CN201138025Y - An energy-saving circulating air-conditioning hot water multi-function machine with a water pump - Google Patents

Abstract

An energy-saving circulating air-conditioning hot water multi-function machine with a water pump is composed of two parts: an air-conditioning device and a hot water device. The air-conditioning unit is composed of a compressor, an outdoor finned heat exchanger, an energy-saving circulator, an indoor finned heat exchanger and other accessories; the hot water device is composed of an insulated hot water tank, a plate or casing fluorine water heat exchanger , water boiler, circulating water pump, controller and other accessories. The fluorine water heat exchanger is arranged outside the vertical hot water tank, and its waterway inlet is connected to the lower water outlet of the hot water tank through a circulating water pump, and its outlet is connected to the upper water inlet. The utility model adopts an energy-saving circulator, which greatly reduces the exhaust pressure of the compressor and improves the heating energy efficiency ratio (EER); the expansion valve adopts an expansion valve to ensure efficient and reliable operation in winter; It realizes the integration of multiple functions, high efficiency, energy saving, safe and reliable operation, and has outstanding advantages such as flexible installation, adaptability to regions and a wide range of climates.

Description

An energy-saving circulating air-conditioning hot water multi-function machine with a water pump

technical field

The utility model relates to an energy-saving circulating air-conditioning hot water multipurpose machine with a water pump, which adopts an energy-saving circulation to improve the refrigeration system, adopts a plate-type or sleeve-type or coil-type heat exchanger to prepare domestic hot water, and adopts a coil The utility model relates to a type heat exchanger for preparing boiling water and adopting a fluorine or water pipeline system to adapt to different regions or climate conditions, and belongs to the technical field of air source heat pump air conditioning and heating supply.

Background technique

Air conditioners, water heaters, and boiling water devices have various types and technologies as individual functional equipment, but each type of product will consume a large amount of primary or secondary energy when it works alone, and the economy is poor. Then there is no reliable mature product of any kind of energy saving so far that can combine the functions of three classes of daily household appliances into one.

Existing household air conditioners need to discharge a large amount of heat energy to the outside when cooling, and the average annual accumulative use time of air conditioners is generally very limited. In addition, there is no essential difference in the heating time in transitional seasons.

Among the water heaters widely used at present, electric water heaters consume a lot of energy and have high operating costs, gas water heaters have serious safety problems and are limited by gas sources, and solar water heaters are too affected by factors such as sunlight and space occupation. The heat pump water heater adopts the compressor refrigeration system to absorb heat from the outdoor air, and heats the tap water to the required temperature through the fluorine water heat exchanger to be used as domestic hot water. Its power consumption is only 1/4 of that of the electric water heater. The annual comprehensive operating cost is much lower than that of electric water heaters, and much lower than that of gas water heaters and solar water heaters. It is energy-saving, environmentally friendly, safe and reliable, easy to install, use and maintain, and is suitable for comprehensive promotion.

Most of the existing air source heat pump hot water and boiling water dual-purpose machines place the condenser for heating water in the hot water tank. Once the relevant part leaks or other failures occur, the refrigerant will enter the hot water tank Or the refrigeration system is flooded and difficult to repair.

Existing heat pump water heaters basically do not use energy-saving circulators. Because heating domestic hot water to the design temperature (generally around 50-60°C) requires a high condensation temperature, the exhaust pressure is high and the compression ratio is too large, especially It is more serious in winter conditions. On the one hand, the energy efficiency ratio EER (heating capacity/input power) is greatly reduced, which increases power consumption and deteriorates economy. On the other hand, the failure rate of compressors and other components increases and the life span is shortened. .

The smoldering heat exchange adopted by the existing heat pump water heater, which places the condenser in the water tank, has a low heat exchange capacity on the water side; while a few of them use the condenser outside the water tank, often due to the failure to achieve a good temperature in the water tank Stratification has a serious impact on system operation and performance indicators, and some structures are too complex to achieve better temperature stratification, and the temperature of the water body in the lower part of the water storage tank is low, and the volume utilization rate is poor.

Generally, electric heating, gas, etc. are often used to prepare boiling water. The former directly consumes a large amount of high-grade electric energy, and the latter also consumes high-grade primary energy, and the heat conversion rate of general household gas hoods is only about 20-30%. There is a high energy waste.

At present, the newly emerging heat pump technology on the market produces boiled water products, which use a greatly increased exhaust pressure to obtain an exhaust temperature exceeding 100°C to prepare boiled water. The compression ratio of the heat pump cycle is too large, resulting in a significant drop in energy efficiency ratio, and The area of the heat exchanger is too large, which makes the initial investment and operating costs of the equipment relatively high, and it is difficult to achieve the expected energy-saving effect. Therefore, it is actually far from a mature product that can be practically applied.

Contents of the invention

The purpose and task of this utility model is to creatively introduce the energy-saving refrigeration cycle technology in view of the above-mentioned various problems, make many improvements to the structure of the whole machine system, and realize high-efficiency, energy-saving, stable and reliable cooling, heating, and production of domestic hot water And the purpose of boiling water, and make the whole machine compact, easy to assemble and low cost.

For this reason, the utility model has designed a kind of energy-saving circulating type air-conditioning hot water multipurpose machine with water pump, and the complete machine is made up of two parts of air-conditioning device and heating device. The air conditioner is composed of a compressor (1), an outdoor finned heat exchanger (4), an energy-saving circulator (12), an indoor finned heat exchanger (15) and other accessories; Tank (16), plate or casing or coil fluorine water heat exchanger (2), water boiler (25), circulating water pump (24) and other accessories. The inlet end of the fluorine water heat exchanger (2) is connected to the outlet of the water boiler (25), and the outlet end is connected to the four-way valve (3); the inlet end of the water boiler (25) is connected to the outlet of the compressor (1); The inlet end of the heater (4) is connected with the four-way valve (3), and the outlet end is connected with the one-way valve group (6+7+8+9); the inlet end of the liquid receiver (10) is connected with the one-way valve group, and the outlet The end is connected with the inlet of the drier filter (11); the inlet end of the liquid side of the energy-saving circulator (12) is connected with the outlet of the drier filter (11), and the outlet end is connected with the inlet of the expansion valve (5) through the sight glass (13); The inlet end of the heat exchanger (15) is connected to the outlet of the throttling structure (5) through a one-way valve group; the inlet end of the steam side of the energy-saving circulator (12) is connected to the outlet of the indoor heat exchanger (15) through a four-way valve (3) , the outlet end is connected to the inlet end of the vapor-liquid separator (14); the outlet end of the vapor-liquid separator (14) is connected to the suction port of the compressor (1). There is no fluorine water heat exchanger in the domestic hot water storage tank, which avoids a series of problems caused by refrigerant leakage. Plate or casing or coil fluorine water heat exchanger (2) The inlet end of the waterway is connected to the lower water outlet (21) of the hot water tank (16) through a circulating water pump (24), and the outlet end is connected to the upper water inlet (20) Link to each other; Water boiler (25) waterway inlet (26) links to each other with hot water tank (16) top domestic hot water outlet (19), and outlet (27) sends boiling water by safety valve (28).

The energy-saving circulator (12) adopts an outer-finned coil type or a casing type or a plate type fluorine-fluorine heat exchanger. The use of an energy-saving circulator can effectively increase the exhaust temperature to maintain or even greatly increase the outlet water temperature level (hot water outlet temperature) range 35～100℃), and the energy efficiency ratio of the system is kept at a very high level, which is difficult for general air-cooled heat pumps and air source heat pumps to achieve hot water and boiling water dual-purpose machines, and the reduction of exhaust pressure can effectively reduce compressors, etc. The possibility of failure of each component and prolong the life of the whole machine.

The water boiler (25) adopts a coil type fluorine water heat exchanger, and the inlet water is taken from the water at a higher temperature on the upper part of the hot water tank, so as to reduce the heat exchange load of the water boiler. A safety valve (28) is provided on the outlet pipe to prevent safety problems caused by boiling vaporization.

The hot water tank (16) is an airtight pressure vessel, the cylinder is made of stainless steel inner wall, color steel outer wall and polyurethane foam insulation layer, the lower part is connected to the tap water inlet pipe (22), the upper part is connected to the domestic hot water outlet pipe (19), and the bottom is connected Drain pipe (23), and temperature sensor is set at the bottom of the tank, it is convenient to realize that the water body on the top of the temperature sensor is all heated to the required temperature level, greatly improves the utilization rate of the tank internal volume, and saves the space of the hot water tank. The tap water inlet and the bottom heating water outlet share the same water pipe, which makes the structure more compact and reasonable.

For models used in the northern region, the connecting pipe between the indoor unit and the outdoor unit is a refrigerant pipe, so there is no danger of the pipe being frozen and cracked in winter, and an auxiliary power supply can be installed on the air inlet of the air-cooled heat exchanger of the outdoor unit. The heater is used to facilitate the normal start-up of the refrigerator. In the southern region, you can choose the refrigerant or water pipeline system, and its compressor, fluorine water heat exchanger, etc. can be flexibly installed indoors or outdoors.

The utility model greatly improves the energy efficiency ratio, truly realizes the integration of three functions of air conditioning, hot water and boiling water, can be highly efficient, energy-saving, stable and reliable, has a long service life, is convenient for installation, use and maintenance, and has wide adaptability to regions and climates.

Description of drawings

Fig. 1 is the structural representation of the utility model.

The numbers and names of the parts in Figure 1 are as follows:

Compressor 1, fluorine water heat exchanger 2, four-way valve 3, outdoor heat exchanger 4, expansion valve 5, one-way valve group 6+7+8+9, liquid receiver 10, dry filter 11, energy-saving cycle Device 12, sight glass 13, vapor-liquid separator 14, indoor heat exchanger 15, heat preservation hot water tank 16, low pressure gauge 17, high pressure gauge 18, domestic hot water outlet pipe 19, domestic hot water inlet pipe 20, hot water Tank bottom outlet pipe 21, tap water supply pipe 22, drain pipe 23, circulating water pump 24, water boiler 25, water boiler inlet pipe 26, water boiler outlet pipe 27, safety valve 28,.

Detailed ways

The utility model will be further described below in conjunction with the accompanying drawings and specific implementation and application examples.

Accompanying drawing 1 is the whole machine structure schematic diagram of the present utility model.

The whole machine is composed of two parts: air conditioning unit and hot water unit. The air conditioner is composed of a compressor (1), an outdoor finned heat exchanger (4), an energy-saving circulator (12), an indoor finned heat exchanger (15) and other accessories; Tank (16), plate or casing or coil fluorine water heat exchanger (2), water boiler (25), circulating water pump (24) and other accessories. The inlet end of the fluorine water heat exchanger (2) is connected to the outlet of the water boiler (25), and the outlet end is connected to the four-way valve (3); the inlet end of the water boiler (25) is connected to the outlet of the compressor (1); The inlet end of the heater (4) is connected with the four-way valve (3), and the outlet end is connected with the one-way valve group (6+7+8+9); the inlet end of the liquid receiver (10) is connected with the one-way valve group, and the outlet The end is connected with the inlet of the drier filter (11); the inlet end of the liquid side of the energy-saving circulator (12) is connected with the outlet of the drier filter (11), and the outlet end is connected with the inlet of the expansion valve (5) through the sight glass (13); The inlet end of the heat exchanger (15) is connected to the outlet of the throttling structure (5) through a one-way valve group; the inlet end of the steam side of the energy-saving circulator (12) is connected to the outlet of the indoor heat exchanger (15) through a four-way valve (3) , the outlet end is connected to the inlet end of the vapor-liquid separator (14); the outlet end of the vapor-liquid separator (14) is connected to the suction port of the compressor (1). There is no fluorine water heat exchanger in the domestic hot water storage tank, which avoids a series of problems caused by refrigerant leakage. Plate or casing or coil fluorine water heat exchanger (2) The inlet end of the waterway is connected to the lower water outlet (21) of the hot water tank (16) through a circulating water pump (24), and the outlet end is connected to the upper water inlet (20) Link to each other; Water boiler (25) waterway inlet (26) links to each other with hot water tank (16) top domestic hot water outlet (19), and outlet (27) sends boiling water by safety valve (28). The energy-saving circulator (12) adopts an outer-finned coil type or a casing type or a plate type fluorine-fluorine heat exchanger. The water boiler (25) adopts a coil type fluorine water heat exchanger, and the water inlet is taken from the water at a higher temperature on the top of the hot water tank, and a safety valve (28) is set on the outlet pipe to prevent safety problems caused by boiling and vaporization. The hot water tank (16) is an airtight pressure vessel, the cylinder is made of stainless steel inner wall, color steel outer wall and polyurethane foam insulation layer, the lower part is connected to the tap water inlet pipe (22), the upper part is connected to the domestic hot water outlet pipe (19), and the bottom is connected Drain pipe (23), and temperature sensor is set at the very bottom in the tank, tap water inlet and bottom heating water outlet share a water pipe, so that the structure is more compact and reasonable.

The utility model can realize the following five working modes: separate cooling, separate heating, separate production of domestic hot water (and boiling water), simultaneous cooling and production of domestic hot water (and boiling water), simultaneous heating and production Domestic hot water (and boiling water), etc.

Now take the advantage of the mode of separately producing domestic hot water (and boiling water) to describe its working process in detail as follows:

(a) Preparation: Fill the hot water tank with water, and ensure that the temperature at the bottom of the water body in the tank is lower than the set value.

(b) Start: The control system first starts the outdoor heat exchanger fan and water pump, and then starts the compressor for heat pump cycle, while the indoor heat exchanger fan does not start.

(c) Heating: The refrigerant cycle process is as follows: the compressor absorbs less heat than the gaseous refrigerant and compresses, discharges high-temperature and high-pressure superheated steam, enters the water boiler and fluorine water heat exchanger to release heat to hot water, and becomes high-temperature and high-pressure steam The liquid refrigerant, through the dry filter to remove the dirt and water that may be carried, then enters the energy-saving circulator and is cooled by low-temperature steam, and the supercooled liquid is throttled and reduced to become a low-temperature low-pressure vapor-liquid two-phase with low dryness It enters the evaporator to absorb the heat of the air outside the evaporator, evaporates into a low-temperature and low-pressure gaseous refrigerant, and then exchanges heat with the high-temperature liquid refrigerant from the energy-saving circulator and the fluorine water heat exchanger to become a medium-temperature and low-pressure superheated steam, and It is sucked into the compressor to continue the next cycle. The domestic hot water heating process is as follows: the circulating water pump sucks in low-temperature water through the outlet pipe at the lower part of the hot water tank and sends it to the fluorine water heat exchanger. After the water is heated to the required temperature, it enters the hot water tank through the inlet pipe at the upper part of the hot water tank. , the water drops slowly and evenly in the tank, the temperature-changing layer divides the water into the upper high-temperature water body and the lower low-temperature water body, and the position of the insulation layer gradually moves down until the heating process is completed when it drops to the position of the temperature sensor, and the heat pump system automatically stops at this time run.

(d) Access: domestic hot water can be taken through the upper outlet pipe, and the position of the insulation layer in the tank will rise accordingly. After a certain period of time, the heat pump system will automatically start to run, heat the mixed water of tap water and hot water tank outlet to the required temperature and send it to the upper part of the hot water tank, and ensure that the outlet water temperature is at the required level.

(e) Out of service: When the domestic hot water is stopped, the heat pump system continues to run for a period of time until the position of the insulation layer is lowered to the position of the temperature sensor, that is, the hot water tank is full again, and the heat pump stops operating.

(f) Boiled water: When producing boiled water, take water from the domestic hot water outlet on the upper part of the hot water tank, heat it by smoldering with high-temperature steam in the pipe, and take it when it reaches the required temperature.

Among the other 4 working modes, the independent cooling and independent heating modes have the same working process as ordinary household cooling and heating air conditioners, except that the exhaust pressure is adjusted to a lower level to ensure that the exhaust temperature is far below 100°C, and the water heater part is related Components stop working and are in a state of smoldering heat preservation. In the mode of cooling and producing domestic hot water (and boiling water) at the same time, the indoor heat exchanger is an evaporator, and the water boiler, water heater and outdoor heat exchanger form a series connection of the condensing part of the refrigerant system. In the mode of simultaneously heating and producing domestic hot water (and boiling water), the outdoor heat exchanger is an evaporator, and the water boiler, water heater and indoor heat exchanger form a series connection of the condensing part of the refrigerant system.

Claims (2)

1, a kind of cycles, economized type air conditioning hot boiling water multiple purpose aeroplane with water pump, complete machine is divided into aircondition and hot water apparatus two parts, it is characterized in that fluorine water-to-water heat exchanger (2) fluorine road entrance point links to each other with boiler (25) outlet, and the port of export links to each other with cross valve (3); Boiler (25) entrance point links to each other with compressor (1) outlet; Outdoor heat exchanger (4) entrance point links to each other with cross valve (3), and the port of export links to each other with check valve group (6+7+8+9); Reservoir (10) entrance point links to each other with the check valve group, and the port of export links to each other with device for drying and filtering (11) import; The outlet of cycles, economized device (12) liquid side-entrance end and device for drying and filtering (11) links to each other, and goes out the beginning to link to each other with expansion valve (5) import through liquid-sighting glass (13); Indoor heat exchanger (15) entrance point links to each other with throttle structure (5) outlet by the check valve group; Cycles, economized device (12) vapour side-entrance end links to each other with indoor heat exchanger (15) outlet by cross valve (3), and the port of export links to each other with vapour liquid separator (14) entrance point; Vapour liquid separator (14) port of export links to each other with compressor (1) air entry, and fluorine water-to-water heat exchanger (2) water route entrance point links to each other with hot-water cylinder (16) bottom delivery port (21) by water circulating pump (24), and the port of export links to each other with top water inlet (20); Boiler (25) water route import (26) links to each other with hot-water cylinder (16) top domestic hot-water outlet (19), and outlet (27) is sent boiling water by safety valve (28).

2, the cycles, economized type air conditioning hot boiling water multiple purpose aeroplane of band water pump as claimed in claim 1, it is characterized in that described cycles, economized device (8) adopts external fin coiled or bushing type or board-like fluorine fluorine heat exchanger, that heating domestic hot-water's fluorine water-to-water heat exchanger (2) adopts is board-like, bushing type or fluorine water pond tubular structure, boiler (25) adopts fluorine water pond tubular structure, indoor cooling and Heat supply and heat exchange device (15) adopt fin structure, and outdoor neither endothermic nor exothermic heat exchanger (4) adopts fin structure.