CN206957773U - Electric heating unit heating system - Google Patents
Electric heating unit heating system Download PDFInfo
- Publication number
- CN206957773U CN206957773U CN201720647727.8U CN201720647727U CN206957773U CN 206957773 U CN206957773 U CN 206957773U CN 201720647727 U CN201720647727 U CN 201720647727U CN 206957773 U CN206957773 U CN 206957773U
- Authority
- CN
- China
- Prior art keywords
- heat supply
- supply network
- rotor
- pressure
- heating system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
It the utility model is related to a kind of electric heating unit heating system, in the winter time during heat supply, steam turbine high back pressure is run, basic heat exchangers for district heating using the first condenser as the first heating system, heat supply network recirculated water is once heated using the latent heat of vaporization of the first low pressure (LP) cylinder steam discharge, if the first condenser outlet heat supply network circulating water temperature can not meet heating demand, reheating then is carried out to heat supply network recirculated water using the machine or drawing gas for the second heating system, will externally carry out heat supply after heat supply network circulating water heating to heat supply network design temperature again.
Description
Technical field
It the utility model is related to a kind of electric heating unit heating system.
Background technology
China is currently one of greenhouse gas emission state maximum in the world, and " energy-saving and emission-reduction " are " 12 " period China
One important core of socio-economic development.Improving energy utilization rate, strengthening heat recovery is to save the energy, reduce carbon row
Put, the essential measure of environmental protection.The cold end loss in thermal power plant is the maximum loss of power plant thermal system.Using power plant as
Example, in the winter time under specified supplying thermal condition, turbine discharge loss can account for more than the 39% of fuel gross calorific power.Turbine discharge damages
It is waste heat discharge to lose for thermal power plant, but for low-grade building and heating, then forms huge energy wave
Take.If steam turbine rises, waste heat can be reclaimed fully for heat supply, will greatly improve heat capacity and the using energy source of power plant
Efficiency, bring huge energy-saving benefit, environmental benefit and social benefit.
In order to further improve the security reliability of heat capacity and heat supply, at the same improve the economic benefit of power plant, it is necessary to
Unit is changed to high back pressure birotor thermal power plant unit, the problem of coming years heat capacity deficiency is can solve the problem that after transformation.
In view of it is above-mentioned the defects of, the design people is actively subject to research and innovation, to found a kind of electric heating unit heat supply system
System, make it with more the value in industry.
Utility model content
Enter in order to solve the above technical problems, the purpose of this utility model is to provide one kind for 300MW cogeneration units
Row transformation so that in the winter time during heat supply, the operation of steam turbine high back pressure, heated condenser as the basic heat supply network of heating system
Device, heat supply network recirculated water is once heated using the latent heat of vaporization of unit low pressure (LP) cylinder steam discharge, condenser outlet heat supply network recirculated water
Outlet temperature reaches the difference of the saturated-steam temperature and condenser terminal difference under this operating mode corresponding to low pressure (LP) cylinder exhaust steam pressure；Steamer
Machine heat exchangers for district heating carries out reheating as peak load calorifier to heat supply network recirculated water, and heat supply network circulating water temperature is brought up into heat supply
The heat supply temperature value of system design, then to secondary network heat supply.
The utility model electric heating unit heating system, including：First heating system system, the second heating system and heat supply network follow
Ring water system and cooling column；
The first described heating system includes：First steam turbine, first steam turbine low pressure (LP) cylinder steam output dress
The first condenser of connection is put, the height of first steam turbine, row's extraction line of intermediate pressure cylinder connect the first heat exchangers for district heating；Its
In, heat supply network circulation is connected by the first heat supply network water return pipeline with the water inlet of the first condenser water side, the first condenser
The delivery port of water side connects the first heat exchangers for district heating by heat supply network circulating water pipe, and delivery port and the heat supply network of the first heat exchangers for district heating follow
First heat supply network water supply line of ring water system is connected；Described heat supply network circulating water pipe is provided with the first circulation pump of heat-supply network；Cold water
Tower is connected by the first cooling feedwater piping with the water inlet of the first condenser, and cooling column passes through the first cooling backwater pipeline and the
The delivery port of one condenser is connected, and the first cooling feedwater piping is provided with first circulation water pump；Described heat supply network recirculated water
Pipe, the first heat supply network water return pipeline, the first heat supply network feedwater piping, the first cooling feedwater piping, on the first cooling backwater pipeline respectively
Provided with controlled valve；
Second heating system includes：Second steam turbine, second steam turbine low pressure (LP) cylinder steam output device
The second condenser is connected, the height of second steam turbine, row's extraction line of intermediate pressure cylinder connect the second heat exchangers for district heating；Wherein,
Heat supply network circulation is connected by the second heat supply network water return pipeline with the water inlet of the second heat exchangers for district heating, the second heat exchangers for district heating
Delivery port by the second heat supply network feedwater piping connect heat supply network circulation, the second heat supply network water return pipeline be provided with second
Circulation pump of heat-supply network；Cooling column is connected by the second cooling feedwater piping with the water inlet of the second condenser, and cooling column passes through the
Two cooling backwater pipelines are connected with the delivery port of the second condenser, and the second cooling feedwater piping is provided with second circulation water
Pump；Described the second heat supply network water return pipeline, the second heat supply network feedwater piping, the second cooling feedwater piping, the second cooling backwater pipeline
On be respectively equipped with controlled valve；
The height of second steam turbine, row's extraction line of intermediate pressure cylinder by heating draw gas liaison tube connect the first heat supply network add
Hot device, the heating liaison tube that draws gas are provided with electric control valve；
In the winter time during heat supply, steam turbine high back pressure operation, using the first condenser as the substantially hot of the first heating system
Net heater, heat supply network recirculated water is once heated using the latent heat of vaporization of the first low pressure (LP) cylinder steam discharge, if the first condenser goes out
Mouth heat supply network circulating water temperature can not meet heating demand, then heat supply network recirculated water is entered using the machine or drawing gas for the second heating system
Row reheating, heat supply will be externally carried out after heat supply network circulating water heating to heat supply network design temperature again.
Further, the low pressure (LP) cylinder rotor in described the first heating system and the second heating system is including between non-heating period
The high back pressure rotor used during the pure condensate rotor used and heat supply, wherein, pure condensate rotor series is 2 × 6 grades, high back pressure rotor
Series is 2 × 4 grades, and monobloc forging non-stop layer hole, high back pressure rotor reduces both stage impellers than pure condensate rotor；Pure condensate rotor and high back pressure turn
The half a coupler at sub- both ends, it is consistent in the precision to center, two halves coupling bolt hole.
Further, the replacing structure of pure condensate rotor and high back pressure rotor：Using hydraulic buckling shaft joint bolt, by even
The positioning of axle device pin-and-hole and Boring preciseness ensure.
Further, connect and be provided with jiggering gear wheel between the shaft coupling of the low pressure (LP) cylinder rotor and rotor；
The end face of the shaft coupling of the low pressure (LP) cylinder rotor is provided with the first limited impression or the first positive stop lug boss, the jiggering
Gear wheel is provided with and described the first limited impression or the first limit convex in face of the end face of the shaft coupling of the low pressure (LP) cylinder rotor
The second positive stop lug boss or the second limited impression that platform is adapted；
The end face of the motor coupler is provided with the 3rd limited impression or the 3rd positive stop lug boss, the jiggering canine tooth wheel face
Be adapted with the 3rd described limited impression or the 3rd positive stop lug boss the 4th limit is provided with to the end face of the motor coupler
Position boss or the 4th limited impression.
Further, the first described steam turbine is that the steam turbine that structure obtains is changed to double-deck inner casing steam turbine,
Wherein, original low pressure bilayer inner casing is replaced by single-layer inner cylinder structure, extraction line is cut off and welded again, rear two-stage every
Plate is transformed into the assembling structure type in scene, during supplying thermal condition, before low-pressure internal cylinder the installation of level Four heat supply dividing plate at the scene may be used
In the low pressure held in ring of assembling, low pressure held in ring is replaced by the low pressure held in ring of corresponding high back pressure rotor, low pressure end two-stage dividing plate is torn open
Under, the deflector with septalium defencive function is changed to, rotor changes high back pressure heat supply rotor into simultaneously；During non-supplying thermal condition, tear open
Except deflector, low pressure end two-stage dividing plate and the low pressure held in ring with preceding level Four pure condensate dividing plate are installed, low-pressure internal cylinder coordinates pure condensate
Rotor operation.
Further, the first heating system also includes steam turbine back heating system and condensed water precision processing system, its
In, steam turbine back heating system includes 4 low-pressure heaters, 3 high-pressure heaters and 2 gland heaters, condenser
Delivery port be connected with two low-pressure heaters connected, condensate is inputted to solidifying after two by series connection low-pressure heater
Precision processing system is born water, is inputted from the condensate of condensed water precision processing system output by pipeline to two axle envelopes being arranged in parallel
In heater, other two low-pressure heaters and the series connection of series connection are passed sequentially through by the condensate exported in gland heater
Three high-pressure heaters, then condensate export to boiler.
Further, oxygen-eliminating device is additionally provided between low-pressure heater and high-pressure heater.
Further, tube bank expansion joint is installed additional between the first Steam Side of Condenser housing and rear end tube sheet, rear hydroecium is equipped with
Slidably support bearing.
Further, secondary filter is equipped with the recirculated water porch of the first condenser and the second condenser, heat supply network follows
Ring water pipe is provided with heat supply network recirculated water sample connection.
Further, the heat exchange area of first condenser is 19000m2, the Selection of Tubes in Heat Exchangers of the first condenser
TP317L soldering stainless steel straight tubes.
By such scheme, the utility model at least has advantages below：
Using the exhaust steam of High Back Pressure Steam Turbine Units and the heat-economy of the full factory of raising, in heat supply network backwater and High Back Pressure Steam Turbine Units condenser
Liaison tube is set up between recirculated water, heat supply network recirculated water is first introduced into the first condenser is once heated, High Back Pressure Steam Turbine Units operation side
Formula can only be by the saturated-steam temperature corresponding to low pressure (LP) cylinder exhaust steam pressure under heat supply network circulating water heating so far operating mode and condenser end
The difference of difference, according to live heating demand, such as the first condenser outlet heat supply network circulating water temperature can not meet heating demand, should also
Output of drawing gas using the first heating system or the second heating system is secondary to the progress of heat supply network recirculated water to the second heat exchangers for district heating
Heating, heat supply will be externally carried out after heat supply network circulating water heating to heat supply network design temperature again.
Described above is only the general introduction of technical solutions of the utility model, in order to better understand skill of the present utility model
Art means, and being practiced according to the content of specification, with preferred embodiment of the present utility model and coordinate accompanying drawing detailed below
Describe in detail bright as after.
Brief description of the drawings
Fig. 1 is the structural representation of the heat-supplying mode of the utility model electric heating unit heating system；
Fig. 2 is the one of which structural representation that the birotor of the utility model electric heating unit heating system exchanges.
Embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below
Embodiment is used to illustrate the utility model, but is not limited to the scope of the utility model.
Referring to Fig. 1, a kind of electric heating unit heating system described in the preferred embodiment of the utility model one, including：First supplies
Hot systems system, the second heating system and heat supply network circulation and cooling column；
The first described heating system includes：First steam turbine, first steam turbine low pressure (LP) cylinder 12 steam output
Device connects the first condenser 15, and the height of first steam turbine, row's extraction line of intermediate pressure cylinder 11 connect the heating of the first heat supply network
Wherein, heat supply network circulation is connected device 13 by the first heat supply network water return pipeline with the water inlet of the first condenser water side, and first
The delivery port of condenser water side by heat supply network circulating water pipe connect the first heat exchangers for district heating, the delivery port of the first heat exchangers for district heating with
First heat supply network water supply line of heat supply network circulation is connected；Described heat supply network circulating water pipe is provided with the first circulation pump of heat-supply network
14；Cooling column is connected by the first cooling feedwater piping with the water inlet of the first condenser, and cooling column passes through the first cooling backwater
Pipeline is connected with the delivery port of the first condenser, and the first cooling feedwater piping is provided with first circulation water pump 16；Described
Heat supply network circulating water pipe, the first heat supply network water return pipeline, the first heat supply network feedwater piping, the first cooling feedwater piping, the first cooling backwater
Controlled valve is respectively equipped with pipeline；
Second heating system includes：Second steam turbine, second steam turbine low pressure (LP) cylinder 22 steam output dress
The second condenser 25 of connection is put, the height of second steam turbine, row's extraction line of intermediate pressure cylinder 21 connect the second heat exchangers for district heating
23；Wherein, heat supply network circulation is connected by the second heat supply network water return pipeline with the water inlet of the second heat exchangers for district heating, the second heat
The delivery port of net heater connects heat supply network circulation by the second heat supply network feedwater piping, on the second heat supply network water return pipeline
Provided with the second circulation pump of heat-supply network 24；Cooling column is connected by the second cooling feedwater piping with the water inlet of the second condenser, cold
Water tower is connected by the second cooling backwater pipeline with the delivery port of the second condenser, and the second cooling feedwater piping is provided with the
Two-cycle pump 26；It is described the second heat supply network water return pipeline, the second heat supply network feedwater piping, the second cooling feedwater piping, second cold
But controlled valve is respectively equipped with water return pipeline；
The height of second steam turbine, row's extraction line of intermediate pressure cylinder by heating draw gas liaison tube 01 connect the first heat supply network
Heater, the heating liaison tube that draws gas are provided with electric control valve 02；
In the winter time during heat supply, steam turbine high back pressure operation, using the first condenser as the substantially hot of the first heating system
Net heater, heat supply network recirculated water is once heated using the latent heat of vaporization of the first low pressure (LP) cylinder steam discharge, if the first condenser goes out
Mouth heat supply network circulating water temperature can not meet heating demand, then heat supply network recirculated water is entered using the machine or drawing gas for the second heating system
Row reheating, heat supply will be externally carried out after heat supply network circulating water heating to heat supply network design temperature again.
Embodiment 2
The present embodiment electric heating unit heating system, on the basis of embodiment 1, the first described heating system and second supplies
The low pressure (LP) cylinder rotor of the steam turbine in hot systems includes what is used during the pure condensate rotor used between non-heating period and heat supply
High back pressure rotor, wherein, pure condensate rotor series is 2 × 6 grades, and high back pressure rotor series is 2 × 4 grades, monobloc forging non-stop layer hole, highback
Rotor is pressed to reduce both stage impellers than pure condensate rotor；The half a coupler of pure condensate rotor and high back pressure two ends of rotor, to center, two halves
The precision in coupling bolt hole is consistent.
Further, the replacing structure of pure condensate rotor and high back pressure rotor：Using hydraulic buckling shaft joint bolt, by even
The positioning of axle device pin-and-hole and Boring preciseness ensure.
So-called low pressure (LP) cylinder high back pressure birotor exchanges, i.e.,：Low pressure of the rotor and stator blade series with respect to reduction is used during heat supply
Rotor, the operation of condenser high back pressure；The rotor that the non-incense heat phase is matched somebody with somebody using former design, the low back pressure operation of condenser.Adopt in the winter time
Run between warm period using newly-designed rotor unit high back pressure, play its improved heat capacity, the operation of summer pure condensate operating mode
Original rotor is gained, ensures being substantially improved for the annual comprehensive profitability of enterprise.
As shown in Fig. 2 in the various embodiments described above, connect and be provided between the shaft coupling of the low pressure (LP) cylinder rotor and rotor
Provided with jiggering gear wheel 5；
The end face of the shaft coupling 23 of the low pressure (LP) cylinder rotor is provided with the first positive stop lug boss 24, and the jiggering gear wheel faces
The end face of the shaft coupling 23 of the low pressure (LP) cylinder rotor is provided with the second limited impression being adapted with the first described positive stop lug boss
51；
The end face of the motor coupler 31 is provided with the 3rd limited impression, and the jiggering gear wheel joins in face of the motor
The end face of axle device is provided with the 4th positive stop lug boss 52 being adapted with the 3rd described limited impression.
The present embodiment can also be the expansion (not having view) of following structure：One structure, the connection of the low pressure (LP) cylinder rotor
The end face of axle device is provided with the first limited impression, and the jiggering gear wheel is in face of the end face of the shaft coupling 23 of the low pressure (LP) cylinder rotor
It is provided with the second positive stop lug boss being adapted with the first described limited impression.
The end face of the motor coupler is provided with the 3rd positive stop lug boss, and the jiggering gear wheel faces the motor shaft coupling
The end face of device is provided with the 4th limited impression being adapted with the 3rd described positive stop lug boss.
Or secondly structure, the end face of the shaft coupling of the low pressure (LP) cylinder rotor are provided with the first limited impression, the jiggering is big
Face of gear is provided with the be adapted with the first described limited impression second limit to the end face of the shaft coupling of the low pressure (LP) cylinder rotor
Position boss.
The end face of the motor coupler is provided with the 3rd limited impression, and the jiggering gear wheel faces the motor shaft coupling
The end face of device is provided with the 4th positive stop lug boss being adapted with the 3rd described limited impression.
Or thirdly structure, the end face of the shaft coupling of the low pressure (LP) cylinder rotor are provided with the first positive stop lug boss, the jiggering is big
Face of gear is provided with the be adapted with the first described positive stop lug boss second limit to the end face of the shaft coupling of the low pressure (LP) cylinder rotor
Position groove.
The end face of the motor coupler is provided with the 3rd positive stop lug boss, and the jiggering gear wheel faces the motor shaft coupling
The end face of device is provided with the 4th limited impression being adapted with the 3rd described positive stop lug boss.
In the various embodiments described above, the first described steam turbine is to produce C300-16.7/ to Shanghai steam turbine plant Co., Ltd
The steam turbine for being changed structure and obtaining of 0.43/537/537 type steam turbine, wherein, original low pressure bilayer inner casing is changed
For single-layer inner cylinder structure, extraction line being cut off and welded again, rear two-stage dividing plate is transformed into the assembling structure type in scene,
During supplying thermal condition, before low-pressure internal cylinder level Four heat supply installed at the scene in assembling low pressure held in ring, by low pressure held in ring more with dividing plate
The low pressure held in ring of corresponding high back pressure rotor is changed to, low pressure end two-stage dividing plate is pulled down, is changed to leading with septalium defencive function
Flowing plate, rotor change high back pressure heat supply rotor into simultaneously；During non-supplying thermal condition, remove deflector, install low pressure end two-stage dividing plate and
Low pressure held in ring with preceding level Four pure condensate dividing plate, low-pressure internal cylinder coordinate pure condensate rotor operation.
In the various embodiments described above, in addition to steam turbine back heating system and condensed water precision processing system, wherein, steamer
Machine back heating system includes 4 low-pressure heaters, 3 high-pressure heaters and 2 gland heaters, the delivery port of condenser
It is connected with two low-pressure heaters of series connection, condensate is inputted to condensate fine after two by series connection low-pressure heater
Reason system, inputted from the condensate of condensed water precision processing system output by pipeline to two gland heaters being arranged in parallel
In, other two low-pressure heaters of series connection and three height of series connection are passed sequentially through by the condensate exported in gland heater
Heater is pressed, then condensate is exported to boiler.
In the various embodiments described above, oxygen-eliminating device is additionally provided between low-pressure heater and high-pressure heater.
In the various embodiments described above, tube bank expansion joint, rear water are installed additional between the first Steam Side of Condenser housing and rear end tube sheet
Room is equipped with sliding support bearing.
In the various embodiments described above, secondary filter is provided with the recirculated water porch of the first condenser and the second condenser, heat
Net circulating water pipe is provided with heat supply network recirculated water sample connection.
In the various embodiments described above, the heat exchange area of first condenser is 19000m2, and the first heat exchange tube of condenser is selected
TP317L soldering stainless steel straight tubes.
Described above is only preferred embodiment of the present utility model, is not limited to the utility model, it is noted that
For those skilled in the art, on the premise of the utility model technical principle is not departed from, can also do
Go out some improvement and modification, these improvement and modification also should be regarded as the scope of protection of the utility model.
Claims (10)
- A kind of 1. electric heating unit heating system, it is characterised in that including：First heating system system, the second heating system and heat Net circulation and cooling column；The first described heating system includes：First steam turbine, first steam turbine low pressure (LP) cylinder steam output device connect The first condenser is connect, the height of first steam turbine, row's extraction line of intermediate pressure cylinder connect the first heat exchangers for district heating；Wherein, it is hot Net circulation is connected by the first heat supply network water return pipeline with the water inlet of the first condenser water side, the first condenser water side Delivery port connects the first heat exchangers for district heating, delivery port and the heat supply network circulating water of the first heat exchangers for district heating by heat supply network circulating water pipe First heat supply network water supply line of system is connected；Described heat supply network circulating water pipe is provided with the first circulation pump of heat-supply network；Cooling column passes through First cooling feedwater piping is connected with the water inlet of the first condenser, and cooling column passes through the first cooling backwater pipeline and the first condensing The delivery port of device is connected, and the first cooling feedwater piping is provided with first circulation water pump；Described heat supply network circulating water pipe, first Heat supply network water return pipeline, the first heat supply network feedwater piping, the first cooling feedwater piping, switch is respectively equipped with the first cooling backwater pipeline Valve；Second heating system includes：Second steam turbine, second steam turbine low pressure (LP) cylinder steam output device connection Second condenser, the height of second steam turbine, row's extraction line of intermediate pressure cylinder connect the second heat exchangers for district heating；Wherein, heat supply network Circulation is connected by the second heat supply network water return pipeline with the water inlet of the second heat exchangers for district heating, and the second heat exchangers for district heating goes out The mouth of a river connects heat supply network circulation by the second heat supply network feedwater piping, and the second heat supply network water return pipeline is provided with the second heat supply network Water circulating pump；Cooling column is connected by the second cooling feedwater piping with the water inlet of the second condenser, and cooling column is cold by second But water return pipeline is connected with the delivery port of the second condenser, and the second cooling feedwater piping is provided with second circulation water pump；Institute The second heat supply network water return pipeline for stating, the second heat supply network feedwater piping, the second cooling feedwater piping, on the second cooling backwater pipeline respectively Provided with controlled valve；The height of second steam turbine, row's extraction line of intermediate pressure cylinder by heating draw gas liaison tube connect the first heat supply network heat Device, the heating liaison tube that draws gas are provided with electric control valve.
- 2. electric heating unit heating system according to claim 1, it is characterised in that the first described heating system and second Low pressure (LP) cylinder rotor in heating system includes the high back pressure rotor used during the pure condensate rotor used between non-heating period and heat supply, Wherein, pure condensate rotor series is 2 × 6 grades, and high back pressure rotor series is 2 × 4 grades, and monobloc forging non-stop layer hole, high back pressure rotor is than pure Solidifying rotor reduces both stage impellers；The half a coupler of pure condensate rotor and high back pressure two ends of rotor, to center, two halves coupling bolt The precision in hole is consistent.
- 3. electric heating unit heating system according to claim 2, it is characterised in that pure condensate rotor and high back pressure rotor are more Change structure：Using hydraulic buckling shaft joint bolt, ensure by the positioning of shaft joint pin-and-hole and Boring preciseness.
- 4. electric heating unit heating system according to claim 2, it is characterised in that connect the low pressure (LP) cylinder rotor and motor Jiggering gear wheel is provided between the shaft coupling of rotor；The end face of the shaft coupling of the low pressure (LP) cylinder rotor is provided with the first limited impression or the first positive stop lug boss, the jiggering canine tooth Wheel is provided with and the first described limited impression or the first positive stop lug boss phase in face of the end face of the shaft coupling of the low pressure (LP) cylinder rotor The second positive stop lug boss or the second limited impression of adaptation；The end face of the motor coupler is provided with the 3rd limited impression or the 3rd positive stop lug boss, and the jiggering gear wheel faces institute The end face for stating motor coupler is provided with the 4th limit convex being adapted with the 3rd described limited impression or the 3rd positive stop lug boss Platform or the 4th limited impression.
- 5. electric heating unit heating system according to claim 2, it is characterised in that the first described steam turbine is to bilayer Inner casing steam turbine is changed the steam turbine that structure obtains, wherein, original low pressure bilayer inner casing is replaced by single-layer inner cylinder knot Structure, extraction line being cut off and welded again, rear two-stage dividing plate is transformed into the assembling structure type in scene, during supplying thermal condition, Level Four heat supply is installed in assembling low pressure held in ring at the scene with dividing plate before low-pressure internal cylinder, and low pressure held in ring is replaced by into corresponding highback The low pressure held in ring of rotor is pressed, low pressure end two-stage dividing plate is pulled down, is changed to the deflector with septalium defencive function, rotor is simultaneously Change high back pressure heat supply rotor into；During non-supplying thermal condition, deflector is removed, low pressure end two-stage dividing plate is installed and with preceding level Four pure condensate With the low pressure held in ring of dividing plate, low-pressure internal cylinder coordinates pure condensate rotor operation.
- 6. electric heating unit heating system according to claim 1, it is characterised in that the first heating system also includes steam turbine Back heating system and condensed water precision processing system, wherein, steam turbine back heating system include 4 low-pressure heaters, 3 High-pressure heater and 2 gland heaters, the delivery port of condenser are connected with two low-pressure heaters connected, by string Condensate is inputted to condensed water precision processing system after two low-pressure heaters of connection, from the condensation of condensed water precision processing system output Water is inputted into two gland heaters being arranged in parallel by pipeline, is passed sequentially through by the condensate exported in gland heater Series connection other two low-pressure heaters and series connection three high-pressure heaters, then condensate export to boiler.
- 7. electric heating unit heating system according to claim 6, it is characterised in that in low-pressure heater and high-pressure heater Between be additionally provided with oxygen-eliminating device.
- 8. electric heating unit heating system according to claim 7, it is characterised in that in the first Steam Side of Condenser housing with after Install tube bank expansion joint between end pipe plate additional, rear hydroecium is equipped with sliding support bearing.
- 9. electric heating unit heating system according to claim 1, it is characterised in that in the first condenser and the second condenser Recirculated water porch be equipped with secondary filter, heat supply network circulating water pipe is provided with heat supply network recirculated water sample connection.
- 10. electric heating unit heating system according to claim 1, it is characterised in that the heat-transfer surface of first condenser Product is 19000m2, the Selection of Tubes in Heat Exchangers TP317L soldering stainless steel straight tubes of the first condenser.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720647727.8U CN206957773U (en) | 2017-06-06 | 2017-06-06 | Electric heating unit heating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720647727.8U CN206957773U (en) | 2017-06-06 | 2017-06-06 | Electric heating unit heating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206957773U true CN206957773U (en) | 2018-02-02 |
Family
ID=61379809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720647727.8U Expired - Fee Related CN206957773U (en) | 2017-06-06 | 2017-06-06 | Electric heating unit heating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206957773U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107191232A (en) * | 2017-06-06 | 2017-09-22 | 大唐东北电力试验研究所有限公司 | Electric heating unit heating system |
-
2017
- 2017-06-06 CN CN201720647727.8U patent/CN206957773U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107191232A (en) * | 2017-06-06 | 2017-09-22 | 大唐东北电力试验研究所有限公司 | Electric heating unit heating system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101967999B (en) | Combined heat and power generation energy saving device using afterheat to supply heat and energy saving method | |
| CN107202355A (en) | High back pressure birotor electric heating unit heating system | |
| CN106894855A (en) | A kind of thermoelectricity decoupling transformation and operation method based on heat source side and heat supply network comprehensive adjustment | |
| CN109139151A (en) | A kind of thermoelectricity decoupled system with heat accumulation | |
| CN206144613U (en) | Thermoelectric decoupling heating system for extracting steam from power station boiler | |
| CN101943435A (en) | Thermoelectricity co-generation energy-saving device for supplying heat by using waste heat and energy-saving method thereof | |
| CN105697075A (en) | Extraction condensing heat supply system additionally provided with non-reheat medium-pressure steam turbine | |
| CN202973061U (en) | Power station engine and boiler integrated cold end comprehensive optimization system | |
| CN106499455A (en) | Combined-cycle power plant's soda pop backheat and fuel heating integrated put forward effect system | |
| CN102147123A (en) | Waste heat recovery type heating system of initial station | |
| CN108443906A (en) | Smoke waste heat utilization system and method based on multiple level with recycling heating cold wind | |
| CN105972681A (en) | Water source heat pump-steam turbine and heat supply network complementary combined heating supply system | |
| CN203731368U (en) | Device for deep recovery of smoke discharge waste heat of waste heat boiler | |
| CN201866830U (en) | Cogeneration energy-saving device utilizing waste heat for supplying heat | |
| CN112833378B (en) | Reheating system capable of improving heat supply capacity | |
| CN206957773U (en) | Electric heating unit heating system | |
| CN206054017U (en) | A kind of Direct Air-cooled Unit exhausted spare heat retracting device | |
| CN204665244U (en) | A kind of association system of phase-change heat-exchanger band heat exchangers for district heating | |
| CN207146488U (en) | High back pressure birotor electric heating unit heating system | |
| CN205664467U (en) | Directly retrieve economizer that power plant's condenser waste heat is used for municipal heat supply | |
| CN208687994U (en) | Split type gas thermal power plant unit | |
| CN104832908B (en) | A kind of association system of phase-change heat-exchanger with heat exchangers for district heating and integrated processes | |
| CN107191232A (en) | Electric heating unit heating system | |
| CN206919053U (en) | A kind of surplus heat collection device for boiler smoke | |
| CN206755307U (en) | Condensing-type low-vacuum cooling circulating water heating installation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180202 Termination date: 20180606 |