Low pressure drop T float valve

Abstract

The utility model discloses low pressure drop T type float valve, including tower plate, the tower plate is passed through and is equipped with mounting hole and first guide hole respectively, four first guide holes are symmetrically provided, and the shape of four first guide holes is all long circle, the top of tower plate is provided with the fender, the middle segment of fender is square, and the both ends of fender are oblique fan -shaped upwards, the upper fixed joint of fender has the supporting leg, the supporting leg is provided with four, four supporting legs are symmetrically arranged in the both sides of fender, and the supporting leg is connected in the corresponding first guide hole slidingly, relate to petroleum chemical industry, chemical industry separation and energy -conserving technical field, and the opening of valve cover is limited through fender and supporting leg, and the clamping groove on valve cover guarantees that valve cover is straight up and straight down under the impact of airflow, does not rotate and lean, reduces the loss of valve cover, and fender and side plate cooperate, prevent valve cover from falling off and excessive opening, and the convex on valve cover prevents valve cover from sticking and jamming with tower plate, and the arched design enhances the deformation resistance.

Description

Technical Field

[0001] This utility model relates to the fields of petrochemical, chemical separation and energy-saving technology, specifically a low-pressure-drop T-type float valve. Background Technology

[0002] A guide float valve tray for a packed tower includes a tray with an installation hole on its outer wall. A float valve assembly is installed on the inner wall of the installation hole. A guide block is installed on one side of the installation hole and on the outer wall of the tray. This invention uses a sliding rod located in the inner cavity of the installation hole to seal the top cover over the installation hole. When there is high-pressure gas below the tray, the gas rushes into the installation hole through the gap between the bottom plate and the sliding rod, lifting the top cover to open the float valve. Conversely, the bottom plate pulls the sliding rod down under gravity, causing the float valve to close. However, the top cover in this device has a sealing effect on the installation hole. When the rising gas velocity is low, the top cover is prone to sticking to the tray, preventing the float valve from opening. When the rising gas velocity is high, the bottom plate is easily lifted by the airflow, causing blockage of the installation hole. Therefore, we propose a low-pressure-drop T-type float valve. Utility Model Content

[0003] The purpose of this invention is to provide a low-pressure-drop T-type float valve to solve the technical problems mentioned in the background section.

[0004] The objective of this utility model can be achieved through the following technical solution: a low-pressure-drop T-type floating valve, comprising a tower plate, wherein an installation hole and a first guide hole are respectively opened through the tower plate, four first guide holes are symmetrically arranged, and the four first guide holes are all oblong in shape, a baffle is provided above the tower plate, the middle section of the baffle is square, and the two ends of the baffle are obliquely upward fan-shaped, and a support foot is fixedly connected to the upper part of the baffle, four support feet are provided, the four support feet are symmetrically arranged on both sides of the baffle, and the support feet are slidably connected in the corresponding first guide hole.

[0005] As a further embodiment of this utility model: a valve cover is slidably connected between the four legs. The valve cover has an upward arched design and three downward protrusions. The edge of the valve cover has four slots, which are slidably connected to the inner side of the corresponding legs.

[0006] As a further embodiment of this utility model: a second guide hole is provided through the valve cover, and four second guide holes are provided, with two second guide holes forming a group, and the two groups of second guide holes facing the two ends of the baffle respectively.

[0007] As a further embodiment of this utility model: a flow divider ring is fixedly connected to the bottom of the valve cover, the flow divider ring is located on the inner side of the protrusion, and a flow divider groove is provided on the flow divider ring, and multiple flow divider grooves are provided.

[0008] As a further embodiment of this utility model: the diameters of the valve cover and the flow divider are both larger than the diameter of the mounting hole, and the height of the flow divider is smaller than the height of the protrusion.

[0009] As a further embodiment of this utility model: the lower end of the support leg passes through the first guide hole and bends to one side to prevent the baffle and valve cover from falling off the tower plate. The support leg is provided with a right angle bend, and there are two right angle bends. The upper right angle bend limits the maximum opening of the valve cover, and the lower right angle bend limits the minimum height of the baffle. The distance between the two right angle bends is greater than the overall height of the valve cover.

[0010] As a further embodiment of this utility model: side plates are fixedly provided on both sides of the middle section of the baffle, and the bottom surface of the two side plates is an arc surface that matches the arched shape of the valve cover. Beneficial effects

[0011] This utility model provides a low-pressure-drop T-type float valve. Compared with the prior art, it has the following advantages:

[0012] (1) The opening of the valve cover is limited by the baffle and the support foot. The groove on the valve cover ensures that the valve cover moves straight up and down under the impact of the airflow without rotating or tilting, thus reducing the wear of the valve cover. The baffle and the side plate cooperate to prevent the valve cover from falling off and being over-opened. The protrusion on the valve cover prevents the valve cover from sticking and jamming with the tower plate. The arched design enhances the resistance to deformation.

[0013] (2) This utility model makes full use of the mass transfer space at the top of the valve cover by using the second guide hole and the oblique fan shape at both ends of the baffle, so that the gas is more finely and evenly dispersed, the gas-liquid contact is more sufficient, and the airflow is easier to guide and disperse.

[0014] (3) The present invention divides the gas into many small streams when it flows out of the valve cover side through the flow divider ring and flow divider groove, thereby increasing the gas-liquid contact area and improving the mass transfer efficiency of the tray. Attached Figure Description

[0015] Figure 1 This is a perspective view of the present utility model;

[0016] Figure 2 This is a perspective view of the tower plate of this utility model;

[0017] Figure 3 This is a perspective view of the valve cover of this utility model;

[0018] Figure 4This is a perspective view of the flow divider coil of this utility model;

[0019] Figure 5 This is a perspective view of the stop and support legs of this utility model;

[0020] Figure 6 This is a partial side view of the present invention.

[0021] In the diagram: 1. Tower plate; 2. Mounting hole; 3. First guide hole; 4. Baffle; 5. Support leg; 6. Valve cover; 61. Protrusion; 62. Slot; 63. Second guide hole; 64. Diverter ring; 65. Diverter groove; 7. Right angle bend; 8. Side plate. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-6 As shown, this utility model is a low-pressure-drop T-type floating valve, including a tower plate 1. The tower plate 1 is provided with a mounting hole 2 and a first guide hole 3. Four first guide holes 3 are symmetrically arranged, and the four first guide holes 3 are all oblong in shape. A baffle 4 is provided above the tower plate 1. The middle section of the baffle 4 is square, and the two ends of the baffle 4 are fan-shaped with an upward sloping angle. Four support legs 5 are fixedly connected to the upper part of the baffle 4. The four support legs 5 are symmetrically arranged on both sides of the baffle 4, and the support legs 5 are slidably connected in the corresponding first guide hole 3.

[0024] The gap between the first guide hole 3 and the support leg 5 is 0.2-0.5mm to ensure smooth movement. The length of the first guide hole 3 is 1-2mm larger than the width of the right angle to allow the stop 4 to rise and fall freely. The stop 4 and the support leg 5 are designed as an integral unit to reduce connection nodes and reduce the risk of failure.

[0025] A valve cover 6 is slidably connected between the four support legs 5. The valve cover 6 has an upward arched design and three downward protrusions 61 on it. The edge of the valve cover 6 has four slots 62, which are slidably connected to the inner side of the corresponding support legs 5.

[0026] The opening of the valve cover 6 is limited by the baffle 4 and the support leg 5. The groove 62 on the valve cover 6 ensures that the valve cover 6 moves straight up and down under the impact of airflow without rotating or tilting, thus reducing the wear of the valve cover 6. The baffle 4 and the side plate 8 cooperate to prevent the valve cover 6 from falling off and being over-opened. The protrusion 61 on the valve cover 6 prevents the valve cover 6 from sticking and jamming with the tower plate 1. The arched design enhances the resistance to deformation.

[0027] A second guide hole 63 is provided through the valve cover 6. There are four second guide holes 63. Every two second guide holes 63 form a group. The two groups of second guide holes 63 are respectively facing the two ends of the baffle 4.

[0028] By using the second guide hole 63 and the oblique fan-shaped ends of the baffle 4, the mass transfer space on the upper part of the valve cover 6 is fully utilized, making the gas dispersion more fine and uniform, the gas-liquid contact more sufficient, and facilitating the guidance and dispersion of the airflow.

[0029] A flow divider ring 64 is fixedly connected to the bottom of the valve cover 6. The flow divider ring 64 is located inside the protrusion 61. A flow divider groove 65 is provided on the flow divider ring 64, and multiple flow divider grooves 65 are provided.

[0030] The diameters of the valve cover 6 and the flow divider ring 64 are both larger than the diameter of the mounting hole 2, and the height of the flow divider ring 64 is smaller than the height of the protrusion 61.

[0031] The flow divider ring 64 and flow divider groove 65 divide the gas flow out of the side of the valve cover 6 into many small gas streams, thereby increasing the gas-liquid contact area and improving the mass transfer efficiency of the tray.

[0032] The lower end of the support leg 5 passes through the first guide hole 3 and then bends to one side to prevent the baffle 4 and valve cover 6 from falling off the tower plate 1. The support leg 5 is provided with a right angle bend 7. There are two right angle bends 7. The upper right angle bend 7 limits the maximum opening of the valve cover 6, and the lower right angle bend 7 limits the minimum height of the baffle 4. The distance between the two right angle bends 7 is greater than the overall height of the valve cover 6.

[0033] Side plates 8 are fixedly installed on both sides of the middle section of the baffle 4, and the bottom surface of the two side plates 8 is an arc surface that matches the arched shape of the valve cover 6.

[0034] The arc surface of the side plate 8 forms a sealing surface with the valve cover 6, reducing gas short-circuit flow.

[0035] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0036] The working principle of this utility model is as follows: When there is no rising vapor phase or the vapor phase is small, the valve cover 6 cannot be lifted by the airflow, the protrusion 61 contacts the pedal 1, the float valve is in a closed state, part of the airflow passes through the mounting hole 2, is divided into multiple small airflows through the diversion groove 65, and then passes through the side of the valve cover 6 and rises. Part of the airflow overflows and rises along the oblique fan shape at both ends of the baffle 4 through the second guide hole 63. When the rising vapor phase gradually increases, the valve cover 6 is opened by the impact of the airflow and slides along the support leg 5. The opening degree increases with the increase of the vapor phase, keeping the vapor phase velocity stable and the pressure drop small. When the vapor phase velocity reaches the critical value, the airflow lifts the valve cover 6, the support leg 5 and the baffle 4 to the highest position, and the float valve is fully open.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A low-pressure-drop T-type floating valve, comprising a tray (1), characterized in that: The tower plate (1) is provided with mounting holes (2) and first guide holes (3) respectively. There are four first guide holes (3) symmetrically arranged. The four first guide holes (3) are all oblong in shape. A baffle (4) is provided above the tower plate (1). The middle section of the baffle (4) is square. The two ends of the baffle (4) are fan-shaped and slanted upward. The baffle (4) is fixedly connected with a support (5). There are four support feet (5). The four support feet (5) are symmetrically arranged on both sides of the baffle (4). The support feet (5) are slidably connected in the corresponding first guide holes (3).

2. The low-pressure-drop T-type float valve according to claim 1, characterized in that: A valve cover (6) is slidably connected between the four legs (5). The valve cover (6) has an upward arched design. The valve cover (6) has three downward protrusions (61). The valve cover (6) has four slots (62) on its edge. The four slots (62) are slidably connected to the inner side of the corresponding legs (5).

3. The low-pressure-drop T-type float valve according to claim 2, characterized in that: The valve cover (6) has a through-hole (63). There are four second guide holes (63), and each pair of second guide holes (63) forms a group. The two groups of second guide holes (63) face the two ends of the baffle (4) respectively.

4. The low-pressure-drop T-type float valve according to claim 3, characterized in that: A flow divider ring (64) is fixedly connected to the bottom of the valve cover (6). The flow divider ring (64) is located inside the protrusion (61). A flow divider groove (65) is provided on the flow divider ring (64). Multiple flow divider grooves (65) are provided.

5. The low-pressure-drop T-type float valve according to claim 4, characterized in that: The diameters of the valve cover (6) and the flow divider (64) are both greater than the diameter of the mounting hole (2), and the height of the flow divider (64) is less than the height of the protrusion (61).

6. The low-pressure-drop T-type float valve according to claim 2, characterized in that: The lower end of the support leg (5) passes through the first guide hole (3) and bends to one side to prevent the baffle (4) and valve cover (6) from falling off the tower plate (1). The support leg (5) is provided with a right angle bend (7). There are two right angle bends (7). The upper right angle bend (7) limits the maximum opening of the valve cover (6), and the lower right angle bend (7) limits the minimum height of the baffle (4). The distance between the two right angle bends (7) is greater than the overall height of the valve cover (6).

7. The low-pressure-drop T-type float valve according to claim 2, characterized in that: Side plates (8) are fixedly installed on both sides of the middle section of the baffle (4), and the bottom surfaces of the two side plates (8) are arc surfaces that match the arched design of the valve cover (6).

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