Flange seal for capsule oil reservoir

Abstract

The utility model provides a capsule type oil storage cabinet flange sealing device, including oil storage cabinet, be equipped with the gap on the oil storage cabinet, be equipped with the flange of receiving in the gap, be equipped with the capsule in the oil storage cabinet, be equipped with the metal flange on the capsule, be equipped with the apron on the metal flange, the apron is connected with the flange of receiving, be equipped with the breathing tube on the apron, the breathing tube penetrates the apron and the metal flange, breathing tube one end is connected with the capsule. Overall device work, capsule expands or contracts through the breathing tube. The lower surface of apron is provided with a connecting sleeve, the metal flange at the top end of capsule is inserted into the connecting sleeve, to avoid air entering the cabinet from between the metal flange and the apron. The sidewall of the connecting sleeve is provided with a plurality of support bolts, and the support bolts support the metal flange, to avoid air leakage due to loosening between the metal flange and the apron caused by gravity or capsule expansion and contraction during long-term use.

Description

Technical Field

[0001] This utility model relates to the field of oil storage, and in particular to a flange sealing device for capsule-type oil tanks. Background Technology

[0002] Currently, oil used in power plants is generally stored in rubber capsules. The capsule-type oil tank contains oil-resistant rubber capsules. The capsules are connected to the top metal flange via a receiving flange. The top of the metal flange is connected to the upper surface of the cover plate. The upper surface of the cover plate is connected to the flange of the breathing tube, thus realizing the connection between the airbag and the breathing tube.

[0003] However, in the existing connection method, gas can easily enter the cabinet from between the cover plate and the metal flange, disrupting the stability of the oil inside the cabinet, such as causing oil oxidation or moisture absorption. During the operation of the oil tank, the bladder will frequently expand and contract with changes in oil level, causing the metal flange to move slightly back and forth; at the same time, the metal flange itself will tend to sink under the long-term effect of gravity. Both of these actions will cause gaps to appear at the mating surface between the flange and the cover plate. Over long-term use, due to gravity or the expansion and contraction of the bladder, the metal flange and the cover plate may loosen, leading to air leakage. Utility Model Content

[0004] This utility model provides a flange sealing device for a capsule-type oil tank. When the capsule is opened for storage, gas can easily enter the tank from between the cover plate and the metal flange, which can damage the stability of the oil inside the tank. During long-term use, the metal flange and the cover plate may loosen due to gravity or the expansion and contraction of the air bladder, resulting in air leakage.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a flange sealing device for a capsule-type oil tank, including an oil tank, a notch on the oil tank, a receiving flange at the notch, a capsule inside the oil tank, a metal flange on the capsule, a cover plate on the metal flange, the cover plate being connected to the receiving flange, a breathing tube on the cover plate, the breathing tube passing through the cover plate and the metal flange, and one end of the breathing tube being connected to the capsule.

[0006] In the preferred embodiment, the receiving flange is connected to the metal flange via a fourth bolt.

[0007] In the preferred embodiment, the oil tank has a hollow structure, and the capsule is located inside the oil tank.

[0008] In the preferred embodiment, the metal flange has a first annular groove on the top, a second annular groove on the metal flange, a plurality of second through holes at the bottom of the second annular groove, the second through holes being connected to the receiving flange by a fourth bolt, and pipe holes on the metal flange.

[0009] In a preferred embodiment, the bottom of the metal flange is provided with a fourth annular groove, a fourth sealing ring is provided on the fourth annular groove, and a first sealing gasket is provided on the first annular groove.

[0010] In the preferred embodiment, the bottom of the cover plate is provided with a hollow connecting sleeve, the top of the cover plate is provided with a boss, and the cover plate is provided with a first through hole, through which the breathing tube passes.

[0011] In the preferred embodiment, the top of the metal flange rests against the connecting sleeve, the first bolt passes through the countersunk hole and the bolt hole, the cover plate is provided with a vent hole and multiple mounting bolt holes, and the second bolt is installed on the mounting bolt holes.

[0012] In the preferred embodiment, the vent hole is provided with a spiral vent plug, the bottom of the connecting sleeve is provided with multiple screw holes, a support bolt is installed on the screw holes, one end of the support bolt abuts against the second annular groove, and the top of the cover plate is provided with multiple limit bolt holes.

[0013] In the preferred embodiment, the breathing tube is provided with a second flange, which abuts against the boss, and a third bolt passes through the second flange and is installed on the limit bolt hole.

[0014] The beneficial effects of this utility model are as follows: the capsule is placed inside the oil storage tank, the fourth sealing ring is placed in the fourth annular groove, and the metal flange is connected to the capsule through the receiving flange. Then, the first sealing ring body is placed in the first annular groove of the first flange, and the cover plate is connected to the first flange through the second bolt and nut.

[0015] Insert the first bolt into the countersunk hole and through the sealing gasket, simultaneously connecting it to the metal flange. Then, connect the support bolt to the threaded hole on the sleeve sidewall, ensuring the support bolt supports the metal flange. Finally, place the second sealing ring into the second annular groove, and the third sealing ring into the third annular groove. Connect the second flange of the breather tube to the upper surface of the boss using the third bolt, completing the installation.

[0016] When the entire device is in operation, the capsule expands or contracts through the breather tube according to the oil level inside the tank. A connecting sleeve is provided on the lower surface of the cover plate. The metal flange at the top of the capsule is inserted into the connecting sleeve, and a first annular groove is formed on the outer periphery of the top of the metal flange. A first sealing gasket is placed in the first annular groove. On the one hand, the connection between the metal flange and the connecting sleeve greatly improves the stability and sealing between the metal flange and the cover plate. On the other hand, the cooperation of the first sealing gasket in the first annular groove further ensures the sealing between the metal flange and the cover plate, thus preventing air from entering the tank from between the metal flange and the cover plate. A second annular groove is formed on the side wall of the metal flange, and multiple support bolts are provided on the side wall of the connecting sleeve. These support bolts support the top of the second annular groove of the metal flange, thus preventing loosening and air leakage between the metal flange and the cover plate due to gravity or the expansion and contraction of the capsule during long-term use. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments; Figure 1 This is a side view of the overall structure of this utility model; Figure 2 This is a utility model Figure 1 A magnified view of A in the middle; Figure 3 This is a sectional view of the cover plate of this utility model; Figure 4 This is a cross-sectional view of the metal flange of this utility model; In the diagram: Oil tank 1; Elevation seat 101; First flange 102; First annular groove 103; Receiving flange 2; Capsule 3; Metal flange 4; First annular groove 401; Second annular groove 402; Fourth annular groove 403; Second through hole 404; Bolt hole 405; Pipe hole 406; Cover plate 5; Connecting sleeve 501; Screw hole 502; Boss 503; Countersunk hole 504; First through hole 505; Limit bolt hole 506; Vent hole 507; Mounting bolt hole 508; Breather pipe 6; Second flange 601; Spiral vent plug 7. Detailed Implementation

[0018] Example 1: like Figure 1-4The flange sealing device for a capsule-type oil tank includes an oil tank 1 with a notch and a receiving flange 2 at the notch. A capsule 3 is located inside the oil tank 1, and a metal flange 4 is mounted on the capsule 3. A cover plate 5 is mounted on the metal flange 4 and connected to the receiving flange 2. A breather pipe 6 is mounted on the cover plate 5, passing through the cover plate 5 and the metal flange 4, with one end connected to the capsule 3. With this structure, the capsule 3 is placed inside the oil tank 1, a fourth sealing ring is placed in a fourth annular groove 403, and the metal flange 4 is connected to the capsule 3 via the receiving flange 2. Then, a first sealing ring is placed in a first annular groove of a first flange 102, and the cover plate 5 is connected to the first flange 102 using second bolts and nuts.

[0019] Insert the first bolt into the countersunk hole 504 and through the sealing gasket, and connect it to the metal flange 4. Then connect the support bolt to the bolt hole 502 on the side wall of the sleeve 501, and let the support bolt support the metal flange 4. Finally, place the second sealing ring into the second annular groove, place the third sealing ring into the third annular groove, and connect the second flange 601 of the breather pipe 6 to the upper surface of the boss 503 with the third bolt to complete the installation.

[0020] When the entire device is in operation, the capsule 3 expands or contracts through the breather tube 6 according to the amount of oil inside the oil tank 1. A connecting sleeve 501 is provided on the lower surface of the cover plate 5. The metal flange 4 at the top of the capsule 3 is inserted into the connecting sleeve 501. A first annular groove 401 is formed on the outer periphery of the top of the metal flange 4. A first sealing gasket is provided in the first annular groove 401. On the one hand, the connection between the metal flange 4 and the connecting sleeve 501 greatly improves the stability and sealing between the metal flange 4 and the cover plate 5. On the other hand, the cooperation of the first sealing gasket in the first annular groove 401 further ensures the sealing between the metal flange 4 and the cover plate 5, thereby preventing air from entering the tank body from between the metal flange 4 and the cover plate 5. The side wall of the metal flange 4 is provided with a second annular groove 402, and the side wall of the connecting sleeve 501 is provided with multiple support bolts. The support bolts are supported on the top of the second annular groove 402 of the metal flange 4, thereby preventing the metal flange 4 from becoming loose and leaking air due to gravity or the expansion and contraction of the capsule 3 during long-term use.

[0021] In the preferred embodiment, the receiving flange 2 is connected to the metal flange 4 via a fourth bolt. With this structure, the bottom of the metal flange 4 is connected to the receiving flange 2 via multiple fourth bolts.

[0022] In the preferred embodiment, the oil tank 1 has a hollow structure, and the capsule 3 is located inside the oil tank 1. With this structure, a riser 101 is provided at the opening of the oil tank 1, and a first flange 102 is provided on the top of the riser 101. A first annular groove 103 is formed on the upper surface of the first flange 102, and a first sealing ring is provided within the first annular groove 103. The first sealing ring is tightly connected to the cover plate 5. The first flange 102 is connected to the cover plate 5 by a first bolt. In a preferred embodiment, the metal flange 4 has a first annular groove 401 at its top, a second annular groove 402 on its surface, and multiple second through holes 404 at the bottom of the second annular groove 402. The second through holes 404 are connected to the receiving flange 2 by a fourth bolt, and the metal flange 4 has a pipe hole 406. With this structure, the fourth bolt abuts against the second through holes 404.

[0023] In a preferred embodiment, the metal flange 4 has a fourth annular groove 403 at its bottom, a fourth sealing ring on the fourth annular groove 403, and a first sealing gasket on the first annular groove 401. With this structure, the bottom of the metal flange 4, located at the second annular groove 402, is connected to the receiving flange 2 by a fourth bolt, thereby enabling connection and disassembly between the metal flange 4 and the receiving flange 2.

[0024] In a preferred embodiment, the cover plate 5 has a hollow connecting sleeve 501 at its bottom and a boss 503 at its top. The cover plate 5 also has a first through hole 505, through which the breather tube 6 passes. With this structure, the top surface of the boss 503 has a second annular groove and a third annular groove. The inner diameter of the second annular groove is smaller than the distance from the countersunk hole 504 to the first through hole 505, and the inner diameter of the third annular groove is larger than the distance from the countersunk hole 504 to the first through hole 505. A second sealing ring is installed in the second annular groove, and a third sealing ring is installed in the third annular groove.

[0025] In the preferred embodiment, the top of the metal flange 4 rests against the connecting sleeve 501. The first bolt passes through the countersunk hole 504 and the bolt hole 405. The cover plate 5 is provided with a vent hole 507 and multiple mounting bolt holes 508. The second bolt is installed in the mounting bolt holes 508. With this structure, the capsule 3 is placed inside the oil tank 1, the fourth sealing ring is placed in the fourth annular groove 403, and the metal flange 4 is connected to the capsule 3 through the receiving flange 2. Then, the first sealing ring body is placed in the first annular groove of the first flange 102, and the cover plate 5 is connected to the first flange 102 by the second bolt and nut.

[0026] In a preferred embodiment, the vent 507 is equipped with a spiral vent plug 7, the bottom of the connecting sleeve 501 has multiple screw holes 502, and support bolts are installed in the screw holes 502. One end of the support bolt abuts against the second annular groove 402, and the top of the cover plate 5 has multiple limit bolt holes 506. With this structure, the gas inside the capsule 3 can be discharged or inhaled through the breathing tube 6 via the first through hole 505 and the second through hole 404. The cover plate 5 also has a through vent, and the spiral vent plug 7 is provided at the vent 507 on the cover plate 5 for the discharge of gas inside the oil tank 1.

[0027] The second flange 601 of the breathing tube 6 is connected to the upper surface of the boss 503 by a third bolt, which abuts against the limit bolt hole 506.

[0028] In the preferred embodiment, the breathing tube 6 is provided with a second flange 601, which abuts against the boss 503, and a third bolt passes through the second flange 601 and is installed in the limit bolt hole 506.

[0029] The above embodiments are merely preferred technical solutions of this utility model and should not be considered as limitations on this utility model. The protection scope of this utility model should be the technical solution described in the claims, including equivalent substitutions of the technical features described in the claims. That is, equivalent substitutions and improvements within this scope are also within the protection scope of this utility model.

Claims

1. A flange sealing device for capsule-type oil tanks, characterized in that: Includes an oil storage tank (1), an oil storage tank (1) with a notch, a receiving flange (2) at the notch, a capsule (3) inside the oil storage tank (1), a metal flange (4) on the capsule (3), a cover plate (5) on the metal flange (4), the cover plate (5) being connected to the receiving flange (2), a breathing tube (6) on the cover plate (5), the breathing tube (6) passing through the cover plate (5) and the metal flange (4), and one end of the breathing tube (6) being connected to the capsule (3); The bottom of the cover plate (5) is provided with a hollow connecting sleeve (501), the top of the cover plate (5) is provided with a boss (503), the cover plate (5) is provided with a first through hole (505), and the breathing tube (6) passes through the first through hole (505) and the tube hole (406). The top of the metal flange (4) rests against the connecting sleeve (501), the first bolt passes through the countersunk hole (504) and the bolt hole (405), the cover plate (5) is provided with a vent hole (507) and multiple mounting bolt holes (508), and the second bolt is installed on the mounting bolt hole (508); The vent hole (507) is provided with a spiral vent plug (7), the bottom of the connecting sleeve (501) is provided with multiple screw holes (502), the screw holes (502) are provided with support bolts, one end of the support bolts abuts against the second ring groove (402), and the top of the cover plate (5) is provided with multiple limit bolt holes (506).

2. The flange sealing device for a capsule-type oil tank according to claim 1, characterized in that: The receiving flange (2) is connected to the metal flange (4) by the fourth bolt.

3. The flange sealing device for a capsule-type oil tank according to claim 1, characterized in that: The oil storage tank (1) has a hollow structure, and the capsule (3) is located inside the oil storage tank (1).

4. The flange sealing device for a capsule-type oil tank according to claim 1, characterized in that: The metal flange (4) has a first annular groove (401) on top and a second annular groove (402) on top. The second annular groove (402) has multiple second through holes (404) at the bottom. The second through holes (404) are connected to the receiving flange (2) by a fourth bolt. The metal flange (4) has a pipe hole (406).

5. The flange sealing device for a capsule-type oil tank according to claim 4, characterized in that: The metal flange (4) has a fourth annular groove (403) at the bottom, a fourth sealing ring on the fourth annular groove (403), and a first sealing gasket on the first annular groove (401).

6. The flange sealing device for a capsule-type oil tank according to claim 1, characterized in that: The breathing tube (6) is provided with a second flange (601), which abuts against the boss (503). A third bolt passes through the second flange (601) and is installed on the limit bolt hole (506).

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