CN201416462Y - Vacuum steam recovery device for steam turbine - Google Patents
Vacuum steam recovery device for steam turbine Download PDFInfo
- Publication number
- CN201416462Y CN201416462Y CN2009201089233U CN200920108923U CN201416462Y CN 201416462 Y CN201416462 Y CN 201416462Y CN 2009201089233 U CN2009201089233 U CN 2009201089233U CN 200920108923 U CN200920108923 U CN 200920108923U CN 201416462 Y CN201416462 Y CN 201416462Y
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- Prior art keywords
- steam
- exhaust steam
- recycling
- pressure
- steam turbine
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- Expired - Fee Related
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Abstract
The utility model relates to a vacuum steam recovery device for a steam turbine, which comprises a closed-type exhaust steam recovery tank and an efficient jet pump. The efficient jet pump is mountedin a vertical manner; a high-pressure pump is connected at the bottom part of the closed type exhaust steam recovery tank; a jet pipeline is connected at the outlet of the high-pressure pump; a jet outlet of the efficient jet pump is connected with the inlet of the closed-type exhaust steam recovery tank; a jet inlet is connected with the outlet of the jet pipeline; a pumping inlet is connected with an exhaust steam outlet of the steam turbine via a blower; a level gauge and a water level sensor which are used for displaying the position of the liquid in the closed-type exhaust steam recoverytank is arranged on the closed-type exhaust steam recovery tank; and an output signal line of the water level sensor is connected with a control device. The utility model ensures the pressure difference of the steam turbine as well as recycles exhaust steam of the steam turbine, avoids the waste of water resources and heat energy as well as heat pollution; and the steam recovery device can be applied to exhaust steam recycling in various occasions in which steam turbines are arranged.
Description
Technical field
The utility model relates to a kind of vacuum steam recovery device for steam turbine, is mainly used in the various occasions that are provided with steam turbine.
Background technique
In order to carry out work to greatest extent, the end of existing steam turbine is provided with vapour condenser and various forms of cooling tower, so that the exhaust steam of steam turbine end is cooled off, make it become water of condensation, and discharge, to reduce volume significantly, in the terminal negative pressure that forms of steam turbine, to increase substantially steam turbine front and back pressure reduction.The technology of this raising steam turbine pressure reduction is mended the waste great lot of water resources, and the exhaust steam latent heat of steam turbine can not obtain utilizing, and has wasted a large amount of heat energy.
The model utility content
In order to overcome the above-mentioned defective of prior art, the utility model provides a kind of vacuum steam recovery device for steam turbine, and this device is recycled vacuum waste steam reclamation when guaranteeing steam turbine pressure reduction.
The technical solution adopted in the utility model: a kind of vacuum steam recovery device for steam turbine, comprise enclosed exhaust steam recycling can and jet injector with high efficiency, described jet injector with high efficiency adopts vertical mode to install, the bottom of described enclosed exhaust steam recycling can is connected with high-pressure service pump, described high pressure delivery side of pump connects the jet pipeline, the jet exit of described jet injector with high efficiency connects the import of described enclosed exhaust steam recycling can, jet inlet connects the outlet of described jet pipeline, the suction inlet connects the exhaust steam outlet of steam turbine by blower fan, described enclosed exhaust steam recycling can is provided with level meter and the level sensor that is used to show its internal liquid position, and the output signal line of described level sensor connects control gear.
The length of described jet injector with high efficiency generally should be not less than 3 meters.
Described jet injector with high efficiency can be provided with a plurality of suction inlets with different suction forces.
Described have different suction forces suction inlet generally can be arranged on the axial diverse location of described jet injector with high efficiency.
Vapor pressure in the described enclosed exhaust steam recycling can should be greater than the exhaust steam pressure of the described steam turbine after the described blower fan supercharging.
For example, preferably a kind of: the vapor pressure in the described enclosed exhaust steam recycling can is 0.1-0.5MPa, and described exhaust steam in steam turbine pressure is 0.002MPa, and the exhaust steam pressure after the described blower fan supercharging is 0.05-0.15Mpa.
Described high pressure delivery side of pump can also be connected with water of condensation reuse pipeline or described enclosed recycling can also is provided with water of condensation reuse water pump, and described water of condensation recycle-water delivery side of pump is connected with water of condensation reuse pipeline.
The steam (vapor) outlet of described enclosed exhaust steam recycling can is arranged on the top of its tank body usually.
Described enclosed exhaust steam recycling can also is provided with the output pipeline that connects described steam (vapor) outlet, and described output pipeline is provided with modulating valve, so that the high-quality steam that forms in the jar is used for using the vapour occasion.
Described high-pressure service pump and described water of condensation reuse water pump generally can be installed in the bottom of described enclosed recycling can, and the import of each pump is connected in the water of condensation outlet of described enclosed recycling can bottom.
The pipeline that connects each several part is provided with and meets control valve and the pressure/flow detector that control requires, the output line of described pressure/flow detector inserts described control gear, described control wiring adopts programmable controller, and its control signal line connects each control valve and each pump.
The beneficial effects of the utility model: because the utility model has connected supercharging feedway and enclosed exhaust steam recycling can in the exhaust steam outlet of steam turbine, the gas of described enclosed exhaust steam recycling can and the output of described supercharging feedway has pressure difference, pressure in the described enclosed exhaust steam recycling can is higher than the pressure of described supercharging feedway output gas, by the jet injector with high efficiency that connects on the enclosed exhaust steam recycling can jet to the water of condensation of its inside, produce negative pressure in the suction ingress, realized the degree of vacuum of steam turbine end, utilize the suction inlet of described jet injector with high efficiency will be pumped in the described enclosed exhaust steam recycling can by the exhaust steam in steam turbine of described supercharging feedway supercharging, guaranteed that simultaneously the heat energy in the exhaust steam do not suffer a loss, so that carry out the utilization of postorder.Because described vacuum steam recovery device for steam turbine is used for generating or metallurgical more, described jet injector with high efficiency adopts vertical mode to install, and the height fall that self produces can increase jet pressure, for the suction inlet provides bigger suction force.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
Referring to Fig. 1, a kind of vacuum steam recovery device for steam turbine, comprise steam turbine 3, enclosed exhaust steam recycling can 1 and jet injector with high efficiency 2, described jet injector with high efficiency adopts vertical mode to install, the bottom of described enclosed exhaust steam recycling can is connected with high-pressure service pump 8, described high pressure delivery side of pump connects jet pipeline 5, the jet exit of described jet injector with high efficiency connects the import of described enclosed exhaust steam recycling can, jet inlet connects the outlet of described jet pipeline, the suction inlet exports by the exhaust steam that blower fan 4 connects steam turbine, keeps being enough to make the pressure that is converted into liquid water to the small part exhaust steam in the described enclosed exhaust steam recycling can.
Described enclosed exhaust steam recycling can is provided with level meter and the level sensor that is used to show its internal liquid position, and the output signal line of described level sensor connects control gear, to guarantee water level in the enclosed exhaust steam recycling can by the control to various turnover flows.
The length of described jet injector with high efficiency is not less than 3 meters.Height fall by described jet injector with high efficiency self can increase effluxvelocity, jet pressure, and then the suction force at reinforced suction such as mouth place.
Described jet injector with high efficiency is provided with a plurality of suction inlets with different suction forces.So that connect a plurality of different vacuum waste steam reclamation pipelines, often need different suction forces owing to produce the distinct device of vacuum waste steam reclamation, the suction inlet that has different suction forces by setting can satisfy the job requirement of different vacuum equipments.
Jet injector with high efficiency can adopt various forms of Venturi tubes or similar devices, and described suction inlet with different suction forces is arranged on the axial diverse location of described jet injector with high efficiency, utilizes suction forces different on the axial diverse location to produce different degree of vacuum.
In case of necessity, also can adopt the jet injector with high efficiency of a plurality of different degree of vacuum to aspirate the vacuum waste steam reclamation of distinct device respectively and send into described enclosed exhaust steam recycling can, the jet exit pipe of each jet injector with high efficiency is to all connecting described enclosed exhaust steam recycling can.When adopting this kind mode, should consider the jet pressure of each jet injector with high efficiency output, make it with described enclosed exhaust steam recycling can in pressure adapt, guarantee that each jet injector with high efficiency all can send into jet enclosed exhaust steam recycling can smoothly.
The exhaust steam pressure of the described steam turbine of the vapor pressure in the described enclosed exhaust steam recycling can after greater than described blower fan supercharging.
Vapor pressure in the described enclosed exhaust steam recycling can is 0.1-0.5MPa, and described exhaust steam in steam turbine pressure is 0.002MPa, and the exhaust steam pressure after the described blower fan supercharging is 0.05-0.15MPa.Different pressures by distinct device produces pressure difference, for the suction operation of described jet injector with high efficiency provides power.
Described high pressure delivery side of pump also is connected with water of condensation reuse pipeline 6 or described enclosed recycling can also is provided with water of condensation reuse water pump, and described water of condensation recycle-water delivery side of pump is connected with water of condensation reuse pipeline.
Unnecessary water of condensation in the described enclosed exhaust steam recycling can be discharged by described water of condensation reuse pipeline, keep vapour, water budget in the described enclosed exhaust steam recycling can.
May have water of condensation, steam and incoagulable gas simultaneously in the described enclosed exhaust steam recycling can, steam and water of condensation form transient equiliblium under certain pressure and water of condensation discharge amount.
The steam (vapor) outlet of described enclosed exhaust steam recycling can is arranged on the top of its tank body usually.
Described enclosed exhaust steam recycling can also comprises output pipeline 7, and described output pipeline is arranged on the top of its tank body, so that the high-quality steam that forms in the jar is used for the vapour occasion.
The outlet of the water of condensation of described enclosed exhaust steam recycling can is arranged on the bottom of its tank body usually, and described high-pressure service pump connects described water of condensation outlet, and what guarantee thus to export out from described water of condensation all is water of condensation.
For the control that makes things convenient for vacuum steam recovery device for steam turbine vapour, water turnover can also be provided with corresponding regulating valve on each pipeline.
Described enclosed exhaust steam recycling can is provided with level meter and/or the level sensor that is used to show its internal liquid position, and the output signal line of described level sensor connects control gear.Described control gear is according to default program or Control Parameter work, the output of its control signal can connect valve on high-pressure service pump and each pipeline by control wiring, control the liquid level in the described enclosed exhaust steam recycling can, water level in the described enclosed exhaust steam recycling can is maintained in certain scope, reach the transient equiliblium of steam and water of condensation.
Can also be provided with safety valve and outlet valve on the described enclosed exhaust steam recycling can, described safety valve and described outlet valve are connected the top of described enclosed exhaust steam recycling can respectively by pipeline, the gas that can not form water of condensation regularly can be discharged by described outlet valve, in order to avoid take the interior space of tank body too much, described safety valve can be in the tank body internal pressure above releasing pressure automatically after the certain limit.
The high pressure vacuum vapour of the exhaust steam outlet output of described steam turbine enters described supercharging feedway by pipeline, make the supercharging of high pressure vacuum vapour, pressure after the supercharging is generally 0.05-0.15MPa, pressure in the described enclosed exhaust steam recycling can is generally 0.1-0.5MPa, water of condensation in the described enclosed exhaust steam recycling can is exerted pressure through the pressurized gas on its liquid level, inject the jet inlet of described jet injector with high efficiency by described jet pipeline, because the water of condensation of injecting in the jet injector with high efficiency has very high speed, make described pump port place form bigger pressure, the pressure of the high pressure vacuum vapour of force value after greater than the supercharging of described supercharging feedway, by this pressure difference as power, utilize the suction inlet of described jet injector with high efficiency will aspirate into described jet injector with high efficiency through the high pressure vacuum vapour of described supercharging feedway supercharging, liquid-vapor mixture in the pump is injected in the described enclosed exhaust steam recycling can by described jet exit, for replenishing water of condensation and pressurized gas, periodic duty in the jar.
Pressurized gas in the described enclosed exhaust steam recycling can also can utilize by described output pipeline output, can also the water of condensation in the described enclosed exhaust steam recycling can be discharged by described water of condensation reuse pipeline and deliver to watering equipment, water level in the control tank body is kept a jar interior transient equiliblium.
Claims (10)
1, a kind of vacuum steam recovery device for steam turbine, it is characterized in that comprising enclosed exhaust steam recycling can and jet injector with high efficiency, described jet injector with high efficiency adopts vertical mode to install, the bottom of described enclosed exhaust steam recycling can is connected with high-pressure service pump, described high pressure delivery side of pump connects the jet pipeline, the jet exit of described jet injector with high efficiency connects the import of described enclosed exhaust steam recycling can, jet inlet connects the outlet of described jet pipeline, the suction inlet connects the exhaust steam outlet of steam turbine by blower fan, described enclosed exhaust steam recycling can is provided with level meter and the level sensor that is used to show its internal liquid position, and the output signal line of described level sensor connects control gear.
2, vacuum steam recovery device for steam turbine as claimed in claim 1 is characterized in that the length of described jet injector with high efficiency is not less than 3 meters.
3, vacuum steam recovery device for steam turbine as claimed in claim 1 is characterized in that described jet injector with high efficiency is provided with a plurality of suction inlets with different suction forces.
4, vacuum steam recovery device for steam turbine as claimed in claim 3, it is characterized in that described have different suction forces suction inlet be arranged on the axial diverse location of described jet injector with high efficiency.
5,, it is characterized in that the exhaust steam pressure of the described steam turbine after the interior vapor pressure of described enclosed exhaust steam recycling can is greater than described blower fan supercharging as claim 1,2,3 or 4 described vacuum steam recovery device for steam turbine.
6, vacuum steam recovery device for steam turbine as claimed in claim 5, it is characterized in that the vapor pressure in the described enclosed exhaust steam recycling can is 0.1-0.5MPa, described exhaust steam in steam turbine pressure is 0.002MPa, and the exhaust steam pressure after the described blower fan supercharging is 0.05-0.15MPa.
7, vacuum steam recovery device for steam turbine as claimed in claim 1, it is characterized in that described high pressure delivery side of pump also is connected with water of condensation reuse pipeline or described enclosed recycling can also is provided with water of condensation reuse water pump, described water of condensation recycle-water delivery side of pump is connected with water of condensation reuse pipeline.
8, vacuum steam recovery device for steam turbine as claimed in claim 7 is characterized in that described high-pressure service pump and described water of condensation reuse water pump are installed in the bottom of described enclosed recycling can, and the import of each pump is connected in the water of condensation outlet of described enclosed recycling can bottom.
9, vacuum steam recovery device for steam turbine as claimed in claim 8 is characterized in that described enclosed exhaust steam recycling can top is provided with steam (vapor) outlet, and this steam (vapor) outlet connects the steam output pipe road.
10, vacuum steam recovery device for steam turbine as claimed in claim 9, it is characterized in that the pipeline that connects each several part is provided with control valve and the pressure/flow detector that meets the control requirement, the output line of described pressure/flow detector inserts described control gear, described control wiring adopts programmable controller, and its control signal line connects each control valve and each pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201089233U CN201416462Y (en) | 2009-05-31 | 2009-05-31 | Vacuum steam recovery device for steam turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201089233U CN201416462Y (en) | 2009-05-31 | 2009-05-31 | Vacuum steam recovery device for steam turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201416462Y true CN201416462Y (en) | 2010-03-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009201089233U Expired - Fee Related CN201416462Y (en) | 2009-05-31 | 2009-05-31 | Vacuum steam recovery device for steam turbine |
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| CN (1) | CN201416462Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104018900A (en) * | 2014-06-09 | 2014-09-03 | 匡仲平 | Thermoelectric unit water and energy saving device |
| CN105484810A (en) * | 2016-01-11 | 2016-04-13 | 苟仲武 | Waste steam mechanical compressing and reusing device and method |
| CN106014517A (en) * | 2016-07-01 | 2016-10-12 | 翁志远 | Power station steam turbine waste steam compression and condensation system and method thereof |
-
2009
- 2009-05-31 CN CN2009201089233U patent/CN201416462Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104018900A (en) * | 2014-06-09 | 2014-09-03 | 匡仲平 | Thermoelectric unit water and energy saving device |
| CN105484810A (en) * | 2016-01-11 | 2016-04-13 | 苟仲武 | Waste steam mechanical compressing and reusing device and method |
| CN106014517A (en) * | 2016-07-01 | 2016-10-12 | 翁志远 | Power station steam turbine waste steam compression and condensation system and method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20121016 Granted publication date: 20100303 |
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| RINS | Preservation of patent right or utility model and its discharge | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20130321 Granted publication date: 20100303 |
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| RINS | Preservation of patent right or utility model and its discharge | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100303 Termination date: 20140531 |