CN115264657A - Heat pump type water medium geothermal, ground cooling and semi-air cooling three-supply system - Google Patents
Heat pump type water medium geothermal, ground cooling and semi-air cooling three-supply system Download PDFInfo
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- CN115264657A CN115264657A CN202210913030.6A CN202210913030A CN115264657A CN 115264657 A CN115264657 A CN 115264657A CN 202210913030 A CN202210913030 A CN 202210913030A CN 115264657 A CN115264657 A CN 115264657A
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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
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
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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
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
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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
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
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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
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/22—Means for preventing condensation or evacuating condensate
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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
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
- F24F5/001—Compression cycle type
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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
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0046—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater using natural energy, e.g. solar energy, energy from the ground
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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
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/22—Means for preventing condensation or evacuating condensate
- F24F2013/221—Means for preventing condensation or evacuating condensate to avoid the formation of condensate, e.g. dew
Abstract
A heat pump type water medium geothermal, ground cooling and semi-air cooling three-supply system belongs to the technical field of room heat pump air conditioning water medium ground heating and refrigerating, and comprises a host machine, a ground supply system, a wall-mounted unit, a ground supply control valve connecting pipe structure and a control system. The invention adopts a two-stage three-supply system, and the first stage is an integral air source heat pump air conditioning system for refrigeration and heating; the second stage is single heat supply of a water medium carrier terminal ground supply system and double cold supply of a wall hanging machine and ground supply system; 1 or more than 1 room, each room is respectively provided with 1 wall hanging machine and 1 ground supply system, 1 host machine is shared, and 1 set of ground supply control valve connecting pipe structure and 1 set of control system; the invention has the beneficial effects that: avoiding ground condensation, reducing equipment investment cost, saving energy and introducing fresh air.
Description
Technical Field
The invention relates to a heat pump type water medium cooling or heating system, in particular to a room heat pump type water medium geothermal, ground cooling and semi-air cooling three-supply system, belonging to the technical field of room heat pump air conditioning water medium ground heating and refrigerating.
Background
Because the heat pump type geothermal heating is not suitable for ground cooling and refrigerating, a dual-supply system adopting the heat pump type geothermal heating and air refrigerating of a heating pump is difficult to apply up to now. At present, more modes of electric geothermal heating or gas furnace geothermal heating and single refrigeration air-conditioning refrigeration are adopted, and the two types of geothermal heating have larger hidden danger and higher use cost in safety.
Under the increasingly popular environment of room air conditioners, the room air conditioners have the problems of high noise, high power consumption, instability of heating and cooling and sensitivity of people to cold and heat. The heat is transmitted to the air conditioner, namely, hot air rises and cold air sinks, the upper half space is an unmanned area, and a large amount of energy is wasted due to the transmission of cold or heat of the conventional wall-mounted air conditioner. In recent years, a new trend of geothermal heating is developed, geothermal heating saves energy by 60 percent compared with electric geothermal heating and saves energy by more than 30 percent compared with space heating, but a refrigerating system cannot be used due to the problem of condensed water pollution.
The heat pump terrestrial heat is a mature technology for energy-saving winter heating, but the refrigerating function of a heat pump air conditioner cannot be applied to ground cooling, and the main reason is that the cold energy of the heat pump ground cooling cannot be uploaded to cause ground condensed water and harm to air of feet of a human body due to cold and damp. The single heat pump type aqueous medium geothermal system is large in size, a refrigerating system cannot be used due to the problem of condensed water pollution, another set of single refrigerating air conditioner is required for refrigerating a room in summer, and initial installation cost is increased.
Ground refrigeration is adopted in summer, the air temperature is high in summer, the air humidity is large, the relative humidity can reach 100% in rainy days in high-humidity climate, and condensation is possible as long as the ground temperature of ground refrigeration is lower than the air temperature above the ground. The ground airspace and the room airspace have larger temperature gradients, and the temperature of the ground airspace is easily lower than the dew point temperature of the ground airspace, so that ground condensation is caused.
The ground temperature is the lowest in pure ground refrigeration, although indoor air has the characteristic of convection heat transfer, the ground low temperature is difficult to upload, the moisture content of a room is concentrated on the ground, the ground relative humidity reaches a condensation state, the ground is condensed, the ground layer air relative humidity is close to a saturation state, and both feet of a person are soaked in cold and dampness for a long time, so that the person is infected with rheumatism, and the body health is influenced.
Disclosure of Invention
The invention aims to overcome the defects that in the prior art, a single heat pump type aqueous medium geothermal system is large in size, a refrigerating system cannot be used due to the problem of condensed water pollution, another single refrigerating air conditioner is required for refrigerating a room in summer, and the initial installation cost is increased.
In order to achieve the aim, the invention adopts the technical scheme that: the heat pump type water medium geothermal, ground cooling and semi-air cooling three-supply system comprises a host machine, a wall hanging machine, a ground supply control valve connecting pipe structure, a ground supply system and a control system; the main machine adopts a heat pump type water medium central air conditioning system and is a cold and heat source dual-supply system, and the main machine comprises a main machine internal structure and a main machine shell; the internal structure of the main machine comprises a compressor, a reversing valve, a shell-and-tube condenser, a capillary tube, an evaporator, a working medium tube, a water pump, a water tank, a water return valve, a sewer pipe, a reclaimed water pipe, a water feeding pipe, a water outlet valve, a fan, a refrigerating or heating working medium and a water medium; the compressor, the reversing valve, the shell-and-tube condenser, the capillary tube and the evaporator are mutually connected through a working medium tube to form a refrigerating working medium circulation loop or a heating working medium circulation loop; the operation of the main machine comprises a refrigeration mode or a heating mode, wherein in the heating mode, a heating working medium flows along the direction of the compressor, the reversing valve, the shell-and-tube condenser, the capillary tube and the evaporator in the anticlockwise direction and returns to the direction of the compressor; in the refrigeration mode, the refrigeration working medium flows clockwise on the contrary; the shell-and-tube condenser comprises a coil pipe and a condensing working medium pipe penetrating through the coil pipe; the water pump is arranged below the shell-and-tube condenser, the water tank is arranged on one side of the water pump, the water return valve is arranged on one side of the water tank, the other side of the water tank is connected with an inlet of the water pump through a sewer pipe, an outlet of the water pump is connected with the lower end of the coil pipe through a middle water pipe, and the upper end of the coil pipe is connected with the water outlet valve through an upper water pipe;
the ground supply system comprises a heat-insulation partition plate, cold and hot water pipes, pouring cement, a PVC floor paste and floor tiles, wherein the heat-insulation partition plate, the pouring cement, the PVC floor paste and the floor tiles are sequentially laid on the ground of a room from bottom to top; the heat-insulating partition plate can prevent heat transfer to downstairs, so that energy loss is avoided; the cold and hot water pipes are arranged in groups and are uniformly embedded in the poured cement, and the cold and hot water pipes and the poured cement form a fixed water supply pipe group; the water supply amount of each pipe group is distributed by adopting a water separator, and the return water of each pipe group flows back to the water tank after being collected by the water collector; the diameter of the cold and hot water pipe is 16-24mm, and the laying distance of the cold and hot water pipe is 100-140mm; the thickness of the heat-insulation partition board is 30-60mm, the thickness of the poured cement is 18-22mm, the thickness of the PVC floor paste is 4-6mm, and the thickness of the floor tile is 18-22mm; the hot and cold water pipes are internally provided with cold and hot water with 20-60 ℃ of water medium, and the temperature difference exceeds that of a single geothermal water pipe;
the wall hanging machine comprises a wall hanging machine internal structure and a wall hanging machine shell, wherein the wall hanging machine internal structure is arranged in the wall hanging machine shell; the host machine provides a high-temperature water flow heat source or a low-temperature water flow cold source for the ground supply system through the ground supply control valve connecting pipe structure, provides a low-temperature water flow cold source for the wall hanging machine, and can heat a room in winter and refrigerate the room in summer; the wall-mounted unit and the ground supply system are tail end devices of a cold and heat source double supply system; the width of the wall hanging machine is 300-500mm, the height of the wall hanging machine is 300-500mm, and the thickness of the wall hanging machine is 100-200mm;1 wall-mounted unit and 1 ground supply system are respectively arranged in each room, 1 host is shared, and 1 set of ground supply control valve connecting pipe structure and 1 set of control system are arranged in 1 or more than 1 room;
the inner structure of the wall hanging machine comprises a volute, a plastic package motor, a cross flow fan, a fresh air valve, a finned tube heat exchanger and a filter; the volute is arranged at the lower part of the wall-mounted machine shell, the plastic package motor and the transverse flow fan are arranged in the volute, and the plastic package motor is rotationally connected with the transverse flow fan; the fresh air valve, the finned tube heat exchanger and the filter are sequentially arranged from front to back and are arranged above the volute; the water inlet pipe and the water outlet pipe of the finned tube heat exchanger are respectively arranged at two sides of the bottom of the finned tube heat exchanger; under the action of the plastic package motor and the cross flow fan, indoor hot air enters the finned tube heat exchanger through the filter to become cold air and is discharged by the cross flow fan; the fresh air valve has the functions that: the fresh air quantity can be adjusted, the changeable low-temperature fresh air quantity can be supplied to the indoor, the normal-temperature fresh air quantity can be supplied when the air is not cooled or heated, and the fresh air valve can be closed when the fresh air is not used.
The ground supply control valve connecting pipe structure comprises a water inlet pipe, a shunt tee joint, a short circuit valve, a confluence tee joint, a hook-connecting valve, a ground supply water inlet valve, a ground supply system water inlet pipe, a water separator, a water collector and a ground supply system water outlet pipe; the inlet of the water inlet pipe is connected with a water outlet valve of the host; the outlet of the water inlet pipe of the ground supply system is connected with the water separator, and the ground supply system comprises a plurality of ground water supply pipe groups connected in parallel; one end of each of the plurality of ground water supply pipe groups is connected with the water separator, the other end of each of the plurality of ground water supply pipe groups is connected with the water collector, the water collector is connected with an inlet of a water outlet pipe of the ground supply system, and an outlet of the water outlet pipe of the ground supply system is connected with a water return valve of the host; when the short-circuit valve is switched on, hot water from a shell-and-tube condenser is directly supplied to the system; the outlet end of the water inlet pipe is connected with the inlet of the flow-dividing tee joint; the left side pipe of the shunt tee joint is connected with the upper measuring pipe of the confluence tee joint through a short-circuit valve, the outlet at the other side of the shunt tee joint is connected with the water inlet pipe of the wall-mounted machine through a hanging machine valve, the water outlet pipe of the wall-mounted machine is connected with the inlet at the other side of the confluence tee joint, and the outlet of the confluence tee joint is connected with the inlet of the water inlet pipe of the ground supply system through a ground supply water inlet valve;
the invention adopts a two-stage three-supply system, and the first stage is an integral air source heat pump air conditioning system for refrigerating and heating; the second stage is single heat supply of a water medium carrier terminal ground supply system and double cold supply of a wall hanging machine and ground supply system; the summer temperature difference type water medium secondary and tertiary supply system control mode is carried out by a host, a wall-mounted machine, a ground supply control valve connecting pipe structure, a ground supply system and a control system; in summer, the main air conditioner system starts a refrigeration mode, a compressor and a water pump are started through a control system, a working medium for refrigeration flows in a clockwise direction to start running in a circulating loop, and hot air generated by an evaporator is discharged to the outside; the cold energy generated by the shell-and-tube condenser is transmitted to the water medium, the water outlet valve and the water return valve are opened, the on-hook valve is opened, the ground water supply inlet valve is opened, and the short circuit valve is closed; under the action of a water pump, normal-temperature water in a water tank flows through a shell-and-tube condenser, normal-temperature water is reduced to 5-7 ℃ low-temperature cold water, the cold water is discharged to a water inlet pipe from a water outlet valve, is discharged to an on-hook valve from a right pipe of a shunt three-way pipe, passes through the on-hook valve, and is sequentially led to wall hanging machines in the midair from top to bottom, finned tube heat exchangers in the wall hanging machines are used for exchanging cold and heat, indoor circulating air of the heat exchangers is cooled to a comfortable temperature, and is discharged to an indoor lower half airspace under the action of a cross flow fan, and meanwhile, air in a ground airspace is cooled; the low-temperature cold water in the wall-mounted unit absorbs heat and rises into medium-temperature cold water, and the medium-temperature cold water is discharged to a ground supply water inlet valve of a ground supply system and enters a water separator through a water inlet pipe of the ground control system; the water separator divides the cold water into each water supply pipe group in a parallel connection mode, the cold water is naturally transmitted to a ground airspace, the air in the ground airspace is cooled to a comfortable temperature in a dry mode, and the air is converged with indoor circulating cold air passing through the wall-mounted machine heat exchanger to create a comfortable environment airspace; the medium-temperature cold water of each water supply pipe group absorbs the heat of the floor tiles and the air in the ground airspace and then is heated to be normal-temperature water, the medium-temperature cold water transfers heat and cold to the floor tiles through water pipes, the ground temperature is higher than the low temperature of the ground airspace, the cold transfer temperature of the medium-temperature cold water in the ground is higher than the low-temperature air in the ground airspace, and the ground cannot be condensed; normal temperature water of each water supply pipe group is collected to the water collector and flows back to the water tank through a water outlet pipe and a water return valve of the ground supply system;
in summer, the condenser is changed into an evaporator, the direction of the working medium is changed by the reversing valve, but the medium water still runs in the original direction, and the medium water and the working medium flow in the same direction; the evaporation process of the working medium in the evaporator is isothermal evaporation, the reverse direction and the same direction are not greatly different, but in the actual operation of the evaporator, the flow resistance exists, the evaporation temperature is reduced, the evaporation temperature at the outlet of the evaporator is the lowest, the medium water and the working medium flow in the same direction, and the water medium can obtain the lowest temperature. During refrigeration, the lower temperature is used as the heat transfer effect with the maximum heat transfer;
the circulation process of the water medium in the heat pump type water medium geothermal, ground cooling and semi-air cooling three-supply system comprises the following steps: in summer refrigeration, the short circuit valve is closed, normal-temperature water in the water tank is cooled by the shell-type condenser to become cold water at the temperature of 5-7 ℃, the cold water is sent to the wall hanging machine through the hook valve under the action of a water pump, the cold water is conveyed to the room semi-airspace in the forward direction to the ground, the cold water absorbs heat and is heated by the wall hanging machine to become cold water, the cold water is sent to a ground supply system, the cold water is conveyed to the floor tiles and the ground airspace, the floor tiles and the ground airspace are cooled to a set temperature, the temperature of the cold water in the ground supply system can absorb heat and be raised to become normal-temperature water, and the purpose of creating a high-middle-low-step healthy small temperature difference airspace under the room semi-airspace is achieved; because the half airspace of the room is also in a small gradient of cooling from top to bottom, the temperature of the ground airspace is slightly higher than that of the half airspace, the ground airspace cannot reach the dew point temperature, and the ground cannot condense water; the temperature gradient is more suitable for the health temperature of the human body from slightly cooling feet to cool head; after losing the refrigeration function, the normal temperature water flows back to the water tank through the water outlet pipe of the ground supply system, the normal temperature water in the water tank is cooled by the pipe shell type condenser and is recovered to 5-7 ℃ cold water, and the cold water is sent to the wall-mounted unit through the wall-mounted unit valve under the action of the water pump to carry out new circulation;
the compressor comprises a port A and a port B, and the reversing valve comprises a port C, a port D, a port E and a port F; the interface A, the interface C, the interface E, the shell-and-tube condenser, the capillary tube, the evaporator, the interface F, the interface D and the interface B are sequentially connected with each other through working medium tubes to form a heating working medium circulation loop flowing in the anticlockwise direction, and the interface A, the interface C, the interface F, the evaporator, the capillary tube, the shell-and-tube condenser, the interface E, the interface D and the interface B are sequentially connected with each other through the working medium tubes to form a refrigerating working medium circulation loop flowing in the clockwise direction; the refrigerating and heating working medium in the working medium circulation loop for refrigerating or heating is the working medium R410A.
The host shell comprises a front panel, a rear panel, a left side plate, a right side plate and a top cover plate, an air inlet window A arranged on the top cover plate, an air outlet window A arranged on the front panel, and a water return valve and a water outlet valve arranged at the bottom of the left side plate.
The ground supply system comprises a ground water supply pipe group A, a ground water supply pipe group B and a ground water supply pipe group C; the heat-insulating partition board is a high-density hard polystyrene foam board with the heat conductivity coefficient equal to 0.05w/m.k or an extruded board; the cold and hot water pipes are PE-RE steel-plastic composite pipes for cold and hot use or aluminum-plastic composite pipes, the diameter of the cold and hot water pipes is 20mm, and the laying distance of the cold and hot water pipes is 110mm; the thickness of the heat-insulation partition board is 48mm, the thickness of the poured cement is 20mm, and the thickness of the PVC floor paste is 5mm; the floor tiles are marble, floor tiles or composite floors, and the thickness of each floor tile is 20mm; the water pipe groups are fixedly installed by staples, buckles and the like, and cement is poured between the water pipes of the water pipe groups and the space between the water pipes and the peripheral wall foot for fixing; the water pipe group can bear the expansion and contraction deformation of cold water and hot water at the temperature of 20-60 ℃, and the outer surface of the water pipe is in contact with cement, sealed and fixed under the condition of sealed cement pouring and fixing;
the expansion coefficient of the steel-plastic composite water pipe is 180 multiplied by 10 < -6 > m/m DEG C, when the temperature difference is 60 ℃ in the diameter direction, the expansion is 0.2mm, the expansion is very small, too large gaps cannot be formed between the outer surface of the water pipe and the cement sealing surface, air thermal resistance and water accumulation cavities for the heat transfer of water medium to the cement cannot be formed, and the purpose of dry heat transfer is achieved.
The wall hanging machine shell comprises a shell body, a panel arranged at the front lower part of the shell body, an air inlet window B arranged at the front upper part of the shell body and an air outlet window B arranged at the middle part of the panel; the width of the wall hanging machine is 400mm, the height of the wall hanging machine is 400mm, and the thickness of the wall hanging machine is 150mm; the filter includes a general purification filter, an electrostatic air purifier or an anion air purifier.
The operation modes of the heat pump type water medium geothermal, ground cooling and semi-air cooling three-supply system further comprise a fresh air and air purifier air supply system control mode, and the fresh air and air purifier air supply system control mode is carried out according to the structure of the wall hanging machine and the control system; when a common purifying filter is adopted, a fresh air valve, a plastic package fan and a transverse flow fan of the wall-mounted unit are opened, so that fresh air can be supplied to the indoor space, and indoor circulating air can be treated; because the system has a semi-airspace refrigeration technology, conditions are provided for supplying fresh air and purifying air for a geothermal system and a central air conditioner, the system can adjust the fresh air volume, the fresh air volume can be adjusted according to the indoor personnel and the oxygen supply load, and the fresh air load of the personnel is 1 person and 30m3H; the filter is a common air purifier, an electrostatic air purifier or an anion air purifier, and for the electrostatic air purifier or the anion air purifier, the power supply of the purifier is turned on, and the cross flow fan is turned on to purify indoor circulating air; can provide fresh air all weatherAnd air purification of the whole room, no matter heating, refrigerating or not heating and not refrigerating, can supply fresh air and purify the air of the whole room.
The operation modes of the heat pump type water medium geothermal, ground cooling and semi-air cooling three-supply system also comprise a winter geothermal type direct air heating system control mode, wherein the winter geothermal type direct air heating system control mode is carried out by using a host machine, a ground supply control valve connecting pipe structure, a ground supply system and a control system; the system of the host air conditioner is started in a heating mode in winter, a compressor and a water pump are started through a control system, a working medium circulation loop for heating starts to operate, and cold air generated by an evaporator is discharged to the outside; the heat generated by the shell-and-tube condenser is transmitted to a water medium, the water outlet valve and the water return valve are opened, the on-hook valve is closed, the ground water supply inlet valve is opened, and the short circuit valve is opened; under the action of a water pump, low-temperature water in a water tank flows through a shell-and-tube condenser and is heated to 60 ℃ hot water, the hot water is discharged from a water outlet valve to a water inlet pipe and is discharged from a left pipe of a shunt three-way pipe to a short-circuit valve, and the hot water passes through the short-circuit valve, an upper measuring pipe of a confluence three-way pipe, a ground water supply inlet valve and a ground control system water inlet pipe and enters a water separator; the water separator divides hot water into each water supply pipe group in a parallel mode, heat is transferred to the ground airspace of a room through floor tiles, hot gas can naturally transfer heat to the hollow space of the room in a convection mode, and a comfortable environment airspace is created; the hot water of each water supply pipe group reduces the water temperature, and the low-water and warm water of each water supply pipe group is collected to the water collector, discharged to the water return valve through the water outlet pipe of the ground supply system and flows to the water tank;
when a heating working medium circulation loop is adopted in winter, the working medium R410A works in a main machine internal circulation system, and heat generated in a shell-and-tube condenser of the main machine is transferred to a heat conduction terminal device by a water medium of the shell-and-tube condenser through a water pump, a water outlet valve and a water inlet pipe; the compressor carries out isentropic compression on low-pressure low-temperature working medium gas sucked by a system in the evaporator to obtain high-pressure high-temperature gas; the high-pressure high-temperature working medium gas is guided by the exhaust pipe, flows to a space system between an outer sleeve and an inner pipe of the shell-and-tube condenser, releases heat to the water medium of the inner pipe and heats the water medium;
when heating in winter, the condensation process has 3 temperature sections, and when the working medium is cooled by a condenser from a compressor, the working medium is subjected to high-temperature overheat cooling, isothermal cooling at the condensation temperature, condensation into a liquid working medium, and supercooling cooling. The working medium and the water flow in the reverse direction, and the higher the water temperature is, the better the water temperature is naturally required in winter. The outlet of the medium water is just the inlet section of the working medium flowing to the condenser, and the medium water can obtain the high temperature of the working medium in the stage of overheating and cooling;
the circulation process of the water medium in the heat pump type water medium geothermal, ground cooling and semi-air cooling three-supply system is as follows: the on-hook valve is closed, normal-temperature water in the water tank is fed to a ground supply system through a pipe shell type condenser, hot water is directly fed to the ground supply system through a short-circuit valve under the action of a water pump to heat the ground of a room, and the hot water is cooled into the normal-temperature water, so that the purpose of creating a high-medium-low step small temperature difference thermal health temperature domain under a room semi-airspace is achieved; the normal temperature water flows back to the water tank through the water outlet pipe of the ground supply system after losing the heating function, the normal temperature water in the water tank is heated by the pipe shell type condenser and is recovered to hot water, and the water is directly sent to the ground supply system through the short-circuit valve under the action of the water pump to form water medium circulation; the heating circulation system continuously and circularly operates to maintain the heat supplied to the ground supply system.
1 ground supply system, 1 wall hanging machine, 1 ground supply control valve connecting pipe structure and 1 control system are installed in 1 room, and the system is suitable for a single room; the wall hanging machine is fixedly arranged in the middle of the wall body; during refrigeration in summer, normal-temperature water in the water tank is cooled by the shell-and-tube condenser to become cold water at the temperature of 5-7 ℃, the cold water is firstly sent to the wall hanging machine through the hook valve, and the cold water absorbs heat and is heated in the wall hanging machine to become cold water at the temperature of 12-15 ℃ which is sent to a ground supply system to become normal-temperature water;
in summer refrigeration, a reversing valve is opened, a main machine working medium internal circulation system reverses and changes to clockwise operation, and a compressor sucks low-pressure low-temperature working medium gas into a working medium circulation domain of a shell-and-tube condenser for isentropic compression to change the low-pressure low-temperature working medium gas into high-pressure high-temperature gas; the high-pressure high-temperature working medium gas is guided by the air suction pipe, flows to the internal space system of the evaporator, releases heat to the air of the external system of the evaporator, and hot air is discharged from the main engine to the outdoor space from the air outlet window; cooling the high-pressure high-temperature working medium into high-pressure normal-temperature liquid, and throttling the liquid into a low-pressure normal-temperature gas-liquid mixture through a capillary; the low-pressure normal-temperature gas-liquid mixed working medium enters the inner space of the sleeve of the shell-and-tube condenser to absorb the heat of the water medium in the inner tube and is evaporated into low-temperature low-pressure superheated gas, the water medium releases heat and cools the working medium to become a low-temperature water medium, and the low-temperature water medium is sent to a wall-mounted machine by a water pump to absorb heat to refrigerate in the indoor semi-empty space; after the low-temperature aqueous medium absorbs the heat of the indoor airspace, the temperature of the aqueous medium slightly rises, the temperature-rising aqueous medium is sent to a ground supply system to perform stepped refrigeration on the indoor ground airspace, and the ground airspace supplies a temperature slightly higher than the refrigeration temperature of the hollow space.
In 2 rooms, 1 ground supply system and 1 wall hanging machine are respectively installed in each room, 1 host computer is shared, 1 set of ground supply control valve connecting pipe structure and 1 set of control system are suitable for a suite.
The control system is a PLC controller, and the compressor, the water pump, the plastic package motor, the fresh air valve, the shunt tee joint, the short circuit valve, the confluence tee joint, the on-hook valve and the ground water supply and inlet valve are all electrically connected with the PLC controller.
The control mode refrigeration principle of the summer temperature difference type water medium geothermal, ground cooling and semi-air cooling three-supply system is as follows: the heat pump type water medium geothermal, ground cooling and semi-air cooling three-supply system adopts water medium as an energy transmission carrier of an air conditioning system, so that the temperature of a ground airspace is higher than that of a semi-airspace; the working medium in the shell-and-tube condenser evaporates and absorbs the heat of the aqueous medium, and reduces the temperature of the aqueous medium to 5-7 ℃; the water medium absorbs the heat of air passing through a wall-mounted machine heat exchanger at a half airspace of a room to become cold energy for reducing the temperature of the air in the half airspace, and the high temperature of the half airspace at 35 ℃ can be gradually reduced to a control temperature; after absorbing heat, the water medium in the wall hanging machine in the semi-airspace rises to 17-20 ℃, and enters an in-ground supply system for refrigeration, namely ground cooling; the water medium with the temperature of 17-20 ℃ flows to the ground water supply pipe group to absorb the heat of the floor tiles and the air in the ground airspace, and the cold energy is conducted and transmitted to the floor tiles and the ground airspace to reduce the air temperature of the floor tiles and the air in the ground airspace; the temperature of the cold source aqueous medium of the ground water supply pipe set is higher than that of the cold source aqueous medium of the wall hanging machine, so that the air temperature of the ground and the ground airspace is higher than that of the air in the semi-airspace, the air temperature in the ground airspace cannot reach the dew point temperature of the air in the semi-airspace, and the ground cannot be condensed;
the terrestrial heat is transmitted from the ground to the half airspace, the principle of forward transmission of hot gas is met, the temperature gradient of heat transmission from the ground to the half airspace is small, and the energy-saving effect is important; the heat transfer mode of the ground cooling is also the key point to meet the requirements of a semi-airspace and a ground airspace, and after the requirements of the ground and the semi-airspace are met, the quantity of waste cold spread to the area above the semi-airspace is very little, so the ground cooling type heat transfer is more energy-saving than the ground heating type heat transfer.
Under the action of a plastic package motor and a cross flow fan, indoor hot air and part of introduced fresh air enter the wall hanging machine from an air inlet window B, the air is purified by a filter and then enters the finned tube heat exchanger, heat exchange is carried out on the finned tube heat exchanger, hot air is changed into cold air, and the cold air is refrigerated from an air outlet window on a panel to the inside of the air chamber; the cold air is forcedly transmitted to the indoor ground, the temperature of a ground airspace is rapidly reduced, the cold air and a ground supply system naturally and slowly transfer heat to the refrigeration of the ground airspace, and the dew point temperature and the dry bulb temperature of the cold air are pulled away, so that the condensation of the ground is prevented.
Compared with the prior art, the invention has the beneficial effects that:
(1) Avoiding ground condensation: the ground refrigeration system adopts the cascade refrigeration of the ground supply system and the wall-mounted machine semi-airspace refrigeration system in series, the refrigeration temperature of the ground refrigeration is more than 5 ℃ higher than that of the wall-mounted machine, the refrigeration capacity of the ground refrigeration can be reduced by about 50% during temperature difference refrigeration, conditions are provided for improving the ground temperature, the ground temperature is higher than the semi-airspace temperature, and the problem of ground condensation is solved.
(2) The equipment investment cost is reduced: the invention adopts the combined refrigeration technology of the ground supply system and the wall-mounted machine semi-airspace refrigeration system, the ground supply system is the existing device of the geothermal heating system, the cold load of the wall-mounted machine is only half of the full cold quantity, the structure of a finned tube heat exchanger, a cross-flow fan system and the whole wall-mounted machine can be reduced, and the full-load design cost of the indoor machine is reduced by 50 percent.
(3) Energy conservation: the wall hanging machine semi-airspace refrigeration system is arranged in a semi-airspace of a wall body, and the wall hanging machine is positioned at the semi-high position of a room airspace; the main heat transfer direction of the cold air in the airspace is sinking, the hollow space is the cold receiving position of people, and the airspace above the half-space basically has no cold quantity rising, so that the energy is saved by more than 40 percent compared with the condition that a fan coil is adopted to spread downwards from the airspace at the top of a room.
(4) Can introduce fresh air: the wall hanging machine semi-airspace refrigeration provides conditions for introducing fresh air and purifying the fresh air and indoor circulating air; the fresh air valve and the air purifier are arranged on the indoor wall mounted unit, a placing structure is not additionally arranged, and the cost of the fresh air system and the cost of the air purifier are reduced.
Drawings
FIG. 1 is a diagram: a host internal structure main view;
FIG. 2 is a diagram of: a host component connection diagram;
FIG. 3 is a diagram of: a host shell body perspective view;
FIG. 4 is a diagram: the cross-sectional structure of the ground supply system is schematic;
FIG. 5 is a schematic diagram of: a stereo view of the internal structure of the wall hanging machine;
FIG. 6 is a diagram of: a wall hanging shell body perspective view;
FIG. 7 is a diagram of: a ground supply system, a wall-mounted unit and a ground supply control valve connecting pipe structure are connected in a schematic plan view;
FIG. 8 is a diagram of: FIG. 7 is an enlarged view of section A;
FIG. 9 is a schematic diagram of: the ground supply system, the wall-mounted unit and the ground supply control valve are connected with the front view of the connecting pipe structure;
FIG. 10 is a schematic diagram of: the heat pump type water medium geothermal, ground cooling and semi-air cooling three-supply system is assembled schematically.
Description of reference numerals: the system comprises a host 1, a host shell 101, a front panel 101A, a rear panel 101B, a left side panel 101C, a right side panel 101D, a top cover plate 101E, a compressor 102, an interface A102A, an interface B102B, a reversing valve 103, an interface C103C, an interface D103D, an interface E103E, an interface F103F, a shell-and-tube condenser 104, a capillary tube 105, an evaporator 106, a working medium tube 107, a water pump 108, a water tank 109, a water return valve 1010, a sewer pipe 1011, a reclaimed water tube 1012, a water supply pipe 1013, a water outlet valve 1014, a fan 1015, an air inlet window A1016, an air outlet window A1017, an earth supply system 2, a heat insulation partition 201, a cold and hot water tube 202, poured cement 203, a PVC floor paste 204, a brick floor 205, an earth supply pipe group A206, an earth supply pipe group B207, an earth supply pipe group C208, a wall hanging machine 3, a wall hanging machine shell 301, a volute 302, a plastic packaging motor 303, a cross flow fan 304, a fresh air valve 305, a heat exchanger 306, a filter 307, a panel 308, an air inlet window B309, a window 3010, an earth supply valve connection control valve, a three-way control water distribution valve 403, a three-way water distribution valve 401, a water inlet pipe, a water distribution pipe system water inlet pipe 4010, a water inlet pipe 404, a water distribution system and a heat exchanger 409, a heat exchanger 407, a water distribution system 4010.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1:
as shown in fig. 1 to 10, the heat pump type water medium geothermal, ground cooling and semi-air cooling three supply system comprises a main machine 1, a wall hanging machine 3, a ground supply control valve connecting pipe structure 4 and a control system (not shown in the figures), and a ground supply system 2; as shown in fig. 1 and fig. 2, the main unit 1 adopts a heat pump type water medium central air conditioning system, which is a dual supply system of cold and heat sources, and the main unit 1 includes an internal structure of the main unit 1 and a main unit housing 101; the internal structure of the main unit 1 comprises a compressor 102, a reversing valve 103, a shell-and-tube condenser 104, a capillary tube 105, an evaporator 106, a working medium pipe 107, a water pump 108, a water tank 109, a water return valve 1010, a water drainage pipe 1011, a reclaimed water pipe 1012, a water feeding pipe 1013, a water outlet valve 1014, a fan 1015, a refrigerating or heating working medium, a water medium and a control system (not shown in the figure); the compressor 102, the reversing valve 103, the shell-and-tube condenser 104, the capillary tube 105 and the evaporator 106 are connected with each other through a working medium tube 107 to form a refrigerating working medium circulation loop or a heating working medium circulation loop; the operation of the main machine 1 comprises a refrigeration mode or a heating mode, wherein in the heating mode, a heating working medium flows along the direction of the compressor 102 in a counterclockwise direction, namely along the compressor 102, the reversing valve 103, the shell-and-tube condenser 104, the capillary tube 105 and the evaporator 106 and returns to the direction of the compressor 102; in the refrigeration mode, the refrigeration working medium flows clockwise on the contrary; the shell-and-tube condenser 104 comprises a coil pipe and a condensing working medium pipe 107 arranged in the coil pipe in a penetrating way; the water pump 108 is arranged below the shell-and-tube condenser 104, the water tank 109 is arranged on one side of the water pump 108, the water return valve 1010 is arranged on one side of the water tank 109, the other side of the water tank 109 is connected with an inlet of the water pump 108 through a sewer pipe 1011, an outlet of the water pump 108 is connected with the lower end of the coil pipe through a middle water pipe 1012, and the upper end of the coil pipe is connected with a water outlet valve 1014 through an upper water pipe 1013;
as shown in fig. 4 and 7, the ground supply system 2 includes a heat insulation partition 201, a cold and hot water pipe 202, a poured cement 203, a PVC floor sticker 204 and floor tiles 205, wherein the heat insulation partition 201, the poured cement 203, the PVC floor sticker 204 and the floor tiles 205 are sequentially laid on the floor of a room from bottom to top; the heat-insulating partition board 201 can prevent heat transfer to downstairs, and energy loss is avoided; the cold and hot water pipes 202 are arranged in groups and evenly embedded in the poured cement 203, and the cold and hot water pipes 202 and the poured cement 203 form a fixed water supply pipe group; the water supply amount of each pipe group is distributed by a water separator 408, and the return water of each pipe group flows back to the water tank 109 after being collected by a water collector 409; the diameter phi of the cold and hot water pipe 202 is 20mm, and the laying distance m of the cold and hot water pipe 202 is 110mm; the thickness q of the heat-insulation partition board 201 is 48mm, the thickness r of the poured cement 203 is 20mm, the thickness s of the PVC floor sticker 204 is 5mm, and the thickness t of the floor tile 205 is 20mm; the cold and hot water pipe 202 is internally flowed with cold and hot water with 20-60 ℃ of water medium, and the temperature difference exceeds that of a single geothermal water pipe;
as shown in fig. 5 to 9, the wall-mounted unit 3 includes an internal structure of the wall-mounted unit 3 and a wall-mounted unit housing 301, and the internal structure of the wall-mounted unit 3 is disposed in the wall-mounted unit housing 301; the host 1 provides a high-temperature water flow heat source or a low-temperature water flow cold source for the ground supply system 2 through the ground supply control valve connecting pipe structure 4, provides a low-temperature water flow cold source for the wall hanging machine, and can heat a room in winter and refrigerate the room in summer; the wall-mounted machine and ground supply system 2 is a tail end device of a cold and heat source double supply system; the width L of the wall hanging machine 3 is 400mm, the height H of the wall hanging machine 3 is 400mm, and the thickness K of the wall hanging machine 3 is 150mm; a host, 1 wall hanging machine, 1 ground supply control valve connecting pipe structure, 1 ground supply system and 1 control system are installed in 1 room, and the system is suitable for a single room;
as shown in fig. 5, the internal structure of the wall-mounted unit 3 includes a scroll 302, a plastic-sealed motor 303, a cross-flow fan 304, a fresh air valve 305, a finned tube heat exchanger 306, and a filter 307; the scroll 302 is arranged at the lower part of the wall-mounted machine shell 301, the plastic package motor 303 and the cross flow fan 304 are arranged in the scroll 302, and the plastic package motor 303 and the cross flow fan 304 are rotationally connected; the fresh air valve 305, the finned tube heat exchanger 306 and the filter 307 are arranged in sequence from front to back and are arranged above the volute 302; the water inlet pipe 401 and the water outlet pipe of the finned tube heat exchanger 306 are respectively arranged at two sides of the bottom of the finned tube heat exchanger 306; under the action of the plastic packaging motor 303 and the cross flow fan 304, indoor hot air enters the finned tube heat exchanger 306 through the filter 307 to become cold air, and is discharged by the cross flow fan 304; the fresh air valve 305 functions as: the fresh air quantity can be adjusted to supply variable low-temperature fresh air quantity to the indoor space, and the fresh air quantity can be supplied to normal temperature when the air conditioner is not used for cooling and heating, and the fresh air valve 305 can be closed when the fresh air is not used.
As shown in fig. 7 and 8, the ground supply control valve connecting pipe structure 4 comprises a water inlet pipe 401, a flow dividing tee 402, a short-circuit valve 403, a confluence tee 404, a hook connecting valve 405, a ground supply water inlet valve 406, a ground supply system water inlet pipe 407, a water separator 408, a water collector 409 and a ground supply system water outlet pipe 4010; the inlet of the water inlet pipe 401 is connected with a water outlet valve 1014 of the main machine 1; the outlet of the water inlet pipe 407 of the ground supply system is connected with the water separator 408, and the ground supply system 2 comprises a plurality of ground water supply pipe groups connected in parallel; one end of a plurality of ground water supply pipe groups is connected with the water separator 408, the other end of the plurality of ground water supply pipe groups is connected with the water collector 409, the water collector 409 is connected with an outlet of a ground water supply system outlet pipe 4010, and an outlet of the ground water supply system outlet pipe 4010 is connected with a water return valve 1010 of the host 1; when the short circuit valve 403 is on, hot water from the shell and tube condenser 104 is fed straight to the system 2; the outlet end of the water inlet pipe 401 is connected with the inlet of the flow dividing tee 402; a left pipe of the shunt tee joint 402 is connected with an upper measuring pipe of the confluence tee joint 404 through a short-circuit valve 403, an outlet at the other side of the shunt tee joint 402 is connected with a water inlet pipe 401 of the wall-mounted unit 3 through a hung valve 405, a water outlet pipe of the wall-mounted unit 3 is connected with an inlet at the other side of the confluence tee joint 404, and an outlet of the confluence tee joint 404 is connected with an inlet of a water inlet pipe 407 of a ground supply system through a ground supply and inlet valve 406;
as shown in fig. 7, 8 and 9, the operation modes of the heat pump type water medium geothermal, ground cooling and semi-air cooling three-supply system include a summer temperature difference type water medium geothermal, ground cooling and semi-air cooling three-supply system control mode, wherein the summer temperature difference type water medium geothermal, ground cooling and semi-air cooling three-supply system control mode is carried out by using the host machine 1, the wall hanging machine 3, the ground supply control valve connecting pipe structure 4, the ground supply system 2 and the control system; in summer, the main air conditioner system starts a refrigeration mode, the compressor 102 and the water pump 108 are started through the control system, a working medium for refrigeration flows in a clockwise direction to start running in a circulating loop, and hot gas generated by the evaporator 106 is discharged to the outside; the cold energy generated by the shell-and-tube condenser 104 is transmitted to the water medium, the water outlet valve 1014 and the water return valve 1010 are opened, the on-hook valve 405 is opened, the ground water supply inlet valve 406 is opened, and the short circuit valve 403 is closed; under the action of the water pump 108, normal-temperature water in the water tank 109 flows through the shell-and-tube condenser 104, the normal-temperature water is reduced to low-temperature cold water of 5-7 ℃, the cold water is discharged to the water inlet pipe 401 from the water outlet valve 1014, is discharged to the on-hook valve 405 from the right side pipe of the shunt three-way pipe 402, passes through the on-hook valve 405, the cold water sequentially flows to the wall hanging machine 3 in the mid-air space from top to bottom, exchanges heat and cold in the finned tube heat exchanger 306 in the wall hanging machine 3, is cooled to a comfortable temperature through indoor circulating air of the heat exchanger, is discharged to an indoor lower semi-air space under the action of the cross flow fan 1015, and simultaneously cools air in a ground air space; the low-temperature cold water in the wall-mounted unit 3 absorbs heat and rises into medium-temperature cold water, the medium-temperature cold water is discharged to a ground supply water inlet valve 406 of the ground supply system 2 and enters a water separator 408 through a ground control system water inlet pipe 401; the water separator 408 divides the cold water to each water supply pipe group in parallel, naturally transfers cold to the ground airspace, and the air in the ground airspace is cooled to a comfortable temperature in a dry manner and is merged with the indoor circulating cold air passing through the heat exchanger to create a comfortable environment airspace; the hot water of each water supply pipe group absorbs the cold energy of the floor tiles 205 and the air in the ground airspace and then is heated to be normal-temperature water, and the normal-temperature water does not generate condensation on the floor tiles 205; normal temperature water of each water supply pipe group is collected to a water collector 409, flows back to the water tank 109 through a water outlet pipe 4010 of the ground supply system and a water return valve 1010;
in summer, the condenser is changed into an evaporator 106, the direction of the working medium is changed by the reversing valve 103, but the medium water still runs in the original direction, and the medium water and the working medium flow in the same direction; the evaporation process of the working medium in the evaporator 106 is isothermal evaporation, and the reverse direction and the same direction are not greatly different, but in the actual operation of the evaporator 106, the flow resistance exists, the evaporation temperature is reduced, the evaporation temperature at the outlet of the evaporator 106 is the lowest, the medium water and the working medium flow in the same direction, and the water medium can obtain the lowest temperature; during refrigeration, the lower temperature is used as the heat transfer effect with the maximum heat transfer;
as shown in fig. 2 and fig. 10, the circulation process of the water medium in the heat pump type water medium geothermal, ground cooling and semi-air cooling three-supply system comprises the following steps: in summer refrigeration, the short-circuit valve 403 is closed, normal-temperature water in the water tank 109 is cooled by the shell-and-tube condenser 104 to become cold water at the temperature of 5-7 ℃, the cold water is sent to the wall hanging machine 3 through the hook valve 405 under the action of the water pump 108, the cold water is conveyed to the ground in the forward direction in the room semi-airspace, the cold water is changed into cold water after the wall hanging machine absorbs heat and is heated, the cold water is sent to the ground for the system 2, the cold water is conveyed to the floor tiles 205 and the ground airspace to become normal-temperature water, and the purpose of creating a high-middle-low-level ladder health small temperature difference airspace under the room semi-airspace is achieved; because the room semi-airspace is also in a small gradient of cooling from top to bottom, the temperature of the ground airspace is slightly higher than that of the semi-airspace, the ground airspace cannot reach the dew point temperature, and the ground cannot condense water; the temperature gradient is more suitable for the health temperature of the human body from slightly cooling feet to cool head; the normal temperature water flows back to the water tank 109 through the water outlet pipe 4010 of the ground supply system after losing the refrigeration function, the normal temperature water in the water tank 109 is cooled by the pipe shell type condenser 104 and is recovered to the cold water with the temperature of 5-7 ℃, and the cold water is sent to the wall-mounted unit 3 through the on-board unit valve 405 to carry out new circulation under the action of the water pump 108.
As shown in fig. 2, the compressor 102 includes a port a 102A and a port B102B, and the reversing valve 103 includes a port C103C, a port D103D, a port E103E, and a port F103F; the interface A102A, the interface C103C, the interface E103E, the shell-and-tube condenser 104, the capillary 105, the evaporator 106, the interface F103F, the interface D103D and the interface B102B are sequentially connected with one another through the working medium tube 107 to form a heating working medium circulation loop flowing in the anticlockwise direction, and the interface A102A, the interface C103C, the interface F103F, the evaporator 106, the capillary 105, the shell-and-tube condenser 104, the interface E103E, the interface D103D and the interface B102B are sequentially connected with one another through the working medium tube 107 to form a cooling working medium circulation loop flowing in the clockwise direction; the refrigerating and heating working medium in the working medium circulation loop for refrigerating or heating is the working medium R410A.
As shown in fig. 3, the main housing 101 includes a front panel 101A, a rear panel 101B, a left side panel 101C, a right side panel 101D, a top panel 101E, an air inlet window a 1016 disposed on the top panel 101E, an air outlet window a 1017 disposed on the front panel 101A, and a water return valve 1010 and a water outlet valve 1014 disposed at the bottom of the left side panel 101C.
As shown in fig. 4, 7 and 9, the ground supply system 2 includes a ground water supply pipe group a 206, a ground water supply pipe group B207 and a ground water supply pipe group C208; the floor tile 205 is a composite floor, and the heat-insulating partition board 201 is a high-density hard polystyrene foam board with the heat conductivity coefficient equal to 0.05w/m.k or an extruded board; the cold and hot water pipe 202 is a PE-RE steel-plastic composite pipe for cold and hot use or an aluminum-plastic composite pipe; the water pipes of the water pipe groups are fixedly installed by staples, buckles and the like, and cement is poured between the water pipes of the water pipe groups and in the space between the water pipes of the water pipe groups and the peripheral wall feet for fixation; the water pipe group can bear the expansion and contraction deformation of cold water and hot water at the temperature of 20-60 ℃, and the outer surface of the water pipe is in contact with cement, sealed and fixed under the condition of sealed cement pouring and fixing;
as shown in figure 4, the expansion coefficient of the steel-plastic composite water pipe is 180 multiplied by 10 < -6 > m/m DEG C, when the temperature difference is 60 ℃ in the diameter direction, the expansion is 0.2mm, the expansion is very small, too large gaps can not be formed between the outer surface of the water pipe and the cement sealing surface, air thermal resistance and water accumulation cavities for the heat transfer of water medium to cement can not be formed, and the purpose of dry heat transfer is achieved.
As shown in fig. 5 and 6, the wall-hanging machine shell 301 comprises a shell body, a panel 308 arranged at the front lower part of the shell body, an air inlet window B309 arranged at the front upper part of the shell body, and an air outlet window B3010 arranged at the middle part of the panel 308; the filter 307 includes a general cleaning filter 307, an electrostatic air cleaner, or an anion air cleaner.
As shown in fig. 5 and 6, the operation modes of the heat pump type water medium geothermal, ground cooling and semi-air cooling three-supply system further include a fresh air and air purifier air supply system control mode, and the fresh air and air purifier air supply system control mode is according to the wall hangingThe structure and the control system of the machine 3 are carried out; when the common purification filter 307 is adopted, the fresh air valve 305, the plastic package fan 1015 and the crossflow fan 1015 of the wall-mounted unit 3 are opened, so that fresh air can be supplied to the indoor space, and indoor circulating air can be treated; because the system has a semi-airspace refrigeration technology, conditions are provided for supplying fresh air and purifying air for a geothermal system and a central air conditioner, the system can adjust the fresh air volume, the fresh air volume can be adjusted according to the indoor personnel and the oxygen supply load, and the fresh air load of the personnel is 1 person and 30m3H; the filter 307 is a common air purifier, an electrostatic air purifier or an anion air purifier, and for the electrostatic air purifier or the anion air purifier, the power supply of the purifier is turned on, and meanwhile, the cross flow fan 1015 is turned on to purify indoor circulating air; the air purifier can provide fresh air and air purification of the whole room in all weather, and can provide fresh air and air purification of the whole room no matter heating, refrigerating or non-heating and non-refrigerating.
As shown in fig. 7, 8 and 9, the operation modes of the heat pump type water medium geothermal, ground cooling and semi-air cooling three-supply system further include a winter geothermal type direct air heating system control mode, wherein the winter geothermal type direct air heating system control mode is carried out by using the host machine 1, the ground supply control valve connecting pipe structure 4, the ground supply system 2 and the control system; the main machine air conditioner system in winter is started in a heating mode, the compressor 102 and the water pump 108 are started through the control system, a heating medium circulation loop starts to operate, and cold air generated by the evaporator 106 is discharged to the outside; the heat generated by the shell-and-tube condenser 104 is transmitted to the water medium, the water outlet valve 1014 and the water return valve 1010 are opened, the on-hook valve 405 is closed, the ground water inlet valve 406 is opened, and the short-circuit valve 403 is opened; under the action of the water pump 108, low-temperature water in the water tank 109 flows through the shell-and-tube condenser 104 and heats the low-temperature water to 60 ℃ hot water, the hot water is discharged to the water inlet pipe 401 from the water outlet valve 1014 and is discharged to the short-circuit valve 403 from the left pipe of the shunt tee 402, and passes through the short-circuit valve 403, the upper measuring pipe of the confluence tee 404, the ground water inlet valve 406 and the ground control system water inlet pipe 401 to enter the water separator 408; the water distributor 408 distributes the hot water to each water supply pipe group in parallel, the heat is transferred to the room ground airspace through the floor tiles 205, the hot gas can naturally transfer the heat to the room ground airspace in a convection way, and a comfortable environment airspace is created; the hot water of each water supply pipe group reduces the water temperature, and the low-water and warm water of each water supply pipe group is collected to the water collector 409, discharged to the water return valve 1010 through the water outlet pipe 4010 of the ground supply system and flows to the water tank 109;
as shown in fig. 2 and fig. 9, when a working medium circulation loop for heating is adopted in winter, a working medium R410A works in a main engine internal circulation system, and heat generated in a shell-and-tube condenser 104 of a main engine 1 is transferred to a heat conduction end device by a water medium of the shell-and-tube condenser 104 through a water pump 108, a water outlet valve 1014 and a water inlet pipe 401; the compressor 102 performs isentropic compression on low-pressure low-temperature working medium gas sucked by a system in the evaporator 106 to change the low-pressure low-temperature working medium gas into high-pressure high-temperature gas; the high-pressure high-temperature working medium gas is guided by the exhaust pipe, flows to a space system between an outer sleeve and an inner pipe of the shell-and-tube condenser 104, releases heat to the water medium of the inner pipe and heats the water medium;
during heating in winter, the condensation process has 3 temperature sections, and when the working medium flows out of the compressor 102 and is cooled by the condenser, the working medium is subjected to high-temperature overheating cooling, isothermal cooling at the condensation temperature, condensation to form a liquid working medium, and supercooling cooling. The working medium and water flow in the opposite direction, and the higher the water temperature is, the better the water temperature is. The outlet of the medium water is just the inlet section of the working medium flowing to the condenser, and the medium water can obtain the high temperature of the working medium in the overheating and cooling stage;
as shown in fig. 2 and fig. 9, the circulation process of the water medium in the heat pump type water medium geothermal, ground cooling and semi-air cooling three-supply system comprises the following steps: the on-hook valve 405 is closed, normal-temperature water in the water tank 109 is fed to the ground supply system 2 through the pipe shell type condenser 104, the hot water is directly fed to the ground supply system through the short-circuit valve 403 under the action of the water pump 108, the ground of a room is heated, and the hot water is cooled into the normal-temperature water, so that the purpose of creating a high-middle-low step small temperature difference heat health temperature area under a half airspace of the room is achieved; after losing the heating function, the normal temperature water flows back to the water tank 109 through the ground supply system water outlet pipe 4010, the normal temperature water in the water tank 109 is heated by the pipe shell type condenser 104 and is recovered into hot water, and the hot water is directly sent to the ground supply system 2 through the short-circuit valve 403 under the action of the water pump 108, so that the water medium circulation is formed; the heating cycle system continuously and circularly operates to maintain the heat supply to the ground supply system 2.
As shown in fig. 8 and 9, the wall hanging machine 3 is fixedly arranged at the middle position of the wall; during refrigeration in summer, normal-temperature water in the water tank 109 is cooled by the shell-and-tube condenser 104 to become cold water at the temperature of 5-7 ℃, the cold water is firstly sent to the wall hanging machine 3 through the on-hook valve 405, and the cold water is changed into cold water at the temperature of 12-15 ℃ after the heat absorption and the temperature rise of the wall hanging machine and is sent to the ground supply system 2 to become normal-temperature water;
in summer, when refrigerating, the reversing valve 103 is opened, the working medium internal circulation system of the main machine 1 is reversed and changed into clockwise running, and the compressor 102 sucks low-pressure low-temperature working medium gas into the working medium circulation domain of the shell-and-tube condenser 104 for isentropic compression to change the low-pressure low-temperature working medium gas into high-pressure high-temperature gas; the high-pressure high-temperature working medium gas is guided by the air suction pipe, flows to the internal space system of the evaporator 106, releases heat to the air of the external system of the evaporator 106, and hot air is discharged from the host 1 to the outdoor space from the air outlet window B3010; cooling the high-pressure high-temperature working medium into high-pressure normal-temperature liquid, and throttling the liquid into a low-pressure normal-temperature gas-liquid mixture through a capillary 105; the low-pressure normal-temperature gas-liquid mixed working medium enters a sleeve pipe inner space of the shell-and-tube condenser 104 to absorb heat of an inner pipe aqueous medium and is evaporated into low-temperature low-pressure superheated gas, the aqueous medium releases heat to the working medium to be cooled to become a low-temperature aqueous medium, and the low-temperature aqueous medium is sent to the wall hanging machine 3 by the water pump 108 to absorb heat to refrigerate in an indoor semi-air space; after the low-temperature aqueous medium absorbs the heat of the indoor airspace, the temperature of the aqueous medium slightly rises, the temperature-rising aqueous medium is sent to the ground supply system 2 to carry out stepped refrigeration on the indoor ground airspace, and the ground airspace supplies a temperature slightly higher than the refrigeration temperature of the hollow airspace.
The control system is a PLC controller, and the compressor 102, the water pump 108, the plastic package motor 303, the fresh air valve 305, the shunt tee 402, the short circuit valve 403, the confluence tee 404, the on-hook valve 405 and the ground water supply and inlet valve 406 are all electrically connected with the PLC controller.
The control mode refrigeration principle of the summer temperature difference type water medium geothermal, ground cooling and semi-air cooling three-supply system is as follows: the heat pump type water medium multi-stage refrigeration air-conditioning system adopts the water medium as an energy transmission carrier of the air-conditioning system, so that the temperature of a ground airspace is higher than the temperature of a half airspace; the working medium in the shell-and-tube condenser 104 evaporates and absorbs the heat of the aqueous medium, and reduces the temperature of the aqueous medium to 5-7 ℃; the water medium absorbs the air heat of the heat exchanger of the wall hanging machine 3 at the half airspace of the room to become the cold energy for reducing the air temperature of the upper half airspace, and the high temperature of the half airspace at 35 ℃ can be gradually reduced to the control temperature; after absorbing heat, the water medium in the semi-airspace rises to 17-20 ℃ and enters the ground supply system 2 for refrigeration, namely ground cooling; the water medium with the temperature of 17-20 ℃ flows to the ground water supply pipe group to absorb the heat of the floor tiles and the air in the ground airspace, and the cold energy is conducted and transmitted to the floor tiles and the ground airspace to reduce the air temperature of the floor tiles and the air in the ground airspace; because the temperature of the water medium of the cold source of the ground water supply pipe set is higher than that of the water medium of the cold source of the wall hanging machine 3, the air temperature of the ground airspace is higher than that of the air of the half airspace, the air temperature of the ground airspace cannot reach the dew point temperature of the air of the half airspace, and the ground cannot be condensed;
the terrestrial heat is transmitted from the ground to the half airspace, the principle of forward transmission of hot gas is met, the temperature gradient of heat transmission from the ground to the half airspace is small, and the energy-saving effect is important; the heat transfer mode of the ground cooling is also the key point to meet the requirements of a semi-airspace and a ground airspace, and after the requirements of the ground and the semi-airspace are met, the quantity of waste cold spread to the area above the semi-airspace is very little, so the ground cooling type heat transfer is more energy-saving than the ground heating type heat transfer.
Under the action of the plastic packaging motor 303 and the cross flow fan 304, indoor hot air and part of introduced fresh air enter the wall hanging machine 3 from the air inlet window B309, enter the finned tube heat exchanger 306 after being purified by the filter 307, exchange heat in the finned tube heat exchanger 306, change hot air into cold air, and refrigerate to the inside of the air chamber from the air outlet window B3010 on the panel 308; the cold air is forcedly transmitted to the indoor ground, the temperature of the ground airspace is rapidly reduced, the cold air and the ground supply system 2 naturally and slowly transfer heat to the refrigeration of the ground airspace, and the dew point temperature and the dry bulb temperature of the cold air are pulled away, so that the condensation of the ground is prevented.
Example 2:
referring to fig. 7,2 rooms are respectively provided with 1 ground supply system and 1 wall hanging machine in each room, share 1 host, 1 set of ground supply control valve connecting pipe structure and 1 set of control system, and are suitable for suitcases.
The same as in example 1.
The 2 examples described above are only preferred embodiments of the present invention, and general changes and substitutions by those skilled in the art within the technical scope of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The heat pump type water medium geothermal, ground cooling and semi-air cooling three-supply system comprises a host machine, a ground supply system and a control system; the main machine adopts a heat pump type water medium central air conditioning system and is a cold and heat source dual-supply system, and the main machine comprises a main machine internal structure and a main machine shell; the internal structure of the main machine comprises a compressor, a reversing valve, a shell-and-tube condenser, a capillary tube, an evaporator, a working medium tube, a water pump, a water tank, a water return valve, a sewer pipe, a reclaimed water pipe, a water supply pipe, a water outlet valve, a fan, a refrigerating or heating working medium and a water medium; the compressor, the reversing valve, the shell-and-tube condenser, the capillary tube and the evaporator are mutually connected through a working medium tube to form a refrigerating working medium circulation loop or a heating working medium circulation loop; the operation of the main machine comprises a refrigerating mode or a heating mode, wherein in the heating mode, a heating working medium flows along the direction of the compressor, the reversing valve, the shell-and-tube condenser, the capillary tube and the evaporator in the anticlockwise direction and returns to the direction of the compressor; in the refrigeration mode, the refrigeration working medium flows clockwise on the contrary; the shell-and-tube condenser comprises a coil and a condensing medium tube penetrating in the coil; the water pump is arranged below the shell-and-tube condenser, the water tank is arranged on one side of the water pump, the water return valve is arranged on one side of the water tank, the other side of the water tank is connected with an inlet of the water pump through a sewer pipe, an outlet of the water pump is connected with the lower end of the coil pipe through a middle water pipe, and the upper end of the coil pipe is connected with the water outlet valve through an upper water pipe;
the ground supply system comprises a heat insulation partition plate, cold and hot water pipes, a ground supply system water inlet pipe, a ground supply system water outlet pipe, pouring cement, a PVC floor paste and floor tiles, wherein the heat insulation partition plate, the pouring cement, the PVC floor paste and the floor tiles are sequentially laid on the floor of a room from bottom to top; the cold and hot water pipes are arranged in groups and are uniformly embedded in the poured cement, and the cold and hot water pipes and the poured cement form a fixed water supply pipe group; the water supply amount of each pipe group is distributed by adopting a water separator, and the return water of each pipe group flows back to the water tank after being collected by the water collector; the diameter of the cold and hot water pipe is 16-24mm, and the laying distance of the cold and hot water pipe is 100-140mm; the thickness of the heat-insulation partition is 30-60mm, the thickness of the poured cement is 18-22mm, the thickness of the PVC floor paste is 4-6mm, and the thickness of the floor tile is 18-22mm; the hot and cold water pipe is internally flowed with cold water and hot water with 20-60 ℃ water medium, the temperature difference exceeds the single geothermal water pipe, and the utility model is characterized in that:
the heat pump type water medium geothermal, ground cooling and semi-air cooling three-supply system also comprises a wall hanging machine and a ground supply control valve connecting pipe structure, wherein the wall hanging machine comprises a wall hanging machine internal structure and a wall hanging machine shell, and the wall hanging machine internal structure is arranged in the wall hanging machine shell; the host machine provides a high-temperature water flow heat source or a low-temperature water flow cold source for the ground supply system through the ground supply control valve connecting pipe structure, provides a low-temperature water flow cold source for the wall hanging machine, and can heat a room in winter and refrigerate the room in summer; the wall-mounted unit and the ground supply system are end devices of a cold and heat source double supply system; the width of the wall hanging machine is 300-500mm, the height of the wall hanging machine is 300-500mm, and the thickness of the wall hanging machine is 100-200mm;1 wall-mounted unit and 1 ground supply system are respectively arranged in each room, 1 host is shared, and 1 set of ground supply control valve connecting pipe structure and 1 set of control system are arranged in 1 or more than 1 room;
the inner structure of the wall hanging machine comprises a volute, a plastic package motor, a cross flow fan, a fresh air valve, a finned tube heat exchanger and a filter; the volute is arranged at the lower part of the wall-mounted machine shell, the plastic package motor and the transverse flow fan are arranged in the volute, and the plastic package motor is rotationally connected with the transverse flow fan; the fresh air valve, the finned tube heat exchanger and the filter are sequentially arranged from front to back and are arranged above the volute; the water inlet pipe and the water outlet pipe of the finned tube heat exchanger are respectively arranged at two sides of the bottom of the finned tube heat exchanger; under the action of the plastic package motor and the cross flow fan, indoor hot air enters the finned tube heat exchanger through the filter to become cold air, and is discharged by the cross flow fan.
The ground supply control valve connecting pipe structure comprises a water inlet pipe, a flow dividing tee joint, a short circuit valve, a confluence tee joint, a connection and hanging machine valve, a ground supply water inlet valve, a water separator and a water collector; the inlet of the water inlet pipe is connected with a water outlet valve of the host; the outlet of the water inlet pipe of the ground supply system is connected with the water separator, and the ground supply system comprises a plurality of ground water supply pipe groups connected in parallel; one end of each of the plurality of ground water supply pipe groups is connected with the water separator, the other end of each of the plurality of ground water supply pipe groups is connected with the water collector, the water collector is connected with an outlet of a water outlet pipe of the ground water supply system, and an outlet of the water outlet pipe of the ground water supply system is connected with a water return valve of the host; when the short-circuit valve is switched on, hot water from a shell-and-tube condenser is directly supplied to the system; the outlet end of the water inlet pipe is connected with the inlet of the flow-dividing tee joint; the left side pipe of the shunt tee joint is connected with the upper measuring pipe of the confluence tee joint through a short-circuit valve, the outlet at the other side of the shunt tee joint is connected with the water inlet pipe of the wall-mounted machine through a hanging machine valve, the water outlet pipe of the wall-mounted machine is connected with the inlet at the other side of the confluence tee joint, and the outlet of the confluence tee joint is connected with the inlet of the water inlet pipe of the ground supply system through a ground supply water inlet valve;
the invention adopts a two-stage three-supply system, and the first stage is an integral air source heat pump air conditioning system for refrigerating and heating; the second level is that the tail end of the water medium carrier supplies single heat for the system and the wall hanging machine and ground supply system supply double cold; the summer temperature difference type water medium secondary and tertiary supply system control mode is carried out by a host, a wall-mounted machine, a ground supply control valve connecting pipe structure, a ground supply system and a control system; in summer, the main air conditioner system starts a refrigeration mode, a compressor and a water pump are started through a control system, a working medium for refrigeration flows in a clockwise direction to start running in a circulating loop, and hot air generated by an evaporator is discharged to the outside; the cold energy generated by the shell-and-tube condenser is transmitted to the water medium, the water outlet valve and the water return valve are opened, the on-hook valve is opened, the ground water supply inlet valve is opened, and the short circuit valve is closed; under the action of a water pump, normal-temperature water in a water tank flows through a pipe shell type condenser, the normal-temperature water is reduced to low-temperature cold water of 5-7 ℃, the cold water is discharged to a water inlet pipe from a water outlet valve, is discharged to a hook-connecting valve from a right side pipe of a shunt three-way pipe, passes through the hook-connecting valve, and is sequentially led to a wall hanging machine positioned in the air from top to bottom, a finned tube heat exchanger in the hook-connecting machine is used for exchanging cold and heat, the indoor circulating air of the heat exchanger is cooled to a comfortable temperature, and is discharged to an indoor lower half airspace under the action of a cross flow fan, and meanwhile, the air in the ground airspace is cooled; the low-temperature cold water in the wall-mounted unit absorbs heat and is raised into medium-temperature cold water, the medium-temperature cold water in the lowest wall-mounted unit is discharged to a ground supply water inlet valve of a ground supply system, and enters a water separator through a water inlet pipe of a ground control system; the water separator divides the cold water into each water supply pipe group in a parallel connection mode, the cold water is naturally transmitted to a ground airspace, the air in the ground airspace is cooled to a comfortable temperature in a dry mode, and the air is converged with indoor circulating cold air passing through the heat exchanger to create a comfortable environment airspace; cold water of each water supply pipe group absorbs cold energy of floor tiles and air in a ground airspace and then is heated to be normal-temperature water, and the normal-temperature water does not generate condensation on the floor tiles; normal temperature water of each water supply pipe group is collected to the water collector and flows back to the water tank through a water outlet pipe and a water return valve of the ground supply system;
in summer, the condenser is changed into an evaporator, the direction of the working medium is changed by the reversing valve, but the medium water still runs in the original direction, and the medium water and the working medium flow in the same direction;
the circulation process of the water medium in the heat pump type water medium geothermal, ground cooling and semi-air cooling three-supply system comprises the following steps: in summer refrigeration, the short circuit valve is closed, normal-temperature water in the water tank is cooled by the shell-and-tube condenser to become cold water at the temperature of 5-7 ℃, the cold water is firstly sent to the wall hanging machine through the wall hanging machine valve under the action of a water pump, the cold water is conveyed to the ground in a forward direction in a room semi-airspace, the cold water absorbs heat and is heated in the wall hanging machine to become cold water, the cold water is sent to a ground supply system, the cold water is conveyed to floor tiles and a ground airspace to become normal-temperature water, and the purpose of creating a high-middle-low-step healthy small temperature difference airspace in the room semi-airspace is achieved; because the half airspace of the room is also in a small gradient of cooling from top to bottom, the temperature of the ground airspace is slightly higher than that of the half airspace, the ground airspace cannot reach the dew point temperature, and the ground cannot condense water; the temperature gradient is more suitable for the healthy temperature of the human body from slightly cool feet to cool head; the normal temperature water flows back to the water tank through the water outlet pipe of the ground supply system after losing the refrigeration function, the normal temperature water in the water tank is cooled by the pipe shell type condenser and is recovered to 5-7 ℃ cold water, and the cold water is sent to the wall-mounted unit through the wall-mounted unit valve under the action of the water pump to carry out new circulation.
2. A heat pump type aqueous medium geothermal, ground cooling and semi-air cooling three-supply system according to claim 1, wherein: the compressor comprises a port A and a port B, and the reversing valve comprises a port C, a port D, a port E and a port F; the interface A, the interface C, the interface E, the shell-and-tube condenser, the capillary tube, the evaporator, the interface F, the interface D and the interface B are sequentially connected with each other through working medium tubes to form a heating working medium circulation loop flowing in the anticlockwise direction, and the interface A, the interface C, the interface F, the evaporator, the capillary tube, the shell-and-tube condenser, the interface E, the interface D and the interface B are sequentially connected with each other through the working medium tubes to form a refrigerating working medium circulation loop flowing in the clockwise direction; the refrigerating and heating working medium in the working medium circulation loop for refrigerating or heating is the working medium R410A.
3. A heat pump type aqueous medium geothermal, geothermal and semi-air cooling three supply system according to claim 1, wherein: the main machine shell comprises a front panel, a rear panel, a left side plate, a right side plate and a top cover plate, an air inlet window A arranged on the top cover plate, an air outlet window A arranged on the front panel, and a water return valve and a water outlet valve arranged at the bottom of the left side plate.
4. A heat pump type aqueous medium geothermal, ground cooling and semi-air cooling three-supply system according to claim 1, wherein: the ground supply system comprises a ground water supply pipe group A, a ground water supply pipe group B and a ground water supply pipe group C; the heat-insulating partition board is a high-density hard polystyrene foam board with the heat conductivity coefficient equal to 0.05w/m.k or an extruded board; the cold and hot water pipes are PE-RE steel-plastic composite pipes for cold and hot use or aluminum-plastic composite pipes, the diameter of the cold and hot water pipes is 20mm, and the laying distance of the cold and hot water pipes is 110mm; the thickness of the heat-insulation partition board is 48mm, the thickness of the poured cement is 20mm, and the thickness of the PVC floor paste is 5mm; the floor tiles are marble, floor tiles or composite floors, and the thickness of each floor tile is 20mm; the water pipes of the water pipe groups are fixedly installed by staples, buckles and the like, and cement is poured between the water pipes of the water pipe groups and in the space between the water pipes of the water pipe groups and the peripheral wall feet for fixation; the water pipe group can bear the expansion and contraction deformation of cold water and hot water at the temperature of 20-60 ℃, and the outer surface of the water pipe is in contact with cement, sealed and fixed under the condition of sealed cement pouring and fixing;
the expansion coefficient of the steel-plastic composite water pipe is 180 multiplied by 10 < -6 > m/m DEG C, when the temperature difference is 60 ℃ in the diameter direction, the expansion is 0.2mm, the expansion is very small, too large gaps cannot be formed between the outer surface of the water pipe and the cement sealing surface, air thermal resistance and water accumulation cavities for the heat transfer of water medium to the cement cannot be formed, and the purpose of dry heat transfer is achieved.
5. A heat pump type aqueous medium geothermal, ground cooling and semi-air cooling three-supply system according to claim 1, wherein: 1 host, 1 wall hanging machine, 1 ground supply control valve connecting pipe structure, 1 ground supply system and 1 control system are installed in 1 room, and the system is suitable for a single room; the wall hanging machine shell comprises a shell body, a panel arranged at the front lower part of the shell body, an air inlet window B arranged at the front upper part of the shell body and an air outlet window B arranged in the middle of the panel; the width of the wall hanging machine is 400mm, the height of the wall hanging machine is 400mm, and the thickness of the wall hanging machine is 150mm; the filter includes a general purification filter, an electrostatic air purifier or an anion air purifier.
6. A heat pump type aqueous medium geothermal, ground cooling and semi-air cooling three-supply system according to claim 1, wherein: in 2 rooms, 1 ground supply system and 1 wall hanging machine are respectively installed in each room, 1 host computer is shared, 1 set of ground supply control valve connecting pipe structure and 1 set of control system are suitable for a suite.
7. A heat pump type aqueous medium geothermal, geothermal and semi-air cooling three supply system according to claim 1, wherein: the operation modes of the heat pump type water medium geothermal, ground cooling and semi-air cooling three-supply system further comprise a fresh air and air purifier air supply system control mode, and the fresh air and air purifier air supply system control mode is carried out according to the wall hanging machine structure and the control system; when a common purifying filter is adopted, a fresh air valve, a plastic package fan and a transverse flow fan of the wall-mounted unit are opened, so that fresh air can be supplied to the indoor space, and indoor circulating air can be treated; the system can adjust the fresh air quantity, and can adjust the fresh air quantity according to the indoor personnel and the oxygen supply load, wherein the fresh air load of the personnel is 1 person and 30m3H; the filter is a common air purifier, an electrostatic air purifier or an anion air purifier.
8. A heat pump type aqueous medium geothermal, geothermal and semi-air cooling three supply system according to claim 1, wherein: the operation modes of the heat pump type water medium geothermal, ground cooling and semi-air cooling three-supply system also comprise a winter geothermal type direct air heating system control mode, wherein the winter geothermal type direct air heating system control mode is carried out by using a host machine, a ground supply control valve connecting pipe structure, a ground supply system and a control system; the system of the host air conditioner is started in a heating mode in winter, a compressor and a water pump are started through a control system, a working medium circulation loop for heating starts to operate, and cold air generated by an evaporator is discharged to the outside; the heat generated by the shell-and-tube condenser is transmitted to the water medium, the water outlet valve and the water return valve are opened, the on-hook valve is closed, the ground water supply inlet valve is opened, and the short circuit valve is opened; under the action of a water pump, low-temperature water in a water tank flows through a shell-and-tube condenser and is heated to 60 ℃ hot water, the hot water is discharged from a water outlet valve to a water inlet pipe and is discharged from a left pipe of a shunt three-way pipe to a short-circuit valve, and the hot water passes through the short-circuit valve, an upper measuring pipe of a confluence three-way pipe, a ground water supply inlet valve and a ground control system water inlet pipe and enters a water separator; the water distributor distributes the hot water to each water supply pipe group in a parallel mode respectively, and the heat is transferred to the ground airspace of the room through the floor tiles; the hot water of each water supply pipe group reduces the water temperature, and the low-water and warm water of each water supply pipe group is collected to the water collector, discharged to the water return valve through the water outlet pipe of the ground supply system and flows to the water tank;
when a heating working medium circulation loop is adopted in winter, the working medium R410A works in a main machine internal circulation system, and heat generated in a shell-and-tube condenser of the main machine is transferred to a heat conduction terminal device by a water medium of the shell-and-tube condenser through a water pump, a water outlet valve and a water inlet pipe; the compressor carries out isentropic compression on low-pressure low-temperature working medium gas sucked by the system in the evaporator to change the low-pressure low-temperature working medium gas into high-pressure high-temperature gas; leading the high-pressure high-temperature working medium gas through an exhaust pipe, flowing to a space system between an outer sleeve and an inner pipe of the shell-and-tube condenser, releasing heat to an aqueous medium of the inner pipe, and heating the aqueous medium;
the circulation process of the water medium in the heat pump type water medium geothermal, ground cooling and semi-air cooling three-supply system is as follows: the on-hook valve is closed, normal-temperature water in the water tank is fed to a ground supply system directly through a short-circuit valve under the action of a water pump through a pipe shell type condenser, the ground of a room is heated, and the hot water is cooled into the normal-temperature water; normal temperature water flows back to the water tank through a water outlet pipe of the ground supply system after losing the heating function, the normal temperature water in the water tank is heated by the pipe shell type condenser and is recovered into hot water, and the hot water is directly sent to the ground supply system through the short-circuit valve under the action of the water pump to form water medium circulation; the heating circulation system continuously and circularly operates to maintain the heat supplied to the ground supply system.
9. A heat pump type aqueous medium geothermal, ground cooling and semi-air cooling three-supply system according to claim 1, wherein: the wall hanging machine is fixedly arranged in the middle of the wall body; during refrigeration in summer, normal-temperature water in the water tank is cooled by the shell-and-tube condenser to become cold water at the temperature of 5-7 ℃, the cold water is firstly sent to the wall hanging machine through the hook valve, and the cold water absorbs heat and is heated in the wall hanging machine to become cold water at the temperature of 12-15 ℃ which is sent to a ground supply system to become normal-temperature water;
in summer, a reversing valve is opened, a main machine working medium internal circulation system is reversed to rotate clockwise, and a shell-and-tube condenser working medium circulation domain sucks low-pressure low-temperature working medium gas for isentropic compression by a compressor to convert the low-pressure low-temperature working medium gas into high-pressure high-temperature gas; the high-pressure high-temperature working medium gas is guided by the air suction pipe, flows to the internal space system of the evaporator, releases heat to the air of the external system of the evaporator, and hot air is discharged from the main engine to the outdoor space from the air outlet window; cooling the high-pressure high-temperature working medium into high-pressure normal-temperature liquid, and throttling the liquid into a low-pressure normal-temperature gas-liquid mixture through a capillary; the low-pressure normal-temperature gas-liquid mixed working medium enters the inner space of the sleeve of the shell-and-tube condenser to absorb the heat of the water medium in the inner tube and is evaporated into low-temperature low-pressure superheated gas, the water medium releases heat and cools the working medium to become a low-temperature water medium, and the low-temperature water medium is sent to a wall-mounted machine by a water pump to absorb heat to refrigerate in the indoor semi-empty space; after the low-temperature aqueous medium absorbs the heat of the indoor airspace, the temperature of the aqueous medium slightly rises, the temperature-rising aqueous medium is sent to a ground supply system to perform stepped refrigeration on the indoor ground airspace, and the ground airspace supplies a temperature slightly higher than the refrigeration temperature of the hollow space.
10. A heat pump type aqueous medium geothermal, ground cooling and semi-air cooling three-supply system according to claim 1, wherein: the control system is a PLC controller, and the compressor, the water pump, the plastic package motor, the fresh air valve, the shunt tee joint, the short circuit valve, the confluence tee joint, the on-hook valve and the ground water supply and inlet valve are all electrically connected with the PLC controller.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210913030.6A CN115264657A (en) | 2022-07-31 | 2022-07-31 | Heat pump type water medium geothermal, ground cooling and semi-air cooling three-supply system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210913030.6A CN115264657A (en) | 2022-07-31 | 2022-07-31 | Heat pump type water medium geothermal, ground cooling and semi-air cooling three-supply system |
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| CN115264657A true CN115264657A (en) | 2022-11-01 |
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| CN202210913030.6A Pending CN115264657A (en) | 2022-07-31 | 2022-07-31 | Heat pump type water medium geothermal, ground cooling and semi-air cooling three-supply system |
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