CN116428373B

CN116428373B - Quick core-changing valve for heat supply pipeline

Info

Publication number: CN116428373B
Application number: CN202310679034.7A
Authority: CN
Inventors: 符玉; 李雪明; 郑立静; 黄家伟; 张瑞娜
Original assignee: Xinxiang Yuhao Electromechanical Equipment Co ltd
Current assignee: Xinxiang Yuhao Electromechanical Equipment Co ltd
Priority date: 2023-06-09
Filing date: 2023-06-09
Publication date: 2023-08-15
Anticipated expiration: 2043-06-09
Also published as: CN116428373A

Abstract

The invention provides a quick core-changing valve for a heat supply pipeline, which comprises a valve seat assembly, a pipeline, a valve body, a movable connecting assembly and a driving assembly, wherein the valve seat assembly comprises a base, fixing flanges, transition pipes and a fixed pipe head, the two ends of the base are respectively connected with the fixing flanges, the fixing flanges are outwards connected with the transition pipes and inwards connected with the fixed pipe head, the movable connecting assembly comprises a movable pipe head and a movable flange, the end part of the movable pipe head is connected with the movable flange, the movable pipe head and the movable flange are sleeved on the outer side of the fixed pipe head, the driving assembly is used for driving the movable flange and the movable pipe head to move forwards along the axial direction at the end part of the fixed pipe head, the movable pipe head and the flange of the valve body are in butt joint fixation after moving forwards, and the driving assembly also controls the transition pipes to stop a water flow channel. The scheme of the invention ensures that the valve replacement process is simpler, more convenient and faster, and the replacement can be completed within a few seconds under the condition of skilled operation, thereby obviously reducing the operation difficulty and the safety risk.

Description

Quick core-changing valve for heat supply pipeline

Technical Field

The invention belongs to the technical field of improvement of heating pipeline valves, and particularly relates to a quick core-changing valve of a heating pipeline.

Background

In the long-term operation of the thermodynamic pipeline valve, due to the influence of factors such as fluid medium, pressure, temperature and the like, the internal parts of the valve can be worn, so that the valve performance is reduced. In order to ensure safe and stable operation of the piping system, worn valves need to be replaced periodically. Damage to the valve, such as leakage, jamming, etc., may occur due to external factors or improper operation. In this case, it is necessary to replace the damaged valve in time to prevent a more serious problem of the piping system. With the development of technology, new valves may have higher performance and better functionality. To increase the operating efficiency of the plumbing system, existing older valves may need to be replaced. In order to ensure proper operation of the thermodynamic piping system, maintenance checks need to be performed regularly. During this process, potential problems may be found, requiring valve replacement.

Traditional pipeline valve replacement processes are complicated, and the whole pipeline system needs to be disassembled, so that the time consumption is long, other parts can be damaged, and the maintenance cost and the system downtime are increased. Because the traditional valve replacement process involves a plurality of steps and parts, the operation difficulty is high, professional technicians are required to operate, and the labor cost is increased. In the conventional valve replacement process, the entire piping system needs to be disassembled, which may cause safety risks such as leakage. For example, chinese patent publication No. CN200963808Y provides a "valve changing tool" which is composed of a front support body and a rear support body, etc., two stop valves are provided at the front support body, one stop valve is provided at the rear support body, a piston rod is threaded on the front support body and the rear support body, and a flow direction conduit is provided between the front support body and the rear support body. In the working process, the front end pressure of the valve changing tool is communicated with the rear end of the oil cylinder through the guide pipe by the aid of the three stop valves, the front end pressure and the rear end pressure of the piston rod reach balance, and the piston rod is rotated to detach the valve core. The valve core can be disassembled by the valve changing tool, but the valve core comprises three stop valves, and in addition, the front support body is communicated with the rear support body through a guide pipe, so that the valve changing tool has a complex structure, the cost of the whole tool is relatively high, and the use is inconvenient. In addition, operators need to operate under severe environments such as high pressure, high temperature and the like, and a certain accident risk exists. The replacement period of the traditional valve is long, which may cause production interruption and affect production efficiency. In some emergency situations, too long a replacement cycle may result in severely impacted overall system operation. In the replacement process of the traditional valve, on-off control of a pipeline cannot be realized, which brings certain trouble to maintenance and overhaul of a pipeline system.

Disclosure of Invention

Aiming at the defects and problems existing in the prior art, the invention provides the quick core-changing valve for the heat supply pipeline, which not only improves the production efficiency, but also reduces the maintenance cost, and simultaneously ensures the operation safety.

The invention solves the technical problems by adopting the scheme that: the utility model provides a quick core valve of changing of heat supply pipeline, includes disk seat subassembly, pipeline and valve body, still including moving coupling assembling and drive assembly, disk seat subassembly include base, flange, transition pipe and decide the tube head, the flange is connected respectively at the both ends of base, each flange outwards connects the transition pipe, inwards connects decides the tube head, the coupling assembling of moving include and move the flange, the end connection who moves the tube head has a flange of moving, and move the tube head and move the flange suit in the outside of deciding the tube head, drive assembly is used for the drive move flange and move the tube head and move the end of tube head along the axial and move forward, move the back and the flange butt joint of valve body, drive assembly still simultaneously control the transition pipe and stop to the water flow channel.

Further, the middle part of the base is a groove, the valve body is arranged in the groove, the front end and the rear end of the base are respectively fixed with end walls, and the upper side of each end wall is respectively provided with the fixing flange.

Further, the other end of the transition pipe is connected with an outer flange which is fixedly connected with a pipeline flange of the pipeline.

Further, the drive assembly includes auxiliary valve plate, pivot, upset connecting rod and folding connecting rod, is located the left and right sides of disc auxiliary valve plate along radial extension there being the pivot, and the centre of a circle of auxiliary valve plate is crossed to this pivot is in the left and right sides of transition pipe is provided with the shaft hole and installs the axle sleeve simultaneously, auxiliary valve plate matches the suit in the transition pipe, the pivot matches the suit in corresponding shaft hole and axle sleeve the outer end vertical fixation of pivot has the upset connecting rod, and the end of both sides upset connecting rod is fixed with folding connecting rod, folding connecting rod with the laminating is matchd to the surface of transition pipe.

Further, the outer end of both sides pivot still is fixed with the flight, and the left and right sides of every flange is provided with outside convex stator lug respectively, and every stator lug is provided with runs through the strip hole move the both sides of flange have convex movable lug, both sides helical blade suit respectively in run through the strip downthehole, and support respectively move the internal surface of lug, when pressing down folding connecting rod makes the pivot degree of rotation after, the auxiliary valve plate becomes transversely by vertical, promptly by stopping to become unblocked, simultaneously, helical blade forward pushing moves the flange, makes each fixed column insert in the valve body flange downthehole that the valve body both sides correspond.

Further, a penetrating fixing assembly is arranged between the inner end face of each movable flange and the outer end face of the fixed flange, and the penetrating fixing assembly comprises penetrating fixing bolts or fixing columns.

Further, a rotary driving mechanism is arranged between the fixed flange and the movable flange to enable the fixed flange and the movable flange to be fixed, and the rotary driving mechanism is a tension spring or a wedge-shaped body assembly.

The scheme of the quick core-changing valve for the heat pipe enables the valve changing process to be simpler, more convenient and faster, and the valve can be changed within seconds under the condition of skilled operation, thereby reducing the operation difficulty and the safety risk in detail. In addition, the on-off control of the pipeline can be realized by the scheme, and the normal operation of a pipeline system is facilitated. Therefore, the hot pipe quick core-changing valve scheme is effectively improved and optimized in the prior art. The scheme has the following beneficial effects:

1. and (3) quick replacement: the scheme adopts a series of innovative designs such as a movable connecting component, a driving component and the like, so that the valve body can be replaced very rapidly. This greatly reduces downtime of the piping system, improving production efficiency and operational safety.

2. Simplifying the operation: by adopting the scheme, the valve body replacement operation can be simplified, and the whole pipeline system does not need to be disassembled. Through operating the drive assembly, the valve body is easily installed and detached, the operation difficulty is reduced, and the work load of staff is lightened.

3. The safety is improved: in the whole replacement process, the pipeline system does not need to be completely opened, and the leakage risk is avoided. In addition, the design of the sealing cover protects the driving assembly and reduces the accident risk caused by misoperation or other factors.

4. The cost is saved: because the valve body replacement process is quicker and simpler, the labor and time costs required for replacement can be reduced. In addition, as the whole pipeline system does not need to be disassembled in the replacement process, the risk that other parts can be damaged is reduced, and therefore the maintenance cost is reduced.

5. Prolonging the service life of the equipment: the valve body is replaced regularly, so that the abrasion degree of the valve can be effectively reduced, and the service life of the equipment is prolonged.

6. And (3) on-off control: the drive assembly and the auxiliary valve plate in the scheme are designed so that on-off control of the pipeline can be realized in the process of replacing the valve body, and the normal operation of a pipeline system can be maintained when the pipeline is required to be maintained or overhauled.

7. The adaptability is strong: the design of the scheme has stronger universality and adaptability, can be applied to various pipeline systems, and provides an efficient and economical valve replacement solution for different industries.

Drawings

FIG. 1 is a schematic diagram of a three-dimensional mechanism of an example 1 of a core-changing valve of the present invention;

FIG. 2 is a schematic diagram of the assembly relationship of FIG. 1;

FIG. 3 is a schematic illustration of the transition tube, dynamic coupling assembly and drive assembly relationship of FIG. 2;

FIG. 4 is a side view of FIG. 3;

FIG. 5 is a schematic diagram of a three-dimensional mechanism of an example 2 of a core-change valve according to the present invention;

fig. 6 is an expanded view of fig. 3.

Reference numerals in the drawings: the valve seat assembly 1, the movable connecting assembly 2, the driving assembly 3, the sealing cover 4, the pipeline 5, the valve body 6, the base 11, the end wall 12, the fixed lug 13, the penetrating strip hole 14, the fixed flange 15, the outer flange 16, the wedge body 17, the transition pipe 18, the fixed pipe head 19, the pipe head 21, the movable flange 22, the fixed column 23, the side clamping groove 24, the movable lug 25, the stirring hole 26, the auxiliary valve plate 31, the rotating shaft 32, the spiral piece 33, the turnover connecting rod 34, the folding connecting rod 35, the shaft hole 36, the pipeline flange 51 and the valve body flange hole 61.

Detailed Description

The invention will be further described with reference to the drawings and examples.

Example 1: a quick core-changing valve for a heat supply pipeline comprises a valve seat assembly 1, a movable connecting assembly 2, a driving assembly 3, a sealing cover 4, a pipeline 5, a valve body 6 and the like.

As shown in fig. 1 and 2, the valve seat assembly 1 includes a base 11, an end wall 12, a stator lug 13, a through-going bar hole 14, a fixing flange 15, an outer flange 16, a wedge body 17, and a transition tube 18. The base 11 is in a groove shape, the front end and the rear end of the base are respectively fixed with end walls 12, the upper side of each end wall is respectively provided with an annular fixing flange 15, the left side and the right side of the fixing flange on one side or two sides (the two sides are shown in fig. 1 and the one side are shown in fig. 5) are respectively provided with a fixing lug 13 protruding outwards, each fixing lug 13 is provided with a penetrating strip hole 14, a fixing tube head 19 extends inwards along the fixing flange 15 at each end, a transition tube 18 extends outwards, and the other end of the transition tube 18 is connected with an outer flange 16.

The movable connecting assembly 2 shown in fig. 6 comprises a movable tube head 21, a movable flange 22, a fixed column 23, a side clamping groove 24, a movable lug 25 and a poking hole 26. The pipe head 21 is matched and sleeved on the outer side of the fixed pipe head 19, the end part of the movable pipe head 21 is connected with movable flanges 22, a plurality of fixed columns 23 are uniformly distributed and fixed on the inner end surface of each movable flange 22, the top end of each fixed column 23 is a conical head or a wedge-shaped head, and a concave side clamping groove 24 is formed in the circumferential surface of each fixed column 23. On both sides of the moving flange 22 there are protruding moving lugs 25.

The driving assembly 3 shown in fig. 2 and 6 includes an auxiliary valve plate 31, a rotary shaft 32, a spiral piece 33, a flip link 34, a fold link 35, and a shaft hole 36. The rotary shafts 32 extend radially on the left and right sides of the disc-shaped auxiliary valve plate 31, the rotary shafts 32 pass through the center of the auxiliary valve plate 31, shaft holes 36 are formed in the left and right sides of the transition pipe and are provided with shaft sleeves, the auxiliary valve plate 31 is matched and sleeved in the transition pipe 18, the rotary shafts are matched and sleeved in corresponding shaft holes and shaft sleeves, spiral sheets 33 are vertically fixed at the outer ends of the rotary shafts, turning connecting rods 34 are fixed at the outer ends of each spiral blade, folding connecting rods 35 are fixed at the tail ends of the turning connecting rods 34 on the two sides, and the folding connecting rods 35 are matched and attached with the outer surfaces of the transition pipe 18. The spiral blades on both sides are respectively sleeved in the through strip holes 14 and respectively supported on the inner surfaces of the movable lugs 25, when the folding connecting rod 35 is pressed downwards to be attached to the surface of the transition pipe 18, the rotating shaft is driven to rotate 90 degrees through the overturning connecting rod 34, the auxiliary valve plate 31 is changed from vertical to horizontal, namely from cut-off to unblocked, and simultaneously, the spiral blades push the movable flanges 22 forwards to enable the fixed columns 23 to be inserted into the corresponding valve body flange holes 61 on both sides of the valve body 6. The outer flange 16 at the other end of the transition pipe 18 is fixedly connected with a pipe flange 51 of the pipe 5.

Further, on the basis of embodiment 1, a wedge body 17 is vertically fixed on the end wall of the fixed flange and the outer side surface of the fixed tube head 19, as shown in fig. 6, and the wedge body 17 is inserted into the poking hole 26 when the poking hole 26 is arranged at the root part of the movable flange for assembly. This results in a rotation angle of the movable flange 22 and the movable pipe head 21 towards the toggle hole 26 by the wedge 17 when the movable flange 22 is pushed forward by the screw 33. Due to the wedge 17, the movable flange 22 carries the plurality of fixing columns 23 to rotate to one side (for example, rotate clockwise), but when each fixing column 23 is assembled in the valve body flange hole 61 of the valve body 6, under the action of the wedge 17, each side clamping groove 24 is clamped and sleeved in the valve body flange hole 61 of the valve body 6, so that the valve body 6 is fixedly connected with the movable flange 22 (the rotation freedom degree is locked), the movable flange 22 is fixedly connected with the fixed tube head 19 (the axial freedom degree is locked), the whole valve body 6 and the valve seat assembly 1 are fixed together, and the pipeline is kept smooth. After the valve body 6 is installed and fixed, the turning rod of the valve body 6 is controlled to rotate, so that the on-off control of the whole pipeline can be realized. When the valve body 6 needs to be replaced, the reverse operation described above is adopted.

The sealing covers 4 are sleeved outside the transition pipes 18 at the two ends, as shown in fig. 2, the sealing covers 4 at the two ends can slide outwards along the axial direction to expose the driving assembly 3, the sealing covers 4 are pulled out during replacement to facilitate the replacement operation, and the sealing covers 4 slide inwards along the axial direction after the replacement is completed and are fixed on the outer sides of the transition pipes through screws.

Based on the scheme, the using process is as follows:

1. before starting the operation, please ensure that the piping system requiring the replacement of the valve body 6 has been closed and that necessary safety measures are taken, such as wearing protective gloves, glasses, etc.

2. The sealing cap 4 outside the transition pipe 18 at both ends is pulled out using a suitable tool. At this time, the driving assembly 3 will be exposed to the outside for easy operation.

3. When the valve body 6 is first installed, the valve body flange hole 61 of the valve body 6 corresponds to the groove position of the base 11, and the valve body 6 is placed on the base 11. Next, it is necessary to align the valve body flange hole 61 of the valve body 6 with the position of the movable flange 22.

4. The folding link 35 is pressed downwardly to conform to the surface of the transition tube 18. In this way, the turning connecting rod 34 turns the rotating shaft by 90 degrees, so that the auxiliary valve plate 31 is changed from vertical to horizontal, and the conversion from cut-off to smooth is realized.

5. With the forward rotation of the flight 33, the moving flange 22 will be pushed forward. This will insert each fixing post 23 into the corresponding valve body flange hole 61 on both sides of the valve body 6. At the same time, the movable flange 22 is subjected to the wedge 17 to generate a rotation angle along the direction of the toggle hole 26, so that the fixed pipe head 19 is fixedly connected.

6. When the valve body 6 needs to be replaced, the folding link 35 is first lifted upward. This will cause the flip link 34 to drive the spindle to rotate 90 degrees in opposite directions, changing the auxiliary valve plate 31 from horizontal to vertical, effecting a clear to cut-off transition.

7. With the reverse rotation of the flight 33, the flight will move rearward and exert a compressive force on the moving flange 22. After the movable flange 22 is rotated slightly, each of the fixing posts 23 can be withdrawn from the valve body flange hole 61 of the valve body 6. Next, a new valve body 6 is mounted to the recessed position of the base 11, and then the operation of step 3-5 is repeated.

8. After the replacement is completed, the seal cap 4 is slid axially inward so as to cover the outside of the transition pipe 18. The sealing cap 4 is fixed in place using screws.

In the whole using process, the safety regulations are required to be followed, so that the safety of operators is ensured. In addition, the valves are regularly inspected and maintained to ensure proper operation.

Example 2: on the basis of embodiment 1, as shown in fig. 5, only the movable connection assembly 2 and the driving assembly 3 are installed on the fixing flange 15 on one side, and the other side is directly butt-fixed with the fixing flange 15 by the pipe flange 51 of the pipe 5, in this way, a plurality of fixing posts 23 need to be uniformly fixed on the periphery of the inner end of the pipe flange 51, the top end of each fixing post 23 is a conical head or a wedge-shaped head, a concave side clamping groove 24a is arranged on the circumferential surface of each fixing post 23, but the direction of the side clamping groove 24a on the fixing post of the pipe flange is opposite to the direction of the side clamping groove 24 on the fixing post of the movable flange 22, so that when the movable flange is driven to rotate to one side by the wedge-shaped body 17, the valve body 6 is driven to rotate slightly at the same time, so that the side clamping groove 24a can be hung in the flange hole of the valve body. This way the number of movable connection assemblies 2 and driving assemblies 3 is simplified, but the symmetry is not as good as in embodiment 1.

The above detailed description of the present invention is merely illustrative or explanatory of the principles of the invention and is not necessarily intended to limit the invention. Accordingly, any modification, equivalent replacement, improvement, etc. made without departing from the spirit and scope of the present invention should be included in the scope of the present invention.

Claims

1. The utility model provides a quick core valve of heat supply pipeline, includes disk seat subassembly (1), pipeline (5) and valve body (6), its characterized in that still includes movable connection subassembly (2) and actuating assembly (3), disk seat subassembly (1) include base (11), flange (15), transition pipe (18) and fixed tube head (19), flange (15) are connected respectively at the both ends of base (11), each flange (15) outwards connects transition pipe (18), inwards connects fixed tube head (19), movable connection subassembly (2) include movable tube head (21) and movable flange (22), the end connection of movable tube head (21) has movable flange (22), and movable tube head (21) and movable flange (22) suit in the outside of fixed tube head (19), actuating assembly (3) are including auxiliary valve plate (31), pivot (32), upset connecting rod (34) and folding connecting rod (35), are located the left and right sides radial extension of disc auxiliary valve plate (31) have pivot (32), this pivot (32) are crossed the centre of a circle of auxiliary valve plate (31) simultaneously in transition pipe (18) is provided with movable tube head (22), and movable tube head (22) suit is provided with in auxiliary valve plate (18), the rotary shafts (32) are sleeved in corresponding shaft holes (36) and shaft sleeves in a matching manner, the outer ends of the rotary shafts (32) are vertically fixed with turning connecting rods (34), the tail ends of the turning connecting rods (34) at two sides are fixed with folding connecting rods (35), the folding connecting rods (35) are matched and attached to the outer surfaces of the transition pipes (18), the outer ends of the rotary shafts (32) at two sides are also fixed with spiral sheets (33), the left side and the right side of each fixed flange (15) are respectively provided with a fixed lug (13) protruding outwards, each fixed lug (13) is provided with a penetrating strip hole (14), the two sides of each movable flange (22) are respectively sleeved in the penetrating strip holes (14) and respectively supported on the inner surfaces of the movable lugs (25), when the rotary shafts (32) are pressed downwards to enable the rotary shafts (35) to rotate by 90 degrees, the auxiliary valve plates (31) are changed from vertical directions to transverse directions, namely from cut-off directions, meanwhile, the spiral blades push the movable flanges (22) forwards, the fixed posts (23) are pushed forwards to be inserted into the corresponding fixed flanges (6) to drive the movable flanges (19) to move forwards along the axial direction, and the fixed flanges (6) and the fixed flanges (61) are driven by the movable flanges (6) to move forwards along the axial direction, and the fixed flanges (61) and the movable flanges (6) respectively, and the movable flanges (6) are driven by the movable flanges (6) respectively, the driving assembly (3) also simultaneously controls the transition pipe (18) to cut off the water flow passage.

2. The quick core changing valve for heating pipelines according to claim 1, wherein the middle part of the base (11) is a groove, the valve body (6) is arranged in the groove, the front end and the rear end of the base (11) are respectively fixed with end walls (12), and the upper side of each end wall (12) is respectively provided with the fixing flange (15).

3. The quick core-changing valve for heating pipelines according to claim 1, wherein an outer flange (16) is connected to the other end of the transition pipe (18), and the outer flange (16) is fixedly connected with a pipeline flange (51) of the pipeline (5).

4. A quick-change valve for heating pipes according to claim 1, characterized in that a through-fixing assembly is provided between the inner end face of each movable flange (22) and the outer end face of the fixed flange (15), comprising through-fixing bolts or fixing columns (23).

5. A quick-change valve for a heating pipe according to claim 4, characterized in that a rotary driving mechanism is arranged between the fixed flange (15) and the movable flange (22) to promote the fixation of the two, the rotary driving mechanism being a tension spring or a wedge assembly.