Air suction liquid carrying prevention device for flooded evaporator, flooded evaporator and heating and ventilation equipment

Abstract

The utility model discloses an air suction anti-liquid-carrying device for flooded evaporator, flooded evaporator and heating and ventilation equipment, the air suction anti-liquid-carrying device comprises a shell, the shell is provided with a cavity, an air inlet and an air outlet, the cavity is divided into a lower cavity and an upper cavity, the lower cavity is communicated with the upper cavity, the air inlet is arranged on the side wall of the lower cavity, and the air outlet is arranged on the wall of the upper cavity. According to the air suction liquid carrying prevention device, after steam carrying liquid drops makes contact with the shell of the air suction liquid carrying prevention device, steam flow enters the lower cavity from the air inlet formed in the side wall of the lower cavity, flows to the upper cavity and then leaves the cavity from the air outlet formed in the wall of the upper cavity; in the process that steam flow enters the cavity and leaves the cavity, the steam flow is baffled for multiple times due to blocking of the wall of the shell, the movement direction of the steam flow is changed, liquid drops continue to keep the original movement direction due to inertial capture, the liquid drops are attached to the side wall in the shell, and therefore separation of the liquid drops and the steam is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of refrigeration, and particularly to a liquid entrainment prevention device for suction of a flooded evaporator, a flooded evaporator and a heating, ventilation and air conditioning (HVAC) equipment. Background Art

[0002] In the related art, in a flooded evaporator, due to liquid entrainment in suction, the vapor flow brings liquid refrigerant or refrigerant into the compressor, resulting in abnormal operation of the compressor. Therefore, it is necessary to separate the liquid droplets in the evaporation gas to prevent liquid entrainment in suction. Summary of the Utility Model

[0003] An object of the present utility model is to provide a liquid entrainment prevention device for suction of a flooded evaporator, which can separate the liquid droplets carried in the vapor flow and prevent liquid entrainment in suction.

[0004] Another object of the present utility model is to provide a flooded evaporator, which includes a tank body having an air outlet and the above-mentioned liquid entrainment prevention device for suction of a flooded evaporator.

[0005] Still another object of the present utility model is to provide an HVAC equipment, which includes the above-mentioned liquid entrainment prevention device for suction of a flooded evaporator and the above-mentioned flooded evaporator.

[0006] According to the liquid entrainment prevention device for suction of the present utility model, the liquid entrainment prevention device for suction includes a housing, the housing has a cavity, an air inlet and an air outlet, the cavity is divided into a lower cavity and an upper cavity, the lower cavity and the upper cavity are communicated, the air inlet is arranged on the side wall of the lower cavity, and the air outlet is arranged on the wall of the upper cavity.

[0007] According to the liquid entrainment prevention device for suction of a flooded evaporator of the present utility model, after the vapor carrying liquid droplets contacts the housing of the liquid entrainment prevention device for suction, the vapor flow first enters the lower cavity from the air inlet arranged on the side wall of the lower cavity, flows through the upper cavity and then leaves the cavity from the air outlet arranged on the wall of the upper cavity. During the process of the vapor flow entering and leaving the cavity, due to being blocked by the wall of the housing, the vapor flow undergoes multiple bends and changes the direction of the air flow. However, the liquid droplets will continue to maintain their original direction of motion due to inertial capture, so that the liquid droplets adhere to the side wall inside the housing, thereby realizing the separation of the liquid droplets and the vapor.

[0008] In addition, according to the liquid entrainment prevention device for suction of a flooded evaporator of the above embodiment of the present utility model, the following additional technical features may also be provided:

[0009] In some embodiments, the lower cavity has a first part and a second part along the air inlet direction of the air inlet, the first part communicates the air inlet and the second part and is separated from the upper cavity, and the second part communicates the upper cavity.

[0010] In some embodiments, the bottom wall of the lower chamber is a non-porous plate.

[0011] In some embodiments, the air outlet includes a first air outlet provided on the side wall of the upper chamber. The upper chamber has a third part and a fourth part along the air outlet direction of the first air outlet. The third part connects the first air outlet and the fourth part and is separated from the lower chamber, and the fourth part is connected to the lower chamber.

[0012] In some embodiments, the suction anti-liquid-carrying device further includes a partition plate, which is provided in the housing and partially separates the side part of the upper chamber and the side part of the lower chamber.

[0013] In some embodiments, the air outlet further includes a second air outlet provided on the top wall of the upper chamber. The top wall of the upper chamber includes a non-porous area and a porous area. The non-porous area is used to face the suction port of the flooded evaporator, and the second air outlet is provided in the porous area.

[0014] In some embodiments, the distribution density of the second air outlets near the non-porous area is less than the distribution density of the second air outlets far from the non-porous area.

[0015] In some embodiments, the distribution density of the air outlets of the upper chamber near the suction port of the flooded evaporator is less than the distribution density of the air outlets far from the suction port of the flooded evaporator.

[0016] In some embodiments, the upper chamber has a first area and a second area. The second area is farther from the suction port of the flooded evaporator than the first area. The distance L1 between adjacent air outlets in the first area is greater than the distance L2 between adjacent air outlets in the second area.

[0017] In some embodiments, the ratio of the distance L1 to the aperture diameter of the air outlet is not less than 1 and not greater than 5, and the ratio of the distance L2 to the aperture diameter of the air outlet is not less than 1 and not greater than 3.

[0018] In some embodiments, the housing includes a first plate body and a second plate body. The first plate body and the second plate body extend in the left-right direction and are joined in the up-down direction. The cavity is formed between the first plate body and the second plate body. The lower chamber is formed in the first plate body, and the upper chamber is formed in the second plate body.

[0019] In some embodiments, the width dimension of the cross-section of the first plate body is greater than the width dimension of the cross-section of the second plate body.

[0020] In some embodiments, the first plate body includes a bottom plate, a first side plate, and a second side plate. The first side plate and the second side plate are respectively connected to two side edges of the bottom plate. The second plate body includes a top plate, a third side plate, and a fourth side plate. The third side plate and the fourth side plate are respectively connected to two side edges of the top plate. The projections of the third side plate and the fourth side plate on the bottom plate fall between the first side plate and the second side plate.

[0021] In some embodiments, the first plate body further includes a first extension plate and a second extension plate. The first extension plate is connected to the first side plate and extends outward from the cavity. The second extension plate is connected to the second side plate and extends outward from the cavity. The second plate body further includes a third extension plate and a fourth extension plate. The third extension plate is connected to the third side plate and extends outward from the cavity. The fourth extension plate is connected to the fourth side plate and extends outward from the cavity. The first extension plate and the third extension plate are stacked, and the second extension plate and the fourth extension plate are stacked.

[0022] In some embodiments, the second plate body further includes a third extension plate and a fourth extension plate. The third extension plate is connected to the third side plate and extends outward from the cavity. The fourth extension plate is connected to the fourth side plate and extends outward from the cavity. The first side plate is opposite to the third extension plate, and the second side plate is opposite to the fourth extension plate.

[0023] In some embodiments, the first plate body is integrally formed.

[0024] In some embodiments, the second plate body is integrally formed.

[0025] In some embodiments, the first plate body and the second plate body are integrally formed or welded.

[0026] In some embodiments, the housing further includes a first end plate and a second end plate. The first end plate is connected to the left ends of the first plate body and the second plate body. The second end plate is connected to the right ends of the first plate body and the second plate body. The first end plate and the second end plate seal the cavity.

[0027] In some embodiments, there is a gap between the first end plate and the edge of the first plate body; or, there is a gap between the second end plate and the edge of the first plate body; there is a gap between the first end plate and the edge of the second plate body; or, there is a gap between the second end plate and the edge of the second plate body.

[0028] The flooded evaporator according to an embodiment of the present utility model includes a tank body having a suction port and the above-mentioned suction anti-liquid-carrying device for the flooded evaporator. The suction anti-liquid-carrying device divides a heat exchange area and an exhaust area in the tank body. The air inlet communicates with the heat exchange area, and the air outlet communicates with the exhaust area.

[0029] In some embodiments, the tank body is welded to the suction anti-liquid-carrying device; and / or, there is a gap between the suction anti-liquid-carrying device and the tank body. Description of the Drawings

[0030] Figure 1 It is a schematic diagram of the housing of an embodiment of the present utility model in one direction.

[0031] Figure 2 It is a schematic diagram of the housing of an embodiment of the present utility model in another direction.

[0032] Figure 3 It is a three-dimensional schematic diagram of the housing of an embodiment of the present utility model.

[0033] Figure 4 It is a schematic diagram of the upper cavity of an embodiment of the present utility model in one direction.

[0034] Figure 5 It is a schematic diagram of the upper cavity of an embodiment of the present utility model in another direction.

[0035] Figure 6 It is a schematic structural diagram of the housing of an embodiment of the present utility model.

[0036] Figure 7 It is a schematic structural diagram of the housing of another embodiment of the present utility model.

[0037] Figure 8 It is a schematic structural diagram of the housing of still another embodiment of the present utility model.

[0038] Figure 9 It is a schematic diagram of the flooded evaporator of an embodiment of the present utility model.

[0039] Reference Numerals:

[0040] 10. Housing; 11. Cavity; 12. Air inlet; 13. Air outlet; 14. First plate body; 15. Second plate body; 16. First end plate; 17. Second end plate; 20. Tank body; 21. Heat exchange area; 22. Exhaust area; 100. Flooded evaporator, 111. Lower cavity; 112. Upper cavity; 131. First air outlet; 132. Second air outlet; 141. Bottom plate; 142. First side plate; 143. Second side plate; 144. First extension plate; 145. Second extension plate; 151. Top plate; 152. Third side plate; 153. Fourth side plate; 154. Third extension plate; 155. Fourth extension plate; 1111. First part; 1112. Second part; 1121. Third part; 1122. Fourth part; 1123. Non-porous area; 1124. Porous area; 1125. First area; 1126. Second area. Detailed implementation mode

[0041] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0042] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0043] In combination with Figure 1 and Figure 2 , according to the suction anti-liquid-carrying device for the flooded evaporator 100 of the embodiment of the present invention, the suction anti-liquid-carrying device includes a housing 10, the housing 10 has a cavity 11, an air inlet 12 and an air outlet 13, the cavity 11 is divided into a lower cavity 111 and an upper cavity 112, the lower cavity 111 and the upper cavity 112 are communicated, the air inlet 12 is arranged on the side wall of the lower cavity 111, and the air outlet 13 is arranged on the wall of the upper cavity 112.

[0044] According to the suction anti-liquid-carrying device of the embodiment of the present invention, after the vapor carrying liquid droplets contacts the housing 10 of the suction anti-liquid-carrying device, the vapor flow first enters the lower cavity 111 from the air inlet 12 arranged on the side wall of the lower cavity 111, flows through to the upper cavity 112 and then leaves the cavity 11 from the air outlet 13 arranged on the wall of the upper cavity 112. During the process of the vapor flow entering and leaving the cavity 11, due to being blocked by the wall of the housing 10, multiple deflections occur and the movement direction of the air flow is changed. The liquid droplets will continue to maintain the original movement direction due to inertial capture and adhere to the inner side wall of the housing 10, thereby realizing the separation of the liquid droplets and the vapor.

[0045] It should be noted that the positional relationship between the "upper cavity" and the "lower cavity" can be referred to the up and down directions in the drawings. Of course, these descriptions of directions do not constitute a limitation on the protection scope of the present utility model, but are merely descriptions made in accordance with the drawings of this application.

[0046] As Figure 2 shown, in some embodiments of the present utility model, the lower cavity 111 has a first part 1111 and a second part 1112 along the intake direction of the intake port 12. The first part 1111 communicates with the intake port 12 and the second part 1112, and is separated from the upper cavity 112. The second part 1112 communicates with the upper cavity 112.

[0047] It should be noted that the "intake direction" refers to the direction in which the air flow enters the lower cavity 111 through the intake port 12. For example, referring to the front and back directions in the drawings, the air flow enters the lower cavity 111 from front to back through the front intake port 12, or enters the lower cavity 111 from back to front through the rear intake port. It can be understood that after the vapor flow carrying droplets enters the lower cavity 111 along the intake direction, it first flows through the first part 1111 separated from the upper cavity 112, and then flows through the second part 1112 to the upper cavity 112. This process extends the flow path of the vapor flow from intake to outlet, preventing the vapor carrying droplets from directly exiting through the outlet port 13 without droplet separation after entering the lower cavity 111.

[0048] In some embodiments of the present utility model, the bottom wall of the lower cavity 111 is a non-porous plate.

[0049] It can be understood that when the vapor flow carrying droplets rises and contacts the bottom wall of the lower cavity 111, since the bottom wall of the lower cavity 111 is a non-porous plate, the vapor flow makes full contact with the non-porous plate and undergoes a flow deflection. Due to inertial capture, the droplets will continue to maintain their original movement direction, thus achieving the separation of some droplets before the vapor enters the cavity 11.

[0050] Combined Figure 2 and Figure 3 , in some embodiments of the present utility model, the outlet port 13 includes a first outlet port 131 provided on the side wall of the upper cavity 112. The upper cavity 112 has a third part 1121 and a fourth part 1122 along the outlet direction of the first outlet port 131. The third part 1121 communicates with the first outlet port 131 and the fourth part 1122, and is separated from the lower cavity 111. The fourth part 1122 communicates with the lower cavity 111.

[0051] It should be noted that the "outlet direction of the first outlet port 131" refers to the direction in which the air flow exits the upper cavity 112 through the first outlet port 131, or can be referred to the front and back directions in the drawings. Of course, these descriptions of directions do not constitute a limitation on the protection scope of the present utility model, but are merely descriptions made in accordance with the drawings of this application.

[0052] It can be understood that when the vapor carrying droplets contacts the side wall of the upper cavity 112, the vapor flow changes its direction of motion due to the baffle flow and exits from the first air outlet 131. At this time, the droplets will continue to maintain their original direction of motion due to inertial capture. At this time, the droplets contact the side wall of the upper cavity 112 and flow along the direction of gravity, thereby realizing the separation of the droplets and the vapor.

[0053] It can also be understood that when the vapor carrying droplets exits along the air outlet direction of the first air outlet 131, the vapor first passes through the fourth part 1122 and then passes through the third part 1121 separated from the lower cavity 111. Since the third part 1121 is separated from the lower cavity 111, it is avoided that the vapor moving along the air outlet direction mixes with the steam flow moving along the air inlet direction, which has an adverse effect on the separation of the droplets and the vapor.

[0054] In some embodiments of the present invention, the air suction anti-liquid-carrying device further includes a partition plate, which is arranged in the housing 10 and partially separates the side part of the upper cavity 112 and the side part of the lower cavity 111.

[0055] It can be understood that the partition plate partially separates the side part of the upper cavity 112 and the side part of the lower cavity 111, so that when the vapor carrying droplets enters the lower cavity 111 along the air inlet direction, it needs to first pass through the area separated between the upper cavity 112 and the lower cavity 111 and then enter the area where the upper cavity 112 and the lower cavity 111 communicate, extending the flow path of the vapor flow carrying droplets, and avoiding the vapor moving along the air outlet direction mixing with the steam moving along the air inlet direction on the side of the cavity 11, which has an adverse effect on the separation of the droplets and the vapor.

[0056] As Figure 3 shown, in some embodiments of the present invention, the air outlet 13 further includes a second air outlet 132 arranged on the top wall of the upper cavity 112. The top wall of the upper cavity 112 may include a non-porous area 1123 and a porous area 1124. The non-porous area 1123 is used to face the air suction port of the full liquid evaporator 100, and the second air outlet 132 is arranged in the porous area 1124.

[0057] It can be understood that a second air outlet 132 is arranged on the top wall of the upper cavity 112, which is convenient for the vapor carrying droplets to have a baffle flow when contacting the top wall and exit from the second air outlet 132, while the droplets will continue to maintain their original direction of motion due to inertial capture. At this time, the droplets contact the upper wall of the upper cavity 112 and drip along the direction of gravity, thereby realizing the separation of the droplets and the vapor.

[0058] It can also be understood that the vapor close to the air suction port of the full liquid evaporator 100 has a relatively fast flow rate under the air suction effect. The top wall of the upper cavity 112 opposite to the air suction port is provided with a non-porous area 1123, which avoids the vapor opposite to the air suction port being sucked into the air suction port before the droplets are fully separated, thereby further improving the separation efficiency of the droplets and the vapor.

[0059] AsFigure 3 As shown, in some embodiments of the present invention, the distribution density of the second air outlet 132 near the non-porous region 1123 is less than the distribution density of the second air outlet 132 far from the non-porous region 1123.

[0060] Among them, the "distribution density of the second air outlet 132" may refer to the number of arrangements of the second air outlet 132 per unit length or unit area. It can be understood that due to the suction of the suction port, the flow rate of the vapor near the suction port is greater than the flow rate of the vapor far from the suction port. Setting a smaller number of second air outlets 132 near the non-porous region 1123 reduces the steam flow rate, which can not only evenly distribute the air flow, avoid excessive concentration of the vapor air flow in a certain area, but also prevent the vapor near the non-porous region 1123 from being sucked into the suction port before the liquid droplets are fully separated, thereby further improving the separation efficiency of the liquid droplets and the vapor.

[0061] In some other embodiments of the present invention, the distribution density of the air outlet 13 near the suction port of the flooded evaporator 100 in the upper cavity 112 is less than the distribution density of the air outlet 13 far from the suction port of the flooded evaporator 100.

[0062] Among them, the "distribution density of the air outlet 13" refers to the number of arrangements of the air outlet 13 per unit length or area. It can be understood that due to the suction effect, the flow rate of the vapor near the suction port is greater than the flow rate of the vapor far from the suction port. The distribution density of the air outlet 13 near the suction port of the flooded evaporator 100 is small, while the distribution density of the air outlet 13 far from the suction port of the flooded evaporator 100 is large, thereby relatively reducing the vapor flow rate of the air outlet 13 near the suction port, making the vapor air flow evenly distributed, and preventing gas congestion or excessive flow rate near the suction port. At the same time, the small distribution density of the air outlet 13 near the suction port of the flooded evaporator 100 can prevent the vapor near the suction port from being sucked into the suction port before the liquid droplets are fully separated, thereby further improving the separation efficiency of the liquid droplets and the vapor.

[0063] For the arrangement form of the air outlet 13, the present invention may include but is not limited to the following various implementation manners.

[0064] In the first implementation manner, the number of air outlets 13 arranged per unit area in the air outlets 13 near the suction port of the flooded evaporator 100 in the upper cavity 112 is less than the number of arrangements of the air outlets 13 far from the suction port of the flooded evaporator 100.

[0065] In the second implementation manner, as Figure 4 and Figure 5As shown, the upper cavity 112 has a first region 1125 and a second region 1126. The second region is farther from the suction port of the flooded evaporator 100 than the first region 1125. The distance L1 between adjacent air outlets in the first region 1125 is greater than the distance L2 between adjacent air outlets in the second region 1126.

[0066] In the third implementation manner, in the direction away from the suction port of the flooded evaporator 100, the distance between adjacent air outlets gradually increases. For example, in the direction away from the suction port of the flooded evaporator 100, the first air outlet, the second air outlet, the third air outlet, and the fourth air outlet are arranged adjacent to each other. The distance between the first air outlet and the second air outlet is a1, the distance between the second air outlet and the third air outlet is a2, and the distance between the third air outlet and the fourth air outlet is a3, where a1 > a2 > a3. It should be noted that the above examples are only some implementation manners of the present utility model and do not limit the protection scope of the present utility model.

[0067] In addition, in combination with the foregoing implementation manners, in some embodiments of the present utility model, the aperture of the air outlet 13 is not less than 10 mm and not more than 30 mm. For example, the aperture of the air outlet 13 can be set to 10 mm, 13 mm, 25 mm, 29 mm, etc.

[0068] Furthermore, in some embodiments of the present utility model, the ratio of the distance L1 to the aperture of the air outlet 13 is not less than 1 and not more than 5, and the ratio of the distance L2 to the aperture of the air outlet 13 is not less than 1 and not more than 3.

[0069] In some other embodiments of the present utility model, the distance L1 can be set to be not less than 10 mm and not more than 150 mm, the distance L2 is not less than 10 mm and not more than 30 mm, and the distance L1 is greater than the distance L2. For example, when the distance L1 is set to 15 mm, the distance L2 can be set to 10 mm. The distance L1 can also be set to 25 mm, 15 mm, 20 mm, or 150 mm, and the distance L2 corresponding to the distance L1 can be set to 15 mm, 25 mm, or 30 mm. Of course, the above parameters are only some implementation manners of the present utility model and do not limit the protection scope of the present utility model.

[0070] Furthermore, in some other embodiments of the present utility model, in the direction away from the suction port of the flooded evaporator 100, the distance between adjacent air outlets gradually decreases, and the ratio of the distance between adjacent air outlets to the aperture of the air outlet is not less than 1 and not more than 5.

[0071] In some embodiments of the present utility model, in the direction away from the suction port of the flooded evaporator 100, the distance between adjacent air outlets 13 is not less than 10 mm and not more than 150 mm. For example, there are multiple air outlets 13, and the distances between adjacent air outlets in the direction away from the suction port of the flooded evaporator 100 can be set to 150 mm, 128 mm, 96 mm, 55 mm, 32 mm, and 10 mm respectively. Of course, the above parameters are only some embodiments of the present utility model and do not limit the protection scope of the present utility model.

[0072] Furthermore, in some other embodiments of the present utility model, the distance between adjacent air outlets 13 in the flow direction gradually increases, and the distance between adjacent air outlets is not less than 10 mm and not more than 150 mm. For example, the first air outlet, the second air outlet, the third air outlet, and the fourth air outlet are arranged adjacent to each other in the direction gradually away from the suction port of the flooded evaporator 100. The distance between the first air outlet and the second air outlet is set to 30 mm, the distance between the second air outlet and the third air outlet is set to 25 mm, and the distance between the third air outlet and the fourth air outlet is set to 10 mm. Of course, the above parameters are only some embodiments of the present utility model and do not limit the protection scope of the present utility model.

[0073] Combined with Figure 2 、 Figure 3 and Figure 6 In some embodiments of the present utility model, the housing 10 includes a first plate body 14 and a second plate body 15. The first plate body 14 and the second plate body 15 extend in the left-right direction, the first plate body 14 and the second plate body 15 are connected in the up-down direction, a cavity 11 is formed between the first plate body 14 and the second plate body 15, a lower cavity 111 is formed in the first plate body 14, and an upper cavity 112 is formed in the second plate body 15.

[0074] It should be noted that the "left-right direction" and "up-down direction" can be referred to the drawings. Of course, these descriptions of the orientation do not limit the protection scope of the present utility model and are only descriptions made according to the drawings of the present application.

[0075] It can be understood that after the first plate body 14 and the second plate body 15 are connected in the up-down direction, a cavity 11 for the steam flow to pass through is formed. The steam enters the lower cavity 111 from the air inlet 12 of the first plate body 14, flows through the upper cavity 112 and then exits from the air outlet 13 of the second plate body 15. During this process, when the steam carrying droplets contacts the first plate body 14 and the second plate body 15, the steam is blocked and undergoes a baffle flow to change the direction of motion, while the droplets maintain their direction of motion, resulting in the droplets adhering to the first plate body 14 and the second plate body 15, thereby realizing the separation of the droplets and the steam.

[0076] Such as Figure 6As shown, in some embodiments of the present utility model, the width dimension of the cross-section of the first plate body 14 is greater than the width dimension of the cross-section of the second plate body 15.

[0077] Wherein, with reference to Figure 6 , the "width dimension of the cross-section of the first plate body 14" refers to the width dimension of the first plate body 14 in the front-back direction, and the "width dimension of the cross-section of the second plate body 15" refers to the width dimension of the second plate body 15 in the front-back direction.

[0078] It can be understood that the width dimension of the cross-section of the flooded evaporator 100 increases in the up-down direction as it moves away from the suction port. The fact that the width dimension of the cross-section of the first plate body 14 is greater than the width dimension of the cross-section of the second plate body 15 facilitates the adaptation of the first plate body 14 and the second plate body 15 to the flooded evaporator 100 after connection.

[0079] As Figure 7 shown, in some embodiments of the present utility model, the first plate body 14 includes a bottom plate 141, a first side plate 142, and a second side plate 143. The first side plate 142 and the second side plate 143 are respectively connected to the two side edges of the bottom plate 141; the second plate body 15 includes a top plate 151, a third side plate 152, and a fourth side plate 153. The third side plate 152 and the fourth side plate 153 are respectively connected to the two side edges of the top plate 151. The projections of the third side plate 152 and the fourth side plate 153 on the bottom plate 141 fall between the first side plate 142 and the second side plate 143.

[0080] It can be understood that when the projections of the third side plate 152 and the fourth side plate 153 on the bottom plate 141 fall between the first side plate 142 and the second side plate 143, the lower cavity 111 formed by the first plate body 14 and the upper cavity 112 formed by the second plate body 15 are opposite in the up-down direction, and the distance between the first side plate 142 and the second side plate 143 is greater than the distance between the third side plate 152 and the fourth side plate 153, which is convenient for further adaptation to the flooded evaporator.

[0081] In some other embodiments of the present utility model, the projection of the third side plate 152 or the fourth side plate 153 on the bottom plate 141 falls between the first side plate 142 and the second side plate 143. It can be understood that the lower cavity 111 formed by the first plate body 14 and the upper cavity 112 formed by the second plate body 15 are configured to be partially staggered, which is convenient for the housing 10 to be adjusted according to the actual requirements of the flooded evaporator and further adapt to the flooded evaporator.

[0082] In some embodiments of the present utility model, the first plate body 14 further includes a first extension plate 144 and a second extension plate 145. The first extension plate 144 is connected to the first side plate 142 and extends outward from the cavity 11. The second extension plate 145 is connected to the second side plate 143 and extends outward from the cavity 11. The second plate body 15 further includes a third extension plate 154 and a fourth extension plate 155. The third extension plate 154 is connected to the third side plate 152 and extends outward from the cavity 11. The fourth extension plate 155 is connected to the fourth side plate 153 and extends outward from the cavity 11. The first extension plate 144 and the third extension plate 154 are stacked, and the second extension plate 145 and the fourth extension plate 155 are stacked.

[0083] It can be understood that the first extension plate 144 is connected to the first side plate 142 and extends outward from the cavity 11. The second extension plate 145 is connected to the second side plate 143 and extends outward from the cavity 11. The third extension plate 154 is connected to the third side plate 152 and extends outward from the cavity 11. The fourth extension plate 155 is connected to the fourth side plate 153 and extends outward from the cavity 11. The first extension plate 144 and the third extension plate 154 are stacked, and the second extension plate 145 and the fourth extension plate 155 are stacked, which is convenient for welding the first plate body 14 and the second plate body 15.

[0084] It can also be understood that since the first extension plate 144, the second extension plate 145, the third extension plate 154, and the fourth extension plate 155 are all connected to the outside of the cavity 11, it is not only convenient for the first side plate 142 and the second side plate 143 to be connected to the flooded evaporator 100, but also prevents the vapor carrying droplets below the housing 10 from directly entering the suction port of the flooded evaporator 100 and causing liquid carryover during suction. At the same time, the vapor flow passing through the outlet 13 carries smaller droplets and flows upward at a lower velocity toward the suction port. At this time, the droplets settle due to gravity and separate from the vapor flow. The settled droplets gather on the third extension plate 154 and the fourth extension plate 155, which is convenient for droplet collection.

[0085] In other embodiments of the present utility model, the second plate body 15 further includes a third extension plate 154 and a fourth extension plate 155. The third extension plate 154 is connected to the third side plate 152 and extends outward from the cavity 11. The fourth extension plate 155 is connected to the fourth side plate 153 and extends outward from the cavity 11. The first side plate 142 is opposite to the third extension plate 154, and the second side plate 143 is opposite to the fourth extension plate 155.

[0086] It can be understood that the relative position of the first side plate 142 and the third extension plate 154 is convenient for welding the first side plate 142 and the third extension plate 154, and the relative position of the second side plate 143 and the fourth extension plate 155 is convenient for welding the second side plate 143 and the fourth extension plate 155.

[0087] In some embodiments of the present utility model, the first plate body 14 is integrally formed, facilitating the connection of the first plate body 14 to the flooded evaporator.

[0088] In some other embodiments of the present utility model, the second plate body 15 is integrally formed, facilitating the connection of the second plate body 15 to the flooded evaporator.

[0089] In some other embodiments of the present utility model, the first plate body 14 and the second plate body 15 are integrally formed or welded.

[0090] In some other embodiments of the present utility model, the first plate body 14 and the partition are integrally formed. For example, as Figure 8 shown, the first extension plate 144 on the first plate body 14 and the partition are integrally formed, and the second extension plate 145 on the first plate body 14 and the partition are integrally formed, facilitating the assembly of the partition and the first plate body 14 to the flooded evaporator.

[0091] It can be understood that the integral formation or welding of the first plate body 14 and the second plate body 15 facilitates the production of the housing 10 and its assembly to the flooded evaporator.

[0092] As Figure 3 shown, in some embodiments of the present utility model, the housing 10 further includes a first end plate 16 and a second end plate 17. The first end plate 16 is connected to the left ends of the first plate body 14 and the second plate body 15, and the second end plate 17 is connected to the right ends of the first plate body 14 and the second plate body 15. The first end plate 16 and the second end plate 17 cover the cavity 11.

[0093] It can be understood that the first end plate 16 and the second end plate 17 are connected to the left and right ends of the first plate body 14 and the second plate body 15 and cover the cavity 11, preventing the vapor flow carrying droplets from entering the upper part of the housing 10 from below the housing 10 or both ends of the cavity 11 without sufficient droplet separation.

[0094] In some embodiments of the present utility model, there is a gap between the first end plate 16 and the edge of the first plate body 14.

[0095] It can be understood that due to the gap between the first end plate 16 and the edge of the first plate body 14, the droplets stay on the upper surface of the first plate body 14 after being separated from the vapor flow and enter the heat exchange area 21 of the flooded evaporator 100 along the gap, facilitating the cleaning of the droplets on the first plate body 14 and the secondary utilization of the droplets.

[0096] In some other embodiments of the present utility model, a gap is left between the second end plate 17 and the edge of the first plate body 14; a gap is left between the first end plate 16 and the edge of the second plate body 15. It can be understood that after the droplets are separated from the vapor flow, they gather on the partial upper surfaces of the first plate body 14 and the second plate body 15 and enter the heat exchange area of the flooded evaporator 100 along the gap between the first end plate 16 and the edge of the first plate body 14, which is convenient for cleaning the droplets gathered on the housing 10 and reusing the droplets.

[0097] In still some other embodiments of the present utility model, a gap is left between the second end plate 17 and the edge of the second plate body 15. It can be understood that after the droplets are separated from the vapor flow in the cavity 11, they gather on the partial upper surface of the bottom of the lower cavity 111, i.e., the second bottom plate 141, and the gathered droplets enter the heat exchange area of the flooded evaporator 100 along the gap between the second end plate 17 and the edge of the second plate body 15, which is convenient for cleaning the droplets gathered on the housing 10 and reusing the droplets.

[0098] As Figure 9 shown, the flooded evaporator 100 according to an embodiment of the present utility model includes a tank body 20 having a suction port and the above-mentioned suction anti-liquid-carrying device for the flooded evaporator 100. The suction anti-liquid-carrying device divides a heat exchange area 21 and an exhaust area 22 in the tank body 20. The air inlet 12 communicates with the heat exchange area 21, and the air outlet 13 communicates with the exhaust area 22.

[0099] According to the flooded evaporator 100 of the present utility model, the suction anti-liquid-carrying device divides a heat exchange area 21 and an exhaust area 22 in the tank body 20. The heat exchange area 21 of the flooded evaporator 100 generates vapor carrying droplets. The vapor enters the suction anti-liquid-carrying device through the air inlet 12, and after separating the droplets, it enters the exhaust area 22 through the air outlet 13, and then enters the compressor from the suction port, avoiding the occurrence of liquid-carrying during suction caused by the vapor carrying droplets generated in the heat exchange area 21 of the flooded evaporator 100 directly entering the exhaust area 22 and then entering the compressor from the suction port.

[0100] In some embodiments of the present utility model, the tank body 20 is welded to the suction anti-liquid-carrying device, which is convenient for connecting the tank body 20 and the suction anti-liquid-carrying device.

[0101] In some embodiments of the present utility model, there is a gap between the suction anti-liquid-carrying device and the tank body 20. The droplets that gather on the upper surface of the suction anti-liquid-carrying device due to droplet sedimentation enter the heat exchange area 21 through the gap, which is convenient for collecting and reusing the droplets.

[0102] The present utility model also provides a heating, ventilation and air conditioning (HVAC) device. The HVAC device according to an embodiment of the present utility model includes the anti-liquid-carrying device for suction of the flooded evaporator 100 in the above-mentioned embodiment, or includes the flooded evaporator 100 in the above-mentioned embodiment.

[0103] In the description of the present utility model, 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, and is only for the convenience of describing the present utility model 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, and therefore should not be construed as a limitation on the present utility model.

[0104] 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 at least one of such features. In the description of the present utility model, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0105] In the present utility model, unless otherwise clearly specified and defined, the terms "mounted", "connected", "connected to", "fixed", etc. shall 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 may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0106] In the present utility model, 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.

[0107] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples", etc. mean 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 utility model. 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 a suitable manner in any one or more embodiments or examples. 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.

[0108] Although the embodiments of the present utility model 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 utility model. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present utility model.

Claims

1. An anti-liquid entrainment device for a liquid-filled evaporator (100), characterized in that: The air suction anti-liquid device comprises a shell (10), the shell (10) having a cavity (11), an air inlet (12) and an air outlet (13), the cavity (11) being divided into a lower cavity (111) and an upper cavity (112), the lower cavity (111) and the upper cavity (112) being connected, the air inlet (12) being arranged on a side wall of the lower cavity (111), and the air outlet (13) being arranged on a wall of the upper cavity (112).

2. The air suction anti-liquid carrying device according to claim 1, characterized in that: The lower chamber (111) comprises a first portion (1111) and a second portion (1112) along the air intake direction of the air intake port (12); the first portion (1111) is connected to the air intake port (12) and the second portion (1112) and is separated from the upper chamber (112); and the second portion (1112) is connected to the upper chamber (112).

3. The air suction anti-liquid carrying device according to claim 1, characterized in that: The bottom wall of the lower chamber (111) is a plate without holes.

4. The air suction anti-liquid carrying device according to claim 1, characterized in that: The air outlet (13) comprises a first air outlet (131) arranged on a side wall of the upper chamber (112); the upper chamber (112) comprises a third portion (1121) and a fourth portion (1122) along an air outlet direction of the first air outlet (131); the third portion (1121) is connected to the first air outlet (131) and the fourth portion (1122) and is separated from the lower chamber (111); and the fourth portion (1122) is connected to the lower chamber (111).

5. The suction anti-liquid carrying device according to any one of claims 1 to 4, characterized in that: The air suction anti-liquid entrainment device further comprises a partition plate, which is arranged in the shell (10) and partially separates the side portion of the upper chamber (112) from the side portion of the lower chamber (111).

6. The suction anti-liquid carrying device according to any one of claims 1 to 4, characterized in that: The air outlet (13) further comprises a second air outlet (132) arranged on the top wall of the upper chamber (112); the top wall of the upper chamber (112) comprises a non-porous area (1123) and a porous area (1124); the non-porous area (1123) is used to be opposite to the air intake port of the full liquid evaporator (100); and the second air outlet (132) is arranged in the porous area (1124).

7. The air suction anti-liquid entrainment device according to claim 6, characterized in that: The distribution density of the second air outlets (132) close to the non-porous area (1123) is smaller than the distribution density of the second air outlets (132) far from the non-porous area (1123).

8. The suction anti-liquid carrying device according to any one of claims 1 to 4, characterized in that: The distribution density of the air outlets (13) of the upper chamber (112) close to the air intake port of the flooded evaporator (100) is smaller than the distribution density of the air outlets (13) far from the air intake port of the flooded evaporator (100).

9. The air suction anti-liquid entrainment device according to claim 8, characterized in that: The upper chamber (112) comprises a first zone (1125) and a second zone (1126); the second zone (1126) is farther away from the air intake port of the flooded evaporator (100) than the first zone (1125); and a spacing L1 between adjacent air outlets of the first zone (1125) is greater than a spacing L2 between adjacent air outlets of the second zone (1126).

10. The suction anti-liquid entrainment device according to claim 9, characterized in that: The ratio of the spacing L1 to the aperture of the air outlet (13) is not less than 1 and not greater than 5, and the ratio of the spacing L2 to the aperture of the air outlet (13) is not less than 1 and not greater than 3.

11. The suction anti-liquid carrying device according to any one of claims 1 to 4, characterized in that: The shell (10) comprises a first plate body (14) and a second plate body (15); the first plate body (14) and the second plate body (15) extend in the left-right direction and are connected in the up-down direction; the cavity (11) is constructed between the first plate body (14) and the second plate body (15); the lower cavity (111) is constructed in the first plate body (14); and the upper cavity (112) is constructed in the second plate body (15).

12. The suction anti-liquid entrainment device according to claim 11, characterized in that: The width dimension of the cross section of the first plate body (14) is greater than the width dimension of the cross section of the second plate body (15).

13. The suction anti-liquid carrying device according to claim 11, characterized in that: The first plate body (14) comprises a bottom plate (141), a first side plate (142) and a second side plate (143), wherein the first side plate (142) and the second side plate (143) are respectively connected to the two side edges of the bottom plate (141); the second plate body (15) comprises a top plate (151), a third side plate (152) and a fourth side plate (153), wherein the third side plate (152) and the fourth side plate (153) are respectively connected to the two side edges of the top plate (151), and the projections of the third side plate (152) and the fourth side plate (153) on the bottom plate (141) fall between the first side plate (142) and the second side plate (143).

14. The suction anti-liquid entrainment device according to claim 13, characterized in that: The first plate body (14) further comprises a first extension plate (144) and a second extension plate (145), wherein the first extension plate (144) is connected to the first side plate (142) and extends outward from the cavity (11), and the second extension plate (145) is connected to the second side plate (143) and extends outward from the cavity (11); the second plate body (15) further comprises a third extension plate (154) and a fourth extension plate (155), wherein the third extension plate (154) is connected to the third side plate (152) and extends outward from the cavity (11), and the fourth extension plate (155) is connected to the fourth side plate (153) and extends outward from the cavity (11), the first extension plate (144) and the third extension plate (154) are stacked, and the second extension plate (145) and the fourth extension plate (155) are stacked; Alternatively, the second plate body (15) further includes a third extension plate (154) and a fourth extension plate (155), the third extension plate (154) being connected to the third side plate (152) and extending outward from the cavity (11), the fourth extension plate (155) being connected to the fourth side plate (153) and extending outward from the cavity (11), the first side plate (142) being opposite to the third extension plate (154), and the second side plate (143) being opposite to the fourth extension plate (155).

15. The air suction anti-liquid entrainment device according to claim 11, characterized in that: The first plate body (14) is integrally formed; or, the second plate body (15) is integrally formed; or, the first plate body (14) and the second plate body (15) are integrally formed or welded.

16. The suction anti-liquid entrainment device according to claim 11, characterized in that: The shell (10) further comprises a first end plate (16) and a second end plate (17), wherein the first end plate (16) is connected to the left ends of the first plate body (14) and the second plate body (15), and the second end plate (17) is connected to the right ends of the first plate body (14) and the second plate body (15), and the first end plate (16) and the second end plate (17) cover the cavity (11).

17. The suction anti-liquid entrainment device according to claim 16, characterized in that: A gap is left between the first end plate (16) and the edge of the first plate body (14); or a gap is left between the second end plate (17) and the edge of the first plate body (14); a gap is left between the first end plate (16) and the edge of the second plate body (15); or a gap is left between the second end plate (17) and the edge of the second plate body (15).

18. A flooded evaporator (100), characterized in that: include: A tank body (20), wherein the tank body (20) has an air intake port; The air intake anti-liquid entrainment device for a fully liquid evaporator (100) according to any one of claims 1 to 17, wherein the air intake anti-liquid entrainment device separates a heat exchange zone (21) and an exhaust zone (22) in the tank body (20), the air inlet (12) is connected to the heat exchange zone (21), and the air outlet (13) is connected to the exhaust zone (22).

19. The flooded evaporator (100) according to claim 18, characterized in that: The tank body (20) is welded to the air suction anti-liquid entrainment device; and / or a gap is provided between the air suction anti-liquid entrainment device and the tank body (20).

20. A HVAC equipment, characterized in that: It comprises the device for preventing liquid from being sucked in for the fully liquid evaporator (100) according to any one of claims 1 to 17, or the fully liquid evaporator (100) according to claim 18 or 19.

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