Heat exchanger

FIELD: mechanics.

SUBSTANCE: invention relates to refrigerating equipment used in climate tests. The proposed heat exchanger comprises a housing and evaporator. The heat exchanger housing is separated by the main baffle into inlet and outlet chambers. The inlet chamber inlet accommodates deflecting baffle. The outlet chamber outlet accommodates the outlet pipe-bend and houses the evaporator and additional baffle. The inlet and outlet chambers communicate via a gap arranged between the main baffle and heat exchanger housing. The fan is arranged between the inlet pipe-bend and the housing. The bypass is provided for between the inlet and outlet pipe-bends.

EFFECT: longer faultless operation of evaporator.

2 cl, 1 dwg

 

The invention relates to refrigeration equipment used in installations for conducting environmental tests in a wide temperature range from -80C to +200C, which determines the specificity of this equipment. Due to the fact that the evaporator of the refrigeration unit is placed in the climatic chamber volume (Russian Federation Patent No. 2076350, CL G05D 23/30), where the temperature can reach +200C, the gas pressure in the evaporator exceeds the allowable limits, which significantly reduces the uptime of the evaporator and a refrigeration unit for which the evaporator is loading.

The closest in technical essence and the achieved result for the proposed device is a plate evaporator (see A.S. SU 1759118 A1, Plate evaporator. Medvedev Z.P., CL F25B 39/02)containing packages of flat sheets, forming channels for the cooling medium and the channels for the refrigerant. The disadvantage of this vaporizer is that a cooled environment, the temperature of which reaches up to +200C, in direct contact with the channels, which evaporates the refrigerant, which leads to unacceptable increase in pressure in these channels, and hence in the refrigeration unit.

The aim of the invention is to increase uptime of the evaporator and the refrigerating unit through which the devices normal temperature mode.

A heat exchanger comprising a housing and an evaporator, characterized in that the housing of the heat exchanger is divided into a primary partition on the input and output camera input camera input has an input branch, and installed inside the bumper retainer, the output of the output of the camera is set to output branch, and installed inside the evaporator and an additional partition, and the input and output chambers are connected by gap made between the primary baffle and the housing of the heat exchanger.

Between the input diversion and case fan installed, and between the input and output taps installed bypass.

The drawing shows a diagram of the heat exchanger.

The purpose of the invention is achieved by the installation of the evaporator 9 in the heat-insulated housing 6, separated primary partition 5 on input 2 and the output 7 of the camera to input 1 and output 10 taps, installation of the bumper 3 and the additional 8 partitions and the gap 4 between the primary baffle and the housing, and the bumper 3 and an additional 8 partitions installed in such a way that the incoming input allocation 1 the air is pre-cooled in the inlet chamber 2 before it reaches the evaporator 9.

To improve heat transfer between the input tap 1 and the housing 6 of the heat exchanger installation of the fan, and between input 1 and output 10 taps sets forth the tsya bypass, that increases the efficiency of the heat exchanger.

The heat exchanger works as follows. The air flow circulating in a climatic chamber, flows through the input tap 1 in the input chamber 2 and reflected from the bumper of wall 3 through the gap 4 between the main wall 5 and the housing 6 of the heat exchanger, flows into the output chamber 7 having an extra partition 8, pre-cooled air is supplied to the evaporator 9 and then output through the outlet 10 is fed back into the climate chamber.

1. A heat exchanger comprising a housing and an evaporator, characterized in that the housing of the heat exchanger is divided into a primary partition on the input and output camera input camera input has an input branch, and installed inside the bumper retainer, the output of the output of the camera is set to output branch, and installed inside the evaporator and an additional partition, and the input and output chambers are connected by gap made between the primary baffle and the housing of the heat exchanger.

2. The heat exchanger according to claim 1, characterized in that between the input diversion and case fan installed, and between the input and output taps installed bypass.



 

Same patents:

FIELD: heating.

SUBSTANCE: invention relates to heat exchange apparatus and can be used in power engineering, gaseous, metallurgical, chemical and food industrial sectors. The shell-and-tube heat exchanger contains a system of different-type partitions, alternating among themselves along the shell forming chambers in the tube side, part of which is installed with a circular clearance relative to the shell, and the others are adjacent to the shell and are supplied with a central hole. In the chambers there are longitudinal spiral partitions with opposite spin angle, aligned to them and adjacent ends to the edges of the perpendicular partition. The pipes are provided with fins, and the fins are made in such sizes and shapes, that a helical cavity is formed on the inner surface of the heat-exchanger shell. The fins can be made from different-type partitions, alternating among themselves along the shell forming chambers in the tube side, depending on the versions of implementing the fins. The heated medium is directed either tangentially along the helical cavity, or turned by 180. To improve contact of the fins with the pipe, a "skirt" is formed.

EFFECT: intense heat transfer.

2 dwg

Heat-exchanger // 2319917

FIELD: heat-exchanging equipment, particularly tube-and-shell heat-exchangers.

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EFFECT: enhanced efficiency.

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FIELD: heat-exchangers, particularly submersible ones.

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5 dwg

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EFFECT: the invention allows to improve heat-exchanging.

2 dwg

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The heat exchanger // 2027136
The invention relates to shell and tube heat exchangers used in heating systems and in various industries (chemical, food and so on)

The invention relates to tapes of the screen sections warmth retaining plants used in ferrous metallurgy on the roller of wide-strip hot rolling mills

FIELD: heating.

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EFFECT: exclusion of evaporator damage during its flushing with hot water.

4 dwg

FIELD: cooling equipment and other industry, for instance, chemical industry.

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1 cl, 1 dwg

FIELD: refrigeration equipment.

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3 cl, 1 dwg

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20 cl, 8 dwg

FIELD: mechanical engineering.

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