CN219367828U

CN219367828U - Heat pump type water medium geothermal heat, geothermal cold and semi-air cold three-supply system

Info

Publication number: CN219367828U
Application number: CN202222030091.6U
Authority: CN
Inventors: 邵安春; 王均; 董际鼎
Original assignee: Ningbo Dongda Air Conditioning Equipment Co ltd
Current assignee: Ningbo Dongda Air Conditioning Equipment Co ltd
Priority date: 2022-07-31
Filing date: 2022-07-31
Publication date: 2023-07-18
Anticipated expiration: 2032-07-31

Abstract

The heat pump type water medium geothermal, semi-air cooling three-supply system belongs to the technical field of room heat pump air conditioner water medium ground heating and refrigerating, and comprises a host machine, a geothermal system, a wall mounted machine, a geothermal control valve connecting pipe structure and a control system. The utility model adopts a two-stage three-supply system, and the first stage is the refrigeration and heating of an integral air source heat pump air conditioning system; the second stage is the water medium carrier end ground supply system single heat supply and the wall hanging machine plus ground supply system double cold supply; 1 or more than 1 room, each room is provided with 1 wall-mounted machine, 1 ground supply system, 1 host machine, 1 ground supply control valve connecting pipe structure and 1 control system; the beneficial effects of the utility model are as follows: avoiding condensation on the ground, reducing the equipment investment cost, saving energy and introducing fresh air.

Description

Heat pump type water medium geothermal heat, geothermal cold and semi-air cold three-supply system

Technical Field

The utility model relates to a heat pump type water medium cooling or heating system, in particular to a room heat pump type water medium geothermal heat, geothermal cold and semi-air cold three-supply system, belonging to the technical field of room heat pump air conditioner water medium ground heating and refrigerating.

Background

Because the heat pump type geothermal heating is not suitable for ground cooling refrigeration, a double-combined supply system adopting the heat pump geothermal heating to heat pump air refrigeration is difficult to be applied to the past. At present, the modes of electric geothermal heat or gas furnace geothermal heat and single refrigeration air conditioner refrigeration are more, and the two geothermal heats have great hidden trouble in safety and high use cost.

In the increasingly popular large environment of room air conditioners, the problems of high noise, high electricity consumption, instability of heating and refrigeration and sensitivity of people to cold and heat are caused by the room air conditioners. The heat is always transmitted by hot air to rise, cold air to sink, the upper half space is an unmanned area, and the cold energy or heat transmission of the conventional wall-mounted air conditioner causes a great amount of energy waste. In recent years, geothermal heating has been recently started, geothermal heating saves energy by 60% compared with electric floor heating and by more than 30% compared with space heating, but a refrigerating system cannot be used due to the problem of condensation water pollution.

Heat pump geothermal energy is already a mature technology for energy-saving winter heating, but the refrigerating function of the heat pump air conditioner cannot be applied to ground cooling refrigeration, and the main reason is that the cold quantity of the ground cooling of the heat pump cannot be uploaded to cause the damage of ground condensation and cold damp air on the feet of a human body. The single heat pump type water medium geothermal system has large size, the refrigerating system cannot be used due to the problem of condensation water pollution, the room is refrigerated in summer, and the cost of primary installation is increased.

The ground refrigeration is adopted in summer, the air temperature in summer is high, the air humidity is also higher, the relative humidity in rainy days can reach 100% of high humidity climate, and the possibility of condensation exists only if the ground refrigeration ground temperature is lower than the air temperature above the ground. The ground airspace and the room airspace have larger temperature gradient, and the temperature of the ground airspace is very easy to be lower than the dew point temperature of the ground airspace, so that ground condensation is caused.

The ground temperature is the lowest when the ground is purely refrigerated, although the indoor air has the characteristic of convection heat transfer, the ground low temperature is difficult to upload, the humidity of a room can be concentrated on the ground, the relative humidity of the ground reaches a condensation state, the ground condenses water, the relative humidity of the air on the ground layer is close to a saturation state, and the feet of a person are immersed in cold and wet for a long time, so that the person is infected with rheumatism, and the body health is affected.

Disclosure of Invention

The utility model aims at solving the defects that in the prior art, a single heat pump type water medium geothermal system is large in size, a refrigerating system cannot be used due to condensation water pollution, and another set of air conditioner for single refrigeration is used for refrigerating a room in summer, and initial installation cost is increased.

The technical scheme adopted by the utility model for realizing the purpose is as follows: the heat pump type water medium geothermal, semi-air cooling three-supply system comprises a host, a wall mounted machine, a geothermal control valve connecting pipe structure, a geothermal 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 double-supply system, and 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 pipe, a water pump, a water tank, a water return valve, a sewer pipe, a middle water pipe, a water supply pipe, a water outlet valve, a fan, a refrigerating or heating working medium and an aqueous medium; the compressor, the reversing valve, the shell-and-tube condenser, the capillary tube and the evaporator are connected with each other through working medium pipes to form a refrigeration working medium circulation loop or a heating working medium circulation loop; the operation of the host machine comprises a refrigeration mode or a heating mode, wherein in the heating mode, heating working medium flows in the anticlockwise direction, namely along the direction of the compressor, the reversing valve, the shell-and-tube condenser, the capillary tube and the evaporator, and returns to the direction of the compressor; in the refrigeration mode, conversely, the refrigeration working medium flows in a clockwise direction; 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 the inlet of the water pump through a sewer pipe, the 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 a water supply pipe;

The ground supply system comprises a heat insulation partition board, cold and hot water pipes, cast cement, PVC floor stickers and floor tiles, wherein the heat insulation partition board, the cast cement, the PVC floor stickers and the floor tiles are paved on the ground of a room from bottom to top in sequence; the heat-insulating partition board can prevent heat transfer to the downstairs and avoid causing energy loss; the cold and hot water pipes are arranged in groups and are uniformly buried 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 of each pipe group is distributed by a water separator, and backwater of each pipe group is collected by a water collector and then flows back to the water tank; the diameter of the cold and hot water pipe is 16-24mm, and the paving interval 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 water medium flowing in the cold and hot water pipe is cold and hot water with the temperature of 20-60 ℃ and the temperature difference exceeds that of a single geothermal water pipe;

the wall-mounted machine comprises a wall-mounted machine inner structure and a wall-mounted machine shell, wherein the wall-mounted machine inner structure is arranged in the wall-mounted 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, and provides a low-temperature water flow cold source for the wall-mounted machine, so that the room can be heated in winter and cooled in summer; the wall-mounted machine 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 or more than 1 room, each room is provided with 1 wall-mounted machine, 1 ground supply system, 1 host machine, 1 ground supply control valve connecting pipe structure and 1 control system;

The wall-mounted machine comprises a volute, a plastic package motor, a cross flow fan, a fresh air valve, a finned tube heat exchanger and a filter, wherein the inner structure of the wall-mounted 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 scroll is arranged at the lower part of the wall-mounted machine shell, the plastic package motor and the cross flow fan are arranged in the scroll, and the plastic package motor is rotationally connected with the cross 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 fin tube heat exchanger through the filter to become cold air, and the cold air is discharged by the cross flow fan; the fresh air valve has the functions that: the fresh air quantity can be regulated, the low-temperature fresh air quantity which can be large or small can be supplied to the room, the normal-temperature fresh air quantity can also be supplied when the cooling and heating are not performed, and the fresh air valve can be closed when fresh air is not used.

The ground supply control valve connecting pipe structure comprises a water inlet pipe, a split tee joint, a short circuit valve, a converging tee joint, a through-hanging machine 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 which are connected in parallel; one end of each ground water supply pipe group is connected with the water separator, the other end of each ground water supply pipe group is connected with the water collector, the water collector is connected with the inlet of the water outlet pipe of the ground supply system, and the outlet of the water outlet pipe of the ground supply system is connected with the water return valve of the host; when the short-circuit valve is connected, the hot water from the shell-and-tube condenser is directly supplied to the ground supply system; the outlet end of the water inlet pipe is connected with the inlet of the shunt tee; the left side pipe of the shunt tee is connected with the upper measuring pipe of the confluence tee through a short-circuit valve, the outlet of the other side of the shunt tee is connected with the water inlet pipe of the wall mounted machine through a through-mounted machine valve, the water outlet pipe of the wall mounted machine is connected with the inlet of the other side of the confluence tee, and the outlet of the confluence tee is connected with the inlet of the water inlet pipe of the ground supply system through a ground supply water inlet valve;

The utility model adopts a two-stage three-supply system, and the first stage is the refrigeration and heating of an integral air source heat pump air conditioning system; the second stage is the water medium carrier end ground supply system single heat supply and the wall hanging machine plus ground supply system double cold supply; the control mode of the summer temperature difference type water medium secondary three-supply system is performed 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 host air conditioner system is in a refrigerating mode, a compressor and a water pump are started through a control system, the refrigerating tool flows in a clockwise direction to circulate in a loop, and hot gas generated by the evaporator is discharged outdoors; the cold produced 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 inlet valve is opened, and the short-circuit valve is closed; under the action of a water pump, normal-temperature water of a water tank flows through a shell-and-tube condenser, low-temperature cold water with the temperature of 5-7 ℃ is reduced, the cold water is discharged from a water outlet valve to a water inlet pipe and is discharged from a right side pipe of a split three-way pipe to a through-hanging machine valve, the cold water sequentially passes through the through-hanging machine valve from top to bottom and is led to a wall hanging machine in the mid-air, a finned tube heat exchanger in the wall hanging machine carries out cold and heat exchange, indoor circulating air passing through the heat exchanger is cooled to a comfortable temperature, and is discharged to an indoor lower half-air area under the action of a cross-flow fan, and meanwhile, ground air space air is cooled; the low-temperature cold water in the wall-mounted machine absorbs heat and rises to form medium-temperature cold water Wen Liangshui, and the medium-temperature cold water is discharged to a ground water supply valve of the ground water supply system and enters the water separator through a water inlet pipe of the ground control system; the water separator is used for respectively dividing cold water into water supply pipe groups in a parallel mode, naturally transferring cold to a ground airspace, performing dry cooling on air of the ground airspace to obtain a comfortable temperature, converging the cold air with indoor circulating cold air passing through a wall-mounted machine heat exchanger, and creating a comfortable environment airspace; the middle Wen Liangshui of each water supply pipe group absorbs the heat of floor tiles and the air in the ground airspace and then heats up to form warm water, the middle Wen Liangshui transfers heat and cold to the floor tiles through the water pipe, the ground temperature is higher than the low temperature of the ground airspace, the cold water in the ground transfers the cold temperature to the low temperature air higher than the ground airspace, and the ground cannot be condensed; the normal temperature water of each water supply pipe group is collected to a water collector and flows back to the water tank through a water outlet pipe and a water return valve of the ground supply system;

When in refrigeration 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 flows in the same direction with the working medium; the evaporation process of the working medium in the evaporator should be isothermal evaporation, and the reverse direction is not greatly different from the same direction, but when the working medium actually runs in 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 flows in the same direction with the working medium, 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 water medium circulation process in the heat pump type water medium geothermal, geothermal and semi-air cooling three-supply system comprises the following steps: when the refrigerating machine is used for refrigerating in summer, the short-circuit valve is closed, normal-temperature water in the water tank is cooled to be 5-7 ℃ cold water through the shell-and-tube condenser, and the cold water is firstly sent to the wall hanging machine through the through hanging machine valve under the action of the water pump, is cooled forward to the ground in a half-airspace of a room, is changed into cold water after the wall hanging machine absorbs heat and heats up, and is sent to the ground supply system, and is cooled to the floor tiles and the ground airspace, the floor tiles and the ground airspace are cooled to the set temperature, the cold water temperature in the ground supply system absorbs heat and rises to be normal-temperature water, and the purpose of creating a high-low step healthy small-temperature difference airspace under the half-airspace of the room is achieved; because the room semi-airspace is also a small gradient with upper cooling and lower cooling, 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; the temperature gradient is more suitable for the healthy temperature from the foot part of the human body to the head part of the human body; after the refrigerating function of the water tank is lost, the normal temperature water in the water tank flows back to the water tank through the water outlet pipe of the ground supply system, is cooled by the shell-and-tube condenser and is recovered to be cold water with the temperature of 5-7 ℃, and is sent to a wall-mounted machine through the through-mounted machine valve under the action of the water pump, so that new circulation is performed;

The compressor comprises an interface A and an interface B, and the reversing valve comprises an interface C, an interface D, an interface E and an interface 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 pipes to form a heating working medium circulation loop flowing in a counterclockwise 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 working medium pipes to form a refrigerating working medium circulation loop flowing in a clockwise direction; the refrigerating and heating working medium in the refrigerating or heating working medium circulation loop is 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 sheet; the cold and hot water pipe is a PE-RE steel-plastic composite pipe for cold and hot use or an aluminum-plastic composite pipe, the diameter of the cold and hot water pipe is 20mm, and the paving interval of the cold and hot water pipe 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 bricks are marble, floor tiles or composite floors, and the thickness of the floor bricks is 20mm; the water pipe groups are fixedly installed by using staples, buckles and the like, and cement should be poured between the water pipes of the water pipe groups and the space between the water pipes and the surrounding basement; the water pipe group can bear expansion and contraction deformation of cold water and hot water at 20-60 ℃, and the outer surface of the water pipe is in contact sealing fixation with cement under the condition of sealing cement pouring fixation;

The expansion coefficient of the steel-plastic composite water pipe is 180 multiplied by 10 < -6 > m/m, when the temperature difference in the diameter direction is 60 ℃, the expansion is 0.2mm, the expansion is very small, a too large gap between the outside of the water pipe and a cement sealing surface cannot occur, the air thermal resistance and the water accumulation cavity of the water medium for heat transfer of cement cannot occur, and the purpose of dry heat transfer is achieved.

The wall-mounted 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 comprises a common purifying filter, an electrostatic air purifier or a negative ion air purifier.

The operation mode of the heat pump type water medium geothermal, semi-air cooling three-supply system also comprises 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 cross flow fan of the wall mounted machine are opened, so that fresh air can be supplied to the room, and the indoor circulating air can be treated; because the system has the semi-air-space refrigerating technology, provides conditions for fresh air supply and air purification of a geothermal system and a central air conditioner, and can adjust the fresh air quantity according to the indoor personnel and the oxygen supply load The fresh air load of the personnel is 1 person 30m when the fresh air quantity is saved ³ /h; the filter is a common air purifier, an electrostatic air purifier or a negative ion air purifier, and for the electrostatic air purifier or the negative ion air purifier, a power supply of the purifier is started, and meanwhile, a cross flow fan is started to purify indoor circulating air; the air purifier can provide fresh air and air purification of the whole room all weather, and can supply the fresh air and purify the air of the whole room no matter when heating, refrigerating or not heating or not refrigerating.

The operation mode of the heat pump type water medium geothermal, geothermal and semi-air cooling three-supply system also comprises a winter geothermal direct air heating system control mode, wherein the winter geothermal direct air heating system control mode is carried out by a host, a geothermal control valve connecting pipe structure, a geothermal system and a control system; in winter, the host air conditioner system is started to heat, 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 outdoors; 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 inlet valve is opened, and the short-circuit valve is opened; under the action of a water pump, low-temperature water of the water tank flows through the shell-and-tube condenser, the low-temperature water is heated to 60 ℃, the hot water is discharged from the water outlet valve to the water inlet pipe, is discharged from the left side pipe of the split three-way pipe to the short-circuit valve, and passes through the short-circuit valve, the upper measuring pipe of the converging three-way pipe, the ground water inlet valve and the ground control system water inlet pipe to enter the water separator; the water separator is used for respectively distributing hot water to each water supply pipe group in a parallel mode, heat is transferred to the room ground airspace through floor tiles, hot air can naturally transfer heat to the room hollow airspace in a convection mode, and a comfortable environment airspace is created; the hot water of each water supply pipe group reduces the water temperature, the low water temperature water of each water supply pipe group is collected to a water collector, discharged to a water return valve through a water outlet pipe of a ground supply system and flows to a water tank;

When a working medium circulation loop for heating is adopted in winter, a working medium R410A works in a host internal circulation system, and heat generated in a shell-and-tube condenser of the host is transferred to a heat conduction terminal device through a water pump, a water outlet valve and a water inlet pipe by an aqueous medium of the shell-and-tube condenser; the compressor carries out isentropic compression on low-pressure low-temperature working medium gas inhaled by a system in the evaporator to be changed into high-pressure high-temperature gas; high-pressure high-temperature working medium gas is guided by an exhaust pipe and flows to an airspace system between an outer sleeve and an inner tube of the shell-and-tube condenser to release heat to an inner tube water medium to heat the water medium;

when heating in winter, the condensing process has 3 temperature sections, and when the working medium is cooled from the compressor through the condenser, the working medium is subjected to high-temperature overheat cooling, isothermal cooling at the condensing temperature and supercooling cooling after being condensed into liquid working medium. The working medium flows reversely with water, and the higher the water temperature is naturally required in winter, the better. 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 overheat cooling stage;

the water medium circulation process in the heat pump type water medium geothermal, geothermal and semi-air cooling three-supply system comprises the following steps: the on-hook valve is closed, normal-temperature water in the water tank is sent to the ground supply system directly through the short-circuit valve under the action of the water pump through the shell-type condenser, the ground of the room is heated, the hot water is cooled to be warm water, and the purpose of creating a high-medium low-step small-temperature difference heat healthy temperature range under the semi-airspace of the room is achieved; after losing the heating function, the normal temperature water in the water tank flows back to the water tank through the water outlet pipe of the ground supply system, is heated by the shell-and-tube condenser and is recovered to hot water, and is directly sent to the ground supply system through the short-circuit valve under the action of the water pump, so that the water medium circulation is formed; the heating circulation system continuously and circularly operates to supply heat to the ground supply system.

1 ground supply system, 1 wall-mounted machine, 1 ground supply control valve connecting pipe structure and 1 control system are arranged 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; when in refrigeration in summer, normal temperature water in the water tank is cooled to be 5-7 ℃ cold water through the shell-and-tube condenser, the cold water is firstly sent to the wall hanging machine through the through hanging machine valve, and after the wall hanging machine absorbs heat and heats up, the cold water is changed to be 12-15 ℃ cold water, and then is sent to the ground supply system to be changed to normal temperature water;

when in refrigeration in summer, the reversing valve is opened, the host working medium internal circulation system reverses and changes to run clockwise, and the compressor sucks low-pressure low-temperature working medium gas into the working medium circulation area of the shell-and-tube condenser to perform isentropic compression to change into high-pressure high-temperature gas; the high-pressure high-temperature working medium gas is guided by the air suction pipe and flows to the internal airspace system of the evaporator to release heat to the air of the external system of the evaporator, and the hot air is discharged from the air outlet window to the outdoor airspace from the host; the high-pressure high-temperature working medium is cooled into high-pressure normal-temperature liquid, and the high-pressure normal-temperature liquid is throttled by a capillary tube to become a low-pressure normal-temperature gas-liquid mixture; the low-pressure normal-temperature gas-liquid mixed working medium enters an air space in a sleeve of the shell-and-tube condenser to absorb heat of an inner tube water medium and evaporate into low-temperature low-pressure superheated gas, the water medium releases heat to the working medium and cools down to become a low-temperature water medium, and the low-temperature water medium is pumped to a wall-mounted machine by a water pump to absorb heat and refrigerate to an indoor semi-air space; after the low-temperature water medium absorbs the heat of the indoor airspace, the temperature of the water medium slightly rises, the warmed water medium is sent to the ground supply system, the ground airspace is subjected to stepped refrigeration, and the ground airspace supply temperature is slightly higher than the hollow domain refrigeration temperature.

In 2 rooms, 1 ground supply system, 1 hanging machine are installed respectively in every room, 1 host computer altogether, and 1 set of ground supply control valve connecting tube structure and 1 set of control system are applicable to the interplant.

The control system is a PLC controller, and the compressor, the water pump, the plastic package motor, the fresh air valve, the split tee, the short-circuit valve, the converging tee, the through-hanging machine valve and the ground water supply valve are all electrically connected with the PLC controller.

The three-supply system control mode refrigeration principle of the temperature difference type water medium geothermal energy, ground cooling and semi-air cooling in summer is as follows: the heat pump type water medium geothermal, geothermal and semi-air cooling three-supply system adopts the water medium as an energy transmission carrier of an air conditioning system, so that the ground airspace temperature is higher than the semi-air domain temperature; the working medium in the shell-and-tube condenser evaporates and absorbs the heat of the water medium, and the temperature of the water medium is reduced to 5-7 ℃; the water medium absorbs the air heat passing through the wall-mounted machine heat exchanger at the semi-airspace of the room to become cold energy for reducing the air temperature of the semi-airspace, and the high temperature of 35 ℃ of the semi-airspace can gradually be reduced to the control temperature; after absorbing heat, the water medium in the wall-mounted machine of the semi-airspace is heated to 17-20 ℃ and enters an on-ground supply system for refrigeration, namely ground cooling; the 17-20 ℃ water medium flows to the ground water supply pipe group to absorb heat of the floor tiles and the air of the ground airspace, and the cold energy is transmitted to the floor tiles and the ground airspace in a heat conduction way to reduce the temperature of the floor tiles and the air of the ground airspace; because the temperature of the cold source water medium of the ground water supply pipe group is higher than that of the cold source water medium of the wall-mounted machine, the air temperature of the ground and 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;

Geothermal heat is transmitted from the ground to a half airspace, accords with the principle of forward transmission of hot gas, has small temperature gradient of heat transmission from the ground to the half airspace, and is an important cause of energy conservation; the ground cooling heat transfer mode is also focused on meeting the requirements of a half airspace and a ground airspace, and after meeting the requirements of the ground and the half airspace, the waste cooling quantity transmitted to the space above the half airspace is extremely small, so that the ground cooling heat transfer is more energy-saving than the geothermal heat transfer.

Under the action of the plastic package motor and the cross flow fan, indoor hot air and part of introduced fresh air enter the wall-hung machine from the air inlet window B, enter the finned tube heat exchanger after being purified by the filter, exchange heat in the finned tube heat exchanger, change the hot air into cold air, and cool the air from the air outlet window on the panel into choking; the cold air is forced to spread to the indoor ground, the temperature of the ground airspace is quickly reduced, and the ground supply system naturally delays the heat transfer to the refrigeration of the ground airspace, so that the dew point temperature and the dry bulb temperature of the cold air are pulled apart, and the condensation of the ground is prevented.

Compared with the prior art, the utility model has the beneficial effects that:

(1) Avoid ground condensation: the utility model adopts the ground supply system and the wall-mounted machine semi-airspace refrigerating system to carry out series stepped refrigeration, the refrigeration temperature of ground refrigeration is higher than the refrigeration temperature of wall-mounted machine by more than 5 ℃, the refrigeration capacity of 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 ground condensation problem is solved.

(2) The equipment investment cost is reduced: the utility model adopts the combined refrigeration technology of the ground supply system and the wall-mounted half-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 total cold capacity, the structures of the finned tube heat exchanger, the cross-flow fan system and the wall-mounted machine can be reduced, and the total load design cost of the indoor machine is reduced by 50%.

(3) Energy conservation: the wall-mounted machine half-airspace refrigerating system is arranged in a half-airspace of a wall body, and the wall-mounted machine is positioned at a half-height position of a room airspace; the main heat transfer direction of the cold air in the airspace is sinking, the hollow airspace is the cold receiving position of the personnel, the airspace above the half airspace basically has no cold rise, and the energy is saved by more than 40% compared with the downward propagation of the air conditioner from the roof airspace by adopting a fan coil.

(4) Fresh air can be introduced: the wall-mounted machine semi-airspace refrigeration is adopted to provide 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 on-hook on the inner wall of the room, the placing structure is not additionally increased, and the cost of the fresh air system and the air purifier is reduced.

Drawings

Fig. 1 is: a front view of the internal structure of the host;

fig. 2 is: a host component connection diagram;

Fig. 3 is: a perspective view of the host housing;

fig. 4 is: schematic cross-sectional structure of ground supply system;

fig. 5 is: a perspective view of the internal structure of the wall-mounted machine;

fig. 6 is: a wall-mounted machine shell perspective view;

fig. 7 is: the ground supply system, the wall mounted machine and the ground supply control valve connecting pipe structure are connected with a schematic top view;

fig. 8 is: an enlarged view of a portion a of fig. 7;

fig. 9 is: the ground supply system, the wall mounted machine and the ground supply control valve are connected with a schematic diagram front view through a connecting pipe structure;

fig. 10 is: the heat pump type water medium geothermal, semi-air cooling three-supply system assembly schematic diagram.

Reference numerals illustrate: host 1, host housing 101, front panel 101A, rear panel 101B, left side panel 101C, right side panel 101D, top cover panel 101E, compressor 102, interface a 102A, interface B102B, reversing valve 103, interface C103C, interface D103D, interface E103E, interface F103F, shell-and-tube condenser 104, capillary tube 105, evaporator 106, working fluid pipe 107, water pump 108, water tank 109, water return valve 1010, water drain pipe 1011, water pipe 1012, water supply pipe 1013, water outlet valve 1014, fan 1015, air intake window a 1016, air outlet window a 1017, ground supply system 2, thermal insulation barrier 201, cold and hot water pipe 202, poured cement 203 PVC flooring tile 204, floor tile 205, floor water supply stack a 206, floor water supply stack B207, floor water supply stack C208, wall station 3, wall station housing 301, scroll 302, plastic package motor 303, cross flow fan 304, fresh air valve 305, finned tube heat exchanger 306, filter 307, panel 308, air intake window B309, air outlet window B3010, floor control valve connecting structure 4, water inlet tube 401, manifold tee 402, shorting valve 403, manifold tee 404, on-hook valve 405, floor water inlet valve 406, floor system water inlet tube 407, water separator 408, water collector 409, floor system water outlet tube 4010.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1:

as shown in fig. 1 to 10, the heat pump type water medium geothermal, semi-air cooling three-supply system comprises a host machine 1, a wall-mounted machine 3, a geothermal control valve connecting pipe structure 4, a control system (not shown in the drawings), and a geothermal system 2; as shown in fig. 1 and fig. 2, the host 1 adopts a heat pump type water medium central air conditioning system, which is a cold and heat source dual-supply system, and the host 1 comprises an internal structure of the host 1 and a host shell 101; the internal structure of the host 1 includes 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 drain pipe 1011, a water drain pipe 1012, a water supply pipe 1013, a water outlet valve 1014, a fan 1015, a refrigerating or heating working medium, an aqueous medium and a control system (not shown); 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 pipe 107 to form a refrigeration working medium circulation loop or a heating working medium circulation loop; the operation of the host 1 includes a cooling mode or a heating mode, in which the heating medium flows in a counterclockwise direction, i.e., along the compressor 102, the reversing valve 103, the shell-and-tube condenser 104, the capillary tube 105, the evaporator 106, and back to the compressor 102; in the refrigeration mode, conversely, the refrigeration working medium flows in a clockwise direction; the shell-and-tube condenser 104 comprises a coil pipe and a condensing working medium pipe 107 penetrating through the coil pipe; 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 the inlet of the water pump 108 through a sewer pipe 1011, the outlet of the water pump 108 is connected with the lower end of a coil pipe through a medium water pipe 1012, and the upper end of the coil pipe is connected with the water outlet valve 1014 through a water supply pipe 1013;

As shown in fig. 4 and 7, the ground supply system 2 comprises a heat insulation partition 201, cold and hot water pipes 202, casting cement 203, PVC floor tiles 204 and floor tiles 205, wherein the heat insulation partition 201, the casting cement 203, the PVC floor tiles 204 and the floor tiles 205 are paved on the ground of a room from bottom to top; the heat-insulating partition 201 can prevent heat transfer to the downstairs and avoid causing energy loss; the cold and hot water pipes 202 are arranged in groups and uniformly buried in the casting cement 203, and the cold and hot water pipes 202 and the casting cement 203 form a fixed water supply pipe group; the water supply of each pipe group is distributed by a water separator 408, and the backwater of each pipe group is collected by a water collector 409 and then flows back to the water tank 109; the diameter phi of the cold and hot water pipe 202 is 20mm, and the paving interval m of the cold and hot water pipe 202 is 110mm; the thickness q of the heat insulation partition 201 is 48mm, the thickness r of the poured cement 203 is 20mm, the thickness s of the PVC floor paste 204 is 5mm, and the thickness t of the floor tile 205 is 20mm; the water medium flowing in the cold and hot water pipe 202 is cold and hot water with the temperature of 20-60 ℃ and the temperature difference exceeds that of a single geothermal water pipe;

as shown in fig. 5 to 9, the wall hanging machine 3 includes a wall hanging machine 3 internal structure and a wall hanging machine housing 301, and the wall hanging machine 3 internal structure is disposed in the wall hanging machine housing 301; the host machine 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, and provides a low-temperature water flow cold source for the wall-mounted machine, so that the room can be heated in winter and cooled in summer; the wall-mounted machine and ground supply system 2 is an 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-mounted machine, 1 ground supply control valve connecting pipe structure, 1 ground supply system and 1 control system are arranged in 1 room, and the system is suitable for a single room;

As shown in fig. 5, the wall-mounted device 3 includes a scroll 302, a plastic package motor 303, a cross flow fan 304, a fresh air valve 305, a fin tube heat exchanger 306, and a filter 307; the scroll casing 302 is arranged at the lower part of the wall-mounted casing 301, the plastic package motor 303 and the cross flow fan 304 are arranged in the scroll casing 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 sequentially arranged 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 package motor 303 and the cross flow fan 304, indoor hot air enters the fin 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 in: the fresh air volume can be regulated, the low-temperature fresh air volume which can be large or small can be supplied to the room, the normal-temperature fresh air volume can be supplied when the cooling and heating are not performed, 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 split tee 402, a short-circuit valve 403, a confluence tee 404, a through-hanging 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 the water outlet valve 1014 of the host 1; the outlet of the ground supply system water inlet pipe 407 is connected with a water separator 408, and the ground supply system 2 comprises a plurality of ground water supply pipe groups which are connected in parallel; one end of the 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 the outlet of the ground supply system water outlet pipe 4010, and the outlet of the ground supply system water outlet pipe 4010 is connected with the water return valve 1010 of the host 1; when the short-circuit valve 403 is on, the hot water from the shell-and-tube condenser 104 is fed straight through to the ground supply system 2; the outlet end of the water inlet pipe 401 is connected with the inlet of the diversion tee 402; the left side pipe of the shunt tee 402 is connected with the upper measuring pipe of the confluence tee 404 through a short-circuit valve 403, the outlet at the other side of the shunt tee 402 is connected with the water inlet pipe 401 of the wall hanging machine 3 through a through-hanging machine valve 405, the water outlet pipe of the wall hanging machine 3 is connected with the inlet at the other side of the confluence tee 404, and the outlet of the confluence tee 404 is connected with the inlet of the water inlet pipe 407 of the ground supply system through a ground supply water inlet valve 406;

As shown in fig. 7, 8 and 9, the operation modes of the heat pump type water medium geothermal, geothermal and semi-air cooling three-supply system comprise a summer temperature difference type water medium geothermal, geothermal and semi-air cooling three-supply system control mode, wherein the summer temperature difference type water medium geothermal, geothermal and semi-air cooling three-supply system control mode is performed by a host machine 1, a wall-mounted machine 3, a ground supply control valve connecting pipe structure 4, a ground supply system 2 and a control system; in summer, the host air conditioner system is in a refrigerating mode, the compressor 102 and the water pump 108 are started through the control system, the refrigerating working fluid flows in a clockwise direction to circulate in a loop, and hot gas generated by the evaporator 106 is discharged outdoors; the cold generated by the shell-and-tube condenser 104 propagates 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 inlet valve 406 is opened, and the short-circuit valve 403 is closed; under the action of the water pump 108, normal-temperature water of the water tank 109 flows through the shell-and-tube condenser 104, low-temperature water with the temperature of 5-7 ℃ is reduced, the cold water is discharged from the water outlet valve 1014 to the water inlet pipe 401, is discharged from the right side pipe of the split tee 402 pipe to the through-hanging machine valve 405, passes through the through-hanging machine valve 405, and sequentially passes through the wall hanging machine 3 positioned in the mid-air from top to bottom, the fin-tube heat exchanger 306 in the wall hanging machine 3 exchanges cold and heat, the indoor circulating air passing through the heat exchanger is cooled to a comfortable temperature, and is discharged to the indoor lower half-air area under the action of the cross-flow fan 1015, and meanwhile, the ground air is cooled; the low-temperature cold water in the wall-mounted machine 3 absorbs heat and rises to form medium Wen Liangshui, and the medium-temperature cold water is discharged to the ground supply water inlet valve 406 of the ground supply system 2 and enters the water separator 408 through the ground control system water inlet pipe 401; the water separator 408 divides cold water into water supply pipe groups in parallel, naturally transfers cold to the ground airspace, and performs dry cooling to the ground airspace air to be at a comfortable temperature, and merges the cold air with indoor circulation 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 bricks 205 and the air in the ground airspace and then rises to become warm water, and the warm water does not generate condensation on the floor bricks 205; normal temperature water of each water supply pipe group is collected to a water collector 409 and flows back to the water tank 109 through a ground supply system water outlet pipe 4010 and a water return valve 1010;

When in refrigeration 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 flows in the same direction with the working medium; the evaporation process of the working medium in the evaporator 106 is isothermal evaporation, the reverse direction is not greatly different from the same direction, but when the working medium actually runs in 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 flows in the same direction with the working medium, 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 10, the water medium circulation process in the heat pump type water medium geothermal, geothermal and semi-air cooling three-supply system comprises the following steps: when in refrigeration in summer, the short-circuit valve 403 is closed, normal-temperature water in the water tank 109 is cooled to be cold water at 5-7 ℃ through the shell-and-tube condenser 104, and is firstly sent to the wall hanging machine 3 through the through hanging machine valve 405 under the action of the water pump 108, the cold water is cooled forward to the ground in a semi-airspace of a room, and is changed into cold water after the wall hanging machine absorbs heat and heats up, and is sent to the ground supply system 2, the cold water is transferred to the floor brick 205 and the ground airspace, and is changed into warm water, so that the purpose of creating a healthy small-temperature difference airspace of high, medium, low steps under the semi-airspace of the room is achieved; because the room semi-airspace is also a small gradient with upper cooling and lower cooling, 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; the temperature gradient is more suitable for the healthy temperature from the foot part of the human body to the head part of the human body; after losing the refrigeration function, the normal temperature water in the water tank 109 flows back to the water tank 109 through the ground supply system water outlet pipe 4010, is cooled by the shell-and-tube condenser 104, is restored to cold water with the temperature of 5-7 ℃, and is sent to the wall hanging machine 3 through the on-hook valve 405 under the action of the water pump 108, so as to perform new circulation.

As shown in fig. 2, the compressor 102 includes an interface a 102A and an interface B102B, and the reversing valve 103 includes an interface C103C, an interface D103D, an interface E103E, and an interface F103F; the interface A102A, the interface C103C, the interface E103E, the shell-and-tube condenser 104, the capillary tube 105, the evaporator 106, the interface F103F, the interface D103D and the interface B102B are sequentially connected with each other through a working medium pipe 107 to form a heating working medium circulation loop flowing in a counterclockwise direction, and the interface A102A, the interface C103C, the interface F103F, the evaporator 106, the capillary tube 105, the shell-and-tube condenser 104, the interface E103E, the interface D103D and the interface B102B are sequentially connected with each other through the working medium pipe 107 to form a cooling working medium circulation loop flowing in a clockwise direction; the refrigerating and heating working medium in the refrigerating or heating working medium circulation loop is working medium R410A.

As shown in fig. 3, the main body housing 101 includes a front panel 101A, a rear panel 101B, a left side panel 101C, a right side panel 101D, and a top cover 101E, an air inlet window a 1016 provided on the top cover 101E, an air outlet window a 1017 provided on the front panel 101A, and a water return valve 1010 and a water outlet valve 1014 provided at the bottom of the left side panel 101C.

As shown in fig. 4, 7 and 9, the floor supply system 2 includes a floor water supply pipe group a 206, a floor water supply pipe group B207 and a floor water supply pipe group C208; the floor tile 205 is a composite floor, and the heat insulation partition 201 is a high-density hard polystyrene foam board with a heat conductivity coefficient equal to 0.05w/m.k or an extruded sheet; the cold and hot water pipe 202 is a PE-RE cold and hot steel-plastic composite pipe or an aluminum-plastic composite pipe; the water pipe groups are fixedly installed by using staples, buckles and the like, and cement should be poured between the water pipes of the water pipe groups and the space between the water pipes and the surrounding basement; the water pipe group can bear expansion and contraction deformation of cold water and hot water at 20-60 ℃, and the outer surface of the water pipe is in contact sealing fixation with cement under the condition of sealing cement pouring fixation;

As shown in FIG. 4, the expansion coefficient of the steel-plastic composite water pipe is 180 multiplied by 10 < -6 > m/m DEG C, the expansion is 0.2mm when the temperature difference is 60 ℃ in the diameter direction, the expansion is very small, a too large gap between the outside of the water pipe and a cement sealing surface cannot occur, the air thermal resistance and the water accumulation cavity of the water medium for heat transfer of cement cannot occur, and the purpose of dry heat transfer is achieved.

As shown in fig. 5 and 6, the wall-mounted casing 301 includes a casing main body, a panel 308 disposed at a front lower portion of the casing main body, an air inlet window B309 disposed at a front upper portion of the casing main body, and an air outlet window B3010 disposed at a middle portion of the panel 308; the filter 307 includes a general purifying filter 307, an electrostatic air purifier, or a negative ion air purifier.

As shown in fig. 5 and 6, the operation modes of the heat pump type water medium geothermal, 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 performed according to the wall-mounted machine 3 structure and the control system; when the common purifying filter 307 is adopted, the fresh air valve 305, the plastic package fan 1015 and the cross flow fan 1015 of the wall-mounted machine 3 are opened, so that fresh air can be supplied to the room, and the indoor circulating air can be treated; because the system has a half-air-space refrigerating technology, provides conditions for fresh air supply and air purification of a geothermal system and a central air conditioner, and provides adjustable fresh air quantity, the fresh air quantity of the indoor personnel and the oxygen supply load can be adjusted according to the fresh air quantity of the indoor personnel, and the fresh air load of the personnel is 1 person and 30m ³ /h; the filter 307 is a conventional air cleaner, an electrostatic air cleaner or a negative ion air cleaner, and for the electrostatic air cleaner or the negative ion air cleaner, the power supply of the purifier should be turned on, and the cross flow fan 1015 is turned on to purify the indoor circulating air; the air purifier can provide fresh air and air purification of the whole room all weather, and can supply the fresh air and purify the air of the whole room no matter when heating, refrigerating or not heating or not refrigerating.

As shown in fig. 7, 8 and 9, the operation modes of the heat pump type water medium geothermal, semi-air-cooled three-supply system further comprise a winter geothermal type direct air heating system control mode, wherein the winter geothermal type direct air heating system control mode is performed by a host machine 1, a geothermal control valve connecting pipe structure 4, a geothermal system 2 and a control system; in winter, the host air conditioner system is started to be heated, the compressor 102 and the water pump 108 are started through the control system, the working medium circulation loop for heating starts to operate, and cold air generated by the evaporator 106 is discharged outdoors; the heat generated by the shell-and-tube condenser 104 is transferred 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, the low-temperature water of the water tank 109 flows through the shell-and-tube condenser 104, heats the low-temperature water to 60 ℃ hot water, and the hot water is discharged from the water outlet valve 1014 to the water inlet pipe 401, is discharged from the left pipe of the split tee 402 pipe to the short-circuit valve 403, passes through the short-circuit valve 403, the upper pipe of the converging tee 404, the ground water inlet valve 406 and the ground control system water inlet pipe 401 and enters the water separator 408; the water separator 408 respectively divides the hot water to each water supply pipe group in a parallel mode, and transfers heat to the room ground airspace through the floor tiles 205, so that the hot gas can naturally transfer heat to the room 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, the low water temperature water of each water supply pipe group is collected to the water collector 409, discharged to the water return valve 1010 through the ground supply system water outlet pipe 4010, and flows to the water tank 109;

As shown in fig. 2 and 9, when a working medium circulation loop for heating is adopted in winter, a working medium R410A works in a host internal circulation system, and heat generated in a shell-and-tube condenser 104 of a host 1 is transferred to a heat conduction end device by an aqueous 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 inhaled 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 and flows to an airspace system between the outer sleeve and the inner tube of the shell-and-tube condenser 104, and releases heat to the water medium of the inner tube to heat the water medium;

in winter heating, the condensing process has 3 temperature sections, and when the working medium is cooled from the compressor 102 through the condenser, the working medium is subjected to high-temperature overheat cooling, isothermal cooling at condensing temperature and supercooling cooling after being condensed into liquid working medium. The working medium flows reversely with water, and the higher the water temperature is naturally required in winter, the better. 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 overheat cooling stage;

as shown in fig. 2 and 9, the water medium circulation process in the heat pump type water medium geothermal, geothermal 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 sent to the ground supply system 2 directly through the short-circuit valve 403 under the action of the water pump 108 through the shell-and-tube condenser 104, and the hot water is cooled to be the warm water for heating the ground of the room, so that the purpose of creating a high-medium low-step small-temperature difference thermal health temperature domain under the semi-airspace of the room is achieved; after losing the heating function, the normal temperature water in the water tank 109 flows back to the water tank 109 through the ground supply system water outlet pipe 4010, is heated by the shell-and-tube condenser 104 and is recovered to hot water, and 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 circulation system is continuously and circularly operated, and heat is supplied to the ground supply system 2.

As shown in fig. 8 and 9, the wall hanging machine 3 is fixedly arranged in the middle of the wall; when in refrigeration in summer, normal-temperature water in the water tank 109 is cooled to be cold water with the temperature of 5-7 ℃ through the shell-and-tube condenser 104, and is firstly sent to the wall hanging machine 3 through the through hanging machine valve 405, and the cold water is changed into cold water with the temperature of 12-15 ℃ after the wall hanging machine absorbs heat and heats up, and is sent to the ground supply system 2 to be normal-temperature water;

when in refrigeration in summer, the reversing valve 103 is opened, the working medium internal circulation system of the host 1 reverses and changes to run clockwise, the compressor 102 sucks low-pressure low-temperature working medium gas into the working medium circulation area of the shell-and-tube condenser 104 for isentropic compression, and the working medium gas becomes high-pressure high-temperature gas; the high-pressure high-temperature working medium gas is guided by the air suction pipe and flows to an air space system in the evaporator 106, releases heat to the air of the system outside the evaporator 106, and the hot air is discharged from the host 1 to an outdoor air space through the air outlet window B3010; the high-pressure high-temperature working medium is cooled into high-pressure normal-temperature liquid, and is throttled by a capillary tube 105 to become a low-pressure normal-temperature gas-liquid mixture; the low-pressure normal-temperature gas-liquid mixed working medium enters a sleeve inner space of the shell-and-tube condenser 104 to absorb heat of an inner tube water medium and evaporate into low-temperature low-pressure superheated gas, the water medium releases heat to the working medium and cools down to become a low-temperature water medium, and the low-temperature water medium is sent to the wall-mounted machine 3 by a water pump 108 to absorb heat and refrigerate to an indoor semi-space; after the low-temperature water medium absorbs the heat of the indoor airspace, the temperature of the water medium slightly rises, the warmed water medium is sent to the ground supply system 2, the ground airspace is subjected to stepped refrigeration, and the ground airspace supply temperature is slightly higher than the hollow domain refrigeration temperature.

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 valve 406 are all electrically connected with the PLC controller.

The three-supply system control mode refrigeration principle of the temperature difference type water medium geothermal energy, ground cooling and semi-air cooling in summer is as follows: the heat pump type water medium multistage refrigeration air conditioning system adopts water medium as an energy transmission carrier of the air conditioning system, so that the ground airspace temperature is higher than the half airspace temperature; the working medium in the shell-and-tube condenser 104 evaporates and absorbs the heat of the water medium, and the temperature of the water medium is reduced to 5-7 ℃; the water medium absorbs the heat of the air passing through the heat exchanger of the wall-mounted machine 3 at the semi-airspace of the room to become cold energy for reducing the temperature of the air in the upper semi-airspace, and the high temperature of 35 ℃ in the semi-airspace can gradually reduce to the control temperature; after the water medium in the semi-airspace absorbs heat, the temperature is increased to 17-20 ℃, and the water medium enters an on-site supply system 2 for refrigeration, namely, ground cooling; the 17-20 ℃ water medium flows to the ground water supply pipe group to absorb heat of the floor tiles and the air of the ground airspace, and the cold energy is transmitted to the floor tiles and the ground airspace in a heat conduction way to reduce the temperature of the floor tiles and the air of the ground airspace; because the temperature of the cold source water medium of the ground water supply pipe group is higher than that of the cold source water medium of the wall-mounted machine 3, the temperature of the ground air space is higher than that of the air in the half air space, the temperature of the air in the ground air space cannot reach the dew point temperature of the air in the half air space, and the ground cannot be condensed;

Under the action of the plastic package motor 303 and the cross flow fan 304, indoor hot air and part of introduced fresh air enter the wall-mounted 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 the hot air into cold air, and cool the air from the air outlet window B3010 on the panel 308 to suffocate; the cold air is forced to spread to the indoor ground, the temperature of the ground airspace is rapidly reduced, and the ground air supply system 2 naturally delays the refrigeration of heat transfer to the ground airspace, so that the dew point temperature and the dry bulb temperature of the cold air are pulled away, and the condensation of the ground is prevented.

Example 2:

referring to fig. 7, in 2 rooms, each room is installed with 1 ground supply system, 1 wall hanging machine, 1 host machine in total, 1 set of ground supply control valve connecting pipe structure and 1 set of control system, and is applicable to the suite.

Example 1 was followed.

In the foregoing description, 2 examples, which are only preferred embodiments of the present utility model, all the usual variations and substitutions within the scope of the technical solutions of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The heat pump type water medium geothermal, semi-air cooling three-supply system comprises a host, a geothermal 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 double-supply system, and comprises a main machine internal structure and a main machine shell; the main machine internal structure comprises a compressor, a reversing valve, a shell-and-tube condenser, a capillary tube, an evaporator, a working medium pipe, a water pump, a water tank, a water return valve, a sewer pipe, a middle water pipe, a water supply pipe, a water outlet valve, a fan, a refrigerating or heating working medium and an aqueous medium; the compressor, the reversing valve, the shell-and-tube condenser, the capillary tube and the evaporator are connected with each other through working medium pipes to form a refrigeration working medium circulation loop or a heating working medium circulation loop; the operation of the host machine comprises a refrigeration mode or a heating mode, wherein in the heating mode, heating working medium flows in the anticlockwise direction, namely along the direction of the compressor, the reversing valve, the shell-and-tube condenser, the capillary tube and the evaporator, and returns to the direction of the compressor; in the refrigeration mode, conversely, the refrigeration working medium flows in a clockwise direction; 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 the inlet of the water pump through a sewer pipe, the 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 a water supply pipe;

The floor supply system comprises a heat insulation partition board, a cold and hot water pipe, a water inlet pipe of the floor supply system, a water outlet pipe of the floor supply system, poured cement, PVC floor paste and floor bricks, wherein the heat insulation partition board, the poured cement, the PVC floor paste and the floor bricks are paved on the floor of a room in sequence from bottom to top; the cold and hot water pipes are arranged in groups and are uniformly buried 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 of each pipe group is distributed by a water separator, and backwater of each pipe group is collected by a water collector and then flows back to the water tank; the diameter of the cold and hot water pipe is 16-24mm, and the paving interval 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 water medium flowing in the cold and hot water pipe is cold and hot water with the temperature of 20-60 ℃, and the temperature difference exceeds that of a single geothermal water pipe, and the cold and hot water pipe is characterized in that:

the heat pump type water medium geothermal, geothermal and semi-air cooling three-supply system further comprises a wall-mounted machine and a ground supply control valve connecting pipe structure, wherein the wall-mounted machine comprises a wall-mounted machine inner structure and a wall-mounted machine shell, and the wall-mounted machine inner structure is arranged in the wall-mounted 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, and provides a low-temperature water flow cold source for the wall-mounted machine, so that the room can be heated in winter and cooled in summer; the wall-mounted machine 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 or more than 1 room, each room is provided with 1 wall-mounted machine, 1 ground supply system, 1 host machine, 1 ground supply control valve connecting pipe structure and 1 control system;

The wall-mounted machine comprises a volute, a plastic package motor, a cross flow fan, a fresh air valve, a finned tube heat exchanger and a filter, wherein the inner structure of the wall-mounted 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 scroll is arranged at the lower part of the wall-mounted machine shell, the plastic package motor and the cross flow fan are arranged in the scroll, and the plastic package motor is rotationally connected with the cross 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 fin tube heat exchanger through the filter to become cold air, and the cold air is discharged by the cross flow fan;

the ground supply control valve connecting pipe structure comprises a water inlet pipe, a split tee, a short circuit valve, a confluence tee, a through-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 which are connected in parallel; one end of each ground water supply pipe group is connected with the water separator, the other end of each ground water supply pipe group is connected with the water collector, the water collector is connected with the outlet of the water outlet pipe of the ground supply system, and the outlet of the water outlet pipe of the ground supply system is connected with the water return valve of the host; when the short-circuit valve is connected, the hot water from the shell-and-tube condenser is directly supplied to the ground supply system; the outlet end of the water inlet pipe is connected with the inlet of the shunt tee; the left side pipe of the shunt tee is connected with the upper measuring pipe of the confluence tee through a short-circuit valve, the outlet of the other side of the shunt tee is connected with the water inlet pipe of the wall mounted machine through a through-mounted machine valve, the water outlet pipe of the wall mounted machine is connected with the inlet of the other side of the confluence tee, and the outlet of the confluence tee is connected with the inlet of the water inlet pipe of the ground supply system through a ground supply water inlet valve;

The system 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 the water medium carrier end ground supply system single heat supply and the wall hanging machine plus ground supply system double cold supply; the control mode of the water medium secondary three-supply system is performed by a host machine, a wall mounted machine, a ground supply control valve connecting pipe structure, a ground supply system and a control system; in summer, the host air conditioner system is in a refrigerating mode, and a compressor and a water pump are started through the control system;

when in refrigeration 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 flows in the same direction with the working medium.

2. The heat pump type water medium geothermal, semi-air-cooled three-supply system according to claim 1, wherein: the compressor comprises an interface A and an interface B, and the reversing valve comprises an interface C, an interface D, an interface E and an interface 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 pipes to form a heating working medium circulation loop flowing in a counterclockwise 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 working medium pipes to form a refrigerating working medium circulation loop flowing in a clockwise direction; the refrigerating and heating working medium in the refrigerating or heating working medium circulation loop is working medium R410A.

3. The heat pump type water medium geothermal, semi-air-cooled three-supply system according to claim 1, wherein: 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.

4. The heat pump type water medium geothermal, semi-air-cooled 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 sheet; the cold and hot water pipe is a PE-RE steel-plastic composite pipe for cold and hot use or an aluminum-plastic composite pipe, the diameter of the cold and hot water pipe is 20mm, and the paving interval of the cold and hot water pipe 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 bricks are marble, floor tiles or composite floors, and the thickness of the floor bricks is 20mm; the water pipe groups are fixedly installed by using staples, buckles and the like, and cement should be poured between the water pipes of the water pipe groups and the space between the water pipes and the surrounding basement; the water pipe group can bear expansion and contraction deformation of cold water and hot water at 20-60 ℃, and the outer surface of the water pipe is in contact sealing fixation with cement under the condition of sealing cement pouring fixation;

5. The heat pump type water medium geothermal, semi-air-cooled three-supply system according to claim 1, wherein: 1 host, 1 wall-mounted machine, 1 set of ground supply control valve connecting pipe structure, 1 set of ground supply system and 1 set of control system are installed in 1 room, and the system is suitable for a single room; the wall-mounted 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 comprises a common purifying filter, an electrostatic air purifier or a negative ion air purifier.

6. The heat pump type water medium geothermal, semi-air-cooled three-supply system according to claim 1, wherein: in 2 rooms, 1 ground supply system, 1 hanging machine are installed respectively in every room, 1 host computer altogether, and 1 set of ground supply control valve connecting tube structure and 1 set of control system are applicable to the interplant.

7. The heat pump type water medium geothermal, semi-air-cooled three-supply system according to claim 1, wherein: the operation mode of the heat pump type water medium geothermal, semi-air cooling three-supply system also comprises 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 cross flow fan of the wall mounted machine are opened, so that fresh air can be supplied to the room, and the indoor circulating air can be treated; the system provides an adjustable fresh air quantity, which can be adjusted according to the indoor personnel and the oxygen supply load, and the fresh air load of the personnel is 1 person 30m ³ /h; the filter is a common air purifier, an electrostatic air purifier or a negative ion air purifier.

8. The heat pump type water medium geothermal, semi-air-cooled three-supply system according to claim 1, wherein: the operation mode of the heat pump type water medium geothermal, geothermal and semi-air cooling three-supply system also comprises a winter geothermal direct air heating system control mode, wherein the winter geothermal direct air heating system control mode is carried out by a host, a geothermal control valve connecting pipe structure, a geothermal system and a control system; the host air conditioner system is started to be heated in winter, and a compressor and a water pump are started through a control system;

When the working medium circulation loop for heating is adopted in winter, the working medium R410A works in the host internal circulation system.

9. The heat pump type water medium geothermal, semi-air-cooled three-supply system according to claim 1, wherein: the wall hanging machine is fixedly arranged in the middle of the wall body; when in refrigeration in summer, normal temperature water in the water tank is cooled to be 5-7 ℃ cold water through the shell-and-tube condenser, the cold water is firstly sent to the wall hanging machine through the through hanging machine valve, and after the wall hanging machine absorbs heat and heats up, the cold water is changed to be 12-15 ℃ cold water, and then is sent to the ground supply system to be changed to normal temperature water;

when in refrigeration in summer, the reversing valve is opened, and the host working medium internal circulation system reverses and changes to operate clockwise.

10. The heat pump type water medium geothermal, semi-air-cooled 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 split tee, the short-circuit valve, the converging tee, the through-hanging machine valve and the ground water supply valve are all electrically connected with the PLC controller.