Waste heat recovery economizer

Abstract

The utility model provides a waste heat recovery economizer, and belongs to the technical field of economizers. The waste heat recovery economizer comprises the recovery assembly and the filtering assembly, firstly, when flowing to one side of the economizer body, smoke exhausted by a furnace body is filtered through the filtering plate, and particulate matter in gas filtered through the filtering plate can be greatly reduced; according to the coal economizer, the fixed cover is arranged on the surface of the coal economizer body, so that the gas flowing into the fixed cover does not greatly abrade the surface of the coal economizer body any more, and the coal economizer body can keep excellent waste heat recovery performance for a long time; the filter plate is in sliding clamping connection with the fixed cover through the elastic clamping piece, the filter plate can be conveniently replaced or cleaned in a clamping connection mode, the filter plate can be rapidly disassembled and assembled without a special tool, the filter plate is convenient to disassemble and assemble, the labor force is reduced, and the practicability is improved.

Description

Technical Field

[0001] The present application relates to the field of economizers, and in particular, to a waste heat recovery economizer. Background Art

[0002] An economizer is a device installed at the lower part of the flue at the rear of the boiler to recover the waste heat of the exhaust gas. It heats the boiler feed water into a heating surface of saturated water under the drum pressure. Since it absorbs the heat of the high-temperature flue gas, the exhaust temperature of the flue gas is reduced, energy is saved and efficiency is improved, so it is called an economizer. For example, a waste heat boiler economizer with Chinese patent application number CN202120701816.2 comprises an economizer body, a steam chamber is fixedly connected to the edge of one side of the top of the economizer body, a pressure gauge is fixedly connected to the top of the steam chamber, a pressure relief valve is fixedly connected to the side of the top of the steam chamber close to the pressure gauge, an air duct is fixedly connected to the side of the pressure relief valve away from the steam chamber, and a pneumatic cylinder is fixedly connected to the side of the air duct away from the steam chamber. In the utility model, after the pressure gauge detects that the steam pressure introduced into the steam chamber through the economizer body reaches the set value, the pressure relief valve is started to allow the steam to be gradually introduced into the pneumatic cylinder through the air guide pipe, so that the pneumatic push rod in the pneumatic cylinder is pushed out by the steam, and at the same time the pneumatic push rod also pushes the scraper frame to scrape off the dust on the surface of the economizer body, thereby avoiding the accumulation of dust on the economizer body, which is beneficial to enable the economizer body to maintain excellent waste heat recovery performance for a long time.

[0003] However, the above scheme still has certain defects: first, the top of the fixed cover is fixed with a dust filter by bolts, and the user needs special tools for disassembly and installation, which increases the labor force. Moreover, the dust filter will adhere to a lot of dust and particulate matter on the surface after long-term use, which affects the filtering effect and reduces the practicality. Utility Model Content

[0004] In order to make up for the above shortcomings, the present application provides a waste heat recovery economizer, which aims to improve the problem in the related technology that the top of the fixed cover is fixed with a dust filter by bolts, and the user needs special tools for disassembly and installation, which increases the labor force. The dust filter will adhere to a lot of dust and particulate matter on the surface after long-term use, affecting the filtering effect, thereby reducing the practicality.

[0005] An embodiment of the present application provides a waste heat recovery economizer including a recovery component and a filter component.

[0006] The recovery assembly includes a fixed cover and an economizer body, the economizer body is arranged inside the fixed cover, the filter assembly includes an elastic clamp and a filter plate, the elastic clamp is arranged on both sides of the fixed cover, and the filter plate is slidably connected with the fixed cover through the elastic clamp.

[0007] In a specific embodiment, limiting grooves are provided at both ends of the fixing cover.

[0008] In the above implementation process, limiting grooves are provided at both ends of the fixed cover, and the limiting grooves can play a limiting role.

[0009] In a specific embodiment, sliding grooves are correspondingly arranged at both ends of the fixed cover.

[0010] In the above implementation process, sliding grooves are correspondingly arranged at both ends of the fixed cover, and the sliding grooves can play a connecting role.

[0011] In a specific embodiment, the elastic clamp includes a bracket, an insertion rod and a spring, the insertion rod is connected to the bracket and one side of the fixed cover, one end of the spring is fixedly connected to the bracket, and the other end of the spring is fixedly connected to the insertion rod.

[0012] In the above implementation process, the insertion rod and the spring can achieve a clamping effect.

[0013] In a specific embodiment, the filter plate includes a frame and a filter net, and the filter net is arranged inside the frame.

[0014] In the above implementation process, the frame can play a connecting role, and the filter net can play a role in filtering dust and particulate matter.

[0015] In a specific implementation, limiting blocks are provided at both ends of the frame, the limiting blocks are slidably connected to the limiting grooves, a through hole is provided on one side of the limiting block, and the insertion rod is slidably connected to the through hole.

[0016] In the above implementation process, limit blocks are set at both ends of the frame. When the filter needs to be disassembled, the user can pull the plug rod to separate the plug rod from the through hole, and then separate the limit block from the limit groove, so that the frame and the filter can be disassembled. During installation, the limit block is slid into the interior of the limit groove, and the elastic force of the spring pushes the plug rod into the interior of the through hole to fix the frame.

[0017] In a specific implementation manner, sliding blocks are correspondingly provided at both ends of the frame, and the sliding blocks are slidably connected to the sliding grooves.

[0018] In the above implementation process, sliders are correspondingly provided at both ends of the frame, and the sliders can play a connecting role.

[0019] In a specific embodiment, handles are provided at both ends of the frame.

[0020] In the above implementation process, handles are provided at both ends of the frame, and the handles are provided to facilitate lifting the frame.

[0021] Compared with the prior art, the present application has the following beneficial effects: first, the flue gas discharged from the furnace is first filtered through the filter plate when flowing to the side of the economizer body. The particulate matter in the gas filtered by the filter plate will be greatly reduced, so that the gas flowing into the fixed cover will no longer cause greater wear on the surface of the economizer body, which is beneficial for the economizer body to maintain excellent waste heat recovery performance for a long time. Since the filter plate will be attached with a lot of dust and particulate matter on the surface after long-term use, it needs to be cleaned or replaced. The filter plate is slidably connected to the fixed cover through an elastic clip, and the clip-on method is convenient for replacing or cleaning the filter plate. The filter plate can be quickly disassembled and installed without the use of special tools, so the filter plate is more convenient to disassemble and install, which reduces labor and improves practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the implementation methods of the present application, the drawings required for use in the implementation methods will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is a schematic diagram of the structure of a waste heat recovery economizer provided in an embodiment of the present application;

[0024] Figure 2 A schematic diagram of the fixed cover structure provided in an embodiment of the present application;

[0025] Figure 3 A schematic diagram of the elastic clip structure provided in the embodiment of the present application;

[0026] Figure 4 A schematic diagram of the filter plate structure provided in an embodiment of the present application.

[0027] In the figure: 100-recovery component; 110-fixed cover; 111-limiting groove; 112-slide groove; 120-economizer body; 200-filter component; 210-elastic clamp; 211-bracket; 212-insertion rod; 213-spring; 220-filter plate; 221-frame; 2211-limiting block; 2212-through hole; 2213-slider; 2214-handle; 222-filter net. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application.

[0029] In order to make the purpose, technical solutions and advantages of the implementation methods of this application clearer, the technical solutions in the implementation methods of this application will be clearly and completely described below in conjunction with the drawings in the implementation methods of this application. Obviously, the described implementation methods are part of the implementation methods of this application, not all of the implementation methods. Based on the implementation methods in this application, all other implementation methods obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0030] See also Figure 1-4 The present application provides a waste heat recovery economizer including a recovery component 100 and a filter component 200. The recovery component 100 can recycle waste heat, and the filter component 200 can filter dust and particulate matter.

[0031] See also Figure 1-2 The recovery assembly 100 includes a fixed cover 110 and an economizer body 120. The economizer body 120 is arranged inside the fixed cover 110. Limiting grooves 111 are arranged at both ends of the fixed cover 110. The limiting grooves 111 can play a limiting role. Slide grooves 112 are correspondingly arranged at both ends of the fixed cover 110. The slide grooves 112 can play a connecting role.

[0032] See also Figure 1 , Figure 3 and Figure 4 The filter assembly 200 includes an elastic clamp 210 and a filter plate 220. The elastic clamp 210 is arranged on both sides of the fixed cover 110. The filter plate 220 is slidably connected with the fixed cover 110 through the elastic clamp 210. The elastic clamp 210 includes a bracket 211, a plug rod 212 and a spring 213. The plug rod 212 is connected to the bracket 211 and one side of the fixed cover 110. One end of the spring 213 is fixedly connected to the bracket 211, and the other end of the spring 213 is fixedly connected to the plug rod 212. The plug rod 212 and the spring 213 can achieve a clamping effect.

[0033] In some specific embodiments, the filter plate 220 includes a frame 221 and a filter screen 222. The filter screen 222 is arranged inside the frame 221. The frame 221 can be used for connection. The filter screen 222 can filter dust and particulate matter. Limit blocks 2211 are arranged at both ends of the frame 221. The limit blocks 2211 are slidably connected to the limit grooves 111. A through hole 2212 is arranged on one side of the limit block 2211. The insertion rod 212 is slidably connected to the through hole 2212. When the filter screen 222 needs to be disassembled, the user can pull the insertion rod 212 so that the insertion rod 212 and the through hole 2 212 is separated, and then the limit block 2211 is separated from the limit groove 111, so that the frame 221 and the filter screen 222 can be disassembled. During installation, the limit block 2211 is slid into the interior of the limit groove 111, and the elastic force of the spring 213 pushes the insertion rod 212 to insert into the interior of the through hole 2212 to fix the frame 221. Slide blocks 2213 are correspondingly provided at both ends of the frame 221. The slide block 2213 is slidably connected with the slide groove 112. The setting of the slide block 2213 can play a connecting role. Handles 2214 are provided at both ends of the frame 221. The setting of the handles 2214 is convenient for lifting the frame 221.

[0034] The working principle of the waste heat recovery economizer is as follows: first, when the flue gas discharged from the furnace flows to the side of the economizer body 120, it is first filtered by the filter plate 220. The particulate matter in the gas filtered by the filter plate 220 will be greatly reduced, so that the gas flowing into the fixed cover 110 will no longer cause greater wear on the surface of the economizer body 120, which is conducive to the economizer body 120 maintaining excellent waste heat recovery performance for a long time. Due to the long-term use of the filter plate 220, a lot of dust and particulate matter will adhere to the surface, which needs to be cleaned or replaced. The user can pull the plug rod 212 so that the plug rod 212 By separating the filter plate 220 from the through hole 2212 and then separating the limit block 2211 from the limit groove 111, the frame 221 and the filter screen 222 can be disassembled. During installation, the limit block 2211 is slid into the inside of the limit groove 111, and the elastic force of the spring 213 is used to push the insertion rod 212 into the inside of the through hole 2212 to fix the frame 221. The card connection method is used to facilitate the replacement or cleaning of the filter plate 220. The filter plate 220 can be quickly disassembled and installed without using special tools, so that the filter plate 220 is convenient to disassemble and install, which reduces labor and improves practicality.

[0035] The above description is only an embodiment of the present application and is not intended to limit the scope of protection of the present application. For those skilled in the art, the present application may have various changes and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the scope of protection of the present application. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0036] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A waste heat recovery economizer, characterized in that: include A recovery assembly (100), the recovery assembly (100) comprising a fixed cover (110) and an economizer body (120), the economizer body (120) being arranged inside the fixed cover (110); A filter assembly (200), the filter assembly (200) comprising an elastic clamp (210) and a filter plate (220), the elastic clamp (210) being arranged on both sides of the fixed cover (110), and the filter plate (220) being slidably clamped with the fixed cover (110) via the elastic clamp (210).

2. A waste heat recovery economizer according to claim 1, characterized in that: Limiting grooves (111) are provided at both ends of the fixing cover (110).

3. A waste heat recovery economizer according to claim 2, characterized in that: Slide grooves (112) are correspondingly arranged at both ends of the fixed cover (110).

4. A waste heat recovery economizer according to claim 3, characterized in that: The elastic clamp (210) comprises a bracket (211), an insertion rod (212) and a spring (213); the insertion rod (212) is connected through the bracket (211) and one side of the fixed cover (110); one end of the spring (213) is fixedly connected to the bracket (211), and the other end of the spring (213) is fixedly connected to the insertion rod (212).

5. A waste heat recovery economizer according to claim 4, characterized in that: The filter plate (220) comprises a frame (221) and a filter net (222), and the filter net (222) is arranged inside the frame (221).

6. A waste heat recovery economizer according to claim 5, characterized in that: Limiting blocks (2211) are provided at both ends of the frame (221), the limiting blocks (2211) are slidably connected to the limiting grooves (111), a through hole (2212) is provided on one side of the limiting block (2211), and the insertion rod (212) is slidably connected to the through hole (2212).

7. The waste heat recovery economizer according to claim 6, characterized in that: Slide blocks (2213) are correspondingly arranged at both ends of the frame (221), and the slide blocks (2213) are slidably connected to the slide grooves (112).

8. The waste heat recovery economizer according to claim 7, characterized in that: Handles (2214) are provided at both ends of the frame (221).

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