Combined convection tube bundle radiator

Abstract

The present invention discloses a combined convection tube bundle radiator, which belongs to the technical field of water heating equipment. It includes an exhaust valve, a water inlet and a water outlet, wherein a plurality of upper header live joints are provided at the lower end of the upper header, a plurality of lower header live joints are provided at the upper end matching position of the lower header, a convection tube is provided between the upper header live joint and the lower header live joint, the upper header, the lower header and the convection tube constitute a closed fluid channel, the convection tube is hot-melted with the live joint through a hot-melt pipe clamp, the two ends of the convection tube are connected and fixed with the upper header live joint on the upper header and the lower header on the lower header through their own live joint nuts, each convection tube is inserted into the hole of the orifice plate, and the orifice plate is provided at the middle position between the upper header and the lower header. It has the characteristics of corrosion resistance, long service life and high heat dissipation efficiency of the radiator, and has the functions of group disassembly, cleaning and replacement, can be disassembled and cleaned at any time, and is easy to maintain.

Description

Technical Field

[0001] The invention relates to a radiator, in particular to a combined convection tube bundle radiator, which belongs to the technical field of water heating equipment. Background Art

[0002] Currently, radiators of various specifications and models are all formed by metal casting or welding. Most radiators contain heat carrier water inside and then conduct heat to the outside through the metal wall.

[0003] The working environment of the radiator is quite special. It not only has to withstand the pressure from the internal liquid carrier water, but also has to be affected by the constantly changing temperature of the liquid carrier water. The water enclosed in the circulation system is transported through the pipe to the radiator for heat dissipation and work, and then returned to the heater for heating through the pipe. The continuous heating and pressurization changes the pH value of the water, and also creates conditions for the precipitation of heavy metal salts in the water. The increase in acidity accelerates the corrosion rate of the metal and reduces the service life of the metal structure radiator. After precipitation, the heavy metal salts adhere to the metal surface and form scale. The scale has a strong heat resistance, which seriously affects heat conduction and reduces the heat dissipation efficiency of the metal radiator. The silt and detached iron oxide in the circulating water are deposited in the radiator, affecting the water flow and reducing the heat dissipation effect.

[0004] Among the various types of radiators currently available, there has never been a radiator that is mainly made of non-metallic parts and assembled in a molded manner, and there is no radiator that can be repeatedly disassembled and cleaned under normal environments and conditions. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a combined convection tube bundle radiator, which has the characteristics of corrosion resistance, long service life and high heat dissipation efficiency, can be decomposed and cleaned at any time to remove mud and dirt deposited in the radiator, and is easy to maintain.

[0006] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0007] A combined convection tube bundle radiator comprises an exhaust valve, a water inlet and a water outlet, wherein a plurality of upper header live joints are provided at the lower end of an upper header, a plurality of lower header live joints are provided at a matching position at the upper end of a lower header, a convection tube is provided between the upper header live joint and the lower header live joint, the upper header, the lower header and the convection tube form a closed fluid passage, the convection tube is hot-melted together with the live joint through a hot-melt pipe clamp, both ends of the convection tube are connected and fixed to the upper header live joint on the upper header and the lower header live joint on the lower header through respective live joint nuts, each convection tube is inserted into the hole of an orifice plate, and the orifice plate is provided in the middle position between the upper header and the lower header.

[0008] Preferably, an exhaust valve is provided on each side of the upper header.

[0009] Preferably, a water inlet and a water outlet are provided on both sides of the lower header.

[0010] Preferably, the convection tube, the upper header, the lower header and the orifice plate are arranged in the outer cover.

[0011] Preferably, the structure of the outer cover is as follows: the upper ends of the front cover plate and the rear cover plate are connected by a connecting cross plate, side plates are provided on both sides of the front cover plate and the rear cover plate, upper and lower slots are reserved on the side plates, and the front cover plate and the rear cover plate are fastened together and fixedly connected by bolts.

[0012] Preferably, the outer cover is made of PE-TR or metal material, and the front cover plate, side plates, rear cover plate and the connecting cross plate at the upper end are an integrated structure.

[0013] Preferably, a sealing gasket is provided at the position of the flexible joint in the flexible nut.

[0014] Preferably, the upper header and the lower header are made of PE-TR or metal material.

[0015] Preferably, the hot-melt pipe clamp and the convection pipe are made of PE-TR material.

[0016] Due to the adoption of the above technical solution, the present invention has the following advantages and effects:

[0017] A group or a piece of radiator of the present invention can be prefabricated into several groups and then assembled and formed, so that it can be decomposed and cleaned at any time during use to remove the mud and dirt deposited in the radiator, and the decomposition and cleaning operation is simple, saving labor and effort. The present invention connects plastic pipes that can withstand a certain pressure and a certain heat conduction capacity with plastic pipes or corrosion-resistant metal pipes. Small-diameter plastic pipes are installed in a bundle form on the upper and lower headers as convection tube bundles to form the heat dissipation body of the radiator. The header with a relatively large diameter has the function of connecting the tube bundle and allows cold and hot water to pass through the radiator. Multiple groups of convection tube bundle radiators do not have rising pipes and downcomers. Hot water enters from one end of the header port. Under a certain pressure, hot water rises to the upper header through the tube bundle. During this period, the water near the tube wall drops in temperature during the process of preferential heat dissipation. After the specific gravity increases, it descends along the inner wall of the tube to the lower header, and then flows out from the other end of the lower header into the pipeline. Whether it is installed vertically or horizontally, the working principle is basically the same. The radiator of the present invention has the characteristics of corrosion resistance, long service life and high heat dissipation efficiency, and in particular has the unique functions of group disassembly, cleaning and replacement.

[0018] The radiator of the present invention is assembled from several components and parts, and has the characteristics of simple processing and manufacturing process, saving raw materials, light weight, convenient transportation and installation, and has good corrosion resistance and can be repeatedly disassembled and cleaned. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0020] Figure 1 It is a main structural schematic diagram of the present invention.

[0021] Figure 2 yes Figure 1 Schematic diagram of the cross-sectional structure along the A-A direction.

[0022] Figure 3 It is a structural diagram of the orifice plate.

[0023] Figure 4 It is a schematic diagram of the side structure of the outer cover.

[0024] In the figure, 1, outer cover, 2, upper header, 3, exhaust valve, 4, upper header union thread, 5, union nut, 6, sealing gasket, 7, union joint, 8, hot-melt pipe clamp, 9, convection pipe, 10, orifice plate, 11, lower header union thread, 12, lower header, 13, water inlet, 14, water outlet, 15, front cover plate, 16, rear cover plate, 17, connecting cross plate, 18, side plate, 19, upper slot, 20, lower slot. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention. It should be noted that the words "front", "back", "left", "right", "upper" and "lower" used in the following description refer to the directions in the drawings, and the words "lower end" and "upper end", "inside" and "outside" refer to the direction toward or away from the geometric center of a specific component, respectively.

[0026] like Figure 1 , Figure 2 and Figure 3As shown, the combined convection tube bundle radiator of the present invention has the following structure: a plurality of upper header 2 live joints 4 are provided at the lower end of the upper header 2, a plurality of lower header 11 live joints 11 are provided at the upper end of the lower header 12, a convection tube 9 is provided between the upper header 4 live joints 11 and the lower header 12, the upper header 2, the lower header 12 and the convection tube 9 form a closed fluid passage, the convection tube 9 is heat-fused together with the live joint 7 through a hot-melt pipe clamp 8, and the two ends of the convection tube 9 are connected to the upper header 2 through respective live joint nuts 5. The upper header 4 on the box 2 and the lower header 11 on the lower header 12 are connected and fixed, a sealing gasket 6 is provided at the position of the flexible joint 7 in the union nut 5, each convection tube 9 is inserted into the hole of the orifice plate 10, and the orifice plate 10 is arranged at the middle position between the upper header 2 and the lower header 12, an exhaust valve 3 is provided on each side of the upper header 2, and a water inlet 13 and a water outlet 14 are provided on both sides of the lower header 12, and the convection tube 9, the upper header 2, the lower header 12 and the orifice plate 10 are arranged in the outer cover 1.

[0027] like Figure 4 The structure of the outer cover 1 shown is as follows: the upper ends of the front cover plate 15 and the rear cover plate 16 are connected by a connecting cross plate 17, and side plates 18 are provided on both sides of the front cover plate 15. The side plates 18 have upper card slots 19 and lower card slots 20 reserved thereon. The front cover plate 15 and the rear cover plate 16 are fastened together and fixedly connected by bolts to form a cover structure.

[0028] The outer cover 1 is made of PE-TR or metal material, and the front cover plate 15, the side plate 18, the rear cover plate 16 and the upper connecting cross plate 17 are an integrated structure. The outer cover has a decorative function and also has the function of supporting the radiator assembly header to ensure that the convection tube is less deformed when heated.

[0029] The upper header 2 and the lower header 12 are made of PE-TR or metal materials.

[0030] The above-mentioned hot-melt pipe clamp 8 and convection pipe 9 are made of PE-TR material.

[0031] The preparation method of the present invention is as follows: first, an upper header 2 and a lower header 12 with a certain number of flexible joints 4 and 11 are processed and manufactured; a certain number of convection tubes 9 are prefabricated, and hot-melt pipe clamps 8 and flexible joint nuts 5, sealing gaskets 6, and flexible joints 7 are prepared; an orifice plate 10 symmetrical to the specifications of the radiator is prefabricated; the orifice plate 10 is a plate structure with through holes, and the opening position matches the insertion position of the convection tube 9, and the orifice plate 10 plays a role in controlling the deformation of the convection tube; an outer cover 1 symmetrical to the specifications of the radiator is prefabricated, and an air release valve 3 is prepared. Insert the convection tube 9 into the hole of the orifice plate 10, use the pipe clamp 8 to heat-melt the joint 7 and the convection tube 9 together, and then fix the joint nuts 5 and sealing gaskets 6 at both ends of the convection tube 9 with the orifice plate 10 to the joint thread heads 4 on the upper header 2 and the joint thread heads 11 on the lower header 12 to form the main body of the radiator, adjust the position of the orifice plate 10 in the radiator, fix the radiator cover 1 to the outside of the radiator, and install the exhaust valve 3 on the upper header to form a complete radiator. The radiator can be directly made into a single piece and assembled into a group of multiple pieces according to needs, or it can be made into a multi-piece integrated radiator at one time.

[0032] The working principle of the present invention is as follows:

[0033] Connect the hot water pipe to the water inlet and outlet on the lower header 12 of the radiator. The hot water enters the radiator under pressure. The water near the inner wall of the convection tube 9 loses heat first. According to the rule that "the temperature of the same volume of water is inversely proportional to the specific gravity", the water with high specific gravity under the same pressure begins to descend along the tube wall and returns to the lower part of the lower header 12. The hot water in the central area of ​​the convection tube 9 without heat loss continues to rise, thus forming a phenomenon in which pressure circulation and gravity circulation coexist under the same pressure conditions. The water around each tube wall of the convection tube bundle 9 dissipates heat outward and descends. The hot water in the center of the plastic tube rises to supplement the descending water volume, realizing a continuous heat dissipation process. Take off the mask and disassemble the union nut 5 to complete the disassembly. Each convection tube and the header with a thread head can be disassembled repeatedly, which is conducive to cleaning the mud and sediment in the convection tube bundle and the header, and convenient maintenance.

[0034] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "setting" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention are understood according to the specific circumstances. In the description of this specification, the description of the reference terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0035] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0036] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A combined convection tube bundle radiator, comprising an exhaust valve (3), a water inlet (13) and a water outlet (14), characterized in that The lower end of the upper header (2) is provided with a plurality of upper header live joints (4), and the upper end of the lower header (12) is provided with a plurality of lower header live joints (11) at a matching position. A convection tube (9) is arranged between the upper header live joints (4) and the lower header live joints (11). The upper header (2), the lower header (12) and the convection tube (9) form a closed fluid passage. The convection tube (9) is heat-fused together with the live joint (7) through a hot-melt pipe clamp (8). Both ends of the convection tube (9) are connected and fixed to the upper header live joints (4) on the upper header (2) and the lower header live joints (11) on the lower header (12) through respective live joint nuts (5). Each convection tube (9) is inserted into a hole of an orifice plate (10), and the orifice plate (10) is arranged between the upper header (2) and the lower header (12). The convection pipe (9), the upper header (2), the lower header (12) and the orifice plate (10) are arranged in the outer cover (1); the structure of the outer cover (1) is as follows: the upper ends of the front cover plate (15) and the rear cover plate (16) are connected by a connecting cross plate (17); the front cover plate (15) and the rear cover plate (16) are provided with side plates (18) on both sides; the side plates (18) are reserved with upper grooves (19) and lower grooves (20); the front cover plate (15) and the rear cover plate (16) are fastened and connected by bolts; an exhaust valve (3) is provided on each side of the upper header (2); a water inlet (13) and a water outlet (14) are provided on both sides of the lower header (12); and a sealing gasket (6) is provided at the position of the flexible joint (7) in the flexible nut (5).

2. The combined convection tube bundle radiator according to claim 1, characterized in that The outer cover (1) is made of PE-RT or metal material, and the front cover plate (15), the side plates (18), the rear cover plate (16) and the upper connecting transverse plate (17) are an integrated structure.

3. The combined convection tube bundle radiator according to claim 1 is characterized in that The upper header (2) and the lower header (12) are made of PE-RT or metal material.

4. The combined convection tube bundle radiator according to claim 1 is characterized in that The hot-melt pipe clamp (8) and the convection pipe (9) are made of PE-RT material.

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