CN218824354U

CN218824354U - Bulb tubular turbine flow velocity measuring device

Info

Publication number: CN218824354U
Application number: CN202222965819.4U
Authority: CN
Inventors: 陆承友; 兰有磷; 朱鼎林; 张昌隆; 杨冬韦; 黄文粮; 陈枫
Original assignee: Fujian Huadian High Sand Water Power Co ltd
Current assignee: Fujian Huadian High Sand Water Power Co ltd
Priority date: 2022-11-07
Filing date: 2022-11-07
Publication date: 2023-04-07
Anticipated expiration: 2032-11-07

Abstract

The utility model discloses a bulb tubular turbine flow velocity measuring device, including the base, the inside of base has seted up the flowing water chamber, the internally mounted of flowing water chamber has the electricity generation room, the one end fixed mounting of electricity generation room has the propeller structure of testing the speed, the top fixedly connected with two upper prop of electricity generation room, the bottom fixedly connected with lower prop of electricity generation room, one side fixedly connected with floating structure of testing the speed of lower prop and one of them upper prop, the runner structure is installed to electricity generation room one end, the outside cover of runner structure is equipped with the runner room, the inner wall of runner room is installed the stator structure, the one end fixedly connected with draft tube of runner room; the utility model discloses set up the speed sensor of three different groups along the rivers direction, measured the speed to different positions respectively, reach behind the multiunit data with the contrast of prediction data, synthesize and reach the conclusion to adjust the direction of stator structure and the rotational speed of runner structure according to the conclusion, when making the hydraulic turbine carry out energy conversion, efficiency is the highest.

Description

Bulb tubular turbine flow velocity measuring device

Technical Field

The utility model belongs to the technical field of the through-flow turbine, in particular to bulb through-flow turbine velocity of flow measuring device.

Background

The water turbine part of the bulb through-flow turbine set consists of a runner chamber, a guide vane mechanism, a runner and a tail water pipe; the generator shaft is directly connected to the rotating wheel and is installed on the steel bulb shell together, the generator is arranged in the bulb shell, the rotating wheel is arranged at the tail end of the bulb, the generator bearing is fixed on the bulb shell through the bearing support ring, the rotating wheel end bearing is fixed on the bulb tail end shell, the front end of the generator shaft is connected to the oil circuit device for controlling the variable pitch of the motor sliding ring and the rotating wheel, the steel bulb is fixed in the concrete foundation through the upper support and the lower support, and the upper support is also a passage for people to enter and exit the bulb.

In order to maximize the efficiency of the hydraulic turbine during energy conversion, i.e. to ensure that the total water consumption is minimized under a certain output, or the output of the hydraulic turbine is maximized under a certain output, a flow velocity measuring device is required to measure the flow velocity and flow rate of water around the hydraulic turbine.

Therefore, it is necessary to provide a bulb turbine flow velocity measuring device to solve the above problems.

SUMMERY OF THE UTILITY MODEL

To the above problem, the utility model provides a bulb through-flow turbine velocity of flow measuring device to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a bulb through-flow turbine velocity of flow measuring device, includes the base, the flowing water chamber has been seted up to the inside of base, the internally mounted in flowing water chamber has the electricity generation room, the one end fixed mounting of electricity generation room has the oar soon and tests the speed the structure, two upper prop of top fixedly connected with of electricity generation room, the top and the ground intercommunication of the top interlude base of upper prop, the pillar under the bottom fixedly connected with of electricity generation room, the pillar floats the structure of testing the speed with one side fixedly connected with of one of them upper prop, the runner structure is installed to electricity generation room one end, the outside cover of runner structure is equipped with the runner room, the stator structure is installed to the inner wall of runner room, the one end fixedly connected with draft tube of runner room.

Further, the structure that tests the speed of oar soon includes the frame that tests the speed, the shape that tests the speed the frame is circular, the diameter that tests the speed the frame is less than the diameter of electricity generation chamber, just test speed frame and electricity generation chamber phase-match, a plurality of oar soon tachymeters are installed to one side equidistant of frame that tests the speed.

Further, the structure that tests the speed floats includes the cage that tests the speed, the inside equidistant a plurality of traction rope cover of installing of cage that tests the speed, the one end fixedly connected with of traction rope cover tachymeter that floats.

Further, the shape of unsteady tachymeter is circular, the internally mounted of unsteady tachymeter has the turbine structure, the surface mounting of unsteady tachymeter has a plurality of auxiliary fins.

Furthermore, a maintenance cavity is formed in the top end of the running water cavity and located between the two upper supporting columns, partition doors are mounted at the top end and the bottom end of the maintenance cavity, and a crawling ladder is mounted between the partition doors.

Furthermore, be equipped with the throttle portion on the flowing water chamber, the shape of throttle portion and runner room and the shape phase-match of draft tube, the shape of runner room is the tubaeform of big-end-up, the tubaeform of draft tube is big-end-up, the stator structure is located one side of runner structure.

Further, a venturi flowmeter is installed on one side of the bottom end of the inner wall of the throttling part, and the venturi flowmeter is located at the other end of the runner chamber.

The utility model discloses a technological effect and advantage:

the utility model discloses speed sensor of three different groups has been set up along rivers direction, including oar soon test the speed structure, unsteady test the speed structure and venturi flowmeter, measure the velocity of flow when rivers do not have the hindrance in the flowing water cavity respectively, by the velocity of flow behind the electricity generation room water conservancy diversion and the velocity of flow when assaulting the stator structure to utilize and reach multiunit data and forecast data contrast, synthesize and reach the structure, thereby adjust the direction of stator structure and the rotational speed of runner structure according to the conclusion, when making the hydraulic turbine carry out energy conversion, efficiency is the highest.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic view of the internal structure of the base of the present invention;

FIG. 2 is a schematic view of the position of the runner structure of the present invention;

fig. 3 is a schematic diagram of the floating speed measurement structure of the present invention;

fig. 4 is the structural schematic diagram of the floating velocimeter of the present invention.

In the figure: 1. a base; 2. a running water cavity; 201. a throttle section; 3. a power generation chamber; 4. a propeller speed measuring structure; 401. a speed measuring frame; 402. a propeller velocimeter; 5. an upper pillar; 6. a lower pillar; 7. a floating speed measuring structure; 701. a velocity measurement cage; 702. a traction rope sleeve; 703. a floating velocimeter; 704. an auxiliary fin; 8. a rotating wheel structure; 9. a runner chamber; 10. a guide vane structure; 11. a draft tube; 12. maintaining the cavity; 13. a partition door; 14. a venturi flow meter.

Detailed Description

To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the attached drawings in the embodiments of the present invention are combined to clearly and completely illustrate the technical solution in the embodiments of the present invention, and obviously, the described embodiments are part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Referring to the specification attached drawings 1-4, the utility model provides a bulb through-flow turbine flow velocity measuring device, including base 1, flowing water chamber 2 has been seted up to base 1's inside, the internally mounted of flowing water chamber 2 has power generation room 3, the one end fixed mounting of power generation room 3 has propeller structure 4 that tests the speed, two upper prop 5 of top fixedly connected with of power generation room 3, the top and the ground intercommunication of base 1 are alternated on upper prop 5's top, pillar 6 under power generation room 3's the bottom fixedly connected with, pillar 6 and one of them upper prop 5's one side fixedly connected with float structure 7 that tests the speed, runner structure 8 is installed to power generation room 3 one end, runner structure 8's the outside cover is equipped with runner room 9, stator structure 10 is installed to the inner wall of runner room 9, the one end fixedly connected with draft tube 11 of runner room 9.

The utility model discloses set up the speed sensor of three different groups along rivers direction, including oar soon structure 4 that tests the speed, unsteady structure 7 that tests the speed and venturi flowmeter 14, measure the velocity of flow when rivers do not have the hindrance in flowing water cavity 2 respectively, by the velocity of flow after the 3 water conservancy diversion of electricity generation room and the velocity of flow when assaulting stator structure 10, and utilize and reach multiunit data and forecast data contrast, synthesize the conclusion, thereby adjust stator structure 10's direction and runner structure 8's rotational speed according to the conclusion, when making the hydraulic turbine carry out energy conversion, efficiency is the highest.

As shown in fig. 1-2, as a specific embodiment of the utility model, the propeller structure 4 that tests the speed includes the frame 401 that tests the speed, and the shape that tests the speed of frame 401 is circular, and the diameter that tests the speed of frame 401 is less than the diameter of electricity generation room 3, and tests the speed of frame 401 and the phase-match of electricity generation room 3, and a plurality of propeller tachymeters 402 are installed to one side equidistant of frame 401 that tests the speed.

The utility model discloses to revolve oar structure 4 that tests speed sets up and close on one side of flowing water cavity 2 water inlets at electricity generation room 3, utilize a plurality of oar tachymeters 402 that revolve under the condition that rivers do not receive the blocking, measure the velocity of flow and flow of rivers, because the shape of frame 401 that tests the speed is circular, the diameter of frame 401 that tests the speed is less than the diameter of electricity generation room 3, and test the speed frame 401 and the 3 phase-matchs of electricity generation room, consequently, the follow-up meeting of rivers that is blockked by oar structure 4 that tests the speed by revolving oar when testing the speed bumps one side of electricity generation room 3, by electricity generation room 3's bulb head rectification, it has almost no influence to follow-up rivers flow path.

As shown in fig. 3-4, as a specific implementation of the utility model discloses a speed measuring structure 7 floats includes speed measuring cage 701, a plurality of traction rope cover 702 are installed to speed measuring cage 701's inside equidistant, the unsteady tachymeter 703 of one end fixedly connected with of traction rope cover 702, the shape of unsteady tachymeter 703 is circular, inside packing has the helium, the internally mounted of unsteady tachymeter 703 has the turbine structure, the surface mounting of unsteady tachymeter 703 has a plurality of auxiliary fins 704, auxiliary fins 704 one end is the stereoplasm structure other end and is soft structure, the one end of stereoplasm structure is connected with the fag end of traction rope cover 702.

The utility model discloses set up a plurality of tachymeter 703 that float inside the tacho cage 701, the tacho cage 701 is at first just natural simple and easy filter screen, can block to carry bulk object (including propeller tacho structure 4 and unsteady tachymeter 703) impact stator structure 10 and runner structure 8 in the rivers that lead to because of the accident, when using, rivers can make the inside unsteady tachymeter 703 that is full of the helium float in aqueous, rivers can impact unsteady tachymeter 703 this moment, because the shape of unsteady tachymeter 703 is circular, surface mounting has a plurality of auxiliary fins 704, and the one end of auxiliary fins 704 stereoplasm is connected with the fag end of traction rope cover 702, consequently, unsteady tachymeter 703 is when keeping self gesture, can be along with the direction of undercurrent in the rivers change position by oneself, measure after the data, can compare this group's data with propeller tacho structure 4 and prediction data, synthesize and draw the conclusion.

As shown in fig. 1-2, as a specific embodiment of the present invention, the maintenance chamber 12 has been seted up on the top of the flowing water chamber 2, the maintenance chamber 12 is located between two upper struts 5, the division door 13 is all installed on the top and the bottom of the maintenance chamber 12, the cat ladder is installed between two division doors 13, when necessary, the staff can open the division door 13 and enter the flowing water chamber 2 through the maintenance chamber 12, and the related structure is overhauled.

As shown in fig. 1-2, as a specific embodiment of the present invention, a throttling portion 201 is disposed on the flow cavity 2, the shape of the throttling portion 201 matches with the shape of the runner chamber 9 and the draft tube 11, the shape of the runner chamber 9 is a trumpet shape with a large front and a small back, the shape of the draft tube 11 is a trumpet shape with a small front and a large back, the guide vane structure 10 is located on one side of the runner structure 8, the venturi flow meter 14 is mounted on one side of the bottom end of the inner wall of the throttling portion 201, and the venturi flow meter 14 is located on the other end of the runner chamber 9.

The utility model discloses set up venturi flowmeter 14 at throttle portion 201 inner wall, when rivers flow through throttle portion 201, because throttle portion 201 one end shrinks gradually, lead to rivers increase at throttle portion 201 internal flow rate, the static pressure difference descends, just produced the static pressure difference around venturi flowmeter 14, rivers flow is big more, the static pressure difference is just big more, measure the flow according to pressure difference, and then calculate the velocity of flow, and predict the pressure that stator structure 10 and runner structure 8 received, after drawing data, synthesize the contrast again, draw the conclusion.

Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A bulb through-flow turbine flow velocity measuring device comprises a base (1), and is characterized in that: flow cavity (2) have been seted up to the inside of base (1), the internally mounted of flow cavity (2) has power generation room (3), the one end fixed mounting of power generation room (3) has propeller structure (4) of testing the speed, two upper prop (5) of top fixedly connected with of power generation room (3), the top and the ground intercommunication of base (1) are alternated on the top of upper prop (5), pillar (6) under the bottom fixedly connected with of power generation room (3), pillar (6) and one of them upper prop (5) one side fixedly connected with float structure (7) of testing the speed, runner structure (8) are installed to power generation room (3) one end, the outside cover of runner structure (8) is equipped with runner room (9), stator structure (10) are installed to the inner wall of runner room (9), the one end fixedly connected with draft tube (11) of runner room (9).

2. The apparatus of claim 1, wherein the flow velocity measuring device comprises: the utility model provides a propeller rotation structure of testing speed (4) is including testing speed frame (401), the shape of testing speed frame (401) is circular, the diameter of testing speed frame (401) is less than the diameter of electricity generation room (3), just it matches with electricity generation room (3) to test speed frame (401), a plurality of propeller rotation tachymeters (402) are installed to one side equidistant of testing speed frame (401).

3. The apparatus of claim 1, wherein the flow velocity measuring device comprises: the floating speed measurement structure (7) comprises a speed measurement cage (701), a plurality of traction rope sleeves (702) are installed in the speed measurement cage (701) at equal intervals, and one end of each traction rope sleeve (702) is fixedly connected with a floating speed measurement instrument (703).

4. The apparatus of claim 3, wherein the flow velocity measuring device comprises: the floating velocimeter (703) is circular, a turbine structure is installed inside the floating velocimeter (703), and a plurality of auxiliary fins (704) are installed on the surface of the floating velocimeter (703).

5. The apparatus of claim 1, wherein the flow velocity measuring device comprises: maintenance chamber (12) have been seted up on the top of flowing water chamber (2), maintenance chamber (12) are located between two upper prop (5), division door (13), two are all installed to the top and the bottom in maintenance chamber (12) install the cat ladder between division door (13).

6. The apparatus of claim 1, wherein the flow velocity measuring device comprises: be equipped with throttle portion (201) on flowing water chamber (2), the shape of throttle portion (201) and the shape phase-match of runner room (9) and draft tube (11), the shape of runner room (9) is the tubaeform of big-end-up, the tubaeform of draft tube (11) is big-end-up, stator structure (10) are located one side of runner structure (8).

7. The apparatus of claim 6, wherein the flow velocity measuring device comprises: venturi flowmeter (14) are installed to one side of throttle portion (201) inner wall bottom, venturi flowmeter (14) are located the other end of runner room (9).