CN211526672U

CN211526672U - Energy-saving water heating device for central air-conditioning refrigerating unit

Info

Publication number: CN211526672U
Application number: CN202020025030.9U
Authority: CN
Inventors: 汪金玲
Original assignee: Suzhou Mingyang Hvac Mechanical And Electrical Engineering Co ltd
Current assignee: Suzhou Mingyang Hvac Mechanical And Electrical Engineering Co ltd
Priority date: 2020-01-07
Filing date: 2020-01-07
Publication date: 2020-09-18
Anticipated expiration: 2030-01-07

Abstract

The utility model discloses an energy-saving water heating device for a central air conditioning refrigerating unit, which belongs to the technical field of air conditioners and comprises a refrigerating unit, wherein the refrigerating unit is fixedly connected with one end of a four-way valve through a sleeve type heat exchanger, the input end of the sleeve type heat exchanger is fixedly connected with the output end of a water softening box body, the output end of the sleeve type heat exchanger is fixedly connected with the input end of a hot water storage box body, the water softening device is fixedly arranged inside the water softening box body, the other end of the four-way valve is fixedly connected with one end of an expansion valve through a fin type tube heat exchanger, and the other end of the expansion valve is fixedly connected with a plate type heat exchanger, the waste heat is exchanged through the sleeve type heat exchanger, and the heat can be fully replaced, so that hot water is obtained, the waste of resources is reduced, and the energy-saving and environment-friendly effects are achieved.

Description

Energy-saving water heating device for central air-conditioning refrigerating unit

Technical Field

The utility model relates to an energy-conserving system hot water system, in particular to an energy-conserving system hot water system for central air conditioning refrigerating unit.

Background

The central air conditioner is a large-scale air conditioning system, which comprises a main machine and a tail end, wherein the main machine is divided into a water cooling unit and an air cooling unit, the tail end equipment mainly comprises an air conditioning unit and a fan coil, and the central air conditioner is also a Freon VRV air conditioning unit serving as a refrigerant. It is different from the common household air conditioner, and the central air conditioner can be used by large-scale buildings. The refrigerating unit (regeneration unit) is mainly composed of four parts of a refrigerating compressor, a condenser, an air cooler (evaporator) and an electromagnetic valve, and is additionally composed of an oil separator, a liquid storage barrel, an oil sight glass, a diaphragm type hand valve return filter and the like. The refrigeration compressor is the most important equipment in the refrigeration device and is generally called a main machine in the refrigeration device. The increase of the refrigerant vapor from low pressure to high pressure and the continuous flow and delivery of the vapor are all accomplished by the operation of the refrigeration compressor, that is, the refrigeration compressor functions as: first, refrigerant vapor is drawn from the evaporator to ensure a certain evaporation pressure within the evaporator. Next, the pressure is increased to compress the low pressure, low temperature refrigerant vapor into high pressure, high temperature superheated vapor to create conditions for condensation at higher temperatures (e.g., temperatures around 35 ℃ in summer). And finally, conveying and pushing the refrigerant to flow in the system to complete the refrigeration cycle.

The existing central air-conditioning refrigerating unit has the following defects in the working process of a hot water making device: 1) the heat exchange effect is poor, the total output of hot water is influenced, and a part of waste heat energy is wasted; 2) cold water is not softened before entering the heat exchange box, so that scale is easily generated in the heat exchange box, the heat exchange efficiency is influenced, the service life of the heat exchange box is shortened, and the economic cost is increased; 3) the hot water storage tank absorbing waste heat does not have a heat preservation function, so that water is easily cooled and cannot be fully utilized, and resource waste is caused.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an energy-conserving system hot water system device for central air conditioning refrigerating unit to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an energy-conserving system hot water system for central air conditioning refrigerating unit, includes refrigerating unit, refrigerating unit passes through the one end fixed connection of double pipe heat exchanger and cross valve, the input of double pipe heat exchanger and the output fixed connection of water softening box, the output of double pipe heat exchanger and the input fixed connection of hot water storage box, the fixed water softening device that is equipped with in inside of water softening box, the other end of cross valve passes through the one end fixed connection of fin tubular heat exchanger and expansion valve, the other end and the plate heat exchanger fixed connection of expansion valve.

As a preferred technical scheme of the utility model, plate heat exchanger's the other end pass through vapour and liquid separator with one of them opening fixed connection of cross valve, vapour and liquid separator's one end with refrigerating unit's one end fixed connection.

As a preferred technical scheme of the utility model, the top of water softening box one side alternates and is connected with the inlet tube, the opposite side of water softening box pass through circulating device with the output fixed connection of hot water storage box.

As a preferred technical scheme of the utility model, water softening installation includes many medium filter, the fierce filter of deironing and softens the jar, many medium filter with between the fierce filter of deironing with all communicate through U type pipe between the softening jar, the fixed softened water tank that is equipped with in one side of softening jar, the softening jar with through U type pipe intercommunication between the softened water tank, the fixed first liquid level switch that is equipped with in inside one side of softened water tank, the fixed force pump that is equipped with in top of softened water tank, the output of force pump with bushing type heat exchanger's input fixed connection.

As a preferred technical scheme of the utility model, circulating device includes connecting pipe and circulating pump, the fixed circulating pump that is equipped with in middle part of connecting pipe, the one end of connecting pipe and the bottom intercommunication of softening the water tank, the fixed solenoid valve that is equipped with of the other end of connecting pipe, the tip of the connecting pipe other end with the bottom intercommunication of hot water storage box one side.

As the utility model discloses a preferred technical scheme, the tank wall of hot water storage box includes two corrosion resistant plate, two one side that corrosion resistant plate corresponds is all fixed to be equipped with the foam insulation layer, and is two-layer vacuum cavity has been seted up between the foam insulation layer.

As a preferred technical scheme of the utility model, the fixed second liquid level switch in one side of hot water storage box inside, linking arm and temperature detect switch fixed connection are passed through on the inside top of hot water storage box, the fixed manometer that is equipped with in top of hot water storage box, the hot water storage box is kept away from the fixed drain pipe that is equipped with in top of circulating pump one side.

As an optimal technical scheme of the utility model, the middle part on U type pipe top is all fixed and is equipped with the ooff valve, U type pipe is made by corrosion-resistant rubber and plastic material.

Compared with the prior art, the utility model discloses following beneficial effect has:

1) the tap water is softened by the water softening device in the water softening box body and then enters the double-pipe heat exchanger, so that the softened water exchanges heat with the high-temperature high-pressure refrigerant, the double-pipe heat exchanger can fully recover waste heat energy, resources are fully utilized, energy is saved, the environment is protected, after a certain amount of hot water is stored in the hot water storage box, the heat is dissipated for the air conditioner through the finned pipe heat exchanger, and a large amount of heat is prevented from being dissipated slowly to damage the air conditioner;

2) the tap water entering the water softening box body sequentially passes through the multi-media filter, the iron removal fierce filter and the softening tank, so that the tap water can be filtered and softened, impurities in the water are greatly reduced, the hardness of the water is reduced, scale in the sleeve type heat exchanger is effectively prevented from being generated, the heat exchange efficiency is improved, and the utilization rate of waste heat energy is improved;

3) the hot water storage tank is used for storing hot water after heat exchange, the tank wall of the hot water storage tank comprises two layers of stainless steel plates, two layers of foam heat preservation layers and a vacuum cavity, so that the tank wall achieves the purpose of heat preservation, hot water storage time is prolonged, people can conveniently use hot water, and the hot water storage tank is used for monitoring the hot water amount and the hot water temperature in the hot water storage tank through a second liquid level switch and a temperature control switch which are arranged inside the hot water storage tank.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic view of the internal structure of the water softening tank of the present invention;

FIG. 3 is a schematic view of the internal structure of the hot water storage tank of the present invention;

FIG. 4 is a schematic view of the internal structure of the multi-media filter of the present invention;

fig. 5 is an enlarged schematic view of the position a of the present invention.

In the figure: 1. a refrigeration unit; 2. a double pipe heat exchanger; 3. a four-way valve; 4. a finned tube heat exchanger; 5. an expansion valve; 6. a plate heat exchanger; 7. a gas-liquid separator; 8. a water softening tank body; 9. a hot water storage tank; 10. a water inlet pipe; 11. a multi-media filter; 12. a strong iron removal filter; 13. a softening tank; 14. softening the water tank; 15. a U-shaped pipe; 16. an on-off valve; 17. a first liquid level switch; 18. a pressure pump; 19. a drain pipe; 20. a second liquid level switch; 21. a temperature control switch; 22. a pressure gauge; 23. an electromagnetic valve; 24. a circulation pump; 25. a stainless steel plate; 26. a foam insulation layer; 27. a vacuum cavity.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides an energy-saving water heater for a central air conditioning refrigerating unit, including a refrigerating unit 1, the refrigerating unit 1 is fixedly connected with one end of a four-way valve 3 through a double pipe heat exchanger 2, an input end of the double pipe heat exchanger 2 is fixedly connected with an output end of a water softening box 8, an output end of the double pipe heat exchanger 2 is fixedly connected with an input end of a hot water storage box 9, the water softening box 8 is fixedly provided with a water softening device inside, the other end of the four-way valve 3 is fixedly connected with one end of an expansion valve 5 through a fin pipe heat exchanger 4, the other end of the expansion valve 5 is fixedly connected with a plate heat exchanger 6, the other end of the plate heat exchanger 6 is fixedly connected with one of the through openings of the four-way valve 3 through a gas-liquid separator 7, one end of, The double-pipe heat exchanger 2, the four-way valve 3 and the gas-liquid separator 7 are sequentially connected to form a heat exchange loop, the top of one side of the water softening tank body 8 is connected with a water inlet pipe 10 in an inserting manner, the other side of the water softening tank body 8 is fixedly connected with the output end of a hot water storage tank 9 through a circulating device, the water inlet pipe 10 is used for being connected with external water supply equipment and used for heat exchange, the water softening device comprises a multi-medium filter 11, an iron removal fierce filter 12 and a softening tank 13, the space between the multi-medium filter 11 and the iron removal fierce filter 12 and the space between the iron removal fierce filter 12 and the softening tank 13 are communicated through a U-shaped pipe 15, a softening water tank 14 is fixedly arranged on one side of the softening tank 13, the space between the softening tank 13 and the softening water tank 14 is communicated through the U-shaped pipe 15, a first liquid level switch 17 is, the running water is sequentially filtered and softened by the multi-medium filter 11, the deironing strong filter 12 and the softening tank 13, impurities in the water are reduced, the generation of scale in each heat exchanger is greatly reduced, the service life of each heat exchanger is prolonged, better heat exchange efficiency is guaranteed, energy is saved, environment is protected, the circulating device comprises a connecting pipe and a circulating pump 24, the circulating pump 24 is fixedly arranged in the middle of the connecting pipe, one end of the connecting pipe is communicated with the bottom of the softening water tank 14, an electromagnetic valve 23 is fixedly arranged at the other end of the connecting pipe, the end part of the other end of the connecting pipe is communicated with the bottom of one side of the hot water storage tank 9, the water solution in the hot water storage tank 9 is reheated by the circulating pump 24, the hot water storage tank 9 is kept stable in water temperature, the work of the circulating pump 24, the corresponding sides of the two stainless steel plates 25 are fixedly provided with foam heat-insulating layers 26, a vacuum cavity 27 is arranged between the two foam heat-insulating layers 26, the heat-insulating property of the wall of the hot water storage tank 9 can be improved, the damage of energy consumption is reduced, one side inside the hot water storage tank 9 is fixedly provided with a second liquid level switch 20, the top inside the hot water storage tank 9 is fixedly connected with a temperature control switch 21 through a connecting arm, the top of the hot water storage tank 9 is fixedly provided with a pressure gauge 22, the top of the hot water storage tank 9 far away from one side of a circulating pump 24 is fixedly provided with a drain pipe 19, the second liquid level switch 20 is used for controlling the water level of the water solution in the hot water storage tank 9, the water temperature is monitored through the temperature control switch 21, the temperature control switch 21 is electrically connected with an electromagnetic valve 23, the, through being equipped with drain pipe 19 for the output of hydrothermal, the middle part on U type pipe 15 top all is fixed and is equipped with ooff valve 16, and U type pipe 15 is made by corrosion-resistant rubber and plastic material, through being equipped with ooff valve 16, convenient independent control, easily operation.

When in specific use, the utility model relates to an energy-conserving system hot water system device for central air conditioning refrigerating unit, after each component installation is accomplished, make each electric element and central air conditioning's controller electric connection, at refrigerating unit 1 during operation, air conditioner water gets into plate heat exchanger 6 and refrigerant heat transfer, the running water gets into among the double pipe heat exchanger 2 after softening through the water softening device in the water softening box 8, water softening device includes multi-media filter 11, deironing fierce filter 12 and softening tank 13, the running water loops through multi-media filter 11, deironing fierce filter 12 and softening tank 13, multi-media filter 11 is inside to be equipped with the micropore of a plurality of equidistant settings, be convenient for filter water, improve filtration efficiency, softened water gets into softened water tank 14 and stores, and monitor the change of water level through first liquid level switch 17, be convenient for manual operation stops the demineralized water, the water in the softened water tank 14 is pressed out into the double-pipe heat exchanger 2 through the pressure pump 18, so that the softened water exchanges heat with the high-temperature high-pressure refrigerant, waste heat energy can be recovered, resources can be fully utilized, the finned tube heat exchanger 4 is energy-saving and environment-friendly, the finned tube heat exchanger 4 stops working, when the hot water storage tank 9 stores enough hot water, the finned tube heat exchanger 4 works to discharge redundant heat outwards, the amount of the hot water in the hot water storage tank 9 is detected through the second liquid level switch 20, so that the finned tube heat exchanger 4 can work timely, excessive waste heat cannot be discharged, the wall of the hot water storage tank 9 has a certain heat preservation function, the loss of heat energy can be reduced, the use by people is facilitated, when the temperature of the hot water in the hot water storage tank 9 is reduced to a certain degree and is detected through the temperature control switch 21, the temperature control switch 21 controls the electromagnetic, the electromagnetic valve 23 controls the circulating pump 24 to work, the cooled water is pumped into the softened water tank 14 to exchange heat again, and the water can be reused, so that the purpose of saving water resources is achieved, and the water-saving device is economical and environment-friendly.

In the description of the present invention, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

In the present invention, unless otherwise explicitly specified or limited, for example, it may be fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an energy-conserving system hot water system for central air conditioning refrigerating unit, includes refrigerating unit (1), its characterized in that, refrigerating unit (1) is through the one end fixed connection of double pipe heat exchanger (2) and cross valve (3), the input of double pipe heat exchanger (2) and the output fixed connection of water softening box (8), the output of double pipe heat exchanger (2) and the input fixed connection of hot water storage box (9), the inside of water softening box (8) is fixed and is equipped with water softening device, the one end fixed connection of fin tubular heat exchanger (4) and expansion valve (5) is passed through to the other end of cross valve (3), the other end and plate heat exchanger (6) fixed connection of expansion valve (5).

2. An energy-saving water heating device for a central air-conditioning refrigerating unit as claimed in claim 1, characterized in that: the other end of the plate type heat exchanger (6) is fixedly connected with one of the through ports of the four-way valve (3) through a gas-liquid separator (7), and one end of the gas-liquid separator (7) is fixedly connected with one end of the refrigerating unit (1).

3. An energy-saving water heating device for a central air-conditioning refrigerating unit as claimed in claim 1, characterized in that: the top of one side of the water softening box body (8) is connected with a water inlet pipe (10) in an inserting mode, and the other side of the water softening box body (8) is fixedly connected with the output end of the hot water storage tank (9) through a circulating device.

4. An energy-saving water heating device for a central air-conditioning refrigerating unit as claimed in claim 1, characterized in that: water softening installation includes multimedium filter (11), the fierce filter of deironing (12) and softens jar (13), multimedium filter (11) with between the fierce filter of deironing (12) with all communicate through U type pipe (15) between softening jar (13), one side of softening jar (13) is fixed to be equipped with softens water tank (14), soften jar (13) with soften between water tank (14) through U type pipe (15) intercommunication, the fixed first liquid level switch (17) that is equipped with in one side of softening water tank (14) inside, the fixed pressure pump (18) that is equipped with in top of softening water tank (14), the output of pressure pump (18) with the input fixed connection of double pipe heat exchanger (2).

5. An energy-saving water heating device for a central air-conditioning refrigerating unit as claimed in claim 3, characterized in that: the circulating device comprises a connecting pipe and a circulating pump (24), the circulating pump (24) is fixedly arranged in the middle of the connecting pipe, one end of the connecting pipe is communicated with the bottom of the softened water tank (14), an electromagnetic valve (23) is fixedly arranged at the other end of the connecting pipe, and the end of the other end of the connecting pipe is communicated with the bottom of one side of the hot water storage tank (9).

6. An energy-saving water heating device for a central air-conditioning refrigerating unit as claimed in claim 1, characterized in that: the wall of the hot water storage tank (9) comprises two stainless steel plates (25), a foam heat-insulating layer (26) is fixedly arranged on one side corresponding to the two stainless steel plates (25), and a vacuum cavity (27) is formed between the foam heat-insulating layer (26).

7. An energy-saving water heating device for a central air-conditioning refrigerating unit as claimed in claim 5, characterized in that: the fixed second liquid level switch (20) of inside one side of hot water storage tank (9), the inside top of hot water storage tank (9) is through linking arm and temperature detect switch (21) fixed connection, the fixed manometer (22) that is equipped with in top of hot water storage tank (9), hot water storage tank (9) are kept away from the fixed drain pipe (19) that is equipped with in top of circulating pump (24) one side.

8. An energy-saving water heating device for a central air-conditioning refrigerating unit as claimed in claim 4, characterized in that: the middle of the top end of the U-shaped pipe (15) is fixedly provided with a switch valve (16), and the U-shaped pipe (15) is made of corrosion-resistant rubber and plastic materials.