CN-224230805-U - Heat preservation knapsack suitable for phase change heat accumulating plate type heat exchanger

CN224230805UCN 224230805 UCN224230805 UCN 224230805UCN-224230805-U

Abstract

The utility model relates to a heat-preserving knapsack suitable for a phase-change heat-accumulating plate-type heat exchanger, which comprises a heat-preserving knapsack shell, a vacuum heat-insulating heat-preserving layer, a heat-accumulating material outlet, a heat-accumulating heat-preserving knapsack liner, a heat-accumulating material inlet and a phase-change heat-accumulating material, wherein the vacuum heat-insulating heat-preserving layer and the heat-accumulating heat-preserving knapsack liner are sequentially arranged in the heat-preserving knapsack shell, the heat-accumulating material outlet and the heat-accumulating material inlet are respectively arranged at two ends of the heat-preserving knapsack shell, and when the heat-preserving knapsack is used, the phase-change heat-accumulating material is filled in the heat-accumulating heat-preserving knapsack liner through the heat-accumulating material inlet. The heat accumulating type plate heat exchanger heat preserving knapsack unit is formed by filling phase change heat accumulating materials with different characteristics according to the use environment. The heat preservation knapsack units can effectively wrap the plate-type heat exchanger, and can effectively preserve heat of equipment and keep the equipment relatively stable in temperature.

Inventors

WU YANJIA
Shen Qiaoyong
JIN KAICHEN
LI NA

Assignees

中国船舶集团有限公司第七〇四研究所

Dates

Publication Date: 20260512
Application Date: 20250409

Claims (7)

1. The heat-preserving knapsack suitable for the phase-change heat-accumulating plate heat exchanger is characterized by comprising a heat-preserving knapsack shell, a vacuum heat-insulating heat-preserving layer, a heat-accumulating material outlet, a heat-accumulating heat-preserving knapsack liner, a heat-accumulating material inlet and a phase-change heat-accumulating material, wherein the vacuum heat-insulating heat-preserving layer and the heat-accumulating heat-preserving knapsack liner are sequentially arranged inside the heat-preserving knapsack shell, the heat-accumulating material outlet and the heat-accumulating material inlet are respectively arranged at two ends of the heat-preserving knapsack shell, and when the heat-preserving knapsack is used, the phase-change heat-accumulating material is filled in the heat-accumulating heat-preserving knapsack liner through the heat-accumulating material inlet.
2. The heat preservation backpack for a phase change heat accumulating plate heat exchanger according to claim 1, wherein the heat accumulating material outlet is arranged on the heat preservation backpack shell and is used for discharging the phase change heat accumulating material through the heat accumulating material outlet in case of replacement or emergency.
3. The heat preservation knapsack for the phase-change heat accumulating type plate heat exchanger, according to claim 1, is characterized in that the heat preservation knapsack for the phase-change heat accumulating type plate heat exchanger is filled with phase-change heat accumulating materials with different characteristics according to the use environment, and a heat preservation knapsack unit for the phase-change heat accumulating type plate heat exchanger is formed.
4. The heat preservation knapsack suitable for the phase-change heat accumulating plate heat exchanger according to claim 1, wherein the phase-change heat accumulating material is paraffin-based composite phase-change material, the phase-change temperature is 45-60 ℃, the latent heat value is more than or equal to 180kJ/kg, and the phase-change heat accumulating material is filled in the inner container of the heat accumulating heat preservation knapsack and is in direct contact with the plate heat exchanger unit.
5. The heat preservation knapsack suitable for the phase change heat accumulating plate heat exchanger is characterized in that the heat preservation knapsack shell is of a strength structure, the vacuum heat insulation heat preservation layer is an ambient temperature heat preservation layer, the heat accumulating heat preservation knapsack inner container is a heat exchange contact layer, and when in use, the heat accumulating heat preservation knapsack shell contacts the environment, and the heat accumulating heat preservation knapsack inner container contacts the surface of the plate heat exchanger unit.
6. The heat preservation knapsack for the phase change heat accumulating plate heat exchanger, according to claim 1, is characterized in that a light carbon fiber frame is adopted as a heat preservation knapsack shell, and fireproof and waterproof fabrics are covered outside the heat preservation knapsack shell.
7. The heat preservation backpack for the phase-change heat accumulating type plate heat exchanger according to claim 1, wherein the plurality of heat preservation backpack units for the phase-change heat accumulating type plate heat exchanger are wrapped outside the plate heat exchanger units.

Description

Heat preservation knapsack suitable for phase change heat accumulating plate type heat exchanger Technical Field The utility model relates to a heat-preservation knapsack for a phase-change heat-accumulating plate heat exchanger, in particular to a heat-preservation knapsack which can utilize a phase-change heat-accumulating material for temperature adjustment and heat preservation under the condition that the external temperature and the internal temperature of equipment fluctuate, and belongs to the technical field of plate heat exchangers. Background The open air heat exchange equipment on the deck of a ship in the sea or in the polar region in winter is required to work in an environment of minus 30 ℃. During the operation of the equipment, the conditions of larger fluctuation of the external temperature and the internal temperature of the equipment exist, and if the equipment can keep the temperature relatively stable while preserving heat, the service life of the heat exchange equipment can be prolonged. The existing phase change heat storage device (such as CN 118463686A) for ships has high-efficiency heat storage capability, but has the problems of huge volume, immobility, complex maintenance and the like. The traditional heat-preservation knapsack mostly adopts electric heating or chemical heating paste, has the defects of short endurance, low thermal efficiency and the like. In order to solve the problem that heat source temperature fluctuation still easily occurs when traditional heat preservation cotton is coated on ship deck open air heat exchange equipment in sea areas or polar regions in winter, a heat storage type plate heat exchanger heat preservation knapsack capable of achieving miniaturized energy storage and simultaneously achieving convenient disassembly and easy replacement and maintenance is urgently needed. The phase-change heat storage material is filled in the heat storage heat preservation knapsack, so that the temperature can be stabilized near a phase-change temperature point outside the heat preservation function. Disclosure of Invention The utility model provides a heat-preserving knapsack suitable for a phase-change heat-accumulating plate heat exchanger, which is used for meeting the requirement that the heat-preserving temperature of the plate heat exchanger used on a ship deck in the open air is more stable. And the use requirements of miniaturization, high efficiency and integration are met, and the problems of convenient disassembly and easy replacement and maintenance are required to be solved. The heat-preserving knapsack comprises a heat-preserving knapsack shell, a vacuum heat-insulating heat-preserving layer, a heat-preserving material outlet, a heat-preserving knapsack liner, a heat-preserving material inlet and a phase-change heat-preserving material, wherein the vacuum heat-insulating heat-preserving layer and the heat-preserving knapsack liner are sequentially arranged in the heat-preserving knapsack shell, the heat-preserving material outlet and the heat-preserving material inlet are respectively arranged at two ends of the heat-preserving knapsack shell, and when the heat-preserving knapsack is used, the phase-change heat-preserving material is filled in the heat-preserving knapsack liner through the heat-preserving material inlet. Further, a heat storage material outlet on the heat preservation knapsack shell is used for discharging the phase change heat storage material through the heat storage material outlet in the case of replacement or emergency. Further, the phase-change heat-accumulating type plate heat exchanger heat-preserving knapsack unit is formed by filling phase-change heat-accumulating materials with different characteristics according to the use environment. Further, the phase-change heat storage material is a paraffin-based composite phase-change material, the phase-change temperature is 45-60 ℃, the latent heat value is more than or equal to 180kJ/kg, and the phase-change heat storage material is filled in the heat storage heat preservation knapsack liner and is in direct contact with the plate heat exchanger unit. Further, the heat-preserving knapsack shell is of a strength structure, the vacuum heat-insulating layer is an ambient temperature heat-preserving layer, and the heat-accumulating heat-preserving knapsack liner is a heat-exchanging contact layer; when in use, the heat-preserving knapsack outer shell contacts with the environment, and the heat-accumulating heat-preserving knapsack inner container contacts with the surface of the plate heat exchanger unit. Further, the shell of the heat-insulating knapsack adopts a lightweight carbon fiber frame, and is externally covered with fireproof and waterproof fabrics. Further, the plurality of phase-change heat accumulating type heat preservation knapsack units are wrapped outside the plate heat exchanger units. The beneficial effects of the utility model are as follows: 1. Because the pha