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Pumps for shell and tube heat exchangers

A shell-and-tube heat exchanger and pump body technology, applied in the direction of rotary piston type/swing piston type pump components, pump components, heat exchange equipment, etc., can solve the problem of low safety factor, weak connection, tube side and shell The process pressure is not easy to keep consistent, etc., to achieve the effect of high safety factor

Active Publication Date: 2017-11-17
GUANGZHOU XINHENG PUMP MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the prior art, the tube-side fluid and the shell-side fluid of the shell-and-tube heat exchanger are driven by two pumps respectively, which is expensive, and the pressure between the tube side and the shell side is not easy to keep consistent, so that the tube side and the shell side There is a pressure difference between them, and the pressure difference is easy to damage the relatively weak connection between the tube side and the shell side; Fast mixing, low safety factor

Method used

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  • Pumps for shell and tube heat exchangers
  • Pumps for shell and tube heat exchangers
  • Pumps for shell and tube heat exchangers

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Such as figure 1 As shown, a pump for a shell-and-tube heat exchanger includes a pump body 1, a drive plate 2 and a drive shaft 3, the drive shaft 3 rotates in a clockwise direction, and the pump body 1 is a hollow circle Disk-shaped structure, the drive plate 2 is arranged in the pump body 1, the drive shaft 3 extends into the pump body 1 through the central end of the pump body 1 and is rotatably connected with the pump body 1, the drive plate 2 The end of the drive shaft 3 is perpendicular to each other and is fixedly connected. The drive shaft 3 is arranged away from the center of the drive disc 2. The diameter of the drive disc 2 is greater than the radius of the inner surface of the pump body 1. The drive disc 2 is connected to the inner surface of the pump body 1. The inner surface of the pump body 1 is arranged tangentially. The lower left part of the pump body 1 is provided with a first liquid inlet pipe 11, the upper left part is provided with a first liquid o...

Embodiment 2

[0026] On the basis of Example 1, as figure 1 , figure 2 As shown, an arc-shaped groove 41 is arranged on the end surface of the end of the reset rod 4 extending into the pump body 1, and a sealing block 5 is arranged in the arc-shaped groove 41, such as image 3 As shown, the cross section of the sealing block 5 is a crescent-shaped structure, including a first arc sealing surface 51 and a second arc sealing surface 52;

[0027] The radius of the first arc sealing surface 51 is equal to the radius of the driving disc 2, and the first arc sealing surface 51 fits on the side of the driving disc 2 and is slidably connected with the side of the driving disc 2;

[0028] The radius of the second arc-shaped sealing surface 52 is equal to the radius of the arc-shaped groove 41, and the second arc-shaped sealing surface 52 is attached to the surface of the arc-shaped groove 41 and is connected 41 Swipe to connect.

[0029] The friction phenomenon between the end of the reset lever...

Embodiment 3

[0031] On the basis of Example 2, such as figure 1 As shown, the two reset rods 4 are coaxially arranged, and the axis of the reset rod 4 passes through the center of the drive shaft 3 and is arranged perpendicular to the drive shaft 3 . This structure can prevent the reset rod 4 from exerting an additional load on the drive disc 2, and can improve energy utilization.

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PUM

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Abstract

A pump for a shell-and-tube heat exchanger comprises a pump body (1), a driving disc (2), a driving shaft (3), and a reset lever (4). The driving shaft (3) is disposed offset from the center of the driving disc (2). The pump body is provided with two liquid inlet pipes (11, 13) and two liquid outlet pipes (12, 14). The merits of the pump for shell-and-tube heat exchangers are as follows. The two liquid inlet pipes (11, 13) and the two liquid outlet pipes (12, 14) are provided, and are driven using the same driving disc (2). Namely, the flow of the tube-side and shell-side fluids in a shell-and-tube heat exchanger can be simultaneously driven, such that using two pumps for driving can be avoided, and such that the tube-side pressure and the shell-side pressure can be more easily maintained equal for achieving zero pressure difference. Therefore, the weak junction between the tube side and the shell side is not liable to damage. When the tube side and the shell side undergo leakage, the tube-side and shell-side fluids are unlikely to be mixed rapidly, thereby providing greater safety.

Description

technical field [0001] The invention relates to the field of heat exchanger production and manufacturing, more precisely, it relates to a pump for a shell-and-tube heat exchanger. Background technique [0002] In the prior art, the tube-side fluid and the shell-side fluid of the shell-and-tube heat exchanger are driven by two pumps respectively, which is expensive, and the pressure between the tube side and the shell side is not easy to keep consistent, so that the tube side and the shell side There is a pressure difference between them, and the pressure difference is easy to damage the relatively weak connection between the tube side and the shell side; Fast mixing, low safety factor Contents of the invention [0003] The present invention mainly solves the technical problems existing in the prior art, so as to provide a pump with two liquid inlet pipes and two liquid outlet pipes, which is driven by the same drive plate, that is, simultaneously drives the tube side of t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F28F27/02F04C15/06
CPCF04C15/06F28F27/02
Inventor 江劲松王靖唐建迎
Owner GUANGZHOU XINHENG PUMP MFG