Multifunctional learning platform of air source heat pump
By designing a multi-function learning platform for air source heat pumps, the problems of single and high cost of existing HVAC equipment are solved, and the system multi-function demonstration and fault simulation are realized, students' skill level and fault judgment ability are improved, and equipment costs are reduced. , avoid the use of expansion tanks.
Patent Information
- Application Number
- CN202420982129.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-08
- Publication Date
- 2025-01-10
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The existing HVAC experimental training equipment has a single function and a lagging technology, which cannot meet the installation, debugging and performance test of air energy, floor heating, floor cooling, air tray, pipeline, electrical, hot water and other equipment, fault demonstration and troubleshooting The training needs of other projects, and the cost of air source heat pump equipment is relatively high, and expansion tanks are needed to be installed for pressure stabilization.
A multi-functional learning platform for air source heat pumps is designed, including air source heat pump host, water tank and user load circuit. Through a variety of valves, ball valves, filters, temperature gauge, pressure gauge and other devices, the primary system and secondary system operation are simulated. , demonstrates floor heating and floor cooling systems, fan coil cooling and heating, and simulates summer radiation cooling and floor temperature adjustment, fan coil dehumidification, and has fault simulation functions, which facilitates students to master the working principles of the system and fault judgment ability.
Achieve multi-function demonstration and fault simulation of the air source heat pump system, improve students' hands-on ability and skill level, meet the technical needs of the job, reduce equipment costs, avoid the use of expansion tanks, and provide intuitive system operation. Parameter observation and fault judgment training.
Smart Images
Figure CN222337788U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of teaching equipment, in particular to an air source heat pump multifunctional learning platform. Background Art
[0002] As people's living standards improve, the requirements for indoor environment are getting higher and higher. Ordinary air conditioners can no longer meet the living requirements of ordinary people. People need a living environment that is not cold in winter and not hot in summer. This requires a large number of high-level HVAC practitioners. During the teaching process, it was found that the existing HVAC experimental training equipment has a single function, backward technology, and is not comprehensive. It cannot meet students' training on the installation and commissioning of air energy, floor heating, floor cooling, fan coils, pipelines, electrical, hot water and other equipment, performance testing, fault demonstration and troubleshooting, etc., and the existing air source heat pump primary system and secondary system need to install expansion tanks for voltage stabilization, and the equipment cost is relatively high. Based on the problems existing in the prior art, the inventor has developed a multifunctional learning platform for air source heat pumps. Utility Model Content
[0003] 1. Technical problems to be solved:
[0004] In view of the above technical problems, the utility model provides a multifunctional learning platform for air source heat pumps.
[0005] 2. Technical solution:
[0006] A multifunctional learning platform for air source heat pumps, comprising an air source heat pump host, a water tank and a user load circuit, wherein an opening is provided on the top of the water tank, a hollow exhaust rod is installed on the opening, three connected branch pipes are provided on the top of the hollow exhaust rod, a water tank pressure gauge, a safety valve and a water tank exhaust valve are installed on the three branch pipes respectively, an upper left water inlet, a lower left water inlet, an upper right water inlet and a lower right water inlet are provided on the water tank, when the air source heat pump host, the water tank and the user load circuit are connected to form a primary system, the host water outlet of the air source heat pump host is connected to the water inlet end of the user load circuit through the first water inlet main pipe, and the user load The water outlet of the loop is connected to the upper right water inlet of the water tank through the first water outlet main pipe, and the lower left water inlet of the water tank is connected to the host water inlet of the air source heat pump host through the first connecting pipe; when the air source heat pump host, the water tank and the user load loop are connected into a secondary system, the host water outlet of the air source heat pump host is connected to the upper left water inlet of the water tank through the water inlet branch pipe, the upper right water inlet of the water tank is connected to the water inlet end of the load loop through the second water inlet main pipe, the water outlet of the load loop is connected to the lower right water inlet of the water tank through the second water outlet main pipe, and the lower left water inlet of the water tank is connected to the host water inlet of the air source heat pump host through the second connecting pipe.
[0007] Furthermore, the user load circuit includes a first three-way valve, a fan coil, a radiator and a floor heating coil, the first interface of the first three-way valve serves as the water inlet end of the user load circuit, the second interface of the first three-way valve is connected to the water inlet of the fan coil through a first branch pipe, and the water outlet of the fan coil is connected to the first water outlet main pipe or the second water outlet main pipe through a second branch pipe; the third interface of the first three-way valve is connected to the first interface of the second three-way valve, the second interface of the second three-way valve is connected to the water inlets of multiple radiators arranged in parallel, the water outlet of the radiator is connected to the first interface of the third three-way valve, and the second interface of the third three-way valve is connected to the first water outlet main pipe or the second water outlet main pipe; the third interface of the second three-way valve is connected to the water inlet of the manifold, the water outlet of the manifold is connected to the floor heating coil, and the water outlet of the manifold is connected to the third interface of the third three-way valve.
[0008] Furthermore, the first branch pipe is installed with a load water inlet exhaust valve, a first ball valve, a first filter and a first soft connection, and the second branch pipe is installed with a load water outlet exhaust valve, a second ball valve, a first electric valve and a second soft connection.
[0009] Furthermore, radiator ball valves are provided on the water inlet and the water outlet of the radiator.
[0010] Furthermore, a third ball valve is provided on the water inlet and the water outlet of the manifold.
[0011] Furthermore, along the direction of the air source heat pump main unit to the user load loop, the first water inlet main pipe or the water inlet branch pipe are sequentially installed with a fourth ball valve, a first flexible joint, a third soft connection, a first thermometer, a first pressure gauge, a first non-return valve, a first water flow switch, a fifth ball valve and a first flow meter; the first water inlet main pipe is also provided with a first pipe heater, the first pipe heater is connected to the first flow meter, and a second flexible joint is installed between the first pipe heater and the first three-way valve; a sixth ball valve is installed on the upper left water inlet, the lower left water inlet, the upper right water inlet and the lower right water inlet of the water tank; the water inlet branch pipe is also provided with a third flexible joint, the third flexible joint is connected to the flow meter and the sixth ball valve at the upper left water inlet of the water tank.
[0012] Furthermore, along the direction of the water tank to the user load loop, the second water inlet main pipe is sequentially installed with a seventh ball valve, a fourth joint, a second filter, a fourth soft connection, a shielded pump, a fifth soft connection, a second thermometer, a second pressure gauge, a second one-way valve, a second pipe heater, a fourth joint and a second flow meter, and a pressure differential bypass valve is also installed between the second water inlet main pipe and the second water outlet main pipe.
[0013] Furthermore, an eighth ball valve, a fifth flexible joint and a third filter are installed on the first water outlet main pipe and the second water outlet main pipe, and a third temperature gauge and a third pressure gauge are also installed on the second water outlet main pipe.
[0014] Furthermore, along the direction from the air source heat pump main unit to the water tank, the first connecting pipe and the second connecting pipe are respectively installed with a ninth ball valve, a sixth joint, a sixth flexible connection, a fourth temperature gauge, a fourth pressure gauge, a fourth filter and a seventh joint.
[0015] Furthermore, a water supply port is provided at the bottom of the water tank, and a water supply ball valve is installed on the water supply port, the water supply ball valve is connected to the eighth joint, the eighth joint is connected to the ninth joint, and a tenth ball valve is provided on the pipeline between the eighth joint and the ninth joint, the ninth joint is connected to the second electric valve, the second electric valve is connected to the gate valve in parallel, the second electric valve is connected to the fifth filter, the fifth filter is connected to the third one-way valve, the third one-way valve is connected to the fifth pressure gauge, the fifth pressure gauge is connected to the tenth joint, the tenth joint is connected to the eleventh ball valve, and the eleventh ball valve is connected to the water supply pipeline.
[0016] Furthermore, the air source heat pump main unit is provided with a refrigerant low-pressure meter and a refrigerant high-pressure meter.
[0017] Furthermore, a twelfth ball valve is installed on the hollow exhaust rod.
[0018] 3. Beneficial effects:
[0019] This utility model air source heat pump multifunctional learning platform can demonstrate the operation of floor heating and floor cooling systems, fan coil cooling and heating, summer radiation cooling floor temperature control, fan coil dehumidification, and can also simulate the operation of primary and secondary systems, so that students can intuitively see the system's operating parameters and grasp the working principle, which helps students grasp the working principle of the system. It can also simulate common faults of water, fluorine and electrical circuits to cultivate students' ability to judge system faults. This test bench can also be used as a training bench, and can install and debug the floor heating, fan coil, water tank and the like of the air source heat pump host, improve students' skill level and meet the technical requirements of the position. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 This is a connection diagram of a primary system simulated by the utility model air source heat pump multifunctional learning platform;
[0021] Figure 2 This is a connection diagram of the secondary system simulated by the utility model air source heat pump multifunctional learning platform. DETAILED DESCRIPTION
[0022] The utility model is described in detail below in conjunction with the accompanying drawings.
[0023] Embodiment 1:
[0024] Primary system:
[0025] like Figure 1A multifunctional learning platform for air source heat pumps comprises an air source heat pump host 1, a water tank 23 and a user load loop, the top of the water tank 23 is provided with an opening 24, a hollow exhaust rod 21 is installed on the opening 24, three connected branch pipes are arranged on the top of the hollow exhaust rod 21, a water tank pressure gauge 32, a safety valve 12 and a water tank exhaust valve 13 are installed on the three branch pipes, an upper left water inlet 28, a lower left water inlet 30, an upper right water inlet 29 and a lower right water inlet 31 are arranged on the water tank 23, when the air source heat pump host 1, the water tank 23 and the user load loop are connected into a primary system, the host water outlet 26 of the air source heat pump host 1 is connected to the water inlet end of the user load loop through the first water inlet main pipe, the water outlet end of the user load loop is connected to the upper right water inlet 29 of the water tank 23 through the first water outlet main pipe, and the lower left water inlet 30 of the water tank 23 is connected to the host water inlet 27 of the air source heat pump host 1 through the first connecting pipe. When the system is replenished with water, the water tank exhaust valve 13 is opened, and the gas inside the water tank 23 is automatically discharged through the hollow exhaust rod 21 and the water tank exhaust valve 13; when the water tank exhaust valve 13 is closed, when the system temperature rises and the water volume expands, the gas in the upper space of the water tank 23 is compressed to absorb the expanded volume of the water. When the system temperature drops, the water volume shrinks, the gas expands, and the reduced volume of the water is replenished, thereby eliminating the expansion tank of the system. The safety valve 12 exhausts when the preset pressure is reached to prevent abnormal conditions. The water tank pressure gauge 32 displays the pressure status inside the water tank.
[0026] The user load circuit includes a first three-way valve 33, a fan coil 17, a radiator 18 and a floor heating coil 20. The first interface of the first three-way valve 33 serves as the water inlet end of the user load circuit. The second interface of the first three-way valve 33 is connected to the water inlet of the fan coil 17 through a first branch pipe, and the water outlet of the fan coil 17 is connected to the first water outlet main pipe through a second branch pipe; the third interface of the first three-way valve 33 is connected to the first interface of the second three-way valve 34, the second interface of the second three-way valve 34 is connected to the water inlets of multiple radiators 18 arranged in parallel, the water outlet of the radiator 18 is connected to the first interface of the third three-way valve 35, and the second interface of the third three-way valve 35 is connected to the first water outlet main pipe; the third interface of the second three-way valve 34 is connected to the water inlet of the manifold 19, the water outlet of the manifold 19 is connected to the floor heating coil 20, and the water outlet of the manifold 19 is connected to the third interface of the third three-way valve 35. It is equipped with multiple three-way valves, which can independently demonstrate the operation of floor heating and floor cooling systems, fan coil cooling and heating, and can also demonstrate summer radiation cooling floor temperature control, fan coil humidity control and other tests.
[0027] The first branch pipe is equipped with a load water inlet exhaust valve 36, a first ball valve 37, a first filter 38 and a first flexible connection 39, and the second branch pipe is equipped with a load water outlet exhaust valve 40, a second ball valve 41, a first electric valve 42 and a second flexible connection 43. The water inlet and outlet of the radiator 18 are both provided with a radiator ball valve 44. The water inlet and outlet of the manifold 19 are both provided with a third ball valve 45.
[0028] Along the direction of the air source heat pump main unit 1 to the user load loop, the first water inlet main pipe is successively installed with a fourth ball valve 46, a first flexible joint 47, a third soft connection 48, a first thermometer 49, a first pressure gauge 50, a first non-return valve 10, a first water flow switch 22, a fifth ball valve 51 and a first flow meter 11; the first water inlet main pipe is also provided with a first pipe heater 16, the first pipe heater 16 is connected to the first flow meter 11, and a second flexible joint 52 is installed between the first pipe heater 16 and the first three-way valve 33; the sixth ball valve 53 is installed on the upper left water inlet 28, the lower left water inlet 30, the upper right water inlet 29 and the lower right water inlet 31 of the water tank 23.
[0029] An eighth ball valve 54 , a fifth flexible joint 55 and a third filter 56 are installed on the first water outlet main pipe.
[0030] Along the direction from the air source heat pump main unit 1 to the water tank 23, the first connecting pipe is sequentially installed with a ninth ball valve 4, a sixth flexible joint 5, a sixth soft connection 6, a fourth thermometer 7, a fourth pressure gauge 8, a fourth filter 9 and a seventh flexible joint 57.
[0031] The entire primary system is equipped with multiple joints, ball valves, soft connections and various parameter detection devices. The use of joints and soft connections can be easily disassembled and assembled, which is convenient for students to install and debug by themselves, improve their hands-on ability and deepen their understanding of the system. There are multiple ball valves that can control the on and off, and set faults for students to check the causes of line faults. Students analyze and solve problems based on the fault phenomena, and cultivate students' ability to judge system faults. Various parameter detection devices can intuitively see the operating parameters of the system and master the working principles.
[0032] A water supply port 25 is also provided at the bottom of the water tank 23, and a water supply ball valve 58 is installed on the water supply port 25. The water supply ball valve 58 is connected to the eighth joint 59, the eighth joint 59 is connected to the ninth joint 60, and a tenth ball valve 61 is provided on the pipeline between the eighth joint 59 and the ninth joint 60. The ninth joint 60 is connected to the second electric valve 15, the second electric valve 15 is connected to the gate valve 14 in parallel, the second electric valve 15 is connected to the fifth filter 62, the fifth filter 62 is connected to the third one-way valve 63, the third one-way valve 63 is connected to the fifth pressure gauge 64, the fifth pressure gauge 64 is connected to the tenth joint 65, the tenth joint 65 is connected to the eleventh ball valve 66, and the eleventh ball valve 66 is connected to the water supply pipeline.
[0033] In addition, the air source heat pump host 1 is provided with a refrigerant low pressure meter 3 and a refrigerant high pressure meter 2. A twelfth ball valve 67 is also installed on the hollow exhaust rod 21.
[0034] Embodiment 2:
[0035] Secondary system:
[0036] like Figure 2 A multifunctional learning platform for air source heat pumps includes an air source heat pump host 1, a water tank 25 and a user load circuit. An opening 28 is provided on the top of the water tank 25, and a hollow exhaust rod 22 is installed on the opening 28. Three connected branch pipes are provided on the top of the hollow exhaust rod 22. A water tank pressure gauge 34, a safety valve 12 and a water tank exhaust valve 13 are installed on the three branch pipes respectively. The water tank 25 is provided with an upper left water inlet 29, a lower left water inlet 31, an upper right water inlet 30 and a lower right water inlet 32. Air source heat pump When the host 1, the water tank 25 and the user load circuit are connected into a secondary system, the host water outlet 26 of the air source heat pump host 1 is connected to the upper left water inlet 29 of the water tank 25 through the water inlet branch pipe, the upper right water inlet 30 of the water tank 25 is connected to the water inlet end of the user load circuit through the second water inlet main pipe, the water outlet end of the user load circuit is connected to the lower right water inlet 32 of the water tank 25 through the second water outlet main pipe, and the lower left water inlet 31 of the water tank 25 is connected to the host water inlet 27 of the air source heat pump host 1 through the second connecting pipe.
[0037] The user load circuit includes a first three-way valve 35, a fan coil 18, a radiator 19 and a floor heating coil 21. The first interface of the first three-way valve 35 serves as the water inlet end of the user load circuit. The second interface of the first three-way valve 35 is connected to the water inlet of the fan coil 18 through a first branch pipe, and the water outlet of the fan coil 18 is connected to the first water outlet main pipe or the second water outlet main pipe through a second branch pipe; the third interface of the first three-way valve 35 is connected to the first interface of the second three-way valve 36, the second interface of the second three-way valve 36 is connected to the water inlets of multiple radiators 19 arranged in parallel, the water outlet of the radiator 19 is connected to the first interface of the third three-way valve 37, and the second interface of the third three-way valve 37 is connected to the second water outlet main pipe; the third interface of the second three-way valve 36 is connected to the water inlet of the manifold 20, the water outlet of the manifold 20 is connected to the floor heating coil 21, and the water outlet of the manifold 20 is connected to the third interface of the third three-way valve 37.
[0038] The first branch pipe is equipped with a load water inlet exhaust valve 38, a first ball valve 39, a first filter 40 and a first flexible connection 41, and the second branch pipe is equipped with a load water outlet exhaust valve 42, a second ball valve 43, a first electric valve 44 and a second flexible connection 45. The water inlet and outlet of the radiator 19 are both provided with a radiator ball valve 46. The water inlet and outlet of the manifold 20 are both provided with a third ball valve 47.
[0039] Along the direction of the air source heat pump main unit 1 to the user load loop, the fourth ball valve 48, the first flexible joint 49, the third soft connection 50, the first thermometer 51, the first pressure gauge 52, the first non-return valve 10, the first water flow switch 24, the fifth ball valve 53 and the first flow meter 11 are installed in sequence on the water inlet branch pipe; the sixth ball valve 54 is installed on the upper left water inlet 29, the lower left water inlet 31, the upper right water inlet 30 and the lower right water inlet 32 of the water tank 25; the third flexible joint 55 is also provided on the water inlet branch pipe, and the third flexible joint 55 connects the first flow meter 11 and the sixth ball valve 54 of the upper left water inlet 29 of the water tank 25.
[0040] In the secondary system, along the direction of the water tank 25 to the user load circuit, the second water inlet main pipe is successively installed with the seventh ball valve 56, the fourth flexible joint 57, the second filter 58, the fourth soft connection 59, the shielded pump 23, the fifth soft connection 60, the second thermometer 61, the second pressure gauge 62, the second one-way valve 63, the second pipe heater 16, the fourth flexible joint 64 and the second flow meter 65, and a pressure difference bypass valve 17 is also installed between the second water inlet main pipe and the second water outlet main pipe.
[0041] An eighth ball valve 66, a fifth flexible joint 67 and a third filter 70 are installed on the second water outlet main pipe. A third temperature gauge 68 and a third pressure gauge 69 are also installed on the second water outlet main pipe.
[0042] Along the direction from the air source heat pump main unit 1 to the water tank 25, the second connecting pipe is sequentially installed with a ninth ball valve 4, a sixth flexible joint 5, a sixth soft connection 6, a fourth thermometer 7, a fourth pressure gauge 8, a fourth filter 9 and a seventh flexible joint 71.
[0043] A water supply port 33 is also provided at the bottom of the water tank 25, and a water supply ball valve is installed on the water supply port. The water supply ball valve is connected to the eighth joint, the eighth joint is connected to the ninth joint, and a tenth ball valve is provided on the pipeline between the eighth joint and the ninth joint. The ninth joint is connected to the second electric valve 15, the second electric valve 15 is connected to the gate valve 14 in parallel, the second electric valve 15 is connected to the fifth filter, the fifth filter is connected to the third one-way valve, the third one-way valve is connected to the fifth pressure gauge, the fifth pressure gauge is connected to the tenth joint, the tenth joint is connected to the eleventh ball valve, and the eleventh ball valve is connected to the water supply pipeline.
[0044] In addition, the air source heat pump host 1 is provided with a refrigerant low pressure meter 3 and a refrigerant high pressure meter 2. A twelfth ball valve is installed on the hollow exhaust rod 22.
[0045] It should be noted that Example 1 and Example 2 are two simulation forms of the utility model air source heat pump multifunctional learning platform, which simulate the primary system and the secondary system respectively. The difference lies in the different assembly forms. Therefore, only one set of the same components of the primary system and the secondary system is set, and they are disassembled and assembled according to actual needs. It can also demonstrate the operation of floor heating and floor cooling systems, fan coil cooling and heating, and summer radiation cooling floor temperature control and fan coil dehumidification, so that students can intuitively see the operating parameters of the system and master the working principle, which helps students master the working principle of the system. It can also simulate common faults of water circuits, fluorine circuits, and circuits to cultivate students' ability to judge system faults. This test bench can also be used as a training platform, and can install and debug the floor heating, fan coils, water tanks, etc. of the air source heat pump host, improve students' skills, and meet the technical requirements of the position.
[0046] Although the present invention has been disclosed as above in terms of preferred embodiments, they are not intended to limit the present invention. Anyone skilled in the art can make various changes or modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be based on the scope of protection defined by the claims of this application.
Claims
1. A multifunctional learning platform for air source heat pump, characterized in that: The invention comprises an air source heat pump host, a water tank and a user load circuit, wherein an opening is arranged on the top of the water tank, a hollow exhaust rod is installed on the opening, three connected branch pipes are arranged on the top of the hollow exhaust rod, a water tank pressure gauge, a safety valve and a water tank exhaust valve are installed on the three branch pipes respectively, an upper left water inlet, a lower left water inlet, an upper right water inlet and a lower right water inlet are arranged on the water tank, when the air source heat pump host, the water tank and the user load circuit are connected into a primary system, the host water outlet of the air source heat pump host is connected to the water inlet end of the user load circuit through the first water inlet main pipe, and the water outlet end of the user load circuit is connected to the water inlet end of the user load circuit through the first water inlet main pipe. The first water outlet main pipe is connected to the upper right water inlet of the water tank, and the lower left water inlet of the water tank is connected to the host water inlet of the air source heat pump host through the first connecting pipe; when the air source heat pump host, the water tank and the user load circuit are connected into a secondary system, the host water outlet of the air source heat pump host is connected to the upper left water inlet of the water tank through the water inlet branch pipe, the upper right water inlet of the water tank is connected to the water inlet end of the load circuit through the second water inlet main pipe, the water outlet end of the load circuit is connected to the lower right water inlet of the water tank through the second water outlet main pipe, and the lower left water inlet of the water tank is connected to the host water inlet of the air source heat pump host through the second connecting pipe.
2. The multifunctional learning platform for air source heat pump according to claim 1, characterized in that: The user load circuit includes a first three-way valve, a fan coil, a radiator and a floor heating coil. The first interface of the first three-way valve serves as the water inlet end of the user load circuit. The second interface of the first three-way valve is connected to the water inlet of the fan coil through a first branch pipe, and the water outlet of the fan coil is connected to the first water outlet main pipe or the second water outlet main pipe through a second branch pipe; the third interface of the first three-way valve is connected to the first interface of the second three-way valve, the second interface of the second three-way valve is connected to the water inlets of multiple radiators arranged in parallel, the water outlet of the radiator is connected to the first interface of the third three-way valve, and the second interface of the third three-way valve is connected to the first water outlet main pipe or the second water outlet main pipe; the third interface of the second three-way valve is connected to the water inlet of the manifold, the water outlet of the manifold is connected to the floor heating coil, and the water outlet of the manifold is connected to the third interface of the third three-way valve.
3. The multifunctional learning platform for air source heat pump according to claim 2 is characterized in that: The first branch pipe is equipped with a load water inlet exhaust valve, a first ball valve, a first filter and a first soft connection, and the second branch pipe is equipped with a load water outlet exhaust valve, a second ball valve, a first electric valve and a second soft connection.
4. The multifunctional learning platform for air source heat pump according to claim 2 or 3, characterized in that: The water inlet and the water outlet of the radiator are both provided with radiator ball valves; the water inlet and the water outlet of the manifold are both provided with a third ball valve.
5. The multifunctional learning platform for air source heat pump according to claim 4, characterized in that: Along the direction of the air source heat pump main unit to the user load loop, the first water inlet main pipe or the water inlet branch pipe are successively installed with a fourth ball valve, a first flexible joint, a third soft connection, a first thermometer, a first pressure gauge, a first non-return valve, a first water flow switch, a fifth ball valve and a first flow meter; the first water inlet main pipe is also provided with a first pipe heater, the first pipe heater is connected to the first flow meter, and a second flexible joint is installed between the first pipe heater and the first three-way valve; a sixth ball valve is installed on the upper left water inlet, the lower left water inlet, the upper right water inlet and the lower right water inlet of the water tank; the water inlet branch pipe is also provided with a third flexible joint, the third flexible joint is connected to the flow meter and the sixth ball valve of the upper left water inlet of the water tank.
6. The multifunctional learning platform for air source heat pump according to claim 5, characterized in that: Along the direction of the water tank to the user load loop, the second water inlet main pipe is successively installed with the seventh ball valve, the fourth joint, the second filter, the fourth soft connection, the shielded pump, the fifth soft connection, the second thermometer, the second pressure gauge, the second one-way valve, the second pipe heater, the fourth joint and the second flow meter, and a pressure differential bypass valve is also installed between the second water inlet main pipe and the second water outlet main pipe.
7. The multifunctional learning platform for air source heat pump according to claim 6, characterized in that: An eighth ball valve, a fifth flexible joint and a third filter are installed on the first water outlet main pipe and the second water outlet main pipe, and a third temperature gauge and a third pressure gauge are also installed on the second water outlet main pipe.
8. The multifunctional learning platform for air source heat pump according to claim 7, characterized in that: Along the direction from the air source heat pump main unit to the water tank, the first connecting pipe and the second connecting pipe are respectively installed with a ninth ball valve, a sixth joint, a sixth flexible connection, a fourth temperature gauge, a fourth pressure gauge, a fourth filter and a seventh joint.
9. The multifunctional learning platform for air source heat pump according to claim 1 or 8, characterized in that: The bottom of the water tank is also provided with a water supply port, on which a water supply ball valve is installed, the water supply ball valve is connected to the eighth joint, the eighth joint is connected to the ninth joint, a tenth ball valve is arranged on the pipeline between the eighth joint and the ninth joint, the ninth joint is connected to the second electric valve, the second electric valve is connected to the gate valve in parallel, the second electric valve is connected to the fifth filter, the fifth filter is connected to the third one-way valve, the third one-way valve is connected to the fifth pressure gauge, the fifth pressure gauge is connected to the tenth joint, the tenth joint is connected to the eleventh ball valve, and the eleventh ball valve is connected to the water supply pipeline.
10. The multifunctional learning platform for air source heat pump according to claim 9, characterized in that: The air source heat pump host is provided with a refrigerant low-pressure gauge and a refrigerant high-pressure gauge; the hollow exhaust rod is provided with a twelfth ball valve.