A multi-source heating and cooling system for computer rooms

Abstract

The present invention provides a multi-form cold and heat source machine room heating integration system, including a multi-form cold and heat source integrated machine room, wherein the cold and heat source integrated machine room is connected to an external ground source landfill, a cooling tower, a water source multi-split outdoor unit, and a water supply pipe for domestic hot water through an external pipe for cooling and heating, and the cold and heat source integrated machine room includes an integrated ground source heat pump unit, a phase change heat accumulator, a plate heat exchanger, a domestic hot water tank, a water collector, and a water distributor, wherein the heat pump return pipe of the integrated ground source heat pump unit is connected to the water collector, and the heat pump supply pipe of the integrated ground source heat pump unit is connected to the water distributor. The cold and heat source integrated machine room of the present invention uses an integrated modular design to realize multiple energy supply modes of cooling, heating, and domestic hot water. The equipment connections are orderly and reasonable, which facilitates construction and avoids unreasonable layout in design and construction.

Description

Technical Field

[0001] The present invention relates to the technical field of central air conditioning, and in particular to a multi-form cold and heat source machine room heating integrated system. Background Art

[0002] A geothermal heat pump system is a highly efficient and energy-saving air conditioning system that utilizes shallow geothermal resources (also known as geothermal energy, which includes groundwater, soil, or surface water) for both heating and cooling. By inputting a small amount of high-quality energy (such as electricity), it transfers low-temperature heat energy to high-temperature heat energy. The geothermal energy serves as the heat source for heating in winter and the cold source for cooling in summer. In winter, heat from the geothermal energy is extracted, raised in temperature, and used to heat the interior of the home. In summer, the heat is extracted from the interior and released back into the geothermal energy source.

[0003] A water-source VRF system combines water-source heat pump technology with an air-source VRF system. Similar to water-source heat pump systems, the cooling and heating sources utilize water as the energy transport medium, while the indoor heating and cooling systems utilize refrigerant as the energy transport medium. A water-source variable-frequency VRF system combines the advantages of both air-cooled variable-frequency VRF systems and water-source ground-source heat pumps. It offers the flexible variable load handling, high part-load energy efficiency, and flexible configuration of VRF systems, combined with the high energy efficiency and stable operation of water-source ground-source heat pumps, significantly improving the overall operational efficiency of the units.

[0004] Phase change thermal storage is a high-tech energy storage technology based on phase change energy storage materials. The heat storage density of phase change thermal storage is 5 to 10 times or even higher than that of sensible heat storage. Due to its advantages of constant temperature and high heat storage density, phase change thermal storage technology has been widely studied and is particularly suitable for conditions where the heat supply is discontinuous or the supply and demand are not coordinated. As an effective means of resolving the contradiction between the time and space of energy supply, the phase change thermal storage system is one of the important ways to improve energy utilization. Thermal storage technology is an important technology for improving energy utilization efficiency and protecting the environment. It can be used to resolve the contradiction between the supply and demand of thermal energy. It has broad application prospects in the fields of solar energy utilization, electricity "peak shifting and valley filling", waste heat and waste heat recovery, energy saving in industrial and civil buildings and air conditioning, and is a research hotspot worldwide.

[0005] Currently, all design companies or EPC general contracting companies implement a one-project-one-design approach. The air-conditioning room of each project has to be redesigned, which is a heavy workload and time-consuming. Moreover, under the pressure of the owner, designers produce design drawings under limited time and often only consider the design within the scope allowed by the regulations, without considering the optimization, aesthetics and practicality of the design scheme. Ultimately, the installation cannot be simplified and a large amount of manpower and material resources are consumed. Summary of the Invention

[0006] The technical problem solved by the present invention is to provide a multi-form cold and heat source machine room heating integrated system to solve the problems raised in the above background technology.

[0007] The technical problem solved by the present invention is achieved by adopting the following technical solutions: a multi-form cold and heat source machine room heating integrated system, including a multi-form cold and heat source integrated machine room, the cold and heat source integrated machine room is connected to the external ground source landfill, cooling tower, water source multi-split outdoor unit and domestic hot water supply pipe through an external pipeline for cooling and heating; the cold and heat source integrated machine room includes an integrated ground source heat pump unit, a phase change heat storage, a plate heat exchanger, a domestic hot water tank, a water collector and a water distributor, the heat pump return pipe of the integrated ground source heat pump unit is connected to the water collector, the integrated ground source heat pump The heat pump water supply pipe of the group is connected to the water distributor; the water supply end of the unit evaporator in the integrated ground source heat pump unit is connected to the water collector, and the return water end of the unit evaporator is connected to the water distributor, the water supply end of the unit condenser in the integrated ground source heat pump unit is connected to the water inlet end of the primary side of the plate heat exchanger, and the return water end of the unit condenser is connected to the water outlet end of the primary side of the plate heat exchanger, and the water supply end and water outlet end of the secondary side of the plate heat exchanger are connected to the domestic hot water tank; the water collector and water distributor are connected to external pipes for cooling and heating; the tap water pipe in the cold and heat source integrated machine room introduces water source.

[0008] A further solution of the present invention is: the cold and heat source integrated machine room is provided with a first return pipe and a first water supply pipe connected to the ground source landfill; the cold and heat source integrated machine room is provided with a second return pipe and a second water supply pipe connected to the cooling tower; the cold and heat source integrated machine room is provided with a third return pipe and a third water supply pipe connected to the water source multi-split outdoor unit; the cold and heat source integrated machine room is provided with a domestic hot water tank connected to the domestic hot water supply pipe.

[0009] A further solution of the present invention is: the first water supply pipe and the second water supply pipe are connected to the water distributor, and the first water return pipe and the second water return pipe are connected to the water collector.

[0010] A further solution of the present invention is that a pressure difference bypass regulating valve is provided between the water collector and the water distributor.

[0011] A further solution of the present invention is: the third water supply pipe is connected to the air-conditioning side circulating water pump, and the third return pipe is connected to the water distributor; the air-conditioning side circulating water pump is connected to the corresponding microcrystalline bypass electronic water treatment instrument, and the microcrystalline bypass electronic water treatment instrument is connected to the hot and cold water pump, and the hot and cold water pump is connected to the phase change heat accumulator.

[0012] A further solution of the present invention is that the phase change return pipe of the phase change heat accumulator is connected to the water collector, and the phase change water supply pipe of the phase change heat accumulator is connected to the water distributor.

[0013] A further embodiment of the present invention is as follows: the phase-change heat accumulator is connected to a heat storage water pump, the return water end of the phase-change heat accumulator is connected to the water inlet end of the electric auxiliary heater, and the water outlet end of the electric auxiliary heater is connected to the heat storage water pump. The electric auxiliary heater serves as a backup supplementary heat source for the system.

[0014] A further solution of the present invention is: the tap water pipe is connected to the fully automatic softened water treatment equipment, the other end of the fully automatic softened water treatment equipment is connected to the stainless steel softened water tank, and the other end of the stainless steel softened water tank is connected to the constant pressure device.

[0015] A further solution of the present invention is that the plate heat exchanger is connected to a domestic hot water tank, and a domestic hot water pump is provided between the plate heat exchanger and the domestic hot water tank.

[0016] Compared with existing technologies, the present invention offers the following advantages: The integrated cold and heat source room utilizes an integrated modular design to achieve multiple energy supply modes: cooling, heating, and domestic hot water. The equipment connections are organized and rational, facilitating construction and avoiding illogical layouts during design and construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the plane layout of the present invention;

[0018] Figure 2 Schematic diagram of the water collector of the present invention;

[0019] Figure 3 Schematic diagram of the water separator of the present invention;

[0020] Figure 4 It is a schematic diagram of the process of the present invention.

[0021] Numbers in the figure: cold and heat source integrated machine room 1, integrated ground source heat pump unit 2, plate heat exchanger 3, hot water storage pump 5, phase change heat accumulator 6, electric auxiliary heater 7, circulating water pump 8, microcrystalline bypass electronic water treatment instrument 9, constant pressure device 10, stainless steel softened water tank 11, fully automatic softened water treatment equipment 12, water collector 13, water distributor 14, pressure difference bypass regulating valve 15, first return water pipe 16, second return water pipe 17, phase change return water pipe 18, heat pump return water pipe 19, first water supply pipe 20, second water supply pipe 21, heat pump water supply pipe 22, phase change water supply pipe 23, domestic hot water tank 24, third water supply pipe 25, third return water pipe 26, tap water pipe 27. DETAILED DESCRIPTION

[0022] In order to make the technical means for realizing the present invention, the creative features, the objectives and the effects thereof easier to understand, the present invention is further described below with reference to specific illustrations.

[0023] like Figures 1 to 4 As shown,

[0024] This embodiment provides a multi-form cold and heat source room heating integration system, including a multi-form cold and heat source integrated room 1, the cold and heat source integrated room 1 is connected to the external ground source landfill, cooling tower, water source multi-split outdoor unit and domestic hot water supply pipe through an external pipeline for cooling and heating; the cold and heat source integrated room 1 includes an integrated ground source heat pump unit 2, a phase change heat accumulator 6, a plate heat exchanger 3, a domestic hot water tank 24, a water collector 13 and a water distributor 14, the heat pump return pipe 19 of the integrated ground source heat pump unit 2 is connected to the water collector 13, and the heat pump supply pipe 22 of the integrated ground source heat pump unit 2 is connected to the water collector 13. Connected to the water distributor 14; the water supply end of the unit evaporator in the integrated ground source heat pump unit 2 is connected to the water collector 13, and the return water end of the unit evaporator is connected to the water distributor, the water supply end of the unit condenser in the integrated ground source heat pump unit 2 is connected to the water inlet end of the primary side of the plate heat exchanger 3, and the return water end of the unit condenser is connected to the water outlet end of the primary side of the plate heat exchanger 3, and the water supply end and the water outlet end of the secondary side of the plate heat exchanger 3 are connected to the domestic hot water tank 24; the water collector 13 and the water distributor 14 are connected to external pipes for cooling and heating; the tap water pipe 27 of the cold and heat source integrated machine room 1 introduces water.

[0025] In this embodiment, the cold and heat source integrated machine room 1 is provided with a first return pipe 16 and a first water supply pipe 20 connected to the ground source landfill; the cold and heat source integrated machine room 1 is provided with a second return pipe 17 and a second water supply pipe 21 connected to the cooling tower; the cold and heat source integrated machine room 1 is provided with a third return pipe 26 and a third water supply pipe 25 connected to the water source multi-split outdoor unit; the cold and heat source integrated machine room 1 is provided with a domestic hot water tank 24 connected to the domestic hot water supply pipe.

[0026] In this embodiment, the first water supply pipe 20 and the second water supply pipe 21 are connected to the water distributor 14 , and the first water return pipe 16 and the second water return pipe 17 are connected to the water collector 13 .

[0027] In this embodiment, a pressure difference bypass regulating valve 15 is provided between the water collector 13 and the water distributor 14 .

[0028] In this embodiment, the third water supply pipe 25 is connected to the air-conditioning side circulating water pump 8, and the third return pipe 26 is connected to the water distributor 14; the air-conditioning side circulating water pump 8 is connected to the corresponding microcrystalline bypass electronic water treatment instrument 9, and the microcrystalline bypass electronic water treatment instrument is connected to the hot and cold water pump, and the water is treated by the microcrystalline bypass electronic water treatment instrument using the pressure difference between the inlet and outlet of the water pump, and the hot and cold water pump is connected to the phase change heat accumulator 6.

[0029] In this embodiment, the phase change return pipe 18 of the phase change heat accumulator 6 is connected to the water collector 13 , and the phase change water supply pipe 23 of the phase change heat accumulator is connected to the water distributor 14 .

[0030] In this embodiment, the phase-change heat accumulator 6 is connected to the hot water storage pump 5, the return water end of the phase-change heat accumulator 6 is connected to the water inlet end of the electric auxiliary heater 7, and the water outlet end of the electric auxiliary heater 7 is connected to the hot water storage pump 5. The electric auxiliary heater 7 serves as a backup supplementary heat source for the system. Specifically, when the phase-change heat accumulator 6 is in heat storage operation, the hot water provided by the electric auxiliary heater 7 enters the phase-change heat accumulator 6 via the hot water storage pump 5; when releasing heat, the water supply of the phase-change heat accumulator 6 is mixed with the water supply of other systems through the water collector 13, and then sent to each multi-connected main unit and the integrated ground source heat pump unit 2 through the circulating water pump 8; the return water enters the return water end of the phase-change heat accumulator 6 through the water distributor 14.

[0031] In this embodiment, the tap water pipe 27 is connected to the fully automatic softened water treatment equipment 12, the other end of the fully automatic softened water treatment equipment 12 is connected to the stainless steel softened water tank 11, and the other end of the stainless steel softened water tank 11 is connected to the constant pressure device 10. The water supply pump of the constant pressure device 10 is used to add water to the constant pressure tank for constant pressure, which is used to replenish water in the system.

[0032] In this embodiment, the plate heat exchanger 3 is connected to the domestic hot water tank 24, and a domestic hot water pump 4 is provided between the plate heat exchanger 3 and the domestic hot water tank 24. The outlet water of the primary side of the plate heat exchanger enters the water inlet end of the primary side of the plate heat exchanger after heat exchange through the integrated ground source heat pump unit. After the heated water enters the domestic hot water tank 24, it is supplied to the domestic hot water use point by the water supply pipe of the domestic hot water tank 24.

[0033] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-type cold and heat source machine room integrated heating system, comprising a multi-type cold and heat source integrated machine room, wherein the cold and heat source integrated machine room is connected to an external ground source landfill, a cooling tower, a water source multi-split outdoor unit, and a domestic hot water supply pipe via external pipes for cooling and heating, and is characterized by: The cold and heat source integrated machine room includes an integrated ground source heat pump unit, a phase change heat accumulator, a plate heat exchanger, a domestic hot water tank, a water collector and a water distributor. The heat pump return pipe of the integrated ground source heat pump unit is connected to the water collector, and the heat pump water supply pipe of the integrated ground source heat pump unit is connected to the water distributor; the water supply end of the unit evaporator in the integrated ground source heat pump unit is connected to the water collector, and the return water end of the unit evaporator is connected to the water distributor. The water supply end of the unit condenser in the integrated ground source heat pump unit is connected to the water inlet end of the primary side of the plate heat exchanger, the return water end of the unit condenser is connected to the water outlet end of the primary side of the plate heat exchanger, and the water supply end and the water outlet end of the secondary side of the plate heat exchanger are connected to the domestic hot water tank; the water collector and the water distributor are connected to external pipes for cooling and heating; the tap water pipe in the cold and heat source integrated machine room introduces water source; The cold and heat source integrated machine room is provided with a first return pipe and a first water supply pipe connected to the ground source landfill; the cold and heat source integrated machine room is provided with a second return pipe and a second water supply pipe connected to the cooling tower; the cold and heat source integrated machine room is provided with a third return pipe and a third water supply pipe connected to the outdoor unit of the water source multi-split unit; the cold and heat source integrated machine room is provided with a domestic hot water tank connected to the domestic hot water supply pipe; the first and second water supply pipes are connected to the water distributor, and the first and second return pipes are connected to the water collector; a pressure differential bypass regulating valve is provided between the water collector and the water distributor; The phase change return pipe of the phase change heat accumulator is connected to the water collector, and the phase change water supply pipe of the phase change heat accumulator is connected to the water distributor; The phase change heat accumulator is connected to the hot water storage pump, the return water end of the phase change heat accumulator is connected to the water inlet end of the electric auxiliary heater, the water outlet end of the electric auxiliary heater is connected to the hot water storage pump, and the electric auxiliary heater serves as a backup supplementary heat source for the system.

2. The multi-mode cold and heat source computer room heating integrated system according to claim 1 is characterized by: The third water supply pipe is connected to the air-conditioning side circulating water pump, and the third return pipe is connected to the water distributor; the air-conditioning side circulating water pump is connected to the corresponding microcrystalline bypass electronic water treatment instrument, and the microcrystalline bypass electronic water treatment instrument is connected to the hot and cold water pump, and the hot and cold water pump is connected to the phase change heat accumulator.

3. The multi-mode cold and heat source integrated heating system for a computer room according to claim 1 is characterized by: The tap water pipe is connected to the full-automatic softened water treatment equipment, the other end of the full-automatic softened water treatment equipment is connected to the stainless steel softened water tank, and the other end of the stainless steel softened water tank is connected to the constant pressure device.

4. The multi-mode cold and heat source integrated heating system for a computer room according to claim 1, characterized in that: The plate heat exchanger is connected to the domestic hot water tank, and a domestic hot water pump is provided between the plate heat exchanger and the domestic hot water tank.

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