Flow guide piece for hydroelectric generator

Abstract

The utility model discloses a flow guide piece for a hydroelectric generator, which relates to the technical field of hydroelectric generation and is characterized by comprising a flow guide piece body, the flow guide piece body is detachably arranged in a water inlet runner of the hydroelectric generator, and a flow guide inlet and a flow guide outlet are arranged on the flow guide piece body. The diversion outlet is communicated with the water inlet flow channel through the diversion inlet, and water flow can be guided through the diversion outlet and impact an impeller of the hydroelectric generator. The flow guide piece body is installed in a water inlet runner of the hydroelectric generator, water flow flows in from the water inlet runner and then flows to the flow guide outlet through the flow guide inlet, finally, the water flow passes through the flow guide outlet and impacts an impeller of the hydroelectric generator, the impeller of the hydroelectric generator rotates under the impact effect of the water flow, and therefore hydroelectric generation is achieved. Therefore, the water flow can be limited through the flow guide piece body, and the generating capacity of the hydroelectric generator is adjusted by adjusting the flow of water entering the hydroelectric generator.

Description

Technical Field

[0001] The utility model relates to the technical field of hydroelectric power generation, in particular to a flow guide member used for a hydroelectric generator. Background Art

[0002] The hydroelectric generator is one of the more commonly used generators at present. It uses water to flow through the impeller, converting the kinetic energy of the water into mechanical energy that drives the impeller to rotate. The hydroelectric generator converts the mechanical energy into electrical energy according to the principle of generating electricity by coil cutting the magnetic field, thereby achieving hydroelectric power generation.

[0003] At present, the Chinese patent with the announcement number CN107575331A discloses a hydroelectric generator, which includes a housing, a rotating shaft, an impeller, a coil and a magnet. The housing has a magnetic cavity and a water-passing cavity, the magnetic cavity and the water-passing cavity are connected through a water-passing channel, the impeller is arranged in the water-passing cavity, the magnet is arranged in the magnetic cavity, the two ends of the rotating shaft are respectively connected to the magnet and the impeller, and the housing is provided with an isolation member located at the water-passing channel to prevent impurities in the water-passing cavity from entering the magnetic cavity. When the hydroelectric generator is used, the water inlet and the water outlet of the housing are respectively connected to the corresponding pipelines, and after the water flow enters the housing, it impacts the impeller in the water-passing cavity to rotate, and the magnet in the magnetic cavity is driven to rotate by the rotating shaft connected to the impeller, thereby forming a rotating magnetic field, and the coil outside the housing cuts the magnetic flux lines to generate an induced current to complete power generation.

[0004] The water flow velocity at the water inlet directly affects the power generation of the hydroelectric generator, that is, the faster the water flow velocity at the water inlet, the closer the impeller rotation speed can be to the optimal and constant rotation speed, ensuring the power generation efficiency of the generator. Conversely, the slower the water flow velocity at the water inlet, the lower the power generation efficiency of the generator. However, since the cross-sectional area of ​​the water inlet of the shell is fixed and the water inlet is directly connected to the tap water supply pipe, the water flow entering the water inlet cannot be adjusted. The user cannot adjust the water flow velocity entering the hydroelectric generator according to the water supply of the tap water supply pipe, thereby failing to ensure the power generation of the hydroelectric generator and resulting in low water flow utilization. Utility Model Content

[0005] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a flow guide for a hydroelectric generator. The technical problem to be solved by the present invention is: how to adjust the flow velocity of the water acting on the hydroelectric generator to improve the utilization rate of the water flow.

[0006] The above technical purpose of the utility model is achieved through the following technical solutions: a flow guide for a hydroelectric generator, comprising a flow guide body, the flow guide body being detachably arranged in a water inlet channel of the hydroelectric generator, the flow guide body being provided with a flow guide inlet and a flow guide outlet, and the flow guide inlet connects the flow guide outlet with the water inlet channel, and the water flow can be guided through the flow guide outlet and impact the impeller of the hydroelectric generator.

[0007] Through the above technical solution, the guide member body is installed in the water inlet channel of the hydroelectric generator, water flows in from the water inlet channel, and then flows to the guide outlet through the guide inlet, and finally the water flows through the guide outlet and impacts the impeller of the hydroelectric generator. The impeller of the hydroelectric generator rotates under the impact of the water flow, thereby realizing hydroelectric power generation. Therefore, the water flow velocity is increased through the guide member body, thereby adjusting the power generation of the hydroelectric generator.

[0008] Preferably, the guide body can be plugged in and out of the water inlet channel, the guide body has a boss, the outer wall of the boss is provided with a limiting portion, and the limiting portion can abut against the inner wall of the water inlet channel.

[0009] Through the above technical solution, the user can insert the guide body into the water inlet channel through external force, and abut against the inner wall of the water inlet channel through the limiting part, so that the position of the guide body in the water inlet channel is relatively stable; it is also convenient for the user to remove the guide body from the water inlet channel.

[0010] Preferably, the water inlet channel has a step surface, and the inner end surface of the boss can abut against the step surface.

[0011] Through the above technical solution, after the inner end surface of the boss abuts against the step surface, the step surface can limit the boss to ensure the stability of the relative position of the guide member body and the hydroelectric generator.

[0012] Preferably, the inner end of the guide body is provided with a yielding curved surface, and the guide outlet is opened on the yielding curved surface.

[0013] Through the above technical solution, the diversion outlet is opened on the yielding curved surface, which is convenient for production.

[0014] Preferably, the yielding curved surface is adapted to the impeller of the hydroelectric generator.

[0015] Through the above technical solution, the impeller of the hydroelectric generator can be avoided on the yielding curved surface without interfering with the normal rotation of the impeller.

[0016] Preferably, a groove is provided on the guide body.

[0017] Through the above technical solution, the groove can match the shape of the hydroelectric generator; in addition, the user can judge the installation angle by the orientation of the groove, so that the guide piece can be inserted into the water inlet channel of the hydroelectric generator in the correct posture, which is convenient for the user to install the guide piece body.

[0018] Preferably, the groove is matched with the inner wall of the water inlet channel.

[0019] Through the above technical solution, the relative position of the guide body after being inserted into the water inlet channel is unique, thereby avoiding the possibility of user misoperation and ensuring that the guide body can work stably.

[0020] Preferably, the inner side wall of the flow guide inlet is provided with a flow guide surface.

[0021] Through the above technical solution, under the action of the guide surface, the guiding effect on the water flow is further increased.

[0022] Preferably, the diversion outlet is close to the impeller of the hydroelectric generator, and the diversion outlet is eccentrically arranged with respect to the central axis of the impeller of the hydroelectric generator.

[0023] Through the above technical solution, the diversion outlet is eccentric to the impeller, so that the water flow can directly impact the impeller after passing through the diversion outlet, thereby ensuring that the force of the water flow on the impeller can drive the impeller to rotate.

[0024] Preferably, the flow area of ​​the guide outlet is adjustable.

[0025] To sum up, the beneficial effect of the utility model compared with the prior art is: the user can select a guide body of the required caliber according to the actual water supply flow of the water pipe and install it into the hydroelectric generator, thereby ensuring the water flow rate acting on the impeller of the hydroelectric generator, and then ensuring the power generation of the hydroelectric generator, which is convenient for user operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the explosion structure of the embodiment;

[0027] Figure 2 is a schematic diagram of the structure of the guide body;

[0028] Figure 3 for Figure 2 Another side structural schematic diagram;

[0029] Figure 4 It is a schematic diagram of the guide body after the guide outlet is changed;

[0030] Figure 5 It is a schematic diagram of another guide body after the guide outlet is changed;

[0031] Figure 6It is a schematic diagram of another guide body after the guide outlet is changed;

[0032] Figure 7 is a cross-sectional schematic diagram of the assembly of the flow guide body and the hydroelectric generator in the embodiment;

[0033] Figure 8 Another exploded structural schematic diagram of the embodiment;

[0034] Fig. 9 for Figure 8 The guide body in the.

[0035] Figure numerals: 1. guide body; 2. guide inlet; 3. guide outlet; 4. boss; 5. limit portion; 6. yielding curved surface; 7. groove; 8. guide surface; 9. hydroelectric generator; 91. water inlet channel; 92. impeller; 93. step surface. DETAILED DESCRIPTION

[0036] In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0037] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0038] A flow guide for a hydroelectric generator, such as Figures 1 to 9 As shown, the hydroelectric generator 9 has an inlet channel 91 and an outlet channel, and the hydroelectric generator 9 has an impeller 92 for driving itself to generate electricity; the present guide member includes a guide member body 1, and the guide member body 1 is detachably arranged in the water inlet channel 91. Specifically, the guide member body 1 is pluggable and arranged in the water inlet channel 91, that is, the user can insert the guide member body 1 into the water inlet channel 91 by external force, and can also pull the guide member body 1 out of the water inlet channel 91 by external force. As another solution, the guide member body 1 and the water inlet channel 91 can also be detachable by means of a threaded connection.

[0039] The guide body 1 has a boss 4, and the outer wall of the boss 4 is provided with a limiting portion 5, and the outer wall of the limiting portion 5 can abut against the inner wall of the water inlet channel 91. The limiting portion 5 can be a protrusion integrally formed with the boss 4, or a sealing ring arranged on the outer side of the boss 4, as long as it can ensure that the limiting portion 5 can abut against the inner wall of the water inlet channel 91, thereby preventing the guide body 1 from shaking in the water inlet channel 91.

[0040] The end surface of the boss 4 can be pressed against the inner wall of the water inlet channel 91 . Specifically, the water inlet channel 91 has a step surface 93 , and the step surface 93 can be pressed against the inner end surface of the boss 4 , thereby limiting the position of the boss 4 .

[0041] The guide body 1 is provided with a guide inlet 2 and a guide outlet 3 which are connected to each other, and the guide inlet 2 is connected to the water inlet channel 91, and the guide outlet 3 is close to the impeller 92, so that the water flow can impact the impeller 92 through the guide outlet 3. Furthermore, the guide outlet 3 is eccentrically arranged with respect to the central axis of the impeller 92, such as Figure 1 , Figure 3 As shown, in a specific implementation, the water inlet channel 91 can be eccentrically arranged with respect to the center of the hydroelectric generator 9, and the guide outlet 3 intersects with the central axis of the impeller 92; Figure 8 , Fig. 9 As shown, the water inlet channel 91 may be located at the center of the hydroelectric generator 9, while the diversion outlet 3 and the impeller 92 are eccentrically arranged, as long as the water flow passing through the diversion outlet 3 can drive the impeller 92 to rotate.

[0042] The inner end of the guide body 1 is provided with a clearance curved surface 6 , and the guide outlet 3 is opened on the clearance curved surface 6 ; the clearance curved surface 6 is adapted to the shape of the impeller 92 , thereby avoiding interference between the inner end of the guide body 1 and the impeller 92 .

[0043] The flow area of ​​the diversion outlet 3 is adjustable, that is, the flow area of ​​the diversion outlet 3 can be adjusted according to the actual needs of the user, and the user can choose to increase or decrease the flow area of ​​the diversion outlet 3.

[0044] It should be noted that the flow area of ​​the guide outlet 3 can directly affect the water flow velocity that impacts the impeller 92, so when using, the user can prepare in advance a number of guide body 1 with different flow areas of the guide outlet 3, such as Figures 2 to 6 As shown, the flow area of ​​the diversion outlet 3 is variable, and the diversion component body 1 with different diversion outlets 3 is installed according to the actual water supply volume of the water supply pipeline.

[0045] The inner side wall of the flow guide inlet 2 is provided with a flow guide surface 8. Preferably, the flow guide inlet 2 is trumpet-shaped.

[0046] A groove 7 is formed on the guide body 1 , and the groove 7 is close to one end of the guide outlet 3 . The groove 7 is matched with the inner wall of the water inlet channel 91 , that is, the inner wall of the water inlet channel 91 can fit with the groove wall of the groove 7 .

[0047] Working principle:

[0048] The user determines the installation angle through the groove 7, and then inserts the guide body 1 into the water inlet channel 91 with external force, so that the groove wall of the groove 7 fits with the inner wall of the water inlet channel 91. The hydroelectric generator 9 is connected to the water pipe, so that water flows into the water inlet channel 91, and then is guided by the diversion inlet 2 and the diversion outlet 3 and acts on the impeller 92. The impeller 92 rotates under the impact of the water flow, and the hydroelectric generator 9 starts to work and generate electricity.

[0049] The above description is merely an exemplary embodiment of the present invention and is not intended to limit the protection scope of the present invention. The protection scope of the present invention is determined by the appended claims.

Claims

1. A flow guide for a hydroelectric generator, characterized in that: The invention comprises a flow guide body (1), wherein the flow guide body (1) is detachably arranged in a water inlet channel (91) of a hydroelectric generator (9), and the flow guide body (1) is provided with a flow guide inlet (2) and a flow guide outlet (3), and the flow guide inlet (2) connects the flow guide outlet (3) with the water inlet channel (91), so that water flow can be guided through the flow guide outlet (3) to impact an impeller (92) of the hydroelectric generator (9).

2. The flow guide according to claim 1, characterized in that: The guide body (1) can be inserted and removed in the water inlet channel (91), and the guide body (1) has a boss (4). The outer wall of the boss (4) is provided with a limiting portion (5), and the limiting portion (5) can abut against the inner wall of the water inlet channel (91).

3. The flow guide according to claim 2, characterized in that: The water inlet channel (91) has a step surface (93) in it, and the inner end surface of the boss (4) can abut against the step surface (93).

4. The flow guide according to claim 1, characterized in that: The inner end of the flow guide body (1) is provided with a yielding curved surface (6), and the flow guide outlet (3) is opened on the yielding curved surface (6).

5. The flow guide according to claim 4, characterized in that: The said yielding curved surface (6) is adapted to the impeller (92) of the said hydroelectric generator (9).

6. The flow guide according to claim 1, characterized in that: The flow guide body (1) is provided with a groove (7).

7. The flow guide according to claim 6, characterized in that: The groove (7) is adapted to the inner wall of the water inlet channel (91).

8. The flow guide according to claim 1, characterized in that: The inner side wall of the flow guide inlet (2) is provided with a flow guide surface (8).

9. The flow guide according to claim 1, characterized in that: The diversion outlet (3) is close to the impeller (92) of the hydroelectric generator (9), and the diversion outlet (3) is eccentrically arranged with respect to the central axis of the impeller (92) of the hydroelectric generator (9).

10. The flow guide according to claim 1, characterized in that: The flow area of ​​the guide outlet (3) is adjustable.

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