CN216562077U

CN216562077U - Water leakage alarm for closed magnetic suspension motor

Info

Publication number: CN216562077U
Application number: CN202122863283.0U
Authority: CN
Inventors: 余知义; 刘兰莎; 吴立华; 董继勇
Original assignee: Nanjing Cigu Technology Co Ltd
Current assignee: Nanjing Cigu Technology Co Ltd
Priority date: 2021-11-22
Filing date: 2021-11-22
Publication date: 2022-05-17
Anticipated expiration: 2031-11-22

Abstract

The utility model discloses a water leakage alarm for a closed magnetic suspension motor, which comprises a water-cooling heat exchange fan cover for cooling and heat exchange of the magnetic suspension motor, wherein the water leakage alarm is arranged at the bottom of the water-cooling heat exchange fan cover and comprises a barrel, a barrel cover and a liquid level switch; the utility model solves the problem of water leakage prevention of the closed magnetic suspension motor in a water cooling mode; and the water leakage alarm has certain redundancy capability, and when the water leakage level is lower than the lowest water level of the liquid level switch, the cooling system can still normally operate.

Description

Water leakage alarm for closed magnetic suspension motor

Technical Field

The utility model relates to the technical field of cooling of closed magnetic suspension motors, in particular to a water leakage alarm for a closed magnetic suspension motor.

Background

The existing closed magnetic suspension motor cooling system adopts water cooling or air cooling, the water cooling mode has the potential risk of water leakage and infiltration to the motor, the existing mode is that a baffle is additionally arranged in the interior, the water leakage is prevented from entering the motor, but the inner circulation cooling system can stably run under the condition that a heat exchanger connecting pipeline does not leak water, when the connecting pipeline leaks water, the water at the bottom of the water-cooling air heat exchange air cover can gradually rise, when the water level exceeds the highest position of the waterproof baffle, the water can enter the magnetic suspension closed motor, and therefore the motor is seriously damaged.

SUMMERY OF THE UTILITY MODEL

The technical purpose is as follows: the utility model discloses a water leakage alarm for a closed magnetic suspension motor, which solves the problem of water leakage prevention of the closed magnetic suspension motor in a water cooling mode, has certain water leakage redundancy capability and can maintain the operation of the motor in a short time under the condition of water leakage, and aims to overcome the defects that the existing closed magnetic suspension motor is lack of water leakage protection and alarm functions and the motor is damaged by water leakage.

The technical scheme is as follows: in order to achieve the technical purpose, the utility model adopts the following technical scheme:

the utility model provides an alarm that leaks for closed magnetic suspension motor, is including the water-cooling heat transfer fan housing that is used for magnetic suspension fan cooling heat transfer, sets up the alarm that leaks in water-cooling heat transfer fan housing bottom, and the alarm that leaks includes barrel, cover and liquid level switch sets up the inlet tube that is used for with water-cooling heat transfer fan housing intercommunication on the cover, and liquid level switch upper portion is fixed on the cover, and the lower part is located the barrel, leaves the buffer height that leaks between the bottom of liquid level switch and the bottom of barrel.

Preferably, the bottom of the cylinder body is provided with a liquid discharge hole, and a stainless steel plug for plugging is screwed on the liquid discharge hole.

Preferably, the water-cooling heat exchange fan housing comprises a housing, wherein an air inlet and an air outlet are formed in the housing, the housing forms a circulation loop with the magnetic suspension motor through the air inlet and the air outlet, a fin heat exchanger for exchanging heat between water and air is arranged in the housing, a cooling water inlet pipe and a cooling water outlet pipe are respectively arranged at two ends of the fin heat exchanger, the end parts of the cooling water inlet pipe and the cooling water outlet pipe extend out of the housing and are communicated with an external pipeline, and the water leakage alarm is arranged at one side of the cooling water outlet pipe.

Preferably, the bottom of the housing is provided with a waterproof baffle plate for preventing water from entering the motor at the outer sides of the air inlet and the air outlet, and the water leakage alarm is fixed at the outer side of a protection area surrounded by the waterproof baffle plate.

Has the advantages that: the water leakage alarm for the closed magnetic suspension motor provided by the utility model has the following beneficial effects:

1. when water leaks from the pipeline in the water-cooling heat exchange fan cover, the water leakage can be timely guided into the cylinder body, an alarm is given, the water leakage is timely treated, and damage to the motor is avoided.

2. The water leakage buffer height is reserved between the lower part of the liquid level switch and the bottom of the barrel, the motor can be kept running when the liquid level does not reach the lowest liquid level of the liquid level switch, the stainless steel plug is arranged at the bottom of the barrel, water can be drained in time after the plug is unscrewed, the running state of the motor is kept for a short time, and the motor is maintained after being used.

3. The water leakage alarm is arranged outside the closed area formed by the waterproof baffle, when water leakage is serious, the waterproof baffle is used as a second water leakage prevention measure, and when the water leakage alarm gives an alarm, the phenomenon that the motor is damaged because the cylinder is filled with water and then overflows into the motor is avoided.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.

FIG. 1 is an overall structural view of the present invention;

FIG. 2 is an internal structure view of the water leakage alarm of the present invention;

the device comprises a water-cooling heat exchange fan cover 1, a water leakage alarm 2, a cylinder 3, a cylinder cover 4, a liquid level switch 5, a water inlet pipe 6, a stainless steel plug 7, a housing 8, a fin heat exchanger 9, a cooling water inlet pipe 10, a cooling water outlet pipe 11 and a waterproof baffle 12.

Detailed Description

The present invention will be more clearly and completely described below by way of a preferred embodiment in conjunction with the accompanying drawings, without thereby limiting the scope of the utility model to the described embodiment.

As shown in fig. 1 and 2, the water leakage alarm for the closed magnetic suspension motor disclosed by the utility model comprises a water-cooling heat exchange fan housing 1 for cooling and heat exchange of the magnetic suspension motor, wherein the water leakage alarm 2 is arranged at the bottom of the water-cooling heat exchange fan housing 1, the water leakage alarm 2 comprises a cylinder body 3, a cylinder cover 4 and a liquid level switch 5, a water inlet pipe 6 communicated with the water-cooling heat exchange fan housing 1 is arranged on the cylinder cover 4, the upper part of the liquid level switch 5 is fixed on the cylinder cover 4, the lower part of the liquid level switch is positioned in the cylinder body 3, and a water leakage buffer height is reserved between the bottom of the liquid level switch 5 and the bottom of the cylinder body 3.

When the liquid level that leaks has not reached liquid level switch 5's position yet, the motor can continue the operation, when the water level progressively rises and reaches the warning liquid level, leak water alarm 2 reports to the police, reminds personnel in time to maintain the department that leaks, and when the water leakage is less, when little to the operation influence of motor, owing to be equipped with the buffer height that leaks, need not shut down at once and carry out maintenance processing, avoid delaying the job schedule.

In some special situations, the machine cannot be stopped in time for maintenance, the working state needs to be kept for a certain time so as to respond, although the water leakage buffering height is arranged in the water leakage sensor 2, the continuous operation of the motor cannot be kept, otherwise, water still enters the motor along with the increase of the water leakage amount, therefore, the bottom of the barrel body 3 is provided with a liquid discharge hole, a stainless steel plug 7 for plugging is screwed on the liquid discharge hole, when the operation needs to be kept, the stainless steel plug 7 can be opened for discharging liquid, the operation of the motor is kept, the temporary emergency operation requirement is met, and the influence of sudden stop on the production or operation progress is avoided.

The water-cooling heat exchange fan cover 1 comprises a housing 8, an air inlet and an air outlet are arranged on the housing 8, the housing 8 forms a circulation loop with a magnetic suspension motor through the air inlet and the air outlet, a finned heat exchanger 9 for exchanging heat between water and wind is arranged in the housing 8, a cooling water inlet pipe 10 and a cooling water outlet pipe 11 are respectively arranged at two ends of the finned heat exchanger 9, the end parts of the cooling water inlet pipe 10 and the cooling water outlet pipe 11 extend out of the housing 8 and are communicated with an external pipeline, the water leakage alarm 2 is arranged at one side of the cooling water outlet pipe 11, because positive pressure exists at the air inlet of the cover shell and negative pressure exists at the joint of the air outlet and the motor, therefore, water leakage can more easily enter the motor from the air outlet of the housing, and the water leakage alarm 2 is arranged on the cooling water outlet pipe 11, namely the side where the air outlet is located, so that water leakage can be timely treated.

Under the condition of large water leakage, the buffering requirement on water leakage cannot be met only by the buffering height of the water leakage alarm 2, in order to reserve enough reaction time and avoid damage to the motor, a waterproof baffle 12 for preventing water from entering the motor is arranged at the outer side of an air inlet and an air outlet at the bottom of the housing 8, the water leakage alarm 2 is fixed at the outer side of a closed area defined by the waterproof baffle 12, and the waterproof baffle 12 is used as a second water leakage prevention line to play a role in preventing water from entering the motor when the water leakage is large, so that the use safety of the whole equipment is improved.

When the water leakage alarm for the closed magnetic suspension motor is used, when the closed magnetic suspension motor runs, cooling water or cooling liquid entering from a cooling water inlet pipe 10 of a heat exchange fan cover passes through a water-cooling air heat exchange cover 2 to enter a fin heat exchanger 9, then flows out from a cooling water outlet pipe on the other side of the water-cooling air heat exchange fan cover 2 to enter a peripheral cooling system, the left side of a coil pipe cooling water-cooling air heat exchange cover 1 of the fin heat exchanger 9 is used for cooling hot air discharged by one end of the magnetic suspension closed motor, the cold air after heat exchange is sucked from an air outlet by a cooling fan on the other end of the magnetic suspension closed motor, as shown by an arrow in figure 1, the internal circulation cooling system can stably run under the condition that a connecting pipeline of the heat exchanger is not leaked with water, when the water leakage alarm 1 is installed on the lower part of the water-cooling air heat exchange fan cover 2, when the bottom liquid level of waterproof baffle 22 rose, water got into in the barrel 3 through inlet tube 6 on the cover 4, the water level in the barrel 3 rose gradually, when the liquid level was close liquid level switch 5, trigger liquid level switch 5 output signal to electrical system, suggestion water-cooling wind trades hot wind cover 1 and takes place high-order water leakage alarm information, stainless steel end cap 7 of water leakage alarm barrel 12 is the confined under normal operating condition, after triggering 1 suggestion alarm information of water leakage alarm, can open stainless steel end cap 13, let the water in the barrel 3 discharge through the below, the liquid level of barrel 3 was less than the warning of liquid level switch 5 and triggers the liquid level this moment, electrical system's 2 alarm information of water leakage alarm disappear, water leakage alarm 2 resumes normal operating condition again.

The above description is only of the preferred embodiments of the present invention, and it should be noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the utility model and these are intended to be within the scope of the utility model.

Claims

1. The utility model provides an alarm that leaks for closed magnetic suspension motor, a serial communication port, including water-cooling heat transfer fan housing (1) that is used for magnetic suspension motor cooling heat transfer, set up leak water alarm (2) bottom water-cooling heat transfer fan housing (1), leak water alarm (2) include barrel (3), cover (4) and liquid level switch (5), set up inlet tube (6) that are used for with water-cooling heat transfer fan housing (1) intercommunication on cover (4), liquid level switch (5) upper portion is fixed on cover (4), the lower part is located barrel (3), it leaks the buffer height to leave between the bottom of liquid level switch (5) and the bottom of barrel (3).

2. The water leakage alarm for the closed magnetic suspension motor as claimed in claim 1, wherein a drain hole is formed at the bottom of the cylinder (3), and a stainless steel plug (7) for plugging is screwed on the drain hole.

3. The water leakage alarm for the closed magnetic suspension motor according to claim 1, wherein the water-cooling heat exchange fan housing (1) comprises a housing (8), an air inlet and an air outlet are formed in the housing (8), the housing (8) forms a circulation loop with the magnetic suspension motor through the air inlet and the air outlet, a fin heat exchanger (9) for exchanging heat between water and air is arranged in the housing (8), a cooling water inlet pipe (10) and a cooling water outlet pipe (11) are respectively arranged at two ends of the fin heat exchanger (9), the ends of the cooling water inlet pipe (10) and the cooling water outlet pipe (11) extend out of the housing (8) and are communicated with an external pipeline, and the water leakage alarm (2) is arranged on one side of the cooling water outlet pipe (11).

4. The water leakage alarm for the closed magnetic suspension motor as claimed in claim 3, wherein a waterproof baffle (12) for preventing water from entering the motor is arranged at the bottom of the housing (8) at the outer side of the air inlet and the air outlet, and the water leakage alarm (2) is fixed at the outer side of a protection area surrounded by the waterproof baffle (12).