CN104613674A - Soil source fuel gas heat pump supplying heat, cool and hot water system - Google Patents
Soil source fuel gas heat pump supplying heat, cool and hot water system Download PDFInfo
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- CN104613674A CN104613674A CN201410749434.1A CN201410749434A CN104613674A CN 104613674 A CN104613674 A CN 104613674A CN 201410749434 A CN201410749434 A CN 201410749434A CN 104613674 A CN104613674 A CN 104613674A
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- heat exchanger
- domestic hot
- source gas
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 305
- 239000002689 soil Substances 0.000 title claims abstract description 33
- 239000002737 fuel gas Substances 0.000 title abstract 6
- 238000011084 recovery Methods 0.000 claims abstract description 19
- 238000001816 cooling Methods 0.000 claims description 24
- 239000003673 groundwater Substances 0.000 abstract description 8
- 230000008901 benefit Effects 0.000 abstract description 4
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 32
- 238000004378 air conditioning Methods 0.000 description 15
- 239000002352 surface water Substances 0.000 description 10
- 238000010438 heat treatment Methods 0.000 description 9
- 239000000567 combustion gas Substances 0.000 description 4
- 230000003750 conditioning effect Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000007704 transition Effects 0.000 description 4
- 239000002918 waste heat Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000011217 control strategy Methods 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 239000008236 heating water Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 229910001335 Galvanized steel Inorganic materials 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 239000008397 galvanized steel Substances 0.000 description 1
- 239000005431 greenhouse gas Substances 0.000 description 1
- 238000005338 heat storage Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
- 238000010977 unit operation Methods 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
- F25B29/00—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously
- F25B29/003—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously of the compression type system
Abstract
The invention discloses a soil source supplying heat, cool and hot water system. The soil source supplying heat, cool and hot water system comprises a ground heat exchanger, and a circulation loop first is formed by the ground heat exchanger and a water source fuel gas heat pump set connected with the ground heat exchanger; a circulation loop second is formed by the water source fuel gas heat pump set and a heat recovery heat exchanger and a circulation loop third is formed by the water source fuel gas heat pump set and air-condition end equipment, wherein the heat recovery heat exchanger and the air-condition end equipment are connected with the water source fuel gas heat pump set; a circulation loop forth is formed by the heat recovery heat exchanger and a domestic hot water heat exchanger and a circulation loop fifth is formed by the heat recovery heat exchanger and a domestic hot water storage water tank, wherein the heat recovery heat exchanger is connected with the domestic hot water heat exchanger and the domestic hot water storage water tank; a circulation loop sixth is formed by the domestic hot water heat exchanger and the water source fuel gas heat pump set; the circulation loop first, circulation loop second, circulation loop third, circulation loop forth, circulation loop fifth, circulation loop sixth are all connected with a domestic hot water supply controller matched with a system. The soil source for supplying heat, cool and hot water system has the advantages that the operational efficiency is high, the energy consumption is saved, groundwater resources are not damaged, the degree of automation is high, and the controlling is scientific and reasonable.
Description
Technical field
The present invention relates to the heat supply of a kind of soil source gas-fired heat pump, cooling and hot-water supply system.
Background technology
Earth source heat pump is the air-conditioning technology utilizing superficial-layer geothermal energy to carry out the high-efficient energy-saving environment friendly of heating and refrigerating.Earth source heat pump is the heat storage and cold accumulation ability utilizing underground huge, by buried pipe-line system under Around Buildings or base plate, adopt heat pump principle, by a small amount of high-order electric energy input, realize Lowlevel thermal energy to shift to high level heat, make underground Rock And Soil and building complete a kind of technology of heat exchange.
Geothermal heat pump air-conditioning system is mainly divided into three parts: outside ground heat-exchange system, heat pump set system and indoor heating air conditioning terminal system; By outside ground heat-exchange system, in winter, source pump absorbs heat from the Rock And Soil of underground, heats to building; In summer, source pump absorbs heat indoor and transfer is discharged in the Rock And Soil of underground, ground, realizes building air-conditioning refrigeration; The low-temperature receiver water provided for source pump due to buried pipe heat exchange system and the temperature of heat source water are close to subsurface temperature, in summer lower than outside air temperature, in the winter time higher than outside air temperature, so earth source heat pump compares traditional air cool heat pump air conditioning system, Energy Efficiency Ratio is higher, can remarkable economize energy.
Combustion gas water resource heat pump: combustion gas water resource heat pump adopts gas engine-driven compressor, adopt underground water, surface water, sewage etc. as Cooling and Heat Source, there is higher energy-saving effect, its advantage is: 1. gas-engine-driven source pump is relative to conventional heat pump unit, more can make full use of fuel, there is higher primary energy ratio; 2. gas-engine-driven compressor can continuously change rotating speed, realize the continuous adjustment of refrigerating capacity, and the coefficient of performance of refrigeration compressor remains unchanged, and the varying duty regulating power of therefore combustion gas--water resource heat pump is very strong; 3. because natural gas is clean fuel, do not produce lime-ash in combustion, the emission after burning is less, can reduce the discharge capacity of greenhouse gases and atmosphere pollution; 4. develop gas air conditioner, the low ebb of city at gas consumption in summer can be made up, play Peak Load Adjustment; 5. during winter operation, gas engine used heat is utilized to defrost, can reduce and even exempt cold-producing medium reverse flow defrosting, improve source pump heating quality and operational reliability, improve the coefficient of performance in heating of source pump, can run under lower environment temperature, be applicable to China's overwhelming majority area; 6. compare air source heat pump, there is higher Energy Efficiency Ratio.
The soil source heat pump system that electric drive water resource heat pump and ground heat exchanger are combined to form is used widely, and the water source that in soil source heat pump system, water source heat pump units uses is the recirculated water after ground heat exchanger and soil to execute heat exchange.
But existing water source gas-fired heat pump but exists following shortcoming: 1, underground water source gas-fired heat pump not easily passs through government's examination & approval, very easily to destroy, polluted underground water resource, groundwater run off, water quality are not easily up to standard, and it is large to recharge difficulty; 2, earth surface water source gas-fired heat pump not easily finds surface water resources that is annual stable, abundant, water quality proper temperature near construction project, and the temperature of surface water is general and outside air temperature relatively, unit operation efficiency is not high.
For the problem in correlation technique, at present effective solution is not yet proposed.
Summary of the invention
The object of this invention is to provide the heat supply of a kind of soil source gas-fired heat pump, cooling and hot-water supply system, running efficiency of system can be improved, save system energy consumption, in the winter time while heating, summer cooling, can domestic hot-water be provided the whole year and reclaim the cooling residual heat of gas engine, conservative control system produces domestic hot-water, and the soil source gas-fired heat pump heat supply that automaticity is high, confession cold-peace hot-water supply system, effectively overcome currently available technology above shortcomings.
The object of the invention is to be achieved through the following technical solutions:
The heat supply of a kind of soil source gas-fired heat pump, cooling and hot-water supply system, comprise ground heat exchanger, described ground heat exchanger forms closed circuit one with the water source gas-fired heat pump unit be connected, described water source gas-fired heat pump unit forms closed circuit two and closed circuit three with the heat recovering heat exchanger be connected and air conditioner end equipment respectively, described heat recovering heat exchanger forms closed circuit four and closed circuit five with the domestic hot-water's heat exchanger be connected and domestic hot-water's storage tank respectively, described domestic hot-water's heat exchanger and described water source gas-fired heat pump unit form closed circuit six, described closed circuit one, closed circuit two, closed circuit three, closed circuit four, closed circuit five and closed circuit six are all connected with domestic hot-water supply controller.
Further, described closed circuit one comprises two ground heat exchangers be connected with ground heat exchanger with described water source gas-fired heat pump unit and overhauls shut-off valve, wherein, the output of described ground heat exchanger and described ground heat exchanger overhaul between shut-off valve and are provided with underground pipe circulating pump.
Further, described closed circuit two comprises two heat recovering heat exchangers be connected with heat recovering heat exchanger with described water source gas-fired heat pump unit and overhauls shut-off valve, wherein, the output of described heat recovering heat exchanger and described heat recovering heat exchanger overhaul between shut-off valve and are provided with heat recovery cycle pump.
Further, described closed circuit three comprises two the air conditioner water motor-driven valves be connected with air conditioner end equipment with described water source gas-fired heat pump unit, wherein, is provided with air conditioner water circulating pump between the output of described air conditioner end equipment and described air conditioner water motor-driven valve.
Further, described closed circuit four comprises two the heat recovering heat exchanger motor-driven valves be connected with output with described heat recovering heat exchanger input, described heat recovering heat exchanger motor-driven valve is connected with described domestic hot-water's heat exchanger by domestic hot-water's heat exchanger motor-driven valve one, wherein, domestic hot-water's circulating pump is provided with between domestic hot-water's heat exchanger motor-driven valve one of described domestic hot-water's heat exchanger output and described heat recovering heat exchanger motor-driven valve.
Further, described closed circuit five comprises heat recovering heat exchanger, described heat recovering heat exchanger is connected with described domestic hot-water's storage tank by two heat recovering heat exchanger motor-driven valves, and is provided with domestic hot-water's circulating pump between the output of described domestic hot-water's storage tank and described heat recovering heat exchanger motor-driven valve.
Further, described closed circuit six comprises water source gas-fired heat pump unit, the input of described water source gas-fired heat pump unit is connected with described domestic hot-water's heat exchanger with domestic hot-water's heat exchanger motor-driven valve two by air conditioner water motor-driven valve successively with output, wherein, air conditioner water circulating pump is provided with between domestic hot-water's heat exchanger motor-driven valve two of described domestic hot-water's heat exchanger output and described air conditioner water motor-driven valve.
Further, described water source gas-fired heat pump unit is connected with gas emergency shut-off valve, is provided with gas meter, flow meter between described water source gas-fired heat pump unit and described gas emergency shut-off valve.
Further, described domestic hot-water's storage tank is provided with temperature sensor.
Beneficial effect of the present invention is:
1, operational efficiency is high, save energy consumption, compare existing gas engine heat pump system, the present invention uses the recirculated water after ground heat exchanger and soil to execute heat exchange as water source, the system of gas-fired heat pump and the advantages of soil source heat pump system are got up, while directly using combustion gas, improving primary energy utilization ratio, economize energy; Because underground is cool in summer and warm in winter, use the recirculated water of ground heat exchanger as water source, the efficiency that gas-fired heat pump runs can be promoted, thus reduce power consumption;
2, groundwater resources are not damaged, compare existing water source gas engine heat pump system, the present invention uses the recirculated water after ground heat exchanger and soil to execute heat exchange as water source, not exploiting groundwater, do not use surface water, do not damage groundwater resources, avoid the common fault that conventional water source heat pump system destroys underground water and surface water resources, while energy-conservation, protect water environment;
3, applicability is wide, compares existing water source gas engine heat pump system, and the present invention does not need to use underground water, surface water, as long as building periphery has certain vacant lot just can adopt;
4, automaticity is high, the present invention is provided with domestic hot-water supply controller and domestic hot-water supply controller, can carry out Based Intelligent Control, compare existing water source gas engine heat pump system to each assembly of system, recuperation of heat and to produce the automaticity of domestic hot-water high, controls science, rationally.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of a kind of soil source gas-fired heat pump heat supply according to the embodiment of the present invention, cooling and hot-water supply system.
In figure:
1, water source gas-fired heat pump unit; 2 ground heat exchangers; 3, air conditioner end equipment; 4, heat recovering heat exchanger; 5, domestic hot-water's heat exchanger; 6, domestic hot-water's storage tank; 7, underground pipe circulating pump; 8, heat recovery cycle pump; 9, domestic hot-water's circulating pump; 10, air conditioner water circulating pump; 11, domestic hot-water supply controller; 12, gas meter, flow meter; 13, gas emergency shut-off valve; 14, air conditioner water motor-driven valve; 15, domestic hot-water's heat exchanger motor-driven valve one; 16, heat recovering heat exchanger maintenance shut-off valve; 17, heat recovering heat exchanger motor-driven valve; 18, ground heat exchanger maintenance shut-off valve; 19, temperature sensor; 20, domestic hot-water's heat exchanger motor-driven valve two.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain, all belongs to the scope of protection of the invention.
As shown in Figure 1, according to a kind of soil source gas-fired heat pump heat supply of the embodiment of the present invention, cooling and hot-water supply system, comprise ground heat exchanger 2, described ground heat exchanger 2 forms closed circuit one with the water source gas-fired heat pump unit 1 be connected, described water source gas-fired heat pump unit 1 forms closed circuit two and closed circuit three with the heat recovering heat exchanger 4 be connected and air conditioner end equipment 3 respectively, described heat recovering heat exchanger 4 forms closed circuit four and closed circuit five with the domestic hot-water's heat exchanger 5 be connected and domestic hot-water's storage tank 6 respectively, described domestic hot-water's heat exchanger 5 forms closed circuit six with described water source gas-fired heat pump unit 1, described closed circuit one, closed circuit two, closed circuit three, closed circuit four, closed circuit five and closed circuit six are all connected with domestic hot-water supply controller 11.
Described closed circuit one comprises two ground heat exchangers be connected with ground heat exchanger 2 with described water source gas-fired heat pump unit 1 and overhauls shut-off valve 18, wherein, the output of described ground heat exchanger 2 and described ground heat exchanger overhaul between shut-off valve 18 and are provided with underground pipe circulating pump 7.
Described closed circuit two comprises two heat recovering heat exchangers be connected with heat recovering heat exchanger 4 with described water source gas-fired heat pump unit 1 and overhauls shut-off valve 16, wherein, the output of described heat recovering heat exchanger 4 and described heat recovering heat exchanger overhaul between shut-off valve 16 and are provided with heat recovery cycle pump 8; Wherein, described heat recovering heat exchanger maintenance shut-off valve 16 can turn off when overhauling heat exchanger, to ensure to ensure personal safety when overhauling.
Described closed circuit three comprises two the air conditioner water motor-driven valves 14 be connected with air conditioner end equipment 3 with described water source gas-fired heat pump unit 1, wherein, is provided with air conditioner water circulating pump 10 between the output of described air conditioner end equipment 3 and described air conditioner water motor-driven valve 14.
Described closed circuit four comprises two the heat recovering heat exchanger motor-driven valves 17 be connected with output with described heat recovering heat exchanger 4 input, described heat recovering heat exchanger motor-driven valve 17 is connected with described domestic hot-water's heat exchanger 5 by domestic hot-water's heat exchanger motor-driven valve 1, wherein, domestic hot-water's circulating pump 9 is provided with between domestic hot-water's heat exchanger motor-driven valve 1 of described domestic hot-water's heat exchanger 5 output and described heat recovering heat exchanger motor-driven valve 17.
Described closed circuit five comprises heat recovering heat exchanger 4, described heat recovering heat exchanger 4 is connected with described domestic hot-water's storage tank 6 by two heat recovering heat exchanger motor-driven valves 17, and is provided with domestic hot-water's circulating pump 9 between the output of described domestic hot-water's storage tank 6 and described heat recovering heat exchanger motor-driven valve 17.
Described closed circuit six comprises water source gas-fired heat pump unit 1, the input of described water source gas-fired heat pump unit 1 is connected with described domestic hot-water's heat exchanger 5 with domestic hot-water's heat exchanger motor-driven valve 2 20 by air conditioner water motor-driven valve 14 successively with output, wherein, air conditioner water circulating pump 10 is provided with between domestic hot-water's heat exchanger motor-driven valve 2 20 of described domestic hot-water's heat exchanger 5 output and described air conditioner water motor-driven valve 14.
Described water source gas-fired heat pump unit 1 is connected with gas emergency shut-off valve 13, gas meter, flow meter 12 is provided with between described water source gas-fired heat pump unit 1 and described gas emergency shut-off valve 13, described gas emergency shut-off valve 13 can shutoff gas pipeline chain with the gas detecting alarm system of fire-fighting system in building, when system jam, timely closedown whole system, avoid causing heavy losses, effectively raise the security reliability of system cloud gray model, described gas meter, flow meter 12 is generally installed by gas company, can to the use gas of system, with can situation measure, being convenient to grasp using of native system can, Energy-saving Situation.
Described domestic hot-water's storage tank 6 is provided with temperature sensor 19, and described temperature sensor 19 detects the water temperature in described domestic hot-water's storage tank 6, and information is sent to domestic hot-water supply controller 11, with the state of a control of timely adjustment System.
Wherein, the water source gas-fired heat pump unit 1 in the present invention is using the Cooling and Heat Source of buried pipe heat exchange system as water source gas-fired heat pump, and water source uses the recirculated water after described ground heat exchanger 2 with soil to execute heat exchange.
Heat recovering heat exchanger 4 in the present invention can utilize prior art to make, and the waste heat recovery of gas engine in described water source gas-fired heat pump unit 1 can be produced domestic hot-water; Under the driving of described heat recovery cycle pump 8, engine in described water source gas-fired heat pump unit 1 and flue gas cooling water flow are through described heat recovering heat exchanger 4 and the water heat exchange in described domestic hot-water's storage tank 6, described, under the driving of domestic hot-water's circulating pump 9, water in described domestic hot-water's storage tank 6 again flows through described heat recovering heat exchanger 4 and forms the circulatory system, wherein, described heat recovering heat exchanger 4 can adopt the double-tube heat exchanger or plate type heat exchanger that utilize prior art to make; Described domestic hot-water's storage tank 6 can adopt the stainless steel or galvanized steel plain sheet heat-insulation closed storage tank that utilize prior art to make.
Domestic hot-water's heat exchanger 5 in the present invention can utilize prior art to make, the air-conditioning heating water heat exchange that hot water in domestic hot-water's storage tank 6 and described water source gas-fired heat pump unit 1 provide can be produced domestic hot-water, under the driving of described air conditioner water circulating pump 10, the air-conditioning heating water that described water source gas-fired heat pump unit 1 provides with conditioning in Transition Season in the winter time flows through domestic hot-water's heat exchanger 5 and the water heat exchange in described domestic hot-water's storage tank 6; Wherein, described domestic hot-water's heat exchanger 5 can adopt the double-tube heat exchanger or plate type heat exchanger that utilize prior art to make.
The present invention is provided with described domestic hot-water supply controller 11, according to the temperature value of described temperature sensor 19, control heat recovery cycle pump 8, domestic hot-water's circulating pump 9, air conditioner water motor-driven valve 14, domestic hot-water's heat exchanger motor-driven valve 1, domestic hot-water's heat exchanger motor-driven valve 2 20 and heat recovering heat exchanger motor-driven valve 17 action, to carry out scientific and reasonable producing domestic hot-water.
During concrete use, the underground pipe circulating pump 7 in this device and air conditioner water circulating pump 10 run when described water source gas-fired heat pump unit 1 is started shooting, and it starts prior to described water source gas-fired heat pump unit.
Described domestic hot-water's heat exchanger motor-driven valve 1, domestic hot-water's heat exchanger motor-driven valve 2 20 and heat recovering heat exchanger motor-driven valve 17 are electric control valve, can according to control signal controlling opening of valve, and can according to the hydraulically balanced needs of described domestic hot-water's heat exchanger 8, air conditioner end equipment 3 and domestic hot-water's heat exchanger 5 with heat recovering heat exchanger 4, regulate in advance, pre-determine the maximum opening of setting.
Described water source gas-fired heat pump unit 1 is generally provided with four-way change-over valve, and be furnished with unit control system, in the winter time and conditioning in Transition Season, carry control system by artificial or building building Ore-controlling Role by unit and control water source gas-fired heat pump unit 1, it is switched to heat supply work condition state by cooling work condition state; Summer, unit was in cooling operating mode, heat cannot be provided for producing domestic hot-water by described domestic hot-water's heat exchanger 5, but summer, outdoor temperature was higher, water temperature is higher from the beginning, bath water temperature requirements is lower, and air conditioner load is large, and amount of consumed gas is large, the engine radiating of the gas-fired heat pump unit generally reclaimed by heat recovering heat exchanger 4 and fume afterheat can meet the heat demand of domestic hot-water, can use prior art matched with hot Water electric heater additional heat separately as still met.
Concrete control strategy is three kinds of operating modes:
(a) for cold season, when unit is in cooling operating mode, by manually setting or receive building Ore-controlling Role signal, corresponding operating mode when domestic hot-water supply controller 11 of the present invention being switched to unit cooling; Namely the present invention uses described heat recovering heat exchanger 4 that domestic hot-water is produced in the waste heat recovery of gas engine in described water source gas-fired heat pump unit 1; described heat recovery cycle pump 8 and domestic hot-water's circulating pump 9 run according to the temperature value of described domestic hot-water's case temperature sensor 19; the startup optimization when temperature value of boiler temperature sensor 19 limits setting value (such as 58 degree) lower than height, boiler temperature sensor 19 temperature value is limit time setting value (such as 58 degree) higher than height and is shut down.
When being reduced to lower bound setting value (such as 45 degree) under boiler temperature value continues, described domestic hot-water supply controller 11 externally heater (such as electric heater) sends enabling signal, starts the hot water in external heater heating domestic hot water case 6.External heater (such as electric heater) can be existing electric water heater, not as part of the present invention.Meanwhile, supplying cold season, described heat recovering heat exchanger motor-driven valve 17 is maximum opening opening, and described domestic hot-water's heat exchanger motor-driven valve 1 and domestic hot-water's heat exchanger motor-driven valve 2 20 are closed, and described air conditioner water motor-driven valve 14 is held open not influential system cooling.
(b) in the winter time or conditioning in Transition Season, when unit is in for thermal condition, by manually setting or receive building Ore-controlling Role signal, by domestic hot-water supply controller 11 of the present invention be switched to unit heat supply time corresponding operating mode; Namely the present invention preferentially uses described heat recovering heat exchanger 4 that domestic hot-water is produced in the waste heat recovery of gas engine in described water source gas-fired heat pump unit 1; described heat recovery cycle pump 8 and domestic hot-water's circulating pump 9 run according to the temperature value of described domestic hot-water's case temperature sensor 19; the startup optimization when temperature value of boiler temperature sensor 19 limits setting value (such as 58 degree) lower than height, the temperature value of boiler temperature sensor 19 is limit time setting value (such as 58 degree) higher than height and is shut down.
When being reduced to low level setting value (such as 45 degree) under boiler temperature value continues, described domestic hot-water supply controller 11 sends start signal to described domestic hot-water's heat exchanger motor-driven valve 1 and domestic hot-water's heat exchanger motor-driven valve 2 20, and confirm the running status of described water source gas-fired heat pump unit 1 and described air conditioner water circulating pump 10, described heat recovering heat exchanger motor-driven valve 17 remains maximum opening opening, and described domestic hot-water's heat exchanger motor-driven valve 15 is opened with minimum aperture when opening, under the driving of described air conditioner water circulating pump 10, the air conditioning hot part that described water source gas-fired heat pump unit 1 provides flows to described air conditioner end equipment 3, another part bypass flows through domestic hot-water's heat exchanger 5 and the water heat exchange in described domestic hot-water's storage tank 6, produce domestic hot-water.
After air conditioning hot water supply bypass, the return water temperature of air conditioning hot declines, the unit control system that described water source gas-fired heat pump unit 1 carries can increase the heating load of unit automatically according to the change of return water temperature, ensure that indoor air-conditioning effect and hot water produce effect, after opening domestic hot-water's heat exchanger motor-driven valve 1 and domestic hot-water's heat exchanger motor-driven valve 2 20 with minimum aperture, the temperature value of domestic hot-water's case temperature sensor 19 continues to drop to preset lower limit (such as 42 degree), then described domestic hot-water supply controller 11 sends control instruction to described domestic hot-water's heat exchanger motor-driven valve 1 and domestic hot-water's heat exchanger motor-driven valve 2 20, domestic hot-water's heat exchanger motor-driven valve 1 and domestic hot-water's heat exchanger motor-driven valve 2 20 is opened with the maximum opening of setting, increase described domestic hot-water's heat exchanger 5 circulating water flow, then its heat exchange amount is increased.
C () is at conditioning in Transition Season, when air conditioning system for building is shut down, set described water source gas-fired heat pump unit 1 for supplying thermal condition, and by artificial setting or reception building Ore-controlling Role signal, domestic hot-water supply controller 11 of the present invention is switched to corresponding operating mode when air-conditioning system is shut down, namely, described in the present invention uses, the air-conditioning and water-heating that the hot water of water source gas-fired heat pump unit 1 supplies water and the waste heat recovery of interior gas engine and unit provide produces domestic hot-water simultaneously; Described water source gas-fired heat pump unit 1, heat recovery cycle pump 8, domestic hot-water's circulating pump 9 and air conditioner water circulating pump 10 run according to the temperature value of domestic hot-water's case temperature sensor 19; the temperature value of boiler temperature sensor 19 is limit lower than height and is started heat recovery cycle pump 8, domestic hot-water's circulating pump 9 and air conditioner water circulating pump 10 time setting value (such as 58 degree) and run, the shutdown when temperature value of boiler temperature sensor 19 limits setting value (such as 58 degree) higher than height.Described domestic hot-water's heat exchanger motor-driven valve 1 and domestic hot-water's heat exchanger motor-driven valve 2 20 keep maximum opening to open always, and described heat recovering heat exchanger motor-driven valve 17 is also opened with the maximum opening of setting.
Wherein, described heat recovering heat exchanger motor-driven valve 17 is opened with the maximum opening of setting, refer to so that described domestic hot-water's heat exchanger 5 and air conditioner end equipment 3 can be ensured, the hydraulically balanced of domestic hot-water's heat exchanger 5 and heat recovering heat exchanger 4 need for standard and the maximum opening that sets is opened, this aperture can when building embody rule, according to the concrete condition of air conditioning system for building and hot-water heating system, determine after carrying out water force by prior art.
Described domestic hot-water supply controller 11 can use prior art to make, and such as uses the intelligent controller based on general PLC to make, and the developing instrument that control program can use PLC producer supporting is worked out according to the control strategy of above-mentioned three kinds of operating modes.
Described domestic hot-water's case temperature sensor 19 can use Pt100 RTD, supporting temperature transmitter is made, and can transmit the hot water temperature in domestic hot-water's storage tank 6 to domestic hot-water supply controller 11.
Compared to existing gas engine heat pump system, it is high that this device has operational efficiency, save the special of energy consumption, and by using the recirculated water after ground heat exchanger and soil to execute heat exchange as water source, the system of gas-fired heat pump and the advantages of soil source heat pump system are got up, while directly using combustion gas, improving primary energy utilization ratio, economize energy; Because underground is cool in summer and warm in winter, use the recirculated water of ground heat exchanger as water source, the efficiency that gas-fired heat pump runs can be promoted, thus reduce power consumption.
In addition; compare existing water source gas engine heat pump system; this device also has the feature not damaging groundwater resources; by using the recirculated water after ground heat exchanger and soil to execute heat exchange as water source; not exploiting groundwater, does not use surface water, does not damage groundwater resources; avoid the common fault that conventional water source heat pump system destroys underground water and surface water resources, while energy-conservation, protect water environment.
Compare existing water source gas engine heat pump system, the present invention does not need to use underground water, surface water, as long as building periphery has certain vacant lot just can adopt, applicability is wide; And this device also has the high feature of automaticity, by being provided with domestic hot-water supply controller and domestic hot-water supply controller, Based Intelligent Control can be carried out to each assembly of system, compare existing water source gas engine heat pump system, recuperation of heat and to produce the automaticity of domestic hot-water high, controls science, rationally.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. soil source gas-fired heat pump heat supply, cooling and hot-water supply system, comprise ground heat exchanger (2), it is characterized in that, described ground heat exchanger (2) forms closed circuit one with water source gas-fired heat pump unit (1) be connected, described water source gas-fired heat pump unit (1) forms closed circuit two and closed circuit three with the heat recovering heat exchanger be connected (4) and air conditioner end equipment (3) respectively, described heat recovering heat exchanger (4) forms closed circuit four and closed circuit five with the domestic hot-water's heat exchanger (5) be connected and domestic hot-water's storage tank (6) respectively, described domestic hot-water's heat exchanger (5) and described water source gas-fired heat pump unit (1) form closed circuit six, described closed circuit one, closed circuit two, closed circuit three, closed circuit four, closed circuit five and closed circuit six are all connected with domestic hot-water supply controller (11).
2. soil source gas-fired heat pump according to claim 1 heat supply, cooling and hot-water supply system, it is characterized in that, described closed circuit one comprises two ground heat exchangers be connected with ground heat exchanger (2) with described water source gas-fired heat pump unit (1) and overhauls shut-off valve (18), wherein, the output of described ground heat exchanger (2) and described ground heat exchanger overhaul between shut-off valve (18) and are provided with underground pipe circulating pump (7).
3. soil source gas-fired heat pump according to claim 1 heat supply, cooling and hot-water supply system, it is characterized in that, described closed circuit two comprises two heat recovering heat exchangers be connected with heat recovering heat exchanger (4) with described water source gas-fired heat pump unit (1) and overhauls shut-off valve (16), wherein, the output of described heat recovering heat exchanger (4) and described heat recovering heat exchanger overhaul between shut-off valve (16) and are provided with heat recovery cycle pump (8).
4. soil source gas-fired heat pump according to claim 1 heat supply, cooling and hot-water supply system, it is characterized in that, described closed circuit three comprises two the air conditioner water motor-driven valves (14) be connected with air conditioner end equipment (3) with described water source gas-fired heat pump unit (1), wherein, air conditioner water circulating pump (10) is provided with between the output of described air conditioner end equipment (3) and described air conditioner water motor-driven valve (14).
5. soil source gas-fired heat pump according to claim 1 heat supply, cooling and hot-water supply system, it is characterized in that, described closed circuit four comprises two the heat recovering heat exchanger motor-driven valves (17) be connected with output with described heat recovering heat exchanger (4) input, described heat recovering heat exchanger motor-driven valve (17) is connected with described domestic hot-water's heat exchanger (5) by domestic hot-water's heat exchanger motor-driven valve one (15), wherein, domestic hot-water's circulating pump (9) is provided with between domestic hot-water's heat exchanger motor-driven valve one (15) of described domestic hot-water's heat exchanger (5) output and described heat recovering heat exchanger motor-driven valve (17).
6. soil source gas-fired heat pump according to claim 1 heat supply, cooling and hot-water supply system, it is characterized in that, described closed circuit five comprises heat recovering heat exchanger (4), described heat recovering heat exchanger (4) is connected with described domestic hot-water's storage tank (6) by two heat recovering heat exchanger motor-driven valves (17), and is provided with domestic hot-water's circulating pump (9) between the output of described domestic hot-water's storage tank (6) and described heat recovering heat exchanger motor-driven valve (17).
7. soil source gas-fired heat pump according to claim 1 heat supply, cooling and hot-water supply system, it is characterized in that, described closed circuit six comprises water source gas-fired heat pump unit (1), the input of described water source gas-fired heat pump unit (1) is connected with described domestic hot-water's heat exchanger (5) with domestic hot-water's heat exchanger motor-driven valve two (20) by air conditioner water motor-driven valve (14) successively with output, wherein, air conditioner water circulating pump (10) is provided with between domestic hot-water's heat exchanger motor-driven valve two (20) of described domestic hot-water's heat exchanger (5) output and described air conditioner water motor-driven valve (14).
8. soil source gas-fired heat pump as claimed in any of claims 1 to 7 heat supply, cooling and hot-water supply system, it is characterized in that, described water source gas-fired heat pump unit (1) is connected with gas emergency shut-off valve (13), is provided with gas meter, flow meter (12) between described water source gas-fired heat pump unit (1) and described gas emergency shut-off valve (13).
9. soil source gas-fired heat pump as claimed in any of claims 1 to 7 heat supply, cooling and hot-water supply system, is characterized in that, described domestic hot-water's storage tank (6) is provided with temperature sensor (19).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410749434.1A CN104613674B (en) | 2014-12-09 | 2014-12-09 | Soil source fuel gas heat pump supplying heat, cool and hot water system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410749434.1A CN104613674B (en) | 2014-12-09 | 2014-12-09 | Soil source fuel gas heat pump supplying heat, cool and hot water system |
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| CN104613674A true CN104613674A (en) | 2015-05-13 |
| CN104613674B CN104613674B (en) | 2017-04-19 |
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| CN201410749434.1A Expired - Fee Related CN104613674B (en) | 2014-12-09 | 2014-12-09 | Soil source fuel gas heat pump supplying heat, cool and hot water system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105091438A (en) * | 2015-09-24 | 2015-11-25 | 宝莲华新能源技术（上海）有限公司 | Constant-temperature control system for domestic hot water of total-heat recovery ground source heat pump air conditioner |
| CN107702249A (en) * | 2017-09-25 | 2018-02-16 | 山西三水能源股份有限公司 | The cold-heat combined system of intelligent control |
| CN114370722A (en) * | 2022-01-24 | 2022-04-19 | 山西新源谷能源科技有限公司 | Air energy and geothermal energy integrated heat pump unit |
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| JP2005214519A (en) * | 2004-01-29 | 2005-08-11 | Denso Corp | Heat pump type hot water supply cooling device |
| CN103776199A (en) * | 2014-01-08 | 2014-05-07 | 中铁建设集团有限公司 | Soil source fuel gas heat pump system with heat balance active recovery function |
| CN204388415U (en) * | 2014-12-09 | 2015-06-10 | 中铁建设集团有限公司 | The heat supply of soil source gas-fired heat pump, cooling and hot-water supply system |
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2014
- 2014-12-09 CN CN201410749434.1A patent/CN104613674B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005214519A (en) * | 2004-01-29 | 2005-08-11 | Denso Corp | Heat pump type hot water supply cooling device |
| CN103776199A (en) * | 2014-01-08 | 2014-05-07 | 中铁建设集团有限公司 | Soil source fuel gas heat pump system with heat balance active recovery function |
| CN204388415U (en) * | 2014-12-09 | 2015-06-10 | 中铁建设集团有限公司 | The heat supply of soil source gas-fired heat pump, cooling and hot-water supply system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105091438A (en) * | 2015-09-24 | 2015-11-25 | 宝莲华新能源技术（上海）有限公司 | Constant-temperature control system for domestic hot water of total-heat recovery ground source heat pump air conditioner |
| CN107702249A (en) * | 2017-09-25 | 2018-02-16 | 山西三水能源股份有限公司 | The cold-heat combined system of intelligent control |
| CN114370722A (en) * | 2022-01-24 | 2022-04-19 | 山西新源谷能源科技有限公司 | Air energy and geothermal energy integrated heat pump unit |
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| Publication number | Publication date |
|---|---|
| CN104613674B (en) | 2017-04-19 |
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Effective date of registration: 20180702 Address after: 100040 Shijingshan Road, Shijingshan District, Shijingshan District, Beijing Co-patentee after: CHINA RAILWAY CONSTRUCTION GROUP BEIJING ENGINEERING Co.,Ltd. Patentee after: CHINA RAILWAY CONSTRUCTION GROUP Co.,Ltd. Address before: 100131 Shijingshan Road, Shijingshan District, Shijingshan District, Beijing Patentee before: CHINA RAILWAY CONSTRUCTION GROUP Co.,Ltd. |
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