Impact drainage cone-pot turbine booster pump

Abstract

The impact drainage cone-pot turbine pressure pump comprises a conical volute, a pneumatic cone-pot turbine in running fit with the conical volute is arranged in the middle of the conical volute, the pneumatic cone-pot turbine comprises a turbine shaft and a turbine cone-pot body which are connected with each other, and one end of the turbine cone-pot body is connected with a centrifugal impeller; an air compression vortex channel is arranged in the conical volute and surrounds the outer side of the centrifugal impeller; the conical volute is further provided with an impact airflow nozzle, and an air outlet of the impact airflow nozzle is located in the inner wall of the compressed air vortex channel and faces the same direction as an exhaust port of the compressed air vortex channel. According to the impact drainage cone-pot turbine booster pump, large-flow pumping under the condition of large pressure difference can be achieved with small energy consumption.

Description

Technical Field

[0001] The invention relates to the field of booster pumps, in particular to an impact drainage cone pot turbine booster pump. Background Art

[0002] When high-pressure gas is transferred from a warehouse to a shipyard or from a shipyard to a warehouse, after the pressures on both sides are equal, the remaining inventory needs to be pumped quickly at high pressure. However, when the existing gas pump is in use, as the pressure difference increases, when the pressure difference exceeds 10 MPa, its energy efficiency is less than 20%, and the pumping flow rate also drops significantly, resulting in problems such as long high-pressure gas transfer time and high energy consumption.

[0003] The above problems need to be solved by inventing a pumping equipment with large flow and low energy consumption under high pressure difference conditions. Summary of the invention

[0004] The purpose of the present invention is to provide an impact drainage cone pot turbine pressure pump which can solve the above technical problems.

[0005] To achieve the above-mentioned purpose, the present invention provides an impact drainage cone turbine booster pump, including a conical volute, a pneumatic cone turbine that rotates with the conical volute is provided in the middle of the conical volute, the pneumatic cone turbine includes a turbine shaft and a turbine cone body that are connected, and a centrifugal impeller is connected to one end of the turbine cone body; a compression vortex is provided in the conical volute, and the compression vortex surrounds the outer side of the centrifugal impeller; an impact air flow nozzle is also provided on the conical volute, and the outlet of the impact air flow nozzle is located on the inner wall of the compression vortex and is in the same direction as the exhaust port of the compression vortex.

[0006] Furthermore, the inner diameter of the impinging airflow nozzle gradually decreases along the airflow direction.

[0007] Furthermore, the turbine shaft is connected to a plurality of turbine suction cyclone blades located outside the conical volute casing around its axis, and an air intake is formed between adjacent turbine suction cyclone blades. The air intake is connected to one end of the conical pot cavity of the turbine cone pot body, and the turbine suction cyclone blades and the centrifugal impeller are respectively located at both ends of the turbine cone pot body.

[0008] Furthermore, the turbine shaft is connected with a turbine upper cover plate, a turbine lower cover plate and a connected impeller, the turbine upper cover plate, the centrifugal impeller, the connected impeller, the turbine suction cyclone blades and the turbine lower cover plate are arranged in sequence, and the connected impeller is located in the cone pot cavity.

[0009] Furthermore, the conical volute includes a cone shell, in which an aerodynamic cone turbine chamber for rotating with the turbine cone body is provided; the outer side of the aerodynamic cone turbine chamber is connected to the compression vortex through a vortex nozzle.

[0010] Furthermore, a first annular groove is provided on the outer wall of the turbine cone pot body, and a second annular groove is provided on the inner wall of the cone pot shell body. The first annular groove and the second annular groove are arranged opposite to each other and a sealing ring is provided therebetween.

[0011] Furthermore, a bearing seat is provided on the conical volute, the turbine shaft passes through the bearing seat and the two are rotatably fitted via a bearing.

[0012] Furthermore, the exhaust port of the compressed air vortex is connected to a gas storage tank via a one-way cone valve.

[0013] Beneficial Effects

[0014] Compared with the prior art, the impact drainage cone pot turbine pressure pump of the present invention has the following advantages:

[0015] 1. An impact airflow nozzle is arranged on the conical volute, and the air outlet of the impact airflow nozzle is located on the inner wall of the compressor vortex and faces the same direction as the exhaust port of the compressor vortex. The impact airflow nozzle ejects ultra-high pressure impact airflow into the compressor vortex, and a low-pressure vortex zone is formed by the ultra-high pressure impact airflow. The airflow pressurized by the turbine can flow into the gas storage tank very smoothly, thereby realizing high flow pumping under large pressure difference with low energy consumption.

[0016] 2. The low-pressure vortex zone formed by the ultra-high-pressure impact airflow ejected from the impact airflow nozzle can also eliminate the gas leakage between the pneumatic cone pot turbine and the conical volute casing, thereby reducing energy loss.

[0017] 3. By setting a sealing ring between the pneumatic cone turbine and the conical volute, the problem of gas leakage can be further reduced.

[0018] The present invention will become more apparent from the following description taken in conjunction with the accompanying drawings, which are used to illustrate embodiments of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. 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 paying creative work.

[0020] Figure 1 It is a top view cross-sectional view of the impact drainage cone pot turbine booster pump;

[0021] Figure 2 It is a front and sectional view of the turbine booster pump of the impact drainage cone pot;

[0022] Figure 3This is the working principle diagram of the turbine pressure pump of the impact drainage cone pot;

[0023] Figure 4 It is the front sectional view of the conical volute;

[0024] Figure 5 It is a top sectional view of a conical volute;

[0025] Figure 6 It is a top view of the pneumatic cone turbine;

[0026] Figure 7 This is the front view of the pneumatic cone turbine;

[0027] Figure 8 It is a front sectional view of the pneumatic cone turbine;

[0028] Fig. 9 for Figure 7 AA view;

[0029] Fig.10 for Figure 7 BB direction view. DETAILED DESCRIPTION

[0030] Embodiments of the present invention will now be described with reference to the accompanying drawings.

[0031] Example

[0032] The specific embodiments of the present invention are as follows Figures 1 to 10 As shown, an impact drainage cone pot turbine booster pump includes a conical volute 1, a pneumatic cone pot turbine 3 that rotates with the conical volute 1 is provided in the middle of the conical volute 1, and the pneumatic cone pot turbine 3 includes a turbine shaft 31 and a turbine cone pot body 34 that are connected to each other, and a centrifugal impeller 33 is connected to one end of the turbine cone pot body 34. A bolt hole 312 and a connecting slot 311 are provided at one end of the turbine shaft 31 for connecting to an external power device. A compressed air vortex 15 is provided in the conical volute 1, and the compressed air vortex 15 surrounds the outer side of the centrifugal impeller 33. An impact airflow nozzle 2 is also provided on the conical volute 1, and the air outlet of the impact airflow nozzle 2 is located on the inner wall of the compressed air vortex 15 and is in the same direction as the exhaust port of the compressed air vortex 15, and the two are located on the same straight line.

[0033] The inner diameter of the impact airflow nozzle 2 gradually decreases along the airflow direction. The air inlet end of the impact airflow nozzle 2 is connected to an external air supply device. When the high-pressure gas passes through the impact airflow nozzle 2, the pressure is further increased and injected into the compressed air vortex 15 to form an ultra-high-pressure impact airflow, and a low-pressure vortex area is formed by the ultra-high-pressure impact airflow.

[0034] Eight turbine suction cyclone blades 36 located outside the conical volute 1 are connected to the turbine shaft 31 around its axis, and an air intake port 37 is formed between adjacent turbine suction cyclone blades 36. The air intake port 37 is connected to one end of the conical pot cavity 341 of the turbine cone pot body 34. The turbine suction cyclone blades 36 and the centrifugal impeller 33 are respectively located at both ends of the turbine cone pot body 34.

[0035] The turbine shaft 31 is connected with a turbine upper cover plate 32, a turbine lower cover plate 35 and a conjoined impeller 38. The turbine upper cover plate 32, the centrifugal impeller 33, the conjoined impeller 38, the turbine suction cyclone blade 36 and the turbine lower cover plate 35 are arranged in sequence, and the conjoined impeller 38 is located in the cone pot cavity 341. The inner edge rotation radius of the blade of the centrifugal impeller 33 is greater than the outer edge rotation radius of the blade of the conjoined impeller 38 and the turbine suction cyclone blade 36. The height of the centrifugal impeller 33 is less than the height of the conjoined impeller 38 and the turbine suction cyclone blade 36.

[0036] The conical volute 1 includes a conical pot shell 121, and a pneumatic conical pot turbine chamber 13 is provided in the conical pot shell 121 for rotationally cooperating with the turbine conical pot body 34. The outer side of the pneumatic conical pot turbine chamber 13 is connected to the compressed air vortex 15 through the vortex nozzle 14. The width of the vortex nozzle 14 is smaller than the height of the centrifugal impeller 33, and is also smaller than the cross-sectional diameter of the compressed air vortex 15, so that the airflow can be pressurized when passing through the vortex nozzle 14.

[0037] The outer wall of the turbine cone body 34 is provided with a first annular groove 342, and the inner wall of the cone shell 121 is provided with a second annular groove 123. The first annular groove 342 and the second annular groove 123 are arranged opposite to each other with a sealing ring 4 disposed therebetween. In this embodiment, the sealing ring 4 is made of polytetrafluoroethylene.

[0038] The conical volute 1 is provided with a bearing seat 16, and the turbine shaft 31 passes through the bearing seat 16 and the two are rotatably matched through the bearing 5. The bearing seat 16 is provided with a lubrication cavity 161 and a bearing cavity 162 arranged in sequence along its axial direction. The lubrication cavity 161 is located above the bearing cavity 162. The bearing cavity 162 is used to install the above-mentioned bearing 5, and the lubrication cavity 161 is used to store lubricating oil. The turbine shaft 31 passes through the bearing cavity 162 and the lubrication cavity 161 in sequence. When the turbine shaft 31 rotates, the lubrication oil in the lubrication cavity 161 can flow along the turbine shaft 31 to the bearing 5, thereby lubricating the bearing 5.

[0039] In this embodiment, the conical volute 1 includes an upper volute 11 and a lower volute 12, which are interlocked and fixed by bolts. The inner cavities of the upper volute 11 and the lower volute 12 together constitute the pneumatic cone pot turbine chamber 13 and the compressed air vortex 15, and the cone pot housing 121 is arranged on the lower volute 12. The bearing seat 16 is arranged on the top of the upper volute 11.

[0040] The exhaust port of the compressed air vortex 15 is connected to the gas storage tank 7 via a one-way valve 6, wherein the one-way valve 6 can prevent gas backflow. The one-way valve 6 can be a one-way cone valve. Specifically, an annular air outlet connecting plate 17 is provided at the position of the exhaust port of the compressed air vortex 15 on the conical volute 1, and the air outlet connecting plate 17 of the conical volute 1 is connected to the outer shell of the gas storage tank 7 by bolts.

[0041] When the impact drainage cone pot turbine booster pump is working, the external power equipment (such as a motor) drives the pneumatic cone pot turbine 3 to rotate relative to the conical volute 1, and the external air is sucked into the cone pot cavity 341 of the turbine cone pot body 34 through the air intake port 37, wherein the speed of the sucked gas relative to the pneumatic cone pot turbine 3 at the air intake port 37 is V4 and the pressure is P1. The gas in the cone pot cavity 341 passes upward through the integrated impeller 38, and the speed is increased to V3, and the pressure is P2. The gas in the cone pot cavity 341 is accelerated by the centrifugal impeller 33 and enters the compressed air vortex 15 outward, and the speed of the high-pressure gas it drains is V1, and the pressure is P3. The pressure of the high-pressure gas it drains at the impact airflow nozzle 2 is P0. The impact airflow nozzle 2 ejects an ultra-high-pressure impact airflow into the compressed air vortex 15, and the airflow passes through the one-way cone valve 6 and forms a low-pressure vortex zone in the gas storage tank 7, with a pressure of P5. The low-pressure vortex zone pressurizes the airflow at the exhaust port of the compressed air vortex 15 to a speed of V2 and a pressure of P3, and the airflow enters the gas storage tank 7. The maximum pressure in the gas storage tank 7 is P4.

[0042] The gas storage tank 7 with a pressure of P4 forms a low-pressure vortex zone with a pressure of P5 under the impact of the high-pressure airflow of P0. The P3 airflow pressurized by the three-stage blades of the pneumatic cone turbine 3 can smoothly flow into the gas storage tank 7 with a pressure of P4 through the low-pressure vortex zone of P5.

[0043] The air pressure relationship is as follows:

[0044] P0>P4>P3>P5, P2, P1;

[0045] P0>2P4.

[0046] The speed relationship is as follows:

[0047] V1>V2>V3, V4;

[0048] V1>4V2.

[0049] The one-way cone valve can automatically adjust the outlet cross-sectional area according to the pressure. It can not only automatically control the flow rate and flow velocity, but also prevent gas backflow.

[0050] The present invention has been described above in conjunction with the best embodiments, but the present invention is not limited to the embodiments disclosed above, but should cover various modifications and equivalent combinations based on the essence of the present invention.

Claims

1. An impact drainage cone pot turbine booster pump, comprising a cone volute (1), a pneumatic cone pot turbine (3) rotatably matched with the cone volute (1) being provided in the middle thereof, characterized in that: The pneumatic cone turbine (3) comprises a turbine shaft (31) and a turbine cone body (34) connected to each other, one end of the turbine cone body (34) being connected to a centrifugal impeller (33); a compressed air vortex (15) is arranged in the conical volute (1), and the compressed air vortex (15) surrounds the outer side of the centrifugal impeller (33); an impact air nozzle (2) is also arranged on the conical volute (1), and an air outlet of the impact air nozzle (2) is located on the inner wall of the compressed air vortex (15) and faces the same direction as the exhaust port of the compressed air vortex (15).

2. The impact drainage cone pot turbine pressure pump according to claim 1, characterized in that: The inner diameter of the impinging airflow nozzle (2) gradually decreases along the airflow direction.

3. The impact drainage cone pot turbine pressure pump according to claim 1, characterized in that: The turbine shaft (31) is connected to a plurality of turbine suction cyclone blades (36) located outside the conical volute (1) around its axis, and an air intake port (37) is formed between adjacent turbine suction cyclone blades (36). The air intake port (37) is connected to one end of a conical pot cavity (341) of a turbine conical pot body (34), and the turbine suction cyclone blades (36) and the centrifugal impeller (33) are respectively located at two ends of the turbine conical pot body (34).

4. The impact drainage cone pot turbine booster pump according to claim 3, characterized in that: The turbine shaft (31) is connected to a turbine upper cover plate (32), a turbine lower cover plate (35) and a conjoined impeller (38); the turbine upper cover plate (32), the centrifugal impeller (33), the conjoined impeller (38), the turbine suction cyclone blades (36) and the turbine lower cover plate (35) are arranged in sequence; the conjoined impeller (38) is located in the cone pot cavity (341).

5. The impact drainage cone pot turbine pressure pump according to claim 1, characterized in that: The conical volute (1) comprises a conical volute shell (121), wherein a pneumatic conical volute turbine chamber (13) for rotationally cooperating with a turbine conical volute body (34) is provided in the conical volute shell (121); the outer side of the pneumatic conical volute turbine chamber (13) is connected to a compressed air vortex (15) via a vortex nozzle (14).

6. The impact drainage cone pot turbine pressure pump according to claim 5, characterized in that: A first annular groove (342) is provided on the outer wall of the turbine cone pot body (34), and a second annular groove (123) is provided on the inner wall of the cone pot shell (121); the first annular groove (342) and the second annular groove (123) are arranged opposite to each other and a sealing ring (4) is provided therebetween.

7. The impact drainage cone pot turbine pressure pump according to claim 1, characterized in that: A bearing seat (16) is provided on the conical volute (1), and the turbine shaft (31) passes through the bearing seat (16) and the two are rotatably engaged via a bearing (5).

8. The impact drainage cone pot turbine booster pump according to claim 1, characterized in that: The exhaust port of the compressed air vortex (15) is connected to a gas storage tank (7) via a one-way valve (6).

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