Shell and tube type condensation and evaporation circulating barrel applied to refrigerating or cascade refrigerating system
The shell-and-tube condenser-evaporator circulation tank design, which integrates the condenser and evaporator into one unit, solves the problem of increased equipment height, enables convenient transportation and safe operation of the equipment, reduces costs, and improves system performance.
Patent Information
- Application Number
- CN202410984874.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-22
- Publication Date
- 2026-01-23
AI Technical Summary
In existing carbon dioxide refrigeration units, the condenser-evaporator and the low-pressure circulation tank are two separate pieces of equipment, which increases the equipment height, resulting in high transportation and installation costs. Furthermore, reducing the height can lead to cavitation in the refrigeration pump, and may even cause malfunctions.
Design a shell-and-tube condenser-evaporator circulation tank that integrates the condenser-evaporator and the low-pressure circulation tank. It is equipped with a liquid inlet, a left tube sheet, a cylinder, heat exchange tubes, an air inlet, a right tube sheet, an air outlet, a left liquid chamber, an air outlet, and a right gas chamber. The bottom of the cylinder is provided with a liquid storage space. The liquid inlet and air outlet can be located on one or both sides of the cylinder. The heat exchange tubes can be located in the gas phase zone or the liquid phase zone. The air inlet can be located on the top or side of the cylinder.
Reducing the overall height of the equipment facilitates overall transportation, reduces the number of pipes, lowers pipe resistance, improves system performance, saves costs, and ensures the safe operation of the refrigeration pump.
Smart Images
Figure CN121383512A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application belongs to the refrigeration technology, and particularly relates to a shell-and-tube condensing and evaporating circulation barrel applied to a cooling or cascade refrigeration system. BACKGROUND
[0002] In the existing carbon dioxide cooling unit, the condensing evaporator and the low-pressure circulation barrel are two separate devices. Due to the need of gravity liquid falling, the condensing evaporator must be placed above the low-pressure circulation barrel, so that the device is very high. Due to the height limitation in transportation, the device must be divided into upper and lower parts, which increases the cost of device manufacturing, transportation, installation and the like. In some projects, the height of the machine room is low. In order to enable the device to be installed, the height between the refrigeration pump and the low-pressure circulation barrel must be reduced, which greatly reduces the safety cavitation allowance of the refrigeration pump, and the refrigeration pump is prone to cavitation phenomenon, and even causes the refrigeration pump to fail in severe cases. SUMMARY
[0003] The present application belongs to the refrigeration technology, and particularly relates to a shell-and-tube condensing and evaporating circulation barrel applied to a cooling or cascade refrigeration system.
[0004] The present application has the beneficial effects compared with the prior art: on the one hand, the condensing evaporator and the low-pressure circulation barrel are made into a condensing and evaporating circulation barrel, the overall height of the device is reduced, the device can be transported integrally without being divided into upper and lower parts, the height between the refrigeration pump and the low-pressure circulation barrel can be ensured in the case that the height of the machine room is low, and the pump can be safely operated; on the other hand, the condensing evaporator and the low-pressure circulation barrel are designed as a two-in-one structure, the system design is simplified, the number of pipes is reduced, the along-path resistance of the pipeline is reduced, the system performance is improved, and the cost is saved; on the other hand, the condensing and evaporating circulation barrel has the functions of heat exchange of the condensing evaporator, gas-liquid separation and liquid storage of the low-pressure circulation barrel; on the other hand, the condensing and evaporating circulation barrel is a combined structure of the condensing evaporator and the low-pressure circulation barrel in the cooling system, or a combined structure of the condensing evaporator and the liquid storage device in the cascade system. BRIEF DESCRIPTION OF DRAWINGS
[0005] Figure 1 is a schematic diagram of the present application. DETAILED DESCRIPTION
[0006] Embodiment: Reference Figure 1 A condensation and evaporation cycle barrel for cold load, characterized in that: the device is provided with a liquid inlet 1, a left tube plate 2, a cylinder 3, a heat exchange tube 4, an air inlet 5, a right tube plate 6, an air outlet 7, a left liquid cavity 8, a liquid outlet 9, a right gas cavity 10; the bottom of the cylinder is provided with a liquid storage space 11; the liquid inlet 1 and the air outlet 7 are on both sides of the cylinder 3; the heat exchange tube 4 is installed in the gas phase zone; the air inlet 5 is on the side of the cylinder 3.
Claims
1. A shell and tube condensing evaporating cycle tank for use in a subcooling or cascade refrigeration system, characterized by: The equipment is provided with liquid inlet (1), left tube plate (2), cylinder (3), heat exchange tube (4), air inlet (5), right tube plate (6), air outlet (7), left liquid cavity (8), liquid outlet (9), right gas cavity (10); the bottom of the cylinder is provided with liquid storage space (11).
2. A shell and tube condensing evaporating cycle tank for use in a cascade or subcooling refrigeration system as claimed in claim 1, wherein: The liquid inlet (1) and the air outlet (7) are on one side of the cylinder (3) or on both sides of the cylinder (3).
3. A shell and tube condensing evaporating cycle tank for use in a subcooling or cascade refrigeration system according to claim 1 or 2, characterized in that: The heat exchange tube (4) is installed in the gas phase zone or partially installed in the liquid phase zone.
4. A shell and tube condensing evaporating cycle tank for use in a subcooling or cascade refrigeration system as claimed in claim 1 or 2, wherein: The air inlet (5) is on the top of the cylinder (3) or on the side of the cylinder (3).
5. A shell and tube condensing evaporating cycle tank for use in a cascade or subcooling refrigeration system as defined in claim 3 wherein: The air inlet (5) is on the top of the cylinder (3) or on the side of the cylinder (3).