CN111928460A - Device for collecting heat output by air conditioner external unit - Google Patents
Device for collecting heat output by air conditioner external unit Download PDFInfo
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- CN111928460A CN111928460A CN202010697590.3A CN202010697590A CN111928460A CN 111928460 A CN111928460 A CN 111928460A CN 202010697590 A CN202010697590 A CN 202010697590A CN 111928460 A CN111928460 A CN 111928460A
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- heat
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F12/00—Use of energy recovery systems in air conditioning, ventilation or screening
Abstract
The invention discloses a device for collecting heat output by an air conditioner outdoor unit, wherein an outer body cover is conical, the large end of the outer body cover is sleeved on the air conditioner outdoor unit, a heat collecting baffle, a heat exhaust fan and a hollow thin plate are arranged in parallel from the large end to the small end in the small end, a plurality of baffle through holes are uniformly distributed on the surface of the heat collecting baffle, a plurality of fluid flow distribution plates which are vertically arranged and are parallel to each other are arranged in the inner cavity of the hollow thin plate at intervals, a plurality of ventilation pipes which are horizontally arranged penetrate through the hollow thin plate, the ventilation pipes are not in contact with the fluid flow distribution plates when penetrating through the inner cavity of the hollow thin plate, each ventilation pipe is hermetically connected with the hollow thin plate, and water channels are formed in the inner cavity of the hollow thin plate in; one end of the water inlet pipe and one end of the water outlet pipe are both communicated with the water channel in the hollow thin plate inner cavity, and the other end of the water inlet pipe and the other end of the water outlet pipe extend out of the outer body cover and are connected with the water tank; the heat energy discharged by the air conditioner external unit is recovered by utilizing the throttling expansion effect and the condensation effect, and the heat energy absorption efficiency is improved.
Description
Technical Field
The invention belongs to a device for collecting heat in hydrodynamics and engineering thermophysics, in particular to a device for collecting heat output by an air conditioner external unit.
Background
The air conditioner is a main refrigeration device and is also a main device for generating energy consumption of daily buildings, and the energy consumption of the air conditioner is more lost from an air conditioner outdoor unit in the form of heat energy. The heat generated by the air conditioner outdoor unit is directly discharged without any treatment, thereby intensifying the change of outdoor temperature and ensuring that the temperature rises more rapidly. In order to solve this problem, a method of recycling the waste heat of the air conditioner is generally used, for example, a "refrigerator cold and heat recovery device" disclosed in chinese patent No. CN201120532556.7 includes a cooling liner filled with a non-freezing liquid medium and a heating water pipe provided in a machine body, and the generated heat is recovered and introduced into the heating water pipe. The device only outputs heat through a simple pipeline, heat dissipation is large, recovery efficiency is low, and the heat discharged to the air is still large.
Disclosure of Invention
The invention mainly aims to provide a device for collecting the output heat of an air conditioner outdoor unit, which can improve the heat absorption efficiency, absorb the output heat of an individual outdoor unit of the air conditioner, reduce the emission of the outdoor unit in the air and convert the absorbed output heat into usable hot water heat energy for use.
The technical scheme adopted by the invention is as follows: the invention comprises an outer body cover and a water tank, wherein the outer body cover is conical, the large end of the outer body cover is sleeved on an air conditioner external unit, the inside of the small end is a heat collecting baffle, a heat extraction fan and a hollow thin plate which are arranged in parallel from the large end to the small end, the four sides of the heat collecting baffle and the hollow thin plate are fixedly connected with the inner wall of the outer body cover, a plurality of baffle through holes are uniformly distributed on the surface of the heat collecting baffle, a plurality of fluid flow distribution plates which are arranged up and down and are parallel to each other are arranged in the inner cavity of the hollow thin plate at intervals, two adjacent fluid flow distribution plates respectively extend towards the inner side walls of the hollow thin plate which face to each other, and the extending ends; a plurality of ventilation pipes which are horizontally arranged penetrate through the hollow thin plate, the ventilation pipes are not contacted with the fluid flow distribution plate when penetrating through the inner cavity of the hollow thin plate, each ventilation pipe is hermetically connected with the hollow thin plate, and water channels are formed in the inner cavity of the hollow thin plate except the ventilation pipes and the fluid flow distribution plate; one end of the water inlet pipe and one end of the water outlet pipe are both communicated with the water channel in the hollow thin plate inner cavity, and the other ends of the water inlet pipe and the water outlet pipe extend out of the outer body cover to be connected with the water tank.
The baffle through hole is a conical hole, the large end of the baffle through hole is aligned to form an air inlet for the air conditioner external unit, and the small end of the baffle through hole is aligned to form an air outlet for the heat exhaust fan.
The heat exhaust fan is fixedly connected to the inner wall of the outer body cover and located in the center of the small end of the outer body cover, and the heat exhaust fan is not in contact with the heat collection baffle and the hollow thin plate.
The hollow thin plate is parallel to the heat collecting baffle, the ventilating pipe is in a conical pipeline shape, the large end of the ventilating pipe is an air outlet, the air outlet faces the outside of the small end of the outer body cover, the small end of the ventilating pipe is an air inlet, and the air inlet of the ventilating pipe faces the heat exhausting fan.
The invention has the advantages that after the technical scheme is adopted:
3. the invention adopts the outer body cover and the heat collection baffle plate to collect heat of the discharged hot air, and then uses the micro water pump to press water, so that the water continuously flows into the water channel and absorbs the heat transferred from the hot air to the hollow thin plate, thereby achieving the purpose of converting the waste heat of the air conditioner outer unit, recovering the heat discharged by the air conditioner outer unit by using the throttling expansion effect and the condensation effect, improving the heat absorption efficiency, and carrying out secondary utilization on the absorbed heat.
2. The invention can reduce the influence of hot air in the air conditioner external machine on the outdoor temperature, reduce the effect of heat emission, slow down the rate of heat increase of the outdoor air, thereby achieving the effect of reducing the greenhouse effect, being beneficial to reducing the operation temperature of the air conditioner condenser, reducing the heating loss of the machine, further realizing energy conservation and emission reduction, and improving the refrigeration energy efficiency.
3. The invention has simple structure, low requirement on the field, small volume and light weight, can not increase the burden of an air conditioner outdoor unit, and solves the problem that residents in high buildings cannot be installed outdoors.
Drawings
FIG. 1 is a schematic view of the overall structural connection of the present invention;
FIG. 2 is an enlarged side view of the external structure of the outer body cover 1 in FIG. 1;
FIG. 3 is an enlarged sectional view of the internal structure of FIG. 2;
FIG. 4 is an enlarged cross-sectional view of the right side view structure of FIG. 3;
fig. 5 is a right side sectional enlarged view of fig. 4.
In the figure: 1. an outer body cover; 2. heat collection baffle plates; 3. a heat exhaust fan; 4. a hollow sheet; 5. a water inlet pipe; 6. a water outlet pipe; 7. a vent pipe; 8. a fluid diverter plate; 9. a water passage; 10. a common water pipe; 11. insulating PVC water pipe; 12. a water tank; 13. a micro water pump; 14. the baffle through-hole.
Detailed Description
As shown in fig. 1 and 2, the present invention includes an outer body cover 1 and a water tank 12, the outer body cover 1 covers an air conditioner outdoor unit, the outer body cover 1 is provided with a water inlet and an outlet, a water inlet pipe 5 passes through the inlet provided on the outer body cover 1, and a water outlet pipe 6 passes through the outlet provided on the outer body cover 1. The water outlet pipe 6 is connected with an inlet of the water tank 12 through the heat preservation PVC water pipe 11, the water inlet pipe 5 is connected with an outlet of the water tank 12 through the common water pipe 10, the micro water pump 13 is installed on the common water pipe 10, the micro water pump 13 pumps water in the water tank 12 into the water inlet pipe 5, and water flowing out of the water outlet pipe 6 enters the water tank 12 through the heat preservation PVC water pipe 11, so that circulation is formed.
Referring to fig. 3, 4 and 5, the outer body cover 1 is a cover body structure which is integrally tapered, the large end of the outer body cover is sleeved on an air conditioner external unit, and the small end of the outer body cover is internally provided with a heat collecting baffle 2, a heat exhaust fan 3 and a hollow thin plate 4. The heat output by the air conditioner external unit flows from the large end to the small end. The heat collecting baffle 2, the heat exhaust fan 3 and the hollow sheet 4 are arranged in parallel from the large end of the outer body cover 1 to the small end, and the heat collecting baffle 2 is closest to the large end of the outer body cover 1, namely the air conditioner outdoor unit. The whole heat collecting baffle 2 is a solid thin plate, and four sides of the heat collecting baffle 2 are fixedly connected with the inner wall of the outer body cover 1. A plurality of baffle through holes 14 are uniformly distributed on the surface of the heat collection baffle 2, the baffle through holes 14 are conical holes, the large end of each baffle through hole is aligned with an air inlet of an air conditioner external unit, the small end of each baffle through hole is aligned with the heat extraction fan 3 and is an air outlet, and the aperture of each baffle through hole 14 is gradually reduced from the air inlet to the air outlet. When hot air from the air conditioner passes through, the baffle through hole 14 causes adiabatic expansion due to the reduction of the volume and the increase of the pressure, so that adiabatic temperature change of the hot air is caused, and the internal energy of the hot air is improved.
The heat exhaust fan 3 is fixedly connected to the inner wall of the outer body cover 1, is positioned in the center of the small end of the outer body cover 1, and is arranged between the heat collection baffle 2 and the hollow thin plate 4 to increase the flow speed of hot air and reduce the retention time of the hot air in the outlet area of the heat collection baffle 2. The heat exhaust fan 3 is not in contact with the heat collection baffle 2 and the hollow thin plate 4, and a certain distance is reserved between the heat exhaust fan and the heat collection baffle 2.
The hollow thin plate 4 is a hollow closed cuboid, and four sides of the hollow thin plate are fixedly connected with the inner wall of the outer body cover 1. Parallel to the heat collecting baffle 2. A plurality of fluid flow distribution plates 8 are arranged in the inner cavity of the hollow thin plate 4 at intervals, the fluid flow distribution plates 8 are arranged up and down and are parallel to each other, two adjacent fluid flow distribution plates 8 respectively extend towards the inner side walls of the hollow thin plate 4 facing each other, the extending ends are not in contact with the inner side walls of the hollow thin plate 4, and a certain distance is reserved between the extending ends and the inner side walls. Therefore, two adjacent fluid distribution plates 8 divide the inner cavity of the hollow sheet 4 into S-shapes, and a plurality of fluid distribution plates 8 divide the inner cavity of the hollow sheet 4 into successive S-shapes.
The hollow thin plate 4 is penetrated with a plurality of ventilation pipes 7 which are horizontally arranged, the ventilation pipes 7 are in a conical pipeline shape, the large end of each ventilation pipe 7 is an air outlet, the air outlet faces the outside of the small end of the outer body cover 1, the small end of each ventilation pipe is an air inlet, and the air inlet faces the heat exhaust fan 3. The ventilation pipes 7 pass through the inner cavity of the hollow thin plate 4 without contact and interference with the fluid distribution plate 8, and each ventilation pipe 7 is connected with the hollow thin plate 4 in a sealing mode. Thus, the water passage 9 is formed in the hollow thin plate 4 except for the ventilation pipe 7 and the fluid flow distribution plate 8. The air outlet and the air inlet of the ventilation pipe 7 are flush with the side wall of the hollow thin plate 4, namely the length of the ventilation pipe 7 is equal to the plate thickness of the hollow thin plate 4.
One end of the water inlet pipe 5 is connected with the inlet of the hollow thin plate 4, one end of the water outlet pipe 6 is connected with the outlet of the hollow thin plate 4, and the water inlet pipe 5 and the water outlet pipe 6 are communicated with the water channel 9 in the inner cavity of the hollow thin plate 4 and are connected with the hollow thin plate 4 in a sealing way. The other ends of the water inlet pipe 5 and the water outlet pipe 6 extend out of the outer body cover 1 and are connected with the water tank 12, so that the water inlet pipe 5, the water channel 9, the water outlet pipe 6, the water tank 12 and the water inlet pipe 5 form an annular closed water channel.
The hollow thin plate 4 is a single-layer side plate made of a heat conduction material with small specific heat capacity and facing the heat exhaust fan 3, if hexagonal boron nitride h-BN is adopted, other side plates are of a double-layer structure, an outer layer in the double-layer structure is made of a heat insulation material (such as Al2O3-SiO2 aerogel), and an inner layer is made of a heat conduction material (such as hexagonal boron nitride h-BN), so that the hollow thin plate 4 can quickly absorb heat exhausted by an air conditioner outdoor unit and lock the heat so as not to quickly lose the heat.
The material of the ventilation tubes 7 is the same as the heat conducting material of the inner layer of the hollow thin plate 4, and the ventilation tubes are distributed on the hollow thin plate 4 in an array and interval geometric mode.
The water inlet 5 and the water outlet 6 are both of a threaded structure which is convenient to be connected with a water pipe, the threaded structure is symmetrically distributed along the central axis of the hollow thin plate 4 from top to bottom, the water outlet 6 is arranged above the hollow thin plate, and the water inlet 5 is arranged below the hollow thin plate, so that the flowing time of water in the hollow thin plate 4 can be prolonged, and the heat absorption effect of the water is ensured. Water cannot flow into or out of the hollow sheet 4 by other means than the water inlet 5 and the water outlet 6.
The fluid flow distribution plate 8 is integrally of a solid cubic structure and is made of the same material as the heat conduction material of the inner layer of the hollow thin plate 4. The fixed end of the fluid splitter plate 8 is fixedly connected with the inner layer of the hollow thin plate 4, and the fluid splitter plate and the inner layer can be a whole piece due to the fact that the fluid splitter plate and the inner layer are made of the same material. The opposite side of the fixed end is an extending end of the fluid flow distribution plate 8, and the extending end adopts a rounded structure to reduce the impact of water flow on the fluid flow distribution plate 8. The fluid flow distribution plate 8 divides the inner cavity of the hollow thin plate 4, so that the water channels 9 are distributed in an S shape, the flowing effect of water in the water channels 9 on the hollow thin plate 4 is improved, the heat exchange time is prolonged, the heat exchange efficiency is improved, cold water flowing in the water channels 9 can fully absorb the internal heat of the hollow thin plate 4, and the water can better take away the heat on the hollow thin plate 4.
The whole single-layer structure that adopts of outer body cover 1, its material is for the thermal insulation material that can effectively prevent the heat transfer, can carry out an aggregation with the outer machine exhaust hot-blast of air conditioner, lets it can not outer loose, reduces the loss of energy in the hot-blast, can compress hot-blast volume under the small amplitude, the internal energy of wind in the collection.
The water tank 12 is a constant temperature water tank in which hot water for collecting heat absorbed from an air conditioner outdoor unit is stored, and the hot water is transferred to the water tank 12 through the hollow sheet 4 and the heat-insulating PVC water pipe 11. Hot water in the water tank 12 is pressurized by the micro-pump 13 and then flows into the water inlet 5 through the normal water pipe 10. The water tank 12 is of a two-layer vacuum structure and is provided with heat insulation structures such as heat insulation walls, a temperature sensor is installed at a position where the inner wall surface of the water tank is contacted with water, the bottom of the water tank 12 is provided with two water outlets, namely a No. 1 water outlet and a No. 2 water outlet, the two water outlets and the No. 2 water outlet are connected with a micro water pump 13 through a common water pipe 10, and the No. 2 water outlet is communicated with tap water through a water pipe. When the temperature sensor detects that the temperature of the water in the water tank 12 is lower than the set temperature, the No. 1 water outlet is opened and the No. 2 water outlet is closed, at the moment, the water in the water tank 12 is pumped into the hollow thin plate 4 through the micro water pump 13, and the water temperature can reach above the set temperature when the water heated by the hollow thin plate 4 flows into the water tank 12; at this time, the water outlet 1 is closed and the water outlet 2 is opened, so that the normal-temperature tap water flows into the micro water pump 13 and flows through the hollow thin plate 4, and the normal-temperature tap water is heated.
When the heat collecting baffle plate works, when hot air is discharged from an air conditioner external unit and enters the outer body cover 1, the flow direction and distribution of the hot air are more concentrated due to the blocking of the outer body cover 1, the hot air with unit cross section area is continuously reduced before entering the heat collecting baffle plate 2 due to the conical structure of the outer body cover 1, and the pressure intensity of gas fluid in the hot air is increased within a certain range according to the principle of fluid compressibility. The internal energy of the hot air can be improved before the hot air reaches the heat collecting baffle 2, and the heat transfer between the hot air and the cover can be reduced due to the adoption of the heat insulating material for the outer body cover 1, so that the energy loss is reduced. Pass through thermal-arrest baffle 2 after hot-blast guide through external body cover 1, because thermal-arrest baffle 2 is the solid cuboid sheet metal of the baffle through-hole 14 that distributes the toper, make it can regard as a porous stopper, consequently adiabatic inflation can take place when hot-blast through thermal-arrest baffle 2, because baffle through-hole 14's internal diameter diminishes to the air outlet by going into the wind gap gradually, so gaseous fluid's volume reduces in the hot-blast, let it compress the work because of external atmospheric pressure increases again, the inflation process turns into the internal energy, further promote hot-blast temperature. Because the heat collecting baffle 2 adopts heat insulating materials, the energy loss is reduced. After hot-blast guide through external body cover 1 and the heating with thermal-arrest baffle 2, collide with the front of hollow sheet 4 under heat extraction fan 3's effect, because hot-blast temperature is greater than the on-board temperature of hollow sheet 4, the heat transfer phenomenon can take place from this, part heat in the hot-blast will be shifted to inside the hollow sheet 4, discharge through ventilation pipe 7, in discharge process, because the internal diameter of ventilation pipe 7 is by air intake to air outlet by little grow, let the air increase the volume under this condition, take place the throttle inflation, at the heat transfer in-process again, the internal energy of gas can shift partly again to on the ventilation pipe 7 pipeline. When water is continuously pumped from the water inlet 5 under the action of the micro water pump 13, circulation flow is formed under the action of the fluid flow distribution plate 8, and finally, the water flows out from the water outlet 6. In the process, the water flow can be fully contacted with the surface of the water channel 9 in the hollow thin plate 4, and the water continuously absorbs the heat in the hollow thin plate 4 under the action of heat transfer due to the temperature difference between the water and the surface of the water channel 9. Therefore, after a cycle is completed, the waste heat of the air conditioner external unit is successfully collected, when cold water continuously flows in from the water inlet 5, the condensation effect is exerted, a large amount of heat which is directly discharged without being utilized is taken away, and the cold water is heated by the waste heat through heat transfer.
It is to be understood that the present invention is not limited to the procedures and structures described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.
Claims (9)
1. A device for collecting heat output by an air conditioner outdoor unit comprises an outer body cover (1) and a water tank (12), and is characterized in that: the outer body cover (1) is conical, the large end of the outer body cover is sleeved on an air conditioner outer machine, the inside of the small end is formed by arranging a heat collection baffle (2), a heat extraction fan (3) and a hollow thin plate (4) from the large end to the small end in parallel, the four sides of the heat collection baffle (2) and the hollow thin plate (4) are fixedly connected with the inner wall of the outer body cover (1), a plurality of baffle through holes (14) are uniformly distributed on the surface of the heat collection baffle (2), a plurality of vertically arranged and mutually parallel fluid flow distribution plates (8) are arranged in the inner cavity of the hollow thin plate (4) at intervals, two adjacent fluid flow distribution plates (8) respectively extend towards the mutually-facing inner side walls of the hollow thin plate (4), and the extending ends are not in contact with the inner side walls of the hollow thin; a plurality of ventilation pipes (7) which are horizontally arranged penetrate through the hollow thin plate (4), the ventilation pipes (7) do not contact with the fluid flow distribution plate (8) when penetrating through the inner cavity of the hollow thin plate (4), each ventilation pipe (7) is hermetically connected with the hollow thin plate (4), and water channels (9) are formed in the inner cavity of the hollow thin plate (4) except the ventilation pipes (7) and the fluid flow distribution plate (8); one end of the water inlet pipe (5) and one end of the water outlet pipe (6) are both communicated with a water channel (9) in the inner cavity of the hollow thin plate (4), and the other ends of the water inlet pipe and the water outlet pipe extend out of the outer body cover (1) and are connected with a water tank (12).
2. The apparatus as claimed in claim 1, wherein the heat collecting unit comprises: the baffle through hole (14) is a conical hole, the large end of the baffle through hole is aligned to form an air inlet for the air conditioner external unit, and the small end of the baffle through hole is aligned to form an air outlet for the heat exhaust fan (3).
3. The apparatus as claimed in claim 1, wherein the heat collecting unit comprises: heat extraction fan (3) fixed connection in the inner wall of ectosome cover (1), be located the inside center of ectosome cover (1) tip, heat extraction fan (3) and thermal-arrest baffle (2) and hollow sheet (4) all contactless.
4. The apparatus as claimed in claim 1, wherein the heat collecting unit comprises: the hollow thin plate (4) and the heat collection baffle (2) are parallel to each other, the ventilation pipe (7) is in a conical pipeline shape, the large end of the ventilation pipe is an air outlet, the air outlet faces the outside of the small end of the outer body cover (1), the small end of the ventilation pipe is an air inlet, and the air inlet of the ventilation pipe faces the heat extraction fan (3).
5. The apparatus as claimed in claim 4, wherein the heat collecting unit comprises: the air outlet and the air inlet of the ventilation pipe (7) are flush with the side wall of the hollow thin plate (4).
6. The apparatus as claimed in claim 1, wherein the heat collecting unit comprises: the side plate of the hollow thin plate (4) which is right opposite to the heat exhaust fan (3) is a single-layer side plate made of heat conduction materials, the other side plates are of a double-layer structure, the outer layer of the double-layer structure is made of heat insulation materials, and the inner layer of the double-layer structure is made of heat conduction materials; the fluid flow distribution plate (8) and the ventilation pipe (7) are made of the same heat conduction material as the inner layer of the hollow thin plate (4).
7. The apparatus as claimed in claim 1, wherein the heat collecting unit comprises: the water inlet (5) and the water outlet (6) are symmetrically distributed along the upper part and the lower part of the central axis of the hollow thin plate (4), the water outlet (6) is arranged above, and the water inlet (5) is arranged below.
8. The apparatus as claimed in claim 1, wherein the heat collecting unit comprises: the water outlet pipe (6) is connected with the inlet of the water tank (12) through a heat-preservation PVC water pipe (11), the water inlet pipe (5) is connected with the outlet of the water tank (12) through a common water pipe (10), and the common water pipe (10) is provided with a micro water pump (13).
9. The apparatus as claimed in claim 1, wherein the heat collecting unit comprises: the fixed end of the fluid flow distribution plate (8) is fixedly connected with the inner layer of the hollow thin plate (4), and the extending end opposite to the fixed end adopts a fillet structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010697590.3A CN111928460A (en) | 2020-07-20 | 2020-07-20 | Device for collecting heat output by air conditioner external unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010697590.3A CN111928460A (en) | 2020-07-20 | 2020-07-20 | Device for collecting heat output by air conditioner external unit |
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| Publication Number | Publication Date |
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| CN111928460A true CN111928460A (en) | 2020-11-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010697590.3A Pending CN111928460A (en) | 2020-07-20 | 2020-07-20 | Device for collecting heat output by air conditioner external unit |
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| Country | Link |
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| CN (1) | CN111928460A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113932337A (en) * | 2021-11-25 | 2022-01-14 | 南通长盈机电设备有限公司 | Air conditioner heat recovery energy-saving water heating equipment |
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| JP2011220588A (en) * | 2010-04-07 | 2011-11-04 | Chugoku Electric Power Co Inc:The | Heat exchange method by heat exchanger having built-in heater and electric water heater |
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| CN113932337A (en) * | 2021-11-25 | 2022-01-14 | 南通长盈机电设备有限公司 | Air conditioner heat recovery energy-saving water heating equipment |
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Application publication date: 20201113 |