CN208859762U - Ice storage ethylene glycol second level pump installation - Google Patents
Ice storage ethylene glycol second level pump installation Download PDFInfo
- Publication number
- CN208859762U CN208859762U CN201821640948.3U CN201821640948U CN208859762U CN 208859762 U CN208859762 U CN 208859762U CN 201821640948 U CN201821640948 U CN 201821640948U CN 208859762 U CN208859762 U CN 208859762U
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- China
- Prior art keywords
- ice storage
- refrigeration
- ethylene glycol
- water outlet
- switching valve
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Abstract
The utility model discloses a kind of ice storage ethylene glycol second level pump installation, including refrigeration host computer, ice storage unit, heat exchanger, refrigeration general pipeline, the eg pump on refrigeration general pipeline is arranged in two series windings.The utility model has the advantages that: refrigeration system can under most of operating condition single pump operation, two-stage pump operation under air conditioning operating condition, eg pump operational efficiency it is high；The application of eg pump flow lift is accurate, operates on high-efficiency point always, energy-saving effect is significant.
Description
Technical field
The utility model belongs to ice storage refrigeration technology field, and in particular to a kind of ice storage ethylene glycol second level pump installation.
Background technique
Existing ice storage Internal melt system all uses single pump, the eg pump lift used in the system compared with
Greatly, in different operating condition switchover operations, according to circulation need the frequency span of eg pump frequency conversion very big, frequency may 20 to
Between 50Hz.The above-mentioned method of operation is unfavorable to water pump itself, will lead to equipment damage particularly with operation at low frequency.It is existing
Although two-stage pump-type ice-storage system using two sets pump and meanwhile run, energy consumption is higher not energy-efficient, the overpressure of refrigerating fluid
Control effect is poor.
Summary of the invention
The purpose of this utility model is to provide a kind of ice storage ethylene glycol second level according in place of above-mentioned the deficiencies in the prior art
Pump installation, Primary pump system and the corresponding pipeline plan of establishment of the device by setting frequency conversion, enables to refrigeration system
Eg pump is flexibly run, and flow lift application is accurate, and eg pump operates on high-efficiency point always.
The utility model aim realization is completed by following technical scheme:
A kind of ice storage ethylene glycol second level pump installation, including refrigeration host computer, ice storage unit, heat exchanger, refrigeration general pipeline, it is described
The water inlet of the low temperature side of heat exchanger connects the water outlet of the refrigeration general pipeline, the water outlet connection of the low temperature side of the heat exchanger
The water inlet of the refrigeration general pipeline, the high temperature side of the heat exchanger connect refrigeration load, the water outlet connection of the refrigeration host computer
The water inlet of the ice storage unit includes multiple pipe nodes on the refrigeration general pipeline；The water outlet connection the of the refrigeration general pipeline
One pipe node, the water inlet of the refrigeration general pipeline connect the second pipe node, and the water outlet of the ice storage unit connects third tube coupling
Point, primary pump are arranged between first pipe node and the water inlet of the refrigeration host computer, and the two stage pump is arranged described
Between second pipe node and the third pipe node；The first company is provided between second pipe node and the third pipe node
It threads a pipe, is provided with the first switching valve on first connecting pipe；Between first pipe node and the third pipe node
It is provided with the second connecting pipe, is provided with the second switching valve on second connecting pipe.
The heat exchanger is plate heat exchanger.
Third connecting pipeline is provided between the water inlet and water outlet of the refrigeration host computer, on the third connecting pipeline
It is provided with third switching valve.
The 4th connecting pipe is provided between the water inlet and water outlet of the ice storage unit, on the 4th connecting pipe
It is provided with the 4th switching valve.
The ice storage unit includes multiple Ice Storage Tanks, and what the water inlet of the Ice Storage Tank was all connected with the ice storage unit enters water
Mouthful, the water outlet of the Ice Storage Tank is all connected with the water outlet of the ice storage unit.
The water inlet and water outlet of each Ice Storage Tank are respectively provided with a control valve.
The water inlet of the ice storage unit is provided with the 5th switching valve.
The water outlet of the refrigeration general pipeline is provided with the 6th switching valve.
The water outlet of the refrigeration host computer is provided with the 7th switching valve.
The primary pump and the two stage pump are frequency conversion eg pump.
The utility model has the advantages that: refrigeration system can under most of operating condition single pump operation, under air conditioning operating condition
Two-stage pump operation, eg pump operational efficiency are high；The application of eg pump flow lift is accurate, operates on high-efficiency point always, saves
It can significant effect.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of ice storage ethylene glycol second level pump installation in the utility model embodiment.
Specific embodiment
Feature of the invention and other correlated characteristics are described in further detail by embodiment below in conjunction with attached drawing, with
Convenient for the understanding of technical staff of the same trade:
As shown in Figure 1, respectively label is respectively as follows: heat exchanger 1, refrigeration host computer 2, ice storage unit 3, primary pump 41, second level in figure
The 42, first switching valve 51 of pump, the second switching valve 52, third switching valve 53, the 4th switching valve 54, the 5th switching valve the 55, the 6th are cut
Change valve 56, the 7th switching valve 57, control valve 6, the first pipe node 71, the second pipe node 72, third pipe node 73.
Embodiment: as shown in Figure 1, the present embodiment is specifically related to a kind of ice storage ethylene glycol second level pump installation, pass through setting
The Primary pump system of frequency conversion and corresponding pipeline, so that the eg pump of refrigeration system is flexibly run, flow lift application is accurate,
Eg pump operates on high-efficiency point always.
As shown in Figure 1, the ice storage ethylene glycol second level pump installation in the present embodiment, including refrigeration host computer 2, ice storage unit 3,
Heat exchanger 1, refrigeration general pipeline, the water outlet of the water inlet connection refrigeration general pipeline of the low temperature side of heat exchanger 1, the low temperature side of heat exchanger 1
Water outlet connection refrigeration general pipeline water inlet, the high temperature side of the heat exchanger 1 connects refrigeration load, the water outlet of refrigeration host computer 2
The water inlet of mouth connection ice storage unit 3.Heat exchanger 1 is plate heat exchanger 1.It include multiple pipe nodes on refrigeration general pipeline.Wherein, it makes
The water outlet of cold general pipeline connects the first pipe node 71, and the water inlet for the general pipeline that freezes connects the second pipe node 72, and ice storage unit 3 goes out
The mouth of a river connects third pipe node 73；The first connecting pipe is provided between second pipe node 72 and third pipe node 73, first connects
It is provided with the first switching valve 51 on threading a pipe, is provided with the second connecting pipe between the first pipe node 71 and third pipe node 73,
The second switching valve 52 is provided on second connecting pipe.The water outlet of refrigeration general pipeline is provided with the 6th switching valve 56.
As shown in Figure 1, in the present embodiment primary pump 41 be arranged in the first pipe node 71 and refrigeration host computer 2 water inlet it
Between, two stage pump 42 is arranged between the second pipe node 72 and third pipe node 73；Primary pump 41 and two stage pump 42 are frequency conversion second
Glycol pump.The form that the conjunction of several pump groups can be used in primary pump 41 and two stage pump 42 is constituted, but its total flow and number of units are kept
Unanimously, primary pump 41 and two stage pump 42 are accordingly to be regarded as single pump in the present embodiment.
As shown in Figure 1, it is provided with third connecting pipeline between the water inlet and water outlet of refrigeration host computer 2 in the present embodiment,
Third switching valve 53 is provided on third connecting pipeline.The water outlet of refrigeration host computer 2 is provided with the 7th switching valve 57.
As shown in Figure 1, it is provided with the 4th connecting pipe between the water inlet and water outlet of ice storage unit 3 in the present embodiment,
The 4th switching valve 54 is provided on 4th connecting pipe.Ice storage unit 3 includes multiple Ice Storage Tanks, and the water inlet of Ice Storage Tank is all connected with
The water inlet of ice storage unit 3, the water outlet of Ice Storage Tank are all connected with the water outlet of ice storage unit 3.The water inlet of each Ice Storage Tank and
Water outlet is respectively provided with a control valve 6.The water inlet of ice storage unit 3 is provided with the 5th switching valve 55.
As shown in Figure 1, the first above-mentioned switching valve 51 and the 6th switching valve 56 control refrigerating plant and change in the present embodiment
Connection status between hot device 1, to control the on-off and recurrent state of freezing ethylene glycol.Second switching valve 52 is connected to second
Pipeline opens ethylene glycol when the second switching valve 52 and directly passed through for the second communicating pipe for whether being bypassed for two stage pump 42 to be controlled
Without entering two stage pump 42, the ethylene glycol flowing in system relies only on the driving of primary pump 41 for road flowing.Third switching valve 53 and
Four switching valves 54 control refrigeration host computer 2 respectively and whether ice storage unit 3 bypasses, to control refrigeration host computer 2 and ice storage unit 3 is
No access glycol circulation.Individually control 3 on off operating mode of ice storage unit, the 7th switching valve 57 individually control system to 5th switching valve 55
The on off operating mode of cold host 2, control valve 6 individually control the on off operating mode of each Ice Storage Tank.
As shown in Figure 1, being opened in the present embodiment in the first switching valve 51, the closing of the 6th switching valve 56, third switching valve 53
It is turned off with the 4th switching valve 54, is now in the single ice making operating condition of refrigeration host computer 2.First switching valve 51 is closed, the 6th switching valve
56 open, and the second switching valve 52 is opened, and third switching valve 53 is closed, and the 4th switching valve 54 is opened, and it is single to be now in refrigeration host computer 2
Cooling condition.First switching valve 51 is closed, and the 6th switching valve 56 is opened, and the second switching valve 52 is opened, and third switching valve 53 is opened,
4th switching valve 54 is closed, and the single ice melting of ice storage unit 3 is now in.First switching valve 51 is closed, and the 6th switching valve 56 is opened
It opens, the second switching valve 52 is closed, and third switching valve 53 is closed, and the 4th switching valve 54 is closed, and is now in air conditioning operating condition.
As shown in Figure 1, the working principle of the ice storage ethylene glycol second level pump installation in the present embodiment are as follows: be based on above-mentioned pipeline
Setting primary pump 41 and two stage pump 42 be in series connection, the running resistance basic sources of two pumps are in host evaporator, ice
Hold-over plate changes, ice storage unit 3.The power of pump is chosen according to ice storage maximum semen donors and the ethylene glycol temperature difference.
As shown in Figure 1, the lift of the primary pump 41 in the present embodiment under different operating conditions is chosen in the following manner: refrigeration master
The single ice making operating condition of machine 2, needs to overcome 2 evaporator of refrigeration host computer, ice storage unit 3 and the resistance of ducting, lift takes 28 meters.Refrigeration host computer
2 single cooling conditions, need to overcome that 2 evaporator of refrigeration host computer, ice storage plate changes and the resistance of ducting, and lift takes 28 meters.Ice storage unit 3
Single ice melting, needs to overcome that ice storage unit 3, ice storage plate changes and the resistance of ducting, and lift takes 28 meters.Air conditioning operating condition,
It is exactly that ice storage unit 3 and refrigeration host computer 2 work at the same time refrigeration, needs to overcome 2 evaporator of refrigeration host computer, ice storage unit 3 and pipeline
Resistance, lift take 28 meters, and residue overcomes satisfaction by two stage pump 42.Under air conditioning operating condition, two stage pump 42 overcomes ice storage plate
Resistance and associated conduit resistance are changed, the lift of two stage pump 42 takes 15 meters.Show primary pump 41 each by the selection of above-mentioned lift
Lift is substantially suitable under operating condition, and working efficiency is higher, only under air conditioning operating condition, needs two pumps while opening.Therefore,
Under non-air conditioning operating condition, when load is smaller, each working condition requirement can be met completely by opening primary pump 41, and secondary valve passes through the
Two switching valves 52 bypass falls two stage pump 42, compares two-stage (two-speed) pump Two-way Cycle, opens a set of primary pump 41 less, can be substantially energy saving.
The present embodiment have the advantages that refrigeration system can under most of operating condition single pump operation, air conditioning operating condition
Lower two-stage pump operation, eg pump operational efficiency are high；The application of eg pump flow lift is accurate, operates on high-efficiency point always,
Energy-saving effect is significant.
Claims (10)
1. a kind of ice storage ethylene glycol second level pump installation, which is characterized in that including refrigeration host computer, ice storage unit, heat exchanger, refrigeration
General pipeline, the water inlet of the low temperature side of the heat exchanger connect the water outlet of the refrigeration general pipeline, the low temperature side of the heat exchanger
Water outlet connects the water inlet of the refrigeration general pipeline, and the high temperature side of the heat exchanger connects refrigeration load, the refrigeration host computer
Water outlet connects the water inlet of the ice storage unit, includes multiple pipe nodes on the refrigeration general pipeline；
The water outlet of the refrigeration general pipeline connects the first pipe node, and the water inlet of the refrigeration general pipeline connects the second pipe node, institute
The water outlet connection third pipe node of ice storage unit is stated,
Primary pump is arranged between first pipe node and the water inlet of the refrigeration host computer, and the two stage pump is arranged described
Between second pipe node and the third pipe node；
It is provided with the first connecting pipe between second pipe node and the third pipe node, is set on first connecting pipe
It is equipped with the first switching valve；
It is provided with the second connecting pipe between first pipe node and the third pipe node, is set on second connecting pipe
It is equipped with the second switching valve.
2. a kind of ice storage ethylene glycol second level pump installation according to claim 1, which is characterized in that the heat exchanger is plate
Formula heat exchanger.
3. a kind of ice storage ethylene glycol second level pump installation according to claim 1, which is characterized in that the refrigeration host computer
It is provided with third connecting pipeline between water inlet and water outlet, is provided with third switching valve on the third connecting pipeline.
4. a kind of ice storage ethylene glycol second level pump installation according to claim 1, which is characterized in that the ice storage unit
It is provided with the 4th connecting pipe between water inlet and water outlet, is provided with the 4th switching valve on the 4th connecting pipe.
5. a kind of ice storage ethylene glycol second level pump installation according to claim 1, which is characterized in that the ice storage unit packet
Multiple Ice Storage Tanks are included, the water inlet of the Ice Storage Tank is all connected with the water inlet of the ice storage unit, the water outlet of the Ice Storage Tank
It is all connected with the water outlet of the ice storage unit.
6. a kind of ice storage ethylene glycol second level pump installation according to claim 5, which is characterized in that each Ice Storage Tank
Water inlet and water outlet be respectively provided with a control valve.
7. a kind of ice storage ethylene glycol second level pump installation according to claim 1, which is characterized in that the ice storage unit
Water inlet is provided with the 5th switching valve.
8. a kind of ice storage ethylene glycol second level pump installation according to claim 1, which is characterized in that the refrigeration general pipeline's
Water outlet is provided with the 6th switching valve.
9. a kind of ice storage ethylene glycol second level pump installation according to claim 1, which is characterized in that the refrigeration host computer
Water outlet is provided with the 7th switching valve.
10. a kind of ice storage ethylene glycol second level pump installation according to claim 1, which is characterized in that the primary pump and
The two stage pump is frequency conversion eg pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821640948.3U CN208859762U (en) | 2018-10-10 | 2018-10-10 | Ice storage ethylene glycol second level pump installation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821640948.3U CN208859762U (en) | 2018-10-10 | 2018-10-10 | Ice storage ethylene glycol second level pump installation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208859762U true CN208859762U (en) | 2019-05-14 |
Family
ID=66420606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821640948.3U Expired - Fee Related CN208859762U (en) | 2018-10-10 | 2018-10-10 | Ice storage ethylene glycol second level pump installation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208859762U (en) |
-
2018
- 2018-10-10 CN CN201821640948.3U patent/CN208859762U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190514 Termination date: 20211010 |
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| CF01 | Termination of patent right due to non-payment of annual fee |