CN117905725A - Rotor blade, compressor and wet compression method - Google Patents
Rotor blade, compressor and wet compression method Download PDFInfo
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- CN117905725A CN117905725A CN202410038388.8A CN202410038388A CN117905725A CN 117905725 A CN117905725 A CN 117905725A CN 202410038388 A CN202410038388 A CN 202410038388A CN 117905725 A CN117905725 A CN 117905725A
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- 238000007906 compression Methods 0.000 title claims abstract description 30
- 230000006835 compression Effects 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 306
- 238000005507 spraying Methods 0.000 claims abstract description 97
- 239000007921 spray Substances 0.000 claims abstract description 34
- 238000002485 combustion reaction Methods 0.000 claims description 10
- 238000001704 evaporation Methods 0.000 claims description 3
- 230000008020 evaporation Effects 0.000 claims description 3
- 229920006395 saturated elastomer Polymers 0.000 claims description 3
- 238000002347 injection Methods 0.000 description 11
- 239000007924 injection Substances 0.000 description 11
- 239000000243 solution Substances 0.000 description 6
- 238000009834 vaporization Methods 0.000 description 3
- 230000008016 vaporization Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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Abstract
The application discloses a rotor blade, a compressor and a wet compression method, wherein the rotor blade comprises the following components: blade body, blade body includes: the blade root is used for being arranged on a rotating shaft of the air compressor, the blade root is provided with a water inlet, the water inlet is used for being communicated with a water outlet on the rotating shaft, and the water outlet of the rotating shaft is communicated with a water spraying port of water spraying equipment; the blade top is provided with a plurality of water spraying holes, a water spraying flow passage is arranged in the blade body, and each water spraying hole is communicated with the water inlet through the water spraying flow passage. The rotor blade provided by the application can spray water into the air compressor to form a water curtain to seal the blade top gap and also can play a role in wet compression, and the water is directly sprayed out of the blade top of the rotor blade, namely directly sprayed into the air compressor, so that the temperature in the air compressor is higher, and the phenomenon that the water is directly sprayed into the air compressor can not be condensed.
Description
Technical Field
The application relates to the field of gas turbines, in particular to a rotor blade, a gas compressor and a wet compression method.
Background
In the field of gas turbines, a rotor blade in a gas compressor is used as a rotating mechanism, a blade top gap is inevitably formed between the rotor blade and the inner wall of a casing, when the gas is fed, a leakage flow is generated in the blade top gap under the driving of pressure difference, the suction function of the gas flow is reduced by the leakage flow in the blade top gap, the flow characteristic of a main flow is changed by the leakage vortex generated by the gas flow passing through the blade top gap, the flow loss is increased, and the performance of the gas compressor is reduced. At present, the method for reducing the leakage flow of the blade tip clearance mainly reduces the blade tip clearance, but when the blade tip clearance is too small, the blade and the casing are in collision and grinding.
In addition, in order to improve the performance of the compressor, the compressor often adopts a wet compression method, and a water spray cooling device is generally added at the position of an air inlet of the compressor and sprays water to the air inlet of the compressor in the wet compression method commonly used in the prior art. According to the method for directly adding the water spraying equipment at the air inlet of the air compressor, on one hand, the water spraying equipment can cause the air flow disturbance at the air inlet of the air compressor to influence the operation stability of the air compressor; on the other hand, the water spraying equipment is arranged outside the air compressor, and if the ambient temperature outside the air compressor is low, water sprayed to the air inlet of the air compressor by the water spraying equipment is easy to condense.
Disclosure of Invention
The application provides a rotor blade, a compressor and a wet compression method, and aims to solve the problem that the performance of the compressor is reduced due to leakage flow of a blade top gap in the prior art, and the problem that water spraying equipment is required to be added at the position of an air inlet of the compressor in the wet compression method in the prior art, so that the air flow of the air inlet of the compressor is disturbed, the operation is unstable, and the problem that water sprayed by the water spraying equipment is easy to condense when the ambient temperature of the air inlet of the compressor is low.
In an embodiment of the present application, a rotor blade is provided, for use in a compressor, the rotor blade comprising:
Blade body, the blade body includes:
The blade root is used for being arranged on a rotating shaft of the air compressor, the blade root is provided with a water inlet, the water inlet is used for being communicated with a water outlet on the rotating shaft, and the water outlet of the rotating shaft is communicated with a water spraying port of water spraying equipment;
The blade top is provided with a plurality of water spraying holes, a water spraying flow passage is arranged in the blade body, and each water spraying hole is communicated with the water inlet through the water spraying flow passage.
In the embodiment of the application, the water spraying holes are uniformly arranged along the length direction of the blade tip, and the direction of each water spraying hole is the same as the extending direction of the blade tip.
In the embodiment of the application, the water inlet and the water spraying flow channels are provided with a plurality of water inlets, the water inlets and the water spraying flow channels are in one-to-one correspondence, and the water spraying flow channels are communicated at one end close to the blade tip.
In the embodiment of the application, each water spraying hole is in a hole shape or a slit shape.
The application also proposes a compressor provided with at least one rotor blade according to any one of the embodiments described above;
the compressor also comprises a rotating shaft, wherein the rotating shaft is provided with a water outlet, each rotor blade is arranged on the rotating shaft, and the water inlet of each rotor blade is communicated with the water outlet on the rotating shaft;
The water outlet of the rotating shaft is communicated with a water spraying port of the water spraying equipment.
The application also provides a wet compression method applied to the compressor described in the above embodiment, the method comprising:
when the air compressor operates, water is sprayed into the air compressor through the water spraying holes of each rotor blade according to the preset mass flow and the preset water drop size.
In the embodiment of the application, the preset mass flow is calculated by the following formula: w=dm;
Wherein W represents the sum of the mass flow rates of the water spray holes, D represents the moisture content of saturated air under the condition of the air outlet of the air compressor, and M is the mass flow rate of air flow passing through the air compressor.
In the embodiment of the application, the preset water drop size is calculated according to the following formula:
Wherein d represents the diameter of water drops sprayed by each water spray hole, L represents the distance between the water spray hole and the combustion chamber of the gas turbine, A is the throat area of a last-stage stator blade of the gas compressor, ρ is the air density of the gas inlet of the gas compressor, pi C is the supercharging ratio of the gas compressor, k is the air specific heat ratio, 1.4 is taken, C is the evaporation coefficient of the water drops, and pi is the circumference rate constant.
In an embodiment of the present application, the water is pure water.
In the embodiment of the application, the water pressure of each water spray hole is larger than the air pressure in the flow passage of the air compressor.
According to the application, the water inlets are formed in the blade roots of the rotor blades, and the water spraying holes are formed in the blade tops, so that water can be supplied to the water inlets of the rotor blades by utilizing the water inlet flow channels of the rotating shafts based on water spraying equipment, and sprayed from the water spraying holes, when the air compressor operates, each rotor blade rotates at a high speed, water sprayed from the water spraying holes in the blade tops of each rotor blade can form a water curtain, and the gaps of the blade tops are closed, so that air flow cannot pass through the gaps of the blade tops, and leakage flow of the gaps of the blade tops cannot be generated. In addition, the rotor blade provided by the application does not need to be arranged at the air inlet position of the air compressor during wet compression, and can be arranged at any position which can be communicated with the water inlet flow passage of the rotating shaft, water can be sprayed into the air compressor through the rotor blade to form a water curtain to seal a blade top gap and play the role of wet compression, in addition, water is directly sprayed at the blade top of the rotor blade, namely, the water is directly sprayed into the air compressor, the temperature in the air compressor is higher, and the phenomenon that the water is directly sprayed into the air compressor can not be condensed.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a rotor blade according to an embodiment of the present disclosure;
FIG. 2 is an enlarged view of a portion of a tip of the rotor blade of FIG. 1;
FIG. 3 is a cross-sectional view of a rotor blade in an embodiment of the application.
Description of the drawings:
100-blade body, 110-blade tip, 111-water spraying hole, 120-blade root, 121-water inlet, 122-first water inlet, 123 second water inlet, 124-third water inlet, 130-water spraying runner, 131-first water spraying runner, 132-second water spraying runner, 133-third water spraying runner.
The achievement of the objects, functional features and advantages of the present application will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
It should be noted that, if directional indications (such as up, down, left, right, front, and rear … …) are included in the embodiments of the present application, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.
In addition, if there is a description of "first", "second", etc. in the embodiments of the present application, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present application.
As shown in fig. 1 and 2, an embodiment of the present application proposes a rotor blade, which is applied to a compressor, and includes:
a blade body 100, the blade body 100 comprising:
The blade root 120 is used for being mounted on a rotating shaft of the air compressor, the blade root 120 is provided with a water inlet 121, the water inlet 121 is used for being communicated with a water outlet on the rotating shaft, and the water outlet of the rotating shaft is communicated with a water spraying port of water spraying equipment;
The blade top 110 is provided with a plurality of water spraying holes 111, a water spraying flow passage 130 is arranged in the blade body 100, and each water spraying hole 111 is communicated with the water inlet 121 through the water spraying flow passage 130.
As shown in FIG. 1, in an embodiment of the present application, the general shape of the blade body 100 may be consistent with the shape of rotor blades commonly found in the art.
The blade body 100 is provided with a blade root 120, and when the blade body 100 is installed in a compressor, the blade root 120 of the blade body 100 is connected with a rotating shaft of the compressor, and the rotating shaft rotates to drive the rotor blades to rotate, so that air flow entering the compressor is compressed. Unlike the rotor blade in the prior art, the blade root 120 of the rotor blade according to the embodiment of the present application has a plurality of water inlets 121 at one end thereof, the blade tip 110 has a plurality of water spray holes 111 at one end thereof, the inside of the blade body 100 is provided with a water spray flow channel 130, and each water inlet 121 at one end of the blade root 120 is communicated with each water spray hole 111 at one end of the blade tip 110 through the water spray flow channel 130.
By utilizing the rotor blade provided by the application, a water outlet can be arranged on the rotating shaft of the air compressor, a water inlet flow passage is arranged in the rotating shaft, water is supplied into the water inlet flow passage of the rotating shaft by utilizing water spraying equipment, and water enters the water spraying flow passage 130 in the blade body 100 through the water outlet of the rotating shaft and the water inlet 121 of the rotor blade, and finally can be sprayed out from each water spraying hole 111 of the blade top 110.
The blade tops 110 of the rotor blades are closer to the inner side wall of the compressor casing, a tiny blade top gap is formed, the blade tops 110 of the rotor blades face the inner side wall of the casing, when the rotor blades rotate at a high speed, water curtains can be formed between the blade tops 110 of the blades and the inner side wall of the casing when the water spraying holes 111 of the blade tops 110 spray water, and the rotor blades rotate at a high speed when the compressor operates, so that all positions in the circumferential direction of the blade top gap can be filled with the water curtains sprayed by the water spraying holes 111, after the rotor blades rotate, the sprayed water can play a role of sealing the blade top gap after forming the water curtain, and when the blade top gap is sealed, air flow entering the compressor cannot pass through the blade top gap, so that leakage flow of the blade top gap cannot be generated.
In addition, after the water curtain formed by water spraying of the water spraying holes 111 of each blade top 110 is scattered, the water curtain can meet the high-pressure air flow entering the air compressor flow channel and is further vaporized by the high-pressure air flow, and heat can be absorbed in the vaporization process, so that the temperature of air in the air compressor flow channel can be reduced, the wet compression effect is achieved, and the compression performance of the air compressor can be improved.
According to the rotor blade, the water inlet 121 is formed in the blade root 120, the water spraying hole 111 is formed in the blade tip 110, so that water can be supplied to the water inlet 121 of the rotor blade by utilizing the water inlet flow channel of the rotating shaft based on water spraying equipment, and sprayed out of the water spraying hole 111, when the air compressor operates, each rotor blade rotates at a high speed, water sprayed out of the water spraying hole 111 of each rotor blade tip 110 can form a water curtain, a blade tip gap is closed, and air flow cannot pass through the blade tip gap, so that leakage flow of the blade tip gap cannot be generated. In addition, the rotor blade provided by the application does not need to be arranged at the air inlet position of the air compressor during wet compression, and can be arranged at any position which can be communicated with the water inlet flow passage of the rotating shaft, water can be sprayed into the air compressor through the rotor blade to form a water curtain to seal a blade top gap and play the role of wet compression, in addition, water is directly sprayed on the blade top 110 of the rotor blade, namely, the water is directly sprayed into the air compressor, the temperature in the air compressor is higher, and the phenomenon that the water is directly sprayed into the air compressor can not be condensed.
As shown in fig. 1, 2 and 3, in the embodiment of the present application, the water spray holes 111 are uniformly arranged along the length direction of the tip 110, and the direction of each water spray hole 111 is the same as the extending direction of the tip 110.
Wherein, evenly set up a plurality of holes for water spraying 111 in the length direction of leaf top 110, each hole for water spraying 111 all can spray water, and each hole for water spraying 111 can spray water in different positions, guarantees that the water curtain that forms can be with the complete closure of leaf top clearance. In addition, each rotor blade is disposed in a dispersed manner in the circumferential direction of the rotating shaft, and the blade tip 110 of each rotor blade is oriented perpendicularly to the inner wall of the casing, and each water spraying hole 111 and the blade tip 110 extend in the same direction, i.e., each water spraying hole 111 is also perpendicularly to the inner wall of the casing, so that water sprayed by each water spraying hole 111 is perpendicularly to the inner wall of the casing, and water curtain formation is facilitated.
As shown in fig. 3, in the embodiment of the present application, a plurality of water inlets 121 and water spraying channels 130 are provided, each water inlet 121 corresponds to each water spraying channel 130 one by one, and each water spraying channel 130 communicates at one end near the blade tip 110. In the embodiment of the present application, as shown in fig. 3, three water inlets 121 are provided on the end surface of the blade root 120, in the direction shown in fig. 3, a first water inlet 122, a second water inlet 123 and a third water inlet 124 are sequentially provided from left to right, as shown in fig. 3, a first water spraying runner 131, a second water spraying runner 132 and a third water spraying runner 133 are sequentially provided from left to right in the blade body 100, the first water spraying runner 131 is communicated with the first water inlet 122, the second water spraying runner 132 is communicated with the second water inlet 123, and the third water spraying runner 133 is communicated with the third water inlet 124. In addition, as shown in FIG. 3, the first water injection flow passage 131, the second water injection flow passage 132, and the third water injection flow passage 133 are merged at one end near the tip 110 and communicate with the respective water injection holes 111 of the tip 110.
The water inlet 121 of the blade top 110 is communicated with the water spraying port of the water spraying device through the water outlet on the rotating shaft, the water spraying amount required during wet compression is more, if only one water inlet 121 is arranged at the blade root 120, a larger water inlet 121 needs to be arranged in order to ensure sufficient water spraying amount, and when the larger water inlet 121 is arranged, the strength of the blade root 120 is reduced, so that the connection strength with the rotating shaft is reduced. In the embodiment of the application, a plurality of smaller water inlets 121 are uniformly formed in the blade root 120, so that sufficient water supply can be ensured, and the large water inlets 121 formed in the blade root 120 can be avoided, thereby not affecting the connection strength between the blade root 120 and the rotating shaft.
In addition, by providing three water spraying flow passages 130 corresponding to the three water inlets 121 on the blade body 100, on one hand, when water flows through the water spraying flow passages 130 inside the blade body 100, the surface temperature of the blade can be reduced, and the thermal load of the blade can be reduced; on the other hand, if only one water spraying flow channel 130 is provided, the diameter of one water spraying flow channel 130 needs to be larger, then the strength of the blade body 100 at the position of the water spraying flow channel 130 is weaker, and a plurality of water spraying flow channels 130 are provided and distributed at each position of the blade body 100, so that the diameter of the water spraying flow channel 130 can be relatively reduced, and the strength of the blade body 100 is ensured.
In addition, it should be noted that in the embodiment of the present application, three water inlets 121 are provided on the blade root 120, and three water spraying flow passages 130 are provided inside the blade body 100, and in other embodiments, more or fewer water inlets 121 may be provided, and the specific number of the water inlets 121 is not limited in the technical solution of the present application, and the number of the water inlets 121 may be set according to the water supply amount required during the wet compression of the gas turbine compressor. The number of the water spraying passages 130 in the blade body 100 may be adaptively adjusted according to the actual situation, and the number of the water spraying passages 130 is not limited to be the same as the number of the water inlets 121.
As shown in fig. 3, in the embodiment of the present application, each of the water spraying holes 111 may have a hole shape, for example, a right circular hole, an elliptical hole, a bar-shaped hole, etc. In other embodiments, the slit shape may be a slit shape, or the like.
The application also proposes a compressor provided with at least one rotor blade according to any one of the embodiments described above;
The compressor further comprises a rotating shaft, the rotating shaft is provided with a water outlet, each rotor blade is arranged on the rotating shaft, and a water inlet 121 of each rotor blade is communicated with the water outlet on the rotating shaft;
The water outlet of the rotating shaft is communicated with a water spraying port of the water spraying equipment.
Because the compressor in the embodiment of the present application is provided with the rotor blade in any of the embodiments, the compressor provided by the present application has at least all the advantages of the rotor blade, and is not described in detail herein.
The application also provides a wet compression method which is applied to the air compressor in the embodiment, and the method comprises the following steps:
when the compressor is operated, water is injected into the compressor through the water injection holes 111 of each rotor blade according to a preset mass flow rate and a preset water drop size.
When the compressor is in wet compression, water is injected into the compressor, the water can reduce the temperature of air in the compressor, the air temperature is reduced, and the compression degree of the compressor on the air can be improved, so that the performance of the compressor is improved. However, in the compression process of the compressor, if the water spraying amount is small, the temperature of the air cannot be sufficiently reduced, and the compression performance of the compressor cannot be improved to the maximum extent; if the water spray is large, the water is still in a liquid state after flowing out of the air compressor along with the air flow from the air outlet of the air compressor, and the combustion of the combustion chamber of the gas turbine is disturbed. Therefore, it is necessary to control the flow rate of water injected into the compressor by the water injection device so that the air temperature inside the compressor can be maximally reduced and simultaneously can be completely vaporized at the air outlet of the compressor.
In the embodiment of the application, the preset mass flow rate can be calculated by the following formula (1):
W＝DM(1)
Where W represents the sum of the mass flow rates of water injected by the respective water injection holes 111, D represents the moisture content of saturated air at the compressor outlet, and M is the mass flow rate of the air flow through the compressor. The air outlet condition refers to the air pressure and the temperature of the air outlet of the air compressor in the working state.
Wherein W is a preset mass flow, which represents the sum of the mass of water injected by each water injection hole 111 in unit time, and the water injected by each water injection hole 111 in unit time can sufficiently cool the air flowing into the compressor in unit time.
After determining the sum of the mass of water injected by each of the water injection holes 111 in a unit time, it is also necessary to consider the size of water droplets injected by each of the water injection holes 111, and if the water droplets are large, the air entering the compressor in a unit time can be sufficiently cooled, but due to the large water droplets, the water droplets remain in a liquid state when they follow the air flow to the air outlet of the compressor, and the subsequent combustion will be disturbed. Therefore, the diameter of the water droplets sprayed from each of the water spray holes 111 can be controlled so that the water droplets sprayed from each of the water spray holes 111 can be completely vaporized when reaching the air outlet of the compressor.
In the embodiment of the application, the preset water drop diameter can be calculated according to the following formula (2):
wherein d represents the diameter of water drops sprayed by each water spray hole 111, L represents the distance between the water spray hole 111 and the combustion chamber of the gas turbine, A is the throat area of a last-stage stator blade of the gas compressor, ρ is the air density of the gas inlet of the gas compressor, pi C is the pressure ratio of the gas compressor, k is the air specific heat ratio, 1.4 is taken, C is the evaporation coefficient of the water drops, and pi is the circumferential rate constant.
Through the formulas (1) and (2), the preset flow and the preset water drop diameter can be determined. According to the application, water is sprayed into the air compressor according to the preset mass flow and the preset water drop diameter, so that the air entering the air compressor can be sufficiently cooled, and the water drops sprayed by the water spray holes 111 can be completely vaporized at the air outlet position of the air compressor. In addition, the water drops can absorb heat after vaporization, so that the temperature of the air flow at the air outlet of the air compressor is reduced, the combustion temperature of the combustion chamber is further reduced, the content of H 2 O in the air flow is increased, and the emission of the gas turbine can be reduced.
In the embodiment of the present application, the water is pure water, and the pure water is used in wet compression, so that the water drops sprayed from the water spray holes 111 can be prevented from damaging and corroding the internal structure of the compressor.
In the embodiment of the present application, the water pressure of each water spraying hole 111 is greater than or equal to the air pressure in the compressor flow passage. The water pressure of each water spraying hole 111 is set to be larger than the air pressure in the air compressor flow passage, so that water drops can be ensured to be incident into the air compressor flow passage.
According to the wet compression method provided by the embodiment of the application, water is sprayed into the air compressor according to the preset mass flow and the preset water drop diameter, so that the air entering the air compressor can be sufficiently cooled, and meanwhile, the water drops sprayed by the water spray holes 111 can be completely vaporized at the air outlet position of the air compressor. In addition, the water drops can absorb heat after vaporization, so that the temperature of the air flow at the air outlet of the air compressor is reduced, the combustion temperature of the combustion chamber is further reduced, the content of H 2 O in the air flow is increased, and the emission of the gas turbine can be reduced.
The foregoing description is only of the optional embodiments of the present application, and is not intended to limit the scope of the application, and all the equivalent structural changes made by the description of the present application and the accompanying drawings or the direct/indirect application in other related technical fields are included in the scope of the application.
Claims (10)
1. A rotor blade for use in a compressor, comprising:
Blade body, the blade body includes:
The blade root is used for being arranged on a rotating shaft of the air compressor, the blade root is provided with a water inlet, the water inlet is used for being communicated with a water outlet on the rotating shaft, and the water outlet of the rotating shaft is communicated with a water spraying port of water spraying equipment;
The blade top is provided with a plurality of water spraying holes, a water spraying flow passage is arranged in the blade body, and each water spraying hole is communicated with the water inlet through the water spraying flow passage.
2. The rotor blade according to claim 1, wherein each of the water spray holes is uniformly provided along a length direction of the tip, and each of the water spray holes is oriented in the same direction as an extending direction of the tip.
3. The rotor blade of claim 1 wherein a plurality of said water inlets and said water spray channels are provided, each of said water inlets and each of said water spray channels being in one-to-one correspondence, each of said water spray channels communicating at an end adjacent said tip.
4. The rotor blade according to claim 1, wherein each of the water spray holes is hole-like or slit-like.
5. A compressor provided with at least one rotor blade according to any one of claims 1-4;
the compressor also comprises a rotating shaft, wherein the rotating shaft is provided with a water outlet, each rotor blade is arranged on the rotating shaft, and the water inlet of each rotor blade is communicated with the water outlet on the rotating shaft;
The water outlet of the rotating shaft is communicated with a water spraying port of the water spraying equipment.
6. A wet compression method for use with a compressor as set forth in claim 5, said method comprising:
when the air compressor operates, water is sprayed into the air compressor through the water spraying holes of each rotor blade according to the preset mass flow and the preset water drop size.
7. The wet compression method of claim 6, wherein the predetermined mass flow is calculated by the following formula: w=dm;
Wherein W represents the sum of the mass flow rates of the water spray holes, D represents the moisture content of saturated air under the condition of the air outlet of the air compressor, and M is the mass flow rate of air flow passing through the air compressor.
8. The wet compression method of claim 6, wherein the predetermined water droplet size is calculated according to the following formula:
Wherein d represents the diameter of water drops sprayed by each water spray hole, L represents the distance between the water spray hole and the combustion chamber of the gas turbine, A is the throat area of a last-stage stator blade of the gas compressor, ρ is the air density of the gas inlet of the gas compressor, pi C is the supercharging ratio of the gas compressor, k is the air specific heat ratio, 1.4 is taken, C is the evaporation coefficient of the water drops, and pi is the circumference rate constant.
9. A wet compression method as claimed in any one of claims 6 to 8 wherein the water is pure water.
10. A wet compression method as claimed in any one of claims 6 to 8 wherein the water pressure of each of the water spray holes is greater than the air pressure in the compressor flow passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410038388.8A CN117905725A (en) | 2024-01-10 | 2024-01-10 | Rotor blade, compressor and wet compression method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410038388.8A CN117905725A (en) | 2024-01-10 | 2024-01-10 | Rotor blade, compressor and wet compression method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117905725A true CN117905725A (en) | 2024-04-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410038388.8A Pending CN117905725A (en) | 2024-01-10 | 2024-01-10 | Rotor blade, compressor and wet compression method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117905725A (en) |
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2024
- 2024-01-10 CN CN202410038388.8A patent/CN117905725A/en active Pending
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