CN220451987U - Pneumatic cone kettle turbine of green annular space high-pressure regulating turbine mechanism - Google Patents

Abstract

The utility model discloses a pneumatic cone kettle turbine of a green annular space high-pressure regulating turbine mechanism, which comprises a second cone volute and a high-pressure pneumatic cone kettle turbine which are connected in a rotating way; the second conical volute is internally provided with a turbine cavity for accommodating the conical kettle, and the second conical volute is provided with a pressure relief accelerating tube which is communicated with a tangent line of the turbine cavity for accommodating the conical kettle; the high-pressure pneumatic taper kettle turbine comprises a turbine power output shaft, a turbine impact impeller, a second turbine taper kettle body and an air outlet are sequentially arranged on the turbine power output shaft along the axial direction, and the middle parts of the turbine impact impeller, the second turbine taper kettle body and the air outlet are sequentially communicated along the air flow direction; the second turbine cone kettle body is also internally provided with a first rotation reducing rib; the exhaust outlet is arranged towards the coaxial line with the turbine power output shaft; the turbine impact impeller and the second turbine cone kettle body are both positioned in the turbine cavity of the accommodating cone kettle. The pneumatic cone kettle turbine of the green ring high pressure turbine mechanism provided by the utility model can be used by being adapted to a green ring air conditioner, and meanwhile, the energy loss is reduced, and the energy conversion rate is greatly improved.

Description

A gas-powered conical kettle turbine with a green-ring air-conditioning high-pressure turbine mechanism

Technical field

The utility model relates to the field of high-pressure turbines, and in particular to a gas-powered cone kettle turbine of a green ring air-conditioning high-pressure turbine mechanism. It is mainly used in application scenarios such as "green air conditioning" that require converting high-pressure air energy into other energy.

Background technique

The "Green Ring Air Conditioning" projects disclosed with patent application numbers 2021113567369, 2021113580630, and 2021113567373 have passed simulation mathematical research at Tsinghua University (a research and development report can be provided).

After equipping the "Green Ring Air Conditioning" project with its high-pressure turbine mechanism and conducting mathematical research, we found:

1) It is impossible to find a high-pressure turbine mechanism that is suitable for the structure of the "green ring air conditioner". If the existing high-pressure turbine mechanism must be used, the structure of the "green ring air conditioner" will need to be significantly modified, which defeats the original intention and is not worth the loss;

2) Due to the first reason, in the original "green ring air conditioner" design plan, existing general technology was used to design a special high-pressure turbine mechanism according to the characteristics of "green ring air conditioner". However, the energy conversion efficiency still remains at the current level:

At the front end of the high-pressure turbine mechanism, the efficiency of converting gas energy into mechanical energy in the "high-pressure turbine" is generally about 75%. The main energy losses are about -15% of gas leakage and impact between the turbine and the casing, and about -5% of the tail vortex. Other losses are about -5%. The efficiency of converting gas energy into mechanical energy in the "driven turbine" at the rear end of the high-pressure turbine mechanism is generally around 75%. Therefore, the comprehensive energy conversion rate of the high-pressure turbine mechanism is about 0.75*0.75=56%.

From the above research findings, it can be seen that if you make the sacrifice of changing the structure of the "green ring air conditioner", it is an undesirable choice to equip the high-pressure turbine mechanism that is already on the market, but it cannot be found on the market and its efficiency is not satisfactory. After comprehensive consideration, it is urgent to develop an advanced high-pressure turbine mechanism suitable for use in "green ring air conditioners". The high-pressure turbine mechanism includes a gas power turbine located at the front end and a driven turbine located at the rear end. The energy conversion rates of both need to be improved.

Utility model content

The purpose of this utility model is to provide a gas-powered conical kettle turbine with a high-pressure turbine mechanism for a green-ring air conditioner, which can be adapted to the use of a "green-ring air conditioner" while reducing energy loss and significantly improving the energy conversion rate.

In order to achieve the above purpose, the present utility model provides a gas-powered conical kettle turbine of a green-ring air-conditioning high-pressure turbine mechanism, which includes a second conical volute and a high-pressure pneumatic conical kettle turbine that are rotationally connected to each other; the second conical volute There is a cavity for accommodating the conical pot turbine, and the second conical volute is provided with a pressure relief accelerating tube that is tangentially connected to the cavity for accommodating the conical pot turbine; the high-pressure pneumatic conical pot turbine includes a turbine power output shaft, and the turbine power output The shaft is provided with a turbine impact impeller, a second turbine conical kettle body and an air exhaust port in sequence along the axial direction, and the middle portions of the three are sequentially connected along the air flow direction; the second turbine conical kettle body is also provided with a first anti-rotation fin; the exhaust The port is arranged coaxially with the turbine power output shaft; the turbine impact impeller and the second turbine conical kettle body are located in the turbine cavity containing the conical kettle.

As a further improvement of the present invention, a third turbine cover plate and a fourth turbine cover plate are respectively provided on both sides of the turbine impact impeller, and the fourth turbine cover plate is located between the turbine impact impeller and the second turbine cone body.

As a further improvement of the present utility model, the pressure relief accelerating tube includes a high-pressure gas nozzle located at its output end. The cross-sectional area of the gas channel in the high-pressure gas nozzle gradually decreases along the direction of the air flow. The high-pressure gas nozzle is located in the cavity of the turbine containing the conical pot. Inside; the outer edge of the turbine impact impeller is provided with a clearance gap that matches the high-pressure gas nozzle.

As a further improvement of the present invention, a decompression gas outlet is provided at one end of the cavity of the second conical volute housing the conical kettle turbine, and the exhaust port of the high-pressure pneumatic conical kettle turbine is located inside the decompression gas outlet. ; A second anti-rotation fin is connected to the inner side of the air outlet.

As a further improvement of the present invention, the second conical volute is provided with a second bearing seat, and the second bearing seat is provided with a second bearing cavity connected with the cavity containing the conical kettle turbine. The second bearing cavity There is a second bearing in contact with the third turbine cover; the second bearing seat is provided with a second shaft hole communicating with the second bearing cavity, and the turbine power output shaft passes through the second bearing and the second shaft hole; a second lubrication chamber is provided on the middle side wall of the second shaft hole, and the second lubrication chamber is connected to the outer wall of the second bearing seat through a second oil filling hole.

As a further improvement of the present invention, the second conical volute includes a second conical volute rotatingly matched with the second turbine cone casing; the inner end surface of the second conical volute is in contact with the second turbine cone casing There is a second sealing ring between the outer end faces of the body; the sealing ring is a polytetrafluoroethylene ring.

beneficial effects

Compared with the existing technology, the advantages of the gas-powered conical kettle turbine of the green-ring air-conditioning high-pressure turbine mechanism of the present utility model are:

1. For the gas-powered conical kettle turbine of the high-pressure turbine mechanism of the green ring air conditioner, the high-pressure gas enters the pressure relief accelerating tube through the electronic control valve and then passes through the high-pressure gas nozzle at the speed of V1. It is compressed and accelerated to V2 and injected into the impact turbine impact impeller. Drives the high-pressure pneumatic conical kettle turbine to rotate. The motive gas forms a vortex in the inner cavity of the turbine cone body, is decelerated by the first anti-rotation fin, and then decelerated again by the second anti-rotation fin and is discharged from the exhaust port of the high-pressure pneumatic cone turbine. Since the diameter of the exhaust port is very small, the energy of the air flow spiral driven by it is very small, so there is no need to set up a back-spray structure at the rear end.

2. Since the second conical volute is fixed, the high-pressure pneumatic conical volute turbine rotates rapidly. Therefore, it is a difficult problem to prevent gas from leaking from the micro-gap between the second conical volute and the high-pressure pneumatic cone turbine and to reduce the friction loss between them. For this purpose, two polytetrafluoroethylene (PTFE) rings are specially installed between the second cone volute and the high-pressure pneumatic cone turret, and lubricating oil is injected into it, which can effectively prevent leakage and reduce friction losses. . Two polytetrafluoroethylene (PTFE) rings can greatly increase the air flow resistance, and the presence of lubricating oil makes air leakage extremely small. The polytetrafluoroethylene ring has excellent self-lubricating function, and has excellent performance in temperature resistance, wear resistance, strength, etc., coupled with the presence of lubricating oil, the gap between the second conical volute and the high-pressure pneumatic conical kettle turbine is Friction losses are also extremely small.

3. The gas-powered conical kettle turbine of the green ring air-conditioning high-pressure turbine mechanism, because the high-pressure gas energy enters the high-pressure pneumatic conical kettle turbine, its energy destination is mainly: the rotational mechanical energy of the high-pressure pneumatic conical kettle turbine and the kinetic energy of the exhaust gas, and after the first The energy of the gas discharged after the anti-rotation fins and the second anti-rotation fin is extremely low, and the energy is basically converted into the rotational mechanical energy of the high-pressure pneumatic conical kettle turbine, which reduces energy loss. Therefore, the energy conversion rate of the gas-powered conical kettle turbine can be to about 90%.

The present invention will become clearer through the following description combined with the accompanying drawings, which are used to explain embodiments of the present invention.

Description of drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description These are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without exerting creative efforts.

Figure 1 is the structural diagram of the high-pressure turbine mechanism of the green ring air conditioner;

Figure 2 is a top view of the driven cone kettle turbine;

Figure 3 is the front view of the driven cone kettle turbine;

Figure 4 is a cross-sectional view along line A-A of Figure 2;

Figure 5 is a B-B cross-sectional view of Figure 3;

Figure 6 is a front cross-sectional view of the first tapered volute;

Figure 7 is a top cross-sectional view of the first tapered volute;

Figure 8 is a front view of the pneumatic cone turbine;

Figure 9 is a front cross-sectional view of the pneumatic cone turbine;

Figure 10 is a C-C cross-sectional view of Figure 8;

Figure 11 is a D-D cross-sectional view of Figure 8;

Figure 12 is a schematic diagram of the gas flow of the driven conical kettle turbine;

Figure 13 is a top view of the gas-powered conical kettle turbine;

Figure 14 is the front view of the gas-powered conical kettle turbine;

Figure 15 is a cross-sectional view along E-E of Figure 13;

Figure 16 is a cross-sectional view along F-F of Figure 14;

Figure 17 is a front cross-sectional view of the second tapered volute;

Figure 18 is a top cross-sectional view of the second tapered volute;

Figure 19 is a front view of the high-pressure pneumatic cone turbine;

Figure 20 is a front cross-sectional view of the high-pressure pneumatic cone turbine;

Figure 21 is a G-G cross-sectional view of Figure 19;

Figure 22 is a H-H cross-sectional view of Figure 19;

Figure 23 Schematic diagram of gas flow in a gas-powered conical kettle turbine.

Detailed ways

Embodiments of the present invention will now be described with reference to the accompanying drawings.

Example

The specific implementation mode of the present utility model is shown in Figures 2 to 12. A driven conical kettle turbine includes a first conical volute 1 and a pneumatic conical kettle turbine 2 that are rotatably connected to each other. The first conical volute 1 is provided with a pneumatic cone-shaped turbine cavity 13 , and the first conical volute 1 is provided with a pressure gas outlet 14 tangentially connected to the pneumatic cone-shaped turbine cavity 13 . The pneumatic cone turbine 2 includes a turbine power input shaft 21. The turbine power input shaft 21 is sequentially provided with a vortex suction blade 28, a first turbine cone body 24 and a turbine centrifugal impeller 22 along its axial direction, and the middle portions of the three are arranged along the airflow direction. The directions are connected in sequence. The first turbine cone body 24 is also provided with a conjoined impeller 26 . The turbine centrifugal impeller 22 is located in the pneumatic cone turbine chamber 13 . The vortex suction rotor blades 28 are in multiple pieces and are arranged around the turbine power input shaft 21 . An air suction port 281 is formed between the circumferential outer edges of adjacent vortex suction rotor blades 28 . The suction port 281 is located on the outer circumferential surface of the impeller which is composed of a plurality of vortex suction blades 28 .

The pneumatic conical pot turbine cavity 13 is provided with a vortex nozzle 16 outside the turbine centrifugal impeller 22. The vortex nozzle 16 is connected with the annular air duct in the pneumatic conical pot turbine cavity 13, and the annular air duct is connected to the pressure gas outlet 14. The compressed air vortex channel 15 is connected. A one-way poppet valve 141 is connected to the pressure gas outlet 14 .

A first turbine cover 27 is connected to the side of the vortex suction rotor 28 away from the first turbine cone body 24 . A second turbine cover 23 is connected to the side of the turbine centrifugal impeller 22 away from the first turbine cone body 24 . The first turbine cover 27 ensures that airflow is only sucked in from outside the vortex suction blade 28 .

The first cone-shaped volute 1 is provided with a first bearing seat 111. The first bearing seat 111 is provided with a first bearing cavity 1114 connected with the pneumatic conical volute turbine cavity 13. The first bearing cavity 1114 is provided with a second bearing seat 111. The turbine cover plate 23 is in contact with the first bearing 5 . The first bearing seat 111 is provided with a first shaft hole 1111 that communicates with the first bearing cavity 1114. The turbine power input shaft 21 passes through the first bearing 5 and the first shaft hole 1111. A first lubrication chamber 1112 is provided on the middle side wall of the first shaft hole 1111. The first lubrication chamber 1112 and the outer wall of the first bearing seat 111 are connected through a first oil injection hole 1113, and the lubrication effect is achieved by injecting lubricating oil.

The first conical volute 1 includes a first conical casing 121 that is rotationally coupled with the first turbine conical casing 24 . A first sealing ring 6 is provided between the inner end surface of the first cone housing 121 and the outer end surface of the first turbine cone body 24 . The first sealing ring 6 is a polytetrafluoroethylene ring. In this embodiment, the outer end surface of the first turbine cone body 24 is perpendicular to the axis of the turbine power input shaft 21. The outer end surface of the first turbine cone body 24 is provided with two concentrically arranged first semicircles with different diameters. Annular groove 241. The inner end surface of the first conical kettle housing 121 is perpendicular to the axis of the turbine power input shaft 21 and is arranged directly opposite the outer end surface of the first turbine conical kettle body 24. The inner end surface of the first conical kettle housing 121 is provided with two concentric The second semi-circular annular grooves 122 are arranged with different diameters, and a polytetrafluoroethylene ring is arranged between each two corresponding first semi-circular annular grooves 241 and second semi-circular annular grooves 122, that is, a polytetrafluoroethylene ring. for two.

The first conical volute 1 includes a first volute 11 and a second volute 12 that are interlocked with each other. The flange plates at the outer edges of the two interlocking surfaces are connected by bolts 4 . The aerodynamic cone turbine chamber 13 is located between the inner walls of the first volute 11 and the second volute 12 . The first bearing seat 111 is provided on the volute cover of the first volute 11 , the first cone housing 121 is provided on the second volute 12 , and one end of the second volute 12 is provided with a pneumatic cone turbine through hole 17 . The first turbine cone body 24 includes a cone section and a straight section connected in sequence along the air flow direction. The cone section of the first turbine cone body 24 cooperates with the inner cone surface of the first cone housing 121. The straight section of the kettle body 24 passes through the turbine hole 17 of the pneumatic conical kettle.

The cross-sectional size of the first turbine cone body 24 gradually increases from the vortex suction blade 28 toward the turbine centrifugal impeller 22 .

The blade rotation directions of the vortex suction rotor 28, the conjoined impeller 26 and the turbine centrifugal impeller 22 are the same. The plurality of blades of the conjoined impeller 26 are arranged in a spiral shape along the axial direction.

Figure 1 shows a green-ring air conditioning high-pressure turbine mechanism, including a gas-powered cone turbine and a driven cone turbine. The structure of the gas-powered cone turbine is shown in Figure 13-23. The gas-powered conical kettle turbine includes a second conical volute 7 and a high-pressure pneumatic conical kettle turbine 8 that are rotatably connected to each other. The second cone-shaped volute 7 is provided with a cavity 74 for accommodating the cone-shaped turbine. The second conical volute 7 is provided with a pressure relief accelerating tube 71 that is tangentially connected to the cavity 74 for accommodating the cone-shaped turbine. The high-pressure pneumatic conical pot turbine 8 includes a turbine power output shaft 81. The turbine power output shaft 81 is sequentially provided with a turbine impact impeller 82, a second turbine conical pot body 85 and an air exhaust port 86 along the axial direction, and the middle portions of the three are sequentially arranged along the air flow direction. Connected. The second turbine cone body 85 is also provided with first anti-rotation ribs 87 . The inner cavity cross section of the second turbine cone body 85 gradually decreases from the turbine impact impeller 82 toward the exhaust port 86 . In this embodiment, there are four first anti-rotation ribs 87 and they are evenly distributed around the turbine power output shaft 81 . Each first anti-rotation rib 87 is vertically connected to the side wall of the turbine power output shaft 81 . The direction of the exhaust port 86 is arranged coaxially with the turbine power output shaft 81 . The turbine impeller 82 and the second turbine cone body 85 are both located in the cone-containing turbine cavity 74 . The turbine power output shaft 81 of the gas-powered conical kettle turbine and the turbine power input shaft 21 of the driven conical kettle turbine are connected through a shaft protrusion and a slot, and the shaft protrusion and the slot are connected by bolts.

A third turbine cover plate 83 and a fourth turbine cover plate 84 are respectively provided on both axial sides of the turbine impact impeller 82 . The fourth turbine cover plate 84 is located between the turbine impact impeller 82 and the second turbine cone body 85 . The second conical volute 7 is provided with a second bearing seat 73, and the second bearing seat 73 is provided with a second bearing cavity 732 connected with the cavity 74 for accommodating the conical volute turbine. The three turbine cover plates 83 are in contact with the second bearing 10 . The second bearing seat 73 is provided with a second shaft hole 731 that communicates with the second bearing cavity 732 . The turbine power output shaft 81 passes through the second bearing 10 and the second shaft hole 731 . A second lubrication chamber 733 is provided on the middle side wall of the second shaft hole 731 , and the second lubrication chamber 733 communicates with the outer wall of the second bearing seat 73 through a second oil filling hole 734 . By injecting lubricating oil into the second oil filling hole 734, the lubrication effect can be achieved. The second bearing seat 73 is in contact with the outer surface of the third turbine cover plate 83 .

The second conical volute 7 includes a second conical casing 77 that is rotationally coupled with the second turbine conical casing 85 . A second sealing ring 9 is provided between the inner end surface of the second cone housing 77 and the outer end surface of the second turbine cone body 85 . The sealing ring 9 is a polytetrafluoroethylene ring. In this embodiment, the inner end surface of the second conical kettle body 77 is provided with two third semi-circular grooves 76 arranged concentrically and with different diameters, and the outer end surface of the second turbine conical kettle body 85 is provided with concentrically arranged and Two fourth semi-circular grooves 88 with different diameters are provided with a second sealing ring 9 between each two corresponding third semi-circular grooves 76 and fourth semi-circular grooves 88, that is, polytetrafluoroethylene There are two second sealing rings 9 .

The second conical volute 7 has a depressurized gas outlet 72 at one end of the cavity 74 accommodating the conical kettle turbine. The exhaust port 86 of the high-pressure pneumatic conical turret 8 is located inside the depressurized gas outlet 72 . Four second anti-rotation fins 89 are connected to the inner side of the air exhaust port 86. Each second anti-rotation fin 89 is perpendicular to the inner wall of the air exhaust port 86. The plane of the second anti-rotation fin 89 is in contact with the turbine power output shaft 81. Parallel to each other. The pressure relief accelerating tube 71 includes a high-pressure gas nozzle 711 located at its output end. The cross-sectional area of the gas passage in the high-pressure gas nozzle 711 gradually decreases along the direction of the gas flow. The high-pressure gas nozzle 711 is located in the cavity 74 of the turbine containing the conical pot. The outer edge of the turbine impeller 82 is provided with a clearance gap that matches the high-pressure gas nozzle 711 . The second conical volute 7 is also provided with a nozzle hole 75 located on the inner wall of the cavity 74 for accommodating the cone-shaped turbine. The high-pressure gas nozzle 711 penetrates from the nozzle hole 75 into the cavity 74 for accommodating the cone-shaped turbine. The second conical volute 7 includes a third volute and a fourth volute that are interlocked with each other. The edges of the third volute and the fourth volute are connected by bolts 4 .

When the gas-powered conical kettle turbine is working, the high-pressure gas enters the pressure relief accelerating tube 71 through the electronic control valve and then passes through the high-pressure gas nozzle 711 at the speed of V1. It is compressed and accelerated to V2 and injected into the impact turbine impact impeller 82 to drive the high-pressure pneumatic cone kettle. Turbine 8 rotates. The motive gas forms a vortex in the inner cavity of the second turbine cone body 85, is decelerated by the first anti-rotation fin 87, and then decelerated again by the second anti-rotation fin 89 and is discharged from the exhaust port 86 of the high-pressure pneumatic cone turbine. . Since the diameter of the air outlet 86 is very small, the energy of the air flow spiral driven by it is very small, so there is no need to provide a back-spray structure at the rear end. Then most of the kinetic energy of the high-pressure gas is converted into the mechanical energy of the high-pressure pneumatic cone turbine 8 and is transmitted to the pneumatic cone turbine 2 of the driven cone turbine through the turbine power output shaft 81. The turbine power input shaft 21 of the driven cone turbine 2 follows. It rotates relative to the first conical volute 1.

When the driven conical kettle turbine is working, the low-speed gas is inhaled by the turbine suction blade 28 at the speed of V4, is pressurized and accelerated to V5 through the conjoined impeller 26, and then enters the conical kettle cavity 25 to form a vortex, and is then blown by the turbine centrifugal impeller. 22 is thrown into the vortex nozzle 16 to form a pressure airflow with a speed V6, which flows through the pressure vortex 15 and the one-way poppet valve 141 and is blown into the thermo-pressure box with a pressure airflow with a speed V7. The air in the whole process is pressurized in three stages through the turbine suction blade 28, the conjoined impeller 26, and the turbine centrifugal impeller 22. Therefore, the energy conversion rate of the driven cone kettle turbine can reach about 90%.

1. "Gas-powered cone kettle turbine with green ring air-conditioning high-pressure turbine mechanism" is based on the principle of energy conservation:

Q _out = Q _in - Q _row - Q _w

Q _out ——Net output mechanical energy

_Qin - input airflow energy

Q _exhaust - the residual energy of the exhaust air flow, which is related to the design of the exhaust port and can be controlled within 2%.

Q _w ——Micro-loss energy such as gas leakage, pressure airway wind resistance, bearing friction, etc. can be controlled within 5%.

It can be seen from the above formula that it is feasible for the energy conversion efficiency of the "gas-powered cone kettle turbine with green ring air conditioning high-pressure turbine mechanism" to reach about 90%.

Related calculation formulas:

(1) Gas pressure and velocity conversion formula:

V ² =200g(P1-P2)

Among them: V——jet speed (m/s)

g——gravitational acceleration 9.8 (N/Kg)

P1——Pressure (mpa)

P2——Pressure (mpa)

(2) The relationship between airflow area and speed at the same pressure:

S ₁ /S ₂ =V ₂ /V ₁

Among them: S ₁ ——Air flow section 1 (m ² )

S ₂ ——Air flow section 2 (m ² )

V ₁ ——Air flow velocity through section 1 (m/s)

V ₂ ——Air flow velocity through section 2 (m/s)

Take some of the calculation results of the "High Pressure Gas Power Conical Kettle Turbine Parameter Calculation Table" as an example, the details are as follows:

High pressure gas powered conical kettle turbine parameter calculation table

From the above calculation, it can be seen that the energy conversion rate of the "gas-powered cone kettle turbine with green ring air-conditioning high-pressure turbine mechanism" can reach about 90%.

2. The "driven cone kettle turbine of the green ring air conditioning high-pressure turbine mechanism" is based on the principle of energy conservation:

Q _out = Q _in - Q _valve - Q _w

Q _out ——Net output air energy

Q _input - input mechanical energy

Q _valve - the energy consumption coefficient of the poppet valve can be controlled within 2%.

Q _w ——Micro-loss energy such as gas leakage, pressure airway wind resistance, bearing friction, etc. can be controlled within 5%.

It can be seen from the above formula that it is feasible for the energy conversion efficiency of the "driven cone kettle turbine of the green ring air conditioning high-pressure turbine mechanism" to be about 90%.

Related calculation formulas:

(1) Gas pressure and velocity conversion formula:

V ² =200g (P1-P2) where: V——jet speed (m/s)

g——gravitational acceleration 9.8 (N/Kg)

P1——Pressure (mpa)

P2——Pressure (mpa)

(2) The relationship between airflow area and speed at the same pressure:

S ₁ /S ₂ =V ₂ /V ₁

Among them: S ₁ ——Air flow section 1 (m ² )

S ₂ ——Air flow section 2 (m ² )

V ₁ ——Air flow velocity through section 1 (m/s)

V ₂ ——Air flow velocity through section 2 (m/s)

Take some of the calculation results of the "Driven Cone Turbine Parameter Calculation Table" as an example, the details are as follows:

Driven cone kettle turbine parameter calculation table

It can be seen from the above calculation that the energy conversion rate of the "driven cone kettle turbine of the green ring air conditioning high-pressure turbine mechanism" can reach about 90%.

Through targeted design, the high-pressure turbine mechanism of Green Ring Air Conditioner is very suitable for the use of Green Ring Air Conditioner in terms of structure and technical performance. The high-pressure turbine mechanism of the green ring air conditioner completes energy conversion through gas entering the conical pot turbine body, eliminating the two major energy loss problems of gas leakage and impact between the turbine and the casing, and tail vortex in the existing general technology. Through three-stage energy absorption and conversion in the first conical pot turbine body, the size of the mechanism is reduced, making it more efficient and lower noise. The overall energy conversion rate of the high-pressure turbine mechanism of the green ring air conditioner can theoretically reach about 80%.

The present utility model has been described above in conjunction with the best embodiments. However, the present utility model is not limited to the above disclosed embodiments, but should cover various modifications and equivalent combinations based on the essence of the present utility model.

Claims (6)

1. A gas-powered conical kettle turbine of a green-ring air-conditioning high-pressure turbine mechanism, which is characterized in that it includes a second conical volute (7) and a high-pressure pneumatic conical kettle turbine (8) that are rotatably connected to each other; the second cone-shaped volute The second cone-shaped volute (7) is provided with a cavity (74) for accommodating the conical pot turbine. The second conical volute (7) is provided with a pressure relief accelerating tube (71) that is tangentially connected to the cavity (74) for accommodating the conical pot turbine. ); the high-pressure pneumatic cone turbine (8) includes a turbine power output shaft (81), and the turbine power output shaft (81) is sequentially provided with a turbine impact impeller (82) and a second turbine cone body (85) along the axial direction. ) and the air exhaust port (86), and the middle parts of the three are connected in sequence along the air flow direction; the second turbine cone body (85) is also provided with a first anti-rotation rib (87); the air exhaust port (86) faces the turbine The power output shaft (81) is coaxially arranged; the turbine impact impeller (82) and the second turbine cone body (85) are both located in the cone-containing turbine cavity (74). 2. A gas-powered cone kettle turbine of a green-ring air-conditioning high-pressure turbine mechanism according to claim 1, characterized in that third turbine cover plates (83) are respectively provided on both sides of the turbine impact impeller (82). and a fourth turbine cover plate (84). The fourth turbine cover plate (84) is located between the turbine impeller (82) and the second turbine cone body (85). 3. A gas-powered cone kettle turbine of a green-ring air-conditioning high-pressure turbine mechanism according to claim 1, characterized in that the pressure relief accelerating tube (71) includes a high-pressure gas nozzle (711) located at its output end. The cross-sectional area of the gas channel in the gas nozzle (711) gradually decreases along the direction of the gas flow. The high-pressure gas nozzle (711) is located in the cavity (74) of the turbine containing the cone pot; the outer edge of the turbine impact impeller (82) is provided with a The high-pressure gas nozzle (711) is adapted to the gap. 4. A gas-powered conical kettle turbine of a green-ring air-conditioning high-pressure turbine mechanism according to claim 1, characterized in that one end of the second conical volute (7) accommodates the conical kettle turbine cavity (74) There is a decompression gas outlet (72), and the exhaust outlet (86) of the high-pressure pneumatic cone turbine (8) is located inside the depressurization gas outlet (72); the exhaust outlet (86) is connected to a second depressurizer on the inside. Spiral fins (89). 5. A gas-powered conical kettle turbine of a green-ring air-conditioning high-pressure turbine mechanism according to claim 2, characterized in that the second conical volute (7) is provided with a second bearing seat (73), The second bearing seat (73) is provided with a second bearing cavity (732) connected to the cavity (74) containing the conical pot turbine. The second bearing cavity (732) is provided with a third turbine cover plate (83). The second bearing (10) in contact; the second bearing seat (73) is provided with a second shaft hole (731) connected with the second bearing cavity (732), and the turbine power output shaft (81) passes through the second bearing cavity (732). Bearing (10) and second shaft hole (731); a second lubrication chamber (733) is provided on the middle side wall of the second shaft hole (731), and the second lubrication chamber (733) is connected with the outer wall of the second bearing seat (73) They are connected through the second oil filling hole (734). 6. A gas-powered cone turbine of a green-ring air-conditioning high-pressure turbine mechanism according to claim 5, characterized in that the second cone-type volute (7) includes a second turbine cone-shaped casing (85). The second cone kettle housing (77) is rotated and fitted; a second sealing ring (9) is provided between the inner end surface of the second cone kettle housing (77) and the outer end surface of the second turbine cone kettle body (85); The sealing ring (9) is a polytetrafluoroethylene ring.