Flash barrel type economizer

Abstract

The utility model relates to a flash drum type economizer. Comprising a barrel, an input port connected with an outlet of a condenser and used for conveying gas-liquid mixed refrigerants to the barrel, a liquid outlet formed in the lower portion of the barrel and used for outputting liquid refrigerants, a gas outlet formed in the upper portion of the barrel and used for outputting gaseous refrigerants, and an adjusting mechanism arranged in the barrel and used for controlling the exhaust flow of the gas outlet. The adjusting mechanism comprises a valve element which is arranged below the air outlet in an up-down moving mode and blocks or opens the air outlet through movement, a floating ball which is movably arranged in the barrel and used for driving the valve element and a transmission assembly connected between the valve element and the floating ball, and the upper end of the valve element is conical. On the basis of separating and adjusting gas-liquid mixed refrigerants, improving heat exchange efficiency and reducing loads, the economizer can automatically adjust the output flow of gas and liquid, the defects that electronic devices are prone to aging and accessories need to be replaced frequently are overcome, manufacturing and maintaining cost is reduced, and using efficiency of a refrigerating system is improved.

Description

Technical Field

[0001] This utility model relates to a flash evaporator barrel economizer, which is applicable to the field of refrigeration system technology. Background Technology

[0002] Flash refrigerant tank economizers are energy-saving devices used in refrigeration systems. In a refrigeration system, the low-temperature refrigerant output from the condenser is throttled before entering the evaporator. The refrigerant entering the evaporator is usually in a gas-liquid mixture state. This gas-liquid mixture evaporates and vaporizes in the evaporator, forming a completely gaseous refrigerant that returns to the compressor. However, in actual operation, the gaseous refrigerant entering the evaporator contributes almost no cooling capacity; instead, it increases the pressure drop in the refrigeration lines and occupies heat exchange area, significantly impacting heat exchange efficiency. Therefore, by installing an economizer upstream of the evaporator, not only can the gas-liquid mixture be separated, but also a portion of the high-pressure liquid can be rapidly evaporated into gas by introducing it into a low-pressure environment. This process absorbs heat, lowers the temperature of the remaining liquid, and allows the gas to return to the compressor, while the liquid enters the main refrigeration circuit. This reduces the compressor load and improves efficiency. Existing flash tank economizers typically control the flow rate of gas and liquid output from the flash tank using sensors in conjunction with solenoid valves. However, the sensors are exposed to the low-temperature and high-pressure environment inside the flash tank for extended periods, which can easily lead to aging and decreased sensitivity. This necessitates frequent replacement of parts, reducing the efficiency of the refrigeration system and increasing maintenance costs. Utility Model Content

[0003] To address the shortcomings of the existing technology, this utility model proposes a flash evaporator barrel-type economizer.

[0004] The technical solution adopted in this utility model is a flash evaporator barrel-type economizer, including a barrel body, an inlet on the barrel body for connecting to the condenser outlet and supplying a gas-liquid mixed refrigerant into the barrel body, a liquid outlet on the lower part of the barrel body for connecting to the evaporator inlet and discharging liquid refrigerant, an outlet on the upper part of the barrel body for connecting to the compressor suction port or compressor makeup port and discharging gaseous refrigerant, and an adjusting mechanism disposed in the barrel body for controlling the exhaust flow rate of the outlet. The adjusting mechanism includes a movable seal located at the outlet and movable at the bottom. The system comprises a valve core for blocking or opening the air outlet, a float movably disposed inside the cylinder for driving the valve core, and a transmission assembly connecting the valve core and the float. The end of the valve core facing the air outlet is tapered. The float has a first position and a second position below the first position inside the cylinder. The adjustment mechanism has at least two working states. When it is in the first working state, the float is in the first position, the end of the valve core is inserted into the air outlet and blocks the air outlet. When the adjustment mechanism is in the second working state, the float is in the second position, the end of the valve core disengages from the air outlet and opens the air outlet. When the gas-liquid mixture of refrigerant output from the condenser enters the cylinder through the inlet, the gaseous and liquid refrigerants are separated by the outlets located at the top and bottom of the cylinder, respectively. Simultaneously, a float inside the cylinder monitors the volume of liquid refrigerant. When the liquid level rises, the float drives the valve core upwards via a transmission assembly, gradually blocking the outlet and reducing the exhaust flow. This increases the internal pressure of the cylinder, increasing the flow rate of liquid refrigerant output from the outlet. Conversely, when the liquid level falls, the float drives the valve core downwards via the transmission assembly, gradually opening the outlet and increasing the exhaust flow. This reduces the internal pressure of the cylinder, decreasing the flow rate of liquid refrigerant output from the outlet. The regulating mechanism allows the economizer to automatically adjust the output flow rate based on the state of the liquid refrigerant inside the cylinder. This avoids the drawbacks of prolonged operation of electronic components in low-temperature environments, reducing manufacturing and maintenance costs, eliminating the need for frequent parts replacement, and improving the efficiency of the refrigeration system.

[0005] Optionally, the transmission assembly includes a first slide rail vertically disposed within the cylinder and a first slider slidably disposed on the first slide rail. Both the float and the valve core are fixedly connected to the first slider. By fixing both the valve core and the float to the first slider, it is easier to drive the valve core with the float. Simultaneously, the first slide rail restricts the movement path of the float, ensuring that when the float drives the valve core upwards, the valve core can accurately block the air outlet.

[0006] Optionally, the transmission assembly includes a vertically arranged second slide rail, a second slider slidably connected to the second slide rail, and a lever assembly whose one end is rotatably and slidably connected to the second slider. The other end of the lever assembly is rotatably connected to a float, and the valve core is fixedly connected to the second slider. The second slide rail and the second slider restrict the movement path of the valve core, ensuring that the valve core can move vertically below the outlet. The lever assembly then converts the displacement of the float into the drive of the valve core, allowing the valve core to adjust the opening of the outlet according to the liquid refrigerant level in the cylinder. Furthermore, the transmission via the lever assembly allows for adjusting the ratio of the float's movement distance to the valve core's movement distance by setting the length ratio on both sides of the lever fulcrum, thus enabling more precise adjustment of the relative relationship between the liquid level and the outlet opening.

[0007] Furthermore, the lever assembly includes a first lever rotatably mounted about a fixed first pivot and connected at one end to a second slider that can both rotate and slide relative to it; a third slide rail vertically mounted between the second slide rail and the float; a connecting rod slidably connected in the third slide rail; and a second lever rotatably mounted about a fixed second pivot and connected at one end to the connecting rod that can both rotate and slide relative to it. The other end of the first lever is connected to the connecting rod that can both rotate and slide relative to it, and the other end of the second lever is rotatably connected to the float. Through the linkage of the first lever, the connecting rod, and the second lever, the valve core can move upward synchronously when the float rises and descend synchronously when the float sinks, thus realizing the actuation of the valve core by the float.

[0008] Furthermore, a first groove is provided on the first lever along its length direction. The pivot between the second slider and the first lever, as well as the pivot between the connecting rod and the first lever, can be slidably disposed in the first groove, thereby realizing a connection relationship between the first lever and the second slider that allows for both relative rotation and relative sliding.

[0009] Furthermore, a second groove is formed on the second lever along its length. The pivot between the connecting rod and the second lever is slidably disposed in the second groove, thereby achieving a connection relationship between the second lever and the connecting rod that allows for both relative rotation and relative sliding. The transmission assembly also includes a vertically arranged fourth slide rail and a third slider slidably disposed in the fourth slide rail. The float is fixedly connected to the third slider, and the pivot between the float and the second lever is slidably disposed in the second groove. By restricting the movement path of the float through the fourth slide rail and the third slider, the float can move vertically within the cylinder in a fixed posture, improving the accuracy of the float's feedback on the liquid refrigerant level, thereby improving the adjustment precision.

[0010] Optionally, the air outlet is located on the upper part of the side wall of the cylinder, with one end of the air outlet inside the cylinder facing upwards. The valve core is located above one end of the air outlet. The lever assembly includes a third lever rotatably disposed between the second slide rail and the float around a fixed third rotating shaft, and a third sliding groove formed on the surface of the third lever along the length direction of the third lever. The two ends of the third lever are rotatably connected to the second slider and the float, respectively, and the rotating shaft between the third lever and the second slider is slidably connected in the third sliding groove. By setting the air outlet to an L-shape with the inner side facing upwards, the lever assembly can achieve the float to float by using only a single lever. The valve core gradually blocks the air outlet, and the float moves downwards, so the valve core gradually opens the air outlet. By simplifying the structure of the lever assembly, the assembly convenience and durability of the economizer are improved.

[0011] Furthermore, an annular baffle is installed inside the cylinder. The upper end of the baffle extends outward and connects to the inner wall of the cylinder. The outer wall of the baffle and the inner wall of the cylinder form a flow channel for the gas-liquid mixed refrigerant to pass through. The inlet is connected to this flow channel, and the adjusting mechanism is located inside the baffle. By blocking the gas-liquid mixed refrigerant entering through the inlet by the baffle, the mixed refrigerant enters the cylinder and flows downward along the flow channel formed by the baffle. This prevents the gas-liquid mixed refrigerant from impacting the float and affecting the opening adjustment of the outlet, and also prevents the mixed refrigerant from rushing to the outlet, causing liquid to be carried in the exhaust gas.

[0012] Furthermore, at least one anti-vortex plate is vertically installed at the bottom of the cylinder. The two ends of the anti-vortex plate are respectively connected to the inner wall of the cylinder. The anti-vortex plate forms a certain barrier and interference to the refrigerant flowing into the bottom of the cylinder, preventing the refrigerant from forming vortices in the cylinder, thereby avoiding affecting the output flow rate of the liquid outlet and also preventing the liquid outlet from carrying gas.

[0013] Furthermore, the ratio of the flow coefficient of the gaseous refrigerant output from the gas outlet to the flow coefficient of the liquid refrigerant output from the liquid outlet is 0.5~2.

[0014] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:

[0015] The flash barrel economizer of this invention regulates the flow rates of gas and liquid refrigerant output through an adjustment mechanism consisting of a float, valve core, and transmission components. This achieves separation and regulation of the gas-liquid mixture output from the condenser, improving the heat exchange efficiency of the evaporator and reducing the compressor load. Furthermore, the economizer automatically adjusts the output flow rates of gaseous and liquid refrigerant based on the state of the refrigerant within the barrel. This avoids the drawbacks of relying on sensors and other electronic components that are prone to aging and require frequent replacement. It not only reduces manufacturing and maintenance costs but also improves the efficiency of the refrigeration system. Attached Figure Description

[0016] The following sections will describe some specific embodiments of the present invention in a detailed manner by way of example and not limitation, with reference to the accompanying drawings. The same reference numerals in the drawings denote the same or similar mechanisms or parts. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0017] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of Embodiment 2 of this utility model;

[0019] Figure 3 yes Figure 2 A schematic diagram of the transmission assembly in the embodiment shown;

[0020] Figure 4 This is a structural schematic diagram of Embodiment 3 of this utility model;

[0021] The annotations in the attached figures are explained as follows:

[0022] 1. Cylinder body; 11. Inlet; 12. Liquid outlet; 13. Gas outlet; 14. Baffle plate; 15. Anti-vortex plate; 2. Adjustment mechanism; 21. Valve core; 22. Float; 3. Transmission assembly; 31. First slide rail; 32. First slider; 33. Second slide rail; 34. Second slider; 35. Lever assembly; 351. First lever; 3511. First slide groove; 352. Third slide rail; 353. Connecting rod; 354. Second lever; 3541. Second slide groove; 355. First rotating shaft; 356. Second rotating shaft; 357. Third rotating shaft; 358. Third lever; 3581. Third slide groove; 36. Fourth slide rail; 37. Third slider. Detailed Implementation

[0023] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0024] In the description of this utility model, it should be noted that the terms "upper" and "lower" used in directional descriptions are defined according to the orientation of the economizer during normal installation and use. Specifically, when the economizer is normally installed, the side facing the ground is "lower," and vice versa is "upper." The terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other. Example 1

[0025] Reference Appendix Figure 1The flash evaporator-type economizer in this embodiment includes a cylinder 1, an inlet 11 located on the cylinder 1 for connecting to the condenser outlet and supplying a gas-liquid mixed refrigerant into the cylinder 1, an outlet 12 located at the lower part of the cylinder 1 for connecting to the evaporator inlet and discharging liquid refrigerant, an outlet 13 located at the upper part of the cylinder 1 for connecting to the compressor suction port or compressor makeup port and discharging gaseous refrigerant, and an adjusting mechanism 2 located inside the cylinder 1 for controlling the exhaust flow rate of the outlet 13. The adjusting mechanism 2 includes a valve core 21 that is vertically movable at the outlet 13 and can be moved to block or open the outlet 13. A float 22 is movably disposed inside the cylinder 1 and used to drive the valve core 21. A transmission assembly 3 is connected between the valve core 21 and the float 22. The end of the valve core 21 facing the air outlet 13 is tapered. The float 22 has a first position and a second position below the first position inside the cylinder 1. The adjustment mechanism 2 has at least two working states. When it is in the first working state, the float 22 is in the first position, the end of the valve core 21 is inserted into the air outlet 13 and blocks the air outlet 13. When the adjustment mechanism 2 is in the second working state, the float 22 is in the second position, the end of the valve core 21 is disengaged from the air outlet 13 and the air outlet 13 is opened. When the gas-liquid mixture of refrigerant output from the condenser enters the cylinder 1 through inlet 11, the gaseous and liquid refrigerants in the mixture are separated by outlet 13 at the top and outlet 12 at the bottom of the cylinder 1, respectively. Simultaneously, a float 22 inside the cylinder 1 monitors the volume of liquid refrigerant. When the liquid level rises, the float 22 drives the valve core 21 to move upwards synchronously via the transmission assembly 3, gradually blocking outlet 13 and reducing the exhaust flow rate. This increases the internal pressure of the cylinder 1, thereby increasing the flow rate of liquid refrigerant output from outlet 12. When the liquid level drops, the float 22 drives the valve core 21 to move synchronously through the transmission assembly 3, causing the valve core 21 to gradually open the vent 13, increasing the exhaust flow of the vent 13, thereby reducing the internal pressure of the cylinder 1 and reducing the flow rate of liquid refrigerant output from the liquid outlet 12. The adjusting mechanism 2 allows the economizer to automatically adjust the output flow rate according to the state of the liquid refrigerant inside the cylinder 1, avoiding the drawbacks of electronic components not being able to operate for extended periods in low-temperature environments. This not only reduces manufacturing costs but also maintenance costs during use, eliminating the need for frequent parts replacement and improving the efficiency of the refrigeration system. Specifically, the transmission assembly 3 includes a first slide rail 31 vertically arranged inside the cylinder 1 and a first slider 32 slidably arranged on the first slide rail 31. The float 22 and the valve core 21 are both fixedly connected to the first slider 32. By fixing both the valve core 21 and the float 22 to the first slider 32, it is easy to realize the drive of the float 22 to the valve core 21. At the same time, the movement path of the float 22 is restricted by the first slide rail 31 to ensure that when the float 22 drives the valve core 21 to move upward, the valve core 21 can accurately block the air outlet 13.

[0026] In a more preferred embodiment, an annular baffle 14 is provided inside the cylinder 1. The upper end of the baffle 14 extends outward and connects to the inner wall of the cylinder 1. The outer wall of the baffle 14 and the inner wall of the cylinder 1 form a flow channel for the gas-liquid mixed refrigerant to pass through (i.e., shown by reference numeral a in the figure). The inlet 11 is connected to this flow channel, and the adjusting mechanism 2 is located inside the baffle 14. By blocking the gas-liquid mixed refrigerant input through the inlet 11 by the baffle 14, the mixed refrigerant enters the cylinder 1 and flows downward along the flow channel formed by the baffle 14. On the one hand, this prevents the gas-liquid mixed refrigerant from impacting the float 22 and affecting the opening adjustment of the outlet 13. On the other hand, it prevents the mixed refrigerant from rushing to the outlet 13, causing liquid to be discharged from the outlet 13.

[0027] In a more preferred embodiment, at least one anti-vortex plate 15 is vertically provided at the bottom of the cylinder 1, with both ends of the anti-vortex plate 15 connected to the inner wall of the cylinder 1. The anti-vortex plate 15 forms a certain barrier and interference to the refrigerant flowing into the bottom of the cylinder 1, preventing the refrigerant from forming vortices inside the cylinder 1, thereby avoiding affecting the output flow rate of the liquid outlet 12 and also preventing the liquid outlet 12 from carrying gas.

[0028] In a more preferred embodiment, the ratio of the flow coefficient of the gaseous refrigerant output from the gas outlet 13 to the flow coefficient of the liquid refrigerant output from the liquid outlet 12 is 1, so as to maximize the heat exchange efficiency of the refrigeration system. Example 2

[0029] Reference Appendix Figures 2-3 The difference between this embodiment and Embodiment 1 is that the transmission assembly 3 includes a vertically arranged second slide rail 33, a second slider 34 slidably connected to the second slide rail 33, and a lever assembly 35 with one end connected to the second slider 34 that can both rotate and slide relative to it. The other end of the lever assembly 35 is rotatably connected to the float 22, and the valve core 21 is fixedly connected to the second slider 34. The movement path of the valve core 21 is restricted by the second slide rail 34 and the second slider 34, ensuring that the valve core 21 can move vertically below the outlet 13. Then, the displacement of the float 22 is converted into the drive of the valve core 21 by the lever assembly 35, so that the valve core 21 can adjust the opening degree of the outlet according to the liquid level of the liquid refrigerant in the cylinder 1. Furthermore, the transmission through the lever assembly 35 can also adjust the ratio of the movement distance of the float 22 to the movement distance of the valve core 21 by setting the length ratio on both sides of the lever fulcrum, so as to more accurately adjust the relative relationship between the liquid level and the opening degree of the outlet 13.

[0030] In a more preferred embodiment, the lever assembly 35 includes a first lever 351 rotatably disposed about a fixed first pivot 355 and connected at one end to the second slider 34 in a manner that allows for both relative rotation and relative sliding; a third slide rail 352 vertically disposed between the second slide rail 33 and the float 22; a connecting rod 353 slidably connected in the third slide rail 352; and a second lever 354 rotatably disposed about a fixed second pivot 356 and connected at one end to the connecting rod 353 in a manner that allows for both relative rotation and relative sliding. The other end of the first lever 351 is connected to the connecting rod 353 in a manner that allows for both relative rotation and relative sliding, and the other end of the second lever 354 is rotatably connected to the float 22. Through the linkage of the first lever 351, the connecting rod 353, and the second lever 354, the valve core 21 can move upward synchronously when the float 22 rises, and the valve core 21 can descend synchronously when the float 22 sinks, thereby realizing the driving of the valve core 21 by the float 22.

[0031] In a more preferred embodiment, a first groove 3511 is provided on the first lever 351 along its length direction. The pivot between the second slider 34 and the first lever 351, as well as the pivot between the connecting rod 353 and the first lever 351, can be slidably disposed in the first groove 3511, thereby realizing a connection relationship between the first lever 351 and the second slider 34 that can both rotate relative to each other and slide relative to each other.

[0032] In a more preferred embodiment, a second groove 3541 is provided on the second lever 354 along its length direction, and the pivot between the connecting rod 353 and the second lever 354 is slidably disposed in the second groove 3541, thereby realizing a connection relationship between the second lever 354 and the connecting rod 353 that can both rotate relative to each other and slide relative to each other.

[0033] In a more preferred embodiment, the transmission assembly 3 further includes a vertically arranged fourth slide rail 36 and a third slider 37 slidably disposed in the fourth slide rail 36. The float 22 is fixedly connected to the third slider 37, and the pivot between the float 22 and the second lever 354 is slidably disposed in the second groove 3541. By restricting the movement path of the float 22 through the fourth slide rail 36 and the third slider 37, the float 22 can move vertically within the cylinder 1 in a fixed posture, improving the accuracy of the float 22's feedback on the liquid refrigerant level, thereby improving the adjustment precision. Example 3

[0034] Reference Appendix Figure 4The difference between this embodiment and embodiment 2 is that the air outlet 13 is installed on the upper part of the side wall of the cylinder 1, and the end of the air outlet 13 located inside the cylinder 1 faces upward. The valve core 21 is located above one end of the air outlet 13. The lever assembly 35 includes a third lever 358 rotatably disposed between the second slide rail 33 and the float 22 around a fixedly disposed third rotating shaft 357, and a third sliding groove 3581 opened on the surface of the third lever 358 along the length direction of the third lever 358. The two ends of the third lever 358 are rotatably connected to the second slider 34 and the float 22 respectively, and the rotating shaft between the third lever 358 and the second slider 34 is slidably connected in the third sliding groove 3581. By setting the air outlet 13 to an L-shape with the inside facing upwards, the lever assembly 35 can make the float 22 float up with only a single lever. Then the valve core 21 gradually blocks the air outlet 13, and the float 22 moves down. Then the valve core 21 gradually opens the air outlet 13. By simplifying the structure of the lever assembly 35, the ease of assembly and durability of the economizer are improved.

[0035] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:

[0036] The flash barrel economizer of this invention regulates the flow rates of gas and liquid refrigerant output through an adjustment mechanism consisting of a float, valve core, and transmission components. This achieves separation and regulation of the gas-liquid mixture output from the condenser, improving the heat exchange efficiency of the evaporator and reducing the compressor load. Furthermore, the economizer automatically adjusts the output flow rates of gaseous and liquid refrigerant based on the state of the refrigerant within the barrel. This avoids the drawbacks of relying on sensors and other electronic components that are prone to aging and require frequent replacement. It not only reduces manufacturing and maintenance costs but also improves the efficiency of the refrigeration system.

[0037] The above embodiments are only for illustrating the technical concept and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be used to limit the protection scope of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the protection scope of this utility model.

Claims

1. A flash drum economizer characterized by: The application relates to a refrigerant regulating device, which comprises a cylinder (1), an input port (11) arranged on the cylinder (1) and used for connecting with the outlet of a condenser and conveying gas-liquid mixed refrigerant into the cylinder (1), a liquid outlet (12) arranged on the lower part of the cylinder (1) and used for connecting with the inlet of an evaporator and outputting liquid refrigerant, a gas outlet (13) arranged on the upper part of the cylinder (1) and used for connecting with the suction port of a compressor or the gas supplement port of the compressor and outputting gaseous refrigerant, a regulating mechanism (2) arranged in the cylinder (1) and used for controlling the exhaust flow of the gas outlet (13), the regulating mechanism (2) comprising a valve core (21) arranged on the gas outlet (13) and capable of moving up and down and sealing or opening the gas outlet (13) by moving, a floating ball (22) arranged in the cylinder (1) and used for driving the valve core (21), a transmission assembly (3) connected between the valve core (21) and the floating ball (22), the end of the valve core (21) being tapered towards the gas outlet (13), the floating ball (22) having a first position and a second position below the first position in the cylinder (1), the regulating mechanism (2) having at least two working states, when the regulating mechanism (2) is in a first working state, the floating ball (22) is in the first position, the end of the valve core (21) is inserted into the gas outlet (13) and seals the gas outlet (13); when the regulating mechanism (2) is in a second working state, the floating ball (22) is in the second position, and the end of the valve core (21) is separated from the gas outlet (13) so that the gas outlet (13) is opened.

2. The flash tank economizer of claim 1, wherein: The transmission assembly (3) comprises a first sliding rail (31) arranged vertically in the cylinder (1), and a first sliding block (32) arranged on the first sliding rail (31) and capable of sliding, the floating ball (22) and the valve core (21) being fixedly connected with the first sliding block (32).

3. The flash tank economizer of claim 1, wherein: The transmission assembly (3) comprises a second sliding rail (33) arranged vertically, a second sliding block (34) connected with the second sliding rail (33) and capable of sliding, a lever assembly (35) having one end rotatably and slidably connected with the second sliding block (34), and the other end of the lever assembly (35) being rotatably connected with the floating ball (22), and the valve core (21) being fixedly connected with the second sliding block (34).

4. The flash tank economizer of claim 3, wherein: The lever assembly (35) comprises a first lever (351) rotatably arranged around a fixed first rotating shaft (355) and connected with one end of the second sliding block (34) in a manner that the first lever (351) can rotate and slide relative to the second sliding block (34), a third sliding rail (352) vertically arranged between the second sliding rail (33) and the floating ball (22), a connecting rod (353) slidably connected in the third sliding rail (352), a second lever (354) rotatably arranged around a fixed second rotating shaft (356) and connected with one end of the connecting rod (353) in a manner that the second lever (354) can rotate and slide relative to the connecting rod (353), and the other end of the first lever (351) is connected with the connecting rod (353) in a manner that the first lever (351) can rotate and slide relative to the connecting rod (353), and the other end of the second lever (354) is rotatably connected with the floating ball (22).

5. The flash tank economizer of claim 4, wherein: A first sliding groove (3511) is formed in the first lever (351) along the length direction of the first lever (351), and the rotating shaft between the second sliding block (34) and the first lever (351) and the rotating shaft between the connecting rod (353) and the first lever (351) are slidably arranged in the first sliding groove (3511).

6. The flash tank economizer of claim 4, wherein: A second sliding groove (3541) is formed in the second lever (354) along the length direction of the second lever (354), and the rotating shaft between the connecting rod (353) and the second lever (354) is slidably arranged in the second sliding groove (3541), and the transmission assembly (3) further comprises a fourth sliding rail (36) vertically arranged, and a third sliding block (37) slidably arranged in the fourth sliding rail (36), the floating ball (22) is fixedly connected with the third sliding block (37), and the rotating shaft between the floating ball (22) and the second lever (354) is slidably arranged in the second sliding groove (3541).

7. The flash tank economizer of claim 3, wherein: The air outlet (13) is arranged on the upper portion of the side wall of the cylinder (1), and one end of the air outlet (13) inside the cylinder (1) faces upward, the valve core (21) is arranged above one end of the air outlet (13), and the lever assembly (35) comprises a third lever (358) rotatably arranged between the second sliding rail (33) and the floating ball (22) around a fixed third rotating shaft (357), and a third sliding groove (3581) is formed in the surface of the third lever (358) along the length direction of the third lever (358), the two ends of the third lever (358) are rotatably connected with the second sliding block (34) and the floating ball (22) respectively, and the rotating shaft between the third lever (358) and the second sliding block (34) is slidably connected in the third sliding groove (3581).

8. The flash tank economizer of claim 1, wherein: An annular baffle (14) is arranged in the cylinder (1), the upper end of the baffle (14) extends outward and is connected with the inner wall of the cylinder (1), the outer wall of the baffle (14) and the inner wall of the cylinder (1) form a flow channel for the gas-liquid mixed refrigerant, the input port (11) is communicated into the flow channel, and the adjusting mechanism (2) is located on the inner side of the baffle (14).

9. The flash tank economizer of claim 1, wherein: The bottom of the cylinder (1) is vertically provided with at least one anti-vortex plate (15), both ends of the anti-vortex plate (15) are connected to the inner wall of the cylinder (1) respectively.

10. The flash tank economizer of claim 1, wherein: The ratio of the flow coefficient of the gaseous refrigerant output by the gas outlet (13) to the flow coefficient of the liquid refrigerant output by the liquid outlet (12) is 0.5-2.

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