Heat exchange flash evaporation device

Abstract

The invention discloses a heat exchange flash evaporation device, and relates to the technical field of evaporation heat exchange, and the heat exchange flash evaporation device comprises 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, the heat exchange area is arranged in front of the flash evaporation area in the first direction, the tank body is further provided with a gas-liquid mixture inlet, a liquid outlet and a gas outlet, and the gas-liquid mixture inlet and the liquid outlet are both communicated with the flash evaporation area and are both arranged behind the flash evaporation area in the first direction; the gas-liquid mixture inlet and the liquid outlet are arranged at an interval, the gas outlet is communicated with the heat exchange area and arranged in front of the heat exchange area in the first direction, and the tank body is used for allowing steam to flow from the flash evaporation area to the heat exchange area in the tank body in the first direction. According to the heat exchange flash evaporation device, the recovery rate of a high-temperature and high-pressure gas-liquid mixture can be increased.

Description

Technical Field

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

[0002] Steam rotary dryer is used to dry mineral powder by heating. The heat exchange system of steam rotary dryer and the condensation system of post-process condenser are important links in steam recovery. In the process of steam recovery, 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 so that it can enter the boiler circulation system again. However, in actual operation, a large amount of high-temperature and high-pressure gas-liquid mixture cannot 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 to 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 objectives, the technical solutions adopted in this application are as follows: The present application provides a heat exchange flash evaporation device, comprising: A tank body is 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 drain port and an air outlet, the gas-liquid mixture inlet and the drain 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 drain port are spaced apart, the air 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.

[0005] In an optional embodiment, the heat exchange flash evaporation device also includes an air bleed pipe, which is arranged in the flash evaporation zone and extends along the first direction, and the rear end of the air bleed pipe along the first direction is connected to the gas-liquid mixture inlet, and the front end of the air bleed pipe along the first direction is connected to the heat exchange zone.

[0006] In an optional embodiment, the heat exchange flash evaporation device also 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.

[0007] In an optional embodiment, the heat exchange flash evaporation device also includes a first partition and a second partition, the first partition and the second partition are both arranged in the tank body and are spaced apart, and the first partition is arranged behind the heat exchange zone along the first direction, and the second partition is arranged in front of the flash evaporation zone along the first direction to separate a gas-liquid separation zone between the heat exchange zone and the flash evaporation zone, and the heat exchange zone and the flash evaporation zone are both connected to the gas-liquid separation zone.

[0008] In an optional embodiment, the first partition is provided with a first avoidance port, the second partition is provided with a second avoidance port, the heat exchange zone is connected with the gas-liquid separation zone through the first avoidance port, and the air duct is connected with the gas-liquid separation zone through the second avoidance port.

[0009] In an optional embodiment, the heat exchange flash evaporation device further comprises a plurality of first spoilers, and the plurality of first spoilers are arranged in the gas-liquid separation zone at intervals along the second direction; The second direction is perpendicular to the first direction.

[0010] In an optional embodiment, the first spoiler has a guide portion and a first spoiler, the guide portion is extended along the first direction, the first spoiler has the guide portion at both ends along the first direction, at least one first spoiler is connected between the two guide portions, and each first spoiler protrudes from the guide portion along the second direction.

[0011] In an optional 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 arranged at two ends of the heat exchange zone along the second direction, the heat exchange flash evaporation device further comprises a heat exchange tube, the heat exchange tube is arranged in the heat exchange zone and extends along the second direction, and the two ends of the heat exchange tube along the second direction are respectively connected with the cooling medium inlet and the cooling medium outlet; The second direction is perpendicular to the first direction.

[0012] In an optional embodiment, the heat exchange flash evaporation 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 tubes, and the multiple heat exchange tubes are arranged in the heat exchange zone at intervals along the first direction, one end of each heat exchange tube along the second direction is connected to the first diverter pipe, and the other end of each heat exchange tube along the second direction is connected to the second diverter pipe.

[0013] In an optional embodiment, the heat exchange flash 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.

[0014] The heat exchange flash evaporation device of the present application has the following advantages: In the heat exchange flash evaporation device of the present application, a high-temperature and high-pressure gas-liquid mixture can enter the flash evaporation zone through the gas-liquid mixture inlet, so that part of the liquid water in the gas-liquid mixture is converted 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 zone can flow from the flash evaporation zone to the heat exchange zone along a first direction to perform heat exchange in the heat exchange zone. Since the steam is cooled down during the flash evaporation, the lower temperature steam can reduce the impact on the heat exchange effect of the heat exchange zone, so that the heat exchange efficiency of the steam in the heat exchange zone is improved, thereby allowing more steam to be effectively cooled and converted into liquid water in the heat exchange zone. At the same time, the cooled liquid water and the unvaporized liquid water in the flash evaporation zone can flow in the tank body in a direction opposite to the first direction and be discharged out of the tank body through the drain 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. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 The structure diagram of the heat exchange flash evaporation device in this application is shown Figure 1 ; Figure 2 The structure diagram of the heat exchange flash evaporation device in this application is shown Figure 2 ; Figure 3 A schematic diagram of the structure of the heat exchange tube, the second spoiler and the third spoiler in the present application is shown; Figure 4 A schematic structural diagram of the first spoiler in the present application is shown.

[0017] Description of main component symbols: 100-tank body; 110-flash zone; 120-heat exchange zone; 130-gas-liquid mixture inlet; 140-liquid discharge port; 150-gas outlet; 160-gas-liquid separation zone; 170-cooling medium inlet; 180-cooling medium outlet; 200-air duct; 300-liquid discharge pipe; 310-liquid inlet; 400-first baffle; 410-first avoidance port; 500-second baffle; 510-second avoidance port; 600-first spoiler; 610-flow guide; 620-first spoiler; 630-second spoiler; 700-heat exchange tube; 810-first shunt pipe; 820-second shunt pipe; 910-second spoiler; 920-third spoiler; x - first direction; y - second direction. DETAILED DESCRIPTION

[0018] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0019] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0020] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0021] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0022] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0023] Reference Figure 1 as well as Figure 2 As shown, the heat exchange flash evaporation device involved in the embodiment of the present application includes: a tank body 100.

[0024] Specifically, the tank body 100 is provided with a flash zone 110 and a heat exchange zone 120, the flash zone 110 is connected to the heat exchange zone 120, and the heat exchange zone 120 is arranged in front of the flash zone 110 along the first direction x, the tank body 100 is also provided with a gas-liquid mixture inlet 130, a drain port 140 and a gas outlet 150, the gas-liquid mixture inlet 130 and the drain port 140 are both connected to the flash zone 110, and are both arranged behind the flash zone 110 along the first direction x, and the gas-liquid mixture inlet 130 and the drain port 140 are spaced apart, the gas outlet 150 is connected to the heat exchange zone 120, and is arranged in front of the heat exchange zone 120 along the first direction x, and the tank body 100 is used to supply steam to flow from the flash zone 110 to the heat exchange zone 120 along the first direction x in the tank body 100.

[0025] It should be noted that the first direction x is Figure 1 The direction that x points to.

[0026] It should be noted that the principle of flash evaporation is to use the difference in saturated vapor pressure of substances at different temperatures to turn liquid water in the gas-liquid mixture into water vapor by reducing the pressure. At the same time, high-pressure liquid water will release a large amount of evaporation enthalpy in the process of turning into water vapor at low pressure. This part of the evaporating enthalpy will continue to exchange heat with liquid water, causing more liquid water to turn into water vapor.

[0027] In the heat exchange flash device of the present application, the high-temperature and high-pressure gas-liquid mixture can enter the flash zone 110 through the gas-liquid mixture inlet 130, so that part of the liquid water in the gas-liquid mixture is converted into steam under the flash evaporation effect, and the temperature and pressure of the steam are reduced under the flash evaporation effect. Further, the low-temperature and low-pressure steam in the flash zone 110 can flow from the flash zone 110 to the heat exchange zone 120 along the first direction x to perform heat exchange in the heat exchange zone 120. Since the steam is cooled down under the flash evaporation effect, the lower temperature steam can reduce the impact on the heat exchange zone 120. 20 is affected by the heat exchange effect, so that the heat exchange efficiency of the steam in the heat exchange zone 120 is improved, so that more steam can be effectively cooled in the heat exchange zone 120 and converted into liquid water. At the same time, the cooled liquid water and the unvaporized liquid water in the flash evaporation zone 110 can flow in the tank body 100 in the direction opposite to the first direction x, and be discharged from the tank body 100 through the drain 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.

[0028] in, 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 The path indicated by the arrow in the middle tank body 100 is the flow path of the liquid water in the tank body 100 .

[0029] Continue to refer to Figure 1 as well as Figure 2 As shown, the heat exchange flash evaporation device also includes an air bleed pipe 200, which is arranged in the flash evaporation zone 110 and extends along the first direction x. The rear end of the air bleed pipe 200 along the first direction x is connected to the gas-liquid mixture inlet 130, and the front end of the air bleed pipe 200 along the first direction x is connected to the heat exchange zone 120.

[0030] In this embodiment, after the gas-liquid mixture enters the flash zone 110 for flash evaporation, the steam will be squeezed into the air duct 200 by the pressure difference between the inside and outside of the tank body 100. At the same time, the steam will flow in the air duct 200 along the first direction x due to the pressure difference, and form a low-pressure area in the air duct 200, so that a continuous stream of steam will flow through the air duct 200 along the first direction x. Furthermore, when the steam flows in the air duct 200, the turbulence of the steam flow can be reduced, thereby increasing the flow rate of the steam.

[0031] Continue to refer to Figure 1 as well as Figure 2As shown, the heat exchange flash evaporation device also includes a drain pipe 300, which is arranged in the flash evaporation zone 110 and extends along the first direction x, and one end of the drain pipe 300 in front of the first direction x is connected to one end of the air duct 200 in the rear of the first direction x, and one end of the drain pipe 300 in the rear of the first direction x is connected to the drain port 140.

[0032] In this embodiment, after the gas-liquid mixture enters the flash zone 110, part of the gas-liquid mixture will be squeezed into the drain pipe 300 by the pressure difference between the inside and outside of the tank body 100, and flash evaporates in the drain pipe 300. After the gas-liquid mixture flashes in the drain pipe 300, the steam will flow from the drain pipe 300 to the air duct 200 along the first direction x and enter the heat exchange zone 120. The liquid water will flow in the drain pipe 300 to the drain port 140 in the opposite direction of the first direction x to achieve the recovery of this part of the liquid water.

[0033] Specifically, refer to Figure 2 As shown, in the present embodiment, the liquid discharge pipe 300 is provided with a liquid inlet 310, and the liquid inlet 310 is arranged close to the liquid discharge port 140, that is, the liquid inlet 310 is arranged at the rear of the liquid discharge pipe 300 along the first direction x. When the gas-liquid mixture is flashed in the flash zone 110, part of the liquid water that is not converted into steam will fall to the bottom of the flash zone 110 in the opposite direction of the first direction x. As the content of liquid water gradually increases, the liquid water at the bottom of the flash zone 110 can enter the liquid discharge pipe 300 through the liquid inlet 310, so as to be discharged from the tank body 100 through the liquid discharge port 140, thereby realizing the recovery of this part of liquid water.

[0034] Reference Figure 1 as well as Figure 2 As shown, the heat exchange flash evaporation device also includes a first baffle 400 and a second baffle 500. The first baffle 400 and the second baffle 500 are both arranged in the tank body 100 and are arranged at intervals. The first baffle 400 is arranged behind the heat exchange zone 120 along the first direction x, and the second baffle 500 is arranged in front of the flash evaporation zone 110 along the first direction x, so as to separate a gas-liquid separation zone 160 between the heat exchange zone 120 and the flash evaporation zone 110, and the heat exchange zone 120 and the flash evaporation zone 110 are both connected to the gas-liquid separation zone 160.

[0035] In this embodiment, before the steam enters the heat exchange zone 120 from the flash zone 110 along the first direction x, the steam will first pass through the gas-liquid separation zone 160 to perform 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 drain port 140, while the steam continues to flow along the first direction x into the heat exchange zone 120 to achieve the recovery of part of the liquid water.

[0036] Continue to refer to Figure 1 as well as Figure 2 As shown, the first partition 400 is provided with a first avoidance port 410 , the second partition 500 is provided with a second avoidance port 510 , the heat exchange area 120 is connected with the gas-liquid separation area 160 through the first avoidance port 410 , and the air duct 200 is connected with the gas-liquid separation area 160 through the second avoidance port 510 .

[0037] In this embodiment, before the steam enters the heat exchange zone 120 from the flash zone 110 along the first direction x, the steam will first pass through the gas-liquid separation zone 160 to perform preliminary gas-liquid separation in the gas-liquid separation. After the preliminary gas-liquid separation, the liquid water will enter the air duct 200 through the second avoidance port 510, and have the effect of cooling the steam in the air duct 200 again, so as 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 duct 200 to the drain pipe 300 in the opposite direction of the first direction x, and finally be discharged from the drain port 140 to realize the recovery of part of the liquid water, while the steam will flow to the heat exchange zone 120 through the first avoidance port 410, and perform heat exchange and liquefaction in the heat exchange zone 120.

[0038] Continue to refer to Figure 1 as well as Figure 2 As shown, the heat exchange flash evaporation device further includes a plurality of first spoilers 600, which are arranged in the gas-liquid separation zone 160 at intervals along the second direction y; wherein the second direction y is perpendicular to the first direction x.

[0039] It should be noted that the second direction y is Figure 1 The direction that y points to.

[0040] In this embodiment, since the plurality of first spoilers 600 are arranged at intervals along the second direction y in the gas-liquid separation zone 160, when the steam flows through the gas-liquid separation zone 160, the steam will contact the plurality of first spoilers 600, so that the steam is cooled down again through the contact between the steam and the first spoilers 600, thereby further reducing the influence of the steam entering the heat exchange zone 120 on the heat exchange efficiency. At the same time, part of the steam can be liquefied in the process of contacting with the first spoilers 600, so as to further improve the liquefaction rate of the steam. Furthermore, the liquefied liquid water will enter the flash zone 110 and cool down the steam in the flash zone 110 again, so as to liquefy part of the steam in advance, thereby further improving the liquefaction efficiency of the steam.

[0041] Reference Figure 4As shown, the first spoiler 600 has a guide portion 610 and a first spoiler 620. The guide portion 610 is extended along the first direction x. The first spoiler 600 has guide portions 610 at both ends along the first direction x. At least one first spoiler 620 is connected between the two guide portions 610. Each first spoiler 620 protrudes from the guide portion 610 along the second direction y.

[0042] In this embodiment, since the guide portion 610 is extended along the first direction x, and the first spoiler 600 has the guide portion 610 at both ends along the first direction x, the guide portion 610 can guide the steam from the flash zone 110 to the heat exchange zone 120. At the same time, since at least one first spoiler 620 is connected between the two guide portions 610, each first spoiler 620 protrudes from the guide portion 610 along the second direction y. In this way, when the steam flows between any two first spoilers 600 along the first direction x, the steam will contact any one of the first spoilers 620, so that part of the steam is liquefied in the process of contacting the first spoiler 620. At the same time, the steam will be disrupted by the first spoiler 620 when flowing through the first spoiler 620, so that the steam is in a turbulent state, thereby increasing the possibility of the steam contacting the first spoiler 620 and improving the gas-liquid separation rate of the steam in the gas-liquid separation zone 160.

[0043] Specifically, refer to Figure 4 As shown, in the present embodiment, the first spoiler 600 further includes a second spoiler 630, which is disposed between the two guide portions 610, and the second spoiler 630 protrudes from the guide portion 610 along the second direction y in a direction opposite to the first spoiler 620. Between any two first spoilers 600, the second spoiler 630 of one first spoiler 600 and the first spoiler 620 of the other first spoiler 600 are spaced apart along the second direction y to separate a flow channel for steam to pass through between the two first spoilers 600. In this way, when steam flows between any two first spoilers 600 along the first direction x, part of the steam can contact the first spoiler 620, and another part of the steam can contact the second spoiler 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.

[0044] Reference Figure 3 As shown, the tank body 100 is also provided with a cooling medium inlet 170 and a cooling medium outlet 180, and the cooling medium inlet 170 and the cooling medium outlet 180 are respectively arranged at the two ends of the heat exchange zone 120 along the second direction y. The heat exchange flash evaporation device also includes a heat exchange pipe 700, which is arranged in the heat exchange zone 120 and extends along the second direction y, and the two ends of the heat exchange pipe 700 along the second direction y are respectively connected to the cooling medium inlet 170 and the cooling medium outlet 180.

[0045] In this embodiment, since the cooling medium inlet 170 and the cooling medium outlet 180 are respectively arranged at the two ends of the heat exchange zone 120 along the second direction y, the two ends of the heat exchange tube 700 along the second direction y are respectively connected to the cooling medium inlet 170 and the cooling medium outlet 180, so that the cooling medium can flow along the second direction y in the heat exchange zone 120. In this way, the steam at various locations in the heat exchange zone 120 can 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.

[0046] Specifically, in this embodiment, the cooling medium is cooling water.

[0047] Continue to refer to Figure 3 As shown, the heat exchange flash device also includes a first branch pipe 810 and a second branch pipe 820. The first branch pipe 810 and the second branch pipe 820 are both arranged in the heat exchange zone 120 and are both extended along the first direction x. The first branch pipe 810 is connected to the cooling medium inlet 170, and the second branch pipe 820 is connected to the cooling medium outlet 180. There are multiple heat exchange pipes 700, and the multiple heat exchange pipes 700 are arranged in the heat exchange zone 120 at intervals along the first direction x. One end of each heat exchange pipe 700 along the second direction y is connected to the first branch pipe 810, and the other end of each heat exchange pipe 700 along the second direction y is connected to the second branch pipe 820.

[0048] In this embodiment, the cooling medium can be evenly diverted into multiple heat exchange tubes 700 through the first diverter pipe 810, and the cooling medium in the multiple heat exchange tubes 700 can flow to the cooling medium outlet 180 via the second diverter pipe 820 to realize the circulation of the cooling medium in the multiple heat exchange tubes 700. Since the multiple heat exchange tubes 700 are arranged in the heat exchange zone 120 at intervals along the first direction x, the possibility of steam contacting the heat exchange tubes 700 in the heat exchange zone 120 can be increased, thereby improving the heat exchange efficiency of the steam in the heat exchange zone 120, thereby improving the liquefaction efficiency of the steam.

[0049] in, Figure 3 The path indicated by the arrow in the tank body 100 is the flow path of the cooling medium in the tank body 100 .

[0050] Reference Figure 2 as well as Figure 3As shown, the heat exchange flash device also includes a plurality of second spoilers 910 and a plurality of third spoilers 920, the second spoilers 910 and the third spoilers 920 are both extended along the first direction x and are both arranged in the heat exchange zone 120, the plurality of second spoilers 910 and the plurality of third spoilers 920 are staggered and spaced along the second direction y, and each second spoiler 910 is spaced from an end in front of the heat exchange zone 120 along the first direction x, and each third spoiler 920 is spaced from an end in rear of the heat exchange zone 120 along the first direction x; wherein, at least part of the heat exchange tubes 700 are passed through each second spoiler 910 along the second direction y, and at least part of the heat exchange tubes 700 are passed through each third spoiler 920 along the second direction y.

[0051] Specifically, in this embodiment, each second spoiler 910 and each third spoiler 920 are located between the first avoidance port 410 and the air outlet 150, so that the steam can flow through each second spoiler 910 and each third spoiler 920 in the process of flowing from the first avoidance port 410 to the air outlet 150, thereby improving the disturbance capacity of the steam in the heat exchange zone 120.

[0052] In this embodiment, since the second spoiler 910 and the third spoiler 920 are both extended along the first direction x, 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 zone 120, the flow path of the steam between the plurality of second spoilers 910 and the plurality of third spoilers 920 can be an S-shaped flow path. Thus, the flow path and flow time of the steam in the heat exchange zone 120 can be extended by the plurality of second spoilers 910 and the plurality of third spoilers 920. Thereby, the contact area between the steam and the heat exchange tube 700 is further increased, and at the same time, the heat exchange time of the steam in the heat exchange zone 120 is increased. Moreover, since at least part of the heat exchange tube 700 is arranged in each second spoiler 910 along the second direction y, and at least part of the heat exchange tube 700 is arranged in each third spoiler 920 along the second direction y, when the steam flows in the S-shaped flow path, it can contact with at least one heat exchange tube 700 at each location, thereby further increasing the contact area between the steam and the heat exchange tube 700 and the heat exchange time of the steam, thereby improving the liquefaction efficiency of the steam.

[0053] Specifically, in this embodiment, the second spoilers 910 and the third spoilers 920 at least partially overlap in the first direction x, so that the flow path of steam between the plurality of second spoilers 910 and the plurality of third spoilers 920 is an S-shaped flow path.

[0054] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction 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 may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0055] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify 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 is 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 drain port and an air outlet, the gas-liquid mixture inlet and the drain 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 drain port are spaced apart, the air 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.

2. The heat exchange flash evaporation device according to claim 1, characterized in that: The heat exchange flash evaporation device also includes an air bleed pipe, which is arranged in the flash evaporation zone and extends along the first direction. The rear end of the air bleed pipe along the first direction is connected to the gas-liquid mixture inlet, and the front end of the air bleed pipe along the first direction is connected to the heat exchange zone.

3. The heat exchange flash evaporation device according to claim 2, characterized in that: The heat exchange flash evaporation device also 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.

4. The heat exchange flash evaporation device according to claim 2, characterized in that: The heat exchange flash evaporation device also includes a first partition and a second partition, the first partition and the second partition are both arranged in the tank body and are arranged at intervals, and the first partition is arranged behind the heat exchange zone along the first direction, and the second partition is arranged in front of the flash evaporation zone along the first direction to separate a gas-liquid separation zone between the heat exchange zone and the flash evaporation zone, and the heat exchange zone and the flash evaporation zone are both connected to the gas-liquid separation zone.

5. The heat exchange flash evaporation device according to claim 4, 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.

6. The heat exchange flash evaporation device according to claim 4, characterized in that: The heat exchange flash evaporation device further comprises a plurality of first spoilers, wherein the plurality of first spoilers are arranged in the gas-liquid separation zone at intervals along the second direction; The second direction is perpendicular to the first direction.

7. The heat exchange flash evaporation device according to claim 6, characterized in that: The first spoiler has a guide portion and a first spoiler, the guide portion is extended along the first direction, the first spoiler has the guide portion at both ends along the first direction, 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.

8. The heat exchange flash evaporation device according to any one of claims 1 to 7, characterized in that: 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 arranged at two ends of the heat exchange zone along the second direction, the heat exchange flash evaporation device further comprises a heat exchange tube, the heat exchange tube is arranged in the heat exchange zone and extends along the second direction, and the two ends of the heat exchange tube along the second direction are respectively connected with the cooling medium inlet and the cooling medium outlet; The second direction is perpendicular to the first direction.

9. The heat exchange flash evaporation device according to claim 8, 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.

10. The heat exchange flash evaporation device according to claim 9, 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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