CN202792751U - Buried pipe and control system of cooling tower ground source heat pump compound system - Google Patents
Buried pipe and control system of cooling tower ground source heat pump compound system Download PDFInfo
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- CN202792751U CN202792751U CN 201220500795 CN201220500795U CN202792751U CN 202792751 U CN202792751 U CN 202792751U CN 201220500795 CN201220500795 CN 201220500795 CN 201220500795 U CN201220500795 U CN 201220500795U CN 202792751 U CN202792751 U CN 202792751U
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Abstract
The utility model discloses a buried pipe and a control system of a cooling tower ground source heat pump compound system. The buried pipe and the control system of a cooling tower ground source heat pump compound system aim at specific characteristics of an individual ground source heat pump compound system, combine a local meteorological parameter, and confirm control strategy and a specific control parameter by dynamic simulation and optimizing of whole year operation of a whole system. The control system takes the difference between fluid temperature of a heat pump condenser outlet and atmosphere wet bulb temperature as the main control variable quantity, takes fluid temperature of a heat pump condenser inlet as the auxiliary control variable quantity, enables a buried pipe heat exchanger to be matched with a cooling tower by optimizing and controlling starting and stopping of the cooling tower, achieves energy-saving operation of the ground source heat pump compound system, and guarantees annual hot and cold load balance of underground environment. Therefore, specific components and control logic of the control system are provided. For checking cold and hot balance of the underground environment, the control system further comprises a detection device which accumulates the cold and hot quantity of the buried pipe heat exchanger.
Description
Technical field
The utility model relates to a kind of for building provides the control technology of ground source heat pump composite system heat supply and air-conditioning, that be comprised of ground heat exchanger and auxiliary radiating device cooling tower, particularly is related to the control system that realizes the annual load balance of ground heat exchanger and the operation of ground source heat pump composite system energy saving optimizing.
Background technology
Buried pipe ground-source heat pump system passes through at the embedded underground pipeline, consist of " geothermal heat exchanger ", make the earth become the Cooling and Heat Source of heat pump, satisfy refrigeration in summer, winter for the needs that warm up the supply domestic hot-water, and reach the purpose of energy-saving run, can effectively improve primary energy ratio, reduce the discharging of the pollutant that greenhouse gases CO2 and other burning produce, be energy-conservation a, water saving, pollution-free, reproducible environmental protection refrigerating and heat-supplying new technology.
Common earth-source hot-pump system by closed loop ground heat exchanger summer to soil release heat, winter absorbing heat from soil, realize the building cold and heat supply by heat pump.The weather conditions of the cooling and heating load of building and building present position and building self structure and operating position are relevant, and generally the cooling and heating load of ground heat exchanger whole year is unbalanced.Building in the north thing thermic load is much larger than refrigeration duty, and southern situation is then opposite.If the heat absorption and release of ground heat exchanger is uneven, unnecessary heat (or cold) will in underground accumulation, cause the variation of underground year-round average temperature.Residential architecture and office building for area cold in winter and hot in summer, and the large commercial of a large amount of non-severe cold areas building, their refrigeration duty is more much bigger than thermic load, is that refrigeration duty is dominant, and namely the annual heat of discharging of heat pump is much larger than the heat that absorbs.Single ground heat exchanger will make the heat that extracts from soil and the heat that enters soil uneven as the Cooling and Heat Source of system, long term can make the soil moisture raise and then heat pump inflow temperature in summer is raise, thereby the reduction systematic function, even make thrashing.Therefore should use ground source heat pump composite system in the dominant building of refrigeration duty, press building thermic load design ground heat exchanger, by getting rid of the unnecessary refrigeration duty of building with cooling tower or other auxiliary radiating devices, make the ground heat exchanger load balance of the whole year.Open type or closed cooling tower are modal auxiliary radiating devices in the ground source heat pump composite system.Owing to by the length of less thermic load design ground heat exchanger, reduced the buried pipe length of ground heat exchanger, reduced the initial cost of system and improved systematic function by the year imbalance of compensation underground pipe load.In addition, owing to reduced the buried pipe length of ground heat exchanger, ground source heat pump composite system also can be used on because of geological conditions and floor area restriction does not have enough space mounting can satisfy the occasion of the ground heat exchanger of building refrigeration duty.
Different from the system of most of real-time parameter controls, ground source heat pump composite system on the one hand its service condition is transient change, but its control target is the effect of the annual accumulation of its system's operation; This is with regard to for the Real-Time Control Strategy of initialization system causes very large difficulty, to such an extent as to existing about this hybrid system technological achievement and patent in all propose conscientiously to solve the cold and hot balance of underground environment whole year and the energy saving optimizing of system is system control strategy and the scheme of target.
The ground source heat pump composite system and the load balance control problem thereof that add cooling tower for underground pipe, some patents have been arranged: " a kind of optimized control device of cooling tower assisted soil source heat pump cold supply system, application number: 200720097110.X " is on the content with present patent application immediate one.But the main length of this patent application is used for describing the hardware formation of hybrid system, and is significantly not enough in the control strategy existence of system.Switching between the import and export water temperature decision systems operational mode of the system loading that this patent proposes to survey and heat pump and cooling tower, to all system's settings and meteorological condition all the up and down thresholding of regulation control parameter be 9 ℃ and 5 ℃.Such control strategy is not considered the problem of the annual load balance of ground heat exchanger fully, although because there is the auxiliary heat dissipation effect of cooling tower must alleviate underground imbalance, can't guarantee by this control the load balance of ground heat exchanger.In addition, this patent in control logic potentially the heat-sinking capability of buried tube heat exchanger and cooling tower all be constant, also obviously and their design and operation rule be not inconsistent.Will be for the concrete characteristics of ground source heat pump composite system out of the ordinary and in conjunction with local meteorologic parameter in the application's control method, by the dynamic analog to the whole system whole year operation, energy-saving run take the annual load balance of ground heat exchanger and system carries out system optimization as target, determines the thresholding of control strategy and specific control parameter.By setting up system's dynamic mathematical models, system's whole year operation is carried out dynamic analog and optimization.On a large amount of bases of calculating and studying, the application proposes poor (this parameter is the key parameter that affect efficiency of cooling tower) take heat pump cooling water outlet temperature and outdoor wet-bulb temperature as main control parameters, controls parameter take heat pump cooling water inlet temperature (this parameter is the key parameter that guarantees heat pump reliability service and decision heat pump efficiency) as assisting.The setting of these parameters and thresholding thereof is all decided by dynamic analog and optimization for particular system.Therefore, on the general thought and concrete grammar of control method, the application and above-mentioned patent have the difference of essence.
" earth source heat pump self adaptation thermal equilibrium control system, application number: 201110076045.3 " proposes difference take underground pipe outlet temperature and outdoor wet-bulb temperature as the control parameter, and artificially the thresholding of setup control is 3-7 ℃.In order to realize underground load balance, by the actual measurement to service data the previous year, the operation strategy of next year is adjusted, be referred to as " self adaptation ".This method need to be carried out to system the adjustment of several years, and can't take the energy saving optimizing operation control of system into account.
" a kind of thermal equilibrium rate tester for ground source heat pump, application number: 201120269506.4 " simple cooling and heating load by the annual accumulation of actual measurement ground heat exchanger, " supplying the follow-up corresponding improvement of carrying out " do not propose control method and strategy.Be noted that the control system that present patent application proposes has also comprised the checkout gear of the cold and hot amount of accumulative total, but just as the check effect to theoretical model and control effect, guarantee the reliability of control system, do not become the main body of control method.
" vertical buried pipe type ground source heat pump hot water and air-conditioning system; application number: 201120361977.8 " proposed refrigeration duty is adopted hybrid system with cooling tower much larger than the earth-source hot-pump system of thermic load, for control problem, only propose the start and stop by the control system by-pass valve control, do not propose substantial control program.
The utility model content
To achieve these goals, the utility model adopts following technical scheme:
The control system of a kind of underground pipe and cooling tower ground source heat pump composite system, it serves the ground source heat pump composite system that comprises heat pump, ground heat exchanger, cooling tower, indoor air-conditioning system as a part.
The utility model makes it cooperate the energy-saving run of realizing ground source heat pump composite system with ground heat exchanger by the start and stop of the auxiliary radiating device cooling tower in the optimal control ground source heat pump composite system, and guarantees the cold and hot in a basic balance of underground environment whole year.The utility model proposes the concrete characteristics for ground source heat pump composite system out of the ordinary, the meteorologic parameter of combination locality, determine control strategy and specifically control parameter by dynamic analog and the optimization of whole system whole year operation.Control system adopts take heat pump, underground pipe and cooling tower as controlled device, take the difference of heat pump condenser outlet fluid temperature (F.T.) and atmospheric moisture bulb temperature as the major control variable, take heat pump condenser inlet fluid temperature for assisting control variables, the formation control logic.Each setting of controlling parameter values need to obtain through system's dynamic optimization simulation according to the configuration of the specific meteorologic parameter in locality, building load and system, should be as the setup parameter of inputting in the Engineering Control software that is applied to real system.For checking the cold and hot balance of underground environment, control system has also comprised the checkout gear of the cold and hot amount of accumulative total.
The control system of a kind of underground pipe and cooling tower ground source heat pump composite system, it comprises the temperature sensor that is installed in heat pump condenser outlet, heat pump condenser porch fluid, be installed in the wet bulb temperature sensor of the outdoor measurement air ' s wet bulb temperature of cooling tower, difference with heat pump outlet fluid temperature (F.T.) and outdoor wet-bulb temperature is sent into controller as main control parameter, temperature with the heat pump inlet fluid is controlled parameter as assisting, and sends into controller;
In ground heat exchanger outlet and entrance detection and the capacity checking device that adds up the cold and hot amount of fluid is set, obtain the heat that heat that the fluid accumulative total in the ground heat exchanger extracts winter and the accumulative total of the fluid in the ground heat exchanger enter soil summer from soil, as the check signal of the annual load balance of ground heat exchanger;
Controller controls respectively cooling tower according to each temperature data that gathers and opens or cut out.
The detection of the cold and hot amount of described accumulative total and capacity checking device comprise the thermal resistance of measuring ground heat exchanger outlet and inlet water temperature and the flow sensor of measuring the ground heat exchanger flow.
Described controller employing DDC mode is controlled cooling tower and is started and stop, and controller is connected with printing equipment, demonstration and outer setting device.
The described cooling water circulation water pump that between ground heat exchanger and heat pump, is provided with, be provided with the chilled water water circulating pump in the heat pump condenser porch, between plate type heat exchanger and cooling tower, be provided with water pump, the top of cooling tower is provided with blower fan, and cooling water circulation water pump, chilled water water circulating pump, water pump and blower fan all are connected with controller.
Open first water pump when described cooling tower is opened, open again blower fan, when described cooling tower stops, closing first blower fan, switch off the pump again.
Based on a kind of underground pipe of the control system of described underground pipe and cooling tower ground source heat pump composite system and the control method of cooling tower ground source heat pump composite system, it is according to the part throttle characteristics of building, the setting of meteorologic parameter and ground source heat pump composite system, take the energy saving optimizing of the cold and hot balance of annual underground environment and ground source heat pump composite system as target, whole year operation to whole ground source heat pump composite system carries out dynamic analog and optimization, determine control strategy and control parameter, take the difference of heat pump outlet fluid temperature (F.T.) and air ' s wet bulb temperature as main control parameters, control parameter take heat pump inlet fluid temperature for assisting; Each setting of controlling parameter values need to obtain through the ground source heat pump composite system dynamic optimization simulation according to the configuration of the specific meteorologic parameter in locality, building load and system, as the setup parameter of inputting in the Engineering Control software that is applied to real system out of the ordinary.
The control method of described a kind of underground pipe and cooling tower ground source heat pump composite system, concrete steps are:
Step 1: gather heat pump condenser inlet fluid temperature T
HPI, heat pump condenser outlet fluid temperature (F.T.) T
HPOWith outdoor wet-bulb temperature T
Wb
Step 2: to heat pump condenser inlet fluid temperature T
HPI, heat pump condenser outlet fluid temperature (F.T.) T
HPOWith outdoor wet-bulb temperature T
WbCarry out corresponding comparison, comparative result is controlled the opening and closing of cooling tower; Cooling tower keeps closing, and then returns step 1, enters step 3 if open cooling tower;
Step 3: open cooling tower, gather heat pump condenser inlet fluid temperature T
HPI, heat pump condenser outlet fluid temperature (F.T.) T
HPOWith outdoor wet-bulb temperature T
Wb
Step 4: heat pump condenser inlet fluid temperature T
HPIWith heat pump condenser outlet fluid temperature (F.T.) T
HPOSubtract each other acquired results and compare with the S1-Δ, if then keep cooling tower operation greater than the S1-Δ, if less than S1-Δ jump procedure five then;
Step 5: heat pump condenser inlet fluid temperature T
HPICompare with the S1-Δ, if then keep cooling tower operation then to return for the 5th step greater than the S1-Δ, close cooling tower if survey less than the S1-Δ, return step 1 after closing cooling tower.
The concrete steps of described step 2 are:
(2-1): if heat pump condenser outlet fluid temperature (F.T.) T
HPOGreater than heat pump condenser inlet fluid temperature T
HPI, then jump to (2), otherwise keep cooling tower to close, then return step 1;
(2-2): heat pump condenser outlet fluid temperature (F.T.) T
HPOWith outdoor wet-bulb temperature T
WbSubtract each other, then compare with S1, if greater than S1, then open cooling tower, if less than then redirect (2-3);
(2-3): heat pump condenser inlet fluid temperature T
HPICompare with S2, if then open cooling tower greater than S2; If then keep cooling tower to close less than S2, then return step 1.
The beneficial effects of the utility model:
Adopt control technology of the present utility model can give full play to underground pipe and the usefulness of cooling tower in ground source heat pump composite system, effectively reduce the operation energy consumption of ground source heat pump composite system, the economy of optimization ground source heat pump composite system, guarantee simultaneously the underground environment cold and hot balance of the whole year, guarantee that ground source heat pump composite system moves reliably and with long-term.
Description of drawings
Fig. 1 is typical underground pipe and cooling tower ground source heat pump composite system structural representation;
Fig. 2 is the control flow chart of underground pipe and cooling tower ground source heat pump composite system;
Fig. 3 is the control system block diagram of underground pipe and cooling tower ground source heat pump composite system.
Wherein, 1. heat pump, 2. ground heat exchanger, 3. fan coil, 4. chilled water water circulating pump, 5. cooling water circulation water pump, 6. elevated tank, 7. plate type heat exchanger, 8. cooling tower, 9. two-position controller I, 10. two-position controller II, 11. controllers, 12. selectors, 14. transmitter II, 15. transmitter I.
The specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing and embodiment.
The control system of a kind of underground pipe and cooling tower ground source heat pump composite system, it serves the ground source heat pump composite system that comprises heat pump 1, ground heat exchanger 2, cooling tower 8, indoor air-conditioning system as a part, be embodied as the purpose of building heat supplying and air-conditioning, described indoor air-conditioning system is comprised of fan coil 3, wherein, ground heat exchanger 2, heat pump 1 are connected with fan coil and also are connected with elevated tank 6 respectively.
Describedly between ground heat exchanger 2 and heat pump 1, be provided with cooling circulating water pump 5,1 condenser inlet place is provided with chilled water water circulating pump 4 at heat pump, between plate type heat exchanger 7 and cooling tower 8, be provided with water pump, the top of cooling tower 8 is provided with blower fan, and cooling water circulation water pump 5, chilled water water circulating pump 4, water pump and blower fan all are connected with controller
Open first water pump when described cooling tower 8 is opened, open again blower fan, when described cooling tower 8 stops, closing first blower fan, switch off the pump again.
1. the method for underground pipe/cooling tower ground source heat pump composite system optimal control
At first, air conditioner load in the time of need to calculating its annual pursuing to the specific buildings of particular locality, the existing ripe business software of the work of this part can adopt, and comprises the DEST software of China's independent development.
Secondly, each part to whole ground source heat pump composite system, be heat pump 1, ground heat exchanger 2, auxiliary heat dissipation equipment foundation calculating Mathematical Modeling, coding carries out it is calculated that by the luck line number to each module, realizes the annual simulation of energy consumption to whole ground source heat pump composite system the whole year.
Then, adjust the geothermal heat exchanger of ground source heat pump composite system and the cold proportioning of auxiliary heat dissipation equipment, select the design of different ground source heat pump composite systems for the same building thing, operation simulation of energy consumption when doing annual pursuing, calculate its operating cost and ground source heat pump composite system initial cost, ground source heat pump composite system is in optimized selection.
At last, for operation control strategy and the control parameter of specific ground source heat pump composite system by changing auxiliary heat dissipation equipment, calculate by the annual hourly simulation to whole ground source heat pump composite system, carry out multi-scheme relatively and calculate optimizing, determine the control strategy and the control parameter that guarantee the underground cold balancing the load and realize the operation of most economical system.
2. the formation of control system
The utility model mainly for the heat radiation of heat pump refrigerating operating mode take ground heat exchanger 2 as main, take cooling tower 8 as auxiliary ground source heat pump composite system; From the control angle analysis, ground heat exchanger 2 and cooling tower 8 ground source heat pump composite systems have the characteristics of many interference and multi-state.For the cold and hot balance that realizes annual underground environment and the energy saving optimizing of system, the concrete operation control strategy of determining according to the dynamic analog result of calculation of the ground source heat pump composite system Optimal Control Theory of setting up is:
(1) during whole ground source heat pump composite system cold start-up, opens ground heat exchanger 2, close cooling tower 8, after ground source heat pump composite system starts 30 minutes, enter normal control program.
(2) to run on cooling condition be heat pump 1 condensator outlet fluid temperature (F.T.) (T to control system
HPO) be higher than heat pump 1 condenser inlet fluid temperature (F.T.) (T
HPI) time, as heat pump 1 condensator outlet fluid temperature (F.T.) T
HPOWith outdoor wet-bulb temperature T
WbDifference open cooling tower 8 during greater than S1 ℃, use cooling tower 8 and ground heat exchanger 2 jointly as low-temperature receiver; Difference is closed cooling tower 8 during less than S1-Δ ℃, only uses ground heat exchanger 2 as low-temperature receiver.S1 is the startup value of main control parameters, and Δ is the change thresholding of control parameter.
(3) work as T
HPI Open cooling tower 8 when being higher than S2 ℃, close cooling tower 8 when being lower than S2-Δ ℃, to guarantee the normal operation of heat pump 1 unit.S2 is the startup value of auxiliary control parameter, and Δ is the change thresholding of control parameter.
Above-mentioned cooling tower on off control strategy (3) is the supplementary condition of control strategy (2), and its control logic is:
I) before cooling tower is opened: when control strategy (2) judgement needs to open cooling tower 8, open cooling tower 8; When strategy (2), (3) judge that all needs are opened cooling tower 8, open cooling tower 8; Judge when control strategy (2) to need not to open cooling tower 8, but control strategy (3) is judged and is opened cooling tower 8 when needing to open cooling tower 8;
Ii) after cooling tower 8 is opened, judge when control strategy (2) and need close cooling tower 8, but control strategy (3) judges when needing to open cooling tower 8, keep cooling tower 8 to continue operation; Only have and all judge when control strategy (2) and (3) and to close cooling tower 8 need close cooling tower 8 time.
The control system of ground heat exchanger 2 and cooling tower 8 ground source heat pump composite systems adopts automatic selection control system, and its theory diagram as shown in Figure 3.Control system adopts micro-processor controlled Direct Digital control (DDC), belongs to FEEDBACK CONTROL, take heat pump 1 and cooling tower 8 as controlled device.Poor (T with heat pump 1 condensator outlet fluid temperature (F.T.) and outdoor wet-bulb temperature
HPO-T
Wb) be the major control variable, with heat pump 1 condenser inlet fluid temperature (F.T.) (T
HPI) for assisting control variables.Adopt two two-position controllers to realize that dull district is as cooling tower 8 on off controls of Δ to cooling tower 8 on-off circuits.
The actuator of control system adopts the DDC mode to control motor and electric gate valve, with the start and stop of control cooling tower 8.The start and stop of cooling tower 8 sequentially are: open first water pump P1 during unlatching, open cat head blower fan F1 again, close first cat head blower fan F1 during shutdown, P1 again switches off the pump.
The sensor of control system mainly comprises following several, its concrete installation site as shown in Figure 1:
1) wet bulb temperature sensor of measurement cooling tower sections outer air wet-bulb temperature;
2) thermal resistance (can adopt armouring PT100 thermal resistance) of measurement ground heat exchanger gateway water temperature, heat pump condenser and evaporimeter gateway water temperature, cooling tower outlet water temperature;
3) sensor (can adopt turbine flowmeter) of measurement ground heat exchanger flow and cooling tower flow;
4) cooling water circulation water pump 5, the chilled water water circulating pump 4 of chilled water and the power sensor (can be combined with current transformer and three phases active power transmitter) of heat pump 1 unit operation power of measurement cooling water.
3. cold and hot amount calibration equipment
As shown in Figure 1, be typical underground pipe and cooling tower ground source heat pump composite system structural representation, typical underground pipe and cooling tower ground source heat pump composite system comprise heat pump 1, ground heat exchanger 2, fan coil 3, chilled water water circulating pump 4, cooling water circulation water pump 5, elevated tank 6, plate type heat exchanger 7 and cooling tower, ground source heat pump composite system has been installed detection and the capacity checking device that independently adds up cold and hot amount, be used for measuring by ground heat exchanger respectively and enter the heat of soil and the heat that extracts from soil winter summer, with proof theory model and control strategy, guarantee that ground source heat pump composite system realizes the cold and hot balance of annual underground environment in actual motion.
Detection and the capacity checking device of the cold and hot amount of accumulative total comprise two thermal resistances measuring ground heat exchanger gateway water temperature, and measure the flow sensor of ground heat exchanger flow.Be admitted to after the signal of these sensor collections is changed by A/D and calculate cold and hot amount in the microcomputer.When inlet water temperature was lower than the outlet water temperature, accumulative total entered the heat (cold) that extracts winter from soil; When inlet water temperature was higher than the outlet water temperature, accumulative total entered to enter the heat (heat) of soil summer.Size by comparison system operation (through a Heating Season and a confession cold season) cold and hot amount accumulative total numerical value after 1 year is judged the cold and hot balance of underground environment.
As shown in Figure 3, the control system of a kind of underground pipe and cooling tower ground source heat pump composite system, the temperature sensor in described underground pipe and the cooling tower ground source heat pump composite system gathers respectively heat pump condenser outlet fluid temperature (F.T.) T
HPOWith heat pump condenser inlet fluid temperature T
HP1, temperature sensor is with the temperature T that collects
HPOAnd T
HP1Send into respectively transmitter II14 and transmitter I15 through the A/D conversion, the result that data by transmitter I15 and transmitter II14 obtain after respective handling controls respectively two-position controller II10, two-position controller I9 and controller 11, two-position controller I9 and two-position controller II10 and controller 11 control selectors 12, selector 12 is according to the information control cooling tower 8 of corresponding two-position controller and controller 11, and cooling tower 8 is connected with heat pump 1.
Although above-mentionedly by reference to the accompanying drawings the specific embodiment of the present utility model is described; but be not the restriction to the utility model protection domain; one of ordinary skill in the art should be understood that; on the basis of the technical solution of the utility model, those skilled in the art do not need to pay various modifications that creative work can make or distortion still in protection domain of the present utility model.
Claims (4)
1. the control system of a underground pipe and cooling tower ground source heat pump composite system, it is characterized in that, it comprises the temperature sensor that is installed in heat pump condenser outlet, heat pump condenser porch fluid, be installed in the wet bulb temperature sensor of the outdoor measurement air ' s wet bulb temperature of cooling tower, difference with heat pump condenser outlet fluid temperature (F.T.) and outdoor wet-bulb temperature is sent into controller as main control parameter, temperature with the heat pump condenser inlet fluid is controlled parameter as assisting, and sends into controller;
In ground heat exchanger outlet and entrance detection and the capacity checking device that adds up the cold and hot amount of fluid is set, obtain the heat that heat that the fluid accumulative total in the ground heat exchanger extracts winter and the accumulative total of the fluid in the ground heat exchanger enter soil summer from soil, as the check signal of the annual load balance of ground heat exchanger;
Controller controls respectively cooling tower according to each temperature data that gathers and opens or cut out.
2. the control system of a kind of underground pipe and cooling tower ground source heat pump composite system as claimed in claim 1, it is characterized in that the detection of the cold and hot amount of described accumulative total and capacity checking device comprise the thermal resistance of measuring ground heat exchanger outlet and inlet fluid temperature and the flow sensor of measuring the ground heat exchanger fluid flow.
3. the control system of a kind of underground pipe and cooling tower ground source heat pump composite system as claimed in claim 1 is characterized in that, described controller adopts the DDC mode to control cooling tower to start and stop, and controller is connected with printing equipment, display unit and outer setting device.
4. the control system of a kind of underground pipe and cooling tower ground source heat pump composite system as claimed in claim 1, it is characterized in that, be provided with the cooling water circulation water pump between described ground heat exchanger and the heat pump, the heat pump condenser porch is provided with the chilled water water circulating pump, and cooling tower is connected with plate type heat exchanger by water pump; The cooling tower top also is provided with blower fan, and cooling water circulation water pump, chilled water water circulating pump, water pump and blower fan all are connected with controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220500795 CN202792751U (en) | 2012-09-27 | 2012-09-27 | Buried pipe and control system of cooling tower ground source heat pump compound system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220500795 CN202792751U (en) | 2012-09-27 | 2012-09-27 | Buried pipe and control system of cooling tower ground source heat pump compound system |
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| Publication Number | Publication Date |
|---|---|
| CN202792751U true CN202792751U (en) | 2013-03-13 |
Family
ID=47820003
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| CN 201220500795 Withdrawn - After Issue CN202792751U (en) | 2012-09-27 | 2012-09-27 | Buried pipe and control system of cooling tower ground source heat pump compound system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102840725A (en) * | 2012-09-27 | 2012-12-26 | 山东中瑞新能源科技有限公司 | Control system and method of buried pipe and cooling tower ground source heat pump compound system |
| CN103968606A (en) * | 2014-04-26 | 2014-08-06 | 山东建筑大学 | Partition running method for relieving underground cold/heat energy accumulative effect of buried pipe geothermal heat exchanger |
| CN108488972A (en) * | 2018-04-03 | 2018-09-04 | 安徽郁金香新能源科技有限公司 | A kind of control method of cooling tower assisted ground source heat pump system that pressing four state optimizations |
| CN117515961A (en) * | 2023-12-11 | 2024-02-06 | 北京辰禹能源科技有限公司 | Heat balance compensation method and unit for earth-edge heat pump in winter and summer |
-
2012
- 2012-09-27 CN CN 201220500795 patent/CN202792751U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102840725A (en) * | 2012-09-27 | 2012-12-26 | 山东中瑞新能源科技有限公司 | Control system and method of buried pipe and cooling tower ground source heat pump compound system |
| CN102840725B (en) * | 2012-09-27 | 2014-07-16 | 山东中瑞新能源科技有限公司 | Control system and method of buried pipe and cooling tower ground source heat pump compound system |
| CN103968606A (en) * | 2014-04-26 | 2014-08-06 | 山东建筑大学 | Partition running method for relieving underground cold/heat energy accumulative effect of buried pipe geothermal heat exchanger |
| CN108488972A (en) * | 2018-04-03 | 2018-09-04 | 安徽郁金香新能源科技有限公司 | A kind of control method of cooling tower assisted ground source heat pump system that pressing four state optimizations |
| CN117515961A (en) * | 2023-12-11 | 2024-02-06 | 北京辰禹能源科技有限公司 | Heat balance compensation method and unit for earth-edge heat pump in winter and summer |
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