Mechanical seal circulating water system capable of automatically alarming

Abstract

The utility model relates to an automatic alarm mechanical seal circulating water system which comprises a water tank, a pH meter, a pressure transmitter, electrolyte circulating pumps, a valve and a control system, a water outlet of the water tank is connected with a filter, a water return port is provided with a water return pipe, the filter is connected with a water outlet pipe based on a pipeline pump, and the electrolyte circulating pumps are arranged on the water outlet pipe in parallel. A pressure transmitter is installed on the water outlet pipe, an outlet of the electrolyte circulating pump is connected with the water return pipe, the control system is connected with the pressure transmitter and the pH meter, the pH meter is installed in the water tank, and the valve is used for controlling on-off and flow adjustment of mechanical seal water. The system monitors the water pressure and the pH value of the system in real time while cooling, lubricating and sealing the mechanical seal through circularly flowing mechanical seal water, and when the pressure of the mechanical seal water is abnormal and the PH value of the mechanical seal water is abnormal due to pollution caused by medium leakage, an alarm is triggered quickly, so that the safety and reliability of the whole system are improved, and the service life of the system is prolonged. And the problems in the prior art are effectively solved.

Description

Technical Field

[0001] This application relates to the field of pump technology, and more particularly to an automatic alarm mechanical seal circulating water system. Background Technology

[0002] In industrial production, the mechanical seal water circulation system of a pump is a key component in ensuring the stable operation of mechanical equipment. It uses circulating mechanical seal water to cool, lubricate, and seal the mechanical seal, effectively preventing media leakage and maintaining normal equipment operation.

[0003] During the operation of the existing mechanical seal water circulation system, when the mechanical seal water pressure is too low, resulting in insufficient mechanical seal water supply, the operators cannot be notified in time. This causes the mechanical seal to wear faster due to insufficient cooling and lubrication, eventually leading to mechanical seal damage. This not only increases equipment maintenance costs but may also cause production interruptions. When the mechanical seal of the transfer pump is damaged, corrosive media leak into the mechanical seal water. The contaminated mechanical seal water continues to circulate, causing corrosion to the entire mechanical seal water circulation pipeline, seriously affecting the system's service life and safety. Utility Model Content

[0004] To address or partially address the problems existing in related technologies, this application provides an automatic alarm mechanical seal circulating water system that uses circulating mechanical seal water to cool, lubricate, and seal the mechanical seal while simultaneously monitoring the system water pressure and pH value in real time.

[0005] The first aspect of this application provides an automatic alarm mechanical seal circulating water system, including: a water tank, a pH meter, a pressure transmitter, an electrolyte circulation pump, valves, and a control system. A filter is connected to the outlet of the water tank, and a return pipe is provided at the return outlet. The filter is connected to the outlet pipe via a pipeline pump. Multiple electrolyte circulation pumps are connected in parallel on the outlet pipe, and a pressure transmitter is installed on the outlet pipe. The outlet of the electrolyte circulation pump is connected to the return pipe. The control system is connected to the pressure transmitter and the pH meter. The pH meter is installed in the water tank, and the valve is used to control the on / off state and flow rate regulation of the mechanical seal water.

[0006] The outlet and return pipes are equipped with flanges at their ends, and flange covers are installed on the flanges.

[0007] The pipeline pumps include a No. 1 pipeline pump and a No. 2 pipeline pump. The input ends of the No. 1 pipeline pump and the No. 2 pipeline pump are connected to the water tank through valves, and the output ends are connected in series to the outlet pipe.

[0008] The valves include ball valves and check valves. A check valve is installed at the output end of the pipeline pump, and the ball valve is installed at a critical node in the system pipeline.

[0009] The technical solution provided in this application may include the following beneficial effects:

[0010] This application provides an automatic alarm mechanical seal circulating water system. While the circulating mechanical seal water cools, lubricates, and seals the mechanical seal, it simultaneously monitors the system water pressure and pH value in real time. When the mechanical seal water pressure becomes abnormal, an alarm is quickly triggered, allowing personnel to take timely action. This effectively prevents the mechanical seal from burning out due to low water pressure or insufficient water volume, significantly reducing the risk of equipment damage and maintenance costs, and ensuring the continuity and stability of production. When the mechanical seal water becomes contaminated due to media leakage, causing an abnormal pH value, the system immediately issues an alarm, prompting personnel to promptly inspect and address the issue. This prevents corrosive mechanical seal water from damaging the circulating pipeline, extends the service life of the mechanical seal water circulation system, improves the overall system safety and reliability, and effectively solves the problems existing in the prior art.

[0011] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0012] The above and other objects, features and advantages of this application will become more apparent from the more detailed description of exemplary embodiments thereof in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments thereof.

[0013] Figure 1 This is a schematic diagram of the system structure shown in the embodiments of this application;

[0014] Figure label:

[0015] In the diagram, 1—water tank, 2—pH meter, 3—ball valve, 4—Y-type filter, 5—pipeline pump No. 1, 6—pipeline pump No. 2, 7—check valve, 8—pressure transmitter, 9—electrolyte circulation pump, 10—flange cover, 11—outlet pipe, 12—return pipe. Detailed Implementation

[0016] Embodiments of this application will now be described in more detail with reference to the accompanying drawings. While embodiments of this application are shown in the drawings, it should be understood that this application may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to make this application more thorough and complete, and to fully convey the scope of this application to those skilled in the art.

[0017] It should be understood that although the terms "first," "second," "third," etc., may be used in this application to describe various information, this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of this application, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0018] In the description of this application, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0019] Unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0020] The technical solutions of the embodiments of this application are described in detail below with reference to the accompanying drawings.

[0021] like Figure 1The illustrated automatic alarm mechanical seal circulating water system includes: a water tank 1, a pH meter 2, a pressure transmitter 8, an electrolyte circulation pump 9, valves, and a control system. The water tank 1 has a float valve 3 at the top for a replenishment port and a return port, and two outlets (upper and lower) on its side wall. The pH meter 2 is installed inside the water tank 1. The water tank 1 serves as the storage source for the mechanical seal water. The two outlets are connected to a Y-type filter via pipes. A ball valve 3 is installed at the inlet of the Y-type filter to control the water output from the water tank 1, and the outlet is connected to the inlet of the pipeline pump via a pipe, ensuring that the mechanical seal water, after preliminary filtration of impurities, can smoothly enter the pipeline pump. As the core power source of the system, the pipeline pumps are configured with a No. 1 pipeline pump 5 at the upper outlet and a No. 2 pipeline pump 6 at the lower outlet. The output ends of the No. 1 and No. 2 pipeline pumps are connected to pipelines. After installing check valves 7 and ball valves 3 on the pipelines, the output ends of the two pipelines are connected in series to the outlet pipe 11. The outlet pipe 11 leads to multiple electrolyte circulation pumps 9, which are connected to the inlet and outlet pipes 11 and to the return pipe 12, respectively. The multiple electrolyte circulation pumps 9 are connected in parallel. Ball valves 3 are installed at the inlet and outlet ends of the electrolyte circulation pumps 9, which can flexibly control the on / off state and flow rate of the mechanical seal water, ensuring the stable operation of the entire mechanical seal water circulation system.

[0022] Flanges are installed at the ends of the outlet pipe 11 and the return pipe 12 to facilitate the parallel connection of more electrolyte circulation pumps 9 as needed. Through flange connections, new circulation pumps can be easily connected to the system, allowing for the adjustment and expansion of system parameters such as flow rate or pressure to adapt to different operating requirements. Flanges also facilitate the installation, disassembly, and maintenance of pipelines, enabling convenient replacement or repair of pipelines or equipment when necessary. When other equipment or pipelines are not required to be connected temporarily, the flange cover 10 is used to seal the flange opening, preventing debris from entering the pipeline, protecting the internal cleanliness of the pipeline, and ensuring the sealing of the pipeline system.

[0023] The control system is connected to pressure transmitter 8 and pH meter 2. pH meter 2 is installed in water tank 1. Pressure transmitter 8 and pH meter are used to monitor the pressure and pH of the mechanical seal water in real time. The mechanical seal water starts from water tank 1, flows through ball valve 3 at the outlet of water tank 1 and into Y-type filter via pipeline. During this process, ball valve 3 controls the flow of water from water tank 1. After entering the Y-type filter, impurities in the mechanical seal water are effectively filtered out, preventing them from entering subsequent equipment. The filtered mechanical seal water flows through pipeline into pipeline pump. The pipeline pump, as a power source, pressurizes the mechanical seal water and outputs it from its outlet, which is then transported through outlet pipe 11 to each parallel-connected electrolyte circulation pump 9. After entering the electrolyte circulation pump 9, the mechanical seal water completes the functions of cooling, lubrication, and sealing of the mechanical seals of related equipment. The mechanical seal water flowing out of the electrolyte circulation pump 9 is collected in return water pipe 12. During the process, the pressure transmitter 8 installed on the outlet pipe 11 monitors the sealing water pressure in real time, while the pH meter in the water tank 1 monitors the acidity or alkalinity of the sealing water. The pH threshold is set to 7.0, and an alarm is triggered when the pH value falls below the threshold. The pressure transmitter threshold is set to 0.3 MPa, and an alarm is triggered when the pressure falls below the threshold. Once the pressure or pH value becomes abnormal, the corresponding signal will be transmitted to the DCS system to trigger an alarm. Finally, the sealing water flows back to the water tank 1 along the return pipe 12, completing one complete water cycle. This cycle is repeated continuously to ensure the stable operation of the system.

[0024] Finally, it should be noted that in this document, relationships such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "include," "contain," or any other variations are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0025] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0026] The various embodiments of this application have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. An automatic alarm mechanical seal circulating water system, characterized in that, include: The system includes a water tank, a pH meter, a pressure transmitter, an electrolyte circulation pump, valves, and a control system. The water tank outlet is connected to a filter, and a return pipe is installed at the return outlet. The filter is connected to the outlet pipe via a pipeline pump. Multiple electrolyte circulation pumps are connected in parallel on the outlet pipe, and the pressure transmitter is installed on the outlet pipe. The outlet of each electrolyte circulation pump is connected to the return pipe. The control system is connected to the pressure transmitter and the pH meter. The pH meter is installed in the water tank. The valves are used to control the on / off state and flow rate of the mechanical seal water.

2. The automatic alarm mechanical seal circulating water system according to claim 1, characterized in that, The outlet pipe and the return pipe are equipped with flanges at their ends, and flange covers are installed at the flanges.

3. The automatic alarm mechanical seal circulating water system according to claim 1, characterized in that, The pipeline pump includes a No. 1 pipeline pump and a No. 2 pipeline pump. The input ends of the No. 1 pipeline pump and the No. 2 pipeline pump are respectively connected to the water tank through the valve, and the output ends are connected in series to the water outlet pipe.

4. The automatic alarm mechanical seal circulating water system according to claim 1, characterized in that, The valves include ball valves and check valves. The check valve is installed at the output end of the pipeline pump, and the ball valve is installed at a critical node in the system pipeline.

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