WO2019119875A1

WO2019119875A1 - Flow equalizing plate, oil separator, condenser and flash-tank

Info

Publication number: WO2019119875A1
Application number: PCT/CN2018/103990
Authority: WO
Inventors: 王铁强; 胡东兵; 陈增辉; 杨旭峰; 胡海利; 赵艳
Original assignee: 格力电器（武汉）有限公司; 珠海格力电器股份有限公司
Priority date: 2017-12-21
Filing date: 2018-09-04
Publication date: 2019-06-27
Also published as: CN107917638B; CN107917638A

Abstract

Disclosed are a flow equalizing plate (1), an oil separator, a condenser and a flash-tank. The flow equalizing plate (1) comprises a plate body (11), with at least one side edge of the plate body (11) being provided with a plurality of liquid passage notches (12) in a length direction of the plate body (11), such that accumulated liquid drops on the plate body (11) flow back to a position below the plate body (11) via the liquid passage notches (12). The plurality of liquid passage notches (12) are provided on the side edge of the plate body (11) of the flow equalizing plate (1), and a flow guide channel for the accumulated liquid drops on the plate body (11) can be formed between a wall face connected to the flow equalizing plate (1) and the liquid passage notches (12), such that the accumulated liquid drops can flow to a position below the flow equalizing plate (1) via the liquid passing notches (12), and the influence of fluid in other directions on a downward back-flow effect of the accumulated liquid drops can be reduced, thereby improving the separation effect of the flow equalizing plate (1) on a gaseous medium and a liquid medium.

Description

Current sharing plate, oil separator, condenser and flasher

Technical field

The invention relates to the field of refrigeration, and in particular to a flow equalization plate, an oil separator, a condenser and a flasher.

Background technique

In air conditioning refrigeration systems, pressure vessels are the main components, such as evaporators, condensers, oil separators, flashers, etc., which occupy a large space throughout the system. With a variety of user needs, the market is focused on small size and high performance. This is also the development of both technical and structural concepts, and the built-in oil separator has developed rapidly, and various new structures and forms have emerged. However, the research focus of the built-in oil separator is not only to save the unit space, but also the mechanism analysis of the separation effect. In the built-in oil separator with the same total volume and constant power consumption, the internal component structure determines the ability to separate oil and gas. Even after the structure is optimized, the occupied space will be reduced. The flow state and process of the airflow in the built-in oil separator are complicated, and the specific laws are difficult to find.

Summary of the invention

The existing built-in oil separator is usually disposed above the inside of the condenser, and the cross-sectional shape of the built-in oil separator is limited in order to coordinate the effective arrangement of the condensing duct. In turn, the internal component design is adapted to the vapor-liquid separation mechanism, and the appropriate adjustment is made to fit the internal oil separator shape structure. However, in the case where the separation effect of the vapor-liquid separator is determined in the structure, the flow field state has the greatest influence on the separation effect.

The inventors have found through research that the rational design of the flow equalization plate has an important influence on the separation effect. Specifically, the existing current sharing plate not only plays the equal gas effect, but also hits the filter after the oil and gas mixture passes through the current equalizing plate. The gas enters the condenser through the filter, and the oil droplets are blocked under the filter screen, dripping down the gravity, and returning to the oil accumulation tank through the small holes of the flow equalization plate. In this process, the amount of oil droplets falling back plays a crucial role in the separation of the entire oil separator. However, due to the continuous flow of air around the small holes in the flow equalization plate, the accumulated oil droplet return resistance is large, which in turn affects the separation effect of the oil separator.

In view of this, the present invention provides a current equalizing plate, an oil separator, a condenser, and a flasher, which can improve the separation effect of a gaseous medium and a liquid medium.

In order to achieve the above object, the present invention provides a current equalizing plate comprising a plate body, and a plurality of liquid passing grooves are disposed on at least one side of the plate body along a length direction of the plate body, so that the plate Deposited droplets above the body flow back through the overflow tank below the plate.

Further, a plurality of flow sharing holes are distributed on the surface of the plate between the two sides of the plate body, so that the gas-liquid mixture passes through the flow sharing hole from below the plate body to reach above the plate body.

Further, the liquid tank is curved, polygonal or a combination of a curved shape and a polygonal shape on the surface of the plate body.

Further, the polygon is a rectangle, a trapezoid or a triangle.

Further, the groove wall of the liquid tank is perpendicular to the surface of the plate body.

Further, the groove wall of the liquid tank is at a predetermined outer oblique angle with respect to the upper side surface of the plate body.

Further, the preset external oblique angle is 30° to 60°.

Further, the preset external oblique angle is 45°.

Further, a transitional blunt edge structure is further provided at a position where the groove wall of the liquid supply tank is close to the lower side of the plate body.

Further, the angle of inclination of the transitional blunt edge structure with respect to the upper side surface of the plate body is 90°.

Further, the total amount of the airflow in the over-tank does not exceed 1% of the total flow of the flow-through holes.

Further, the cross-sectional area of the liquid tank is greater than 300 mm ² .

To achieve the above object, the present invention provides an oil separator comprising: a casing, an oil and gas inlet, and the aforementioned flow equalizing plate.

Further, the oil and gas inlet is disposed at any one of the longitudinal direction of the casing, and the flow equalization plate extends from the end of the oil and gas inlet along the length of the casing to the other end of the casing.

Further, the oil and gas inlet is disposed at a position 1/2 of the length of the casing along the length direction of the casing, and the flow equalization plate includes a position along the length of the casing from the position of the oil and gas inlet respectively A first flow equalization plate section and a second flow equalization plate section extending to both ends of the housing.

Further, the oil and gas inlet is disposed at an offset position between a position 1/2 of the length of the housing along the length direction of the housing and an arbitrary end of the housing along the length direction, the current sharing plate The first and second flow slab segments extending from the offset position to the two ends of the housing respectively along the length direction of the housing, the length of the first current slab segment being greater than The length of the second equalizing plate segment.

Further, the number of the liquid tanks on the unit length is uniformly distributed from the side of the oil and gas inlet along the length direction of the current equalizing plate, or distributed from the first quantity to the second quantity, the first The number is less than the second quantity, or is distributed from the first quantity to the second quantity to the third quantity, the first quantity and the third quantity are both less than the second quantity.

Further, the number of the over-liquid tanks on the first and second equalizing plate sections on the unit length is respectively along the first current-saverage plate segment from the position of the oil and gas inlet And distributing the length direction of the second current equalizing plate segment evenly, or from the first quantity to the second quantity, the first quantity being less than the second quantity, or from the first quantity to the second quantity And distributed to a third quantity, the first quantity and the third quantity are both less than the second quantity.

Further, the first flow plate segment and the liquid flow channel on the second flow plate segment are symmetrically arranged.

Further, the number of the liquid tanks on the first equalizing plate section is uniformly distributed along the length direction of the first current collecting plate section from the position of the oil and gas inlet, or by the first a quantity distributed to a second quantity, the first quantity being less than the second quantity, or being distributed by a first quantity to a second quantity to a third quantity, the first quantity and the third quantity The number is less than the second quantity.

Further, the average number of the liquid tanks on the first equalizing plate section in unit length is higher than the average number of the liquid tanks on the second current collecting plate section in unit length.

Further, the number of the liquid tanks on the second equalizing plate section is uniformly distributed along the length direction of the second current collecting plate section from the position of the oil and gas inlet, or by the fourth a quantity distributed to a fifth quantity, the fourth quantity being less than the fifth quantity, or being distributed by a fourth quantity to a fifth quantity to a sixth quantity, the fourth quantity and the sixth quantity The number is less than the fifth number.

Further, the cross-sectional area of the liquid tank gradually increases from the side of the oil and gas inlet along the length of the current equalizing plate.

Further, a cross-sectional area of the over-fluid tank on the first equalizing plate section and the second even-flowing plate section is along the first flow-flow plate section and the The length direction of the second equalizing plate section gradually increases.

Further, a cross-sectional area of the liquid passing tank on the first equalizing plate section gradually increases from a position of the oil and gas inlet along a length direction of the first flow equalizing plate section.

Further, an average cross-sectional area of the over-liquid tank on the first equalizing plate section is larger than an average cross-sectional area of the over-liquid tank on the second equalizing plate section.

Further, a cross-sectional area of the over-liquid tank on the second equalizing plate section is the same or gradually increasing along a length direction of the second current-savering plate section from a position of the oil-gas inlet.

Further, the total length of the over-liquid tank on any side of the current equalizing plate in the longitudinal direction of the current-savering plate is not more than 1/3 of the total length of the side of the current-savering plate .

Further, the total length of the liquid passing tank on any side of the first equalizing plate section in the longitudinal direction of the current equalizing plate is not more than the side of the first current collecting plate segment 1/3 of the total length; and/or the total length of the over-fluid channel on either side of the second equalizing plate section in the length direction along the current-savering plate is not greater than the second The total length of the side of the flow plate section is 1/3.

Further, the invention further includes a gas liquid filter screen and the oil baffle plate, wherein the gas liquid filter screen, the flow plate and the oil baffle plate are disposed in the casing from top to bottom, and are disposed at the bottom of the casing There is a oil reservoir.

To achieve the above object, the present invention also provides a condenser comprising the aforementioned oil separator in a built-in form.

In order to achieve the above object, the present invention also provides a flasher comprising the aforementioned oil separator in a built-in form.

Based on the above technical solution, the present invention provides a plurality of liquid passing tanks on the side of the plate body of the flow equaling plate, and a flow guiding channel for depositing droplets above the plate body can be formed between the wall surface and the liquid passing tank connected to the flow sharing plate. The deposited droplets can flow below the flow equalization plate through the liquid flow tank, and can reduce the influence of fluids in other directions on the downward flow of the deposition droplets, thereby improving the separation effect of the flow plates on the gaseous medium and the liquid medium.

DRAWINGS

The drawings described herein are intended to provide a further understanding of the invention, and are intended to be a part of the invention. In the drawing:

1 is a schematic structural view of an embodiment of a flow equalizing plate of the present invention.

2 to 5 are schematic partial structural views of a plurality of embodiments of the flow equalizing plate of the present invention, respectively.

Figure 6 is a schematic structural view of an embodiment of a condenser of the present invention.

Figure 7 is a schematic cross-sectional structural view of an embodiment of the oil separator of the present invention.

8 to 9 are schematic views of the AA section and the BB section in Fig. 7, respectively.

Figure 10 is a schematic structural view of an embodiment of the oil and gas inlet of the oil separator of the present invention at an offset position.

Figure 11 is a schematic structural view of an embodiment of the oil and gas inlet of the oil separator of the present invention in an intermediate position.

Detailed ways

The technical solution of the present invention will be further described in detail below through the accompanying drawings and embodiments.

FIG. 1 is a schematic structural view of an embodiment of a current sharing plate of the present invention. In the present embodiment, the current equalizing plate 1 includes a plate body 11 on which a plurality of liquid passing grooves 12 are disposed along at least one side of the plate body 11 so that the plate body The deposited droplets above the 11 flow back through the overflow tank 12 back below the plate body 11.

In this embodiment, the liquid distribution tank is disposed on at least one side of the plate body, and a flow guiding channel for depositing droplets above the plate body can be formed between the wall surface connected to the flow regulating plate and the liquid passing tank, and the deposition liquid The droplets can flow down the flow plate through the liquid flow tank, and can reduce the influence of fluids in other directions on the downward flow of the deposition droplets, thereby improving the separation effect of the flow plates on the gaseous medium and the liquid medium.

In order to reduce the flow rate of the gas-liquid mixture and achieve gas-liquid separation, a plurality of equalizing holes 13 may be further distributed on the surface of the plate body 11 between the two side edges of the plate body 11 so that the gas-liquid mixture passes through The mean flow hole 13 reaches the upper side of the plate body 11 from below the plate body 11. For the equalizing holes 13, the gas-liquid mixed fluid medium flows from below through the equalizing holes 13 to the upper side of the plate body 11. The deposition droplets above the plate body 11 can flow through the liquid supply tank 12 to below the plate body 11. In this way, the deposited droplets can avoid the upward flow of the gas-liquid mixture in the flow-through hole 13 as much as possible, thereby reducing the influence of the gas-liquid mixture on the downward flow of the deposition droplets, thereby improving the flow medium and the liquid medium of the flow plate. The separation effect.

When the current equalizing plate of the present embodiment is applied to the oil separator, the flow equalizing plate is responsible for depositing oil droplets while separating the oil and gas mixture. The velocity can be redistributed as the oil and gas mixture passes through the flow equalization plate from bottom to top. Most of the oil will fall to the sump by impact separation, but still a portion of the oil enters the screen as it passes through the flow plate and is then blocked in the screen. When the oil droplet accumulation in the filter screen is large enough, it will drip along the side wall of the filter screen and the oil separator to the surface of the flow equalizer. The oil droplets on the side wall of the oil separator can be along the side wall and plate of the oil separator. The flow guiding channel formed between the liquid passing tanks on the side of the body flows downward, and the large oil droplets dripping onto the surface of the flow equalizing plate can be blown by the upward fluid and splashed on the side wall surface of the oil separator. Then, along the side wall surface, it flows downward from the liquid tank to the oil accumulation tank. Thus, through the arrangement of the above-mentioned liquid passing tank, the flow dead zone outside the flow sharing hole is solved, the backflow effect of the deposited liquid droplets is improved, the oil storage amount of the oil accumulation tank is improved, and the oil and gas separation effect of the oil separator is improved.

In another embodiment, the current equalizing plate 1 of the present invention can be applied to other gas-liquid separation devices, and the deposition droplets involved are not limited to lubricating oil, and may include liquid refrigerant, fuel oil, and the like. The functional functions realized by the flow plates in other gas-liquid separation devices can be referred to the functional functions in the oil separator, and will not be further described here.

2 to 5 are schematic partial structural views respectively showing a plurality of embodiments of the flow equalizing plate of the present invention. The liquid-passing groove 12 of the flow equalizing plate 1 may have various grooved shapes on the surface of the plate body 11, including a curved shape, a polygonal shape, or a combination of a curved shape and a polygonal shape. For example, the rectangular over-tank shown in Figure 5, the curved over-tank shown in Figure 4 (including a semi-circular over-tank), the trapezoidal over-tank shown in Figure 3, shown in Figure 2 Triangle over tank and so on. On one of the equalizing plates 1, the same type of grooved over-liquid tank 12 may be provided, or a plurality of grooved over-liquid tanks 12 may be provided.

The size of the various shapes of the liquid tank can be adjusted according to the structural processing difficulty. The size of various types of over-fluid tanks can be changed depending on the capacity and power consumption of the gas-liquid separation equipment (such as oil separators) used in the application. When selecting the tanks of different shapes, if the main considerations are processing difficulty and mass productivity, etc., it is possible to use a rectangular over-fluid tank and an arc-shaped liquid tank which are relatively easy to process, and the over-tank tank of this shape is also Suitable for mass production. If the main consideration is the oil returning ability, a structural form of a polygonal over-fluid tank such as a trapezoidal liquid tank and a triangular liquid tank having a stronger oil returning ability can be used. Such an over-liquid tank has an angular shape and can be used for falling droplets. It acts as a diversion and thus has better oil returning ability. In the actual design, experimental analysis of different shapes of the liquid tank can be carried out under different requirements to determine the optimal structure.

The liquid passing tank 12 is formed between the upper surface and the lower surface of the plate body 11, and the arrangement form of the groove wall that is in contact with the upper and lower surfaces also has a certain influence on the oil returning effect. In the embodiment of the flow equalizing plate of the present invention, the groove wall of the liquid passing tank 12 may be perpendicular to the surface of the plate body 11 (for example, the

liquid tanks

121a, 122a, 123a of various shapes in FIGS. 2 to 5 and 124a, etc., may also be provided with a predetermined outer oblique angle α with respect to the upper side surface of the plate body 11 (for example, the

liquid overflow grooves

121b, 122b, 123b, and 124b of various shapes in FIGS. 2 to 5, etc.). The wall of the vertical or outer oblique form can form a large and small flow guiding channel structure with the wall surface connected to the flow equaling plate, and the channel structure can promote the downward flow of the deposition droplets. For the groove wall of the outer oblique form, the preset outer oblique angle can be divided into two cases of a relative horizontal angle of 0° to 45° and 45° to 90°. During the change from 45° to 0°, the cross-sectional area changes rapidly, which is beneficial to reduce the airflow resistance, but the oil droplets are increased by the wall frictional resistance. During the change from 45° to 90°, the cross-sectional area abrupt ratio becomes smaller, and the oil droplets are reduced by the wall frictional resistance. Therefore, in general consideration, it is preferable that the preset external oblique angle is 30° to 60°, and the more preferable preset external oblique angle is 45°, thereby achieving both processing convenience and airflow resistance and oil return equalization.

In the case where the thickness of the plate body 11 is sufficient, a transitional blunt edge structure (for example, various shapes in FIGS. 2 to 5) may be further disposed at a position where the groove wall of the liquid supply tank 12 is adjacent to the lower side of the plate body 11.

Liquid tanks

121c, 122c, 123c, and 124c, etc.). The transitional blunt edge structure refers to a predetermined thickness position of the groove wall of the over-fluid tank 12 at a predetermined outer oblique angle (for example, 45°) (for example, 1/2 of the overall thickness based on the lower surface of the plate body 11) The inclination angle formed on the 1/3 or the like) (for example, 60° or 90°, etc., preferably 90°) is greater than the transition portion of the preset outer oblique angle and less than or equal to 90°. Referring to FIG. 2 to FIG. 5, the transitional blunt edge structure causes the groove wall of the liquid tank 12 to form an external oblique angle mutation effect in the thickness direction of the plate body 11, thereby realizing the sudden change of the cross section of the liquid tank 12, and utilizing this The effect of the cross-section abrupt change can reduce the resistance of the airflow received during the drop of the oil droplets. In order to improve production efficiency, it is also possible to select a structure that does not leave a blunt edge on the groove wall of the outer bevel.

The structure and quantity design of the liquid tank can mainly consider the relationship between the capacity of the gas-liquid separation device and the ratio of the total area of the flow holes. As the capacity of the gas-liquid separation device increases, the ratio of the area of the overflow tank can be appropriately increased. Preferably, the cross-sectional area of the single over-tank 12 is greater than 300 mm ² . However, in order to ensure the equalization effect of the flow holes, the total amount of gas flowing through the liquid flow tank 12 does not exceed 1% of the total gas flow of the flow holes 13.

FIG. 6 is a schematic structural view of an embodiment of a condenser of the present invention. In the condenser of the present embodiment, the oil separator A in the built-in form, and other components in the condenser, such as the condenser B and the like, are included. Referring to the oil separator embodiment shown in Figures 7-9, the oil separator A includes a housing, an oil and gas inlet 3, and an embodiment of any of the foregoing flow equalization plates 1. Wherein, the housing of the oil separator A shown in FIG. 7 may be formed by welding the side sealing plate 23, the axial end sealing plate 8, the oil return side sealing plate 9, the intermediate sealing plate 4, and the top sealing plate 2, and the like. Avoid leaks. The oil and gas inlet 3 may be disposed at either end of the housing along the length direction, such as the leftmost end shown in FIG.

In addition, the oil separator A may further include a gas liquid filter 6 and a baffle plate 21. The upper and lower sides of the gas-liquid filter 6 may be provided with a filter press plate 5 and a filter lower press plate 7, respectively. The gas-liquid filter 6, the flow plate 1 and the oil-retaining plate 21 are disposed in the casing from top to bottom, and an oil accumulation groove 22 is provided at the bottom of the casing. The oil return port 10 on one side of the oil accumulation tank 22 (for example, away from the rightmost end of the oil and gas inlet 3).

Referring to Fig. 7, in the oil separator A of the present embodiment, the oil and gas mixture M first enters the oil and gas inlet 3, the cross-sectional area rapidly increases, and the air flow dispersion is disordered. When hitting the two side sealing plates and the oil retaining plate 21, most of the G of the oil and gas mixture M is turned around the bottom of the intermediate sealing plate 4 into the intermediate space of the oil retaining plate 21 and the flow equalizing plate 1, and a part of the airflow passes through the oil retaining The plate 21 is redistributed after entering the oil accumulation tank 22. However, the final gas stream is collected to the bottom of the flow equalization plate 1, and enters the gas liquid filter 6 through the flow equalization hole 13 to perform the final oil gas separation process. Most of the oil L in the oil and gas mixture M is dropped into the oil accumulation tank 22 by the collision with the oil baffle 21, but a part of the oil enters the gas liquid filter 6 with the air flow, and is then blocked in the gas liquid filter. In the net 6. When the oil droplet accumulation amount in the gas-liquid filter screen 6 is sufficiently large, it will drip along the gas-liquid filter screen 6 and the side seal plate 23 to the upper surface of the flow equalization plate 1, and then flow through the liquid supply tank 12 to the oil accumulation tank 22, Finally, the oil is drained through the oil return port 10.

An embodiment of the oil separator 3 may be disposed at any end of the housing along the length direction, and the flow plate 1 extends from the end of the oil and gas inlet 3 along the length of the housing to the housing The other end. With this configuration, the number of the liquid tanks 12 per unit length (corresponding to the degree of sparseness of the distribution of the liquid tanks 12) is uniformly distributed from the side of the oil and gas inlet 3 along the longitudinal direction of the flow equalizing plate 1.

Considering that the airflow near the oil and gas inlet 3 is relatively intense, the farther the gas flow from the oil and gas inlet 3 is gradually reduced, the sparseness of the liquid tank 12 near the oil and gas inlet 3 side is preferably sparse compared to the position far from the oil and gas inlet. . Considering that the diameter of the flow equalization hole 13 is usually set from the side close to the oil and gas inlet to the far side, it is usually set to be small and large, so that the cross-sectional area of the flow hole on the farthest side is sufficient to satisfy the oil return, so that it can be appropriately reduced. The number of tanks 12. That is, it is preferable that the number of the liquid tanks 12 on the unit length is distributed from the first quantity to the second quantity to the third quantity, and the first quantity and the third quantity are both less than the second quantity. That is, the number of the liquid tanks 12 per unit length is arranged from the end of the oil and gas inlet 3 to the farther end in accordance with the rule of decreasing from less to less. Similarly, based on the feature that the intensity of the gas flow is gradually decreased from the oil and gas inlet 3, it is preferable that the cross-sectional area of the liquid tank 12 gradually increases from the side of the oil and gas inlet 3 along the length of the flow plate 1.

For the shorter length of the flow plate or the cross-sectional area of the distal flow hole is insufficient to meet the oil return, it may be arranged that only the number of the liquid flow tank 12 per unit length is distributed from the first quantity to the second quantity. The first quantity is less than the second quantity. In addition, in order to ensure the uniformity effect of the flow equalization holes, it is preferable that the total length of the liquid supply tank 12 on any side of the flow equalization plate in the longitudinal direction of the flow equalization plate is not more than the current sharing. The total length of the side of the board is 1/3.

From the overall layout analysis of the refrigeration system, the oil and gas inlet 3 has a variable state at the installation position of the oil separator housing, and may be set to the offset position shown in FIG. 10 or the one shown in FIG. 11 in addition to the aforementioned unilateral arrangement position. centre position.

In Fig. 10, the oil and gas inlet 3 is disposed at an offset position between a position 1/2 of the length of the casing in the longitudinal direction of the casing and an arbitrary end of the casing in the longitudinal direction, for example, 1/3 position or 2/ 3 positions. Correspondingly, the flow equalization plate 1 includes a first flow equalization plate segment and a second flow equalization plate segment respectively extending from the offset position along the length direction of the casing to both ends of the casing, the first The length of the flow plate section is greater than the length of the second flow equalization plate section.

For the oil separator A in which the oil and gas inlet 3 is disposed at the offset position, the longer first flow equalization plate section can refer to the distribution pattern of the liquid overflow tank 12 on the current unilaterally distributed plate. That is, the number of the liquid passing tanks 12 on the first equalizing plate section is uniformly distributed along the longitudinal direction of the first equalizing plate section from the position of the oil and gas inlet 3, respectively. It is also possible that the number of the liquid tanks 12 on the first equalizing plate section is distributed from the first quantity to the second quantity in a unit length, the first quantity is less than the second quantity, or The first quantity to the second quantity are distributed to the third quantity, the first quantity and the third quantity being less than the second quantity.

Depending on the intensity of the gas flow mixture at different distances, the average number of the liquid passages 12 on the shorter second flow equalization plate section is less than the average length on the first flow equalization plate section. The average number of the liquid tanks 12 over the unit length. The average cross-sectional area of the over-tank 12 on the first equalizing plate section is also preferably greater than the average cross-sectional area of the over-tank 12 on the second averaging plate section.

For the shorter second equalizing plate section, the distribution of the number of liquid tanks per unit length can be designed according to the length thereof. For example, for a second counterflow plate segment having a large offset and a short length, the number of the liquid tanks 12 on the unit length may be from the position of the oil and gas inlet 3 along the second The length direction of the flow plate segments is arranged in a uniformly distributed form. For the second current equalizing plate segment with a small offset and a long length, reference may be made to the arrangement of the first current equalizing plate segments, that is, the number of the liquid passing tanks 12 on the unit length thereof is The position of the oil and gas inlet 3 is distributed along the length direction of the second current equalizing plate segment or from the fourth number to the fifth number, the fourth quantity being less than the fifth quantity, or by the fourth quantity The fifth number is distributed to a sixth number, the fourth number and the sixth number being less than the fifth number.

The cross-sectional area of the over-fluid tank 12 on the first equalizing plate section is preferably along the first current-flowing plate section from the position of the oil-gas inlet 3 based on the feature that the violent degree of the gas flow is gradually decreased from the oil and gas inlet 3 The length direction gradually increases. Preferably, compared with the shorter second equalizing plate segment, it is preferable that the average cross-sectional area of the liquid passing tank 12 on the first equalizing plate segment is larger than the above-mentioned over the second current sharing plate segment. The average cross-sectional area of the liquid tank 12. When designing the over-fluid channel on the second equalizing plate section, a suitable cross-sectional area may be selected according to the length of the second averaging plate section, for example, the over-fluid tank 12 on the second averaging plate section The cross-sectional area may be the same or gradually increasing along the length direction of the second flow plate section from the position of the oil and gas inlet 3.

In Fig. 11, the oil and gas inlet 3 is disposed at a position (i.e., an intermediate position) of the length of the casing in the longitudinal direction of the casing. The current equalizing plate 1 includes a first flow equalization plate segment and a second flow equalization plate segment extending from the position of the oil and gas inlet 3 respectively along the length direction of the casing to both ends of the casing. Since the oil and gas inlet is located at an intermediate position, the oil and gas operation conditions on both sides are substantially the same, so that the first flow plate section and the liquid flow tank 12 on the second flow plate section can be symmetrically arranged, and the symmetric arrangement here The degree of coefficient of the arrangement may be included, and the cross-sectional area or shape of the liquid tank 12 may be included.

For the first equalizing plate section and the second equalizing plate section, the number of the liquid tanks 12 on the unit length and the sectional area can be set by referring to the aforementioned oil and gas inlet 3 single side setting or offset setting. Oil separator embodiment. For example, the number of the liquid tanks 12 on the unit length is uniformly distributed from the positions of the oil and gas inlets 3 along the length direction of the first and second flow plate sections, respectively, or by the first quantity. Distributed to a second quantity, the first quantity being less than the second quantity, or being distributed by a first quantity to a second quantity to a third quantity, the first quantity and the third quantity Both are less than the second amount. For another example, a cross-sectional area of the liquid-passing tank 12 on the first and second equalizing plate sections is from the position of the oil-gas inlet 3 along the first current-saverage section and The length direction of the second equalizing plate section gradually increases. For specific reasons, reference may be made to the foregoing embodiments, and details are not described herein again.

In the embodiment of the two oil and gas inlet arrangement modes shown in FIG. 10 and FIG. 11 , in order to ensure the equalization effect of the flow sharing holes, the over-liquid tank on any side of the first flow equalization plate section is preferred. The total length in the longitudinal direction of the current equalizing plate is not more than 1/3 of the total length of the side of the first flow equalizing plate segment; and/or any side of the second current sharing plate segment The total length of the over-tank 12 on the side in the longitudinal direction of the flow equalization plate is not more than 1/3 of the total length of the side of the second flow equalization plate section.

The oil separator A described above can be applied not only to the condenser in a built-in form but also to other devices that require separation of oil and gas, such as a flasher, or can be used independently. Accordingly, the present invention also provides an embodiment of a flasher comprising a hydraulic separator A of any of the foregoing in a built-in form.

It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to be limiting; although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that The invention is not limited to the spirit of the technical solutions of the present invention, and should be included in the scope of the technical solutions claimed in the present invention.

Claims

A current equalizing plate (1), characterized in that it comprises a plate body (11) on which a plurality of passes are arranged along at least one side of the plate body (11) a liquid tank (12) such that deposition droplets above the plate body (11) flow back through the liquid passing tank (12) below the plate body (11).
The flow equalizing plate (1) according to claim 1, characterized in that a plurality of flow sharing holes (13) are distributed on the surface of the plate body (11) between the two side edges of the plate body (11) So that the gas-liquid mixture passes through the flow-through hole (13) from below the plate body (11) to reach above the plate body (11).
A current equalizing plate (1) according to claim 1, characterized in that the liquid-filling groove (12) is curved, polygonal or a combination of a curved shape and a polygonal shape on the surface of the plate body (11).
A current equalizing plate (1) according to claim 3, characterized in that the polygon is rectangular, trapezoidal or triangular.
A flow equalizing plate (1) according to claim 1, characterized in that the groove wall of the liquid overflow tank (12) is perpendicular to the surface of the plate body (11).
The current equalizing plate (1) according to claim 1, characterized in that the groove wall of the liquid-passing groove (12) is at a predetermined outer oblique angle α with respect to the upper side surface of the plate body (11).
The current equalizing plate (1) according to claim 6, wherein the predetermined outer oblique angle is 30 to 60.
The current equalizing plate (1) according to claim 6, characterized in that a transitional blunt edge structure is further provided at a position where the groove wall of the liquid supply tank (12) is close to the lower side of the plate body (11).
The current equalizing plate (1) according to claim 1, characterized in that the cross-sectional area of the liquid-filling tank (12) is greater than 300 mm 2 .
An oil separator (A) comprising: a casing, an oil and gas inlet (3), and a flow equalizing plate (1) according to any one of claims 1 to 9.
The oil separator (A) according to claim 10, wherein said oil and gas inlet (3) is disposed at either end of said casing along a length direction, said flow equalizing plate (1) from said oil and gas The end of the inlet (3) extends along the length of the housing to the other end of the housing.
The oil separator (A) according to claim 10, characterized in that the oil and gas inlet (3) is disposed at a position 1/2 of the length of the casing in the longitudinal direction of the casing, the current sharing The plate (1) includes a first flow plate section and a second flow plate section extending from the position of the oil and gas inlet (3) along the length direction of the casing to both ends of the casing, respectively.
The oil separator (A) according to claim 10, wherein the oil and gas inlet (3) is disposed at a position 1/2 of a length of the casing along the length direction of the casing and the casing An offset position between any one end in the length direction, the current equalizing plate (1) including a first current sharing extending from the offset position to the ends of the housing respectively along the length direction of the housing The length of the first flow equalization plate segment is greater than the length of the second flow equalization plate segment.
The oil separator (A) according to claim 11, characterized in that the number of the liquid tank (12) per unit length is from the side of the oil and gas inlet (3) along the flow plate (1) The length direction is evenly distributed, or distributed from a first quantity to a second quantity, the first quantity being less than the second quantity, or being distributed from the first quantity to the second quantity to the third quantity The first quantity and the third quantity are both less than the second quantity.
The oil separator (A) according to claim 12, wherein said liquid flow tank (12) on said first flow equalization plate section and said second flow equalization plate section is on a unit length The quantity is evenly distributed along the length direction of the first and second equalizing plate segments from the position of the oil and gas inlet (3), or distributed from the first quantity to the second quantity. The first quantity is less than the second quantity, or is distributed from the first quantity to the second quantity to the third quantity, the first quantity and the third quantity are both less than the second quantity.
The oil separator (A) according to claim 12, characterized in that the first flow plate section and the liquid flow tank (12) on the second flow plate section are arranged symmetrically.
The oil separator (A) according to claim 13, wherein the number of the liquid tanks (12) on the first equalizing plate section is from the oil and gas inlet (3) Positions are evenly distributed along the length direction of the first current equalizing plate segment, or distributed from a first quantity to a second quantity, the first quantity being less than the second quantity, or from the first quantity to the first The two quantities are distributed to a third quantity, the first quantity and the third quantity being less than the second quantity.
The oil separator (A) according to claim 17, wherein an average number of said liquid passages (12) on said first flow equalizing plate section per unit length is higher than said second average The average number of the liquid passages (12) on the flow plate section over the unit length.
The oil separator (A) according to claim 17, wherein the number of the liquid tanks (12) on the second flow equalizing plate section is from the oil and gas inlet (3) Positions are evenly distributed along the length direction of the second current equalizing plate segment, or distributed from a fourth number to a fifth number, the fourth number being less than the fifth number, or from the fourth number to the first The five quantities are distributed to a sixth quantity, the fourth quantity and the sixth quantity being less than the fifth quantity.
The oil separator (A) according to claim 11, characterized in that the cross-sectional area of the overflow tank (12) is along the length of the flow plate (1) from the side of the oil and gas inlet (3) The direction gradually increases.
The oil separator (A) according to claim 12, wherein a cross-sectional area of said liquid-feeding tank (12) on said first and equal-flow plate sections is The positions of the oil and gas inlets (3) are gradually increased along the length direction of the first flow equalization plate section and the second flow equalization plate section, respectively.
The oil separator (A) according to claim 13, wherein a cross-sectional area of said liquid passing tank (12) on said first equalizing plate section is along a position along said oil and gas inlet (3) The length direction of the first equalizing plate segment gradually increases.
The oil separator (A) according to claim 22, wherein an average cross-sectional area of said liquid passing tank (12) on said first flow equalizing plate section is larger than said second current sharing plate section The average cross-sectional area of the liquid tank (12).
The oil separator (A) according to claim 22, wherein a cross-sectional area of said liquid passing tank (12) on said second flow equalizing plate section is along a position along said oil and gas inlet (3) The length direction of the second equalizing plate segments are the same or gradually increasing.
The oil separator (A) according to claim 11, characterized in that the total liquid tank (12) on any side of the flow equaling plate is along the length direction of the current equalizing plate The length is not more than 1/3 of the total length of the side of the flow equalization plate.
The oil separator (A) according to claim 12 or 13, wherein said liquid passage (12) on any side of said first flow equalization plate section is along said flow equalization plate The total length in the length direction is not more than 1/3 of the total length of the side of the first equalizing plate section; and/or the over-liquid tank on any side of the second equalizing plate section ( 12) The total length in the length direction along the flow equalizing plate is not more than 1/3 of the total length of the side of the second flow equalizing plate segment.
The oil separator (A) according to claim 10, further comprising a gas liquid filter (6) and a baffle plate (21), the gas liquid filter (6), the flow plate (1) The oil deflector (21) is disposed in the casing from top to bottom, and an oil accumulation groove (22) is provided at the bottom of the casing.
A condenser comprising an oil separator (A) according to any one of claims 10 to 27 in a built-in form.
A flasher comprising an oil separator (A) according to any one of claims 10 to 27 in a built-in form.