flows through the liquid inlet guide groove 2 into the spiral flow channel 4, and flows in a ring shape along the spiral flow channel through the outside of the heating core rod 6. During heating, the electrode 9 is connected to an external heating power supply, and the heating core rod begins to dissipate heat 360°. The liquid 5 is evenly heated in the spiral flow channel, which can increase the heating area and improve the heating efficiency. After the heating is completed, the liquid flows out of the liquid outlet through the liquid outlet guide groove.

[0021] The spiral flow channel 4 is a structure of equal thickness, which fully covers the shell, covers and is evenly distributed on the spiral flow channel, and the raised parts are evenly distributed on the shell; the equal thickness structure uses metal titanium instead of the traditional plastic shell, and when heated, it can ensure that the size and thickness of the shell are not affected by the temperature, maintain a state of equal thickness and equal hardness, improve the reliability and stability of the heater, and at the same time can achieve the effect of preventing oxidation corrosion.

[0022] A liquid inlet guide groove 2 is provided below the liquid inlet 1, and the liquid inlet 1 is sealed and connected to the liquid inlet guide groove 2, and is fixed externally with a nut, and the liquid inlet guide groove is connected to the raised portion of one end of the spiral flow channel 4, and a liquid outlet guide groove 8 is provided below the liquid outlet 7, and the liquid outlet is sealed and connected to the liquid outlet guide groove, and is fixed with a nut, and the liquid outlet guide groove is connected to the raised portion of the spiral flow channel 4; the bottom of the liquid inlet 1 is sealed and connected to the upper opening of the liquid inlet guide groove; the bottom of the liquid outlet 7 is sealed and connected to the upper opening of the liquid outlet guide groove 8; the liquid inlet 1 and the liquid inlet guide groove 2 are located on a side perpendicular to the spiral flow channel, and the liquid outlet 7 and the liquid outlet guide groove 8 are located on the same side perpendicular to the spiral flow channel and as the liquid inlet 1 and the liquid inlet guide groove 2; this integrated structure eliminates accessories such as flanges and sealing rings, realizes direct connection between the liquid inlet 1 and the liquid inlet guide groove, and between the liquid outlet and the liquid outlet guide groove, can simplify the equipment structure, and has a better sealing effect and is not easy to leak.

[0023] The spiral flow channel 4, the liquid inlet 1, the liquid inlet guide groove 2, the liquid outlet 7, and the liquid outlet guide groove 8 are integrally connected to the shell, the liquid inlet guide groove 2 and the bottom of the liquid outlet guide groove are sealedly connected to one end of the spiral flow channel, and the liquid outlet guide groove and the bottom are sealedly connected to the other end of the spiral flow channel; the liquid 5 is injected from the liquid inlet 1, flows through the liquid inlet guide groove into the interior of the spiral flow channel, and flows in a ring shape along the spiral flow channel through the outside of the heating core rod 6, and the direction extends from one end of the liquid inlet 1 to one end of the liquid outlet 7; the spiral flow channel is located on the shell and is fixed to the shell as a whole; the two ends of the shell are sealed and welded to the two ends of the heating core rod 6 at the welding point 10, and the heating core rod is provided with an electrode 9, and the electrode is located at one end of the liquid outlet 7; when heating, the electrode is used to connect to an external heating power supply; this integrated structure is simpler and convenient to assemble, and at the same time improves the sealing of the device.

[0024] The spiral flow channel 4 is provided with a flow limiting ring 3 along the raised circumferential direction, the flow limiting ring 3 is located between two adjacent raised spiral flow channels, and is evenly distributed on the outer shell with the spiral flow channel, the width of the flow limiting ring is 0.4~0.6 times the diameter of the spiral flow channel, and the thickness is the same as the spiral flow channel, and the flow limiting ring 3 is sealed and fitted with the heating core rod 6; the liquid 5 is injected from the liquid inlet 1, flows through the liquid inlet guide groove 2 and enters the spiral flow channel 4, the flow limiting ring 3 will cause resistance to the liquid flowing through, so that the liquid flows at a uniform speed in the spiral flow channel, thereby achieving the effect of controlling the liquid flow rate, extending the heating time, and enhancing the heating effect.

[0025] The electrode 9 is located at one end of the heating core rod 6, and the electrode direction is in the same horizontal direction as the heating core rod, and is used to connect to the required heating power supply. The electrode is located on one side of the liquid outlet 7, and a protective cover is provided on the electrode 9; during heating, the electrode starts to be heated from the side of the liquid inlet 1, and the heating direction gradually expands toward the side of the liquid outlet. When the liquid 5 flows through the spiral flow channel 4, it can be heated from the beginning of the liquid inlet, and one end of the heating core rod 6 can be heated by the liquid inlet 1. During the process of the liquid 5 from the liquid inlet 1 to the liquid outlet 7, it can participate in the entire heating process of the heating core rod. The liquid is heated in a wider range and more evenly, which can effectively improve the heating efficiency.

[0026] The two ends of the shell are sealed and welded to the heating core rod 6, and the two ends are completely fitted with the heating core rod 6. The spiral flow channel is fixed to the shell as a whole. The limiting ring 3 is evenly distributed in the middle of the protrusions of the two adjacent spiral flow channels 4, and the convex part is a uniform and equal thickness structure, and completely fits the outer wall of the heating core rod. When heating, the liquid 5 is injected from the liquid inlet 1 and extends along the flow channel direction. The limiting ring can effectively control the flow rate and make the heating uniform; the heating core rod 6 is located inside the spiral flow channel 4, and the outer wall of the heating core rod serves as the inner wall of the liquid flow channel, which can effectively improve the heating efficiency. The device not only simplifies the structure of the heater in structure, but also improves the sealing and heating performance, and enhances the heating efficiency.

[0027] Embodiment 2: This embodiment provides a heater housing, wherein the housing is provided with a spiral body flow channel, a liquid inlet guide groove 2 is provided in the vertical direction of one end of the spiral flow channel 4, and a liquid inlet port 1 is provided above the liquid inlet guide groove; a liquid outlet guide groove is provided in the vertical direction of the other end of the spiral flow channel, and a liquid outlet port 7 is provided above the liquid outlet guide groove 8; the liquid inlet port 1 and the liquid outlet port 7, the liquid inlet guide groove and the liquid outlet guide groove are on the same side of the spiral flow channel 4; the spiral flow channel 4 is provided with a flow limiting ring evenly divided 3. The width of the limiting ring is 0.4 to 0.6 times the diameter of the raised portion of the spiral flow channel, and the limiting ring and the spiral flow channel are both evenly distributed equal thickness structures. The limiting ring 3 and the spiral flow channel are wound around the heating core rod 6, along the direction from the liquid inlet 1 to the liquid outlet 7, and the two ends of the shell are sealed and welded to the outer wall of the heating core rod, and the limiting ring is in contact with the outer wall of the heating core rod; when the liquid 5 is injected from the liquid inlet 1, it flows in the spiral flow channel toward the liquid outlet 7.

[0028] The spiral flow channel 4, the liquid inlet 1 and the liquid outlet 7, the liquid inlet guide groove 2 and the liquid outlet guide groove 8 are integrated with the shell, the liquid inlet guide groove and the bottom of the liquid outlet guide groove are sealed and connected to one end of the spiral flow channel, and the liquid outlet guide groove and the bottom are sealed and connected to the other end of the spiral flow channel; the bottom of the liquid inlet 1 is sealed and connected to the upper opening of the liquid inlet guide groove 2; the bottom of the liquid outlet 7 is sealed and connected to the upper opening of the liquid outlet guide groove; the liquid inlet 1 and the liquid inlet guide groove 2 are located on one side perpendicular to the spiral flow channel, and the liquid outlet and the liquid outlet guide groove are located on the vertical In the spiral flow channel 4 and on the same side as the liquid inlet 1 and the liquid inlet guide groove 2; the liquid 5 is injected from the liquid inlet 1, flows through the liquid inlet guide groove 2 into the spiral flow channel, and flows in a ring shape along the spiral flow channel 4 through the outside of the heating core rod 6, and the direction extends from the liquid inlet 1 end to the liquid outlet end; the integrated structure integrates traditional spare parts into one while ensuring functionality, eliminating accessories such as screws, flanges, and sealing rings; the metal shell and both ends of the electric heating tube are fixed by welding, and the liquid 5 flows from the inside to achieve the heating function.

[0029] The spiral flow channel 4 is provided with a flow limiting ring 3 along the convex surrounding direction. The flow limiting ring is located between two adjacent convex spiral flow channels and is evenly distributed on the shell with the spiral flow channel. The width of the flow limiting ring is 0.4 to 0.6 times the diameter of the spiral flow channel 4, and the thickness is the same as the spiral flow channel. The equal thickness structure fully covers the shell, and the flow limiting ring 3 is sealed and fitted with the heating core rod 6; the equal structure sheet uses metal titanium instead of the traditional plastic shell. When heated, it can ensure that the size and thickness of the shell are not affected by the temperature, maintain the equal thickness and hardness state, improve the reliability and stability of the heater, and achieve the effect of preventing oxidation corrosion. The liquid 5 is injected from the liquid inlet, flows through the liquid inlet guide groove 2 and enters the spiral flow channel 4. The flow limiting ring 3 will cause resistance to the liquid flowing through, so that the liquid flows at a uniform speed in the spiral flow channel, so as to control the liquid flow rate, prolong the heating time, and enhance the heating effect.

[0030] The two ends of the shell are sealed and welded to the heating core rod 6, and the two ends are completely fitted with the heating core rod. The spiral flow channel 4 is fixed to the shell as a whole. The flow limiting ring 3 is evenly distributed in the middle of the protrusions of the two adjacent spiral flow channels, and the structure with the protrusion part is uniform and of equal thickness, and completely fits with the outer wall of the heating core rod 6. When heating, the liquid 5 is injected from the liquid inlet and extends along the flow channel. The flow limiting ring 3 can effectively control the flow rate and make the heating uniform. The heating core rod is located inside the spiral flow channel, and the outer wall of the heating core rod serves as the inner wall of the liquid flow channel, which can effectively improve the heating efficiency. The device not only simplifies the structure of the heater in structure, but also improves the sealing and heating performance, and enhances the heating efficiency.

[0031] The spiral flow channel 4 is wound around the length direction of the outer wall of the heating core rod 6, and the flow channel surrounds the heating core rod 360°. The direction starts from the liquid inlet 1, and extends around the heating core rod 6 to the liquid outlet 7. The two ends are respectively connected to the liquid inlet guide groove 2 and the liquid outlet guide groove 8. The liquid is injected from the liquid inlet 1, flows through the liquid inlet guide groove into the spiral flow channel, and flows in a ring shape along the spiral flow channel through the outside of the heating core rod. During heating, the electrode 9 is connected to an external heating power supply, and the heating core rod begins to dissipate heat 360°. The liquid 5 is evenly heated in the spiral flow channel, which can increase the heating area and improve the heating efficiency. After the heating is completed, the liquid flows out of the liquid outlet 7 through the liquid outlet guide groove.

[0032] In summary, the device of the utility model integrates the parts of the heater into one, and eliminates the screws, flat washers, spring washers, bottom covers, flanges, sealing rings and plastic shells on the traditional heaters, making the structure of the device simpler and easier to assemble. The shell is connected to the electric heating tube by welding. Compared with the sealing ring, the liquid is not easy to leak and is more stable, thereby improving the stability and reliability of the heater during operation. The shell is provided with a spiral heating flow channel, and the spiral flow channel 4 is provided with uniformly distributed flow limiting rings 3. When heating, the liquid 5 is injected from the liquid inlet and extends along the flow channel direction. The flow limiting ring can effectively control the flow rate and make the heating uniform; the heating core rod 6 is located inside the spiral flow channel, and the outer wall of the heating core rod serves as the inner wall of the liquid flow channel, which can effectively improve the heating efficiency. The device not only simplifies the structure of the heater in structure, but also improves the sealing and heating performance, and enhances the heating efficiency.

[0033] The present invention is not limited to the specific technical solutions described in the above embodiments. In addition to the above embodiments, the present invention may also have other implementation modes. For those skilled in the art, any technical solutions formed by any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An instantaneous heater with an integrated structure, characterized in that: It includes a shell and a heating core rod (6); The shell is provided with a spiral flow channel (4), and a liquid inlet (1) and a liquid outlet (7) are respectively provided in a vertical direction at both ends of the spiral flow channel (4); The spiral flow channel (4) surrounds the heating core rod (6), and an electrode (9) is provided on one side of the heating core rod (6); The outer shell is fixed integrally with both ends of the outer wall of the heating core rod (6).

2. The instantaneous heater of the integrated structure according to claim 1, characterized in that The spiral flow channel (4) winds in a circuitous manner along the heating core rod (6) in a direction from the liquid inlet to the liquid outlet.

3. The instantaneous heater of the integrated structure according to claim 2, characterized in that The outer wall of the spiral flow channel (4) is of a uniform thickness structure and is evenly distributed in the spiral flow channel (4).

4. The instantaneous heater of the integrated structure according to claim 1, characterized in that A liquid inlet guide groove (2) is provided below the liquid inlet (1), and the liquid inlet guide groove (2) is connected to the spiral flow channel (4); a liquid outlet guide groove (8) is provided below the liquid outlet (7), and the liquid outlet guide groove (8) is connected to the spiral flow channel (4).

5. The instantaneous heater of the integrated structure according to claim 4, characterized in that The spiral flow channel (4), the liquid inlet guide groove (2) and the liquid outlet guide groove (8) are located on the outer shell and are integrated with the outer shell.

6. The instantaneous heater of an integrated structure according to claim 2, characterized in that The spiral flow channel (4) is provided with a flow limiting ring (3) along the circumferential direction of the protrusion, the width of the flow limiting ring (3) is 0.4 to 0.6 times the spiral diameter of the spiral flow channel (4), and the flow limiting ring (3) is sealed and fitted with the heating core rod (6).

7. An instantaneous heater of integrated structure according to any one of claims 1 to 6, characterized in that The electrode (9) is located on one side of the liquid outlet (7).

8. An integrated instant heater according to any one of claims 1 to 6, characterized in that Both ends of the shell are sealed and fitted onto the heating core rod (6).

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