CN210135661U - Central air conditioning economizer system - Google Patents
Central air conditioning economizer system Download PDFInfo
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- CN210135661U CN210135661U CN201921090231.0U CN201921090231U CN210135661U CN 210135661 U CN210135661 U CN 210135661U CN 201921090231 U CN201921090231 U CN 201921090231U CN 210135661 U CN210135661 U CN 210135661U
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Abstract
A central air-conditioning energy-saving system comprises a lithium bromide direct-fired unit, a magnetic suspension electricity-saving air conditioner and a transmission and distribution system; the lithium bromide direct-combustion unit is connected with the magnetic suspension electricity-saving air conditioner in parallel, and water outlets of the lithium bromide direct-combustion unit and the magnetic suspension electricity-saving air conditioner are connected with an energy consumption end through pipelines and used for providing cold water or hot water for the energy consumption end; the tail end of the energy utilization device is connected with the lithium bromide direct-fired unit and a water return port of the magnetic suspension electricity-saving air conditioner through a transmission and distribution system. The utility model can realize the utilization of multiple energy sources and improve the safe reliability of the system operation; on the other hand, the structure is compact, and the initial investment is saved.
Description
Technical Field
The utility model relates to a central air conditioning system's energy-conserving field, especially a central air conditioning economizer system that double mode combination utilized.
Background
With the acceleration of urbanization process and the improvement of quality of life of people, the proportion of building energy consumption to total social energy consumption is continuously increased, and the heating, ventilating and air conditioning part is the largest part of the building energy consumption ratio. The refrigeration host is a core component of energy consumption of the air conditioning system, and the distribution is a crucial part of the refrigeration host. The traditional central air-conditioning design adopts a mode of electric refrigeration and boiler heating, both the refrigeration and the heating are arranged for standby, the initial investment is increased, and the energy consumption is single and unreliable; the configuration of the transmission and distribution system usually amplifies the margin, which is not matched with the actual operation, and causes energy waste; the whole system is dispersed, and the occupied area is large; each device is purchased independently, so that the matching of the devices cannot be guaranteed, and the overall performance of the air conditioner is greatly reduced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the above-mentioned not enough of prior art and providing a central air conditioning economizer system that multipotency source is complementary, double mode energy-conserving operation, compact structure, reduction initial investment.
The technical scheme of the utility model is that: a central air-conditioning energy-saving system comprises a lithium bromide direct-fired unit, a magnetic suspension electricity-saving air conditioner and a transmission and distribution system; the lithium bromide direct-combustion unit is connected with the magnetic suspension electricity-saving air conditioner in parallel, and water outlets of the lithium bromide direct-combustion unit and the magnetic suspension electricity-saving air conditioner are connected with an energy consumption end through pipelines and used for providing cold water or hot water for the energy consumption end; the tail end of the energy utilization system is connected with a lithium bromide direct-fired unit and a water return port of the magnetic suspension electricity-saving air conditioner through a transmission and distribution system; the water outlets of the lithium bromide direct-fired unit and each condenser of the magnetic suspension electricity-saving air conditioner are connected with a cooling tower, and the water outlet of the cooling tower is connected with the water return port of the condenser through a transmission and distribution system.
Furthermore, the water outlets of the lithium bromide direct-fired unit and each evaporator of the magnetic suspension electricity-saving air conditioner are connected with an energy consumption tail end, and the water outlets of the energy consumption tail end are connected with a water return port of the evaporator through a transmission and distribution system. The energy consumption end can be a fan coil, a combined air cabinet and the like.
Furthermore, the water outlet of the generator of the lithium bromide direct-fired unit is connected with the tail end of the sanitary hot water through the plate heat exchanger, and the water outlet of the plate heat exchanger is connected with the water return port of the generator through the transmission and distribution system.
Furthermore, the transmission and distribution system comprises a non-return header, a filtering header and a water pump, wherein a non-return valve of the non-return header is arranged at the water return ports of the lithium bromide direct-fired unit and the magnetic suspension electricity-saving air conditioner.
Further, the non-return header and/or the filtering header comprise a cylinder body, and the diameter of the cylinder body is not less than 2 times of the diameter of the connecting pipe, so that the system resistance is reduced.
Further, the water pump comprises a main water pump and a standby water pump, and single/double pump switching can be performed.
Furthermore, the lithium bromide direct-combustion unit and the magnetic suspension electricity-saving air conditioner are respectively connected with a transmission and distribution system or share one transmission and distribution system.
Furthermore, the transmission and distribution system comprises at least two sets of integrally arranged non-return header tanks, a filtering header tank and a water pump.
Further, the driving energy of the lithium bromide direct-combustion unit is natural gas, petroleum or waste heat; the driving energy of the magnetic suspension electricity-saving air conditioner is electric power.
The utility model has the advantages that:
(1) by combining the lithium bromide direct-fired unit and the magnetic suspension electricity-saving air conditioner, the multi-energy utilization can be realized, the safety and reliability of the system operation are improved, and compared with the refrigeration of a pure lithium bromide direct-fired machine, the system efficiency can be improved, and the energy consumption is reduced; compared with a pure electric air conditioner, the electric air conditioner can reduce the installed power distribution capacity and relieve the power utilization pressure, and is flexible to select;
(2) a transmission and distribution system is adopted, and the transmission and distribution system comprises at least two groups of non-return collection boxes, filtering collection boxes and water pumps which are integrally arranged, so that the structure is compact, and the occupied space is saved; the non-return collection box and the filtering collection box can reduce the system resistance and reduce the transmission and distribution energy consumption by increasing the cylinder; compared with the traditional central air-conditioning design, the air-conditioning system saves initial investment, saves running cost and realizes energy conservation in the whole life cycle.
Drawings
Fig. 1 is a schematic diagram of a simple structure of an embodiment of the present invention;
fig. 2 is a schematic diagram of the distribution of the apparatus according to the embodiment of the present invention;
fig. 3 is a top view of the embodiment shown in fig. 2.
Detailed Description
The invention will be described in further detail with reference to the drawings and specific examples.
As shown in fig. 1 to 3: a central air-conditioning energy-saving system comprises a lithium bromide direct-combustion unit 1, a magnetic suspension electricity-saving air conditioner 2 and a transmission and distribution system 3, wherein the lithium bromide direct-combustion unit takes natural gas, petroleum and waste heat as driving energy, and the magnetic suspension electricity-saving air conditioner 5 takes electric power as driving energy. The transmission and distribution system 3 comprises a transmission and distribution system 1# and a transmission and distribution system 2#, and the transmission and distribution system 1# and the transmission and distribution system 2# are of an integrated or split structure. In the embodiment, the transmission and distribution system 1# and the transmission and distribution system 2# are preferably separately arranged and are respectively connected with the lithium bromide direct-combustion unit 1 and the magnetic suspension electricity-saving air conditioner 2.
Wherein, transmission and distribution system 1# and transmission and distribution system 2# both include at least one set of filtration header 31, non return header 32 and water pump 33. The transmission and distribution system 1# of the embodiment comprises three groups of integrally arranged filtering collection tanks 31, non-return collection tanks 32 and water pumps 33; transmission and distribution system 2# includes two sets of filtration header 31, non return header 32 and the water pump 33 that the integration set up, through the integrated design for compact structure reduces area.
Wherein the filtering header 31 adopts a large cylinder structure, the diameter of the cylinder is not less than 2 times of the diameter of the connecting pipe, thereby reducing the system resistance, increasing the filtering area and the water filtering treatment capacity, reducing the turbulence, reducing the system resistance and realizing the automatic sewage discharge function. The non-return header 32 is characterized by large water flow and small resistance, and a non-return valve is arranged at the water return port of the heat exchanger, so that water flow backflushing and water hammer noise are effectively prevented. Two water pumps 33 are preferably adopted, one is used as a main water pump, the other is used as a standby water pump, and when the model is selected, the system can be accurately matched, so that the flow and the lift are closely matched; through the combination of the double pumps, the running mode can be automatically adjusted according to the load condition of the tail end, and the single/double pumps are switched to realize energy-saving running.
In this embodiment, the water outlet of the generator of the lithium bromide direct-fired unit 1 is connected to the end of the sanitary hot water through the plate heat exchanger 4, and the water outlet of the plate heat exchanger 4 is connected to the water return port of the generator through the filtering header 31, the water pump 33 and the non-return header 32 on the first branch of the transmission and distribution system 1# in sequence. The water outlet of the condenser is connected with a cooling tower 5, and the water outlet of the cooling tower 5 is connected with the water return port of the condenser through a filtering collection box, a water pump and a non-return collection box on a No. 1 second branch of the transmission and distribution system in sequence. The water outlet of the evaporator is connected with the energy tail end 6, and the water outlet of the energy tail end 6 is connected with the water return port of the evaporator sequentially through the filtering collection box, the water pump and the non-return collection box on the No. 1 third branch of the transmission and distribution system.
The water outlet of the condenser of the magnetic suspension electricity-saving air conditioner 2 is connected with a cooling tower 5, and the water outlet of the cooling tower 5 is connected with the water return port of the condenser through a filtering collection box, a water pump and a non-return collection box on a first branch of a transmission and distribution system 2 #. The water outlet of the evaporator is connected with a tail end 6, and the water outlet of the tail end 6 is connected with a water return port of the evaporator sequentially through a filtering collection box, a water pump and a non-return collection box on a second branch of the transmission and distribution system 2 #.
The transmission and distribution system of the embodiment also comprises a control host, and can realize automatic linkage control among the water pump 33, the cooling tower 5, the lithium bromide direct-fired unit 1 and the magnetic suspension electricity-saving air conditioner 2, so as to achieve unattended operation.
The working principle of the embodiment is as follows:
(1) in summer refrigeration, the magnetic suspension electricity-saving air conditioner 2 is driven by electric power, the lithium bromide direct-combustion unit 1 is driven by natural gas, petroleum or waste heat, cold energy is produced by the magnetic suspension electricity-saving air conditioner 2 and each condenser of the lithium bromide direct-combustion unit 1 and is transmitted to an energy utilization tail end through a cold water pipeline 7, generated heat is emitted to the outside through a pipeline 8, and the magnetic suspension electricity-saving air conditioner is preferentially started under normal conditions.
(2) When heating in winter, the lithium bromide direct-fired machine set transmits heat to the energy utilization tail end through the pipeline 9, and when sanitary heat is needed, sanitary hot water or sanitary heat is provided to the tail end through the pipeline.
Since the working principles of the evaporator, the condenser, the generator and the cooling tower are already prior art, they will not be described in detail here.
The lithium bromide direct-fired unit 1 of the embodiment can provide cold, hot and sanitary hot water simultaneously by having three functions, can utilize various energy sources, and has a wide application range. The magnetic suspension electricity-saving air conditioner of the embodiment adopts a magnetic suspension oil-free friction-free technology, so that the reliability of the unit is higher; the rotating speed of the compressor is not limited by the traditional mechanical transmission mode, the maximum rotating speed can reach 48000 revolutions per minute, stepless regulation load can be realized in the refrigerating operation process, and the full load COP and the comprehensive IPLV are far higher than those of a conventional centrifugal electric refrigerating unit.
The embodiment combines and applies the lithium bromide direct-combustion unit and the magnetic suspension electricity-saving air conditioner, and has the following advantages: firstly, multi-energy complementation can be realized: the energy structure can be optimized by using electric energy, natural gas, waste heat and the like, and the operation reliability of the central air-conditioning system is improved. Second, dual mode energy saving operation can be achieved: the starting sequence of the lithium bromide direct-combustion unit and the magnetic suspension electricity-saving air conditioner can be determined according to the local energy conditions, so that the operating cost is effectively saved; for example, in some regions, if the electricity price is too high and the gas price is too low, the magnetic suspension electricity-saving air conditioner is preferably started. Thirdly, the lithium bromide direct-combustion unit can be used for three purposes, so that the number of units is reduced, and the initial investment is reduced; fourthly, the transmission and distribution system mainly has the effects of reducing transmission and distribution energy consumption, accurately matching the system with the water pumps, operating the double pumps and automatically adjusting the number of operating units according to actual conditions; the filtering collection box and the non-return collection box effectively reduce the system resistance and reduce the resistance loss by increasing the cylinder; the compact and reasonable pipeline arrangement reduces the floor area of the machine room.
Claims (9)
1. A central air-conditioning energy-saving system is characterized by comprising a lithium bromide direct-fired unit, a magnetic suspension electricity-saving air conditioner and a transmission and distribution system; the lithium bromide direct-combustion unit is connected with the magnetic suspension electricity-saving air conditioner in parallel, and water outlets of the lithium bromide direct-combustion unit and the magnetic suspension electricity-saving air conditioner are connected with an energy consumption end through pipelines and used for providing cold water or hot water for the energy consumption end; the tail end of the energy utilization system is connected with a lithium bromide direct-fired unit and a water return port of the magnetic suspension electricity-saving air conditioner through a transmission and distribution system; the water outlets of the lithium bromide direct-fired unit and each condenser of the magnetic suspension electricity-saving air conditioner are connected with a cooling tower, and the water outlet of the cooling tower is connected with the water return port of the condenser through a transmission and distribution system.
2. The central air-conditioning energy-saving system of claim 1, wherein the water outlets of the evaporators of the lithium bromide direct-fired unit and the magnetic suspension energy-saving air conditioner are connected with an energy-using end, and the water outlets of the energy-using end are connected with the water return port of the evaporator through a transmission and distribution system.
3. The central air-conditioning energy-saving system of claim 1, wherein a water outlet of a generator of the lithium bromide direct-fired unit is connected with a sanitary hot water terminal through a plate heat exchanger, and a water outlet of the plate heat exchanger is connected with a water return port of the generator through a distribution system.
4. The central air-conditioning energy-saving system according to any one of claims 1 to 3, wherein the transmission and distribution system comprises a non-return header, a filtering header and a water pump, and non-return valves of the non-return header are arranged at the water return ports of the lithium bromide direct-combustion unit and the magnetic suspension electricity-saving air conditioner.
5. The central air-conditioning energy saving system according to claim 4, wherein the non-return header and/or the filtering header comprises a cylinder body, and the diameter of the cylinder body is not less than 2 times of the diameter of the connecting pipe.
6. The central air-conditioning energy-saving system according to claim 4, wherein the water pump comprises a main water pump and a standby water pump, and single/double pump switching can be performed.
7. The central air-conditioning energy-saving system according to any one of claims 1 to 3, wherein the lithium bromide direct-combustion unit and the magnetic suspension electricity-saving air conditioner are respectively connected with a transmission and distribution system or share one transmission and distribution system.
8. The central air-conditioning energy-saving system according to claim 4, wherein the transmission and distribution system comprises at least two sets of integrally arranged check header, filtering header and water pump.
9. The central air-conditioning energy-saving system according to any one of claims 1 to 3, wherein the driving energy of the lithium bromide direct-combustion unit is natural gas, petroleum or waste heat; the driving energy of the magnetic suspension electricity-saving air conditioner is electric power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921090231.0U CN210135661U (en) | 2019-07-12 | 2019-07-12 | Central air conditioning economizer system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921090231.0U CN210135661U (en) | 2019-07-12 | 2019-07-12 | Central air conditioning economizer system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210135661U true CN210135661U (en) | 2020-03-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921090231.0U Active CN210135661U (en) | 2019-07-12 | 2019-07-12 | Central air conditioning economizer system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210135661U (en) |
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2019
- 2019-07-12 CN CN201921090231.0U patent/CN210135661U/en active Active
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