CN207761865U - A kind of high-temperature water preheating equipment for nuclear power diesel emergency generating set - Google Patents
A kind of high-temperature water preheating equipment for nuclear power diesel emergency generating set Download PDFInfo
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- CN207761865U CN207761865U CN201721880008.7U CN201721880008U CN207761865U CN 207761865 U CN207761865 U CN 207761865U CN 201721880008 U CN201721880008 U CN 201721880008U CN 207761865 U CN207761865 U CN 207761865U
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Abstract
The utility model belongs to diesel-driven generator technical field, a kind of specially high-temperature water preheating equipment for nuclear power diesel emergency generating set, including high-temperature water preheating pipe, high-temperature water/oil heat exchanger, pre- heat pump, heat tape, pressure gauge, shut-off valve, check valve, temperature controller and temperature sensor.The equipment is by the winding heat tape on preheating high-temperature conduit road and uses the temperature controller dynamic control water temperature with PID controller, to reach defined standby vehicle temperature.The utility model can not only improve the reliability of system, but also by cancelling heater system cost be greatly reduced, and reduce the resistance of entire pipeline, make diesel engine high-temperature water in high-temperature water preheating pipe smooth outflow.
Description
Technical field
The utility model belongs to diesel-driven generator technical field, and in particular to one kind being used for nuclear power diesel emergency generating set
High-temperature water preheating equipment.
Background technology
With increasingly severe to the pollution of environment as the fossil fuel of representative using coal and oil, using nuclear power as representative
New energy is greatly developed in recent years.
Emergency generator is one of the important component of nuclear power plant system equipment, since nuclear power is to security of system
It is required that it is very high, it is quite high to the reliability requirement of each system of diesel emergency generating set.Entire unit is in throughout the year
Hot stand-by duty, important composition of the high-temperature water system as Emergency generator, for cooling down cylinder jacket of diesel engine and cylinder
Head.High-temperature water preheating is used for when diesel engine is in hot stand-by duty, ensures that the coolant water temperature of high-temperature water system meets diesel engine
Into machine temperature, while ensureing that lubricating oil temperature, can when ensureing diesel engine starting in the range of meeting diesel engine starting
Quickly load and reduction abrasion.It was verified that either overheat is still subcooled, it can all make the use of diesel emergency generating set
Reduced performance, reduced service life can also cause a series of failure, and then cause the chronic progressive of entire unit performance.
The utility model is based on the above present situation, has invented a kind of for nuclear power diesel emergency generating set high-temperature water preheating
Method, the reliability, economy and stability of high-temperature water system can be improved, achieve the purpose that the safety of nuclear power generating sets.
Invention content
To solve the above problem of the prior art, the utility model proposes one kind being used for nuclear power diesel emergency generating set
High-temperature water preheating equipment, improve the reliability, economy and stability of high-temperature water system, reach the safety of nuclear power generating sets
Purpose.
The utility model proposes a kind of high-temperature water preheating equipments for nuclear power diesel emergency generating set, including height
Warm water preheating pipe, high-temperature water/oil heat exchanger, pre- heat pump, heat tape, pressure gauge, shut-off valve, check valve, temperature control
Device and temperature sensor；
The pre- heat pump is serially connected in high-temperature water preheating pipe；Diesel engine high-temperature water is driven by pre- heat pump, pre- in high-temperature water
It is circulated in heat pipeline；The inlet and outlet of the high-temperature water preheating pipe connection diesel engine, diesel engine high temperature water flow
Heat exchange compartment through diesel engines；The high-temperature water preheating pipe is also connected with high-temperature water/oil heat exchanger, diesel engine high-temperature water
Flow through high-temperature water/oil heat exchanger；
The heat tape is connected with temperature controller, and heat tape is wound uniformly in the outer surface of high-temperature water preheating pipe
On；The shut-off valve and check valve respectively have several, are distributed in high-temperature water preheating pipe；The pressure gauge and temperature sensor
Respectively there are two groups, is separately positioned on the inlet and outlet of diesel engine；The temperature sensor is communicated with temperature controller holding；
PID controller is equipped in the temperature controller.
In the utility model, restricting orifice has also been concatenated in the high-temperature water preheating pipe.
In the utility model, in the periphery one layer of thermal insulation layer of package for the high-temperature water preheating pipe for being wrapped heat tape.
Compared with the prior art, the beneficial effects of the utility model are：
(1) heat tape is directly wound on high-temperature water economizer bank road, cancels heater and system cost is greatly reduced,
And reduce the resistance of entire pipeline, make diesel engine high-temperature water in high-temperature water preheating pipe smooth outflow；
(2) it by the temperature sensor collecting temperature data being distributed on upper pipeline, is transferred to temperature controller and is handled,
System arrangement is simple, can correctly react entire high-temperature water preheating temperature and quickly meet with a response；
(3) temperature controller uses PID controller, and dynamic control, the stability of system, sensitivity are carried out to temperature change
It is all greatly improved with reliability.
Description of the drawings
Fig. 1 is the schematic diagram of the high-temperature water preheating equipment for nuclear power diesel emergency generating set.
Figure label：1 is high-temperature water preheating pipe, and 2 be temperature sensor, and 3 be temperature controller, and 4 be high-temperature water/lubricating oil
Heat exchanger, 5 be pre- heat pump, and 6 be pressure gauge, and 7 shut-off valves, 8 check valves, 9 be restricting orifice, and 10 be diesel engine.
Specific implementation mode
The utility model will be explained in detail with embodiment combination attached drawing below.The present embodiment is apparent clear reason
It solves the structure of this patent utility model and uses process, but the protection domain of this patent utility model cannot be limited with this.
Embodiment 1
It is a kind of high-temperature water preheating equipment for nuclear power diesel emergency generating set, including high-temperature water as shown in Figure 1
Preheating pipe 1, high-temperature water/oil heat exchanger 4, pre- heat pump 5, heat tape, pressure gauge 6, shut-off valve 7, check valve 8, temperature control
Device 3 and temperature sensor 2 processed；
The pre- heat pump 5 is serially connected in high-temperature water preheating pipe 1；Diesel engine high-temperature water is driven by pre- heat pump 5, in high-temperature water
It is circulated in preheating pipe 1；The high-temperature water preheating pipe 1 connects the inlet and outlet of diesel engine, diesel engine high temperature
Water flows through the heat exchange compartment of diesel engines, is preheated to diesel engine；
The high-temperature water preheating pipe 1 is also connected with high-temperature water/oil heat exchanger 4, and diesel engine high temperature water flow is through high-temperature water/cunning
Oil heat exchanger 4 is for heating lubricating oil；
The heat tape is wound uniformly on the outer surface of high-temperature water preheating pipe 1, the control of device 3 temperature controlled；
The shut-off valve 7 and check valve 8 respectively have several, are distributed in high-temperature water preheating pipe 1 for controlling diesel engine high-temperature water
Flow velocity and break-make；The pressure gauge 6 and temperature sensor 2 respectively have two groups, are separately positioned on the inlet and outlet of diesel engine,
Temperature before and after acquisition heat exchange and pressure data；The temperature sensor 2 is communicated with the holding of temperature controller 3；The temperature
It is equipped with PID controller in controller 3, is carried with the change rate of differential circuit measuring temperature with the amplitude of ratio circuit measuring temperature
The sensitivity of high-temperature control, the stability of control circuit is ensured with integrating circuit.
Embodiment 2
On the basis of embodiment 1, restricting orifice 9 is also concatenated in the high-temperature water preheating pipe, for controlling bavin
The flow velocity of oil machine high-temperature water simultaneously forms sinuous flow, and the temperature of diesel engine high-temperature water is made to be uniformly distributed.
Embodiment 3
It is heat-insulated in one layer of the periphery package for the high-temperature water preheating pipe for being wrapped heat tape on the basis of embodiment 1
Layer can prevent high-temperature water and extraneous heat exchange, further increase the control ability of temperature controller 3, improve this equipment pre-add
The ability of hot high-temperature water.
Although the utility model is shown and described with reference to specific embodiment and data in oneself herein, it should be appreciated that institute
The technical staff in category field can carry out various modifications, variations and modifications, and description and attached drawing therefore herein should be to illustrate mesh
Explain and unrestricted the scope of the utility model and spirit.
Claims (3)
1. a kind of high-temperature water preheating equipment for nuclear power diesel emergency generating set, which is characterized in that pre- including high-temperature water
Heat pipeline, high-temperature water/oil heat exchanger, pre- heat pump, heat tape, pressure gauge, shut-off valve, check valve, temperature controller and temperature
Spend sensor；
The pre- heat pump is serially connected in high-temperature water preheating pipe；Diesel engine high-temperature water is driven by pre- heat pump, in high-temperature water economizer bank
It is circulated in road；The inlet and outlet of the high-temperature water preheating pipe connection diesel engine, diesel engine high temperature water flow is through bavin
Heat exchange compartment inside oil machine；The high-temperature water preheating pipe is also connected with high-temperature water/oil heat exchanger, diesel engine high temperature water flow warp
High-temperature water/oil heat exchanger；
The heat tape is connected with temperature controller, and heat tape winding is uniformly on the outer surface of high-temperature water preheating pipe；
The shut-off valve and check valve respectively have several, are distributed in high-temperature water preheating pipe；The pressure gauge and temperature sensor are each
There are two groups, is separately positioned on the inlet and outlet of diesel engine；The temperature sensor is communicated with temperature controller holding；Institute
It states and is equipped with PID controller in temperature controller.
2. the high-temperature water preheating equipment according to claim 1 for nuclear power diesel emergency generating set, feature exists
In also having concatenated restricting orifice in the high-temperature water preheating pipe.
3. the high-temperature water preheating equipment according to claim 1 for nuclear power diesel emergency generating set, feature exists
In in the periphery one layer of thermal insulation layer of package for the high-temperature water preheating pipe for being wrapped heat tape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721880008.7U CN207761865U (en) | 2017-12-28 | 2017-12-28 | A kind of high-temperature water preheating equipment for nuclear power diesel emergency generating set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721880008.7U CN207761865U (en) | 2017-12-28 | 2017-12-28 | A kind of high-temperature water preheating equipment for nuclear power diesel emergency generating set |
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| Publication Number | Publication Date |
|---|---|
| CN207761865U true CN207761865U (en) | 2018-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721880008.7U Active CN207761865U (en) | 2017-12-28 | 2017-12-28 | A kind of high-temperature water preheating equipment for nuclear power diesel emergency generating set |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109854429A (en) * | 2019-03-11 | 2019-06-07 | 北京百度网讯科技有限公司 | Heating system for engine coolant |
| CN111595488A (en) * | 2020-04-15 | 2020-08-28 | 岭东核电有限公司 | Nuclear power station diesel engine oil temperature detection method and device, terminal equipment and storage medium |
-
2017
- 2017-12-28 CN CN201721880008.7U patent/CN207761865U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109854429A (en) * | 2019-03-11 | 2019-06-07 | 北京百度网讯科技有限公司 | Heating system for engine coolant |
| CN109854429B (en) * | 2019-03-11 | 2022-11-18 | 北京百度网讯科技有限公司 | Heating system for engine coolant |
| CN111595488A (en) * | 2020-04-15 | 2020-08-28 | 岭东核电有限公司 | Nuclear power station diesel engine oil temperature detection method and device, terminal equipment and storage medium |
| CN111595488B (en) * | 2020-04-15 | 2022-05-24 | 岭东核电有限公司 | Nuclear power station diesel engine oil temperature detection method and device, terminal equipment and storage medium |
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