CN206905077U - A kind of steam power plant's step heating system - Google Patents
A kind of steam power plant's step heating system Download PDFInfo
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- CN206905077U CN206905077U CN201720492443.6U CN201720492443U CN206905077U CN 206905077 U CN206905077 U CN 206905077U CN 201720492443 U CN201720492443 U CN 201720492443U CN 206905077 U CN206905077 U CN 206905077U
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Abstract
It the utility model is related to a kind of steam power plant's step heating system, including absorption heat pump（11）, hydrophobic heat exchanger（12）, draw gas heat exchanger（13）, hydrophobic circulating pump（14）；The absorption heat pump（11）It is provided with heat source import, hydrophobic outlet, heat supply network water inlet, heat supply network water out, absorption heat pump（11）Heat supply network water out be connected to heat supply network feed pipe（24）, heat supply network feed pipe（24）On be provided with hydrophobic heat exchanger（12）, draw gas heat exchanger（13）；Hydrophobic heat exchanger（12）On be provided with hydrophobic import, hydrophobic outlet, absorption heat pump（11）Pass through hydrophobic circulating pump（14）With hydrophobic heat exchanger（12）Hydrophobic import connection；Draw gas heat exchanger（13）On be provided with heat source import, hydrophobic outlet, draw gas heat exchanger（13）Pass through hydrophobic circulating pump（14）With hydrophobic heat exchanger（12）Hydrophobic import connection.Realize that heating system step heats, reduction can be used and can be lost；Realize it is hydrophobic recycle, improve heat utilization rate.
Description
Technical field
A kind of steam power plant's step heating system is the utility model is related to, belongs to cogeneration of heat and power technical field.
Background technology
Hair changes the energy [2016] 617 " on printing and distributing《Cogeneration of heat and power management method》Notice " require：Strive realizing north
The big-and-middle-sized above city cogeneration of heat and power central heating rate in side reaches more than 60%, and county town cogenerations of heat and power more than 200,000 populations is covered entirely
Lid.This indicates that the development of cogeneration of heat and power will enter a fast-developing period.For current warm extraction for heat supply system come
Say, the hydrophobic heat regenerative system for directly returning to thermoelectricity unit formed after steam heat-exchanging, no which results in hydrophobic heat energy
Utilized to effective, heat energy loss is larger.In addition, the heating steam pressure of existing thermal power plant unit design is 0.2-0.5MPa, and
In actual motion, the latter stage particularly at the beginning of heating, temperature needed for hot net water typically only has 70-90 DEG C or so, is adopted far below design
The heat energy that warm steam provides, there is the very big available loss of energy, and is reclaimed, it is necessary to be set without effective measures at present
A kind of heating system is counted, makes full use of hydrophobic heat energy, while reduces heating just latter stage can use the loss of energy, raising heat utilization rate.
Utility model content
The purpose of this utility model is to overcome above shortcomings in the prior art, and provides a kind of structure design and close
Reason, it is simple in construction, steam power plant's step heating system of heating system heat utilization rate can be improved.
The technical scheme in the invention for solving the above technical problem is：A kind of steam power plant's step heating system is provided,
Including absorption heat pump, hydrophobic heat exchanger, the heat exchanger that draws gas, hydrophobic circulating pump；The absorption heat pump be provided with heat source import,
Hydrophobic outlet, heat supply network water inlet, heat supply network water out, the heat supply network water out of the absorption heat pump are connected to heat supply network feed pipe, heat
Hydrophobic heat exchanger is provided with net feed pipe, draw gas heat exchanger；Be provided with the hydrophobic heat exchanger hydrophobic import, it is hydrophobic go out
Mouthful, the absorption heat pump is connected by the hydrophobic import of hydrophobic circulating pump and hydrophobic heat exchanger；Set on the heat exchanger that draws gas
Heat source import, hydrophobic outlet are equipped with, the heat exchanger that draws gas is connected by hydrophobic circulating pump with the hydrophobic import of hydrophobic heat exchanger.Pass through control
System draw gas heat exchanger switch can realize hot net water by or not by the heat exchanger that draws gas, regulation heat supply network heat supply network feed pipe supplies water
Temperature, realize heating just, intermediary and later stages differential heating, reduction can use can be lost.
No.1 hot net water is provided with a kind of heat supply network feed pipe of steam power plant's step heating system provided by the utility model
Bypass, the No.1 hot net water bypass and are provided with No. nine valves, and the heat supply network water inlet of the hydrophobic heat exchanger passes through No. seven valves
Door is connected to No.1 hot net water and bypasses one end, and the heat supply network water out of the hydrophobic heat exchanger is connected to No.1 heat by No. eight valves
Net water bypasses the other end.By the cooperation of hydrophobic circulating pump, draw gas drain pipe and heat pump drain pipe, by by a heat exchange
Hydrophobic introducing hydrophobic heat exchanger carries out heat exchange again, realizes that hydrophobic heat energy reuses, reduces heat energy loss.
A kind of steam power plant's step heating system provided by the utility model also include heating extraction steam pipe, No.1 suction branch,
Drawn gas drain pipe, and No. two hot net water bypasses are additionally provided with the heat supply network feed pipe；The exchanger heat source inlet that draws gas passes through
No.1 suction branch is connected with heating extraction steam pipe, and No.1 valve is housed on No.1 suction branch；Draw gas the hydrophobic outlet of heat exchanger
It is connected to by the drain pipe that draws gas on hydrophobic circulating pump, No. three valves is housed on the drain pipe that draws gas；The heat of the heat exchanger that draws gas
Net water inlet is connected to No. two hot net waters by No. ten valves and bypasses one end, and the heat supply network water out of the heat exchanger that draws gas is by ten
No.1 valve is connected to No. two hot net water bypass other ends.
A kind of steam power plant's step heating system provided by the utility model also include No. two suction branch, heat pump drain pipe,
Heat supply network return pipe；The hydrophobic outlet of absorption heat pump is connected on hydrophobic circulating pump by the heat pump drain pipe, and heat pump is dredged
No. four valves are provided with water pipe；Absorption heat pump thermal source inlet is connected by No. two suction branch with heating extraction steam pipe, No. two
No. two valves are housed on suction branch；The heat supply network return pipe is connected with absorption heat pump heat supply network water inlet.
A kind of steam power plant's step heating system provided by the utility model also includes periodical feeding pipe, recirculation return pipe；Institute
State periodical feeding pipe to connect by the low-temperature heat source import of No. six valves and absorption heat pump, the recirculation return pipe passes through No. five
The low-temperature heat source of valve and absorption heat pump outlet connection.
Further preferably.
Used valve is respectively provided with regulatory function.
The hydrophobic heat exchanger is board-like water-water heat exchanger, and the flow arrangement pattern of fluid is adverse current in hydrophobic heat exchanger
Arrangement.
The utility model compared with prior art, has advantages below and effect：Realize that heating system step heats, can be poor
It Hua not heat, reduction can be used and can be lost；Realize it is hydrophobic recycle, improve heat utilization rate.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model embodiment.
In figure：11- absorption heat pumps, 12- hydrophobic heat exchangers, 13- draw gas the hydrophobic circulating pump of heat exchanger, 14-；15- heating
Extraction steam pipe, 16- No.1s suction branch, No. bis- suction branch of 17-, 18- draw gas drain pipe, 19- heat pumps drain pipe, 01- circulation supply
Water pipe, 02- recirculation return pipes, 21- heat supply networks return pipe, the bypass of 22- No.1s hot net water, 23- No. bis- hot net water bypasses, 24- heat supply networks
No. six feed pipe, 31- No.1s valve, No. bis- valves of 32-, No. tri- valves of 33-, No. tetra- valves of 34-, No. five valves of 35-, 36- valves
Door, ten No. two No. seven valves of 37-, No. eight valves of 38-, No. nine valves of 39-, No. ten valves of 40-, 41- ride on Bus No. 11s valve, 42- valves
Door.
Embodiment
Below in conjunction with the accompanying drawings and the utility model is described in further detail by embodiment, and following examples are pair
It is of the present utility model explanation and the utility model is not limited to following examples.
Embodiment.
Referring to Fig. 1, the embodiment is related to a kind of steam power plant's step heating system, and it includes：Absorption heat pump 11, hydrophobic change
Hot device 12, the heat exchanger 13 that draws gas, hydrophobic circulating pump 14；The heating extraction steam pipe 15 is respectively by No.1 suction branch 16, two
Suction branch 17 is connected with the heat exchanger 13 that draws gas, absorption heat pump 11, and 31, No. two valves of No.1 valve are housed on branch pipe respectively
Door 32；The low-temperature heat source import of absorption heat pump 11 is connected with periodical feeding pipe 01, and in the low-temperature heat source of absorption heat pump 11
Entrance is equipped with No. six valves 36；The low-temperature heat source outlet of absorption heat pump 11 is connected with recirculation return pipe 02, and absorption
The low-temperature heat source exit of heat pump 11 is equipped with No. five valves 35；The hydrophobic import of hydrophobic heat exchanger 12 by draw gas drain pipe 18 with
The heat exchanger 13 that draws gas connects, and drawing gas No. three valves 33 is housed on drain pipe 18；The hydrophobic import of hydrophobic heat exchanger 12 also passes through
Heat pump drain pipe 19 is connected with absorption heat pump 11, and No. four valves 34 are housed on the pipeline of heat pump drain pipe 19；Hydrophobic heat exchange
The hydrophobic import of device 12 is equipped with hydrophobic circulating pump 14；Heat supply network return pipe 21 is connected with absorption heat pump 11；Hydrophobic heat exchanger 12
Hot net water import and export is connected with absorption heat pump 11, the heat exchanger 13 that draws gas respectively, and the hot net water of hydrophobic heat exchanger 12 enter,
37, No. eight valves 38 of No. seven valves are respectively provided with outlet；Hydrophobic heat exchanger 12 is provided with No.1 hot net water bypass 22, and one
No. nine valves 39 are housed in number hot net water bypass 22；The heat supply network water out of heat exchanger 13 of drawing gas is connected with heat supply network feed pipe 24, and
No. ten valves 40, ride on Bus No. 11 valve 41 are respectively provided with the hot net water import and export for the heat exchanger 13 that draws gas；The heat exchanger 13 that draws gas is set
There are No. two hot net water bypasses 23, and ten No. two valves 42 are housed in bypass；The valve used in the present embodiment is respectively provided with regulation
Function.
In the present embodiment, hydrophobic heat exchanger 12 is board-like water-water heat exchanger, the flow arrangement of fluid in hydrophobic heat exchanger 12
Pattern is counter-flow arrangement.
The adjusting method that the embodiment is related to is as follows.
The latter stage at the beginning of heating, when thermic load needed for heat supply is smaller：
No.1 valve 31, three valve 33, ten valve 40, ride on Bus No. 11 valve 41 are closed, the heat exchanger 13 that draws gas is not put into
Operation；
No. two 35, No. six valves 36 of valve of valve 34, five of valve 32, four are opened, hot net water is through heat supply network return pipe 21
It is introduced into absorption heat pump 11 and obtains primary heating, then opens and adjust No. seven valves 39 of valve 38, nine of valve 37, eight
Aperture, regulation into hydrophobic heat exchanger 12 heat supply network water-carrying capacity, by the hot net water of two level heating with by the No.1 hot net water
The hot net water mixing of the primary heating on road 22, opens ten No. two valves 42, and mixed hot net water bypasses by No. two hot net waters
23, to heat supply network feed pipe 24, give heat user.
In heating high and cold phase phase, when thermic load needed for heat supply is larger：
Open No.1 valve 31, three valve 33, ten valve 40, ride on Bus No. 11 valve 41, the heat exchanger 13 that draws gas input fortune
OK；
Now, No. two 35, No. six valves 36 of valve of valve 34, five of valve 32, four are opened, hot net water is introduced into absorption
Formula heat pump 11 obtains primary heating, then opens and adjusts the aperture of No. seven valves 37, No. eight valves, 38, No. nine valves 39, adjusts
Section enters the heat supply network water-carrying capacity of hydrophobic heat exchanger 12, by the hot net water that two level heats with adding from the primary of No.1 hot net water bypass 22
The hot net water mixing of heat, ten No. two valves 42 are closed, mixed hot net water enters the heat exchanger 13 that draws gas and obtains three-level heating, so
Afterwards heat user is given by heat supply network feed pipe.
In the present embodiment, adjusting method is in concrete operations, it then follows principle：Preferentially heated using absorption heat pump 11
Hot net water, hot net water secondly is heated using hydrophobic heat exchanger 12, finally heat hot net water using the heat exchanger 13 that draws gas.
Furthermore, it is necessary to illustrate, the specific embodiment described in this specification, the shape of its parts and components, it is named
Title etc. can be different, and the above content described in this specification is only to the utility model structure example explanation.
The equivalence changes or simple change that all construction, feature and the principle described according to the utility model patent design are done, are wrapped
Include in the protection domain of the utility model patent.The utility model person of ordinary skill in the field can be to described
Specific embodiment is made various modifications or supplement or substituted using similar mode, without departing from knot of the present utility model
Structure surmounts scope defined in the claims, all should belong to the scope of protection of the utility model.
Claims (7)
- A kind of 1. steam power plant's step heating system, it is characterised in that：Including absorption heat pump（11）, hydrophobic heat exchanger（12）, take out Vapour heat exchanger（13）, hydrophobic circulating pump（14）；The absorption heat pump（11）It is provided with heat source import, hydrophobic outlet, hot net water Import, heat supply network water out, the absorption heat pump（11）Heat supply network water out be connected to heat supply network feed pipe（24）, heat supply network feed pipe （24）On be provided with hydrophobic heat exchanger（12）, draw gas heat exchanger（13）；The hydrophobic heat exchanger（12）On be provided with hydrophobic import, Hydrophobic outlet, the absorption heat pump（11）Pass through hydrophobic circulating pump（14）With hydrophobic heat exchanger（12）Hydrophobic import connection； The heat exchanger that draws gas（13）On be provided with heat source import, hydrophobic outlet, draw gas heat exchanger（13）Pass through hydrophobic circulating pump（14） With hydrophobic heat exchanger（12）Hydrophobic import connection.
- 2. steam power plant's step heating system according to claim 1, it is characterised in that：The heat supply network feed pipe（24）On set It is equipped with the bypass of No.1 hot net water（22）, the No.1 hot net water bypass（22）On be provided with No. nine valves（39）, it is described hydrophobic to change Hot device（12）Heat supply network water inlet pass through No. seven valves（37）It is connected to the bypass of No.1 hot net water（22）One end, the hydrophobic heat exchange Device（12）Heat supply network water out pass through No. eight valves（38）It is connected to the bypass of No.1 hot net water（22）The other end.
- 3. steam power plant's step heating system according to claim 1, it is characterised in that：Also include heating extraction steam pipe（15）、 No.1 suction branch（16）, draw gas drain pipe（18）, the heat supply network feed pipe（24）On be additionally provided with the bypass of No. two hot net waters （23）；The heat exchanger that draws gas（13）Thermal source inlet passes through No.1 suction branch（16）With heating extraction steam pipe（15）Connection, No.1 Suction branch（16）It is upper that No.1 valve is housed（31）；Draw gas heat exchanger（13）Hydrophobic outlet pass through the drain pipe that draws gas（18）Connection In hydrophobic circulating pump（14）On, draw gas drain pipe（18）It is upper that No. three valves are housed（33）；The heat exchanger that draws gas（13）Heat supply network Water inlet passes through No. ten valves（40）It is connected to No. two hot net water bypasses（23）One end, the heat exchanger that draws gas（13）Hot net water Outlet passes through ride on Bus No. 11 valve（41）It is connected to No. two hot net water bypasses（23）The other end.
- 4. steam power plant's step heating system according to claim 3, it is characterised in that：Also include No. two suction branch （17）, heat pump drain pipe（19）, heat supply network return pipe（21）；The absorption heat pump（11）Hydrophobic outlet is hydrophobic by the heat pump Pipe（19）It is connected to hydrophobic circulating pump（14）On, heat pump drain pipe（19）On be provided with No. four valves（34）；Absorption heat pump （11）Thermal source inlet passes through No. two suction branch（17）With heating extraction steam pipe（15）Connection, No. two suction branch（17）It is upper to be equipped with two Number valve（32）；The heat supply network return pipe（21）With absorption heat pump（11）Heat supply network water inlet connects.
- 5. steam power plant's step heating system according to claim 1, it is characterised in that：Also include periodical feeding pipe（01）、 Recirculation return pipe（02）；The periodical feeding pipe（01）Pass through No. six valves（36）With absorption heat pump（11）Low-temperature heat source enter Mouth connection, the recirculation return pipe（02）Pass through No. five valves（35）With absorption heat pump（11）Low-temperature heat source outlet connection.
- 6. according to steam power plant's step heating system described in 2-5 any claims, it is characterised in that：The valve uses Adjustable gate.
- 7. steam power plant's step heating system according to claim 1, it is characterised in that：The hydrophobic heat exchanger（12）For plate Formula water-water heat exchanger, hydrophobic heat exchanger（12）The flow arrangement pattern of interior fluid is counter-flow arrangement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720492443.6U CN206905077U (en) | 2017-05-05 | 2017-05-05 | A kind of steam power plant's step heating system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720492443.6U CN206905077U (en) | 2017-05-05 | 2017-05-05 | A kind of steam power plant's step heating system |
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| CN206905077U true CN206905077U (en) | 2018-01-19 |
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| CN201720492443.6U Active CN206905077U (en) | 2017-05-05 | 2017-05-05 | A kind of steam power plant's step heating system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111780195A (en) * | 2020-05-18 | 2020-10-16 | 华电电力科学研究院有限公司 | Supercritical unit improved heat supply network drainage system and working method thereof |
| CN113137652A (en) * | 2021-04-02 | 2021-07-20 | 华电电力科学研究院有限公司 | Deep energy-saving comprehensive utilization and recovery system and method for drainage waste heat of heat supply initial station |
| CN114576688A (en) * | 2021-12-28 | 2022-06-03 | 温州宏泽热电股份有限公司 | Comprehensive cascade utilization system for waste heat of thermal power plant |
-
2017
- 2017-05-05 CN CN201720492443.6U patent/CN206905077U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111780195A (en) * | 2020-05-18 | 2020-10-16 | 华电电力科学研究院有限公司 | Supercritical unit improved heat supply network drainage system and working method thereof |
| CN111780195B (en) * | 2020-05-18 | 2021-09-03 | 华电电力科学研究院有限公司 | Supercritical unit improved heat supply network drainage system and working method thereof |
| CN113137652A (en) * | 2021-04-02 | 2021-07-20 | 华电电力科学研究院有限公司 | Deep energy-saving comprehensive utilization and recovery system and method for drainage waste heat of heat supply initial station |
| CN114576688A (en) * | 2021-12-28 | 2022-06-03 | 温州宏泽热电股份有限公司 | Comprehensive cascade utilization system for waste heat of thermal power plant |
| CN114576688B (en) * | 2021-12-28 | 2023-12-05 | 温州宏泽热电股份有限公司 | Waste heat comprehensive cascade utilization system of thermal power plant |
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