Tube plate type evaporator of water chilling unit

Abstract

The utility model belongs to the technical field of evaporators, and particularly discloses a water chilling unit tube plate type evaporator which comprises an aluminum plate and locking structures, a tube groove is formed in the aluminum plate, an evaporation tube is arranged in the tube groove, a plurality of locking structures are arranged on the side edge of the tube groove, and the tube groove plays a role in limiting the evaporation tube. The locking structure is used for locking the evaporation pipe on the aluminum plate; the locking structure comprises a hinge base, a connecting shaft, a pressing plate, a fixing plate, a mounting block and a locking screw pin, the hinge base and the mounting block are symmetrically fixed to the two sides of the pipe groove, the connecting shaft is hinged to the hinge base, one end of the pressing plate is fixed to the evaporation pipe, the fixing block is fixed to the other end of the pressing plate, and the fixing block is attached to the mounting block; a through positioning insertion hole is formed in the fixing block, a locking screw hole is formed in the mounting block, and a locking screw pin penetrates through the positioning insertion hole and is in threaded connection with the interior of the locking screw hole to fix the pressing plate; the fixing plate is locked on the mounting block through the locking screw pin, so that the pressing plate is fixed, and the evaporating pipe is pressed through the pressing plate.

Description

Technical Field

[0001] The utility model relates to the technical field of evaporators, in particular to a tube-plate evaporator for a chiller. Background Art

[0002] In the refrigeration industry, there are two types of chillers: air-cooled chillers and water-cooled chillers. According to the compressor, they are divided into screw chillers, scroll chillers, and centrifugal chillers. Chillers generally consist of compressors, evaporators, condensers, and expansion valves, thus achieving the cooling and heating effects of the unit.

[0003] After long-term use, the existing evaporator generally needs to be disassembled and repaired regularly for the evaporation tube. Therefore, some people think of installing the evaporation tube on the aluminum plate in a snap-on manner to facilitate later disassembly and assembly. For example, the Chinese utility model patent with announcement number CN213841405U specifically discloses a tube-plate evaporator of a compressed air precooling unit.

[0004] However, in actual use, people will find that the evaporator tube installation structure adopted by the above-mentioned tube-plate evaporator realizes the restriction of the fixing ring by the elastic force of the spring, but the spring force is easily affected by temperature. When the spring is in a high temperature environment, the elasticity will decrease accordingly, and when the spring is in a low temperature environment, its material will become more fragile and prone to cracks or breakage, which will also cause force attenuation, making the fixing effect of the evaporator tube very unstable. Utility Model Content

[0005] The utility model aims to provide a tube-plate evaporator for a chiller to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a tube plate evaporator of a chiller, comprising an aluminum plate and a locking structure, wherein a tube groove is opened on the aluminum plate, an evaporating tube is arranged in the tube groove, and a plurality of locking structures are arranged on the side of the tube groove, wherein the tube groove serves to limit the evaporating tube, and the locking structure is used to lock the evaporating tube on the aluminum plate.

[0007] Preferably, the locking structure includes an articulated seat, a connecting shaft, a pressure plate, a fixed plate, a mounting block and a locking screw, the articulated seat and the mounting block are symmetrically fixed on both sides of the tube groove, the connecting shaft is hinged on the articulated seat, the pressure plate is located above the evaporator tube, and one end of the pressure plate is fixed to the evaporator tube, the fixed block is fixed to the other end of the pressure plate, the fixed block is fitted with the mounting block, a through positioning socket is provided on the fixed block, a locking screw hole is provided on the mounting block, the locking screw passes through the positioning socket and is threadedly connected in the locking screw hole to fix the pressure plate; the locking screw is used to lock the fixing plate to the mounting block, thereby fixing the pressure plate, and the evaporator tube is pressed tightly by the pressure plate.

[0008] Preferably, the pressing plate is an arc-shaped plate, and the cross section of the tube groove is arc-shaped, so as to fit the evaporation tube.

[0009] Preferably, the tube groove is in a continuous S-shape to accommodate the continuous bending of the evaporation tube.

[0010] Preferably, a limiting block is fixed at the bend of the tube groove, and the limiting block is in contact with the evaporation tube. The limiting block plays a role in limiting the evaporation tube to a certain extent.

[0011] Preferably, the pressing plate is made of stainless steel to improve corrosion resistance.

[0012] Preferably, a rubber pad is provided on the inner wall of the pressing plate, and the rubber pad is mainly used to prevent the pressing plate from making hard contact with the evaporating tube and thus preventing the evaporating tube from being damaged.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model discloses installing the evaporator tube in the tube groove of the aluminum plate, and fixing the evaporator tube by a pressing plate, and fixing the pressing plate by a locking screw pin. The locking screw pin can be screwed out, and the pressing plate can be directly opened, which is very convenient for later disassembly and maintenance of the evaporator tube, and the fixing effect is good, which effectively improves the practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the evaporation tube removed for the utility model;

[0017] Figure 3 This is a schematic diagram of the connection structure between the evaporation tube and the aluminum plate of the utility model.

[0018] In the figure: 1, aluminum plate; 101, tube groove; 2, evaporating tube; 3, locking structure; 301, hinge seat; 302, connecting shaft; 303, pressure plate; 304, fixing plate; 3041, positioning socket; 305, mounting block; 3051, locking screw hole; 306, locking screw pin; 4, limiting block. 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] In the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0021] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] See also Figure 1-3 The utility model provides a technical solution: a tube-plate evaporator of a chiller, comprising an aluminum plate 1 and a locking structure 3, wherein a tube groove 101 is provided on the aluminum plate 1, an evaporating tube 2 is arranged in the tube groove 101, and a plurality of locking structures 3 are arranged on the side of the tube groove 101, the tube groove 101 is provided to limit the evaporating tube 2, and the locking structure 3 is used to lock the evaporating tube 2 on the aluminum plate 1.

[0023] Furthermore, the locking structure 3 includes an articulated seat 301, a connecting shaft 302, a pressing plate 303, a fixing plate 304, a mounting block 305 and a locking screw 306. The articulated seat 301 and the mounting block 305 are symmetrically fixed on both sides of the tube groove 101. The connecting shaft 302 is hinged on the articulated seat 301. The pressing plate 303 is located above the evaporation tube 2, and one end of the pressing plate 303 is fixed to the evaporation tube 2. The fixing block is fixed to the other end of the pressing plate 303. The fixing block is fitted with the mounting block 305, a through positioning socket 3041 is provided on the fixing block, a locking screw hole 3051 is provided on the mounting block 305, a locking screw 306 passes through the positioning socket 3041 and is threadedly connected in the locking screw hole 3051 to fix the pressing plate 303; the locking screw 306 is used to lock the fixing plate 304 on the mounting block 305, thereby fixing the pressing plate 303, and thus the evaporation tube 2 is pressed by the pressing plate 303.

[0024] Furthermore, the pressing plate 303 is an arc-shaped plate, and the cross section of the tube groove 101 is an arc-shaped, so as to fit the evaporation tube 2 .

[0025] Furthermore, the tube groove 101 is in a continuous S-shape to accommodate the continuous bending of the evaporation tube 2 .

[0026] Furthermore, a limiting block 4 is fixed at the bending part of the tube groove 101 , and the limiting block 4 is in contact with the evaporation tube 2 . The limiting block 4 plays a role in limiting the evaporation tube 2 to a certain extent.

[0027] Furthermore, the pressing plate 303 is made of stainless steel to improve corrosion resistance.

[0028] Furthermore, a rubber pad is provided on the inner wall of the pressing plate 303 , and the rubber pad is mainly used to prevent the pressing plate 303 from making hard contact with the evaporation tube 2 and thus preventing the evaporation tube 2 from being damaged.

[0029] In summary, when the evaporation tube 2 needs to be removed, the utility model only needs to use a tool to rotate the locking screw 306, screw the locking screw 306 out of the locking screw hole 3051, and then the pressing plate 303 can be flipped, so that the connecting shaft 302 rotates on the hinge seat 301, and the pressing plate 303 is flipped open. Then, the pressing plates 303 on all the locking structures 3 are flipped open in the same way, and then the evaporation tube 2 can be removed from the aluminum plate 1. The operation is simple and easy to understand. When installing, when the pressing plate 303 is fully flipped open, the evaporation tube 2 is installed into the tube groove 101, and then the pressing plate 303 is flipped back so that the pressing plate 303 presses the evaporation tube 2, and at the same time the fixing plate 304 contacts the mounting block 305, and then the locking screw 306 is passed through the positioning socket 3041 on the fixing plate 304, and the locking screw 306 is screwed into the locking screw hole 3051, and the pressing plate 303 can be locked again.

[0030] It is worth noting that the entire device is controlled by a main control button. Since the device matched with the control button is a common device and belongs to the existing mature technology, its electrical connection relationship and specific circuit structure will not be described in detail here.

[0031] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A tube-sheet evaporator for a chiller, characterized in that: It comprises an aluminum plate (1) and a locking structure (3), wherein a tube groove (101) is provided on the aluminum plate (1), an evaporation tube (2) is arranged in the tube groove (101), and a plurality of locking structures (3) are arranged on the side of the tube groove (101); The locking structure (3) comprises an articulated seat (301), a connecting shaft (302), a pressing plate (303), a fixing plate (304), a mounting block (305) and a locking screw (306); the articulated seat (301) and the mounting block (305) are symmetrically fixed on two sides of the tube groove (101); the connecting shaft (302) is hinged on the articulated seat (301); the pressing plate (303) is located above the evaporating tube (2); one end of the pressing plate (303) is fixed to the evaporating tube (2); the fixing block is fixed to the other end of the pressing plate (303); the fixing block is fitted with the mounting block (305); a through positioning socket (3041) is provided on the fixing block; a locking screw hole (3051) is provided on the mounting block (305); and the locking screw (306) passes through the positioning socket (3041) and is threadedly connected to the locking screw hole (3051) to fix the pressing plate (303).

2. The tube-plate evaporator of a chiller according to claim 1, characterized in that: The pressing plate (303) is a curved plate.

3. The tube-plate evaporator of a water chiller according to claim 1, characterized in that: The tube groove (101) is in a continuous S-shape.

4. The tube-plate evaporator of a water chiller according to claim 1, characterized in that: A limiting block (4) is fixed at the bend of the tube groove (101), and the limiting block (4) is in contact with the evaporation tube (2).

5. The tube-plate evaporator of a chiller according to claim 1, characterized in that: The pressing plate (303) is made of stainless steel.

6. The tube-plate evaporator of a water chiller according to claim 1, characterized in that: A rubber pad is provided on the inner wall of the pressing plate (303).

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