Electrically heated tube with improved construction

Abstract

The application relates to the technical field of electric heating elements, in particular to an electric heating pipe with improved structure, which comprises a heating component and a water pipe component; the heating component comprises an inner pipe, the right side of the inner pipe is fixedly connected with a fixing ring; the water pipe component comprises a water outlet pipe. In the application, the fluid force of water flow pushes the blade to rotate, when the blade rotates to the L-shaped limiting plate, the L-shaped limiting plate is pushed, the L-shaped limiting plate drives the water outlet pipe to exert a positive rotation force, the fixed block is prevented from being separated from the check ball, the water outlet pipe and the inner pipe are stably connected, when there is no water flow, power is cut off, at the moment, the water outlet pipe and the inner pipe can be quickly separated, thereby the scale in the inner pipe is cleaned, when the inner pipe is damaged, the water outlet pipe and the inner pipe can also be quickly separated, when the blade rotates, the third connecting plate, the second limiting plate and the third limiting plate move leftwards, the sealing plug can better seal the gap between the water outlet pipe and the fixing ring, and water leakage is prevented.

Description

Technical Field

[0001] This invention relates to the field of electric heating element technology, specifically to an improved electric heating tube. Background Technology

[0002] Most electric heating elements commonly found on the market are made of metal, with an internal resistance wire as the heating element, and are usually covered with a high-temperature resistant insulation layer to prevent leakage accidents. However, under long-term high-temperature environments, these traditional electric heating elements are prone to aging and corrosion, resulting in a shortened service life. A Chinese patent authorization announcement (CN111447700B) discloses an electric heating tube, comprising an insulating tube with a resistance wire groove on its outer wall; a resistance wire, wrapped around the outer wall of the insulating tube and protruding from the outer wall surface, the space formed by the wrapping of the resistance wire constituting an electrical isolation gap; a quartz glass tube covering the resistance wire, the open end of the quartz glass tube being fixed to a base fixing mechanism; and the electrical connection end of the resistance wire being introduced into the base fixing mechanism through the open end of the quartz glass tube. The tube also includes an upper end electrical connection mechanism and a lower end electrical connection mechanism for the resistance wire, which respectively cooperate with the upper and lower ends of the insulating tube. The upper end of the resistance wire is connected to the upper end electrical connection mechanism, and the lower end is connected to the lower end electrical connection mechanism. The open end of the quartz glass tube has a sealing skirt. An electrical isolation filling layer is provided within the electrical isolation gap. The tube offers good electrical connection performance, prevents leakage, and facilitates daily maintenance. When the aforementioned electric heating elements exhibit problems such as aging or corrosion, they are usually replaced directly. However, during installation, the connection between the electric heating element and the water inlet pipe is often achieved through threaded connections or by filling the gaps with adhesive. Regardless of whether threaded or adhesive is used, disassembly is inconvenient. Furthermore, over time, scale will form on the pipe wall, leading to blockages that are difficult to clean. Summary of the Invention

[0003] Therefore, the present invention provides an improved electric heating tube to solve the above-mentioned problems.

[0004] This invention provides the following technical solution: an improved electric heating tube, comprising a heating component and a water pipe component; The heating component includes an inner tube, and a fixing ring is fixedly connected to the right side of the inner tube; The water pipe component includes a water outlet pipe, a first connecting plate is fixedly connected to the inner wall of the water outlet pipe, a first rotating rod is rotatably connected to the inner wall of the first connecting plate, a first limiting plate is fixedly connected to the inner wall of the first connecting plate, a blade is fixedly connected to the right end of the first rotating rod, and a sealing plug is slidably connected to the left side of the water outlet pipe.

[0005] As a preferred embodiment of the present invention, an L-shaped limiting plate is fixedly connected to the inner wall of the water outlet pipe. One side of the L-shaped limiting plate is in contact with the surface of the blade. A second connecting plate is provided on the left side of the blade. A first mounting groove is provided through the left side of the second connecting plate. The groove wall of the first mounting groove is slidably connected to the surface of the first limiting plate. A connecting hole is provided through the left side of the second connecting plate. A screw is fixedly connected to the left end of the first rotating rod. A second rotating rod is fixedly connected to the left end of the screw. The surface of the screw is threadedly connected to the wall of the connecting hole. The inner wall of the fixing ring is slidably connected to the surface of the sealing plug.

[0006] As a preferred embodiment of the present invention, the number of blades is twelve, and the twelve blades are arranged in a circular array. The number of L-shaped limiting plates is twelve, and the twelve L-shaped limiting plates are arranged in a circular array.

[0007] As a preferred embodiment of the present invention, a second mounting groove is provided on the right side of the fixing ring, the groove wall of the second mounting groove is slidably connected to the surface of the water outlet pipe, a connecting frame is fixedly connected to the right side of the fixing ring, and a fixing block is fixedly connected to the surface of the water outlet pipe.

[0008] As a preferred embodiment of the present invention, the outer side of the fixing block is provided with a receiving groove, and the inner wall of the connecting frame is fixedly connected with a retaining ball. The groove wall of the receiving groove matches the surface of the retaining ball. There are four connecting frames and four retaining balls, and the four connecting frames and retaining balls are arranged in a circular array.

[0009] As a preferred embodiment of the present invention, a third connecting plate is fixedly connected to the upper, lower, front, and rear four sides of the second connecting plate. A second limiting plate is fixedly connected to the outer end of the third connecting plate. A third limiting plate is fixedly connected to the outer side of the second limiting plate. The outer side of the third limiting plate is slidably connected to the inner wall of the water outlet pipe. The left side of the third limiting plate is fixedly connected to the right side of the sealing plug.

[0010] As a preferred embodiment of the present invention, there are four second limiting plates and four third limiting plates, and the four second limiting plates and four third limiting plates are arranged in a circular array.

[0011] In a preferred embodiment of the present invention, the water pipe component is located on the right side of the heating component, the inner wall of the inner pipe is fixedly connected with an impeller, the outer wall of the inner pipe is fixedly sleeved with a resistance wire, the surface of the resistance wire is fixedly sleeved with a quartz glass tube, and the surface of the quartz glass tube is fixedly sleeved with an outer sleeve.

[0012] As a preferred embodiment of the present invention, the inner tube is made of high-temperature resistant ceramic material, the diameter of the inner tube is 15mm, the length of the inner tube is 200mm, the resistance wire is made of nickel-chromium alloy wire, the diameter of the resistance wire is 0.5mm, the diameter of the quartz glass tube is 20mm, the length of the quartz glass tube is 205mm, the outer jacket is made of 304 stainless steel, the thickness of the outer jacket is 1mm, and the length of the outer jacket is 220mm.

[0013] As a preferred embodiment of the present invention, a water heater is installed on the left side of the inner tube.

[0014] Compared with the prior art, the beneficial effects of the present invention are: In this invention, the water outlet pipe is inserted into the second mounting groove on the fixing ring. The water outlet pipe is then rotated, causing the fixing block to be positioned within the connecting frame, allowing the retaining ball to engage with the receiving groove, thus fixing the water outlet pipe. This fixing method is simple and quick to assemble and disassemble. When water flows through the inner pipe, the water flows over the impeller, which applies a torque to the water flow, causing the water to enter the water outlet pipe in a spiral motion. The fluid force of the water flow drives the blades to rotate. When the blades reach the L-shaped limiting plate, they push the L-shaped limiting plate, causing it to apply a forward rotational force to the water outlet pipe, ensuring the fixing block remains in position. The connection is located inside the frame to prevent the fixing block from detaching from the ball, ensuring a secure connection between the outlet pipe and the inner pipe. When there is no water flow, the power is turned off, allowing for quick separation of the outlet pipe and the inner pipe to clean the scale inside the inner pipe. Even if the inner pipe is damaged, the outlet pipe and the inner pipe can be quickly separated. When the blades rotate, they drive the first rotating rod to rotate, causing the screw to rotate. The first mounting groove limits the movement of the second connecting plate to the left, which in turn moves the third connecting plate, the second limiting plate, and the third limiting plate to the left. This allows the sealing plug to better seal the gap between the outlet pipe and the fixing ring, preventing leakage. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the heating component structure in this invention; Figure 3 For the present invention Figure 1 Exploded view of the overall structure in the image; Figure 4 For the present invention Figure 3 A schematic diagram of a local structure in the image; Figure 5 This is a schematic diagram of the water pipe component structure in this invention; Figure 6 For the present invention Figure 5 A schematic diagram of the internal structure of the water pipe components in the diagram; Figure 7 For the present invention Figure 5 Enlarged view of point A in the image; Figure 8 For the present invention Figure 5 Enlarged view of point B in the image; Figure 9 For the present invention Figure 6 Enlarged view of point C in the image; Figure 10 For the present invention Figure 6 Enlarged view of point D in the image.

[0016] In the diagram: 1. Heating component; 2. Water pipe component; 101. Outer casing; 102. Quartz glass tube; 103. Resistance wire; 104. Inner tube; 105. Ball clamp; 106. Impeller; 107. Fixing ring; 108. Second mounting groove; 109. Connecting frame; 201. Water outlet pipe; 202. Sealing plug; 203. Fixing block; 204. Receiving groove; 205. L-shaped limiting plate; 206. Blade; 207. Third connecting plate; 208. Screw; 209. First limiting plate; 210. Second connecting plate; 211. Connecting hole; 212. First mounting groove; 213. Third limiting plate; 214. Second limiting plate; 215. Second rotating rod; 216. First connecting plate; 217. First rotating rod. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Please see Figures 1-10 The technical solution provided by the present invention specifically includes the following embodiments: Example: An improved electric heating element, comprising a heating component 1 and a water pipe component 2; Heating component 1 includes an inner tube 104, and a fixing ring 107 is fixedly connected to the right side of the inner tube 104; The water pipe component 2 includes a water outlet pipe 201, a first connecting plate 216 fixedly connected to the inner wall of the water outlet pipe 201, a first rotating rod 217 rotatably connected to the inner wall of the first connecting plate 216, a first limiting plate 209 fixedly connected to the inner wall of the first connecting plate 216, a blade 206 fixedly connected to the right end of the first rotating rod 217, and a sealing plug 202 slidably connected to the left side of the water outlet pipe 201. The sealing plug 202 can seal the gap between the water outlet pipe 201 and the fixing ring 107 to prevent water leakage.

[0019] An L-shaped limiting plate 205 is fixedly connected to the inner wall of the water outlet pipe 201. One side of the L-shaped limiting plate 205 is in contact with the surface of the blade 206. A second connecting plate 210 is provided on the left side of the blade 206. A first mounting groove 212 is opened through the left side of the second connecting plate 210. The groove wall of the first mounting groove 212 is slidably connected to the surface of the first limiting plate 209. A connecting hole 211 is opened through the left side of the second connecting plate 210. A screw 208 is fixedly connected to the left end of the first rotating rod 217. A second rotating rod 215 is fixedly connected to the left end of the screw 208. The surface of the screw 208 is threadedly connected to the wall of the connecting hole 211. The inner wall of the fixing ring 107 is slidably connected to the surface of the sealing plug 202. When the blade 206 rotates, it will drive the first rotating rod 217 to rotate, causing the screw 208 to rotate. Through the limiting of the first mounting groove 212, the second connecting plate 210 moves to the left, driving the third connecting plate 207, the second limiting plate 214 and the third limiting plate 213 to move to the left, so that the sealing plug 202 can better seal the gap between the water outlet pipe 201 and the fixing ring 107 to prevent water leakage. When there is no water flow, the power is turned off. At this time, the water outlet pipe 201 and the inner pipe 104 can be quickly separated, so that the scale inside the inner pipe 104 can be cleaned. If the inner pipe 104 is damaged, the water outlet pipe 201 and the inner pipe 104 can also be quickly separated.

[0020] There are twelve blades 206 arranged in a ring array, and there are twelve L-shaped limiting plates 205 arranged in a ring array. The multiple blades 206 are designed so that the fluid force of the water flow will drive the blades 206 to rotate. When the blades 206 rotate to the L-shaped limiting plate 205, the force pushing the L-shaped limiting plate 205 will increase.

[0021] A second mounting groove 108 is provided on the right side of the fixing ring 107. The groove wall of the second mounting groove 108 is slidably connected to the surface of the water outlet pipe 201. A connecting frame 109 is fixedly connected to the right side of the fixing ring 107, and a fixing block 203 is fixedly connected to the surface of the water outlet pipe 201. The outer side of the fixing block 203 is provided with a receiving groove 204, and the inner wall of the connecting frame 109 is fixedly connected with a ball 105. The groove wall of the receiving groove 204 matches the surface of the ball 105. There are four connecting frames 109 and four ball 105. The four connecting frames 109 and four ball 105 are arranged in a ring array. By inserting the water outlet pipe 201 into the second mounting groove 108 opened on the fixing ring 107, the water outlet pipe 201 is rotated so that the fixing block 203 is located in the connecting frame 109, and the retaining ball 105 is inserted into the receiving groove 204, thus fixing the water outlet pipe 201. This fixing method is simple to assemble and disassemble, and is convenient and quick.

[0022] The second connecting plate 210 is fixedly connected to the third connecting plate 207 on all four sides (top, bottom, front, and back). The outer end of the third connecting plate 207 is fixedly connected to the second limiting plate 214. The outer side of the second limiting plate 214 is fixedly connected to the third limiting plate 213. The outer side of the third limiting plate 213 is slidably connected to the inner wall of the water outlet pipe 201. The left side of the third limiting plate 213 is fixedly connected to the right side of the sealing plug 202.

[0023] There are four second limiting plates 214 and four third limiting plates 213, which are arranged in a circular array.

[0024] Water pipe component 2 is located on the right side of heating component 1. The inner wall of inner pipe 104 is fixedly connected with impeller 106. The outer wall of inner pipe 104 is fixedly sleeved with resistance wire 103. The surface of resistance wire 103 is fixedly sleeved with quartz glass tube 102. The surface of quartz glass tube 102 is fixedly sleeved with outer sleeve 101. The inner tube 104 is made of high-temperature resistant ceramic material, with a diameter of 15mm and a length of 200mm. The resistance wire 103 is made of nickel-chromium alloy wire, with a diameter of 0.5mm. The quartz glass tube 102 has a diameter of 20mm and a length of 205mm. The outer jacket 101 is made of 304 stainless steel, with a thickness of 1mm and a length of 220mm. High-temperature resistant ceramic materials are silicon nitride ceramics, which are inorganic ceramic materials that do not shrink during sintering. Silicon nitride has very high strength, especially hot-pressed silicon nitride, which is one of the hardest substances in the world. It has properties such as high strength, low density, and high temperature resistance. It is made from silicon powder as raw material. First, it is shaped into the required shape using conventional molding methods. Then, it undergoes preliminary nitriding in nitrogen at a high temperature of 1200°C, causing some of the silicon powder to react with nitrogen to form silicon nitride. At this point, the entire green body already has a certain strength. Then, it undergoes a second nitriding in a high-temperature furnace at 1350°C to 1450°C, reacting to form silicon nitride. Silicon nitride with a theoretical density of 99% can be obtained by hot-pressing sintering.

[0025] Nickel-chromium alloy wire: Nickel-chromium alloy has high strength and corrosion resistance, which facilitates the heating of water flow and can also improve the service life of equipment; Quartz glass tubes, made from various pure natural quartz (such as crystal and quartz sand), are produced by melting these materials. They have an extremely low coefficient of linear expansion, only 1 / 10 to 1 / 20 that of ordinary glass, and excellent thermal shock resistance. They also possess high heat resistance, with a typical operating temperature of 1100℃ to 1200℃ and short-term operating temperatures reaching 1400℃. Quartz glass is primarily used in laboratory equipment and refining equipment for special high-purity products. Due to its high spectral transmittance, it is not damaged by radiation (unlike other glasses which darken after exposure to radiation), making it an ideal glass for spacecraft, wind tunnel windows, and spectrophotometer optical systems. Quartz glass tubes offer high transparency, strong high-temperature resistance, and are not easily deformed. 304 stainless steel is a common type of stainless steel with a density of 7.93 g / cm³. It is also known in the industry as 18 / 8 stainless steel, meaning it contains more than 18% chromium and more than 8% nickel. It can withstand high temperatures up to 800℃ and has good processing performance and high toughness. It is widely used in industrial, furniture decoration, food and medical industries.

[0026] When current passes through the resistance wire 103, the resistance wire 103 generates heat, which is transferred to the inner tube 104 and diffused out through the quartz glass tube 102, ultimately heating the water inside the inner tube 104. When using it, it is important to first check whether each component is intact, assemble each component according to the drawing, ensure that the interfaces fit tightly, install the assembled electric heating element onto the water heater, and before connecting the power supply, double-check that all connection points are secure and reliable. It is recommended to gradually increase the temperature during the first use and observe whether any abnormalities occur. When replacing parts, please disconnect the power supply to ensure safety.

[0027] A water heater is installed on the left side of the inner pipe 104.

[0028] This improved electric heating element works by generating heat when current passes through the resistance wire 103. The heat is transferred to the inner tube 104 and diffused out through the quartz glass tube 102, ultimately heating the water inside the inner tube 104. When using this element, it is important to first check that all components are intact. Assemble all components according to the drawings, ensuring the interfaces fit tightly. Install the assembled electric heating element onto the water heater. Before connecting the power, double-check that all connections are secure and reliable. For first-time use, it is recommended to gradually increase the temperature and observe for any abnormalities. When replacing parts, please disconnect the power to ensure safety. When installing the water outlet pipe 201, insert the water outlet pipe 201 into the second mounting groove 108 opened on the fixing ring 107. At this time, rotate the water outlet pipe 201 so that the fixing block 203 is located in the connecting frame 109, so that the retaining ball 105 is inserted into the receiving groove 204, completing the fixing of the water outlet pipe 201. This fixing method is simple and convenient to install and remove. When water flows into the inner pipe 104, the water flow will pass through the impeller 106. The impeller 106 applies a torque to the water flow, so that the water flow is in a spiral forward manner when entering the water outlet pipe 201. The fluid force of the water flow will drive the blade 206 to rotate. When the blade 206 rotates to the L-shaped limiting plate 205, it will push the L-shaped limiting plate 205, so that the L-shaped limiting plate 205 drives the water outlet pipe 201 to apply a forward rotation force, so that the fixing block 203 is always located in the receiving groove 204. Inside the connecting frame 109, the fixing block 203 is prevented from detaching from the ball 105, ensuring a secure connection between the water outlet pipe 201 and the inner pipe 104. When there is no water flow, the power is cut off, allowing for quick separation of the water outlet pipe 201 and the inner pipe 104 to clean the scale inside the inner pipe 104. Even if the inner pipe 104 is damaged, the water outlet pipe 201 and the inner pipe 104 can still be quickly separated. When the blade 206 rotates, it drives the first rotating rod 217 to rotate, causing the screw 208 to rotate. Through the limiting of the first mounting groove 212, the second connecting plate 210 moves to the left, driving the third connecting plate 207, the second limiting plate 214, and the third limiting plate 213 to move to the left, allowing the sealing plug 202 to better seal the gap between the water outlet pipe 201 and the fixing ring 107, preventing water leakage. Fluid dynamics is a branch of fluid mechanics that studies the motion of fluids as continuous media under the influence of forces and their interaction with boundaries. In a broader sense, it also includes the interaction between fluids and other forms of motion. The difference between fluid dynamics and fluid statics lies in the former's focus on fluids in motion; the difference between fluid dynamics and fluid kinematics lies in the former's consideration of forces acting on the fluid. Fluid dynamics comprises two main parts: liquid dynamics and gas dynamics.

[0029] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the invention.

Claims

1. An improved electric heating tube, characterized in that: Includes heating element (1) and water pipe component (2); The heating component (1) includes an inner tube (104), and a fixing ring (107) is fixedly connected to the right side of the inner tube (104). The water pipe component (2) includes a water outlet pipe (201), the inner wall of the water outlet pipe (201) is fixedly connected to a first connecting plate (216), the inner wall of the first connecting plate (216) is rotatably connected to a first rotating rod (217), the inner wall of the first connecting plate (216) is fixedly connected to a first limiting plate (209), the right end of the first rotating rod (217) is fixedly connected to a blade (206), and the left side of the water outlet pipe (201) is slidably connected to a sealing plug (202).

2. The improved electric heating tube according to claim 1, characterized in that: An L-shaped limiting plate (205) is fixedly connected to the inner wall of the water outlet pipe (201). One side of the L-shaped limiting plate (205) is in contact with the surface of the blade (206). A second connecting plate (210) is provided on the left side of the blade (206). A first mounting groove (212) is opened through the left side of the second connecting plate (210). The groove wall of the first mounting groove (212) is slidably connected to the surface of the first limiting plate (209). A connecting hole (211) is opened through the left side of the second connecting plate (210). A screw (208) is fixedly connected to the left end of the first rotating rod (217). A second rotating rod (215) is fixedly connected to the left end of the screw (208). The surface of the screw (208) is threadedly connected to the wall of the connecting hole (211). The inner wall of the fixing ring (107) is slidably connected to the surface of the sealing plug (202).

3. The improved electric heating tube according to claim 2, characterized in that: The number of blades (206) is twelve, and the twelve blades (206) are arranged in a ring array. The number of L-shaped limiting plates (205) is twelve, and the twelve L-shaped limiting plates (205) are arranged in a ring array.

4. The improved electric heating tube according to claim 1, characterized in that: The right side of the fixing ring (107) is provided with a second mounting groove (108), the groove wall of the second mounting groove (108) is slidably connected to the surface of the water outlet pipe (201), the right side of the fixing ring (107) is fixedly connected with a connecting frame (109), and the surface of the water outlet pipe (201) is fixedly connected with a fixing block (203).

5. An improved electric heating tube according to claim 4, characterized in that: The outer side of the fixing block (203) is provided with a receiving groove (204), and the inner wall of the connecting frame (109) is fixedly connected with a ball (105). The groove wall of the receiving groove (204) matches the surface of the ball (105). There are four connecting frames (109) and four balls (105). The four connecting frames (109) and four balls (105) are arranged in a ring array.

6. An improved electric heating tube according to claim 2, characterized in that: The second connecting plate (210) is fixedly connected to the upper, lower, front and rear four sides of the third connecting plate (207). The outer end of the third connecting plate (207) is fixedly connected to the second limiting plate (214). The outer side of the second limiting plate (214) is fixedly connected to the third limiting plate (213). The outer side of the third limiting plate (213) is slidably connected to the inner wall of the water outlet pipe (201). The left side of the third limiting plate (213) is fixedly connected to the right side of the sealing plug (202).

7. An improved electric heating tube according to claim 6, characterized in that: There are four of each of the second limiting plate (214) and the third limiting plate (213), and the four second limiting plates (214) and the third limiting plate (213) are arranged in a ring array.

8. An improved electric heating tube according to claim 1, characterized in that: The water pipe component (2) is located on the right side of the heating component (1). The inner wall of the inner tube (104) is fixedly connected with an impeller (106). The outer wall of the inner tube (104) is fixedly sleeved with a resistance wire (103). The surface of the resistance wire (103) is fixedly sleeved with a quartz glass tube (102). The surface of the quartz glass tube (102) is fixedly sleeved with an outer sleeve (101).

9. An improved electric heating tube according to claim 8, characterized in that: The inner tube (104) is made of high-temperature resistant ceramic material, the diameter of the inner tube (104) is 15mm, the length of the inner tube (104) is 200mm, the resistance wire (103) is made of nickel-chromium alloy wire, the diameter of the resistance wire (103) is 0.5mm, the diameter of the quartz glass tube (102) is 20mm, the length of the quartz glass tube (102) is 205mm, the outer jacket (101) is made of 304 stainless steel, the thickness of the outer jacket (101) is 1mm, and the length of the outer jacket (101) is 220mm.

10. An improved electric heating tube according to claim 8, characterized in that: A water heater is installed on the left side of the inner tube (104).

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