CN212644817U - Capillary network combined system combining solar energy and geothermal energy - Google Patents

Abstract

The utility model discloses a combine solar energy and geothermal energy's capillary network combined system relates to new forms of energy application technical field. The system utilizes underground shallow soil to carry out closed heat exchange with the soil through the ground source heat pump and the solar heat collecting pipe, and then carries out heat exchange with solar energy through circulating water, thereby providing cold and heat sources indoors. An indoor temperature and humidity adjusting and hot water supplying combined supply system is formed by a ground source heat pump, a solar heat collecting pipe, a first water dividing collector, a second water dividing collector, a capillary network, a fresh air unit and a water storage tank. Utilize geothermal energy and solar energy, have advantages such as environmental protection, energy-conservation when building comfortable building living environment, utilize geothermal energy and solar energy simultaneously, can improve renewable energy's energy utilization rate for the system operation is stable, and long service life is applicable to building energy-conservation.

Description

Capillary network combined system combining solar energy and geothermal energy

Technical Field

The utility model relates to a new forms of energy application technical field especially relates to a combine capillary net combined system of solar energy and geothermal energy.

Background

Energy is an important basis for human survival and development, energy shortage is an important factor restricting economic development at present, and with the development of economy and the continuous improvement of living standard, people pursue comfortable building living environment, such as heating in winter, refrigerating in summer, hot water supply and the like, to improve the basic requirements of life quality.

However, while a comfortable building living environment is created, the supply of energy sources cannot be kept, and particularly, the applied energy sources mainly comprise non-renewable energy sources such as coal and natural gas, and the energy sources have low energy utilization efficiency and discharge harmful substances in the using process, so that the environment protection is not facilitated.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention has been made to provide a combined solar and geothermal energy capillary network system that overcomes or at least partially solves the above mentioned problems.

The utility model provides a capillary network combined system combining solar energy and geothermal energy, which comprises a ground source heat pump, a first water dividing collector, a solar heat collecting pipe, a second water dividing collector, a capillary network, a fresh air unit and a water storage tank;

the first water outlet of the ground source heat pump is communicated with the water inlet of the first water collecting sub-collector, the water outlet of the first water collecting sub-collector is communicated with the water inlet of the solar heat collecting pipe, and the first water inlet of the ground source heat pump is communicated with the water outlet of the solar heat collecting pipe;

the water inlet of the second water sub-collector is communicated with the second water outlet of the ground source heat pump, the water outlet of the second water sub-collector is communicated with the second water inlet of the ground source heat pump, and the second water sub-collector is communicated with the capillary network to perform indoor and outdoor heat exchange;

the water inlet of the fresh air handling unit is communicated with the second water outlet, and the water outlet of the fresh air handling unit is communicated with the second water inlet so as to adjust the indoor humidity;

the water inlet of the water storage tank is communicated with the second water outlet, and the water outlet of the water storage tank is communicated with the second water inlet so as to provide hot water indoors.

Optionally, the system is further provided with a water replenishing pump, and a water outlet of the water replenishing pump is communicated with the second water inlet so as to replenish water to the system.

Optionally, a water inlet of the water replenishing pump is connected with a filter, and the mesh number of the filter is 80.

Optionally, the second water outlet is provided with a first valve, two ends of the first valve are connected in parallel with a buffer water tank, and two ends of the buffer water tank are respectively provided with a second valve to control the on-off of water flow passing through the buffer water tank.

Optionally, the capillary network comprises a header and a branch pipe connected with the header, and a fixing component is arranged on the branch pipe;

the fixing assembly comprises a connecting piece and a plurality of clamping piece groups, the connecting piece comprises a first end face, the clamping piece groups are fixed on the first end face at equal intervals, the clamping piece groups comprise four positioning clamping pieces, and the four positioning clamping pieces are arranged in a rectangular shape to clamp the branch pipe;

the fixing assembly further comprises a plurality of cushion blocks, a plurality of limiting grooves are formed in the first end face at equal intervals, the cross sections of the limiting grooves are isosceles trapezoids, limiting blocks are arranged on the cushion blocks and are connected with the limiting grooves in an inserting mode to fix the cushion blocks, and the thickness of the cushion blocks is 5-10mm larger than the diameter of the branch pipe.

Optionally, the connecting piece includes a first plastic strip and a second plastic strip, the first plastic strip and the second plastic strip are parallel to each other and connected through the cushion block, and the cushion block is perpendicular to the first plastic strip;

two positioning clamping pieces in each clamping piece group are fixed on the first plastic strip, and the other two positioning clamping pieces are fixed on the second plastic strip.

Optionally, the first plastic strip and the second plastic strip are respectively provided with a plurality of through holes, the cross section of each through hole is triangular, and the cross section formed by two adjacent through holes is parallelogram.

Optionally, the width of the rectangle formed by the four positioning clamps is consistent with the width of the branch pipe.

Alternatively, a plurality of the card groups are fixed at equal intervals in units of the width of the branch pipe.

Compared with the prior art, the utility model discloses a ground source heat pump and solar energy collection pipe utilize secret shallow soil, carry out the closed heat exchange through circulating water and soil, the heat exchange of rethread circulating water and solar energy to provide cold and hot sources indoor. An indoor temperature and humidity adjusting and hot water supplying combined supply system is formed by a ground source heat pump, a solar heat collecting pipe, a first water dividing collector, a second water dividing collector, a capillary network, a fresh air unit and a water storage tank. Utilize geothermal energy and solar energy, have advantages such as environmental protection, energy-conservation when building comfortable building living environment, utilize geothermal energy and solar energy simultaneously, can improve renewable energy's energy utilization rate for the system operation is stable, and long service life is applicable to building energy-conservation.

The above description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented according to the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more obvious and understandable, the following detailed description of the present invention is given.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings.

In the drawings:

fig. 1 is a schematic structural diagram of a capillary network combination system combining solar energy and geothermal energy according to an embodiment of the present invention;

FIG. 2 is an enlarged view of the structure at A in FIG. 1;

fig. 3 is a schematic structural diagram of a fixing assembly connected to a branch pipe according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a cushion block provided in an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a connecting member according to an embodiment of the present invention.

Reference numerals: 1. a ground source heat pump; 2. a first water diversion collector; 3. a second sub-collector; 4. a capillary network; 5. a fresh air handling unit; 6. a water storage tank; 7. a water replenishing pump; 8. a filter; 9. a solar heat collecting pipe; 10. a first valve; 11. a buffer water tank; 12. a second valve; 13. a connecting member; 1301. a first plastic strip; 1302. a second plastic strip; 14. positioning the clamping piece; 15. cushion blocks; 16. a limiting groove; 17. A limiting block; 18. a through hole; 19. and (4) branch pipes.

Detailed Description

Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

Referring to fig. 1-5, the embodiment of the present invention provides a capillary network combined system combining solar energy and geothermal energy, the system includes a ground source heat pump 1, a first water collector 2, a solar heat collecting tube 9, a second water collector 3, a capillary network 4, a fresh air unit 5 and a water storage tank 6.

The first water outlet of the ground source heat pump 1 is communicated with the water inlet of the first water collector 2, the water outlet of the first water collector 2 is communicated with the water inlet of the solar heat collecting tube 9, and the first water inlet of the ground source heat pump 1 is communicated with the water outlet of the solar heat collecting tube 9.

The water inlet of the second water collecting sub-device 3 is communicated with the second water outlet of the ground source heat pump 1, the water outlet of the second water collecting sub-device 3 is communicated with the second water inlet of the ground source heat pump 1, wherein the second water collecting sub-device 3 is communicated with the capillary network 4 to perform indoor and outdoor heat exchange.

The water inlet and the second water outlet of new fan unit 5 communicate, the delivery port and the second water inlet of new fan unit 5 communicate to adjust indoor humidity.

The water inlet of the water storage tank 6 is communicated with the second water outlet, and the water outlet of the water storage tank 6 is communicated with the second water inlet so as to provide hot water indoors.

Referring to fig. 1, specifically, the system includes a ground source heat pump 1, a solar heat collecting pipe 9, a first water distribution collector 2, a second water distribution collector 3, a capillary network 4, a fresh air handling unit 5 and a water storage tank 6. The ground source heat pump 1 comprises a first water inlet, a first water outlet, a second water inlet and a second water outlet. The first water outlet is communicated with the water inlet of the first water collecting sub-collector 2, the water outlet of the first water collecting sub-collector 2 is communicated with the water inlet of the solar heat collecting tube 9, and the first water inlet is communicated with the water outlet of the solar heat collecting tube 9. When heating, the water flow after heat exchange with the geothermal energy is guided into the solar heat collecting pipe 9, and the energy consumption of the ground source heat pump 1 for providing cold and heat sources indoors is reduced through the secondary heat exchange between the solar energy and the water flow, so that the effects of energy saving and environmental protection are optimized, the second water outlet is used as the cold and heat source output end of the ground source heat pump 1, and when refrigerating, the water flow between the water inlet and the water outlet of the solar heat collecting pipe 9 and the ground source heat pump 1 can be cut off.

The water dividing and collecting device comprises a water divider and a water collecting device, wherein the water divider divides one path of inlet water into a plurality of paths of inlet water to be output, the water collecting device integrates the plurality of paths of inlet water into one path of inlet water to be output, the water inlet end of the water divider is used as the water inlet of the water dividing and collecting device, and the output end of the water collecting device is used as the water outlet of the water dividing and collecting device. The first water collector is used for being communicated with a water circulation pipeline embedded below the first water collector, and the water circulation pipeline can be arranged in a multipath mode and is used for increasing the contact area of the first water collector and the geothermal energy medium. The second water distributing and collecting device 3 is communicated with the capillary network 4, wherein the capillary network 4 can be uniformly laid on the wall surface, the ground and the ceiling, the water inlet of the second water distributing and collecting device 3 is communicated with the second water outlet of the ground source heat pump 1, the water outlet of the second water distributing and collecting device 3 is communicated with the second water inlet of the ground source heat pump 1, circulating water in the system can flow in a plurality of loops of the capillary network 4 in a dispersing mode through the second water distributing and collecting device 3, and therefore radiation heat transfer is conducted indoors, and comfort of indoor living environment is improved.

The fresh air unit 5 is an air conditioning device for providing fresh air, the water inlet and the second water outlet of the fresh air unit 5 are communicated, and the water outlet and the second water inlet of the fresh air unit 5 are communicated, so that fresh air can be extracted outdoors through circulating water and then conveyed indoors after being subjected to dust removal, dehumidification (or humidification), cooling (or heating) and the like, and the original indoor air is replaced, so that the indoor humidity can be adjusted. Promoting the improvement of the comfort of the living environment.

The water inlet and the second delivery port of storage water tank 6 communicate, and the delivery port and the second water inlet of storage water tank 6 communicate, and the accessible is at indoor installation hot water pipeline, with storage water tank 6 and each tap intercommunication to can provide hot water deposit to indoor. In the case of refrigeration in summer, the water circulation path between the water storage tank 6 and the ground source heat pump 1 can be closed through a valve.

In summary, the ground source heat pump 1 and the solar heat collecting pipe 9 utilize the underground shallow soil, and the circulating water and the soil perform closed heat exchange, and then the circulating water and the solar heat exchange are performed, so as to provide cold and heat sources indoors. An indoor temperature and humidity regulation and hot water supply combined supply system is formed by a ground source heat pump 1, a solar heat collecting pipe 9, a first water dividing collector 2, a second water dividing collector 3, a capillary network 4, a fresh air unit 5 and a water storage tank 6. Utilize geothermal energy and solar energy, have advantages such as environmental protection, energy-conservation when building comfortable building living environment, utilize geothermal energy and solar energy simultaneously, can improve renewable energy's energy utilization rate for the system operation is stable, and long service life is applicable to building energy-conservation.

Referring to fig. 1 and 2, in an alternative embodiment, the system is further provided with a water replenishing pump 7, and a water outlet of the water replenishing pump 7 is communicated with a second water inlet to replenish water to the system.

Particularly, the system further comprises a water replenishing pump 7, a water outlet of the water replenishing pump 7 is communicated with the second water inlet, and a water inlet of the water replenishing pump 7 can be connected with a tap water pipe and used for extracting tap water as circulating water and filling a replenishing water quantity into the second water inlet, so that the water of the circulation loss of the system can be timely replenished.

Referring to fig. 1 and 2, in an alternative embodiment, a filter 8 is connected to a water inlet of the water replenishing pump 7, and the number of meshes of the filter 8 is 80.

Particularly, can be at filter 8 of moisturizing pump 7's water inlet installation, filter 8's water inlet with can with the water pipe intercommunication, take out the running water and filter through filter 8 in this system, can prevent during impurity gets into the system, improve equipment's life. The mesh number of the filter 8 is 80 meshes, so that the filtering performance of the filter 8 can be optimized, and the running stability of the system is improved.

Referring to fig. 1, in an alternative embodiment, the second water outlet is provided with a first valve 10, two ends of the first valve 10 are connected in parallel with a buffer water tank 11, and two ends of the buffer water tank 11 are respectively provided with a second valve 12 to control the on/off of the water flow passing through the buffer water tank 11.

Particularly, the second delivery port can be provided with first valve 10, a buffering water pitcher 11 of connecting in parallel at the both ends of first valve 10 through the water pipe, when needs carry out the exhaust to the system, close first valve 10, let rivers go into buffering water pitcher 11 in, can set up second valve 12 respectively at the both ends of buffering water pitcher 11 simultaneously, the break-make of the rivers of second valve 12 control process buffering water pitcher 11, accomplish the exhaust back, can close second valve 12, open first valve 10, system's trouble can be avoided in the setting of buffering water pitcher 11, the system's of also being convenient for blowdown.

In the prior art, the capillary network 4 is used as a radiation end of a radiation type air conditioning system and comprises a collecting pipe and a branch pipe 19, the capillary network 4 is generally installed below a wall surface, a structural top surface and a gypsum board ceiling and then is covered by a plastering layer, and therefore the capillary network 4 is required to be tightly combined with a decoration method.

However, when the branch pipes 19 penetrate out of the ceiling space, wood blocks are generally placed in the spaces between the branch pipes 19, the wood blocks are fixed to the wall surface, then the keels are fixed to the wood blocks, and finally the gypsum boards are fixed to the keels. Due to the fact that the branch pipes 19 are damaged when the wood blocks are installed due to different sizes of the wood blocks, uneven force application or other installation factors. Moreover, because the installation area of the capillary network 4 is large, the installation of the capillary network 4 is time-consuming and labor-consuming due to the fact that wood blocks are cut manually and installed at intervals, and therefore the installation efficiency of the air conditioning system is low.

Referring to fig. 3-5, therefore, in an alternative embodiment, the capillary network 4 comprises a header and a branch 19 connected to the header, the branch 19 being provided with a fixing assembly.

Fixed subassembly includes connecting piece 13 and a plurality of fastener group, connecting piece 13 includes first terminal surface, a plurality of fastener group is in equidistant fixed on the first terminal surface, fastener group is four location fastener 14, four location fastener 14 is the rectangle setting with joint branch pipe 19.

The fixing assembly further comprises a plurality of cushion blocks 15, a plurality of limiting grooves 16 are formed in the first end face at equal intervals, the cross sections of the limiting grooves 16 are isosceles trapezoids, limiting blocks 17 are arranged on the cushion blocks 15, the limiting blocks 17 are connected with the limiting grooves 16 in an inserting mode to fix the cushion blocks 15, and the thickness of the cushion blocks 15 is 5-10mm larger than the diameter of the branch pipes 19.

Specifically, the capillary network 4 includes a header and branch tubes 19 communicating with the header. Can set up fixed subassembly on branch pipe 19, fixed subassembly includes connecting piece 13 and a plurality of fastener group, connecting piece 13 can adopt plastics to make, and the quantity of fastener group can be confirmed according to the 19 quantity of branch pipes in the capillary network 4, connecting piece 13 includes first terminal surface and the relative second terminal surface that sets up with first terminal surface, when capillary network 4 installs, connecting piece 13 accessible second terminal surface bonds with the wall and forms fixedly, a plurality of fastener group is equidistant fixed on first terminal surface, can control the distance between branch pipe 19 and the branch pipe 19, fastener group is including the location fastener 14 that the quantity is four, four location fasteners 14 are the rectangle setting and use joint branch pipe 19, the cross sectional shape of location fastener 14 can be for exceeding 1/2 the ring with joint branch pipe 19. Wherein, the clamping can mean that the positioning clamping piece 14 is deformed by stress, so that the positioning clamping piece 14 is deformed and restored to fix the branch pipe 19 after the branch pipe 19 enters the positioning clamping piece 14. The branch pipe 19 is generally U-shaped, and the four positioning clamping pieces 14 can be symmetrically clamped on the branch pipe 19, so that the stability of fixing the branch pipe 19 is improved.

Referring to fig. 3-5, in addition, a plurality of spacers 15 are fixed on the first end surface, the spacers 15 may have a rectangular parallelepiped structure, and the number of spacers 15 may be the same as the number of branch pipes 19. Spacing grooves 16 are formed in the first end face at equal intervals, and the number of the spacing grooves 16 is matched with the number of the cushion blocks 15. Wherein, the cross section of spacing groove 16 is isosceles trapezoid, and the top end is located on first terminal surface. Be provided with stopper 17 on cushion 15, the shape of the cross section of stopper 17 also is isosceles trapezoid, and with spacing groove 16 shape adaptation to stopper 17 can peg graft with spacing groove 16, makes cushion 15 be fixed in on the connecting piece 13. The cushion blocks 15 are connected with the keels, for example, the keels and the cushion blocks 15 can be fixed on the wall surface together through nails, then the gypsum boards and the keels are fixed to achieve rapid installation, the thickness of the cushion blocks 15 is limited to be 5-10mm larger than the diameter of the branch pipes 19, and a space is reserved for the capillary network 4 to be covered through a plastering layer. Because the thickness of the cushion block 15 is larger than that of the branch pipe 19, the cushion block 15 is not installed in the installation process due to the arrangement of the limiting block 17 and the limiting groove 16, so that the pressure can be applied to the branch pipe 19 conveniently by means of a tool, the quick clamping connection of the plurality of branch pipes 19 and the positioning clamping piece 14 can be realized, and the installation efficiency of the whole system is improved.

Referring to fig. 3 and 5, in an alternative embodiment, the connecting member 13 includes a first plastic strip 1301 and a second plastic strip 1302, the first plastic strip 1301 and the second plastic strip 1302 are parallel to each other and are connected by the spacer 15, and the spacer 15 is perpendicular to the first plastic strip 1301.

Two positioning clamping pieces 14 in each clamping piece group are fixed on the first plastic strip 1301, and the other two positioning clamping pieces 14 are fixed on the second plastic strip 1302.

Particularly, the connecting piece 13 comprises a first plastic strip 1301 and a second plastic strip 1302, the first plastic strip 1301 and the second plastic strip 1302 are parallel to each other and fixed through cushion blocks 15, the first plastic strip 1301 and the second plastic strip 1302 can both be of cuboid structures, the width of the two plastic strips can be the same as that of the positioning clamping piece 14, so that the processing is facilitated, the cushion blocks 15 can be arranged between the two plastic strips and are perpendicular to the two plastic strips, and the structural stability of the fixing assembly is improved. Meanwhile, in each clamping piece group, two positioning clamping pieces 14 are fixed on the first plastic strip 1301, and the other two positioning clamping pieces 14 are fixed on the second plastic strip 1302, so that the four positioning clamping pieces 14 can form the rectangular clamping branch pipe 19 under the condition of less material consumption, and the production cost is reduced.

Referring to fig. 3 and 5, in an alternative embodiment, a plurality of through holes 18 are respectively formed in the first plastic strip 1301 and the second plastic strip 1302, the cross sections of the through holes 18 are triangular, and the cross section formed by two adjacent through holes 18 is a parallelogram.

Specifically, a plurality of through holes 18 with triangular cross sections are respectively formed in the first plastic strip 1301 and the second plastic strip 1302, the material consumption of the connecting member 13 can be reduced due to the arrangement of the through holes 18, the production cost is reduced, and meanwhile, the structural stability of the connecting member 13 can be ensured due to the fact that the through holes 18 are limited to be triangular.

In an alternative embodiment, the width of the rectangle formed by the four positioning catches 14 is consistent with the width of the branch pipe 19.

Specifically, the width of the rectangle formed by the four positioning clips 14 is consistent with the width of the branch pipe 19, wherein the sides perpendicular to the branch pipe 19 are rectangular, namely, the sides are clamped in the natural state of the branch pipe 19, so that the branch pipe 19 is not deformed at all, the damage to the branch pipe 19 can be reduced, and the performance of the fixing assembly is optimized.

In an alternative embodiment, several of said sets of clips are fixed at equal intervals in units of the width of the branch pipe 19.

Particularly, a plurality of fastener group uses the width of branch pipe 19 to fix as the unit equidistant, and the distance of two adjacent location fasteners 14 in different fastener groups keeps unanimous with the width of branch pipe 19 like this, can need not consider the problem of placing of branch pipe 19 when joint branch pipe 19, can according to location fastener 14 joint branch pipe 19 in proper order, improves fixed subassembly's suitability.

The working principle is as follows: the running water is pumped by the water replenishing pump 7, the circulating water required by the system is conveyed to the second water inlet of the ground source heat pump 1, the circulating water exchanges heat with geothermal energy, the circulating water exchanges heat with solar energy for the second time by the solar heat collecting pipe 9, a cold source or a heat source is provided for the indoor by the ground source heat pump 1, and then the cold source or the heat source is conveyed to the fresh air handling unit 5, the second water dividing and collecting device 3 and the water storage tank 6 respectively. The water flows into the capillary tube through the second sub-collector 3, and the radiation heat transfer can be performed in the room. The fresh air is extracted by the fresh air blower outdoors, and is conveyed indoors after being subjected to dust removal, dehumidification (or humidification), temperature reduction (or heating) and the like, the original indoor air is replaced, and the temperature is controlled in an auxiliary manner while the indoor humidity is controlled. The water storage tank 6 can store hot water and deliver the hot water to each room in the room through pipes.

In summary, the ground source heat pump 1 and the solar heat collecting pipe 9 utilize the underground shallow soil, and the circulating water and the soil perform closed heat exchange, and then the circulating water and the solar heat exchange are performed, so as to provide cold and heat sources indoors. An indoor temperature and humidity regulation and hot water supply combined supply system is formed by a ground source heat pump 1, a solar heat collecting pipe 9, a first water dividing collector 2, a second water dividing collector 3, a capillary network 4, a fresh air unit 5 and a water storage tank 6. Utilize geothermal energy and solar energy, have advantages such as environmental protection, energy-conservation when building comfortable building living environment, utilize geothermal energy and solar energy simultaneously, can improve renewable energy's energy utilization rate for the system operation is stable, and long service life is applicable to building energy-conservation.

The embodiments in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

As is readily imaginable to the person skilled in the art: any combination of the above embodiments is possible, and thus any combination of the above embodiments is an embodiment of the present invention, but the present disclosure is not necessarily detailed herein due to space limitations.

In the description provided herein, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.

Similarly, it should be appreciated that in the foregoing description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the invention and aiding in the understanding of one or more of the various inventive aspects.

Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the claims, any of the claimed embodiments may be used in any combination.

Claims (9)

1. A capillary network combined system combining solar energy and geothermal energy is characterized by comprising a ground source heat pump (1), a first water dividing and collecting device (2), a solar heat collecting pipe (9), a second water dividing and collecting device (3), a capillary network (4), a fresh air unit (5) and a water storage tank (6);

a first water outlet of the ground source heat pump (1) is communicated with a water inlet of the first water collector divider (2), a water outlet of the first water collector divider (2) is communicated with a water inlet of the solar heat collecting tube (9), and a first water inlet of the ground source heat pump (1) is communicated with a water outlet of the solar heat collecting tube (9);

the water inlet of the second water collecting sub-device (3) is communicated with the second water outlet of the ground source heat pump (1), the water outlet of the second water collecting sub-device (3) is communicated with the second water inlet of the ground source heat pump (1), and the second water collecting sub-device (3) is communicated with the capillary pipe network (4) to perform indoor and outdoor heat exchange;

the water inlet of the fresh air handling unit (5) is communicated with the second water outlet, and the water outlet of the fresh air handling unit (5) is communicated with the second water inlet so as to adjust the indoor humidity;

the water inlet of the water storage tank (6) is communicated with the second water outlet, and the water outlet of the water storage tank (6) is communicated with the second water inlet so as to provide hot water indoors.

2. The system according to claim 1, characterized in that the system is further provided with a make-up water pump (7), and a water outlet of the make-up water pump (7) is communicated with a second water inlet to make up water for the system.

3. The system according to claim 2, characterized in that the water inlet of the water replenishing pump (7) is connected with a filter (8), and the filter (8) has a mesh size of 80 meshes.

4. The system according to claim 1, characterized in that the second water outlet is provided with a first valve (10), two ends of the first valve (10) are connected in parallel with a buffer water tank (11), and two ends of the buffer water tank (11) are respectively provided with a second valve (12) to control the on-off of the water flow passing through the buffer water tank (11).

5. The system according to claim 1, characterized in that the capillary network (4) comprises a header and branch pipes (19) connected thereto, a fixing assembly being provided on the branch pipes (19);

the fixing assembly comprises a connecting piece (13) and a plurality of clamping piece groups, the connecting piece (13) comprises a first end face, the clamping piece groups are fixed on the first end face at equal intervals, each clamping piece group comprises four positioning clamping pieces (14), and the four positioning clamping pieces (14) are arranged in a rectangular shape to clamp the branch pipes (19);

the fixing assembly further comprises a plurality of cushion blocks (15), a plurality of limiting grooves (16) are formed in the first end face at equal intervals, the cross section of each limiting groove (16) is isosceles trapezoid, limiting blocks (17) are arranged on the cushion blocks (15), the limiting blocks (17) are connected with the limiting grooves (16) in an inserting mode to fix the cushion blocks (15), and the thickness of each cushion block (15) is 5-10mm larger than the diameter of each branch pipe (19).

6. The system according to claim 5, characterized in that the connecting element (13) comprises a first plastic strip (1301) and a second plastic strip (1302), the first plastic strip (1301) and the second plastic strip (1302) being parallel to each other and connected by the spacer (15), the spacer (15) being arranged perpendicular to the first plastic strip (1301);

two positioning clamping pieces (14) in each clamping piece group are fixed on the first plastic strip (1301), and the other two positioning clamping pieces (14) are fixed on the second plastic strip (1302).

7. The system according to claim 6, wherein the first plastic strip (1301) and the second plastic strip (1302) are respectively provided with a plurality of through holes (18), the cross section of each through hole (18) is triangular, and the cross section formed by two adjacent through holes (18) is parallelogram.

8. System according to claim 5, characterized in that the width of the rectangle formed by the four positioning catches (14) is identical to the width of the branch (19).

9. System according to claim 5, characterized in that several of said card groups are fixed at equal intervals in units of the width of the branch pipe (19).

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