Flow mixer for gas turbine power plant and natural gas pressure regulating method

Abstract

The invention discloses a flow mixer for a gas turbine power plant and a natural gas pressure regulating method. The flow mixer comprises a shell unit, and the shell unit comprises a shell assembly, a gas inlet pipe assembly arranged on the shell assembly, a gas outlet assembly arranged on the shell assembly and a fixing piece arranged in the shell assembly. The mounting unit comprises a first fixing shaft assembly arranged on the fixing piece, a connecting assembly arranged on the first fixing shaft assembly and a second fixing shaft assembly arranged on the connecting assembly. The mixing unit comprises a sleeve assembly rotationally arranged on the fixed shaft assembly I, a stirring assembly I arranged on the sleeve assembly, a stirring assembly II arranged on the sleeve assembly, a transmission assembly rotationally arranged on the connecting assembly and a stirring assembly III rotationally arranged. According to the flow mixer for the gas turbine power plant and the natural gas pressure regulating method, the flow speed of gas is changed through the arrangement of the shell assembly; and meanwhile, the speed difference between the airflow at the mixing section I and the airflow at the accelerating section is more obvious, so that the double air sources can be quickly and uniformly mixed.

Description

Technical Field

[0001] The invention relates to the technical field of gas blending, and in particular to a flow mixer for a gas turbine power plant and a natural gas pressure regulating method. Background Art

[0002] When the gas turbine is operating normally, it is necessary to ensure that the natural gas pressure at the inlet of the front module reaches a certain value and the natural gas pressure is stable. When the natural gas pressure at the inlet of the pressure regulating station is low, the gas turbine will not be able to operate. When the natural gas pressure at the inlet of the pressure regulating station is high, the pressure regulating valve of the pressure regulating station will operate unstably, which may easily cause the unit to stop.

[0003] When the gas turbine is operating normally, a single gas source can be input and the pressure can be adjusted directly; however, when dual gas sources are input, the dual gas sources need to be fully mixed, and then the pressure of the mixed dual gas sources needs to be adjusted. The use of dual gas sources may involve the use of two different fuels (such as natural gas and coal gas, etc.) as fire sources to achieve energy conservation and emission reduction. By optimizing the combustion process and adjusting the fuel ratio, gas turbine power plants can reduce pollutant emissions and improve energy efficiency, which meets the current global demand for clean and low-carbon energy; when dual gas sources such as natural gas and liquefied petroleum gas are mixed unevenly, a high concentration of combustible gas mixture may be formed in some areas. This mixture is very likely to cause explosions or fires when encountering open flames, electric sparks or other ignition sources, seriously threatening the safety of life and property. Summary of the invention

[0004] In view of the problem that the existing flow mixers used in gas turbine power plants are unable to fully mix the dual gas sources, the present invention is proposed.

[0005] Therefore, the present invention provides a flow mixer for a gas turbine power plant and a natural gas pressure regulating method, the purpose of which is to solve the technical problem that dual gas sources cannot be fully mixed.

[0006] In order to solve the above technical problems, the present invention provides the following technical solution: comprising a housing unit, a mounting unit, and a mixing unit.

[0007] The housing unit comprises a housing component, an air inlet pipe component arranged on the housing component, an air outlet component arranged on the housing component, and a fixing member arranged in the housing component.

[0008] The installation unit includes a fixed shaft component 1 arranged on the fixing member, a connecting component arranged on the fixed shaft component 1, and a fixed shaft component 2 arranged on the connecting component and connected to the inner wall of the housing component.

[0009] The mixing unit includes a sleeve assembly rotatably arranged on the fixed shaft assembly 1, a stirring assembly 1 arranged on the sleeve assembly, a stirring assembly 2 arranged on the sleeve assembly, a transmission assembly rotatably arranged on the connecting assembly and coordinated with the stirring assembly 2, and a stirring assembly 3 rotatably arranged on the fixed shaft assembly 2 and transmission-connected to the transmission assembly.

[0010] As a preferred solution of the flow mixer for a gas turbine power plant described in the present invention, the shell assembly includes a mixing section 1 connected to the intake pipe assembly, an acceleration section connected to the mixing section 1, and a mixing section 2 connected to the acceleration section.

[0011] As a preferred solution of the flow mixer for a gas turbine power plant described in the present invention, the fixed shaft assembly 1 includes a fixed shaft arranged on the fixed member, and a limiting ring 1 arranged on the fixed shaft and movably connected to the sleeve assembly.

[0012] As a preferred solution of the flow mixer for a gas turbine power plant described in the present invention, the connecting assembly includes a connecting shaft arranged on the fixed shaft and connected to the second fixed shaft assembly, a second limiting ring arranged on the connecting shaft, a mounting block arranged on the connecting shaft, and a gear rotatably arranged on the mounting block.

[0013] As a preferred solution of the flow mixer for a gas turbine power plant described in the present invention, the sleeve assembly includes a sleeve rotatably arranged on the limiting ring 1, and an inner gear ring 1 arranged on the inner circumference of the sleeve and meshing with the transmission assembly.

[0014] As a preferred solution of the flow mixer for a gas turbine power plant of the present invention, the stirring component 1 includes a fixing ring arranged on the outer peripheral surface of the sleeve, and a stirring blade arranged on the fixing ring.

[0015] As a preferred solution of the flow mixer for a gas turbine power plant of the present invention, the second stirring component includes a connecting ring arranged on the outside of the sleeve, and blades arranged on the outer peripheral surface of the connecting ring.

[0016] As a preferred solution of the mixer for a gas turbine power plant described in the present invention, the transmission assembly includes a rotating cylinder 1 rotatably arranged on the limiting ring 2, a rotating cylinder 2 arranged on the rotating cylinder 1, an outer gear ring 1 arranged on the rotating cylinder 1 and meshing with the inner gear ring 1, and an outer gear ring 2 arranged on the rotating cylinder 2 and meshing with the gear.

[0017] Wherein, the outer diameter of the second rotating cylinder is smaller than the outer diameter of the first rotating cylinder.

[0018] The beneficial effects of the present invention are as follows: a shell unit, a mounting unit, and a mixing unit are provided, and different gas sources are respectively introduced into the shell assembly for mixing through the air inlet pipe assembly, and the flow rate of the gas is changed by the setting of the shell assembly, so that the gas can be mixed quickly and evenly; at the same time, the incoming airflow continuously impacts the stirring assembly one, so that the sleeve assembly and the stirring assembly two rotate as a whole, and at the same time, the airflow accelerates the rotation speed of the stirring assembly two when accelerating through the acceleration section, so that the speed difference of the airflow at the mixing section one and the acceleration section is more obvious, and the airflow quickly enters the mixing section two; the gas flow rate entering the mixing section two is reduced, and at the same time, the speed of the sleeve assembly is reduced and transmitted to the stirring assembly three through the transmission assembly, and the speed difference generated further causes turbulence between the airflows, and the mixing of the airflows is more thorough, and at this time, the speed of the gas entering the mixing section two is reduced, and the impact force on the stirring assembly three is reduced, and the gas flow rate is adapted to the stirring speed of the stirring assembly three, and will not cause damage to the stirring assembly three.

[0019] Another object of the present invention is to provide a natural gas pressure regulating method, the purpose of which is to solve the technical problem that unstable gas source pressure leads to unstable operation of gas turbine power plant units.

[0020] To solve the above technical problems, the present invention provides the following technical solutions: including the mixer for a gas turbine power plant as described in any one of the above items, and the method includes gas source mixing, gas source processing, gas source pressure regulation and gas source input.

[0021] Gas source mixing: mixing dual gas sources by setting up a mixer, or transporting a single gas source.

[0022] Gas source processing: the gas source is processed through the filter and the metering unit, and the processed gas source is transported to the pressure control unit for regulation.

[0023] Gas source pressure regulation: the pressure regulating unit regulates the pressure of the gas source controlled by the pressure control unit.

[0024] The gas source input delivers the regulated gas source that meets the pressure value to the inlet of the gas turbine front module.

[0025] As a preferred solution of the natural gas pressure regulation method described in the present invention, the gas source pressure regulation is divided into two steps, wherein the pressure of the high-pressure gas source of the post-pressure regulating unit one is regulated, and the pressure of the low-pressure gas source is jointly regulated by the post-pressure regulating unit two and the booster.

[0026] The beneficial effects of the present invention are as follows: a mixer is set at the inlet to facilitate dual-gas source operation, and when a single-gas source is used, a bypass is used for operation; the dual-gas sources enter the filtering and metering unit to remove impurities and measure the gas consumption; the pressure regulating unit performs branch transportation according to the gas source pressure conditions, and if the pressure is relatively high, the pressure reduction is automatically turned on and then the pressure regulation is entered; if the pressure is within a certain range, the pressure regulation is directly entered; if the pressure is less than a certain value, the bypass is directly passed and the next step of pressure regulation is entered; the gas source after pressure regulation maintains a stable pressure and enters the booster again, and the pressure set by the booster can meet the pressure requirement of the pressure regulating station, thereby ensuring stable operation of the unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0028] Figure 1 It is a schematic diagram of the overall structure of the first embodiment of the present invention.

[0029] Figure 2 A partial cross-sectional view of the first embodiment of the present invention Figure 1 .

[0030] Figure 3 A partial cross-sectional view of the first embodiment of the present invention Figure 2 .

[0031] Figure 4 It is a cross-sectional view of the housing unit in the first embodiment of the present invention.

[0032] Figure 5 It is a schematic diagram of the structure of the installation unit in the first embodiment of the present invention.

[0033] Figure 6 This is a schematic diagram of the installation structure of the mixing unit in Example 1 of the present invention.

[0034] Figure 7 It is a schematic diagram of the installation structure of the sleeve assembly in the first embodiment of the present invention.

[0035] Figure 8 It is a schematic diagram of the structure of the transmission assembly in the first embodiment of the present invention.

[0036] Fig. 9 It is a schematic structural diagram of the stirring component three in the first embodiment of the present invention.

[0037] Fig.10 This is a system diagram corresponding to the method in Embodiment 3 of the present invention. DETAILED DESCRIPTION

[0038] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.

[0039] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0040] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor is it an embodiment that is mutually exclusive with other embodiments, either individually or selectively.

[0041] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0042] Example 1, reference Figure 1-6 , which is the first embodiment of the present invention, provides a flow mixer for a gas turbine power plant and a natural gas pressure regulating method, the device comprises a housing unit 100, a mounting unit 200, and a mixing unit 300. The mixed gas enters the housing unit 100 and impacts the mixing unit 300, so that the mixing unit 300 rotates in the housing unit 100, and fully mixes and stirs the mixed gas entering, so that the mixed gas is mixed more thoroughly.

[0043] The housing unit 100 includes a housing assembly 101, an air inlet pipe assembly 102 disposed on the housing assembly 101, an air outlet assembly 103 disposed on the housing assembly 101, and a fixing member 104 disposed in the housing assembly 101. Different gas sources are introduced into the housing assembly 101 through the air inlet pipe assembly 102 for mixing, and the flow rate of the gas is changed by the setting of the housing assembly 101, so that the gas can be mixed quickly and evenly.

[0044] Preferably, the housing assembly 101 includes a mixing section 101a connected to the air inlet pipe assembly 102, an acceleration section 101b connected to the mixing section 101a, and a mixing section 101c connected to the acceleration section 101b. The cross-sectional area of ​​the mixing section 101a is greater than the cross-sectional area of ​​the acceleration section 101b, and the cross-sectional area of ​​the mixing section 101c is greater than the cross-sectional area of ​​the acceleration section 101b; the flow rate of the airflow when passing through the acceleration section 101b is greater than the flow rate in the mixing section 101a and the mixing section 101c, thereby forming a velocity difference, and the turbulence of the two gases increases under the joint action of the housing assembly 101 and the mixing unit 300, so that the mixing of the two gases is more thorough and uniform; at the same time, the pipe diameter of the mixing section 101a becomes larger, and the reduction of the gas flow rate also reduces the impact force of the gas impacting the housing assembly 101, making the housing assembly 101 more stable.

[0045] Furthermore, the air inlet pipe assembly 102 includes an air inlet pipe 1 102a and an air inlet pipe 2 102b; wherein the air inlet pipe 1 102a and the air inlet pipe 2 102b are both provided with air holes 102c, and the positions of the air holes 102c on the air inlet pipe 1 102a and the air inlet pipe 2 102b are staggered, so that the two gases are staggeredly mixed when the two gases enter, and at the same time, the air holes 102c of the air inlet pipe 1 102a face downward, and the air holes 102c of the air inlet pipe 2 102b face upward, and under the joint action of the air inlet pipe 1 102a and the air inlet pipe 2 102b, the stirring assembly 1 302 is driven to rotate, so that the two gases are fully mixed in the housing assembly 101. The air holes 102c are all arranged obliquely, which can better achieve gas mixing.

[0046] Furthermore, the air outlet component 103 includes an air outlet pipe 103 a disposed on the housing component 101 , and a speed control valve 103 b disposed on the air outlet pipe 103 a .

[0047] The installation unit 200 includes a fixed shaft component 1 201 disposed on the fixing member 104, a connecting component 202 disposed on the fixed shaft component 1 201, and a fixed shaft component 2 203 disposed on the connecting component 202 and connected to the inner wall of the housing component 101. The fixed shaft component 1 201 and the fixed shaft component 2 203 are connected by the connecting component 202, so as to facilitate the coordinated installation of the mixing unit 300.

[0048] The mixing unit 300 includes a sleeve assembly 301 rotatably disposed on a fixed shaft assembly 1 201, a stirring assembly 1 302 disposed on the sleeve assembly 301, a stirring assembly 2 303 disposed on the sleeve assembly 301, a transmission assembly 304 rotatably disposed on the connection assembly 202 and coordinated with the stirring assembly 2 303, and a stirring assembly 3 305 rotatably disposed on the fixed shaft assembly 203 and transmission-connected to the transmission assembly 304. The transmission assembly 304 transmits the motion of the sleeve assembly 301 to the stirring assembly 3 305, and simultaneously realizes the rotation of the stirring assembly 1 302 and the stirring assembly 2 303 to drive the stirring assembly 3 305 to rotate, and a speed difference is generated between the stirring assembly 3 305 and the stirring assembly 1 302 and the stirring assembly 2 303.

[0049] During use, different gas sources are introduced into the housing assembly 101 through the air inlet pipe assembly 102 for mixing. The flow rate of the gas is changed by the setting of the housing assembly 101, so that the gas can be mixed quickly and evenly; at the same time, the incoming airflow continuously impacts the stirring assembly 1 302, so that the sleeve assembly 301 and the stirring assembly 2 303 rotate as a whole. At the same time, when the airflow accelerates through the acceleration section 101b, the rotation speed of the stirring assembly 2 303 is accelerated, so that the speed difference of the airflow at the mixing section 101a and the acceleration section 101b is more obvious. The airflow enters the mixing section 2 101c quickly; the gas flow rate entering the mixing section 2 101c decreases, and at the same time, the speed of the sleeve assembly 301 is reduced and transmitted to the stirring assembly 3 305 through the transmission assembly 304, and the speed difference further causes turbulence between the airflows, and the mixing of the airflows is more thorough. At this time, the gas enters the mixing section 2 101c at a reduced speed, and the impact force on the stirring assembly 3 305 is reduced. The gas flow rate is adapted to the stirring speed of the stirring assembly 3 305, and will not cause damage to the stirring assembly 3 305.

[0050] Example 2, reference Figure 1-9 , which is the second embodiment of the present invention. This embodiment is different from the first embodiment in that the flow rate of the introduced gas impacts the stirring component 302 to generate power. When the gas impacts the stirring component 302, the airflow becomes turbulent, and at the same time, the stirring component 302 rotates, and the two introduced gases are further mixed and stirred. The rotation of the inner gear ring 1 301b drives the meshing outer gear ring 1 304c to rotate, and then the outer gear ring 2 304d rotates synchronously, and the stirring component 3 305 rotates through the transmission of the gear 202d. At this time, there is a difference between the rotation speed of the stirring component 3 305 and the rotation speed of the inner gear ring 1 301b, and the difference in the flow rate of the gas is more conducive to the full mixing of the airflow.

[0051] Compared with the first embodiment, the fixed shaft assembly 201 further comprises a fixed shaft 201a disposed on the fixing member 104, and a limiting ring 201b disposed on the fixed shaft 201a and movably connected to the sleeve assembly 301. The limiting ring 201b is used to stably limit the sleeve assembly 301 to prevent the sleeve assembly 301 from sliding; the fixed shaft 201a is provided with a fixed ring groove 201c for matching with the fixed assembly 104.

[0052] Furthermore, the connecting assembly 202 includes a connecting shaft 202a disposed on the fixed shaft 201a and connected to the second fixed shaft assembly 203, a second stop ring 202b disposed on the connecting shaft 202a, a mounting block 202c disposed on the connecting shaft 202a, and a gear 202d rotatably disposed on the mounting block 202c. The structure of the second fixed shaft assembly 203 is the same as that of the first fixed shaft assembly 201; the stirring assembly 305 is rotatably disposed on the second fixed shaft assembly 203.

[0053] Preferably, the sleeve assembly 301 includes a sleeve 301a rotatably disposed on the stop ring 201b, and an inner gear ring 301b disposed on the inner circumference of the sleeve 301a and meshing with the transmission assembly 304. The gas entering the mixing section 101a impacts the stirring assembly 302, causing the stirring assembly 302 to rotate, thereby driving the sleeve 301a and the inner gear ring 301b to rotate; the flow rate of the introduced gas impacts the stirring assembly 302 to generate power, and when the gas impacts the stirring assembly 302, the airflow is turbulent, and the stirring assembly 302 is rotated at the same time, so that the two introduced gases are further mixed and stirred, and the mixing efficiency is further improved.

[0054] In particular, the stirring assembly 302 includes a fixed ring 302a disposed on the outer peripheral surface of the sleeve 301a, and a stirring blade 302b disposed on the fixed ring 302a. The blade width of the stirring blade 302b is distributed along the fixed ring 302a, so that the area of ​​the gas impact on the stirring blade 302b is large enough to drive the stirring blade 302b to rotate; there are multiple stirring blades 302b; there are multiple stirring assemblies 302, and the stirring blades 302b of the multiple stirring assemblies 302 are staggered, and the multiple groups of stirring assemblies 302 are all located at the air intake pipe assembly 102, and the simultaneous impact of the gas introduced through the air intake pipe assembly 102 makes the rotation of the stirring assembly 302 more stable.

[0055] Furthermore, the second stirring assembly 303 includes a connecting ring 303a disposed on the outside of the sleeve 301a, and a fan blade 303b disposed on the outer peripheral surface of the connecting ring 303a. When the gas flows through the acceleration section 101b, the gas flow speed is accelerated, which drives the fan blade 303b to rotate, so that the fan blade 303b drives the connecting ring 303a and the sleeve 301a to rotate rapidly. Since the gas enters the mixing section 101a, the gas impacts the stirring blade 302b and causes energy loss, the speed is reduced, and the internal space of the mixing section 101a is large, the gas itself will further slow down. At this time, the speed of the stirring blade 302b gradually decreases. When the airflow accelerates through the acceleration section 101b, the fan blade 303b is driven to drive the connecting ring 303a and the sleeve 301a to rotate rapidly, thereby causing the stirring blade 302b to rotate rapidly, so that the mixing of the gas in the mixing section 101a is more uniform; at the same time, due to the difference between the gas flow rates in the mixing section 101a and the acceleration section 101b, turbulence occurs in the gas flow, and the gas can be further mixed.

[0056] Preferably, the transmission assembly 304 includes a rotating cylinder 1 304a rotatably arranged on the limiting ring 202b, a rotating cylinder 2 304b arranged on the rotating cylinder 1 304a, an outer gear ring 1 304c arranged on the rotating cylinder 1 304a and meshing with the inner gear ring 1 301b, and an outer gear ring 2 304d arranged on the rotating cylinder 2 304b and meshing with the gear 202d. The inner gear ring 1 301b rotates to drive the meshing outer gear ring 1 304c to rotate, thereby causing the outer gear ring 2 304d to rotate synchronously, and the stirring assembly 3 305 is rotated through the transmission of the gear 202d. At this time, there is a difference between the rotation speed of the stirring assembly 3 305 and the rotation speed of the inner gear ring 1 301b, and the flow rate of the gas is different, which is more conducive to the full mixing of the gas flow.

[0057] The outer diameter of the second rotating cylinder 304b is smaller than the outer diameter of the first rotating cylinder 304a. The height difference between the second rotating cylinder 304b and the first rotating cylinder 304a is used to match the installation of the gear 202d, so that the gear 202d can mesh with the second outer gear ring 304d and the second inner gear ring 305c.

[0058] Furthermore, the stirring component three 305 includes a rotating sleeve 205a rotatably arranged on the fixed shaft component two 203, a mixing stirring blade 305b arranged on the rotating sleeve 205a, and an inner gear ring 2 305c arranged at one end of the rotating sleeve 205a; an inner annular groove 305d is provided on the inner circumference of the rotating sleeve 205a for rotationally connecting with the fixed shaft component two 203.

[0059] The remaining structures are the same as those of Example 1.

[0060] Example 3, reference Fig.10 , which is the third embodiment of the present invention, is based on the flow mixer for a gas turbine power plant provided in the first and second embodiments, and includes a flow mixer for a gas turbine power plant, and the method includes gas source mixing, gas source processing, gas source pressure regulation, and gas source input. The above method is implemented by a delivery system 400.

[0061] Gas source mixing, by setting up a mixer to mix dual gas sources, or to transport a single gas source; gas source mixing is achieved through the gas source mixing unit 401, when the mixed gas source enters through the inlet, the electric valve 2 401a controls the mixed gas source to enter the mixer, and the mixed gas source passing through the mixer passes through the gas source mixing unit 401 smoothly through the electric valve 2 401b; when a single gas source enters through the inlet, it is processed by the electric valve 3 401c, so that the single gas source passes through the gas source mixing unit 401 smoothly.

[0062] Gas source processing, the gas source is processed by the filter and the metering unit, and the processed gas source is delivered to the pressure control unit for adjustment. The gas source that successfully passes through the gas source mixing unit 401 enters the filter and the metering unit in turn for processing. The filter removes impurities and the metering unit is used to measure the gas consumption.

[0063] Gas source pressure regulation, the pressure regulating unit regulates the pressure of the gas source controlled by the pressure control unit; the pressure value range of the gas source passing through the metering unit is large, and the regulating unit 402 regulates the gas source pressure value. First, when the pressure reducing regulating valve 402a detects that the output gas source pressure value is greater than the applicable pressure value range, the pressure reducing regulating valve 402a opens, and the gas source enters the post-pressure regulating unit 403 via the pressure reducing valve and the electric valve 402d; when the pressure reducing regulating valve 402b detects that the output gas source pressure is within the applicable pressure value range, the gas source directly enters the post-pressure regulating unit 403; when the pressure reducing regulating valve 402c detects that the gas source pressure is lower than the applicable pressure value range, the gas source enters the post-pressure regulating unit 404.

[0064] The gas source input is used to deliver the regulated gas source that meets the pressure value to the inlet of the gas turbine front module. The regulated gas source pressure is maintained between 2Mpa and 6Mpa.

[0065] Furthermore, the pressure regulation of the gas source is divided into two steps, firstly regulating the pressure of the high-pressure gas source, and then regulating the pressure of the low-pressure gas source; the high-pressure gas source is regulated by the post-pressure regulating unit 1 403, and the low-pressure gas source is regulated by the post-pressure regulating unit 2 404 and the booster. The post-pressure regulating unit 1 403 and the post-pressure regulating unit 2 404 have the same structure, and the post-pressure regulating unit 2 404 is connected in series by a shut-off valve 404a and a pressure regulating valve 404b; the gas sources passing through the post-pressure regulating unit 1 403 and the post-pressure regulating unit 2 404 enter the entrance of the front module through the manual door 1 405 and the manual door 2 406 respectively.

[0066] During use, the gas source after decompression and the gas source in a certain pressure range enter the post-pressure regulating unit 1 403 to ensure safe and stable operation of the unit. The gas source with lower pressure enters the post-pressure regulating unit 2 404. The gas source after pressure regulation maintains a stable pressure and enters the booster again. The set pressure of the booster can meet the pressure demand of the pressure regulating station to ensure stable operation of the unit.

[0067] The remaining structure is the same as that of Example 2.

[0068] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure of the execution function described herein, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

[0069] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment may not be described (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention).

[0070] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A flow mixer for a gas turbine power plant, characterized in that: include, A housing unit (100) comprises a housing component (101), an air inlet pipe component (102) arranged on the housing component (101), an air outlet component (103) arranged on the housing component (101), and a fixing member (104) arranged in the housing component (101); The mounting unit (200) comprises a first fixed shaft component (201) arranged on the fixing member (104), a connecting component (202) arranged on the first fixed shaft component (201), and a second fixed shaft component (203) arranged on the connecting component (202) and connected to the inner wall of the housing component (101); and, The mixing unit (300) comprises a sleeve assembly (301) rotatably disposed on the fixed shaft assembly (201), a stirring assembly (302) disposed on the sleeve assembly (301), a stirring assembly (303) disposed on the sleeve assembly (301), a transmission assembly (304) rotatably disposed on the connecting assembly (202) and cooperating with the stirring assembly (303), and a stirring assembly (305) rotatably disposed on the fixed shaft assembly (203) and transmission-connected to the transmission assembly (304).

2. The flow mixer for a gas turbine power plant according to claim 1, characterized in that: The housing component (101) comprises a mixing section 1 (101a) connected to the air intake pipe component (102), an acceleration section (101b) connected to the mixing section 1 (101a), and a mixing section 2 (101c) connected to the acceleration section (101b).

3. The flow mixer for a gas turbine power plant according to claim 2, characterized in that: The fixed shaft assembly (201) comprises a fixed shaft (201a) arranged on the fixing member (104), and a limiting ring (201b) arranged on the fixed shaft (201a) and movably connected to the sleeve assembly (301).

4. The flow mixer for a gas turbine power plant according to claim 3, characterized in that: The connecting assembly (202) comprises a connecting shaft (202a) arranged on the fixed shaft (201a) and connected to the second fixed shaft assembly (203), a second limiting ring (202b) arranged on the connecting shaft (202a), a mounting block (202c) arranged on the connecting shaft (202a), and a gear (202d) rotatably arranged on the mounting block (202c).

5. The flow mixer for a gas turbine power plant according to claim 4, characterized in that: The sleeve assembly (301) comprises a sleeve (301a) rotatably arranged on the limiting ring (201b), and an inner gear ring (301b) arranged on the inner circumferential surface of the sleeve (301a) and meshing with the transmission assembly (304).

6. The flow mixer for a gas turbine power plant according to claim 5, characterized in that: The stirring component (302) comprises a fixing ring (302a) arranged on the outer peripheral surface of the sleeve (301a), and a stirring blade (302b) arranged on the fixing ring (302a).

7. The flow mixer for a gas turbine power plant according to claim 6, characterized in that: The second stirring component (303) comprises a connecting ring (303a) arranged on the outside of the sleeve (301a), and a fan blade (303b) arranged on the outer peripheral surface of the connecting ring (303a).

8. The flow mixer for a gas turbine power plant according to claim 7, characterized in that: The transmission assembly (304) comprises a rotating cylinder (304a) rotatably arranged on the second limiting ring (202b), a rotating cylinder (304b) arranged on the rotating cylinder (304a), an outer gear ring (304c) arranged on the rotating cylinder (304a) and meshing with the inner gear ring (301b), and an outer gear ring (304d) arranged on the rotating cylinder (304b) and meshing with the gear (202d); Wherein, the outer diameter of the second rotating cylinder (304b) is smaller than the outer diameter of the first rotating cylinder (304a).

9. A natural gas pressure regulating method, characterized in that: The method comprises the flow mixer for a gas turbine power plant according to any one of claims 1 to 8, comprising: Gas source mixing: mixing dual gas sources by setting up a mixer, or delivering a single gas source; Gas source processing: the gas source is processed through a filter and a metering unit, and the processed gas source is transported to a pressure control unit for regulation; Gas source pressure regulation, the pressure regulating unit regulates the pressure of the gas source controlled by the pressure control unit; The gas source input delivers the regulated gas source that meets the pressure value to the inlet of the gas turbine front module.

10. The natural gas pressure regulating method according to claim 9, characterized in that: The gas source pressure regulation is divided into two steps, firstly, the pressure of the high-pressure gas source is regulated, and then the pressure of the low-pressure gas source is regulated.

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