CN210861822U - A spherical condensing evaporator - Google Patents

Abstract

The utility model discloses a spherical condensation evaporator, which comprises N hollow spherical shells, wherein the diameters of the N shells are gradually reduced from outside to inside to form N +1 cavities inside as high-temperature and low-temperature circulating cavities; a liquid outlet of the cavity of the central shell is connected with one end of a low-temperature circulating liquid outlet pipe extending into the cavity from the outside, and a second shell from the outside to the inside is connected with one end of a low-temperature circulating air inlet pipe extending into the cavity from the outside through an air inlet; the cavity between the central shell and the adjacent shell is connected with one end of a high-temperature circulating liquid inlet pipe extending from the outside, and the gas outlet of the shell on the outermost layer is connected with a high-temperature circulating gas outlet pipe; the cavity between the central shell and the adjacent shell is communicated with the high-temperature circulating cavity on the outer side through a high-temperature circulating gas connecting pipe, the cavity of the central shell is communicated with the low-temperature circulating cavity on the outer side through a low-temperature circulating gas connecting pipe, and the high-temperature circulating cavity and the low-temperature circulating cavity are staggered at intervals. The utility model discloses compact structure reduces the volume of filling of refrigeration working medium, enables refrigerating system's performance improvement.

Description

A spherical condensing evaporator

technical field

The utility model relates to the technical field of refrigeration, in particular to a spherical condensation evaporator.

Background technique

In the cascade refrigeration system, the liquid after throttling and depressurization in the high temperature circulation and the gas discharged from the low temperature refrigeration compressor enter the condensing evaporator, the two refrigerant fluids exchange heat in the condensing evaporator, and the low temperature circulating refrigerant releases heat and condenses , The high temperature circulating refrigerant absorbs heat and evaporates. The existing condensing evaporator has a complex structure, a large external size, a large amount of refrigerant charging, a large number of consumables, and a large heat transfer temperature difference, resulting in a decrease in heat transfer performance. High and low temperature circulating refrigeration compressors The pressure ratio increases, the performance of the cascade refrigeration system decreases, and the energy consumption increases.

Therefore, it is necessary to develop a compact spherical condensing evaporator to improve the heat transfer efficiency of high and low temperature fluids, reduce the amount of refrigerant charged, reduce the initial investment, and improve the thermal performance of the refrigeration system.

Utility model content

The purpose of this utility model is to provide a spherical condensing evaporator in view of the technical defects existing in the prior art, so as to solve the efficient heat transfer in the condensation and evaporation process of the high and low temperature circulating working medium, reduce the charging amount of the refrigerant, and realize the refrigeration system. improve performance and save energy.

The technical scheme adopted by the utility model to solve its technical problems is:

A spherical condensing evaporator, comprising N hollow spherical shells, the diameters of the N shells gradually decrease from the outside to the inside, and N+1 cavities are formed inside as high and low temperature circulation cavities ; The liquid outlet of the cavity of the central shell is connected to one end of the low temperature circulation liquid outlet pipe extending from the outside, and the second shell from the outside to the inside is connected to one end of the low temperature circulation air inlet pipe extending from the outside through the air inlet; The cavity between the central shell and the adjacent shells is connected with one end of the high-temperature circulating liquid inlet pipe extending from the outside, and the air outlet on the outermost shell is connected with the high-temperature circulating gas outlet pipe; The cavity between the shells is connected with the outer high temperature circulation cavity through the high temperature circulating gas connection pipe, and the central shell cavity is connected with the outer low temperature circulation cavity through the low temperature circulation gas connection pipe, and the high temperature circulation cavity is connected with the low temperature circulation cavity. The cavities are staggered at intervals.

Wherein, the shells are respectively formed by welding two hemispheres.

Wherein, the other end of the high temperature circulation air outlet pipe is connected with the intake pipe of the high temperature circulation refrigeration compressor, and the other end of the high temperature circulation liquid inlet pipe is connected with the outlet of the high temperature circulation throttling and decompression element.

Wherein, the other end of the low temperature circulation liquid outlet pipe is connected to the inlet of the low temperature circulation throttling and decompression element, and the other end of the low temperature circulation inlet pipe is connected to the exhaust pipe of the refrigeration compressor.

Wherein, the low temperature circulation liquid outlet pipe is arranged obliquely on one side of the lower part, and the high temperature circulation gas outlet pipe is vertically arranged at the top.

Wherein, the low temperature circulation air inlet pipe and the high temperature circulation liquid inlet pipe are arranged horizontally and oppositely arranged.

Wherein, the bottom of the outermost shell is connected with a support.

The spherical condensing evaporator of the utility model has a compact structure, reduces the charging amount of the refrigeration working medium, reduces the initial investment, solves the efficient heat transfer in the condensation and evaporation process of the high and low temperature circulating working medium, improves the performance of the refrigeration system and saves energy.

Description of drawings

Figure 1 shows a schematic diagram of the spherical condensation evaporator of the present invention.

Detailed ways

The present utility model will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

As shown in Figure 1, the spherical condensation evaporator of the present utility model includes:

High temperature circulating gas outlet pipe 1, second high temperature circulating gas connecting pipe 2, first high temperature circulating gas connecting pipe 3, shell 4, low temperature circulating air inlet pipe 5, low temperature circulating liquid outlet pipe 6, second low temperature circulating liquid connecting pipe 7, A low temperature circulating liquid connecting pipe 8 , a support 9 , a fourth casing 10 , a first casing 11 , a central casing 12 , a high temperature circulating liquid inlet pipe 13 , a second casing 14 , and a third casing 15 .

The shell 4 , the fourth shell 10 , the third shell 15 , the second shell 14 , the first shell 11 , and the center shell 12 are hollow spherical shapes, which are respectively welded and formed by two hemispheres to form the shell 4 with the fourth shell 10, the fourth shell 10 and the third shell 15, the third shell 15 and the second shell 14, the second shell 14 and the first shell 11, the first shell 11 and the center Between the shells 12, and the six cavities in the center shell 12.

The high temperature circulating liquid inlet pipe 13 horizontally passes through the through orifices of the casing 4, the fourth casing 10, the third casing 15, the second casing 14 and the first casing 11, and the outer surface is connected to the casing 4, the fourth casing The corresponding orifices of the casing 10 , the third casing 15 and the second casing 14 are welded and sealed, one end is welded and sealed with the corresponding orifices of the first casing 11 , and the other end is connected to the outlet of the high-temperature circulation throttling and pressure-reducing element. connect.

The low-temperature circulation liquid outlet pipe 6 is inclined to the ground and passes through the through holes of the outer shell 4 , the fourth shell 10 , the third shell 15 , the second shell 14 , the first shell 11 and the central shell 12 , The outer surface is welded and sealed with the corresponding orifices of the outer casing 4 , the fourth casing 10 , the third casing 15 , the second casing 14 , and the first casing 11 , and one end is welded and sealed with the corresponding orifice of the central casing 12 , The other end of the low temperature circulation liquid outlet pipe 6 is connected to the inlet of the low temperature circulation throttling and decompression element.

The low temperature circulation air intake pipe 5 horizontally passes through the through holes of the casing 4 and the fourth casing 10 , the outer surface is welded and sealed with the corresponding orifice of the casing 4 , and one end is welded and sealed with the corresponding orifice of the fourth casing 10 . , the other end of the low temperature circulation intake pipe 5 is welded with the exhaust pipe of the refrigeration compressor.

The second high-temperature circulating gas connecting pipe 2 vertically passes through the through holes of the fourth casing 10 and the third casing 15 , and the two ends are welded to the corresponding holes of the fourth casing 10 and the third casing 15 respectively. The sealing connection connects the two cavities between the outer casing 4 and the fourth casing 10 , and the third casing 15 and the second casing 14 .

The first high-temperature circulating gas connecting pipe 3 vertically passes through the through holes of the second casing 14 and the first casing 11 , and the two ends are welded to the corresponding holes of the second casing 14 and the first casing 11 respectively. The sealing connection connects the two cavities between the third casing 15 and the second casing 14 , and the first casing 11 and the central casing 12 .

The second low-temperature circulating liquid connecting pipe 7 vertically passes through the through holes of the first casing 11 and the central casing 12 , and the two ends are respectively welded and sealed with the corresponding holes of the first casing 11 and the central casing 12 . , connect the cavity in the center shell 12 and the two cavities between the second shell 14 and the first shell 11 .

The first low-temperature circulating liquid connecting pipe 8 vertically passes through the through holes of the third shell 15 and the second shell 14 , and the two ends are welded to the corresponding holes of the third shell 15 and the second shell 14 respectively. The sealing connection connects the cavity between the fourth shell 10 and the third shell 15 and the second shell 14 and the first shell 11 .

The orifice opened on the top of the casing 4 is welded with one end of the high temperature circulating air outlet pipe 1 , and the other end of the high temperature circulating air outlet pipe 1 is welded with the intake pipe of the high temperature circulating refrigeration compressor.

Wherein, the bottom of the casing 4 is welded with a support 9, so as to realize the support and installation of the whole evaporator.

When the refrigeration system is running, the gas discharged from the low-temperature refrigeration compressor enters the cavity of the fourth shell 10 and the third shell 15 through the low-temperature circulation intake pipe 5, and enters the second shell through the first low-temperature circulating liquid connecting pipe 8 14 and the cavity of the first shell 11, and then enter the inner cavity of the central shell 12, and release the heat-condensed liquid to the low-temperature circulation liquid outlet pipe 6, and enter the low-temperature circulation throttling and pressure-reducing element;

The liquid after the high temperature circulation throttling and depressurization enters the cavity between the first casing 11 and the central casing 12 through the high temperature circulation liquid inlet pipe 13, and enters the third casing 15 and the third casing 15 through the first high temperature circulating gas connecting pipe 3. The cavity between the second shells 14 enters the cavity between the shell 4 and the fourth shell 10 through the second high-temperature circulating gas connection pipe 2, and exchanges heat with the low-temperature circulating working medium successively. High temperature circulating air outlet pipe 1 to high temperature circulating refrigeration compressor.

It should be noted that, in the present invention, the number of the housings is calculated and determined according to the cooling load, the heat exchange area and the charging capacity, and is not limited to the above-mentioned embodiments.

The above are only the preferred embodiments of the present invention. It should be pointed out that for those skilled in the art, some improvements and modifications can be made without departing from the principles of the present invention. Improvement and modification should also be regarded as the protection scope of the present invention.

Claims (7)

1. The spherical condensation evaporator is characterized by comprising N hollow spherical shells, wherein the diameters of the N hollow spherical shells are gradually reduced from outside to inside, and N +1 cavities are formed inside the shells and are used as high-temperature and low-temperature circulating cavities; a liquid outlet of the cavity of the central shell is connected with one end of a low-temperature circulating liquid outlet pipe extending into the cavity from the outside, and a second shell from the outside to the inside is connected with one end of a low-temperature circulating air inlet pipe extending into the cavity from the outside through an air inlet; the cavity between the central shell and the adjacent shell is connected with one end of a high-temperature circulating liquid inlet pipe extending from the outside, and the gas outlet on the shell on the outermost layer is connected with a high-temperature circulating gas outlet pipe; the cavity between the central shell and the adjacent shell is communicated with the high-temperature circulating cavity on the outer side through a high-temperature circulating gas connecting pipe, the cavity of the central shell is communicated with the low-temperature circulating cavity on the outer side through a low-temperature circulating gas connecting pipe, and the high-temperature circulating cavity and the low-temperature circulating cavity are staggered at intervals.

2. A spherical condensing evaporator according to claim 1 wherein said shell is formed by welding two hemispheres respectively.

3. The spherical condensation evaporator according to claim 1, wherein the other end of the high-temperature circulation gas outlet pipe is connected with a gas inlet pipe of a high-temperature circulation refrigeration compressor, and the other end of the high-temperature circulation liquid inlet pipe is connected with an outlet of a high-temperature circulation throttling and pressure reducing element.

4. The spherical condensation evaporator according to claim 1, wherein the other end of the low-temperature circulation liquid outlet pipe is connected with the inlet of the low-temperature circulation throttling and pressure reducing element, and the other end of the low-temperature circulation gas inlet pipe is connected with the exhaust connecting pipe of the refrigeration compressor.

5. The spherical condensing evaporator according to claim 1, wherein said low temperature circulating liquid outlet pipe is obliquely arranged at one side of the lower part, and said high temperature circulating gas outlet pipe is vertically arranged at the top.

6. The spherical condensing evaporator according to claim 1, wherein said low temperature circulating intake pipe and said high temperature circulating intake pipe are horizontally arranged and oppositely disposed.

7. A spherical condensing evaporator according to claim 1 wherein a seat is attached to the bottom of the outermost shell.

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