CN102486940A - Circulating cooling water system - Google Patents
Circulating cooling water system Download PDFInfo
- Publication number
- CN102486940A CN102486940A CN201010575282XA CN201010575282A CN102486940A CN 102486940 A CN102486940 A CN 102486940A CN 201010575282X A CN201010575282X A CN 201010575282XA CN 201010575282 A CN201010575282 A CN 201010575282A CN 102486940 A CN102486940 A CN 102486940A
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- China
- Prior art keywords
- water
- equipment
- cooled
- cistern
- cooling device
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Abstract
The invention aims to provide a circulating cooling water system which has the advantages of small occupied area and less equipment and can be used for saving the water use amount. The circulating cooling water system is realized by the following technical scheme: the circulating cooling water system comprises an impounding reservoir, equipment to be cooled and a cooling device, wherein the impounding reservoir, the equipment to be cooled and the cooling device are connected by virtue of water pipes to form a circulated sealed loop; the impounding reservoir and the cooling device are connected by virtue of a cooling water return pipe; the cooling water return pipe is provided with a first solenoid valve; the impounding reservoir and the equipment to be cooled are connected by virtue of a water inlet pipe; the water inlet pipe is provided with a water pump; the equipment to be cooled and the cooling device are directly connected by virtue of a water return pipe; the water return pipe is provided with a second solenoid valve; the impounding reservoir is provided with two liquid level relays; when the water level of the impounding reservoir exceeds the highest value of a set water level, the first liquid level relay gives out a signal to cause the electric control equipment to close the solenoid valve; and when the water level of the impounding reservoir is lower than the set water level, the second liquid level relay gives out a signal to cause the water pump to stop operation.
Description
Technical field
The present invention relates to the mechanical chemical industry apparatus field, concretely, relate to a kind of recirculating cooling water system.
Background technology
Recirculating cooling water system be with water as heat eliminating medium, and a kind of cooling water system that recycles.Recirculating cooling water system mainly is made up of cooling device, water pump and pipeline.By water pump the chilled water in the circulation cistern is delivered in the equipment to be cooled through water inlet pipe; Chilled water with apparatus cools to be cooled after; Directly be delivered in the cycling hot pond by return pipe, another water pump is extracted hot water out from the cycling hot pond, is delivered in the cooling tower through hot water return pipe and cools off; If discharging at once, cold water is only used once (title once-through cooling water system).Make intensification cold water flow through cooling device then water temperature return and fall, available pump is sent production system back to and is reused, the consumption of cold water reduces greatly, often can practice thrift more than 95%.Chilled water accounts for about 70% of industrial water consumption, and therefore, recirculating cooling water system has worked to practice thrift a large amount of process waters.But the floor area of conventional apparatus is bigger, and number of devices is many, and energy resource consumption is big, and it is long that water quality is touched the oxygen time, and maintenance cost is higher relatively.
Summary of the invention
The objective of the invention is to provide a kind of floor area little, equipment is few, the recirculating cooling water system of reduce water consumption.
The present invention adopts following technical scheme to realize: recirculating cooling water system comprises cistern, and equipment to be cooled and cooling device have water pipe to link to each other between cistern, equipment to be cooled and the cooling device, make the three form the circulation closed loop.
Link to each other by CWR between described cistern and the cooling device, first solenoid valve is arranged on the CWR.
Described cistern links to each other through water inlet pipe with equipment to be cooled, and water inlet pipe is provided with water pump.
Directly joined by return pipe between said equipment to be cooled and the cooling device, this return pipe is provided with second solenoid valve.
Be provided with two liquid level relays in the described cistern, when the water level of cistern surpassed the mxm. of designated water level, first liquid level relay just sends signal made control panel close solenoid valve.When the water level of cistern was lower than designated water level, second liquid level relay just sends signal made water pump out of service.
After adopting such scheme, compared with prior art have following beneficial effect:
(1) hot water self that equipment to be cooled is discharged in this recirculating cooling water system has certain pressure, just can the hot water of discharging be depressed in the cooling device so need not apply external pressure.
(2) water level of cistern is done the highest setting, made chilled water be exposed to airborne time decreased, helped the maintenance of cooling water temperature; Make the certain water level of maintenance in the cistern, guarantee the demand of system to be cooled chilled water; Moderate to guarantee the water level in the cistern, reduced touching the oxygen time of chilled water, thereby reduced by touching the water evaporates that the oxygen time causes, also make chilled water not subject to pollute.
(3) when the water level of cistern had surpassed minimum setting, water pump promptly quit work, and when the water level of treating cistern was on the minimum setting value, water pump was started working, thereby reduced the water pump operation time, had saved energy consumption and water pump maintenance cost.
(4) solenoid valve on the return pipe between system to be cooled and the cooling device is used for guaranteeing the normal quick maintenance of system and safeguarding, and ensures long-term shutdown etc.
(5) saved the hot water cistern with and relevant device, reduced floor area, also reduced the cost that system sets up.
Description of drawings
Fig. 1 is a structural representation of the present invention
Embodiment
Reference numeral shown in Figure 1 is following: equipment to be cooled 1, cistern 2, cooling device 3, water inlet pipe 4, CWR 5, return pipe 6, water pump 7, first solenoid valve 8, second solenoid valve 9, first liquid level relay 10, second liquid level relay 11.
Recirculated cooling water device is when operation, and water pump 7 is delivered to equipment 1 to be cooled with the chilled water in the cistern 2 through water inlet pipe 4, after chilled water cools off equipment 1 to be cooled; Directly be delivered in the cooling device 3 and cool off by return pipe 6; Water is recycled to cistern 2 through CWR 5 after cooling, so far accomplish circulation; And guarantee that total system is in the cool cycles state all the time, satisfied the cooling requirement of equipment 1 to be cooled.
When the water level of cistern 2 surpassed the mxm. of designated water level, first liquid level relay 10 just sends signal made control panel close first solenoid valve 8.When the water level of cistern 2 was lower than designated water level, second liquid level relay 11 just sends signal made water pump 7 out of service.
Claims (5)
1. recirculating cooling water system is characterized in that: be by cistern, equipment to be cooled and cooling device constitute, and have water pipe to link to each other between cistern, equipment to be cooled and the cooling device, make the three form the circulation closed loop.
2. a kind of recirculating cooling water system according to claim 1 is characterized in that: linked to each other by CWR between described cistern and the cooling device, first solenoid valve is arranged on the CWR.
3. a kind of recirculating cooling water system according to claim 1 is characterized in that: described cistern links to each other through water inlet pipe with equipment to be cooled, and water inlet pipe is provided with water pump.
4. a kind of recirculating cooling water system according to claim 1 is characterized in that: directly joined by return pipe between said equipment to be cooled and the cooling device, this return pipe is provided with second solenoid valve.
5. a kind of recirculating cooling water system according to claim 1; It is characterized in that: be provided with two liquid level relays in the described cistern; When the water level of cistern surpassed the mxm. of designated water level, first liquid level relay just sends signal made control panel close solenoid valve.When the water level of cistern was lower than designated water level, second liquid level relay just sends signal made water pump out of service.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010575282XA CN102486940A (en) | 2010-12-06 | 2010-12-06 | Circulating cooling water system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010575282XA CN102486940A (en) | 2010-12-06 | 2010-12-06 | Circulating cooling water system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102486940A true CN102486940A (en) | 2012-06-06 |
Family
ID=46152418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010575282XA Pending CN102486940A (en) | 2010-12-06 | 2010-12-06 | Circulating cooling water system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102486940A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04243175A (en) * | 1991-01-17 | 1992-08-31 | Nippon Denki Laser Kiki Eng Kk | Cooler |
| CN1655666A (en) * | 2004-02-10 | 2005-08-17 | 日立电线株式会社 | Liquid circulation type cooling system |
| CN201731791U (en) * | 2010-07-27 | 2011-02-02 | 大连市铭源全科技开发有限公司 | Circulating cooling water device |
-
2010
- 2010-12-06 CN CN201010575282XA patent/CN102486940A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04243175A (en) * | 1991-01-17 | 1992-08-31 | Nippon Denki Laser Kiki Eng Kk | Cooler |
| CN1655666A (en) * | 2004-02-10 | 2005-08-17 | 日立电线株式会社 | Liquid circulation type cooling system |
| CN201731791U (en) * | 2010-07-27 | 2011-02-02 | 大连市铭源全科技开发有限公司 | Circulating cooling water device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120606 |