CN203422678U - Closed circulation system of demineralized water - Google Patents
Closed circulation system of demineralized water Download PDFInfo
- Publication number
- CN203422678U CN203422678U CN201320415061.5U CN201320415061U CN203422678U CN 203422678 U CN203422678 U CN 203422678U CN 201320415061 U CN201320415061 U CN 201320415061U CN 203422678 U CN203422678 U CN 203422678U
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- water
- oil cooler
- tank
- demineralized water
- demineralized
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Abstract
The utility model discloses a closed circulation system of demineralized water in the technical field of industrial water treatment. With the closed circulation system of demineralized water, a flow pressure head in a water pipe of a gas turbine oil cooler is kept below a work pressure of the gas turbine oil cooler and flow requirement of an oil cooler for high cooling efficiency is fulfilled through replacing a method in the prior art in which a demineralized water supply pipe is used directly for supplying water to a demineralized water tank with a method in which the demineralized water supply pipe is used for supplying water for an elevated water tank, the elevated water tank is used for supplying water for the demineralized water tank, and the elevated water tank is higher than the demineralized water tank for a certain degree.
Description
Technical field
The utility model belongs to Treatment of Industrial Water technical field, is specifically related to demineralized water closed circulation system.
Background technology
At present in factory, GE combustion machine oil cooler adopts is that the mode of carrying out heat interchange with demineralized water is carried out cooling, the demineralized water closed circulation system of using adopts plant area's demineralized water feed pipe moisturizing, plant area's supplementing water pressure is 0.5Mpa, cooling-water pump adopts variable frequency control, and pressure head during actual motion is 200t/h up to 0.8MPa, flow.In order to carry out better heat interchange; GE combustion machine oil cooler working pressure is in 0.35Mpa left and right; flow need to be controlled at 350t/h left and right; therefore adopt plant area's demineralized water feed pipe to carry out cooling; awp in GE combustion machine oil cooler is much larger than design effort pressure; thereby the situation that causes the brass tube fracture in heat interchanger to cause whole GE combustion machine to shut down, and actual flow is far below rated flow, can not guarantee cooling effectiveness.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of demineralized water closed circulation system that guarantees to fire machine oil cooler cooling effectiveness, equipment can build-up of pressure not be damaged.
In order to solve the problems of the technologies described above, the utility model provides following technical scheme:
Technical scheme one: demineralized water closed circulation system, comprise sweet-water tank, cooling-water pump and combustion machine oil cooler, the water inlet of sweet-water tank connects demineralized water feed pipe, and water delivering orifice connects cooling-water pump; Between the water inlet of cooling-water pump and combustion machine oil cooler, be connected with cooling water pipe; The water inlet of sweet-water tank is connected with the elevated tank with sweet-water tank with difference in height, demineralized water feed pipe access elevated tank, and elevated tank is that sweet-water tank supplies water; Elevated tank is provided with overflow vent.
In order to make the cooling effectiveness that fires machine oil cooler improve, need to improve the flow of water in oil cooler, according to the principle of work of fluid mechanics and cooling-water pump (employing centrifugal pump), Centrifugal Pump is directly proportional to rotating speed, square being directly proportional of pressure head and rotating speed, improve flow and must improve the frequency of operation (cooling-water pump is by Frequency Converter Control) that rotating speed improves frequency converter, but increase frequency, can make pressure head increase more, the pressure of the chilled water in oil cooler will seriously exceed the working pressure range of oil cooler, cause cold fuel copper tube to break, therefore both met again the efficient self-security that guarantees again oil cooler of cooling effectiveness, need to reduce the pressure of water system.By calculating and conceiving, can utilize the gravity pressure of fluid to realize the pressure control in water system, as long as calculate the numerical value of the delivery pressure head of demineralized water before entering cooling-water pump, the pressure head that the difference in height that elevated tank and sweet-water tank is correspondingly set according to the numerical value calculating can meet the current in water pipe can not surpass the working pressure of oil cooler, can meet the traffic requirement that oil cooler cooling effectiveness is high again.The overflow vent of elevated tank is in order to guarantee that water level in elevated tank is in a constant position, thereby the pressure head not affecting in follow-up water pipe changes, by demineralized water feed pipe constantly to high-level tank water, when the water in elevated tank reaches default water level, the follow-up water entering flows out through overflow vent, both guarantee the pressure stability of elevated tank, and guaranteed again not have air to enter into water pipe, thereby improved the leakproofness of whole system.
Technical scheme two: for saving water resource, avoid unnecessary waste, overflow vent connects demineralized water feed pipe, the water delivering orifice of combustion machine oil cooler connects elevated tank by pipeline.
Technical scheme three: in order to improve cooled quality, be provided with filtrator on the water delivering orifice of combustion machine oil cooler and the connecting tube of elevated tank.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model demineralized water closed circulation system.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail:
As shown in Figure 1, demineralized water closed circulation system, comprises sweet-water tank 1, centrifugal pump 9 and combustion machine oil cooler 8, and the water inlet 11 of sweet-water tank 1 is connected with the elevated tank 3 with sweet-water tank 1 with difference in height, and the water delivering orifice 12 of sweet-water tank 1 connects centrifugal pump 9; Between the water inlet of centrifugal pump 9 and combustion machine oil cooler 8, be connected with cooling water pipe 7; Demineralized water feed pipe 5 access elevated tanks 3, elevated tank 3 is that sweet-water tank 1 supplies water; Elevated tank 3 is provided with overflow vent 31.
In order to make the cooling effectiveness that fires machine oil cooler 8 improve, need to improve the flow of water in combustion machine oil cooler 8, according to the principle of work of fluid mechanics and centrifugal pump 9, centrifugal pump 9 flows are directly proportional to rotating speed, square being directly proportional of pressure head and rotating speed, improve flow (reaching 350t/h～400t/h) and must improve the frequency of operation (centrifugal pump 9 is by Frequency Converter Control) that rotating speed improves frequency converter, but increase frequency, can make pressure head increase more, the pressure (0.7～1.1Mpa) of the chilled water in combustion machine oil cooler 8 will seriously exceed working pressure (0.3～0.4Mpa) scope of combustion machine oil cooler 8, cause firing machine oil cooler 8 brass tube fractures, therefore both met again the efficient self-security that guarantees again combustion machine oil cooler 8 of cooling effectiveness, need to reduce the pressure of water system.By calculating and conceiving, can utilize the gravity pressure of fluid to realize the pressure control in water system, as long as calculate the numerical value of the delivery pressure head of demineralized water before entering centrifugal pump, by calculating difference in height between 10～15m, the present embodiment is got 12.35m, entering the pressure head producing before centrifugal pump 9, it is 0.05Mpa left and right, the current pressure head (0.35MPa) meeting in the water pipe after centrifugal speed-raising can not surpass the working pressure of combustion machine oil cooler 8, can meet again flow (380t/h) requirement that combustion machine oil cooler 8 cooling effectiveness are high.The overflow vent 31 of elevated tank 3 is in order to guarantee that water level in elevated tank 3 is in a constant position, thereby the pressure head not affecting in follow-up water pipe changes, by demineralized water feed pipe 5, constantly to elevated tank 3, supply water, when the water in elevated tank 3 reaches default water level, the follow-up water entering flows out through overflow vent 31, both guaranteed the pressure stability of elevated tank 3, having guaranteed does not again have air to enter into water pipe, thereby improves the leakproofness of whole system; For saving water resource, avoid unnecessary waste, overflow vent 31 connects demineralized water feed pipe 5 by reflux line 4, and the water delivering orifice of combustion machine oil cooler 8 connects elevated tank 3 by pipeline; In order to improve cooled quality, on the water delivering orifice of combustion machine oil cooler 8 and the connecting tube of elevated tank 3, be provided with filtrator 6.
Above-described is only preferred implementation of the present utility model, should be understood that for a person skilled in the art, not departing under the prerequisite of the utility model structure, can also make some distortion and improvement, these can not affect effect and practical applicability that the utility model is implemented.
Claims (3)
1. demineralized water closed circulation system, comprises sweet-water tank, cooling-water pump and combustion machine oil cooler, and the water inlet of sweet-water tank connects demineralized water feed pipe, and water delivering orifice connects cooling-water pump; Between the water inlet of cooling-water pump and combustion machine oil cooler, be connected with cooling water pipe, it is characterized in that: the water inlet of sweet-water tank is connected with the elevated tank with sweet-water tank with difference in height, demineralized water feed pipe access elevated tank, elevated tank is that sweet-water tank supplies water; Elevated tank is provided with overflow vent.
2. demineralized water closed circulation system according to claim 1, is characterized in that: described overflow vent connects demineralized water feed pipe, and the water delivering orifice of combustion machine oil cooler connects elevated tank by pipeline.
3. demineralized water closed circulation system according to claim 1 and 2, is characterized in that: on the water delivering orifice of combustion machine oil cooler and the connecting tube of elevated tank, be provided with filtrator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320415061.5U CN203422678U (en) | 2013-07-12 | 2013-07-12 | Closed circulation system of demineralized water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320415061.5U CN203422678U (en) | 2013-07-12 | 2013-07-12 | Closed circulation system of demineralized water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203422678U true CN203422678U (en) | 2014-02-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320415061.5U Expired - Fee Related CN203422678U (en) | 2013-07-12 | 2013-07-12 | Closed circulation system of demineralized water |
Country Status (1)
| Country | Link |
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| CN (1) | CN203422678U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107299861A (en) * | 2016-04-16 | 2017-10-27 | 上海华电闵行能源有限公司 | Boat changes the light-duty combustion engine water filling reclaiming system of type |
-
2013
- 2013-07-12 CN CN201320415061.5U patent/CN203422678U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107299861A (en) * | 2016-04-16 | 2017-10-27 | 上海华电闵行能源有限公司 | Boat changes the light-duty combustion engine water filling reclaiming system of type |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20140205 Termination date: 20180712 |