Heat exchange and flash evaporation device

Abstract

The present application discloses a heat exchange flash evaporation device, which relates to the technical field of evaporation heat exchange. The heat exchange flash evaporation device includes: a tank body. The tank body is provided with a flash evaporation area and a heat exchange area. The flash evaporation area is communicated with the heat exchange area, and the heat exchange area is arranged in front of the flash evaporation area along a first direction. The tank body is further provided with a gas-liquid mixture inlet, a liquid discharge port and a gas outlet. Both the gas-liquid mixture inlet and the liquid discharge port are communicated with the flash evaporation area, and are both arranged behind the flash evaporation area along the first direction, and the gas-liquid mixture inlet and the liquid discharge port are arranged at intervals. The gas outlet is communicated with the heat exchange area and is arranged in front of the heat exchange area along the first direction. The tank body is used for allowing steam to flow from the flash evaporation area to the heat exchange area along the first direction in the tank body. The heat exchange flash evaporation device of the present application can improve the recovery rate of high-temperature and high-pressure gas-liquid mixtures.

Description

Technical Field

[0001] The present application relates to the technical field of evaporation heat exchange, and more particularly, to a heat exchange flash evaporation device. Background Art

[0002] A steam rotary dryer is used to dry ore powder by heating. The heat exchange system of the steam rotary dryer and the condensation system of the post-process condensation tank are important links for steam recovery and utilization. During the steam recovery process, steam usually undergoes a series of heat exchange and condensation steps to convert the high-temperature and high-pressure gas-liquid mixture into liquid water for re-entering the boiler circulation system. However, in actual operation, a large amount of the high-temperature and high-pressure gas-liquid mixture fails to be effectively cooled and converted into liquid water, but is directly discharged, resulting in energy waste and unnecessary cost expenditure. Summary of the Invention

[0003] In view of this, the purpose of the present application is to overcome the deficiencies in the prior art and provide a heat exchange flash evaporation device that can improve the recovery rate of the high-temperature and high-pressure gas-liquid mixture.

[0004] To achieve the above purpose, the technical solution adopted in the present application is as follows:

[0005] The present application provides a heat exchange flash evaporation device, including:

[0006] A tank body, provided with a flash evaporation area and a heat exchange area, the flash evaporation area is communicated with the heat exchange area, and the heat exchange area is arranged in front of the flash evaporation area along a first direction. The tank body is further provided with a gas-liquid mixture inlet, a liquid discharge port, and a gas outlet. The gas-liquid mixture inlet and the liquid discharge port are both communicated with the flash evaporation area and are both arranged behind the flash evaporation area along the first direction, and the gas-liquid mixture inlet and the liquid discharge port are arranged at intervals. The gas outlet is communicated with the heat exchange area and is arranged in front of the heat exchange area along the first direction. The tank body is used for allowing steam to flow from the flash evaporation area to the heat exchange area along the first direction in the tank body.

[0007] In an optional embodiment, the heat exchange flash evaporation device further includes an air guide pipe, the air guide pipe is arranged in the flash evaporation area and extends along the first direction. One end of the air guide pipe behind the first direction is communicated with the gas-liquid mixture inlet, and one end of the air guide pipe in front of the first direction is communicated with the heat exchange area.

[0008] In an optional embodiment, the heat exchange flash evaporation device further includes a liquid discharge pipe, the liquid discharge pipe is arranged in the flash evaporation area and extends along the first direction, and one end of the liquid discharge pipe in front of the first direction is communicated with one end of the air guide pipe behind the first direction, and one end of the liquid discharge pipe behind the first direction is communicated with the liquid discharge port.

[0009] In an alternative embodiment, the heat exchange and flash evaporation device further includes a first partition plate and a second partition plate. Both the first partition plate and the second partition plate are disposed in the tank body and are spaced apart. The first partition plate is disposed behind the heat exchange area along the first direction, and the second partition plate is disposed in front of the flash evaporation area along the first direction, so as to form a gas-liquid separation area between the heat exchange area and the flash evaporation area at intervals. Both the heat exchange area and the flash evaporation area communicate with the gas-liquid separation area.

[0010] In an alternative embodiment, the first partition plate is provided with a first avoidance opening, and the second partition plate is provided with a second avoidance opening. The heat exchange area communicates with the gas-liquid separation area through the first avoidance opening, and the gas guiding pipe communicates with the gas-liquid separation area through the second avoidance opening.

[0011] In an alternative embodiment, the heat exchange and flash evaporation device further includes a plurality of first flow disturbing members, and the plurality of first flow disturbing members are arranged at intervals along a second direction in the gas-liquid separation area;

[0012] Wherein, the second direction is perpendicular to the first direction.

[0013] In an alternative embodiment, the first flow disturbing member has a guiding portion and a first flow disturbing portion. The guiding portion extends along the first direction. Both ends of the first flow disturbing member along the first direction have the guiding portions, and at least one first flow disturbing portion is connected between the two guiding portions. Each first flow disturbing portion protrudes from the guiding portion along the second direction.

[0014] In an alternative embodiment, the tank body is further provided with a cooling medium inlet and a cooling medium outlet. The cooling medium inlet and the cooling medium outlet are respectively disposed at both ends of the heat exchange area along the second direction. The heat exchange and flash evaporation device further includes a heat exchange pipe. The heat exchange pipe is disposed in the heat exchange area and extends along the second direction, and both ends of the heat exchange pipe along the second direction are respectively communicated with the cooling medium inlet and the cooling medium outlet;

[0015] Wherein, the second direction is perpendicular to the first direction.

[0016] In an alternative embodiment, the heat exchange flash evaporation device further includes a first shunt pipe and a second shunt pipe. Both the first shunt pipe and the second shunt pipe are disposed in the heat exchange area and extend along the first direction. The first shunt pipe is communicated with the cooling medium inlet, and the second shunt pipe is communicated with the cooling medium outlet. There are a plurality of heat exchange pipes, and the plurality of heat exchange pipes are arranged at intervals along the first direction in the heat exchange area. One end of each heat exchange pipe along the second direction is communicated with the first shunt pipe, and the other end of each heat exchange pipe along the second direction is communicated with the second shunt pipe.

[0017] In an alternative embodiment, the heat exchange flash evaporation device further includes a plurality of second flow disturbing members and a plurality of third flow disturbing members. Both the second flow disturbing members and the third flow disturbing members extend along the first direction and are disposed in the heat exchange area. The plurality of second flow disturbing members and the plurality of third flow disturbing members are arranged alternately and at intervals along the second direction, and each second flow disturbing member is spaced from one end of the heat exchange area along the first direction, and each third flow disturbing member is spaced from one end of the heat exchange area along the first direction at the rear;

[0018] Wherein, at least part of the heat exchange pipes penetrate through each second flow disturbing member along the second direction, and at least part of the heat exchange pipes penetrate through each third flow disturbing member along the second direction.

[0019] The heat exchange flash evaporation device of the present application has the following advantages:

[0020] In the heat exchange flash evaporation device of the present application, the high-temperature and high-pressure gas-liquid mixture can enter the flash evaporation area through the gas-liquid mixture inlet, so that part of the liquid water in the gas-liquid mixture becomes steam under the flash evaporation effect, and the temperature and pressure of the steam are both reduced under the flash evaporation effect. Further, the low-temperature and low-pressure steam in the flash evaporation area can flow from the flash evaporation area to the heat exchange area along the first direction for heat exchange in the heat exchange area. Since the steam is cooled under the flash evaporation effect, the lower-temperature steam can reduce the influence on the heat exchange effect of the heat exchange area, so that the heat exchange efficiency of the steam in the heat exchange area is improved, so that more steam can be effectively cooled and converted into liquid water in the heat exchange area. At the same time, the cooled liquid water and the liquid water that is not vaporized in the flash evaporation area can both flow in the tank in the direction opposite to the first direction and be discharged out of the tank through the liquid discharge port to realize the recovery of the high-temperature and high-pressure gas-liquid mixture. In this way, the heat exchange flash evaporation device of the present application can improve the recovery rate of the high-temperature and high-pressure gas-liquid mixture. Description of the Drawings

[0021] To more clearly illustrate the technical solutions of the embodiments of the present application, the accompanying drawings required for the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present application and should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0022] Figure 1 Shows the structural schematic diagram of the heat exchange and flash evaporation device in the present application Figure 1 ;

[0023] Figure 2 Shows the structural schematic diagram of the heat exchange and flash evaporation device in the present application Figure 2 ;

[0024] Figure 3 Shows the structural schematic diagrams of the heat exchange tubes, the second flow disturbing member, and the third flow disturbing member in the present application;

[0025] Figure 4 Shows the structural schematic diagram of the first flow disturbing member in the present application.

[0026] Main element symbol description:

[0027] 100 - Tank body; 110 - Flash evaporation area; 120 - Heat exchange area; 130 - Gas - liquid mixture inlet; 140 - Drainage port; 150 - Gas outlet; 160 - Gas - liquid separation area; 170 - Cooling medium inlet; 180 - Cooling medium outlet;

[0028] 200 - Air intake pipe; 300 - Drainage pipe; 310 - Liquid inlet; 400 - First partition board; 410 - First avoidance opening; 500 - Second partition board; 510 - Second avoidance opening; 600 - First flow disturbing member; 610 - Flow guiding part; 620 - First flow disturbing part; 630 - Second flow disturbing part; 700 - Heat exchange tube; 810 - First shunt pipe; 820 - Second shunt pipe; 910 - Second flow disturbing member; 920 - Third flow disturbing member;

[0029] x - First direction; y - Second direction. Detailed implementation manners

[0030] The embodiments of the present application will be described in detail below. The examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present application and should not be construed as limiting the present application.

[0031] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present application.

[0032] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, the meaning of "a plurality" is two or more unless otherwise specifically defined.

[0033] In the present application, unless otherwise clearly specified and defined, the terms such as "mounted", "connected", "connected to", "fixed" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0034] In the present application, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0035] Referring to Figure 1 and Figure 2 As shown, the heat exchange flash evaporation device involved in the embodiment of the present application includes: a tank body 100.

[0036] Specifically, the tank body 100 is provided with a flash evaporation area 110 and a heat exchange area 120. The flash evaporation area 110 is communicated with the heat exchange area 120, and the heat exchange area 120 is arranged in front of the flash evaporation area 110 along the first direction x. The tank body 100 is further provided with a gas-liquid mixture inlet 130, a liquid discharge port 140 and a gas outlet 150. Both the gas-liquid mixture inlet 130 and the liquid discharge port 140 are communicated with the flash evaporation area 110 and are arranged behind the flash evaporation area 110 along the first direction x, and the gas-liquid mixture inlet 130 and the liquid discharge port 140 are arranged at intervals. The gas outlet 150 is communicated with the heat exchange area 120 and is arranged in front of the heat exchange area 120 along the first direction x. The tank body 100 is used for allowing steam to flow from the flash evaporation area 110 to the heat exchange area 120 in the tank body 100 along the first direction x.

[0037] It should be noted that the first direction x is Figure 1 the direction indicated by x in

[0038] It should be noted that the principle of flash evaporation is to utilize the difference in saturated vapor pressure of substances at different temperatures. By reducing the pressure, the liquid water in the gas-liquid mixture is turned into water vapor. At the same time, a large amount of evaporation enthalpy will be released during the process of high-pressure liquid water turning into water vapor at low pressure. This part of the evaporation enthalpy will continue to exchange heat with the liquid water, resulting in more liquid water turning into water vapor.

[0039] In the heat exchange flash evaporation device of the present application, the high-temperature and high-pressure gas-liquid mixture can enter the flash evaporation area 110 through the gas-liquid mixture inlet 130, so that part of the liquid water in the gas-liquid mixture turns into steam under the action of flash evaporation, and the temperature and pressure of the steam are both reduced under the action of flash evaporation. Further, the low-temperature and low-pressure steam in the flash evaporation area 110 can flow from the flash evaporation area 110 to the heat exchange area 120 along the first direction x for heat exchange in the heat exchange area 120. Since the steam is cooled under the action of flash evaporation, the lower-temperature steam can reduce the influence on the heat exchange effect of the heat exchange area 120, so that the heat exchange efficiency of the steam in the heat exchange area 120 is improved, and more steam can be effectively cooled and converted into liquid water in the heat exchange area 120. At the same time, the cooled liquid water and the liquid water that is not vaporized in the flash evaporation area 110 can both flow in the tank body 100 in the direction opposite to the first direction x and are discharged out of the tank body 100 through the liquid discharge port 140 to realize the recovery of the high-temperature and high-pressure gas-liquid mixture. In this way, the heat exchange flash evaporation device of the present application can improve the recovery rate of the high-temperature and high-pressure gas-liquid mixture.

[0040] Among them, Figure 1 the path indicated by the arrow in the tank body 100 is the flow path of the steam in the tank body 100, Figure 2 and the path indicated by the arrow in the tank body 100 is the flow path of the liquid water in the tank body 100.

[0041] Continue to refer to Figure 1and Figure 2 As shown, the heat exchange and flash evaporation device further includes an air inlet pipe 200. The air inlet pipe 200 is arranged in the flash evaporation area 110 and extends along the first direction x. One end of the air inlet pipe 200 at the rear along the first direction x is communicated with the gas-liquid mixture inlet 130, and one end of the air inlet pipe 200 at the front along the first direction x is communicated with the heat exchange area 120.

[0042] In this embodiment, after the gas-liquid mixture enters the flash evaporation area 110 for flash evaporation, the steam will be squeezed into the air inlet pipe 200 by the internal and external pressure difference of the tank body 100. At the same time, the steam will flow along the first direction x in the air inlet pipe 200 due to the pressure difference, and a low-pressure area will be formed in the air inlet pipe 200, so that a continuous stream of steam can flow through the air inlet pipe 200 along the first direction x. Further, when the steam flows in the air inlet pipe 200, the turbulence of the steam flow can be reduced, thereby increasing the flow velocity of the steam.

[0043] Continue to refer to Figure 1 and Figure 2 As shown, the heat exchange and flash evaporation device further includes a drain pipe 300. The drain pipe 300 is arranged in the flash evaporation area 110 and extends along the first direction x. One end of the drain pipe 300 at the front along the first direction x is communicated with one end of the air inlet pipe 200 at the rear along the first direction x, and one end of the drain pipe 300 at the rear along the first direction x is communicated with the drain port 140.

[0044] In this embodiment, after the gas-liquid mixture enters the flash evaporation area 110, part of the gas-liquid mixture will be squeezed into the drain pipe 300 by the internal and external pressure difference of the tank body 100 and undergoes flash evaporation in the drain pipe 300. After the gas-liquid mixture undergoes flash evaporation in the drain pipe 300, the steam will flow from the drain pipe 300 to the air inlet pipe 200 along the first direction x and enter the heat exchange area 120, and the liquid water will flow in the opposite direction of the first direction x in the drain pipe 300 to the drain port 140 to realize the recovery of this part of the liquid water.

[0045] Specifically, referring to Figure 2 As shown, in this embodiment, the drain pipe 300 is provided with a liquid inlet 310. The liquid inlet 310 is arranged close to the drain port 140, that is, the liquid inlet 310 is arranged at the rear of the drain pipe 300 along the first direction x. When the gas-liquid mixture undergoes flash evaporation in the flash evaporation area 110, part of the liquid water that has not been converted into steam will fall to the bottom of the flash evaporation area 110 in the opposite direction of the first direction x. As the content of the liquid water gradually increases, the liquid water at the bottom of the flash evaporation area 110 can enter the drain pipe 300 through the liquid inlet 310 and be discharged from the tank body 100 through the drain port 140, so as to realize the recovery of this part of the liquid water.

[0046] Refer to Figure 1 and Figure 2As shown, the heat exchange and flash evaporation device further includes a first partition plate 400 and a second partition plate 500. Both the first partition plate 400 and the second partition plate 500 are arranged in the tank body 100 and are spaced apart. The first partition plate 400 is arranged behind the heat exchange area 120 along the first direction x, and the second partition plate 500 is arranged in front of the flash evaporation area 110 along the first direction x, so as to form a gas-liquid separation area 160 at intervals between the heat exchange area 120 and the flash evaporation area 110. The heat exchange area 120 and the flash evaporation area 110 are both communicated with the gas-liquid separation area 160.

[0047] In this embodiment, before the steam enters the heat exchange area 120 from the flash evaporation area 110 along the first direction x, the steam will first pass through the gas-liquid separation area 160 to perform a preliminary gas-liquid separation in the gas-liquid separation. The liquid water after the preliminary gas-liquid separation will flow in the opposite direction of the first direction x and be discharged from the liquid discharge port 140, while the steam will continue to flow along the first direction x into the heat exchange area 120 to realize the recovery of part of the liquid water.

[0048] Continue to refer to Figure 1 and Figure 2 As shown, the first partition plate 400 is provided with a first avoidance opening 410, and the second partition plate 500 is provided with a second avoidance opening 510. The heat exchange area 120 is communicated with the gas-liquid separation area 160 through the first avoidance opening 410, and the air inlet pipe 200 is communicated with the gas-liquid separation area 160 through the second avoidance opening 510.

[0049] In this embodiment, before the steam enters the heat exchange area 120 from the flash evaporation area 110 along the first direction x, the steam will first pass through the gas-liquid separation area 160 to perform a preliminary gas-liquid separation in the gas-liquid separation. After the preliminary gas-liquid separation, the liquid water will enter the air inlet pipe 200 through the second avoidance opening 510 and play a role in cooling the steam in the air inlet pipe 200 again to liquefy part of the steam in advance, further improving the liquefaction efficiency of the steam. At the same time, the liquid water will flow from the air inlet pipe 200 in the opposite direction of the first direction x to the drain pipe 300 and finally be discharged from the liquid discharge port 140 to realize the recovery of part of the liquid water, while the steam will flow into the heat exchange area 120 through the first avoidance opening 410 and be heat-exchanged and liquefied in the heat exchange area 120.

[0050] Continue to refer to Figure 1 and Figure 2 As shown, the heat exchange and flash evaporation device further includes a plurality of first flow disturbing members 600. The plurality of first flow disturbing members 600 are arranged at intervals in the gas-liquid separation area 160 along the second direction y; wherein, the second direction y is perpendicular to the first direction x.

[0051] It should be noted that the second direction y is Figure 1 the direction indicated by y in

[0052] In this embodiment, since a plurality of first spoiler members 600 are arranged at intervals along the second direction y in the gas-liquid separation region 160, when the steam flows through the gas-liquid separation region 160, the steam will contact the plurality of first spoiler members 600, so that the steam is cooled again by the contact between the steam and the first spoiler members 600, further reducing the influence of the steam entering the heat exchange region 120 on the heat exchange efficiency. At the same time, part of the steam can be liquefied during the contact with the first spoiler members 600, so as to further improve the liquefaction rate of the steam. Further, the liquefied liquid water will enter the flash evaporation region 110 and play a role in cooling the steam in the flash evaporation region 110 again, so as to liquefy part of the steam in advance and further improve the liquefaction efficiency of the steam.

[0053] Referring to Figure 4 As shown, the first spoiler member 600 has a guiding portion 610 and a first spoiler portion 620. The guiding portion 610 extends along the first direction x. Both ends of the first spoiler member 600 along the first direction x have guiding portions 610. At least one first spoiler portion 620 is connected between the two guiding portions 610. Each first spoiler portion 620 protrudes from the guiding portion 610 along the second direction y.

[0054] In this embodiment, since the guiding portion 610 extends along the first direction x and both ends of the first spoiler member 600 along the first direction x have guiding portions 610, the steam can be guided from the flash evaporation region 110 to the heat exchange region 120 through the guiding portion 610. At the same time, since at least one first spoiler portion 620 is connected between the two guiding portions 610 and each first spoiler portion 620 protrudes from the guiding portion 610 along the second direction y, when the steam flows through between any two first spoiler members 600 along the first direction x, the steam will contact any one of the first spoiler portions 620, so that part of the steam is liquefied during the contact with the first spoiler portion 620. At the same time, the steam will be disrupted by the first spoiler portion 620 when flowing through the first spoiler portion 620, so that the steam is in a turbulent state, thereby increasing the possibility of contact between the steam and the first spoiler portion 620 and improving the gas-liquid separation rate of the steam in the gas-liquid separation region 160.

[0055] Specifically, referring to Figure 4As shown, in this embodiment, the first spoiler 600 further has a second spoiler portion 630. The second spoiler portion 630 is disposed between the two flow guiding portions 610, and the second spoiler portion 630 protrudes from the flow guiding portion 610 in a direction opposite to that of the first spoiler portion 620 along the second direction y. Between any two first spoilers 600, the second spoiler portion 630 of one first spoiler 600 and the first spoiler portion 620 of the other first spoiler 600 are spaced apart along the second direction y, so as to define a flow passage for steam to pass through between the two first spoilers 600. In this way, when the steam flows along the first direction x between any two first spoilers 600, part of the steam can contact the first spoiler portion 620, and the other part of the steam can contact the second spoiler portion 630, so as to increase the contact probability between the steam and the first spoiler 600, thereby increasing the gas-liquid separation rate of the steam in the gas-liquid separation zone 160.

[0056] Referring to Figure 3 As shown, the tank body 100 is further provided with a cooling medium inlet 170 and a cooling medium outlet 180. The cooling medium inlet 170 and the cooling medium outlet 180 are respectively disposed at two ends of the heat exchange area 120 along the second direction y. The heat exchange and flash evaporation device further includes a heat exchange tube 700. The heat exchange tube 700 is disposed in the heat exchange area 120 and extends along the second direction y, and two ends of the heat exchange tube 700 along the second direction y are respectively communicated with the cooling medium inlet 170 and the cooling medium outlet 180.

[0057] In this embodiment, since the cooling medium inlet 170 and the cooling medium outlet 180 are respectively disposed at two ends of the heat exchange area 120 along the second direction y, and two ends of the heat exchange tube 700 along the second direction y are respectively communicated with the cooling medium inlet 170 and the cooling medium outlet 180, in this way, the cooling medium can be made to flow in the heat exchange area 120 along the second direction y. In this way, the steam at various locations in the heat exchange area 120 can be made to exchange heat with the heat exchange tube 700, thereby improving the heat exchange efficiency of the steam and thus improving the liquefaction efficiency of the steam.

[0058] Specifically, in this embodiment, the cooling medium is cooling water.

[0059] Continue to refer to Figure 3As shown in the figure, the heat exchange and flash evaporation device further includes a first shunt pipe 810 and a second shunt pipe 820. Both the first shunt pipe 810 and the second shunt pipe 820 are arranged in the heat exchange area 120 and extend along the first direction x. The first shunt pipe 810 is communicated with the cooling medium inlet 170, and the second shunt pipe 820 is communicated with the cooling medium outlet 180. There are multiple heat exchange pipes 700, and the multiple heat exchange pipes 700 are arranged at intervals along the first direction x in the heat exchange area 120. One end of each heat exchange pipe 700 along the second direction y is communicated with the first shunt pipe 810, and the other end of each heat exchange pipe 700 along the second direction y is communicated with the second shunt pipe 820.

[0060] In this embodiment, the cooling medium can be evenly shunted into the multiple heat exchange pipes 700 through the first shunt pipe 810, and the cooling medium in the multiple heat exchange pipes 700 can flow to the cooling medium outlet 180 via the second shunt pipe 820, so as to realize the circulating flow of the cooling medium in the multiple heat exchange pipes 700. Since the multiple heat exchange pipes 700 are arranged at intervals along the first direction x in the heat exchange area 120, in this way, the possibility of steam contacting the heat exchange pipes 700 in the heat exchange area 120 can be increased, thereby improving the heat exchange efficiency of the steam in the heat exchange area 120 and thus improving the liquefaction efficiency of the steam.

[0061] Among them, Figure 3 The path indicated by the arrow in the middle tank body 100 is the flow path of the cooling medium in the tank body 100.

[0062] Referring to Figure 2 and Figure 3 As shown in the figure, the heat exchange and flash evaporation device further includes multiple second flow disturbing members 910 and multiple third flow disturbing members 920. Both the second flow disturbing members 910 and the third flow disturbing members 920 extend along the first direction x and are arranged in the heat exchange area 120. The multiple second flow disturbing members 910 and the multiple third flow disturbing members 920 are arranged alternately and at intervals along the second direction y, and each second flow disturbing member 910 is arranged at an interval from one end of the heat exchange area 120 along the first direction x in the front, and each third flow disturbing member 920 is arranged at an interval from one end of the heat exchange area 120 along the first direction x in the back; among them, at least part of the heat exchange pipes 700 penetrate through each second flow disturbing member 910 along the second direction y, and at least part of the heat exchange pipes 700 penetrate through each third flow disturbing member 920 along the second direction y.

[0063] Specifically, in this embodiment, each second flow disturbing member 910 and each third flow disturbing member 920 are both located between the first avoidance port 410 and the air outlet 150, so that the steam can flow through each second flow disturbing member 910 and each third flow disturbing member 920 during the process of flowing from the first avoidance port 410 to the air outlet 150, thereby improving the disturbing ability of the steam in the heat exchange area 120.

[0064] In this embodiment, since both the second spoiler 910 and the third spoiler 920 extend along the first direction x, and the plurality of second spoilers 910 and the plurality of third spoilers 920 are staggered and spaced along the second direction y. Thus, when the steam enters the heat exchange area 120, the flow path of the steam between the plurality of second spoilers 910 and the plurality of third spoilers 920 forms an S-shaped flow path. In this way, the flow path and the flow time of the steam in the heat exchange area 120 can be extended by the plurality of second spoilers 910 and the plurality of third spoilers 920, so as to further increase the contact area between the steam and the heat exchange tubes 700, and at the same time increase the heat exchange time of the steam in the heat exchange area 120. Also, since at least part of the heat exchange tubes 700 penetrate each second spoiler 910 along the second direction y, and at least part of the heat exchange tubes 700 penetrate each third spoiler 920 along the second direction y. Thus, when the steam flows in the S-shaped flow path, it can contact at least one heat exchange tube 700 everywhere, so as to further increase the contact area between the steam and the heat exchange tubes 700 and the heat exchange time of the steam, thereby improving the liquefaction efficiency of the steam.

[0065] Specifically, in this embodiment, the second spoiler 910 and the third spoiler 920 at least partially overlap in the first direction x, so that the flow path of the steam between the plurality of second spoilers 910 and the plurality of third spoilers 920 forms an S-shaped flow path.

[0066] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0067] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present application. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present application.

Claims

1. A heat exchange flash evaporation device, characterized in that: include: A tank body, provided with a flash zone and a heat exchange zone, the flash zone is connected to the heat exchange zone, and the heat exchange zone is arranged in front of the flash zone along a first direction, the tank body is also provided with a gas-liquid mixture inlet, a liquid discharge port and a gas outlet, the gas-liquid mixture inlet and the liquid discharge port are both connected to the flash zone and are both arranged behind the flash zone along the first direction, and the gas-liquid mixture inlet and the liquid discharge port are arranged at intervals, the gas outlet is connected to the heat exchange zone and is arranged in front of the heat exchange zone along the first direction, and the tank body is used for steam to flow from the flash zone to the heat exchange zone along the first direction in the tank body; The heat exchange flash evaporation device further includes an air bleed pipe, which is arranged in the flash evaporation zone and extends along the first direction, wherein one end of the air bleed pipe at the rear along the first direction is communicated with the gas-liquid mixture inlet, and one end of the air bleed pipe at the front along the first direction is communicated with the heat exchange zone; The heat exchange flash evaporation device further includes a drain pipe, which is arranged in the flash evaporation zone and extends along the first direction, and one end of the drain pipe in front of the first direction is connected to one end of the air duct in the rear of the first direction, and one end of the drain pipe in the rear of the first direction is connected to the drain port; The heat exchange flash device further includes a first baffle and a second baffle, the first baffle and the second baffle are both arranged in the tank body and are arranged at intervals, and the first baffle is arranged behind the heat exchange zone along the first direction, and the second baffle is arranged in front of the flash zone along the first direction, so as to separate a gas-liquid separation zone between the heat exchange zone and the flash zone, and the heat exchange zone and the flash zone are both connected to the gas-liquid separation zone; The heat exchange flash evaporation device further comprises a plurality of first spoilers, which are arranged in the gas-liquid separation zone at intervals along a second direction; wherein the second direction is perpendicular to the first direction; The first spoiler has a guide portion and a first spoiler, the guide portion is extended along the first direction, both ends of the first spoiler along the first direction have the guide portion, at least one first spoiler is connected between the two guide portions, and each of the first spoilers protrudes from the guide portion along the second direction; The first spoiler also has a second spoiler portion, which is arranged between the two guide portions and protrudes from the guide portion along the second direction in a direction opposite to the first spoiler portion. Between any two of the first spoilers, the second spoiler portion of one of the first spoilers is spaced apart from the first spoiler portion of the other first spoiler along the second direction to separate a flow channel for steam to pass through between the two first spoilers.

2. The heat exchange flash evaporation device according to claim 1, characterized in that: The first partition is provided with a first avoidance port, the second partition is provided with a second avoidance port, the heat exchange area is connected with the gas-liquid separation area through the first avoidance port, and the air duct is connected with the gas-liquid separation area through the second avoidance port.

3. The heat exchange flash evaporation device according to any one of claims 1 to 2, characterized in that: The tank body is also provided with a cooling medium inlet and a cooling medium outlet, and the cooling medium inlet and the cooling medium outlet are respectively arranged at two ends of the heat exchange zone along the second direction. The heat exchange flash evaporation device also includes a heat exchange pipe, which is arranged in the heat exchange zone and extends along the second direction, and the two ends of the heat exchange pipe along the second direction are respectively connected with the cooling medium inlet and the cooling medium outlet.

4. The heat exchange flash evaporation device according to claim 3, characterized in that: The heat exchange flash device also includes a first diverter pipe and a second diverter pipe. The first diverter pipe and the second diverter pipe are both arranged in the heat exchange zone and are both extended along the first direction. The first diverter pipe is connected to the cooling medium inlet, and the second diverter pipe is connected to the cooling medium outlet. There are multiple heat exchange pipes, and the multiple heat exchange pipes are arranged in the heat exchange zone at intervals along the first direction. One end of each heat exchange pipe along the second direction is connected to the first diverter pipe, and the other end of each heat exchange pipe along the second direction is connected to the second diverter pipe.

5. The heat exchange flash evaporation device according to claim 4, characterized in that: The heat exchange flash evaporation device further includes a plurality of second spoilers and a plurality of third spoilers, the second spoilers and the third spoilers are both extended along the first direction and are both arranged in the heat exchange zone, the plurality of second spoilers and the plurality of third spoilers are staggered and spaced along the second direction, and each of the second spoilers is spaced from a front end of the heat exchange zone along the first direction, and each of the third spoilers is spaced from a rear end of the heat exchange zone along the first direction; Wherein, at least part of the heat exchange tubes are arranged through each of the second spoilers along the second direction, and at least part of the heat exchange tubes are arranged through each of the third spoilers along the second direction.

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