CN222283006U - A cooling water replenishing device for a generator - Google Patents

Abstract

The utility model discloses a generator cooling water replenishment device, comprising a water tank body, the water tank body is connected to a cooling water circulation pipeline; the water tank body is connected to an electrically controlled replenishment valve through a replenishment pipe, the control signal receiving end of the electrically controlled replenishment valve is electrically connected to an electrical signal output end of a pressure-controlled switch; a buoyancy sensing device is arranged in the water tank body, the buoyancy sensing device is used to control the driving movable pressure rod to move up and down with the water level, and the pressure-controlled switch is located below the movable pressure rod. The utility model solves the problem that the water volume of the generator rotor cooling water tank is easily consumed and replenishment cannot be found in time.

Description

Generator cooling water moisturizing device

Technical Field

The utility model relates to the technical field of generator cooling, in particular to a cooling water supplementing device for a generator.

Background

The loss that the generator during operation produced is mostly expressed with the form of heat for generator operating temperature is higher, adopts cooling water to keep warm usually, but because there is the evaporation and the leakage of cooling water probably to exist in the cooling process, leads to the water yield in the water tank to reduce gradually, and the cooling effect is difficult to maintain, and this kind of loss is irregular emergence, and then hardly in time is found, if the moisturizing is untimely, very easily causes the security problem of generator work.

Disclosure of Invention

The utility model aims to overcome the defects in the prior art, and provides a cooling water supplementing device for a generator, which solves the problems that the water quantity of a cooling water tank of a generator rotor is easy to consume and the water supplementing cannot be found in time.

The cooling water supplementing device for the generator comprises a water tank body, wherein the water tank body is connected with a cooling water circulation pipeline, the water tank body is connected with an electric control supplementing valve through a supplementing water pipe, a control signal receiving end of the electric control supplementing valve is electrically connected with an electric signal output end of a voltage-controlled switch, a buoyancy sensing device is arranged in the water tank body and used for controlling a driving movable pressure rod to lift along with the up-and-down floating of a water level, and the voltage-controlled switch is positioned below the movable pressure rod.

Further, a mounting hole is formed in the bottom of the water tank body, a sealing ring is fixedly arranged in the mounting hole, the movable pressing rod is sleeved in the sealing ring, the upper end of the movable pressing rod is connected with the buoyancy sensing device, a connecting frame is arranged on the outer wall surface of the water tank body, corresponding to the position of the mounting hole, and the connecting frame is provided with the pressure-controlled switch.

Further, the buoyancy sensing device is provided with a pontoon, the pontoon is fixedly connected to the top end of the movable compression bar, the top end of the pontoon is fixedly connected with a floating block, and the top end of the floating block is provided with a water filling port.

Further, the lower end of the movable compression bar is connected with a limiting ring.

Further, the connecting frame is provided with a mounting plane of the voltage-controlled switch and the lower end face of the limiting ring are arranged in parallel, and the mounting plane is connected with the lower end face of the limiting ring through an elastic piece.

Further, a cavity is arranged in the wall of the pontoon.

The cooling water supplementing device for the generator has the beneficial effects that the buoyancy sensing device senses the change of the water level in the water tank so as to automatically trigger automatic water supplementing, and the water level sensing is based on the physical buoyancy change, so that the cooling water supplementing device is more reliable and effective, and timely in water supplementing.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present utility model;

FIG. 2 is a schematic cross-sectional view of a portion of the structure of FIG. 1;

Fig. 3 is a schematic structural diagram of a buoyancy sensing device according to an embodiment of the present utility model.

Detailed Description

The utility model will be further described with reference to the accompanying drawings.

The cooling water supplementing device for the generator comprises a water tank body 1, wherein the water tank body 1 is connected with a cooling water circulation pipeline, the water tank body 1 is connected with an electric control supplementing water valve 3 through a supplementing water pipe 2, a control signal receiving end of the electric control supplementing water valve 3 is electrically connected with an electric signal output end of a voltage-controlled switch 4, a buoyancy sensing device 5 is arranged in the water tank body 1, the buoyancy sensing device 5 is used for controlling a driving movable pressure rod 6 to lift along with the up-and-down floating of a water level, and the voltage-controlled switch 4 is positioned below the movable pressure rod 6.

This scheme is through the floating change of water level in the buoyancy induction system perception water tank to control movable depression bar elevating movement, when the water level reduces to certain position, movable depression bar is exerted pressure and pressure-controlled switch are last, thereby triggers and sends the signal of telecommunication to automatically controlled moisturizing valve, and the control valve body is opened, takes out water by the moisturizing pipe and supplements in the water tank, can realize high-efficient accurate automatic moisturizing, effectively maintains the cooling effect of generator.

The water tank is characterized in that a mounting hole is formed in the bottom of the water tank body 1, a sealing ring 7 is fixedly arranged in the mounting hole, a movable pressing rod 6 is sleeved in the sealing ring 7, the upper end of the movable pressing rod 6 is connected with the buoyancy sensing device 5, a connecting frame 8 is arranged on the outer wall surface of the water tank body 1 corresponding to the position of the mounting hole, and a voltage-controlled switch 4 is arranged on the connecting frame 8. The sealing ring can seal the gap between the movable pressure rod and the water tank body, so that the phenomenon of water leakage when the movable pressure rod moves is avoided, in addition, the connecting frame adopts a cylindrical structure and is covered on the outer side of the mounting hole, and the safety of the pressure-controlled switch is ensured.

The buoyancy sensing device 5 is provided with a pontoon 51, the pontoon 51 is fixedly connected to the top end of the movable compression bar 6, the top end of the pontoon 51 is fixedly connected with a floating block 52, and the top end of the floating block 52 is provided with a water filling port 53. The lower end of the movable compression bar 6 is connected with a limiting ring 61. The connecting frame 8 is provided with a mounting plane of the voltage-controlled switch 4 and the lower end face of the limiting ring 61 which are arranged in parallel, and the mounting plane is connected with the lower end face of the limiting ring 61 through an elastic piece 62. The elastic piece adopts a pressure spring, and the limiting ring is used for limiting the rising limit position of the movable compression bar.

Wherein, the flotation pontoon with activity depression bar coaxial setting, water loading mouth intercommunication extremely the flotation pontoon inner chamber, the water in the water tank can enter into inside the flotation pontoon by water loading mouth. Along with the reduction of the water level, the buoyancy of water to the pontoon gradually reduces, and the height of the pontoon descends along with the water level, and because a certain amount of water is filled in the pontoon, when the external buoyancy is smaller than the gravity of the pontoon and the water in the pontoon, the lower pressure is generated, the movable compression bar is driven to move downwards, the elastic piece is compressed, and when the water level descends to a certain height, the movable compression bar triggers the pressure-controlled switch, so that automatic water supplementing is realized. The water level rises with the buoyancy of the pontoon gradually increases, and when the buoyancy is larger than the pressure of the pontoon and the water in the pontoon, the movable compression bar can be lifted to be separated from the pressure-controlled switch, and water supplementing is finished. The floating block at the top of the pontoon plays a role in enhancing the buoyancy, namely when the water level reaches the height of the submerged floating block, the buoyancy can be obviously improved, so that the movable compression bar is rapidly lifted, and the phenomenon of water supplementing overflow caused by insufficient buoyancy is avoided.

Preferably, a cavity is arranged in the wall of the pontoon 51. The movable compression bar is also arranged to be of a hollow structure, an opening communicated with the outside atmosphere is formed in the bottom end of the movable compression bar, the cavity is communicated with the atmosphere through the inner cavity of the movable compression bar, in addition, the water storage cavity inside the pontoon is separated from the cavity through the piston plate, the piston plate is arranged in a lifting mode along the pontoon in an axial direction, the height position of the piston plate is adjusted, the water storage quantity inside the pontoon is changed, the total weight of the water storage pontoon is changed, and the water level triggering condition of automatic water supplementing is adjusted. For example, when the automatic water replenishment is triggered at a higher water level, the height of the piston plate can be adjusted to increase the storable water quantity in the pontoon, and when the automatic water replenishment is triggered at a lower water level, the height of the piston plate can be adjusted to decrease the storable water quantity in the pontoon.

The device needs regular maintenance and maintenance, ensures the normal operating of automatic water replenishing system, so be provided with the observation tube 9 in the one end that the water tank body was kept away from in the moisturizing pipe the transparent glass pipe of vertical setting is adopted to the observation tube, the upper and lower end of observation tube communicates with the water tank body is inside through fixed pipe 91 respectively, forms annular intercommunication space, and then can audio-visual water level condition in the water tank be observed from the water level in the glass pipe to judge whether the automatic water replenishing system in the water tank normally works. The bottom of the water tank body is provided with a plurality of connecting pipes 11 with electric control valves for externally connecting cooling water circulation pipelines, so as to realize the cooling effect on the generator.

The foregoing is merely a preferred embodiment of the present utility model and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present utility model, which are intended to be comprehended within the scope of the present utility model as defined by the claims.

Claims (6)

1. A cooling water supplementing device of a generator is characterized by comprising a water tank body (1), wherein the water tank body (1) is connected with a cooling water circulating pipeline, the water tank body (1) is connected with an electric control supplementing valve (3) through a supplementing water pipe (2), a control signal receiving end of the electric control supplementing valve (3) is electrically connected with an electric signal output end of a voltage-controlled switch (4), a buoyancy sensing device (5) is arranged in the water tank body (1), the buoyancy sensing device (5) is used for controlling a driving movable pressure rod (6) to move up and down along with the up-and-down floating of a water level, and the voltage-controlled switch (4) is located below the movable pressure rod (6).

2. The cooling water supplementing device for the generator is characterized in that a mounting hole is formed in the bottom of the water tank body (1), a sealing ring (7) is fixedly arranged in the mounting hole, the movable pressing rod (6) is sleeved in the sealing ring (7), the upper end of the movable pressing rod (6) is connected with the buoyancy sensing device (5), a connecting frame (8) is arranged on the outer wall surface of the water tank body (1) corresponding to the position of the mounting hole, and the pressure-controlled switch (4) is arranged on the connecting frame (8).

3. The cooling water supplementing device for the generator is characterized in that the buoyancy sensing device (5) is provided with a pontoon (51), the pontoon (51) is fixedly connected to the top end of the movable compression bar (6), the top end of the pontoon (51) is fixedly connected with a floating block (52), and the top end of the floating block (52) is provided with a water filling port (53).

4. The cooling water replenishing device for the generator according to claim 3, wherein the lower end of the movable compression bar (6) is connected with a limiting ring (61).

5. The cooling water replenishing device for the generator is characterized in that an installation plane of the pressure-controlled switch (4) is arranged on the connecting frame (8) and is parallel to the lower end face of the limiting ring (61), and the installation plane is connected with the lower end face of the limiting ring (61) through an elastic piece (62).

6. The cooling water replenishing device for the generator of claim 5, wherein a cavity is formed in the wall of the pontoon (51).