Design method of quick-opening full-opening inverted bucket type steam trap valve core

Abstract

A design method for a quick-opening, fully-opening, inverted bucket-type steam trap core involves placing the valve core lever horizontally on the valve cover with the valve seat hole as the central axis, balancing it to the valve seat plane. The lever fulcrum is 1.2 mm from the valve seat plane. An isosceles triangle is drawn by connecting the intersection of the valve seat hole and the valve seat plane, with the apex pointing downwards. The diameter of the valve seat hole is the base of the triangle. The apex angle of the triangle is 90 degrees, and the two interior angles of the base are 45 degrees. A circle is drawn with the 90-degree apex angle as the center and the leg length as the radius. Draw a sphere, which is the ball head of the valve core, making the valve core a hemisphere plus a cylinder. Connect the valve core and the lever as one unit. With the ball head as the center, rotate the lever and the valve core 10 degrees downward from the horizontal line. Draw a balance line of the lever on the contact point between the ball head and the valve seat hole. Cut a plane on the ball head, and then rotate it to 15 degrees. The plane of the ball head exceeds the contact point of the valve seat, creating a notch. The steam trap drains a small amount of water. The inverted bucket sinks, causing the lever to quickly open the fully open steam trap with the lever fulcrum as the support point.

Description

Technical Field

[0001] This invention relates to a design method for a quick-opening, full-start inverted bucket steam trap core, which is applied to the core of an inverted bucket steam trap. Background Technology

[0002] Currently, the inverted bucket steam traps used in the market are all micro-open discharge. When they are about to open, condensate drips, the trap is not fully open, the drainage is not smooth, and the drainage volume is relatively small. Summary of the Invention

[0003] To address the shortcomings of the inverted bucket steam trap's micro-opening discharge, this invention discloses a design method for a quick-opening, full-opening inverted bucket steam trap core.

[0004] This inverted bucket steam trap consists of a valve body, valve cover gasket, valve cover, bolts, inverted bucket, vent, valve core lever, valve core, valve seat, copper gasket, lever hook, lever fulcrum, shaft retaining ring, filter screen, sealing gasket, guide rod, and drain plug.

[0005] A threaded valve seat is installed on the valve cover. Using the valve seat hole as the central axis, two lever hooks are welded to the valve cover according to the position of the valve core lever guide hole. The valve core lever guide hole passes through the lever hooks, ensuring the valve core lever is horizontally aligned with the valve seat plane. The lever fulcrum is 1.2 mm from the valve seat plane. Draw an isosceles triangle connecting the valve seat hole diameter and the valve seat plane, with the line connecting the valve seat hole diameters forming the base of the isosceles triangle. The vertex of the isosceles triangle points downwards, and the interior vertex angle is 90 degrees. The two interior angles of the base are both 45 degrees. Using the intersection of the 90-degree vertices of the isosceles triangle as the center, draw a circle... Using the length of the triangle's legs as the radius, draw a sphere, which is designated as the valve core ball head. The diameter of the valve core ball head changes according to the diameter of the valve seat hole, maintaining a corresponding proportional relationship. Draw the valve core body with the diameter of the ball head perpendicular to the plane of the valve core lever, making the valve core body a hemisphere plus a cylinder. The cylinder of the valve core body is extended by reducing the diameter according to the diameter of the valve core lever connection hole, passing through the connection hole of the valve core lever. After passing through the connection hole of the valve core lever, the valve core body has a retaining groove. A shaft retaining ring is installed in the retaining groove to lock the valve core body onto the valve core lever, making the valve core body and the valve core lever a whole.

[0006] Next, using the center of the valve core ball head as the center, rotate the valve core lever and valve core body downwards by 10 degrees from the horizontal line. Draw a balance line on the valve core lever at the sealing contact point between the valve core ball head and the valve seat hole. Cut off a plane from the valve core ball head. Then, continue to rotate the valve core lever and valve core downwards to an angle of 15 degrees. The plane of the valve core ball head has rotated beyond the sealing contact point of the valve seat, and a notch appears in the valve core ball head. At this time, the lever fulcrum is exactly against the plane of the valve seat, the valve core lever stops rotating, and the steam trap begins to drain a small amount of water. The pressure difference suction of the steam trap valve core decreases, and the weight of the inverted bucket is greater than the pressure difference suction of the valve core. The inverted bucket sinks, causing the valve core lever to easily rotate and open the valve core with the lever fulcrum as the support point. The steam trap valve core quickly opens and leaves the valve seat, and the condensate is quickly discharged by pressure difference.

[0007] After the condensate is drained, when steam re-enters the inverted bucket, the bucket floats, pushing the valve lever and valve core along the guide rod hook to close the valve seat. The steam trap is then tightly closed by pressure differential suction. The inverted bucket has a small vent hole, allowing non-condensable gases and a small amount of steam to escape and remain on the upper part of the steam trap body. Some heat is dissipated through the outer shell of the steam trap body. When the condensate volume is high, the steam temperature inside the inverted bucket continuously decreases due to condensation, reducing buoyancy. The inverted bucket sinks, causing the valve lever and valve core to rotate. When the valve core lever rotates downwards to 15 degrees, the lever fulcrum is exactly against the flat surface of the valve seat, the valve core lever stops rotating, a gap appears in the valve core flat head seal, the steam trap begins to drain a small amount of water, the pressure difference suction of the steam trap core decreases, the weight of the inverted bucket is greater than the pressure difference suction of the valve core, the inverted bucket sinks and drives the valve core lever to easily rotate and open the valve core with the lever fulcrum as the support point. The steam trap core quickly opens and leaves the valve seat, and the condensate is quickly discharged by pressure difference. The steam trap works in cycles according to the change of condensate volume, with high drainage efficiency.

[0008] The design method of the quick-opening, full-start inverted bucket-type steam trap of the present invention is characterized by:

[0009] 1. A threaded valve seat is installed on the valve cover. Using the valve seat hole as the central axis, two lever hooks are welded to the valve cover according to the position of the valve core lever guide hole. The valve core lever guide hole passes through the lever hooks, ensuring the valve core lever is horizontally aligned with the valve seat plane. The lever fulcrum is 1.2 mm from the valve seat plane. Draw an isosceles triangle connecting the valve seat hole diameter and the valve seat plane. The line connecting the valve seat hole diameter and the isosceles triangle forms its base. The vertex of the isosceles triangle points downwards, with an interior vertex angle of 90 degrees and two interior angles of the base of 45 degrees. Using the intersection of the 90-degree vertices of the isosceles triangle as the center, the isosceles triangle... Draw a sphere with the waist length of the shape as the radius. This sphere is designated as the ball head of the valve core. The diameter of the ball head changes according to the diameter of the valve seat hole, maintaining a corresponding proportional relationship. Draw the valve core body with the diameter of the ball head perpendicular to the plane of the valve core lever, making the valve core body a hemisphere plus a cylinder. The cylinder of the valve core body is extended by reducing the diameter according to the diameter of the valve core lever connection hole, passing through the connection hole of the valve core lever. After passing through the connection hole of the valve core lever, the valve core body has a retaining groove. A shaft retaining ring is installed in the retaining groove to lock the valve core body onto the valve core lever, making the valve core body and the valve core lever a whole.

[0010] 2. Using the center of the valve core ball head as the center, rotate the valve core lever and valve core body downwards by 10 degrees from the horizontal line. Draw a balance line on the valve core lever at the sealing contact point between the valve core ball head and the valve seat hole. Cut off a plane from the valve core ball head. Then, continue to rotate the valve core lever and valve core ball head downwards to an angle of 15 degrees. The plane of the valve core ball head has rotated beyond the sealing contact point of the valve seat, creating a notch in the valve core ball head. At this point, the lever fulcrum is exactly against the plane of the valve seat, the valve core lever stops rotating, and the steam trap begins to drain a small amount of water. The pressure difference suction of the steam trap core decreases, and the weight of the inverted bucket is greater than the pressure difference suction of the valve core. The inverted bucket sinks, causing the valve core lever to rotate easily around the lever fulcrum to open the valve core. The steam trap core quickly opens to full opening and leaves the valve seat. Condensate is quickly discharged by pressure difference. The steam trap works in cycles according to the change in condensate volume, resulting in high drainage efficiency. Attached Figure Description

[0011] Appendix Figure 1 Yes: Inverted bucket steam trap

[0012] Appendix Figure 2 Yes: Valve core lever

[0013] Appendix Figure 3 Yes: Valve core design

[0014] Appendix Figure 4 Yes: Valve core ball head cut-off

[0015] Appendix Figure 5 Yes: Valve core micro-drainage

[0016] In the attached diagram: valve body (1), valve cover gasket (2), valve cover (3), bolt (4), inverted bucket (5), vent (6), valve core lever (7), valve core (8), valve seat (9), copper gasket (9), lever hook (10), lever fulcrum (11), shaft retaining ring (12), filter screen (13), gasket (14), guide rod (15), drain plug (16) Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings and examples.

[0018] As shown in the attached figure, the present invention is mainly composed of valve body (1), valve cover sealing gasket (2), valve cover (3), bolt (4), inverted bucket (5), exhaust hole (6), valve core lever (7), valve core (8), valve seat (9), copper gasket (9), lever hook (10), lever fulcrum (11), shaft retaining ring (12), filter screen (13), sealing gasket (14), guide rod (15), and drain plug (16).

[0019] A threaded valve seat (9) is installed on the valve cover (1). Taking the valve seat (9) hole as the central axis, two lever hooks (11) are welded on the valve cover according to the position of the guide hole of the valve core lever (7). The guide hole of the valve core lever passes through the lever hooks (11), so that the valve core lever (7) is placed horizontally and balanced with the plane of the valve seat (9). The lever fulcrum (12) is 1.2 mm away from the plane of the valve seat (9). Draw an isosceles triangle by connecting the diameter of the valve seat (9) hole and the plane of the valve seat (9). The line connecting the diameter of the valve seat (9) hole is the base of the isosceles triangle. The vertex of the isosceles triangle points downward. The interior vertex of the isosceles triangle is 90 degrees. The two interior angles of the base are 45 degrees. Taking the intersection of the 90-degree vertex of the isosceles triangle as the center, the isosceles triangle... Draw a sphere with the waist length as the radius. This sphere is designated as the ball head of the valve core (8). The diameter of the ball head of the valve core (8) is changed according to the diameter of the valve seat hole (9) to maintain the corresponding proportional relationship. Draw the main body of the valve core (8) with the diameter of the ball head of the valve core (8) perpendicular to the plane of the valve core lever (7). Make the main body of the valve core (8) a hemisphere plus a cylinder. The cylinder of the main body of the valve core (8) is extended by reducing the diameter according to the diameter of the lever connection hole and passing through the connection hole of the lever hook (11). After passing through the connection hole of the lever hook (11), the main body of the valve core (8) is provided with a retaining groove. Install a shaft retaining ring (13) in the retaining groove to lock the main body of the valve core (8) onto the valve core lever (7) so that the main body of the valve core (8) and the valve core lever (7) are connected as one.

[0020] Next, taking the center of the ball head of the valve core (8) as the center, rotate the valve core lever (7) and the valve core (8) body downwards by 10 degrees from the horizontal line. Draw a balance line balanced on the lever at the sealing contact point between the ball head of the valve core (8) and the valve seat (9) hole. Cut off a plane from the ball head of the valve core (8). Then, continue to rotate the valve core lever (7) and the valve core (8) body downwards by 15 degrees. The plane of the ball head of the valve core (8) has rotated beyond the sealing contact point of the valve seat (9), and a defect appears in the ball head of the valve core (8). At this moment, the lever fulcrum (12) is exactly against the plane of the valve seat (9), the valve core lever (7) stops rotating, the steam trap starts to drain a small amount of water, the pressure difference suction of the steam trap valve core (8) decreases, the weight of the inverted bucket (5) is greater than the pressure difference suction of the valve core (8), the inverted bucket (5) sinks and drives the valve core lever (7) to easily rotate and open the valve core (8) with the lever fulcrum (12) as the support point. The steam trap valve core (8) quickly opens and leaves the valve seat (9), and a large amount of condensate is discharged, with high drainage efficiency.

[0021] After the condensate is drained, when the steam re-enters the inverted bucket (5), the inverted bucket (5) floats up, pushing the valve lever (7) and valve core (8) along the guide rod hook (11) to close the valve seat (9). The drain valve core (8) is tightly closed by the pressure difference suction. There is a small vent hole (6) on the inverted bucket (5), and non-condensable gases and a small amount of steam can escape from the small hole (6) and remain inside the drain valve body (1). Some heat is dissipated through the outer shell of the drain valve body (1). When the amount of condensate is large, the steam temperature inside the inverted bucket (5) continuously condenses and decreases, the buoyancy decreases, and the inverted bucket (5) sinks, driving the valve lever (7) and valve core (8). When the valve core lever (7) rotates downward to 15 degrees, the lever fulcrum (12) is exactly against the plane of the valve seat (9), the valve core lever (7) stops rotating, the valve core (8) flat-head seal has a gap, the steam trap starts to drain a small amount of water, the pressure difference attraction of the steam trap valve core (8) decreases, the weight of the inverted bucket (5) is greater than the pressure difference attraction of the valve core (8), the inverted bucket (5) sinks and drives the valve core lever (7) to easily rotate and open the valve core (8) with the lever fulcrum (12) as the support point. The steam trap valve core (8) quickly opens and leaves the valve seat (9), the condensate is discharged quickly by pressure difference, and the steam trap works in cycles according to the change of condensate volume, with high drainage efficiency.

[0022] The design method of quick-opening, full-opening, inverted bucket-type steam trap core is characterized by:

[0023] 1. Install a threaded valve seat (9) on the valve cover (3). With the valve seat (9) hole as the central axis, weld two lever hooks (11) on the valve cover according to the position of the guide hole of the valve core lever (7). The guide hole of the valve core lever (7) passes through the lever hooks (11), so that the valve core lever (7) is placed horizontally and balanced with the plane of the valve seat (9). The lever fulcrum (12) is 1.2 mm away from the plane of the valve seat (9). Draw an isosceles triangle by connecting the diameter of the valve seat (9) hole and the plane of the valve seat (9). The line connecting the diameter of the valve seat (9) hole is the base of the isosceles triangle. The vertex of the isosceles triangle points downward. The interior vertex of the isosceles triangle is 90 degrees. The two interior angles of the base are 45 degrees. With the intersection of the 90-degree vertex of the isosceles triangle as the center, the isosceles triangle... Draw a sphere with the waist length as the radius. This sphere is designated as the ball head of the valve core (8). The diameter of the ball head of the valve core (8) is changed according to the diameter of the valve seat (9) hole, maintaining the corresponding proportional relationship. Draw the main body of the valve core (8) with the diameter of the ball head of the valve core (8) perpendicular to the plane of the valve core lever (7), so that the main body of the valve core (8) becomes a hemisphere plus a cylinder. The cylinder of the main body of the valve core (8) is extended by reducing the diameter according to the diameter of the connecting hole of the valve core lever (7) and passing through the connecting hole of the valve core lever (7). After passing through the connecting hole of the valve core lever (7), the main body of the valve core (8) is provided with a retaining groove. A shaft retaining ring (13) is installed in the retaining groove to hold the main body of the valve core (8) on the valve core lever (7), so that the main body of the valve core (8) and the valve core lever (7) are connected as one.

[0024] 2. Taking the center of the ball head of the valve core (8) as the center, rotate the valve core lever (7) and the valve core (8) body downwards by 10 degrees from the horizontal line. Draw a balance line on the valve core (8) ball head and valve seat (9) hole sealing contact point, cut off a plane of the valve core (8) ball head, and then continue to rotate the valve core lever (7) and valve core (8) ball head downwards to an angle of 15 degrees. The plane of the valve core (8) ball head has rotated beyond the valve seat sealing contact point, and a notch appears in the valve core (8) ball head. At this time, the lever fulcrum (1) 2) When the valve core lever (7) stops rotating, the steam trap starts to drain a small amount of water. The pressure difference suction of the steam trap valve core (8) decreases. The weight of the inverted bucket (5) is greater than the pressure difference suction of the valve core (8). The inverted bucket (5) sinks and drives the valve core lever (7) to easily rotate and open the valve core (8) with the lever fulcrum (12) as the support point. The steam trap valve core (8) quickly opens and leaves the valve seat (9). The condensate is discharged quickly by pressure difference. The steam trap works in cycles according to the change of condensate volume, and the drainage efficiency is high.

Claims

1. A design method for a quick-opening, fully-opening, inverted bucket-type steam trap core, characterized in that: A threaded valve seat is installed on the valve cover. With the valve seat hole as the central axis, two lever hooks are welded to the valve cover according to the position of the valve core lever guide hole. The lever guide hole passes through the lever hooks, ensuring the valve core lever is horizontally aligned with the valve seat plane. The lever fulcrum is 1.2 mm from the valve seat plane. Draw an isosceles triangle connecting the valve seat hole diameter and the valve seat plane. The line connecting the valve seat hole diameters forms the base of the isosceles triangle, with the apex pointing downwards. The inner vertex angle is 90 degrees, and the two inner angles of the base of the line connecting the valve seat hole diameter and the inner vertex angle are both 45 degrees. Using the intersection of the 90-degree vertices of an isosceles triangle as the center and the length of the isosceles triangle as the radius, draw a sphere. This sphere will be the valve core's ball head. The diameter of the valve core's ball head will change according to the valve seat hole diameter, maintaining a proportional relationship. Draw the valve core body based on the line connecting the ball head diameter perpendicular to the lever plane, making the valve core body a hemisphere plus a cylinder. The cylinder of the valve core body will be reduced in diameter and extended in diameter according to the lever connection hole diameter. After passing through the connecting hole of the valve core lever, the valve core body has a retaining ring groove. A shaft retaining ring is installed in the retaining ring groove to hold the valve core body onto the valve core lever, making the valve core body and valve core lever a single unit. Taking the center of the valve core ball head as the center, the valve core lever and valve core body are rotated 10 degrees downward from the horizontal line. A balance line is drawn on the valve core lever at the sealing contact point between the ball head and the valve seat hole. A flat surface is cut off from the valve core ball head. Then the valve core lever and valve core ball head continue to rotate downward until... At a 15-degree angle, the plane of the valve core ball head has rotated beyond the valve seat sealing contact point, creating a notch in the valve core ball head. At this moment, the lever fulcrum is exactly against the plane of the valve seat, the valve core lever stops rotating, and the steam trap begins to drain a small amount of water. The pressure difference suction of the valve core decreases, and the weight of the inverted bucket is greater than the pressure difference suction of the valve core. The inverted bucket sinks, causing the valve core lever to rotate around the lever fulcrum to open the valve core. The steam trap quickly opens to full opening and leaves the valve seat. Condensate is quickly discharged by pressure difference. The steam trap works cyclically according to the change in condensate volume, resulting in high drainage efficiency.

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