Low-temperature economizer with heat pipes convenient to replace

Abstract

The utility model relates to the technical field of coal economizers, in particular to a low-temperature coal economizer convenient to replace a heat pipe, which comprises a coal economizer body, a guide pipe and a bent pipe are respectively arranged in the coal economizer body, a connecting component and a fixing component are respectively arranged on the outer surfaces of the bent pipe and the guide pipe, and the connecting component and the fixing component are opposite in position. By arranging the connecting assembly, the fixing rod extends into the mounting sleeve, and the fixing rod and the mounting sleeve are in an inserted connection state, so that the stability between the fixing sleeve and the mounting sleeve is improved, meanwhile, disassembly is facilitated, the working efficiency is improved, meanwhile, a sealing gasket is further arranged between the fixing sleeve and the mounting sleeve, and the sealing effect is improved; after the connecting rod is inserted into the inserting groove, the opening and closing plate is closed, the clamping block extends into the fixing groove, then the connecting rod is fixed into the inserting groove after butt joint, meanwhile, the stability between the mounting sleeve and the fixing sleeve is improved, and meanwhile, the working efficiency is improved during dismounting and mounting.

Description

Technical Field

[0001] The utility model relates to the technical field of economizers, in particular to a low-temperature economizer facilitating the replacement of heat pipes. Background Technique

[0002] An economizer is a device installed at the lower part of the flue duct at the tail of a boiler for recovering the waste heat of the exhausted flue gas, which is a heating surface for heating the boiler feed water into saturated water under the drum pressure. Since it absorbs the heat of high-temperature flue gas, reduces the exhaust temperature of the flue gas, saves energy and improves efficiency, it is called an economizer. The steel pipe economizer is not restricted by pressure and can be used as a boiling type. It is generally made of carbon steel pipes with an outer diameter of 32 - 51 mm. Sometimes fins and ribs are added outside the pipes to improve the heat transfer effect. The steel pipe economizer is composed of horizontally arranged parallel elbow pipes.

[0003] In the prior art, such as CN217899839U, a low-temperature economizer facilitating installation, through the mutual cooperation of the elbow pipes and the flue pipes in the device, makes the elbow pipes and the flue pipes in the device form a complete S shape. And the mutual cooperation of the first spring and the gasket in the device makes the device more stable in sealing during installation. And the mutual cooperation of the second spring and the positioning rod in the device enables the device to be quickly installed and disassembled during use. When the device needs to be cleaned, only the elbow pipes need to be disassembled, and then the inside of the flue pipes can be cleaned. The various parts in the device cooperate with each other, making the device more convenient during transportation, installation and cleaning, thus solving the problems that the device is in a welded state, resulting in difficult cleaning of the device and a large volume during transportation.

[0004] However, there are still certain deficiencies in the use of this device. Since the nut needs to be adjusted to a suitable position during the disassembly of this device to take out the positioning rod from the positioning hole, the working efficiency is reduced. After the flue pipe and the elbow pipe are connected, there is no connection structure on the outer surface, reducing the stability. Content of the Utility Model

[0005] The purpose of the utility model is to provide a low-temperature economizer facilitating the replacement of heat pipes, so as to solve the problems put forward in the above background technique that since the nut needs to be adjusted to a suitable position during the disassembly of this device to take out the positioning rod from the positioning hole, the working efficiency is reduced. After the flue pipe and the elbow pipe are connected, there is no connection structure on the outer surface, reducing the stability.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A low-temperature economizer facilitating the replacement of heat pipes, including an economizer body. A guide pipe and elbow pipes are respectively arranged inside the economizer body. Connection components and fixing components are respectively arranged on the outer surfaces of the elbow pipes and the guide pipe, and the connection components and the fixing components are opposite in position;

[0008] The connecting component includes a fixing sleeve fixedly connected to the outer surface of the elbow pipe. A connecting rod is fixedly connected to the side surface of the fixing sleeve. A fixing groove is formed on the side surface of the connecting rod. A fixing rod is fixedly connected to one end of the fixing sleeve. An extension pipe is fixedly connected to one end of the elbow pipe.

[0009] The fixing component includes an installation sleeve fixedly connected to the outer surface of the guiding pipe. A connecting plate is fixedly connected to the side surface of the installation sleeve. An opening and closing plate is hinged to the side surface of the connecting plate. A clamping block is fixedly connected to the side surface of the opening and closing plate. A slot is formed on the side surface of the opening and closing plate. The installation sleeve and the fixing sleeve are opposite in position. The fixing rod extends into the installation sleeve and is inserted into the installation sleeve.

[0010] As a preferred solution of the present utility model, the connecting rod extends into the slot and is inserted into the slot. The clamping block penetrates through the connecting plate and extends into the fixing groove. The clamping block is clamped with the fixing groove.

[0011] As a preferred solution of the present utility model, a connecting groove is formed on the side surface of the guiding pipe. The extension pipe extends into the connecting groove and is inserted into the connecting groove. The guiding pipe and the elbow pipe are communicated with each other.

[0012] As a preferred solution of the present utility model, a sealing gasket is fixedly connected to one end of the installation sleeve. The sealing gasket abuts against the fixing sleeve. The sealing gasket is made of rubber.

[0013] As a preferred solution of the present utility model, a cleaning plate is slidably connected to the outer surface of the guiding pipe. A fixing plate is fixedly connected to the side surface of the economizer body.

[0014] As a preferred solution of the present utility model, a supporting plate is fixedly connected to the side surface of the economizer body. A first connecting pipe and a second connecting pipe are respectively fixedly connected to the side surface of the supporting plate.

[0015] As a preferred solution of the present utility model, an air inlet pipe and an air outlet pipe are respectively fixedly connected to the side surfaces of the first connecting pipe and the second connecting pipe. Control valves are respectively arranged on the outer surfaces of the air inlet pipe and the air outlet pipe.

[0016] As a preferred solution of the present utility model, the first connecting pipe, the second connecting pipe, the guiding pipe and the elbow pipe are communicated with each other. The air inlet pipe and the air outlet pipe are respectively communicated with the first connecting pipe and the second connecting pipe.

[0017] Compared with the prior art, the beneficial effects of the present utility model are:

[0018] 1. In the present utility model, by providing a connection component, wherein the fixing rod extends into the installation sleeve and the two are in an inserted state, thereby improving the stability between the fixing sleeve and the installation sleeve. At the same time, it is convenient for disassembly, improving work efficiency. Also, a sealing gasket is provided between the fixing sleeve and the installation sleeve, thereby enhancing the sealing effect.

[0019] 2. In the present utility model, by providing a fixing component, after inserting the connecting rod into the slot, by closing the opening and closing plate, the clamping block extends into the fixing groove, thereby fixing the connecting rod in the slot after docking, and at the same time improving the stability between the installation sleeve and the fixing sleeve, and also improving work efficiency during disassembly and installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0021] Figure 2 is a schematic diagram of the connection structure between the elbow pipe and the guiding pipe of the present utility model;

[0022] Figure 3 is a schematic exploded view of the elbow pipe and the guiding pipe of the present utility model;

[0023] Figure 4 is a schematic diagram of the connection component and the fixing component of the present utility model.

[0024] In the figure: 1. Economizer body; 2. Cleaning plate; 3. Fixing plate; 4. Support plate; 5. First connecting pipe; 6. Second connecting pipe; 7. Inlet pipe; 8. Outlet pipe; 9. Control valve; 10. Elbow pipe; 11. Guiding pipe; 12. Connection component; 121. Fixing sleeve; 122. Extension pipe; 123. Connecting rod; 124. Fixing groove; 125. Fixing rod; 13. Fixing component; 131. Installation sleeve; 132. Connection slot; 133. Connection plate; 134. Opening and closing plate; 135. Clamping block; 136. Slot; 137. Sealing gasket. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0026] Embodiment, please refer to Figures 1-4 , the present utility model provides a technical solution:

[0027] A low-temperature economizer facilitating the replacement of heat pipes, comprising an economizer body 1, a guiding pipe 11 and a bent pipe 10 are respectively arranged inside the economizer body 1, connecting components 12 and fixing components 13 are respectively arranged on the outer surfaces of the bent pipe 10 and the guiding pipe 11, and the connecting components 12 and the fixing components 13 are opposite in position.

[0028] In this embodiment, according to Figure 1 , Figure 2 , Figure 3 and Figure 4 as shown, the connecting component 12 includes a fixing sleeve 121 fixedly connected to the outer surface of the bent pipe 10, a connecting rod 123 is fixedly connected to the side surface of the fixing sleeve 121, a fixing groove 124 is formed in the side surface of the connecting rod 123, a fixing rod 125 is fixedly connected to one end of the fixing sleeve 121, an extension pipe 122 is fixedly connected to one end of the bent pipe 10, the connecting rod 123 extends into the slot 136 and is inserted into the slot 136, a clamping block 135 penetrates through the connecting plate 133 and extends into the fixing groove 124, the clamping block 135 is clamped with the fixing groove 124, a cleaning plate 2 is slidably connected to the outer surface of the guiding pipe 11, a fixing plate 3 is fixedly connected to the side surface of the economizer body 1, a supporting plate 4 is fixedly connected to the side surface of the economizer body 1, a first connecting pipe 5 and a second connecting pipe 6 are respectively fixedly connected to the side surface of the supporting plate 4, an air inlet pipe 7 and an air outlet pipe 8 are respectively fixedly connected to the side surfaces of the first connecting pipe 5 and the second connecting pipe 6, control valves 9 are respectively arranged on the outer surfaces of the air inlet pipe 7 and the air outlet pipe 8, the first connecting pipe 5, the second connecting pipe 6, the guiding pipe 11 and the bent pipe 10 are communicated with each other, and the air inlet pipe 7 and the air outlet pipe 8 are respectively communicated with the first connecting pipe 5 and the second connecting pipe 6.

[0029] Among them, the connecting rod 123 is fixed in the slot 136, and the fixing rod 125 extends into the mounting sleeve 131, and the two are in an inserted state, thereby improving the stability between the fixing sleeve 121 and the mounting sleeve 131, and at the same time facilitating disassembly and improving work efficiency.

[0030] In this embodiment, according to Figure 1 , Figure 2 , Figure 3 and Figure 4As shown in the figure, the fixing component 13 includes a mounting sleeve 131 fixedly connected to the outer surface of the guiding tube 11. A connecting plate 133 is fixedly connected to the side surface of the mounting sleeve 131. An opening and closing plate 134 is hinged to the side surface of the connecting plate 133. A clamping block 135 is fixedly connected to the side surface of the opening and closing plate 134. A slot 136 is formed in the side surface of the opening and closing plate 134. The mounting sleeve 131 is opposite to the fixing sleeve 121 in position. The fixing rod 125 extends into the mounting sleeve 131 and is inserted into the mounting sleeve 131. A connecting groove 132 is formed in the side surface of the guiding tube 11. The extension tube 122 extends into the connecting groove 132 and is inserted into the connecting groove 132. The guiding tube 11 communicates with the elbow tube 10. One end of the mounting sleeve 131 is fixedly connected with a sealing gasket 137. The sealing gasket 137 abuts against the fixing sleeve 121. The material of the sealing gasket 137 is rubber.

[0031] Among them, a sealing gasket 137 is further arranged between the fixing sleeve 121 and the mounting sleeve 131, thereby improving the sealing effect. Moreover, connecting structures are arranged both inside and outside between the mounting sleeve 131 and the fixing sleeve 121, so that it has high stability during operation.

[0032] The working process of the present utility model: When the low-temperature economizer facilitating the replacement of the heat pipe designed by this solution is in operation, first check whether the device is in normal use, install the device in a suitable working area, connect the elbow tube 10 and the guiding tube 11, insert the extension tube 122 into the connecting groove 132, then insert the fixing rod 125 into the mounting sleeve 131. At the same time, the connecting rod 123 is inserted into the slot 136, and then the opening and closing plate 134 is closed. The clamping block 135 penetrates through the connecting plate 133 and extends into the fixing groove 124, thereby fixing the connecting rod 123 in the slot 136. Among them, the fixing rod 125 extends into the mounting sleeve 131, and the two are in an inserted state, thereby improving the stability between the fixing sleeve 121 and the mounting sleeve 131. At the same time, it is convenient for disassembly, improving the work efficiency. At the same time, a sealing gasket 137 is further arranged between the fixing sleeve 121 and the mounting sleeve 131, thereby improving the sealing effect. Moreover, connecting structures are arranged both inside and outside between the mounting sleeve 131 and the fixing sleeve 121, so that it has high stability during operation. At the same time, it is also convenient for disassembly. A cleaning plate 2 is slidably connected to the outer surface of the guiding tube 11, thereby cleaning the dust on the surface of the guiding tube 11. Among them, the first connecting pipe 5, the second connecting pipe 6, the guiding tube 11 and the elbow tube 10 communicate with each other. At the same time, the air inlet pipe 7 and the air outlet pipe 8 communicate with the first connecting pipe 5 and the second connecting pipe 6 respectively, facilitating the operation. Control valves 9 are arranged on the outer surfaces of the air inlet pipe 7 and the air outlet pipe 8, facilitating the staff to control them.

[0033] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A low-temperature economizer for facilitating replacement of heat pipes, comprising an economizer body (1), characterized in that: A guide pipe (11) and a bent pipe (10) are respectively arranged in the economizer body (1), and a connecting component (12) and a fixing component (13) are respectively arranged on the outer surfaces of the bent pipe (10) and the guide pipe (11), and the connecting component (12) and the fixing component (13) are positioned opposite to each other; The connecting assembly (12) comprises a fixing sleeve (121) fixedly connected to the outer surface of the curved pipe (10), a connecting rod (123) being fixedly connected to the side of the fixing sleeve (121), a fixing groove (124) being provided on the side of the connecting rod (123), one end of the fixing sleeve (121) being fixedly connected to the fixing rod (125), and one end of the curved pipe (10) being fixedly connected to the extension pipe (122); The fixing assembly (13) comprises a mounting sleeve (131) fixedly connected to the outer surface of the guide tube (11); a connecting plate (133) is fixedly connected to the side of the mounting sleeve (131); an opening and closing plate (134) is hingedly connected to the side of the connecting plate (133); a clamping block (135) is fixedly connected to the side of the opening and closing plate (134); a slot (136) is provided on the side of the opening and closing plate (134); the mounting sleeve (131) is opposite to the fixing sleeve (121); the fixing rod (125) extends into the mounting sleeve (131) and is plugged into the mounting sleeve (131).

2. A low-temperature economizer for facilitating replacement of heat pipes according to claim 1, characterized in that: The connecting rod (123) extends into the slot (136) and is plugged into the slot (136); the clamping block (135) penetrates the connecting plate (133) and extends into the fixing slot (124); the clamping block (135) is clamped into the fixing slot (124).

3. A low-temperature economizer for easy replacement of heat pipes according to claim 1, characterized in that: A connecting groove (132) is provided on the side of the guide tube (11), the extension tube (122) extends into the connecting groove (132) and is plugged into the connecting groove (132), and the guide tube (11) and the bent tube (10) are in communication.

4. A low-temperature economizer for facilitating replacement of heat pipes according to claim 1, characterized in that: One end of the installation sleeve (131) is fixedly connected with a sealing gasket (137), the sealing gasket (137) abuts against the fixing sleeve (121), and the sealing gasket (137) is made of rubber.

5. The low-temperature economizer for facilitating replacement of heat pipes according to claim 1, characterized in that: A cleaning plate (2) is slidably connected to the outer surface of the guide tube (11), and a fixing plate (3) is fixedly connected to the side of the economizer body (1).

6. A low-temperature economizer for facilitating replacement of heat pipes according to claim 1, characterized in that: A support plate (4) is fixedly connected to the side of the economizer body (1), and a first connecting pipe (5) and a second connecting pipe (6) are respectively fixedly connected to the side of the support plate (4).

7. A low-temperature economizer for facilitating replacement of heat pipes according to claim 6, characterized in that: An air inlet pipe (7) and an air outlet pipe (8) are fixedly connected to the side surfaces of the first connecting pipe (5) and the second connecting pipe (6), respectively, and control valves (9) are provided on the outer surfaces of the air inlet pipe (7) and the air outlet pipe (8), respectively.

8. A low-temperature economizer for facilitating replacement of heat pipes according to claim 7, characterized in that: The first connecting pipe (5), the second connecting pipe (6), the guide pipe (11) and the bent pipe (10) are in communication with each other, and the air inlet pipe (7) and the air outlet pipe (8) are in communication with the first connecting pipe (5) and the second connecting pipe (6) respectively.

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