CN218722411U - Heat exchange device, integrated heat exchanger and water chilling unit - Google Patents
Heat exchange device, integrated heat exchanger and water chilling unit Download PDFInfo
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- CN218722411U CN218722411U CN202222956650.6U CN202222956650U CN218722411U CN 218722411 U CN218722411 U CN 218722411U CN 202222956650 U CN202222956650 U CN 202222956650U CN 218722411 U CN218722411 U CN 218722411U
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Abstract
The utility model discloses a heat transfer device, integration heat exchanger and cooling water set relates to air conditioner technical field. The heat exchange device comprises: a housing having a refrigerant inlet and a refrigerant outlet; the separation plate is used for separating the shell into a gas-liquid separation area and a heat exchange area, the refrigerant inlet is positioned in the gas-liquid separation area, the gas-liquid separation area and the heat exchange area are communicated with the refrigerant outlet, and the separation plate is provided with a notch which can enable liquid refrigerant in the gas-liquid separation area to enter the heat exchange area; the heat exchange tube penetrates through the heat exchange area and can exchange heat with a refrigerant in the heat exchange area; and the anti-impact assembly is arranged in the gas-liquid separation area and used for reducing the flow rate of a refrigerant at the refrigerant inlet so as to enable the refrigerant to flow into the heat exchange area at a constant speed. The heat exchange coefficient of the evaporator is improved, the film distribution effect of the outer wall surface of the heat exchange tube is improved, and the hidden danger of liquid carrying in the air suction of the compressor is reduced.
Description
Technical Field
The utility model relates to an air conditioning technology field, in particular to heat transfer device, integration heat exchanger and cooling water set.
Background
Besides four main components of a compressor, a condenser, a throttling device and an evaporator, the refrigerating system also needs auxiliary components such as an oil separator, a flash tank, a gas-liquid separator and the like to improve the performance of the unit, and meanwhile, pipelines and electric control equipment are matched to ensure the reliable operation of the unit.
In a centrifugal water chilling unit, a two-stage compression two-stage throttling and intermediate incomplete cooling refrigeration cycle is usually used, namely, a high-temperature and high-pressure refrigerant from a condenser enters a flash evaporator through a first-stage throttling orifice plate to realize gas-liquid separation, gas is supplied to a compressor, and liquid enters an evaporator through a second-stage throttling orifice plate.
Compared with single-stage compression refrigeration circulation, the centrifugal water chilling unit adopts two-stage compression two-stage throttling and incomplete intermediate cooling refrigeration circulation, so that the energy efficiency of the system is improved, the exhaust temperature of the compressor is reduced, and meanwhile, a throttling orifice plate, a flash evaporator and a connecting pipeline piece are also added. All parts are usually installed in a circular cylinder in a sub-part mode, so that on one hand, the whole machine is heavy, the occupied space is large, the manufacturing cost of the unit is increased, and on the other hand, the risks of vibration of a connecting pipeline and leakage of a refrigerant are increased.
Meanwhile, in a large-cooling-capacity water cooling unit, a flooded evaporator or a falling-film evaporator is generally adopted, and the falling-film evaporator is more and more widely applied due to the fact that the refrigerant filling amount is small and the heat exchange efficiency is high. In the falling film evaporator, the refrigerant is dripped to the outer surface of the heat exchange tube from top to bottom after being separated by the liquid distributor to exchange heat with the secondary refrigerant in the tube. The liquid distribution effect of the liquid distributor is a key influence factor of the strength of the heat transfer performance of the falling film evaporator, the film distribution on the surface of the heat exchange tube is uneven, dry spots are easy to generate, and the heat transfer coefficient of the heat exchanger is reduced.
The refrigerant enters the evaporator after being throttled to be in a gas-liquid two-phase state, and the gas volume flow is higher. If liquid equalization and film distribution are carried out on a gas-liquid two-phase refrigerant, the liquid distribution effect can be influenced by the fact that the flow velocity of a mixed refrigerant in a liquid distributor is high, meanwhile, the refrigerant at the outlet of the liquid distributor is high and impacts the outer wall surface of a heat exchange tube to cause splashing of the refrigerant, the film distribution effect of the outer wall surface of the heat exchange tube is influenced, the heat transfer coefficient is reduced, and the hidden danger of liquid entrainment caused by air suction of a compressor is increased.
Aiming at the technical problems, how to improve the heat exchange coefficient of the evaporator, improve the film distribution effect of the outer wall surface of the heat exchange tube and reduce the hidden trouble of the air suction and liquid carrying of the compressor becomes a technical problem to be solved urgently.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing heat transfer device, integration heat exchanger and cooling water set, aim at how to improve the heat transfer coefficient of evaporimeter, improve the cloth membrane effect of heat exchange tube outer wall, reduce the hidden danger of compressor suction band liquid.
In order to achieve the above object, the utility model provides a heat exchange device, include:
a housing having a refrigerant inlet and a refrigerant outlet;
the separation plate is used for separating the shell into a gas-liquid separation area and a heat exchange area, the refrigerant inlet is positioned in the gas-liquid separation area, the gas-liquid separation area and the heat exchange area are communicated with the refrigerant outlet, and the separation plate is provided with a notch which can enable liquid refrigerant in the gas-liquid separation area to enter the heat exchange area;
the heat exchange tube penetrates through the heat exchange area and can exchange heat with a refrigerant in the heat exchange area; and
and the anti-impact assembly is arranged in the gas-liquid separation area and is used for reducing the flow velocity of the refrigerant at the refrigerant inlet so as to ensure that the refrigerant flows into the heat exchange area at a constant speed.
In an embodiment of the application, the impingement assembly comprises:
the plate body is matched with the side wall of the gas-liquid separation area to form a speed reduction cavity, the refrigerant inlet is located in the speed reduction cavity, and the plate body is provided with a flow equalizing hole which enables the decelerated refrigerant to flow into the gas-liquid separation area.
In an embodiment of the present application, an impact area facing the refrigerant inlet is disposed on the plate body, and the flow equalizing holes are disposed on two sides of the impact area.
In one embodiment of the present application, the aperture of the flow equalizing hole increases in sequence along the direction from the impact area to the end of the plate body.
In an embodiment of the present application, the impingement assembly further comprises:
and the impingement plate is arranged at the outlet of the flow equalizing hole and used for reducing the flow rate of the refrigerant flowing out of the flow equalizing hole.
In an embodiment of the present application, a first gas-liquid filter screen for separating gas from liquid of a refrigerant is disposed on one side of the impingement plate away from the plate body.
In an embodiment of the application, heat transfer device is still including locating between scour protection subassembly output and the refrigerant export for carry out filterable filter assembly to the refrigerant.
In one embodiment of the present application, the filter assembly comprises:
and the second gas-liquid filter screen is arranged between the refrigerant outlet and the outlet of the gas-liquid separation area and is used for filtering the refrigerant.
In an embodiment of the present application, the filter assembly further comprises:
the baffle plate is connected in a channel communicated with the gas-liquid separation area and the refrigerant outlet, the height of the free side of the baffle plate is larger than that of the fixed side of the baffle plate, and the baffle plate is provided with a liquid equalizing hole capable of enabling the liquid refrigerant to fall.
In an embodiment of the application, a liquid homogenizing plate which uniformly drips the liquid refrigerant flowing into the gas-liquid separation region on the heat exchange tube is arranged in the heat exchange region, and overflow channels which can transmit the gaseous refrigerant to the refrigerant outlet are arranged on one side of the liquid homogenizing plate and one side of the heat exchange tube.
In an embodiment of the present application, a liquid baffle plate for blocking the overflow channel is disposed in the overflow channel, an air hole for flowing out vaporized refrigerant is disposed on the liquid baffle plate, and a protrusion for limiting the falling of liquid refrigerant on the upper surface of the liquid baffle plate is disposed at an edge of the air hole.
In an embodiment of the present application, a third gas-liquid filter screen is further disposed in the overflow channel.
The application also discloses an integrated heat exchanger, including flash tank, condenser and as above arbitrary one heat transfer device, flash tank, condenser and heat transfer device integrated into one piece.
The application also discloses a water chilling unit, which comprises the integrated heat exchanger.
Adopt above-mentioned technical scheme, separate into two regions through the division board with the casing, two regions are gas-liquid separation district and heat transfer district respectively, switch on each other between gas-liquid separation district and the heat transfer district, set up the scour protection subassembly in the gas-liquid separation district and realize the speed reduction to the refrigerant, reduce the quick impact of refrigerant, make the refrigerant keep lower velocity of flow between getting into the heat transfer district, thereby realize that the refrigerant has higher cloth membrane effect on the heat exchange tube, the heat exchange efficiency of refrigerant has been improved, the hidden danger of compressor suction area liquid has been avoided.
Drawings
The invention will be described in detail with reference to the following embodiments and the accompanying drawings, in which:
fig. 1 is a schematic structural diagram of a heat exchange device according to a first embodiment of the present invention.
Fig. 2 is a side sectional view of a heat exchange device according to a first embodiment of the present invention.
Fig. 3 is a schematic structural diagram of the integrated heat exchanger.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention is described in detail with reference to the accompanying drawings and embodiments. It should be understood that the following specific examples are only for illustrating the present invention and are not to be construed as limiting the present invention.
As shown in fig. 1 to 3, in order to achieve the above object, the present invention provides a heat exchange device 10, including:
a housing 15 having a refrigerant inlet 50 and a refrigerant outlet 60;
the partition plate 13 is used for dividing the shell 15 into a gas-liquid separation region 11 and a heat exchange region, the refrigerant inlet 50 is located in the gas-liquid separation region 11, the gas-liquid separation region 11 and the heat exchange region are both communicated with the refrigerant outlet 60, and the partition plate 13 is provided with a notch which can enable liquid refrigerants in the gas-liquid separation region 11 to enter the heat exchange region;
the heat exchange tube 14 penetrates through the heat exchange area and can exchange heat with a refrigerant in the heat exchange area; and
and the anti-impact assembly is arranged in the gas-liquid separation region 11 and used for reducing the flow rate of the refrigerant at the refrigerant inlet 50 so as to enable the refrigerant to flow into the heat exchange region at a constant speed.
Specifically, a heat transfer device 10 includes casing 15, division board 13, heat exchange tube 14, scour protection subassembly.
The housing 15 is made of a metal material, such as an aluminum alloy material, an alloy steel material, or the like. The shell 15 made of metal material has the advantages of strong supporting capability, wear resistance, good heat exchange effect and the like. The casing 15 is provided with a refrigerant inlet 50 and a refrigerant outlet 60.
The refrigerant inlet 50 is disposed on the sidewall of the casing 15, and since the heat exchanger 10 needs to absorb heat from the heat exchanging tube 14, the refrigerant is vaporized after absorbing heat, and thus the refrigerant outlet is disposed at the top of the casing 15, thereby facilitating the collection and discharge of the gaseous refrigerant.
The partition plate 13 is made of metal materials, and the partition plate 13 made of metal materials has the advantages of strong supporting capacity, wear resistance and the like. The partition plate 13 and the shell 15 are integrally formed, and the partition plate 13 and the shell 15 are connected in an integrally formed connection mode, so that the connection strength between the partition plate 13 and the shell 15 can be improved, and the working stability of the partition plate 13 is ensured. Certainly according to the needs of design, can also adopt the detachable mode to be connected between division board 13 and the casing 15, adopt the detachable mode to connect, the installation and the dismantlement of division board 13 of being convenient for, the maintenance in the later stage of being convenient for. It is conceivable that the connections between the partition plate 13 and the housing 15 are all sealed connections.
The shell 15 is divided into a gas-liquid separation zone 11 and a heat exchange zone by the partition plate 13, and in order to enable the liquid refrigerant to generate a film distribution effect on the heat exchange tube 14 by using gravity, the horizontal height of the gas-pressure separation zone is larger than that of the heat exchange zone, and the gas-pressure separation zone is arranged in a mode of being stacked up and down.
The refrigerant inlet 50 is arranged on the side wall of the gas-liquid separation area 11, and the gas-liquid separation area 11 and the heat exchange area are both provided with exhaust channels which can lead vaporized refrigerants out to the refrigerant outlet 60. The division plate 13 is provided with a notch, so that the gas-liquid separation area 11 and the heat exchange area are communicated with each other, and the liquid refrigerant in the gas-liquid separation area 11 can enter the heat exchange area through the notch and move from top to bottom under the action of gravity, so that the film is distributed on the heat exchange tube 14, and the best heat exchange effect is realized.
The heat exchange tube 14 is made of a metal material, such as an aluminum alloy material, an alloy steel material, and the like, and the heat exchange tube 14 made of the metal material has the advantages of strong supporting capability, wear resistance, good heat exchange effect, and the like. The heat exchange tube 14 runs through the heat exchange area, cooling water can be introduced into the heat exchange tube 14, and the cooling water can exchange heat with a refrigerant after passing through the heat exchange area, so that the heat of the cooling water can be reduced, the heat of the refrigerant can be increased, and the refrigeration cycle can be realized.
The scour protection subassembly sets up in gas-liquid separation region 11, and because the refrigerant velocity of flow is higher when getting into gas-liquid separation region 11, the refrigerant of higher velocity of flow can strike on the inner wall of gas-liquid separation region 11, can lead to the refrigerant to spatter everywhere, is unfavorable for liquid refrigerant to enter into the heat transfer district through the breach and realizes the cloth membrane on the pipe heat pipe.
The scour protection subassembly sets up and is used for reducing the velocity of flow of refrigerant in refrigerant entry 50 department to make things convenient for in the liquid refrigerant is slow flows into the heat transfer district from the breach on the baffle 13, realize good cloth membrane effect on heat exchange tube 14, improve the heat exchange efficiency of refrigerant.
The scour protection subassembly can be the limiting plate, also can be the restricted aperture.
When the anti-impact assembly is a limiting plate, the limiting plate is arranged at the refrigerant inlet 50 and is opposite to the refrigerant inlet 50. At this moment, when the refrigerant enters the gas-liquid separation area 11, the refrigerant can impact on the limiting plate firstly, and at this moment, the refrigerant can decelerate firstly, and the gas-liquid separation area 11 is a large space, so that the refrigerant can decelerate, and the liquid refrigerant can conveniently enter the heat exchange area.
When the scour protection subassembly was the restricted aperture, liquid refrigerant got into in the restricted aperture, through the restricted aperture, reduced the velocity of flow of refrigerant, simultaneously because gas-liquid separation district 11 is a great space, consequently can be so that the refrigerant has longer deceleration time to make things convenient for liquid refrigerant to enter into heat transfer district.
Adopt above-mentioned technical scheme, separate into two regions with casing 15 through division board 13, two regions are gas-liquid separation district 11 and heat transfer district respectively, switch on mutually between gas-liquid separation district 11 and the heat transfer district, set up the scour protection subassembly in gas-liquid separation district 11 and realize the speed reduction to the refrigerant, reduce the quick impact of refrigerant, make the refrigerant keep lower velocity of flow between getting into the heat transfer district, thereby realize that the refrigerant has higher cloth membrane effect on heat exchange tube 14, the heat exchange efficiency of refrigerant is improved, the hidden danger of compressor suction area liquid has been avoided.
In an embodiment of the present application, the impingement assembly comprises:
the plate body 111 is matched with the side wall of the gas-liquid separation region 11 to form a speed reduction cavity, the refrigerant inlet 50 is located in the speed reduction cavity, and the plate body 111 is provided with a flow equalizing hole for enabling the decelerated refrigerant to flow into the gas-liquid separation region 11.
Specifically, the anti-impact assembly comprises at least one plate body 111, the plate body 111 is made of a metal material, such as an aluminum alloy material, an alloy steel material, and the like, and the plate body 111 made of the metal material has the advantages of strong supporting capability, wear resistance, and the like.
When the plate body 111 is one, a speed reduction cavity in a right-angle triangular prism shape is formed by enclosing between the plate body 111 and the side wall of the gas-liquid separation area 11, and the flow equalizing holes are formed in the plate body 111.
When the plate body 111 is two, be first plate body and second plate body respectively, on the diapire of second plate body perpendicular to gas-liquid separation district 11, the free end at the second plate body is connected to one side of first plate body, and the opposite side of first plate body is connected on the lateral wall of gas-liquid separation district 11 to form the speed reduction chamber. The included angle between the first plate body and the second plate body is between 90 degrees and 180 degrees and does not include the number. The flow equalizing hole is arranged on the second plate body.
In the present application, the number of the plate bodies 111 is two.
By adopting the technical scheme, the refrigerant is decelerated through the deceleration cavity formed by the arranged plate body 111 and the gas-liquid separation area 11, the structure is simple, and the implementation is convenient.
In an embodiment of the present application, the plate 111 is provided with an impact area facing the refrigerant inlet 50, and the flow equalizing holes are disposed on two sides of the impact area.
Specifically, the position that just faces refrigerant inlet 50 on plate body 111 sets up to the impact zone, and this impact zone is when the refrigerant enters into the speed reduction intracavity from refrigerant inlet 50 for block the refrigerant, make the refrigerant to the both sides diffusion of impact zone, realize the deceleration to the refrigerant, the while is the flow equalizing hole setting in the both sides of impact zone, and the refrigerant that is blockked to both sides diffusion by the impact zone flows into gas-liquid separation zone 11 through the flow equalizing hole, simple structure, the implementation of being convenient for.
In one embodiment of the present application, the aperture of the flow equalizing hole increases in sequence along the direction from the impact area to the end of the plate 111.
Specifically, the aperture of the hole that flow equalizes increases along the tip direction of impact zone to plate body 111 in proper order, because apart from the impact zone farther, the velocity of flow of refrigerant is less, consequently will keep away from the aperture increase in the hole that flow equalizes of impact zone, can improve the output quantity of refrigerant, does not constitute the throttle to the refrigerant, simple structure, the implementation of being convenient for.
In an embodiment of the present application, the impingement assembly further comprises:
and the impingement plate 112 is arranged at the outlet of the flow equalizing hole and used for reducing the flow rate of the refrigerant flowing out of the flow equalizing hole.
Specifically, the exit of equalizing hole is provided with impingement plate 112, and impingement plate 112 is with the export of just equalizing hole for reduce the velocity of flow of the refrigerant that the equalizing hole flows out, through the secondary striking, further reduce the velocity of flow of refrigerant, make the refrigerant further reduce from the speed that gas-liquid separation zone 11 entered into the heat transfer district, improved the refrigerant cloth membrane effect on the pipe heat pipe, simple structure, the implementation of being convenient for.
In an embodiment of the present invention, a first gas-liquid filter 113 for separating gas and liquid of the refrigerant is disposed on a side of the impingement plate 112 away from the plate 111.
Specifically, the first gas-liquid filter screen 113 is arranged on one side, far away from the plate body 111, of the impingement plate 112, and gas-liquid two-phase refrigerants pass through the first gas-liquid filter screen 113, so that the gas-liquid refrigerants can pass through the first gas-liquid filter screen 113, the liquid refrigerants are left on the first gas-liquid filter screen 113, and along with continuous accumulation, large water drops are formed to drip, so that separation of the gas-liquid refrigerants and the liquid refrigerants is realized, and the risk of liquid carrying in the air suction of the compressor is further reduced.
In an embodiment of the present application, the heat exchanging device 10 further includes a filtering assembly disposed between the output end of the anti-impact assembly and the refrigerant outlet 60 for filtering the refrigerant.
Specifically, the heat exchanger 10 further includes a filtering assembly disposed between the output end of the anti-impact assembly and the refrigerant outlet 60 for filtering the refrigerant.
It is conceivable that the filter assembly re-filters the refrigerant entering the refrigerant outlet 60, and the content of the liquid refrigerant in the refrigerant entering the refrigerant outlet 60 is further reduced by the filter assembly, thereby further reducing the risk of liquid entrainment in the suction gas of the compressor.
In one embodiment of the present application, the filter assembly comprises:
and a second gas-liquid filter screen 123 disposed between the refrigerant outlet 60 and the outlet of the gas-liquid separation region 11, for filtering the refrigerant.
Specifically, the filter assembly includes second gas-liquid filter screen 123, and the second filter screen setting is between the export of refrigerant export 60 and gas-liquid separation zone 11, and through filtering the refrigerant to the export of gas-liquid separation zone 11, avoid the liquid refrigerant in the gas-liquid separation zone 11 to enter into the compressor in, further reduced the compressor and inhaled the risk of taking liquid.
In an embodiment of the present application, the filter assembly further comprises:
at least one baffle 121 connected to the gas-liquid separation region 11 and the channel communicated with the refrigerant outlet 60, wherein the height of the free side of the baffle 121 is greater than the height of the fixed side of the baffle 121, and the baffle 121 is provided with a liquid equalizing hole for dropping the liquid refrigerant.
Specifically, the filter assembly further includes at least one baffle 121, the baffle 121 is connected in the passage through which the gas-liquid separation region 11 and the refrigerant outlet 60 are communicated, and 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 to the fixed side of the baffle 121 along the baffle 121 under the action of gravity. The baffle 121 is provided with a liquid equalizing hole. The accumulated liquid refrigerant falls down under the action of gravity through the liquid equalizing hole. The gas-liquid separation is realized, and the risk of liquid carrying during gas suction of the compressor is further reduced.
In an embodiment of the present application, a liquid-equalizing plate 18 is disposed in the heat exchange area, and the liquid refrigerant flowing into the gas-liquid separation area 11 uniformly drops on the heat exchange tube 14, and an overflow channel 174 for conveying the gaseous refrigerant to the refrigerant outlet 60 is disposed on each of the liquid-equalizing plate 18 and one side of the heat exchange tube 14.
Specifically, a liquid equalizing plate 18 for uniformly dripping liquid refrigerant flowing into the gas-liquid separation region 11 onto the heat exchange tube 14 is arranged in the heat exchange region, an overflow passage 174 is arranged on one side of the liquid equalizing plate and one side of the heat exchange tube 14, and an output end of the overflow passage 174 is communicated with the refrigerant outlet 60. By arranging the overflow channel 174, after the refrigerant is vaporized, the refrigerant can directly overflow through the overflow channel 174, thereby avoiding the influence of the vaporized refrigerant on the liquid refrigerant and further improving the stability of the film distribution of the liquid refrigerant on the heat exchange tube 14.
In an embodiment of the present application, a liquid blocking plate 173 that blocks the overflow 174 is disposed in the overflow 174, an air hole for flowing out vaporized refrigerant is disposed on the liquid blocking plate 173, and a protrusion 172 that limits the liquid refrigerant on the upper surface of the liquid blocking plate 173 to drop is disposed at an edge of the air hole.
Specifically, be provided with in the spillway 174 and keep off liquid board 173, be provided with the gas pocket that makes things convenient for gaseous state refrigerant to flow on keeping off liquid board 173, the edge of gas pocket is provided with protruding 172, and this protruding 172 is located the upper surface of keeping off liquid board 173, through set up protruding 172 on the upper surface, can avoid keeping off liquid board 173 upper surface liquid state refrigerant to drop to avoid the influence to gaseous state refrigerant.
In an embodiment of the present application, a third gas-liquid filter screen 171 is further disposed in the overflow channel 174.
Specifically, a third gas-liquid filter screen 171 is further disposed in the overflow channel 174, and the gas-liquid filter screen is disposed to separate gas and liquid of the refrigerant in the overflow channel 174, so that the risk of liquid entrainment during gas suction of the compressor is further reduced.
The application also discloses an integrated heat exchanger, which comprises the flash tank 20, the condenser 30 and the heat exchange device 10 as above, wherein the flash tank 20, the condenser 30 and the heat exchange device 10 are integrally formed.
The application also discloses a water chilling unit, which comprises the integrated heat exchanger.
The above only be the preferred embodiment of the utility model discloses a not consequently restriction the utility model discloses a patent range, all are in the utility model discloses a conceive, utilize the equivalent structure transform of what the content was done in the description and the attached drawing, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.
Claims (14)
1. A heat exchange device, comprising:
a housing having a refrigerant inlet and a refrigerant outlet;
the separation plate is used for separating the shell into a gas-liquid separation area and a heat exchange area, the refrigerant inlet is positioned in the gas-liquid separation area, the gas-liquid separation area and the heat exchange area are communicated with the refrigerant outlet, and the separation plate is provided with a notch which can enable liquid refrigerant in the gas-liquid separation area to enter the heat exchange area;
the heat exchange tube penetrates through the heat exchange area and can exchange heat with a refrigerant in the heat exchange area; and
and the anti-impact assembly is arranged in the gas-liquid separation area and is used for reducing the flow velocity of the refrigerant at the refrigerant inlet so as to ensure that the refrigerant flows into the heat exchange area at a constant speed.
2. The heat exchange device of claim 1, wherein the impingement assembly comprises:
the plate body is matched with the side wall of the gas-liquid separation area to form a speed reduction cavity, the refrigerant inlet is located in the speed reduction cavity, and the plate body is provided with a flow equalizing hole which enables the decelerated refrigerant to flow into the gas-liquid separation area.
3. The heat exchange device of claim 2, wherein the plate body is provided with an impact area facing the refrigerant inlet, and the flow equalizing holes are arranged on two sides of the impact area.
4. The heat exchange device of claim 3 wherein the apertures of the flow equalizing holes increase in sequence from the impingement zone to the end of the plate body.
5. The heat exchange device of claim 2, wherein the impingement assembly further comprises:
and the impingement plate is arranged at the outlet of the flow equalizing hole and used for reducing the flow rate of the refrigerant flowing out of the flow equalizing hole.
6. The heat exchange device according to claim 5, wherein a first gas-liquid filter screen for separating gas and liquid of the refrigerant is disposed on one side of the impingement plate away from the plate body.
7. The heat exchange device of claim 1, further comprising a filter assembly disposed between the output end of the impingement assembly and the refrigerant outlet for filtering the refrigerant.
8. The heat exchange device of claim 7, wherein the filter assembly comprises:
and the second gas-liquid filter screen is arranged between the refrigerant outlet and the outlet of the gas-liquid separation area and is used for filtering the refrigerant.
9. The heat exchange device of claim 7, wherein the filter assembly further comprises:
the baffle plate is connected in a channel communicated with the gas-liquid separation area and the refrigerant outlet, the height of the free side of the baffle plate is larger than that of the fixed side of the baffle plate, and the baffle plate is provided with a liquid equalizing hole capable of enabling the liquid refrigerant to fall off.
10. The heat exchange device according to claim 9, wherein a liquid equalizing plate for uniformly dripping the liquid refrigerant flowing into the gas-liquid separation region onto the heat exchange tube is arranged in the heat exchange region, and a spillway for delivering the gaseous refrigerant to the refrigerant outlet is arranged on one side of the liquid equalizing plate and one side of the heat exchange tube.
11. The heat exchange device of claim 10, wherein a liquid baffle for blocking the overflow passage is disposed in the overflow passage, the liquid baffle is provided with an air hole for the vaporized refrigerant to flow out, and a protrusion for limiting the liquid refrigerant on the upper surface of the liquid baffle from falling is disposed at the edge of the air hole.
12. The heat exchange device of claim 11, wherein a third gas-liquid filter screen is further disposed in the spillway.
13. An integrated heat exchanger comprising a flash tank, a condenser, and a heat exchange device according to any one of claims 1 to 12, the flash tank, the condenser, and the heat exchange device being integrally formed.
14. A chiller including an integrated heat exchanger as claimed in claim 13.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222956650.6U CN218722411U (en) | 2022-11-07 | 2022-11-07 | Heat exchange device, integrated heat exchanger and water chilling unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222956650.6U CN218722411U (en) | 2022-11-07 | 2022-11-07 | Heat exchange device, integrated heat exchanger and water chilling unit |
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| Publication Number | Publication Date |
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| CN218722411U true CN218722411U (en) | 2023-03-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222956650.6U Active CN218722411U (en) | 2022-11-07 | 2022-11-07 | Heat exchange device, integrated heat exchanger and water chilling unit |
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| CN (1) | CN218722411U (en) |
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- 2022-11-07 CN CN202222956650.6U patent/CN218722411U/en active Active
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