CN203783711U - Cooling water auxiliary system for emergency diesel generator set in nuclear power station - Google Patents
Cooling water auxiliary system for emergency diesel generator set in nuclear power station Download PDFInfo
- Publication number
- CN203783711U CN203783711U CN201420025934.6U CN201420025934U CN203783711U CN 203783711 U CN203783711 U CN 203783711U CN 201420025934 U CN201420025934 U CN 201420025934U CN 203783711 U CN203783711 U CN 203783711U
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- water
- cooling water
- diesel engine
- outlet
- heat exchanger
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Abstract
The utility model relates to a cooling water auxiliary system for an emergency diesel generator set in a nuclear power station. The cooling water auxiliary system comprises a water treatment tank, a cooling agent conveying pump, an expansion water tank, a heat exchanger and a diesel engine, wherein the outlet of the water treatment tank is connected with the water inlet of the expansion water tank through the cooling agent conveying pump; the water outlet of the expansion water tank is connected with the cooling water inlet of the diesel engine; the cooling water outlet of the diesel engine is connected with the water inlet of the heat exchanger; the water outlet of the heat exchanger is connected with the cooling water inlet of the diesel engine; the steam outlet of the diesel engine is connected with the steam inlet of the expansion water tank. The cooling water auxiliary system is characterized in that a water collecting tank is connected in series between the heat exchanger and the diesel engine. The cooling water auxiliary system is low in cost and simple in structure, and safe and reliable starting and running of the emergency diesel generator set under the condition of no commercial power or external cooling water can be ensured.
Description
Technical field
The utility model relates to cooling water auxiliary system, specifically nuclear power station emergency diesel dynamo group cooling water auxiliary system.
Background technique
Nuclear power station emergency diesel dynamo group is one of critical facility of nuclear plant safety reliable operation, and its function is in nuclear power station, to press the power supply of core supplementary equipment in the time of outside AC power supply system dead electricity, to guarantee reactor safety shutdown, prevents device damage.And as one of guarantee of diesel engine safety reliable operation, cooling water auxiliary system is most important to the stable operation of diesel generating set.Existing cooling water auxiliary system is made up of water treatment case, coolant feed pump, swelling water tank, heat exchanger and diesel engine conventionally, when normal or diesel generating set has normally moved at civil power, can meet cooling needs.But; under without the civil power also condition without external refrigeration water; no-load running a period of time after needing emergency diesel dynamo group to start, then normally move at full capacity a period of time, then when normal power generation; due to cooling water inflow deficiency; will cause water temperature over-high and emergency shutdown, even initiating failure or damage equipment.Therefore, design a kind of with low cost, simple in structure and can ensure emergency diesel dynamo group without civil power also without the condition of external refrigeration water under the nuclear power station emergency diesel dynamo group cooling water auxiliary system of safe and reliable start-up and operation very necessary.
Summary of the invention
The purpose of this utility model be to provide a kind of with low cost, simple in structure and can ensure emergency diesel dynamo group without civil power also without the condition of external refrigeration water under the nuclear power station emergency diesel dynamo group cooling water auxiliary system of safe and reliable start-up and operation.
For achieving the above object, the utility model adopts following technological scheme: nuclear power station emergency diesel dynamo group cooling water auxiliary system, comprise water treatment case, coolant feed pump, swelling water tank, heat exchanger and diesel engine, the outlet of water treatment case is connected with the water intake of swelling water tank by coolant feed pump, the water outlet of swelling water tank is connected with the cooling water inlet of diesel engine, the coolant outlet of diesel engine is connected with the water intake of heat exchanger, the water outlet of heat exchanger is connected with the cooling water inlet of diesel engine, the steam (vapor) outlet of diesel engine is connected with the steam inlet of swelling water tank, it is characterized in that being also serially connected with between described heat exchanger and diesel engine header tank.
Further, the coolant outlet of described diesel engine is connected with the entrance of heat exchanger, and the outlet of described heat exchanger is connected with the entrance of header tank, and the outlet of described header tank is connected with the cooling water inlet of diesel engine.
Further, described header tank is cylindrical container.
Further, the volume of described header tank is 3～6m
3.
The utility model adopts header tank to carry out cooling water inflow in increase system, make emergency diesel dynamo group can be after starting under also without the condition of external refrigeration water without civil power no-load running a period of time, then normally move at full capacity a period of time, normal power generation then, thereby ensured the safe and reliable start-up and operation of diesel generating set.The utility model is with low cost, simple in structure.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
In figure: 1-water treatment case; The outlet of 1.1-water treatment case; 2-coolant feed pump; 3-swelling water tank; 3.1-swelling water tank water intake; 3.2-swelling water tank water outlet; 3.3-swelling water tank steam inlet; 4-heat exchanger; 4.1-heat exchanger water intake; 4.2-heat exchanger water outlet; 5-diesel engine; 5.1-diesel engine cooling water inlet; 5.2-diesel engine cooling water out; 5.3-diesel engine steam (vapor) outlet; 6-header tank; 6.1-header tank entrance; The outlet of 6.2-header tank.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further described, but this embodiment should not be construed as restriction of the present utility model.
Nuclear power station emergency diesel dynamo group cooling water auxiliary system shown in figure, comprise water treatment case 1, coolant feed pump 2, swelling water tank 3, heat exchanger 4 and diesel engine 5, the outlet 1.1 of water treatment case 1 is connected with the water intake 3.1 of swelling water tank 3 by coolant feed pump 2, the water outlet 3.2 of swelling water tank 3 is connected with the cooling water inlet 5.1 of diesel engine 5, the coolant outlet 5.2 of diesel engine 5 is connected with the water intake 4.1 of heat exchanger 4, the water outlet 4.2 of heat exchanger 4 is connected with the cooling water inlet 5.1 of diesel engine 5, the steam (vapor) outlet 5.3 of diesel engine 5 is connected with the steam inlet 3.3 of swelling water tank 3, between described heat exchanger 4 and diesel engine 5, be also serially connected with header tank 6.
Preferred embodiment is, in such scheme, the coolant outlet 5.2 of described diesel engine 5 is connected with the entrance 4.1 of heat exchanger 4, and the outlet 4.2 of described heat exchanger 4 is connected with the entrance 6.1 of header tank 6, and the outlet 6.2 of described header tank 6 is connected with the cooling water inlet 5.1 of diesel engine 5.
Preferred embodiment is that, in such scheme, described header tank 6 is cylindrical container.
Preferred embodiment is that, in such scheme, the volume of described header tank 6 is 3～6 m
3.
The content not being described in detail in this specification, belongs to the known prior art of those skilled in the art.
Claims (4)
1. nuclear power station emergency diesel dynamo group cooling water auxiliary system, comprise water treatment case (1), coolant feed pump (2), swelling water tank (3), heat exchanger (4) and diesel engine (5), the outlet (1.1) of water treatment case (1) is connected with the water intake (3.1) of swelling water tank (3) by coolant feed pump (2), the water outlet (3.2) of swelling water tank (3) is connected with the cooling water inlet (5.1) of diesel engine (5), the coolant outlet (5.2) of diesel engine (5) is connected with the water intake (4.1) of heat exchanger (4), the water outlet (4.2) of heat exchanger (4) is connected with the cooling water inlet (5.1) of diesel engine (5), the steam (vapor) outlet (5.3) of diesel engine (5) is connected with the steam inlet (3.3) of swelling water tank (3), it is characterized in that: between described heat exchanger (4) and diesel engine (5), be also serially connected with header tank (6).
2. nuclear power station emergency diesel dynamo group cooling water auxiliary system according to claim 1, it is characterized in that: the coolant outlet (5.2) of described diesel engine (5) is connected with the entrance (4.1) of heat exchanger (4), the outlet (4.2) of described heat exchanger (4) is connected with the entrance (6.1) of header tank (6), and the outlet (6.2) of described header tank (6) is connected with the cooling water inlet (5.1) of diesel engine (5).
3. nuclear power station emergency diesel dynamo group cooling water auxiliary system according to claim 1 and 2, is characterized in that: described header tank (6) is cylindrical container.
4. nuclear power station emergency diesel dynamo group cooling water auxiliary system according to claim 3, is characterized in that: the volume of described header tank (6) is 3～6m
3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420025934.6U CN203783711U (en) | 2014-01-16 | 2014-01-16 | Cooling water auxiliary system for emergency diesel generator set in nuclear power station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420025934.6U CN203783711U (en) | 2014-01-16 | 2014-01-16 | Cooling water auxiliary system for emergency diesel generator set in nuclear power station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203783711U true CN203783711U (en) | 2014-08-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420025934.6U Expired - Fee Related CN203783711U (en) | 2014-01-16 | 2014-01-16 | Cooling water auxiliary system for emergency diesel generator set in nuclear power station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203783711U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108087093A (en) * | 2017-12-31 | 2018-05-29 | 沪东重机有限公司 | The cooling water off-line equipment of nuclear power diesel emergency generating set |
-
2014
- 2014-01-16 CN CN201420025934.6U patent/CN203783711U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108087093A (en) * | 2017-12-31 | 2018-05-29 | 沪东重机有限公司 | The cooling water off-line equipment of nuclear power diesel emergency generating set |
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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 |
Granted publication date: 20140820 Termination date: 20200116 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |