A boiler desuperheater short tube elbow convenient to replace

Abstract

The utility model belongs to boiler desuperheater technical field, and disclose a kind of boiler desuperheater short tube elbow convenient to replace, including desuperheater body, the upper surface of desuperheater body is connected with installation pipe, installation pipe is provided with slot, the downside of slot is provided with sliding slot, sliding slot is provided with slot, the inner surface of slot is fixedly connected with mounting plate, the lower surface of mounting plate is fixedly connected with spring, another end of spring is fixedly connected with clamping block, elbow is installed in installation pipe, the outer surface of elbow is fixedly connected with plug. Through the cooperation of installation pipe, slot, sliding slot, slot, mounting plate, spring, clamping block, elbow and plug, the elbow can be quickly installed and replaced by clamping, the quick fixing and disassembly of elbow can be realized, the installation and replacement time is greatly shortened, without complex welding or threaded connection, operation is more simple, without professional welding equipment or special tool, reduce operation difficulty.

Description

Technical Field

[0001] This utility model belongs to the technical field of boiler desuperheaters, specifically a short pipe elbow for boiler desuperheaters that is easy to replace. Background Technology

[0002] The short tube elbow of the boiler desuperheater is one of the key connecting components in the boiler system. It connects the boiler body and the desuperheater, and plays a role in regulating and controlling the flow of cooling water or steam. Due to the complex operating environment and harsh working conditions, the elbow is susceptible to thermal expansion, corrosion, vibration, etc., which can lead to seal failure, leakage, or damage. With the increase in industrialization, the frequency of equipment maintenance and replacement has increased. Traditional elbow connection methods have problems such as high maintenance difficulty, cumbersome disassembly and assembly, and long downtime.

[0003] Meanwhile, a desuperheater with application number CN202421479586.X includes a desuperheating pipe, a hot steam inlet, a desuperheating water inlet, a cyclone separator, and a suitable-temperature steam outlet. The desuperheating pipe has a cavity; the hot steam inlet is connected to the cavity; the desuperheating water inlet is also connected to the cavity, and desuperheating water enters the cavity from the desuperheating water inlet to mix with the hot steam and desuperheat it; the cyclone separator has multiple swirl blades arranged around the circumference of the desuperheating pipe, with the radially outer ends of the blades abutting against the inner wall of the desuperheating pipe. Furthermore, viewed from the axial direction of the desuperheating pipe, the side of each swirling blade is completely located in front of or behind the blade surface of the adjacent swirling blade, so that the parallel projection of the swirling device in the axial direction of the desuperheating pipe fills the cross-section of the desuperheating pipe; the suitable temperature steam outlet is connected to the cavity, and the hot steam inlet and the suitable temperature steam outlet are respectively located on both sides of the swirling device, so that after the hot steam enters the cavity from the hot steam inlet, it hits the blade surface of the swirling blade, passes between the blade surfaces of two adjacent swirling blades, rotates and mixes, and then flows out from the suitable temperature steam outlet.

[0004] However, the following problems were found in the implementation of the relevant technology: the elbows used are connected by threads, welding or fasteners, and disassembly requires heating, cutting or removing multiple bolts, which is time-consuming and labor-intensive, increasing the difficulty of maintenance. At the same time, the seals are prone to aging and deformation under high temperature and high pressure, resulting in frequent leakage problems, affecting equipment safety and operational stability.

[0005] Therefore, we propose a short tube elbow for boiler desuperheaters that is easy to replace. Utility Model Content

[0006] To address the problems mentioned in the background art, this utility model provides a boiler desuperheater short tube elbow that is easy to replace. It has the advantages of quick elbow replacement through a snap-fit ​​mechanism and improved sealing performance.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a replaceable boiler desuperheater short tube elbow, comprising a desuperheater body, an installation tube fixedly connected to the upper surface of the desuperheater body, a slot provided inside the installation tube, a sliding groove provided on the lower side of the slot, a slot provided inside the sliding groove, an installation plate fixedly connected to the inner surface of the slot, a spring fixedly connected to the lower surface of the installation plate, a locking block fixedly connected to the other end of the spring, an elbow installed inside the installation tube, an insert fixedly connected to the outer surface of the elbow, a sealing strip fixedly connected to the lower surface of the elbow, a sealing ring fixedly connected to the bottom surface of the installation tube, and a locking groove provided on the sealing ring.

[0008] Preferably, a pull rod is fixedly connected to the upper surface of the card block, and a pull block is fixedly connected to the other end of the pull rod.

[0009] Preferably, the mounting plate and the mounting tube are provided with openings, the openings are slidably connected to the pull rod, and a sealing element is provided at the connection between the openings and the pull rod.

[0010] Preferably, the front side of the card block is sloping and rounded, and the rear side of the card block is vertical.

[0011] Preferably, the insert block is slidably connected to the slot, and the insert block is slidably connected to the slide groove.

[0012] Preferably, the card slot and the sealing strip have the same shape, and the card slot is divided into an upper slot and a lower slot, with the width of the upper slot being smaller than the width of the lower slot.

[0013] Preferably, the sealing ring and sealing strip are made of silicone.

[0014] Preferably, the insert block and the card block are movably connected.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. This utility model utilizes the cooperation of mounting pipe, slot, slide, groove, mounting plate, spring, locking block, elbow and insert block to quickly install and replace elbows through a snap-fit ​​mechanism. It enables rapid fixing and disassembly of elbows, greatly shortening the installation and replacement time. It eliminates the need for complex welding or threaded connections, making operation simpler and requiring no professional welding equipment or special tools, thus reducing the difficulty of operation.

[0017] 2. This utility model, through the cooperation of the sealing ring, the groove and the sealing strip, and the installation of the sealing strip and the sealing ring by compression and snapping, can ensure that the sealing strip and the sealing ring fit tightly together to form a stable sealing ring, effectively preventing the leakage of steam, flue gas or cooling water, improving the safety and reliability of the system, and making maintenance and replacement simpler and faster, shortening downtime. At the same time, the sealing effect is more stable and less affected by temperature changes or vibration, reducing the risk of seal failure. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a bottom view of the mounting pipe connection structure of this utility model;

[0020] Figure 3 This is a partially enlarged schematic diagram of the mounting pipe connection structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the card block connection structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the elbow connection structure of this utility model.

[0023] In the diagram: 1. Desuperheater body; 2. Mounting pipe; 3. Slot; 4. Slide groove; 5. Groove; 6. Mounting plate; 7. Spring; 8. Locking block; 9. Pull rod; 10. Elbow; 11. Insert block; 12. Sealing ring; 13. Slot; 14. Sealing strip; 15. Pull block. Detailed Implementation

[0024] 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.

[0025] like Figures 1 to 4As shown, this utility model provides a boiler desuperheater short tube elbow that is easy to replace, including a desuperheater body 1, an installation tube 2 fixedly connected to the upper surface of the desuperheater body 1, a slot 3 provided inside the installation tube 2, a sliding groove 4 provided on the lower side of the slot 3, a slot 5 provided inside the sliding groove 4, an installation plate 6 fixedly connected to the inner surface of the slot 5, a spring 7 fixedly connected to the lower surface of the installation plate 6, a locking block 8 fixedly connected to the other end of the spring 7, an elbow 10 installed inside the installation tube 2, an insert block 11 fixedly connected to the outer surface of the elbow 10, a sealing strip 14 fixedly connected to the lower surface of the elbow 10, a sealing ring 12 fixedly connected to the bottom surface of the installation tube 2, and a locking groove 13 provided on the sealing ring 12.

[0026] Specifically, a pull rod 9 is fixedly connected to the upper surface of the locking block 8, and a pull block 15 is fixedly connected to the other end of the pull rod 9.

[0027] Furthermore, the mounting plate 6 and the mounting tube 2 are provided with openings, which are slidably connected to the pull rod 9. A sealing element is provided at the connection between the opening and the pull rod 9, which is the existing structure.

[0028] Furthermore, the front of block 8 is slanted and rounded, while the rear of block 8 is vertical.

[0029] It is worth noting that the insert 11 is slidably connected to the slot 3 and the slide 4.

[0030] It is worth noting that the card slot 13 and the sealing strip 14 have the same shape. The card slot 13 is divided into an upper slot and a lower slot. The width of the upper slot is smaller than the width of the lower slot to ensure the locking effect.

[0031] It is worth mentioning that the sealing ring 12 and the sealing strip 14 are made of silicone.

[0032] It is worth emphasizing that the insert block 11 and the card block 8 are actively connected.

[0033] The desuperheater body 1 and elbow 10 are existing technologies and will not be described in detail. Additionally, this utility model also includes a power supply, controller, and switch, which are not the main technical points of this patent and will not be described in detail. The "front, rear, left, and right" views of this device are... Figure 1 The direction shown in the diagram is the reference.

[0034] Working principle: In use, first insert the elbow 10 into the slot 3 through the insert block 11, thus inserting the elbow 10 into the installation tube 2. When the insert block 11 reaches the bottom of the slot 3, rotate the elbow 10, thereby rotating the insert block 11 to slide in the slide groove 4. The slide groove 4 presses against the locking block 8, and the locking block 8 retracts through the spring 7. After the slide groove 4 presses through the locking block 8, the spring 7 applies elastic force to the locking block 8, popping out the locking block 8. The locking block 8 fixes the insert block 11 to the inside of the slide groove 4, thus fixing the position of the insert block 11, and thus fixing the position of the elbow 10, completing the installation of the elbow 10. When it is necessary to remove the elbow 10, pull the pull block 15 continuously, thereby pulling the pull rod 9 through the pull block 15. The pull rod 9 drives the locking block 8 to move upward, and then rotate the elbow 10 to the other side, so that the insert block 11 slides from the slide groove 4 into the slot 3. Then lift out the elbow 10, which slides in the slot 3 through the insert block 11, thus removing the elbow 10.

[0035] During the installation of elbow 10, when elbow 10 enters the installation pipe 2 and reaches the bottom of the installation pipe 2, sealing strip 14 contacts sealing ring 12, and sealing ring 12 is squeezed and engaged in slot 13. Slot 13 has two slots, the upper slot is narrower and the lower slot is wider. Similarly, sealing strip 14 is narrower on the upper side and wider on the lower side, thus engaging slot 13 and sealing strip 14, thereby ensuring the sealing performance of the installation pipe 2 and elbow 10 and the stability of the sealing structure.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0037] 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 replaceable boiler desuperheater short tube elbow, comprising a desuperheater body (1), characterized in that: The upper surface of the desuperheater body (1) is fixedly connected to an installation tube (2), a slot (3) is provided inside the installation tube (2), a sliding groove (4) is provided on the lower side of the slot (3), a slot (5) is provided inside the sliding groove (4), an installation plate (6) is fixedly connected to the inner surface of the slot (5), a spring (7) is fixedly connected to the lower surface of the installation plate (6), a locking block (8) is fixedly connected to the other end of the spring (7), an elbow (10) is installed inside the installation tube (2), a plug (11) is fixedly connected to the outer surface of the elbow (10), a sealing strip (14) is fixedly connected to the lower surface of the elbow (10), a sealing ring (12) is fixedly connected to the bottom surface of the installation tube (2), and a locking groove (13) is provided on the sealing ring (12).

2. The easily replaceable boiler desuperheater short tube elbow according to claim 1, characterized in that: A pull rod (9) is fixedly connected to the upper surface of the card block (8), and a pull block (15) is fixedly connected to the other end of the pull rod (9).

3. The easily replaceable boiler desuperheater short tube elbow according to claim 1, characterized in that: The mounting plate (6) and the mounting tube (2) are provided with openings, the openings are slidably connected to the pull rod (9), and a sealing element is provided at the connection between the openings and the pull rod (9).

4. The easily replaceable boiler desuperheater short tube elbow according to claim 1, characterized in that: The front side of the card block (8) is slanted and rounded, and the rear side of the card block (8) is vertical.

5. The easily replaceable boiler desuperheater short tube elbow according to claim 1, characterized in that: The insert (11) is slidably connected to the slot (3), and the insert (11) is slidably connected to the slide (4).

6. The easily replaceable boiler desuperheater short tube elbow according to claim 1, characterized in that: The card slot (13) has the same shape as the sealing strip (14). The card slot (13) is divided into an upper slot and a lower slot. The width of the upper slot is smaller than the width of the lower slot.

7. The easily replaceable boiler desuperheater short tube elbow according to claim 1, characterized in that: The sealing ring (12) and the sealing strip (14) are made of silicone.

8. The easily replaceable boiler desuperheater short tube elbow according to claim 1, characterized in that: The insert (11) is movably connected to the card block (8).

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