Mechanical seal water pump alarm device

Abstract

The utility model discloses a mechanical seal water pump alarm device, which relates to the technical field of electrical equipment, and comprises a device box, an alarm, a switching knob, an alternating current contactor, an intermediate relay and a fixed guide rail, the device box is provided with a box door and an inner box body, an alarm and a switching knob are arranged on the outer side of the box door, a fixed guide rail is arranged outside the inner box body, and the alternating current contactor and the intermediate relay are fixed outside the inner box body through the fixed guide rail in a buckling mode. Through modular design and reasonable layout, simple and convenient installation and maintenance of equipment, high-stability protection of the mechanical seal water pump and real-time monitoring and abnormity alarm functions are achieved, and therefore the reliability and safety of the equipment are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electrical equipment, more particularly, the present application relates to a machine seal water pump alarm device. BACKGROUND

[0002] With the continuous improvement of industrial automation, machine seal water pumps are widely used in various production equipment, especially in high-demand fields such as chemical industry, pharmaceutical industry, metallurgy, etc. As an important mechanical sealing device, the machine seal water pump undertakes the key task of preventing liquid leakage, cooling and lubrication; however, during long-time and high-load operation, the machine seal water pump is prone to abnormal shutdown of the motor due to overload, short circuit, power supply abnormalities, etc. Once a problem occurs, if it cannot be discovered and handled in time, it will directly lead to production interruption, and even cause greater equipment safety accidents.

[0003] In related technologies, the existing control system mostly only stays at this automatic power-off protection level, and the discovery of machine seal water pump motor shutdown failure mainly relies on regular inspection by operating personnel or simple indicator light display, but these methods lack active and mandatory alarm prompts, which are easy to be ignored, thereby delaying fault handling and causing unnecessary production loss. That is, the prior art lacks a special device with simple structure, rapid response, and capable of immediately issuing an alarm when the water pump motor abnormally stops, so as to realize real-time and effective monitoring of the key state of the equipment. CONTENT OF THE PRESENT INVENTION

[0004] In the utility model content part of the present application, a series of simplified concepts are introduced, which will be further described in detail in the specific embodiment part. The utility model content part of the present application does not mean to try to limit the key features and necessary technical features of the claimed technical solution, and even less means to try to determine the protection scope of the claimed technical solution.

[0005] The machine seal water pump alarm device provided by the present application can realize simple installation and maintenance of the equipment, high stability protection of the machine seal water pump, and real-time monitoring and abnormal alarm functions through modular design and reasonable layout, thereby improving the reliability and safety of the equipment.

[0006] The present application provides a machine seal water pump alarm device, which comprises a device box, an alarm, a switching knob, an AC contactor, an intermediate relay and a fixed guide rail; the device box is provided with a box door and an inner box body, the outer side of the box door is provided with the alarm and the switching knob, the outer part of the inner box body is provided with the fixed guide rail, and the AC contactor and the intermediate relay are fixed on the outer part of the inner box body in a buckle manner through the fixed guide rail.

[0007] In an implementable embodiment, the normally open contact of the AC contactor is electrically connected with the input end of the intermediate relay.

[0008] In an implementable embodiment, the output end of the intermediate relay is electrically connected with the alarm.

[0009] In an implementable embodiment, the normally closed contact of the AC contactor is electrically connected with the input end of the mechanical seal water pump.

[0010] In an implementable embodiment, the switching knob is a multi-gear rotary structure and is arranged on the front surface of the box door, and the switching knob is electrically connected with the intermediate relay through wires.

[0011] In an implementable embodiment, the alarm is provided with a light-transmitting cover, a high-brightness LED lamp and a buzzer, and the light-transmitting cover is made of red polycarbonate.

[0012] In an implementable embodiment, the bottom of the inner box body is provided with a drain hole, and the drain hole is provided with a raised edge annular edge.

[0013] In an implementable embodiment, the box door is provided with a transparent window, the transparent window is made of tempered glass material, and the transparent window is combined with the box body through a waterproof sealing ring.

[0014] In an implementable embodiment, the outer surface of the device box is coated with a high-temperature-resistant anticorrosive coating.

[0015] In an implementable embodiment, the fixed guide rail is fixed on the outer surface of the inner box body through bolts.

[0016] In summary, the application simplifies the installation and disassembly process of the equipment by arranging the fixed guide rail outside the inner box body and fixing the AC contactor and the intermediate relay by the buckle method, so that the maintenance and replacement of components are more convenient and fast; the device box is designed to have a box door and an inner box body structure, which ensures the stability and protection of the AC contactor and the intermediate relay on the inner box body, reduces the influence of the external environment on the AC contactor and the intermediate relay, and improves the reliability of the entire device; the linkage of the alarm and the intermediate relay can realize real-time monitoring and abnormal alarm of the mechanical seal water pump running state, timely warning of potential faults, and safe operation of the equipment. In summary, the mechanical seal water pump alarm device provided by the application realizes simple installation and maintenance of the equipment, high stability protection of the mechanical seal water pump, and real-time monitoring and abnormal alarm functions, thereby improving the reliability and safety of the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0017] Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The accompanying drawings are included to provide a better understanding of the preferred embodiments, and are not intended to be limiting of the scope of the description. Moreover, in the drawings, like reference numerals refer to similar components, and:

[0018] Fig. 1 A structure schematic diagram of a machine seal water pump alarm device provided by an embodiment of the present application is shown in the figure.

[0019] Fig. 2 Another structure schematic diagram of a machine seal water pump alarm device provided by an embodiment of the present application is shown in the figure.

[0020] In the figure, 10 is a machine seal water pump alarm device, 101 is a device box, 1011 is a box door, 1012 is an inner box body, 102 is an alarm, 103 is a switching knob, 104 is a fixed guide rail, 105 is an intermediate relay, and 106 is an alternating current contactor. DETAILED DESCRIPTION

[0021] The technical solutions in the present application will be described in detail below with reference to the accompanying drawings in the embodiments. It should be noted that the described embodiments are only a part of the present application, rather than all the embodiments. In the following description, "some embodiments" mentioned are only a subset of all possible embodiments, which can be the same or different subsets, and different embodiments can be combined with each other without conflict.

[0022] Reference is made to Figs. 1-2 , Figs. 1-2 A structure schematic diagram of a machine seal water pump alarm device 10 provided by an embodiment of the present application is shown in the figure, which includes a device box 101, an alarm 102, a switching knob 103, an alternating current contactor 106, an intermediate relay 105, and the switching knob 103. The device box 101 is provided with a box door 1011 and an inner box body 1012. The alarm 102 and the switching knob 103 are arranged on the outside of the box door 1011. The outer part of the inner box body 1012 is provided with a fixed guide rail 104. The alternating current contactor 106 and the intermediate relay 105 are fixed on the outer part of the inner box body 1012 in a buckle manner through the fixed guide rail 104.

[0023] Specifically, the monitoring and alarm functions for the mechanical seal water pump motor are achieved through the linkage of AC contactor 106 and intermediate relay 105. When AC contactor 106 is energized, its normally open contact is open, and the intermediate relay 105 connected to it is in the open state, indicating that the mechanical seal water pump motor is operating normally. When AC contactor 106 is de-energized, its normally open contact is energized, and the intermediate relay 105 connected to it is energized. At this time, the audible and visual alarm 102 is activated, emitting an audible and visual alarm to remind production operators to handle the fault in a timely manner. AC contactor 106 can be an NXB-63 C6 air switch, and intermediate relay 105 can be an NY4N intermediate relay.

[0024] In summary, this embodiment simplifies the installation and disassembly process by setting a fixed guide rail 104 on the outside of the inner housing 1012 and using a snap-fit ​​method to fix the AC contactor 106 and intermediate relay 105, making maintenance and component replacement more convenient and faster. Designing the device housing 101 with a door 1011 and an inner housing 1012 reduces the impact of the external environment on the AC contactor 106 and intermediate relay 105, thereby improving the overall reliability of the device. The linkage between the alarm 102 and the intermediate relay 105 enables real-time monitoring and alarm of the mechanical seal water pump's operating status, providing timely warnings of potential faults and ensuring safe equipment operation. In conclusion, the mechanical seal water pump alarm device 10 provided in this embodiment, through modular design and reasonable layout, achieves easy installation and maintenance, high stability protection for the mechanical seal water pump, and real-time monitoring and alarm functions, thereby improving the reliability and safety of the equipment.

[0025] In some embodiments, the normally open contact of the AC contactor 106 is electrically connected to the input terminal of the intermediate relay 105.

[0026] By implementing the above embodiments, when the mechanical seal water pump motor fails or stops, the state of the contacts can be automatically changed to transmit current to the control terminal of the intermediate relay 105, thereby activating the alarm 102. This enables timely response when the mechanical seal water pump fails, quickly triggering the alarm signal and helping operators to take quick action.

[0027] In some embodiments, the output terminal of the intermediate relay 105 is electrically connected to the alarm 102.

[0028] Specifically, the output signal of the intermediate relay 105 directly drives the alarm 102 to operate, including the flashing of the bright LED light and the sounding of the buzzer, to ensure that the alarm signal is obvious.

[0029] In some embodiments, the normally closed contact of the AC contactor 106 is electrically connected to the input terminal of the mechanical seal water pump.

[0030] Specifically, when the mechanical seal water pump is running normally, the AC contactor 106 is engaged and the normally closed contact is disengaged, thereby cutting off the current supply to the input terminal of the mechanical seal water pump and ensuring that the mechanical seal water pump can be quickly detected when the motor stops or malfunctions.

[0031] In some embodiments, the switching knob 103 is a multi-position rotary structure and is located on the front of the door 1011. The switching knob 103 is electrically connected to the intermediate relay 105 via a wire.

[0032] Specifically, a multi-position rotary structure can be achieved through a mechanical rotary switch with multiple fixed positions. The switching knob 103 can be equipped with an indicator arrow mark to indicate the different mechanical seal water pump markings on the box door 1011 for selecting the mechanical seal water pump, making it convenient for operators to adjust the device function according to on-site needs.

[0033] In some embodiments, the alarm 102 is provided with a light-transmitting cover, a high-brightness LED light and a buzzer, and the light-transmitting cover is made of red polycarbonate.

[0034] Specifically, the red polycarbonate light-transmitting cover effectively improves the visibility of the alarm light, making it clearly visible even in bright light conditions; the buzzer provides a high-decibel sound alarm, adapting to noisy working environments.

[0035] In some embodiments, the bottom of the inner housing 1012 is provided with a drain hole, and the drain hole has an annular edge with a raised edge.

[0036] Specifically, the design of the drain hole ensures rapid drainage in humid or condensation-prone environments, preventing internal water accumulation and damage to the equipment; the annular edge prevents external liquids from flowing back, improving the equipment's sealing performance.

[0037] In some embodiments, the door 1011 is provided with a transparent window, which is made of tempered glass and is connected to the box body by a waterproof sealing ring.

[0038] Specifically, the transparent window allows operators to observe the working status of the components inside the enclosure, while the combination of tempered glass and waterproof sealing rings provides excellent impact resistance and waterproof performance, making it suitable for harsh environments.

[0039] In some embodiments, the outer surface of the device housing 101 is coated with a high-temperature resistant and corrosion-resistant coating.

[0040] Specifically, the coating improves the heat resistance and chemical corrosion resistance of the device box 101, making it suitable for long-term use in high-temperature, high-humidity, or corrosive environments. The high-temperature corrosion resistant coating can be a silicone resin coating, a ceramic coating, or an inorganic zinc coating, etc.

[0041] In some embodiments, the fixed guide rail 104 is fixed to the outer surface of the inner housing 1012 by bolts.

[0042] The fixed guide rail 104 adopts a standardized installation design and is firmly fixed to the outer surface of the inner housing 1012 with bolts. This not only facilitates the quick installation and disassembly of components such as AC contactor 106 and intermediate relay 105, but also ensures the stability of the components under vibration or impact environments.

[0043] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. An alarm device for a mechanically sealed water pump, characterized in that, The mechanical seal water pump alarm device includes a device box, an alarm, a switching knob, an AC contactor, an intermediate relay, and a fixed guide rail; The device box is equipped with a door and an inner box. The alarm and the switching knob are installed on the outside of the door. The fixed guide rail is installed on the outside of the inner box. The AC contactor and the intermediate relay are fixed to the outside of the inner box by snap-fit ​​through the fixed guide rail. The normally open contact of the AC contactor is electrically connected to the input terminal of the intermediate relay, the output terminal of the intermediate relay is electrically connected to the alarm, and the normally closed contact of the AC contactor is electrically connected to the input terminal of the mechanical seal water pump.

2. The alarm device for mechanically sealed water pumps according to claim 1, characterized in that, The switching knob is a multi-position rotary structure and is located on the front of the cabinet door. The switching knob is electrically connected to an intermediate relay via a wire.

3. The alarm device for a mechanically sealed water pump according to claim 2, characterized in that, The alarm is equipped with a light-transmitting cover, a high-brightness LED light, and a buzzer. The light-transmitting cover is made of red polycarbonate.

4. The alarm device for a mechanically sealed water pump according to claim 3, characterized in that, The bottom of the inner box is provided with a drainage hole, and the drainage hole has a raised annular edge.

5. The alarm device for a mechanically sealed water pump according to claim 4, characterized in that, The door of the box is equipped with a transparent window made of tempered glass, which is connected to the box body by a waterproof sealing ring.

6. The alarm device for a mechanically sealed water pump according to claim 5, characterized in that, The outer surface of the device box is coated with a high-temperature resistant and corrosion-resistant coating.

7. The alarm device for a mechanically sealed water pump according to claim 6, characterized in that, The fixed guide rail is fixed to the outer surface of the inner box by bolts.

Images