Fixed hard sealing kettle bottom ball valve

Abstract

The utility model discloses a fixed type hard sealing kettle bottom ball valve, which comprises a main valve body, a side valve body, a ball body and an actuator, the side valve body is connected with the main valve body through a bolt, a valve cavity is arranged between the side valve body and the main valve body, the ball body is rotatably arranged in the valve cavity, the main valve body and the side valve body are respectively provided with a valve seat, and the actuator is arranged on the valve seat. The valve seat abuts against the ball through a disc spring, an upper shaft sleeve and a lower shaft sleeve are arranged on the main valve body and connected with the side valve bodies respectively, an inlet channel is formed in the main valve body, a front shaft connected with the ball is arranged in the upper shaft sleeve, a first bevel gear is arranged at the end of the front shaft, and a second bevel gear is arranged at the end of the lower shaft sleeve. A frame body is installed on the upper shaft sleeve, an actuator is arranged on the frame body, and a second bevel gear in meshing transmission with the first bevel gear is arranged on an output shaft of the actuator. Therefore, the technical effects of small occupied space and convenience and reliability in maintenance are realized.

Description

Technical Field

[0001] The utility model relates to a ball valve, in particular to a fixed hard-sealed kettle bottom ball valve. Background Art

[0002] The bottom ball valve is usually installed at the bottom of the reactor or storage tank to control the flow of liquid. It is also called a bottom valve. Its main function is to isolate and control the flow of liquid between the top opening of the reactor and the outlet of the bottom of the reactor.

[0003] Ordinary kettle bottom ball valves flow from the side valve body to the main valve body. The disadvantage of this is that the entire ball valve needs to be removed for maintenance, which is cumbersome. At the same time, the actuators used to operate the ball valves are installed vertically, which takes up a lot of space and cannot reserve enough space for the insulation layer. Utility Model Content

[0004] In order to solve the above problems, the purpose of the utility model is to provide a fixed hard-sealed kettle bottom ball valve which occupies a small space and is convenient and reliable for maintenance.

[0005] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a fixed hard-sealed kettle bottom ball valve, comprising a main valve body, a side valve body, a ball and an actuator, the side valve body being connected to the main valve body by bolts, a valve cavity being arranged between the side valve body and the main valve body, the ball being rotatably installed in the valve cavity, the main valve body and the side valve body being respectively provided with valve seats, the valve seats being abutted against the ball by disc springs, an upper shaft sleeve and a lower shaft sleeve being arranged on the main valve body, the upper shaft sleeve and the lower shaft sleeve being respectively connected to the side valve body, an inlet channel being arranged on the main valve body, a front shaft connected to the ball being arranged in the upper shaft sleeve, a first bevel gear being arranged at the end of the front shaft, a frame being installed on the upper shaft sleeve, an actuator being arranged on the frame, a second bevel gear being meshed and driven with the first bevel gear being arranged on the output shaft of the actuator

[0006] The actuator is a rotary cylinder.

[0007] A rear axle connected to the ball is arranged in the lower sleeve, a rear cover is installed at the end of the lower sleeve, and a sealing filler is arranged between the front axle and the upper sleeve. The lower part of a pressure cover is inserted through the frame and inserted into the upper sleeve to abut against the sealing filler. The pressure cover is provided with an end cap, which is threadedly connected to the end face of the upper sleeve through screws passing through the frame.

[0008] The beneficial effects of the utility model are: 1. Since the main valve body is provided with an inlet channel, the medium flows from the direction of the main valve body to the direction of the side valve body, so that it is not necessary to dismantle the entire ball valve, and only the side valve body needs to be dismantled, and the valve can still seal the bottom of the kettle, meeting the customer's online maintenance requirements; 2. This product uses two bevel gears to side-mount the actuator that should be placed on the top, thereby saving on-site space and reserving space for making an insulation layer for a reactor on site; thus, the technical effects of small space occupation and convenient and reliable maintenance are achieved.

[0009] The utility model is further described below in conjunction with the accompanying drawings and specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a structural diagram of a specific implementation method of the utility model. DETAILED DESCRIPTION

[0011] The present invention is specifically described below through embodiments, which are only used to further illustrate the present invention and should not be construed as limiting the protection scope of the present invention.

[0012] like Figure 1 As shown, this embodiment discloses a fixed hard-sealed kettle bottom ball valve, comprising a main valve body 1, a side valve body 2, a ball 3 (that is, a valve core) and an actuator 4. The side valve body 2 is connected to the main valve body 1 by bolts, a valve cavity is provided between the side valve body 2 and the main valve body 1, and the ball 3 is rotatably installed in the valve cavity. The main valve body 1 and the side valve body 2 are respectively provided with valve seats 5, and the valve seats 5 are abutted on the ball 3 through a disc spring 50. An upper shaft sleeve 11 and The lower sleeve 12, the upper sleeve 11 and the lower sleeve 12 are respectively connected to the side valve body 2, the main valve body 1 is provided with an inlet channel 13, the upper sleeve 11 is provided with a front shaft 6 connected to the ball 3, the end of the front shaft 6 is provided with a first bevel gear 8, the upper sleeve 11 is installed with a frame 10, the frame 10 is provided with an actuator 4, the output shaft of the actuator 4 is provided with a second bevel gear 9 meshing with the first bevel gear 8, wherein the actuator 4 is a rotary cylinder.

[0013] The rear shaft 7 connected to the ball 3 is arranged in the lower sleeve 12, and the rear cover 20 is installed at the end of the lower sleeve 12. A sealing packing 30 is also arranged between the front shaft 6 and the upper sleeve 11. The lower part of a gland 40 passes through the frame 10 and is inserted into the upper sleeve 11 to abut against the sealing packing 30. The gland 40 has an end cap, which passes through the frame 10 and is threadedly connected to the end face of the upper sleeve 11. This structure can make the rotation and sealing performance of the ball 3 more reliable.

[0014] By adopting the above technical scheme, 1. Since the inlet channel 13 is provided on the main valve body 1, the medium flows from the direction of the main valve body 1 to the direction of the side valve body 2. In this way, it is possible to remove the side valve body 2 without removing the entire ball valve, and the valve can still seal the bottom of the kettle, meeting the customer's online maintenance requirements; 2. This product uses two bevel gears to side-mount the actuator 4 that should be placed on the top, thereby saving on-site space and reserving space for the insulation layer of the reactor on site; in this way, the technical effect of occupying a small space and being convenient and reliable for maintenance is achieved.

[0015] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0016] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A fixed hard-sealed kettle bottom ball valve, comprising a main valve body, a side valve body, a ball and an actuator, wherein the side valve body is connected to the main valve body by bolts, a valve cavity is provided between the side valve body and the main valve body, and the ball is rotatably installed in the valve cavity, characterized in that: The main valve body and the side valve body are respectively provided with valve seats, the valve seats are abutted against the ball through disc springs, the main valve body is provided with an upper sleeve and a lower sleeve, the upper sleeve and the lower sleeve are respectively connected to the side valve body, the main valve body is provided with an inlet channel, a front shaft connected to the ball is provided in the upper sleeve, a first bevel gear is arranged at the end of the front shaft, a frame is installed on the upper sleeve, an actuator is arranged on the frame, and a second bevel gear meshing with the first bevel gear is arranged on the output shaft of the actuator.

2. The fixed hard-sealed kettle bottom ball valve according to claim 1 is characterized in that: The actuator is a rotary cylinder.

3. The fixed hard-sealed kettle bottom ball valve according to claim 1 is characterized in that: A rear axle connected to the ball is arranged in the lower sleeve, a rear cover is installed at the end of the lower sleeve, and a sealing filler is arranged between the front axle and the upper sleeve. The lower part of a pressure cover is inserted through the frame and inserted into the upper sleeve to abut against the sealing filler. The pressure cover is provided with an end cap, which is threadedly connected to the end face of the upper sleeve through screws passing through the frame.

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