CN211372757U - Steam and hot water linkage generating system - Google Patents
Steam and hot water linkage generating system Download PDFInfo
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- CN211372757U CN211372757U CN201921963366.3U CN201921963366U CN211372757U CN 211372757 U CN211372757 U CN 211372757U CN 201921963366 U CN201921963366 U CN 201921963366U CN 211372757 U CN211372757 U CN 211372757U
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Abstract
The utility model relates to the technical field of heat pumps, and discloses a steam and hot water linkage generating system, which comprises a carbon dioxide heat pump system and a steam generating system; the working medium of the carbon dioxide heat pump system is carbon dioxide, the carbon dioxide heat pump system comprises an air cooler, and the air cooler is connected with a water inlet pipeline of the steam generation system to exchange heat. The embodiment of the utility model provides a pair of steam and hot water linkage generating system adopts carbon dioxide heat pump system as the heat source, and the water source in the air cooler department heats the water intake pipe, and the carbon dioxide heat pump can provide the temperature higher than traditional heat pump, improves the temperature that the water source heating reaches to reduce the energy consumption that produces steam, raise the efficiency.
Description
Technical Field
The utility model relates to a heat pump technology field especially relates to a steam and hot water linkage generating system.
Background
High-temperature steam and hot water are the most commonly used heat media in industries such as industry, agriculture, commerce, medicine, food and the like. At present, high-temperature steam and hot water are mainly generated by an oil-fired and coal-fired boiler, so that the energy consumption is high, and the environmental pollution is also high. With the increasing promotion of ecological civilization construction, the traditional oil-fired and coal-fired boiler is necessarily eliminated, so that the development and utilization of clean energy, such as electric power and the like, are favored by heat energy users. The heat pump utilizes the latent heat of phase change of the working medium of the heat pump, and can generate a large amount of high-quality heat energy with the minimum electric power cost.
The existing heat pump steam unit is completed by adopting an electric auxiliary heating mode, the sensible heat heating in the early stage is completed by a conventional heat pump, most of the sensible heat is only heated to about 70 ℃, the high-temperature stage in the later stage and a large amount of latent heat required by phase change evaporation are completed by electric auxiliary heating, the energy consumption is high, and the efficiency is low.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a steam and hot water linkage generating system for it is limited to solve or partial solution current heat pump set heating temperature, produces the great problem of steam energy consumption.
The embodiment of the utility model provides a steam and hot water linkage generating system, which comprises a carbon dioxide heat pump system and a steam generating system; the working medium of the carbon dioxide heat pump system is carbon dioxide, the carbon dioxide heat pump system comprises an air cooler, and the air cooler is connected with a water inlet pipeline of the steam generation system to exchange heat.
On the basis of the scheme, the carbon dioxide heat pump system further comprises a carbon dioxide compressor, a throttle valve and an evaporator; the carbon dioxide compressor, the air cooler, the throttle valve and the evaporator are sequentially connected to form a loop.
On the basis of the scheme, the carbon dioxide heat pump system further comprises a heat regenerator, and an outlet pipeline of the air cooler and an inlet pipeline of the carbon dioxide compressor simultaneously flow through the heat regenerator to exchange heat.
On the basis of the scheme, a gas-liquid separator is arranged between the evaporator and the carbon dioxide compressor in series, and an inlet pipeline of the carbon dioxide compressor is connected with a gas outlet of the gas-liquid separator.
On the basis of the scheme, a liquid storage device is connected between the throttle valve and the evaporator in series, and the evaporator is connected with the bottom of the liquid storage device.
On the basis of the scheme, the top of the liquid storage device is communicated with an inlet pipeline of the carbon dioxide compressor through a pipeline; and the liquid outlet of the gas-liquid separator is connected with the liquid storage device.
On the basis of the scheme, a drying filter is arranged between the air cooler and the throttling valve in series.
On the basis of the scheme, a one-way valve and an oil separator are arranged between the carbon dioxide compressor and the air cooler in series.
On the basis of the scheme, the steam generation system further comprises a flash tank and a steam compressor, the water inlet pipeline is connected with the flash tank, the top of the flash tank is connected with the steam compressor, the outlet of the steam compressor is connected with the steam pipeline, and the bottom of the flash tank is connected with the hot water pipeline.
On the basis of the scheme, the steam generation system further comprises a water replenishing pipeline, the water vapor compressor is connected with the water replenishing pipeline, and a water replenishing pump is arranged on the water replenishing pipeline.
The embodiment of the utility model provides a pair of steam and hot water linkage generating system adopts carbon dioxide heat pump system as the heat source, and the water source in the air cooler department heats the water intake pipe, and the carbon dioxide heat pump can provide the temperature higher than traditional heat pump, improves the temperature that the water source heating reaches to reduce the energy consumption that produces steam, raise the efficiency.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic view of a steam and hot water linkage generating system according to an embodiment of the present invention.
Description of reference numerals:
wherein, 1, a throttle valve; 2. a reservoir; 3. an evaporator; 4. a gas-liquid separator; 5. a carbon dioxide compressor; 6. a one-way valve; 7. an oil separator; 8. an air cooler; 9. a water inlet pipeline; 10. a flash tank; 11. a hot water pipeline; 12. a water vapor compressor; 13. a steam line; 14. a water replenishing pump; 15. a feed pump; 16. a heat regenerator; 17. and drying the filter.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The embodiment of the utility model provides a steam and hot water linkage generating system, refer to fig. 1, this system includes carbon dioxide heat pump system and steam generating system; the working medium of the carbon dioxide heat pump system is carbon dioxide, the carbon dioxide heat pump system comprises an air cooler 8, and the air cooler 8 is connected with a water inlet pipeline 9 of the steam generation system for heat exchange.
According to the steam and hot water linkage generating system provided by the embodiment, the carbon dioxide heat pump system is used as a heat source, a water source in the water inlet pipeline 9 is heated at the air cooler 8, the carbon dioxide heat pump can provide higher temperature than a traditional heat pump, the temperature reached by heating the water source is increased, the energy consumption for generating steam is reduced, and the efficiency is improved.
On the basis of the above embodiment, further, the carbon dioxide heat pump system further includes a carbon dioxide compressor 5, a throttle valve 1 and an evaporator 3; the carbon dioxide compressor 5, the air cooler 8, the throttle valve 1 and the evaporator 3 are connected in sequence to form a loop. The outlet of the carbon dioxide compressor 5 is connected with the inlet of the air cooler 8, the outlet of the air cooler 8 is connected with the throttle valve 1, the outlet of the throttle valve 1 is connected with the evaporator 3, and the outlet of the evaporator 3 is connected with the inlet of the carbon dioxide compressor 5.
The carbon dioxide heat pump system cools and releases heat at the air cooler 8 and evaporates at the evaporator 3. And a cold source can be generated at the evaporator 3, so that the application diversity of the whole system is improved.
On the basis of the above embodiment, further, the carbon dioxide heat pump system further includes a heat regenerator 16, and the outlet pipeline of the air cooler 8 and the inlet pipeline of the carbon dioxide compressor 5 simultaneously flow through the heat regenerator 16 for heat exchange. The carbon dioxide at the outlet of the air cooler 8 still has a certain temperature, and the carbon dioxide entering the compressor can be heated and heated by utilizing the part of heat at the heat regenerator 16 through heat exchange, so that the reduction of the energy consumption of the compressor is facilitated, the energy consumption is reduced, and the energy utilization rate is improved.
In addition to the above embodiments, a gas-liquid separator 4 is further provided in series between the evaporator 3 and the carbon dioxide compressor 5, and an inlet pipeline of the carbon dioxide compressor 5 is connected to a gas outlet of the gas-liquid separator 4. Set up vapour and liquid separator 4, separate the gas-liquid two attitude of the carbon dioxide that comes out from evaporimeter 3, introduce gaseous carbon dioxide in carbon dioxide compressor 5, can avoid the carbon dioxide of liquid to get into the compressor and influence the normal operating of compressor, be favorable to guaranteeing carbon dioxide heat pump system's smooth operation, raise the efficiency.
On the basis of the above embodiment, further, a liquid reservoir 2 is arranged in series between the throttle valve 1 and the evaporator 3, and the evaporator 3 is connected with the bottom of the liquid reservoir 2. The liquid storage device 2 separates the gas-liquid state of the carbon dioxide flowing out from the throttle valve 1, and introduces the liquid carbon dioxide into the evaporator 3, thereby being beneficial to ensuring the evaporation efficiency of the evaporator 3 and ensuring the smooth and efficient operation of the system.
On the basis of the above embodiment, further, the top of the liquid reservoir 2 is communicated with the inlet pipeline of the carbon dioxide compressor 5 through a pipeline; the liquid outlet of the gas-liquid separator 4 is connected to the liquid reservoir 2. The carbon dioxide flowing out of the throttle valve 1 may have part of the carbon dioxide in gaseous form, and in the liquid reservoir 2, the carbon dioxide in liquid form is stored at the bottom and the carbon dioxide in gaseous form is accumulated at the top. Gaseous carbon dioxide can be directly introduced into the air inlet pipeline of the carbon dioxide compressor 5 and sent into the compressor for temperature and pressure rise.
Set up reservoir 2, distinguish the processing from the gas-liquid two attitude of the carbon dioxide of choke valve 1 outflow, compare that the carbon dioxide of choke valve 1 outflow is whole directly to be let in evaporimeter 3, can improve the heat transfer coefficient of carbon dioxide liquid film and evaporimeter wall, be favorable to practicing thrift the energy consumption, raise the efficiency.
Further, the gas-liquid separator 4 may be provided between the evaporator 3 and the regenerator 16. That is, the carbon dioxide flowing out of the evaporator 3 may pass through the gas-liquid separator 4 and then the regenerator 16. Further, the liquid carbon dioxide separated by the gas-liquid separator 4 may be fed again into the liquid reservoir 2 and may flow through the evaporator 3 again.
In addition to the above embodiment, a drying filter 17 is further provided in series between the air cooler 8 and the throttle valve 1. Removing impurities such as non-condensable gas in the carbon dioxide.
In addition to the above embodiment, a check valve 6 and an oil separator 7 are provided in series between the carbon dioxide compressor 5 and the air cooler 8. The one-way valve 6 is used for ensuring the smooth and orderly flow of the working medium. The oil separator 7 is used for separating oil and other impurities in the carbon dioxide, and prevents the carbon dioxide from being mixed with the oil and other impurities such as lubricating oil of the compressor, so that the pipeline is damaged, heat exchange is affected, and efficient operation of the system is guaranteed.
On the basis of the above embodiment, further, the steam generation system further includes a flash tank 10 and a steam compressor 12, the water inlet pipe 9 is connected to the flash tank 10, the top of the flash tank 10 is connected to the steam compressor 12, the outlet of the steam compressor 12 is connected to the steam pipe 13, and the bottom of the flash tank 10 is connected to the hot water pipe 11.
The air cooler 8 is coupled with the steam compressor 12 to directly generate high-temperature steam, so that the efficiency of the carbon dioxide heat pump is improved, and the whole process is clean and environment-friendly.
On the basis of the above embodiment, the steam generating system further includes a water replenishing pipeline, the steam compressor 12 is connected to the water replenishing pipeline, and the water replenishing pipeline is provided with a water replenishing pump 14. A water feeding pump 15 is arranged on the water inlet pipeline 9. The water vapor compressor 12 is connected with the water replenishing pump 14, can provide larger steam quantity by replenishing water to the compressor, can remove the superheat degree of the water vapor compressor 12 by replenishing water when the superheat degree of the steam at the outlet of the water vapor compressor 12 is higher, and can lubricate and seal the water vapor compressor 12.
On the basis of the above embodiment, further, a steam and hot water linkage generating system using a carbon dioxide heat pump comprises a carbon dioxide heat pump system and a water vapor generating system, and the carbon dioxide heat pump system and the water vapor generating system are in heat exchange coupling through a gas cooler. The carbon dioxide heat pump system comprises a carbon dioxide compressor, a one-way valve 6, an oil separator 7, a gas cooler, a drying filter 17, a throttle valve 1, a liquid storage device 2, an evaporator 3, a gas-liquid separator 4 and a heat regenerator 16 which are connected in sequence to form a working medium loop.
The steam generation system comprises a water supply pump 15, a flash tank 10, a water replenishing pump 14 and a steam compressor 12, steam generated by the steam compressor 12 is directly provided for steam users, and hot water below the air storage tank is directly provided for hot water users.
Further, the present embodiment provides an operation method of a steam and hot water linkage generation system using the carbon dioxide heat pump, including: hot water with the temperature of more than 90 ℃ is generated by utilizing a carbon dioxide heat pump system; the running frequency of the compressor in the carbon dioxide heat pump system can be between 0 and 50 Hz; the water vapor compressor 12 can provide temperature rise of 20-50 ℃, and the temperature of the generated steam can reach 100-140 ℃; the steam and hot water can be simultaneously provided to different heat consumers.
The embodiment also provides a steam hot water generation method using the carbon dioxide heat pump steam and hot water linkage generation system, which comprises the following steps:
and opening a carbon dioxide compressor, starting the carbon dioxide heat pump system, compressing the carbon dioxide by the carbon dioxide compressor, and then exchanging heat with the cold water source at the first heat exchange side of the air cooler 8, wherein the carbon dioxide compressor 5 can operate at a frequency conversion rate of 0-50 Hz.
The water feeding pump 15 is started, cold water is pressed into a second heat exchange side of the air cooler 8 to exchange heat with the supercritical carbon dioxide, an outlet of the second heat exchange side is introduced into the flash tank 10, low-temperature low-pressure steam generated above the flash tank 10 generates negative pressure on the flash tank 10 when the steam compressor 12 operates, the low-temperature low-pressure steam is compressed into high-temperature high-pressure steam by the steam compressor 12 and is provided for steam users, and hot water below the flash tank 10 is provided for hot water users.
The supercritical carbon dioxide after heat exchange by the air cooler 8 flows through the drying filter 17 and is throttled by the throttle valve 1 to become a fluid of a vapor-liquid two-phase flow, the fluid enters the intermediate liquid storage device 2, the carbon dioxide liquid in the intermediate liquid storage device 2 enters the evaporator 3 to absorb heat in air, the heat is evaporated, the fluid enters the gas-liquid separator 4, the gaseous carbon dioxide in the intermediate liquid storage device 2 and the gas-liquid separator 4 exchanges heat with the supercritical carbon dioxide at the outlet of the air cooler 8 in the heat regenerator 16 and then enters the compressor 5, and thus the working medium circulation at the side of the carbon dioxide heat pump system is completed in a reciprocating manner.
The water vapor compressor 12 is connected with the water replenishing pump 14, and the water replenishing pump 14 has three functions, namely, providing larger steam quantity, relieving the superheat degree of the water vapor compressor 12, and lubricating and sealing the water vapor compressor 12.
The system can generate high-temperature and high-pressure steam and simultaneously provide hot water in a linkage manner, effectively improves the application range of the carbon dioxide heat pump system, and is more energy-saving and environment-friendly than a conventional steam generation system. And the carbon dioxide heat pump system has reasonable design, can greatly save energy consumption and improve efficiency.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A steam and hot water linkage generating system is characterized by comprising a carbon dioxide heat pump system and a steam generating system; the working medium of the carbon dioxide heat pump system is carbon dioxide, the carbon dioxide heat pump system comprises an air cooler, and the air cooler is connected with a water inlet pipeline of the steam generation system to exchange heat.
2. The steam and hot water linked generation system according to claim 1, wherein the carbon dioxide heat pump system further comprises a carbon dioxide compressor, a throttle valve, and an evaporator; the carbon dioxide compressor, the air cooler, the throttle valve and the evaporator are sequentially connected to form a loop.
3. The steam and hot water linked generation system according to claim 2, wherein the carbon dioxide heat pump system further comprises a heat regenerator through which an outlet line of the air cooler and an inlet line of the carbon dioxide compressor simultaneously flow for heat exchange.
4. The steam and hot water linkage generation system according to claim 2 or 3, wherein a gas-liquid separator is arranged between the evaporator and the carbon dioxide compressor in series, and an inlet pipeline of the carbon dioxide compressor is connected with a gas outlet of the gas-liquid separator.
5. The steam and hot water linkage generation system according to claim 4, wherein a liquid reservoir is arranged between the throttle valve and the evaporator in series, and the evaporator is connected with the bottom of the liquid reservoir.
6. The steam and hot water linked generation system as claimed in claim 5, wherein the top of the accumulator is communicated with the inlet pipeline of the carbon dioxide compressor through a pipeline; and the liquid outlet of the gas-liquid separator is connected with the liquid storage device.
7. The steam and hot water linked generation system according to claim 2, wherein a dry filter is provided in series between the air cooler and the throttle valve.
8. The steam and hot water linked generation system according to claim 2, wherein a check valve and an oil separator are provided in series between the carbon dioxide compressor and the air cooler.
9. The steam and hot water linked generation system according to claim 1, further comprising a flash tank and a steam compressor, wherein the water inlet line is connected to the flash tank, the top of the flash tank is connected to the steam compressor, the outlet of the steam compressor is connected to a steam line, and the bottom of the flash tank is connected to a hot water line.
10. The steam and hot water linkage generating system according to claim 9, wherein the steam generating system further comprises a water replenishing pipeline, the steam compressor is connected with the water replenishing pipeline, and a water replenishing pump is arranged on the water replenishing pipeline.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921963366.3U CN211372757U (en) | 2019-11-13 | 2019-11-13 | Steam and hot water linkage generating system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921963366.3U CN211372757U (en) | 2019-11-13 | 2019-11-13 | Steam and hot water linkage generating system |
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| CN211372757U true CN211372757U (en) | 2020-08-28 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112936538A (en) * | 2021-01-23 | 2021-06-11 | 福建建泰建筑科技有限责任公司 | Prefabricated assembled concrete prefabricated member maintenance system |
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2019
- 2019-11-13 CN CN201921963366.3U patent/CN211372757U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112936538A (en) * | 2021-01-23 | 2021-06-11 | 福建建泰建筑科技有限责任公司 | Prefabricated assembled concrete prefabricated member maintenance system |
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