CN217636892U - Plastic heat exchanger - Google Patents

Abstract

The utility model discloses a plastic heat exchanger, which comprises a main pipe and a capillary pipe, wherein the capillary pipe is connected on the main pipe, hot water flows in through the main pipe, is shunted to enter the capillary pipe communicated with the main pipe, flows in the capillary pipe, releases heat to the outside through the pipe wall of the capillary pipe, and finally flows out circularly through the main pipe after converging, the heat exchanger is arranged in a modularized way, and can be arranged in a modularized way according to the size of a heat exchange field required by floor heating; in use and maintenance, the damaged heat exchanger can be modularly replaced; by applying the technical scheme, the modular plastic heat exchanger is adopted for floor heating laying, so that the construction is convenient, the plastic material is pressure-resistant, temperature-resistant and corrosion-resistant, the service life is long, and the problems of corrosion caused by long-term use and trouble replacement in use and maintenance due to the adoption of the metal heat exchange tube can be effectively solved.

Description

Plastic heat exchanger

Technical Field

The utility model belongs to the technical field of indirect heating equipment, in particular to warms up, a plastic heat exchanger who uses.

Background

At present, in the ground heating market, metal heat exchange tubes are generally paved, and then floor tiles are paved on the surfaces of the metal heat exchange tubes. The paved room is heated in a natural heat exchange mode, and the room is used in a large scale in the Yangtze river delta area due to good use effect;

at present, floor heating pipelines in the market are paved by three methods, namely a folding type, a parallel type and a double parallel type; the folding type laying mode is that the whole heat exchange tube is adopted, the water supply section and the water return section of the heat exchange tube are bent into adjacent concentric circles or square shapes for laying, the ground temperature is balanced, and the folding type heat exchange tube is the most used laying mode for laying floor heating in the market; the parallel type laying mode is that the water supply section of the heat exchange pipe is laid in a parallel bending mode, the ground temperature is poor in balance, the temperature of the front end is higher than that of the tail end, after all, the water temperature is continuously reduced, the water temperature of the tail end of the pipeline is also lower and lower, and the parallel type heat exchange pipe is usually used for laying in places such as a small space or a toilet; the double-parallel laying mode is technically enhanced in a parallel laying method, namely the water supply section and the water return section of the heat exchange tube are adjacently and parallelly laid, so that the temperature balance can be greatly improved, and the temperature balance of the floor heating is improved. During actual construction, the three paving methods can be mixed and used in combination with the specific situation of a house type.

However, the above laying method generally adopts a mode of bending the whole heat exchange tube, and uses a long heat exchange tube, and at the same time, in order to improve the heat exchange efficiency of the heat exchange tube, generally uses a metal heat exchange tube, and often needs constructors to arrange the tube and the bent tube on the ground heating site, and the problems of low laying efficiency, high technical requirements on constructors, unstable connection, leakage and the like easily occur due to connection among the metal heat exchange tubes.

Meanwhile, after the heat exchange pipe is used for a period of time, leakage caused by corrosion and other problems also exists in the heat exchange pipe, floor tiles with a large area need to be pried, the damaged whole section of metal heat exchange pipe is replaced, construction is troublesome, residual water and outflow are more in the original metal heat exchange pipe in the replacement process, serious pollution can be caused to the environment, and the problems of same corrosivity, need of regular repeated replacement and the like also exist after the metal pipe is replaced again.

Disclosure of Invention

In order to solve the problem, the utility model discloses a modular plastic heat exchanger, but and the capillary elastic stretching sets up, through the concatenation extension between the modular plastic heat exchanger, be used for warm up to lay, one of which is convenient to be under construction, construction period is short, the efficiency of construction is high, metal heat exchange tube corrosion problem is also solved to its two, when its three change heat exchange tubes, only need to change the single module plastic heat exchanger of damage can, destroy lessly to the place, and because the remaining water yield of single module heat exchanger is less, the pollution to the environment when having alleviateed the change greatly.

The utility model discloses technical scheme does: the plastic heat exchanger is arranged in a modularized mode, and is divided into an A module and a B module, wherein the plastic heat exchanger module A is used for realizing splicing combination with the plastic heat exchanger module B in an inserting mode and performing modularized expansion; and the plastics heat exchanger that the modularization set up finally is used for according to the required heat transfer place size of ground heating, and the modularization combination is laid, and along capillary length direction, but the capillary elastic stretching sets up to and in the use maintenance, but the plastics heat exchanger of damage is changed to the modularization.

The modularized expansion setting can achieve the effects of low production cost, few interfaces, reliable construction quality and high construction efficiency.

Furthermore, the capillary tube is connected with the main tube and is in seamless fusion connection.

Seamless fusion connection can reach the effect that improves joint strength, reduces and reveals the rate, compressive strength is high.

Further, the capillary tube is arranged obliquely with respect to the main tube to be communicated.

The capillary tube is obliquely arranged, so that the effect of increasing the heat exchange area by prolonging the length of the capillary tube can be achieved, and the heat exchange efficiency is improved.

Further, the included angle of the capillary tube relative to the communicated main tube is 45 degrees.

The 45 degrees contained angles of capillary set up, can satisfy on the processing basis of being convenient for, reach the effect of preferred heat transfer.

Further, the main tube and the capillary material are polypropylene or polyethylene.

The material is easy to purchase, has certain elasticity, is convenient for low-cost processing, and can ensure better pressure resistance, temperature resistance and corrosion resistance use characteristics in a longer service cycle, thereby achieving the effects of high use reliability and greatly reducing the use and maintenance cost.

Furthermore, the main pipe and the capillary tube have the use pressure of 0.2-1.0 MPa and the use temperature of-20-60 ℃, and the inner walls of the main pipe and the capillary tube are frozen and expanded at low temperature along with hot water remained in the pipeline, so that the main pipe and the capillary tube are elastically expanded.

Above-mentioned pressure, temperature value can reach higher heat exchange efficiency effect, and the characteristic of capillary elasticity expansion can reach and avoid arranging unclean residual hot water, and the damage frost crack to the pipeline when freezing, the effect of reliably using is guaranteed to the revealing that leads to.

Furthermore, the outer surface of the capillary tube is also provided with a plastic heat exchange fin, and the plastic heat exchange fin is fused and fixed with the outer surface of the capillary tube.

Set up plastics heat transfer fin, can reach through increasing the heat-transfer surface, improve heat exchange efficiency's effect, simultaneously through and capillary fusion fixed mode, also can reach the effect that improves compressive strength.

Furthermore, the plastic heat exchange fin is wound around the outer wall of the capillary tube, and extends spirally along the length direction of the capillary tube, and the height dimension of the cross section of the plastic heat exchange fin is smaller than the outer diameter dimension of the main tube.

The plastics heat transfer fin heliciform extends the setting, not only reaches the effect of the processing of being convenient for, passes through the unsettled setting of capillary moreover, also can reach the air of being convenient for and flow the heat transfer around the capillary to reach the effect that improves heat exchange efficiency.

Furthermore, the outer diameter of the main pipe is phi 20mm, and the wall thickness is 2.0mm; the outer diameter of the capillary tube is phi 4.3mm, and the wall thickness is 0.8mm.

The capillary tube specification is set, so that the effects of facilitating purchase and processing and reducing the production cost can be achieved.

This technical scheme, through adopting modular plastic heat exchanger, but and capillary elastic stretch sets up for warm up and lay, can reach following effect at least:

1. the construction is convenient, the construction period is short, and the construction efficiency is high;

2. the problem that leakage is caused by corrosion easily when the metal heat exchange tube is used for a long time is effectively solved;

3. when the heat exchanger is used and maintained, the heat exchanger is convenient to replace, only the damaged single-module heat exchanger needs to be replaced, the damage to the field is small, and the pollution to the environment is greatly reduced because the residual water quantity of the single-module heat exchanger is small.

4. Because of the good pressure resistance, temperature resistance and corrosion resistance, the scale generated in use can be cleaned safely by chemical liquid without generating chemical corrosion when cleaning the metal heat exchange tube, and can be used safely and reliably for a long time;

5. can save a large amount of metal materials, in particular to a national strategic substance copper heat exchange tube.

Drawings

Fig. 1 is the utility model discloses floor heating is with novel plastic heat exchanger A modular structure schematic diagram.

Fig. 2 is the utility model discloses floor heating is with novel plastic heat exchanger B modular structure schematic diagram.

Fig. 3 is the schematic diagram of the a-type plug structure of the present invention.

Fig. 4 is a schematic diagram of the B-shaped plug structure of the present invention.

Fig. 5 is a schematic diagram of installation and use.

In the figure, 1-plastic heat exchanger module A, 11-module A, 1 st main pipe, 12-module A capillary tube fins, 13-module A capillary tube, 14-module A, 2-plastic heat exchanger module B, 21-module B, 1 st main pipe, 211-module B, 1 st main pipe boss, 22-module B capillary tube fins, 23-module B capillary tube, 24-module B, 2 nd main pipe, 241-module B, 2 nd main pipe boss, 15-1 st plug, 16-2 nd plug, 3-water inlet main pipe, 31-water inlet connecting pipe, 32-exhaust valve, 4-heat exchange site required by floor heating, 5-water outlet main pipe, 51-water outlet connecting pipe, 52-drain valve and 6-heat source.

Detailed Description

The following provides a preferred embodiment of the present invention with reference to the accompanying drawings to explain the technical solutions of the present invention in detail.

As shown in fig. 1 and 2, a plastic heat exchanger is provided in a modular arrangement, and includes a plastic heat exchanger module A1 and a plastic heat exchanger module B2.

The plastic heat exchanger module A1 comprises a module A1 st main pipe 11, a module A2 nd main pipe 14 and a module A capillary 13, wherein the module A1 st main pipe 11 and the module A2 nd main pipe 14 are arranged in parallel and are communicated with each other through the module A capillary 13, namely the module A capillary 13 is respectively communicated with the module A1 st main pipe 11 and the module A2 nd main pipe 14.

Hot water flows in through A1 st main pipe 11 of the module A, is shunted to enter a capillary 13 of the module A, flows in the capillary 13 of the module A, releases heat to the outside through the pipe wall of the capillary 13 of the module A, and finally flows out of the plastic heat exchanger module A1 in a circulating mode after converging through a 2 nd main pipe 14 of the module A.

The plastic heat exchanger module B2 comprises a module B1 st main pipe 21, a module B2 nd main pipe 24 and a module B capillary 23, wherein the module B1 st main pipe 21 and the module B2 nd main pipe 2 are arranged in parallel and are communicated with each other through the module B capillary 23, namely the module B capillary 23 is respectively communicated with the module B1 st main pipe 21 and the module B1 st main pipe 21; module B1 st main pipe bosses 211 are provided at both ends of the module B1 st main pipe 21, and module B2 nd main pipe bosses 241 are provided at both ends of the module B2 nd main pipe 24.

Hot water flows in through the 1 st main pipe 21 of the module B, is shunted to enter the capillary 23 of the module B, flows in the capillary 23 of the module B, releases heat to the outside through the pipe wall of the capillary 23 of the module B, and finally flows out of the plastic heat exchanger module B2 in a circulating way after converging through the 2 nd main pipe 24 of the module B.

Above-mentioned plastic heat exchanger module A1, plastic heat exchanger module B2, the accessible sets up the module B1 st person in charge boss 211 on plastic heat exchanger module B2, inserts the module A1 st and is responsible for the terminal surface mouth of pipe of 11 and the module B2 nd person in charge boss, inserts 241 module A2 nd and is responsible for the terminal surface mouth of pipe of 14 to the sealed fixed mode that bonds, according to warm up 4 sizes in required heat transfer place, the concatenation of modularization combination is laid.

In the laying process, the ports, which are not required to be inserted, at the two ends of the 1 st main pipe 11 and the 2 nd main pipe 14 of the module A can be blocked by the 1 st plug 15; the two ends of the 1 st main pipe 21 and the 2 nd main pipe 24 of the module B, which do not need to be plugged, can be blocked by the 2 nd plug 16, and are elastically stretched along the length direction of the capillary tube 13 of the module a and the capillary tube 23 of the module B, respectively.

The elastic stretching amount of the capillary tubes 13 and 23 of the modules A and B can be flexibly adjusted according to the size of the heat exchange field 4 required by the floor heating and the requirement of laying density.

The principle of construction of the 1 st plug 15 is shown in fig. 3, and the principle of construction of the 2 nd plug 16 is shown in fig. 4.

The 1 st plug 15 and the 2 nd plug 16 may be sealed by means of adhesion, or by means of threads, etc., and may be sealed by screwing, or by other suitable means.

On a heat exchange site 4 required by floor heating, after the modular combination, splicing and laying of the plastic heat exchanger module A1 and the plastic heat exchanger module B2 are completed, the water inlet main pipe 3 is communicated with the water outlet of the heat source 6 respectively, and the water inlet main pipe is hermetically and fixedly communicated with the water inlets of the spliced plastic heat exchanger module A1 and the spliced plastic heat exchanger module B2 by using a water inlet connecting pipe 31; meanwhile, the water inlet of the heat source 6 is communicated with the water outlet main pipe 5, and the water outlet connecting pipe 51 is fixedly communicated with the water inlets of the spliced plastic heat exchanger module A1 and the spliced plastic heat exchanger module B2 in a sealing manner.

The water inlet connection pipe 31 and the water outlet connection pipe 51 are hermetically connected with the plastic heat exchanger module, and a bonding method or a screw thread sealing method can be considered.

When the plastic heat exchanger is used, considering the air flowing in the plastic heat exchanger module A1 and the plastic heat exchanger module B2 and having hot water, the exhaust valve 32 is arranged at the highest position of the water inlet main pipe 3 and used for exhausting air, when the plastic heat exchanger module A is not used, the hot water is prevented from freezing in the pipeline and frost cracking of the pipeline, and the drain valve 52 is arranged at the lowest position of the water outlet main pipe 5 and used for draining the water in the pipeline when the floor heating is not used.

Above-mentioned modularization combination concatenation construction can refer to schematic diagram 5, takes above-mentioned mode, because modular production for low in production cost, and in the construction, the interface is less than the construction of taking conventional metal heat exchange tube, consequently leaks the construction that the risk is less than conventional metal heat exchange tube greatly, and construction quality is reliable, and the efficiency of construction is high.

Accomplish above-mentioned construction back, according to the construction requirement, the pressurization is picked up and is leaked normally the back, the modularization combination concatenation of the required heat transfer place 4 of completion ground heating is laid, finally put into service, the hot water that provides at heat source 6, be responsible for 3 through the intaking that communicates, the connecting pipe 31 of intaking, get into the plastic heat exchanger module A1 that the concatenation was accomplished, in the relevant pipeline of plastic heat exchanger module B2, carry out the heat transfer with the air in the required heat transfer place 4 spaces of ground heating, finally realize the mesh that heaies up, the hot water of completion heat transfer, the temperature reduces, through the play water connecting pipe 51 that communicates, go out water and be responsible for 5, the circulation gets into and heats in the heat source 6.

For the purpose of further improving the connection strength between the capillary tube and the main tube, reducing the leakage rate, and having high compressive strength, it is preferable that the module a capillary tube 13 is connected to the module a1 st main tube 11 and the module a 2 nd main tube 14, and the module B capillary tube 23 is connected to the module B1 st main tube 21 and the module B2 nd main tube 24, both of which are in seamless fusion connection.

To further increase the heat exchange area and improve the heat exchange efficiency, it is preferable that the module a capillary tube 13 is arranged obliquely with respect to the connected module a1 st main tube 11, the module a 2 nd main tube 14, and the module B capillary tube 23 with respect to the connected module B1 st main tube 21, and the module B2 nd main tube 24.

To further satisfy the requirement of achieving better heat exchange effect on the basis of convenient processing, it is preferable that the included angle between the module a capillary 13 and the module B capillary 23 is 45 degrees with respect to the connected module a1 st main pipe 11 and module a 2 nd main pipe 14, and the included angle between the module B capillary 23 and the connected module B1 st main pipe 21 and module B2 nd main pipe 24.

Of course, other angles than 45 degrees may be used, such as 30 degrees.

In order to realize that the plastic heat exchanger is easy to purchase raw materials, has certain elasticity, is convenient for low-cost processing, can ensure better pressure resistance, temperature resistance and corrosion resistance use characteristics in a longer service cycle, and achieve the purposes of high use reliability and greatly reduced use and maintenance cost, the plastic heat exchanger module A1 and the plastic heat exchanger module B2 are preferably made of polypropylene or polyethylene.

The outer diameters of the module A1 st main pipe 11, the module A2 nd main pipe 14, the module B1 st main pipe 21 and the module B2 nd main pipe 24 are phi 20mm, and the wall thickness is 2.0mm; the outer diameters of the capillary tube 13 of the module A and the capillary tube 23 of the module B are phi 4.3mm, and the wall thickness is 0.8mm.

When the heat exchanger is stopped, in order to avoid leakage caused by unclean residual hot water discharge and frost cracking damage to pipelines during icing and improve the use reliability, the 1 st main pipe 11, the 2 nd main pipe 14 and the capillary 13 of the module A are preferably selected; and the use pressure is 0.2-1.0 MPa, the use temperature is-20-60 ℃ between the module B1 st main pipe 21, the module B2 nd main pipe 24 and the module B capillary 23, and the inner walls of the main pipes and the capillary expand along with the low-temperature icing expansion of the hot water remained in the pipeline, so that the module B can be expanded elastically.

Due to the pressure resistance and the elastic characteristic of the heat exchanger, the cracking caused by icing and expansion in the pipe can be avoided to the maximum extent.

In order to further improve the heat exchange efficiency of the plastic heat exchanger, preferably, a module a capillary rib 12 is further arranged on the outer surface of the module a capillary 13; meanwhile, in order to improve the compressive strength, the capillary ribs 12 of the module A and the outer surface of the capillary 13 of the module A are fused and fixed, namely, are fused into a whole.

Meanwhile, the outer surface of the capillary tube 23 of the module B is also provided with a capillary rib 22 of the module B and the capillary rib 22 of the module B, and the capillary rib 22 of the module B and the outer surface of the capillary tube 23 of the module B are fused and fixed, namely, are fused into a whole.

In order to increase the heat exchange area, preferably, the capillary rib 12 of module a is wound around the outer wall of the capillary 13 of module a, and extends spirally along the length direction of the capillary, and the height dimension of the section of the capillary rib 12 of module a is smaller than the outer diameter dimension of the 1 st main pipe 11 of module a and the 2 nd main pipe 14 of module a.

The capillary ribs 22 of module B are arranged as required and will not be described further.

Above-mentioned plastics heat transfer fin heliciform extends the setting, and not only the processing of being convenient for, through the unsettled setting of capillary moreover, also can reach the air of being convenient for and flow around the capillary all around to improve heat exchange efficiency.

In the in-service use is maintained, if the inside scale deposit of plastic heat exchanger, in view of the corrosion-resistant characteristic of plastics, accessible chemical liquid washs, can effectively keep lasting heat transfer effect, and effective metal heat transfer pipe is revealed with the corruption that chemical liquid washs and lead to.

Simultaneously, if meet plastic heat exchanger and appear damaging, only need change the plastic heat exchanger module A1 that damages, perhaps plastic heat exchanger module B2 can, need not to change all the other intact heat exchangers, this makes and needs destroy lessly, and because the plastic heat exchanger module A1 that damages, perhaps the remaining water yield of plastic heat exchanger module B2 is less, also alleviates the pollution to the environment greatly.

The above is merely an example, and those skilled in the art can make various modifications and changes to the present invention. Thus, it is intended that the present invention cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.

Claims (9)

1. A plastic heat exchanger comprises a main pipe and capillary tubes, wherein the main pipe is divided into two parts, hot water flows in through the main pipe at one end, is shunted to enter the capillary tubes communicated with the main pipe, flows in the capillary tubes, releases heat to the outside through the tube walls of the capillary tubes, and finally flows out circularly after converging through the main pipe at the other end; and the plastic heat exchanger which is arranged in a modularized way is finally used for:

according to the size of a heat exchange field required by floor heating, the heat exchange tubes are combined and laid in a modularized mode, the length direction of the capillary tubes is arranged, the capillary tubes can be elastically stretched and arranged, and the damaged plastic heat exchanger can be changed in a modularized mode in use and maintenance.

2. A plastic heat exchanger according to claim 1, wherein the capillary tube is connected to the main tube as a seamless fused connection.

3. A plastic heat exchanger according to claim 2, wherein the capillary tube is arranged diagonally with respect to the communicating main tube.

4. A plastic heat exchanger according to claim 3, wherein the capillary tube is angled at 45 degrees with respect to the communicating main tube.

5. A plastic heat exchanger according to any one of claims 1 to 4, wherein the primary pipe, capillary tube material is polypropylene or polyethylene.

6. The plastic heat exchanger according to claim 5, wherein the main pipe and the capillary tube are elastically expanded by freezing at a low temperature according to the hot water remaining in the pipe, and the main pipe and the capillary tube are used at a pressure of 0.2 to 1.0MPa and a temperature of-20 to 60 ℃.

7. The plastic heat exchanger as claimed in claim 6, wherein a plastic heat exchange rib is further disposed on the outer surface of the capillary tube, and the plastic heat exchange rib is fused and fixed with the outer surface of the capillary tube.

8. The plastic heat exchanger as claimed in claim 7, wherein said plastic heat exchange rib is wound around the outer wall of said capillary tube, and extends helically along the length of said capillary tube, and has a cross-sectional height dimension smaller than the outer diameter dimension of said main tube.

9. A novel plastic heat exchanger for floor heating as claimed in claim 8, wherein the outer diameter of the main pipe is phi 20mm, and the wall thickness is 2.0mm; the diameter of the capillary tube is phi 4.3mm, and the wall thickness is 0.8mm.

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