Efficient steam heating pipe

Abstract

A high-efficiency steam heating pipe comprises heating pipe bodies and water pipes, the heating pipe bodies and the water pipes are parallel to each other and are provided with contact surfaces, radiating fins are evenly distributed on the heating pipe bodies and the water pipes and are perpendicular to the heating pipe bodies, a pair of holes are formed in the surfaces of the water pipes and penetrate through the heating pipe bodies, the water pipes and the heating pipe bodies, and the water pipes extend in parallel in the length direction. One to two kick temperature controllers are mounted on a radiating fin in the middle of the heating pipe body; the kick temperature controller is a temperature sensitive device. The heating pipe body and the water pipe are provided with contact surfaces, and the contact surfaces of the heating pipe body and the water pipe are planes. The kick temperature controller adopts a disc-shaped or disc-shaped bimetallic material as a temperature sensing element. The device is used for timely measuring the temperature of water and gas.

Description

Technical Field

[0001] This utility model relates to the field of heating element technology, specifically to a highly efficient element for simultaneously heating hot water and airflow. Background Technology

[0002] There are two basic types of heating element components: one is a PTC ceramic heating element housed within a metal tube; the other is a seamless metal tube containing a heating wire, filled with thermally conductive and insulating ceramic powder, and then processed into various shapes required by the user, such as tubes with circular or square cross-sections, with variable dimensions and diameters. The metal tube can be made of iron, aluminum, copper, or thin-walled stainless steel. Heating elements are small in size, high in power, have a fast thermal response, are easy to temperature control, and have relatively high overall thermal efficiency. Currently, this type of device is suitable for hot water generation and various other applications, including in applications such as sweepers, floor scrubbers, and even ironing equipment. These devices require the simultaneous generation of hot air and hot water and feature high thermal efficiency, long service life, easy installation, and safety and reliability. However, existing heating elements that simultaneously heat water and steam need further improvements in efficiency and size reduction.

[0003] CN202022807961.7 discloses a novel electrode heating structure and an air conditioning PTC heater, including electrode plates, heating elements, dummy plates, insulating paper, and an aluminum tube. Two electrode plates are respectively attached to the front and back of the heating element and the dummy plate. Each electrode plate includes a full-width electrode segment and a non-full-width electrode segment, with the width of the non-full-width electrode segment being smaller than the width of the full-width electrode segment. The insulating paper is wrapped around the electrode plates, heating elements, and dummy plate and pressed tightly by the aluminum tube. By setting the electrode plates to different widths, the gap between the electrode plates and the aluminum tube at the dummy plate is increased, eliminating factors that cause a siphon effect and greatly reducing the amount of water vapor entering the gap formed between the aluminum tube and the electrode plates and heating elements. Utility Model Content

[0004] The purpose of this invention is to provide a heating tube with high thermal efficiency and long service life for water-gas co-heating, so as to solve the problems of improving service life and thermal efficiency in the prior art.

[0005] The technical solution of this utility model is a high-efficiency water-gas heating tube, comprising a heating tube body and a water pipe. The heating tube body and the water pipe are parallel to each other and have a contact surface. Heat sinks are evenly distributed on the heating tube body and the water pipe, perpendicular to the heating tube body and the water pipe, and each fin has a pair of holes that pass through the heating tube body and the water pipe. The heating tube body and the water pipe extend parallel to each other along their length. One or two snap-action thermostats are installed on the heat sinks in the middle of the heating tube body; the snap-action thermostats are temperature-sensitive devices. The contact surface between the heating tube body and the water pipe is planar. The snap-action thermostats use a disc-shaped or circular bimetallic material as the temperature sensing element. This is used to measure the temperature of water and gas in a timely manner.

[0006] The beneficial effects of this invention are: it can conveniently and quickly heat water in water pipes, and the PCT heating element, which uses a heat sink to heat air, can employ a more mature device, making it suitable for simultaneous water and air heating devices of different specifications, thus enhancing its versatility and practicality; in particular, the use of disc-shaped or circular bimetallic materials as temperature sensing elements provides more direct temperature detection. The PCT heating element does not require a snap-action temperature controller; for example, if the Curie temperature of the PCT device is set at 100-110℃. This invention is especially applicable to simultaneous water and air heating devices for sweepers and floor scrubbers. Attached Figure Description

[0007] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0008] Figure 2 This is a plan view of the present invention;

[0009] In the diagram: 1. Heating element body; 2. Water pipe; 3. Trigger thermostat; 4. Heat sink. The arrows indicate the direction of airflow. Detailed Implementation

[0010] 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.

[0011] A high-efficiency water-gas heating element includes a heating element body and water pipes. The heating element body and water pipes are parallel to each other and have contact surfaces. Heat sinks are evenly distributed on the heating element body and water pipes, perpendicular to the heating element body and water pipes, and each fin has a pair of holes that pass through the heating element body and water pipes. The heating element body and water pipes extend parallel to each other along their length. One or two snap-action thermostats are installed on the heat sinks in the middle of the heating element body; the snap-action thermostats are temperature-sensitive devices. The contact surfaces on the heating element body and water pipes are planar. The snap-action thermostats use disc-shaped or circular bimetallic materials as temperature sensing elements. This is used to measure the temperature of water and gas in a timely manner.

[0012] The contact point between the heating element and the water pipe forms a flat surface. One or two snap-action thermostats are installed on the heat sink in the middle of the heating element. The snap-action thermostat is a temperature-sensitive device, using a disc-shaped or circular bimetallic material as the temperature sensing element. It is used to measure the temperature of water and gas in a timely manner.

[0013] There are two types of heating element bodies. One is a PTC heating ceramic element housed within a metal rectangular tube. The PTC Curie point temperature control works by controlling the resistance of the PTC ceramic material around its Curie point temperature (a preset threshold). Below the Curie point, the resistance decreases with increasing temperature, the current increases, and the heating rate accelerates. Above the Curie point, the resistance rises sharply, the current decreases, and the heat output automatically decreases, achieving temperature self-limitation. The Curie point temperature is determined by the material formulation and can be customized to meet specific requirements.

[0014] The heating element body consists of a PTC heating ceramic housed within a metal rectangular tube. Metal electrodes are located on the upper and lower surfaces of the PTC heating ceramic, with an insulator (typically mica sheets) separating the metal electrodes from the metal rectangular tube. Another heating element body is constructed by inserting a heating wire into a seamless metal tube, filling it with thermally conductive and insulating ceramic powder, and then processing it into various shapes required by the user, such as circular or square tubes. The size and diameter are variable, and the heating power can range from 1-5KW as needed. The metal tube can be made of iron, aluminum, copper, or thin-walled stainless steel. These heating elements are small in size, have high power, fast thermal response, are easy to temperature control, and offer relatively high overall thermal efficiency.

[0015] The heat sink can be a densely and parallel array of aluminum sheets perpendicular to the heating element and water pipes; alternatively, a corrugated heat sink can be used, with holes evenly distributed on two cross-sections at different heights, through which a pair of water pipes and the heating element extend parallel to each other in the horizontal direction. The cross-section of the corrugated heat sink is a square wave or an arc shape with periodic distribution, and the tops of the square waves or arcs are on a single plane. The surface of the corrugated heat sink is perpendicular to the horizontal plane. The measurement principle of the snap-action temperature control switch is based on the thermal deformation effect of a bimetallic strip. Temperature sensing element: A disc-shaped or circular bimetallic material is used as the temperature sensing element. The bimetallic strip is made of two metal layers with different coefficients of thermal expansion laminated together. When heated, the difference in expansion causes deformation, triggering an action: when the temperature reaches a set threshold, the bimetallic strip undergoes a snap-action deformation, which, through a mechanical structure (such as an actuating rod), pushes the contacts to quickly open or close the circuit.

[0016] The bimetallic strip is made of two (bi)metal layers with different coefficients of thermal expansion. When heated, the difference in expansion causes deformation and triggers the action: when the temperature reaches a set threshold, the bimetallic strip undergoes a sudden deformation, which pushes the contacts to quickly disconnect or connect the circuit through a mechanical structure (directly or with an actuating rod).

[0017] An airflow perpendicular to the water pipe (heating pipe body) is provided, which blows onto the heat sink to expel hot air.

[0018] The above content is only used to illustrate the technical solution of this utility model, and is not intended to limit the scope of protection of this utility model. Simple modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model do not depart from the essence and scope of the technical solution of this utility model.

Claims

1. A high-efficiency water-gas heating tube, characterized in that, It includes a heating element body and a water pipe. The heating element body and the water pipe are parallel to each other and have a contact surface. Heat sinks are evenly distributed on the heating element body and the water pipe, perpendicular to the heating element body and the water pipe, and a pair of holes are provided on the surface and pass through the heating element body and the water pipe. The heating element body and the water pipe extend parallel to each other in the length direction.

2. The high-efficiency water-gas heating tube according to claim 1, characterized in that, The heating element body and the water pipe have contact surfaces, and the contact surfaces of the heating element body and the water pipe are flat.

3. The high-efficiency water-gas heating tube according to claim 1, characterized in that, One or two snap-action thermostats are installed on the heat sink in the middle of the heating element body; the snap-action thermostat is a temperature-sensitive device; the snap-action thermostat uses a disc-shaped or circular bimetallic material as the temperature sensing element to measure the temperature of water and gas in a timely manner.

4. The high-efficiency water-gas heating tube according to claim 1, characterized in that, The heat sink has a cross-section consisting of square or arc-shaped aluminum sheets with periodic distribution, and the tops of the square or arc shapes are on a plane.

5. The high-efficiency water-gas heating tube according to claim 1, characterized in that, The heating element body is a PTC heating ceramic housed inside a metal rectangular tube; the metal electrodes are located on the upper and lower surfaces of the PTC heating ceramic, and there is an insulator between the metal electrodes and the metal rectangular tube.

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