Steam superheater with heat recovery function

Abstract

The utility model discloses a steam superheater with a heat recovery function, which comprises a steam superheater, a heat exchanger is arranged behind the steam superheater, a plurality of groups of air inlets are arranged on one side of the heat exchanger, a fixed pipe is connected with an air inlet pipe, the other end of the air inlet pipe is connected with a valve, two sides of the valve are respectively provided with a connecting pipe, and the connecting pipes are connected with the air inlet pipe. And the other ends of the connecting pipes are respectively connected with the air inlets. According to the steam superheater with the heat recovery function, the steam superheater body and the heat exchanger form a communicating structure through the fixing pipe, the air inlet pipe and the connecting pipes under the action of the valve, so that the two sets of connecting pipes work alternately through the valve, and the situation that the interior of a single connecting pipe is overheated due to long-term work is avoided; the filter screen of the device is inserted into the limiting hole through the fixing plate, the clamping block and the elastic limiting block to form an elastic clamping limiting structure with the fixing pipe, so that impurities in the steam superheater are prevented from entering the heat exchanger along with heat through the filter screen, and the quality of recycled heat is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of steam superheaters, in particular to a steam superheater with a heat recovery function. Background Art

[0002] A steam superheater is a device used to increase the temperature and quality of steam. It extracts wet steam from the boiler, heats it, and undergoes a series of heat exchange processes to make the steam reach a superheated state, and then re-injects it into the steam circulation system. After the steam superheater is used, in order to avoid internal heat waste and to avoid directly discharging heat into the air, a recovery device is used to recover its internal heat.

[0003] In the heat recovery process, the heat enters the heat exchanger through the connecting pipe, so that the heat is stored or reused through the heat exchanger. However, in the existing heat recovery process, the inner wall of the connecting pipe is prone to impurities due to long-term use, thereby affecting the heat recovery quality. Therefore, a steam superheater with heat recovery function is proposed to solve the above problem. Utility Model Content

[0004] The utility model aims to provide a steam superheater with heat recovery function to solve the problem in the prior art that in the existing heat recovery process, impurities are easily attached to the inner wall of the connecting pipe after long-term use, thereby affecting the heat recovery quality.

[0005] To achieve the above object, the utility model provides the following technical solution: a steam superheater with a heat recovery function, comprising a steam superheater, a fixed pipe is provided on the steam superheater, a heat exchanger is provided at the rear of the steam superheater, and a plurality of air inlets are provided on one side of the heat exchanger, an air inlet pipe is connected to the fixed pipe, and the other end of the air inlet pipe is connected to a valve, and the valve is provided with connecting pipes on both sides, and the other ends of the connecting pipes are respectively connected to the air inlets;

[0006] The fixed pipe is provided with an opening at the upper end surface, and a fixed plate is placed above the opening, a filter screen is provided at the lower part of the fixed plate, and a material receiving plate is provided at the lower part of the side of the filter screen close to the steam superheater, and clamping blocks are respectively provided at the lower end surface on both sides of the fixed plate, and the clamping blocks are inserted on the fixed pipe, and elastic limiting blocks are respectively provided on the outer side of the clamping blocks, and the fixed pipe is provided with a corresponding limiting hole at the outer side, and the elastic limiting block is inserted in the limiting hole;

[0007] The connecting pipe is respectively provided with rotating blocks at both ends, and connecting rods are respectively provided on the outer wall of the rotating blocks, the other end of the connecting rod is connected to the scraper, the two ends of the connecting pipe are respectively provided with discharge pipes at the lower end surface, and the discharge pipes are respectively provided with spiral covers and dust suction ports, an exhaust pipe is provided below the dust suction port, and the other end of the exhaust pipe is connected to the exhaust fan.

[0008] Preferably, the steam superheater forms a communicating structure with the heat exchanger through a fixed pipe, an air inlet pipe and a connecting pipe under the action of a valve.

[0009] Preferably, the filter screen is inserted into the limiting hole through a fixing plate, a locking block and an elastic limiting block to form an elastic locking limiting structure with the fixing tube.

[0010] Preferably, one end of the scraper is in contact with the inner wall of the connecting tube, and the scraper forms a rotating structure in the connecting tube through a rotating block and a connecting rod.

[0011] Preferably, the inner wall of the discharge pipe is provided with a thread that matches the screw cover, and the interior of the connecting pipe forms a suction structure through the exhaust pipe and the dust suction port under the action of the exhaust fan.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows: the steam superheater with heat recovery function forms a connecting structure with the heat exchanger through the fixed pipe, the air intake pipe and the connecting pipe under the action of the valve, so that the two groups of connecting pipes work alternately through the valve, thereby avoiding long-term operation of a single connecting pipe and causing internal overheating. The filter of the device is inserted into the limiting hole through the fixed plate, the clamping block and the elastic limiting block to form an elastic clamping limiting structure with the fixed pipe, thereby preventing impurities in the steam superheater from entering the heat exchanger with the heat through the filter, thereby ensuring the quality of recovered heat. One end of the scraper of the device is attached to the inner wall of the connecting pipe, and the scraper forms a rotating structure in the connecting pipe through the rotating block and the connecting rod, thereby facilitating the cleaning of the inner wall of the connecting pipe through the rotating scraper, and processing the impurities generated during the cleaning process through the dust suction port. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a side structural schematic diagram of a steam superheater with heat recovery function according to the utility model;

[0014] Figure 2 This is a schematic diagram of a top view of a steam superheater with a heat recovery function according to the utility model;

[0015] Figure 3 This is a schematic diagram of the structure of a steam superheater connecting pipe assembly with a heat recovery function according to the utility model;

[0016] Figure 4 This is a schematic diagram of the structure of a steam superheater scraper assembly with heat recovery function according to the utility model;

[0017] Figure 5 The utility model is a schematic diagram of the structure of a steam superheater filter clamping assembly with a heat recovery function.

[0018] In the figure: 1. steam superheater, 2. heat exchanger, 3. air inlet, 4. fixed pipe, 5. air inlet pipe, 6. valve, 7. connecting pipe, 8. fixed plate, 9. filter, 10. snap block, 11. elastic limit block, 12. rotating block, 13. scraper, 14. discharge pipe, 15. screw cover, 16. dust suction port. DETAILED DESCRIPTION

[0019] 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.

[0020] See also Figure 1-5 The utility model provides a technical solution: a steam superheater with heat recovery function, comprising a steam superheater 1, a fixed pipe 4 is provided on the steam superheater 1, a heat exchanger 2 is provided at the rear of the steam superheater 1, and the heat exchanger 2 is provided with multiple groups of air inlets 3 on one side, an air inlet pipe 5 is connected to the fixed pipe 4, and the other end of the air inlet pipe 5 is connected to a valve 6, the valve 6 is respectively provided with connecting pipes 7 on both sides, and the other ends of the connecting pipes 7 are respectively connected to the air inlets 3.

[0021] Furthermore, under the action of the valve 6, the steam superheater 1 forms a connecting structure with the heat exchanger 2 through the fixed pipe 4, the air intake pipe 5, and the connecting pipe 7, so that heat is recovered alternately through the two groups of connecting pipes 7, thereby avoiding damage to the single connecting pipe 7 due to excessive temperature.

[0022] The fixed tube 4 is provided with an opening at the upper end surface, and a fixed plate 8 is placed above the opening, a filter screen 9 is provided at the lower part of the fixed plate 8, and a material receiving plate is provided at the lower part of the filter screen 9 close to the steam superheater 1, and clamping blocks 10 are respectively provided on both sides of the fixed plate 8 at the lower end surface, and the clamping blocks 10 are inserted into the fixed tube 4, and elastic limit blocks 11 are respectively provided on the outer side of the clamping blocks 10, and the fixed tube 4 has corresponding limit holes on the outer side, and the elastic limit blocks 11 are inserted into the limit holes.

[0023] Furthermore, the filter 9 is inserted into the limiting hole through the fixing plate 8, the locking block 10, and the elastic limiting block 11 to form an elastic locking limiting structure with the fixed tube 4, so that the impurities in the heat are blocked by the locking installed filter 9, thereby avoiding affecting the quality of the recovered heat.

[0024] The connecting tube 7 is respectively provided with a rotating block 12 at both ends, and a connecting rod is respectively provided on the outer wall of the rotating block 12, and the other end of the connecting rod is connected to the scraper 13, and the two ends of the connecting tube 7 are respectively provided with a discharge pipe 14 at the lower end surface, and a screw cover 15 and a dust suction port 16 are respectively inserted in the discharge pipe 14, an exhaust pipe is provided below the dust suction port 16, and the other end of the exhaust pipe is connected to the exhaust fan.

[0025] Furthermore, one end of the scraper 13 is attached to the inner wall of the connecting pipe 7, and the scraper 13 forms a rotating structure in the connecting pipe 7 through the rotating block 12 and the connecting rod, so that the inner wall of the connecting pipe 7 can be quickly cleaned by the rotating scraper 13, thereby avoiding excessive dust and other impurities from affecting the heat recovery process.

[0026] Furthermore, the inner wall of the discharge pipe 14 is provided with a thread that matches the screw cover 15, and the interior of the connecting pipe 7 forms a suction structure through the exhaust pipe and the dust suction port 16 under the action of the exhaust fan, so that the impurities generated during the operation of the scraper 13 are processed through the dust suction port 16 and its related components.

[0027] Working principle: When using a steam superheater with heat recovery function, the heat of the steam superheater 1 enters the connecting pipe 7 through the fixed pipe 4, the air inlet pipe 5, and the valve 6 during the recovery process, so that the recovered heat is stored or reused through the heat exchanger 2. During the heat recovery process, the two groups of connecting pipes 7 can be operated alternately through the valve 6, thereby avoiding the internal temperature of the connecting pipe 7 being too high due to long-term operation; and when the heat is recovered, the impurities inside can be filtered through the filter 9, and the impurities blocked by the filter 9 can be supported by the material receiving plate, thereby ensuring the quality of the recovered heat. If the filter 9 is used for a long time If it becomes clogged, the elastic limit block 11 is pressed to replace the filter screen 9, and the blocked impurities are quickly processed through the receiving plate; when the connecting pipe 7 is used for a long time and dust and other impurities are attached to its interior, the rotating block 12 can be rotated, thereby driving the scraper 13 to rotate through the rotating block 12, so that the inner wall of the connecting pipe 7 can be quickly processed by the scraper 13, and at the same time, the screw cover 15 can be removed by screwing, so that the dust suction port 16 can be inserted into the discharge pipe 14, so as to collect the impurities generated during the cleaning process of the connecting pipe 7. This is the use process of the steam superheater with heat recovery function.

[0028] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A steam superheater with a heat recovery function, comprising a steam superheater (1), the steam superheater (1) being provided with a fixed pipe (4), the steam superheater (1) being provided with a heat exchanger (2) at the rear, and the heat exchanger (2) being provided with a plurality of air inlets (3) at one side, characterized in that: The fixed pipe (4) is connected to an air intake pipe (5), and the other end of the air intake pipe (5) is connected to a valve (6); the valve (6) is provided with connecting pipes (7) on both sides, and the other ends of the connecting pipes (7) are respectively connected to the air intake port (3); The fixed tube (4) is provided with an opening at the upper end surface, and a fixed plate (8) is placed above the opening, a filter screen (9) is provided at the lower part of the fixed plate (8), and a material receiving plate is provided at the lower part of the filter screen (9) on the side close to the steam superheater (1), and snap-fit ​​blocks (10) are provided at the lower end surfaces of the two sides of the fixed plate (8), and the snap-fit ​​blocks (10) are inserted into the fixed tube (4), and elastic limit blocks (11) are provided at the outer sides of the snap-fit ​​blocks (10), and the fixed tube (4) is provided with corresponding limit holes at the outer side, and the elastic limit blocks (11) are inserted into the limit holes; The connecting tube (7) is respectively provided with a rotating block (12) at both ends, and a connecting rod is respectively provided on the outer wall of the rotating block (12), and the other end of the connecting rod is connected to a scraper (13). The connecting tube (7) is respectively provided with a discharge pipe (14) at the lower end surface at both ends, and a screw cover (15) and a dust suction port (16) are respectively inserted in the discharge pipe (14), and an exhaust pipe is provided below the dust suction port (16), and the other end of the exhaust pipe is connected to an exhaust fan.

2. A steam superheater with heat recovery function according to claim 1, characterized in that: The steam superheater (1) forms a communication structure with the heat exchanger (2) through the fixed pipe (4), the air inlet pipe (5) and the connecting pipe (7) under the action of the valve (6).

3. The steam superheater with heat recovery function according to claim 1, characterized in that: The filter screen (9) is inserted into the limiting hole through the fixing plate (8), the locking block (10) and the elastic limiting block (11) to form an elastic locking limiting structure with the fixing tube (4).

4. The steam superheater with heat recovery function according to claim 1, characterized in that: One end of the scraper (13) is fitted to the inner wall of the connecting tube (7), and the scraper (13) forms a rotating structure in the connecting tube (7) through a rotating block (12) and a connecting rod.

5. The steam superheater with heat recovery function according to claim 1, characterized in that: The inner wall of the discharge pipe (14) is provided with a thread that fits with the screw cover (15), and the interior of the connecting pipe (7) forms a suction structure through the exhaust pipe and the dust suction port (16) under the action of the exhaust fan.

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