CN116625028B - Centrifugal heat pump for inhibiting surge and system thereof - Google Patents
Centrifugal heat pump for inhibiting surge and system thereof Download PDFInfo
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- CN116625028B CN116625028B CN202310242930.7A CN202310242930A CN116625028B CN 116625028 B CN116625028 B CN 116625028B CN 202310242930 A CN202310242930 A CN 202310242930A CN 116625028 B CN116625028 B CN 116625028B
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- 230000002401 inhibitory effect Effects 0.000 title abstract description 6
- 238000005338 heat storage Methods 0.000 claims abstract description 52
- 230000017525 heat dissipation Effects 0.000 claims abstract description 43
- 238000007789 sealing Methods 0.000 claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 167
- 238000006243 chemical reaction Methods 0.000 claims description 27
- 238000012545 processing Methods 0.000 claims description 17
- 238000010438 heat treatment Methods 0.000 claims description 15
- 230000002269 spontaneous effect Effects 0.000 claims description 11
- 239000000523 sample Substances 0.000 claims description 8
- 238000009434 installation Methods 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 4
- 230000002452 interceptive effect Effects 0.000 claims description 3
- 230000002159 abnormal effect Effects 0.000 claims description 2
- SOIFLUNRINLCBN-UHFFFAOYSA-N ammonium thiocyanate Chemical compound [NH4+].[S-]C#N SOIFLUNRINLCBN-UHFFFAOYSA-N 0.000 claims description 2
- 238000000926 separation method Methods 0.000 claims 4
- 238000000034 method Methods 0.000 abstract description 8
- 230000008569 process Effects 0.000 abstract description 8
- 238000001816 cooling Methods 0.000 abstract description 4
- 239000000498 cooling water Substances 0.000 abstract description 4
- 239000010410 layer Substances 0.000 description 47
- 239000007789 gas Substances 0.000 description 11
- 238000002955 isolation Methods 0.000 description 8
- 239000002344 surface layer Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 230000001502 supplementing effect Effects 0.000 description 5
- 230000002829 reductive effect Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000012466 permeate Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000026676 system process Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B30/00—Heat pumps
- F25B30/02—Heat pumps of the compression type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
- F28D20/02—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using latent heat
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2500/00—Problems to be solved
- F25B2500/13—Vibrations
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention discloses a centrifugal heat pump for inhibiting surge, which comprises an evaporator, a compressor, a condenser, a sealing mounting plate, a heat storage tank and an air pump, wherein the compressor is mounted on the evaporator, the condenser is arranged on one side of the evaporator, the sealing mounting plate is mounted on the outside of the condenser, an outer-layer heat dissipation coil is mounted in the outer-layer heat conduction tank, an inner-layer heat conduction tank is mounted on the outside of the sealing mounting plate, an inner-layer heat dissipation coil is mounted in the inner-layer heat conduction tank, the inner-layer heat conduction tank is arranged in the outer-layer heat conduction tank, the operation state and the temperature of the heat pump are detected by utilizing various sensors in a data acquisition unit in the operation system, the first air pump is started to convey cooling water and phase-change oil under pressure under the condition of overheat temperature, the circulating cooling water and the phase-change oil have the heat outside the condenser, the heat is stored, the cooling heat storage process is completed, and the stored heat source is utilized to inhibit the surge.
Description
Technical Field
The invention relates to heat energy and power engineering, in particular to a centrifugal heat pump for inhibiting surge and a system thereof.
Background
The heat pump is a high-efficiency energy-saving device which fully utilizes low-grade heat energy. Heat may be spontaneously transferred from a high temperature object to a low temperature object, but may not be spontaneously conducted in the opposite direction. The working principle of the heat pump is a mechanical device which forces heat to flow from a low-temperature object to a high-temperature object in a reverse circulation mode, only a small amount of reverse circulation net work is consumed, larger heat supply can be obtained, low-grade heat energy which is difficult to apply can be effectively utilized to achieve the purpose of energy conservation, and the centrifugal heat pump has high energy efficiency; the unit pipeline system is simple and convenient to maintain; the control system is simple and reliable; the running vibration and noise are low; the advantages of the centrifugal heat pump are fully exerted, in particular to a secondary centrifugal heat pump unit and a tertiary centrifugal heat pump unit.
The existing centrifugal heat pump has higher energy efficiency, but has more severe requirements on water temperature and water source in the specific working process, the water temperature is only suitable for medium-temperature working conditions, once the problem of insufficient water temperature is solved, the heat pump unit is easy to generate frequent surge, the frequent surge is easy to cause larger vibration in the unit, internal parts are damaged, once important parts are damaged, the heat pump is stopped, heat exchange cannot be performed in the unit, the condition of high-temperature overload is easier to occur, a condenser is a necessary device for heat exchange of the heat pump, when the overheat phenomenon occurs in the condenser unit, the heat pump is stopped, a large amount of heat cannot be exchanged, and the overload condition is caused by heat accumulation.
Disclosure of Invention
The invention aims to provide a centrifugal heat pump for inhibiting surge, which can collect and store waste heat generated when a condenser performs heat exchange, and utilize the collected and stored heat to compensate heat and water sources of a heat pump unit so as to inhibit the surge phenomenon of the centrifugal heat pump.
To achieve the above object, an embodiment of the present invention provides a centrifugal heat pump for suppressing surge, including:
the device comprises an evaporator, a compressor and a condenser, wherein the compressor is arranged on the evaporator, and the condenser is arranged on one side of the evaporator;
the sealing installation plate is installed outside the condenser, an outer heat conduction tank is installed outside the sealing installation plate, an outer heat dissipation coil is installed inside the outer heat conduction tank, an inner heat conduction tank is installed outside the sealing installation plate, an inner heat dissipation coil is installed inside the inner heat conduction tank, and the inner heat conduction tank is arranged inside the outer heat conduction tank;
The heat storage tank is arranged on one side of the condenser, a heat storage column is fixedly connected to the inside of the heat storage tank, a layering pipe is fixedly connected to the inside of the heat storage tank, the space inside the heat storage tank is divided into an oil storage cavity and a water storage cavity through the layering pipe, the inner-layer heat dissipation coil pipe is communicated with the water storage cavity, and the outer-layer heat dissipation coil pipe is communicated with the oil storage cavity;
the air pump is arranged on one side of the heat storage tank, the air outlet of the air pump is communicated with a four-way valve, the air outlet of the four-way valve is respectively communicated with a first air supply pipe, a second air supply pipe and a third air supply pipe, the first air supply pipe is communicated with the inside of the heat storage tank, the second air supply pipe is communicated with the water storage chamber, and the third air supply pipe is communicated with the oil storage chamber.
In one or more embodiments of the present invention, a water outlet pipe is connected to the inside of the water storage chamber, a first valve is installed at one end of the water outlet pipe away from the water storage chamber, a first connecting pipe is connected to one end of the first valve away from the water outlet pipe, and one end of the first connecting pipe away from the first valve penetrates through the outer walls of the outer layer heat conduction tank and the inner layer heat conduction tank respectively and is connected to the water inlet of the inner layer heat dissipation coil.
In one or more embodiments of the present invention, an oil outlet pipe is connected to the inside of the oil storage chamber, a second valve is installed at one end of the oil outlet pipe away from the oil storage chamber, a second connecting pipe is installed at one end of the second valve away from the oil outlet pipe, and one end of the second connecting pipe away from the second valve penetrates through the outer wall of the outer heat conduction tank and is connected to the oil inlet of the outer heat dissipation coil pipe.
In one or more embodiments of the present invention, a spontaneous heating surface layer is adhered to an inner wall of the thermal storage tank, a flow isolation pipe is installed in the thermal storage tank, a conduction cavity is partitioned from an inner space of the thermal storage tank through the flow isolation pipe, a gas guide valve is installed outside the flow isolation pipe, a gas inlet of the gas guide valve penetrates through an outer wall of the layered pipe, and a gas outlet of the gas guide valve penetrates through an outer wall of the flow isolation pipe and is communicated with the conduction cavity.
In one or more embodiments of the present invention, a temperature sensor is installed outside the thermal storage tank, an internal temperature sensing probe is installed outside the temperature sensor, one end of the internal temperature sensing probe penetrates through the outer wall of the thermal storage tank and is inserted into the thermal storage column, and a pressure release valve is communicated with the outside of the thermal storage tank.
In one or more embodiments of the present invention, a plurality of mounting holes are formed in the outer portion of the inner layer heat dissipation coil, a heated box is connected to the inner portion of the mounting holes, a hollow cavity is formed in the heated box, an air bag is communicated with the outer portion of the hollow cavity, a plurality of water draining holes are formed in the outer portion of the heated box, a first temperature sensor is installed in the outer layer heat conduction tank, and a second temperature sensor is installed in the inner layer heat conduction tank.
In one or more embodiments of the present invention, a water replenishing valve is communicated with the inside of the water storage chamber, a first flow rate sensor and a second flow rate sensor are respectively installed at an inlet and an outlet of the condenser, a water supply pipe is communicated with the inside of the water storage chamber, and the water supply pipe is communicated with a water inlet of the heat pump through a pipeline.
In one or more embodiments of the present invention, the water outlet of the outer layer heat dissipation coil is communicated with an oil delivery pipe, the water outlet of the oil delivery pipe penetrates through the outer wall of the heat storage tank and is communicated with the oil storage chamber, the water outlet of the inner layer heat dissipation coil is communicated with a water delivery pipe, the oil delivery pipe and the water delivery pipe are both provided with air release valves, and the water delivery pipe is far away from one end of the outer layer heat dissipation coil.
In one or more embodiments of the present invention, a third temperature sensor and a fourth temperature sensor are respectively installed at the outside of the thermal storage tank.
The present invention also provides a centrifugal heat pump system for suppressing surge, comprising: the system comprises a data acquisition unit, a data processing unit and a reaction compensation unit;
the data processing unit is arranged in an integrated electric cabinet of the heat pump, and the data acquisition unit and the reaction compensation unit are both in interactive connection with the data processing unit;
the data acquisition unit detects the temperature and the flow rate of water flow and air flow entering the condenser through the first flow rate sensor and the second flow rate sensor, the data are transmitted to the data processing unit after being detected, initial heat pump cycle data in the electric cabinet are integrated and fed back to the reaction compensation unit, and the reaction compensation unit compares and calculates according to the data values to judge whether reaction compensation is needed;
When the reaction compensation is needed, the reaction compensation is fed back to the data processing unit and the industrial personal computer, and when the reaction compensation is not needed, the normal operation is kept.
In one or more embodiments of the present invention, the data acquisition unit further includes acquiring different temperatures of the first temperature sensor and the second temperature sensor, the normal temperature data, the low temperature data, and the high temperature data detected in the temperature sensor, the different temperatures in the third temperature sensor and the fourth temperature sensor, the air pressure value of the pressure relief valve, and the air pressure value of the air release valve.
Compared with the prior art, according to the centrifugal heat pump and the system for inhibiting surge, heat generated outside the condenser is collected and stored through the heat storage tank in the normal working process of the heat pump, when the water temperature is insufficient on the energy side of the heat pump, heat compensation is carried out on water flow on the energy side by utilizing the heat stored in the heat storage tank, meanwhile, a relay heat source stored in the heat storage tank is water, the relay heat source can also be used as a temporary water source for supplying when the water source on the energy side is insufficient, and the surge phenomenon of the heat pump is inhibited through double compensation of the heat source and the water source.
Meanwhile, the heat outside the condenser can be collected and radiated, the operation state and the temperature of the heat pump are detected by utilizing each sensor in the data acquisition unit in the operation system process, the first air pump is started to convey cooling water and phase-change oil in a pressurized mode under the condition that the temperature is overheated, the circulating cooling water and the phase-change oil carry the heat outside the condenser, the heat is stored, the cooling and heat storage process is completed, and the stored heat source is utilized to inhibit surge.
Drawings
FIG. 1 is a schematic diagram of a structure according to one view angle in an embodiment of the present invention;
FIG. 2 is a schematic diagram of a structure according to another view angle in an embodiment of the present invention;
FIG. 3 is a schematic diagram of an explosive structure according to one embodiment of the invention;
FIG. 4 is a schematic view of a partial cross-sectional configuration of a condenser in accordance with one embodiment of the present invention;
FIG. 5 is a schematic cross-sectional view of a thermal storage tank according to an embodiment of the present invention;
FIG. 6 is a schematic cross-sectional view of an inner heat-dissipating coil in accordance with an embodiment of the present invention;
FIG. 7 is a schematic view of a drain hole according to an embodiment of the present invention;
FIG. 8 is an enlarged schematic view of the structure of area A in FIG. 4 according to an embodiment of the present invention;
FIG. 9 is an enlarged schematic view of the structure of the area B in FIG. 5 according to an embodiment of the present invention;
FIG. 10 is a schematic diagram of a system flow in accordance with an embodiment of the invention;
fig. 11 is a schematic diagram of a system flow in accordance with another embodiment of the invention.
The main reference numerals illustrate:
10. An evaporator; 11. a compressor; 12. a condenser; 13. a heat storage tank; 20. a seal mounting plate; 21. an outer layer heat conduction tank; 22. an inner layer heat conduction tank; 23. an inner layer heat dissipation coil; 24. an outer layer heat dissipation coil; 30. a layered tube; 31. an oil storage chamber; 32. a water storage chamber; 33. a water outlet pipe; 34. a first valve; 35. a first connection pipe; 36. an oil outlet pipe; 37. a second valve; 38. a second connection pipe; 39. oil delivery pipe; 301. a water supply pipe; 40. an air pump; 41. a four-way valve; 42. a first air supply pipe; 43. a second air supply pipe; 44. a third air supply pipe; 50. a spontaneous heating layer; 51. a heat storage column; 60. an inner temperature sensing probe; 61. a temperature sensor; 62. a release valve; 63. a first flow rate sensor; 64. a second flow rate sensor; 65. a first temperature sensor; 66. a second temperature sensor; 67. a third temperature sensor; 68. a fourth temperature sensor; 69. a pressure release valve; 601. a water supplementing valve; 70. a mounting hole; 71. a heated box; 72. a hollow cavity; 73. an air bag; 74. a water discharge hole; 80. a flow blocking pipe; 81. a conductive cavity; 82. and an air guide valve.
Detailed Description
The following detailed description of embodiments of the invention is, therefore, to be taken in conjunction with the accompanying drawings, and it is to be understood that the scope of the invention is not limited to the specific embodiments.
Throughout the specification and claims, unless explicitly stated otherwise, the term "comprise" or variations thereof such as "comprises" or "comprising", etc. will be understood to include the stated element or component without excluding other elements or components.
As shown in fig. 1 to 10, a centrifugal heat pump for suppressing surge according to a preferred embodiment of the present invention includes: an evaporator 10, a compressor 11, and a condenser 12, the compressor 11 being mounted on the evaporator 10, the condenser 12 being provided at one side of the evaporator 10.
As shown in fig. 1 to 4, a seal mounting plate 20, the seal mounting plate 20 is mounted on the outside of the condenser 12, and an outer layer heat conduction tank 21 is mounted on the outside of the seal mounting plate 20;
specifically, the seal mounting plate 20 is an annular seal sleeve plate, and may be mounted by sleeving on the exterior of the condenser 12. The sleeving manner is convenient for directly pulling the sealing mounting plate 20 out of the condenser 12 during maintenance, so that the components inside the outer layer heat conduction tank 21 can be visually observed. The staff can conveniently overhaul the inside. The contact position of the sealing mounting plate 20 and the condenser 12 is provided with a high-temperature-resistant annular sealing ring, and the high-temperature-resistant annular sealing ring ensures the tightness between the sealing mounting plate 20 and the condenser 12. And meanwhile, the high-temperature resistance prevents the sealing performance of the sealing ring from being damaged due to the fact that higher temperature is generated outside the condenser 12.
As shown in fig. 1 to 4, an outer heat dissipation coil 24 is installed inside the outer heat conduction tank 21, an inner heat conduction tank 22 is installed outside the seal installation plate 20, an inner heat dissipation coil 23 is installed inside the inner heat conduction tank 22, and the inner heat conduction tank 22 is disposed inside the outer heat conduction tank 21.
Specifically, an inner heat dissipation and an outer heat dissipation are formed between the outer heat conduction tank 21 and the inner heat conduction tank 22, the inner heat dissipation utilizes the circulation water flow of the inner heat dissipation coil 23, and the outer heat dissipation utilizes the circulation phase-change oil of the outer heat dissipation coil 24. The inner heat-dissipating coil 23 is configured to carry heat generated by the condenser 12 away by circulating a water flow around the condenser 12. The outer layer heat dissipation coil 24 can conduct the temperature in part of the circulating water flow while circulating the phase-change oil, so that double-layer heat conduction is realized. The heat conductivity of the phase-change oil is larger than that of the circulating water, so that the heat in the water can be more rapidly conducted out.
During normal operation of the condenser 12, circulation of the inner heat-dissipating coil 23 may be performed alone, and water flow of the inner heat-dissipating coil 23 may be reduced. So that a small amount of heat is collected in the water circulation process to store heat, and the phase-change oil is prevented from taking away more temperature.
The airtight space formed between the outer layer heat conduction tank 21 and the inner layer heat conduction tank 22 can absorb part of noise, and noise pollution is reduced.
The spacing between each of the outer and inner heat rejection coils 24, 23 is 20-55cm, and the tubing in the 20-55cm spacing may be appropriate to intercept the temperature outside of the condenser 12. Too long interval temperature interception efficiency is lower, and timely heat storage cannot be performed. Too short a spacing may result in too long a circulation of the heat conducting water stream and phase change oil, and too high a conduction temperature, which may result in a reduction in the operating temperature of the condenser 12.
As shown in fig. 5, the heat storage tank 13 is provided on one side of the condenser 12, and the heat storage column 51 is fixedly connected to the inside of the heat storage tank 13.
Specifically, the heat storage column 51 is a column with an abnormal pressure card material ammonium thiocyanate inside. The heat storage column 51 can absorb heat for storage after being pressurized, and the heat storage column 51 can be decompressed when heat needs to be released.
The inside of the thermal storage tank 13 is fixedly connected with a layering pipe 30, and the space inside the thermal storage tank 13 is divided into an oil storage chamber 31 and a water storage chamber 32 through the layering pipe 30.
Specifically, after the inside of the thermal storage tank 13 is layered by the layered pipe 30, the internal water storage chamber 32 can be in contact with the thermal storage column 51, and the water in the water storage chamber 32 can be rapidly heated when the thermal storage column 51 releases pressure and heat. The oil storage chamber 31 at the outer layer stores phase change oil. When the phase-change oil liquid has a conductive temperature, heat can be conducted into the water storage chamber 32, and the water storage chamber 32 conducts the heat into the heat storage column 51 again.
As shown in fig. 1 to 5, the water storage chamber 32 is internally communicated with a water outlet pipe 33, one end of the water outlet pipe 33, which is far away from the water storage chamber 32, is provided with a first valve 34, one end of the first valve 34, which is far away from the water outlet pipe 33, is communicated with a first connecting pipe 35, and one end of the first connecting pipe 35, which is far away from the first valve 34, respectively penetrates through the outer walls of the outer layer heat conduction tank 21 and the inner layer heat conduction tank 22 and is communicated with the water inlet of the inner layer heat dissipation coil 23.
Specifically, during the flow of water inside the water storage chamber 32 into the inner layer of cooling coils 23. The water flow in the water storage cavity 32 can enter the water outlet pipe 33, the water flow in the water outlet pipe 33 enters the first connecting pipe 35 after the flow is regulated by the first valve 34, the first connecting pipe 35 can convey the water flow into the inner-layer heat dissipation coil 23, and the inner-layer heat dissipation coil 23 returns to the water storage cavity 32 through the water supply pipe 301 after circulating the water flow, so that the water flow circulation is completed. While taking away heat from the exterior of the condenser 12 during the cycle.
When the condenser 12 needs to be subjected to stronger heat dissipation, the inside of the oil storage chamber 31 is pressurized, oil is conveyed into the oil outlet pipe 36 through pressure, the inside of the oil outlet pipe 36 enters the oil, the second valve 37 is used for adjusting the input and output quantity, the second connecting pipe 38 is used for conveying the oil into the outer-layer heat dissipation coil 24, the outer-layer heat dissipation coil 24 is used for circulating the oil, and then the oil is conveyed into the inside of the oil storage chamber 31 again through the oil conveying pipe 39, so that the circulation of phase-change oil is completed.
The circulation of the phase-change oil liquid can take away the heat outside the condenser 12 again, and meanwhile, the heat in the circulating water can be conducted, so that the temperature of the water body is reduced, the heat dissipation intensity of the circulating water to the condenser 12 is enhanced, and the secondary circulation heat dissipation and cooling are completed.
The air release valve 62 is installed on both the oil feed pipe 39 and the water feed pipe 301, and the air inside the outer heat radiation coil 24 and the inner heat radiation coil 23 can be discharged at regular time by the arrangement of the air release valve 62.
As shown in fig. 1 to 5, the air pump 40 is disposed at one side of Chu Wenguan, the air outlet of the air pump 40 is communicated with a four-way valve 41, the air outlet of the four-way valve 41 is respectively communicated with a first air supply pipe 42, a second air supply pipe 43 and a third air supply pipe 44, the first air supply pipe 42 is communicated with the interior of Chu Wenguan, the second air supply pipe 43 is communicated with the water storage chamber 32, and the third air supply pipe 44 is communicated with the oil storage chamber 31.
In particular, in circulating water and phase-change oil. By starting the air pump 40, the air pump 40 is started to convey air into the water storage chamber 32 and the oil storage chamber 31 through the four-way valve 41, the second air supply pipe 43 and the third air supply pipe 44, and air pressure is formed after a large amount of air is stored in the oil storage chamber 31 and the water storage chamber 32, so that circulating water and phase-change oil are pressed into the water outlet pipe 33 and the oil outlet pipe 36 through the air pressure.
When it is desired to regulate the flow of oil and water into the interior of the outer 24 and inner 23 radiator coils. The air outlets of the first air supply pipe 42 and the second air supply pipe 43 are communicated with the first connecting pipe 35 and the second connecting pipe 38, and air is directly injected into the pipeline, so that the air can push quantitative oil liquid and water flow to circulate. Reducing the instances where excess water flow and excess oil continues to absorb heat from the interior of the condenser 12.
As shown in fig. 5, the inner wall of the thermal storage tank 13 is adhered with the spontaneous heating surface layer 50, the inside of the thermal storage tank 13 is provided with a flow isolation pipe 80, the inner space of the thermal storage tank 13 is divided into a conducting cavity 81 by the flow isolation pipe 80, the outside of the flow isolation pipe 80 is provided with a gas guide valve 82, the gas inlet of the gas guide valve 82 penetrates through the outer wall of the layered pipe 30, and the gas outlet of the gas guide valve 82 penetrates through the outer wall of the flow isolation pipe 80 and is communicated with the conducting cavity 81.
Specifically, when the heat storage column 51 releases heat, the generated heat heats the water flow inside the water storage chamber 32. The water flow heating temperature is conducted into the spontaneous heating surface layer 50 in the water flow heating process, the spontaneous heating surface layer 50 generates heat by itself through heat conduction, the temperature inside the heat storage tank 13 is increased, and the water flow heating speed is increased.
The spontaneous heating layer 50 may also be a hygroscopic exothermic fabric. With the provision of the flow-blocking pipe 80, the spontaneous heating surface layer 50 is separated from the phase-change oil contact. Steam is generated during the heating of the water flow within the water storage chamber 32. The steam is conducted into the conduction cavity 81 through the air guide valve 82, and the heat-generating fibers in the spontaneous heating surface layer 50 positioned in the conduction cavity 81 absorb the conducted steam, and after the steam enters the heat-generating fibers, the steam is converted into liquid and adsorbed on the fibers, and the heat is released in the process of converting the gas into the liquid, so that the heat-generating process and the heat-generating temperature are heated, and the temperature in the heat storage tank 13 is increased again.
As shown in fig. 5, a temperature sensor 61 is mounted on the outside of the thermal storage tank 13, an inner temperature sensing probe 60 is mounted on the outside of the temperature sensor 61, one end of the inner temperature sensing probe 60 penetrates through the outer wall of the thermal storage tank 13 and is inserted into the thermal storage column 51, and a pressure release valve 69 is communicated with the outside of the thermal storage tank 13.
Specifically, the inner temperature sensing probe 60 detects the internal temperature of the heat storage column 51, converts the heat information into electronic information data through the temperature sensor 61 for display, and simultaneously transmits the converted electronic information data to the data acquisition unit, and the data acquisition unit uses the data information transmission data processing unit as comparison data.
The pressure release valve 69 is provided to release pressure in the heat storage tank 13. The heat storage column 51 radiates heat when the pressure is reduced, so that the water flow inside the water storage chamber 32 can be heated. The pressure release valve 69 is an electronic pressure release valve 69, pressure data can be transmitted to the data acquisition unit in real time, and integrated control is carried out through a main controller in the electric cabinet.
As shown in fig. 8, the first temperature sensor 65 is installed inside the outer layer heat conduction tank 21, and the second temperature sensor 66 is installed inside the inner layer heat conduction tank 22.
Specifically, the temperatures in the outer layer heat conduction tank 21 and the inner layer heat conduction tank 22 can be detected by the arrangement of the first temperature sensor 65 and the second temperature sensor 66, respectively.
As shown in fig. 6 to 7, a plurality of mounting holes 70 are formed in the outer portion of the inner-layer heat dissipation coil 23, a heated box 71 is connected to the inner portion of the mounting holes 70, a hollow cavity 72 is formed in the heated box 71, an air bag 73 is communicated with the outer portion of the hollow cavity 72, and a plurality of water drainage holes 74 are formed in the outer portion of the heated box 71.
Specifically, when the temperatures detected by the first temperature sensor 65 and the second temperature sensor 66 reach the set threshold values, the data processing unit and the main controller start the pressure release valve 69, and after the pressure release valve 69 releases pressure, the heat storage column 51 releases heat to heat the circulating water. When the temperature inside the condenser 12 reaches a prescribed temperature, the air stored inside the hollow chamber 72 is severely inflated, so that the balloon 73 is inflated into a spherical shape. The air bag 73 expanded into a spherical shape can generate gaps with the inner-layer heat-radiating coil 23, and hot water circulating inside the inner-layer heat-radiating coil 23 can enter the inside of the water discharge hole 74 through the gaps, so that the hot water permeates into the surface of the condenser 12 to radiate heat of the condenser 12.
Because the inner layer heat dissipation coil 23 is internally provided with the heated water flow, no violent reaction occurs when the water flow permeates into the surface of the condenser 12 with higher temperature, the water flow can be vaporized instantly by the higher temperature of the surface of the condenser 12, and the temperature generated after vaporization is conducted into the inner layer heat dissipation coil 23. The circulation of the inner heat-dissipating coil 23 takes away the conducted heat, forming a heat-dissipating circulation.
When the surface of the condenser 12 is cooled to a normal temperature, the air inside the hollow chamber 72 and the air bag 73 gradually loses its expansion force, thereby being retracted into the inside of the mounting hole 70, and the drain hole 74 is closed again.
As shown in fig. 4, the water-storage chamber 32 is internally communicated with a water-replenishing valve 601, the inlet and outlet of the condenser 12 are respectively provided with a first flow sensor 63 and a second flow sensor 64, the water-storage chamber 32 is internally communicated with a water-supply pipe 301, and the water-supply pipe 301 is communicated with the water inlet of the heat pump through a pipeline.
Specifically, through the arrangement of the first flow sensor 63 and the second flow sensor 64, the flow velocity of the external water is detected, and the situation of insufficient water source is generated by matching with the water inlet data in the main control machine to compare the heat pump unit. When the water source is insufficient on the energy source side, the water supplementing valve 601 is opened, and the water flow in the water storage chamber 32 can be temporarily supplemented to the energy source side by opening the water supplementing valve 601, so that the surge phenomenon caused by water shortage under the condition that the compressor 11 is operated at full power is avoided.
When the continuous water shortage phenomenon occurs, the reaction compensation unit gives an alarm in time, and meanwhile, in order to ensure that the user side has continuous heat supply, the water flow at the energy side can be connected into the heat storage tank 13, and the heat stored in the heat storage tank 13 is utilized to heat the water flow, so that the heat supply at the user side is ensured.
In order to ensure that the temperature inside the thermal storage tank 13 can reach a specified neutralization temperature when hot water compensation is performed on the energy source side or the user side. The third temperature sensor 67 and the fourth temperature sensor 68 are respectively installed at the outside of the thermal storage tank 13, and the temperatures of the circulating water and the phase change oil stored inside the thermal storage tank 13 are measured by the third temperature sensor 67 and the fourth temperature sensor 68.
When thermal compensation is needed, part of energy side cold water and hot water in the heat storage tank 13 are connected by the water supplementing valve 601, so that proper water temperature is formed.
The present invention also provides a centrifugal heat pump system for suppressing surge, comprising: the system comprises a data acquisition unit, a data processing unit and a reaction compensation unit;
The data processing unit is arranged in an integrated electric cabinet of the heat pump, and the data acquisition unit and the reaction compensation unit are both in interactive connection with the data processing unit; the data acquisition unit detects the temperature and the flow rate of water flow and air flow entering the condenser 12 through the first flow rate sensor 63 and the second flow rate sensor 64, the data are transmitted to the data processing unit after being detected, initial heat pump cycle data in the electric cabinet are integrated and fed back to the reaction compensation unit, and the reaction compensation unit compares and calculates according to the data values to judge whether the reaction compensation is needed;
When the reaction compensation is needed, the reaction compensation is fed back to the data processing unit and the industrial personal computer, and when the reaction compensation is not needed, the normal operation is kept.
The present invention also provides a centrifugal heat pump system for suppressing surge, comprising: the energy source side, the user side, the heat pump unit and the clear water heat exchanger.
In the normal operation process, the energy side continuously conveys warm water to the heat pump unit, the heat pump unit normally exchanges heat to transfer heat to the energy side, when the water flow temperature is insufficient on the energy side, the water flow on the energy side is conveyed into the clear water heat exchanger through the conversion of the valve, the heat exchange work is carried out through the clear water heat exchanger, the energy on the user side is timely supplemented, and the surging phenomenon is avoided.
According to the technical scheme, the working steps of the scheme are summarized and carded: when the heat pump unit is in normal operation, the air pump 40 is utilized to partially inject circulating water into the inner-layer heat-dissipating coil 23, part of water flow of the inner-layer heat-dissipating coil 23 circulates outside the condenser 12, part of heat of the condenser 12 is intercepted, heat is stored through the heat storage column 51, and the spontaneous heating and temperature rise are carried out by utilizing the spontaneous heating material layer 50;
when the water flow at the energy side is insufficient, the water supplementing valve 601 is used as a temporary water source to supplement, so that the surge phenomenon caused by the interruption of the water flow at the energy side is avoided, when the temperature of the water flow at the energy side is insufficient, the pressure is released to release the heat in the heat storage column 51, the water flow is heated, and the temperature of the water flow at the energy side is compensated through the heated water flow;
When the temperature of the condenser 12 is too high, the air pump 40 is started to push the circulating water and the phase-change oil into the inner-layer heat dissipation coil 23 and the outer-layer heat dissipation coil 24 to conduct double-layer circulating heat dissipation, and when the temperature of the condenser 12 reaches a critical value, the air in the air bag 73 is expanded due to the high temperature generated by the condenser 12, the expanded air bag 73 can leak out of a gap of the mounting hole 70, so that the circulating water is conveyed to the outer side of the condenser 12, and the condenser 12 is cooled again due to direct contact of the circulating water.
The foregoing descriptions of specific exemplary embodiments of the present invention are presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain the specific principles of the invention and its practical application to thereby enable one skilled in the art to make and utilize the invention in various exemplary embodiments and with various modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.
Claims (9)
1. A centrifugal heat pump for suppressing surge, comprising:
the device comprises an evaporator, a compressor and a condenser, wherein the compressor is arranged on the evaporator, and the condenser is arranged on one side of the evaporator;
the sealing installation plate is installed outside the condenser, an outer heat conduction tank is installed outside the sealing installation plate, an outer heat dissipation coil is installed inside the outer heat conduction tank, an inner heat conduction tank is installed outside the sealing installation plate, an inner heat dissipation coil is installed inside the inner heat conduction tank, and the inner heat conduction tank is arranged inside the outer heat conduction tank;
The heat storage tank is arranged on one side of the condenser, a heat storage column is fixedly connected to the inside of the heat storage tank, a layering pipe is fixedly connected to the inside of the heat storage tank, the space inside the heat storage tank is divided into an oil storage cavity and a water storage cavity through the layering pipe, the inner-layer heat dissipation coil pipe is communicated with the water storage cavity, and the outer-layer heat dissipation coil pipe is communicated with the oil storage cavity;
The air pump is arranged at one side of the heat storage tank, the air outlet of the air pump is communicated with a four-way valve, the air outlet of the four-way valve is respectively communicated with a first air supply pipe, a second air supply pipe and a third air supply pipe, the first air supply pipe is communicated with the inside of the heat storage tank, the second air supply pipe is communicated with the water storage chamber, and the third air supply pipe is communicated with the oil storage chamber;
the heat storage column is a column body with abnormal pressure clamp material ammonium thiocyanate inside.
2. The surge-suppressing centrifugal heat pump of claim 1, wherein a water outlet pipe is communicated with the interior of the water storage chamber, a first valve is installed at one end of the water outlet pipe away from the water storage chamber, a first connecting pipe is communicated with one end of the first valve away from the water outlet pipe, and one end of the first connecting pipe away from the first valve penetrates through the outer walls of the outer-layer heat conduction tank and the inner-layer heat conduction tank respectively and is communicated with the water inlet of the inner-layer heat dissipation coil.
3. The surge-suppressing centrifugal heat pump of claim 2 wherein the interior of the oil storage chamber is in communication with an oil outlet, a second valve is mounted at an end of the oil outlet remote from the oil storage chamber, a second connecting tube is mounted at an end of the second valve remote from the oil outlet, and an end of the second connecting tube remote from the second valve penetrates through the outer wall of the outer heat conduction tank and is in communication with the oil inlet of the outer heat dissipation coil.
4. A centrifugal heat pump for suppressing surge as claimed in claim 3, wherein a spontaneous heating material layer is adhered to the inner wall of the heat storage tank, a flow separation pipe is installed in the heat storage tank, a conduction cavity is divided into the inner space of the heat storage tank by the flow separation pipe, a gas guide valve is installed outside the flow separation pipe, a gas inlet of the gas guide valve penetrates through the outer wall of the layered pipe, and a gas outlet of the gas guide valve penetrates through the outer wall of the flow separation pipe and is communicated with the conduction cavity.
5. The surge-suppressing centrifugal heat pump of claim 4 wherein a temperature sensor is mounted outside the heat storage tank, an inner temperature sensing probe is mounted outside the temperature sensor, one end of the inner temperature sensing probe penetrates through the outer wall of the heat storage tank and is inserted into the heat storage column, and a pressure release valve is communicated with the outside of the heat storage tank.
6. The surge-suppressing centrifugal heat pump of claim 5, wherein a plurality of mounting holes are formed in the outer portion of the inner heat-dissipating coil, a heated box is connected to the inner portion of the mounting holes, a hollow cavity is formed in the heated box, an air bag is communicated with the outer portion of the hollow cavity, a plurality of water draining holes are formed in the outer portion of the heated box, a first temperature sensor is mounted in the inner portion of the outer heat-conducting tank, and a second temperature sensor is mounted in the inner portion of the inner heat-conducting tank.
7. The surge-suppressing centrifugal heat pump of claim 6 wherein the interior of the water storage chamber is connected with a water replenishment valve, the inlet and outlet of the condenser are respectively provided with a first flow sensor and a second flow sensor, the interior of the water storage chamber is connected with a water supply pipe, and the water supply pipe is connected with the water inlet of the heat pump through a pipeline.
8. The surge-suppressing centrifugal heat pump of claim 7 wherein the water outlet of the outer heat-dissipating coil is connected with a water delivery pipe, the water outlet of the water delivery pipe penetrates through the outer wall of the heat storage tank and is connected with the oil storage chamber, the water outlet of the inner heat-dissipating coil is connected with a water delivery pipe, the water delivery pipe and the water delivery pipe are both provided with a release valve, and one end of the water delivery pipe away from the outer heat-dissipating coil is connected with the water storage chamber.
9. A surge-suppressing centrifugal heat pump system comprising a surge-suppressing centrifugal heat pump according to any one of claims 1-8, further comprising: the system comprises a data acquisition unit, a data processing unit and a reaction compensation unit;
The data processing unit is arranged in the integrated electric cabinet of the heat pump, and the data acquisition unit and the reaction compensation unit are both in interactive connection with the data processing unit;
The data acquisition unit detects the flow rate of water flowing into the condenser through the first flow rate sensor and the second flow rate sensor, the data are transmitted to the data processing unit after being detected, initial heat pump cycle data in the electric cabinet are integrated and fed back to the reaction compensation unit, and the reaction compensation unit compares and calculates according to the data values to judge whether reaction compensation is needed;
When the reaction compensation is needed, the reaction compensation is fed back to the data processing unit and the industrial personal computer, and when the reaction compensation is not needed, the normal operation is kept.
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| CN104864620A (en) * | 2014-02-26 | 2015-08-26 | 荏原冷热系统株式会社 | Centrifugal refrigerator |
| CN106288513A (en) * | 2016-09-30 | 2017-01-04 | 广州高菱能源技术有限公司 | A kind of band phase change cold-storage and the cold, hot two-purpose heat pump of accumulation of heat |
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| KR100897131B1 (en) * | 2008-03-05 | 2009-05-14 | 유인석 | System of heat pump for cooling and heating of middle pressure binary cycle for cold areas |
| KR102161125B1 (en) * | 2019-02-28 | 2020-09-29 | 주식회사 제이앤지 | Intelligent dual heat exchanging type heat pump system |
| CN112050490A (en) * | 2020-09-25 | 2020-12-08 | 浙江国祥股份有限公司 | Evaporative cooling centrifugal water chilling unit |
| KR20220050573A (en) * | 2020-10-16 | 2022-04-25 | 엘지전자 주식회사 | Chiller system and method for operating the same |
| US12078397B2 (en) * | 2020-12-04 | 2024-09-03 | Honeywell International Inc. | Surge control subcooling circuit |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104864620A (en) * | 2014-02-26 | 2015-08-26 | 荏原冷热系统株式会社 | Centrifugal refrigerator |
| CN106288513A (en) * | 2016-09-30 | 2017-01-04 | 广州高菱能源技术有限公司 | A kind of band phase change cold-storage and the cold, hot two-purpose heat pump of accumulation of heat |
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