Mechanical seal detection mechanism of vertical rotary power equipment
By installing an annular collection tank and a liquid level monitoring device in the vertical rotary power equipment, the problem of delayed alarm after mechanical seal damage is solved, and timely leak detection and equipment protection are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-20
- Publication Date
- 2026-03-31
AI Technical Summary
When the mechanical seal of a vertical rotary power equipment fails, the leaking sealing fluid or medium will trigger a delayed alarm, leading to equipment damage and safety hazards. The existing alarm mechanism is lagging and cannot stop the machine in time.
An annular collection tank and a liquid level monitoring device are installed inside the equipment cavity. The device is connected to a liquid collection container via a connecting pipe. The liquid storage pipe is used to improve the accuracy of liquid level monitoring and to promptly alarm and control the equipment to shut down in case of leakage.
Effectively monitor mechanical seal leaks, prevent sealant overflow, protect equipment, avoid pollution and explosion risks, and enable rapid shutdown.
Smart Images

Figure CN224066292U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of mechanical seal testing technology, and in particular relates to a mechanical seal testing mechanism for vertical rotating power equipment. Background Technology
[0002] A mechanical seal is a shaft sealing device used in rotating fluid machinery. It is suitable for equipment with a rotating shaft that needs to prevent media leakage, especially under conditions involving high temperature, toxic, flammable, or corrosive media. Mechanical seals in vertical rotating equipment are typically installed on the underside or one side of the rotating shaft, and other components or equipment are often installed below the mechanical seal.
[0003] When equipment malfunctions and causes damage to the mechanical seal, the sealing fluid or liquid in the cavity will be discharged from the sealing end face. However, the alarm mechanism of rotating equipment is often delayed. After the mechanical seal is damaged, the equipment will continue to run for a period of time. Even after the alarm stops and the pipeline is cut off, the liquid in the cavity will continue to be discharged for a period of time. The overflow of toxic, corrosive, and explosive sealing fluid or media will not only damage other parts of the equipment and cause pollution, but in severe cases, it may cause an explosion and create danger. Utility Model Content
[0004] The purpose of this utility model embodiment is to provide a mechanical seal testing mechanism for vertical rotating power equipment, aiming to solve the problems existing in the above-mentioned background art.
[0005] This utility model embodiment is implemented as follows: the mechanical seal testing mechanism for a vertical rotating power equipment includes a device cavity, a mechanical seal, and a testing unit:
[0006] The mechanical seal is arranged inside the equipment cavity;
[0007] The detection unit includes an annular collection tank, a connecting pipe, a liquid level monitoring device, and a liquid collection container. The annular collection tank is installed at the bottom of the mechanical seal and is fixedly connected to the inside of the equipment cavity. The bottom of the annular collection tank has an opening, which is connected to an external liquid collection container on the ground through a connecting pipe. A section of liquid storage pipe is provided on the side wall of the liquid collection container for installing the liquid level monitoring device.
[0008] The liquid storage tube has a small diameter so that a higher liquid level can be generated in the event of a slight leak, thereby improving the alarm accuracy of the liquid level monitoring device.
[0009] Preferably, a retaining ring is installed on the annular collection groove to prevent liquid and sealing fluid from splashing out of the equipment cavity.
[0010] Preferably, the liquid level monitoring device is connected to the equipment to trigger an alarm when a liquid leak is detected, thereby controlling the equipment to shut down quickly.
[0011] The mechanical seal detection mechanism for vertical rotary power equipment provided in this embodiment can effectively monitor the leakage of mechanical seals and collect the leaked liquid and sealing fluid in the equipment cavity into a liquid collection container. This prevents the leakage of high-temperature, toxic, corrosive, and flammable sealing fluid or media when the mechanical seal is damaged, which could damage other parts of the equipment or cause pollution or explosion. Attached Figure Description
[0012] Figure 1 A schematic diagram of the mechanical seal testing mechanism for a vertical rotary power equipment provided in this embodiment of the utility model;
[0013] In the attached diagram: 1-Equipment cavity; 2-Mechanical seal; 3-Annular collection tank; 4-Connecting pipe; 5-Liquid level monitoring device; 6-Liquid collection container. Detailed Implementation
[0014] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0015] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.
[0016] like Figure 1 The diagram shows the structure of a mechanical seal detection mechanism for a vertical rotating power equipment according to an embodiment of the present invention. It includes a device cavity 1, a mechanical seal 2, and a detection unit. The mechanical seal 2 is arranged inside the device cavity 1. The detection unit includes an annular collection trough 3, a connecting pipe 4, a liquid level monitoring device 5, and a liquid collection container 6. The annular collection trough 3 is installed at the bottom of the mechanical seal 2 and is fixedly connected to the inside of the device cavity 1. The bottom of the annular collection trough 3 has an opening, which is connected to an externally placed liquid collection container 6 on the ground via the connecting pipe 4. A section of liquid storage pipe is provided on the side wall of the liquid collection container 6 for installing the liquid level monitoring device 5. The liquid storage pipe has a small diameter to allow for a higher liquid level in the event of a minor leak, thereby improving the alarm accuracy of the liquid level monitoring device 5.
[0017] In one embodiment of this utility model, the liquid level monitoring device 5 is connected to the equipment so as to trigger an alarm when liquid leakage is detected, thereby controlling the equipment to shut down quickly.
[0018] like Figure 1 As shown, in a preferred embodiment of the present invention, a retaining ring is installed on the annular collection groove 3 to prevent liquid and sealing liquid from splashing out of the equipment cavity 1.
[0019] In one embodiment of this utility model, in addition to preventing splashing, the baffle ring also has a certain function of converging, which allows liquid and sealing liquid to gather in the annular collection tank 3 and be transported to the liquid collection container 6 for collection through the connecting pipe 4.
[0020] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.
[0021] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A seal detection mechanism for a vertical rotary power machine, characterized by, The device cavity, mechanical seal and detection unit are included: The mechanical seal is arranged inside the device cavity; The detection unit includes a ring-shaped collection groove, a connecting pipe, a liquid level monitoring device and a liquid collection container. The ring-shaped collection groove is installed at the bottom of the mechanical seal and fixedly connected with the inside of the device cavity. The bottom of the ring-shaped collection groove is provided with an opening, which is connected with the externally arranged liquid collection container on the ground through the connecting pipe. A liquid storage pipe is arranged on the sidewall of the liquid collection container, and the liquid level monitoring device is installed on the liquid storage pipe.
2. The mechanical seal detection mechanism of a vertical rotary power device according to claim 1, characterized by, A blocking ring is installed on the ring-shaped collection groove to prevent the liquid in the device cavity and the sealing liquid from splashing.
3. The mechanical seal detection mechanism of a vertical rotary power device according to Claim 1, characterized by, The liquid level monitoring device is connected with the device to alarm when liquid leakage is monitored, so as to control the device to stop quickly.