CN104775970A

CN104775970A - Hydraulic turbine generator

Info

Publication number: CN104775970A
Application number: CN201510109582.1A
Authority: CN
Inventors: 卢润侨
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-03-13
Filing date: 2015-03-13
Publication date: 2015-07-15

Abstract

The invention discloses a hydraulic turbine generator. The hydraulic turbine generator comprises a hydraulic turbine room and a power generation room; the hydraulic turbine room is provided with a water inlet and a water outlet that have equal calibers and overlapped axes, and are opposite in the directions; a rotating wheel is arranged in the hydraulic turbine room; the rotating wheel is composed of a wheel disc and a water bucket or blades; the hydraulic turbine generator further comprises a reducing pipe connected with the water inlet and an increasing pipe connected with the water outlet; between the inner wall of the hydraulic turbine room and a rotatable sweeping space of the rotating wheel, a design of uniform small clearances is adopted; the power generation room is arranged at the outer side of the hydraulic turbine room; preferably, a contraction angle of the reducing pipe is 15-30 degrees; preferably, the axial length of the reducing pipe is greater than the inside diameter of the large opening; the clearance between the inner wall of the hydraulic turbine room and the rotatable sweeping space of the rotating wheel is less than or equal to 1mm, and less than or equal to 0.5mm preferably. Compared with the prior art, the hydraulic turbine generator disclosed by the invention has the beneficial effects of greatly increasing the velocity of water flow which impacts the blades of the rotating wheel, raising a specific rotary speed and loading ability of the rotating wheel, and further improving power generation efficiency; and meanwhile, the hydraulic turbine generator further has the beneficial effects of keeping the velocity of tail water, and being convenient in mounting and the like.

Description

A kind of hydraulic turbine generator

Technical field

The present invention relates to energy saving device, be specifically related to a kind of hydraulic turbine generator utilizing tap water to generate electricity.

Background technique

Hydraulic turbine generator is divided into impact type and impact two kinds substantially, impact type is seldom used due to reasons such as tail water flow velocity lose to the greatest extent in the existing technological scheme utilizing tap water to generate electricity, although impact is used, but, because domestic water flow is little, the endurance is short, is not suitable for reaction water turbine generator, so these schemes are not actually applied.Running water pipe electricity generator disclosed in China Patent Publication No. CN 101825051 A and the radio receiver utilizing running water pipe electricity generator to generate electricity, provide and a kind ofly can access hydraulic turbine generator scheme in water supply pipe, that be different from classical shock formula, the program using coil as stator, be arranged on be positioned in the middle of runner, with the circular trough of water wheels room one, magnet is located at the inner side of runner, around above-mentioned circular trough.The shortcoming of the program is: because coil is arranged on the inner side of runner, and what runner radius can not be done is too little, limits the raising of specific speed; Internal diameter due to water supply pipe of usually registering one's residence is maximum only has 20mm, makes to reduce runner to promote the flow rate of water flow impacting runner, conflicts mutually with effective cutting area of guarantee coil necessity.In addition, the blade on program runner is too little, and space between runner inner wall is too large, reduces the utilization ratio of water flow dynamic energy and the load capacity of runner.

Summary of the invention

The present invention is intended to the shortcoming and defect overcoming prior art, provides a kind of hydraulic turbine generator of accessible water supply pipe.Technological scheme of the present invention is: a kind of hydraulic turbine generator, comprise water wheels room and power compartment, the water intake that described water wheels room is provided with that bore is equal, dead in line, direction are contrary and water outlet, water wheels indoor are provided with runner, described runner is made up of wheel disc and bucket or blade, also comprise the reducing pipe be connected with described water intake and the increaser be connected with described water outlet, the inwall of described water wheels room and runner rotate between the space scanned and adopt the design of even small―gap suture, and described power compartment is located at the outside of above-mentioned water wheels room.

Preferably, the angle of throat of described reducing pipe is 15 ~ 30 °.

Preferably, described reducing pipe axial length is greater than large mouth internal diameter.

The inwall of described water wheels room and runner rotate gap between the space scanned and are advisable with≤1mm, preferably≤0.5mm.

Compared with prior art the present invention has the flow rate of water flow increasing substantially and impact runner bucket, improve specific speed and the load capacity of runner, and then improve the beneficial effect of generating efficiency, simultaneously, also have and keep tail water flow velocity, meet the flow velocity and pressure requirements that supply water, and be convenient to the beneficial effects such as installation.

Accompanying drawing explanation

Fig. 1 is the perspective view of embodiment 1

Fig. 2 is the left view of Fig. 1

Fig. 3 is the disassembly diagram of Fig. 1

Fig. 4 is the three-dimensional structure diagram of runner in Fig. 3

Fig. 5 be in Fig. 3 water wheels room along left and right centerline sectional view

Fig. 6 be reducing pipe in Fig. 3 plan view and along axis horizontal sectional view

Fig. 7 is the perspective view of embodiment 2

In figure: 1 is runner, 1.1 is wheel disc, and 1.2 is bucket or blade, 2 is water wheels room, and 2.1 is water intake, and 2.2 is water outlet, 2.3 for holding the annular housing of bucket, and 3 is power compartment, and 4 is aqueduct, 4.1 is reducing pipe, and 4.2 is large mouth joint, and 4.3 is osculum joint, 5 is draft tube, D is the large mouth internal diameter of reducing pipe, and d is reducing pipe osculum internal diameter, and L is reducing pipe axial length.

Embodiment

Below in conjunction with drawings and Examples, the present invention is described in further detail.

Embodiment 1

See accompanying drawing 1-6, the present embodiment comprises water wheels room 2, power compartment 3, also comprise aqueduct 4 and draft tube 5, runner 1 is installed in water wheels room 2, runner 1 is made up of wheel disc 1.1 and bucket 1.2, water wheels room 2 is provided with water intake 2.1 and water outlet 2.2, water intake 2.1 is equal with water outlet 2.2 bore, dead in line, direction is contrary, aqueduct 4 is connected with water intake 2.1, draft tube 5 is connected with water outlet 2.2 mouthfuls, aqueduct 4 is by reducing pipe 4.1, large mouth joint 4.2 and osculum joint 4.3 are formed, the angle of throat of reducing pipe 4.1 16 °, axial length is about 35mm, the present embodiment water supply pipe of registering one's residence adopts relatively conventional DN20 that is 6 to be in charge of, therefore, the large mouth internal diameter of reducing pipe 4.1 equals 20mm, osculum internal diameter is set to 10mm, water wheels room water intake 2.1 corresponding with it, the internal diameter that the internal diameter of water outlet 2.2 and water wheels room 1 surround the annular housing 2.3 of bucket 1.2 part is 10mm, the axial length L of reducing pipe 4.1 is about 1.75 times of large mouth internal diameter D, the flow flowing into, flow out reducing pipe 4.1 due to the same time is equal, namely the product of the flow velocity at large open area and large mouth place equals the product of osculum area and osculum place flow velocity, so, substitute into large and small mouth internal diameter numerical value and can try to achieve 4 times that osculum place flow velocity is large mouth place flow velocity.Described water outlet 2.2 is equal with water intake 2.1 bore, dead in line, direction are contrary, and described draft tube 5 and aqueduct 4 dead in line, positional symmetry, structure, size correspondence are identical.The inwall of described water wheels room 1 and runner 1 rotate between the space scanned and adopt the design of even small―gap suture, design gaps 0.5mm, therefore, the external diameter of described bucket 1.2 is 10mm-0.5mm-0.5mm=9mm, rotating speed is promoted for solving, except improving the flow velocity of current, can also reduce the diameter of runner 1, the intended diameter of the present embodiment runner 1 is 55mm.The technological scheme that the present embodiment provides, can, under identical watering condition, make generator speed promote about 10 times, and, make tail water flow velocity reach the user demand of user.

Embodiment 2

See accompanying drawing 7, compared with embodiment 1, difference is mainly: described runner 1 have employed does not have directive blade 1.2, thus, do not need the product facility selecting different direction design according to pipeline rout in an installation, namely aqueduct 4 and draft tube 5 can exchange, and have and install advantage more easily compared with embodiment 1.All the other do not address part, identical with embodiment 1.

It is pointed out that every equivalent transformation utilizing specification of the present invention and accompanying drawing content to do, or the different expression of identical essence implication, and be directly or indirectly used in other relevant technical fields, all in scope of patent protection of the present invention.

Claims

1. a hydraulic turbine generator, comprise water wheels room and power compartment, the water intake that described water wheels room is provided with that bore is equal, dead in line, direction are contrary and water outlet, water wheels indoor are provided with runner, described runner is made up of wheel disc and bucket or blade, it is characterized in that: also comprise the reducing pipe be connected with described water intake and the increaser be connected with described water outlet, the inwall of described water wheels room and runner rotate between the space scanned and adopt the design of even small―gap suture, and described power compartment is located at the outside of above-mentioned water wheels room.

2. a kind of hydraulic turbine generator according to claim 1, is characterized in that: the angle of throat of described reducing pipe is 15 ~ 30 °.

3. a kind of hydraulic turbine generator according to claim 2, is characterized in that: described reducing pipe axial length is greater than large mouth internal diameter.

4. a kind of hydraulic turbine generator according to claim 1,2 or 3, is characterized in that: the inwall of described water wheels room and runner rotate the gap≤1mm between the space scanned.

5. a kind of hydraulic turbine generator according to claim 4, is characterized in that: the inwall of described water wheels room and runner rotate the gap≤0.5mm between the space scanned.