CN214501804U - Vertical condensation enhanced heat exchanger for gas-liquid two-phase separation - Google Patents
Vertical condensation enhanced heat exchanger for gas-liquid two-phase separation Download PDFInfo
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- CN214501804U CN214501804U CN202120653834.8U CN202120653834U CN214501804U CN 214501804 U CN214501804 U CN 214501804U CN 202120653834 U CN202120653834 U CN 202120653834U CN 214501804 U CN214501804 U CN 214501804U
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Abstract
The utility model relates to a heat exchanger is reinforceed in vertical condensation of double-phase separation of gas-liquid belongs to heat exchanger technical field. The condenser is used for solving the problems that the traditional condenser condenses refrigerant steam into a liquid film in a pipeline, reduces the heat transfer coefficient of a heat exchange pipe, reduces the heat exchange amount, and causes the increase of the size, the cost and the energy consumption of the condenser. The utility model discloses a shell and a plurality of heat transfer device that the group connects gradually, heat transfer device includes two spinal branch vaulting poles, circular cone baffle, ring baffle, round platform top import, overhead gage, lower baffle and many heat exchange tubes. The utility model is used for when the heat transfer is reinforceed in the double-phase separation condensation of gas-liquid, the gaseous state refrigerant refrigerates through a plurality of heat exchange tubes, and liquid refrigerant forms the liquid film, and the hole flow through heat exchange tube that the ring baffle was flowed through along circular cone baffle carries out the heat transfer, can effectively improve the problem that refrigerant steam condenses inside the pipeline and form the heat transfer coefficient that the liquid film caused and reduce, can effectively improve heat transfer volume, increase heat exchange efficiency.
Description
Technical Field
The utility model relates to a vertical heat exchanger technical field particularly, relates to a heat exchanger is reinforceed in vertical condensation of double-phase separation of gas-liquid.
Background
The condensing heat exchanger, as its name implies, belongs to a device for cooling refrigerant vapor and condensing the refrigerant vapor into liquid refrigerant, and has the most important function of completing heat exchange of a refrigeration system. Traditional condensing heat exchanger is at cryogenic in-process, and refrigerant steam condenses into liquid in the pipeline, adheres to and forms the refrigerant liquid film at the pipeline inner wall, can cause the reduction of heat exchange tube heat transfer coefficient and heat transfer volume, consequently satisfies equal heat transfer volume when needs and can cause following shortcoming:
1. the size of the condensing heat exchanger needs to be increased to offset the loss of heat exchange quantity, the occupied area is also increased, resources are consumed more, and pollution is easy to form;
2. the number of heat exchange tubes is increased, the loss of materials is increased, the production cost is increased, and the structure is too compact due to the additional arrangement of the number of the heat exchange tubes, so that the cleaning is difficult in the daily operation process;
3. the temperature of the cooling medium is reduced and the energy consumption is increased.
The utility model has the following contents:
the to-be-solved technical problem of the utility model is:
in the condensation process of the existing condenser, the heat exchange coefficient caused by the condensation of refrigerant steam in the pipeline to form a liquid film is reduced, the heat exchange quantity is reduced, and the heat exchange efficiency is reduced.
The utility model discloses a solve the technical scheme that above-mentioned technical problem adopted:
the utility model provides a heat exchanger is reinforceed in vertical condensation of double-phase separation of gas-liquid, including shell and a plurality of groups heat transfer device, heat transfer device is located the shell and connects gradually, the top of shell is equipped with first heat transfer medium import pipeline, and the bottom is equipped with the export of first heat transfer medium, the shell lateral wall is equipped with second heat transfer medium import pipeline and second heat transfer medium export pipeline.
Heat transfer device includes bracing piece, circular cone baffle, ring baffle, round platform top import, overhead gage, baffle and many heat exchange tubes down, bracing piece one end is connected with the heat exchanger shell, and the other end is connected with circular cone baffle, the ring baffle outside links to each other with the heat exchanger shell, inboard and round platform top access connection, the ring baffle is close to heat exchanger shell department and is provided with the discharge orifice, round platform top import lower extreme is connected with the overhead gage, and the upper end is less than circular cone baffle, overhead gage and lower baffle parallel arrangement, many heat exchange tubes run through overhead gage and lower baffle in proper order.
Optionally, the second heat exchange medium inlet pipeline is located above the lower baffle, and the second heat exchange medium outlet pipeline is located below the upper baffle.
Optionally, the support rods are symmetrically arranged on two sides of the conical baffle plate by taking the first heat exchange medium inlet pipeline as a center.
Optionally, an included angle between the annular baffle and the heat exchanger shell is greater than 0 ° and less than or equal to 5 °.
Optionally, still include the honeycomb duct, the honeycomb duct is located discharge hole below and communicates the setting, the honeycomb duct bottom is higher than last baffle.
Optionally, a plurality of spray holes are uniformly distributed on the circular ring baffle.
Optionally, the inlet of the heat exchange tube is of a serrated liquid distributor structure.
Optionally, M baffle plates are arranged between the upper baffle plate and the lower baffle plate, and the baffle plates are perpendicular to the heat exchanger shell and are used for dividing the heat exchange device into M +1 flow paths.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model is used for when gas-liquid two-phase separation condensation strengthens the heat transfer, first heat transfer medium is the refrigerant, the second heat transfer medium is the cooling water, when the refrigerant gets into in the heat exchanger, the gaseous state refrigerant refrigerates through a plurality of heat exchange tubes, the liquid refrigerant forms the liquid film, the liquid film flows on the ring baffle along the slope of circular cone baffle, hole flow through the heat exchange tube on the ring baffle carries out the heat transfer, the refrigerant gives out the heat and liquefies to the liquid and flows out from first heat transfer medium export in to the cooling water, can effectively improve the problem that the heat transfer coefficient that the formation liquid film caused that the refrigerant steam condenses inside the pipeline reduces, improve the heat transfer volume, increase heat exchange efficiency;
the utility model has the advantages that the vertically distributed heat exchange tubes are arranged, so that the liquid refrigerant can flow out under the action of gravity, the film is prevented from forming inside the heat exchange tubes, and the heat exchange efficiency is effectively improved; meanwhile, the plurality of groups of heat exchange devices are arranged, so that the heat exchange devices can be increased or decreased according to actual conditions, the practical application is met, and the popularization value is realized.
Description of the drawings:
FIG. 1 is a first schematic structural diagram of a vertical condensation-enhanced heat exchanger for gas-liquid two-phase separation;
FIG. 2 is a schematic structural diagram II of a vertical condensation-enhanced heat exchanger for gas-liquid two-phase separation;
FIG. 3 is a third schematic structural view of a vertical condensation-enhanced heat exchanger for gas-liquid two-phase separation;
FIG. 4 is a fourth schematic structural view of a vertical condensation-enhanced heat exchanger for gas-liquid two-phase separation;
FIG. 5 is a fifth structural schematic diagram of a vertical condensation-enhanced heat exchanger for gas-liquid two-phase separation;
FIG. 6 is a schematic structural diagram six of a vertical condensation-enhanced heat exchanger for gas-liquid two-phase separation;
FIG. 7 is a seventh schematic structural diagram of a vertical condensation-enhanced heat exchanger for gas-liquid two-phase separation;
FIG. 8 is a schematic perspective view of a core structure of a heat exchange device of a vertical condensation-enhanced heat exchanger for gas-liquid two-phase separation;
FIG. 9 is a top view of the core structure of the heat exchange device of a vertical condensation-enhanced heat exchanger with gas-liquid two-phase separation.
The heat exchange device comprises a shell, 1-1-a first heat exchange medium inlet pipeline, 1-2-a first heat exchange medium outlet, 1-3-a second heat exchange medium inlet pipeline, 1-4-a second heat exchange medium outlet pipeline, 2-a heat exchange device, 2-1-a support rod, 2-2-a conical baffle, 2-10-a circular baffle, 2-11-a circular truncated cone top end inlet, 2-20-an outflow hole, 2-21-a flow guide pipe, 2-30-an upper baffle, 2-31-a lower baffle, 2-40-a spray hole, 3-1-a heat exchange pipe, 3-2-a liquid distributor structure and 3-11-a baffle plate.
Detailed Description
The first embodiment is as follows: with reference to fig. 1 to 7, the utility model provides a heat exchanger is reinforceed in vertical condensation of gas-liquid double-phase separation, including shell and a plurality of heat transfer device of group, heat transfer device is located the shell and connects gradually, the top of shell is equipped with first heat transfer medium inlet pipeline, and the bottom is equipped with first heat transfer medium export, the shell lateral wall is equipped with second heat transfer medium inlet pipeline and second heat transfer medium outlet pipeline.
Heat transfer device includes bracing piece, circular cone baffle, ring baffle, round platform top import, overhead gage, baffle and many heat exchange tubes down, bracing piece one end is connected with the heat exchanger shell, and the other end is connected with circular cone baffle, the ring baffle outside links to each other with the heat exchanger shell, inboard and round platform top access connection, the ring baffle is close to heat exchanger shell department and is provided with the discharge orifice, round platform top import lower extreme is connected with the overhead gage, and the upper end is less than circular cone baffle, overhead gage and lower baffle parallel arrangement, many heat exchange tubes run through overhead gage and lower baffle in proper order.
When the gas-liquid two-phase separation condensation enhances heat exchange, the first heat exchange medium is a refrigerant, the second heat exchange medium is cooling water, when the refrigerant enters the heat exchanger, the gaseous refrigerant is refrigerated through the plurality of heat exchange tubes, the liquid refrigerant forms a liquid film, the liquid film flows onto the circular baffle along the gradient of the conical baffle, the liquid film flows through the heat exchange tubes through the pores on the circular baffle for heat exchange, the refrigerant gives out heat to the cooling water and is liquefied into liquid, the liquid flows out of the first heat exchange medium outlet 1-2, the problem of reduction of the heat exchange coefficient caused by condensation of refrigerant vapor inside the pipeline to form the liquid film can be effectively solved, the heat exchange amount can be effectively improved, and the heat exchange efficiency can be increased;
by arranging the heat exchange tubes which are vertically distributed, the liquid refrigerant can flow out under the action of gravity, so that the film is prevented from being formed inside the heat exchange tubes, and the heat exchange efficiency is effectively improved; meanwhile, the plurality of groups of heat exchange devices are arranged, so that the heat exchange devices can be increased or decreased according to actual conditions, the practical application is met, and the popularization value is realized.
The second specific embodiment: the utility model provides a heat exchanger is reinforceed in vertical condensation of double-phase separation of gas-liquid, including shell and two sets of heat transfer device, heat transfer device is located the shell and connects gradually for improve the heat transfer effect. Other combinations and connections of this embodiment are the same as those of the first embodiment.
The third concrete implementation scheme is as follows: the second heat exchange medium inlet pipeline is located above the lower baffle, and the second heat exchange medium outlet pipeline is located below the upper baffle, so that the contact area between the second heat exchange medium inlet pipeline and the heat exchange pipe can be effectively increased, and the heat exchange effect is improved. Other combinations and permutations of this embodiment are the same as those of one or both embodiments.
The fourth specific embodiment: the support rods are symmetrically arranged on two sides of the conical baffle by taking the first heat exchange medium inlet pipeline as a center, and are used for enabling liquid films formed by the refrigerant to uniformly disperse and fall onto the annular baffle. Other combinations and permutations of this embodiment are the same as those of one or both embodiments.
The fifth concrete embodiment: the included angle between the circular ring baffle and the shell of the heat exchanger is more than 0 degree and less than or equal to 5 degrees, and the circular ring baffle is used for enabling the liquid refrigerant to flow into the heat exchange tube. Other combinations and permutations of this embodiment are the same as those of one or both embodiments.
The sixth specific embodiment: still include the honeycomb duct, the honeycomb duct is located discharge hole below and communicates the setting, the honeycomb duct bottom is higher than the baffle for carry out the water conservancy diversion to liquid refrigerant. Other combinations and associations of this embodiment are the same as those of the first, second, third, fourth or fifth embodiment.
The seventh specific embodiment: referring to fig. 8 and 9, a plurality of spray holes are uniformly distributed on the annular baffle for guiding the liquid refrigerant into the heat exchange tube. Other combinations and connections of this embodiment are the same as those of the sixth embodiment.
In the eighth specific embodiment, a plurality of floating balls are arranged above the spraying holes of the ring baffle. Other combinations and connections of this embodiment are the same as those of the seventh embodiment.
In a ninth specific embodiment, the inlet of the heat exchange tube is a serrated liquid distributor structure for accelerating the flow of the liquid refrigerant. Other combinations and connections of this embodiment are the same as those of the seventh or eighth embodiments.
In a tenth specific embodiment, M baffle plates are arranged between the upper baffle plate and the lower baffle plate, and the baffle plates are perpendicular to the heat exchanger shell and are used for dividing the heat exchange device into M +1 flow paths, so that the contact area between the refrigerant and the cooling water can be increased by increasing the flow paths, and the heat exchange efficiency is effectively improved. Other combinations and connections of this embodiment are the same as those of the seventh or eighth embodiments.
Although the present disclosure has been described above, the scope of the present disclosure is not limited thereto. The utility model discloses a field technical personnel can carry out various changes and amending under the prerequisite of the spirit and scope that do not deviate from the utility model discloses, and these changes all will fall into with the amendment the utility model discloses a protection scope.
The working principle is as follows:
when the heat exchanger is used for gas-liquid two-phase separation condensation enhanced heat exchange, the first heat exchange medium is a refrigerant, the second heat exchange medium is cooling water, the temperature of the cooling water is lower than that of the refrigerant, the refrigerant and the cooling water exchange heat through the plurality of heat exchange tubes, and the refrigerant emits heat into the cooling water and is liquefied into liquid to flow out of the first heat exchange medium outlet.
Refrigerant flowing: the gas-liquid two-phase refrigerant enters from a first heat exchange medium inlet pipeline, the flow direction of the refrigerant is blocked by a conical baffle, a liquid film is formed on the conical baffle by the liquid refrigerant, the liquid film flows onto a circular ring baffle along the gradient of the conical baffle, the gas refrigerant bypasses the conical baffle and is uniformly distributed to a plurality of heat exchange tubes through an inlet at the top end of a circular table, the liquid refrigerant on the circular ring baffle flows out through an outflow hole along the gradient of the circular ring baffle and enters a plurality of heat exchange tubes on the outer side of a heat exchange device to achieve the effect of gas-liquid separation, the separated gas refrigerant and the separated liquid refrigerant are subjected to liquefaction heat exchange with cooling water through the plurality of heat exchange tubes and flow out through the plurality of heat exchange tubes and are received by the heat exchange device on the next layer, so on the like, the refrigerant sequentially flows through each heat exchange device and is cooled and liquefied, and the liquid refrigerant formed after liquefaction is collected at the bottom of the shell, and flows out of the first heat exchange medium outlet.
Cooling water flows: the cooling water enters the lowermost layer of the heat exchange device through the second heat exchange medium inlet pipeline and is received through the lower baffle plate, a plurality of heat exchangers are slowly immersed from the bottom to perform cooling heat exchange with the refrigerant, the temperature rises simultaneously, and finally the cooling water flows out from the second heat exchange medium outlet pipeline communicated with the uppermost layer of the heat exchange device, so on, the cooling water of each heat exchange device independently flows in through the second heat exchange medium inlet pipeline and flows out through the second heat exchange medium outlet pipeline.
Claims (8)
1. A vertical condensation enhanced heat exchanger for gas-liquid two-phase separation is characterized in that: comprises a shell (1) and a plurality of groups of heat exchange devices (2), wherein the heat exchange devices (2) are positioned in the shell (1) and are sequentially connected, a first heat exchange medium inlet pipeline (1-1) is arranged at the top of the shell (1), a first heat exchange medium outlet (1-2) is arranged at the bottom of the shell, a second heat exchange medium inlet pipeline (1-3) and a second heat exchange medium outlet pipeline (1-4) are arranged on the side wall of the shell (1),
the heat exchange device (2) comprises a support rod (2-1), a conical baffle (2-2), a circular ring baffle (2-10), a circular table top end inlet (2-11), an upper baffle (2-30), a lower baffle (2-31) and a plurality of heat exchange tubes (3-1), one end of the support rod (2-1) is connected with a heat exchanger shell (1), the other end of the support rod is connected with the conical baffle (2-2), the outer side of the circular ring baffle (2-10) is connected with the heat exchanger shell (1), the inner side of the circular ring baffle is connected with the circular table top end inlet (2-11), a discharge hole (2-20) is formed in the position, close to the heat exchanger shell (1), of the circular table top end inlet (2-11), the lower end of the circular table top end inlet (2-11) is connected with the upper baffle (2-30), and the upper end of the circular ring baffle is lower than the lower end of the conical baffle (2-2), the upper baffle (2-30) and the lower baffle (2-31) are arranged in parallel, and the plurality of heat exchange tubes (3-1) sequentially penetrate through the upper baffle (2-30) and the lower baffle (2-31).
2. The vertical condensation-enhanced heat exchanger for gas-liquid two-phase separation according to claim 1, characterized in that: the second heat exchange medium inlet pipeline (1-3) is positioned above the lower baffle (2-31), and the second heat exchange medium outlet pipeline (1-4) is positioned below the upper baffle (2-30).
3. The vertical condensation-enhanced heat exchanger for gas-liquid two-phase separation according to claim 1, characterized in that: the supporting rods (2-1) are symmetrically arranged at two sides of the conical baffle (2-2) by taking the first heat exchange medium inlet pipeline (1-1) as a center.
4. The vertical condensation-enhanced heat exchanger for gas-liquid two-phase separation according to claim 1, characterized in that: the included angle between the circular ring baffle (2-10) and the heat exchanger shell (1) is more than 0 degree and less than or equal to 5 degrees.
5. The vertical condensation-enhanced heat exchanger for gas-liquid two-phase separation according to any one of claims 1 to 4, wherein: the flow guide pipe is characterized by further comprising a flow guide pipe (2-21), wherein the flow guide pipe (2-21) is located below the outflow hole (2-20) and is communicated with the outflow hole, and the bottom end of the flow guide pipe (2-21) is higher than the upper baffle (2-30).
6. The vertical condensation-enhanced heat exchanger for gas-liquid two-phase separation according to claim 5, characterized in that: a plurality of spraying holes (2-40) are uniformly distributed in the circumferential direction of the circular ring baffle (2-10).
7. The vertical condensation-enhanced heat exchanger for gas-liquid two-phase separation according to claim 5, characterized in that: the inlet of the heat exchange tube (3-1) is of a sawtooth-shaped liquid distributor structure (3-2).
8. The vertical condensation-enhanced heat exchanger for gas-liquid two-phase separation according to claim 6 or 7, characterized in that: m baffle plates (3-11) are arranged between the upper baffle plates (2-30) and the lower baffle plates (2-31), and the baffle plates (3-11) are perpendicular to the heat exchanger shell (1) and are used for dividing the heat exchange device (2) into M +1 flow paths.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120653834.8U CN214501804U (en) | 2021-03-31 | 2021-03-31 | Vertical condensation enhanced heat exchanger for gas-liquid two-phase separation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120653834.8U CN214501804U (en) | 2021-03-31 | 2021-03-31 | Vertical condensation enhanced heat exchanger for gas-liquid two-phase separation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214501804U true CN214501804U (en) | 2021-10-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120653834.8U Active CN214501804U (en) | 2021-03-31 | 2021-03-31 | Vertical condensation enhanced heat exchanger for gas-liquid two-phase separation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214501804U (en) |
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2021
- 2021-03-31 CN CN202120653834.8U patent/CN214501804U/en active Active
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