Gas-liquid separator with multiple gas-liquid separation effects

Abstract

The utility model discloses a gas-liquid separator with multiple gas-liquid separation effects. The gas-liquid separator comprises a tank body, a gas inlet and a gas outlet, the gas inlet and the gas outlet are communicated with the interior of the tank body, and a U-shaped bend communicated with the gas outlet is arranged in the tank body; a baffle and a guide pipe communicated with the air inlet are arranged in the tank body, and the baffle is located between the air inlet end of the U-shaped bend and the air outlet end of the guide pipe. The gas-liquid separator has the effect of improving the gas-liquid separation effect of the gas-liquid separator.

Description

Technical Field

[0001] The present application relates to the field of gas-liquid separation equipment, and in particular to a gas-liquid separator with multiple gas-liquid separation effects. Background Art

[0002] Gravity separation is a more common gas-liquid separation method in horizontal gas-liquid separators. Due to the different specific gravities of gas and liquid, when the liquid flows with the gas, the liquid will be affected by gravity to a greater extent, resulting in a downward speed, while the gas still flows in the original direction. In other words, the liquid and gas tend to separate in the gravity field, and the downward liquid adheres to the wall, gathers together, and is discharged through the discharge pipe.

[0003] In related technologies, such as Figure 1 As shown, the air inlet and outlet of the horizontal gas-liquid separator are both arranged on the top of the gas-liquid separator tank body, and the air outlet is provided with a U-shaped bend inside the gas-liquid separator, and the U-shaped bend leads to the top wall of the gas-liquid separator tank body. The refrigerant gas-liquid mixture enters the tank body from the air inlet and flows from one end of the tank body to the other end. The purpose of gravity liquid separation is achieved during the flow process, and the gas flows out of the tank body from the U-shaped bend and the air outlet, and the liquid is deposited at the bottom of the gas-liquid separator. The advantage is the simple structure, while the disadvantage is the poor gas-liquid separation effect, and only gas-liquid separation with a small liquid content can be achieved, so there is still room for improvement. Summary of the invention

[0004] In order to improve the gas-liquid separation effect of the gas-liquid separator, the present application provides a gas-liquid separator with multiple gas-liquid separation effects.

[0005] The present application provides a gas-liquid separator with multiple gas-liquid separation effects, which adopts the following technical solution:

[0006] A gas-liquid separator with multiple gas-liquid separation effects comprises a tank body and an air inlet and an air outlet connected to the interior of the tank body, wherein a U-shaped bend connected to the air outlet is arranged inside the tank body; a baffle and a guide pipe connected to the air inlet are arranged inside the tank body, and the baffle is located between the air inlet end of the U-shaped bend and the air outlet end of the guide pipe.

[0007] By adopting the above technical scheme, the gas-liquid mixture is transported into the tank body through the air inlet, and the guide pipe and the U-shaped bend are separated by a baffle. The gas-liquid mixture is discharged from the air outlet end of the guide pipe under the guidance of the guide pipe. In the process of the gas-liquid mixture flowing in the tank body toward the air inlet end of the U-shaped bend, gravity separation is realized. Since the baffle is arranged in the flow path of the gas-liquid mixture, the gas-liquid mixture is deflected and separated when passing through the baffle. The gas-liquid mixture flows along the surface of the baffle and gravity separation is performed during the flow. The liquid adheres to the surface of the baffle and is gathered together downward under the action of its own gravity. In addition, the blocking effect of the inner wall of the tank body plays a role of deflection and separation for the gas-liquid mixture. After multiple separations, the gas separated from the gas-liquid mixture enters the air inlet end of the U-shaped bend and is discharged out of the tank body under the guidance of the U-shaped bend, which is beneficial to improve the gas-liquid separation effect of the gas-liquid separator.

[0008] Preferably, the gas outlet end of the guide pipe is arranged away from the baffle and extends to the inner end wall of the tank body.

[0009] By adopting the above technical solution, the guide pipe guides the gas-liquid mixture to the inner end wall of the tank body, thereby maximizing the flow distance of the gas-liquid mixture. The gas-liquid mixture first passes through the obstruction of the inner end wall of the tank body and then deflects. Then the gas-liquid mixture passes through the baffle and undergoes a second deflection, which is beneficial to improving the gas-liquid separation effect through multiple deflections.

[0010] Preferably, the baffle is provided with a plurality of through holes.

[0011] By adopting the above technical solution, the baffle coverage area can be increased, the contact area between the gas-liquid mixture and the baffle can be increased, and the deflection effect can be improved. At the same time, by opening through holes for the gas-liquid mixture to pass through, it is beneficial to improve the gas-liquid separation effect of the gas-liquid separator.

[0012] Preferably, the baffle is arranged at an angle.

[0013] By adopting the above technical solution, the baffle is set in an inclined state to increase the overall length of the baffle, thereby increasing the contact time between the gas-liquid mixture and the baffle surface, which is beneficial to improving the gas-liquid separation effect of the gas-liquid separator.

[0014] Preferably, the axis of the gas outlet end of the guide pipe coincides with the axis of the tank body.

[0015] By adopting the above technical solution, the gas outlet end of the guide tube is located in the center of the end of the tank body, so as to increase the contact area between the inner end wall of the tank body and the gas-liquid mixture, which is beneficial to improve the deflection and separation effect of the inner end wall of the tank body on the gas-liquid mixture.

[0016] Preferably, the air outlet end of the guide tube is provided with an oblique cut, and the oblique cut is arranged downward.

[0017] By adopting the above technical solution, the oblique cut guides the gas-liquid mixture downward, so that part of the gas-liquid mixture flows along the inner end wall of the guide tube to the bottom of the tank body, fully improving the contact probability between the inner wall of the tank body and the gas-liquid mixture, which is beneficial to improving the gas-liquid separation effect of the gas-liquid separator.

[0018] Preferably, a liquid outlet is provided at the bottom of the tank body, and a liquid level float valve is provided at the liquid outlet.

[0019] Since the liquid after the separation of the gas-liquid mixture will still exist inside the gas-liquid separator, this part of the liquid will affect the gas-liquid separation effect after accumulating to a certain height, and even when the liquid level is too high, the refrigerant gas will take away the liquid, seriously affecting the gas-liquid separation effect. By adopting the above technical scheme, the liquid separated from the gas-liquid mixture is deposited at the bottom of the tank body. When the liquid level rises, the liquid level float valve opens, and the deposited liquid is discharged from the tank body through the liquid outlet, which is conducive to improving the problem of poor gas-liquid separation effect caused by liquid deposition.

[0020] Preferably, two supporting parts are provided at the bottom of the tank body, both of which extend into the interior of the tank body, and the two supporting parts and the inner bottom wall of the tank body form a liquid collecting trough, the liquid outlet is located at the liquid collecting trough, and the inclined lower end of the baffle extends into the liquid collecting trough.

[0021] By adopting the above technical solution, the two supporting parts serve as the supporting structure for supporting the tank body, and extend into the interior of the tank body to form a liquid collecting groove with the bottom wall of the tank body, so as to collect the separated liquid. When a certain amount of liquid exists, the liquid level float valve can be opened, which is conducive to the timely discharge of the liquid in the tank body.

[0022] Preferably, an air collecting bag is provided on the top of the tank body, and the air inlet end of the U-shaped bend extends into the air collecting bag.

[0023] By adopting the above technical solution, the gas collecting bag plays the role of collecting gas, and the gas floats up and is concentrated in the gas collecting bag, which makes it easy to discharge the gas out of the tank body through the U-bend.

[0024] In summary, the present application includes at least one of the following beneficial technical effects:

[0025] 1. Use an inclined baffle with a through hole to separate the guide pipe and the U-shaped bend. The gas-liquid mixture is discharged from the gas outlet end of the guide pipe under the drainage of the guide pipe. The gas-liquid mixture realizes gravity liquid separation in the process of flowing from the tank body to the gas inlet end of the U-shaped bend. When the gas-liquid mixture passes through the baffle, it is deflected and separated. The gas-liquid mixture flows along the surface of the baffle and is gravity separated during the flow. The liquid adheres to the surface of the baffle and is gathered together downward under the action of its own gravity. In addition, the obstruction of the inner wall of the tank body plays a role of deflection and separation for the gas-liquid mixture. After multiple separations, the gas separated from the gas-liquid mixture enters the gas inlet end of the U-shaped bend and is discharged from the tank body under the guidance of the U-shaped bend, which is conducive to improving the gas-liquid separation effect of the gas-liquid separator;

[0026] 2. Using an inclined baffle with through holes as a blocking member can increase the baffle coverage area and the contact time with the gas-liquid mixture, increase the contact area between the gas-liquid mixture and the baffle, and thus improve the baffle effect;

[0027] 3. By setting the drain port and the liquid level float valve, when the liquid level rises, the liquid level float valve opens, and the deposited liquid is discharged out of the tank body through the liquid outlet, which is helpful to improve the problem of poor gas-liquid separation effect caused by liquid deposition. It will only open when there is a liquid level to prevent the refrigerant from entering the tank body from the drain port, reduce the probability of refrigerant flow short circuit in the evaporator, and reduce the impact on the refrigeration effect of the evaporator. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of a horizontal gas-liquid separator in the related technology.

[0029] Figure 2 It is a structural schematic diagram of a gas-liquid separator with multiple gas-liquid separation effects according to an embodiment of the present application.

[0030] Explanation of the reference numerals in the accompanying drawings: 1. tank body; 2. air inlet; 3. air outlet; 4. U-shaped bend; 41. air outlet end; 5. guide pipe; 51. air outlet end; 52. oblique cut; 6. baffle; 61. through hole; 7. air collecting bag; 8. safety valve port; 9. liquid outlet; 10. oil return port; 11. liquid level float valve; 12. support portion; 13. liquid collecting tank. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-2 This application is described in further detail.

[0032] Reference Figure 1In the related art, the horizontal gas-liquid separator includes a tank body 1 and an air inlet 2 and an air outlet 3 arranged on the top of the tank body 1. The air outlet 3 is provided with a U-shaped bend 4 inside the tank body 1. The U-shaped bend 4 leads to the top wall of the tank body 1 of the gas-liquid separator. The refrigerant gas-liquid mixture enters the tank body 1 from the air inlet 2 and flows from one end of the tank body 1 to the other end. The purpose of gravity liquid separation is achieved during the flow process. The gas flows out of the tank body 1 from the U-shaped bend 4 and the air outlet 3, and the liquid is deposited at the bottom of the gas-liquid separator. There is a problem of poor gas-liquid separation effect, and only gas-liquid separation with a small liquid content can be achieved. Moreover, because the liquid still exists inside the gas-liquid separator, this part of the liquid will affect the gas-liquid separation effect after accumulating to a certain height. Even if the liquid level is too high, the gas will take away the liquid, which will seriously affect the gas-liquid separation effect.

[0033] The embodiment of the present application discloses a gas-liquid separator with multiple gas-liquid separation effects, referring to FIG. 2 , comprising a tank body 1 and an air inlet 2 and an air outlet 3 connected to the inside of the tank body 1. The air inlet 2 is arranged on the side of the tank body 1, and an L-shaped and horizontally arranged guide pipe 5 is installed inside the tank body 1. The extension direction of the air outlet end 51 of the guide pipe 5 coincides with the axial direction of the tank body 1, and the air outlet end 51 of the guide pipe 5 extends to one of the inner end walls of the tank body 1. Among them, the gas outlet end 51 of the guide pipe 5 is provided with an oblique cut 52, and the oblique cut 52 is arranged downward. The gas-liquid mixture entering from the gas inlet 2 is sent toward the inner end wall of the tank body 1 under the guidance of the guide pipe 5, and is baffled and separated by the obstruction of the inner end wall of the tank body 1. The oblique cut 52 guides the gas-liquid mixture downward, so that part of the gas-liquid mixture flows along the inner end wall of the guide pipe 5 to the bottom of the tank body 1, fully improving the contact probability between the inner wall of the tank body 1 and the gas-liquid mixture, which is beneficial to improving the gas-liquid separation effect of the gas-liquid separator.

[0034] A baffle 6 and a U-shaped bend 4 connected to the air outlet 3 are fixedly installed inside the tank body 1. The baffle 6 is located between the air inlet end 41 of the U-shaped bend 4 and the air outlet end 51 of the guide tube 5, and the air outlet end 51 of the guide tube 5 extends in a direction away from the baffle 6. Among them, an air collecting bag 7 is arranged on the top of the tank body 1, and the air inlet end 41 of the U-shaped bend 4 extends into the air collecting bag 7. The air inlet end 41 of the U-shaped bend 4 and the air outlet end 51 of the guide tube 5 are respectively located at both ends of the tank body 1 to extend the flow distance of the gas-liquid mixture. The gas-liquid mixture realizes gravity separation during the flow process in the tank body 1 toward the air inlet end 41 of the U-shaped bend 4. Since the baffle 6 is arranged in the flow path of the gas-liquid mixture, the gas-liquid mixture is deflected and separated when passing through the baffle 6. The gas-liquid mixture flows along the surface of the baffle 6, and gravity separation is performed during the flow process. The liquid adheres to the surface of the baffle 6 and is gathered together downward under the action of its own gravity. In addition, the baffle 6 is provided with a number of evenly distributed through holes 61 along its thickness direction, and the ratio between the aperture size of the through hole 61 and the spacing size of adjacent through holes 61 is 1:4, thereby increasing the coverage area of ​​the baffle 6, increasing the contact probability between the gas-liquid mixture and the baffle 6, and further improving the baffle separation effect. At the same time, by providing the through holes 61 for the gas-liquid mixture to pass through, it is beneficial to improve the gas-liquid separation effect of the gas-liquid separator.

[0035] In this embodiment, the baffle 6 is arranged obliquely. The inclined lower end of the baffle 6 extends in a direction away from the gas outlet end 51 of the guide tube 5, and the baffle 6 is arranged in an inclined state to increase the overall length of the baffle 6, thereby increasing the contact time between the gas-liquid mixture and the surface of the baffle 6, which is beneficial to improving the gas-liquid separation effect of the gas-liquid separator.

[0036] In order to facilitate the discharge of the liquid in the tank body 1, a liquid outlet 9 is provided at the bottom of the tank body 1, and a liquid level float valve 11 is provided at the liquid outlet 9. When the liquid level in the tank body 1 rises, the liquid level float valve 11 opens, and the deposited liquid is discharged from the tank body 1 through the liquid outlet 9, which is conducive to improving the problem of poor gas-liquid separation effect caused by liquid deposition.

[0037] In addition, two supporting parts 12 are provided at the bottom of the tank body 1, and the supporting parts 12 are composed of L-shaped steel plates. The two supporting parts 12 extend into the interior of the tank body 1, and the two supporting parts 12 and the inner bottom wall of the tank body 1 form a liquid collecting tank 13, and the liquid outlet 9 is located at the bottom of the liquid collecting tank 13, and the inclined lower end of the baffle 6 extends into the liquid collecting tank 13, and there is a certain distance between the inclined lower end of the baffle 6 and the bottom of the liquid collecting tank 13. The liquid collecting tank 13 is convenient for collecting the separated liquid. When a certain amount of liquid is present, the liquid level float valve 11 is opened, which is conducive to timely discharge of the liquid in the tank body 1.

[0038] In this embodiment, a safety valve port 8 is installed on the top of the tank body 1, and an oil return port 10 is provided at the bottom of the tank body 1. The setting of the safety valve keeps the pressure in the tank body 1 within the allowable pressure range, thus playing a role of safety protection.

[0039] The implementation principle of a gas-liquid separator with multiple gas-liquid separation effects in the embodiment of the present application is as follows: the gas-liquid mixture enters from the air inlet 2 on the side of the tank body 1, and is led to one of the inner end walls of the tank body 1 through the guide pipe 5, and is baffled and separated by the obstruction of the inner end wall of the tank body 1. The oblique cut 52 guides the gas-liquid mixture downward, so that part of the gas-liquid mixture flows along the inner end wall of the guide pipe 5 to the bottom of the tank body 1. When the gas-liquid mixture passes through the baffle 6, it is baffled and separated. The gas-liquid mixture flows along the surface of the baffle 6, and gravity separation is performed during the flow. The liquid adheres to the surface of the baffle 6 and is gathered together downward under the action of its own gravity. The separated gas is gathered at the gas collecting bag 7 on the top of the tank body 1 and is discharged out of the tank body 1 through the U-bend 4. The multiple separation effects are beneficial to improving the gas-liquid separation effect of the gas-liquid separator.

[0040] In this embodiment, the liquid outlet 9 is connected to the evaporator, and the separated liquid is deposited in the liquid collecting tank 13 at the bottom of the tank body 1. After the liquid level rises, the liquid level float valve 11 opens, and the refrigerant liquid flows back into the evaporator from the liquid outlet 9. By setting the liquid level float valve 11 at the liquid outlet 9, it will only open when there is a liquid level, thereby preventing the refrigerant from entering the tank body 1 from the drain port. If the refrigerant enters from the drain port, it will not only bring a large amount of refrigerant liquid to the gas-liquid separator, but also cause the refrigerant flow in the evaporator to short-circuit, affecting the refrigeration effect of the evaporator.

[0041] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A gas-liquid separator with multiple gas-liquid separation effects, comprising a tank body (1) and an air inlet (2) and an air outlet (3) connected to the inside of the tank body (1), wherein a U-shaped bend (4) connected to the air outlet (3) is arranged inside the tank body (1), characterized in that The tank body (1) is provided with a baffle (6) and a guide pipe (5) connected to the air inlet (2), and the baffle (6) is located between the air inlet end (41) of the U-shaped bend (4) and the air outlet end (51) of the guide pipe (5).

2. The gas-liquid separator with multiple gas-liquid separation effects according to claim 1, characterized in that: The gas outlet end (51) of the guide pipe (5) is arranged in a direction away from the baffle (6) and extends to the inner end wall of the tank body (1).

3. The gas-liquid separator with multiple gas-liquid separation effects according to claim 2, characterized in that: The baffle (6) is provided with a plurality of through holes (61).

4. A gas-liquid separator with multiple gas-liquid separation effects according to claim 2 or 3, characterized in that: The baffle (6) is arranged obliquely.

5. The gas-liquid separator with multiple gas-liquid separation effects according to claim 1, characterized in that: The axis of the gas outlet end (51) of the guide pipe (5) coincides with the axis of the tank body (1).

6. A gas-liquid separator with multiple gas-liquid separation effects according to claim 1 or 5, characterized in that: The air outlet end (51) of the guide tube (5) is provided with an oblique cut (52), and the oblique cut (52) is arranged downward.

7. The gas-liquid separator with multiple gas-liquid separation effects according to claim 1, characterized in that: The bottom of the tank body (1) is provided with a liquid outlet (9), and the liquid outlet (9) is provided with a liquid level float valve (11).

8. The gas-liquid separator with multiple gas-liquid separation effects according to claim 7, characterized in that: The bottom of the tank body (1) is provided with two supporting parts (12), both of which extend into the interior of the tank body (1), and the two supporting parts (12) and the inner bottom wall of the tank body (1) form a liquid collecting groove (13), the liquid outlet (9) is located at the liquid collecting groove (13), and the inclined lower end of the baffle (6) extends into the liquid collecting groove (13).

9. The gas-liquid separator with multiple gas-liquid separation effects according to claim 1, characterized in that: An air collecting bag (7) is arranged on the top of the tank body (1), and the air inlet end (41) of the U-shaped bend (4) extends into the air collecting bag (7).

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