CN213807870U - Gas turbine air inlet single-loop cooling system utilizing refrigerating capacity allowance of refrigerating station - Google Patents
Gas turbine air inlet single-loop cooling system utilizing refrigerating capacity allowance of refrigerating station Download PDFInfo
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- CN213807870U CN213807870U CN202022718604.3U CN202022718604U CN213807870U CN 213807870 U CN213807870 U CN 213807870U CN 202022718604 U CN202022718604 U CN 202022718604U CN 213807870 U CN213807870 U CN 213807870U
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Abstract
The utility model discloses a gas turbine inlet air single-loop cooling system and method using refrigeration capacity allowance of a refrigeration station, wherein the system comprises a gas turbine inlet air cooling heat exchange system; the system comprises a refrigeration station, a refrigeration user, a cooling heat exchanger and a gas turbine, wherein a water outlet of the refrigeration station is connected with a water inlet of the refrigeration user, a water outlet of the refrigeration user is connected with a chilled water return stop valve and a cooling heat exchanger electric valve, the cooling heat exchanger electric valve is connected with the water inlet of the cooling heat exchanger, a water outlet of the cooling heat exchanger is connected with a chilled water return electric valve, and the chilled water return stop valve and the chilled water return electric valve are connected with a water return port of the refrigeration station; the air inlet of the cooling heat exchanger is connected with the external environment, and the air outlet of the cooling heat exchanger is connected with the air inlet of the gas turbine. The utility model discloses an add cooling heat exchanger in the gas turbine import, utilize the refrigerated water return water at refrigeration station to cool off gas turbine import air to reduce gas turbine import air temperature, improve gas turbine's exerting oneself.
Description
Technical Field
The utility model belongs to the technical field of the combined cycle power generation, concretely relates to utilize gas turbine of refrigeration station cold volume surplus to admit air single loop cooling system.
Background
The combined cycle generator set has the characteristics of quick start and quick peak regulation, and plays an increasingly important role in the peak regulation of the power grid along with the gradual increase of the specific gravity of the installed power generation capacity of the combined cycle generator set in the power grid. However, in the summer of high ambient temperature, the output and thermal efficiency of the combined cycle plant are severely reduced due to the increased inlet gas temperature of the gas turbine, and both the peak shaving capacity and the plant performance are affected.
For a distributed combined cycle power station, a refrigeration station is often matched to realize combined supply of cold, heat and electricity, and the refrigerating capacity of the refrigeration station is often surplus and is not fully utilized.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an utilize gas turbine of refrigeration station cold volume surplus to admit air single loop cooling system through utilizing the refrigeration station cold volume surplus, realizes gas turbine cooling of admitting air under relatively lower investment cost to promote the distributed combined cycle unit and exert oneself and the thermal efficiency under the high ambient temperature operating condition in summer.
The utility model discloses a following technical scheme realizes:
a gas turbine air inlet single loop cooling system utilizing refrigeration capacity allowance of a refrigeration station comprises a gas turbine air inlet cooling heat exchange system; the gas turbine inlet air cooling heat exchange system comprises a refrigeration station, a cold user, a cooling heat exchanger and a gas turbine,
the water outlet of the refrigeration station is connected with the water inlet of a cold user, the water outlet of the cold user is connected with a chilled water return stop valve and a cooling heat exchanger electric valve, the cooling heat exchanger electric valve is connected with the water inlet of a cooling heat exchanger, the water outlet of the cooling heat exchanger is connected with a chilled water return electric valve, and the chilled water return stop valve and the chilled water return electric valve are connected with a return water port of the refrigeration station;
and an air inlet of the cooling heat exchanger is connected with the external environment, and an air outlet of the cooling heat exchanger is connected with an air inlet of the gas turbine.
As a further improvement of the utility model, the device also comprises an operation parameter monitoring system; the running parameter monitoring system comprises a flow measuring point, a water temperature measuring point and a humidity measuring point; the flow measuring point, the water temperature measuring point and the humidity measuring point are arranged on a pipeline of the gas turbine air inlet cooling heat exchange system.
As a further improvement of the utility model, a chilled water flow measuring point and a chilled water inlet temperature measuring point are arranged at the water inlet of the cold user; the outlet of the cold user is provided with a cold user outlet chilled water temperature measuring point, the inlet of the refrigeration station is provided with a chilled water return water temperature measuring point, the air inlet of the cooling heat exchanger is provided with a cooling heat exchanger front temperature measuring point and a cooling heat exchanger front humidity measuring point, and the air outlet of the cooling heat exchanger is provided with a cooling heat exchanger rear temperature measuring point and a cooling heat exchanger rear humidity measuring point.
As a further improvement, still be provided with frequency conversion booster pump on the delivery port of cooling heat exchanger motorised valve, the cooling heat exchanger motorised valve links to each other with frequency conversion booster pump's water inlet, and frequency conversion booster pump's delivery port links to each other with cooling heat exchanger's water inlet.
As the utility model discloses a further improvement, the pressure measurement station before the frequency conversion booster pump is installed to the water inlet department of frequency conversion booster pump, and the pressure measurement station behind the frequency conversion booster pump is installed to the delivery port department of frequency conversion booster pump.
As a further improvement of the utility model, the heat fluid side of the cooling heat exchanger is provided with a condensate water outlet.
As a further improvement of the utility model, the condensate outlet of the cooling heat exchanger is connected with the condensate water drainage electric valve.
As a further improvement of the utility model, the cooling heat exchanger is a shell-and-tube heat exchanger, the cold fluid is water, and the hot fluid is air.
A control method of a gas turbine air inlet single-loop cooling system utilizing refrigerating capacity allowance of a refrigerating station comprises the following steps:
the refrigeration station exchanges heat with a cold user, the chilled water after heat exchange of the cold user enters a cooling heat exchanger to cool the outside air, and the cooled air enters a gas turbine;
and the heated water passing through the cooling heat exchanger enters the refrigerating station to perform the next round of heat exchange circulation.
The utility model discloses at least, following profitable technological effect has:
the utility model discloses a single loop cooling system through set up cooling heat exchanger in gas turbine import, utilizes the refrigerated water return water at refrigeration station to cool off gas turbine import air to reduce gas turbine import air temperature, improve gas turbine's exerting oneself. Meanwhile, the system has an important parameter monitoring function, and operators can control the flow of chilled water through the variable-frequency booster pump according to the monitored environment temperature and humidity, so that the temperature and humidity of air at the outlet of the gas turbine are comprehensively adjusted, and the important operation parameters of the system are maintained in a normal operation range. The system can realize the inlet air cooling of the gas turbine at relatively low investment cost, thereby improving the output and the heat efficiency of the distributed combined cycle unit under the condition of high ambient temperature operation in summer.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Description of reference numerals:
1. the system comprises a refrigeration station, 2, a cold user, 3, a variable-frequency booster pump, 4, a cooling heat exchanger, 5, a gas turbine, V1, a chilled water return stop valve, V2, a cooling heat exchanger electric valve, V3, a chilled water return electric valve, V4, a condensed water drainage electric valve, P1, a pressure measurement point in front of the variable-frequency booster pump, P1, a pressure measurement point behind the variable-frequency booster pump, T1, a chilled water inlet temperature measurement point, T2, a chilled water temperature measurement point at an outlet of the cold user, T3, a chilled water return temperature measurement point, T4, a temperature measurement point in front of the cooling heat exchanger, T5, a temperature measurement point behind the cooling heat exchanger, F1, a chilled water flow measurement point, W1, a humidity measurement point in front of the cooling heat exchanger, W1 and a humidity measurement point behind the cooling heat exchanger.
Detailed Description
In order to make the purpose and technical scheme of the utility model clearer and more convenient to understand. The present invention will be described in further detail with reference to the following drawings and examples, wherein the specific examples are provided for the purpose of illustration only and are not intended to be limiting.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for 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 therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified. 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 present invention will be described in detail with reference to the accompanying drawings.
Referring to fig. 1, the utility model provides a pair of utilize gas turbine of cold volume surplus in refrigeration station single loop cooling system that admits air, including gas turbine cooling heat transfer system and operating parameter monitoring system that admits air.
The gas turbine air inlet cooling heat exchange system comprises a refrigeration station 1, wherein a water outlet of the refrigeration station 1 is connected with a water inlet of a cold user 2, a water outlet of the cold user 2 is connected with a chilled water return stop valve V1 and a cooling heat exchanger electric valve V2, a chilled water return stop valve V1 is connected with a water inlet of a variable-frequency booster pump 3, a water outlet of the variable-frequency booster pump 3 is connected with a water inlet of a cooling heat exchanger 4, a water outlet of the cooling heat exchanger 4 is connected with a chilled water return electric valve V3, a cooling heat exchanger electric valve V2 and a chilled water return electric valve V3 are connected with a water return port of the refrigeration station 1, an air inlet of the cooling heat exchanger 4 is connected with the external environment, an air outlet of the cooling heat exchanger 4 is connected with a gas turbine air inlet, and a condensate water outlet of the cooling heat exchanger 4 is connected with a condensate water drainage electric valve V4.
The operation parameter monitoring system comprises a chilled water flow measuring point F1, a chilled water inlet temperature measuring point T1 and the like, wherein the chilled water flow measuring point F1 and the chilled water inlet temperature measuring point T1 are installed at a water inlet of a cold consumer 2, a chilled water temperature measuring point T2 at an outlet of the cold consumer 2 is installed at a water outlet of the cold consumer 2, a pressure measuring point P1 in front of a variable-frequency booster pump 3 is installed at the water inlet of the variable-frequency booster pump 3, a pressure measuring point P2 at the rear of the variable-frequency booster pump 3 is installed at the water outlet of the variable-frequency booster pump 3, a chilled water return temperature measuring point T3 is installed at the water inlet of a refrigerating station 1, a temperature measuring point T4 in front of a cooling heat exchanger and a humidity measuring point W1 in front of the cooling heat exchanger are installed at an air inlet of the cooling heat exchanger 4, and a temperature measuring point T5 and a humidity measuring point W2 at the rear of the cooling heat exchanger are installed at an air outlet of the cooling heat exchanger 4.
Wherein, the cooling heat exchanger 4 is a shell-and-tube heat exchanger, the cold fluid is water, and the hot fluid is air. And a condensate water outlet is arranged on the hot fluid side of the cooling heat exchanger 4.
Chilled water for cooling the inlet air of the gas turbine is taken from the water outlet of the cooling user 2. The system is provided with a variable-frequency booster pump 3, and the flow of chilled water is controlled according to actual operation requirements.
The utility model discloses the gas turbine who utilizes cold volume surplus in refrigeration station admits air single loop cooling system's principle does:
the cooling heat exchanger is additionally arranged at the inlet of the gas turbine, and the chilled water backwater of the refrigeration station is utilized to cool the inlet air of the gas turbine, so that the inlet air temperature of the gas turbine is reduced, and the output of the gas turbine is improved. Meanwhile, the system has an important parameter monitoring function, and operators can control the flow of chilled water through the variable-frequency booster pump according to the monitored environment temperature and humidity, so that the temperature and humidity of air at the outlet of the gas turbine are comprehensively adjusted, and the important operation parameters of the system are maintained in a normal operation range. The system can realize the inlet air cooling of the gas turbine at relatively low investment cost, thereby improving the output and the heat efficiency of the distributed combined cycle unit under the condition of high ambient temperature operation in summer.
The utility model also provides a control method of the gas turbine single loop cooling system that admits air that utilizes refrigeration capacity surplus in refrigeration station, including following step:
the refrigeration station 1 exchanges heat with a cold user 2, chilled water after heat exchange of the cold user 2 enters a cooling heat exchanger 4 to cool the outside air, and the cooled air enters a gas turbine 5;
the heated water passing through the cooling heat exchanger 4 enters the refrigeration station 1 for the next heat exchange cycle.
The above embodiments are only for illustrating the technical conception and the features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, which should not limit the scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (8)
1. A gas turbine air inlet single loop cooling system utilizing refrigeration capacity allowance of a refrigeration station is characterized by comprising a gas turbine air inlet cooling heat exchange system; the gas turbine inlet air cooling heat exchange system comprises a refrigeration station, a cold user, a cooling heat exchanger and a gas turbine,
the water outlet of the refrigeration station is connected with the water inlet of a cold user, the water outlet of the cold user is connected with a chilled water return stop valve and a cooling heat exchanger electric valve, the cooling heat exchanger electric valve is connected with the water inlet of a cooling heat exchanger, the water outlet of the cooling heat exchanger is connected with a chilled water return electric valve, and the chilled water return stop valve and the chilled water return electric valve are connected with a return water port of the refrigeration station;
and an air inlet of the cooling heat exchanger is connected with the external environment, and an air outlet of the cooling heat exchanger is connected with an air inlet of the gas turbine.
2. The gas turbine inlet single-loop cooling system utilizing refrigeration capacity surplus of the refrigeration station as recited in claim 1, further comprising an operating parameter monitoring system; the running parameter monitoring system comprises a flow measuring point, a water temperature measuring point and a humidity measuring point; the flow measuring point, the water temperature measuring point and the humidity measuring point are arranged on a pipeline of the gas turbine air inlet cooling heat exchange system.
3. The gas turbine air inlet single-loop cooling system utilizing the refrigerating capacity margin of the refrigerating station as claimed in claim 2, wherein a chilled water flow measuring point and a chilled water inlet temperature measuring point are installed at a water inlet of a cold user; the outlet of the cold user is provided with a cold user outlet chilled water temperature measuring point, the inlet of the refrigeration station is provided with a chilled water return water temperature measuring point, the air inlet of the cooling heat exchanger is provided with a cooling heat exchanger front temperature measuring point and a cooling heat exchanger front humidity measuring point, and the air outlet of the cooling heat exchanger is provided with a cooling heat exchanger rear temperature measuring point and a cooling heat exchanger rear humidity measuring point.
4. The single-circuit cooling system for inlet air of gas turbine utilizing cooling capacity surplus of refrigerating station as claimed in claim 1, wherein a variable frequency booster pump is further disposed on the water outlet of the electric valve of the cooling heat exchanger, the electric valve of the cooling heat exchanger is connected with the water inlet of the variable frequency booster pump, and the water outlet of the variable frequency booster pump is connected with the water inlet of the cooling heat exchanger.
5. The single-loop cooling system for gas turbine intake with refrigeration capacity surplus of the refrigeration plant as claimed in claim 4, wherein the water inlet of the frequency conversion booster pump is provided with a front pressure measuring point of the frequency conversion booster pump, and the water outlet of the frequency conversion booster pump is provided with a rear pressure measuring point of the frequency conversion booster pump.
6. The gas turbine inlet air single-loop cooling system using the refrigerating capacity margin of the refrigerating station as claimed in claim 1, wherein a condensed water drain port is arranged on the side of the heat fluid of the cooling heat exchanger.
7. The gas turbine inlet single-loop cooling system using the refrigerating capacity margin of the refrigerating station as claimed in claim 6, wherein a condensate water outlet of the cooling heat exchanger is connected with a condensate water draining electric valve.
8. The gas turbine air inlet single-loop cooling system utilizing the refrigerating capacity surplus of the refrigerating station as claimed in claim 1, wherein the cooling heat exchanger is a shell-and-tube heat exchanger, the cold fluid is water, and the hot fluid is air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022718604.3U CN213807870U (en) | 2020-11-21 | 2020-11-21 | Gas turbine air inlet single-loop cooling system utilizing refrigerating capacity allowance of refrigerating station |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022718604.3U CN213807870U (en) | 2020-11-21 | 2020-11-21 | Gas turbine air inlet single-loop cooling system utilizing refrigerating capacity allowance of refrigerating station |
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| CN213807870U true CN213807870U (en) | 2021-07-27 |
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| CN202022718604.3U Active CN213807870U (en) | 2020-11-21 | 2020-11-21 | Gas turbine air inlet single-loop cooling system utilizing refrigerating capacity allowance of refrigerating station |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112302806A (en) * | 2020-11-21 | 2021-02-02 | 西安热工研究院有限公司 | Gas turbine air inlet single-loop cooling system and method utilizing refrigeration capacity allowance of refrigeration station |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112302806A (en) * | 2020-11-21 | 2021-02-02 | 西安热工研究院有限公司 | Gas turbine air inlet single-loop cooling system and method utilizing refrigeration capacity allowance of refrigeration station |
| CN112302806B (en) * | 2020-11-21 | 2024-03-26 | 西安热工研究院有限公司 | Gas turbine air inlet single-loop cooling system and method utilizing refrigeration station cold energy allowance |
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