CN205225347U - Turbo -engine lube heat utilizes device - Google Patents
Turbo -engine lube heat utilizes device Download PDFInfo
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- CN205225347U CN205225347U CN201521016082.5U CN201521016082U CN205225347U CN 205225347 U CN205225347 U CN 205225347U CN 201521016082 U CN201521016082 U CN 201521016082U CN 205225347 U CN205225347 U CN 205225347U
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Abstract
The utility model provides a make full use of steam turbine existing equipment, minimize scrap build volume, and simply carry out the economizer that utilizes to the abandonment heat effectively, it has not only improved the heat economy nature of unit, has reduced the standard coal consumption of unit, has realized energy saving and emission reduction, accords with the environmental protection requirement. The utility model discloses a turbo -engine lube heat utilizes device is including setting up host computer oil cooler and the condensate system on the owner lubricates go back to the oil pipe way, still including setting up the little steam turbine oil cooler on little turbo -engine lubrication goes back to the oil pipe way, little steam turbine oil cooler concatenates respectively in respective time oil pipe way with the oil circuit of host computer oil cooler, little steam turbine oil cooler is parallelly connected each other with the water route of host computer oil cooler, parallelly connected cooling water inlet and chemical smart processing apparatus's export intercommunication, the intercommunication is responsible for with the condensate water of condenser hot -well export to parallelly connected coolant outlet, be equipped with the vapor seal cooler on the condensate water main line, the water connection that condenses is chemical smart processing apparatus exit extremely.
Description
Technical field
The utility model belongs to the energy saving device reclaiming lubricant oil heat, particularly relates to the energy saving device being exclusively used in steam turbine, feed water pump driving steam turbine bearing lubrication system.
Background technique
Existing turbine oil system mainly comprises main fuel tank, main lubricating oil return pipeline, main lube oil inlet pipe road.Lubricating oil cooling system is made up of oil cooler and condensate system.Condensate system comprises low-temperature heater, vapour condenser, chemical processing device and condensate line, and oil cooler is arranged on in-line usually, and condensate system adopts open type water inlet or enclosed water inlet.The oil cooler of existing lubricating oil cooling system is located between No. 8 low-pressure heaters and chemical precision processing device.
For meeting the requirement of turbo-engine lube, feed water pump driving steam-turbine lubrication oil temperature, usually in unit open cycle cooling water system, introducing cooling water and it is cooled.For the steam turbine of the Guo electricity west and south, Hainan power plant #1, #2 unit and heat pump group, turbo-engine lube flow is about 192m
3/ h, the flow of lubrication of feed water pump driving steam turbine (also claiming small turbine) is about 6 ~ 8t/h, this part lubricant oil respectively by respective oil pump at system internal circulation flow, its heat is taken away by open circulating water, as shown in accompanying drawing 1, Fig. 2, the heat of open circulating water is dispersed in seawater eventually through the circulating water pipeline of large discharge or is carried away in air by natural draft cooling tower, finally causes the heat loss of system, causes the waste of the energy.
Total this, prior art is not also quite reasonable to lubricating oil system heat reuse design, and only turbine oil system heat reuse, not yet carries out reuse for small turbine lubricating oil system heat.
Model utility content
The utility model is for prior art Problems existing, propose a kind ofly to make full use of steam turbine existing equipment, as far as possible reduce Plant reconstruction plant modernization amount and simply and effectively to the energy saving device that waste heat utilizes, it not only increases the heat-economy of unit, reduce the standard coal consumption of unit, achieve energy-saving and emission-reduction, meet environmental requirement.
The utility model is realized by following technical proposals:
A kind of turbo-engine lube heat utilization device, comprise and be arranged on main frame oil cooler on main lubricating oil return pipeline and condensate system, also comprise the small turbine oil cooler be arranged on small turbine lubricating oil return pipeline, the oil circuit of small turbine oil cooler and main frame oil cooler is serially connected in respective return line respectively, the water route of small turbine oil cooler and main frame oil cooler is parallel with one another, cooling water intake in parallel and the outlet of chemical precision processing device, coolant outlet in parallel is responsible for the water of condensation that condenser hotwell exports and is communicated with, water of condensation main line is provided with gland-sealing cooler, water of condensation is connected to chemical precision processing device outlet port.
Further design of the present utility model is, described water of condensation main line also selects connection No. 8 low-pressure heaters by valve.
Further design of the present utility model is also, described condensate system also draws together open type cooling water as cooling source for subsequent use, and open type cooling water is provided with valve on the pipeline of main frame oil cooler and small turbine oil cooler.
Further design of the present utility model is also, condenser hotwell outlet is provided with condensate pump with the connecting pipeline of chemical processing device; Water of condensation main line selects connection No. 8 low-pressure heaters as required by valve, and is provided with gland-sealing cooler on water of condensation main line, then is connected to the chemical outlet of precision processing device and the cooling water inlet of oil cooler by the road.
the utility model has following features compared with other needs the subsidiary engine equipment that cools:
1, because Lubricating Oil Temperature is higher, bearing return oil temperature reaches 65 ~ 70 DEG C, and the heat carried is very large, needs sufficient low-temperature receiver and cools it; On the other hand, water of condensation export from hot well about 35 DEG C, to about 158 DEG C of oxygen-eliminating device entrance, needs the temperature rise of about 123 DEG C, needs sufficient thermal source to heat it on the way; Heat utilization device of the present utility model is arranged on the low-temperature zone of condensing water temperature: after chemical precision processing, before entering #8 low-pressure heater, is conducive to the heat of oil and water of condensation being exchanged by heat exchanger.
2, in piping design, because heat utilization device design of the present utility model is after the precision processing of water of condensation chemistry, scene has enough spaces to install turbo-engine lube, feed water pump driving steam turbine bearing lubrication oil heat utilization device respectively, is convenient to the carrying out of the construction operations such as on-the-spot heat exchanger is installed, the welding of pipeline.
3, the utility model design proposal is simply effective, take full advantage of the existing equipment of lubricating oil system and condensate system, Plant reconstruction plant modernization amount is less, and has effectively reclaimed the heat that originally can run off on the other hand, improves the heat-economy of unit, reduces the standard coal consumption of unit.
4, the utility model obtains maximum value with minimum transformation amount, achieves multiple economic effect, and its long-term gain is much larger than its short-term investment.
5, compared with traditional lubrication oil cooling system, after implementing the utility model, the heat loss of unit reduces, and efficiency improves, and coal consumption reduces, and is conducive to energy-saving and emission-reduction, protection of the environment.After the heat of turbo-engine lube, feed water pump driving steam turbine bearing lubrication oil is fully used, the generating standard coal consumption of unit can reduce about 0.10g/kWh, utilize 5500 hours per year, mark coal 500 yuan/t, loan interest rate is 6.8% calculating, two unit total life cycles (discounting by 20 years) save coal-fired expense about 221.2294 ten thousand yuan, and economic advantages are considerable.
Accompanying drawing explanation
Fig. 1 is existing steam-turbine lubrication oil cooling system figure.
Fig. 2 is existing feed water pump driving steam turbine bearing lubrication oil cooling system figure.
Fig. 3 is lubricant oil heat utilization device system diagram of the present utility model.
In Fig. 3: 1-gland-sealing cooler; 2-condensate pump.
Embodiment
Below in conjunction with example, the utility model will be further described:
As shown in Figure 3, turbo-engine lube heat utilization device of the present utility model, for reuse turbo-engine lube and the feed water pump driving heat with turbo-engine lube return line.Lubricating oil system comprises main frame lubricating oil tank and small turbine lubricating oil tank, and their return line and in-line.
Turbo-engine lube heat utilization device of the present utility model, comprise the main frame oil cooler be arranged on main lubricating oil return pipeline, be arranged on the small turbine oil cooler on small turbine lubricating oil return pipeline, and condensate system, the oil circuit of main frame oil cooler and small turbine oil cooler is serially connected on respective return line respectively, water route (being provided with two small turbine oil coolers and two main frame oil coolers in this example) parallel with one another, their cooling water intake and the outlet of chemical precision processing device after in parallel, the water of condensation that coolant outlet and condenser hotwell export is responsible for and is communicated with.
Water of condensation main line also selects connection No. 8 low-pressure heaters by valve, and water of condensation main line is provided with gland-sealing cooler 1.Condensate system also draws together open type cooling water as cooling source for subsequent use, and open type cooling water is provided with valve on the pipeline of main frame oil cooler and small turbine oil cooler.
Condenser hotwell outlet is provided with condensate pump 2 with the connecting pipeline of chemical processing device; Water of condensation main line selects connection No. 8 low-pressure heaters as required by valve, and is provided with gland-sealing cooler on water of condensation main line, then is connected to the chemical outlet of precision processing device and the cooling water inlet of oil cooler by the road.
In the utility model, the miscellaneous water pipeline communication that the cooling water intake of small turbine oil cooler and main frame oil cooler and chemical precision processing device water of condensation export, coolant outlet is communicated with the outlet conduit of No. 8 low-pressure heaters.The low-temperature receiver for subsequent use of this device is open type cooling water, and its import is communicated with opened water delivery side of pump, and its outlet is communicated with opened water water return pipeline.
In the utility model, water of condensation main line is provided with gland-sealing cooler (can contain drain cooler), and vapour condenser and gland-sealing cooler (drain cooler) are arranged in parallel.Water of condensation main line is provided with No. 8 low-pressure heaters, and vapour condenser and No. 8 low-pressure heaters are arranged in parallel.
working procedure of the present utility model is as follows:
For reclaiming the heat of turbo-engine lube, feed water pump driving steam turbine bearing lubrication oil system, the utility model sets up heat utilization device in turbo-engine lube, feed water pump driving steam turbine bearing lubrication oil system, the water of condensation that the temperature exported by chemical precision processing device by the bearing oil oil return that temperature is higher is lower cools, and the heat of lubricant oil release is by condensate-water polishing.
When using the utility model device, closing the valve on original bearing oil return line in parallel with the utility model, opening the valve on the lubricant oil inlet/outlet pipeline on model utility device.When not using this device, opening and the valve on the opened water cooling water channel of lubricant oil, closing the valve on lubricant oil inlet/outlet pipeline of the present utility model, now can recover the running state of primal system, harmful effect can not be produced to primal system.Certainly, also the lubricant oil low-temperature receiver at opened water place and water of condensation place lubricant oil low-temperature receiver can be used in conjunction with each other.
The utility model is a kind of existing thermodynamic system and equipment of making full use of Thermal Power Station; by the Optimal improvements to system and equipment; the heat energy be originally wasted in system can be effectively utilized; reduce the energy consumption of power plant; strengthen the acting ability of steam turbine, realize the heat recovering device of energy-saving and emission-reduction, protection of the environment.
Claims (4)
1. a turbo-engine lube heat utilization device, comprise and be arranged on main frame oil cooler on main lubricating oil return pipeline and condensate system, it is characterized in that: also comprise the small turbine oil cooler be arranged on small turbine lubricating oil return pipeline, the oil circuit of small turbine oil cooler and main frame oil cooler is serially connected in respective return line respectively, the water route of small turbine oil cooler and main frame oil cooler is parallel with one another, cooling water intake in parallel and the outlet of chemical precision processing device, coolant outlet in parallel is responsible for the water of condensation that condenser hotwell exports and is communicated with, water of condensation main line is provided with gland-sealing cooler, water of condensation is connected to chemical precision processing device outlet port.
2. turbo-engine lube heat utilization device according to claim 1, is characterized in that: described water of condensation main line also selects connection No. 8 low-pressure heaters by valve.
3. turbo-engine lube heat utilization device according to claim 1 or 2, it is characterized in that: described condensate system also draws together open type cooling water as cooling source for subsequent use, and open type cooling water is provided with valve on the pipeline of main frame oil cooler and small turbine oil cooler.
4. turbo-engine lube heat utilization device according to claim 1, is characterized in that: condenser hotwell outlet is provided with condensate pump with the connecting pipeline of chemical processing device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521016082.5U CN205225347U (en) | 2015-12-09 | 2015-12-09 | Turbo -engine lube heat utilizes device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201521016082.5U CN205225347U (en) | 2015-12-09 | 2015-12-09 | Turbo -engine lube heat utilizes device |
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| CN205225347U true CN205225347U (en) | 2016-05-11 |
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| CN201521016082.5U Active CN205225347U (en) | 2015-12-09 | 2015-12-09 | Turbo -engine lube heat utilizes device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022198922A1 (en) * | 2021-03-23 | 2022-09-29 | 西安热工研究院有限公司 | Power plant multi-stage waste heat comprehensive utilizing apparatus and method |
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2015
- 2015-12-09 CN CN201521016082.5U patent/CN205225347U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022198922A1 (en) * | 2021-03-23 | 2022-09-29 | 西安热工研究院有限公司 | Power plant multi-stage waste heat comprehensive utilizing apparatus and method |
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