CN218821122U - Condenser and refrigeration equipment - Google Patents

Abstract

The utility model provides a condenser and a refrigeration device; the condenser comprises at least two groups of heat exchange tube assemblies, a connecting tube and a gas-liquid separation plate; the connecting pipe is provided with a first interface, a second interface and a third interface, the first interface and the second interface are respectively connected with the two groups of heat exchange pipe assemblies, and the third interface is lower than the first interface and the second interface; the gas-liquid separation plate is arranged on the connecting pipe and used for sealing the third interface, and liquid separation holes are formed in the gas-liquid separation plate and can be used for forming liquid films by utilizing liquid refrigerants. Above-mentioned condenser during operation, the liquid refrigerant that the refrigerant produced in the cooling process is in time separated away by the gas-liquid separation board, and the gas-liquid separation board both can play the effect of separation liquid refrigerant and gaseous refrigerant, can also play and block the gaseous refrigerant and send into the effect of next group heat exchange tube assembly, and the structure is very simple ingenious.

Description

Condenser and refrigeration equipment

Technical Field

The utility model relates to a refrigeration plant technical field, in particular to condenser and refrigeration plant.

Background

The refrigerant is at the condenser in-process of condensation, the refrigerant becomes liquid by the gaseous state gradually, refrigerant gaseous state velocity of flow is big, the liquid velocity of flow is little, the velocity of flow difference between the gas-liquid two-phase refrigerant can produce certain frictional resistance, and the runner of current most condenser generally adopts single flow path, under the single flow path condition, the liquid refrigerant of elder generation condensation all need occupy the pipeline inner volume in whole condensation process, gaseous refrigerant heat transfer area has been reduced relatively, and then influences the heat exchange efficiency of condenser. Therefore, the prior art has the technical scheme of carrying out gas-liquid separation on the refrigerant in a single flow path, but the structure is complex.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a condenser and refrigeration plant can in time separate the liquid refrigerant that produces in the condensation process under the condition that adopts comparatively simple structure, reduces the time that liquid refrigerant occupy heat exchange tube assembly inner space, improves heat exchange efficiency.

According to the utility model discloses condenser of first aspect embodiment, including at least two sets of heat exchange tube assembly, connecting pipe and gas-liquid separation board. The connecting pipe is provided with a first interface, a second interface and a third interface, the first interface and the second interface are respectively connected with the two groups of heat exchange pipe assemblies, and the third interface is lower than the first interface and the second interface; the gas-liquid separation plate is arranged on the connecting pipe and used for sealing the third connector, and liquid separation holes are formed in the gas-liquid separation plate and can be used for forming liquid films by utilizing liquid refrigerants.

According to the utility model discloses condenser has following beneficial effect at least: the refrigerant enters one group of heat exchange tube assemblies to generate part of liquid refrigerant in the cooling process, the liquid refrigerant enters the connecting tube and then falls to the gas-liquid separation plate, a liquid film is formed at the liquid separation hole, after the liquid film is formed, only the liquid refrigerant can pass through the liquid separation hole, the gaseous refrigerant cannot pass through the liquid separation hole, and the gaseous refrigerant enters the next group of heat exchange tube assemblies to be cooled continuously under the action of the gas-liquid separation plate; by last, the liquid refrigerant that the refrigerant produced in the cooling process can in time be separated away by the gas-liquid separation board, and the gas-liquid separation board both can play the effect of separation liquid refrigerant and gaseous refrigerant, can also play the effect that blocks the gaseous refrigerant and send into next group heat exchange tube assembly, and the structure is very simple ingenious, and job stabilization is reliable, low cost.

According to some embodiments of the utility model, with the connecting pipe is connected two sets of the heat exchange tube assembly is upper and lower range upon range of.

According to the utility model discloses a some embodiments are located with one side the connecting pipe is provided with more than two at least, and is located with one side the connecting pipe communicates each other.

According to the utility model discloses a few embodiments, the length of heat exchange tube assembly is unanimous, and is different the both ends of heat exchange tube assembly all align the setting, lie in the difference with one side the connecting pipe concatenates in order to form straight tubular structure.

According to the utility model discloses a some embodiments still include first female pipe, be provided with the baffle in the first female pipe in order will first female pipe falls into about two sections, the upper segment of first female pipe is provided with the refrigerant import, the upper segment of first female pipe with be located the highest position heat exchange tube subassembly intercommunication.

According to some embodiments of the utility model, along gaseous refrigerant's flow direction, the circulation cross section of condenser reduces gradually.

According to the utility model discloses a some embodiments, every group the heat exchange tube subassembly includes an at least microchannel pipe, along gaseous state refrigerant flow direction, the condenser the quantity of microchannel pipe reduces gradually.

According to the utility model discloses a some embodiments, divide the liquid hole to set up to circular through-hole, divide the diameter in liquid hole to be not more than 3mm.

According to some embodiments of the utility model, with the connecting pipe is connected two sets ofly the heat exchange tube assembly is the tiled setting.

According to the utility model discloses refrigeration plant of second aspect embodiment, including the condenser of first aspect embodiment.

According to the utility model discloses refrigeration plant has following beneficial effect at least: in the condenser of the refrigeration equipment in the embodiment, the refrigerant enters one group of heat exchange tube assemblies to generate part of liquid refrigerant in the cooling process, the liquid refrigerant enters the connecting tube and then falls to the gas-liquid separation plate, a liquid film is formed at the liquid separation hole, the liquid separation hole can only allow the liquid refrigerant to pass through after the liquid film is formed, the gaseous refrigerant cannot pass through the liquid separation hole, and the gaseous refrigerant enters the next group of heat exchange tube assemblies to be continuously cooled under the action of the gas-liquid separation plate; by the above, the liquid refrigerant generated by the refrigerant in the cooling process is timely separated by the gas-liquid separation plate, the gas-liquid separation plate can play a role in separating the liquid refrigerant from the gaseous refrigerant, and can also play a role in blocking the gaseous refrigerant and sending the gaseous refrigerant into the next group of heat exchange tube assemblies, and the heat exchange tube assembly has the advantages of very simple and ingenious structure, stable and reliable work and low cost. Therefore, under the condition of the same condensation effect, the condenser in the embodiment can be smaller in size, lower in cost and more stable in work, so that the refrigeration equipment is smaller in size, lower in cost and more stable in work.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

FIG. 1 is a schematic diagram of one embodiment of a condenser;

FIG. 2 is a schematic diagram of another embodiment of a condenser;

FIG. 3 is a schematic view of an embodiment of a gas-liquid separation plate.

Reference numerals

A connection pipe 100; a first interface 110; a second interface 120;

a refrigerant inlet 210; a refrigerant outlet 220;

a gas-liquid separation plate 300; a dispensing hole 310;

a first set of heat exchange tube assemblies 410; a second set of heat exchange tube assemblies 420; a third set of heat exchange tube assemblies 430; a fourth set of heat exchange tube assemblies 440; a fifth set of heat exchange tube assemblies 450; a sixth set of heat exchange tube assemblies 460; a microchannel tube 470;

a left segment 510; a left two segment 520; a left three-segment 530; a left four-segment 540; a baffle 550; a first mother tube 560; a second main tube 570;

a right segment 610; a right two segment 620; the right three sections 630.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the directional descriptions, such as the directions or positional relationships indicated by the left and right, are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, but not for indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present invention.

In the description of the present invention, if there are first and second descriptions for distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the precedence of the indicated technical features.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

As shown in fig. 2 and 3, the present embodiment provides a condenser including: the heat exchanger comprises six groups of heat exchange tube assemblies, four sections of connecting tubes 100 and four gas-liquid separation plates 300, wherein the six groups of heat exchange tube assemblies are connected in series and are respectively called as a first group of heat exchange tube assemblies 410, a second group of heat exchange tube assemblies 420, a third group of heat exchange tube assemblies 430, a fourth group of heat exchange tube assemblies 440, a fifth group of heat exchange tube assemblies 450 and a sixth group of heat exchange tube assemblies 460, the first heat exchange tube assemblies 410 are connected with a refrigerant inlet 210, the sixth heat exchange tube assemblies 460 are connected with a refrigerant outlet 220, the connecting tubes 100 are provided with a first interface 110, a second interface 120 and a third interface, the first interface 110 and the second interface 120 are respectively connected with two adjacent groups of heat exchange tube assemblies, and the third interface is lower than the first interface 110 and the second interface 120; the gas-liquid separation plate 300 is arranged on the connection pipe 100 and used for sealing the third interface, the gas-liquid separation plate 300 is provided with liquid separation holes 310, the liquid separation holes 310 are arranged to form liquid films by using liquid refrigerants, after the liquid films are formed, only the liquid refrigerants can pass through the liquid separation holes 310, and the gaseous refrigerants cannot pass through the liquid separation holes 310; the liquid refrigerant separated from the liquid separating hole 310 is sent into the subsequent connecting pipe 100, the liquid refrigerant in the connecting pipe 100 at the lowest position is sent to the refrigerant outlet 220 through the sixth heat exchanging pipe assembly 460, and the gaseous refrigerant continuously flows in the heat exchanging pipe assemblies after being connected in series.

In the above embodiment, after the gaseous refrigerant enters the first group of heat exchange tube assemblies 410 from the refrigerant inlet 210, a part of liquid refrigerant is generated after being condensed by the first group of heat exchange tube assemblies 410, after the liquid refrigerant reaches the first connecting tube 100, the liquid refrigerant flows to the first gas-liquid separation plate 300 under the action of gravity, and a liquid film is formed at the liquid separation hole 310, so that the gaseous refrigerant is prevented from entering the liquid separation hole 310, under the action of the liquid film, the gaseous refrigerant enters the second group of heat exchange tube assemblies 420, the liquid refrigerant generated in the first group of heat exchange tube assemblies 410 is removed from the refrigerant entering the second group of heat exchange tube assemblies 420, the effect of separating the liquid refrigerant in time is achieved, the refrigerants entering the second group of heat exchange tube assemblies 420 are all gaseous refrigerants, and the heat exchange efficiency is high; after the refrigerant is condensed by the second heat exchange tube assembly 420, a part of liquid refrigerant is generated, and after the part of liquid refrigerant reaches the second gas-liquid separating plate 300, the part of liquid refrigerant is separated from the gas refrigerant, so that the refrigerant circulates until the fifth heat exchange tube assembly.

It can be seen from above that, gas-liquid separation board 300 can play the effect of separation gaseous state refrigerant and liquid refrigerant, can play simultaneously and block gaseous state refrigerant and send into the effect of next group of heat exchange tube assembly, and the structure is very simple ingenious, makes things convenient for manufacturing, and job stabilization is reliable, low cost.

In the heat exchange process, the refrigerant of the anterior segment of every group heat exchange tube assembly is gaseous refrigerant basically, be high temperature gaseous refrigerant with the contact of heat exchange tube assembly inner wall, the heat exchange efficiency is high, liquid refrigerant begins to appear in the second half, liquid refrigerant can occupy the inner wall of a part of heat exchange tube assembly, can reduce partial heat exchange efficiency, in time separate away this part of liquid refrigerant through gas-liquid separation board 300 in connecting pipe 100, avoid liquid refrigerant to occupy more and more heat exchange tube assembly's inner wall, and then improve the holistic heat exchange efficiency of condenser. Meanwhile, the flow speed difference, the pressure difference and the friction resistance of the gaseous refrigerant and the liquid refrigerant in the heat exchange tube assembly can be reduced, and the exhaust and suction pulsation noise is further improved.

It should be noted that the number of the heat exchange tube assemblies and the number of the connection tubes 100 are not limited to the above embodiments, and the number of the heat exchange tube assemblies may be adjusted according to actual requirements. When the amount of the refrigerant is larger, more heat exchange tube assemblies and connecting tubes 100 can be configured; when the amount of the refrigerant is small, the number of the heat exchange pipe assemblies and the connection pipes 100 may be reduced.

As shown in fig. 1, in some embodiments, when the amount of the refrigerant is small, two sets of heat exchange tube assemblies and one connection tube 100 may be adopted, after the refrigerant enters from the first set of heat exchange tube assemblies 410 and exchanges heat, the generated liquid refrigerant flows to the gas-liquid separation plate 300 under the action of gravity, and a liquid film is formed at the liquid separation hole 310 to prevent the gaseous refrigerant from entering the liquid separation hole 310, and under the action of the liquid film, the gaseous refrigerant enters the second set of heat exchange tube assemblies 420, and the liquid refrigerant discharged from the liquid separation hole 310 may be conveyed to the refrigerant outlet 220 of the second set of heat exchange tube assemblies 420 through a pipeline to be merged.

It should be noted that, the above-mentioned embodiment can be connected in series or in parallel with other heat exchange tube assemblies as a whole base module, and it is also within the protection scope of the present invention.

As shown in fig. 2, specifically, in some embodiments of the present invention, the heat exchange tube assemblies are connected in series, and all the heat exchange tube assemblies are arranged in an up-down arrangement manner, and the refrigerant inlet 210 is located on the uppermost heat exchange tube assembly, so that there is a process of falling in the connection tube 100 for both the gaseous refrigerant and the liquid refrigerant, and during the falling process, the liquid refrigerant and the gaseous refrigerant have different resistances when falling, so that the liquid refrigerant and the gaseous refrigerant are separated more thoroughly; in addition, the gravity of the liquid refrigerant can be fully utilized in the falling process, the speed of the liquid refrigerant is increased, the liquid refrigerant can quickly reach the gas-liquid separation plate 300 and quickly pass through the liquid separating holes 310 of the gas-liquid separation plate 300, and the accumulation of the liquid refrigerant on the gas-liquid separation plate 300 is reduced.

Specifically, as shown in fig. 2, the heat exchange tube assemblies may be stacked on top of each other, so as to reduce the area of the heat exchange tube assemblies in the horizontal direction, and further reduce the area of the condenser in the horizontal direction.

Based on the above embodiments, when there are more than two connecting pipes 100 located on the same side, the connecting pipes 100 located on the same side are communicated with each other, so that the liquid refrigerants can converge in the connecting pipes 100, and the flow path stroke of the liquid refrigerants can be reduced.

Particularly, as shown in fig. 2, the heat exchange tube assemblies are consistent in length, the two ends of different heat exchange tube assemblies are aligned, the different connecting tubes 100 positioned on the same side form a straight tube structure in a head-to-tail series connection mode, and no additional pipeline is needed to connect the adjacent connecting tubes 100, so that pipelines can be effectively saved and the pipeline arrangement can be optimized. The straight tubular structure can also make the liquid refrigerant flow more smoothly downwards, and accelerate the circulation of the liquid refrigerant.

In the above embodiment, the two ends of the heat exchange tube assembly are respectively provided as the first mother tube 560 and the second mother tube 570, the first mother tube 560 adopts an integrated mechanism, the second mother tube 570 adopts an integrated structure, the gas-liquid separation plate 300 is arranged in the second mother tube 570, the second mother tube 570 is divided into at least two sections by the gas-liquid separation plate 300, and each section above the gas-liquid separation plate 300 is a connection tube 100. The connecting pipe 100 with the above structure is simple in structure, small in occupied volume and convenient to manufacture.

A baffle is arranged in the first main pipe 560 to divide the first main pipe 560 into an upper section and a lower section, no hole is arranged on the baffle, a refrigerant inlet is arranged at the upper section of the first main pipe 560, and the upper section of the first main pipe 560 is communicated with the first heat exchange pipe assembly; a gas-liquid separation plate is disposed at a lower portion of the first mother pipe 560, the lower portion of the first mother pipe 560 is divided into at least two sections by the gas-liquid separation plate 300, one connection pipe 100 is disposed at each section above the gas-liquid separation plate 300, and a refrigerant outlet is disposed at a lower end of the first mother pipe 560. After the refrigerant enters the first main pipe 560 from the refrigerant inlet, the refrigerant is not condensed and does not contain liquid refrigerant, so the baffle 550 is arranged to prevent the refrigerant from directly entering the connecting pipe below the first main pipe 560, and the refrigerant enters the first heat exchange tube assembly 410. The shape of the baffle 550 is not limited, and the baffle 550 may be shaped to fit the cross-section of the interior of the first main pipe 560, so that the first main pipe 560 can be divided into upper and lower sections.

As the refrigerant continuously flows forward in the heat exchange tube assembly, the gaseous refrigerant is gradually condensed into the liquid refrigerant, and as the liquid refrigerant is continuously separated by the gas-liquid separation plate 300, the gaseous refrigerant in the heat exchange tube assembly is continuously reduced, and if the circulation cross section in the heat exchange tube assembly is still unchanged, the flow velocity of the gaseous refrigerant is gradually reduced; to this end, as shown in fig. 2, in some embodiments of the present invention, the flow cross section of the condenser is gradually reduced along the flow direction of the gaseous refrigerant. The change speed of the flowing cross section of the condenser is selected according to the condensing speed of the gaseous refrigerant, so that the flowing speeds of the gaseous refrigerant in different heat exchange tube assemblies are approximately kept consistent, the integral operation is stable, and the noise generated by the flowing of the gaseous refrigerant is reduced.

Specifically, as shown in fig. 2, the number of heat exchange tube assemblies is six, the first set of heat exchange tube assemblies 410 includes five microchannel tubes 470 arranged in parallel, the second set of heat exchange tube assemblies 420 includes four microchannel tubes 470 arranged in parallel, the third set of heat exchange tube assemblies 430 includes three microchannel tubes 470 arranged in parallel, the fourth set of heat exchange tube assemblies 440 includes three microchannel tubes 470 arranged in parallel, the fifth set of heat exchange tube assemblies 450 includes three microchannel tubes 470 arranged in parallel, and the sixth set of heat exchange tube assemblies 460 includes two microchannel tubes 470 arranged in parallel, each microchannel tube 470 having the same flow cross-section. The gaseous refrigerant sequentially flows through the first group of heat exchange tube assemblies 410, the second group of heat exchange tube assemblies 420, the third group of heat exchange tube assemblies 430, the fourth group of heat exchange tube assemblies 440, the fifth group of heat exchange tube assemblies 450 and the sixth group of heat exchange tube assemblies 460, and therefore, in the flowing process of the gaseous refrigerant, the flowing cross section of the condenser is gradually reduced so as to be matched with the gradually reduced gaseous refrigerant.

Wherein, the circulation cross section of microchannel pipe 470 is less, adopts the mode of adjusting the circulation cross section of heat exchange tube subassembly through the quantity of microchannel pipe 470 in adjusting the heat exchange tube subassembly, can reach comparatively more meticulous regulation.

It should be noted that the manner in which the flow cross-sections of the heat exchange tube assemblies vary is not limited to the above-described embodiment, and for example, the number of microchannel tubes 470 between adjacent heat exchange tube assemblies may differ by two or more.

It should be noted that the microchannel tube 470 in the above embodiments refers to a heat exchange tube with a channel equivalent diameter of 10um-1000 um.

Specifically, as shown in fig. 3, the liquid separation holes 310 are circular through holes, seven liquid separation holes 310 are provided in each gas-liquid separation plate 300, one of the liquid separation holes 310 is located at the center of the gas-liquid separation plate 300, the remaining six liquid separation holes 310 are uniformly distributed around the liquid separation hole 310, the circular through holes are more favorable for forming a liquid film, and the diameter of the circular through holes is not greater than 3mm, so as to form a stable liquid film.

It should be noted that the shape of the dispensing hole 310 is not limited to a circular through hole, and an elliptical through hole or the like may be provided as needed. The number of the liquid separation holes 310 may be set according to the flow speed requirement of the liquid refrigerant.

The utility model discloses an in some embodiments, under the limited, great condition of horizontal space of some high space, can be the structure of tiled with the heat exchange tube subassembly setting, a plurality of heat exchangers lie in same horizontal plane and concatenate the setting promptly, are the plane and spread out, borrow this, can work at the condition that occupies less high space.

A condenser according to an embodiment of the present invention is described in detail below in a specific embodiment with reference to fig. 1 to 3. It is to be understood that the following description is illustrative only and is not intended as a specific limitation on the invention.

The condenser comprises a first mother pipe 560, a second mother pipe 570 and six groups of heat exchange pipe assemblies, wherein the six groups of heat exchange pipe assemblies comprise a first group of heat exchange pipe assemblies 410, a second group of heat exchange pipe assemblies 420, a third group of heat exchange pipe assemblies 430, a fourth group of heat exchange pipe assemblies 440, a fifth group of heat exchange pipe assemblies 450 and a sixth group of heat exchange pipe assemblies 460, a baffle 550 and two gas-liquid separation plates 300 are arranged in the first mother pipe 560, so that the first mother pipe 560 is divided into four sections which are sequentially called as a left section 510, a left section 520, a left section 530 and a left section 540 from top to bottom, wherein the left section 510 and the left section 520 are divided by the baffle 550 and are not communicated with each other, the gas-liquid separation plates 300 are arranged between the left section 520 and the left section 530, and the gas-liquid separation plates 300 are arranged between the left section 530 and the left section 540; two gas-liquid separation plates 300 are disposed inside the second mother pipe 570, whereby the second mother pipe 570 is divided into three sections, which are referred to as a right section 610, a right section 620, and a right section 630. The right section 610, the left section 520, the right section 620 and the left section 530 are the connecting pipe 100, the left section 510 mainly functions as a flow dividing pipe and is a section of collecting pipe, the right section 630 functions as a flow converging and flow dividing pipe and is another section of collecting pipe, and the left section 540 functions as a flow converging pipe and is another section of collecting pipe.

The left end of the first group of heat exchange tube assemblies 410 is communicated with the left section 510, and the right end is communicated with the right section 610; the left end of the second group of heat exchange tube assemblies 420 is communicated with the left second section 520, and the right end is communicated with the right section 610; the left end of the third group of heat exchange tube assembly 430 is communicated with the left second section 520, and the right end is communicated with the right second section 620; the left end of the fourth group of heat exchange tube assemblies 440 is communicated with the left section 530, and the right end is communicated with the right section 620; the left end of the fifth group of heat exchange tube assembly 450 is communicated with the left section 530, and the right end is communicated with the right section 630; the left end of the sixth group of heat exchange tube assembly 460 is communicated with the left four section 540, the right end is communicated with the right three section 630, and the refrigerant inlet 210 can be arranged at the left section 510; the refrigerant outlet 220 is disposed at the left four stage 540.

The first set of heat exchange tube assemblies 410 includes five microchannel tubes 470 arranged in parallel, the second set of heat exchange tube assemblies 420 includes four microchannel tubes 470 arranged in parallel, the third set of heat exchange tube assemblies 430 includes three microchannel tubes 470 arranged in parallel, the fourth set of heat exchange tube assemblies 440 includes three microchannel tubes 470 arranged in parallel, the fifth set of heat exchange tube assemblies 450 includes three microchannel tubes 470 arranged in parallel, and the sixth set of heat exchange tube assemblies 460 includes two microchannel tubes 470 arranged in parallel.

After the refrigerant enters from the refrigerant inlet 210, the refrigerant is divided into five microchannel tubes 470 through the left section 510, after heat exchange is performed through the microchannel tubes 470, part of the gaseous refrigerant is changed into liquid refrigerant, the liquid refrigerant enters the right section 610 and then falls to the gas-liquid separation plate 300 under the action of gravity, the liquid refrigerant enters the right section 620 after passing through the liquid separation hole 310, then enters the bottom of the right section 630, and then enters the microchannel tubes 470 of the sixth group of heat exchange tube assembly 460; the gas refrigerant in the right section 610 enters the four microchannel tubes 470 of the second group of heat exchange tube assemblies 420 under the blockage of the gas-liquid separation plate 300, the liquid refrigerant generated by condensation of the second group of heat exchange tube assemblies 420 enters the left second section 520, then falls onto the gas-liquid separation plate 300 in the left second section 520, and the liquid refrigerant enters the left third section 530 after passing through the separation holes in the gas-liquid separation plate 300, then enters the left fourth section 540, and finally is discharged from the refrigerant outlet 220; the gaseous refrigerant in the left section 520 enters the three microchannel tubes 470 of the third group of heat exchange tube assembly 430 under the action of the gas-liquid separation plate 300, the liquid refrigerant generated by condensation of the third group of heat exchange tube assembly 430 enters the right section 620, the liquid refrigerant enters the right section 620 and then falls down to the gas-liquid separation plate 300 under the action of gravity, and the liquid refrigerant enters the bottom of the right section 630 after passing through the liquid passing hole 310 and finally enters the microchannel tubes 470 of the sixth group of heat exchange tube assembly 460; the gas refrigerant in the right two-section 620 enters the three microchannel tubes 470 of the fourth group of heat exchange tube assemblies 440 under the action of the gas-liquid separation plate 300, the liquid refrigerant generated by condensation of the fourth group of heat exchange tube assemblies 440 enters the left three-section 530, then falls onto the gas-liquid separation plate 300 in the left three-section 530, passes through the separation holes in the gas-liquid separation plate 300, enters the left four-section 540, and is finally discharged from the refrigerant outlet 220; the gaseous refrigerant in the left section 530 enters the three microchannel tubes 470 of the fifth heat exchange tube assembly for cooling under the action of the gas-liquid separation plate 300, then enters the right section 630 for confluence, enters the two microchannel tubes 470 of the sixth heat exchange tube assembly after confluence, finally enters the left section 540 for confluence, and is discharged from the refrigerant outlet 220.

The utility model also provides a refrigeration plant, including compressor, evaporimeter, condenser, compressor, evaporimeter and condenser concatenate and form the refrigeration circuit, the condenser adopts the technical scheme of above-mentioned embodiment. In the condenser of the above embodiment, the liquid refrigerant generated by the refrigerant in the cooling process is separated in time by the gas-liquid separation plate 300, and the gas-liquid separation plate 300 can not only separate the liquid refrigerant from the gaseous refrigerant, but also block the gaseous refrigerant and send the gaseous refrigerant into the next group of heat exchange tube assemblies, and the condenser has the advantages of very simple and ingenious structure, stable and reliable work and low cost. Therefore, under the condition of the same condensation effect, the condenser in the embodiment can be smaller in size, lower in cost and more stable in work, so that the refrigeration equipment is smaller in size, lower in cost and more stable in work.

Claims (10)

1. A condenser, comprising:

at least two sets of heat exchange tube assemblies;

the connecting pipe is provided with a first interface, a second interface and a third interface, the first interface and the second interface are respectively connected with the two groups of heat exchange pipe assemblies, and the third interface is lower than the first interface and the second interface;

and the gas-liquid separation plate is arranged on the connecting pipe and used for sealing the third interface, and liquid separation holes are formed in the gas-liquid separation plate and can be used for forming liquid films by utilizing liquid refrigerants.

2. The condenser as claimed in claim 1, wherein two sets of said heat exchange tube assemblies connected to said connection tube are arranged in an up-down stacked arrangement.

3. The condenser as claimed in claim 2, wherein at least two connecting pipes are provided on the same side, and the connecting pipes on the same side are communicated with each other.

4. A condenser as claimed in claim 3, wherein the heat exchange tube assemblies are of uniform length, the two ends of different heat exchange tube assemblies are aligned, and different connecting tubes on the same side are connected in series to form a straight tubular structure.

5. The condenser as claimed in claim 4, further comprising a first mother tube, wherein a baffle is disposed in the first mother tube to divide the first mother tube into an upper section and a lower section, the upper section of the first mother tube is provided with a refrigerant inlet, and the upper section of the first mother tube is communicated with the heat exchange tube assembly located at the highest position.

6. A condenser as claimed in claim 1, characterized in that the flow cross-section of the condenser decreases in the direction of flow of the gaseous cooling medium.

7. The condenser as claimed in claim 6, wherein each set of said heat exchange tube assemblies includes at least one microchannel tube, the number of said microchannel tubes of said condenser decreasing in a direction of flow of the gaseous refrigerant.

8. The condenser of claim 1, wherein the liquid separation holes are circular through holes, and the diameter of the liquid separation holes is not more than 3mm.

9. The condenser as claimed in claim 1, wherein the two sets of heat exchange tube assemblies connected to the connection tube are arranged in a flat manner.

10. A refrigeration apparatus comprising a condenser as claimed in any one of claims 1 to 9.

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