Constant-temperature heat exchange pipeline

Abstract

The utility model relates to a constant-temperature heat exchange pipeline which comprises a heat exchanger and a plurality of heat exchange pipes communicated with the heat exchanger, a plurality of heat exchange pieces are inserted into the outer sides of the heat exchange pipes at equal intervals, spiral grooves are formed in the outer walls of the heat exchange pipes, a plurality of threaded holes are formed in the grooves at equal intervals, and plug columns are arranged in the threaded holes. The heat exchange pieces are formed by splicing upper heat exchange pieces and lower heat exchange pieces, the upper heat exchange pieces and the lower heat exchange pieces are inserted into the spiral grooves, overflow grooves are formed in the end faces, close to each other, of the upper heat exchange pieces and the lower heat exchange pieces, and a plurality of channels communicated with the overflow grooves are formed in the upper heat exchange pieces and the lower heat exchange pieces. Extending edges corresponding to the outer walls of the heat exchange tubes are arranged on the outer walls of the upper heat exchange sheets and the lower heat exchange sheets, sealing rings attached to the outer walls of the heat exchange tubes are arranged on the extending edges, clamping grooves are formed in the extending edges, and clamping springs are arranged in the clamping grooves. By the adoption of the technical scheme, rapid laying of the pipeline can be achieved, only heat exchange pieces need to be additionally arranged at needed positions in the later period, and the manufacturing cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchange, in particular to a constant temperature heat exchange pipeline. Background Art

[0002] In the prior art, when a high-temperature medium exchanges heat with a low-temperature medium, the required heat exchange area is relatively small due to the high heat exchange temperature and pressure. For reasons such as the convenience of manufacturing and maintenance, it is generally not considered how to increase the heat exchange area in a limited space. Therefore, most of the heat exchange tubes with a bare inner wall are used. In the existing economizers, radiators, etc., the medium flowing in the tube is water, which has a large heat exchange coefficient; the outside of the tube is flue gas and air, which has a small heat exchange coefficient. Therefore, fins are arranged on the outer wall of the tube to increase the heat exchange area outside the tube, which can achieve a good heat exchange effect. For heat exchangers such as air preheaters, the media inside and outside the tube are both gas, and the heat exchange coefficient is small, so it is necessary to increase the heat exchange area to achieve a better heat exchange effect. However, because the size layout of each site is inconsistent, actual measurement and manufacturing are required. This step greatly wastes productivity. If the heat exchange fins are spliced ​​and fixed on the outer wall of the pipeline, the heat exchange efficiency is not very excellent, so there is an urgent need for a spliced ​​heat exchange pipeline with good heat exchange performance. Utility Model Content

[0003] The utility model aims to provide a constant temperature heat exchange pipeline to solve the problems existing in the above-mentioned prior art.

[0004] The above technical objectives of the utility model are achieved through the following technical solutions:

[0005] A constant temperature heat exchange pipeline comprises a heat exchanger and a plurality of heat exchange tubes connected with the heat exchanger, the outer sides of the heat exchange tubes are equidistantly inserted with a plurality of heat exchange fins, the outer walls of the heat exchange tubes are provided with spiral grooves, a plurality of threaded holes are equidistantly arranged in the grooves, and plugs are arranged in the threaded holes, the heat exchange fins are composed of an upper heat exchange fin and a lower heat exchange fin spliced ​​together, the upper heat exchange fin and the lower heat exchange fin are both inserted in the spiral grooves, overflow grooves are arranged on the end surfaces of the upper heat exchange fin and the lower heat exchange fin close to each other, a plurality of channels connected with the overflow grooves are arranged inside the upper heat exchange fin and the lower heat exchange fin, the outer walls of the upper heat exchange fin and the lower heat exchange fin are both provided with extensions corresponding to the outer walls of the heat exchange tubes, the extensions are provided with sealing rings that fit the outer walls of the heat exchange tubes, the extensions are provided with clamping grooves, and the clamping grooves are provided with retaining springs.

[0006] By adopting the above technical solution, the pipeline can be laid quickly, and heat exchange plates can be added at the required position at a later stage, thereby reducing the manufacturing cost. The length and size of the heat exchange pipeline are unified, and there is no need for special production for special site layout. Because the heat exchange plates are easy to install, the production cost of the heat exchange tube is reduced.

[0007] In a further embodiment, a positioning column is provided inside the overflow groove of the lower heat exchange plate, an axial hole is provided at the center of the positioning column, and the axial hole is communicated with the overflow groove.

[0008] In a further embodiment, one end of the heat exchange tube is provided with a thermal insulation layer, the thermal insulation layer is wrapped around the heat exchange pipe, a sealing film made of polyethylene material is provided inside the thermal insulation layer, the sealing film is bonded and fixed to the thermal insulation layer, and the edge of the sealing film is bonded with double-sided tape.

[0009] By adopting the above technical solution, the sealing film can prevent slight air leakage of some plugs, and then isolate the temperature through the thermal insulation layer, which greatly facilitates the installation of the pipeline.

[0010] In a further embodiment, a guide plate is provided inside the heat exchange tube.

[0011] In a further embodiment, a guide groove is provided on the surface of the upper heat exchange fin.

[0012] In a further embodiment, a plurality of baffles are arranged at equal intervals inside the overflow groove of the lower heat exchanger plate, and the baffles are provided with densely distributed through holes.

[0013] In summary, the utility model has the following beneficial effects:

[0014] 1. By inserting multiple heat exchange fins at equal intervals on the outside of the heat exchange tube, the pipeline can be quickly laid. Heat exchange fins can be added at the required position later, which reduces the manufacturing cost. The length and size of the heat exchange tube are unified, and there is no need for special production for special site layout. Because it is easy to install heat exchange fins, the production cost of the heat exchange tube is reduced;

[0015] 2. The thermal insulation layer is wound around the heat exchange pipe, and a sealing film made of polyethylene material is arranged inside the thermal insulation layer. The sealing film can prevent slight air leakage of some plugs, and then the temperature is isolated by the thermal insulation layer, which greatly facilitates the installation of the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the use state of the thermal insulation layer of the utility model being wound around the surface of the heat exchange tube.

[0018] In the figure, 1, heat exchanger; 2, heat exchange tube; 3, heat exchange fin; 31, upper heat exchange fin; 32, lower heat exchange fin; 4, extension; 5, positioning column; 6, baffle. DETAILED DESCRIPTION

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

[0020] The same parts are denoted by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the attached Figure 1 In the description of this specification, the words "bottom" and "top", "inside" and "outside" refer to directions toward or away from a particular component geometry, respectively. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this specification, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0021] Embodiment 1:

[0022] like Figure 1-2 As shown, a constant temperature heat exchange pipeline includes a heat exchanger 1 and a plurality of heat exchange tubes 2 connected to the heat exchanger 1, a plurality of heat exchange plates 3 are inserted at equal intervals on the outer side of the heat exchange tube 2, a spiral groove is provided on the outer wall of the heat exchange tube, a plurality of threaded holes are provided at equal intervals in the groove, a plug is provided in the threaded hole, the heat exchange plate 3 is composed of an upper heat exchange plate 31 and a lower heat exchange plate 32, the upper heat exchange plate 31 and the lower heat exchange plate 32 are both inserted in the spiral groove, overflow grooves are provided on the end surfaces of the upper heat exchange plate 31 and the lower heat exchange plate 32 close to each other, a plurality of channels connected to the overflow grooves are provided inside the upper heat exchange plate 31 and the lower heat exchange plate 32, the outer walls of the upper heat exchange plate 31 and the lower heat exchange plate 32 are both provided with an extension 4 corresponding to the outer wall of the heat exchange tube 2, a sealing ring is provided on the extension 4 to fit the outer wall of the heat exchange tube 2, a clamping groove is provided on the extension 4, a retaining spring is provided in the clamping groove, and the lower heat exchange plate 32 is provided with a plurality of channels connected to the overflow groove. A positioning column 5 is provided inside the overflow groove, and an axial hole is provided at the center of the positioning column 5. The axial hole is connected to the overflow groove, so that each heat exchange plate 3 can be installed on the heat exchange tube at equal intervals. A thermal insulation layer is provided at one end of the heat exchange tube 2, and the thermal insulation layer is wrapped around the heat exchange tube 2. A sealing film made of polyethylene material is provided inside the thermal insulation layer. The sealing film is bonded and fixed to the thermal insulation layer, and double-sided tape is bonded to the edge of the sealing film. Heat exchange plate 2 is provided in the part where the heat exchange tube needs to be used, and the part where the heat exchange tube does not need to be used is sealed by the thermal insulation layer. When installing the heat exchange plate 2, the plug at the corresponding position needs to be removed first. The gas inside the heat exchange tube will overflow when passing through the threaded hole after the plug is removed. At this time, the gas enters the overflow groove inside the heat exchange plate, and finally enters the channel, so as to realize large-area heat exchange of the heat exchange plate, and realize heat exchange with the environment through the heat exchange plate 2.

[0023] like Figure 1-2 As shown, the interior of the heat exchange tube is provided with a guide plate to guide the gas to flow quickly for efficient heat exchange. The surface of the upper heat exchange plate 31 is provided with a guide groove to guide the gas outside the heat exchange plate to move faster from top to bottom. A plurality of baffles 6 are evenly spaced inside the overflow groove of the lower heat exchange plate 32. The baffles 6 are provided with dense through holes to form some obstructions in the overflow groove to prevent the gas inside the channel from being blocked and unable to be exchanged.

[0024] Specific implementation process: by inserting multiple heat exchange plates at equal intervals on the outside of the heat exchange tube, the pipeline can be quickly laid, and heat exchange plates can be added at the required position later, which reduces the manufacturing cost. The length and size of the heat exchange tube are unified, and there is no need for special production for special site layout. Since the heat exchange plates are easy to install, the production cost of the heat exchange tube is reduced. The insulation layer is wrapped around the heat exchange tube, and a sealing film composed of polyethylene material is arranged inside the insulation layer. The sealing film can prevent slight air leakage of some plugs, and then the temperature is isolated by the insulation layer, which greatly facilitates the installation of the pipeline.

[0025] In the embodiments disclosed in the present invention, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "connect" can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in the embodiments disclosed in the present invention can be understood according to specific circumstances.

[0026] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A constant temperature heat exchange pipeline, characterized in that: The invention comprises a heat exchanger (1) and a plurality of heat exchange tubes (2) connected to the heat exchanger (1); a plurality of heat exchange fins (3) are inserted at equal intervals on the outer side of the heat exchange tube (2); a spiral groove is arranged on the outer wall of the heat exchange tube (2); a plurality of threaded holes are arranged at equal intervals in the groove; a plug is arranged in the threaded hole; the heat exchange fin (3) is composed of an upper heat exchange fin (31) and a lower heat exchange fin (32); the upper heat exchange fin (31) and the lower heat exchange fin (32) are both inserted in the spiral groove; the upper heat exchange fin (31) and the lower heat exchange fin (32) are respectively inserted in the spiral groove; and ... Overflow grooves are arranged on the end surfaces of the upper heat exchange plate (31) and the lower heat exchange plate (32) that are close to each other. Multiple channels connected to the overflow grooves are arranged inside the upper heat exchange plate (31) and the lower heat exchange plate (32). The outer walls of the upper heat exchange plate (31) and the lower heat exchange plate (32) are arranged with extensions (4) corresponding to the outer walls of the heat exchange tube (2). The extensions (4) are arranged with sealing rings that fit the outer walls of the heat exchange tube (2). The extensions (4) are arranged with card slots, and a retaining spring is arranged in the card slots.

2. The constant temperature heat exchange pipe according to claim 1, characterized in that: A positioning column (5) is arranged inside the overflow groove of the lower heat exchange plate (32), and an axial hole is arranged at the center of the positioning column (5), and the axial hole is communicated with the overflow groove.

3. The constant temperature heat exchange pipe according to claim 1, characterized in that: One end of the heat exchange tube (2) is provided with a thermal insulation layer, the thermal insulation layer is wound around the heat exchange tube (2), a sealing film made of polyethylene material is provided inside the thermal insulation layer, the sealing film is bonded and fixed to the thermal insulation layer, and the edge of the sealing film is bonded with double-sided tape.

4. The constant temperature heat exchange pipe according to claim 1, characterized in that: A guide plate is arranged inside the heat exchange tube.

5. The constant temperature heat exchange pipe according to claim 1, characterized in that: The surface of the upper heat exchange fin (31) is provided with a guide groove.

6. The constant temperature heat exchange pipe according to claim 1, characterized in that: A plurality of baffles (6) are arranged at equal intervals inside the overflow groove of the lower heat exchange plate (32), and the baffles (6) are provided with densely distributed through holes.

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