Shell-and-tube evaporator with liquid separation device

Abstract

The utility model discloses a shell-and-tube evaporator with a liquid separating device, which relates to the technical field of evaporators and comprises a liquid inlet tube, the liquid inlet tube is connected onto an inlet tube box, a flow equalizing plate is arranged in the inlet tube box, flow equalizing holes are arranged on the flow equalizing plate, one end of the inlet tube box is connected with a shell, and a heat exchange tube bundle is mounted in the shell. An adjusting device is installed in the inlet pipe box, the adjusting device is used for adjusting the size of the inlet end of the flow equalizing hole, the adjusting device comprises a limiting block movably inserted into the flow equalizing hole, one end of the limiting block is connected with a separation net, and the separation net is provided with a spring used for pulling the separation net to move towards one side of the flow equalizing plate. A pull rope used for pulling the separation net to be away from the flow equalizing plate is arranged on the side, away from the spring, of the separation net, one end of the pull rope is connected to a rotating shaft used for winding the pull rope, and one end of the rotating shaft is connected with an auxiliary device. The size of the inlet end of the flow equalizing hole is conveniently adjusted, the flow equalizing plate is prevented from being replaced, the rotating shaft is conveniently rotated, and meanwhile rotation of the rotating shaft is conveniently limited.

Description

Technical Field

[0001] The utility model relates to the technical field of evaporators, in particular to a shell and tube evaporator with a liquid separation device. Background Art

[0002] Shell and tube heat exchangers have the advantages of simple structure, safety, reliability and high heat transfer efficiency. They improve the energy efficiency of refrigeration and air-conditioning equipment and are of great significance to the sustainable development of energy. In the refrigeration system, heat exchangers usually need to be connected in parallel in multiple ways. When the refrigerant with a uniform gas-liquid mixture is distributed equally to each branch, the heat exchanger can be used efficiently. Therefore, the distribution of two-phase refrigerants, especially the liquid phase, has a vital impact on the efficiency of the heat exchanger and the operation of the refrigeration system.

[0003] In the prior art, a utility model patent with announcement number CN211903370U provides a shell and tube evaporator with a liquid separation device, which includes a shell, a heat exchange tube, a flow equalizing plate, a refrigerant liquid inlet pipe, an outlet pipe, a shell side inlet, a shell side outlet, a tube plate and a liquid separation device, wherein the liquid separation device includes: an inlet distributor and a flow equalizing plate. The inlet distributor is connected to the end of the liquid inlet pipe and extends into the pipe box, and a rectangular sealing plate is installed at the enlarged end of the trapezoidal bottom surface, and the rectangular sealing plate is provided with circular holes; the flow equalizing plate is installed inside the pipe box and is evenly covered with flow equalizing holes.

[0004] The shell and tube evaporator with a liquid separation device is not convenient for adjusting the size of the inlet end of the flow equalizing hole, and the flow equalizing plate needs to be replaced. Therefore, we propose a shell and tube evaporator with a liquid separation device to solve the above problem. Utility Model Content

[0005] The purpose of the utility model is to provide a shell and tube evaporator with a liquid separation device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a shell and tube evaporator with a liquid separation device, comprising a liquid inlet pipe, the liquid inlet pipe is connected to an inlet pipe box, a flow equalizing plate is provided inside the inlet pipe box, a flow equalizing hole is provided on the flow equalizing plate, one end of the inlet pipe box is connected to a shell, a heat exchange tube bundle is installed in the shell, an adjusting device is installed in the inlet pipe box, the adjusting device is used to adjust the size of the inlet end of the flow equalizing hole, the adjusting device comprises a limit block that is movable and inserted into the flow equalizing hole, one end of the limit block is connected to a partition net, a spring is provided on the partition net for pulling the partition net to move toward the side of the flow equalizing plate, a pull rope is provided on the side of the partition net away from the spring for pulling the partition net away from the flow equalizing plate, one end of the pull rope is connected to a rotating shaft for winding the pull rope, and one end of the rotating shaft is connected to an auxiliary device.

[0007] Preferably, the auxiliary device is used to assist in rotating the shaft.

[0008] Preferably, the auxiliary device comprises a turntable connected to the top end of the rotating shaft, and a bolt for limiting the rotation of the turntable is threadedly penetrated on the turntable.

[0009] Preferably, the limit block is a conical barrel structure, and the maximum diameter of the limit block is greater than the diameter of the flow balancing hole.

[0010] Preferably, the partition net is used to support the movement of the limit block, the spring is a tension spring, and the spring is provided in at least two groups.

[0011] Preferably, the length of the pull rope is greater than the length of the limit block, one end of the rotating shaft is rotatably connected to the inlet pipe box, and the other end is rotated to pass through the inlet pipe box and connected to the turntable, and the horizontal distance between the rotating shaft and the flow equalizing plate is greater than or equal to the length of the limit block.

[0012] Preferably, a plurality of groups of thread grooves for matching bolts are provided on the inlet pipe box below the turntable, and the bolt threads are connected to the thread grooves for limiting the rotation of the turntable.

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

[0014] 1. Rotate the shaft, and the shaft rotates to reel in the pull rope, which pulls the partition net to move, and the limit block moves with the partition net. The limit block moves and is inserted into the flow equalizing hole. The insertion depth of the limit block is different, and the gap between the limit block and the flow equalizing hole is also different, thereby adjusting the size of the inlet end of the flow equalizing hole, making it easy to adjust the size of the inlet end of the flow equalizing hole, avoiding the need to replace the flow equalizing plate.

[0015] 2. Push the bolt to push the turntable to rotate, thereby causing the shaft to rotate and wind up the rope. When the rotation of the shaft needs to be limited, turn the bolt. One end of the bolt is threadedly connected to the turntable and is threadedly connected to an adjacent set of thread grooves. After the bolt is threadedly connected to the thread groove, it is restricted from rotating with the turntable, thereby restricting the rotation of the turntable and the shaft, making it easy to rotate the shaft and at the same time limiting the rotation of the shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a structural schematic diagram of the regulating device in the utility model;

[0018] Figure 3 It is a structural schematic diagram of the auxiliary device in the utility model.

[0019] In the figure: 1. liquid inlet pipe; 2. inlet pipe box; 3. flow equalizing plate; 4. flow equalizing hole; 5. shell; 6. heat exchange tube bundle; 7. adjustment device; 71. limit block; 72. partition net; 73. spring; 74. pull rope; 75. rotating shaft; 8. auxiliary device; 81. turntable; 82. bolt. 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] See also Figure 1-3 A shell and tube evaporator with a liquid separation device comprises a liquid inlet pipe 1, the liquid inlet pipe 1 is connected to an inlet pipe box 2, a flow equalizing plate 3 is arranged inside the inlet pipe box 2, a flow equalizing hole 4 is arranged on the flow equalizing plate 3, one end of the inlet pipe box 2 is connected to a shell 5, a heat exchange tube bundle 6 is installed in the shell 5, an adjusting device 7 is installed in the inlet pipe box 2, the adjusting device 7 is used to adjust the size of the inlet end of the flow equalizing hole 4, the adjusting device 7 comprises a limit block 71 that is movable and inserted into the flow equalizing hole 4, one end of the limit block 71 is connected to a partition 72, the partition 72 is provided with a spring 73 for pulling the partition 72 to move to one side of the flow equalizing plate 3, and the partition 72 is away from the spring A pull rope 74 is provided on one side of 73 for pulling the partition 72 away from the flow equalizing plate 3, and one end of the pull rope 74 is connected to a rotating shaft 75 for winding the pull rope 74, the limit block 71 is a conical barrel structure, the maximum diameter of the limit block 71 is larger than the diameter of the flow equalizing hole 4, the partition 72 is used to support the movement of the limit block 71, the spring 73 is a tension spring, and at least two groups of springs 73 are provided. The length of the pull rope 74 is greater than the length of the limit block 71, one end of the rotating shaft 75 is rotatably connected to the inlet pipe box 2, and the other end is rotatably passed through the inlet pipe box 2 and connected to the turntable 81, and the horizontal spacing between the rotating shaft 75 and the flow equalizing plate 3 is greater than or equal to the length of the limit block 71.

[0022] Rotate the rotating shaft 75, and the rotating shaft 75 rotates the winding rope 74. The rope 74 pulls the partition net 72 to move, and the limit block 71 follows the movement through the partition net 72. The limit block 71 moves and is inserted into the flow equalizing hole 74. The insertion depth of the limit block 71 is different, and the gap between it and the flow equalizing hole 4 is also different, thereby adjusting the size of the inlet end of the flow equalizing hole 4, making it easy to adjust the size of the inlet end of the flow equalizing hole 4, avoiding the need to replace the flow equalizing plate 3.

[0023] An auxiliary device 8 is connected to one end of the rotating shaft 75, and the auxiliary device 8 is used to assist in rotating the rotating shaft 75. The auxiliary device 8 includes a turntable 81 connected to the top of the rotating shaft 75. A bolt 82 for limiting the rotation of the turntable 81 is threaded through the turntable 81. A plurality of groups of thread grooves for matching the bolts 82 are provided on the inlet pipe box 2 below the turntable 81. The bolts 82 are threadedly connected to the thread grooves for limiting the rotation of the turntable 81.

[0024] The bolt 82 is pushed, and the turntable 81 is pushed to rotate by the bolt 82, thereby causing the rotating shaft 75 to rotate and reel in the pull rope 74. When the rotation of the rotating shaft 75 needs to be limited, the bolt 82 is rotated. One end of the bolt 82 is threadedly connected to the turntable 81 and is threadedly connected to an adjacent set of thread grooves. After the bolt 82 is threadedly connected to the thread groove, it is restricted to rotate with the turntable 81, thereby restricting the rotation of the turntable 81 and the rotating shaft 75, making it easy to rotate the rotating shaft 75 and at the same time easy to limit the rotation of the rotating shaft 75.

[0025] Working principle: The utility model rotates the rotating shaft 75, and the rotating shaft 75 rotates the winding rope 74. The rope 74 pulls the partition net 72 to move, and the limit block 71 follows the movement through the partition net 72. The limit block 71 moves and is inserted into the flow equalizing hole 74. The insertion depth of the limit block 71 is different and the gap between it and the flow equalizing hole 4 is also different, thereby adjusting the size of the inlet end of the flow equalizing hole 4, so that it is easy to adjust the size of the inlet end of the flow equalizing hole 4, avoiding the need to replace the flow equalizing plate 3, pushing the bolt 82, and pushing the turntable 81 to rotate through the bolt 82, thereby causing the rotating shaft 75 to rotate the winding rope 74. When it is necessary to limit the rotation of the rotating shaft 75, rotate the bolt 82. One end of the bolt 82 is threadedly connected to the turntable 81 and is threadedly connected to an adjacent set of thread grooves. After the bolt 82 is threadedly connected to the thread groove, it is restricted to follow the rotation of the turntable 81, thereby restricting the rotation of the turntable 81 and the rotating shaft 75, making it easy to rotate the rotating shaft 75 and at the same time convenient to restrict the rotation of the rotating shaft 75.

[0026] The liquid inlet pipe, the inlet pipe box 2, the flow equalizing plate 3, the flow equalizing hole 4, the shell 5 and the heat exchange tube bundle 6 are existing technologies and will not be described in detail here.

[0027] Although 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 shell and tube evaporator with a liquid separation device, comprising a liquid inlet pipe (1), the liquid inlet pipe (1) being connected to an inlet pipe box (2), a flow equalizing plate (3) being provided inside the inlet pipe box (2), a flow equalizing hole (4) being provided on the flow equalizing plate (3), one end of the inlet pipe box (2) being connected to a shell (5), a heat exchange tube bundle (6) being installed inside the shell (5), characterized in that: An adjusting device (7) is installed in the inlet pipe box (2), and the adjusting device (7) is used to adjust the size of the inlet end of the flow equalizing hole (4). The adjusting device (7) includes a limit block (71) that is movably inserted into the flow equalizing hole (4), one end of the limit block (71) is connected to a partition (72), and a spring (73) is provided on the partition (72) for pulling the partition (72) to move toward the side of the flow equalizing plate (3). A pull rope (74) is provided on the side of the partition (72) away from the spring (73) for pulling the partition (72) away from the flow equalizing plate (3), one end of the pull rope (74) is connected to a rotating shaft (75) for winding the pull rope (74), and one end of the rotating shaft (75) is connected to an auxiliary device (8).

2. The shell and tube evaporator with a liquid separation device according to claim 1, characterized in that: The auxiliary device (8) is used to assist in rotating the rotating shaft (75).

3. The shell and tube evaporator with a liquid separation device according to claim 2, characterized in that: The auxiliary device (8) comprises a rotating disk (81) connected to the top end of the rotating shaft (75), and a bolt (82) for limiting the rotation of the rotating disk (81) is threadedly penetrated on the rotating disk (81).

4. The shell and tube evaporator with a liquid separation device according to claim 1, characterized in that: The limiting block (71) is a conical barrel structure, and the maximum diameter of the limiting block (71) is greater than the diameter of the flow balancing hole (4).

5. The shell and tube evaporator with a liquid separation device according to claim 1, characterized in that: The partition net (72) is used to support the movement of the limit block (71), the spring (73) is a tension spring, and at least two groups of the spring (73) are provided.

6. The shell and tube evaporator with a liquid separation device according to claim 1, characterized in that: The length of the pull rope (74) is greater than the length of the limit block (71); one end of the rotating shaft (75) is rotatably connected to the inlet pipe box (2), and the other end is rotatably passed through the inlet pipe box (2) and connected to the turntable (81); the horizontal spacing between the rotating shaft (75) and the flow equalizing plate (3) is greater than or equal to the length of the limit block (71).

7. The shell and tube evaporator with a liquid separation device according to claim 3, characterized in that: A plurality of groups of thread grooves for matching bolts (82) are provided on the inlet pipe box (2) below the rotating disk (81), and the bolts (82) are threadedly connected to the thread grooves for limiting the rotation of the rotating disk (81).

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