CN218937601U

CN218937601U - Mechanical seal temperature monitoring system

Info

Publication number: CN218937601U
Application number: CN202223124176.7U
Authority: CN
Inventors: 廖颖; 白小波
Original assignee: Allwin Machine & Equipment Co ltd
Current assignee: Allwin Machine & Equipment Co ltd
Priority date: 2022-11-23
Filing date: 2022-11-23
Publication date: 2023-04-28
Anticipated expiration: 2032-11-23

Abstract

The utility model belongs to the technical field of sand mill mechanical seal temperature control, in particular to a mechanical seal temperature monitoring system which comprises a mechanical seal mounting seat, a mechanical seal element arranged on the mechanical seal mounting seat, a temperature probe arranged on the mechanical seal mounting seat and a PLC (programmable logic controller) electrically connected with the temperature probe; the side wall of the mechanical seal mounting seat is provided with a positioning hole, and the temperature probe is arranged in the positioning hole; the PLC controller is also electrically connected with a motor and a pump. The mechanical seal mounting seat is made of metal and is tightly attached to the mechanical seal, so that the measured temperature can truly reflect the real-time temperature of the mechanical seal, the side wall of the mechanical seal mounting seat is provided with the positioning hole, the temperature probe is arranged in the positioning hole, the temperature of the mechanical seal mounting seat can be directly, accurately and timely monitored, the temperature probe can be protected, and dirt deposition on the temperature probe is prevented from affecting the accuracy of monitoring the temperature of the mechanical seal mounting seat.

Description

Mechanical seal temperature monitoring system

Technical Field

The utility model relates to the technical field of sand mill mechanical seal temperature control, in particular to a mechanical seal temperature monitoring system.

Background

Mechanical seals play a critical role in sand mill grinding systems, and lack of mechanical seal coolant or insufficient coolant flow can cause the sealing surface of the mechanical seal to be too hot until the seal is burned out and damaged. Because the sealing effect of the mechanical seal directly influences the operation of the whole machine, particularly in the petrochemical industry field, if the mechanical seal leaks, the normal production is seriously influenced due to inflammable, explosive, volatile, highly toxic and other mediums. Serious safety accidents will also occur.

At present, the temperature of the cooling liquid is generally monitored on a mechanical seal cooling liquid return pipeline. The method mainly has two problems, namely, the measurement of the return water temperature of the mechanical seal cooling liquid is an indirect measurement mode of the mechanical seal ring temperature, and a large error can exist between the temperature and the actual temperature; secondly, along with the extension of time, temperature probe can deposit incrustation scale or other impurity on temperature probe owing to long-time monitoring coolant liquid return water temperature, and then influences temperature probe monitoring's accuracy, causes temperature measurement data's existence great difference.

Aiming at the problems, the utility model provides a mechanical seal temperature monitoring system.

Disclosure of Invention

The utility model provides a machine seal temperature monitoring system which can accurately monitor the temperature of a mechanical sealing element in real time and improves the accuracy of temperature monitoring.

The utility model provides the following technical scheme:

the mechanical seal temperature monitoring system comprises a mechanical seal mounting seat, a mechanical seal element arranged on the mechanical seal mounting seat, a temperature probe arranged on the mechanical seal mounting seat and a PLC (programmable logic controller) electrically connected with the temperature probe;

the side wall of the mechanical seal mounting seat is provided with a positioning hole, and the temperature probe is arranged in the positioning hole;

the PLC controller is also electrically connected with a motor and a pump.

Further, the inner wall of the positioning hole is provided with threads, and the temperature probe is arranged in the positioning hole through threaded connection.

Further, the length of the temperature probe is smaller than or equal to the length of the positioning hole.

Further, the edge of locating hole is equipped with the groove of stepping down along locating hole opening one end, be provided with the sealing washer that is used for sealed temperature probe and mechanical seal mount pad junction in the groove of stepping down.

Further, the PLC is electrically connected with man-machine interaction equipment.

Further, the PLC is also electrically connected with an audible and visual alarm.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the utility model as claimed.

In the utility model, the mechanical sealing element is arranged on the mechanical sealing installation seat, the temperature of the mechanical sealing element is detected by detecting the real-time temperature of the mechanical sealing installation seat, and the measured temperature can truly reflect the real-time temperature of the mechanical sealing element because the mechanical sealing installation seat is made of metal and is tightly attached to the mechanical sealing element, the side wall of the mechanical sealing installation seat is provided with the positioning hole, and the temperature probe is arranged in the positioning hole, so that the temperature of the mechanical sealing installation seat can be directly, accurately and real-time monitored, the temperature probe can be protected, and dirt deposited on the temperature probe can be prevented from affecting the accuracy of monitoring the temperature of the mechanical sealing installation seat.

Drawings

FIG. 1 is a schematic diagram of a connection structure of a mechanical seal temperature monitoring system according to an embodiment of the present utility model;

fig. 2 is an enlarged view of a portion a in fig. 1.

Reference numerals:

1. a mechanical seal mounting seat; 2. a mechanical seal; 3. a PLC controller; 4. a human-computer interaction device; 5. a motor; 6. a pump; 7. an audible and visual alarm; 8. a temperature probe; 9. a sealing gasket; 10. and positioning holes.

Detailed Description

Embodiments of the present utility model will be described below with reference to the accompanying drawings in the embodiments of the present utility model.

In describing embodiments of the present utility model, it should be noted that, unless explicitly stated and limited otherwise, the terms "coupled" and "mounted" should be interpreted broadly, and for example, "coupled" may or may not be detachably coupled; may be directly connected or indirectly connected through an intermediate medium. In addition, "communication" may be direct communication or may be indirect communication through an intermediary. Wherein, "fixed" means that the relative positional relationship is not changed after being connected to each other. References to orientation terms, such as "inner", "outer", "top", "bottom", etc., in the embodiments of the present utility model are merely to refer to the orientation of the drawings and, therefore, the use of orientation terms is intended to better and more clearly illustrate and understand the embodiments of the present utility model, rather than to indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the embodiments of the present utility model.

In embodiments of the present utility model, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature.

In the embodiment of the present utility model, "and/or" is merely an association relationship describing an association object, and indicates that three relationships may exist, for example, a and/or B may indicate: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

Reference in the specification to "one embodiment" or "some embodiments" or the like means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the utility model. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," and the like in the specification are not necessarily all referring to the same embodiment, but mean "one or more but not all embodiments" unless expressly specified otherwise. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless expressly specified otherwise.

Example 1

Referring to fig. 1 and 2, a mechanical seal temperature monitoring system comprises a mechanical seal mounting seat 1, a mechanical seal 2 mounted on the mechanical seal mounting seat 1, a temperature probe 8 arranged on the mechanical seal mounting seat 1, and a PLC controller 3 electrically connected with the temperature probe 8;

the side wall of the mechanical seal mounting seat 1 is provided with a positioning hole 10, and the temperature probe 8 is arranged in the positioning hole 10;

the PLC controller 3 is also electrically connected with a motor 5 and a pump 6.

The temperature probe 8 is arranged in the mechanical seal installation seat 1, so that the temperature of the mechanical seal installation seat 1 can be monitored between the temperature probe 8, and the mechanical seal installation seat 1 and the mechanical seal element 2 are tightly attached in use, so that the real-time temperature of the mechanical seal element 2 can be truly reflected, and the accuracy of temperature monitoring is ensured.

The inner wall of the positioning hole 10 is provided with threads, and the temperature probe 8 is arranged in the positioning hole 10 through threaded connection. The temperature probe 8 is arranged through threaded connection, so that the installation is convenient, the temperature probe can be directly connected with the mechanical seal installation seat 1, and the temperature monitoring to the mechanical seal installation seat 1 is convenient.

The length of the temperature probe 8 is less than or equal to the length of the positioning hole 10. On the one hand, the temperature probe 8 is ensured not to be exposed to the outside and is influenced by the external environment to influence the accuracy of temperature monitoring, and on the other hand, the outside dust and impurities are prevented from falling on the temperature probe 8 to influence the normal use of the temperature probe 8.

One end of the opening of the positioning hole 10 is provided with a yielding groove along the edge of the positioning hole 10, and a sealing gasket 9 used for sealing the joint of the temperature probe 8 and the mechanical sealing installation seat 1 is arranged in the yielding groove. Foreign dust in the external environment is prevented from entering the positioning holes 10 through the gaps by the sealing gasket 9 to influence the accuracy of temperature monitoring of the temperature probe 8.

The PLC controller 3 is also electrically connected with a man-machine interaction device 4. The temperature monitoring data are checked in real time by a user through the man-machine interaction device 4, so that reasonable operation is performed.

The PLC controller 3 is also electrically connected with an audible and visual alarm 7. The audible and visual alarm 7 is used for warning, so that when the temperature reaches the set critical temperature, a user can find out the problem in time, and then the problem is solved.

When the temperature probe 8 is installed in the positioning hole 10 of the mechanical seal installation seat 1 in use, the temperature of the mechanical seal installation seat 1 is monitored in real time through the temperature probe 8, as the mechanical seal 2 is installed on the mechanical seal installation seat 1, the temperature of the mechanical seal 2 is detected by detecting the real-time temperature of the mechanical seal installation seat 1, the detected temperature can truly reflect the real-time temperature of the mechanical seal 2 because the mechanical seal installation seat 1 is made of metal and is tightly attached to the mechanical seal 2, the temperature of the mechanical seal installation seat 1 monitored by the temperature probe 8 is the temperature of the mechanical seal 2, the critical value of the upper limit of the temperature is set through the PLC 3, the temperature fed back by the temperature probe 8 is normal when the temperature fed back by the temperature probe 8 is lower than the critical value, and when the temperature fed back by the temperature probe 8 reaches the critical value, the audible-visual alarm 7 is started to enable a user to know the temperature abnormality at the first time, meanwhile, the motor 5 and the pump 6 are controlled, on the one hand, the cooling liquid is increased, the machine is controlled to stop running, the temperature of the mechanical seal 2 is rapidly reduced, and the temperature of the mechanical seal 2 is prevented from being burnt and damaged due to the too high temperature.

In actual use, the sealing gasket 9 is a high-temperature-resistant sealing gasket 9, so that the influence of high temperature on the sealing gasket 9 is avoided, the sealing effect is influenced, the temperature detection data is further influenced, and the accuracy of temperature monitoring is ensured.

The present utility model is not limited to the above embodiments, and any person skilled in the art can easily think about the changes or substitutions within the technical scope of the present utility model, and the changes or substitutions are intended to be covered by the scope of the present utility model; embodiments of the utility model and features of the embodiments may be combined with each other without conflict. Therefore, the protection scope of the utility model is subject to the protection scope of the claims.

Claims

1. The mechanical seal temperature monitoring system comprises a mechanical seal mounting seat and a mechanical seal element arranged on the mechanical seal mounting seat, and is characterized by further comprising a temperature probe arranged on the mechanical seal mounting seat and a PLC (programmable logic controller) electrically connected with the temperature probe;

the PLC controller is also electrically connected with a motor and a pump.

2. The machine seal temperature monitoring system according to claim 1, wherein the inner wall of the positioning hole is provided with threads, and the temperature probe is arranged in the positioning hole through threaded connection.

3. The machine seal temperature monitoring system of claim 2, wherein the length of the temperature probe is less than or equal to the length of the locating hole.

4. A machine seal temperature monitoring system according to claim 3, wherein one end of the opening of the positioning hole is provided with a relief groove along the edge of the positioning hole, and a sealing gasket for sealing the joint of the temperature probe and the mechanical seal mounting seat is arranged in the relief groove.

5. The machine seal temperature monitoring system of claim 4, wherein the PLC controller is further electrically connected to a man-machine interaction device.

6. The machine seal temperature monitoring system of claim 5, wherein the PLC controller is further electrically connected to an audible and visual alarm.