CN209654091U - Co-generation unit - Google Patents
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- CN209654091U CN209654091U CN201821735395.XU CN201821735395U CN209654091U CN 209654091 U CN209654091 U CN 209654091U CN 201821735395 U CN201821735395 U CN 201821735395U CN 209654091 U CN209654091 U CN 209654091U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/14—Combined heat and power generation [CHP]
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Abstract
This application involves cogeneration of heat and power technologies, a kind of co-generation unit is provided, (1) is recycled including the cogeneration of heat and power with steam turbine (101) and heater (103), the steam drain of the steam turbine (101) is connected to the heater (103), with the heater (103) to heating system heat supply, it is characterised in that: also have the first cogeneration circulation (2) and the second cogeneration circulation (3)；The first cogeneration circulation (2) is connected to the extraction opening of the steam turbine (101) by extraction valve (11), is generated electricity with absorbing the steam thermal energy of the extraction opening supply；The second cogeneration circulation (3) connects the feeding pipe of the heating system by the first gating valve group (1X), is generated electricity with absorbing the thermal energy of the feeding pipe.Provide a kind of co-generation unit for being able to maintain and realizing the flexible modulation of thermoelectricity load under the premise of rated load operation.
Description
Technical field
It is able to maintain under the premise of rated load operation this application involves cogeneration of heat and power technology more particularly to one kind and realizes that thermoelectricity is negative
The co-generation unit of the flexible modulation of lotus.
Background technique
In the prior art, Steam Turbine is important one of cogeneration of heat and power mode, has a wide range of applications.Simultaneously because state
The support of family's relevant policies, the growth momentum of China's cogeneration of heat and power are very swift and violent.The Study on energy saving for carrying out thermal power plant unit, mentions
High energy source utilization rate, it is significant for the energy-saving and emission-reduction of Thermal Power Generation Industry.
Current some big thermoelecrtic unit extraction pressures are generally in 0.5MPa or so, and the hot-water heating that building heating uses at present
The supply water temperature of system is usually no more than 95 DEG C, and the comfort level of heating can be improved due to reducing supply water temperature, many in recent years to supply
The supply and return water temperature of heating system uses 80 DEG C/60 DEG C, even lower supply and return water temperature.And heat supply steam extraction parameter is significantly larger than
The needs of heating system generally require to throttle in actual motion, cause very bigLoss.
The generated energy of still further aspect, conventional back pressure formula steam turbine changes with thermic load, and production method is " fixed with heat
Electricity ", i.e., electric load changes with thermic load, and thermoelectricity Load Regulation process difficulty is big, energy consumption is high, security risk is big.Preferentially meeting
Under the premise of thermic load, electric load fluctuation is larger, increases the spare capacity of electric system.
The complete machine enthalpy drop of yet another aspect, back pressure turbine is small, if deviateing design conditions, the internal efficiency ratio of steam turbine
It can decline to a great extent, often be reduced to 60% from 80% and increase hereinafter, in turn resulting in power generation energy consumption.When thermic load is lower, make
The utilization rate of equipment and installations for obtaining unit substantially reduces, and Study on Variable Condition Features is poor.
Utility model content
In order to solve the above-mentioned technical problem or it at least is partially solved above-mentioned technical problem, this application provides a kind of energy
The co-generation unit of the flexible modulation of thermoelectricity load is realized under the premise of holding rated load operation.
This application provides a kind of co-generation units, including the cogeneration of heat and power circulation with steam turbine and heater, institute
The steam drain for stating steam turbine is connected to the heater, with the heater to heating system heat supply, also has the first cogeneration
Circulation and the second cogeneration circulation；First cogeneration cycles through the steam extraction that extraction valve connects the steam turbine
Mouthful, it is generated electricity with absorbing the steam thermal energy of the extraction opening supply；Second cogeneration cycles through the first sluice valve
Group connects the feeding pipe of the heating system, is generated electricity with absorbing the thermal energy of the feeding pipe.
In one specific embodiment of the application, also there is peak load calorifier, the steam turbine is switched to by the extraction valve
Extraction opening, with the peak load calorifier to heating system carry out mend peak heat supply.
In one specific embodiment of the application, the extraction opening of the steam turbine is connected first waste heat by bleed steam pipework and is sent out
Electricity circulation and the peak load calorifier, the bleed steam pipework are equipped with the extraction valve and the second gating valve group, pass through described second
Sluice valve group selection turns on and off the connection with first cogeneration circulation or the peak load calorifier.
In one specific embodiment of the application, the first gating valve group includes the by-passing valve for being mounted on feeding pipe, and
It is installed on the inlet valve and outlet valve at by-passing valve both ends, the inlet valve and outlet valve are controlled respectively to second cogeneration
The water supply of circulation and return water.
In one specific embodiment of the application, the second gating valve group includes the by-passing valve for being mounted on the bleed steam pipework,
And it is installed on the inlet valve and outlet valve at by-passing valve both ends, the inlet valve and outlet valve are controlled respectively to first waste heat
The steam supply and return water of power generation cycle.
In one specific embodiment of the application, second cogeneration cycles through third gating valve group connection described first
Cogeneration circulation is generated electricity with absorbing the heat of the first cogeneration circulation.
In one specific embodiment of the application, the third gating valve group is set to the turbine of the first cogeneration circulation
After machine.
In one specific embodiment of the application, the third gating valve group includes being mounted on first cogeneration to recycle
By-passing valve on circulation line, and it is installed on first gate valve and the second gate valve at by-passing valve both ends, first gate valve and
Two gate valves control the water supply recycled to second cogeneration and return water respectively.
In one specific embodiment of the application, first cogeneration circulation includes the first turbine being sequentially communicated, the
One condenser, the first working medium pump and the first evaporator；First turbine drives first electrical power generators.
In one specific embodiment of the application, the heat absorbing side of first evaporator is connected to the steamer by the extraction valve
The extraction opening of machine, to absorb the steam thermal energy of the extraction opening supply.
In one specific embodiment of the application, second cogeneration circulation includes the second turbine being sequentially communicated, the
Two condensers, the second working medium pump, the second evaporator and third evaporator, second turbine drive second generator
Power generation.
In one specific embodiment of the application, the heat absorbing side of second evaporator connects the confession by the first gating valve group
The feeding pipe of heating system, to absorb the heat of the feeding pipe；Alternatively, the heat absorbing side of third evaporator is gated by third
Valve group is connected to the first cogeneration circulation, to absorb the heat of the first cogeneration circulation.
In one specific embodiment of the application, the third evaporator is also parallel with a by-passing valve, passes through the by-passing valve
Control opens or closes the third evaporator.
In one specific embodiment of the application, the first cogeneration circulation and second cogeneration circulation are
The power generation cycle of electric energy, low boiling working fluid boiling point under operational pressure are converted thermal energy into using low boiling point organic working medium
Less than 100 DEG C.
In one specific embodiment of the application, the boiling point of the low boiling working fluid in the first cogeneration circulation is greater than described
The boiling point of the low boiling working fluid of second cogeneration circulation.
In one specific embodiment of the application, the cogeneration of heat and power circulation is back pressure steam turbines.
Above-mentioned technical proposal provided by the embodiments of the present application has the advantages that the embodiment of the present application compared with prior art
Two cogenerations circulations are coupled again outside steam Rankine cogeneration of heat and power circulation, the case where guaranteeing unit rated load operation
Under, it makes full use of high level heat and low temperature latent heat to generate electricity, not only can increase system generated energy, while also can be reduced system
Loss, other two cogeneration circulation can be selectively turned on or close, and output mode can be according to thermic load and electric load need
The variation asked is adjusted flexibly, and can continue to realize the optimal thermal efficiency.
Detailed description of the invention
The drawings herein are incorporated into the specification and forms part of this specification, and shows and meets the utility model
Embodiment, and be used to explain the principles of the present invention together with specification.
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, for ordinary skill people
For member, without any creative labor, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of circulation schematic diagram of co-generation unit provided by the embodiments of the present application.
Specific embodiment
To keep the purposes, technical schemes and advantages of the embodiment of the present application clearer, below in conjunction with the embodiment of the present application
In attached drawing, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the application, instead of all the embodiments.Based on the embodiment in the application, ordinary skill people
Member's every other embodiment obtained without making creative work, shall fall in the protection scope of this application.
As shown in Figure 1, the embodiment of the present application provides a kind of co-generation unit, main includes having steam turbine 101 and adding
The cogeneration of heat and power of hot device 103 recycles the 1, first cogeneration circulation 2 and the second cogeneration circulation 3.The row of steam turbine 101
Steam ports is connected to normally opened heater 103, can be to heating system heat supply with this heater 103.
Wherein, the first cogeneration circulation 2 can be connected to the extraction opening of steam turbine 101 by extraction valve 11, to absorb steam extraction
The steam thermal energy of mouth supply generates electricity.It is understood that can be by controlling opening or closing for extraction valve 11, to control out
The first cogeneration circulation 2 is opened or closes, when opening the first cogeneration circulation 2, the part that steam turbine 101 can be recycled is high-order
Thermal energy carries out supplement power generation, increases system generated energy, reduces systemLoss.
And the second cogeneration circulation 3 can connect the feeding pipe of heating system by the first gating valve group 1X, to absorb
The thermal energy of feeding pipe generates electricity.It is understood that can be opened or closed by control the first gating valve group 1X to control
Second cogeneration circulation 3 recycles low temperature heat energy in heat supplying pipeline and generates electricity, while can reduce supply water temperature.
It will be understood by those skilled in the art that the first gating valve group 1X can be as shown in Figure 1, including main supply pipe
The by-passing valve of road and induction valve and outlet valve at by-passing valve both ends are connect respectively, to control unlatching or the pass on other adapter tube road
It closes, while having no effect on the flowing of working medium in main feeding pipe.Other similar valve group can certainly be selected to realize, as long as
It is able to achieve above-mentioned function, that is, can be applied in the utility model embodiment.
In the utility model embodiment, it is believed that be outer in steam Rankine cogeneration of heat and power circulation and coupled two waste heats
Power generation cycle makes full use of high level heat and low temperature latent heat to generate electricity, no in the case where guaranteeing unit rated load operation
It only can increase system generated energy, while also can be reduced systemLoss, other two cogeneration circulation can be selectively turned on
Or close, output mode can be adjusted flexibly according to the variation of thermic load and electrical load requirement, can continue to realize optimal heat
Efficiency.
In one specific embodiment of the utility model, in order to guarantee the heating requirement under peak heating load, can also have spike
Heater 107 can also be switched to the extraction opening of steam turbine 101 by extraction valve 11, with peak load calorifier 107 to heating system into
Row mends peak heat supply.The extraction opening of steam turbine 101 can connect the first cogeneration circulation 2 and peak load calorifier by bleed steam pipework
107, bleed steam pipework is equipped with extraction valve 11 and the second gating valve group 2X, is turned on and off by the second gating valve group 2X selection and the
The connection of one cogeneration circulation 2 or peak load calorifier 107.The setting position of second gating valve group 2X may be alternatively located at spike and add
Between hot device 107 and extraction valve 11, in this way, the high-order heat in part of 2 recycling steam turbines 101 can be recycled first with the first cogeneration
Can, it is sent again to peak load calorifier 107 carry out efficient heat exchange later, the supply water temperature need of heat supplying pipeline can be met in time
It asks, but high level heat will not be lost.And the supply water temperature that the second cogeneration circulation 3 can effectively recycle heat supplying pipeline is higher than
Energy when set temperature.
In one specific embodiment of the utility model, to further increase the thermal efficiency, the second cogeneration circulation 3 can also pass through
Third gates valve group 3X and is connected to the first cogeneration circulation 2, is generated electricity with absorbing the heat of the first cogeneration circulation 2, or
Referred to as 2 pairs of working medium are recycled using the first cogeneration to preheat.Third gating valve group 3X may be selected to be set to the first waste heat hair
After the turbine of electricity circulation 2, it is equivalent to using the second cogeneration circulation 3 and realizes the function of condenser.
In one specific embodiment of the utility model, the first cogeneration circulation 2 can mainly include be sequentially communicated first thoroughly
Flat machine 201, the first condenser 206, the first working medium pump 207 and the first evaporator 208, the first turbine 201 can drive first
Generator 202 generates electricity.The heat absorbing side of first evaporator 208 can be connected to the extraction opening of steam turbine 101 by extraction valve 11, to inhale
The steam thermal energy of extraction opening supply is received, finally the first turbine 201 is delivered to heat is logical and generates electricity.
Turbine described in embodiment is the equipment that the energy that will be accumulated in fluid media (medium) is converted to mechanical energy.Turbine can
To be the turbine plants such as steam turbine, turbine, flue gas turbine expander, expanding machine.
In one specific embodiment of the utility model, the second cogeneration circulation 3 mainly includes the second turbine being sequentially communicated
Machine 301, the second condenser 303, the second working medium pump 304, the second evaporator 307 and third evaporator 306, the second turbine
301 drive the power generation of the second generator 302.The heat absorbing side of second evaporator 307 connects heating system by the first gating valve group 1X
Feeding pipe, to absorb the heat of feeding pipe；Alternatively, the heat absorbing side of third evaporator 306 gates valve group 3X by third
It is connected to the first cogeneration circulation 2, to absorb the heat of the first cogeneration circulation 2.It is considered that third evaporator 306 is
The heat sink of gating, and the second evaporator 307 is the standing heat sink of the circulation.
In one specific embodiment of the utility model, the first cogeneration circulation 2 and the second cogeneration circulation 3 are selected as
Be the power generation cycle that electric energy is converted thermal energy into using low boiling point organic working medium, low boiling working fluid under operational pressure boiling point
Less than 100 DEG C.The boiling point of low boiling working fluid in first cogeneration circulation 2 is greater than the low boiling point of the second cogeneration circulation 3
The boiling point of working medium.
The natural refrigerant under normal temperature and pressure being gas or artificial synthesized working medium can be used in low boiling working fluid, comprising: hydrocarbon, alkane
Class, alkenes, acetylenic, arene, the oxygenatedchemicals including ether, alcohols, phenols, aldehydes, ketone, esters, anaerobic contain
Halogen compound, aerobic halide-containing, sulfur-containing compound, nitrogenous compound；Either either simplex matter, is also possible to mixture,
As ethane, butane, normal butane, iso-butane, pentane, isopentane, pentamethylene, ethylene, propylene, butylene, maleic, isobutene,
Butadiene, dimethylbenzene, chloroethanes, chlorobutane, vinyl chloride, R134a series, R410A series, HFC series synthetic, dimethyl ether,
Liquefied petroleum gas, carbon dioxide gas, carbon dioxide and its absorbent mixture and nitrogen, air, helium, argon gas, hydrogen
The various applicable working medium such as aqueous solution of gas, ammonia, ammonia, are referred to as low boiling point working medium.
One concrete application example of the utility model is specifically described below in conjunction with Fig. 1 as follows:
The steam drain of steam turbine 101 is connected with 103 heat release side entrance of vacuum type heat exchangers for district heating by the road, heater 103
It is hydrophobic return to therrmodynamic system from hot well and the drainage pump being equipped on the pipeline, the entrance of 103 heat absorbing side of heater is by the road
And the circulation pump of heat-supply network 106 on pipeline is connected with heat supply network return water, on the heat absorption side outlet and water supply pipe of heater 103 also
It is parallel with peak load calorifier 107.
Wherein the heat absorption side entrance of peak load calorifier 107, outlet are separately installed with inlet valve 5, outlet valve 6 and by-passing valve 7.
Heat supply bleed steam pipework is connected with the heat release side entrance of peak load calorifier 107, and extraction valve 11 is equipped on pipeline.First waste heat
208 heat release side entrance of the first evaporator, the outlet of power generation cycle 2 are separately installed with inlet valve 13 and outlet valve 14, and inlet valve
13 and outlet valve 14 be separately mounted to the two sides of by-passing valve 12.Second cogeneration circulation 3 307 cold side of the second evaporator with
Heat supply network water supply pipe is connected, and is equipped with inlet valve 9 and outlet valve 10, and by-passing valve 8 is arranged between inlet valve 9 and outlet valve 10.
To reduce system investments, guaranteeing the heating requirement under peakload, system is provided with spike heat exchangers for district heating 107.
The energy in extracted steam from turbine and heat supply network water supply is separately recovered in first cogeneration circulation 2 and the second cogeneration circulation 3, increases
System generated energy reduces systemLoss.So that the energy obtains cascade utilization, System Turbine Relative Internal Efficiency not only can be improved, but also
Energy consumption can be reduced, reserve capacity of power grid is reduced.
Within the system, when three circulations all enable, the steam discharge of steam turbine 101 enters heater 103 to heat confession
The return water of heat supply network.And heat supply steam extraction initially enters the first evaporator 208 of the first cogeneration circulation 2 with the high-order heat of recovery section
Can be carried out power generation, enter back into peak load calorifier 107 to heat the recirculated water of heat supply network, it is heated after heat supply network recirculated water enter second
The second evaporator 307 recycling low temperature heat energy power generation of cogeneration circulation 3, resupplies heat user.
It, can there are several types of regulation and control models in addition, the system of the utility model embodiment:
In preliminary heating period or latter stage, it can choose the inlet valve and outlet valve of the cooling tower 104 in closing system, will cool down
Tower 104 is spare.At this moment extraneous thermal load demands are lower, and supply and return water temperature general control is at 65 DEG C/45 DEG C.It can keep steam extraction
11 aperture of valve is constant, to guarantee that the specified steam extraction amount of steam turbine is constant；Extraction valve 11 to the first is connected by the second gating valve group 2X
Cogeneration circulation 2, can specifically close by-passing valve 12, and open inlet valve 13 and liquid valve 14, to connect the first waste heat
Power generation cycle 2 generates electricity.
The second gating of control simultaneously valve group 4X connects heating system and 107 cold side of peak load calorifier, specifically can be pass
By-passing valve 7 is closed, liquid feed valve 5 and liquid valve 6 are opened, is heated with opening peak load calorifier 107 to the supply water of heating system.
The first gating of control simultaneously valve group 1X connects heating system to the second cogeneration circulation 3, specifically can be closing
By-passing valve 8 opens liquid feed valve 9 and liquid valve 10, to open the second cogeneration circulation 3.Third gating valve group 3X is controlled simultaneously
It connects the first cogeneration and recycles 2 to the second cogenerations circulation 3, specifically can be the side for closing the first cogeneration circulation 2
Port valve 203 opens the first gate valve 204 and the second gate valve 205；The preheater by-passing valve 305 of the second cogeneration circulation 3 is closed,
Open the liquid feed valve of preheater.The first cogeneration circulation 2 and the second cogeneration circulation 3 are enabled simultaneously, are guaranteeing unit volume
Constant load makes full use of extracted steam from turbine and heat supply network water supply heat energy power-generating in the case where running, and increases system generated energy, reduces
SystemLoss, realizes thermoelectricity load flexible modulation.
For example in the heat supply time cold phase, 104 inlet valve of cooling tower and outlet valve can be closed, cooling tower 104 is spare.For return water
Temperature is generally at 80 DEG C/49 DEG C.Open extracted steam from turbine valve 11；By-passing valve 12 is closed, inlet valve 13 and liquid valve 14 are opened；It closes
By-passing valve 7 is closed, liquid feed valve 5 and liquid valve 6 are opened；By-passing valve 8 is opened, liquid feed valve 9 and liquid valve 10 are closed.Close more than first
The first gate valve 204 and the second gate valve 205 of hot power generation cycle 2 open by-passing valve 203.The first cogeneration circulation 2 is enabled, is closed
The second cogeneration circulation 3 is closed, in the case where guaranteeing unit rated load operation, passes through the second cogeneration of off-the-line circulation 3
To increase heat supply network supply water temperature, the extraneous thermal load demands of satisfaction.
For example in heat supply freeze-up, the inlet valve and outlet valve of cooling tower 104 are closed, cooling tower 104 is spare.For return water
For temperature generally at 95 DEG C/54 DEG C, heating demand is larger.Open extracted steam from turbine valve 11；By-passing valve 12 is opened, inlet valve 13 is closed
With liquid valve 14；By-passing valve 7 is closed, liquid feed valve 5 and liquid valve 6 are opened, opens by-passing valve 8, closes liquid feed valve 9 and liquid valve
10.The first cogeneration circulation 2 and the second cogeneration circulation 3 are closed, it is excellent in the case where guaranteeing that unit rated load is constant
First meet extraneous thermal load demands.
It should be noted that, in this document, the relational terms of such as " first " and " second " or the like are used merely to one
A entity or operation with another entity or operate distinguish, without necessarily requiring or implying these entities or operation it
Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant are intended to
Cover non-exclusive inclusion, so that the process, method, article or equipment for including a series of elements not only includes those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or setting
Standby intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
It is including that there is also other identical elements in the element process, method, article or equipment.
The above is only specific embodiment of the present utility model, is made skilled artisans appreciate that or realizing this
Utility model.Various modifications to these embodiments will be apparent to one skilled in the art, institute herein
The General Principle of definition can be realized in other embodiments without departing from the spirit or scope of the present utility model.
Therefore, the present invention will not be limited to the embodiments shown herein, and is to fit to and applied original herein
Manage the widest scope consistent with features of novelty.
Claims (16)
1. a kind of co-generation unit recycles (1) including the cogeneration of heat and power with steam turbine (101) and heater (103), described
The steam drain of steam turbine (101) is connected to the heater (103), with the heater (103) to heating system heat supply, feature
It is: also there is the first cogeneration circulation (2) and the second cogeneration circulation (3)；
The first cogeneration circulation (2) connects the extraction opening of the steam turbine (101) by extraction valve (11), to absorb
The steam thermal energy for stating extraction opening supply generates electricity；
The second cogeneration circulation (3) connects the feeding pipe of the heating system by the first gating valve group (1X), with
The thermal energy for absorbing the feeding pipe generates electricity.
2. co-generation unit as described in claim 1, which is characterized in that also there are peak load calorifier (107), by described
Extraction valve (11) is switched to the extraction opening of the steam turbine (101), is mended with the peak load calorifier (107) to heating system
Peak heat supply.
3. co-generation unit as claimed in claim 2, which is characterized in that the extraction opening of the steam turbine (101) passes through pumping
Vapor pipeline connects the first cogeneration circulation (2) and the peak load calorifier (107), and the bleed steam pipework is equipped with the pumping
Steam valve (11) and the second gating valve group (2X), are turned on and off and described more than first by the second gating valve group (2X) selection
The connection of hot power generation cycle (2) or the peak load calorifier (107).
4. co-generation unit as described in claim 1, which is characterized in that first gating valve group (1X) includes being mounted on
The by-passing valve (8) of feeding pipe, and it is installed on the inlet valve (9) and outlet valve (10) at by-passing valve (8) both ends, the inlet valve
(9) and outlet valve (10) controls water supply and return water to second cogeneration circulation (3) respectively.
5. co-generation unit as claimed in claim 3, which is characterized in that second gating valve group (2X) includes being mounted on
The by-passing valve (12) of the bleed steam pipework, and it is installed on the inlet valve (13) and outlet valve (14) at by-passing valve (12) both ends, institute
It states inlet valve (13) and outlet valve (14) controls the steam supply and return water for recycling (2) to first cogeneration respectively.
6. co-generation unit as described in claim 1, which is characterized in that second cogeneration circulation (3) passes through the
Three gatings valve group (3X) are connected to the first cogeneration circulation (2), to absorb the heat of the first cogeneration circulation (2)
It generates electricity.
7. co-generation unit as claimed in claim 6, which is characterized in that third gating valve group (3X) is set to described
First cogeneration recycles after the turbine of (2).
8. co-generation unit as claimed in claim 6, which is characterized in that third gating valve group (3X) includes being mounted on
By-passing valve (203) on the circulation line of the first cogeneration circulation (2), and it is installed on by-passing valve (203) both ends
First gate valve (204) and the second gate valve (205), first gate valve (204) and the second gate valve (205) are controlled respectively to described
Two cogenerations recycle water supply and the return water of (3).
9. co-generation unit as described in claim 1, which is characterized in that first cogeneration circulation (2) include according to
The first turbine (201), the first condenser (206), the first working medium pump (207) and the first evaporator (208) of secondary connection；Institute
It states the first turbine (201) and drives the first generator (202) power generation.
10. co-generation unit as claimed in claim 9, which is characterized in that the heat absorbing side of first evaporator (208) is logical
The extraction opening that the extraction valve (11) are connected to the steam turbine (101) is crossed, to absorb the steam thermal energy of the extraction opening supply.
11. co-generation unit as described in claim 1, which is characterized in that second cogeneration circulation (3) include according to
The second turbine (301), the second condenser (303), the second working medium pump (304), the second evaporator (307) and of secondary connection
Three evaporators (306), second turbine (301) drive the second generator (302) power generation.
12. co-generation unit as claimed in claim 11, which is characterized in that the heat absorbing side of second evaporator (307)
The feeding pipe of the heating system is connected, by the first gating valve group (1X) to absorb the heat of the feeding pipe；Alternatively,
The heat absorbing side of third evaporator (306) is connected to the first cogeneration circulation (2) by third gating valve group (3X), with
Absorb the heat of the first cogeneration circulation (2).
13. co-generation unit as claimed in claim 12, which is characterized in that the third evaporator (306) is also parallel with
One by-passing valve (305) opens or closes the third evaporator (306) by the by-passing valve (305) control.
14. such as the described in any item co-generation units of claim 1 to 13, which is characterized in that first cogeneration follows
Ring (2) and second cogeneration circulation (3) are the power generations that electric energy is converted thermal energy into using low boiling point organic working medium
Circulation, the low boiling working fluid under operational pressure boiling point less than 100 DEG C.
15. co-generation unit as claimed in claim 14, which is characterized in that in the first cogeneration circulation (2)
The boiling point of low boiling working fluid is greater than the boiling point of the low boiling working fluid of second cogeneration circulation (3).
16. such as the described in any item co-generation units of claim 1 to 13, which is characterized in that the cogeneration of heat and power recycles (1)
For back pressure steam turbines.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821735395.XU CN209654091U (en) | 2018-10-24 | 2018-10-24 | Co-generation unit |
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| CN201821735395.XU CN209654091U (en) | 2018-10-24 | 2018-10-24 | Co-generation unit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109236397A (en) * | 2018-10-24 | 2019-01-18 | 珠海格力电器股份有限公司 | Co-generation unit |
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2018
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109236397A (en) * | 2018-10-24 | 2019-01-18 | 珠海格力电器股份有限公司 | Co-generation unit |
| CN109236397B (en) * | 2018-10-24 | 2024-03-08 | 珠海格力电器股份有限公司 | Cogeneration system |
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