CN111531859A - Energy-efficient heat cycle system - Google Patents
Energy-efficient heat cycle system Download PDFInfo
- Publication number
- CN111531859A CN111531859A CN202010384475.0A CN202010384475A CN111531859A CN 111531859 A CN111531859 A CN 111531859A CN 202010384475 A CN202010384475 A CN 202010384475A CN 111531859 A CN111531859 A CN 111531859A
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- Prior art keywords
- heat exchanger
- heat
- water
- water tank
- temperature exhaust
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
- B29C55/02—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
- B29C55/10—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial
- B29C55/12—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial biaxial
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
- B29C35/04—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam
- B29C35/045—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam using gas or flames
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
- B29C35/04—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam
- B29C35/06—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam for articles of indefinite length
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
- B29C35/04—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam
- B29C35/045—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam using gas or flames
- B29C2035/046—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam using gas or flames dried air
Abstract
The invention relates to a high-efficiency energy-saving heat circulation system, which comprises a heater and a heat supply system, wherein the heater is connected with the heat supply system, the system also comprises a heat exchanger and a purification fan, the purification fan is connected with the heat exchanger, the heat exchanger is connected with the heater through an exhaust pipe, the heater is connected with the heat supply system, the high-temperature exhaust output end of the heat supply system is connected with the heat exchanger, and a transverse purification air channel and a longitudinal high-temperature exhaust channel are arranged in the heat exchanger; the purified air output from the purifying fan enters a purified air channel of the heat exchanger, the high-temperature exhaust air output from the heat supply system enters a high-temperature exhaust air channel of the heat exchanger, and the purified air and the high-temperature exhaust air exchange heat in a transverse purified air channel and a longitudinal high-temperature exhaust air channel. The invention raises the temperature of the incoming purified air, and enables the heat of the high-temperature exhaust air to be recycled, thereby achieving the effects of high efficiency and energy saving.
Description
Technical Field
The invention relates to the field of thermal cycle, in particular to a high-efficiency energy-saving thermal cycle system.
Background
In the production fields of films, spraying and the like, a heating device is generally required to be arranged for supplying heat.
For the production of films, BOPET is an abbreviation for "biaxialy organized Polypropylene", BOPP film, i.e. Biaxially Oriented Polypropylene film. BOPP films are produced by first passing a melt of high molecular polypropylene through a long and narrow head to form a sheet or thick film, then stretching the film in two perpendicular directions (longitudinal and transverse) simultaneously or stepwise at a certain temperature and a set speed in a special stretching machine, and subjecting the film to appropriate cooling or heat treatment or special processing (e.g. corona, coating, etc.).
In the current BOPET biaxially oriented film production process, TDO (transverse orientation) oven is a process in biaxially oriented films) which generates certain oligomers (such as nylon oligomers, other floats, dust, etc.). Because the film can generate static electricity in the stretching process, the film has adsorption effect on oligomer and dust, and if the film is brought into rolling, the quality of the film is reduced, and therefore, an exhaust fan is needed to exhaust high-temperature exhaust air containing the oligomer. However, while exhausting air, the purified air needs to be heated by another purifying fan and then sent to the TDO oven to keep the air pressure balance of the TDO oven, which increases the energy consumption, and the exhausted high-temperature exhaust air also causes energy waste.
Therefore, it is necessary to provide an energy efficient heat cycle system capable of energy recovery.
Disclosure of Invention
Therefore, it is necessary to provide an efficient energy-saving heat cycle system for solving the problem of energy waste in the prior art.
The invention relates to a high-efficiency energy-saving heat circulation system, which comprises a heater 1 and a heat supply system 2, wherein the heater 1 is connected with the heat supply system 2, the system also comprises a heat exchanger 3 and a purification fan 4, the purification fan 4 is connected with the heat exchanger 3, the heat exchanger 3 is connected with the heater 1 through an exhaust pipe, the heater 1 is connected with the heat supply system 2, the high-temperature exhaust output end of the heat supply system 2 is connected with the heat exchanger 3, and a transverse purified air channel 35 and a longitudinal high-temperature exhaust channel 36 are arranged in the heat exchanger 3; the purified air outputted from the purifying fan 4 enters the purified air passage 35 of the heat exchanger 3, the high temperature exhaust air outputted from the heating demand system 2 enters the high temperature exhaust air passage 36 of the heat exchanger, and the purified air and the high temperature exhaust air perform heat exchange in the horizontal purified air passage 35 and the vertical high temperature exhaust air passage 36.
In one embodiment, the heat exchanger comprises heat exchange plates 5, a bracket 6 and a frame 7, wherein a plurality of heat exchange plates 5 form a module, each module is fixed through the bracket 6, and a plurality of modules are fixed through the frame 7.
In one embodiment, the heat exchanger plate 5 is provided with a concave part and a convex part, and the concave part and the convex part are arranged at intervals according to a preset proportion.
In one embodiment, the system further comprises an alkaline water tank 8 filled with the liquid medicine and a water pump 9, the water pump 9 comprises a water feeding pump 91 and a water returning pump 92, the output end of the alkaline water tank 8 is connected with the water feeding pump 91, the water feeding pump 91 feeds the liquid medicine to the heat exchanger 3 through a pipeline, and the water returning pump 92 is connected with the alkaline water tank 8 through a pipeline.
In one embodiment, the heat cycle system further includes a water tank 10, the water tank 10 is provided with a filtering device, the water tank 10 is connected to the water return pump 92 through a pipeline, and the liquid medicine flowing out from the bottom of the heat exchanger 3 passes through the filtering device and then flows into the alkaline water tank 8 through the water return pump 92.
In one embodiment, the heat exchanger 3 is provided with an inlet valve 31 at the top and an outlet valve 32 at the bottom.
In one embodiment, the side of the heat exchanger 3 is provided with an air inlet 33 and an air outlet 34.
Purified air output from an external purifying fan and high-temperature exhaust air output from the heat supply system respectively enter a purified air channel and a high-temperature exhaust channel of the heat exchanger and exchange heat, so that the temperature of the incoming purified air is increased, the heat of the high-temperature exhaust air can be recycled, and the effects of high efficiency and energy saving are achieved.
Drawings
FIG. 1 is a schematic diagram of an energy efficient heat cycle system according to one embodiment;
FIG. 2 is a cross-sectional view of a plate construction according to one embodiment;
FIG. 3 is a longitudinal view of a stack of a plurality of plates according to one embodiment;
fig. 4 is a transverse view of a stack of multiple plates according to one embodiment.
Description of reference numerals:
1: heater, 2: heat supply system, 3: heat exchanger, 4: purification fan, 5: heat exchange fin, 6: support, 7: frame, 8: alkaline water irrigation, 9: water pump, 10: a water tank; 11: pipeline
31: valve-in valve, 32: outlet valve, 33: an air inlet, 34: air outlet, 35: clean wind channel (lateral), 36: a high temperature exhaust channel (longitudinal);
51: a first flat portion; 52: a first curved portion; 53: a first convex portion; 54: a first recess;
61: a second flat portion; 62: a second recess; 63: a second convex portion;
81: dosing port, 82: a blind plate;
91: water feed pump, 92: a water return pump.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It will be understood that the terms "first," "second," and the like as used herein may be used herein to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish one element from another. For example, a first recess may be referred to as a second recess, and similarly, a second recess may be referred to as a first recess, without departing from the scope of the present application.
FIG. 1 is a schematic diagram of an energy efficient recycle system according to one embodiment, as shown. An efficient energy-saving heat cycle system comprises a heater 1, a heat supply system 2, a heat exchanger 3, a purification fan 4, an alkaline water tank 8, a water pump 9 and a water tank 10. The heat demand system 2 may be a TDO oven or the like.
In one embodiment, the heater 1 is connected with the heat supply system 2, the purification fan 4 is connected with the air inlet 33 of the heat exchanger 3, the air outlet 34 of the heat exchanger 3 is connected with the heater 1 through an exhaust pipe, the heater 1 is connected with the heat supply system 2, the high-temperature exhaust output end of the heat supply system 2 is connected with the heat exchanger 3, and the heat exchanger 3 is internally provided with a transverse purification air channel 35 and a longitudinal high-temperature exhaust channel 36; the purified air output from the purifying fan 4 enters the purified air passage 35 of the heat exchanger 3, the high-temperature exhaust air output from the heating demand system 2 enters the high-temperature exhaust air passage 36 of the heat exchanger, and the purified air and the high-temperature exhaust air exchange heat between the transverse purified air passage 35 and the longitudinal high-temperature exhaust air passage 36.
Wherein, the inside of the purification fan 4 is provided with a primary filter, a secondary filter, a sub-high efficiency filter and a high efficiency filter. After the outdoor air enters the purifying fan 4, the outdoor air passes through the primary filter, the intermediate filter, the sub-high efficiency filter and the high efficiency filter, becomes clean air after being filtered, and is sent out by the internal fan.
The purified air sent by the purifying fan 4 enters the heat exchanger 3 through the exhaust pipe for heat exchange. The heat exchanger comprises heat exchange plates 5, supports 6 and a frame 7, wherein a plurality of heat exchange plates 5 are spliced together to form a module, each module is fixed through the supports 6, and a plurality of modules are fixed through the frame 7. In one embodiment, the heat exchanger of fig. 1 is formed by stacking four modules, but may be formed by stacking a plurality of modules, and the invention is not limited thereto.
Specifically, the heat exchange fins 5 are provided with concave parts and convex parts, and the concave parts and the convex parts are arranged at intervals according to a preset proportion.
In one embodiment, the plate 5 is constructed as shown in figures 2, 3 and 4. The upper part and the bottom part of the heat exchange plate 5 are respectively provided with a first flat part 51, a first curved part 52, a first convex part 53 and a first concave part 54 which are connected in sequence. The two ends of the heat exchanging plate 5 are respectively provided with a symmetrical first flat part 51 and a symmetrical first curved part 52, and the middle part is formed by alternately connecting a plurality of first convex parts 53 and first concave parts 54. The two heat exchange sheets 5 are overlapped to form a longitudinal high-temperature exhaust channel 36.
In one embodiment, the left portion and the right portion of the heat exchanger plate 5 are respectively provided with a second flat portion 61, a second concave portion 62 and a second convex portion 63 which are sequentially connected, two ends of the heat exchanger plate 5 are respectively provided with a symmetrical second flat portion 61, and the middle portion of the heat exchanger plate is formed by alternately connecting a plurality of second concave portions 62 and second convex portions 63. The two heat exchange plates 5 are overlapped to form a transverse purified air channel 35.
The high-temperature pure air after heat exchange is heated to the temperature required by the interior of the heat supply system 2 through the heater 1. Experiments prove that: due to the structure of the heat exchange plate, the heating frequency of the heater 1 can be reduced to 20% from 90% before passing through the heat exchanger 3, and the heating energy consumption is saved by 70%. And through the heat transfer of heat exchanger 3, need the inside number of times of taking a breath of heating system 2 can increase about 5 times to reach and need the inside air cleaner of heating system 2, so have energy-efficient heat circulated effect.
Purified air passing through the heater 1 is sent into the heat supply system 2, air is changed in the heat supply system 2, high-temperature air with oligomers in the heat supply system 2 is exhausted in a proper manner, the exhausted air is connected into the heat exchanger 3 through the exhaust pipe again, the temperature of the heat exchanger 3 is increased, and heat energy is transmitted to the purified air, so that the purified air absorbs heat, and the high-temperature air is obtained.
The high-temperature exhaust air containing the oligomer is changed into normal-temperature air after heat exchange through the heat exchanger 3 and is discharged to the outside, at the moment, the oligomer is adhered to the air duct of the heat exchanger 3, and the heat exchanger 3 needs to be cleaned within the time when the heat supply system 2 needs to pause.
In one embodiment, the high-efficiency energy-saving heat cycle system further comprises an alkaline water tank 8 filled with liquid medicine, a water pump 9 and a water tank 10, wherein a medicine adding port 81 and a blind plate 82 are arranged at the top of the alkaline water tank 8, and the blind plate 82 covers the alkaline water tank after medicine is added. The water pump 9 comprises a water feeding pump 91 and a water return pump 92, the output end of the alkaline water tank 8 is connected with the water feeding pump 91, the water feeding pump 91 sends liquid medicine to the heat exchanger 3 through a pipeline 11, the water tank 10 is provided with a filtering device, the water tank 10 is connected with the water return pump 92 through another pipeline 11, and the liquid medicine flowing out of the bottom of the heat exchanger 3 flows into the alkaline water tank 8 through the water return pump 92 after passing through the filtering device of the water tank 10.
Wherein, the top of the heat exchanger 3 is provided with an inlet valve 31, the bottom is provided with an outlet valve 32, and the side of the heat exchanger 3 is provided with an air inlet 33 and an air outlet 34.
When cleaning, the outlet valve 32 at the bottom of the heat exchanger 3 needs to be closed, the water feeding pump 91 is started, the liquid medicine in the alkaline water tank 8 is fed into the heat exchanger 3, after the heat exchanger 3 is full of water, the oligomer drops from the internal air channel after being soaked for about 30 minutes, at the moment, the water feeding pump 91 is closed, the outlet valve 32 at the bottom is opened, and the liquid medicine flows into the water tank 10 from the heat exchanger 3. The return pump 92 is started to return the water to the soda tank 8 again after passing through the filter of the water tank 10, the return pump 92 is turned off after the water in the water tank 10 is pumped out, and the drain valve below the water tank 10 is opened to drain the water in the water tank 10 again.
Further, in order to facilitate cleaning of the heat exchanger 3, an embodiment of the present invention may also provide a spare duct for high temperature exhaust, so that the normal operation of the heating system 2 is not affected while the heat exchanger 3 is cleaned.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (7)
1. An energy-efficient heat cycle system, including heater (1) and heat supply system (2) need, heater (1) with need heat supply system (2) and be connected, its characterized in that, the system still includes heat exchanger (3) and purification fan (4), purification fan (4) with heat exchanger (3) are connected, heat exchanger (3) through the exhaust pipe with heater (1) are connected, heater (1) with need heat supply system (2) are connected, need the high temperature of heat supply system (2) to air the output and be connected with heat exchanger (3), heat exchanger (3) inside is equipped with horizontal purification wind passageway (35) and vertical high temperature channel (36) of airing exhaust; the purified air outputted from the purifying fan (4) enters a purified air passage (35) of the heat exchanger (3), the high-temperature exhaust air outputted from the heat supply system (2) enters a high-temperature exhaust air passage (36) of the heat exchanger, and the purified air and the high-temperature exhaust air exchange heat between the transverse purified air passage (35) and the longitudinal high-temperature exhaust air passage (36).
2. The system according to claim 1, wherein the heat exchanger comprises heat exchanging fins (5), a frame (6) and a frame (7), the plurality of heat exchanging fins (5) are combined into a module, each module is fixed by the frame (6), and the plurality of modules are fixed by the frame (7).
3. The energy efficient heat cycle system according to claim 1 or 2, wherein the heat exchanger plate (5) is provided with a concave portion and a convex portion, and the concave portion and the convex portion are spaced according to a preset ratio.
4. The energy-efficient heat cycle system of claim 3, characterized in that the system further comprises an alkaline water tank (8) containing the chemical water and a water pump (9), the water pump (9) comprises a water feeding pump (91) and a water returning pump (92), the output end of the alkaline water tank (8) is connected with the water feeding pump (91), the water feeding pump (91) feeds the chemical water to the heat exchanger (3) through a pipeline, and the water returning pump (92) is connected with the alkaline water tank (8) through a pipeline.
5. The energy-efficient heat cycle system of claim 4, characterized in that the heat cycle system further comprises a water tank (10), the water tank (10) is provided with a filtering device, the water tank (10) is connected with the water return pump (92) through a pipeline, and the liquid medicine flowing out from the bottom of the heat exchanger (3) passes through the filtering device and then flows into the alkaline water tank (8) through the water return pump (92).
6. An energy efficient heat cycle system according to claim 1, characterized in that the heat exchanger (3) is provided with an inlet valve (31) at the top and an outlet valve (32) at the bottom.
7. An energy efficient heat cycle system according to claim 1, characterized in that the side of the heat exchanger (3) is provided with an air inlet (33) and an air outlet (34).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010384475.0A CN111531859A (en) | 2020-05-08 | 2020-05-08 | Energy-efficient heat cycle system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010384475.0A CN111531859A (en) | 2020-05-08 | 2020-05-08 | Energy-efficient heat cycle system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111531859A true CN111531859A (en) | 2020-08-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010384475.0A Pending CN111531859A (en) | 2020-05-08 | 2020-05-08 | Energy-efficient heat cycle system |
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| CN (1) | CN111531859A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204359201U (en) * | 2014-12-19 | 2015-05-27 | 上海昶嘉工业设备有限公司 | Integral type heat recovery machine on-line cleaning device |
| CN204451189U (en) * | 2015-03-15 | 2015-07-08 | 河北维拓新材料科技有限公司 | For the heat recovery system of biaxial tension BOPP production line |
| CN206989773U (en) * | 2017-05-25 | 2018-02-09 | 福建龙净环保股份有限公司 | Gas-gas heat exchanger |
| CN108571907A (en) * | 2018-07-02 | 2018-09-25 | 宁波市哈雷换热设备有限公司 | A kind of board-like off-gas recovery heat-exchanger rig |
| CN208222830U (en) * | 2018-05-11 | 2018-12-11 | 河南银金达新材料股份有限公司 | One kind being used for film fresh air preheating device stretching in the transverse direction |
-
2020
- 2020-05-08 CN CN202010384475.0A patent/CN111531859A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204359201U (en) * | 2014-12-19 | 2015-05-27 | 上海昶嘉工业设备有限公司 | Integral type heat recovery machine on-line cleaning device |
| CN204451189U (en) * | 2015-03-15 | 2015-07-08 | 河北维拓新材料科技有限公司 | For the heat recovery system of biaxial tension BOPP production line |
| CN206989773U (en) * | 2017-05-25 | 2018-02-09 | 福建龙净环保股份有限公司 | Gas-gas heat exchanger |
| CN208222830U (en) * | 2018-05-11 | 2018-12-11 | 河南银金达新材料股份有限公司 | One kind being used for film fresh air preheating device stretching in the transverse direction |
| CN108571907A (en) * | 2018-07-02 | 2018-09-25 | 宁波市哈雷换热设备有限公司 | A kind of board-like off-gas recovery heat-exchanger rig |
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Application publication date: 20200814 |