CN213928610U

CN213928610U - Real-time monitoring equipment for water turbine

Info

Publication number: CN213928610U
Application number: CN202022280261.7U
Authority: CN
Inventors: 任方; 孙小兵; 张程辉; 谭天波; 刘超; 管鑫
Original assignee: Hunan Provincial Water Transportation Construction & Investment Group Co ltd
Current assignee: Hunan Provincial Water Transportation Construction & Investment Group Co ltd
Priority date: 2020-10-14
Filing date: 2020-10-14
Publication date: 2021-08-10
Anticipated expiration: 2030-10-14

Abstract

The utility model discloses a real-time monitoring device of a water turbine, which comprises a shell and a main shaft, wherein a terminal surface chamber, a power chamber and a detection chamber are arranged in the shell from left to right in sequence, and a power water wheel is sleeved on the main shaft; the left end part of the main shaft is arranged in the end surface chamber, and the right end part of the main shaft penetrates through the power chamber and the detection chamber in sequence to be freely arranged; a distance induction structure for transmitting signals to the controller is arranged in the end face chamber and faces the left end of the main shaft; the side wall of the detection chamber is provided with an information receiving structure, the main shaft is sleeved with a detection cylinder, and the detection cylinder is provided with an information sending structure matched with the information receiving structure. This scheme is through the setting of apart from response structure, information transmission structure and information receiving structure, can monitor the beating of main shaft horizontal position and vertical position simultaneously to improve the accuracy of detected data, suitable using widely.

Description

Real-time monitoring equipment for water turbine

Technical Field

The utility model belongs to the technical field of hydraulic turbine monitoring, especially, belong to a hydraulic turbine real-time supervision equipment.

Background

The water turbine generator set consists of water turbine and generator set driven by the water turbine, and the water turbine in the set is used as prime mover to drive the generator for generating electricity and converting the mechanical energy of water body into electric energy. Hydroelectric set usually includes frame, water wheels and bearing, and the waterwheel setting is on the bearing, and whole hydroelectric set can be supported to the frame, and at hydroelectric set operation's in-process, rivers can make frame or bearing produce irregular vibration to lead to hydroelectric set's partial component to break down or the fracture.

The existing method for detecting the vibration of the water turbine is to arrange a vibration sensor on a frame or a bearing, detect the vibration amplitude and the vibration frequency of the frame or the bearing through the vibration sensor, and transmit information to a system of the water turbine generator set, so that an operator can master the vibration amplitude and the vibration frequency of the frame or the bearing. Therefore, the vibration signal actually sensed by the bimorph may not be a real vibration signal, mainly because the real vibration signal generated by the vibration generally has three dimensional components, resulting in instability and insensitivity of the vibration sensor, while in the water turbine generator set, the frame or the bearing is in a vibration state of multiple directions for a long time, and thus, the vibration sensor may increase the risks of missing and false reports, resulting in inaccuracy of the detected data, and in severe cases, may also cause a significant accident.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: the utility model provides a can detect hydraulic turbine real-time detection equipment to diversified vibrations of hydraulic turbine main shaft.

The utility model adopts the technical scheme as follows:

a real-time monitoring device for a water turbine comprises a shell and a main shaft, wherein an end face chamber, a power chamber and a detection chamber are sequentially arranged in the shell from left to right, a power water wheel is sleeved on the main shaft, and the power water wheel is arranged in the power chamber; a controller is arranged in the shell; the left end part of the main shaft is arranged in the end surface chamber, and the right end part of the main shaft penetrates through the power chamber and the detection chamber in sequence to be freely arranged; a distance induction structure for transmitting signals to a controller is arranged in the end face chamber, and the distance induction structure is arranged towards the left end of the main shaft; the side wall of the detection chamber is provided with an information receiving structure, the main shaft is sleeved with a detection cylinder, and the detection cylinder is provided with an information sending structure matched with the information receiving structure. Setting of main shaft and power water wheels, be used for absorbing hydroenergy in the power house, rotate with the drive main shaft, apart from the setting of response structure, be used for responding to the interval of main shaft left side tip to terminal surface room lateral wall, with the horizontal vibration of this detection main shaft, detect the setting of indoor signal reception and signalling structure, then be used for detecting the vibration of the vertical direction of main shaft, with this purpose that reaches the diversified vibration to the hydraulic turbine main shaft and monitor, the setting of controller, then can be with received detection signal transmission to remote terminal, the operator of being convenient for observes, in time handle the abnormal conditions, guarantee the result of use.

Preferably, a sealing bearing matched with the main shaft is arranged on the side wall of the power chamber. The setting of sealed bearing can avoid rivers to get into terminal surface room and detection indoor, causes the influence to its inside electric elements's normal operating.

Preferably, the distance sensing structure comprises a distance sensor, and the left end of the main shaft is further provided with a sensing block matched with the distance sensor. The distance sensor is prior art, can detect the interval between main shaft tip and the distance sensor to this horizontal runout of monitoring main shaft.

Preferably, the information sending structure comprises an infrared emitter horizontally arranged, the information receiving structure comprises an infrared detection ring coaxially arranged with the main shaft, and the infrared detection ring is suitable for transmitting signals to the controller. The infrared emitter that the level set up and the setting of detection chamber lateral wall infrared ray detection ring, in the use, infrared emitter opens all the time, and infrared ray detection ring can be with received infrared signal transmission to controller, can obtain the main shaft along the skew condition of vertical direction size change after handling, has guaranteed monitoring effect.

Preferably, the infrared detection ring is coaxially provided with three layers, and the infrared emitter is arranged towards the infrared detection ring at the middle position. The three-layer infrared ray detection ring of coaxial setting, the detection ring of infrared emitter directive intermediate position under initial condition takes place to beat along vertical direction as the main shaft, and the infrared light of infrared emitter transmission shines to outer detection ring room, and the main shaft can in time be braked to the controller, avoids the too big life who influences the device of amplitude, and the practicality is strong.

Preferably, still be provided with the mount in the detection room, it is perpendicular to follow on the mount main shaft axis direction slides and is provided with detection module, the cover is equipped with the cooperation wheel with detection module complex on the main shaft, detection module includes the wheel carrier, rotates the detection wheel that sets up on the wheel carrier and is used for detecting the rotational speed sensor of detection wheel rotational speed, rotational speed sensor is applicable to signal transmission to controller. Under the hydraulic turbine stopped to be quiescent condition, ball valve and stator had closed completely in theory, and the rotor stayed in certain position, actually because there is the error in the machining precision and the installation of ball valve and stator, ball valve and stator can make the hydraulic turbine unit have the leakage, and then lead to the hydraulic turbine to take place the wriggling phenomenon. If can not catch this kind of creeping of unit in time, and take braking measure, just inevitablely make the long-time low-speed rotation of unit and make the axle bush burn out, influence the safe normal operating of unit, detection module's setting, then be used for detecting the wriggling condition under the hydraulic turbine quiescent condition, the detection wheel that slides and set up, can contact with the cooperation wheel under the hydraulic turbine quiescent condition, when the hydraulic turbine appears rotating, can drive the detection wheel and rotate, revolution speed sensor then can transmit the rotational speed condition to the controller in real time, the operator of being convenient for observes the wriggling condition of hydraulic turbine main shaft in real time.

Preferably, the outer side walls of the matching wheel and the detection wheel are provided with rubber buffer layers. The setting of rubber buffer layer can avoid appearing the rigidity collision between detection wheel and the cooperation wheel in the use, simultaneously, can also increase the friction between detection wheel and the cooperation wheel, improves the accuracy that detects the cooperation wheel rotation condition detection of detection wheel.

Preferably, a driving motor is arranged in the detection chamber, an offset gear is arranged on a rotating shaft of the driving motor, an offset rack meshed with the offset gear is arranged on the wheel carrier, and the driving motor is electrically connected with the controller. The driving motor, the offset gear and the offset rack are arranged, and the controller can control the driving motor to rotate so as to adjust the contact/separation state of the detection wheel and the matching wheel.

Preferably, the bottom end of the fixed frame is further provided with a pressure spring in contact with the wheel carrier, and the pressure spring is suitable for pushing the wheel carrier to the matching wheel. The setting of pressure spring, when the hydraulic turbine stopped to use, the steerable driving motor outage of controller, the pressure spring will detect the wheel and push away to hugging closely with the cooperation wheel, and under hydraulic turbine operating condition, the controller is controlled driving motor again and is opened, will detect wheel and cooperation wheel separation, reduces the energy consumption, the operation of being convenient for.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

1. the utility model discloses in, through the setting of distance response structure (distance sensor), information transmission structure (infrared emitter) and information receiving structure (infrared ray detection ring), can monitor the beating of main shaft horizontal position and vertical position simultaneously to improve the accuracy that detects data, suitable using widely.

2. The utility model discloses in, through the detection ring that the three-layer set up, take place to beat along vertical direction when the main shaft, the infrared light of infrared emitter transmission shines to outer detection ring room, and the main shaft can in time be braked to the controller, avoids the too big life who influences the device of amplitude.

3. The utility model discloses in, through the setting of detecting wheel and cooperation wheel, can detect the wriggling condition under the hydraulic turbine quiescent condition, the wriggling condition of the hydraulic turbine main shaft is surveyed in real time to the operator of being convenient for, improves the result of use.

4. The utility model discloses in, through pressure spring and driving motor to detection module's position control, not only installation, convenient to use, simultaneously, can greatly reduced energy consumption, suitable using widely.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic sectional view of the present invention.

Fig. 2 is an enlarged schematic view of region a in fig. 1.

The labels in the figure are: 1-shell, 2-main shaft, 3-end face chamber, 4-power chamber, 5-detection chamber, 6-power water wheel, 7-controller, 8-detection cylinder, 9-sealing bearing, 10-distance sensor, 11-induction block, 12-infrared emitter, 13-infrared detection ring, 14-fixing frame, 15-matching wheel, 16-wheel frame, 17-detection wheel, 18-rotation speed sensor, 19-rubber buffer layer, 20-offset gear, 21-offset rack and 22-pressure spring.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention, i.e., the described embodiments are only some, but not all embodiments of the invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.

It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

As shown in fig. 1, a real-time monitoring device for a water turbine comprises a housing 1 and a main shaft 2, wherein an end surface chamber 3, a power chamber 4 and a detection chamber 5 are sequentially arranged in the housing 1 from left to right, a power water wheel 6 is sleeved on the main shaft 2, and the power water wheel 6 is arranged in the power chamber 4; a controller 7 is arranged in the shell 1; the left end part of the main shaft 2 is arranged in the end surface chamber 3, and the right end part of the main shaft 2 passes through the power chamber 4 and the detection chamber 5 in sequence to be freely arranged; a distance induction structure for transmitting signals to a controller 7 is arranged in the end face chamber 3 and faces the left end of the main shaft 2; the side wall of the detection chamber 5 is provided with an information receiving structure, the spindle 2 is sleeved with a detection cylinder 8, and the detection cylinder 8 is provided with an information sending structure matched with the information receiving structure.

Specifically, as shown in fig. 1, a sealing bearing 9 engaged with the main shaft 2 is provided on a side wall of the power chamber 4.

Specifically, as shown in fig. 1, the distance sensing structure includes a distance sensor 10, and a sensing block 11 matched with the distance sensor 10 is further disposed at the left end of the spindle 2.

Specifically, as shown in fig. 1 and 2, the information sending structure includes an infrared emitter 12 horizontally disposed, the information receiving structure includes an infrared detection ring 13, the infrared detection ring 13 is coaxially disposed with the main shaft 2, and the infrared detection ring 13 is adapted to transmit a signal to the controller 7.

Specifically, as shown in fig. 1 and 2, the infrared detection ring 13 is coaxially provided with three layers, and the infrared emitter 12 is disposed toward the infrared detection ring 13 at the middle position.

Specifically, as shown in fig. 2, a fixing frame 14 is further arranged in the detection chamber 5, a detection module is arranged on the fixing frame 14 in a sliding manner along the direction perpendicular to the axis of the main shaft 2, a matching wheel 15 matched with the detection module is sleeved on the main shaft 2, the detection module comprises a wheel frame 16, a detection wheel 17 rotatably arranged on the wheel frame 16, and a rotation speed sensor 18 for detecting the rotation speed of the detection wheel 17, and the rotation speed sensor 18 is suitable for transmitting signals to the controller 7.

Specifically, as shown in fig. 1 and 2, the outer side walls of the matching wheel 15 and the detecting wheel 17 are both provided with a rubber buffer layer 19.

Specifically, as shown in fig. 2, a driving motor is arranged in the detection chamber 5, an offset gear 20 is arranged on a rotating shaft of the driving motor, an offset rack 21 engaged with the offset gear 20 is arranged on the wheel carrier 16, and the driving motor is electrically connected with the controller 7.

Specifically, as shown in fig. 2, a compression spring 22 contacting with the wheel frame 16 is further disposed at the bottom end of the fixing frame 14, and the compression spring 22 is adapted to push the wheel frame 16 toward the engaging wheel 15.

In the using process, water flow acts on the power water wheel 6, the main shaft 2 is driven to rotate by the power water wheel 6, the end part at the right side of the main shaft 2 is connected with a generator so as to achieve the aim of hydroelectric generation, due to the large impact of the water flow, the main shaft 2 will be irregularly vibrated during the use process, and at this time, the distance sensor 10 can transmit the horizontal position signal of the sensing block 11 to the controller 7 in real time, the infrared detection ring 13 can transmit the infrared light signal emitted by the infrared emitter 12 to the controller 7 in real time, the controller 7 can transmit the signal to a remote terminal, and an operator can remotely detect the vibration condition of the main shaft 2 in real time, and in addition, when the vertical jumping situation exceeds a specified value (the outer infrared detection ring 13 receives an infrared signal), the controller 7 can brake the spindle 2 in time, and the influence of overlarge amplitude on the service life of the equipment is avoided.

When the hydraulic turbine is in a static state, the controller 7 controls the driving motor to be powered off, the driving gear can rotate freely, the wheel carrier 16 moves in the direction close to the matching wheel 15 under the action of the pressure spring 22 until the detection wheel 17 contacts with the matching wheel 15, therefore, when the matching wheel 15 rotates, the detection wheel 17 can be driven to rotate synchronously, the rotation speed sensor 18 transmits the rotation condition of the detection wheel 17 to the controller 7 in real time, the detection wheel is monitored by an operator, when the hydraulic turbine is ready to be started, the controller 7 controls the driving motor to be powered on, the driving motor drives the driving gear to rotate by a step-by-step designated angle, the driving gear pulls back the rack through the offset rack 21, the detection wheel 17 is controlled to be separated from the matching wheel 15, and interference to the power generation process is avoided.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a hydraulic turbine real-time supervision equipment, includes casing (1) and main shaft (2), its characterized in that, terminal surface room (3), power room (4) and detection room (5) have set gradually from left to right in casing (1), wherein:

a power water wheel (6) is sleeved on the main shaft (2), and the power water wheel (6) is arranged in the power chamber (4);

a controller (7) is arranged in the shell (1);

the left end part of the main shaft (2) is arranged in the end surface chamber (3), and the right end part of the main shaft (2) penetrates through the power chamber (4) and the detection chamber (5) in sequence to be freely arranged;

a distance induction structure for transmitting signals to a controller (7) is arranged in the end face chamber (3), and the distance induction structure is arranged towards the left end of the main shaft (2);

the side wall of the detection chamber (5) is provided with an information receiving structure, the main shaft (2) is sleeved with a detection barrel (8), and the detection barrel (8) is provided with an information sending structure matched with the information receiving structure.

2. A real-time monitoring device of a water turbine according to claim 1, characterized in that a sealing bearing (9) matched with the main shaft (2) is arranged on the side wall of the power chamber (4).

3. The real-time monitoring equipment of the water turbine is characterized in that the distance sensing structure comprises a distance sensor (10), and a sensing block (11) matched with the distance sensor (10) is further arranged at the left end of the main shaft (2).

4. A turbine real-time monitoring apparatus according to claim 1, characterized in that the information sending structure comprises a horizontally arranged infrared emitter (12), the information receiving structure comprises an infrared detection ring (13), the infrared detection ring (13) is arranged coaxially with the main shaft (2), the infrared detection ring (13) is adapted to transmit signals to the controller (7).

5. Real-time monitoring equipment of water turbines according to claim 4, characterized in that the infrared detecting ring (13) is coaxially provided with three layers, and the infrared emitter (12) is arranged towards the infrared detecting ring (13) in the middle position.

6. The real-time water turbine monitoring device according to any one of claims 1 to 5, characterized in that a fixed frame (14) is further arranged in the detection chamber (5), a detection module is arranged on the fixed frame (14) in a sliding manner along a direction perpendicular to the axis of the main shaft (2), a matching wheel (15) matched with the detection module is sleeved on the main shaft (2), the detection module comprises a wheel carrier (16), a detection wheel (17) rotatably arranged on the wheel carrier (16) and a rotation speed sensor (18) for detecting the rotation speed of the detection wheel (17), and the rotation speed sensor (18) is suitable for transmitting signals to the controller (7).

7. The real-time monitoring equipment of the water turbine is characterized in that rubber buffer layers (19) are arranged on the outer side walls of the matching wheel (15) and the detection wheel (17).

8. The real-time water turbine monitoring device according to claim 6, wherein a driving motor is arranged in the detection chamber (5), an offset gear (20) is arranged on a rotating shaft of the driving motor, an offset rack (21) meshed with the offset gear (20) is arranged on the wheel carrier (16), and the driving motor is electrically connected with the controller (7).

9. The real-time monitoring equipment of the water turbine as claimed in claim 6, wherein the bottom end of the fixed frame (14) is further provided with a compression spring (22) in contact with the wheel carrier (16), and the compression spring (22) is suitable for pushing the wheel carrier (16) towards the matching wheel (15).