CN201731687U

CN201731687U - Compound evaporator for low-temperature experimental device

Info

Publication number: CN201731687U
Application number: CN200920273826XU
Authority: CN
Inventors: 林向前
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-11-26
Filing date: 2009-11-26
Publication date: 2011-02-02
Anticipated expiration: 2019-11-26

Abstract

The utility model discloses a compound evaporator for a low-temperature experimental device, and relates to an evaporator device used in a refrigeration system of the low-temperature experimental device, which comprises a serpentine loop copper pipe, the serpentine loop copper pipe penetrates stamping sheets for fixing the stamping sheets at two ends of the serpentine loop copper pipe, and radiating fins are stuck and pressed on the surface of the serpentine loop copper pipe between the stamping sheets at two ends, thereby forming the evaporator with the radiating fins; and the compound evaporator is characterized in that straight pipe jacks are prefabricated on the stamping sheets, a straight copper pipe is arranged in the straight pipe jacks, and an electric heating rod is inserted in the straight copper pipe. The compound evaporator has the benefits that the low-temperature experimental device needs to achieve the high-precision constant temperature during long-term operation through the balance of a cold source and a heat source, as the electric heating rod is inserted into the copper pipe of the evaporator, and the radiating fins play the role of heat conduction, the compound evaporator can not only keep the cold-hot balance of the device, but also stay the surface frosting cycle of the evaporator due to the spread of heat from inside to outside of the electric heating rod.

Description

The compound evaporimeter of low temperature test equipment

Technical field

The utility model relate to a kind of in the equipment refrigeration system of low temperature test chamber employed evaporator, can prolong bag frost cycle and more effective energy-conservation defrost, specifically be the compound evaporimeter of low temperature test equipment.

Background technology

At present, known low temperature test equipment need reach the temperature high accuracy of long-time running by the balance of low-temperature receiver and thermal source, and low-temperature receiver is provided by refrigeration system.The white phenomenon of the evaporimeter bag that produces during the refrigeration system long-time running all adopts regularly artificial defrost and automatic heating defrost to solve at present.Need repeatedly evaporimeter Bao Shuan to be handled in the equipment long-time running process, the user must repeat the defrost operation, causes the fluctuation of equipment cavity temperature like this, has influenced experimentation and experimental result to a great extent.Need to introduce external heat in the defrost process simultaneously, the equipment power consumption is increased.

The utility model content

The technical problem that the utility model solved is to provide a kind of can not only effectively prolong the evaporimeter bag frost cycle, and when defrost, do not need additional thermal energy, and can be the minimum compound evaporimeter of low temperature test equipment is reduced in the influence of the temperature fluctuation in the equipment chamber.

The technical problem that the utility model solved realizes by the following technical solutions:

The compound evaporimeter of a kind of low temperature test equipment, comprise snakelike loop copper pipe, snakelike loop copper pipe passes stamping, stamping is fixed on the two ends of snakelike loop copper pipe, between the stamping at described two ends, snakelike loop copper pipe surface pressing fin, formation has the evaporimeter of fin, it is characterized in that: be shaped on the straight tube jack in the described stamping in advance, the straight tube copper pipe is set in the straight tube jack, in described straight tube copper pipe, insert electrically heated rod.

Described straight tube jack is shaped on two at least in advance in each stamping.

Described straight-through copper pipe surface also pressing has fin, and after described electrically heated rod was inserted in the straight tube copper pipe, whole heating regions of electrically heated rod all were coated in the straight-through copper pipe.

Also be shaped on inlet tube and outlet on described evaporimeter, the two ends with snakelike loop copper pipe are communicated with respectively.

It is constant that the beneficial effects of the utility model are that low temperature test equipment need reach the high-precision temperature of long-time running by the balance of low-temperature receiver and thermal source, and electrically heated rod is inserted in the evaporimeter copper pipe, use the heat conduction of fin, the cold and hot balance that not only can keep equipment, and the cycle of electrically heated rod heat diffusion energy retard evaporation device surface Bao Shuan from inside to outside.And when evaporimeter carries out defrost, continue previous status work by former electrically heated rod, and there is not the adding of other heat energy, reduced energy consumption.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is the front view of embodiment of the present utility model.

Fig. 3 is the left view of Fig. 2.

Fig. 4 is the schematic diagram of electrically heated rod.

Fig. 5 is the vertical view of Fig. 2.

Fig. 6 is the upward view of Fig. 2.

The specific embodiment

For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.

As Fig. 1, Fig. 2, shown in Figure 3, the compound evaporimeter of a kind of low temperature test equipment, comprise snakelike loop copper pipe 1, snakelike loop copper pipe 1 passes stamping 2, stamping 2 is fixed on the two ends of snakelike loop copper pipe 1, the diameter of wherein snakelike loop copper pipe 1 is 9.6mm, between the stamping 2 at two ends, with one is a loop back and forth, amount to six the tunnel, at snakelike loop copper pipe 1 surperficial pressing fin 3, the installation that is parallel to each other between the fin 3 so just forms the evaporimeter that has fin, is communicated with inlet pipeline 4 and outlet conduit 5 at two ports of snakelike loop copper pipe 1, be used for the circulation in the pipeline, in each stamping 2, be shaped on two straight tube jacks 21 in advance (referring to Fig. 5, Fig. 6), two straight tube copper pipes 6 are installed in the straight tube jack 21,6 ', straight tube copper pipe 6,6 ' diameter is 9.6mm, straight tube copper pipe 6, insert two electrically heated rods 7 in 6 ', 7 ', electrically heated rod 7,7 ' diameter is 8mm.

When straight-through copper pipe 6,6 ' is installed between the two ends stamping 2, there is fin 3 on surface also pressing, after electrically heated rod 7,7 ' was inserted in the straight tube copper pipe 6,6 ', electrically heated rod 7, whole heating regions of 7 ' all were coated in the straight-through copper pipe 6,6 ', as shown in Figure 4.

More than show and described basic principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that describes in the foregoing description and the specification just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.

Claims

1. compound evaporimeter of low temperature test equipment, comprise snakelike loop copper pipe, snakelike loop copper pipe passes stamping, stamping is fixed on the two ends of snakelike loop copper pipe, between the stamping at described two ends, snakelike loop copper pipe surface pressing fin, formation has the evaporimeter of fin, it is characterized in that: be shaped on the straight tube jack in the described stamping in advance, the straight tube copper pipe is set in the straight tube jack, in described straight tube copper pipe, insert electrically heated rod.

2. according to the compound evaporimeter of the described low temperature test equipment of claim 1, it is characterized in that: described straight tube jack is shaped on two at least in advance in each stamping.

3. according to the compound evaporimeter of the described low temperature test equipment of claim 1, it is characterized in that: described straight-through copper pipe surface also pressing has fin, after described electrically heated rod was inserted in the straight tube copper pipe, whole heating regions of electrically heated rod all were coated in the straight-through copper pipe.

4. according to the compound evaporimeter of the described low temperature test equipment of claim 1, it is characterized in that: also be shaped on inlet tube and outlet on the described evaporimeter, the two ends with snakelike loop copper pipe are communicated with respectively.