Welded jacketed thermostatic ball valve

Abstract

The utility model belongs to the technical field of ball valve, and disclose a kind of welded jacket heat preservation ball valve, including valve body, the inside movable mounting of valve body has spherical valve core, the spherical valve core rotates relative to valve body, the middle part fixed mounting of valve body top end has fixed pipe, the left and right ends of valve body are uniformly fixed with water inlet, the middle part of spherical valve core is equipped with fluid passage, when fluid passage rotates to correspond with water inlet, the inside of fluid passage and water inlet is connected, the top end fixed mounting of spherical valve core has valve rod. The utility model is through setting up sealing ring and oil storage ring, and through the rotation process when device opening, so that oil hole and oil inlet hole correspond to each other, automatically export lubricating oil by corresponding process, realize self-lubricating, entire self-lubricating process can be automatically completed when opening each time, without manual auxiliary completion, by each self-lubricating, improve the lubricating degree of valve rod rotation, improve practicability.

Description

Technical Field

[0001] This utility model belongs to the field of ball valve technology, specifically a welded jacketed insulated ball valve. Background Technology

[0002] The welded jacketed insulated ball valve is a type of valve that combines the functions of a ball valve with a jacketed insulation structure. It is primarily used in pipeline systems where maintaining a stable fluid temperature is crucial. Its design features an external insulation jacket, through which hot water, steam, or other insulating media can be circulated. This prevents the fluid in the pipeline from condensing or freezing due to excessively low temperatures, while simultaneously maintaining fluid flow. This valve is particularly suitable for high-temperature or low-temperature fluid transport systems in industries such as chemical, petroleum, and food processing.

[0003] Conventional insulated ball valves are mainly controlled by a handle to rotate the valve stem. The rotation of the valve stem directly drives the ball valve core at the bottom to rotate, thus opening and closing the channel. In actual use, this opening method has a certain risk of misoperation, that is, misoperation of the handle can cause accidental opening and closing. The safety redundancy is low and it is in urgent need of improvement. Utility Model Content

[0004] The purpose of this invention is to provide a welded jacketed insulated ball valve to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a welded jacketed insulated ball valve, comprising a valve body, a spherical valve core movably installed inside the valve body, the spherical valve core rotating relative to the valve body, a fixed pipe fixedly installed at the middle of the top of the valve body, water inlets fixedly connected to both the left and right ends of the valve body, a fluid channel opened in the middle of the spherical valve core, when the fluid channel rotates to correspond with the water inlet, the fluid channel and the water inlet are connected internally, a valve stem fixedly installed at the top of the spherical valve core, the valve stem passing through the top of the fixed pipe and fixedly installed with a self-separating component, a handle fixedly installed at the top of the self-separating component, an oil reservoir ring installed at the top of the fixed pipe by a snap fastener, the oil reservoir ring being located on the outer side of the valve stem, and the interior of the oil reservoir ring being filled with lubricating oil; When the throttle is pressed down, it drives the self-separating component to lock with the valve stem, thereby causing the spherical valve core to rotate.

[0006] When the valve stem rotates, it drives the ball valve core at the bottom to rotate. At this time, the fluid passage opened on the ball valve core rotates accordingly. When the fluid passage rotates to correspond with the water inlet, the fluid passage is opened, and the fluid can be conducted through the water inlet and the fluid passage. Conversely, the fluid transmission passage can be closed.

[0007] As a further technical solution of this utility model, a lower sealing ring located on the bottom wall of the inner wall of the fixed tube is fixedly sleeved at the bottom of the outer side of the valve stem, and an upper sealing ring located on the top wall of the inner wall of the fixed tube is fixedly sleeved at the top of the outer side of the valve stem. The upper sealing ring and the lower sealing ring respectively seal the upper and lower ends of the fixed tube.

[0008] As a further technical solution of this utility model, an oil filling hole is provided on one side of the oil storage ring for adding lubricating oil. Symmetrical oil delivery holes are provided at the bottom end of the oil storage ring and the top end of the fixing tube. A fully penetrating oil inlet hole is symmetrically provided at the top end of the upper sealing ring.

[0009] As a further technical solution of this utility model, when the fluid channel and the water inlet correspond to each other, that is, when the device is in the channel open state, the oil inlet and the oil outlet are intertwined, and the lubricating oil inside the oil storage ring cannot enter the interior of the fixed pipe. When the oil inlet is rotated to be directly below the oil outlet, the lubricating oil inside the oil storage ring enters the interior of the fixed pipe through the oil outlet and the oil inlet.

[0010] When the device is in normal conduction state, the oil inlet does not correspond to the oil delivery hole, and the lubricating oil inside the oil reservoir ring cannot enter the interior of the fixed pipe. When the valve stem rotates, it can synchronously drive the upper sealing ring to rotate, and the oil inlet moves accordingly. When the oil inlet moves to correspond to the oil delivery hole, the lubricating oil inside the oil reservoir ring is then discharged through the oil delivery hole and the oil inlet hole and enters the interior of the fixed pipe, so that it contacts the valve stem and completes self-lubrication.

[0011] By setting an upper sealing ring and an oil reservoir ring, and through the rotation process when the device is turned on, the oil delivery hole and the oil inlet hole correspond to each other. Through this correspondence process, the lubricating oil is automatically discharged, achieving self-lubrication. The entire self-lubrication process can be completed automatically each time the device is turned on, without the need for manual assistance. Through each self-lubrication, the lubrication of the valve stem rotation is improved, thus enhancing practicality.

[0012] As a further technical solution of this utility model, the self-separating component includes a connecting pipe, the bottom end of which is connected to the top end of the valve stem, a limiting plate is movably sleeved inside the connecting pipe, a limiting rod is fixedly installed at the top end of the limiting plate, and the top end of the limiting rod passes through the top end of the fixed pipe and is fixedly installed with a top plate.

[0013] As a further technical solution of this utility model, a limiting spring is movably sleeved on the outer side of the limiting rod, and the upper and lower ends of the limiting spring are respectively connected to the inner top wall of the fixed tube and the top end of the limiting plate. An extension sleeve is fixedly sleeved on the top end of the outer side of the connecting tube.

[0014] As a further technical solution of this utility model, positioning sleeves are installed on both sides of the bottom end of the top plate, and positioning shafts located directly below the positioning sleeves are installed on both sides of the top end of the extension sleeve. When the limiting spring is in the initial state, the positioning sleeves are not engaged with the positioning shafts. When the limiting spring is in the stretched state, the positioning sleeves are engaged with the positioning shafts.

[0015] When the valve stem needs to be rotated, press down on the top plate. At this time, the limit rod and limit plate move down, and the limit spring is stretched. Simultaneously, the positioning sleeve at the bottom of the top plate moves down until it engages with the positioning shaft. Once the engagement is complete, the top plate can be rotated to simultaneously rotate the fixed tube. The valve stem and ball valve core at the bottom then rotate, completing the operation. When not in operation, release the limit on the top plate. The limit spring automatically resets, causing the positioning sleeve to disengage from the positioning shaft, thus releasing the lock and preventing accidental operation.

[0016] By utilizing the cooperation between the self-separating component and the valve stem, the self-separating component and the valve stem need to be locked by pressing down when operating the valve stem. When not operated, the locking is automatically released, avoiding the risk of accidental operation when not in operation. This can effectively prevent abnormal opening and closing of the pipeline due to accidental operation and improve safety redundancy.

[0017] The beneficial effects of this utility model are as follows: (1) This utility model sets up an upper sealing ring and an oil storage ring, and through the rotation process when the device is turned on, the oil delivery hole and the oil inlet hole correspond to each other. Through the correspondence process, the lubricating oil is automatically discharged, achieving self-lubrication. The entire self-lubrication process can be completed automatically each time it is turned on, without the need for manual assistance. Through each self-lubrication, the lubrication of the valve stem rotation is improved, thus improving practicality.

[0018] (2) This utility model utilizes the cooperation between the self-separating component and the valve stem, so that when operating the valve stem, a downward pressing action is required to lock the self-separating component and the valve stem. When not operating, the locking is automatically released, avoiding the risk of misoperation when not operating. It can effectively avoid the abnormal opening and closing of the pipeline caused by misoperation and improve safety redundancy. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a cross-sectional view of a partial structure of the present invention; Figure 3 This is a partial cross-sectional view of the present invention from another perspective; Figure 4 This is a schematic diagram showing the concealed valve body and spherical valve core of this utility model. Figure 5 This is a separate schematic diagram of the self-separating component structure of this utility model; Figure 6 This is a partial cross-sectional view of the self-separating component structure of this utility model.

[0020] In the diagram: 1. Valve body; 2. Ball valve core; 3. Fluid passage; 4. Water inlet; 5. Fixed pipe; 6. Valve stem; 7. Upper sealing ring; 8. Lower sealing ring; 9. Oil inlet; 10. Oil reservoir ring; 11. Oil delivery hole; 12. Throttle; 13. Self-separating assembly; 131. Connecting pipe; 132. Limiting plate; 133. Limiting rod; 134. Extension sleeve; 135. Top plate; 136. Positioning sleeve; 137. Positioning shaft; 138. Limiting spring. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] like Figures 1 to 6 As shown in the embodiment of this utility model, a welded jacketed heat-insulating ball valve includes a valve body 1, a spherical valve core 2 is movably installed inside the valve body 1, the spherical valve core 2 rotates relative to the valve body 1, a fixed pipe 5 is fixedly installed in the middle of the top of the valve body 1, and water inlets 4 are fixedly connected to both the left and right ends of the valve body 1, a fluid channel 3 is opened in the middle of the spherical valve core 2, when the fluid channel 3 rotates to correspond to the water inlet 4, the fluid channel 3 and the water inlet 4 are connected internally, a valve stem 6 is fixedly installed at the top of the spherical valve core 2, the valve stem 6 passes through the top of the fixed pipe 5 and is fixedly installed with a self-separating component 13, a handle 12 is fixedly installed at the top of the self-separating component 13, and an oil storage ring 10 is installed at the top of the fixed pipe 5 by a snap fastener, the oil storage ring 10 is located on the outer side of the valve stem 6, and the inside of the oil storage ring 10 is filled with lubricating oil; When the throttle 12 is pressed down, it drives the self-separating assembly 13 to lock with the valve stem 6, thereby causing the ball valve core 2 to rotate.

[0023] When the valve stem 6 rotates, it can drive the ball valve core 2 at the bottom to rotate. At this time, the fluid channel 3 opened on the ball valve core 2 will rotate accordingly. When the fluid channel 3 rotates to correspond with the water inlet 4, the fluid channel is opened and the fluid can be conducted through the water inlet 4 and the fluid channel 3. Conversely, the fluid transmission channel can be closed.

[0024] like Figure 1 and Figure 2 as well as Figure 3As shown, a lower sealing ring 8 is fixedly sleeved on the bottom of the outer side of the valve stem 6, located on the bottom wall of the inner wall of the fixed pipe 5. An upper sealing ring 7 is fixedly sleeved on the top of the outer side of the valve stem 6, located on the top wall of the inner wall of the fixed pipe 5. The upper sealing ring 7 and the lower sealing ring 8 seal the upper and lower ends of the fixed pipe 5 respectively. An oil filling hole is provided on one side of the oil storage ring 10 for adding lubricating oil. The bottom of the oil storage ring 10 and the top of the fixed pipe 5 are provided with symmetrical oil delivery holes 11. The top of the upper sealing ring 7 is symmetrically provided with fully penetrating oil inlet holes 9. When the fluid channel 3 corresponds to the water inlet 4, that is, when the device is in the channel open state, the oil inlet hole 9 and the oil delivery hole 11 are intersected, and the lubricating oil inside the oil storage ring 10 cannot enter the interior of the fixed pipe 5. When the oil inlet hole 9 is rotated to be directly below the oil delivery hole 11, the lubricating oil inside the oil storage ring 10 enters the interior of the fixed pipe 5 through the oil delivery hole 11 and the oil inlet hole 9.

[0025] When the device is in normal conduction state, the oil inlet 9 does not correspond to the oil delivery hole 11, and the lubricating oil inside the oil storage ring 10 cannot enter the interior of the fixed pipe 5. When the valve stem 6 rotates, it can synchronously drive the upper sealing ring 7 to rotate. At this time, the oil inlet 9 is displaced accordingly. When the oil inlet 9 is displaced to correspond to the oil delivery hole 11, the lubricating oil inside the oil storage ring 10 is then discharged through the oil delivery hole 11 and the oil inlet 9 and enters the interior of the fixed pipe 5, so that it contacts the valve stem 6 and completes self-lubrication.

[0026] By setting an upper sealing ring 7 and an oil storage ring 10, and through the rotation process when the device is turned on, the oil delivery hole 11 and the oil inlet hole 9 correspond to each other. Through the correspondence process, the lubricating oil is automatically discharged, achieving self-lubrication. The entire self-lubrication process can be completed automatically each time the device is turned on, without the need for manual assistance. Through each self-lubrication, the lubrication of the valve stem 6 rotation is improved, thus enhancing practicality.

[0027] like Figure 2 and Figure 5 as well as Figure 6As shown, the self-separating assembly 13 includes a connecting pipe 131. The bottom end of the connecting pipe 131 is connected to the top end of the valve stem 6. A limiting plate 132 is movably sleeved inside the connecting pipe 131. A limiting rod 133 is fixedly installed at the top end of the limiting plate 132. The top end of the limiting rod 133 passes through the top end of the connecting pipe 131 and is fixedly installed with a top plate 135. A limiting spring 138 is movably sleeved on the outer side of the limiting rod 133. The upper and lower ends of the limiting spring 138 are respectively connected to the inner top wall of the connecting pipe 131 and the limiting plate. The top end of 132 is connected, and the top end of the outer side of the connecting tube 131 is fixedly sleeved with an extension sleeve 134. Positioning sleeves 136 are installed on both sides of the bottom end of the top plate 135. Positioning shafts 137 located directly below the positioning sleeves 136 are installed on both sides of the top end of the extension sleeves 134. When the limiting spring 138 is in the initial state, the positioning sleeves 136 are not movablely engaged with the positioning shafts 137. When the limiting spring 138 is in the stretched state, the positioning sleeves 136 and the positioning shafts 137 are movablely engaged.

[0028] When the valve stem 6 needs to be rotated, the top plate 135 can be pressed down. At this time, the limiting rod 133 and the limiting plate 132 move down, and the limiting spring 138 is stretched. At the same time, the positioning sleeve 136 at the bottom of the top plate 135 moves down until the positioning sleeve 136 and the positioning shaft 137 are engaged. After the two are engaged, the top plate 135 can be rotated to drive the connecting pipe 131 to rotate synchronously. At this time, the valve stem 6 and the ball valve core 2 at the bottom rotate accordingly, completing the operation process. When not operating, the limiting of the top plate 135 is released, the limiting spring 138 automatically resets, and the positioning sleeve 136 is disengaged from the positioning shaft 137, thus releasing the locking process and avoiding accidental operation.

[0029] By utilizing the cooperation between the self-separating component 13 and the valve stem 6, a downward pressing action is required when operating the valve stem 6 to lock the self-separating component 13 and the valve stem 6. When not operated, the locking is automatically released, avoiding the risk of misoperation when not in operation. This can effectively prevent abnormal opening and closing of the pipeline due to misoperation and improve safety redundancy.

[0030] Working principle and usage process: When the valve stem 6 needs to be rotated, the top plate 135 can be pressed down. At this time, the limiting rod 133 and the limiting plate 132 move down, and the limiting spring 138 is stretched. At the same time, the positioning sleeve 136 at the bottom of the top plate 135 moves down until the positioning sleeve 136 and the positioning shaft 137 are engaged. After the two are engaged, the top plate 135 can be rotated to drive the connecting pipe 131 to rotate synchronously. At this time, the valve stem 6 and the ball valve core 2 at the bottom rotate accordingly to complete the operation. When not operating, the limiting of the top plate 135 is released, the limiting spring 138 automatically resets, and the positioning sleeve 136 is disengaged from the positioning shaft 137 to release the locking process and avoid accidental operation. When the device is in normal conduction state, the oil inlet 9 does not correspond to the oil delivery 11, and the lubricating oil inside the oil storage ring 10 cannot enter the interior of the fixed pipe 5. When the valve stem 6 rotates, it can synchronously drive the upper sealing ring 7 to rotate. At this time, the oil inlet 9 is displaced. When the oil inlet 9 is displaced to correspond to the oil delivery 11, the lubricating oil inside the oil storage ring 10 is discharged through the oil delivery 11 and the oil inlet 9 and enters the interior of the fixed pipe 5, so that it contacts the valve stem 6 and completes self-lubrication. When the valve stem 6 rotates, it can drive the ball valve core 2 at the bottom to rotate. At this time, the fluid channel 3 opened on the ball valve core 2 will rotate accordingly. When the fluid channel 3 rotates to correspond with the water inlet 4, the fluid channel is opened and the fluid can be conducted through the water inlet 4 and the fluid channel 3. Conversely, the fluid transmission channel can be closed.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A welded jacketed insulated ball valve, comprising a valve body (1), characterized in that: A spherical valve core (2) is movably installed inside the valve body (1). The spherical valve core (2) rotates relative to the valve body (1). A fixed pipe (5) is fixedly installed in the middle of the top of the valve body (1). Water inlets (4) are fixedly connected to both the left and right ends of the valve body (1). A fluid channel (3) is opened in the middle of the spherical valve core (2). When the fluid channel (3) rotates to correspond to the water inlet (4), the fluid channel (3) and the water inlet (4) are connected internally. A valve stem (6) is fixedly installed at the top of the spherical valve core (2). The valve stem (6) passes through the top of the fixed pipe (5) and is fixedly installed with a self-separating component (13). A throttle (12) is fixedly installed at the top of the self-separating component (13). An oil storage ring (10) is installed at the top of the fixed pipe (5) by a snap-fit. The oil storage ring (10) is located on the outer side of the valve stem (6). The oil storage ring (10) is filled with lubricating oil. When the throttle (12) is pressed down, it drives the self-separating assembly (13) to lock with the valve stem (6), thereby rotating the ball valve core (2).

2. The welded jacketed insulated ball valve according to claim 1, characterized in that: The bottom end of the outer side of the valve stem (6) is fixedly sleeved with a lower sealing ring (8) located on the inner bottom wall of the fixed tube (5), and the top end of the outer side of the valve stem (6) is fixedly sleeved with an upper sealing ring (7) located on the inner top wall of the fixed tube (5). The upper sealing ring (7) and the lower sealing ring (8) respectively seal the upper and lower ends of the fixed tube (5).

3. The welded jacketed insulated ball valve according to claim 2, characterized in that: The oil storage ring (10) has an oil filling hole on one side for adding lubricating oil. The bottom end of the oil storage ring (10) and the top end of the fixed tube (5) are provided with symmetrical oil delivery holes (11). The top end of the upper sealing ring (7) is symmetrically provided with fully penetrating oil inlet holes (9).

4. A welded jacketed insulated ball valve according to claim 3, characterized in that: When the fluid channel (3) corresponds to the water outlet (4), that is, when the device is in the channel open state, the oil inlet (9) and the oil outlet (11) are intersected. The lubricating oil inside the oil storage ring (10) cannot enter the interior of the fixed pipe (5). When the oil inlet (9) rotates to the position directly below the oil outlet (11), the lubricating oil inside the oil storage ring (10) enters the interior of the fixed pipe (5) through the oil outlet (11) and the oil inlet (9).

5. The welded jacketed insulated ball valve according to claim 1, characterized in that: The self-separating assembly (13) includes a connecting pipe (131), the bottom end of which is connected to the top end of the valve stem (6). A limiting plate (132) is movably sleeved inside the connecting pipe (131). A limiting rod (133) is fixedly installed at the top end of the limiting plate (132). The top end of the limiting rod (133) passes through the top end of the connecting pipe (131) and is fixedly installed with a top plate (135).

6. A welded jacketed insulated ball valve according to claim 5, characterized in that: The outer side of the limiting rod (133) is movably sleeved with a limiting spring (138). The upper and lower ends of the limiting spring (138) are respectively connected to the inner top wall of the connecting tube (131) and the top end of the limiting plate (132). An extension sleeve (134) is fixedly sleeved on the top end of the outer side of the connecting tube (131).

7. A welded jacketed insulated ball valve according to claim 6, characterized in that: Positioning sleeves (136) are installed on both sides of the bottom end of the top plate (135). Positioning shafts (137) located directly below the positioning sleeves (136) are installed on both sides of the top end of the extension sleeve (134). When the limiting spring (138) is in the initial state, the positioning sleeves (136) are not engaged with the positioning shafts (137). When the limiting spring (138) is in the stretched state, the positioning sleeves (136) and the positioning shafts (137) are engaged.

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