Heat exchangers, integrated heat exchangers, and chillers

Abstract

The present invention discloses a heat exchange device, an integrated heat exchanger, and a chiller, and relates to the field of air conditioning technology. The heat exchange device includes: a shell with a refrigerant inlet and a refrigerant outlet; a partition plate for dividing the shell into a gas-liquid separation zone and a heat exchange zone, the refrigerant inlet is located in the gas-liquid separation zone, the gas-liquid separation zone and the heat exchange zone are both connected to the refrigerant outlet, and the partition plate is provided with a notch that allows the liquid refrigerant in the gas-liquid separation zone to enter the heat exchange zone; a heat exchange tube that passes through the heat exchange zone and can exchange heat with the refrigerant in the heat exchange zone; and an anti-collision component that is provided in the gas-liquid separation zone and is used to reduce the flow rate of the refrigerant at the refrigerant inlet so that the refrigerant flows into the heat exchange zone at a uniform speed. The purpose is to improve the heat transfer coefficient of the evaporator, improve the film effect of the outer wall of the heat exchange tube, and reduce the hidden dangers of liquid inhalation in the compressor.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning, and in particular to a heat exchange device, an integrated heat exchanger, and a chiller. Background Art

[0002] In addition to the four main components of the refrigeration system, namely the compressor, condenser, throttling device and evaporator, the refrigeration system also requires auxiliary components such as oil separators, flashers, gas-liquid separators to improve the performance of the unit, and at the same time, it is equipped with pipelines and electronic control equipment to ensure the reliable operation of the unit.

[0003] In centrifugal chillers, a two-stage compression, two-stage throttling, and incomplete cooling refrigeration cycle is often used. That is, the high-temperature and high-pressure refrigerant coming out of the condenser passes through the first-stage throttling orifice plate into the flash evaporator to achieve gas-liquid separation. The gas is replenished into the compressor, and the liquid passes through the second-stage throttling orifice plate into the evaporator.

[0004] Centrifugal chillers utilize a two-stage compression, two-stage throttling, and intermediate incomplete cooling refrigeration cycle. Compared to a single-stage compression refrigeration cycle, this improves system energy efficiency and reduces compressor exhaust temperature. However, this also increases the number of throttling orifices, flashers, and connecting pipes. These components are typically installed in separate, circular cylinders. This not only makes the unit heavier and occupies a larger space, increasing manufacturing costs, but also increases the risk of connecting pipe vibration and refrigerant leakage.

[0005] Flooded or falling-film evaporators are commonly used in large-capacity water-cooled units. Falling-film evaporators are increasingly popular due to their low refrigerant charge and high heat exchange efficiency. In a falling-film evaporator, the refrigerant is dispersed by a liquid distributor and drips from top to bottom onto the outer surface of the heat exchange tubes, exchanging heat with the refrigerant inside the tubes. The liquid distribution efficiency of the liquid distributor is a key factor influencing the heat transfer performance of a falling-film evaporator. Uneven film distribution on the heat exchange tube surface can easily lead to dry spots, reducing the heat transfer coefficient of the heat exchanger.

[0006] After throttling, the refrigerant enters the evaporator as a two-phase gas-liquid system, with a high gas volume flow rate. If a uniform liquid film is applied to the two-phase refrigerant, the high flow rate of the mixed refrigerant within the distributor will affect the liquid separation effect. Furthermore, the high refrigerant flow rate at the distributor outlet will impact the outer wall of the heat exchange tubes, causing refrigerant splashing. This not only affects the film coating effect on the outer wall of the heat exchange tubes, reduces the heat transfer coefficient, and increases the risk of liquid carryover in the compressor suction.

[0007] In response to the above technical problems, how to improve the heat transfer coefficient of the evaporator, improve the film effect of the outer wall of the heat exchange tube, and reduce the hidden dangers of liquid in the compressor suction have become technical problems that need to be solved urgently. Summary of the Invention

[0008] The main purpose of the present invention is to provide a heat exchange device, an integrated heat exchanger, and a chiller, aiming to improve the heat transfer coefficient of the evaporator, improve the film effect of the outer wall of the heat exchange tube, and reduce the hidden danger of liquid in the compressor suction.

[0009] In order to achieve the above object, the present invention provides a heat exchange device, comprising:

[0010] a housing having a refrigerant inlet and a refrigerant outlet;

[0011] a partition plate for dividing the shell into a gas-liquid separation zone and a heat exchange zone, the refrigerant inlet being located in the gas-liquid separation zone, the gas-liquid separation zone and the heat exchange zone both being in communication with the refrigerant outlet, and a notch being provided on the partition plate for allowing the liquid refrigerant in the gas-liquid separation zone to enter the heat exchange zone;

[0012] a heat exchange tube, which passes through the heat exchange zone and can exchange heat with the refrigerant in the heat exchange zone; and

[0013] The anti-collision component is arranged in the gas-liquid separation area and is used to reduce the flow rate of the refrigerant at the refrigerant inlet so that the refrigerant flows into the heat exchange area at a uniform speed.

[0014] In one embodiment of the present application, the anti-collision component includes:

[0015] At least one plate body, the plate body cooperates with the side wall of the gas-liquid separation zone to form a deceleration chamber, the refrigerant inlet is located in the deceleration chamber, and the plate body is provided with a flow-equalizing hole for allowing the decelerated refrigerant to flow into the gas-liquid separation zone.

[0016] In one embodiment of the present application, an impact zone facing the refrigerant inlet is provided on the plate, and the flow balancing holes are provided on both sides of the impact zone.

[0017] In one embodiment of the present application, the diameter of the flow balancing holes increases sequentially along the direction from the impact zone to the end of the plate body.

[0018] In one embodiment of the present application, the anti-collision component further includes:

[0019] The anti-collision plate is arranged at the outlet of the flow-balancing hole and is used to reduce the flow rate of the refrigerant flowing out of the flow-balancing hole.

[0020] In one embodiment of the present application, a first gas-liquid filter is provided on a side of the anti-impact plate away from the plate body to separate the refrigerant gas and liquid.

[0021] In one embodiment of the present application, the heat exchange device further includes a filter component disposed between the output end of the anti-impact component and the refrigerant outlet for filtering the refrigerant.

[0022] In one embodiment of the present application, the filter assembly includes:

[0023] The second gas-liquid filter is arranged between the refrigerant outlet and the outlet of the gas-liquid separation zone, and is used for filtering the refrigerant.

[0024] In one embodiment of the present application, the filter assembly further includes:

[0025] At least one baffle is connected to the channel connecting the gas-liquid separation zone and the refrigerant outlet, the height of the free side of the baffle is greater than the height of the fixed side of the baffle, and the baffle is provided with a liquid equalization hole for allowing the liquid refrigerant to fall.

[0026] In one embodiment of the present application, a liquid equalizing plate is provided in the heat exchange zone to evenly drop the liquid refrigerant flowing into the gas-liquid separation zone onto the heat exchange tube, and an overflow channel is provided on one side of the liquid equalizing plate and the heat exchange tube to transfer the gaseous refrigerant to the refrigerant outlet.

[0027] In one embodiment of the present application, a liquid baffle is provided in the overflow channel to block the overflow channel, and the liquid baffle is provided with air holes for the vaporized refrigerant to flow out, and the edge of the air hole is provided with a protrusion to limit the liquid refrigerant on the upper surface of the liquid baffle from falling.

[0028] In one embodiment of the present application, a third gas-liquid filter is further provided in the overflow channel.

[0029] The present application also discloses an integrated heat exchanger, comprising a flasher, a condenser, and a heat exchange device as described above, wherein the flasher, the condenser, and the heat exchange device are integrally formed.

[0030] The present application also discloses a chiller comprising the integrated heat exchanger as described above.

[0031] By adopting the above technical solution, the shell is divided into two areas by a partition plate, namely the gas-liquid separation area and the heat exchange area. The gas-liquid separation area and the heat exchange area are connected to each other. An anti-impact component is set in the gas-liquid separation area to slow down the refrigerant, reduce the rapid impact of the refrigerant, and keep a low flow rate before the refrigerant enters the heat exchange area, so that the refrigerant has a higher film effect on the heat exchange tube, improves the heat exchange efficiency of the refrigerant, and avoids the hidden danger of liquid inhalation by the compressor. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The present invention will be described in detail below with reference to specific embodiments and accompanying drawings, wherein:

[0033] Figure 1 This is a schematic structural diagram of a heat exchange device according to the first embodiment of the present invention.

[0034] Figure 2 This is a side sectional view of a heat exchange device according to a first embodiment of the present invention.

[0035] Figure 3 Schematic diagram of the structure of the integrated heat exchanger. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the following specific embodiments are only used to explain the present invention and do not constitute a limitation of the present invention.

[0037] like Figures 1 to 3 As shown, in order to achieve the above-mentioned purpose, the present invention proposes a heat exchange device 10, comprising:

[0038] The housing 15 has a refrigerant inlet 50 and a refrigerant outlet 60;

[0039] The partition plate 13 is used to separate the shell 15 into a gas-liquid separation zone 11 and a heat exchange zone. The refrigerant inlet 50 is located in the gas-liquid separation zone 11. The gas-liquid separation zone 11 and the heat exchange zone are both connected to the refrigerant outlet 60. The partition plate 13 is provided with a notch to allow the liquid refrigerant in the gas-liquid separation zone 11 to enter the heat exchange zone.

[0040] a heat exchange tube 14, which passes through the heat exchange zone and can exchange heat with the refrigerant in the heat exchange zone; and

[0041] The anti-collision component is provided in the gas-liquid separation zone 11 and is used to reduce the flow rate of the refrigerant at the refrigerant inlet 50 so that the refrigerant flows into the heat exchange zone at a uniform speed.

[0042] Specifically, a heat exchange device 10 includes a shell 15, a partition plate 13, a heat exchange tube 14, and an anti-impact component.

[0043] The housing 15 is made of a metal material, such as an aluminum alloy, alloy steel, etc. The housing 15 made of a metal material has the advantages of strong support capacity, wear resistance, good heat exchange effect, etc. The housing 15 is provided with a refrigerant inlet 50 and a refrigerant outlet 60.

[0044] The refrigerant inlet 50 is set on the side wall of the shell 15. Since the heat exchange device 10 needs to absorb heat from the heat exchange tube 14, the refrigerant will vaporize after absorbing the heat. Therefore, the refrigerant outlet is set at the top of the shell 15 to facilitate the collection and discharge of the gaseous refrigerant.

[0045] The partition plate 13 is made of metal material. The partition plate 13 made of metal material has the advantages of strong supporting capacity and wear resistance. The partition plate 13 and the shell 15 are integrally formed. The partition plate 13 and the shell 15 are connected in an integrally formed manner, which can improve the connection strength between the partition plate 13 and the shell 15 and ensure the stability of the partition plate 13 during operation. Of course, according to design requirements, the partition plate 13 and the shell 15 can also be connected in a detachable manner. The detachable connection facilitates the installation and removal of the partition plate 13 and facilitates subsequent maintenance. It can be imagined that the connection between the partition plate 13 and the shell 15 is a sealed connection.

[0046] The partition plate 13 divides the shell 15 into a gas-liquid separation zone 11 and a heat exchange zone. In order to utilize gravity to enable the liquid refrigerant to produce a film effect on the heat exchange tube 14, the horizontal height of the gas pressure separation zone is greater than the horizontal height of the heat exchange zone, and is arranged in an upper and lower stacking manner.

[0047] The refrigerant inlet 50 is provided on the side wall of the gas-liquid separation zone 11. Both the gas-liquid separation zone 11 and the heat exchange zone are provided with exhaust passages that direct the vaporized refrigerant to the refrigerant outlet 60. A notch is provided in the partition plate 13, allowing the gas-liquid separation zone 11 and the heat exchange zone to communicate with each other. Liquid refrigerant in the gas-liquid separation zone 11 can enter the heat exchange zone through the notch and move from top to bottom under the action of gravity, thereby forming a film on the heat exchange tubes 14 and achieving optimal heat exchange.

[0048] Heat exchange tubes 14 are made of metal materials, such as aluminum alloys or alloy steels. Metallic heat exchange tubes 14 offer advantages such as strong support, wear resistance, and excellent heat exchange performance. They extend through the heat exchange zone and allow cooling water to flow through them. After passing through the heat exchange zone, the cooling water exchanges heat with the refrigerant, reducing the heat content of the cooling water and increasing the heat content of the refrigerant, thereby achieving a refrigeration cycle.

[0049] The anti-collision component is arranged in the gas-liquid separation area 11. Since the flow rate of the refrigerant is relatively high when it enters the gas-liquid separation area 11, the refrigerant with a higher flow rate will collide with the inner wall of the gas-liquid separation area 11, causing the refrigerant to splash, which is not conducive to the liquid refrigerant entering the heat exchange area through the gap to realize film formation on the heat pipe.

[0050] The anti-collision component is arranged at the refrigerant inlet 50 to reduce the flow rate of the refrigerant, thereby facilitating the liquid refrigerant to slowly flow into the heat exchange area from the gap on the partition plate 13, achieving a good film effect on the heat exchange tube 14, and improving the heat exchange efficiency of the refrigerant.

[0051] The anti-collision component can be a limiting plate or a flow limiting hole.

[0052] When the anti-collision component is a limit plate, the limit plate is set at the position of the refrigerant inlet 50 and is directly opposite to the refrigerant inlet 50. At this time, when the refrigerant enters the gas-liquid separation area 11, it will first impact the limit plate, and the refrigerant will be decelerated. Since the gas-liquid separation area 11 is a large space, the refrigerant can be decelerated, thereby facilitating the liquid refrigerant to enter the heat exchange area.

[0053] When the anti-collision component is a flow limiting hole, the liquid refrigerant enters the flow limiting hole and reduces the flow rate of the refrigerant through the flow limiting hole. At the same time, since the gas-liquid separation area 11 is a larger space, the refrigerant can have a longer deceleration time, thereby facilitating the liquid refrigerant to enter the heat exchange area.

[0054] By adopting the above technical solution, the shell 15 is divided into two areas by the partition plate 13, and the two areas are the gas-liquid separation area 11 and the heat exchange area. The gas-liquid separation area 11 and the heat exchange area are connected to each other. An anti-impact component is set in the gas-liquid separation area 11 to decelerate the refrigerant, reduce the rapid impact of the refrigerant, and keep a low flow rate before the refrigerant enters the heat exchange area, so that the refrigerant has a higher film effect on the heat exchange tube 14, thereby improving the heat exchange efficiency of the refrigerant and avoiding the hidden danger of liquid inhalation by the compressor.

[0055] In one embodiment of the present application, the anti-collision component includes:

[0056] At least one plate 111 cooperates with the side wall of the gas-liquid separation zone 11 to form a deceleration chamber, the refrigerant inlet 50 is located in the deceleration chamber, and the plate 111 is provided with a flow-equalizing hole for allowing the decelerated refrigerant to flow into the gas-liquid separation zone 11.

[0057] Specifically, the anti-collision component includes at least one plate body 111, and the plate body 111 is made of metal material, such as aluminum alloy material, alloy steel material, etc. The plate body 111 made of metal material has the advantages of strong supporting ability and wear resistance.

[0058] The plate body 111 and the side wall of the gas-liquid separation area 11 cooperate with each other to form a deceleration chamber. The inlet of the refrigerant is located in the deceleration chamber. The plate body 111 is provided with a flow balancing hole. After the refrigerant enters the deceleration chamber, it first hits the inner wall of the deceleration chamber, and then flows out from the flow balancing hole located on the plate body 111, thereby reducing the flow rate of the refrigerant. The structure is simple and easy to implement.

[0059] When there is one plate body 111 , a right-angled triangular prism-shaped deceleration chamber is formed between the plate body 111 and the side wall of the gas-liquid separation zone 11 , and the flow balancing hole is provided on the plate body 111 .

[0060] When two plates 111 are provided, they comprise a first plate and a second plate. The second plate is perpendicular to the bottom wall of the gas-liquid separation zone 11. One side of the first plate is connected to the free end of the second plate, and the other side of the first plate is connected to the side wall of the gas-liquid separation zone 11, thereby forming a deceleration chamber. The angle between the first and second plates is between 90° and 180°, exclusive of this angle. Flow balancing holes are provided on the second plate.

[0061] In this application, the number of the plates 111 is two.

[0062] By adopting the above technical solution, the refrigerant is decelerated by the deceleration chamber formed by the plate body 111 and the gas-liquid separation zone 11, which has a simple structure and is easy to implement.

[0063] In one embodiment of the present application, an impact zone facing the refrigerant inlet 50 is provided on the plate 111 , and the flow balancing holes are provided on both sides of the impact zone.

[0064] Specifically, the position on the plate 111 facing the refrigerant inlet 50 is set as an impact zone. When the refrigerant enters the deceleration chamber from the refrigerant inlet 50, the impact zone is used to block the refrigerant and diffuse the refrigerant to both sides of the impact zone, thereby reducing the speed of the refrigerant. At the same time, equalizing holes are set on both sides of the impact zone. The refrigerant blocked by the impact zone from diffusing to both sides flows into the gas-liquid separation zone 11 through the equalizing holes. The structure is simple and easy to implement.

[0065] In one embodiment of the present application, the diameters of the flow balancing holes increase sequentially along a direction from the impact zone to the end of the plate body 111 .

[0066] Specifically, the aperture of the flow balancing hole increases successively from the impact zone to the end of the plate body 111. Since the flow rate of the refrigerant decreases as the distance from the impact zone increases, the aperture of the flow balancing hole away from the impact zone is increased. This can increase the output of the refrigerant without throttling the refrigerant. The structure is simple and easy to implement.

[0067] In one embodiment of the present application, the anti-collision component further includes:

[0068] The anti-collision plate 112 is provided at the outlet of the flow balancing hole and is used to reduce the flow rate of the refrigerant flowing out of the flow balancing hole.

[0069] Specifically, an anti-collision plate 112 is provided at the outlet of the equalizing flow hole. The anti-collision plate 112 is used to reduce the flow rate of the refrigerant flowing out of the equalizing flow hole. Through secondary impact, the flow rate of the refrigerant is further reduced, so that the speed of the refrigerant entering the heat exchange area from the gas-liquid separation area 11 is further reduced, thereby improving the film distribution effect of the refrigerant on the heat pipe. The structure is simple and easy to implement.

[0070] In one embodiment of the present application, a first gas-liquid filter 113 for separating the refrigerant gas and liquid is provided on a side of the anti-collision plate 112 away from the plate body 111 .

[0071] Specifically, a first gas-liquid filter 113 is provided on the side of the anti-collision plate 112 away from the plate body 111. When the gas-liquid two-phase refrigerant passes through the first gas-liquid filter 113, the gaseous refrigerant can pass through the first gas-liquid filter 113, and the liquid refrigerant remains on the first gas-liquid filter 113. With continuous accumulation, larger water droplets are formed and fall, thereby realizing the separation of gaseous refrigerant and liquid refrigerant, further reducing the risk of liquid inhalation by the compressor.

[0072] In one embodiment of the present application, the heat exchange device 10 further includes a filter component disposed between the output end of the anti-collision component and the refrigerant outlet 60 for filtering the refrigerant.

[0073] Specifically, the heat exchange device 10 further includes a filter component disposed between the output end of the anti-collision component and the refrigerant outlet 60 for filtering the refrigerant.

[0074] It is conceivable that the filter assembly is used to re-filter the refrigerant entering the refrigerant outlet 60, and the liquid refrigerant content in the refrigerant entering the refrigerant outlet 60 is further reduced by the filter assembly, thereby further reducing the risk of liquid inhalation by the compressor.

[0075] In one embodiment of the present application, the filter assembly includes:

[0076] The second gas-liquid filter 123 is disposed between the refrigerant outlet 60 and the outlet of the gas-liquid separation zone 11 and is used to filter the refrigerant.

[0077] Specifically, the filter assembly includes a second gas-liquid filter 123, which is arranged between the refrigerant outlet 60 and the outlet of the gas-liquid separation area 11. By filtering the refrigerant at the outlet of the gas-liquid separation area 11, the liquid refrigerant in the gas-liquid separation area 11 is prevented from entering the compressor, further reducing the risk of liquid inhalation by the compressor.

[0078] In one embodiment of the present application, the filter assembly further includes:

[0079] At least one baffle 121 is connected to the channel connecting the gas-liquid separation zone 11 and the refrigerant outlet 60. The height of the free side of the baffle 121 is greater than the height of the fixed side of the baffle 121. The baffle 121 is provided with a liquid equalization hole for allowing the liquid refrigerant to fall.

[0080] Specifically, the filter assembly also includes at least one baffle 121, which is connected to the channel connecting the gas-liquid separation area 11 and the refrigerant outlet 60. The height of the free side of the baffle 121 is greater than the height of the fixed side of the baffle 121, so that the liquid refrigerant can fall from the right side of the baffle 121 to the fixed side of the baffle 121 under the action of gravity. The baffle 121 is provided with a liquid equalization hole. The accumulated liquid refrigerant falls under the action of gravity through the liquid equalization hole, achieving gas-liquid separation and further reducing the risk of liquid inhalation by the compressor.

[0081] In one embodiment of the present application, a liquid balancing plate 18 is provided in the heat exchange zone to evenly drop the liquid refrigerant flowing into the gas-liquid separation zone 11 onto the heat exchange tube 14, and an overflow channel 174 is provided on one side of the liquid balancing plate 18 and the heat exchange tube 14 to transfer the gaseous refrigerant to the refrigerant outlet 60.

[0082] Specifically, the heat exchange zone is equipped with a liquid averaging plate 18 that evenly drips the liquid refrigerant flowing from the gas-liquid separation zone 11 onto the heat exchange tubes 14. An overflow channel 174 is provided on one side of the averaging plate and the heat exchange tubes 14. The output end of the overflow channel 174 is connected to the refrigerant outlet 60. By providing the overflow channel 174, when the refrigerant vaporizes, it can directly overflow through the overflow channel 174, thereby preventing the vaporized refrigerant from affecting the liquid refrigerant and further improving the stability of the liquid refrigerant film on the heat exchange tubes 14.

[0083] In one embodiment of the present application, a liquid baffle 173 is provided in the overflow channel 174 to block the overflow channel 174. The liquid baffle 173 is provided with an air hole for the vaporized refrigerant to flow out, and the edge of the air hole is provided with a protrusion 172 to limit the liquid refrigerant on the upper surface of the liquid baffle 173 from falling.

[0084] Specifically, a liquid baffle 173 is provided in the overflow channel 174, and an air hole is provided on the liquid baffle 173 to facilitate the outflow of the gaseous refrigerant. A protrusion 172 is provided on the edge of the air hole. The protrusion 172 is located on the upper surface of the liquid baffle 173. By providing the protrusion 172 on the upper surface, the liquid refrigerant on the upper surface of the liquid baffle 173 can be prevented from falling, thereby avoiding affecting the gaseous refrigerant.

[0085] In one embodiment of the present application, a third gas-liquid filter 171 is further provided in the overflow channel 174 .

[0086] Specifically, a third gas-liquid filter 171 is further provided in the overflow channel 174. By providing the gas-liquid filter, the refrigerant gas and liquid in the overflow channel 174 are separated, thereby further reducing the risk of liquid being sucked into the compressor.

[0087] The present application also discloses an integrated heat exchanger, including a flasher 20, a condenser 30, and the heat exchange device 10 as described above, wherein the flasher 20, the condenser 30 and the heat exchange device 10 are integrally formed.

[0088] The present application also discloses a chiller comprising the integrated heat exchanger as described above.

[0089] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention description and drawings under the inventive concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A heat exchange device, characterized in that: include: a housing having a refrigerant inlet and a refrigerant outlet; a partition plate for dividing the shell into a gas-liquid separation zone and a heat exchange zone, the refrigerant inlet being located in the gas-liquid separation zone, the gas-liquid separation zone and the heat exchange zone both being in communication with the refrigerant outlet, and a notch being provided on the partition plate for allowing the liquid refrigerant in the gas-liquid separation zone to enter the heat exchange zone; a heat exchange tube, passing through the heat exchange zone and capable of exchanging heat with the refrigerant in the heat exchange zone; as well as An anti-collision component is provided in the gas-liquid separation zone and is used to reduce the flow rate of the refrigerant at the refrigerant inlet so that the refrigerant flows into the heat exchange zone at a uniform speed; An overflow channel that can transfer gaseous refrigerant to the refrigerant outlet is provided on one side of the heat exchange tube. A liquid baffle is provided in the overflow channel to block the overflow channel. The liquid baffle is provided with air holes for the vaporized refrigerant to flow out. The edge of the air hole is provided with a protrusion to limit the drop of liquid refrigerant on the upper surface of the liquid baffle.

2. The heat exchange device according to claim 1, characterized in that: The anti-collision component includes: At least one plate body, the plate body cooperates with the side wall of the gas-liquid separation zone to form a deceleration chamber, the refrigerant inlet is located in the deceleration chamber, and the plate body is provided with a flow-equalizing hole for allowing the decelerated refrigerant to flow into the gas-liquid separation zone.

3. The heat exchange device according to claim 2, characterized in that: The plate body is provided with an impact zone facing the refrigerant inlet, and the flow equalizing holes are provided on both sides of the impact zone.

4. The heat exchange device according to claim 3, characterized in that: The apertures of the flow-balancing holes increase sequentially from the impact zone to the end of the plate body.

5. The heat exchange device according to claim 2, characterized in that: The anti-collision component also includes: The anti-collision plate is arranged at the outlet of the flow-balancing hole and is used to reduce the flow rate of the refrigerant flowing out of the flow-balancing hole.

6. The heat exchange device according to claim 5, characterized in that: A first gas-liquid filter is provided on a side of the anti-collision plate away from the plate body to separate the refrigerant gas and liquid.

7. The heat exchange device according to claim 1, characterized in that: The heat exchange device also includes a filter component arranged between the output end of the anti-impact component and the refrigerant outlet for filtering the refrigerant.

8. The heat exchange device according to claim 7, characterized in that: The filter assembly comprises: The second gas-liquid filter is arranged between the refrigerant outlet and the outlet of the gas-liquid separation zone, and is used for filtering the refrigerant.

9. The heat exchange device according to claim 7, characterized in that: The filter assembly further comprises: At least one baffle is connected to the channel connecting the gas-liquid separation zone and the refrigerant outlet, the height of the free side of the baffle is greater than the height of the fixed side of the baffle, and the baffle is provided with a liquid equalization hole for allowing the liquid refrigerant to fall.

10. The heat exchange device according to claim 9, characterized in that: The heat exchange zone is provided with a liquid balancing plate for evenly dropping the liquid refrigerant flowing into the gas-liquid separation zone onto the heat exchange tube. The liquid balancing plate and one side of the heat exchange tube are both provided with an overflow channel for transmitting the gaseous refrigerant to the refrigerant outlet.

11. The heat exchange device according to claim 1, wherein: A third gas-liquid filter is also provided in the overflow channel.

12. The integrated heat exchanger is characterized by: The invention comprises a flasher, a condenser, and a heat exchange device according to any one of claims 1 to 11, wherein the flasher, the condenser and the heat exchange device are integrally formed.

13. A chiller, characterized in that: Comprising the integrated heat exchanger as claimed in claim 12.

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