CN201246972Y - Energy-saving heat energy exchange device - Google Patents

Abstract

An energy-saving heat energy exchange device, comprising a first exchange unit and a second exchange unit, wherein: the first exchange unit is provided with a first cavity and a second cavity, the first cavity is communicated with a first conduit outwards, the second cavity is communicated with a second conduit outwards, the horizontal position of the first conduit is arranged below the second conduit, the first cavity is indirectly communicated with the second cavity through a plurality of heat dissipation return pipes, a partition plate is arranged at the part, close to the middle section, of the stacked heat dissipation return pipes, and a through hole is formed in the partition plate; the second exchange unit is provided with a cover body which is communicated with a first through pipe and a second through pipe outwards, and the horizontal position of the first through pipe is positioned below the second through pipe; the heat exchange is carried out by the structure, so that the efficiency can reach the effect of saving energy.

Description

Energy-saving heat exchange device

technical field

The utility model relates to a heat exchange device, in particular to an energy-saving heat energy exchange device which uses different axial circulation directions to achieve the purpose of heat exchange.

Background technique

In recent years, the natural environment has been severely damaged, and the effects of global warming have intensified, coupled with the sharp decline in oil production, which has forced people to cherish energy to the point of urgency, especially in Taiwan, China, where natural resources are scarce, and they all rely heavily on imports Energy, and the "Kyoto Protocol" has come into force on February 16, 2005, so it is imperative to develop renewable energy and reduce energy consumption;

From an economic point of view, restricting the use of energy may hinder industrial development at first glance, but this is not the case. There have been many cases abroad, proving that saving energy can not only save considerable electricity bills, but also improve the company's operating efficiency. In the long run, energy saving can also save the company more energy costs and enhance the company's image;

In various types of industries, baking and heating equipment is almost an essential facility. Taking the electronics industry as an example, whether it is dehydration baking after washing with pure water, soft baking after resist coating, post-exposure baking, Hard baking, etc., must use heating equipment, and the heating equipment will inevitably discharge a large amount of waste heat during the treatment process. Generally speaking, the existing baking heating equipment directly discharges the waste heat into the air; however, the heat It may not cause harm to the human body, but if it is discharged into the air without treatment, the temperature of the surrounding environment will rise, and for the entire environment, it will undoubtedly promote global warming, which will not only indirectly kill many animals and plants , It will also endanger the survival of human beings as a whole, so the implementation of green technology is an inevitable trend.

Utility model content

The main technical problem to be solved by the utility model is to overcome the above-mentioned defects in the existing heating equipment, and provide an energy-saving heat exchange device, which greatly reduces energy consumption, achieves the effect of saving energy, is convenient for assembly or disassembly, and can Clean up quickly.

The technical scheme that the utility model solves its technical problem adopts is:

An energy-saving heat exchange device is characterized in that it includes a first exchange unit and a second exchange unit; the first exchange unit includes a first cavity and a second cavity, and the first cavity and a The first conduit communicates outwards, the second cavity communicates outwards with a second conduit, a number of heat dissipation return pipes are arranged between the first cavity and the second cavity, and the first cavity and the second cavity A plurality of through holes corresponding to the heat dissipation return pipe are provided to communicate with the heat dissipation return pipe, so that the first cavity and the second cavity communicate with each other through the heat dissipation return pipe; and the middle part of the plurality of heat dissipation return pipes is provided with a partition plate, The partition plate is provided with at least one through hole; the second exchange unit includes a cover body, the volume of the cover body covers at least the heat dissipation return pipe of the first exchange unit, and the cover body is connected with a first through pipe and a The second through pipe communicates with the outside; the cover of the second exchange unit is to cover the heat dissipation return pipe of the first exchange unit, and the first through pipe of the first exchange unit guides the fluid so that the fluid passes through the through hole and spread out of the heat dissipation return pipe, and then use the second through pipe to discharge the fluid; and the first conduit of the first exchange unit is to guide the fluid, and the fluid enters the first cavity and flows into the heat dissipation return pipe through the through hole, and then through The through hole of the second cavity flows out, and the second conduit is used to discharge the fluid, thereby achieving the energy-saving effect of energy exchange.

In the aforementioned energy-saving heat energy exchange device, the first cavity is separated from the second cavity and not directly communicated with each other.

In the aforementioned energy-saving heat energy exchange device, the horizontal position of the first through pipe of the second exchange unit is located below the second through pipe, and the first through pipe is used to introduce hot air to achieve the best energy exchange efficiency.

In the aforementioned energy-saving heat energy exchange device, the horizontal position of the first duct of the first exchange unit is located below the second duct, and the first duct is used to introduce cold air to achieve the best energy exchange efficiency.

In the aforementioned energy-saving heat exchange device, the heat dissipation return pipe is in a U-shaped tubular structure, and the heat dissipation return pipes are arranged in a stacked manner, thereby speeding up the energy exchange speed.

In the aforementioned energy-saving heat energy exchange device, a first handle is provided on the first exchange unit, so that the first exchange unit can be separated from the second exchange unit by pulling.

In the aforementioned energy-saving heat energy exchange device, a second handle is provided on the second exchange unit, so that the second exchange unit can be separated from the first exchange unit by pulling.

Existing heating equipment such as ovens directly discharge waste heat, causing damage to the environment, and cannot effectively use energy; the utility model uses the first duct of the second exchange unit to guide the hot air into the oven equipment , according to the principle of hot air rising and cold air falling, hot air enters the through hole and rises to the upper half of the heat dissipation return pipe group and is discharged from the second pipe. The hot air heats the lower half to the upper half of the heat dissipation return pipe along the way to achieve heat The effect of exchange; while the first duct of the first exchange unit guides the cold air into the first cavity and enters the heat dissipation return pipe, and the U-shaped structure of the heat dissipation return pipe is used to increase the contact area, so that the hot air of the second exchange unit and the heat dissipation The return pipe is fully contacted for heating, and enters the second cavity, and the heated hot air is discharged from the second conduit, and the heated hot air is recycled to the oven for use; thereby, the utility model can effectively Use the waste heat to heat the air, so that the oven equipment saves the energy consumption of heating the cold air and saves energy. According to the calculation of the experimental data, taking the oven equipment temperature of 260°C as an example, the oven exhaust is used to introduce the second The gas in the first pipe of the exchange unit is 235°C, the gas discharged from the second pipe after exchange is 132°C, and the gas introduced into the first pipe by the first exchange unit is 30°C, and it is discharged after heat exchange through the cooling pipe The gas in the second conduit is 79°C, which is calculated by the following formula:

Q(kcal)=ΔT(℃)×ΔS(kcal/m ₃ ℃)×m(m ³ /min), where Q is thermal energy (unit: kcal/min), ΔT is temperature change (unit: Celsius), ΔS is the conversion constant (unit: kcal/cubic meter Celsius), m is the gas flow rate (unit: cubic meter/minute), and is inserted into the above formula: Q=(260-30)×0.32×6.76=497.6kcal/ min=34.7kw/hr (1kcal/min=1.163* ^10-3 *60kw/hr) The energy consumption of the gas that has not undergone the heat exchange of the utility model is directly used in the oven is 34.7 kilowatts/hour:

Q _exchanger = (260-79) × 0.32 × 6.76 = 391.6kcal/min = 27.3kw/hr, after using the heat exchange of the utility model for heating, the energy consumption of the obtained gas for the oven is 27.3 kilowatts / hour, so every hour It can save 7.4 kilowatts of electricity, and it can be seen from the obtained data that it can indeed greatly reduce energy consumption and achieve the effect of saving energy; moreover, the utility model uses the first handle and the second handle to facilitate assembly or disassembly, and more Cleaning can be performed quickly.

The beneficial effect of the utility model is that the energy consumption is greatly reduced, the energy saving effect is achieved, the assembly or disassembly is convenient, and the cleaning operation can be carried out rapidly.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

Fig. 1 is an exploded schematic view of the energy-saving heat exchange device of the present invention.

Fig. 2 is a schematic diagram of the assembly of the energy-saving heat exchange device of the present invention.

Fig. 3 is a schematic diagram of the circulation flow of the second exchange unit of the present invention.

Fig. 4 is a schematic diagram of the circulating flow of the first exchange unit of the present invention.

Explanation of symbols in the figure:

First Exchange Unit 1 First Chamber 11 First Conduit 111

Second cavity 12 Second conduit 121 Heat dissipation return pipe 13

Through hole 14 Partition plate 15 Through hole 151

The first handle 16 The second exchange unit 2 Cover body 21

The first pipe 22 The second pipe 23 The second handle 24

Detailed ways

The utility model relates to an energy-saving heat exchange device, as shown in Figure 1 and Figure 2, which includes a first exchange unit 1 and a second exchange unit 2, wherein:

The first exchange unit 1 is provided with a first cavity 11 and a second cavity 12, the first cavity 11 and the second cavity 12 are arranged side by side and are separated from each other and not directly communicated with each other. The top of the second cavity 12 is provided with a first handle 16 across the first cavity 11 and the second cavity 12; the first cavity 11 communicates outwardly with a first conduit 111, and the first conduit 111 is used for Introducing cold gas; the second cavity 12 is in communication with a second conduit 121, and the second conduit 121 is used to discharge the gas introduced by the first conduit 111. The horizontal position of the first conduit 111 is set at the second Below the conduit 121; the first cavity 11 is indirectly communicated with the second cavity 12 through a number of heat dissipation return pipes 13, and the first cavity 11 is provided with a number of through holes 14 corresponding to the heat dissipation return pipe 13 and the heat dissipation return The pipe 13 communicates, and the second cavity 12 is also provided with a plurality of through holes 14 corresponding to the heat dissipation return pipe 13 to communicate with the heat dissipation return pipe 13. The heat dissipation return pipe 13 is a long U-shaped structure, and the heat dissipation return pipe 13 The tubes 13 are stacked on each other, and the stacked heat dissipation return pipes 13 are provided with a partition 15 adjacent to the middle section, so that the stacked heat dissipation return pipes 13 are divided into 13 groups of heat dissipation return pipes in the upper half and 13 groups of heat dissipation return pipes in the lower half. The partition 15 is provided with a through hole 151;

This second exchange unit 2 is provided with a cover body 21, and the volume of this cover body 21 is larger than the heat radiation return pipe 13 of the first exchange unit 1 and just can cover it outside, and this second exchange unit 2 is provided with a second Pull handle 24, and the cover body 21 communicates outwardly with a first through pipe 22 and a second through pipe 23, the horizontal position of the first through pipe 22 is below the second through pipe 23, and the first through pipe 22 The pipe 22 is used for introducing the heating gas, and the second through pipe 23 is used for discharging the heating gas.

During assembly, as shown in Figure 2, the second exchange unit 2 is installed outside the heat dissipation return pipe 13 covering the first exchange unit 1, and the first exchange unit 1 is provided with a first handle 16, and the first exchange unit 1 is provided with a first handle 16, and the The second exchange unit 2 is provided with a second handle 24, which facilitates assembly and disassembly; when in use, the first conduit 111 of the first exchange unit 1 introduces cold air, and the cold air enters the first cavity 11 And flow into the heat dissipation return pipe 13 through the through hole 14, lead the heated gas through the through hole 14 of the second cavity 12, and discharge the gas through the second conduit 121; meanwhile, the first exchange unit 2 of the second exchange unit 2 Through pipe 22 guides hot air, makes hot air lead into cover body 21 along first through pipe 22, because the middle part of heat dissipation return pipe 13 in this cover body 21 is provided with partition plate 15 and heat dissipation return pipe 13 along the lower half group flow, and then enter the through hole 151 to guide the upper half of the heat return pipe 13 group, and discharge from the second through pipe 23; The return circulation in the horizontal direction is coordinated with the return circulation in the vertical direction from the first through pipe 22 to the second through pipe 23 of the second exchange unit 2. The cold air introduced by the first conduit 111 of the first exchange unit 1 is passed through the second The hot air introduced by the first duct 22 of the exchange unit 2 is heated to make the second duct 121 of the first exchange unit 1 discharge the heated air, so as to achieve the effect of heat energy exchange and energy saving.

Please refer to the action diagrams in Figure 3 and Figure 4, and take actual use as an example. Blocked by the partition plate 15, it flows along the 13 groups of heat dissipation return pipes in the lower half. According to the principle of rising hot air and descending cold air, the hot air enters the through hole 151 and rises to the 13 groups of heat dissipation return pipes in the upper half and then passes through the second through pipe 23. Exhausted, the hot air flows through the lower half to the upper half of the heat dissipation return pipe 13 in sequence, and the air in the heat dissipation return pipe 13 is heated along the way to achieve the effect of heat exchange; and as shown in Figure 4, the first The first duct 111 of the exchange unit 1 guides the cold air into the first cavity 11, guides it to the heat dissipation return pipe 13 through the through hole 14 in the first cavity 11, and is subjected to the second heat dissipation along the U-shaped structure of the heat dissipation return pipe 13. The hot air in the second exchange unit 2 is heated and enters the second cavity 12, and then the heated hot air is discharged from the second conduit 121, and the heated hot air is recycled to the oven for use, so that the oven saves The energy consumption of heating the cold air saves energy.

The U-shaped structure of the heat dissipation return pipe 13 in the utility model helps to accelerate the exchange speed, and because the hot air rises and the cold air descends, the horizontal position of the first conduit 111 is lower than the second conduit 121, so that the gas flow rate is accelerated, Cooperate with the second exchange unit 2 to introduce higher temperature hot air into the first duct 22, and the higher temperature hot air rises rapidly into the through hole 151, so that the exchange speed is also accelerated to achieve the best heat exchange effect;

And according to the experimental data, taking the oven temperature of 260°C as an example, the gas to be introduced into the first through pipe 22 of the second exchange unit 2 through the oven discharge is 235°C, and the gas discharged from the second through pipe 23 after exchange is 132°C. ℃, while the gas introduced by the first exchange unit 1 into the first conduit 111 is 30°C, and the gas discharged from the second conduit 121 after heat exchange in the cooling return pipe 13 is 79°C, calculated using the following formula:

Q(kcal)=ΔT(℃)×ΔS(kcal/m ₃ ℃)×m(m3/min),

Among them, Q is heat energy (unit: kcal/min), ΔT is temperature change (unit: Celsius), ΔS is conversion constant (unit: kcal/cubic meter Celsius), m is gas flow rate (unit: cubic meter/ Minutes), into the above formula, the calculation is as follows:

Q=(260-30)×0.32×6.76=497.6kcal/min=34.7kw/hr (1kcal/min=1.163* ^10-3 *60kw/hr) The gas that has not been heat exchanged by the utility model is directly used in the oven Energy consumption is 34.7 kW/h:

Q _exchanger ＝(260-79)×0.32×6.76＝391.6kcal/min＝27.3kw/hr

After using the utility model for heat exchange and heating, the energy consumption of the obtained gas for the oven is 27.3 kilowatts per hour, so 34.7-27.3=7.4 kilowatts of electricity can be saved per hour. From the above data, it can be seen that it does greatly reduce energy consumption, reaching Energy saving effect.

The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the utility model, All still belong to within the scope of the technical solution of the utility model.

In summary, the utility model fully meets the needs of industrial development in terms of structural design, practicability and cost-effectiveness, and the disclosed structure also has an unprecedented innovative structure, novelty, creativity and practicability, and meets the needs of industrial development. According to the requirements of the new patent requirements, the application is filed in accordance with the law.

Claims (7)

1. An energy-saving heat exchange device, characterized in that it comprises a first exchange unit and a second exchange unit; The first exchange unit includes a first cavity and a second cavity, the first cavity communicates outward with a first conduit, the second cavity communicates outward with a second conduit, the first cavity A number of heat dissipation return pipes are provided between the body and the second cavity, and the first cavity and the second cavity are provided with a number of through holes corresponding to the heat dissipation return pipes to communicate with the heat dissipation return pipes, so that the first cavity and the second cavity The body is connected to each other through the heat dissipation return pipe; and the middle part of the plurality of heat dissipation return pipes is provided with a partition, and the partition is provided with at least one through hole; The second exchange unit includes a cover, the volume of which covers at least the heat dissipation return pipe of the first exchange unit, and the cover communicates outwardly with a first through pipe and a second through pipe; The cover of the second exchange unit covers the heat dissipation return pipe of the first exchange unit. 2. The energy-saving heat exchange device according to claim 1, characterized in that: the first cavity is separated from the second cavity and not directly communicated with each other. 3. The energy-saving heat exchange device according to claim 1, wherein the horizontal position of the first through pipe of the second exchange unit is located below the second through pipe. 4. The energy-saving heat exchange device according to claim 1, wherein the horizontal position of the first conduit of the first exchange unit is located below the second conduit. 5 . The energy-saving heat exchange device according to claim 1 , wherein the heat dissipation return pipes are in a U-shaped tubular structure, and the heat dissipation return pipes are arranged in a stacked manner. 6. The energy-saving heat energy exchange device according to claim 1, wherein a first handle is provided on the first exchange unit, so that the first exchange unit can be separated from the second exchange unit by pulling. . 7. The energy-saving heat exchange device according to claim 1, wherein a second handle is provided on the second exchange unit, so that the second exchange unit can be separated from the first exchange unit by pulling. .

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