Magnetic transmission reaction kettle and stirring shaft bearing oiling device thereof

Abstract

The utility model relates to a magnetic transmission high-pressure reaction kettle and a stirring shaft bearing oiling device thereof, which comprise a kettle body and a stirring shaft which is in running fit with the kettle body through a stirring shaft bearing, the kettle body is provided with an oiling port for injecting oil into the stirring shaft bearing, and the magnetic transmission high-pressure reaction kettle further comprises the stirring shaft bearing oiling device, the stirring shaft bearing oil filling device comprises a lubricating oil tank and an oil filling pipeline connected between the lubricating oil tank and an oil filling port, a quantitative oil filling valve is arranged on the oil filling pipeline, an oil filling pump is arranged between the lubricating oil tank and the quantitative oil filling valve, and a downstream pressure measuring device is arranged on the oil filling pipeline on the downstream of the quantitative oil filling valve. An upstream pressure measuring device is arranged on the oil filling pipeline on the upstream of the quantitative oil filling valve, an oil return pipeline is further arranged between the upstream pipeline and the lubricating oil tank, and an overflow valve is arranged on the oil return pipeline. The utility model provides the magnetic transmission high-pressure reaction kettle which can be used for oiling and lubricating the bearing of the stirring shaft in the non-stop process of the kettle body.

Description

Technical Field

[0001] The utility model relates to the technical fields of metallurgy and chemical industry, in particular to a magnetic transmission high-pressure reactor and a stirring shaft bearing oiling device thereof. Background Art

[0002] Magnetic transmission reactor, also known as magnetic reactor or magnetic drive reactor, is a commonly used equipment in the fields of metallurgy and chemical industry. It is mostly used in high temperature, high pressure and toxic working conditions. It is an intermittently operated chemical reactor.

[0003] Existing magnetically driven high-pressure reactors, such as the "Magnetic Driven High-Pressure Reactor" disclosed in Chinese patent CN207591814U, include a reactor body, on which a stirring shaft is rotatably mounted through a stirring shaft bearing, and the stirring shaft is provided with stirring blades located inside the reactor body. The magnetically driven high-pressure reactor also includes a stirring shaft drive mechanism, which includes a motor and a reducer connected to the motor, and the reducer is connected to the stirring shaft through a magnetic coupler.

[0004] The reducer is connected to the agitator shaft via a magnetic coupling. The agitator shaft does not need to pass through the top of the kettle body. The only connection between the agitator shaft and the outside of the kettle body is the oil filling port of the agitator shaft bearing. This helps to prevent leakage in the high-pressure environment within the kettle body. When the equipment is used as an intermittent device, the oil filling valve at the oil filling port is closed during normal operation, which can completely solve the leakage problem that mechanical seals and packing seals could not solve before. The entire medium mixing component operates in a completely sealed state.

[0005] When a magnetic drive reactor is used as an intermittent device, the agitator shaft bearing can be lubricated with grease during downtime. However, due to defects in the existing refueling method, magnetic drive reactors can only be refueled when they are stopped. When the magnetic drive reactor is used as a continuous device for long periods of operation, the high pressure inside the reactor causes the material inside the reactor to spray out from the oil filling port when the bearing lubricant is added. This poses a significant safety hazard and restricts the use of magnetic drive reactors in continuous operation conditions. Utility Model Content

[0006] The purpose of the utility model is to provide a magnetic transmission high-pressure reactor, which can lubricate the stirring shaft bearings without stopping the reactor body; the purpose of the utility model is also to provide a stirring shaft bearing oiling device used in the magnetic transmission reactor.

[0007] In order to solve the above technical problems, the technical solution of the magnetic reactor in the utility model is as follows:

[0008] The magnetic transmission high-pressure reactor comprises a reactor body and a stirring shaft which rotates with the reactor body through a stirring shaft bearing, and also comprises a stirring shaft driving mechanism which is connected to the stirring shaft through a magnetic coupling. The reactor body is provided with a refueling port for oiling the stirring shaft bearing. The magnetic transmission high-pressure reactor also comprises a stirring shaft bearing refueling device, which comprises a lubricating oil tank and a refueling pipeline connected between the lubricating oil tank and the refueling port. A quantitative refueling valve is provided on the refueling pipeline, a refueling pump is provided between the lubricating oil tank and the quantitative refueling valve, the refueling pipeline between the quantitative refueling valve and the refueling port is a downstream pipeline, a downstream pressure measuring device is provided on the downstream pipeline, the refueling pipeline between the quantitative refueling valve and the lubricating oil tank is an upstream pipeline, an upstream pressure measuring device is provided on the upstream pipeline, a return oil pipeline is also provided between the upstream pipeline and the lubricating oil tank, and an overflow valve is provided on the return oil pipeline.

[0009] Furthermore, the quantitative refueling valve is a normally closed quantitative refueling valve.

[0010] Furthermore, a downstream switch valve is provided on the downstream pipeline, and an upstream switch valve is provided on the upstream pipeline.

[0011] Furthermore, a check valve is provided on the downstream pipeline.

[0012] Furthermore, the agitator shaft bearing includes an upper bearing and a lower bearing spaced apart from each other, the refueling port includes an upper refueling port corresponding to the upper bearing and a lower refueling port corresponding to the lower bearing, and there are two refueling pipes, one of which is connected to the upper refueling port, and the other is connected to the lower refueling port.

[0013] The technical solution of the stirring shaft bearing oiling device in the utility model is:

[0014] The stirring shaft bearing oiling device, the magnetic transmission high-pressure reactor also includes a stirring shaft bearing oiling device, the stirring shaft bearing oiling device includes a lubricating oil tank and a oiling pipeline connected between the lubricating oil tank and the oil filling port, a quantitative oiling valve is provided on the oiling pipeline, a oiling pump is provided between the lubricating oil tank and the quantitative oiling valve, the oiling pipeline between the quantitative oiling valve and the oil filling port is a downstream pipeline, a downstream pressure measuring device is provided on the downstream pipeline, the oiling pipeline between the quantitative oiling valve and the lubricating oil tank is an upstream pipeline, an upstream pressure measuring device is provided on the upstream pipeline, a return oil pipeline is also provided between the upstream pipeline and the lubricating oil tank, and an overflow valve is provided on the return oil pipeline.

[0015] The quantitative refueling valve is a normally closed quantitative refueling valve.

[0016] A downstream switch valve is provided on the downstream pipeline, and an upstream switch valve is provided on the upstream pipeline.

[0017] A check valve is provided on the downstream pipeline.

[0018] The agitator shaft bearing includes an upper bearing and a lower bearing spaced apart from each other. The refueling port includes an upper refueling port corresponding to the upper bearing and a lower refueling port corresponding to the lower bearing. There are two refueling lines, one of which is connected to the upper refueling port, and the other is connected to the lower refueling port.

[0019] The beneficial effects of the present invention are as follows: in the present invention, the downstream pipeline is connected to the refueling port, so the pressure of the downstream pipeline is consistent with the pressure at the agitator shaft bearing, the downstream pressure detection device can detect the pressure value at the agitator shaft bearing, and the upstream pressure detection device can detect the pressure value of the upstream pipeline, and the pressure of the upstream pipeline is guaranteed to be always greater than the pressure value of the downstream pipeline by the pressurization of the refueling pump. In this way, even if the pressure value at the agitator shaft bearing is large without stopping the machine, lubricating grease can be smoothly injected into the agitator shaft bearing through the quantitative refueling valve, so that the magnetic transmission high-pressure reactor can adapt to continuous operation conditions.

[0020] Furthermore, a check valve is provided on the downstream pipeline to ensure that the pressure in the reactor does not flow back into the upstream pipeline.

[0021] Furthermore, the quantitative refueling valve is a normally closed quantitative refueling valve. When the pressure of the upstream pipeline upstream of the quantitative refueling valve is lower than the downstream pipeline downstream of the quantitative refueling valve, the quantitative refueling valve is in a closed state, further ensuring that the pressure in the reactor will not flow into the upstream pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The above and other objects, features and advantages of the exemplary embodiments of the present disclosure will become readily understood by reading the detailed description below with reference to the accompanying drawings. In the accompanying drawings, several embodiments of the present disclosure are shown in an illustrative and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein:

[0023] Figure 1 This is a structural diagram of an embodiment of a magnetic transmission high-pressure reactor in the utility model;

[0024] Figure 2 yes Figure 1 Schematic diagram of the structure of the agitator shaft bearing oiling device;

[0025] 1. Kettle body; 2. Stirring shaft; 3. Motor; 4. Gearbox; 5. Upper refueling port; 6. Lower refueling port; 7. Stirring shaft refueling device; 8. First refueling line; 9. Second refueling line; 10. Lubricating oil tank; 11. Upstream pipeline; 12. Downstream pipeline; 13. Return oil line; 14. Overflow valve; 15. Refueling pump; 16. Upstream pressure measuring device; 17. Dosed refueling valve; 18. Upstream switching valve; 19. Downstream pressure measuring device; 20. Downstream switching valve; 21. Check valve. DETAILED DESCRIPTION

[0026] To facilitate understanding of the present invention, the present invention is described in more detail below with reference to the accompanying drawings and specific embodiments. The accompanying drawings illustrate preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described in this specification. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the disclosure of the present invention.

[0027] It should be noted that, unless otherwise defined, all technical and scientific terms used in this specification have the same meanings as those commonly understood by those skilled in the art in the field of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0028] The embodiment of a magnetic transmission high pressure reactor in the utility model is as follows Figures 1 and 2 As shown:

[0029] It includes a kettle body 1 and a stirring shaft 2 that rotates with the kettle body 1 through a stirring shaft bearing. The stirring shaft bearing of this embodiment includes an upper bearing and a lower bearing arranged at intervals above and below. The magnetic transmission high-pressure reactor also includes a stirring shaft drive mechanism connected to the stirring shaft through a magnetic coupling. The stirring shaft drive mechanism also includes a motor 3 and a gearbox 4 connected to the motor. The gearbox 4 is connected to the stirring shaft through a magnetic coupling. A refueling port for oiling the stirring shaft bearing is provided on the kettle body. The refueling port includes an upper refueling port 5 corresponding to the upper bearing and a lower refueling port 6 corresponding to the lower bearing.

[0030] The above all belong to the prior art. The improvement of the present utility model is that: the magnetic transmission high-pressure reactor also includes a stirring shaft bearing refueling device, and the stirring shaft bearing refueling device also includes a lubricating oil tank and a refueling pipeline connected between the lubricating oil tank 10 and the corresponding refueling port. Since there are two refueling ports in this embodiment, there are also two refueling pipelines, one of which is a first refueling pipeline 8 connected to the upper refueling port 5, and the other refueling pipeline is a second refueling pipeline 9 connected to the lower refueling port 6. The first refueling pipeline 8 and the second refueling pipeline 9 have the same structure. Now only the specific structure of the second refueling pipeline 9 is introduced in detail.

[0031] A metered refueling valve 17 is provided on the second refueling line. A refueling pump 15 is provided between the lubricating oil tank 10 and the metered refueling valve. The refueling line between the metered refueling valve 17 and the corresponding refueling port is the downstream line 12, on which a downstream pressure measuring device 19 is provided. The refueling line between the metered refueling valve and the lubricating oil tank is the upstream line 11, on which an upstream pressure measuring device 16 is provided. A return oil line 13 is also provided between the upstream line 11 and the lubricating oil tank 10, on which a relief valve 14 is provided. In this embodiment, both the upstream and downstream pressure measuring devices are pressure gauge-type pressure sensors, and the relief valve is a back-pressure relief valve.

[0032] In this embodiment, the metered refueling valve is a normally closed metered refueling valve. A normally closed metered pressure-increasing valve means that when the pressure of the upstream pipeline upstream of the metered refueling valve is less than the pressure of the downstream pipeline downstream of the metered refueling valve, the metered refueling valve is in a closed state that cannot be opened. The metered refueling valve can only be opened when the pressure of the upstream pipeline is greater than the pressure of the downstream pipeline.

[0033] The downstream pipeline 12 is provided with a downstream on-off valve 20, and the upstream pipeline 11 is provided with an upstream on-off valve 18. A check valve 21 is also provided on the downstream pipeline.

[0034] During operation, the two refueling lines can be independently controlled. The start and stop of the refueling pump are linked to the measured values of the upstream and downstream pressure measuring devices. When the ratio of the upstream and downstream pressure measuring devices is less than 1, the refueling pump starts; when the upstream and downstream pressure measuring devices are greater than 2, the refueling pump stops. When the ratio of the upstream and downstream pressure measuring devices is greater than 2, the excess pressure in the upstream line is discharged back to the lubricating oil tank through the relief valve. The opening and closing of the metered refueling valve are linked to the measured values of the upstream and downstream pressure measuring devices. When the ratio of the upstream and downstream pressure measuring devices is less than 1, that is, when the upstream line pressure is less than the downstream line pressure, the metered refueling valve closes. During operation, the pressure in the downstream line is consistent with the pressure in the reactor. The single refueling volume and refueling interval of the metered refueling valve can be set through the electrical control cabinet, enabling online automatic refueling while the reactor is operating.

[0035] The implementation example of the stirring shaft bearing oiling device Figures 1 and 2 As shown: the specific structure of the stirring shaft bearing oiling device is the same as the stirring shaft bearing oiling device described in the above-mentioned magnetic transmission high-pressure reactor embodiments, and will not be described in detail here.

[0036] In the above description of this specification, unless otherwise expressly specified or limited, terms such as "fixed," "mounted," "connected," or "connected" should be understood broadly. For example, the term "connected" can refer to a fixed connection, a removable connection, or an integral connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or the internal connection between two components or the interaction between two components. Therefore, unless otherwise expressly defined in this specification, those skilled in the art can understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0037] According to the above description of this specification, those skilled in the art may also understand that the terms used below, such as "up", "down", "front", "back", "left", "right", "length", "width", "thickness", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", "center", "longitudinal", "lateral", "clockwise" or "counterclockwise", etc., which indicate orientation or positional relationships, are based on the orientation or positional relationships shown in the drawings of this specification, and are only for the purpose of facilitating the explanation of the scheme of the utility model and simplifying the description, rather than explicitly or implicitly indicating that the device or element involved must have the specific orientation, be constructed and operate in a specific orientation. Therefore, the above-mentioned orientation or positional relationship terms cannot be understood or interpreted as limitations on the scheme of the utility model.

[0038] In addition, the terms "first" or "second" used in this specification to refer to numbers or ordinal numbers are used for descriptive purposes only and should not be understood as explicitly or implicitly indicating relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this specification, "plurality" means at least two, such as two, three or more, etc., unless otherwise clearly specified.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A magnetic transmission high-pressure reactor, comprising a reactor body and a stirring shaft rotatably coupled to the reactor body via a stirring shaft bearing, and a stirring shaft drive mechanism connected to the stirring shaft via a magnetic coupling. The reactor body is provided with a refueling port for oiling the stirring shaft bearing, characterized in that: The magnetic transmission high-pressure reactor also includes an agitator shaft bearing refueling device, which includes a lubricating oil tank and a refueling pipeline connected between the lubricating oil tank and the refueling port. A quantitative refueling valve is provided on the refueling pipeline, and a refueling pump is provided between the lubricating oil tank and the quantitative refueling valve. The refueling pipeline between the quantitative refueling valve and the refueling port is a downstream pipeline, and a downstream pressure measuring device is provided on the downstream pipeline. The refueling pipeline between the quantitative refueling valve and the lubricating oil tank is an upstream pipeline, and an upstream pressure measuring device is provided on the upstream pipeline. A return oil pipeline is also provided between the upstream pipeline and the lubricating oil tank, and an overflow valve is provided on the return oil pipeline.

2. The magnetic transmission high-pressure reactor according to claim 1, characterized in that: The quantitative refueling valve is a normally closed quantitative refueling valve.

3. The magnetic transmission high-pressure reactor according to claim 1, characterized in that: A downstream switch valve is provided on the downstream pipeline, and an upstream switch valve is provided on the upstream pipeline.

4. The magnetic transmission high-pressure reactor according to claim 1, characterized in that: A check valve is provided on the downstream pipeline.

5. The magnetic transmission high-pressure reactor according to any one of claims 1 to 4, characterized in that: The agitator shaft bearing includes an upper bearing and a lower bearing spaced apart from each other. The refueling port includes an upper refueling port corresponding to the upper bearing and a lower refueling port corresponding to the lower bearing. There are two refueling lines, one of which is connected to the upper refueling port, and the other is connected to the lower refueling port.

6. Agitator shaft bearing oiling device, characterized by: The magnetic transmission high-pressure reactor also includes an agitator shaft bearing refueling device, which includes a lubricating oil tank and a refueling pipeline connected between the lubricating oil tank and the refueling port. A quantitative refueling valve is provided on the refueling pipeline, and a refueling pump is provided between the lubricating oil tank and the quantitative refueling valve. The refueling pipeline between the quantitative refueling valve and the refueling port is a downstream pipeline, and a downstream pressure measuring device is provided on the downstream pipeline. The refueling pipeline between the quantitative refueling valve and the lubricating oil tank is an upstream pipeline, and an upstream pressure measuring device is provided on the upstream pipeline. A return oil pipeline is also provided between the upstream pipeline and the lubricating oil tank, and an overflow valve is provided on the return oil pipeline.

7. The stirring shaft bearing oiling device according to claim 6, characterized in that: The quantitative refueling valve is a normally closed quantitative refueling valve.

8. The stirring shaft bearing oiling device according to claim 6, characterized in that: A downstream switch valve is provided on the downstream pipeline, and an upstream switch valve is provided on the upstream pipeline.

9. The stirring shaft bearing oiling device according to claim 6, characterized in that: A check valve is provided on the downstream pipeline.

10. The stirring shaft bearing oiling device according to any one of claims 6 to 9, characterized in that: The agitator shaft bearing includes an upper bearing and a lower bearing spaced apart from each other. The refueling port includes an upper refueling port corresponding to the upper bearing and a lower refueling port corresponding to the lower bearing. There are two refueling lines, one of which is connected to the upper refueling port, and the other is connected to the lower refueling port.

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