CN215410353U - Stable switching device for normal-temperature water pump - Google Patents

Abstract

The utility model discloses a stable switching device for a normal-temperature water pump, which comprises a conversion valve body, a first water inlet pipe, a second water inlet pipe, a flange plate, a protective cover, a servo motor, a fixed seat and a shaft sleeve, wherein a ball valve body is rotatably arranged in the conversion valve body, the first water inlet pipe and the second water inlet pipe are symmetrically arranged on the outer walls of two sides of the conversion valve body, a drain pipe which is orthogonally distributed with the first water inlet pipe and the second water inlet pipe is arranged on the surface of one side of the conversion valve body, the shaft sleeve is arranged on the upper surface of the conversion valve body, the fixed seat is welded at the upper end of the shaft sleeve, the servo motor is arranged on the upper surface of the fixed seat, a transmission shaft penetrating through the shaft sleeve is arranged at the lower end of the servo motor, and a transmission hole is formed in the ball valve body. According to the utility model, the transmission hole is formed in the ball valve body, and the servo motor drives the ball valve body to rotate, so that the conduction switching of the first water inlet pipe and the second water inlet pipe can be flexibly realized, the manual operation of a worker is not required, and the ball valve is safer and more convenient.

Description

Stable switching device for normal-temperature water pump

Technical Field

The utility model relates to the technical field of water pump switching, in particular to a stable switching device for a normal-temperature water pump.

Background

The normal temperature water pump can cause air cooling tower liquid level to reduce after the jump car, and the air temperature that goes out the tower risees, and the water content risees, and main molecular sieve can appear to pierce through under the extreme condition and cause the safety risk. In order to prevent the problems, the air cooling tower is generally provided with two normal-temperature water pumps, one of the normal-temperature water pumps is used as a standby water pump, and after the normal-temperature water pump jumps, the standby normal-temperature water pump is started to ensure the normal use of the air cooling tower.

And in the actual operation in-process, the process of jumping of normal temperature water pump is short, and the staff can't notice fast, can only notice the reduction of water yield in the air cooling tower, consequently, the staff needs the certain time to notice the normal temperature water pump and takes place the trouble of jumping, and the in-process still needs the certain time to start reserve water pump once more, and in this time quantum, the water supply of air cooling tower can not be ensured, makes the liquid level reduce in the air cooling tower, and the air temperature who goes out the tower risees, produces the penetrating risk of main molecular sieve easily.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a stable switching device for a normal temperature water pump, so as to solve the problems mentioned in the background art.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a stable form auto-change over device for normal temperature water pump, includes crossover valve body, first inlet tube, second inlet tube, ring flange, protection casing, servo motor, fixing base and axle sleeve, the ball valve body is installed to crossover valve body internal rotation, crossover valve body both sides outer wall symmetry is provided with first inlet tube and second inlet tube, crossover valve body side surface is provided with the drain pipe that is the quadrature and distributes with first inlet tube and second inlet tube, the crossover valve body upper surface is provided with the axle sleeve, the welding of axle sleeve upper end has the fixing base, the fixing base upper surface is provided with servo motor, the servo motor lower extreme is provided with the transmission shaft that runs through the axle sleeve, the transmission shaft lower extreme is connected with ball valve body upper surface, the inside transmission hole that is the right angle and distributes of offering of ball valve body.

Preferably, drain pipe, first inlet tube and second inlet tube deviate from conversion valve body one end outer wall and all are provided with the ring flange, the through-hole that is circular array and distributes is all seted up on the ring flange surface.

Preferably, the outer wall of the servo motor is sleeved with a protective cover, and a wire arranging seat is embedded in the outer wall of one side of the protective cover.

Preferably, a positioning block is connected between the lower surface of the servo motor and the upper surface of the fixing seat.

Preferably, a sealing bearing is embedded in the upper end of the shaft sleeve.

Preferably, a sealing gasket is sleeved at the joint of the lower end of the transmission shaft and the ball valve body.

Compared with the prior art, the utility model has the beneficial effects that: according to the utility model, the first water inlet pipe and the second water inlet pipe are respectively corresponding to the normal-temperature water pump and the standby water pump, when the normal-temperature water pump has a vehicle jumping fault, the servo motor drives the ball valve body to rotate, and the drain pipe is communicated with the second water inlet pipe, so that the effect that the standby water pump supplies water to the air cooling tower is realized, the operation efficiency is improved, the time for workers to reach the site operation is reduced, the potential safety hazard is reduced, and the safety production is ensured.

Drawings

FIG. 1 is a schematic top cross-sectional view of the present invention;

FIG. 2 is a main sectional structural view of the present invention;

FIG. 3 is an enlarged view of the structure A in FIG. 2 according to the present invention

In the figure: 1. a drain pipe; 2. switching the valve body; 3. a first water inlet pipe; 4. a transfer aperture; 5. a drive shaft; 6. a ball valve body; 7. a second water inlet pipe; 8. a flange plate; 9. a through hole; 10. a protective cover; 11. a servo motor; 12. a fixed seat; 13. positioning blocks; 14. a wire arranging seat; 15. a shaft sleeve; 16. a gasket; 17. and sealing the bearing.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 3, an embodiment of the present invention includes: a stable switching device for a normal temperature water pump comprises a conversion valve body 2, a first water inlet pipe 3, a second water inlet pipe 7, a flange 8, a protective cover 10, a servo motor 11, a fixed seat 12 and a shaft sleeve 15, wherein a ball valve body 6 is rotatably installed inside the conversion valve body 2, a transmission hole 4 which is distributed in a right angle is formed inside the ball valve body 6, the first water inlet pipe 3 and the second water inlet pipe 7 are symmetrically arranged on the outer wall of the two sides of the conversion valve body 2, a drain pipe 1 which is distributed orthogonally to the first water inlet pipe 3 and the second water inlet pipe 7 is arranged on the surface of one side of the conversion valve body 2, the flange 8 is arranged on the outer wall of one end of the first water inlet pipe 3 and the second water inlet pipe 7 which deviates from the conversion valve body 2, through holes 9 which are distributed in a circular array are formed on the surface of the flange 8, the first water inlet pipe 3 and the second water inlet pipe 7 respectively correspond to the normal temperature water pump and a standby water pump, and the normal temperature water pump are both connected with a detector and a controller, the detector is used for detecting the operating condition of normal temperature water pump and standby water pump, and when normal temperature water pump and standby water pump took place to jump the car, detector transmissible signal to controller, and the controller is with signal transmission to servo motor 11 for servo motor 11 drives the rotation of ball valve body 6, and the controller is based on DCS control system, reaches the automatic switch-over between normal temperature water pump and the standby water pump, need not that the staff is manual to switch over.

The upper surface of the conversion valve body 2 is provided with a shaft sleeve 15, the upper end of the shaft sleeve 15 is welded with a fixed seat 12, the upper surface of the fixed seat 12 is provided with a servo motor 11, a positioning block 13 is connected between the lower surface of the servo motor 11 and the upper surface of the fixed seat 12, the outer wall of the servo motor 11 is sleeved with a protective cover 10, a wire arranging seat 14 is installed in the outer wall of one side of the protective cover 10 in an embedded mode, and a connecting wire of the controller can penetrate through the wire arranging seat 14 to be connected with the servo motor 11.

11 lower extreme of servo motor is provided with transmission shaft 5 that runs through axle sleeve 15, 5 lower extremes of transmission shaft are connected with 6 upper surfaces of ball valve body, the inside embedding in axle sleeve 15 upper end installs sealed bearing 17, 5 lower extremes of transmission shaft and the 6 junction of ball valve body have cup jointed sealed 16, sealed bearing 17 can ensure transmission shaft 5's smooth degree of rotation, reduce mechanical wear, sealed bearing 17 cooperation is sealed 16 simultaneously and can effectively improve the leakproofness between axle sleeve 15 and the transmission shaft 5, avoid producing and leak.

The working principle is as follows: the utility model is provided with the first water inlet pipe 3 and the second water inlet pipe 7 which respectively correspond to the normal temperature water pump and the standby water pump, the normal temperature water pump and the standby water pump are both connected with a detector and a controller, the detector is used for detecting the working state of the normal temperature water pump and the standby water pump, when the normal temperature water pump and the standby water pump jump, the detector can transmit signals to the controller, the controller transmits the signals to the servo motor 11, so that the servo motor 11 drives the ball valve body 6 to rotate, the controller achieves automatic switching between the normal temperature water pump and the standby water pump based on a DCS control system, manual switching by workers is not needed, the drain pipe 1 is communicated with the second water inlet pipe 7, therefore, the effect that the standby water pump supplies water to the air cooling tower is achieved, the operation efficiency is improved, the time for workers to reach the field operation is shortened, the potential safety hazard is reduced, and the safety production is ensured.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (6)

1. The utility model provides a stable form auto-change over device for normal temperature water pump, includes conversion valve body (2), first inlet tube (3), second inlet tube (7), ring flange (8), protection casing (10), servo motor (11), fixing base (12) and axle sleeve (15), its characterized in that: conversion valve body (2) inside rotation installs ball valve body (6), conversion valve body (2) both sides outer wall symmetry is provided with first inlet tube (3) and second inlet tube (7), conversion valve body (2) side surface is provided with drain pipe (1) that is the quadrature and distributes with first inlet tube (3) and second inlet tube (7), conversion valve body (2) upper surface is provided with axle sleeve (15), axle sleeve (15) upper end welding has fixing base (12), fixing base (12) upper surface is provided with servo motor (11), servo motor (11) lower extreme is provided with transmission shaft (5) that run through axle sleeve (15), transmission shaft (5) lower extreme is connected with ball valve body (6) upper surface, ball valve body (6) inside has been seted up and has been right angle transmission hole (4) that distribute.

2. A stable switching device for a normal temperature water pump according to claim 1, wherein: drain pipe (1), first inlet tube (3) and second inlet tube (7) deviate from conversion valve body (2) one end outer wall and all are provided with ring flange (8), through-hole (9) that are circular array and distribute are all seted up on ring flange (8) surface.

3. A stable switching device for a normal temperature water pump according to claim 1, wherein: the outer wall of the servo motor (11) is sleeved with the protective cover (10), and the outer wall of one side of the protective cover (10) is embedded with the wire arranging seat (14).

4. A stable switching device for a normal temperature water pump according to claim 1, wherein: and a positioning block (13) is connected between the lower surface of the servo motor (11) and the upper surface of the fixed seat (12).

5. A stable switching device for a normal temperature water pump according to claim 1, wherein: and a sealing bearing (17) is embedded in the upper end of the shaft sleeve (15).

6. A stable switching device for a normal temperature water pump according to claim 1, wherein: and a sealing gasket (16) is sleeved at the joint of the lower end of the transmission shaft (5) and the ball valve body (6).

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