CN111288430A - Movable waste heat steam power generation device and waste heat steam utilization method - Google Patents
Movable waste heat steam power generation device and waste heat steam utilization method Download PDFInfo
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- CN111288430A CN111288430A CN202010126397.4A CN202010126397A CN111288430A CN 111288430 A CN111288430 A CN 111288430A CN 202010126397 A CN202010126397 A CN 202010126397A CN 111288430 A CN111288430 A CN 111288430A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B33/00—Steam-generation plants, e.g. comprising steam boilers of different types in mutual association
- F22B33/18—Combinations of steam boilers with other apparatus
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K11/00—Plants characterised by the engines being structurally combined with boilers or condensers
- F01K11/02—Plants characterised by the engines being structurally combined with boilers or condensers the engines being turbines
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
- F22D1/00—Feed-water heaters, i.e. economisers or like preheaters
- F22D1/50—Feed-water heaters, i.e. economisers or like preheaters incorporating thermal de-aeration of feed-water
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28B—STEAM OR VAPOUR CONDENSERS
- F28B9/00—Auxiliary systems, arrangements, or devices
- F28B9/08—Auxiliary systems, arrangements, or devices for collecting and removing condensate
Abstract
The invention discloses a mobile waste heat steam power generation device and a waste heat steam utilization method, and belongs to the field of waste heat steam recovery. The device comprises a waste heat steam generating source and carrying equipment, wherein a waste heat steam generating box is mounted on the carrying equipment; a main throttle, a turbo generator set, a condensing unit, a deoxidizing system and a heating unit are arranged in the waste heat steam power generation box; one end of the main throttle valve is arranged in the waste heat steam power generation box body and communicated with an air inlet of the steam turbine generator unit, and the other end of the main throttle valve is arranged outside the box body and communicated with a waste heat steam generation source; the condensing unit is communicated with an air outlet of the turbo generator unit; the deoxygenation system is communicated with the condensation unit and is used for deoxygenating the condensation product; the heating unit is communicated with the oxygen removal system and heats the oxygen removal products. The device provided by the invention is provided with the waste heat steam power generation box through the carrying equipment, all processing units in the power generation box are mutually matched, the waste heat steam can be efficiently utilized for electric energy and water resources, and the device is flexible to use in various places and wide in application range.
Description
Technical Field
The invention relates to the field of waste heat steam recovery, in particular to a mobile waste heat steam power generation device and a waste heat steam utilization method.
Background
The waste heat power generation technology is a technology for converting redundant heat energy into electric energy in the production process, and particularly, the waste heat power generation technology is a technology for generating steam by using heat or combustible substances in working media such as waste gas and leaves as heat sources to reduce heat pollution to the environment, and has obvious energy-saving effect and good economic benefit and social benefit.
The existing steam power generation facilities utilizing waste heat have large occupied area, complex structure and large cooling water consumption, and waste heat steam generated in the operation of industrial or civil production and living devices in the field or special places and waste heat steam generated in the operation of some movable facilities, but because of site limitation or other condition limitations, the conditions of conventional steam power stations utilizing waste heat are not established, such as the limitations of continuous movement, grid connection, a large amount of cooling water and the like, a large amount of steam waste heat can only be diffused or cooled by a large amount of cooling water, and the energy waste and the environmental influence are caused.
Through retrieval, Chinese patent publication No. CN 103291390A, published 2013, 9.11 discloses a heating furnace flue gas and steam waste heat recovery power generation system and a power generation method, the system comprises a flue gas waste heat boiler system, a heating furnace gas-phone cooling system, a steam turbine generator set system, a condensed water return water supply system and a combined control system, the flue gas waste heat boiler system comprises an economizer, an evaporator and a superheater, and the feed water of the vaporization cooling system comes from the heating furnace economizer. Although this application provides a system that can retrieve waste heat steam and generate electricity, the required place of this system construction is big, and can't remove after the construction, is difficult to satisfy the demand of multiple occasion, and application scope is little.
Disclosure of Invention
1. Technical problem to be solved by the invention
Aiming at the problem that the application range of a power generation facility utilizing waste heat steam is small in the prior art, the invention provides the movable waste heat steam power generation device and the waste heat steam utilization method.
2. Technical scheme
In order to achieve the purpose, the technical scheme provided by the invention is as follows:
a mobile waste heat steam power generation device comprises a waste heat steam generation source and carrying equipment, wherein a waste heat steam power generation box is carried on the carrying equipment; a main throttle, a turbo generator set, a condensing unit, a deoxidizing system and a heating unit are arranged in the waste heat steam power generation box; one end of the main throttle valve is arranged in the waste heat steam power generation box body and communicated with an air inlet of the steam turbine generator unit, and the other end of the main throttle valve is arranged outside the box body and communicated with a waste heat steam generation source; the condensation unit is communicated with an air outlet of the steam turbine generator unit and is used for condensing steam exhausted by the steam turbine generator unit; the deoxygenation system is communicated with the condensation unit and is used for deoxygenating the condensation product; the heating unit is communicated with the oxygen removal system and is used for heating the oxygen removal product.
Carrying equipment comprises but is not limited to automobiles or other equipment which can be used as power to carry the waste heat steam power generation box for movement; the waste heat steam generating source comprises but is not limited to a boiler and other facilities capable of generating waste heat steam, a main throttle valve is arranged at a steam turbine air inlet of a steam turbine generator unit, one end of the main throttle valve extends out of a waste heat steam power generation box, the waste heat steam generated by the waste heat steam generating source is injected into a steam turbine of the steam turbine generator unit through the main throttle valve, the waste heat steam expands and works in the steam turbine to generate kinetic energy to enable the steam turbine generator to generate power, electric energy generated by the steam turbine generator unit can be transmitted to places such as the waste heat steam generating source for continuous utilization, waste steam after the work of the steam turbine generator unit is discharged into a condensing unit, the waste steam is condensed into condensed water in the condensing unit, the condensed water is sent into a deoxygenating system under the action of a condensed water pump, oxygen and other harmful gases dissolved in the condensed water are removed under the, the condensed water after being deoxidized by the deoxidizing system is heated to a proper temperature by the heating unit and then is sent to places such as a waste heat steam generating source for continuous utilization.
Furthermore, the condensing unit comprises a condenser and a circulating water pump, an inlet of the condenser is communicated with an air outlet of the turbo generator set, and an outlet of the condenser is communicated with the oxygen removal system; and the circulating water pump is communicated with the condenser to enable water circulation to be generated in the condenser.
The circulating water pump makes the condenser produce continuous circulating water to strengthen the condensing effect of the condenser on the exhaust gas discharged by the turbo generator set 2.
Furthermore, the condenser is a plate type air-cooling condenser.
Plate-type air cooling condenser compares in other kinds of condenser water conservation effect better, and its heat transfer efficiency is high, and corrosion resistance is good, and compact structure can not consume too much space but can guarantee the condensation effect, chooses for use under the operating mode condition that is particularly useful for this device
Further, the heating unit comprises a steam heater, the steam heater is communicated with the oxygen removal system and is connected with the waste heat steam generation source through a pipeline, and the oxygen removal product is heated by using waste heat steam.
It is connected waste heat steam generating source and heating element to be equipped with the pipeline, be called steam heater, the steam temperature that waste heat steam generating source produced can be used for heating, heat the condensate water for the heat source through waste heat steam, can further the energy can be saved, effectively reach the make full use of to waste heat steam and reduce the consumption to the extra energy, and simultaneously, because the heating source of heating element is the waste heat steam heat effect that utilizes waste heat steam generating source, consequently, can practice thrift a large amount of spaces in the box, need not additionally to be equipped with firing equipment in the box, guarantee the compactness of waste heat steam power generation box structure in this device, make it change in and carried on the removal.
Further, the heating unit further includes an electric heater in communication with the steam heater.
Set up electric heater, the condensate water behind the deoxidization system deoxidization flows through electric heater behind the steam heater earlier, if the temperature degree of water that flows through steam heater does not reach the temperature requirement of outside transport, then start electric heater and heat the condensate water, ensure that the temperature is up to standard, because the condensate water passes through steam heater's heating in advance, the electric heater of consequently configuration need not too big power and easily makes the condensate water reach the temperature requirement promptly, consequently, the specification size of the electric heater of installing need not too big, can not increase waste heat steam power generation box's occupation volume.
Further, the oxygen removing system is communicated with the steam heater through the water mixer; and a one-way pipeline I from the water mixer to the steam heater and a one-way pipeline II from the steam heater to the water mixer are arranged between the water mixer and the steam heater.
Steam heater is when adopting steam to heat the condensate water, and waste heat steam is also condensing by cooling, and this scheme is through setting up from steam heater to the one-way pipeline two of water mixer, and the condensate water after condensing by cooling with waste heat steam is inputed to water mixer, and water mixer's effect is with the condensate water after the deoxidization system deoxidization and the condensate water intensive mixing from steam heater input, makes the even condensate water of temperature input to the heating element in, ensures the heating effect.
Further, still include and penetrate vapour ejector, it is connected with the condenser.
The steam jet air ejector is of an existing structure and comprises a working nozzle, a mixing chamber and a diffuser pipe, working steam which operates the steam jet air ejector enters the working nozzle, and a large-amplitude pressure drop occurs after the working steam enters the mixing chamber, so that a mixture of redundant steam and air in a condenser which is connected in advance is sucked into the mixing chamber, the condenser is kept to operate under the condition of high vacuum degree, the condensation effect is ensured, and the steam in the mixing chamber is subjected to pressure rise after passing through the diffuser pipe and then is discharged.
Further, a nozzle of the steam jet ejector is communicated with the waste heat steam generating source.
The working nozzle of the steam jet air ejector is communicated with the waste heat steam generation source, the waste heat steam is used as the working steam of the steam jet air ejector, the waste heat steam is further utilized, extra energy consumption is saved, the steam jet air ejector is enabled not to be configured with extra working steam source equipment, the occupation of the inner space of the box body is saved, and the flexibility and the mobility of the box body are guaranteed.
Furthermore, a bypass pipeline is arranged at an outlet of a deoxygenation product of the deoxygenation system and is connected with the steam jet air extractor; and the outlet of the steam jet air extractor is communicated with the water mixer.
The condensate water after the deoxidization of deoxidization system flows to penetrating vapour aspirator department through a bypass pipeline, can carry out the condensation to the steam in the penetrating vapour aspirator, make its final ability discharge condensate water, simultaneously, the condensate water also can be heated after penetrating the vapour aspirator, and then can be heated in advance when the log raft of penetrating vapour aspirator department is to the water mixer, make full use of the temperature characteristic practiced thrift the energy consumption of this device, make this device more energy-conserving and higher to waste heat steam's utilization ratio.
A waste heat steam utilization method comprises the following steps:
firstly, power generation: waste heat steam generated by the waste heat steam generating source is introduced into a steam turbine generator unit through a main throttle valve, and the steam turbine generator unit generates electricity through the introduced waste heat steam and transmits electric energy;
secondly, condensing the steam:
a. waste steam discharged by the steam turbine generator unit is introduced into the condensation unit, condensed water is introduced into the deoxygenation system after being condensed into condensed water, and the condensed water deoxygenated by the deoxygenation system is introduced into the water mixer;
b. waste heat steam generated by the waste heat steam generating source is introduced into a working nozzle of the steam jet air extractor to be used as working steam of the steam jet air extractor, and the steam jet air extractor extracts redundant steam-air mixture in the condensing unit;
c. condensed water after deoxygenation of the deoxygenation system is conveyed into the steam ejector through a bypass branch, steam in the steam ejector is condensed, and condensation products in the steam ejector and the condensed water input by the deoxygenation system are introduced into the water mixer;
thirdly, heating:
a. the water mixer uniformly mixes the condensed water and inputs the mixed water into the steam heater;
b. steam generated by the waste heat steam generating source is introduced into the steam heater to serve as a heat source of the steam heater, the steam heater heats input condensed water, and a product obtained after the waste heat steam at the steam heater is cooled and condensed is input into the water mixer;
c. and (3) introducing the condensed water heated by the steam heater into the electric heater, directly conveying the condensed water if the temperature reaches the output standard, and conveying the condensed water after the temperature is heated to reach the standard by the electric heater if the temperature does not reach the output standard.
3. Advantageous effects
Compared with the prior art, the technical scheme provided by the invention has the following beneficial effects:
(1) according to the mobile waste heat steam power generation device, the carrying equipment is used for carrying the waste heat steam power generation box which can convert waste heat steam into electric energy and recycle water energy, when a waste heat steam generation source is needed, the waste heat steam can be carried to a needed position at any time and then recycled, and when the waste heat steam generation source is not needed, the carrying equipment can be used for carrying away at any time, so that the flexibility of the device is greatly improved, and the application range of the device is wide;
(2) according to the mobile waste heat steam power generation device, the condensing unit generates circulating water flow in the condenser through the circulating water pump to enhance the condensing effect, the overall structure does not occupy excessive volume, and the mobile waste heat steam power generation device is suitable for being used in the limited space of the waste heat steam power generation box;
(3) compared with other types of condensers, the plate type air-cooled condenser has better water-saving effect, high heat transfer efficiency, good corrosion resistance and compact structure, does not consume too much space, can ensure the condensation effect, and is particularly suitable for being selected under the working condition of the device;
(4) according to the mobile waste heat steam power generation device, due to the structural arrangement of the condensation unit, a lot of installation space is saved, the volume structure of the waste heat steam power generation box is reduced, and the carrying and transportation are more convenient;
(5) according to the mobile waste heat steam power generation device, the heater which utilizes waste heat steam of the waste heat steam generation source to heat is arranged in the heating unit, the waste heat steam is further utilized, heating energy consumption is saved, the mobile waste heat steam power generation device is more environment-friendly and energy-saving, and the arrangement of heating equipment is omitted due to the steam heater, so that the structure of the waste heat steam power generation box is further lightened, and the mobile waste heat steam power generation device can be carried and has stronger mobility;
(6) the mobile waste heat steam power generation device is provided with the electric heater, so that the temperature of water flowing out of the heating unit reaches the standard, and as the condensed water is heated by the steam heater in advance, the configured electric heater does not need overlarge power, namely, the condensed water is easy to meet the temperature requirement, so that the specification and the size of the installed electric heater do not need to be overlarge, and the occupied volume of a waste heat steam power generation box is not increased;
(7) the mobile waste heat steam power generation device is provided with the water mixer, on one hand, water after waste heat steam in the steam heater is cooled and condensed is collected, on the other hand, condensed water after the oxygen is removed by the oxygen removal system is fully mixed with the condensed water input from the steam heater, so that the condensed water with uniform temperature is input into the heating unit, and the heating effect is ensured;
(8) according to the mobile waste heat steam power generation device, the working nozzle of the steam jet air ejector is communicated with the waste heat steam generation source, the waste heat steam is used as the working steam of the steam jet air ejector, the waste heat steam is further utilized, the extra energy consumption is saved, the steam jet air ejector does not need to be provided with extra working steam source equipment, the occupation of the inner space of the box body is saved, and the flexible mobility of the box body is ensured;
(9) according to the mobile waste heat steam power generation device, condensed water after deoxygenation of the deoxygenation system flows to the steam jet air extractor through the bypass pipeline, steam in the steam jet air extractor can be condensed, so that the condensed water can be finally discharged, meanwhile, the condensed water can be heated after passing through the steam jet air extractor, and further the water at the steam jet air extractor can be preheated when being discharged to the water mixer, so that the energy consumption of the device is saved by fully utilizing the temperature characteristic, the device is more energy-saving, and the utilization rate of the waste heat steam is higher;
(10) the waste heat steam recovery method provided by the invention has the advantages that in the process of recovering and recycling all waste heat steam, the closed cycle of the waste heat steam is kept in the whole process, the waste heat steam is utilized in the closed environment of the waste heat steam power generation box, then electric energy and water energy are output, condensed water and the like are not discharged to the external environment in the whole process, when the method is applied to temporary hospital places, the pollution of viruses and the like can be ensured not to be discharged to the external environment through the waste heat steam, and the important protection effect is realized on the control of virus propagation in special periods.
Drawings
FIG. 1 is a schematic diagram of a mobile cogeneration power plant of the present invention;
FIG. 2 is a schematic structural view of a waste heat steam power generation box of the present invention;
FIG. 3 is a schematic diagram showing the connection relationship of the unit parts of the waste heat steam power generation box.
In the figure:
1. a main valve; 2. a turbo generator unit; 3. a condensing unit; 30. a condenser; 31. a water circulating pump; 32. a condensate pump; 4. an oxygen scavenging system; 5. a heating unit; 50. a steam heater; 500. a first steam heater; 501. a second steam heater; 51. an electric heater; 6. a water mixer; 60. a feed pump; 7. a steam jet air extractor; 8. a waste heat steam generating source; 1000. a waste heat steam power generation box; 2000. a carrying device.
Detailed Description
For a further understanding of the invention, reference should be made to the following detailed description taken in conjunction with the accompanying drawings.
Example 1
As shown in fig. 1 and 2, the mobile waste heat steam power generation device of the present embodiment includes a waste heat steam generation source 8, and further includes a carrying device 2000 on which a waste heat steam power generation box 1000 is mounted; a main throttle 1, a turbo generator set 2, a condensing unit 3, a deoxygenation system 4 and a heating unit 5 are arranged in the waste heat steam power generation box 1000; one end of the main throttle valve 1 is arranged in the box body of the waste heat steam power generation box 1000 and is communicated with an air inlet of the turbo generator set 2, and the other end of the main throttle valve is arranged outside the box body and is communicated with the waste heat steam generation source 8; the condensing unit 3 is communicated with an air outlet of the turbo generator unit 2 and condenses the steam exhausted by the turbo generator unit 2; the deoxygenation system 4 is communicated with the condensation unit 3 and is used for deoxygenating the condensation product; the heating unit 5 is communicated with the oxygen removal system 4 and heats the oxygen removal products.
The existing waste heat steam power generation facilities occupy large area, and are difficult to move once being built, so that the application range of the existing waste heat steam power generation facilities is greatly limited, and for some movable waste heat steam generation sources 8 or waste heat steam generation sources 8 which do not operate for a long time, the waste heat steam power generation facilities are large in investment and difficult to use for a long time and cannot be moved at any time, so that the waste heat steam can only be diffused under many conditions, resources are wasted, and the environment is influenced.
To this, this embodiment designs a portable waste heat steam power generation facility, through carrying equipment 2000 carry on can be with waste heat steam conversion electric energy and recycle hydroenergy's waste heat steam power generation case 2000, when waste heat steam generating source 8 needs, can carry at any time and carry out waste heat steam's recycle behind the required position, can carry away at any time through carrying equipment 2000 when not needing to use, has greatly improved the flexibility of this device, makes its application scope very wide.
In this embodiment, the carrying device 2000 includes, but is not limited to, an automobile or other device capable of moving as a power to carry the waste heat steam power generation box 1000; the waste heat steam generating source 8 comprises but is not limited to a boiler and other facilities capable of generating waste heat steam, the main throttle valve 1 is installed at a steam turbine air inlet of the turbo generator set 2, one end of the main throttle valve extends out of the waste heat steam generating box 1000, the waste heat steam generated by the waste heat steam generating source 8 is injected into a steam turbine of the turbo generator set 2 through the main throttle valve 1, the waste heat steam expands in the steam turbine to work so as to generate kinetic energy to enable the turbo generator to generate electricity, the electric energy generated by the turbo generator set 2 can be transmitted to the waste heat steam generating source 8 and other places to be continuously utilized, the waste steam after the work of the turbo generator set 2 is discharged into the condensing unit 3, is condensed into condensed water in the condensing unit 3, then is sent into the deoxygenation system 4 under the action of the condensed water pump 32, and oxygen and other harmful gases dissolved in the condensed water are, the subsequent treatment unit or equipment is prevented from being corroded and damaged, and the condensed water after being deoxidized by the deoxidization system 4 is heated to a proper temperature by the heating unit 5 and then is sent to the places such as the waste heat steam generating source 8 for continuous utilization.
Taking a boiler room as an example, the waste heat steam generation source 8 is a boiler room, the waste heat steam power generation box 1000 is carried to a proper position near the boiler room through an automobile, steam generated by the boiler room is introduced into the turbo generator unit 2 through the main throttle valve 1, the turbo generator unit 2 generates power by using the steam, generated electric energy is input into the boiler room as energy, waste steam used by the turbo generator unit 2 is discharged into the condensing unit 3 to be condensed into condensed water, harmful gas such as oxygen in the condensed water is removed through the oxygen removing system 4, then the condensed water is introduced into the heating unit 5 to be heated to a proper temperature and then is sent back into the boiler room, so that the waste heat gas removed from the boiler room is fully utilized, and when the boiler room stops production or the waste heat steam is not required to be recovered, the waste heat steam power generation box 1000 can be transported away.
Example 2
The mobile waste heat steam power generation device of the embodiment is further improved on the basis of embodiment 1, as shown in fig. 3, the condensing unit 3 includes a condenser 30 and a circulating water pump 31, an inlet of the condenser 30 is communicated with an air outlet of the turbo generator set 2, and an outlet of the condenser 30 is communicated with the oxygen removal system 4; the circulating water pump 31 is communicated with the condenser 30, so that water circulation is generated in the condenser 30.
Make continuous circulating water in the condenser 30 through circulating water pump 31 with the condensation effect that the condenser 30 got rid of waste gas to turbo generator set 2, in limited box space, can strengthen the condensation effect when not excessively increasing condensing unit occupation volume through this structure.
Example 3
The mobile waste heat steam power generation device of the present embodiment is further improved on the basis of embodiment 2, and as shown in fig. 3, the condenser 30 is a plate-type air-cooled condenser.
Plate-type air cooling condenser compares in other kinds of condensers water conservation effect better, and its heat transfer efficiency is high, and corrosion resistance is good, and compact structure can not consume too much space but can guarantee the condensation effect, selects for use under the operating mode condition that is particularly useful for this device.
Example 4
The mobile waste heat steam power generation device of the embodiment is further improved on the basis of the embodiment 3, as shown in fig. 3, the heating unit 5 includes a steam heater 50, which is communicated with the oxygen removal system 4 and is connected with the waste heat steam generation source 8 through a pipeline, and the oxygen removal product is heated by using waste heat steam.
Be equipped with the pipeline in this embodiment and be connected waste heat steam generation source 8 and heating element 5, be called steam heater 50, the steam temperature that waste heat steam generation source 8 produced can be used for heating, heat the condensate water for the heat source through waste heat steam, can further the energy can be saved, effectively reach the make full use of and reduce the consumption to the extra energy to waste heat steam, and simultaneously, because the heating source of heating element 5 is the waste heat steam heat effect that utilizes waste heat steam generation source 8, therefore, can practice thrift a large amount of spaces in the box, need not additionally to be equipped with firing equipment in the box, guarantee the compactness of waste heat steam power generation box 1000 structure in this device, it is changeed in being carried on and removes to make it.
In this embodiment, the steam heater 50 is provided with two stages, which are a first steam heater 500 and a second steam heater 501 respectively, and the two are connected in sequence, so that the condensed water after the deoxygenation of the deoxygenation system 4 can sequentially pass through the first steam heater 500 and the second steam heater 501 for secondary heating, thereby ensuring that the condensed water can be heated to a proper temperature.
The waste heat steam power generation device of this embodiment is equipped with the heater that utilizes the waste heat steam of waste heat steam generating source 8 to carry out the heating in heating unit 5, further utilizes waste heat steam, and has practiced thrift the heating power consumption, environmental protection and energy saving more.
Example 5
The mobile waste heat steam power generation device of the present embodiment is further improved on the basis of embodiment 4, as shown in fig. 3, the heating unit 5 further includes an electric heater 51, which is communicated with the steam heater 50.
In this embodiment, the electric heater 51 is provided, the condensed water after the oxygen removal of the oxygen removal system 4 passes through the electric heater 51 after passing through the steam heater 51, if the temperature of the water passing through the steam heater 50 does not reach the temperature requirement of the outward delivery, the electric heater 51 is started to heat the condensed water, the temperature is ensured to reach the standard, because the condensed water passes through the heating of the steam heater 50 in advance, the configured electric heater 51 does not need too much power, i.e., the condensed water is easy to reach the temperature requirement, and therefore, the specification size of the installed electric heater 51 does not need to be too large, and the occupied volume of the waste heat steam power generation box 1000 is not increased.
The waste heat steam power generation device of the embodiment is applied to a boiler room, the temperature of condensed water transmitted to the boiler room through the heating unit 5 must reach a certain requirement, and the normal work of the boiler room can be influenced if the temperature is insufficient, so that the temperature can be ensured to reach the standard by arranging the electric heater 51.
Example 6
The mobile waste heat steam power generation device of the embodiment is further improved on the basis of embodiments 4 and 5, and as shown in fig. 3, the mobile waste heat steam power generation device further includes a water mixer 6, and the oxygen removal system 4 is communicated with the steam heater 50 through the water mixer 6; a one-way pipeline I from the water mixer 6 to the steam heater 50 and a one-way pipeline II from the steam heater 50 to the water mixer 6 are arranged between the water mixer 6 and the steam heater 50.
Example 7
The mobile waste heat steam power generation device of the present embodiment is further improved on the basis of embodiment 6, and as shown in fig. 3, further includes a steam jet ejector 7 connected to the condenser 30.
The steam jet air ejector 7 is of an existing structure and comprises a working nozzle, a mixing chamber and a diffuser pipe, working steam which operates in the steam jet air ejector enters the mixing chamber from the working nozzle, and a large-amplitude pressure drop occurs after the working steam enters the mixing chamber, so that a mixture of redundant steam and air in a condenser 30 which is connected in advance is sucked into the mixing chamber, the condenser 30 is kept to operate under the condition of high vacuum degree, the condensation effect is ensured, and the steam in the mixing chamber is subjected to pressure rise after passing through the diffuser pipe and then is discharged.
Example 8
The mobile waste heat steam power generation device of the present embodiment is further improved on the basis of embodiment 7, and as shown in fig. 3, a nozzle of the steam jet ejector 7 is communicated with the waste heat steam generation source 8.
The working nozzle of the steam jet air ejector 7 in the embodiment is communicated with the waste heat steam generation source 8, the waste heat steam is used as the working steam, the waste heat steam is further utilized, extra energy consumption is saved, extra working steam source equipment does not need to be configured for the steam jet air ejector 7, the occupation of the inner space of the box body is saved, and the flexibility and the mobility of the box body are guaranteed.
Example 9
The mobile waste heat steam power generation device of the embodiment is further improved on the basis of the embodiment 8, as shown in fig. 3, a bypass pipeline is arranged at an oxygen removal product outlet of the oxygen removal system 4 and connected with the steam jet air ejector 7; the outlet of the steam jet ejector 7 is communicated with the water mixer 6.
The condensate water after the 4 deoxidations of deoxidization system flows to 7 departments of penetrating vapour air extractor through a bypass pipeline, can condense the steam in 7 of penetrating vapour air extractor, make its final ability discharge condensate water, and simultaneously, the condensate water also can be heated after 7 of penetrating vapour air extractor, and then can be heated in advance when the log raft of 7 departments of penetrating vapour air extractor is to muddy hydrophone 6, make full use of the temperature characteristic and practiced thrift the energy consumption of this device, make this device more energy-conserving and higher to waste heat steam's utilization ratio.
The condensed water after the deoxidization of the deoxidization system 4 is adopted to cool the steam jet air extractor 7, so that the corrosion damage of the condensed water to the steam jet air extractor 7 can be reduced, and the service life of the steam jet air extractor is prolonged.
Example 10
The portable waste heat steam power generation facility of this embodiment, be applied to interim hospital's place, when the interim hospital need be built to the proruption epidemic situation, because the place is nervous, it is enough to guarantee hospital site area as far as possible to need, and the time limit for a project requires for a project to be short, need accomplish in the short time and build, current waste heat steam power generation facility construction demand area is big, and the structure is complicated to build the trouble, obviously use when unsuitable this kind of emergency, and when directly discharging the waste heat steam that interim hospital's place produced, probably cause environmental pollution again, the virus propagates the scheduling problem, can solve above-mentioned problem through the portable waste heat steam power generation facility of this application.
As shown in fig. 2, in the mobile waste heat steam power generation device of this embodiment, the arrangement of each unit in the waste heat steam power generation box 1000 effectively reduces the volume and weight of the whole box, so that the carrying equipment 2000 can transport the box more easily, and in the box, the plate-type water-cooled condenser has a compact structure and occupies a small volume, and is matched with the circulating water pump to reduce the volume of the condensation unit 3 while ensuring the condensation effect; working steam of the steam jet air ejector 7 is supplied by the waste heat steam generating source 8, condensate is supplied by the condensate water discharged by the deoxidizing system 4, excessive volume occupied by the steam jet air ejector 7 is avoided, and meanwhile, the condensate water supplied by the deoxidizing system 4 is preheated by the steam jet air ejector 7 and then discharged to the water mixer 6, so that the occupied volume of the preheating device is saved; the main heat source in the heating unit 5 is provided by the waste heat steam generating source 8, so that the volume occupation is further reduced; this application is used in a flexible way the temperature characteristic at each unit, position to carry out the structure and sets up the selection, has practiced thrift the volume that sets up of many redundant parts, has ensured light weight, the flexibility of box, makes its mobility stronger, is changeed and is carried equipment 2000 transportation, when interim hospital needs, can in time transport to suitable position and use, and this device area itself is little, can not influence interim hospital's demand area.
Furthermore, when the temporary hospital is used as the waste heat steam generating source 8, most of the generated waste heat steam enters the turbo generator set 2 through the main throttle 1 to generate power, the generated electric energy is input into the temporary hospital to relieve the power pressure of the temporary hospital, the waste steam generated by the turbo generator set 2 passes through the condensing unit 3, the deoxidizing system 4 and the heating unit 5 to generate condensed water with proper temperature and is transmitted into the temporary hospital to relieve the water supply pressure of the temporary hospital, the rest of the waste heat steam is respectively led into the steam ejector 7 to work and is led into the steam heater 50 to serve as a heat source, the discharge of the steam ejector 7 is input into the water mixer 6, the condensed waste heat steam at the steam heater 50 is also input into the water mixer 6 and is uniformly mixed with the condensed water output by the deoxidizing system 4 and then is input into the heating unit 5, and the device recycles all the waste heat steam, the closed cycle of the waste heat steam is kept in the whole process, the waste heat steam power generation box 1000 is utilized in the closed environment, electric energy and water energy are output, condensed water and the like are not discharged to the external environment in the whole process, it is ensured that the pollution caused by viruses and the like is not discharged to the external environment through the waste heat steam, and an important protection effect is achieved on the control of the epidemic situation in the special period.
Example 11
The method for utilizing the mobile waste heat steam comprises the following steps:
firstly, power generation: waste heat steam generated by the waste heat steam generating source 8 is introduced into the turbo generator unit 2 through the main throttle 1, and the turbo generator unit 2 generates electricity through the introduced waste heat steam to transmit electric energy;
secondly, condensing the steam:
a. waste steam discharged by the steam turbine generator unit 2 is introduced into a condensing unit 3, condensed into condensed water and then introduced into a deoxygenation system 4, and the condensed water deoxygenated by the deoxygenation system 4 is introduced into a water mixer 6;
b. waste heat steam generated by the waste heat steam generating source 8 is introduced into a working nozzle of the steam jet air extractor 7 to be used as working steam of the steam jet air extractor 7, and the steam jet air extractor 7 extracts redundant steam-air mixture in the condensing unit 3;
c. condensed water after deoxygenation of the deoxygenation system 4 is conveyed into the steam ejector 7 through a bypass branch, steam in the steam ejector 7 is condensed, condensation products in the steam ejector 7 and the condensed water input by the deoxygenation system 4 are introduced into the water mixer 6;
thirdly, heating:
a. the water mixer 6 uniformly mixes the condensed water and inputs the mixed water into the steam heater 50;
b. steam generated by the waste heat steam generating source 8 is introduced into the steam heater 50 to serve as a heat source of the steam heater 50, the steam heater 50 heats input condensed water, and a product of the waste heat steam at the steam heater 50 after being cooled and condensed is input into the water mixer 6;
c. the condensed water heated by the steam heater 50 is introduced into the electric heater 51, and if the temperature reaches the output standard, the condensed water is directly conveyed, and if the temperature does not reach the output standard, the condensed water is heated by the electric heater 51 until the temperature reaches the standard and then conveyed.
The movable waste heat steam utilization method of the embodiment keeps closed cycle of waste heat steam in the whole course of the waste heat steam recycling process, the waste heat steam can be utilized in the closed environment of the waste heat steam power generation box 1000, then electric energy and water energy are output, condensed water and the like are not discharged to the external environment in the whole process, environmental pollution is reduced, the waste heat steam is respectively utilized for power generation, the steam jet air extractor 7 works, the steam heater 50 heats, the condensed water generated after utilization is finally discharged to the water mixer 6 and is output after being heated to reach the standard, and the utilization rate of the waste heat steam is greatly improved.
The present invention and its embodiments have been described above schematically, without limitation, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching, without departing from the spirit of the invention, the person skilled in the art shall not inventively design the similar structural modes and embodiments to the technical solution, but shall fall within the scope of the invention.
Claims (10)
1. A mobile waste heat steam power generation device comprises a waste heat steam generating source (8), and is characterized in that: the waste heat steam power generation system further comprises carrying equipment (2000) which is provided with a waste heat steam power generation box (1000); a main throttle (1), a turbo generator set (2), a condensing unit (3), a deoxygenation system (4) and a heating unit (5) are arranged in the waste heat steam power generation box (1000); one end of the main throttle valve (1) is arranged in the waste heat steam power generation box (1000) and communicated with an air inlet of the turbo generator set (2), and the other end of the main throttle valve is arranged outside the box and communicated with a waste heat steam generation source (8); the condensation unit (3) is communicated with an air outlet of the turbo generator unit (2) and condenses the steam exhausted by the turbo generator unit (2); the deoxygenation system (4) is communicated with the condensation unit (3) and is used for deoxygenating the condensation product; the heating unit (5) is communicated with the oxygen removal system (4) and is used for heating the oxygen removal product.
2. The mobile waste heat steam power plant of claim 1, characterized in that: the condensing unit (3) comprises a condenser (30) and a circulating water pump (31), an inlet of the condenser (30) is communicated with an air outlet of the turbo generator unit (2), and an outlet of the condenser (30) is communicated with the oxygen removal system (4); the circulating water pump (31) is communicated with the condenser (30) to enable the condenser (30) to generate water circulation.
3. The mobile waste heat steam power plant of claim 2, characterized in that: the condenser (30) is a plate-type air-cooled condenser.
4. The mobile cogeneration power plant of claim 3, wherein said mobile cogeneration system comprises: heating unit (5) include steam heater (50), its with deoxidization system (4) intercommunication, and through the pipeline with waste heat steam generation source (8) are connected, utilize waste heat steam to the heating of deoxidization result.
5. The mobile cogeneration power plant of claim 4, wherein said mobile cogeneration generator comprises: the heating unit (5) further comprises an electric heater (51) in communication with the steam heater (50).
6. The mobile waste heat steam power plant of claim 4 or 5, wherein: the oxygen removing system (4) is communicated with the steam heater (50) through the water mixer (6); a one-way pipeline I from the water mixer (6) to the steam heater (50) and a one-way pipeline II from the steam heater (50) to the water mixer (6) are arranged between the water mixer (6) and the steam heater (50).
7. The mobile cogeneration power plant of claim 6, wherein: the steam jet and air exhaust device (7) is connected with the condenser (30).
8. The mobile cogeneration power plant of claim 7, wherein said mobile cogeneration system comprises: and a nozzle of the steam jet ejector (7) is communicated with the waste heat steam generating source (8).
9. The mobile cogeneration power plant of claim 8, wherein: a bypass pipeline is arranged at an oxygen removal product outlet of the oxygen removal system (4) and is connected with the steam jet air ejector (7); the outlet of the steam jet air extractor (7) is communicated with the water mixer (6).
10. The method for utilizing the waste heat steam is characterized by comprising the following steps of:
firstly, power generation: waste heat steam generated by the waste heat steam generating source (8) is introduced into the turbo generator unit (2) through the main throttle valve (1), and the turbo generator unit (2) generates electricity through the introduced waste heat steam and transmits electric energy;
secondly, condensing the steam:
a. waste steam discharged by the steam turbine generator unit (2) is introduced into the condensing unit (3), condensed into condensed water and then introduced into the deoxygenation system (4), and the condensed water deoxygenated by the deoxygenation system (4) is introduced into the water mixer (6);
b. waste heat steam generated by the waste heat steam generating source (8) is introduced into a working nozzle of the steam jet air extractor (7) and is used as working steam of the steam jet air extractor (7), and the steam jet air extractor (7) extracts redundant steam-air mixture in the condensing unit (3);
c. condensed water after deoxygenation of the deoxygenation system (4) is transmitted into the steam ejector (7) through a bypass branch, steam in the steam ejector (7) is condensed, and condensation products in the steam ejector (7) and the condensed water input by the deoxygenation system (4) are introduced into the water mixer (6);
thirdly, heating:
a. the water mixer (6) uniformly mixes the condensed water therein and inputs the mixed water into the steam heater (50);
b. steam generated by the waste heat steam generating source (8) is introduced into the steam heater (50) and serves as a heat source of the steam heater (50), the steam heater (50) heats input condensed water, and a product obtained after the waste heat steam at the steam heater (50) is cooled and condensed is input into the water mixer (6);
c. the condensed water heated by the steam heater (50) is introduced into the electric heater (51), and if the temperature reaches the output standard, the condensed water is directly conveyed, and if the temperature does not reach the output standard, the condensed water is heated by the electric heater (51) until the temperature reaches the standard and then conveyed.
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| CN202010126397.4A CN111288430A (en) | 2020-02-28 | 2020-02-28 | Movable waste heat steam power generation device and waste heat steam utilization method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115200260A (en) * | 2022-06-29 | 2022-10-18 | 上海发电设备成套设计研究院有限责任公司 | High-temperature steam heat pump system of movable air source and operation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115200260A (en) * | 2022-06-29 | 2022-10-18 | 上海发电设备成套设计研究院有限责任公司 | High-temperature steam heat pump system of movable air source and operation method thereof |
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