CN218119858U - High-parameter industrial heating system - Google Patents
High-parameter industrial heating system Download PDFInfo
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- CN218119858U CN218119858U CN202221249738.8U CN202221249738U CN218119858U CN 218119858 U CN218119858 U CN 218119858U CN 202221249738 U CN202221249738 U CN 202221249738U CN 218119858 U CN218119858 U CN 218119858U
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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
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- 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
The present disclosure relates to a high parameter industrial heating system, comprising: the steam supply pipe is divided into a steam inlet section for high-pressure steam to enter and at least two heat supply sections communicated with the steam inlet section, and each heat supply section is provided with a steam-water heat exchanger for releasing heat by using the high-pressure steam as a heat source; and the water supply pipe is communicated with the steam-water heat exchangers on the plurality of heat supply sections and is used for heating water in the water supply pipe, and the water outlet end of the water supply pipe is communicated with a heat user so as to send the heated water to the heat user. According to the steam supply system, at least two heat supply sections are arranged on the steam supply pipe for partial pressure, and high-pressure steam is divided into multiple paths, so that the pressure of the heat supply system is reduced, and the overpressure of the heat supply system is avoided; every supplies heat on the section all to be equipped with vapour and water heat exchanger, releases heat through a plurality of vapour and water heat exchangers, on the one hand can make full use of heat source, on the other hand can avoid heating system overtemperature.
Description
Technical Field
The disclosure relates to the technical field of heating systems, in particular to a high-parameter industrial heating system.
Background
National policies require decommissioning small units and decentralized small boilers to develop cogeneration. The large-scale straight-condensing thermal power generating unit is transformed to realize cogeneration, so that the energy-saving and environment-friendly policy is met, and the win-win situation between enterprises and thermal power plants is facilitated.
When the high-temperature high-pressure steam for power generation is used for heat supply, the danger that a heat supply system faces over-temperature and over-pressure can be caused due to high pressure and high temperature, the high-temperature high-pressure steam can only be utilized after temperature and pressure reduction, but the temperature and pressure reduction can not only cause pressure and heat waste, but also can cause insufficient heat supply capacity, so that the heat supply capacity is limited.
SUMMERY OF THE UTILITY MODEL
It is an object of the present disclosure to provide a high-parameter industrial heating system that can solve the above-mentioned problems.
In order to achieve the above object, the present disclosure provides a high parameter industrial heating system, including: the steam supply pipe is divided into a steam inlet section for high-pressure steam to enter and at least two heat supply sections communicated with the steam inlet section, and each heat supply section is provided with a steam-water heat exchanger for releasing heat by using the high-pressure steam as a heat source; and the water supply pipe is communicated with the steam-water heat exchangers on the plurality of heat supply sections and used for heating water in the water supply pipe, and the water outlet end of the water supply pipe is communicated with a heat user so as to deliver the heated water to the heat user.
Optionally, the heat supply section comprises a first heat supply section and a second heat supply section, steam inlets of the first heat supply section and the second heat supply section are communicated with a steam outlet of the steam inlet section, and the steam outlet is communicated with a waste heat recovery device.
Optionally, the steam-water heat exchanger comprises a superheated steam heater and a low-temperature steam-water heater which are sequentially arranged from the steam inlet end to the steam outlet end of the first heat supply section, and a hot water circulating heater arranged on the second heat supply section.
Optionally, the residual heat recovery device is configured as an oxygen remover.
Optionally, the water supply pipe includes a water supply pipe communicating with the hot user and a hot water circulation pipe connected to the water supply pipe in a circulation manner for reheating water in the water supply pipe.
Optionally, the water outlet end of the water supply pipeline sequentially passes through the low-temperature steam-water heater and the superheated steam heater and is communicated with the heat user.
Optionally, a water inlet end of the hot water circulation pipeline is communicated with the bottom of a steam drum arranged on the water supply pipeline, a water outlet end of the hot water circulation pipeline is communicated with the steam drum through the hot water circulation heater, and a circulation pump is arranged on the hot water circulation pipeline.
Optionally, a steam extraction gate valve for controlling the on-off of the steam inlet section and a first steam extraction regulating valve for regulating the steam inlet amount are arranged on the steam inlet section, and a second steam extraction regulating valve for regulating the steam inlet amount is arranged on the second heat supply section.
Optionally, a water supply gate valve for controlling the on-off of the water supply pipeline and a water supply adjusting valve for adjusting the water supply quantity are arranged on the water supply pipeline.
Optionally, the water inlet end of the water supply pipe is communicated with the high-pressure heater.
According to the technical scheme, the steam supply pipe is provided with at least two heat supply sections for pressure division, and high-pressure steam is divided into multiple paths, so that the pressure of a heat supply system is reduced, and the overpressure of the heat supply system is avoided; every supplies heat on the section all to be equipped with vapour and water heat exchanger, releases heat through a plurality of vapour and water heat exchangers, on the one hand can make full use of heat source, on the other hand can avoid heating system overtemperature.
Additional features and advantages of the disclosure will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:
fig. 1 is a system connection diagram of a high parameter industrial heating system according to the present disclosure.
Description of the reference numerals
1. A steam inlet section; 2. a first heat supply section; 3. a second heat supply section; 4. a superheated steam heater; 5. a low temperature steam water heater; 6. a steam drum; 7. a hot water circulation heater; 8. a deaerator; 9. a high pressure heater; 10. a water supply gate valve; 11. a water supply regulating valve; 12. a water supply pipe; 13. a hot water circulation pipe; 14. a circulation pump; 15. a hot user; 16. a steam extraction gate valve; 17. a first steam extraction regulating valve; 18. and a second steam extraction regulating valve.
Detailed Description
The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.
In the present disclosure, the use of directional terms such as "inner and outer" refers to inner and outer relative to the profile of the component or structure itself, unless stated to the contrary. In addition, it should be noted that terms such as "first", "second", and the like are used to distinguish one element from another, and have no order or importance. In addition, in the description with reference to the drawings, the same reference numerals in different drawings denote the same elements.
As shown in fig. 1, the present disclosure provides a high parameter industrial heating system, comprising: the steam supply pipe is divided into a steam inlet section 1 for high-pressure steam to enter and at least two heat supply sections communicated with the steam inlet section 1, the high-pressure steam is extracted from a reheat steam pipeline of the thermal power generating unit and is a steam source after a high-pressure cylinder of the steam turbine does work, the heat economy of cogeneration is better, the reheat steam pipeline refers to a pipeline which is connected to an inlet of a combined steam valve of a medium-pressure cylinder of the steam turbine from outlets of header tanks at two sides of a boiler reheater, and each heat supply section is provided with a steam-water heat exchanger which utilizes the high-pressure steam as a heat source to release heat; and the water supply pipe is communicated with the steam-water heat exchangers on the plurality of heat supply sections and used for heating water in the water supply pipe, the water outlet end of the water supply pipe is communicated with the heat consumer 15 to send the heated water to the heat consumer 15, and the heat consumer 15 is a unit using hot water, such as a residential building using warm air.
According to the steam supply system, at least two heat supply sections are arranged on a steam supply pipe for partial pressure, and high-pressure steam is divided into multiple paths, so that the pressure of the heat supply system is reduced, and the overpressure of the heat supply system is avoided; all be equipped with steam-water heat exchanger on every heat supply section, release heat through a plurality of steam-water heat exchanger, on the one hand can make full use of heat source, on the other hand can avoid heating system overtemperature.
As an alternative embodiment, as shown in fig. 1, the heat supply section includes a first heat supply section 2 and a second heat supply section 3, steam inlets of the first heat supply section 2 and the second heat supply section 3 are both communicated with a steam outlet of the steam inlet section 1, and the steam outlet is both communicated with the waste heat recovery device. The heat supply section can be divided into multiple paths, such as two paths, three paths, four paths or more paths, the heat supply section is divided into two paths in the embodiment, high-pressure steam enters the steam inlet section 1 of the steam supply pipe and then is divided into two paths to respectively enter the first heat supply section 2 and the second heat supply section 3, so that the pressure of the heat supply system is reduced, the overpressure of the heat supply system is avoided, and the high-pressure steam enters the waste heat recovery device for waste heat recovery after being released through the steam-water heat exchangers.
Optionally, the steam-water heat exchanger includes an superheated steam heater 4 and a low-temperature steam-water heater 5 sequentially arranged from the steam inlet end to the steam outlet end of the first heat supply section 2, and a hot water circulating heater 7 arranged on the second heat supply section 3, one path of high-pressure steam enters the superheated steam heater 4 to perform first heat release, the reheated steam released by the hot steam heater 4 enters the low-temperature steam-water heater 5 to perform second heat release, the other path of reheated steam enters the hot water circulating heater 7 to perform heat release, the number of the steam-water heat exchangers on each heat supply section can be set as required, at least one steam-water heat exchanger is arranged on each heat supply section, heat release is performed through a plurality of steam-water heat exchangers, on one hand, a heat source can be fully utilized, and on the other hand, over-temperature of a heat supply system can be avoided.
In the embodiment, the waste heat recovery device is configured as a deaerator 8, the deaerator 8 heats the feed water to a saturation temperature corresponding to the operating pressure of the deaerator, oxygen and other gases dissolved in the feed water are removed, and corrosion of the equipment is prevented and reduced.
As an alternative embodiment, as shown in fig. 1, the water supply pipe includes a water supply pipe 12 communicating with a heat user 15 and a hot water circulation pipe 13 connected to the water supply pipe 12 in a circulation manner for reheating water in the water supply pipe 12. The water supply pipe 12 is connected with a heat consumer 15 to provide hot water for the heat consumer 15, and the hot water circulation pipe 13 heats the hot water in the water supply pipe 12 again to meet the requirements of the heat consumer 15 and also can fully utilize the heat of the high-pressure steam.
Optionally, the water outlet end of the water supply pipe 12 passes through the low-temperature steam-water heater 5 and the superheated steam heater 4 in sequence and is communicated with the heat consumer 15. Water in the water supply pipeline 12 is primarily heated by the low-temperature steam-water heater 5, secondarily heated by the hot steam heater 4 and then sent to the hot user 15, and the hot water is heated twice to reach higher temperature.
Wherein, the water supply pipe 12 is provided with a water supply gate valve 10 for controlling the on-off of the water supply pipe 12 and a water supply adjusting valve 11 for adjusting the water supply amount, and the water supply amount of the water supply pipe 12 is adjusted according to the water consumption and the high-pressure steam amount.
Optionally, a water inlet end of the hot water circulation pipeline 13 is communicated with the bottom of the steam drum 6 arranged on the water supply pipeline 12, a water outlet end is communicated with the steam drum 6 through the hot water circulation heater 7, and a circulation pump 14 is arranged on the hot water circulation pipeline 13. The steam drum 6 is a cylindrical pressure container which is used for performing steam-water separation and steam purification in the water pipe boiler, forms a water circulation loop and stores boiler water, and is mainly used for receiving incoming water, performing steam-water separation and supplying water to the circulation loop and conveying saturated steam to the superheated steam heater 4. Water in the water supply pipeline 12 enters the steam drum 6 after being heated by the low-temperature steam-water heater 5, hot water in the steam drum 6 enters the hot water circulating heater 7 through the circulating pump 14 to absorb heat and then returns to the steam drum 6 to form saturated steam, and the saturated steam in the steam drum 6 enters the superheated steam heater 4 and is heated into high-pressure industrial steam meeting the requirements of the hot users 15 to be supplied to the hot users 15. In another embodiment, one water supply pipe may be provided, and the low-temperature steam-water heater 5, the superheated steam heater 4, and the hot-water circulation heater 7 may be connected to the water supply pipe to directly heat the hot water in the water supply pipe three times.
As an alternative embodiment, as shown in fig. 1, the steam inlet section 1 is provided with a steam extraction gate valve 16 for controlling the on-off of the steam inlet section 1 and a first steam extraction regulating valve 17 for regulating the steam inlet amount, and the second heat supply section 3 is provided with a second steam extraction regulating valve 18 for regulating the steam inlet amount. The extraction gate valve 16 is used for controlling the integral switch of the steam inlet section 1, the first extraction regulating valve 17 is used for controlling the total steam inlet amount, and the second extraction regulating valve 18 is used for regulating the steam amount entering the first heat supply section 2 and the second heat supply section 3, namely, the steam inlet amount of the second heat supply section 3 is small, and the steam inlet amount of the first heat supply section 2 is large, and vice versa. In other embodiments, the second extraction steam control valve 18 can also be arranged on the first heat supply stage 2.
As an alternative embodiment, as shown in fig. 1, the water inlet end of the water supply pipe is communicated with the high pressure heater 9. The effluent of the high-pressure heater 9 is introduced into the system, so that the characteristic of high temperature of the effluent can be utilized, the use amount of high-pressure steam is reduced, and the steam pressure generated by the system is wider in range.
The working principle is as follows: high-pressure steam is extracted from a reheating steam pipeline of the thermal power generating unit, and is divided into two paths after passing through a steam extraction gate valve 16 and a first steam extraction regulating valve 17, and the two paths of high-pressure steam respectively enter a first heat supply section 2 and a second heat supply section 3, wherein the first steam extraction regulating valve 17 regulates the steam extraction amount. One path of high-pressure steam enters the superheated steam heater 4 to release heat for the first time, the reheated steam released by the superheated steam heater 4 enters the low-temperature steam-water heater 5 to release heat for the second time, and the steam after heat release is conveyed to the deaerator 8 to recover the heat of redundant steam; the other path of high-pressure steam enters the hot water circulating heater 7 through the second steam extraction and adjustment valve 18 to release heat, and then is conveyed to the deaerator 8 to recover the heat of the residual steam. High-pressure industrial steam which is required by a hot user 15 and is heated to be high-pressure industrial steam which meets the requirement of the hot user 15 is supplied to the hot user 15; hot water in the steam drum 6 enters the hot water circulating heater 7 through the circulating pump 14 to absorb heat and then returns to the steam drum 6 to form saturated steam.
The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.
It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various combinations that are possible in the present disclosure are not described again.
In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.
Claims (10)
1. A high parameter industrial heating system, comprising:
the steam supply pipe is divided into a steam inlet section for high-pressure steam to enter and at least two heat supply sections communicated with the steam inlet section, and each heat supply section is provided with a steam-water heat exchanger for releasing heat by using the high-pressure steam as a heat source; and
and the water supply pipe is communicated with the steam-water heat exchangers on the heat supply sections and used for heating water in the water supply pipe, and the water outlet end of the water supply pipe is communicated with a heat user so as to deliver the heated water to the heat user.
2. The high parameter industrial heating system according to claim 1, wherein the heating section comprises a first heating section and a second heating section, steam inlets of the first heating section and the second heating section are both communicated with a steam outlet of the steam inlet section, and the steam outlets are both communicated with a waste heat recovery device.
3. The high-parameter industrial heating system according to claim 2, wherein the steam-water heat exchanger comprises a superheated steam heater and a low-temperature steam-water heater which are sequentially arranged from the steam inlet end to the steam outlet end of the first heating section, and a hot water circulating heater arranged on the second heating section.
4. A high parameter industrial heating system according to claim 2, wherein the waste heat recovery device is configured as an oxygen scavenger.
5. The high parameter industrial heating system according to claim 3, wherein the water supply pipe includes a water supply pipe communicating with the heat consumer and a hot water circulation pipe circularly connected with the water supply pipe for reheating water in the water supply pipe.
6. The high parameter industrial heating system of claim 5, wherein the water outlet end of the water supply pipe passes through the low temperature steam-water heater and the superheated steam heater in sequence and is in communication with the heat consumer.
7. The high parameter industrial heating system according to claim 5, wherein a water inlet end of the hot water circulation pipe is communicated with a bottom of a steam drum arranged on the water supply pipe, a water outlet end is communicated with the steam drum through the hot water circulation heater, and a circulation pump is arranged on the hot water circulation pipe.
8. The high parameter industrial heating system according to claim 2, wherein a steam extraction gate valve for controlling the on-off of the steam inlet section and a first steam extraction regulating valve for regulating the steam inlet amount are provided on the steam inlet section, and a second steam extraction regulating valve for regulating the steam inlet amount is provided on the second heating section.
9. The high parameter industrial heating system according to claim 5, wherein the water supply pipe is provided with a water supply gate valve for controlling on/off of the water supply pipe and a water supply adjusting valve for adjusting a water supply amount.
10. A high parameter industrial heating system according to any one of claims 1 to 9, wherein the water inlet end of the water supply pipe is in communication with the high pressure heater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221249738.8U CN218119858U (en) | 2022-05-20 | 2022-05-20 | High-parameter industrial heating system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221249738.8U CN218119858U (en) | 2022-05-20 | 2022-05-20 | High-parameter industrial heating system |
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| Publication Number | Publication Date |
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| CN218119858U true CN218119858U (en) | 2022-12-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202221249738.8U Active CN218119858U (en) | 2022-05-20 | 2022-05-20 | High-parameter industrial heating system |
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- 2022-05-20 CN CN202221249738.8U patent/CN218119858U/en active Active
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