CN202613634U - Energy-saving ice storage air conditioning system - Google Patents
Energy-saving ice storage air conditioning system Download PDFInfo
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- CN202613634U CN202613634U CN 201220257702 CN201220257702U CN202613634U CN 202613634 U CN202613634 U CN 202613634U CN 201220257702 CN201220257702 CN 201220257702 CN 201220257702 U CN201220257702 U CN 201220257702U CN 202613634 U CN202613634 U CN 202613634U
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Abstract
The utility model provides an energy-saving ice storage air conditioning system, belongs to the technical field of energy storage air conditioning, and solves the problem of energy waste or motor burnout of the ice storage air conditioning system in the prior art. The energy-saving ice storage air conditioning system comprises a secondary refrigerant loop, an air conditioning water loop and a cooling water loop, wherein the secondary refrigerant loop comprises a secondary refrigerant pump group, a refrigerator unit, an ice storage tank and a heat exchanger which are connected in sequence; the secondary refrigerant pump group consists of a plurality of secondary refrigerant pumps; the refrigerator unit consists of a plurality of refrigerators; the number of the secondary refrigerant pumps is larger than that of the refrigerators; and the total rated power of all the secondary refrigerant pumps is power required by the maximum flow and lift of the secondary refrigerant loop. By the system, the number of the opened secondary refrigerant pumps can be correspondingly adjusted according to different operating conditions, the aim of saving energy is fulfilled, and motor burnout is avoided.
Description
Technical field
The utility model belongs to the energy accumulation air conditioner technical field, relates to a kind of energy-conservation ice-storage air-conditioning system.
Background technology
Ice storage air conditioner is to utilize the cheap electric power of electrical network low-load period through the refrigeration machine refrigeration; The form of cold with latent heat is stored in the ice; In electricity price expensive peak times of power consumption, ice-out is discharged the demand that cold satisfies the air-conditioning refrigeration duty, ice-storage air-conditioning on the one hand can balancing power network load; Can therefore have good social benefit and economic benefit for the user saves the operation of air conditioner expense on the other hand.
In the main current consuming apparatus for the internal ice melting ice storage air conditioner; Except coolant pump; Refrigeration machine, chilled water pump, cooling water pump, cooling tower etc. are all out of service under the part operating mode, and coolant pump is not as long as system stops all must to move, therefore; Coolant pump is one of main current consuming apparatus in the ice-storage air-conditioning system, accounts for 20% of the total power consumption of ice-storage air-conditioning system.
Refrigerating medium is under different operating conditions, and its pipeline of flowing through also changes, corresponding different pepeline characteristics; In traditional ice-storage air-conditioning system, the platform number of coolant pump is consistent with refrigeration board number, the model of selecting coolant pump according to the maximum stream flow and the H-Max of system's needs; Therefore; Under part operating mode operation, the required power of system the situation of low load with strong power occurs less than the rated power of coolant pump; Its one side defective is to cause to waste energy, and defective may cause burn-down of electric motor by the coolant pump inflow-rate of water turbine when pipe resistance is little on the other hand.
Summary of the invention
There are the problems referred to above in the utility model to existing technology, has proposed a kind of energy-conservation ice-storage air-conditioning system, and corresponding coolant pump unlatching quantity can be mated according to different operating conditions in this system, realizes purpose of energy saving.
The utility model is realized through following technical proposal: a kind of ice-storage air-conditioning system comprises refrigerating medium loop, air conditioner water loop and chilled(cooling) water return (CWR); Described refrigerating medium loop comprises coolant pump group, refrigeration unit, Ice Storage Tank and the heat exchanger that is in turn connected into the loop; Described coolant pump group is several coolant pump; Described refrigeration unit is several refrigeration machines; It is characterized in that the quantity of described coolant pump is more than the quantity of refrigeration machine, and the total specified power of all coolant pump satisfies the flow and the required power of lift of the maximum of refrigerating medium loop.
Because the quantity of coolant pump is more than refrigeration machine quantity, coolant pump needs only total flow, lift meets the requirements and just can replace original high-power coolant pump, therefore; In this scheme; Coolant pump can be selected the less pump of some rated power for use, and the combination through these pumps to be being suitable for the power demand of the refrigerating medium loop under the different operating modes, thereby avoids occurring the situation of low load with strong power; Realize purpose of energy saving, also avoided the coolant pump inflow-rate of water turbine to cause the situation of burn-down of electric motor.
In above-mentioned energy-conservation ice-storage air-conditioning system, the quantity of described coolant pump is more than 1 times below 3 times of refrigeration machine quantity.Utilize coolant pump and refrigerating medium pepeline characteristic, under different running mode, it is different that coolant pump is opened the platform number, and through the experiences and practices of a plurality of projects, the quantity of coolant pump is the best results below 3 times more than 1 times of refrigeration machine quantity.
In above-mentioned energy-conservation ice-storage air-conditioning system, the rated power of said every coolant pump is identical.The coolant pump of same traffic, lift can be replaced by all the other coolant pump when a certain coolant pump breaks down, and improves the reliability of system.
First kind of connectivity scenario as coolant pump and refrigeration unit; In above-mentioned energy-conservation ice-storage air-conditioning system; Described coolant pump is connected in parallel, and all coolant pump inlets are connected to coolant pump inlet house steward, and all coolant pump outlets are connected to the coolant pump outlet header; Described refrigeration machine is connected in parallel; All airborne cryogen inlets that freeze are connected to refrigeration machine refrigerating medium inlet house steward, and all airborne cryogen outlets of freezing are connected to refrigeration machine refrigerating medium outlet header, and above-mentioned coolant pump outlet header connects refrigeration machine refrigerating medium inlet house steward.This structure is applicable to coolant pump and refrigeration unit at a distance of bigger situation, makes things convenient for the laying of pipeline through coolant pump outlet header and refrigeration machine refrigerating medium inlet house steward.
In first kind of above-mentioned scheme; In above-mentioned energy-conservation ice-storage air-conditioning system; Described refrigeration unit also comprises the refrigeration machine by-passing valve that is connected in parallel on the refrigeration machine, and these refrigeration machine by-passing valve two ends are connected on refrigeration machine refrigerating medium inlet house steward and the refrigeration machine refrigerating medium outlet header.Control pipeline corresponding under the different operating modes through the refrigeration machine by-passing valve.
Second kind of connectivity scenario as coolant pump and refrigeration unit; In above-mentioned energy-conservation ice-storage air-conditioning system; Said several coolant pump are divided into and the identical group of above-mentioned refrigeration machine quantity; The coolant pump of each group is connected in parallel and connects with corresponding refrigeration machine, and all coolant pump inlets are connected to coolant pump inlet house steward, and all airborne cryogen outlets of freezing are connected to refrigeration machine refrigerating medium outlet header.The coolant pump of this structure in can each group directly connects corresponding refrigeration machine.
In second kind of above-mentioned scheme; In above-mentioned energy-conservation ice-storage air-conditioning system; Described refrigeration unit also comprises refrigeration machine by-passing valve and several refrigeration machine switch valves; The coolant pump outlet sys node of each group is connected with corresponding refrigeration machine refrigerating medium inlet through dividing house steward; Described minute house steward is connected with the branch house steward of next group through above-mentioned corresponding refrigeration machine switch valve successively, and described refrigeration machine control valve one end is connected on the refrigeration machine refrigerating medium outlet header, and the other end is connected to wherein on the branch house steward.Can realize that through the switch of refrigeration machine switch valve same refrigeration machine can improve the reliability of system by the coolant pump of other groups as power.
In above-mentioned energy-conservation ice-storage air-conditioning system; Described refrigerating medium loop also comprises Ice Storage Tank control valve one, Ice Storage Tank control valve two, heat exchanger control valve one and heat exchanger control valve two; Described Ice Storage Tank control valve one and heat exchanger control valve two are connected between Ice Storage Tank and the heat exchanger successively; Described Ice Storage Tank control valve two is connected in parallel on the entrance and exit of Ice Storage Tank; Described heat exchanger control valve is held on the pipeline that is connected heat exchanger and coolant pump one by one, and the other end is connected on the pipeline between Ice Storage Tank control valve two and the heat exchanger control valve two.Can select different operating conditions through these valves.
Compared with prior art; The utility model coolant pump platform number is not corresponding one by one with refrigeration board number; Flow according to pepeline characteristic, water pump characteristic and system's needs of system is opened different coolant pump platform numbers under different working conditions; Avoid the situation of coolant pump low load with strong power, make system's operation more stable, safer, more energy-conservation.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment 1.
Fig. 2 is the structural representation of the utility model embodiment 2.
Among the figure, 1, chilled water pump; 2, air conditioner water constant pressure arrangement; 3, water collector; 4, water knockout drum; 5, heat exchanger; 6, cooling water pump; 7, refrigeration machine; 8, cooling tower; 9, coolant pump; 10, Ice Storage Tank; V1, Ice Storage Tank control valve one; V2, Ice Storage Tank control valve two; V3, heat exchanger control valve one; V4, heat exchanger control valve two; V5, refrigeration machine by-passing valve; V6, refrigeration machine switch valve; 11, divide house steward.
The specific embodiment
Below be the specific embodiment of the utility model, and combine accompanying drawing that the technical scheme of the utility model is done further to describe, but the utility model is not limited to these embodiment.
Embodiment 1:
As shown in Figure 1; Ice-storage air-conditioning system comprises refrigerating medium loop, air conditioner water loop and chilled(cooling) water return (CWR); The air conditioner water loop comprises chilled water pump 1, air conditioner water constant pressure arrangement 2, water collector 3, water knockout drum 4, heat exchanger 5; The chilled(cooling) water return (CWR) comprises cooling water pump 6, refrigeration machine 7 and cooling tower 8, and refrigerating medium loop comprises coolant pump group, refrigeration unit, Ice Storage Tank 10 and the heat exchanger 5 that is in turn connected into the loop.
Specifically; The coolant pump group is several coolant pump 9; Refrigeration unit is several refrigeration machines 7, and the quantity of coolant pump 9 is more than the quantity of refrigeration machine 7, and the rated power summation of all coolant pump 9 equals the maximum power demand of refrigerating medium loop flow process; The quantity of coolant pump 9 is more than 1 times below 3 times of refrigeration machine 7 quantity, and the rated power of every coolant pump 9 is identical.In present embodiment 1, the quantity of coolant pump 9 is 4, and the quantity of refrigeration machine 7 is 2, and the quantity of coolant pump 9 is 2 times of refrigeration machine 7 quantity.
For the ease of laying; Coolant pump 9 is connected in parallel, and all coolant pump inlets are connected to coolant pump inlet house steward, and all coolant pump outlets are connected to the coolant pump outlet header; Refrigeration machine 7 is connected in parallel; All airborne cryogen inlets that freeze are connected to refrigeration machine refrigerating medium inlet house steward, and all airborne cryogen outlets of freezing are connected to refrigeration machine refrigerating medium outlet header, and coolant pump outlet header connects refrigeration machine refrigerating medium inlet house steward.Refrigeration unit also comprises the refrigeration machine by-passing valve V5 that is connected in parallel on the refrigeration machine 7, and this refrigeration machine by-passing valve V5 two ends are connected on refrigeration machine refrigerating medium inlet house steward and the refrigeration machine refrigerating medium outlet header.Refrigerating medium loop also comprises Ice Storage Tank control valve one V1, Ice Storage Tank control valve two V2, heat exchanger control valve one V3, heat exchanger control valve two V4 and refrigeration machine by-passing valve V5; Ice Storage Tank control valve one V1 and heat exchanger control valve two V4 are connected between Ice Storage Tank 10 and the heat exchanger 5 successively; Ice Storage Tank control valve two V2 are connected in parallel in the Ice Storage Tank 10 input outlets; Refrigeration machine by-passing valve V5 is parallelly connected with refrigeration machine 7; Two ends are connected on refrigeration machine 7 refrigerating mediums input house steward and the refrigeration machine 7 refrigerating medium delivery trunks; Heat exchanger control valve one V3 one end is connected on the pipeline of heat exchanger 5 and coolant pump 9, and the other end is connected on the pipeline between Ice Storage Tank control valve one V1 and heat exchanger control valve two V4.The air conditioner water loop is consistent with conventional ice-storage air-conditioning system with the chilled(cooling) water return (CWR).
In conjunction with Fig. 1 and following table 1, under different running mode, it is different that coolant pump 9 is opened the platform number, is specially: during ice making, coolant pump 9 is opened the platform number with refrigeration machine 7 and is equated, coolant pump 9 operates in big flow low lift point on the water pump curve; During the independent cooling of Ice Storage Tank 10 ice-melts, confirm the platform number of coolant pump 9 according to the required flow of system, open platform number half that the platform number is less than or equal to coolant pump 9 usually, coolant pump 9 operates in big flow low lift point on the water pump curve; When the independent cooling of refrigeration machine 7, the unlatching platform number of coolant pump 9 equals the unlatching platform number of refrigeration machine 7, and coolant pump 9 operates in big flow low lift point on the water pump curve; Only when refrigeration machine 7 is united cooling with Ice Storage Tank 10 ice-melts, the multiple of the unlatching platform number of coolant pump 9 more than or equal to the unlatching platform number of refrigeration machine 7 just possibly occur, coolant pump 9 operates in low-flow high-lift point on the water pump curve.
Table 1: a kind of ice-storage air-conditioning system flow process refrigerating medium loop operation control table
Chilled water circuit is controlled according to terminal load variations, and the chilled(cooling) water return (CWR) is controlled according to refrigeration machine 7 unlatching situation and cooling water temperature, and chilled water circuit is consistent with chilled(cooling) water return (CWR) control mode and conventional ice storage air conditioner, repeats no more here.
Embodiment 2:
The content of embodiment 2 is basic identical with embodiment 1, and difference is, and is as shown in Figure 2; Described several coolant pump are divided into and the identical group of above-mentioned refrigeration machine quantity, and in the present embodiment 2, coolant pump is 4; Refrigeration machine is 2; Coolant pump is divided into two groups, two coolant pump of each group, and two coolant pump of each group are connected in parallel and connect with corresponding refrigeration machine; All coolant pump inlets are connected to coolant pump inlet house steward, and all airborne cryogen outlets of freezing are connected to refrigeration machine refrigerating medium outlet header.The coolant pump of this structure in can each group directly connects corresponding refrigeration machine, reduced the control corresponding valve.In order to increase the durability of system; Refrigeration unit also comprises refrigeration machine by-passing valve V5 and a refrigeration machine switch valve V6; The coolant pump outlet sys node of each group is connected with corresponding refrigeration machine refrigerating medium inlet through dividing house steward 11; Divide house steward 11 to be connected with the branch house steward 11 of next group through refrigeration machine switch valve V6, refrigeration machine control valve one end is connected on the refrigeration machine refrigerating medium outlet header, and the other end is connected to wherein on the branch house steward 11.After group's coolant pump fault corresponding to refrigeration machine, open refrigeration machine switch valve V6, can be by the coolant pump of another group as power.
Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from the spirit of the utility model or surmount the defined scope of appended claims.
Although this paper has used terms such as chilled water pump 1, air conditioner water constant pressure arrangement 2, water collector 3, water knockout drum 4, heat exchanger 5, cooling water pump 6, refrigeration machine 7, cooling tower 8, coolant pump 9, Ice Storage Tank 10, Ice Storage Tank control valve one V 1, Ice Storage Tank control valve two V2, heat exchanger control valve one V3, heat exchanger control valve two V4, refrigeration machine bypass V5 morely, do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain the essence of the utility model more easily; Being construed to any additional restriction to them all is to disagree with the utility model spirit.
Claims (9)
1. energy-conservation ice-storage air-conditioning system; Comprise refrigerating medium loop, air conditioner water loop and chilled(cooling) water return (CWR); Described refrigerating medium loop comprises coolant pump group, refrigeration unit, Ice Storage Tank (10) and the heat exchanger (5) that is in turn connected into the loop; Described coolant pump group is several coolant pump (9), and described refrigeration unit is several refrigeration machines (7), it is characterized in that; The quantity of described coolant pump (9) is more than the quantity of refrigeration machine (7), and the total specified power of all coolant pump (9) satisfies the flow and the required power of lift of the maximum of refrigerating medium loop.
2. energy-conservation ice-storage air-conditioning system according to claim 1 is characterized in that, the quantity of described coolant pump (9) is more than 1 times below 3 times of refrigeration machine (7) quantity.
3. energy-conservation ice-storage air-conditioning system according to claim 2 is characterized in that, the rated power of said every coolant pump (9) is identical.
4. according to claim 1 or 2 or 3 described energy-conservation ice-storage air-conditioning systems; It is characterized in that; Described coolant pump (9) is connected in parallel, and all coolant pump inlets are connected to coolant pump inlet house steward, and all coolant pump outlets are connected to the coolant pump outlet header; Described refrigeration machine (7) is connected in parallel; All refrigeration machines (7) refrigerating medium inlet is connected to refrigeration machine (7) refrigerating medium inlet house steward, and all airborne cryogen outlets of freezing are connected to refrigeration machine refrigerating medium outlet header, and above-mentioned coolant pump outlet header connects refrigeration machine refrigerating medium inlet house steward.
5. energy-conservation ice-storage air-conditioning system according to claim 4; It is characterized in that; Described refrigeration unit also comprises the refrigeration machine by-passing valve (V5) that is connected in parallel on the refrigeration machine (7), and this by-passing valve (V5) two ends are connected on refrigeration machine refrigerating medium inlet house steward and the refrigeration machine refrigerating medium outlet header.
6. according to claim 1 or 2 or 3 described energy-conservation ice-storage air-conditioning systems; It is characterized in that; Said several coolant pump (9) are divided into and the identical group of above-mentioned refrigeration machine (7) quantity; The coolant pump of each group (9) is connected in parallel and connects with corresponding refrigeration machine (7), and all coolant pump inlets are connected to coolant pump inlet house steward, and all airborne cryogen outlets of freezing are connected to refrigeration machine refrigerating medium outlet header.
7. energy-conservation ice-storage air-conditioning system according to claim 6; It is characterized in that; Described refrigeration unit also comprises refrigeration machine by-passing valve (V5) and refrigeration machine switch valve (V6); The coolant pump outlet sys node of each group is connected with corresponding refrigeration machine refrigerating medium inlet through dividing house steward (11); Described minute house steward (11) be connected with the branch house steward (11) of next group through above-mentioned corresponding refrigeration machine switch valve (V6) successively, described refrigeration machine by-passing valve (V5) end is connected on the refrigeration machine refrigerating medium outlet header, the other end is connected to wherein on the branch house steward (11).
8. energy-conservation ice-storage air-conditioning system according to claim 5; It is characterized in that; Described refrigerating medium loop also comprises Ice Storage Tank control valve one (V 1), Ice Storage Tank control valve two (V2), heat exchanger control valve one (V3) and heat exchanger control valve two (V4); Described Ice Storage Tank control valve one (V1) and heat exchanger control valve two (V4) are connected between Ice Storage Tank (10) and the heat exchanger (5) successively; Described Ice Storage Tank control valve two (V2) is connected in parallel on the entrance and exit of Ice Storage Tank (10); Described heat exchanger control valve one (V3) end is connected on the pipeline of heat exchanger (5) and coolant pump (9), and the other end is connected on the pipeline between Ice Storage Tank control valve one (V 1) and the heat exchanger control valve two (V4).
9. energy-conservation ice-storage air-conditioning system according to claim 7; It is characterized in that; Described refrigerating medium loop also comprises Ice Storage Tank control valve one (V 1), Ice Storage Tank control valve two (V2), heat exchanger control valve one (V3) and heat exchanger control valve two (V4); Described Ice Storage Tank control valve one (V 1) and heat exchanger control valve two (V4) are connected between Ice Storage Tank (10) and the heat exchanger (5) successively; Described Ice Storage Tank control valve two (V2) is connected in parallel on the entrance and exit of Ice Storage Tank (10); Described heat exchanger control valve one (V3) end is connected on the pipeline of heat exchanger (5) and coolant pump (9), and the other end is connected on the pipeline between Ice Storage Tank control valve one (V1) and the heat exchanger control valve two (V4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220257702 CN202613634U (en) | 2012-05-30 | 2012-05-30 | Energy-saving ice storage air conditioning system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220257702 CN202613634U (en) | 2012-05-30 | 2012-05-30 | Energy-saving ice storage air conditioning system |
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| CN202613634U true CN202613634U (en) | 2012-12-19 |
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| CN 201220257702 Expired - Fee Related CN202613634U (en) | 2012-05-30 | 2012-05-30 | Energy-saving ice storage air conditioning system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103438531A (en) * | 2013-09-18 | 2013-12-11 | 河南科技大学 | Ice storage cold radiation air-conditioning system |
| CN105020779A (en) * | 2014-04-30 | 2015-11-04 | 珠海格力电器股份有限公司 | Air conditioning unit |
| CN107477735A (en) * | 2017-07-21 | 2017-12-15 | 深圳达实智能股份有限公司 | Chilled water storage system |
-
2012
- 2012-05-30 CN CN 201220257702 patent/CN202613634U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103438531A (en) * | 2013-09-18 | 2013-12-11 | 河南科技大学 | Ice storage cold radiation air-conditioning system |
| CN103438531B (en) * | 2013-09-18 | 2017-01-04 | 河南科技大学 | A kind of ice cold-storage air-conditioning system |
| CN105020779A (en) * | 2014-04-30 | 2015-11-04 | 珠海格力电器股份有限公司 | Air conditioning unit |
| CN107477735A (en) * | 2017-07-21 | 2017-12-15 | 深圳达实智能股份有限公司 | Chilled water storage system |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121219 Termination date: 20170530 |