Evaporator with air filtering function

Abstract

The evaporator with the air filtering function comprises an evaporator body, an air inlet pipe is fixedly installed below one side of the evaporator body, an exhaust pipe is fixedly installed below the side, opposite to the air inlet pipe, of the evaporator body, and a liquid inlet pipe is fixedly installed at the position, above the exhaust pipe, of the evaporator body. A discharging pipe is fixedly installed at the top of the evaporator body, the ends, located in the evaporator body, of the air inlet pipe and the exhaust pipe are each fixedly provided with a flow dividing pipe, the two flow dividing pipes are communicated through a plurality of heat exchange pipes, a filtering device is movably installed at the air inlet end of the air inlet pipe, and supporting columns are fixedly installed on the periphery of the bottom of the evaporator body. The filter device is mounted at the air inlet end of the air inlet pipe, so that dust is isolated at the air inlet when the evaporator absorbs heat released by fuel combustion, blockage caused by the fact that the dust enters a pipeline in the evaporator is avoided, the structure is simple, and practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of evaporators, in particular to an evaporator with an air filtering function. Background Art

[0002] The evaporator is an important component in the boiler. Its main function is to absorb the heat released by the combustion of fuel and convert water into steam, which is supplied to the boiler for power generation or other industrial applications.

[0003] However, the traditional evaporator does not have a filtering structure. When absorbing the heat released by the combustion of fuel, it will be mixed with a certain amount of dust, causing the evaporator pipeline to be blocked, resulting in the heat not being transferred to the evaporator in time, affecting the normal operation of the evaporator. Utility Model Content

[0004] The utility model aims to provide an evaporator with an air filtering function, which effectively solves the problem that dust is carried into the pipeline when the evaporator absorbs heat released by fuel combustion, causing pipeline blockage, so that the evaporator can continue to work normally, has a simple structure and strong practicality.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an evaporator with air filtering function, comprising an evaporator body, an air inlet pipe is fixedly installed below one side of the evaporator body, an exhaust pipe is fixedly installed below the side opposite to the air inlet pipe of the evaporator body, a liquid inlet pipe is fixedly installed above the exhaust pipe of the evaporator body, a discharge pipe is fixedly installed on the top of the evaporator body, a shunt pipe is fixedly installed at the ends of the air inlet pipe and the exhaust pipe located in the evaporator body, the two shunt pipes are connected through a plurality of heat exchange pipes, a filtering device is movably installed at the air inlet end of the air inlet pipe, and support columns are fixedly installed around the bottom of the evaporator body;

[0006] The filtering device includes a filter plate, a support frame and a cylinder. The air inlet end of the air inlet pipe is provided with a slide groove which passes through from top to bottom. The filter plate is slidably installed in the slide groove. Two support frames are provided, which are respectively installed at the positions corresponding to the slide grooves on the upper and lower sides of the air inlet pipe. The cylinder is fixedly installed with one of the support frames away from the side of the air inlet pipe. A push rod is movably installed at the output end of the cylinder. The end of the push rod away from the cylinder passes through the support frame and is fixedly connected to the side of the filter plate facing the cylinder.

[0007] When the fuel burns and the heat released enters the air inlet, it is filtered by the filter device in the air inlet and then enters the diverter pipe and diverted to each heat exchange tube, heating the heat exchange tube. Then, it enters the diverter pipe on the side of the exhaust pipe from the heat exchange tube and is discharged from the exhaust pipe. Water is injected through the liquid inlet pipe, and the heat exchange tube heats the liquid to make it boil, thereby generating steam. The steam rises and is discharged from the discharge pipe. The structure is simple and practical.

[0008] Preferably, the heat exchange tubes are parallel to each other and arranged in a staggered manner on the upper and lower sides of the two diverter tubes. Multiple heat exchange tubes are used to increase the contact area with water, accelerate the boiling of water, and improve the evaporation efficiency.

[0009] Preferably, the thickness of the filter plate is the same as the thickness of the chute, the width of the filter plate is the same as the width of the chute, and the height of the filter plate is the same as the distance from the inner bottom of one of the support frames to the edge of the chute away from the support frame. The contact surface of the filter plate and the chute fits tightly to prevent dust from passing through the gap between the filter plate and the chute and entering the pipeline inside the evaporator.

[0010] Preferably, a through mounting hole is symmetrically opened on both upper and lower sides of the filter plate, the diameter of the mounting hole is the same as the inner diameter of the air inlet pipe, and a filter screen is detachably mounted in the mounting hole, so that when the cylinder is extended or retracted and drives the filter plate to slide to the bottom, a filter screen is exactly in the air inlet pipe.

[0011] Preferably, a maintenance door is installed on one side of the support frame away from the evaporator body, so that the staff can clean or replace the filter screen through the maintenance door.

[0012] Preferably, a drain pipe is fixedly installed in the middle of the bottom of the evaporator body, so that the water inside the evaporator can be drained out of the evaporator.

[0013] Preferably, a valve is installed on the drain pipe. When the evaporator is working, the valve is closed to prevent water from flowing out of the drain pipe, and when the water in the evaporator needs to be discharged, the valve is opened.

[0014] Compared with the prior art, the utility model adopts the above technical solution and has the following technical effects:

[0015] The utility model installs a filter plate at the air inlet end of the air inlet pipe, so that when the evaporator absorbs the heat released by the combustion of the fuel, the dust is isolated at the air inlet, thereby preventing the dust from entering the pipe inside the evaporator and causing blockage; two filter screens are arranged on the filter plate, so that the filter plate and the air inlet pipe are slidably connected and the sliding of the filter plate is controlled by a cylinder. When a filter screen has been working for a certain period of time and is blocked, the cylinder can promptly control the movement of the filter plate to replace the filter screen, thereby ensuring that the dust in the air inlet pipe can be continuously filtered; an inspection door is arranged on the support frame, so that the staff can clean or replace the blocked filter screen through the inspection door, thereby ensuring the continuous normal operation of the evaporator. The utility model has a simple structure and strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a front cross-sectional schematic diagram of the utility model;

[0017] Figure 2 It is a top view schematic diagram of the flow divider tube and the heat exchange tube of the utility model;

[0018] Figure 3 It is a cross-sectional schematic diagram of the filtering device of the utility model.

[0019] Explanation of the accompanying reference numerals: 1. Evaporator body; 2. Air inlet pipe; 3. Exhaust pipe; 4. Liquid inlet pipe; 5. Discharge pipe; 6. Diverter pipe; 7. Heat exchange pipe; 8. Filter device; 9. Support column; 10. Filter plate; 11. Support frame; 12. Cylinder; 13. Slide; 14. Push rod; 15. Mounting hole; 16. Filter screen; 17. Inspection door; 18. Discharge pipe; 19. Valve. DETAILED DESCRIPTION

[0020] 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.

[0021] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which this application can be implemented. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in this application without affecting the effects and purposes that can be achieved by this application.

[0022] See also Figure 1-3The utility model provides a technical solution: comprising an evaporator body 1, an air inlet pipe 2 is fixedly installed at the lower side of the evaporator body 1, an exhaust pipe 3 is fixedly installed at the lower side of the evaporator body 1 opposite to the air inlet pipe 2, a liquid inlet pipe 4 is fixedly installed above the exhaust pipe 3 of the evaporator body 1, a discharge pipe 5 is fixedly installed on the top of the evaporator body 1, a shunt pipe 6 is fixedly installed at the ends of the air inlet pipe 2 and the exhaust pipe 3 located in the evaporator body 1, and the two shunt pipes 6 are connected through a plurality of heat exchange pipes 7, a filter device 8 is movably installed at the air inlet end of the air inlet pipe 2, and support columns 9 are fixedly installed around the bottom of the evaporator body 1;

[0023] The filtering device 8 includes a filter plate 10, a support frame 11 and a cylinder 12. The air intake end of the air intake pipe 2 is provided with a slide groove 13 which passes through from top to bottom. The filter plate 10 is slidably installed in the slide groove 13. Two support frames 11 are provided, which are respectively installed at the positions of the slide groove 13 on the upper and lower sides of the air intake pipe 2. The cylinder 12 is fixedly installed with one of the support frames 11 on the side away from the air intake pipe 2. A push rod 14 is movably installed at the output end of the cylinder 12. The end of the push rod 14 away from the cylinder 12 passes through the support frame 11 and is fixedly connected to the side of the filter plate 10 facing the cylinder 12.

[0024] The heat exchange tubes 7 are installed on the upper and lower sides of the two diverter tubes 6 in parallel and staggered arrangement.

[0025] The thickness of the filter plate 10 is the same as the thickness of the slide 13 , the width of the filter plate 10 is the same as the width of the slide 13 , and the height of the filter plate 10 is the same as the distance from the inner bottom of one of the support frames 11 to the edge of the slide 13 away from the support frame 11 .

[0026] A through mounting hole 15 is symmetrically provided on both upper and lower sides of the filter plate 10 . The diameter of the mounting hole 15 is the same as the inner diameter of the air inlet pipe 2 . A filter screen 16 is detachably mounted in the mounting hole 15 .

[0027] An inspection door 17 is installed on one side of the support frame 11 away from the evaporator body 1 .

[0028] A drain pipe 18 is fixedly installed in the middle of the bottom of the evaporator body 1 .

[0029] A valve 19 is installed on the discharge pipe 18 .

[0030] Working principle or structural principle: the heat released after the fuel is burned enters the air inlet pipe 2 of the evaporator body 1, enters the shunt pipe 6 after being filtered by the filter device 8, and then enters the heat exchange pipe 7 after being diverted by the shunt pipe 6 to heat the heat exchange pipe 7, and then enters the shunt pipe 6 close to the exhaust pipe 3 and is discharged through the exhaust pipe 3. Water enters the evaporator body 1 through the liquid inlet pipe 4, and is heated and boiled by the heat exchange pipe 7 to generate steam. The steam rises and is discharged from the discharge pipe 5. When a large amount of dust accumulates on the filter screen 16 in the air inlet pipe 2 and is blocked, the cylinder 12 is controlled to work, and the cylinder 12 is driven The movable filter plate 10 slides in the slide groove 13, so that another filter screen 16 on the filter plate 10 enters the air intake pipe 2 for filtering. The blocked filter screen 16 is located in the corresponding support frame 11. The staff opens the inspection door 17 of the support frame 11 to clean the blocked filter screen 16. After cleaning, the inspection door 17 is closed and the filter screen 16 in the air intake pipe is replaced again. When the evaporator is not working, the valve 19 is opened to drain the water inside the evaporator. The device avoids the problem of dust entering the pipeline inside the evaporator and causing pipeline blockage, ensuring the continuous normal operation of the evaporator. It has a simple structure and strong practicality. .

[0031] So far, the embodiments of the utility model have been described in detail in conjunction with the accompanying drawings. It should be noted that the implementation methods not shown or described in the drawings or the body of the specification are all forms known to ordinary technicians in the relevant technical field and are not described in detail. In addition, the above definitions of each component are not limited to the various specific structures, shapes or methods mentioned in the embodiments, and ordinary technicians in the field can simply change or replace them.

[0032] Those skilled in the art will appreciate that the features described in the various embodiments and / or claims of the present invention may be combined and / or combined in various ways, even if such combinations and / or combinations are not explicitly described in the present invention. In particular, the features described in the various embodiments and / or claims of the present invention may be combined and / or combined in various ways without departing from the spirit and teachings of the present invention. All of these combinations and / or combinations fall within the scope of the present invention.

[0033] The specific embodiments described above further illustrate the purpose, technical solutions and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An evaporator with air filtering function, comprising an evaporator body (1), characterized in that: An air inlet pipe (2) is fixedly mounted below one side of the evaporator body (1), an exhaust pipe (3) is fixedly mounted below the side opposite to the evaporator body (1) and the air inlet pipe (2), a liquid inlet pipe (4) is fixedly mounted above the exhaust pipe (3) on the evaporator body (1), a discharge pipe (5) is fixedly mounted on the top of the evaporator body (1), a shunt pipe (6) is fixedly mounted at the ends of the air inlet pipe (2) and the exhaust pipe (3) located inside the evaporator body (1), the two shunt pipes (6) are connected via a plurality of heat exchange pipes (7), a filter device (8) is movably mounted at the air inlet end of the air inlet pipe (2), and support columns (9) are fixedly mounted around the bottom of the evaporator body (1); The filtering device (8) comprises a filter plate (10), a support frame (11) and a cylinder (12); the air inlet end of the air inlet pipe (2) is provided with a slide groove (13) which passes through the upper and lower parts; the filter plate (10) is slidably mounted in the slide groove (13); two support frames (11) are provided, which are respectively mounted at positions corresponding to the slide groove (13) on the upper and lower sides of the air inlet pipe (2); the cylinder (12) is fixedly mounted with one of the support frames (11) on a side away from the air inlet pipe (2); a push rod (14) is movably mounted on the output end of the cylinder (12); the end of the push rod (14) which is away from the cylinder (12) passes through the support frame (11) and is fixedly connected to the side of the filter plate (10) facing the cylinder (12).

2. The evaporator with air filtering function according to claim 1, characterized in that: The heat exchange tubes (7) are installed in parallel and staggered arrangement on the upper and lower sides of the two flow diversion tubes (6).

3. The evaporator with air filtering function according to claim 1, characterized in that: The thickness of the filter plate (10) is the same as the thickness of the slide groove (13), the width of the filter plate (10) is the same as the width of the slide groove (13), and the height of the filter plate (10) is the same as the distance from the inner bottom of one of the support frames (11) to the edge of one side of the slide groove (13) away from the support frame (11).

4. The evaporator with air filtering function according to claim 3, characterized in that: A through mounting hole (15) is symmetrically provided on both upper and lower sides of the filter plate (10); the diameter of the mounting hole (15) is the same as the inner diameter of the air intake pipe (2); and a filter screen (16) is detachably mounted in the mounting hole (15).

5. The evaporator with air filtering function according to claim 1, characterized in that: An inspection door (17) is installed on one side of the two support frames (11) away from the evaporator body (1).

6. The evaporator with air filtering function according to claim 1, characterized in that: A liquid drain pipe (18) is fixedly installed in the middle of the bottom of the evaporator body (1).

7. The evaporator with air filtering function according to claim 6, characterized in that: A valve (19) is installed on the liquid discharge pipe (18).

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