Multi-channel high-temperature all-metal sealing ball valve

Abstract

The utility model discloses a multi-channel high-temperature all-metal sealing ball valve in the technical field of ball valve components, which comprises a ball valve body, four groups of discharge pipes are arranged on the side wall of the ball valve body in a cross-shaped manner, an inlet pipe is vertically arranged at the bottom of the ball valve body, and flange plates are mounted at the outer ends of the inlet pipe and the four groups of discharge pipes through threads. Four sets of supporting sleeves are welded to the top of the ball valve body in a rectangular array mode, and a valve rod sleeve is vertically welded to the middle of the top of the ball valve body. Transmission adjustment is conducted through mutual meshing of a transmission gear and an adjusting gear, and the contact area between the transmission gear and the adjusting gear is small; and meanwhile, the supporting side plates are connected with the adjusting shaft rod through the bearings, the contact area is also small, heat conduction is reduced, the phenomenon that the temperature on the adjusting wheel is high is avoided, and the phenomenon that workers are scalded when the flow direction is adjusted is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of ball valve components, in particular to a multi-channel high-temperature all-metal sealing ball valve. Background Art

[0002] In my country, ball valves are widely used in oil refining, long-distance pipelines, chemicals, papermaking, pharmaceuticals, water conservancy, electricity, municipal administration, steel and other industries, and they play an important role in the national economy. It has a 90-degree rotation action, the plug body is a sphere, and there is a circular through hole or channel passing through its axis. Ball valves are mainly used in pipelines to cut off, distribute and change the flow direction of the medium. It only needs to rotate 90 degrees and a very small torque to close tightly. Ball valves are most suitable for use as switches and cut-off valves.

[0003] The regulating valve stem of the existing multi-channel high-temperature metal-sealed ball valve is usually directly connected to the inner valve stem. Since the transported liquid is a high-temperature liquid, the heat conduction of the metal is relatively fast. The staff is easily scalded due to the high temperature on the regulating valve stem when adjusting. Based on this, the utility model designs a multi-channel high-temperature all-metal sealed ball valve to solve the above problem. Utility Model Content

[0004] The utility model aims to provide a multi-channel high-temperature all-metal sealed ball valve to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a multi-channel high-temperature all-metal sealed ball valve, including a ball valve body, the side wall of the ball valve body is cross-arranged with four groups of discharge pipes, the bottom of the ball valve body is vertically provided with an inlet pipe, and the outer ends of the inlet pipe and the four groups of discharge pipes are threadedly installed with flanges, the top of the ball valve body is formed with four groups of support sleeves welded in a rectangular arrangement, the top middle of the ball valve body is vertically welded with a valve stem sleeve, and the four groups of support sleeves are evenly distributed around the valve stem sleeve, the inner cavity of the valve stem sleeve is vertically installed with a ball valve stem, and the inner cavity of the support sleeve is vertically installed with a flange through a thread. A positioning screw is installed, and a sealing cover is horizontally installed between the top of the valve stem sleeve and the four groups of positioning screws, and the sealing cover is sleeved on the outer wall of the ball valve stem. A clamping nut is installed at the top of the positioning screw, and the bottom of the clamping nut is in contact with the top of the sealing cover. A transmission gear is fixed to the top of the ball valve stem through a nut. A supporting side plate is vertically welded to the top of one group of the discharge pipes, and an adjusting shaft is horizontally installed on the side wall of the supporting side plate. An adjusting gear is fixed to one end of the adjusting shaft through a nut, and the adjusting gear and the transmission gear are meshed with each other. An adjusting wheel is fixed to the other end of the adjusting shaft through a bolt.

[0006] Preferably, the outer end side walls of the discharge pipe and the inlet pipe are provided with external threads, and the inner cavity side wall of the flange is provided with internal threads.

[0007] Preferably, the connection between the valve stem sleeve and the ball valve stem and the connection between the sealing cover and the ball valve stem are both provided with high temperature resistant graphene sealing rings, and the four corners of the sealing cover are provided with positioning holes that cooperate with the positioning screws.

[0008] Preferably, a screw matching with a nut is welded on the top of the ball valve stem and the connecting end of the adjusting shaft and the adjusting gear, and a mounting socket matching with a bolt is provided in the middle of the transmission gear and the adjusting gear.

[0009] Preferably, a side wall of the supporting side plate is provided with a limiting shaft hole matched with the adjusting shaft rod, and a wear-resistant bearing is installed at the connection between the limiting shaft hole and the adjusting shaft rod.

[0010] Preferably, a fixing sleeve is provided at the connection between the adjusting wheel and the adjusting shaft, and the ends of the fixing sleeve and the adjusting shaft are both provided with fixing sockets matched with bolts, and the outer wall of the adjusting wheel is wrapped with an asbestos insulation pad.

[0011] Compared with the prior art, the beneficial effects of the utility model are: the adjustment method of the utility model is to perform transmission adjustment through the mutual engagement of the transmission gear and the adjustment gear, and the contact area between the transmission gear and the adjustment gear is small. At the same time, the supporting side plate and the adjustment shaft rod are connected through bearings, and the contact area is also small, which reduces heat conduction, thereby avoiding the phenomenon of high temperature on the adjustment wheel and reducing the phenomenon of burns to staff when adjusting the flow direction.

[0012] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0014] Figure 1 This is the front view axonometric drawing of the utility model;

[0015] Figure 2 This is an enlarged view of part A of the utility model;

[0016] Figure 3 This is a rear axonometric view of the utility model;

[0017] Figure 4 This is an enlarged view of part B of the utility model.

[0018] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0019] 1-ball valve body, 2-discharge pipe, 3-inlet pipe, 4-flange, 5-support sleeve, 6-stem sleeve, 7-ball valve stem, 8-positioning screw, 9-sealing gland, 10-pressure nut, 11-transmission gear, 12-support side plate, 13-adjusting shaft, 14-adjusting gear, 15-adjusting wheel. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-4 The utility model provides a technical solution: a multi-channel high-temperature all-metal sealed ball valve, comprising a ball valve body 1, the side wall of the ball valve body 1 is cross-arranged with four groups of discharge pipes 2, the bottom of the ball valve body 1 is vertically provided with an inlet pipe 3, and the outer ends of the inlet pipe 3 and the four groups of discharge pipes 2 are threadedly installed with flanges 4, the outer end side walls of the discharge pipe 2 and the inlet pipe 3 are provided with external threads, and the inner cavity side wall of the flange 4 is provided with internal threads, so as to facilitate the installation and removal of the flange 4;

[0022] Four groups of support sleeves 5 are welded in a rectangular arrangement on the top of the ball valve body 1, a valve stem sleeve 6 is vertically welded in the middle of the top of the ball valve body 1, and the four groups of support sleeves 5 are evenly distributed around the valve stem sleeve 6, a ball valve stem 7 is vertically installed in the inner cavity of the valve stem sleeve 6, a positioning screw 8 is vertically installed in the inner cavity of the support sleeve 5 through a thread, a sealing gland 9 is horizontally installed between the top of the valve stem sleeve 6 and the four groups of positioning screws 8, and the sealing gland 9 is sleeved on the outer wall of the ball valve stem 7, and a high-temperature resistant graphene sealing ring is provided at the connection between the valve stem sleeve 6 and the ball valve stem 7 and at the connection between the sealing gland 9 and the ball valve stem 7 to improve the sealing performance of the connection between the valve stem sleeve 6 and the ball valve stem 7 and at the connection between the sealing gland 9 and the ball valve stem 7, and the four corners of the sealing gland 9 are provided with positioning jacks that match the positioning screws 8 to facilitate the positioning and installation of the sealing gland 9;

[0023] A clamping nut 10 is installed at the top of the positioning screw 8, and the bottom of the clamping nut 10 is in conflict with the top of the sealing gland 9. A transmission gear 11 is fixed to the top of the ball valve stem 7 through a nut. A support side plate 12 is vertically welded to the top of one group of discharge pipes 2, and an adjusting shaft rod 13 is horizontally installed on the side wall of the support side plate 12. A limiting shaft hole matching the adjusting shaft rod 13 is opened on the side wall of the support side plate 12, and a wear-resistant bearing is installed at the connection between the limiting shaft hole and the adjusting shaft rod 13 to reduce the rotational wear between the support side plate 12 and the adjusting shaft rod 13;

[0024] An adjusting gear 14 is fixed to one end of the adjusting shaft 13 through a nut, and the adjusting gear 14 is meshed with the transmission gear 11. A screw matching the nut is welded to the top of the ball valve stem 7 and the connecting end of the adjusting shaft 13 and the adjusting gear 14, and the middle of the transmission gear 11 and the adjusting gear 14 are provided with mounting sockets matching the bolts. An adjusting wheel 15 is fixed to the other end of the adjusting shaft 13 through bolts. A fixing sleeve is provided at the connection between the adjusting wheel 15 and the adjusting shaft 13, and the ends of the fixing sleeve and the adjusting shaft 13 are provided with fixing sockets matching the bolts. The outer wall of the adjusting wheel 15 is wrapped with an asbestos insulation pad. The adjustment method is to adjust the transmission through the mutual meshing of the transmission gear 11 and the adjusting gear 14, and the contact area between the transmission gear 11 and the adjusting gear 14 is small. At the same time, the supporting side plate 12 and the adjusting shaft 13 are connected through a bearing, and the contact area is also small, which reduces the conduction of heat, thereby avoiding the phenomenon of high temperature on the adjusting wheel 15 and reducing the phenomenon of scalding of the staff when adjusting the flow direction.

[0025] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0026] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A multi-channel high-temperature all-metal sealed ball valve, comprising a ball valve body (1), characterized in that: The side wall of the ball valve body (1) is provided with four groups of discharge pipes (2) arranged in a cross shape, the bottom of the ball valve body (1) is vertically provided with an inlet pipe (3), and the outer ends of the inlet pipe (3) and the four groups of discharge pipes (2) are all threadedly mounted with flanges (4), the top of the ball valve body (1) is welded with four groups of support sleeves (5) in a rectangular shape, the middle of the top of the ball valve body (1) is vertically welded with a valve stem sleeve (6), and the four groups of support sleeves (5) are evenly distributed around the valve stem sleeve (6), the inner cavity of the valve stem sleeve (6) is vertically mounted with a ball valve stem (7), the inner cavity of the support sleeve (5) is vertically mounted with a positioning screw (8) through a thread, and a horizontal gap is formed between the top of the valve stem sleeve (6) and the four groups of positioning screws (8). A sealing gland (9) is installed, and the sealing gland (9) is sleeved on the outer wall of the ball valve stem (7); a clamping nut (10) is installed on the top of the positioning screw (8), and the bottom of the clamping nut (10) contacts the top of the sealing gland (9); a transmission gear (11) is fixed to the top of the ball valve stem (7) through a nut; a support side plate (12) is vertically welded to the top of one group of the discharge pipes (2); an adjusting shaft (13) is horizontally installed on the side wall of the supporting side plate (12); an adjusting gear (14) is fixed to one end of the adjusting shaft (13) through a nut, and the adjusting gear (14) and the transmission gear (11) are meshed with each other; an adjusting wheel (15) is fixed to the other end of the adjusting shaft (13) through a bolt.

2. The multi-channel high-temperature all-metal sealing ball valve according to claim 1 is characterized in that: The outer end side walls of the discharge pipe (2) and the inlet pipe (3) are provided with external threads, and the inner cavity side wall of the flange (4) is provided with internal threads.

3. The multi-channel high-temperature all-metal sealing ball valve according to claim 1, characterized in that: The connection between the valve stem sleeve (6) and the ball valve stem (7) and the connection between the sealing gland (9) and the ball valve stem (7) are both provided with high temperature resistant graphene sealing rings, and the four corners of the sealing gland (9) are each provided with positioning holes that match the positioning screw (8).

4. The multi-channel high-temperature all-metal sealing ball valve according to claim 1, characterized in that: The top of the ball valve stem (7) and the connecting end of the adjusting shaft (13) and the adjusting gear (14) are both welded with a screw rod that matches a nut, and the middle of the transmission gear (11) and the adjusting gear (14) are both provided with a mounting socket that matches a bolt.

5. The multi-channel high-temperature all-metal sealing ball valve according to claim 1, characterized in that: The side wall of the supporting side plate (12) is provided with a limiting shaft hole matched with the adjusting shaft rod (13), and a wear-resistant bearing is installed at the connection between the limiting shaft hole and the adjusting shaft rod (13).

6. The multi-channel high-temperature all-metal sealing ball valve according to claim 1, characterized in that: A fixing sleeve is provided at the connection between the adjusting wheel (15) and the adjusting shaft (13), and the ends of the fixing sleeve and the adjusting shaft (13) are both provided with fixing sockets matched with bolts, and the outer wall of the adjusting wheel (15) is wrapped with an asbestos heat insulation pad.

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