A plate heat exchanger for an ammonia removal tower

Abstract

This disclosure relates to the technical field of plate heat exchangers. One embodiment of this disclosure provides a plate heat exchanger for an ammonia removal tower, comprising: a base plate, a main end plate, and a secondary end plate. Both the main and secondary end plates are mounted on the base plate, with plates installed between them. A telescopic connection assembly is disposed between the secondary end plate and the base plate, and a tensioning assembly is disposed between the main and secondary end plates. The telescopic connection assembly includes a pair of main rods, both fixed to the surface of the main end plate. The secondary end plate is movably fitted onto the secondary end plate. A long groove is formed on the surface of the top main rod, and a drive screw is installed within the groove. One end of each pair of main rods is connected to a column, the lower end of which is fixedly connected to the surface of the base plate. A sliding block is provided on the inner end face of the sliding connection between the secondary end plate and the main rod. This technical solution solves the technical problems of high manufacturing costs and the integrated structure of existing plate heat exchangers, which prevent flexible disassembly and increase maintenance costs.

Description

Technical Field

[0001] The embodiments disclosed herein relate to the technical field of plate heat exchangers, and more specifically, to a plate heat exchanger for an ammonia removal tower. Background Technology

[0002] A plate heat exchanger is a high-efficiency heat exchanger composed of a series of corrugated metal plates stacked together. Thin rectangular channels are formed between the plates, through which heat exchange occurs. Plate heat exchangers are ideal for liquid-liquid and liquid-vapor heat exchange. They feature high heat exchange efficiency, low heat loss, compact and lightweight structure, small footprint, wide application, and long service life. Under the same pressure loss conditions, their heat transfer coefficient is 3-5 times higher than that of a tubular heat exchanger, their footprint is one-third that of a tubular heat exchanger, and their heat recovery rate can reach over 90%.

[0003] Because of their significant contribution to energy conservation, plate heat exchangers are increasingly used in various fields, leading to huge production demands. However, different industries have different requirements for plate heat exchangers due to various reasons, media, and media volume variations. The design of existing plate heat exchangers' components is largely customized, resulting in excessively high manufacturing costs for some smaller-volume plate heat exchangers. The integrated structure also prevents flexible disassembly and assembly, increasing maintenance costs and ultimately leading to energy waste.

[0004] Therefore, improvements have been made to address the aforementioned issues. Utility Model Content

[0005] To overcome the above-mentioned defects, the embodiments of this disclosure provide a plate heat exchanger for ammonia removal tower, which solves the technical problems of high manufacturing cost and integrated structure of plate heat exchangers in the prior art, which makes them difficult to separate and disassemble flexibly and increases maintenance costs.

[0006] According to one aspect, at least one embodiment of this disclosure provides a plate heat exchanger for an ammonia removal tower, comprising:

[0007] A base plate, a main end plate, and a secondary end plate, wherein the main end plate and the secondary end plate are both disposed on the base plate;

[0008] Several plates and a telescopic connecting assembly, wherein the plates are installed between the main end plate and the secondary end plate, and the telescopic connecting assembly is disposed between the secondary end plate and the base plate;

[0009] A tensioning assembly is disposed between the main end plate and the secondary end plate;

[0010] The telescopic connection assembly includes a pair of main rods, both of which are fixed to the surface of the main end plate. The secondary end plate is movably fitted onto the secondary end plate. A long groove is formed on the surface of the main rod at the top, and a drive screw is installed in the long groove.

[0011] As a further technical solution, one end of the main rod is connected to a column, the lower end of the column is fixedly connected to the surface of the base plate, and a sliding block is provided on the inner end face of the sliding connection between the auxiliary end plate and the main rod. The sliding block is connected to the drive screw through a threaded engagement.

[0012] As a further technical solution, the sliding block is slidably fitted to the inner wall of the long groove, a pair of slide rails are provided on the surface of the bottom plate, the lower end of the secondary end plate is slidably connected to the slide rails, and a screwing block is provided at one end of the drive screw.

[0013] As a further technical solution, the tensioning assembly includes a pair of fixing frames, both of which are disposed on the two end faces of the main end plate. A connecting block is rotatably connected to the fixing frame via a pin, and a rotating block is rotatably connected to the connecting block.

[0014] As a further technical solution, a pair of fixing blocks are provided on both sides of the secondary end plate, a pair of notches are provided on the surface of the fixing blocks, and positioning holes are provided on the surface of both the fixing blocks and the secondary end plate.

[0015] As a further technical solution, a tensioning screw is provided at one end of the rotating block, and an internal thread block is connected to the tensioning screw through a threaded connection. Several insert rods are provided on the surface of the internal thread block, and the insert rods are inserted into the positioning hole.

[0016] As a further technical solution, the notch has a U-shaped opening structure, and the inner diameter of the notch matches the diameter of the tensioning screw.

[0017] As a further technical solution, the connecting block can rotate 90° within the fixed frame via a pin.

[0018] The beneficial effects of the embodiments disclosed herein are as follows:

[0019] 1. The beneficial effects of the telescopic connection assembly in this disclosure are as follows: the movable assembly structure of the main rod and the secondary end plate lays a solid foundation for subsequent adjustment work, allowing the secondary end plate to move flexibly on the main rod. The threaded engagement between the drive screw and the sliding block enables precise adjustment of the position of the secondary end plate by rotating the drive screw, meeting the installation requirements of different numbers of plates. The setting of the column and the slide rail provides stable support, while the slide rail guides the sliding direction of the secondary end plate. The two work together to ensure the stability and accuracy of the sliding of the secondary end plate. This assembly can flexibly adjust the spacing between the plates, making it extremely convenient to install new plates or remove damaged plates, greatly reducing maintenance costs and improving maintenance efficiency.

[0020] 2. The beneficial effects of the tensioning assembly in this disclosure are that the fixed frame, connecting block, and rotating block cooperate with each other to provide a flexible connection method and the possibility of multi-angle adjustment, which facilitates the installation and disassembly operations of the operator according to the actual situation. The notch facilitates the insertion, removal, and rotation of the tensioning screw, which greatly improves work efficiency. The positioning hole and the insertion rod fit tightly to ensure a tight connection between the main and auxiliary end plates and prevent gaps that could lead to leakage. By rotating the tensioning screw, the internal thread block is moved, thereby achieving a reliable fastening between the main end plate and the auxiliary end plate. This not only effectively prevents heat exchanger leakage and ensures normal operation of the equipment and extends the service life of the equipment, but also makes the operation simple and convenient when disassembly and maintenance are required, reducing the difficulty of maintenance. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this disclosure and these drawings without any creative effort.

[0022] Figure 1 This is a schematic diagram of a structure in one embodiment of the present disclosure;

[0023] Figure 2 This is an isometric drawing of the present disclosure;

[0024] Figure 3 This is an isometric sectional view of the present disclosure;

[0025] Figure 4 Appendix to this disclosure Figure 3 Enlarged view of part A in the middle;

[0026] In the diagram: 1. Base plate; 2. Main end plate; 3. Secondary end plate; 4. Plate; 5. Telescopic connection assembly; 5-1. Main rod; 5-2. Long slot; 5-3. Drive screw; 5-4. Column; 5-5. Sliding block; 5-6. Slide rail; 5-7. Tightening block; 6. Tensioning assembly; 6-1. Fixing frame; 6-2. Connecting block; 6-3. Rotating block; 6-4. Fixing block; 6-5. Groove; 6-6. Positioning hole; 6-7. Tensioning screw; 6-8. Internal thread block; 6-9. Insert rod. Detailed Implementation

[0027] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present disclosure and are not intended to limit the scope of the disclosure.

[0028] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0029] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0030] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0031] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0032] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0033] like Figures 1-4 As shown, a plate heat exchanger for an ammonia removal tower is illustrated in one embodiment of this disclosure, comprising:

[0034] The base plate 1, the main end plate 2, and the secondary end plate 3 are all mounted on the base plate 1.

[0035] A plurality of plates 4 and a telescopic connecting assembly 5, wherein the plates 4 are installed between the main end plate 2 and the secondary end plate 3, and the telescopic connecting assembly 5 is disposed on the secondary end plate 3 and the base plate 1;

[0036] Tensioning assembly 6, which is disposed between the main end plate 2 and the secondary end plate 3;

[0037] The telescopic connection assembly 5 includes a pair of main rods 5-1, both of which are fixed to the surface of the main end plate 2. The auxiliary end plate 3 is movably fitted onto the auxiliary end plate 3. A long groove 5-2 is formed on the surface of the top main rod 5-1, and a drive screw 5-3 is installed in the long groove 5-2. One end of each pair of main rods 5-1 is connected to a column 5-4, and the lower end of the column 5-4 is fixedly connected to the surface of the base plate 1. A sliding block 5-5 is provided on the inner end face of the sliding connection between the auxiliary end plate 3 and the main rod 5-1. The sliding block 5-5 is connected to the drive screw 5-3 by a threaded engagement. The sliding block 5-5 is slidably fitted to the inner wall of the long groove 5-2. A pair of slide rails 5-6 are provided on the surface of the base plate 1, and the lower end of the auxiliary end plate 3 is slidably connected to the slide rails 5-6. A screwing block 5-7 is provided on one end of the drive screw 5-3.

[0038] In some examples, during the use of plate heat exchangers, a telescopic connection assembly 5 is designed to achieve the fixing and separation adjustment between the main end plate 2 and the auxiliary end plate 3 to meet the sealing and maintenance requirements under different operating conditions. This assembly includes a pair of main rods 5-1 fixed to the surface of the main end plate 2, and the auxiliary end plate 3 is movably fitted onto the main rods 5-1, forming the basic structure for the relative movement of the main end plate 2 and the auxiliary end plate 3. The long groove 5-2 opened on the surface of the top main rod 5-1 provides installation space for the drive screw 5-3. The drive screw 5-3 is installed in the long groove 5-2 and is connected to the internally threaded block 6-8 set on the inner end face of the sliding connection between the auxiliary end plate 3 and the main rod 5-1 through threaded engagement, realizing the linear movement of the auxiliary end plate 3 on the main rod 5-1 with a constant angle. When the drive screw is rotated... When the screw 5-7 at one end of the drive screw 5-3 is turned, the drive screw 5-3 rotates. The sliding block 5-5, due to its threaded engagement with the drive screw 5-3, controls the secondary end plate 3 to slide along the screw axis within the long groove 5-2. The column 5-4, connected at one end of a pair of main rods 5-1, has its lower end fixedly connected to the surface of the base plate 1, providing a stable support foundation for the entire telescopic connection assembly 5. A pair of slide rails 5-6 on the surface of the base plate 1 are slidably connected to the lower end of the secondary end plate 3, further guiding and constraining the sliding direction of the secondary end plate 3, ensuring the stability and accuracy of the secondary end plate 3 during the sliding process, and preventing deviation or jamming. At the same time, the sliding block 5-5 is slidably attached to the inner wall of the long groove 5-2, which also helps to improve the stability and guidance of the movement of the secondary end plate 3.

[0039] like Figures 1-4 As shown in the figure, the tensioning assembly 6 in this embodiment includes a pair of fixing brackets 6-1. Both fixing brackets 6-1 are provided on both ends of the main end plate 2. A connecting block 6-2 is rotatably connected to the fixing bracket 6-1 through a pin. A rotating block 6-3 is rotatably connected to the connecting block 6-2. A pair of fixing blocks 6-4 are provided on both ends of the secondary end plate 3. A pair of notches 6-5 are opened on the surface of the fixing block 6-4. Positioning holes 6-6 are opened on the surface of both the fixing block 6-4 and the secondary end plate 3. A tensioning screw 6-7 is provided at one end of the rotating block 6-3. An internal threaded block 6-8 is connected to the tensioning screw 6-7 through a threaded engagement. A plurality of insert rods 6-9 are provided on the surface of the internal threaded block 6-8. The insert rods 6-9 are inserted into the positioning holes 6-6.

[0040] In some examples, during the operation of the plate heat exchanger, a tensioning assembly 6 is designed to ensure a tight connection between the main end plate 2 and the secondary end plate 3 and prevent leakage. This assembly includes a pair of fixing brackets 6-1 on both sides of the main end plate 2. A connecting block 6-2 is rotatably connected to the fixing brackets 6-1 via a pin, allowing the connecting block 6-2 to rotate flexibly around the pin, providing an adjustable base structure. A rotating block 6-3, rotatably connected within the connecting block 6-2, can rotate 360° within the connecting block 6-2. A pair of fixing blocks 6-4 on both sides of the secondary end plate 3 have a pair of notches 6-5 on their surfaces. Each notch 6-5 is a single... The side opening provides space for the tensioning screw 6-7 to be inserted. The fixing block 6-4 and the secondary end plate 3 both have positioning holes 6-6. These positioning holes 6-6 are positioning structures to achieve the tensioning function. The tensioning screw 6-7 set at one end of the rotating block 6-3, together with the internal thread block 6-8 connected by a threaded engagement, constitutes the tensioning drive structure. When the tensioning screw 6-7 is rotated, the internal thread block 6-8 will move along the axis of the screw. Several insert rods 6-9 set on the surface of the internal thread block 6-8 are inserted into the positioning holes 6-6. This allows the internal thread block 6-8 to be tightly connected with the secondary end plate 3 during the movement, thereby achieving the effect of tensioning the main end plate 2 and the secondary end plate 3.

[0041] For example, such as Figure 1 As shown, the notch 6-5 has a U-shaped opening structure, and the inner diameter of the notch 6-5 matches the diameter of the tensioning screw 6-7.

[0042] In some examples, the U-shaped structure allows the tensioning screw 6-7 to rotate freely after insertion, facilitating its release within the slot 6-5.

[0043] For example, such as Figure 3 As shown, the connecting block 6-2 can rotate 90° within the fixed frame 6-1 via a pin.

[0044] In some examples, by rotating the tension screws 6-7 by 90°, they can be opened to the sides without affecting the operation of plate 4.

[0045] In actual use: First, place plate 4 between main end plate 2 and secondary end plate 3. Rotate screw block 5-7 to rotate drive screw 5-3, causing secondary end plate 3 to slide along slide rail 5-6 on main rod 5-1. Adjust the position of secondary end plate 3 to clamp plate 4. Then, rotate connecting block 6-2 to rotate it 90° within fixed frame 6-1. Pass tension screw 6-7 at one end of rotating block 6-3 through slot 6-5 on fixed block 6-4 of secondary end plate 3. Rotate tension screw 6-7 to move internal thread block 6-8, allowing insert rod 6-9 of internal thread block 6-8 to insert into positioning hole 6-6, thereby tightening main end plate 2 and secondary end plate 3. During maintenance, the tensioning assembly 6 can be loosened by reversing the operation, and then screw block 5-7 can be rotated to loosen plate 4 from secondary end plate 3, facilitating maintenance or replacement of plate 4.

[0046] It should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and are not intended to limit it. Although this disclosure has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this disclosure without departing from the spirit and scope of the technical solutions of this disclosure, and all such modifications and substitutions should be covered within the scope of the claims of this disclosure.

Claims

1. A plate heat exchanger for an ammonia removal tower, characterized in that, include: The base plate (1), the main end plate (2) and the secondary end plate (3) are both disposed on the base plate (1); A plurality of plates (4) and a telescopic connecting assembly (5), wherein the plates (4) are installed between the main end plate (2) and the secondary end plate (3), and the telescopic connecting assembly (5) is disposed on the secondary end plate (3) and the base plate (1); A tensioning assembly (6) is disposed between the main end plate (2) and the secondary end plate (3); The telescopic connection assembly (5) includes a pair of main rods (5-1), both of which are fixed to the surface of the main end plate (2). The secondary end plate (3) is movably fitted onto the secondary end plate (3). A long groove (5-2) is provided on the surface of the main rod (5-1) at the top, and a drive screw (5-3) is installed in the long groove (5-2).

2. The plate heat exchanger for an ammonia removal tower according to claim 1, characterized in that, One end of each pair of main rods (5-1) is connected to a column (5-4). The lower end of the column (5-4) is fixedly connected to the surface of the base plate (1). A sliding block (5-5) is provided on the inner end face of the sliding connection between the auxiliary end plate (3) and the main rod (5-1). The sliding block (5-5) is connected to the drive screw (5-3) by a threaded engagement.

3. A plate heat exchanger for an ammonia removal tower according to claim 2, characterized in that, The sliding block (5-5) is slidably attached to the inner wall of the long groove (5-2), a pair of slide rails (5-6) are provided on the surface of the bottom plate (1), the lower end of the secondary end plate (3) is slidably connected to the slide rails (5-6), and a screwing block (5-7) is provided at one end of the drive screw (5-3).

4. A plate heat exchanger for an ammonia removal tower according to claim 1, characterized in that, The tensioning assembly (6) includes a pair of fixing frames (6-1), both of which are located on the two end faces of the main end plate (2). A connecting block (6-2) is rotatably connected to the fixing frame (6-1) via a pin, and a rotating block (6-3) is rotatably connected to the connecting block (6-2).

5. A plate heat exchanger for an ammonia removal tower according to claim 4, characterized in that, A pair of fixing blocks (6-4) are provided on both sides of the sub-end plate (3). A pair of notches (6-5) are provided on the surface of the fixing blocks (6-4). Positioning holes (6-6) are provided on the surface of both the fixing blocks (6-4) and the sub-end plate (3).

6. A plate heat exchanger for an ammonia removal tower according to claim 5, characterized in that, One end of the rotating block (6-3) is provided with a tensioning screw (6-7), and an internal thread block (6-8) is connected to the tensioning screw (6-7) by a threaded connection. The surface of the internal thread block (6-8) is provided with a plurality of insert rods (6-9), and the insert rods (6-9) are inserted into the positioning hole (6-6).

7. A plate heat exchanger for an ammonia removal tower according to claim 6, characterized in that, The notch (6-5) has a U-shaped opening structure, and the inner diameter of the notch (6-5) matches the diameter of the tensioning screw (6-7).

8. A plate heat exchanger for an ammonia removal tower according to claim 4, characterized in that, The connecting block (6-2) can rotate 90° within the fixed frame (6-1) via a pin.

Images