Teflon helical casing bottom flushing mechanical seal

Abstract

The utility model relates to the technical field of mechanical seals, in particular to a teflon helical casing bottom washing mechanical seal which comprises a reaction kettle, one end of a first feeding port is installed on the outer side of the reaction kettle, a liquid injection port is installed at the other end of the first feeding port, and a valve is installed on the outer wall of the first feeding port. A static ring seat assembly is mounted at the bottom end of the reaction kettle and comprises a static ring seat body mounted at the bottom end of the reaction kettle, a screw is mounted on the inner wall of the static ring seat body, a positioning rod is mounted on the surface of the top of the static ring seat body, and a second feeding hole is formed in the inner wall of the static ring seat body; a liquid outlet is formed in one end of the second feeding hole. According to the improved mechanical seal, the design convenient to clean is adopted, materials attached between the stirring shaft and the mechanical seal can be washed, the failure of the mechanical seal caused by material deposition is avoided, the design convenient to install is adopted, the stationary ring seat assembly and the reaction kettle are convenient to install, and the installation efficiency is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical seals, in particular to a tetrafluoroethylene spiral sleeve bottom flushing mechanical seal. Background Art

[0002] A mechanical seal, also known as a face seal, is a device used to seal between a rotating shaft and a machine body. It effectively blocks the flow of gaseous or liquid media by creating an effective barrier between two surfaces in contact and relative motion. Mechanical seals are widely used in various equipment and systems, such as hydraulic systems, pumps, generators, and the powertrains of electric vehicles.

[0003] In mechanical sealing technology, many solid materials will be entrained by gas or vaporized liquid during the reaction process and deposited on the shaft mechanical seal of the upper reactor. The end face of the mechanical seal is a smooth plane. If foreign matter enters, it will damage the end face of the mechanical seal or block the shaft sleeve of the mechanical seal, causing the mechanical seal to fail and thus cause mechanical seal leakage.

[0004] In the process of realizing the present invention, the inventors found that the existing technology had the following problems: 1. During daily use, solid deposits will be present on the end faces of existing mechanical seals. Traditional mechanical seals are inconvenient to remove the deposited materials, which easily causes material deposition and leads to failure of the mechanical seals; 2. The structure of the existing mechanical seals is relatively simple, which makes it inconvenient to quickly install the mechanical seals and it is inconvenient to position the installation of the mechanical seals, resulting in low installation efficiency. Utility Model Content

[0005] The purpose of this utility model is to provide a polyfluoroethylene spiral sleeve bottom-flush mechanical seal to address the problems of mechanical seals mentioned in the above-mentioned background art, which are inconvenient to clean and install. To achieve the above-mentioned objectives, the utility model provides the following technical solution: a polyfluoroethylene spiral sleeve bottom-flush mechanical seal comprising a reactor, wherein one end of a first feed inlet is mounted on the outside of the reactor, a liquid injection port is mounted on the other end of the first feed inlet, a valve is mounted on the outer wall of the first feed inlet, and a stationary ring seat assembly is mounted on the bottom end of the reactor.

[0006] The stationary ring seat assembly includes a stationary ring seat body installed at the bottom end of the reactor, the inner wall of the stationary ring seat body is installed with screws, the top surface of the stationary ring seat body is installed with a positioning rod, the inner wall of the stationary ring seat body is provided with a second feed port, and one end of the second feed port is provided with a liquid outlet.

[0007] Further preferably, the stationary ring seat assembly and the reactor form a spliced ​​structure.

[0008] Further preferably, a sealing ring is provided on the outer wall of the stationary ring seat body.

[0009] Further preferably, there are two positioning rods, which are symmetrical about the central axis of the stationary ring seat body, and the inner wall of the reactor is provided with a positioning hole whose internal dimension structure is consistent with the external dimension structure of the positioning rods.

[0010] Further preferably, the screws are configured to be hexagonal, and there are three screws in total, and the screws are symmetrical about the central axis of the stationary ring seat body, and a threaded hole having an internal dimension structure consistent with the external dimension structure of the screw is opened on the bottom surface of the reactor.

[0011] Further preferably, the material of the stationary ring seat body is set to PTFE.

[0012] Further preferably, the liquid outlet is configured to be inclined upward.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] In the utility model, a design that is easy to clean is adopted. After the reactor and the static ring seat assembly are spliced ​​and installed, the second feed port is connected to the first feed port, and the first feed port is connected to the cleaning solvent through the liquid injection port. The valve can be opened as needed to inject the cleaning solution through the liquid injection port, and the cleaning solvent can be sprayed out through the liquid outlet, which can flush the material attached between the stirring shaft and the mechanical seal to avoid material deposition causing mechanical seal failure.

[0015] In the utility model, a design that is easy to install is adopted. Two positioning rods are symmetrically distributed on the top surface of the static ring seat assembly, and a positioning hole whose internal dimension structure is consistent with the external dimension structure of the positioning rod is opened on the bottom surface of the reactor. It is convenient to splice the static ring seat assembly with the reactor through the positioning rod and the positioning hole, and then effectively fix it with screws, which effectively improves the installation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the front view structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the explosion structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the exploded and enlarged structure of the stationary ring seat assembly of the utility model;

[0019] Figure 4 This is a schematic diagram of the fully enlarged structure of the stationary ring seat assembly of the utility model.

[0020] In the figure: 1, reactor; 2, first feed port; 3, liquid injection port; 4, valve; 5, stationary ring seat assembly; 501, stationary ring seat body; 502, screw; 503, positioning rod; 504, second feed port; 505, liquid outlet. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technical personnel in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0022] See also Figures 1 to 4 The utility model provides a technical solution: a polyfluoro spiral sleeve bottom flushing mechanical seal, comprising a reactor 1, one end of a first feed port 2 is installed on the outside of the reactor 1, a liquid injection port 3 is installed on the other end of the first feed port 2, a valve 4 is installed on the outer wall of the first feed port 2, and a static ring seat assembly 5 is installed at the bottom end of the reactor 1.

[0023] The stationary ring seat assembly 5 includes a stationary ring seat body 501 installed at the bottom end of the reactor 1, a screw 502 is installed on the inner wall of the stationary ring seat body 501, a positioning rod 503 is installed on the top surface of the stationary ring seat body 501, and a second feed port 504 is provided on the inner wall of the stationary ring seat body 501, and a liquid outlet 505 is provided at one end of the second feed port 504.

[0024] In this embodiment, Figure 2 As shown, the stationary ring seat assembly 5 and the reactor 1 form a splicing structure; through this design, it is convenient to splice and install the stationary ring seat assembly 5 and the reactor 1, effectively improving the installation efficiency.

[0025] In this embodiment, Figure 3 As shown, a sealing ring is provided on the outer wall of the stationary ring seat body 501; through this design, when the stationary ring seat assembly 5 is installed with the reactor 1, the sealing ring can effectively improve the sealing of the connection and improve the sealing ability of the device.

[0026] In this embodiment, Figure 3 As shown, there are two positioning rods 503, and the positioning rods 503 are symmetrical about the central axis of the static ring seat body 501, and the inner wall of the reactor 1 is provided with a positioning hole whose internal dimension structure is consistent with the external dimension structure of the positioning rods 503; through this design, when the static ring seat assembly 5 is installed with the reactor 1, the installation of the static ring seat assembly 5 can be positioned by the positioning rods 503 and the positioning holes to avoid offset and affect the sealing effect of the device.

[0027] In this embodiment, Figure 3 As shown, the screw 502 is designed to be hexagonal, and there are three screws 502 in total, and the screws 502 are symmetrical about the central axis of the stationary ring seat body 501. At the same time, the bottom surface of the reactor 1 is provided with a threaded hole whose internal dimension structure is consistent with the external dimension structure of the screw 502. Through this design, when the reactor 1 and the stationary ring seat assembly 5 are spliced, the reactor 1 and the stationary ring seat assembly 5 can be effectively fixed by the screw 502.

[0028] In this embodiment, Figure 3 As shown, the material of the stationary ring seat body 501 is set to PTFE; through this design, the stationary ring seat body 501 has good corrosion resistance and can have a certain strength.

[0029] In this embodiment, Figure 4 As shown, the liquid outlet 505 is set to be inclined upward; through this design, after the static ring seat assembly 5 is spliced ​​with the reactor 1, the second feed port 504 is connected to the first feed port 2, and the first feed port 2 is connected to the cleaning solvent through the liquid injection port 3, the valve 4 can be opened, and the cleaning solution can be injected through the liquid injection port 3, and the cleaning solvent can be sprayed out through the liquid outlet 505, which can flush the material attached between the stirring shaft and the mechanical seal to avoid material deposition causing mechanical seal failure.

[0030] The use method and advantages of the utility model: The working process of the PTFE spiral sleeve bottom flushing mechanical seal is as follows when in use:

[0031] like Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, first, when the stationary ring seat assembly 5 and the reactor 1 are spliced ​​and installed, the sealing ring can effectively improve the sealing of the connection as needed, and when the stationary ring seat assembly 5 and the reactor 1 are installed, the installation of the stationary ring seat assembly 5 can be positioned by the positioning rod 503 and the positioning hole to avoid offset. After the stationary ring seat assembly 5 and the reactor 1 are spliced, three screws 502 can be screwed in respectively to effectively fix the stationary ring seat assembly 5 and the reactor 1. At this time, the second feed port 504 is connected to the first feed port 2, and the first feed port 2 is connected to the cleaning solvent through the liquid injection port 3. The valve 4 can be opened as needed, and the cleaning solution can be injected through the liquid injection port 3, and the cleaning solvent can be sprayed out through the liquid outlet 505, which can flush the material attached to the stirring shaft and the mechanical seal.

[0032] The above shows and describes the basic principles, main features, and advantages of the present invention. Persons skilled in the art should understand that the present invention is not limited to the above-described embodiments. The above-described embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A PTFE spiral sleeve bottom flushing mechanical seal, comprising a reactor (1), characterized in that: One end of a first feed port (2) is installed on the outside of the reactor (1), a liquid injection port (3) is installed on the other end of the first feed port (2), a valve (4) is installed on the outer wall of the first feed port (2), and a stationary ring seat assembly (5) is installed at the bottom end of the reactor (1); The stationary ring seat assembly (5) includes a stationary ring seat body (501) installed at the bottom end of the reactor (1), the inner wall of the stationary ring seat body (501) is installed with a screw (502), the top surface of the stationary ring seat body (501) is installed with a positioning rod (503), the inner wall of the stationary ring seat body (501) is provided with a second feed port (504), and one end of the second feed port (504) is provided with a liquid outlet (505).

2. A PTFE spiral sleeve bottom flushing mechanical seal according to claim 1, characterized in that: The stationary ring seat assembly (5) and the reaction kettle (1) form a spliced ​​structure.

3. The PTFE spiral sleeve bottom flushing mechanical seal according to claim 1, characterized in that: The outer wall of the stationary ring seat body (501) is provided with a sealing ring.

4. The PTFE spiral sleeve bottom flushing mechanical seal according to claim 1, characterized in that: There are two positioning rods (503) in total, and the positioning rods (503) are symmetrical about the central axis of the stationary ring seat body (501), and the inner wall of the reactor (1) is provided with a positioning hole whose internal size structure is consistent with the external size structure of the positioning rods (503).

5. The PTFE spiral sleeve bottom flushing mechanical seal according to claim 1, characterized in that: The screws (502) are designed to be hexagonal, and there are three screws (502) in total. The screws (502) are symmetrical with respect to the central axis of the stationary ring seat body (501). At the same time, a threaded hole with an internal size structure consistent with the external size structure of the screws (502) is opened on the bottom surface of the reactor (1).

6. The PTFE spiral sleeve bottom flushing mechanical seal according to claim 1, characterized in that: The material of the stationary ring seat body (501) is set to PTFE.

7. The PTFE spiral sleeve bottom flushing mechanical seal according to claim 1, characterized in that: The liquid outlet (505) is configured to be inclined upward.

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