CN215003037U - Passive air cooler for compressed air energy storage power station - Google Patents
Passive air cooler for compressed air energy storage power station Download PDFInfo
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- CN215003037U CN215003037U CN202120943212.9U CN202120943212U CN215003037U CN 215003037 U CN215003037 U CN 215003037U CN 202120943212 U CN202120943212 U CN 202120943212U CN 215003037 U CN215003037 U CN 215003037U
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Abstract
The utility model provides a passive air cooler for compressed air energy storage power station, include: the air cooler comprises an air cooler shell, and a water tank, a cooling coil and an air inlet pipe part which are arranged in the air cooler shell; the water tank is arranged at the lower end position of the inner part of the air cooler shell, cooling liquid is arranged in the water tank, and the cooling coil and the air inlet pipe part are arranged in the cooling liquid of the water tank; water at the hot side to be cooled flows in and out through the cooling coil to form a cooling path, and the cooling coil is arranged in the cooling liquid; one end of the air inlet pipe component is connected with exhaust steam of the compressed air energy storage system, and the other end of the air inlet pipe component extends into the bottom of the cooling liquid and is opened; when the dead steam enters the cooling liquid, the cooling liquid evaporates and absorbs heat to the dead steam, and further heat exchange is achieved. This equipment is through increasing admission line and branch pipe, water tank and cooling tube coil pipe, through the mixed cooling of low temperature, dry air and cold side water, improves heat exchange efficiency.
Description
Technical Field
The utility model relates to a compressed air energy storage cooling field, concretely relates to passive air cooler for compressed air energy storage power station.
Background
The compressed air energy storage technology is a physical energy storage technology capable of storing energy in a large scale, and compared with pumped storage, the compressed air energy storage technology has a shorter construction period and has no influence on ecology; compared with the battery energy storage, the energy storage scale is larger, and the safety risk is avoided; but also is more mature than technologies such as flywheel energy storage and the like.
In the conventional compressed air energy storage technology, redundant compressed heat is generally radiated to the atmospheric environment through an air cooler; the low-temperature and dry air discharged by the expander is directly released to the atmosphere, so that the energy is wasted, and the efficiency of the energy storage system is not improved.
In addition, current air cooler technique is at the top of the tower installation fan usually, adopts the fan to carry out forced convection cooling, and some then assist with cooling spray system to reach and strengthen the heat transfer effect, though the technology is mature, still have some defects when using:
firstly, the fan and the spray pump are power-consuming rotating equipment, the power consumption of the system can be increased when the system runs, and the inherent reliability of the system is reduced by the rotating equipment;
secondly, if the air cooler is used for carrying out forced convection heat exchange purely by air, and the heat exchange mode is steam-liquid heat exchange, the heat exchange efficiency is low, and uneven cooling is caused;
thirdly, when a spraying system is used as an auxiliary device, the heat exchange efficiency is improved, but wet air (or steam-water mixture) is arranged on the air side, and the heat exchange efficiency still has a large improvement space; however, since the air entering the tower is ambient air and the moisture content thereof is influenced by the environment, the amount of water evaporated is limited at the dew point temperature thereof, and thus the heat exchange efficiency cannot be improved to the maximum extent.
Fourthly, when ordinary air cooler was used for compressed air energy storage power station, because the structure of air cooler is admitted air for the lower extreme is open, can't utilize the dry air after the inflation, causes the energy extravagant.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the passive air cooler for the compressed air energy storage power station is provided.
The purpose of the utility model is realized by the following technical scheme:
a passive air cooler for a compressed air energy storage power station, comprising: the air cooler comprises an air cooler shell (10), and a water tank (4), a cooling coil (3) and an air inlet pipe part which are arranged in the air cooler shell (10);
the water tank (4) is arranged at the lower end of the interior of the air cooler shell (10), cooling liquid is arranged in the water tank (4), and the cooling coil (3) and the air inlet pipe part are arranged in the cooling liquid of the water tank (4);
water at the hot side to be cooled flows in and out through the cooling coil (3) to form a cooling path, and the cooling coil (3) is arranged in the cooling liquid;
one end of the air inlet pipe component is connected with exhaust steam of the compressed air energy storage system, and the other end of the air inlet pipe component extends into the bottom of the cooling liquid and is opened;
when the passive air cooler works, the dead steam enters the cooling liquid, and the cooling liquid evaporates and absorbs heat to the dead steam to further realize heat exchange.
Preferably, the cooling coil (3) comprises: helical coil, serpentine coil or arrayed straight tube;
the cooling coils (3) are uniformly arranged in the water tank (4).
Preferably, the intake pipe member includes: an air inlet pipe (9) and an air inlet branch pipe (11) which are connected with each other;
intake pipe (9) with compressed air energy storage system's exhaust steam is connected, intake branch (11) evenly set up in water tank (4), and with cooling coil (3) cross arrangement, intake branch (11) lower extreme extends to water tank (4) bottom and opening.
Preferably, the cooling coil (3) is entirely disposed in the cooling liquid of the tank (4).
Preferably, the method further comprises the following steps: a steam-water separation device (1);
the steam-water separation device (1) is arranged at the top end inside the air cooler shell (10).
Preferably, a certain distance is arranged between the steam-water separation device (1) and the cooling liquid in the water tank (4).
Preferably, the method further comprises the following steps: a hot side water inlet and outlet pipe and a water tank inlet and outlet pipe;
the hot-side water inlet and outlet pipe is arranged at one end of the air cooler shell (10) and is connected with the cooling coil (3);
the water tank inlet and outlet pipe is arranged at the other end of the air cooler shell (10) and connected with the water tank (4).
Preferably, the hot-side water inlet and outlet pipe includes: a hot side water inlet pipe (2) and a hot side water outlet (5);
the hot side water inlet pipe (2) is arranged at the upper end of the water tank (4) and connected with one end of the cooling coil pipe (3), hot side water to be cooled enters the cooling coil pipe (3) through the hot side water inlet pipe, and a hot side water outlet (5) is arranged at the lower end of the water tank (4) and connected with the other end of the cooling coil pipe (3).
Preferably, the water tank inlet and outlet pipe includes: a sewage discharge pipe (7) and a water replenishing pipe (8);
the water replenishing pipe (8) is connected with the upper end of the water tank (4) through the air cooler shell (10);
the blow-off pipe (7) is connected with the lower end of the water tank (4) through the air cooler shell (10).
Preferably, the method further comprises the following steps: a bottom support (6);
the bottom support (6) is arranged at the bottom of the passive air cooler.
Compared with the prior art, the beneficial effects of the utility model reside in that:
1) a passive air cooler for a compressed air energy storage power station, comprising: the air cooler comprises an air cooler shell, and a water tank, a cooling coil and an air inlet pipe part which are arranged in the air cooler shell; the water tank is arranged at the lower end position of the inner part of the air cooler shell, cooling liquid is arranged in the water tank, and the cooling coil and the air inlet pipe part are arranged in the cooling liquid of the water tank; water at the hot side to be cooled flows in and out through the cooling coil to form a cooling path, and the cooling coil is arranged in the cooling liquid; one end of the air inlet pipe component is connected with exhaust steam of the compressed air energy storage system, and the other end of the air inlet pipe component extends into the bottom of the cooling liquid and is opened; when the passive air cooler works, the dead steam enters the cooling liquid, and the cooling liquid evaporates and absorbs heat to the dead steam to further realize heat exchange. This equipment is through increasing admission line and branch pipe, water tank and cooling tube coil pipe, through the mixed cooling of low temperature, dry air and cold side water, improves heat exchange efficiency.
2) By adding the air inlet pipeline and the branch distribution pipes, the arrangement of the final cold trap is realized on the premise that the air cooler keeps passive, the whole air cooler has no power consumption and no rotating equipment, and the reliability of the air cooler is improved; the temperature distribution of the middle cold trap (water tank) in the air cooler can be ensured to be uniform; in addition, dry air directly enters the water tank through the air inlet pipeline and the distribution branch pipe to be mixed with cold side water, and water evaporates to absorb heat, so that the cooling capacity of the air cooler is greatly enhanced.
3) Through increasing water tank and cooling tube coil pipe, increased heat transfer area to because water (cold side) -water (hot side) heat transfer, improved heat exchange efficiency, guarantee by hot side water fully cooled down in air cooler.
4) The top of the air cooler is provided with the steam-water separation device, so that part of liquid water drops can be recovered, and the loss of water in the water tank of the air cooler is reduced; meanwhile, due to the common resistance reduction effect of the air inlet branch pipe, the cold side water and the steam-water separation device, silencing equipment at the exhaust end in the compressed air energy storage system can be omitted, and investment is saved.
Drawings
Fig. 1 is a schematic structural view of a passive air cooler for a compressed air energy storage power station according to the present invention;
number in the figure: the method comprises the following steps of 1-steam-water separation device, 2-hot side water inlet pipe, 3-cooling coil pipe, 4-water tank, 5-hot side water outlet, 6-bottom support, 7-blow-off pipe, 8-water replenishing pipe, 9-air inlet pipe, 10-air cooler shell and 11-air inlet branch pipe.
Detailed Description
The following examples are provided to further illustrate the embodiments of the present invention, but the present invention is not limited to these examples.
Example 1:
for solving the problem of unable make full use of compressed air energy storage system's of current air cooler drying, low temperature exhaust steam, the utility model designs an admission line and branch pipe, introduce the air cooler with compressed air energy storage system's exhaust steam to as the final hot trap of hot side water, saved the fan at general air cooler top simultaneously.
In order to improve the heat exchange efficiency of the air cooler and the uniformity of internal cooling, the utility model designs the air inlet pipeline and the branch pipe, and simultaneously designs the water tank and the cooling pipe coil pipe, thereby increasing the heat exchange area; the purpose of finally and uniformly cooling the hot side water is achieved by mixing low temperature and dry air with the cold side water for cooling; and because cold side water can evaporate to the dry air, its evaporation latent heat will make air cooler heat exchange efficiency promote by a wide margin.
As shown in fig. 1, the utility model relates to an air cooler includes catch water 1, installs in the top of air cooler casing 10, and hot side water inlet tube 2 links to each other with cooling tube coil pipe 3, the cooling tube coil pipe evenly arranges in the inside water tank 4 of air cooler, cooling coil pipe 3's export links to each other with hot side water outlet 5. The lower part of the water tank 4 is connected with a sewage discharge pipe 7, and the upper part of the water tank 4 is connected with a water replenishing pipe 8. The air inlet pipe 9 is connected with an air inlet branch pipe 11, the air inlet branch pipe 11 is uniformly arranged in the water tank 4, is uniformly crossed with the cooling coil pipe 3 and is placed in the water tank 4 together.
The outlet of the hot side water inlet pipe 2 is connected with the inlet of the cooling coil 3, a medium to be cooled enters the cooling coil 3 in the air cooler through the hot side water inlet pipe 2, and is cooled by cold side water in the water tank 4 in the cooling coil 3; the cooling coil 3 can be one of a spiral coil, a serpentine coil or an array straight pipe, is uniformly arranged in the water tank 4 and is submerged by cold side water in the water tank 4, the outlet of the cooling coil 3 is connected with a hot side water outlet 5, and after being cooled in the air cooler by a cooling medium, the cooling medium returns to the original system for standby through the hot side water outlet 5.
The air cooler is characterized in that exhaust (dry air) of the compressed air energy storage system enters the air cooler through an air inlet pipe 9, the air inlet pipe 9 is connected with an air inlet branch pipe 11, the air inlet branch pipe 11 is uniformly arranged in the water tank 4 and is uniformly arranged in a crossed manner with the cooling coil pipe 3, the lower end of the air inlet branch pipe extends to the bottom of the water tank 4, an air outlet is reserved, the exhaust of the compressed air energy storage system enters the air inlet branch pipe 11 and then uniformly enters cold side water at the bottom of the water tank 4, and the moisture content of the dry air is basically zero, so that the cold side water evaporates into the dry air in the water tank 4 and is cooled. After being humidified and heated, the dry air rises to the upper part of the air cooler and enters the steam-water separation device 1, the separated gas is discharged into the atmosphere, and the separated liquid falls back into the water tank 4. In the water tank 4, the dry air satisfies the energy equation when cooling:
wherein QairThe heat taken away by the dry air after passing through the water tank 4 due to the temperature rise;
the heat quantity taken away by the saturated vapor after the cold side water in the water tank 4 is evaporated into the dry air; qcThe heat which needs to be cooled for the medium to be cooled.
Qair＝mair(hex-hin)
Wherein m isairIs the dry air flow entering the air cooler from the air inlet pipe 9; h isexAnd hinThe enthalpy values of the outlet and inlet of the dry air are determined by the corresponding inlet and outlet temperatures TexAnd TinAnd corresponding pressure pexAnd pinAnd then.
Wherein d is the moisture content in the air separated by the steam-water separation device 1,
at a dry air temperature TairThe latent heat of vaporization of the cold side water under the conditions.
Wherein p issAt a dry air temperature TairUnder the condition, the saturation temperature of cold side water;
is the relative humidity.
Referring to fig. 1, the water replenishing pipe 8 is connected to the water tank 4 through an air cooler casing 10, and is used for replenishing cold side water to the inside of the air cooler when the liquid level of the water tank 4 is low. And the blow-off pipe 7 is connected with the bottom of the water tank 4 through an air cooler 10 and is used for discharging cold side water during periodic blow-off of the air cooler and high liquid level of the water tank 4.
It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the scope of the claims of the present invention pending from the application.
Claims (10)
1. A passive air cooler for compressed air energy storage power station, comprising: the air cooler comprises an air cooler shell (10), and a water tank (4), a cooling coil (3) and an air inlet pipe part which are arranged in the air cooler shell (10);
the water tank (4) is arranged at the lower end of the interior of the air cooler shell (10), cooling liquid is arranged in the water tank (4), and the cooling coil (3) and the air inlet pipe part are arranged in the cooling liquid of the water tank (4);
water at the hot side to be cooled flows in and out through the cooling coil (3) to form a cooling path, and the cooling coil (3) is arranged in the cooling liquid;
one end of the air inlet pipe component is connected with exhaust steam of the compressed air energy storage system, and the other end of the air inlet pipe component extends into the bottom of the cooling liquid and is opened;
when the passive air cooler works, the dead steam enters the cooling liquid, and the cooling liquid evaporates and absorbs heat to the dead steam to further realize heat exchange.
2. A passive air cooler for a compressed air energy storage power plant according to claim 1, characterized in that the cooling coil (3) comprises: helical coil, serpentine coil or arrayed straight tube;
the cooling coils (3) are uniformly arranged in the water tank (4).
3. A passive air cooler for a compressed air energy storage power plant according to claim 2, characterized in that said air inlet pipe part comprises: an air inlet pipe (9) and an air inlet branch pipe (11) which are connected with each other;
intake pipe (9) with compressed air energy storage system's exhaust steam is connected, intake branch (11) evenly set up in water tank (4), and with cooling coil (3) cross arrangement, intake branch (11) lower extreme extends to water tank (4) bottom and opening.
4. A passive air cooler for a compressed air energy-storing power station according to claim 1, characterized in that the cooling coil (3) is entirely arranged in the cooling liquid of the water tank (4).
5. A passive air cooler for a compressed air energy storage power plant as claimed in claim 1, further comprising: a steam-water separation device (1);
the steam-water separation device (1) is arranged at the top end inside the air cooler shell (10).
6. A passive air cooler for a compressed air energy storage plant according to claim 5, characterized in that a distance is provided between the steam-water separation device (1) and the cooling liquid in the water tank (4).
7. A passive air cooler for a compressed air energy storage power plant as claimed in claim 1, further comprising: a hot side water inlet and outlet pipe and a water tank inlet and outlet pipe;
the hot-side water inlet and outlet pipe is arranged at one end of the air cooler shell (10) and is connected with the cooling coil (3);
the water tank inlet and outlet pipe is arranged at the other end of the air cooler shell (10) and connected with the water tank (4).
8. A passive air cooler for a compressed air energy storage power plant according to claim 7 wherein the hot side water inlet and outlet pipes comprise: a hot side water inlet pipe (2) and a hot side water outlet (5);
the hot side water inlet pipe (2) is arranged at the upper end of the water tank (4) and connected with one end of the cooling coil pipe (3), hot side water to be cooled enters the cooling coil pipe (3) through the hot side water inlet pipe, and a hot side water outlet (5) is arranged at the lower end of the water tank (4) and connected with the other end of the cooling coil pipe (3).
9. A passive air cooler for a compressed air energy storage power plant as claimed in claim 7 wherein the water tank inlet and outlet pipes comprise: a sewage discharge pipe (7) and a water replenishing pipe (8);
the water replenishing pipe (8) is connected with the upper end of the water tank (4) through the air cooler shell (10);
the blow-off pipe (7) is connected with the lower end of the water tank (4) through the air cooler shell (10).
10. A passive air cooler for a compressed air energy storage power plant as claimed in claim 1, further comprising: a bottom support (6);
the bottom support (6) is arranged at the bottom of the passive air cooler.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022185545 | 2020-09-29 | ||
| CN2020221855458 | 2020-09-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215003037U true CN215003037U (en) | 2021-12-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120943212.9U Active CN215003037U (en) | 2020-09-29 | 2021-04-28 | Passive air cooler for compressed air energy storage power station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215003037U (en) |
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2021
- 2021-04-28 CN CN202120943212.9U patent/CN215003037U/en active Active
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Effective date of registration: 20230224 Granted publication date: 20211203 |