Modularized turnover energy device

Abstract

The modular turnover energy device comprises a heat pump unit, a water conservancy module and an intelligent control cabinet which are matched with one another. The water conservancy module comprises a water return pipeline and a water supply pipeline, one end of the water return pipeline is connected with the water inlet end of the heat pump unit, and one end of the water supply pipeline is connected with the water outlet end of the heat pump unit; the other end of the water return pipeline and the other end of the water supply pipeline are respectively connected with a water outlet end and a water inlet end of external use equipment; a micro-resistance slow-closing check valve, a circulating water pump and a filter which are connected in series are arranged on the water return pipeline, the water outlet end of the circulating water pump is connected with the micro-resistance slow-closing check valve, and the water inlet end of the circulating water pump is connected with the filter; the water inlet end and the water outlet end of the circulating water pump are respectively connected with pressure sensors in series; the water return pipeline and the water supply pipeline are respectively provided with a full-bore eccentric semi-ball valve; a pressure gauge and a temperature sensor are respectively arranged on the water return pipeline and the water supply pipeline; and an electromagnetic flowmeter is additionally arranged at the water outlet end of the heat pump unit.

Description

Technical Field

[0001] The present disclosure relates to the fields of heat dissipation and refrigeration in industries, civil use, transportation, water conservancy, etc. Specifically, it relates to a modular turnover energy device. Background Art

[0002] Currently, the refrigeration equipment in all fields such as industries, civil use, transportation, and water conservancy has a complex structure, a relatively high operation threshold, and is difficult to clean. Especially for the condensers or evaporators used, they often cannot be cleaned independently of each other. Moreover, for the pipelines and valves connected to the chiller, the flow control accuracy between the pipelines / valves and the chiller is poor, and there are often obstacles in the valve flow channels, which restricts the movement of the cleaning rubber balls, results in low fluid passing efficiency, and easily indirectly increases the energy consumption due to local resistance.

[0003] Currently, the refrigeration equipment in all fields such as industries, civil use, transportation, and water conservancy also often lacks an effective cleaning rubber ball recovery mechanism, and it is easy for the cleaning rubber balls to stay in the chiller, pipelines, or simply block the valves. The manual maintenance cost is too high and it is easy to affect normal production and operation activities. In addition, the automation working mechanism often cannot be well coordinated with the overall structure of the equipment, and there is a lack of an intuitive and accurate way to observe parameters such as the flow rate and temperature of pipelines, condensers, and evaporators, which restricts the overall working efficiency of the equipment and easily leads to unnecessary cost increases.

[0004] The applicant previously applied for "CN119353968A - An intelligent control refrigeration device", but this prior art has the following disadvantages: (A). It is only a single - cold device, unable to achieve the heating function, and uses the refrigerant cycle (evaporation - compression - condensation - expansion) to absorb heat and cool the chilled water for use at the air - conditioning terminal; (B). It needs to be installed in a dedicated machine room and equipped with chilled water pumps, cooling water pumps, and cooling towers, occupying a large space; (C). It needs to configure a chilled water circulation system, a cooling water circulation system, and a cooling tower, with a complex system and a relatively high initial investment; (D). The cooling tower has a large water consumption, the pumps have high energy consumption, and the operating cost is relatively high; (E). The cooling tower is prone to scaling and needs to be cleaned regularly; the chilled and cooling water pumps need maintenance, the system is complex, and the maintenance cost is high; (F). Affected by the heat dissipation efficiency of the cooling tower, the refrigeration efficiency decreases in high - temperature and high - humidity environments; (G). To expand the capacity, it is necessary to add chillers and supporting equipment, and the transformation is complex; (H). It is mainly based on traditional control methods, and additional investment is required for intelligent transformation.

[0005] Regarding this, there has not been a relatively effective solution yet. Summary of the Invention

[0006] In view of the above - mentioned technical problems in the related art, the present disclosure proposes a modular turnover energy device, which can overcome the above - mentioned deficiencies existing in the prior art.

[0007] To achieve the above technical objectives, the technical solution of the present disclosure is implemented as follows: The present disclosure provides a modular turnover energy device, including a heat pump unit, a water conservancy module, and an intelligent control cabinet that cooperate with each other; The water conservancy module includes a return water pipeline and a water supply pipeline. One end of the return water pipeline is connected to the water inlet end of the heat pump unit, and one end of the water supply pipeline is connected to the water outlet end of the heat pump unit; the other ends of the return water pipeline and the water supply pipeline are respectively used to connect to the water outlet end and the water inlet end of an external use device; A slightly resistant slow-closing check valve, a circulating water pump, and a filter are connected in series on the return water pipeline. The water outlet end of the circulating water pump is connected to the slightly resistant slow-closing check valve, and the water inlet end of the circulating water pump is connected to the filter; a pressure sensor is respectively connected in series at the water inlet end and the water outlet end of the circulating water pump; At least one full-bore eccentric semi-spherical valve that can be used as a shut-off valve is respectively provided on the return water pipeline and the water supply pipeline; A pressure gauge and a temperature sensor corresponding to the heat pump unit are respectively provided on the return water pipeline and the water supply pipeline; An electromagnetic flowmeter corresponding to the heat pump unit is further provided at the water outlet end of the heat pump unit; The heat pump unit, the pressure gauge, the temperature sensor, the electromagnetic flowmeter, the slightly resistant slow-closing check valve, the circulating water pump, and the pressure sensor are respectively communicatively connected to the intelligent control cabinet.

[0008] Preferably, the pressure gauges respectively corresponding to the heat pump unit provided on the return water pipeline and the water supply pipeline are used to respectively measure the return water pressure value at the water inlet end of the heat pump unit and the water supply pressure value at the water outlet end, which can assist the intelligent control cabinet to set or adjust the return water and water supply speeds of the heat pump unit, and avoid the water pressure value in the return water pipeline and the water supply pipeline being too high or too low. This can be achieved through existing technologies here.

[0009] Preferably, the water inlet end of the heat pump unit is above its water outlet end.

[0010] Preferably, the intelligent control cabinet includes an intelligent electricity meter and a display screen, and the intelligent electricity meter is communicatively connected to the power-consuming motor of the circulating water pump.

[0011] Preferably, the heat pump unit is further provided with a unit electricity meter.

[0012] Preferably, the heat pump unit, the water conservancy module, and the intelligent control cabinet are all arranged on a frame.

[0013] Preferably, the heat pump unit, the water conservancy module, and the intelligent control cabinet are respectively skid-mounted on the frame.

[0014] Preferably, a module box for protecting the return water pipeline, the water supply pipeline, and the intelligent control cabinet is further provided on the frame.

[0015] Preferably, a plurality of lifting lugs are provided at the top of the frame.

[0016] Preferably, a pipe support 10 for supporting and fixing the return water pipeline and the water supply pipeline is provided on the frame.

[0017] Preferably, the frame is a steel frame.

[0018] Preferably, the water inlet end and the water outlet end of the heat pump unit are respectively connected to the return water pipeline and the water supply pipeline through long-radius elbows.

[0019] Preferably, the electromagnetic flowmeter is a full-bore type remote transmission electromagnetic flowmeter without requirements for the installation length of straight pipes. With the full-bore type remote transmission electromagnetic flowmeter, the flow measurement can be made more reliable, avoiding the influence of the medium flow pattern in the pipeline and the installation position of the instrument. Without requirements for the installation length of straight pipes, that is, it allows installation in both straight pipes and elbows at the same time, thus enhancing adaptability.

[0020] Preferably, the electromagnetic flowmeter is located on the straight pipe section between the corresponding long-radius elbow and the full-bore eccentric semi-spherical valve.

[0021] Preferably, the return water pipeline includes a front return main pipeline and a rear return main pipeline; the front return main pipeline is connected to the water outlet end of the external using equipment; The front return main pipeline is branched into at least two or more parallel return water branches of the same specification, and each return water branch is independently provided with a corresponding micro-resistance slow-closing check valve, a circulating water pump, and a filter; All the return water branches converge to the rear return main pipeline, and the rear return main pipeline is connected to the water inlet end of the heat pump unit.

[0022] Preferably, the connection methods between the micro-resistance slow-closing check valve and the circulating water pump, and between the circulating water pump and the filter are respectively realized by rubber flexible joints for soft connection.

[0023] Preferably, a pressure sensor is respectively provided between the micro-resistance slow-closing check valve and the circulating water pump, and between the circulating water pump and the filter.

[0024] Preferably, the filter adopts a Y-type filter. The streamline-shaped cavity of the Y-type structure reduces the fluid resistance, avoids energy waste caused by excessive pressure drop, and improves the overall system efficiency.

[0025] Preferably, a shock-absorbing device can be provided at the bottom of the heat pump unit.

[0026] Preferably, the heat pump unit is an air-source heat pump unit.

[0027] Preferably, the inner diameters of the cavities of the full-bore eccentric semi-spherical valve, the return water pipeline, and the water supply pipeline are all the same, so as to achieve no necking phenomenon when the fluid passes through, and minimize the turbulence and local resistance loss to the greatest extent.

[0028] Preferably, the full-bore eccentric semi-spherical valve adopts an eccentric valve core design. When the valve is opened and closed, there is no frictional contact between the valve core and the valve seat, so as to achieve small wear of the sealing surface and maintain the low flow resistance characteristic for a long time.

[0029] The full-bore eccentric semi-spherical valve adopts an eccentric valve core design. For its working principle, refer to "Application and Effect of Full-bore Eccentric Semi-spherical Valve in Waterworks" published in "Water Purification Technology", Issue 2, 2022: When the valve is opened, the sphere rotates 3° - 5°, and the spherical crown will disengage from the valve seat, achieving fast opening and closing while reducing the operating torque and energy consumption; when the valve is closed, the spherical crown only contacts the valve seat in the final stage, reducing the wear between the valve seat and the spherical crown and extending the service life of the semi-spherical valve. Due to the eccentric structure design of the full-bore eccentric semi-spherical valve 12, when the valve is fully open, both the spherical crown and the valve seat are hidden outside the high-speed water flow area, and the valve body flow channel is completely aligned with the pipeline, not only without blocking the flow channel, but also without the situation of flow channel reduction / enlargement / bending, and the water loss of the valve is extremely small. It solves the problems of traditional valves due to flow channel constriction or complex structure, which are prone to large fluid resistance and particle accumulation and blockage; when the ordinary semi-spherical valve is opened and closed, the friction between the valve core and the valve seat is serious, and it is easy to wear and leak after long-term use. The eccentric structure (the rotation axis deviates from the center of the sphere) enables the valve core to quickly disengage from the valve seat during opening and closing, reducing friction and extending the life of the sealing parts; traditional valves may have poor sealing due to medium impact under high pressure difference. The eccentric design uses fluid pressure to enhance the sealing specific pressure, and it gets tighter when closed, improving the high-pressure sealing reliability; ordinary valves require a large operating force under high pressure or large size. The eccentric structure reduces friction, lowers the opening and closing torque, saves driving energy consumption, and is more suitable for automatic control; traditional valves need to frequently replace the sealing parts or perform overall maintenance after wear. The wear-resistant design and long life of the eccentric semi-spherical valve reduce the maintenance frequency and lower the comprehensive cost.

[0030] Preferably, the double-eccentric moment optimization method of the full-bore eccentric semi-spherical valve is: through the geometric cooperation of the eccentric shaft and the valve core, to achieve fast opening and closing while reducing the operating torque and energy consumption.

[0031] During implementation, the function of the full-bore eccentric semi-spherical valve: through the design of equal diameter of its valve body cavity and pipeline, the necking effect of traditional valves is eliminated, ensuring no turbulence and local resistance loss when the fluid passes through; its eccentric semi-spherical structure avoids the friction between the valve core and the valve seat during the opening and closing process, not only extending the life of the sealing surface, but also reducing the operating torque, significantly reducing the system pressure drop (experimental data shows that the resistance is reduced by 75% compared with traditional gate valves), thereby improving the pipeline transportation efficiency and reducing the energy consumption of the pump, and is applicable to the skid-mounted energy system with high flow rate and high energy efficiency requirements.

[0032] Preferably, the micro-resistance slow-closing check valve adopts a low-resistance valve flap structure: a lightweight composite material valve flap can be used, combined with the streamline-shaped deflector design, and the opening resistance coefficient is as low as 0.3; The slightly resistant slow-closing check valve includes a slow-closing device, which is preferably a hydraulic buffer locking mechanism with a damping oil cylinder built in. By adjusting the oil flow control valve, the closing speed of the valve flap can be adjusted to avoid the water hammer effect and reduce the energy loss caused by pressure fluctuations.

[0033] The slightly resistant slow-closing check valve adopts a two-way sealing technology: when flowing forward, the valve flap is fully open; when flowing backward, soft sealing is achieved through the slow-closing device to reduce the opening and closing impact.

[0034] During implementation, the functions of the slightly resistant slow-closing check valve are as follows: when the fluid in the pipeline stops flowing, the valve flap automatically closes to block the reverse flow of the medium, avoiding damage to the water pump due to backflow. When the valve flap closes, it slowly closes through a hydraulic damping device or a spring mechanism, extending the closing time and reducing the sudden pressure rise caused by the fluid inertia. (For example, when the flow rate is 2.5 m / s, the pressure drop of the slightly resistant slow-closing check valve is 0.015 MPa, while that of an ordinary swing check valve is 0.05 MPa, and the resistance is reduced by 70%.) It can avoid pipeline vibration or rupture, has the function of eliminating destructive water hammer, and ensures the safety and stability of the system.

[0035] The slightly resistant slow-closing check valve can purchase existing technology products such as "HH44X(H) slightly resistant slow-closing check valve", and its working principle is as Figure 5 shown: The slightly resistant slow-closing check valve is automatically pushed open by the thrust of the inlet medium. When the valve flap is fully open, the balance weight falls to the reverse side of the valve flap, achieving the purpose of balancing part of the valve flap weight and reducing the pressure (resistance) of the valve flap weight on the water flow. In addition, the pressurized water in the valve body flows into the rear cavity of the piston through the regulating valve, pushing the piston all the way in. When the water flow suddenly stops, due to the action of part of the valve flap's own weight and the thrust of the reverse flowing water, the valve flap automatically closes. However, since the piston rod is at the top position, the valve flap cannot close completely, and there is still about 20% of the area for the water flow to pass through, weakening the water hammer pressure (a professional term representing the water flow pressure). The function of the damping oil cylinder is to push the oil in the damping oil cylinder into the buffer cylinder through the action of the pipeline pressure water, causing the piston in the buffer cylinder to extend, thereby achieving slow closing and lubricating the buffer cylinder at the same time. The slightly resistant slow-closing check valve is installed in the pipeline, which can be used to prevent the reverse flow of the medium and eliminate destructive water hammer pressure, and can effectively reduce the water hammer pressure when the valve closes, ensuring the safe operation of the pipe network. http: / / jdvalve.com / showcn104857HH44X(H)weizuhuanbizhihuifa.html, this source can be referred to.

[0036] Preferably, the intelligent control cabinet respectively obtains the pressure value P1 at the water inlet end of the water pump, the pressure value P2 at the water outlet end of the water pump, the instantaneous water supply flow value Q, the power Power of the motor equipped with the water pump, and the efficiency Effm of the motor equipped with the water pump, calculates the instantaneous efficiency Effp of the water pump operation through Formula 1, and displays the pressure value P1 at the water inlet end of the water pump, the pressure value P2 at the water outlet end of the water pump, and the instantaneous efficiency Effp of the water pump operation on the display screen of the intelligent control cabinet; Effp = [(P2 - P1) × Q] / (2298 × Power × Effm); (Formula 1); P1: represents the pressure value at the water inlet end of the circulating water pump, measured by the pressure sensor corresponding to the water inlet end of the circulating water pump, with the unit of psi; P2: represents the pressure value at the water outlet end of the circulating water pump, measured by the pressure sensor corresponding to the water outlet end of the circulating water pump, with the unit of psi; Q: represents the instantaneous flow value of the water supply pipeline, measured by the electromagnetic flowmeter, with the unit of gpm; Power: represents the operating power of the motor equipped with the circulating water pump, measured by the intelligent electric meter installed on the intelligent control cabinet, with the unit of KW; Effm: represents the efficiency of the motor equipped with the circulating water pump, measured by the intelligent electric meter installed on the intelligent control cabinet; Effp: represents the instantaneous efficiency of the circulating water pump operation; 2298: is a fixed constant for converting the power unit in the US customary units to kilowatts.

[0037] Preferably, the intelligent control cabinet respectively obtains the return water temperature, the supply water temperature, the instantaneous water supply flow value, and the instantaneous power consumption of the heat pump unit, calculates the instantaneous cooling / heating capacity, the cycle cumulative cooling / heating capacity, the instantaneous coefficient of performance COP, the cycle cumulative power consumption, and the cycle coefficient of performance COPa through the following respective formulas, and displays them on the display screen of the intelligent control cabinet; Supply - return water temperature difference = |return water temperature - supply water temperature|; (Formula 2); Instantaneous cooling / heating capacity = C × instantaneous water supply flow value × supply - return water temperature difference; (Formula 3); Instantaneous coefficient of performance COP = (instantaneous cooling / heating capacity) ÷ instantaneous power consumption; (Formula 4); Cycle cumulative cooling / heating capacity = Σ(instantaneous cooling / heating capacity); (Formula 5); Cycle cumulative power consumption = Σinstantaneous power consumption; (Formula 6); Cycle coefficient of performance COPa = (cycle cumulative cooling / heating capacity) ÷ cycle cumulative power consumption; (Formula 7); Wherein: C represents the specific heat capacity of water and is a constant; Return water temperature: Represents the water temperature at the water inlet end of the heat pump unit, that is, the measured water temperature of the return water to be cooled or heated flowing into the heat pump unit, measured by the temperature sensor installed on the return water pipeline; Supply water temperature: Represents the water temperature at the water outlet end of the heat pump unit - that is, the measured water temperature of the supply water flowing out after being cooled or heated by the heat pump unit, measured by the temperature sensor installed on the supply water pipeline; Supply-return water temperature difference: The absolute value of the difference between the return water temperature and the supply water temperature; in the cooling mode, the return water temperature >= the supply water temperature; in the heating mode, the return water temperature < the supply water temperature; Instantaneous supply water flow value: Represents the instantaneous flow value in the supply water pipeline, measured by the electromagnetic flowmeter, with the unit of gpm; Instantaneous cooling / heating capacity: Represents the cooling capacity or heating capacity instantaneously completed during the process of the heat pump unit receiving return water and cooling the external supply water; Instantaneous power consumption: The value of the instantaneous power consumption of the heat pump unit, measured by the unit electric meter; Instantaneous coefficient of performance COP: The ratio of the instantaneous cooling / heating capacity and the instantaneous power consumption of the heat pump unit, used to measure the instantaneous working (cooling / heating) performance of the heat pump unit; Periodic cumulative cooling / heating capacity: The cumulative value of all instantaneous cooling / heating capacities of the heat pump unit within the selected period, and the selected period ranges from 1 to 12 months; Periodic cumulative power consumption: The cumulative value of all instantaneous power consumptions of the heat pump unit within the selected period, and the selected period ranges from 1 to 12 months; Periodic coefficient of performance COPa: The ratio of the periodic cumulative cooling / heating capacity and the periodic cumulative power consumption of the heat pump unit within the selected period, used to measure the overall periodic working (cooling / heating) performance of the heat pump unit within the selected period.

[0038] Advantages of the present disclosure: The present disclosure has a simple structure, convenient operation, and easy expansion. It is skid-mounted on a steel frame through a heat pump unit, a hydraulic module assembly, a module box, etc., and can be configured with equipment vibration damping bases and pipeline supports. Through a highly compact integrated design, the space occupation is significantly reduced, and the space utilization rate is improved. The external dimensions of the modular device can be designed to be 6m (L) × 3m (W) × 3m (H), etc., and it supports road transportation and hoisting and relocation. The present disclosure can be pre-assembled and debugged in the factory. Only hoisting and splicing and pipeline docking are required on site. All pipelines, valves, sensors, etc. of the device can adopt a "plug and play" interface design. The on-site installation time is shortened by more than 70% compared with traditional projects. The standardized modules reduce the on-site welding and debugging workload, the construction risk is reduced by 40%, and the construction complexity and labor cost are greatly reduced. The modular architecture of the present disclosure supports expansion to meet the personalized energy consumption needs of projects of different scales. The "non-destructive disassembly - recombination" technology ensures that the performance of core components such as heat pump units, water conservancy modules, and intelligent control cabinets does not decay after multiple disassembly and assembly, and can be reused throughout the life cycle.

[0039] In the present disclosure, for the shut-off valves of the return water pipeline, the water supply pipeline, the inlet end and the outlet end of the water pump, etc., eccentric semi-spherical valves are adopted. A micro-resistance slow-closing check valve is adopted at the outlet end of the water pump. Long-radius elbows are adopted at both the inlet end and the outlet end of the heat pump unit to be respectively connected and matched with the return water pipeline and the water supply pipeline, so as to effectively reduce the local resistance of the pipeline system and reduce the system operation energy consumption. During installation, attention should be paid to the installation direction of each shut-off valve and the fastening and sealing performance of the interfaces, ensure that the valve handle has enough rotation space, avoid using the eccentric semi-spherical valve as a throttling device, ensure that the valve is concentric with the pipeline flange, and check the cleanliness of the valve and the pipeline.

[0040] In the present disclosure, through the combined design of a full-bore eccentric semi-spherical valve and a micro-resistance slow-closing check valve, the superposition of local resistances is reduced. The full-bore valve reduces the steady-state flow resistance, and the micro-resistance check valve optimizes the transient flow resistance, and the overall pipeline resistance is reduced by more than 50%. The cooperation of the slow-closing function and the low-torque valve reduces the frequent start and stop of the pump, and the comprehensive energy efficiency is improved by 18 - 20%.

[0041] In the present disclosure, an electromagnetic flowmeter is arranged at the outlet end of the heat pump unit. The electromagnetic flowmeter adopts a full-bore type remote transmission electromagnetic flowmeter without the requirement of straight pipe section installation length. The zero straight pipe section electromagnetic flowmeter has reliable flow measurement and is not affected by the flow pattern of the medium in the pipeline and the installation position of the instrument. The instantaneous flow and cumulative flow of the heat pump unit are transmitted to the intelligent control cabinet through a data line and can be displayed on the display screen of the intelligent control cabinet. The electromagnetic flowmeter adopts a full-bore structure, can be internally provided with multiple pairs of measuring electrodes, has no pressure loss, can ensure that the measurement accuracy is not less than ±0.5%, and can reach ±0.2%. The display screen of the heat pump unit integrates the reception of the flow signal.

[0042] Compared with the prior art CN119353968A, the present disclosure has the following advantages: (A). The reverse Carnot cycle is adopted. In summer, the indoor heat is absorbed and released outdoors during refrigeration, and in winter, the outdoor heat is absorbed and released indoors during heating; (B). This application combines both refrigeration and heating functions. It can either return hot water and supply cold water from external equipment or return cold water and supply hot water from external equipment. Only corresponding settings need to be made to the heat pump unit, making it a dual-purpose machine with strong adaptability; (C). This application can be installed on the roof or the ground, without the need for a dedicated machine room, and it has a small volume and overall floor space; (D). Only the indoor and outdoor units and the refrigerant pipeline need to be connected, the system is simple, and the initial investment is relatively low; (E). There is no cooling water system, the pump energy consumption is low, and the operating cost is relatively low; (F). The system is simple, there are few maintenance points, and the maintenance cost is low; (G). Modular design, supports gradual expansion, and the transformation is simple; (H). It integrates functions such as variable frequency technology and intelligent algorithms, with a high level of intelligence; (H). Since the heat pump unit requires a certain working time for the output after refrigerating or heating the return water, a circulating pump is configured in the return water pipeline to improve the return water efficiency, which can match the working efficiency of the heat pump unit after refrigerating or heating and supplying water. As long as the matching working parameters are set for the heat pump unit and the circulating pump, a complete set of working processes of "return water - refrigeration or heating - water supply" can be achieved continuously, avoiding situations such as idling of the heat pump unit due to slow return water. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or the prior art, the following will briefly introduce the drawings required in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present disclosure. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0044] Figure 1 It is a perspective view (perspective) of the modular turnover energy device of the present disclosure.

[0045] Figure 2 It is a top view of the modular turnover energy device of the present disclosure (the arrow indicates the water flow direction).

[0046] Figure 3 It is the front view of the modular turnover energy device of the present disclosure Figure 1 (the arrow indicates the water flow direction).

[0047] Figure 4 It is the front view of the modular turnover energy device of the present disclosure Figure 2 .

[0048] Figure 5 It is a schematic diagram of the micro-resistance slow-closing check valve adopted by the present disclosure. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0049] The following will clearly and completely describe the technical solutions in the embodiments of the present disclosure with reference to the accompanying drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present disclosure belong to the scope of protection of the present disclosure.

[0050] As Figures 1 - 5 shown, for the convenience of understanding the above technical solutions of the present disclosure, the following will detail the above technical solutions of the present disclosure in terms of specific usage methods.

[0051] The modular turnover energy device provided by the present disclosure includes a heat pump unit 3, a water conservancy module, and an intelligent control cabinet 6 that cooperate with each other; The water conservancy module includes a return water pipeline 4 and a water supply pipeline 5. One end of the return water pipeline 4 is connected to the water inlet end of the heat pump unit 3, and one end of the water supply pipeline 5 is connected to the water outlet end of the heat pump unit 3; the other ends of the return water pipeline 4 and the water supply pipeline 5 are respectively used to connect the water outlet end and the water inlet end of an external usage device; A slightly resistant slow-closing check valve 13, a circulating water pump 14, and a filter 16 are connected in series on the return water pipeline 4. The water outlet end of the circulating water pump 14 is connected to the slightly resistant slow-closing check valve 13, and the water inlet end of the circulating water pump 14 is connected to the filter 16; pressure sensors 17 are respectively connected in series at the water inlet end and the water outlet end of the circulating water pump 14; At least one full-bore eccentric semi-spherical valve 12 that can be used as a shut-off valve is respectively provided on the return water pipeline 4 and the water supply pipeline 5; Pressure gauges 8 and temperature sensors 9 corresponding to the heat pump unit 3 are respectively provided on the return water pipeline 4 and the water supply pipeline 5; An electromagnetic flowmeter 11 corresponding to the heat pump unit 3 is further provided at the water outlet end of the heat pump unit 3; The heat pump unit 3, the pressure gauge 8, the temperature sensor 9, the electromagnetic flowmeter 11, the slightly resistant slow-closing check valve 13, the circulating water pump 14, and the pressure sensor 17 are respectively communicatively connected to the intelligent control cabinet 6.

[0052] In a certain feasible embodiment, the pressure gauges 8 respectively provided on the return water pipeline 4 and the water supply pipeline 5 corresponding to the heat pump unit 3 are used to respectively measure the return water pressure value at the water inlet end of the heat pump unit 3 and the water supply pressure value at the water outlet end, which can assist the intelligent control cabinet 6 to set or adjust the return water and water supply speeds of the heat pump unit 3, and avoid the water pressure value in the return water pipeline 4 and the water supply pipeline 5 from being too high or too low. This can be achieved through existing technologies here.

[0053] In a certain feasible embodiment, the water inlet end of the heat pump unit is above its water outlet end.

[0054] In a feasible embodiment, the intelligent control cabinet 6 includes an intelligent electricity meter and a display screen, and the intelligent electricity meter is communicatively connected to the power-using motor of the circulating water pump 14.

[0055] In a feasible embodiment, the heat pump unit 3 is additionally provided with a unit electricity meter.

[0056] In a feasible embodiment, the heat pump unit 3, the water conservancy module, and the intelligent control cabinet 6 are all arranged on the frame 1.

[0057] In a feasible embodiment, the heat pump unit 3, the water conservancy module, and the intelligent control cabinet 6 are respectively skid-mounted on the frame 1.

[0058] In a feasible embodiment, a module box body 18 for protecting the return water pipeline 4, the water supply pipeline 5, and the intelligent control cabinet 6 is further arranged on the frame 1.

[0059] In a feasible embodiment, a plurality of lifting lugs 2 are arranged at the top of the frame 1.

[0060] In a feasible embodiment, pipeline supports 10 for supporting and fixing the return water pipeline 4 and the water supply pipeline 5 are arranged on the frame 1.

[0061] In a feasible embodiment, the frame 1 is a steel frame.

[0062] In a feasible embodiment, the water inlet end and the water outlet end of the heat pump unit 3 are respectively connected to the return water pipeline 4 and the water supply pipeline 5 through long-radius elbows 7.

[0063] In a feasible embodiment, the electromagnetic flowmeter 11 is a full-bore type remote electromagnetic flowmeter without requirements for the installation length of straight pipe sections. By using a full-bore type remote electromagnetic flowmeter, the flow measurement can be made more reliable, avoiding being affected by the medium flow pattern in the pipeline and the installation position of the instrument. Without requirements for the installation length of straight pipe sections, that is, it allows installation in both straight pipes and elbows at the same time, thus enhancing adaptability.

[0064] In a feasible embodiment, the electromagnetic flowmeter 11 is located on the straight pipe section between the corresponding long-radius elbow 7 and the full-bore eccentric semi-spherical valve 12.

[0065] In a feasible embodiment, the return water pipeline 4 includes a front-return main pipeline and a rear-return main pipeline; the front-return main pipeline is connected to the water outlet end of the external using equipment; The front-return main pipeline is branched into at least two or more parallel return water branches of the same specification, and a corresponding micro-resistance slow-closing check valve 13, a circulating water pump 14, and a filter 16 are respectively and independently arranged on each return water branch; All the return water branches converge to the rear-return main pipeline, and the rear-return main pipeline is connected to the water inlet end of the heat pump unit 3.

[0066] In a certain feasible embodiment, the connection modes between the micro-resistance slow-closing check valve 13 and the circulating water pump 14, and between the circulating water pump 14 and the filter 16 respectively adopt the rubber flexible joint 15 to achieve soft connection.

[0067] In a certain feasible embodiment, a pressure sensor 17 is respectively arranged between the micro-resistance slow-closing check valve 13 and the circulating water pump 14, and between the circulating water pump 14 and the filter 16.

[0068] In a certain feasible embodiment, the filter 16 adopts a Y-type filter. The streamline cavity of the Y-type structure reduces the fluid resistance, avoids energy waste caused by excessive pressure drop, and improves the overall system efficiency.

[0069] In a certain feasible embodiment, a shock absorption device 19 can be arranged at the bottom of the heat pump unit 3.

[0070] In a certain feasible embodiment, the heat pump unit 3 is an air source heat pump unit.

[0071] In a certain feasible embodiment, the inner cavity diameter of the full-bore eccentric semi-spherical valve 12, the inner diameter of the return water pipe 4, and the inner diameter of the water supply pipe 5 are all the same, so as to achieve no necking phenomenon when the fluid passes through, and minimize the turbulence and local resistance loss to the greatest extent.

[0072] In a certain feasible embodiment, the full-bore eccentric semi-spherical valve 12 adopts an eccentric valve core design. When the valve is opened and closed, there is no friction contact between the valve core and the valve seat, so as to achieve small wear of the sealing surface and maintain the low flow resistance characteristic for a long time.

[0073] The full-bore eccentric semi-spherical valve 12 adopts an eccentric valve core design. For its working principle, refer to "The Application and Effect of the Full-bore Eccentric Semi-spherical Valve in the Waterworks" published in the 2nd issue of "Water Purification Technology" in 2022: When the valve is opened, the sphere rotates 3° to 5°, and the spherical crown will disengage from the valve seat, achieving rapid opening and closing while reducing the operating torque and energy consumption; when the valve is closed, the spherical crown only contacts the valve seat in the final stage, reducing the wear between the valve seat and the spherical crown and extending the service life of the semi-spherical valve. Due to the eccentric structure design of the full-bore eccentric semi-spherical valve 12, when the valve is fully open, both the spherical crown and the valve seat are hidden outside the high-speed water flow area, and the valve body flow channel is completely aligned with the pipeline. It not only has no blockage to the flow channel, but also has no situation of flow channel reduction / enlargement / bending, and the water loss of the valve is extremely small. It solves the problems of traditional valves, such as large fluid resistance and particle accumulation and blockage caused by flow channel constriction or complex structure; when the ordinary semi-spherical valve is opened and closed, the friction between the valve core and the valve seat is serious, and it is easy to wear and leak after long-term use. The eccentric structure (the rotation axis deviates from the center of the sphere) makes the valve core quickly disengage from the valve seat during opening and closing, reducing friction and extending the life of the seal; traditional valves may have poor sealing due to medium impact under high pressure difference. The eccentric design uses fluid pressure to enhance the sealing specific pressure, and it gets tighter when closing, improving the high-pressure sealing reliability; ordinary valves require a large operating force under high pressure or large size. The eccentric structure reduces friction, lowers the opening and closing torque, saves driving energy consumption, and is more suitable for automatic control; traditional valves need to frequently replace the seal or perform overall maintenance after wear. The wear-resistant design and long life of the eccentric semi-spherical valve reduce the maintenance frequency and lower the comprehensive cost.

[0074] In a feasible embodiment, the optimization method of the double eccentric torque of the full-bore eccentric semi-spherical valve 12 is: through the geometric cooperation of the eccentric shaft and the valve core, to achieve rapid opening and closing while reducing the operating torque and energy consumption.

[0075] During implementation, the function of the full-bore eccentric semi-spherical valve 12: Through the design of equal diameter of its valve body cavity and the pipeline, the necking effect of traditional valves is eliminated, ensuring no turbulence and local resistance loss when the fluid passes through; its eccentric semi-spherical structure avoids the friction between the valve core and the valve seat during the opening and closing process, not only extending the life of the sealing surface, but also reducing the operating torque, significantly reducing the system pressure drop (experimental data shows that the resistance is reduced by 75% compared with traditional gate valves), thereby improving the pipeline transportation efficiency and reducing the energy consumption of the pump, and is suitable for skid-mounted energy systems with high flow rate and high energy efficiency requirements.

[0076] In a feasible embodiment, the micro-resistance slow-closing check valve 13 adopts a low-resistance valve flap structure: A lightweight composite material valve flap can be used, combined with a streamlined guide cover design, and the opening resistance coefficient is as low as 0.3; The micro-resistance slow-closing check valve 13 includes a slow-closing device. The slow-closing device is preferably a hydraulic buffer locking mechanism with a damping oil cylinder built in, and the closing speed of the valve flap is adjusted by regulating the oil flow control valve to avoid the water hammer effect and reduce the energy loss caused by pressure fluctuation.

[0077] The slightly resistant slow-closing check valve 13 adopts a two-way sealing technology: when flowing forward, the valve flap is fully open, and when flowing backward, soft sealing is achieved through the slow-closing device to reduce the opening and closing impact.

[0078] During implementation, the functions of the slightly resistant slow-closing check valve 13 are as follows: when the fluid in the pipeline stops flowing, the valve flap automatically closes to block the reverse flow of the medium, avoiding damage to the water pump due to backflow. When the valve flap closes, it slowly closes through a hydraulic damping device or a spring mechanism, extending the closing time and reducing the sudden pressure rise caused by the fluid inertia. (When the flow rate is 2.5 m / s, the pressure drop of the slightly resistant slow-closing check valve is 0.015 MPa, while that of an ordinary swing check valve is 0.05 MPa, and the resistance is reduced by 70%.) It avoids pipeline vibration or rupture, has the function of eliminating destructive water hammer, and ensures the safety and stability of the system.

[0079] The slightly resistant slow-closing check valve 13 can purchase existing products such as "HH44X(H) slightly resistant slow-closing check valve", and its working principle is as Figure 5 shown: The slightly resistant slow-closing check valve is automatically pushed open by the thrust of the inlet medium. When the valve flap is fully open, the balance weight falls to the reverse side of the valve flap, achieving the purpose of balancing part of the valve flap weight and reducing the pressure (resistance) of the valve flap weight on the water flow. In addition, the pressure water in the valve body flows into the rear cavity of the piston through the regulating valve, pushing the piston completely in. When the water flow suddenly stops, due to the partial self-weight of the valve flap and the thrust of the reverse flowing water, the valve flap automatically closes. However, since the piston rod is in the top position, the valve flap cannot close completely, and there is still about 20% of the area for the water flow to pass through, weakening the water hammer pressure (a professional term representing the water flow pressure). The function of the damping oil cylinder is to push the oil in the damping oil cylinder into the buffer cylinder through the action of the pipeline pressure water, causing the piston in the buffer cylinder to extend, thereby achieving slow closing and lubricating the buffer cylinder at the same time. The slightly resistant slow-closing check valve is installed in the pipeline, which can be used to prevent the reverse flow of the medium and eliminate the destructive water hammer pressure, and can effectively reduce the water hammer pressure when the valve closes, ensuring the safe operation of the pipe network. http: / / jdvalve.com / showcn104857HH44X(H)weizuhuanbizhihuifa.html, this source can be referred to.

[0080] In a feasible embodiment, the intelligent control cabinet 6 respectively obtains the water pump inlet end pressure value P1, the water pump outlet end pressure value P2, the instantaneous water supply flow value Q, the power of the water pump's matching electric motor Power, and the efficiency of the water pump's matching electric motor Effm, and calculates the instantaneous efficiency Effp of the water pump operation through Formula 1, and displays the water pump inlet end pressure value P1, the water pump outlet end pressure value P2, and the instantaneous efficiency Effp of the water pump operation through the display screen of the intelligent control cabinet 6; Effp = [(P2 - P1) × Q] / (2298 × Power × Effm); (Formula 1); P1: Represents the inlet pressure value of the circulating water pump 14, measured by the pressure sensor 17 corresponding to the inlet of the circulating water pump 14, with the unit of psi; P2: Represents the outlet pressure value of the circulating water pump 14, measured by the pressure sensor 17 corresponding to the outlet of the circulating water pump 14, with the unit of psi; Q: Represents the instantaneous flow value of the water supply pipeline 5, measured by the electromagnetic flowmeter 11, with the unit of gpm; Power: Represents the operating power of the electric motor equipped with the circulating water pump 14, measured by the intelligent electric meter installed on the intelligent control cabinet 6, with the unit of KW; Effm: Represents the efficiency of the electric motor equipped with the circulating water pump 14, measured by the intelligent electric meter installed on the intelligent control cabinet 6; Effp: Represents the instantaneous operating efficiency of the circulating water pump 14; 2298: A fixed constant for converting the power unit in US customary units to kilowatts.

[0081] In a feasible embodiment, the intelligent control cabinet 6 respectively obtains the return water temperature, supply water temperature, instantaneous supply water flow value, and instantaneous power consumption of the heat pump unit 3, and calculates and obtains the instantaneous cooling / heating capacity, cycle cumulative cooling / heating capacity, instantaneous coefficient of performance COP, cycle cumulative power consumption, and cycle coefficient of performance COPa through the following respective formulas, and displays them on the display screen of the intelligent control cabinet 6; Supply - return water temperature difference = |return water temperature - supply water temperature|; (Formula 2); Instantaneous cooling / heating capacity = C × instantaneous supply water flow value × supply - return water temperature difference; (Formula 3); Instantaneous coefficient of performance COP = (instantaneous cooling / heating capacity) ÷ instantaneous power consumption; (Formula 4); Cycle cumulative cooling / heating capacity = Σ(instantaneous cooling / heating capacity); (Formula 5); Cycle cumulative power consumption = Σinstantaneous power consumption; (Formula 6); Cycle coefficient of performance COPa = (cycle cumulative cooling / heating capacity) ÷ cycle cumulative power consumption; (Formula 7); Wherein: C represents the specific heat capacity of water and is a constant; Return water temperature: Represents the water temperature at the inlet of the heat pump unit 3, that is, the water temperature of the return water to be cooled or heated flowing into the heat pump unit 3, measured by the temperature sensor 9 provided on the return water pipeline 4; Supply water temperature: It represents the water temperature at the outlet end of the heat pump unit 3, that is, the water temperature measured from the supply water flowing out after being cooled or heated by the heat pump unit 3, and is measured by the temperature sensor 9 provided on the supply water pipeline 5; Supply - return water temperature difference: The absolute value of the difference between the return water temperature and the supply water temperature; in the refrigeration mode, the return water temperature >= the supply water temperature; in the heating mode, the return water temperature < the supply water temperature; Instantaneous supply water flow value: It represents the instantaneous flow value in the supply water pipeline 5, measured by the electromagnetic flowmeter 11, and the unit is gpm; Instantaneous refrigeration / heating capacity: It represents the refrigeration capacity or heating capacity instantaneously completed during the process that the heat pump unit 3 receives the return water and cools the external supply water; Instantaneous power consumption: The value of the instantaneous power consumption of the heat pump unit 3, measured by the unit electric meter; Instantaneous coefficient of performance COP: The ratio of the instantaneous refrigeration / heating capacity of the heat pump unit 3 to the instantaneous power consumption, used to measure the instantaneous working (refrigeration / heating) performance of the heat pump unit 3; Period - cumulative refrigeration / heating capacity: The cumulative value of all instantaneous refrigeration / heating capacities of the heat pump unit 3 within the selected period, and the selected period takes values between 1 and 12 months; Period - cumulative power consumption: The cumulative value of all instantaneous power consumptions of the heat pump unit 3 within the selected period, and the selected period takes values between 1 and 12 months; Period coefficient of performance COPa: The ratio of the period - cumulative refrigeration / heating capacity of the heat pump unit 3 to the period - cumulative power consumption within the selected period, used to measure the total period working (refrigeration / heating) performance of the heat pump unit 3 within the selected period.

[0082] Working principle: The pressure gauges 8 and temperature sensors 9 respectively provided on the return water pipeline 4 and the supply water pipeline 5 can measure the water temperature and water pressure values at the inlet end and outlet end of the heat pump unit 3 respectively, so as to measure the return water temperature and the supply water temperature. The refrigeration capacity and heating capacity in the instantaneous refrigeration / heating capacity and period - cumulative refrigeration / heating capacity of the present disclosure are calculated separately, and are all used to evaluate the relevant performance of the heat pump unit 3. Both the refrigeration capacity and the heating capacity are positive numbers and are counted separately, representing the quantitative values of the refrigeration work and heating work completed by the heat pump unit 3 after consuming the corresponding electric energy respectively. The period - cumulative refrigeration / heating capacity represents the sum of all instantaneous refrigeration capacities and instantaneous heating capacities within the selected period. For example, when calculating the period - cumulative refrigeration / heating capacity in a quarter, assuming that two months are in the heating mode and the other month is in the refrigeration mode, then the period - cumulative refrigeration / heating capacity = the cumulative sum of all instantaneous heating capacities in two months + the cumulative sum of all instantaneous refrigeration capacities in one month. As for the instantaneous refrigeration / heating capacity, it actually represents the instantaneous refrigeration quantity value in the refrigeration mode and the instantaneous heating quantity value in the heating mode.

[0083] In the refrigeration mode, the instantaneous refrigeration / heating capacity actually represents the instantaneous refrigeration capacity, and the cycle-accumulated refrigeration / heating capacity actually represents the accumulated refrigeration capacity within the selected cycle. The modular turnover energy device forms a return water - cooling - water supply circulation path between the return water pipe 4, the water supply pipe 5 and the external usage equipment, with the return water temperature >= the water supply temperature. The circulation water pump 14 installed in the return water pipe 4 provides power for the return water, continuously receives the relatively warm water to be cooled from the external usage equipment, and transports it to the heat pump unit 3 for cooling. The water supply pipe 5 continuously transports the relatively cold cooled water discharged from the water outlet end of the heat pump unit 3 to the external usage equipment.

[0084] In the heating mode, the instantaneous refrigeration / heating capacity actually represents the instantaneous heating capacity, and the cycle-accumulated refrigeration / heating capacity actually represents the cycle-accumulated heating capacity within the selected cycle. The modular turnover energy device forms a supply and return water - heating - water supply circulation path between the return water pipe 4, the water supply pipe 5 and the external usage equipment, with the return water temperature < the water supply temperature. The circulation water pump 14 installed in the return water pipe 4 provides power for the return water, continuously receives the relatively cold water to be heated from the external usage equipment, and transports it to the heat pump unit 3 for heating. The water supply pipe 5 continuously transports the relatively warm heated water discharged from the water outlet end of the heat pump unit 3 to the external usage equipment. Pressure gauges 8 and temperature sensors 9 respectively installed on the return water pipe 4 and the water supply pipe 5 can measure the water temperature and water pressure values at the water inlet end and the water outlet end of the heat pump unit 3 respectively.

[0085] In particular, the electromagnetic flowmeter 11 adopts a full-bore type remote transmission electromagnetic flowmeter, which can accurately measure the instantaneous flow value of the cooling water provided by the heat pump unit 3 to the outside. Pressure sensors 17 are respectively connected in series at the water inlet end and the water outlet end of the circulation water pump 14, which can respectively measure the pressure values representing the water inlet end and the water outlet end of the circulation water pump 14. Then, by measuring the operating power and efficiency of the electric motor equipped for the circulation water pump 14 through the intelligent electricity meter on the intelligent control cabinet 6, the instantaneous efficiency Effp of the water pump operation can be calculated. In summary, by means of the above technical solutions of the present disclosure, the present disclosure has a simple structure, convenient operation, and easy expansion. It can be skid-mounted on a steel frame through a heat pump unit, a hydraulic module assembly, a module box body, etc., and equipment vibration damping bases and pipeline supports can be configured. Through a highly compact integrated design, the space occupation is significantly reduced, and the space utilization rate is improved. The external dimensions of the modular device can be designed to be 6m (L) × 3m (W) × 3m (H), etc., and it supports road transportation and hoisting and relocation. The present disclosure can be pre-installed and debugged in the factory. Only hoisting and splicing and pipeline docking are required on site. All pipelines, valves, sensors, etc. of the device can adopt a "plug and play" interface design. The on-site installation time is shortened by more than 70% compared with traditional projects. The standardized modules reduce the on-site welding and debugging workload, and the construction risk is reduced by 40%, greatly reducing the construction complexity and labor cost. The modular architecture of the present disclosure supports expansion to meet the personalized energy consumption needs of projects of different scales. The "non-destructive disassembly-reassembly" technology ensures that the performance of core components such as heat pump units, hydraulic modules, and intelligent control cabinets does not decay after multiple disassembly and assembly, and can be reused throughout the life cycle.

[0086] The above are only the preferred embodiments of the present disclosure, and are not intended to limit the present disclosure. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present disclosure shall be included in the protection scope of the present disclosure.

Claims

1. A modular turnover energy device, characterized in that: It includes a heat pump unit (3), a water conservancy module, and an intelligent control cabinet (6) that cooperate with each other; The water conservancy module comprises a return water pipeline (4) and a water supply pipeline (5); one end of the return water pipeline (4) is connected to the water inlet end of the heat pump unit (3), and one end of the water supply pipeline (5) is connected to the water outlet end of the heat pump unit (3); the other end of the return water pipeline (4) and the other end of the water supply pipeline (5) are respectively used to connect to the water outlet end and the water inlet end of external equipment; The return water pipeline (4) is provided with a micro-resistance slow-closing check valve (13), a circulating water pump (14) and a filter (16) which are connected in series with each other; the water outlet of the circulating water pump (14) is connected to the micro-resistance slow-closing check valve (13), and the water inlet of the circulating water pump (14) is connected to the filter (16); the water inlet and outlet of the circulating water pump (14) are respectively connected in series with a pressure sensor (17); The water return pipeline (4) and the water supply pipeline (5) are respectively provided with at least one full-diameter eccentric hemispherical valve (12) that can be used as a shut-off valve; The return water pipeline (4) and the water supply pipeline (5) are respectively provided with a pressure gauge (8) and a temperature sensor (9) corresponding to the heat pump unit (3); The water outlet of the heat pump unit (3) is further provided with an electromagnetic flow meter (11) corresponding to the heat pump unit (3); The heat pump unit (3), the pressure gauge (8), the temperature sensor (9), the electromagnetic flowmeter (11), the micro-resistance slow-closing check valve (13), the circulating water pump (14), and the pressure sensor (17) are respectively connected to the intelligent control cabinet (6) for communication; The intelligent control cabinet (6) comprises an intelligent electric meter and a display screen. The intelligent electric meter is communicatively connected to the motor provided to the circulating water pump (14). The heat pump unit (3) is also provided with a unit electric meter.

2. The modular turnover energy device according to claim 1, characterized in that: The heat pump unit (3), water conservancy module, and intelligent control cabinet (6) are respectively mounted on the frame (1); The frame (1) is also provided with a module box (18) for protecting the water return pipeline (4), the water supply pipeline (5), and the intelligent control cabinet (6).

3. The modular turnover energy device according to claim 2, characterized in that: The top of the frame (1) is provided with a plurality of lifting ears (2); The frame (1) is provided with a pipe bracket (10) capable of supporting and fixing the return pipe (4) and the water supply pipe (5); The frame (1) is a steel frame.

4. The modular turnover energy device according to claim 1, characterized in that: The water inlet and the water outlet of the heat pump unit (3) are respectively connected to the return pipe (4) and the water supply pipe (5) via long radius elbows (7); The electromagnetic flowmeter (11) is a full-bore remote electromagnetic flowmeter without any straight pipe section installation length requirement. The electromagnetic flowmeter (11) is located on the straight pipe section between the corresponding long radius elbow (7) and the full-bore eccentric hemispherical valve (12).

5. The modular turnover energy device according to claim 1, characterized in that: The water return pipeline (4) comprises a water return front trunk line and a water return rear trunk line, wherein the water return front trunk line is connected to the water outlet of an external device; The front water return main line is divided into at least two water return branches of the same specification and connected in parallel, and each water return branch is independently provided with a corresponding micro-resistance slow-closing check valve (13), a circulating water pump (14) and a filter (16); All the water return branches converge into the water return rear trunk line, and the water return rear trunk line is connected to the water inlet end of the heat pump unit (3).

6. The modular turnover energy device according to claim 1 or 5, characterized in that: The connection between the micro-resistance slow-closing check valve (13) and the circulating water pump (14), and the connection between the circulating water pump (14) and the filter (16) are respectively realized by using a rubber flexible joint (15) to achieve a flexible connection; A pressure sensor (17) is respectively arranged between the micro-resistance slow-closing check valve (13) and the circulating water pump (14) and between the circulating water pump (14) and the filter (16); The filter (16) is a Y-type filter; The heat pump unit (3) is an air source heat pump unit.

7. The modular turnover energy device according to claim 1, characterized in that: The inner cavity of the full-diameter eccentric hemispherical valve (12), the inner diameter of the return pipe (4), and the inner diameter of the water supply pipe (5) are all consistent in size, so as to achieve a fluid passage without necking, thereby minimizing turbulence and local resistance losses; The full-diameter eccentric hemispherical valve (12) adopts an eccentric valve core design, and the valve core and the valve seat have no frictional contact when the valve is opened and closed.

8. The modular turnover energy device according to claim 1, characterized in that: The micro-resistance slow-closing check valve (13) adopts a low-resistance valve disc structure; The micro-resistance slow-closing check valve (13) comprises a slow-closing device, which is a hydraulic buffer locking mechanism with a built-in damping oil cylinder, and controls the closing speed of the valve disc by adjusting the oil circuit flow; The micro-resistance slow-closing check valve (13) adopts a bidirectional sealing technology: the valve disc is fully open during forward flow, and soft sealing is achieved through the slow-closing device during reverse flow.

9. The modular turnover energy device according to claim 1, characterized in that: The intelligent control cabinet (6) respectively obtains the water pump water inlet pressure value P1, the water pump water outlet pressure value P2, the water supply instantaneous flow value Q, the water pump equipped motor power Power and the water pump equipped motor efficiency Effm, and calculates the water pump operation instantaneous efficiency Effp through formula 1, and displays the water pump water inlet pressure value P1, the water pump water outlet pressure value P2 and the water pump operation instantaneous efficiency Effp through the display screen of the intelligent control cabinet (6); Effp = [(P2-P1) × Q] / (2298 × Power × Effm); (Formula 1); P1: represents the pressure value at the water inlet end of the circulating water pump (14), measured by the pressure sensor (17) corresponding to the water inlet end of the circulating water pump (14), in units of psi; P2: represents the pressure value at the outlet of the circulating water pump (14), measured by the pressure sensor (17) corresponding to the outlet of the circulating water pump (14), in psi; Q: represents the instantaneous flow value of the water supply pipeline (5), measured by the electromagnetic flowmeter (11), in gpm; Power: represents the operating power of the motor used for the circulating water pump (14), measured by the smart meter installed on the smart control cabinet (6), in KW; Effm: represents the efficiency of the motor used for the circulating water pump (14), which is measured by an intelligent electric meter installed on the intelligent control cabinet (6); Effp: represents the instantaneous efficiency of the circulating water pump (14); 2298: Fixed constant for converting U.S. power units to kilowatts.

10. The modular turnover energy device according to claim 1, characterized in that: The intelligent control cabinet (6) obtains the return water temperature, water supply temperature, instantaneous water supply flow value, and instantaneous power consumption of the heat pump unit (3), and calculates the instantaneous cooling / heating capacity, the periodic cumulative cooling / heating capacity, the instantaneous coefficient of performance COP, the periodic cumulative power consumption, and the periodic coefficient of performance COPa through the following formulas, and displays them on the display screen of the intelligent control cabinet (6); Supply and return water temperature difference = |return water temperature - supply water temperature|; (Formula 2); Instantaneous cooling / heating capacity = C × instantaneous water supply flow value × supply and return water temperature difference; (Formula 3); Instantaneous coefficient of performance COP = (instantaneous cooling / heating capacity) ÷ instantaneous power consumption; (Formula 4); Cycle cumulative cooling / heating capacity = Σ(instantaneous cooling / heating capacity); (Formula 5); Periodic cumulative power consumption = Σ instantaneous power consumption; (Formula 6); Cycle performance coefficient COPa = (cycle cumulative cooling / heating capacity) ÷ cycle cumulative power consumption; (Formula 7); Where: C represents the specific heat capacity of water and is a constant; Return water temperature: represents the water temperature at the water inlet end of the heat pump unit (3), that is, the water temperature of the return water to be cooled or heated flowing into the heat pump unit (3), measured by the temperature sensor (9) provided on the return water pipeline (4); Water supply temperature: represents the water temperature at the water outlet of the heat pump unit (3) - that is, the water temperature measured after the water is cooled or heated by the heat pump unit (3), measured by the temperature sensor (9) provided on the water supply pipeline (5); Supply and return water temperature difference: the absolute value of the difference between the return water temperature and the supply water temperature; in cooling mode, the return water temperature>=supply water temperature; in heating mode, the return water temperature<supply water temperature; Water supply instantaneous flow value: represents the instantaneous flow value in the water supply pipeline (5), measured by the electromagnetic flowmeter (11), in gpm; Instantaneous cooling / heating capacity: represents the instantaneous cooling capacity or heating capacity completed in the process of the heat pump unit (3) receiving return water and cooling external water supply; Instantaneous power consumption: the value of the instantaneous power consumption of the heat pump unit (3), measured by the unit's electric meter; Instantaneous coefficient of performance COP: the ratio of the instantaneous cooling / heating capacity and the instantaneous power consumption of the heat pump unit (3), used to measure the instantaneous working performance of the heat pump unit (3); Periodic cumulative cooling / heating capacity: the cumulative value of all instantaneous cooling / heating capacity of the heat pump unit (3) within a selected period, where the selected period is between 1 and 12 months; Periodic cumulative power consumption: the cumulative value of all instantaneous power consumption of the heat pump unit (3) within a selected period, where the selected period is between 1 and 12 months; Cycle performance coefficient COPa: the ratio of the cycle cumulative cooling / heating amount and the cycle cumulative power consumption of the heat pump unit (3) in the selected cycle, which is used to measure the cycle total working performance of the heat pump unit (3) in the selected cycle.

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