Soot blower lifting valve with spring assembly convenient to replace

Abstract

The utility model relates to a soot blower lift valve with a spring assembly convenient to replace, and belongs to the technical field of soot blower lift valves. The soot blower lift valve comprises a valve body seat, a flange mounting seat, a connecting seat, an adjusting nut, a switch valve seat, a valve rod sealing seat, a valve rod, a valve plate, a spring and a connecting arm hinge seat; and a flange mounting seat, a connecting seat, an adjusting nut and a valve rod sealing seat are arranged outside the valve body seat. When the soot blower lifting valve convenient for replacing the spring assembly is used, an arranged connecting arm hinge seat is connected with a connecting arm, and a soot blower driver is matched to drive the connecting arm to rotate to press the connecting arm hinge seat to compress the spring, and meanwhile, the connecting assembly synchronously moves in a linkage manner, so that when the spring is in a compressed state, the spring can be conveniently replaced. The connecting assembly is locked through the locking assembly, and the compressed spring is prevented from resetting, so that the whole lifting valve is conveniently disassembled when the spring is in a compressed state, the connecting and disassembling assembly is disassembled to replace the spring, and the convenience of disassembling and assembling the spring is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sootblower lifting valves, in particular to a sootblower lifting valve which is convenient for replacing a spring component. Background Art

[0002] The sootblower lifting valve is a valve used in boilers, heat exchangers and other equipment. It is mainly used to control the working state of the sootblower. The function of the sootblower is to remove the accumulated soot inside the equipment to improve the heat exchange efficiency and the operating safety of the equipment. The lifting valve is usually used to lift the nozzle of the sootblower to the working position when needed, or lower it back to the non-working position when not needed.

[0003] Among them, when the spring of the sootblower lifting valve is replaced, the spring is in an extended state, and its elastic force supports the limit lock part that limits the spring, resulting in it being in a tensioned state during disassembly. It is necessary to use a tool to press and compress the spring to remove the spring supporting force, and then remove the lock part on the limit seat that limits the spring, which makes replacement and disassembly difficult. Therefore, the present application designs a sootblower lifting valve that is easy to replace the spring assembly to solve this technical defect of the prior art. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a sootblower lifting valve with a spring assembly that is easy to replace, and has the advantages of being easy to replace the spring assembly, etc.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: A sootblower lifting valve that is convenient for replacing a spring assembly, comprising a valve body seat, a flange mounting seat, a connecting seat, an adjusting nut, a switch valve seat, a valve stem sealing seat, a valve stem, a valve plate, a spring and a connecting arm hinge seat;

[0006] The outside of the valve body seat is provided with a flange mounting seat, a connecting seat, an adjusting nut and a valve stem sealing seat, the inside of the valve body seat is connected with a switch valve seat, a valve stem is sealingly slid in the valve stem sealing seat, and a valve plate tightly fitted with the switch valve seat is installed at one end of the valve stem located in the valve body seat;

[0007] The spring is placed on the surface of the valve stem sealing seat and is located outside the valve stem. A limit seat is placed outside the other end of the spring and is passed through by the valve stem. A limit nut is connected to the outer thread of the valve stem to limit the limit seat. The other end of the limit nut is connected to the connecting arm hinge seat.

[0008] Wherein, the valve body seat is provided with a connecting component that cooperates with the limit seat to move up and down in linkage;

[0009] The valve body seat is also provided with a locking component for locking the connecting component when the limit seat moves down to the bottom;

[0010] A connection and disassembly component is provided between the connection component and the limiting seat, which is convenient for disassembling the connection component.

[0011] As a preferred technical solution of the utility model, the connecting assembly includes a plurality of limit sliding grooves provided on the surface of the valve body seat, a lower hinge seat is limitedly slidable in the limit sliding groove, a rotating connecting rod is hinged on the lower hinge seat, and the other end of the rotating connecting rod is hinged on the upper hinge seat;

[0012] Wherein, the upper hinge seat is in contact with the surface of the limiting seat.

[0013] The above technical solution is adopted to facilitate synchronous expansion and movement in coordination with the downward movement of the limit seat after the limit seat is connected.

[0014] As a preferred technical solution of the utility model, a sliding block sliding in the limiting slide groove is installed at one end of the lower hinged seat located in the limiting slide groove, and the sliding block and the limiting slide groove are inseparable.

[0015] The above technical solution is adopted to ensure smooth sliding of the lower articulated seat while preventing the lower articulated seat from being separated from the limiting sliding groove.

[0016] As a preferred technical solution of the utility model, the locking assembly includes a plurality of loading plates installed on the outside of the valve body seat and located on the outside of the limiting slide groove in a one-to-one correspondence with the limiting slide groove, and an electromagnet is installed on the outside of the loading plate.

[0017] By adopting the above technical solution, the moving connecting component can be locked and fixed to prevent the spring from being reset after being compressed.

[0018] As a preferred technical solution of the utility model, the connection and separation assembly includes a positioning plug installed on the surface of the upper hinge seat and inserted into the limit seat, a locking groove provided on the surface of the upper hinge seat and arranged opposite to the positioning plug, and a support seat installed on the surface of the limit seat and corresponding to the upper hinge seat one by one;

[0019] Wherein, a fastening nut is embedded in the support seat, and the internal thread of the fastening nut is connected to a locking screw inserted into the locking groove.

[0020] The above technical solution is adopted to facilitate the installation and separation of the connecting component and the upper hinge seat.

[0021] As a preferred technical solution of the utility model, when the spring is in a fully compressed state, the lower hinge seat fits the electromagnet.

[0022] With the above technical solution, it is ensured that when the spring is in a fully compressed state, the lower hinge seat can be limited and locked, avoiding the spring from stretching and resetting after compression.

[0023] As a preferred technical solution of the present invention, a controller electrically connected to the electromagnet is provided outside the valve body seat, and a control switch is electrically connected to the controller.

[0024] With the above technical solution, the energization and de-energization of the electromagnet are realized.

[0025] Compared with the prior art, the technical solution of the present application has the following beneficial effects:

[0026] For the soot blower lifting valve that facilitates the replacement of the spring assembly, when in use, the connecting arm is connected to the connecting arm through the provided connecting arm hinge seat, and the connecting arm is driven by the soot blower driver to rotate to press and compress the spring of the connecting arm hinge seat. At the same time, the connecting component moves synchronously in linkage, so that when the spring is in a compressed state, the connecting component is locked by the locking component to prevent the compressed spring from resetting. Thus, it is convenient to remove the overall lifting valve when the spring is in a compressed state, and disassemble the connecting and splitting components to replace the spring, improving the convenience of spring disassembly and assembly. Description of the Drawings

[0027] Figure 1 Is a three-dimensional view of the present invention;

[0028] Figure 2 Is a front three-dimensional view of the present invention;

[0029] Figure 3 Is an enlarged three-dimensional view of part A of the present invention;

[0030] Figure 4 Is a three-dimensional view of the partial structure of the present invention.

[0031] In the figure: 1, valve body seat; 2, flange mounting seat; 3, connecting seat; 4, adjusting nut; 5, switch valve seat; 6, valve stem seal seat; 7, valve stem; 8, valve plate; 9, spring; 10, limit seat; 11, limit nut; 12, connecting arm hinge seat; 13, limit chute; 14, lower hinge seat; 15, rotating link; 16, upper hinge seat; 17, positioning plug; 18, locking groove; 19, support seat; 20, fastening nut; 21, locking screw; 22, loading plate; 23, electromagnet. Detailed Embodiments

[0032] 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 in 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.

[0033] See also Figures 1 to 2 In this embodiment, a sootblower lifting valve that is easy to replace a spring assembly includes a valve body seat 1, a flange mounting seat 2, a connecting seat 3, an adjusting nut 4, a switch valve seat 5, a valve stem sealing seat 6, a valve stem 7, a valve plate 8, a spring 9 and a connecting arm hinge seat 12.

[0034] The right side of the valve body seat 1 is connected to a flange mounting seat 2, the surface of the valve body seat 1 is connected to a connecting seat 3, the surface of the valve body seat 1 is threadedly connected to an adjusting nut 4, the surface of the valve body seat 1 is connected to a valve stem sealing seat 6, the interior of the valve body seat 1 is connected to a switch valve seat 5, a valve stem 7 is sealed and slidably inside the valve stem sealing seat 6, and one end of the valve stem 7 located in the valve body seat 1 is fixedly mounted with a valve plate 8 that fits tightly with the switch valve seat 5.

[0035] The switch valve seat 5 is a hollow annular body, the diameter of the switch valve seat 5 is equal to the inner diameter of the valve body seat 1 , and the concentric diameter of the valve plate 8 and the switch valve seat 5 is larger than the opening diameter of the switch valve seat 5 .

[0036] The spring 9 is placed on the surface of the valve stem sealing seat 6 and is located outside the valve stem 7. The other end of the spring 9 is externally limited by a limit seat 10 passed through by the valve stem 7. The external thread of the valve stem 7 is connected to a limit nut 11 for limiting the limit seat 10. The other end of the limit nut 11 is fixedly connected to the connecting arm hinge seat 12.

[0037] The limiting seat 10 is provided with a through hole for the valve stem 7 to pass through.

[0038] In this embodiment, the valve body seat 1 is provided with a connecting component that cooperates with the limit seat 10 to move up and down.

[0039] It should be noted that the connecting assembly includes a plurality of limiting grooves 13 arranged on the surface of the valve body seat 1 and distributed in an annular shape and at equal distances. A lower hinged seat 14 is provided in the limiting groove 13 for limiting sliding. A rotating connecting rod 15 is hinged on the lower hinged seat 14. The other end of the rotating connecting rod 15 is hinged to an upper hinged seat 16.

[0040] The upper hinge seat 16 is in contact with the surface of the limiting seat 10 .

[0041] One end of the lower hinge seat 14 located in the limit sliding groove 13 is fixedly installed with a sliding block that slides in the limit sliding groove 13, and the sliding block is not separated from the limit sliding groove 13.

[0042] In this embodiment, the valve body seat 1 is further provided with a locking component for locking the connection component when the limit seat 10 moves down to the bottom.

[0043] It should be noted that the locking component includes a plurality of mounting plates 22 that are fixedly installed on the outer side of the valve body seat 1 and are distributed at equal intervals in a ring shape and are located outside the limit sliding groove 13 and correspond to the limit sliding groove 13 one by one. An electromagnet 23 is fixedly installed on the outside of the mounting plate 22.

[0044] Please refer to Figures 3 to 4 In this embodiment, a connection splitting component is provided between the connection component and the limit seat 10 to facilitate the disassembly of the connection component.

[0045] It should be noted that the connection splitting component includes a positioning plug 17 that is fixedly installed on the surface of the upper hinge seat 16 and is inserted into the limit seat 10, a locking groove 18 that is opened on the surface of the upper hinge seat 16 and is opposite to the positioning plug 17, and a support seat 19 that is installed and fixed on the surface of the limit seat 10 and corresponds to the upper hinge seat 16 one by one.

[0046] Among them, a fastening nut 20 is embedded and fixed in the support seat 19, and a locking screw 21 that is screwed into the locking groove 18 is connected to the fastening nut 20 in a threaded manner.

[0047] When the spring 9 is in a fully compressed state, the lower hinge seat 14 is in contact with the electromagnet 23.

[0048] Among them, the lower hinge seat 14 is a magnetic adsorption material that can be magnetically adsorbed by the electromagnet 23.

[0049] An external controller of the valve body seat 1 is electrically connected to the electromagnet 23. The controller is electrically connected to a control switch, and a rechargeable battery is equipped in the controller.

[0050] The working principle of the above embodiment is as follows:

[0051] After connecting the connecting arm hinge seat 12 and the connecting arm through the locking pin, the connecting arm is connected to the actuator of the soot blower. When driving, the connecting arm rotates and presses the connecting arm hinge seat 12 and the valve stem 7. The spring 9 is compressed synchronously, so that the valve stem 7 drives the valve plate 8 to move down and separate from the valve stem seal seat 6 to be in an open state;

[0052] When the spring 9 needs to be replaced, in the open state of the valve plate 8, since the lower movement of the connecting arm hinge seat 12 drives the limit seat 10 on the limit nut 11 to move downward synchronously, during the downward movement of the limit seat 10, the rotating link 15 hinged on the upper hinge seat 16 is driven to rotate, so that while the rotating link 15 rotates on the connected lower hinge seat 14, it pushes the lower hinge seat 14 to perform a linear limit movement within the limit chute 13, causing the lower hinge seat 14 to contact the electromagnet 23, and starting the electromagnet 23 to be energized to adsorb and fix the lower hinge seat 14, thereby realizing the limitation of the downward-moved limit seat 10 and the compressed spring 9, and avoiding the spring from stretching and resetting;

[0053] Thus, it is convenient to disassemble and separate the lifting valve and the soot blower in the state where the spring 9 is compressed and limited to the locked state. After separation, rotating the connecting arm hinge seat 12 drives the limit nut 11 to be screwed out of thread and separated from the valve stem 7. At the same time, rotating the locking screw 21 to be screwed out of thread and separated from the locking groove 18, then the positioning insert block 17 on the upper hinge seat 16 can be separated from the valve body seat 1. After separation, the spring 9 is no longer compressed and limited, and automatically elastically resets and stretches to push the limit seat 10 to be separated from the valve stem 7, and then the spring 9 can be taken out and replaced, avoiding the use of tools to compress the spring 9 to overcome the elastic support force and then disassembling the spring 9, and improving the convenience of disassembly.

[0054] All electrical components mentioned in the text are electrically connected to the main controller and the power supply. The main controller can be a conventional known device such as a computer for control, and the existing publicly disclosed electrical connection technologies are not elaborated in the text.

Claims

1. A soot blower lift valve facilitating spring assembly replacement, comprising a valve body seat (1), a flange mounting seat (2), a connecting seat (3), an adjusting nut (4), a switching valve seat (5), a valve stem seal seat (6), a valve stem (7), a valve plate (8), a spring (9), and a connecting arm hinge seat (12); The outer part of the valve body seat (1) is provided with a flange mounting seat (2), a connecting seat (3), an adjusting nut (4), and a valve stem seal seat (6). The inside of the valve body seat (1) communicates with a switching valve seat (5). A valve stem (7) is hermetically slid in the valve stem seal seat (6). One end of the valve stem (7) located inside the valve body seat (1) is equipped with a valve plate (8) closely attached to the switching valve seat (5); It is characterized in that: The spring (9) is placed on the surface of the valve stem seal seat (6) and outside the valve stem (7). The other end of the spring (9) is externally limited and placed with a limit seat (10) through which the valve stem (7) passes. The outside of the valve stem (7) is threadedly connected with a limit nut (11) for limiting the limit seat (10). The other end of the limit nut (11) is connected to the connecting arm hinge seat (12); Among them, a connecting component for linkage with the up and down movement of the limit seat (10) is provided on the valve body seat (1); A locking component for locking the connecting component when the limit seat (10) moves down to the bottom is further provided on the valve body seat (1); A connecting and splitting component facilitating the disassembly of the connecting component is provided between the connecting component and the limit seat (10).

2. The soot blower lift valve according to claim 1, which is convenient for replacing the spring assembly, is characterized in that: The connecting component includes a plurality of limit sliding grooves (13) provided on the surface of the valve body seat (1). A lower hinge seat (14) is limit slid in the limit sliding grooves (13). A rotating connecting rod (15) is hinged on the lower hinge seat (14). The other end of the rotating connecting rod (15) is hinged with an upper hinge seat (16); Among them, the upper hinge seat (16) is attached to the surface of the limit seat (10).

3. The soot blower lift valve according to claim 2, which is convenient for replacing the spring assembly, is characterized in that: One end of the lower hinge seat (14) located in the limit sliding groove (13) is equipped with a sliding block sliding in the limit sliding groove (13), and the sliding block is inseparable from the limit sliding groove (13).

4. The soot blower lift valve facilitating the replacement of a spring assembly according to claim 3, characterized in that: The locking component includes a plurality of loading plates (22) installed on the outer side of the valve body seat (1) and corresponding to the limit sliding grooves (13) one by one and located outside the limit sliding grooves (13). An electromagnet (23) is installed outside the loading plate (22).

5. The soot blower lift valve according to claim 4, which is convenient for replacing the spring assembly, is characterized in that: The connecting and splitting component includes a positioning plug (17) installed on the surface of the upper hinge seat (16) and inserted into the limit seat (10), a locking groove (18) provided on the surface of the upper hinge seat (16) opposite to the positioning plug (17), and a support seat (19) installed on the surface of the limit seat (10) corresponding to the upper hinge seat (16) one by one; Among them, a fastening nut (20) is embedded in the support seat (19). A locking screw (21) inserted into the locking groove (18) is threadedly connected in the fastening nut (20).

6. The soot blower lift valve according to claim 5, which is convenient for replacing the spring assembly, is characterized in that: When the spring (9) is in a fully compressed state, the lower hinge seat (14) is in contact with the electromagnet (23).

7. The soot blower lift valve according to claim 6, which is convenient for replacing the spring assembly, is characterized in that: An external part of the valve body seat (1) is provided with a controller electrically connected to the electromagnet (23), and the controller is electrically connected to a control switch.

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