Plate type preheater with variable corrugation radian

Abstract

The utility model relates to the technical field of preheaters, and discloses a corrugated radian variable plate type preheater which comprises two sets of main supporting plates, two sets of side supporting plates are connected to the opposite sides of the two sets of main supporting plates, input pipes are connected to the left side and the right side of the main supporting plate on the lower side, and output pipes are connected to the left side and the right side of the main supporting plate on the lower side. According to the scheme, connection is carried out through the mode of springs and clamping blocks, use of nuts is reduced, the heat exchange plate sets are more convenient and faster to replace and maintain in the later period, the heat exchange efficiency is improved, the heat exchange efficiency is improved, and the heat exchange efficiency is improved. And meanwhile, the group number of the heat exchange plates can be set according to needs, the subsequent use efficiency and quality of the heat exchange plates are improved, the dismounting convenience of the device is not affected by the group number of the heat exchange plates, and the inconvenience that a nut needs to be rotated for many circles when the group number of traditional heat exchange plates is small is changed.

Description

Technical Field

[0001] The utility model belongs to the technical field of preheaters, in particular to a corrugated arc variable plate preheater. Background Art

[0002] Plate heat exchanger is a high-efficiency heat exchanger composed of a series of metal sheets with a certain corrugated shape. Thin rectangular channels are formed between various plates, and heat is exchanged through the plates. Plate heat exchanger is an ideal equipment for liquid-liquid and liquid-steam heat exchange. It has the characteristics of high heat exchange efficiency, small heat loss, compact and light structure, small footprint, wide application, long service life, etc. Under the same pressure loss, its heat transfer coefficient is 3-5 times higher than that of tube heat exchanger, and the footprint is one-third of that of tube heat exchanger. The heat recovery rate can be as high as more than 90%.

[0003] Most existing plate preheaters use bolts and guide rods to connect the heat exchange plates. This method requires the guide rods to be removed first when the heat exchange plates in the device need to be disassembled and cleaned. The guide rods in the plate preheaters on the market are fixed between the two support plates by threaded connections. Therefore, it is very time-consuming and laborious to disassemble and install the guide rods, which causes inconvenience to the cleaning of the heat exchange plates. For this reason, we propose a corrugated plate preheater with variable curvature. Utility Model Content

[0004] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a corrugated curvature variable plate preheater, which effectively solves the above problem.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a corrugated plate preheater with variable curvature comprises two groups of main support plates, two groups of side support plates are connected to opposite sides of the two groups of main support plates, the left and right sides of the lower main support plate are connected to input pipes, the left and right sides of the lower main support plate are connected to output pipes, the front and rear sides of the lower main support plate are connected to two groups of guide rods, the right side of the left guide rod is evenly provided with card grooves, the outer sides of the four groups of guide rods are provided with heat exchange plate groups, the heat exchange plate groups are located on opposite sides of the two groups of side support plates, the upper sides of the four groups of guide rods are connected to limiting plates, the left and right sides of the limiting plates are connected to fixing devices, and the guide rods on the left and right sides and the fixing devices on the left and right sides are mirror-imaged.

[0006] Preferably, the fixing device on the left side includes a connecting rod, a clamping block is connected to the outer side of the connecting rod, a spring is connected to the right side of the clamping block, the right side of the spring is connected to the limiting plate, a groove is opened inside the limiting plate, and the fixing device is located inside the groove of the limiting plate.

[0007] Preferably, the upper side of the clamping block is connected to a limiting block, and the upper side of the limiting plate is provided with a sliding groove matching the limiting block.

[0008] Preferably, both left and right sides of the limiting plate are connected to rotating rods, both front and rear sides of the rotating rod are connected to connecting steel ropes, and the left side of the connecting steel rope is connected to the fixing device.

[0009] Preferably, a hexagonal block is connected to the lower side of the guide rod, and a groove matching the hexagonal block is formed on the lower side of the main support plate.

[0010] Preferably, both left and right sides of the limit plate are provided with sliding grooves matching the side support plates, and both left and right sides of the limit plate are connected with rotating wheels.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The device is connected by means of springs and blocks, which reduces the use of nuts, making the replacement and maintenance of the heat exchange plate group of the device more convenient in the later stage. At the same time, the number of heat exchange plate groups can be set according to the needs of the device, which improves the efficiency and quality of the subsequent use of the heat exchange plate. The number of heat exchange plate groups does not affect the convenience of disassembly of the device, which changes the inconvenience of rotating the nuts many times when the number of traditional heat exchange plate groups is small.

[0013] 2. The fixing device of the device is located inside the groove of the limit plate, which changes the situation where the traditional nut is exposed outside. The nut oxidizes too quickly in special areas, which easily leads to inconvenience in subsequent disassembly, thereby improving the safety and convenience of using the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0015] In the attached picture:

[0016] Figure 1 This is a schematic diagram of the structure of a corrugated arc variable plate preheater of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the heat exchange plate group of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the limit plate of the utility model;

[0019] Figure 4 Utility Model Figure 3 Enlarged view of part A.

[0020] In the figure: 100, main support plate; 110, side support plate; 120, input pipe; 130, output pipe; 140, guide rod; 141, hexagonal block; 200, heat exchange plate group; 300, limit plate; 310, fixing device; 311, connecting rod; 312, block; 313, spring; 314, limit block; 330, rotating rod; 340, connecting steel rope; 350, rotating wheel. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-4 The corrugated curvature variable plate preheater comprises two sets of main support plates 100, two sets of side support plates 110 are connected to the opposite sides of the two sets of main support plates 100, the left and right sides of the lower main support plate 100 are fixedly connected with input pipes 120, the left and right sides of the lower main support plate 100 are fixedly connected with output pipes 130, the front and rear sides of the lower main support plate 100 are plugged with two sets of guide rods 140, the right side of the left guide rod 140 is evenly provided with card slots, and the outer sides of the four sets of guide rods 140 are provided with heat exchange plate groups 200 The cold and hot flows are input from the input pipe 120, pass through the heat exchange plate group 200 for heat exchange, and then are discharged through the output pipe 130. The left and right sides of the limiting plate 300 are provided with sliding grooves matching the side support plate 110. The left and right sides of the limiting plate 300 are movably connected with the rotating wheels 350. By setting the rotating wheels 350 and the left and right sides of the limiting plate 300 are provided with sliding grooves matching the side support plate 110, the limiting plate 300 cannot be separated from the side support plate 110, thereby improving the stability of the operation of the limiting plate 300.

[0023] The heat exchange plate group 200 is located on the opposite side of the two groups of side support plates 110, and the upper side of the four groups of guide rods 140 is connected to the limit plate 300. The left and right sides of the limit plate 300 are connected with a fixing device 310. The left and right guide rods 140 and the left and right fixing devices 310 are mirrored. The left fixing device 310 includes a connecting rod 311, and the connecting rod 311 is fixedly connected to the limit plate 300. The outer side of the connecting rod 311 is rotatably connected with a block 312, and the right side of the block 312 is fixedly connected with a spring 313. The right side of the spring 313 is fixedly connected to the limit plate 300. The heat exchange plate group 200 is placed on the upper side of the main support plate 100, and then the guide rod 140 is removed from the lower main support plate After 100 is inserted into the main support plate 100 and the heat exchange plate group 200, the limit plate 300 is sleeved on the outer side of the four groups of limit plates 300, and the limit plate 300 is pressed down while driving the guide rod 140 to move upward. The lower side of the guide rod 140 is fixedly connected with a hexagonal block 141, and the lower side of the main support plate 100 is provided with a groove matching the hexagonal block 141, until the hexagonal block 141 is stuck in the groove on the lower side of the main support plate 100. In this process, the limit plate 300 moves downward and drives the block 312 to move downward. The block 312 moves downward and is blocked by the guide rod 140, so that the block 312 squeezes the spring 313 until the guide rod 140 and the limit plate 300 move to the predetermined position. After the positioning, the elastic force generated by the deformation of the spring 313 drives the block 312 to be stuck in the slot of the guide rod 140, and then the connection between the limit plate 300 and the guide rod 140 is completed, and then the heat exchange plate group 200 is limited by the limit plate 300, the limit plate 300 is provided with a groove inside, the fixing device 310 is located inside the groove of the limit plate 300, the upper side of the block 312 is fixedly connected to the limit block 314, and the upper side of the limit plate 300 is provided with a slide groove matching the limit block 314. By setting the upper side of the limit plate 300 to have a slide groove matching the limit block 314, the limit block 314 limits the rotatable angle of the block 312, thereby avoiding the block 31 2. The phenomenon of damaging the spring 313 occurs. The left and right sides of the limit plate 300 are rotatably connected to the rotating rod 330. The front and rear sides of the rotating rod 330 are fixedly connected to the connecting steel rope 340. The left side of the connecting steel rope 340 is connected to the block 312 of the fixing device 310. When the heat exchange plate group 200 needs to be repaired and replaced, the rotating rod 330 is rotated to drive the connecting steel rope 340 to drive the block 312 to squeeze the spring 313, so that the block 312 is separated from the guide rod 140. At this time, the guide rod 140 is moved downward. Then, after the four groups of guide rods 140 are completely separated from the heat exchange plate group 200, the heat exchange plate group 200 can be disassembled by moving it forward and backward.

Claims

1. The corrugated arc variable plate preheater is characterized by: The invention comprises two groups of main support plates (100), two groups of side support plates (110) are connected to opposite sides of the two groups of main support plates (100), the left and right sides of the lower main support plate (100) are connected to input pipes (120), the left and right sides of the lower main support plate (100) are connected to output pipes (130), the front and rear sides of the lower main support plate (100) are connected to two groups of guide rods (140), and the right side of the left guide rod (140) is connected to the left side of the main support plate (100). The sides are evenly provided with card slots, and the outer sides of the four groups of guide rods (140) are provided with heat exchange plate groups (200), and the heat exchange plate groups (200) are located on the opposite sides of the two groups of side support plates (110). The upper sides of the four groups of guide rods (140) are connected to limit plates (300), and the left and right sides of the limit plates (300) are connected to fixing devices (310), and the guide rods (140) on the left and right sides and the fixing devices (310) on the left and right sides are arranged in a mirror image.

2. The corrugated radian variable plate preheater according to claim 1, characterized in that: The fixing device (310) on the left side comprises a connecting rod (311), the outer side of the connecting rod (311) is connected to a clamping block (312), the right side of the clamping block (312) is connected to a spring (313), the right side of the spring (313) is connected to a limiting plate (300), a groove is provided inside the limiting plate (300), and the fixing device (310) is located inside the groove of the limiting plate (300).

3. The corrugated curvature variable plate preheater according to claim 2, characterized in that: The upper side of the clamping block (312) is connected to a limiting block (314), and the upper side of the limiting plate (300) is provided with a sliding groove matching the limiting block (314).

4. The corrugation curvature variable plate preheater according to claim 1, characterized in that: The left and right sides of the limiting plate (300) are both connected to a rotating rod (330), the front and rear sides of the rotating rod (330) are both connected to a connecting steel rope (340), and the left side of the connecting steel rope (340) is connected to the fixing device (310).

5. The corrugated curvature variable plate preheater according to claim 1, characterized in that: The lower side of the guide rod (140) is connected to a hexagonal block (141), and the lower side of the main support plate (100) is provided with a groove matching the hexagonal block (141).

6. The corrugation curvature variable plate preheater according to claim 1, characterized in that: The left and right sides of the limiting plate (300) are both provided with sliding grooves matching the side support plates (110), and the left and right sides of the limiting plate (300) are both connected to rotating wheels (350).

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