CN204227588U - A kind of supermarket energy resource system - Google Patents
A kind of supermarket energy resource system Download PDFInfo
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- CN204227588U CN204227588U CN201420650155.5U CN201420650155U CN204227588U CN 204227588 U CN204227588 U CN 204227588U CN 201420650155 U CN201420650155 U CN 201420650155U CN 204227588 U CN204227588 U CN 204227588U
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Abstract
The utility model provides a kind of supermarket energy resource system, comprise air-conditioner host equipment, ice-storage equipment, refrigeration host computer, refrigerating equipment and air-condition heat exchanger, described refrigeration host computer forms primary Ioops by pipeline and refrigerating equipment, described ice-storage equipment and refrigeration host computer form primary Ioops, this system also comprises Automatic-cooling control appliance, and described Automatic-cooling control appliance comprises temperature measuring equipment, expansion tank, water replanishing device, ice content calculation element and regulation device.The utility model according to the cold host-initiated of ice content size nonstick system of control or closedown, thus saves the energy greatly, reduces the operating cost in supermarket.
Description
Technical field
The utility model relates to refrigeration and field of air conditioning, particularly relates to a kind of supermarket energy resource system.
Background technology
Along with rapid development of economy, the living standard of the people is also greatly improved, and rhythm of life is accelerated further, the supermarket of convenience store, various scale, shopping center more and more welcomed by the people.AND ENERGY RESOURCES CONSUMPTION IN CHINA constantly increases, and Peak power use amount hits new peak repeatly, and except the further exploitation of the energy, economize energy and raising energy use efficiency are also an important job.According to interrelated data display, in units of every square metre of annual power consumption, calculate (Kwh/m
2.y), the power consumption in supermarket is 2-3 times of normal office building, and the energy expenditure in supermarket too increases the cost in supermarket.In current supermarket, energy consumption equipment mainly comprises the air-conditioning system of sales field, the refrigerating equipment of fresh food, lighting apparatus, prepared food firing equipment etc.Independently of one another, each device fabrication producer also just makes great efforts the Energy Efficiency Ratio improving respective product for the air-conditioning system in current supermarket and the refrigerating equipment of fresh food.On current basis, each autonomous device be made to improve the difficulty of its energy use efficiency very large.In fact, the Cooling and Heat Source in supermarket should be run in the mode of system, makes great efforts to improve capacity utilization, uses the direction that cheap valley power cold-storage becomes supermarket economize energy, cuts operating costs.
The method of operation of conventional sales field, supermarket air-conditioning is: the refrigerant gas of low-temp low-pressure becomes the gas of HTHP through refrigeration compressor, after condenser, the liquid of cryogenic high pressure is condensed into after the external heat release of cold-producing medium, throttling arrangement is flow through after heat, pressure reduces, flow through evaporimeter again, become the gas of low-temp low-pressure at evaporator refrigerant by the heat of Low temperature low pressure liquid absorption air conditioning water.After air conditioning water is absorbed heat, then temperature reduction flows through end equipment, is a home from home that suitable temperature is improved in space, supermarket.If the cold-producing medium of the air-conditioning system in supermarket after condenser can be effectively excessively cold, this will improve refrigerating efficiency greatly.In fact, mistake is cold has become the effective means (as shown in Figure 1) providing air conditioner efficiency.
Refrigeration system and the refrigerating system in conventional supermarket are used for the fresh-keeping of fresh food, and the temperature range of use is different, and these patterns that are freezing and refrigerating system employing showcase.Different according to the structure of cabinet door, showcase can be divided into closed and open type two kinds.The surrounding of closed-type display cabinet is totally-enclosed, and cabinet door is made up of glass, food in cabinet and the external world is separated; The access portion of open-type display case opens wide, and client freely can choose food, food and the external world is separated by air curtain.Open-type display case can not only refrigerate various food, and the feature of the bandwagon effect having it good and the shopping that makes things convenient for customers, thus more and more extensive in the application of big-and-middle-sized supermarket and retail market.Refrigerating equipment is divided into three types by serviceability temperature: 0 DEG C-10 DEG C ,-12 DEG C-0 DEG C, lower than-12 DEG C.Can be divided into built-in and split type according to the arrangement of refrigeration system.Cold-producing medium and cabinet are made of one by built-in showcase, and split type is by refrigeration compressor, and condenser and electrical control cubicles and cabinet are provided separately, and can be put in machine room by refrigeration compressor and electrical control cubicles, condenser is placed in draughty place.The energy ezpenditure of showcase is huge, the running time of every day is 24 hours, add up according to the relevant data for large supermarket, showcase used up energy accounted for 40%-70% of whole supermarket system, concrete ratio is determined according to supermarket merchandising kind.But at night, refrigerating equipment is after closing in supermarket, and the load of system is 60%-85% of rated load, during system idle, the refrigerating efficiency of whole system can reduce.If can effectively utilize idle sub-load to carry out ice-reserving, owing to there being the advantage of low ebb electricity price, this will save supermarket energy expenditure greatly.
Summary of the invention
The utility model, for the shortcoming of above-mentioned supermarket general energy system, provides capacity utilization high, and operation energy expenditure is low, the supermarket energy resource system that refrigeration plant efficiency is high; Peak load of grid simultaneously for refrigeration season is large, electricity price is high, energy system operation shortcoming costly, proposes to adopt refrigerating equipment to carry out cold-storage to provide cold institute's chilling requirement for supermarket refrigeration host computer or be directly the scheme of air-condition heat exchanger supplying cold directly in the peak of power consumption period.
For achieving the above object and other relevant objects, the utility model provides a kind of supermarket energy resource system, comprise air-conditioner host equipment, ice-storage equipment, refrigeration host computer, refrigerating equipment and air-condition heat exchanger, described refrigeration host computer forms primary Ioops by pipeline and refrigerating equipment, described ice-storage equipment and refrigeration host computer form primary Ioops, described air-conditioner host equipment comprises refrigeration compressor, condenser, throttle mechanism, evaporimeter, subcooler, described refrigeration compressor, condenser, throttle mechanism, evaporimeter, subcooler is in turn connected to form primary Ioops, also comprise Automatic-cooling control appliance, described Automatic-cooling control appliance comprises temperature measuring equipment, expansion tank, water replanishing device, ice content calculation element and regulation device, wherein,
Described refrigeration host computer and ice-storage equipment form primary Ioops by pipeline, described temperature measuring equipment is arranged at the output of described refrigeration host computer, described ice-storage equipment is connected by pipeline with air conditioner user end and expansion tank respectively, and the output of described water replanishing device connects expansion tank;
The collecting unit that described ice content calculation element comprises the benchmark setup unit of setting ice content test benchmark, the SEA LEVEL VARIATION data of the expansion tank of collection ice-storing ice-melting operating mode also draw the water level variation of ice-storage equipment according to this and amending unit ice content revised according to the change of supermarket energy resource system service data, be electrically connected between described refrigeration host computer, ice-storage equipment, expansion tank and water replanishing device with described ice content calculation element, described ice content calculation element is electrically connected with between described regulation device.
Preferably, ice content result of calculation is inputted described regulation device by described ice content calculation element, when described ice content result of calculation exceeds threshold value, and described regulation device starting energy-saving pattern, when described ice content result of calculation does not exceed threshold value, close energy saver mode.
Preferably, described ice-storage equipment comprises one group of heat exchanger plates with through hole, cryogen import interface, cryogenic fluid outlet interface, air conditioner water import interface, air conditioner water discharge coupling, interlaced air conditioner water passage and cry-fluid passage is formed between heat exchanger plates, the cry-fluid flow direction of adjacent cry-fluid passage forms staggered flowing mutually on the contrary, has in every group the gear ice support being provided with the ice cube be fixedly formed between heat exchanger plates between the heat exchanger plates of air conditioner water passage.
Preferably, described benchmark setup unit obtains lowest water level H1 and the real time water level H of expansion tank process of cool from collecting unit, and calculates the change △ H of the real time water level of expansion tank according to this; And from temperature measuring equipment, obtain real time temperature T.
Preferably, described amending unit obtains the change △ H of the real time water level of expansion tank and the discharge change of water replanishing device from benchmark setup unit.
Preferably, be connected between the output of described refrigeration host computer and the input of ice-storage equipment by pipeline, described pipeline is for transporting refrigerating medium.
Preferably, flowmeter is provided with between described expansion tank and water replanishing device.
Preferably, described subcooler is any one in board-like, shell-tube type and bushing type.
As mentioned above, supermarket energy resource system of the present utility model, utilizes refrigerating equipment to make full use of valley power at ice-reserving at night, for air-conditioning system provides peak period all with cold or make unit excessively cold, or directly for air conditioner user end equipment provides cold.It has following beneficial effect:
1. reduce the host number of configuration, improve the operational efficiency of refrigeration host computer.Utilize refrigerating equipment ice-reserving, for air conditioner user end equipment directly provides cold when peak of power consumption, this can reduce number of units and the power of main frame to a certain extent.Utilize refrigerating equipment ice-reserving, provide cold for refrigeration host computer is excessively cold, the raising of engine efficiency when this is conducive to freezing.
2. improve the operational efficiency at night of refrigerating equipment.The refrigerating equipment in tradition supermarket adopts operation at part load at night, and the operational efficiency of such whole system is not very desirable, and equipment is not also fully used.Utilize ice-storage equipment, make it utilize valley power oepration at full load, improve operational efficiency at night, the utilization rate of equipment is also improved.
3. the utility model is by the ice content in Automatic-cooling control appliance real-time testing ice-storage equipment, and automatically controls supermarket energy resource system according to ice content size and enter energy saver mode, thus greatly saves the energy, reduces the operating cost in supermarket.
Accompanying drawing explanation
Fig. 1 is shown as the schematic diagram of the supermarket energy resource system of prior art.
Fig. 2 is shown as the schematic diagram of supermarket energy resource system of the present utility model.
Fig. 3 is shown as the structural representation of ice-storage equipment of the present utility model.
Fig. 4 is shown as the structural representation of air-conditioner host equipment of the present utility model.
Detailed description of the invention
Below by way of specific instantiation, embodiment of the present utility model is described, those skilled in the art the content disclosed by this description can understand other advantages of the present utility model and effect easily.The utility model can also be implemented or be applied by detailed description of the invention different in addition, and the every details in this description also can based on different viewpoints and application, carries out various modification or change not deviating under spirit of the present utility model.
Refer to the schematic diagram of Fig. 1 supermarket energy resource system of the present utility model.It should be noted that, the diagram provided in the present embodiment only illustrates basic conception of the present utility model in a schematic way, then only the assembly relevant with the utility model is shown in graphic but not component count, shape and size when implementing according to reality is drawn, it is actual when implementing, and the kenel of each assembly, quantity and ratio can be a kind of change arbitrarily, and its assembly layout kenel also may be more complicated.
Below in conjunction with the drawings and specific embodiments, the utility model will be further described, and this supermarket energy resource system comprises:
Described supermarket energy resource system comprises air-conditioner host equipment 16, ice-storage equipment 7, refrigeration host computer 10, refrigerating equipment 14 and air-condition heat exchanger 11, described refrigeration host computer 10 forms primary Ioops by pipeline and refrigerating equipment 14, described ice-storage equipment 7 forms primary Ioops with refrigeration host computer 10, described air-conditioner host equipment 16 comprises refrigeration compressor 1, condenser 2, throttle mechanism 3, evaporimeter 4, subcooler 5, described refrigeration compressor 1, condenser 2, throttle mechanism 3, evaporimeter 4, subcooler 5 is in turn connected to form primary Ioops, this system also comprises Automatic-cooling control appliance 20, described Automatic-cooling control appliance 20 comprises temperature measuring equipment 201, expansion tank 12, water replanishing device 202, ice content calculation element 203 and regulation device 204, in addition, this system also installs required valve in pipeline, pump, level pressure parts etc., as transfer valve 6, transfer valve 8, pump 9, wherein,
Described refrigeration host computer 10 and ice-storage equipment 7 form primary Ioops by pipeline, described temperature measuring equipment 201 is arranged at the output of described refrigeration host computer 10, described ice-storage equipment 7 is connected by pipeline with expansion tank 12 respectively, and the output of described water replanishing device 202 connects expansion tank 12;
Described refrigeration host computer 10, ice-storage equipment 7, air-condition heat exchanger 11, expansion tank 12 is connected successively with water replanishing device 202 and forms primary Ioops by pipeline, described ice content calculation element 203 comprises the benchmark setup unit 2031 of setting ice content test benchmark, the collecting unit 2032 that the SEA LEVEL VARIATION data gathering the expansion tank of ice-storing ice-melting operating mode also draw the water level variation of ice-storage equipment according to this and the amending unit 2033 ice content revised according to the change of supermarket energy resource system service data, described refrigeration host computer 10, ice-storage equipment 7, expansion tank 12 and being electrically connected between water replanishing device 202 with described ice content calculation element 203, be electrically connected between described ice content calculation element 203 with described regulation device 204.
The outlet of refrigeration compressor 1 is connected by pipeline with the entrance of subcooler 5, the entrance of throttle mechanism 3 is connected with the outlet of subcooler 5, export be connected with the entrance of evaporimeter 4, the outlet of evaporimeter 4 is connected with the entrance of refrigeration compressor 1; Ice-storage equipment 7 is connected to a loop by ice-reserving pipeline and pump 9 with refrigerating equipment 10; The ice-melt pipeline of ice-storage equipment 7 is divided into two-way, a road connection transfer valve 6 is connected with subcooler, transfer valve 8 of separately leading up to is connected with air-condition heat exchanger 11, and this two-way forms shunt circuit; Air-condition heat exchanger 11 and the pipeline of evaporimeter 4 are connected to water pump of air conditioner 13 and expansion tank 12.
When refrigeration host computer is opened, the refrigerant gas of low-temp low-pressure becomes the gas of HTHP through the pressurization of refrigeration compressor 1, after condenser 2 and subcooler 5, the liquid of cryogenic high pressure is condensed into after the external heat release of cold-producing medium, throttling arrangement 3 is flow through after heat, pressure reduces, then flows through evaporimeter 4, and the gas that the heat that cold-producing medium absorbs air conditioning water by Low temperature low pressure liquid in evaporimeter 4 becomes low-temp low-pressure is got back in refrigeration compressor 1 and completed kind of refrigeration cycle.Refrigerating equipment 10 is cooled to and flows back to refrigerating equipment 10 after reducing complete a circulation lower than entering absorb heat ice making, temperature of ice-storage equipment 7 after 0 degree Celsius under the driving of pump 9.After the ice-out of ice-storage equipment 7 through pipeline switching valve 6 can flow through subcooler 5 or through pipeline switching valve 8 for air-condition heat exchanger 11 provides cold.During refrigeration, the air conditioner water that air-condition heat exchanger 11 flows out flows into air-condition heat exchanger 11 enter the reduction of refrigerating evaporator 4 temperature under the conveying of water pump 13 after and completes a circulation.
Preferably, described ice-storage equipment comprises one group of heat exchanger plates with through hole, cryogen import interface, cryogenic fluid outlet interface, air conditioner water import interface, air conditioner water discharge coupling, interlaced air conditioner water passage and cry-fluid passage is formed between heat exchanger plates, the cry-fluid flow direction of adjacent cry-fluid passage forms staggered flowing mutually on the contrary, has in every group the gear ice support being provided with the ice cube be fixedly formed between heat exchanger plates between the heat exchanger plates of air conditioner water passage.
It should be noted that, described ice-storage equipment 2 can be closed-type external ice thawing ice-accumulating chamber of the prior art or open type ice thawing ice-accumulating chamber, preferably described ice-storage equipment 2 comprises one group of heat exchanger plates with through hole, cryogen import interface, cryogenic fluid outlet interface, air conditioner water import interface, air conditioner water discharge coupling, interlaced air conditioner water passage and cry-fluid passage is formed between heat exchanger plates, the cry-fluid flow direction of adjacent cry-fluid passage forms staggered flowing mutually on the contrary, in every group, there is the gear ice support being provided with the ice cube be fixedly formed between heat exchanger plates between the heat exchanger plates of air conditioner water passage.
Heat exchanger plates a, b in Fig. 3, the flow direction of the cryogen between e, f between heat exchanger plates flows from top to bottom, heat exchanger plates c, d, and the flow direction of the cryogen between g, h between heat exchanger plates flows from the bottom up.The direction of heat exchanger plates 10 is perpendicular to the ground or parallel.
Preferably, described gear ice support has the 3rd support plate on the first support plate of the narrow end surface of the coated wedge shape ice sheet be formed on heat exchange wooden partition, the second support plate of the wide end surface of the coated wedge shape ice sheet be formed on heat exchange wooden partition and the inclined-plane of the coated wedge shape ice sheet be formed on heat exchange wooden partition, wherein, at least one in the first support plate, the second support plate and the 3rd support plate has through hole.
As shown in Figure 3, in the present embodiment, the air conditioner water passage that has of vertical external ice thawing ice-accumulating chamber is formed between two wedge shape ice cubes, upper coated first support plate of narrow end surface (II) of wedge shape ice cube, upper coated second support plate of wide end surface (I) of wedge shape ice cube, upper coated 3rd support plate in inclined-plane (III) of wedge shape ice cube.Described gear ice support is made up of metal material or plastics.3rd support plate is provided with multiple uniform through hole.
Preferably, be connected between the output of described refrigeration host computer and the input of ice-storage equipment by pipeline, described pipeline is for transporting refrigerating medium.
Preferably, flowmeter 205 is provided with between described expansion tank and water replanishing device.
Preferably, described subcooler is any one in board-like, shell-tube type and bushing type.
Preferably, ice content result of calculation is inputted described regulation device by described ice content calculation element, when described ice content result of calculation exceeds threshold value, and described regulation device starting energy-saving pattern, when described ice content result of calculation does not exceed threshold value, close energy saver mode.
Preferably, described benchmark setup unit obtains lowest water level H1 and the real time water level H of expansion tank process of cool from collecting unit, and calculates the change △ H of the real time water level of expansion tank according to this; And from temperature measuring equipment, obtain real time temperature T.
Preferably, described amending unit obtains the change △ H of the real time water level of expansion tank and the discharge change of water replanishing device from benchmark setup unit.
The collecting unit 2032 of described ice content calculation element 203 gathers the delta data of the flowmeter 205 of expansion tank 12 in ice-reserving and deicing processes, and the SEA LEVEL VARIATION data of expansion tank 12 are calculated according to this delta data, as the delta data △ H of the water level H of expansion tank 12, obtain the △ H variation tendency line of ice-reserving and deicing processes.
The benchmark setup unit 2031 of described ice content calculation element 203 obtains the minimum of process of cool middle water level from collecting unit 2032, described process of cool refers in the ice-reserving incipient stage, because water expands with heat and contract with cold, water level H when water is cooled to minimum temperature by normal temperature in expansion tank
1.Meanwhile, described benchmark setup unit 2031 also obtains the real time water level H of expansion tank 12 process of cool from collecting unit 2032, and calculates the SEA LEVEL VARIATION data △ H=H-H of expansion tank 12 accordingly
1.Described benchmark setup unit 2031 also obtains real time temperature T from from temperature measuring equipment 3 (as thermometer), when the temperature value T obtained from temperature measuring equipment 3 reaches setting value Ts, the Hs inscribed when recording this, and the SEA LEVEL VARIATION data △ Hs=Hs-H calculating the expansion tank 12 of temperature under Ts accordingly
1, the computing formula of ice-storage rate is:
therefore ice content now
this ice-storage rate is the test benchmark of ice content.It should be noted that, setting value Ts empirically can be set by those skilled in the art, as-10 DEG C≤Ts≤-5 DEG C.
In the present embodiment, be provided with flowmeter 205 between expansion tank and water replanishing device, the amending unit 2033 of described ice content calculation element 203 obtains the change △ H of the real time water level of expansion tank 12 and the discharge change measured by water replanishing device 202 flowmeter 205 from benchmark setup unit 2031.By the change △ H obtaining the real time water level of expansion tank 12 from benchmark setup unit 2031, single compensation is carried out to ice content, by the discharge change obtained from benchmark setup unit 2031 measured by water replanishing device 202 flowmeter 205, second compensation is carried out to ice content.
Particularly, if the change △ H of the real time water level of expansion tank 12 is normal, the discharge that then amending unit 2033 obtains measured by water replanishing device 202 flowmeter 205 from benchmark setup unit 2031 changes, and judge whether water replanishing device 202 carries out moisturizing to expansion tank accordingly, if non-moisturizing, then ice content is measured value, namely
if be judged as moisturizing, then second compensation is carried out to ice content, H
1=H
1 measured value+ △ H
1, wherein, H
1 measured valuefor the minimum of the process of cool middle water level that benchmark setup unit 2031 obtains from collecting unit 2032, △ H
1for the water level correction value after the moisturizing of consideration water replanishing device, thus,
realize the compensation to ice content.
If the change △ H of the real time water level of expansion tank 12 is abnormal, then single compensation is carried out to ice content.At this, can introduce set temperature value T1 and compensate, preferably ,-3 DEG C≤T1≤1 DEG C, ice content can be expressed as the function of the temperature value T of refrigerating medium:
S＝f(T-T
1,Ts-T
1)
Wherein, the temperature value T of the refrigerating medium of T measured by temperature measuring equipment 3, T1 and Ts is setting value.
T and S can be linear relationship or non-linear relation, and preferably, the pass of T and S is:
It should be noted that, still obtain the discharge change measured by water replanishing device flowmeter 205 from benchmark setup unit 2031 at this stage amending unit, and judge whether water replanishing device carries out moisturizing to expansion tank accordingly, if non-moisturizing, then ice content is measured value, namely
if be judged as moisturizing, then second compensation is carried out to ice content, H
1=H
1 measured value+ △ H
1, wherein, H
1 measured valuefor the minimum of the process of cool middle water level that benchmark setup unit obtains from collecting unit 2032, △ H
1for the water level correction value after the moisturizing of consideration water replanishing device, this water level correction value can be determined by following formula:
If there is moisturizing phenomenon; Judge whether it is because moisturizing causes liquid level △ H to change by computing.If because moisturizing causes liquid level to change, determine rate of water make-up
Thus,
realize the compensation to ice content.
It should be noted that, single compensation and second compensation can synchronously carry out, and also can asynchronously carry out, and higher value wherein or smaller value can be selected as ice content, preferably:
S＝f(S
0,S
1,S
2)
Wherein, S
0for the initial ice content that ice content calculation element calculates according to measured value, S
1for the ice content after single compensation, S
2for the ice content after second compensation, S is the final ice content obtained after compensating, and the concrete formula of this function empirically can be determined by those skilled in the art, and other modes also can be adopted to determine, the utility model is not limited at this.
It should be noted that, described ice content calculation element is also connected with refrigeration host computer, and the signal transmission of opening and closing to ice content calculation element, when ice content calculation element detects that refrigeration host computer is in opening state, is then carried out above-mentioned steps by refrigeration host computer; When detecting that refrigeration host computer is in closed condition, namely when non-ice-reserving or cold-storage, under being defined in any water level value H, ice content S is 0.
Preferably, ice content result of calculation is inputted described regulation device by described ice content calculation element, when described ice content result of calculation exceeds threshold value, and described regulation device starting energy-saving pattern, when described ice content result of calculation does not exceed threshold value, close energy saver mode.
When ice content exceedes threshold value, described regulation device 204 is starting energy-saving pattern automatically, when described ice content result of calculation does not exceed threshold value, closes energy saver mode, keeps normal mode.This threshold value rule of thumb can be determined by technical specialist, or is determined by additive method.The setting thinking of this threshold value can be: determine the best ice-melt time by setting threshold value, particularly, when described ice content result of calculation exceedes this threshold value, the cold of the ice cube release then in ice-storage equipment 7 is enough to for air-condition heat exchanger 11 a period of time, this time can be supermarket non operation time or other durations, then refrigeration host computer 10 can be closed, to save electric power resource, now water pump of air conditioner 13 is closed, and pipeline switching valve 6,8 is closed.Pump 9 is opened.Cryogenic liquid (cold-producing medium or refrigerating medium) cools by refrigerating equipment 10 sub-load, and then enter ice-storage equipment 7 ice-reserving under the driving of pump 9 after, temperature raises, and then flows back to refrigerating equipment and completes a circulation.When described ice content result of calculation is lower than this threshold value, the time that the cold that ice cube then in ice-storage equipment 7 discharges only can supply air-condition heat exchanger 11 shorter, as 2 hours or other durations, then need to continue ice-reserving, to obtain abundant cold, now pipeline switching valve 6,8 has selection to open, and water pump of air conditioner 13 is opened, and pump 9 cuts out.The refrigerant gas of low-temp low-pressure becomes the gas of HTHP through the pressurization of refrigeration compressor 1, after condenser 2 and subcooler 5, the liquid of cryogenic high pressure is condensed into after the external heat release of cold-producing medium, throttling arrangement 3 is flow through after heat, pressure reduces, flow through evaporimeter 4 again, in evaporimeter 4, cold-producing medium absorbs by Low temperature low pressure liquid gas that the heat of air conditioning water becomes low-temp low-pressure and gets back in refrigeration compressor 1 and complete kind of refrigeration cycle.After the ice-out of ice-storage equipment 7 through pipeline switching valve 6 can flow through subcooler 5 or through pipeline switching valve 8 for air-condition heat exchanger 11 provides cold.Flow into air-condition heat exchanger 11 after adjusting the air conditioner water of end equipment 11 outflow to enter the reduction of refrigerating evaporator 4 temperature under the conveying of water pump 13 and complete a circulation.
In sum, supermarket energy resource system of the present utility model, utilizes refrigerating equipment to make full use of valley power at ice-reserving at night, for air-conditioning system provides peak period all with cold or make unit excessively cold, or directly for air-condition heat exchanger provides cold.It has following beneficial effect:
1. reduce the host number of configuration, improve the operational efficiency of refrigeration host computer.Utilize refrigerating equipment ice-reserving, for air-condition heat exchanger directly provides cold when peak of power consumption, this can reduce number of units and the power of main frame to a certain extent.Utilize refrigerating equipment ice-reserving, provide cold for refrigeration host computer is excessively cold, the raising of engine efficiency when this is conducive to freezing.
2. improve the operational efficiency at night of refrigerating equipment.The refrigerating equipment in tradition supermarket adopts operation at part load at night, and the operational efficiency of such whole system is not very desirable, and equipment is not also fully used.Utilize ice-storage equipment, make it utilize valley power oepration at full load, improve operational efficiency at night, the utilization rate of equipment is also improved.
3. the utility model is by the ice content in Automatic-cooling control appliance real-time testing ice-storage equipment, and automatically controls supermarket energy resource system according to ice content size and enter energy saver mode, thus greatly saves the energy, reduces the operating cost in supermarket.
So the utility model effectively overcomes various shortcoming of the prior art and tool high industrial utilization.
Above-described embodiment is illustrative principle of the present utility model and effect thereof only, but not for limiting the utility model.Any person skilled in the art scholar all without prejudice under spirit of the present utility model and category, can modify above-described embodiment or changes.Therefore, such as have in art and usually know that the knowledgeable modifies or changes not departing from all equivalences completed under the spirit and technological thought that the utility model discloses, must be contained by claim of the present utility model.
Claims (8)
1. a supermarket energy resource system, comprise air-conditioner host equipment, ice-storage equipment, refrigeration host computer, refrigerating equipment and air-condition heat exchanger, described refrigeration host computer forms primary Ioops by pipeline and refrigerating equipment, described ice-storage equipment and refrigeration host computer form primary Ioops, described air-conditioner host equipment comprises refrigeration compressor, condenser, throttle mechanism, evaporimeter, subcooler, described refrigeration compressor, condenser, throttle mechanism, evaporimeter, subcooler is in turn connected to form primary Ioops, it is characterized in that: also comprise Automatic-cooling control appliance, described Automatic-cooling control appliance comprises temperature measuring equipment, expansion tank, water replanishing device, ice content calculation element and regulation device, wherein,
Described refrigeration host computer and ice-storage equipment form primary Ioops by pipeline, described temperature measuring equipment is arranged at the output of described refrigeration host computer, described ice-storage equipment is connected by pipeline with air conditioner user end and expansion tank respectively, and the output of described water replanishing device connects expansion tank;
The collecting unit that described ice content calculation element comprises the benchmark setup unit of setting ice content test benchmark, the SEA LEVEL VARIATION data of the expansion tank of collection ice-storing ice-melting operating mode also draw the water level variation of ice-storage equipment according to this and amending unit ice content revised according to the change of supermarket energy resource system service data, be electrically connected between described refrigeration host computer, ice-storage equipment, expansion tank and water replanishing device with described ice content calculation element, described ice content calculation element is electrically connected with between described regulation device.
2. supermarket energy resource system according to claim 1, it is characterized in that: ice content result of calculation is inputted described regulation device by described ice content calculation element, when described ice content result of calculation exceeds threshold value, described regulation device starting energy-saving pattern, when described ice content result of calculation does not exceed threshold value, close energy saver mode.
3. supermarket energy resource system according to claim 1, it is characterized in that: described ice-storage equipment comprises one group of heat exchanger plates with through hole, cryogen import interface, cryogenic fluid outlet interface, air conditioner water import interface, air conditioner water discharge coupling, interlaced air conditioner water passage and cry-fluid passage is formed between heat exchanger plates, the cry-fluid flow direction of adjacent cry-fluid passage forms staggered flowing mutually on the contrary, has in every group the gear ice support being provided with the ice cube be fixedly formed between heat exchanger plates between the heat exchanger plates of air conditioner water passage.
4. supermarket energy resource system according to claim 1, is characterized in that: described benchmark setup unit obtains the lowest water level H of expansion tank process of cool from collecting unit
1with real time water level H, and calculate the change △ H of the real time water level of expansion tank according to this; And from temperature measuring equipment, obtain real time temperature T.
5. supermarket energy resource system according to claim 1, is characterized in that: described amending unit obtains the change △ H of the real time water level of expansion tank and the discharge change of water replanishing device from benchmark setup unit.
6. supermarket energy resource system according to claim 1, is characterized in that: be connected by pipeline between the output of described refrigeration host computer and the input of ice-storage equipment, and described pipeline is for transporting refrigerating medium.
7. supermarket energy resource system according to claim 1, is characterized in that: be provided with flowmeter between described expansion tank and water replanishing device.
8. supermarket energy resource system according to claim 1, is characterized in that: described subcooler is any one in board-like, shell-tube type and bushing type.
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| CN201420650155.5U CN204227588U (en) | 2014-11-03 | 2014-11-03 | A kind of supermarket energy resource system |
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| CN201420650155.5U Active CN204227588U (en) | 2014-11-03 | 2014-11-03 | A kind of supermarket energy resource system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106325331A (en) * | 2015-06-30 | 2017-01-11 | 上海汽车集团股份有限公司 | Temperature control system, apparatus and method of environmental wind tunnel |
| CN106969453A (en) * | 2017-05-19 | 2017-07-21 | 深圳佩尔优科技有限公司 | A kind of air-conditioning system and its control method |
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2014
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106325331A (en) * | 2015-06-30 | 2017-01-11 | 上海汽车集团股份有限公司 | Temperature control system, apparatus and method of environmental wind tunnel |
| CN106325331B (en) * | 2015-06-30 | 2018-05-11 | 上海汽车集团股份有限公司 | The temperature control system of environmental wind tunnel, apparatus and method |
| CN106969453A (en) * | 2017-05-19 | 2017-07-21 | 深圳佩尔优科技有限公司 | A kind of air-conditioning system and its control method |
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