A stainless steel oil tank thermal expansion compensation structure

Abstract

This utility model provides a thermal expansion compensation structure for a stainless steel oil tank, relating to the field of expansion compensation technology. It includes: an oil tank body; an instrument for pressure detection mounted on the oil tank body; two corrugated compensators connected to the oil tank body, capable of expansion and contraction; two annular first seats symmetrically welded to the outer wall of the oil tank body; two guide rods symmetrically welded to the outer side of each first seat; a second seat sliding on the two guide rods on the left and right sides; two hydraulic cylinders symmetrically fixed to the outer side of each first seat; and the extended ends of the four hydraulic cylinders respectively fixed to the two second seats. All four hydraulic cylinders are driven by an external hydraulic pump. This application effectively copes with thermal expansion: the extension of the hydraulic cylinders drives the second seats to move outward along the guide rods, coordinating with the expansion and contraction of the corrugated compensators to achieve mechanical expansion compensation for the oil tank body, enhancing structural adaptability.

Description

Technical Field

[0001] This utility model belongs to the field of expansion compensation technology, and more specifically, it relates to a stainless steel oil tank thermal expansion compensation structure. Background Technology

[0002] The stainless steel oil tank thermal expansion compensation structure is an auxiliary device used in stainless steel oil tanks. Its main function is to cope with the volume expansion of the oil tank caused by temperature changes (such as heating) during use, to prevent the oil tank from being damaged by excessive stress due to thermal expansion, and at the same time to ensure the sealing and safety of the oil tank.

[0003] The existing device has a simple expansion compensation structure, and it cannot provide auxiliary compensation when the expansion compensation structure is damaged. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides a stainless steel oil tank thermal expansion compensation structure, which solves the problem that existing devices have a single expansion compensation structure and cannot provide auxiliary compensation when the expansion compensation structure is damaged.

[0005] The purpose and effect of this utility model's stainless steel oil tank thermal expansion compensation structure are achieved through the following specific technical means: A stainless steel oil tank thermal expansion compensation structure includes an oil tank body; an instrument for pressure detection is installed on the oil tank body, and two corrugated compensators are connected to the oil tank body, which are capable of expansion and contraction. Two annular first seats are symmetrically welded to the outer wall of the oil tank body, and two guide rods are symmetrically welded to the outer side of each first seat. A second seat slides on the two guide rods on the left and the two guide rods on the right. Two hydraulic cylinders are symmetrically fixed to the outer side of each first seat, and the extended ends of the four hydraulic cylinders are respectively fixed to the two second seats. All four hydraulic cylinders are driven by an external hydraulic pump.

[0006] Furthermore, the first seat, the guide rod, the second seat, and the hydraulic cylinder together form the first compensation part; a sealing cover is fixed on the top of the oil tank body. The sealing cover has a stepped structure, with the outer wall of the lower half of the sealing cover in contact with the inner wall of the oil tank body, and the bottom surface of the upper half of the sealing cover in contact with the top surface of the oil tank body.

[0007] Furthermore, a baffle is welded to the inner wall of the main body of the oil tank. The baffle has a ring structure, and the upper end face of the baffle contacts the bottom end face of the sealing cover.

[0008] Furthermore, a second compensation part is installed on the sealing cover. The second compensation part consists of a pressure relief pipe, an installation pipe, a sliding seat, a sliding rod, a sealing ball, a retaining ring, and a helical spring. The sealing cover is connected to a pressure relief pipe, and the pressure relief pipe is connected to an installation pipe. The diameter of the installation pipe is larger than the diameter of the pressure relief pipe, and the installation pipe is connected to an external gas collection chamber.

[0009] Furthermore, a sliding seat is welded inside the pressure relief pipe, and a sliding rod slides on the sliding seat. A sealing ball is welded to one end of the sliding rod. The sealing ball contacts one end of the pressure relief pipe. The diameter of the sealing ball is larger than the diameter of the pressure relief pipe. The pressure relief pipe is sealed under the obstruction of the sealing ball.

[0010] Furthermore, a retaining ring is welded onto the sliding rod, and a helical spring is sleeved on the sliding rod. The lower end of the helical spring contacts the retaining ring, and the upper end of the helical spring contacts the sliding seat.

[0011] Furthermore, the bottom of the oil tank body is welded to the base, and two rectangular groove-shaped auxiliary grooves are symmetrically opened on the bottom end face of the base.

[0012] Compared with the prior art, the present invention has the following beneficial effects: This application utilizes a corrugated compensator on the main body of the oil tank and a first compensation part consisting of a first seat, a guide rod, a second seat, and a hydraulic cylinder to effectively cope with thermal expansion: the extension of the hydraulic cylinder drives the second seat to move outward along the guide rod, which, in conjunction with the extension and retraction of the corrugated compensator, achieves mechanical expansion compensation for the main body of the oil tank, thereby enhancing structural adaptability.

[0013] The sealing cover of this application adopts a stepped structure, with the outer wall of the lower half contacting the inner wall of the oil tank body, and the bottom surface of the upper half contacting the top surface of the oil tank body. At the same time, the annular stop welded to the inner wall of the oil tank body contacts the bottom surface of the sealing cover. This dual design significantly improves the sealing performance between the sealing cover and the oil tank body, ensuring the airtightness of the oil tank.

[0014] The second compensation part on the sealing cover of this application can achieve pressure balance: when the pressure in the oil tank increases, it will push open the sealing ball, and the excess gas will be discharged into the gas collection chamber through the pressure relief pipe and the installation pipe to avoid excessive pressure and further assist in expansion compensation. Attached Figure Description

[0015] Figure 1 This is a three-dimensional view of the stainless steel oil tank thermal expansion compensation structure of this utility model after being cut open.

[0016] Figure 2 This is a utility model Figure 1 Enlarged view of point A.

[0017] Figure 3 This is a utility model Figure 1 Enlarged view of point B.

[0018] Figure 4 This is a front view of the stainless steel oil tank thermal expansion compensation structure of this utility model after being cut open.

[0019] Figure 5 This is a front view of the stainless steel oil tank thermal expansion compensation structure of this utility model.

[0020] Figure 6 This is a perspective view of the stainless steel oil tank thermal expansion compensation structure of this utility model.

[0021] In the diagram, the correspondence between component names and drawing numbers is as follows: 1. Oil tank body; 101. Corrugated compensator; 102. Base; 103. Auxiliary groove; 104. Sealing cover; 105. Stop seat; 2. First compensation part; 201. First seat body; 202. Guide rod; 203. Second seat body; 204. Hydraulic cylinder; 3. Second compensation part; 301. Pressure relief pipe; 302. Mounting pipe; 303. Sliding seat; 304. Sliding rod; 305. Sealing ball; 306. Retaining ring; 307. Helical spring. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0023] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The use of terms such as "a," "an," or "the" in this utility model patent application specification and claims does not indicate a quantity limitation, but rather indicates the presence of at least one. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the element or object listed following the word and its equivalents. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; these relative positional relationships may change accordingly when the absolute position of the described object changes.

[0024] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples.

[0025] Example 1: As shown in the attached document Figure 1 To be continued Figure 6 As shown: This utility model provides a stainless steel oil tank thermal expansion compensation structure, including an oil tank body 1; an instrument for pressure detection is installed on the oil tank body 1, and two corrugated compensators 101 are connected to the oil tank body 1. The corrugated compensators 101 are capable of extension and retraction. Two annular first seats 201 are symmetrically welded to the outer wall of the oil tank body 1. Two guide rods 202 are symmetrically welded to the outer side of each first seat 201. A second seat 203 slides on the two guide rods 202 on the left and the two guide rods 202 on the right. Two hydraulic cylinders 204 are symmetrically fixed to the outer side of each first seat 201. The extended ends of the four hydraulic cylinders 204 are respectively fixed to the two second seats 203. The four hydraulic cylinders 204 are all driven by an external hydraulic pump. During expansion compensation, the four hydraulic cylinders 204 are driven to extend, and the four hydraulic cylinders 204 drive the two second seats 203 to move outward, thereby realizing the expansion compensation of the oil tank body 1.

[0026] The first base 201, guide rod 202, second base 203 and hydraulic cylinder 204 together form the first compensation part 2; a sealing cover 104 is fixed on the top of the oil tank body 1. The sealing cover 104 has a stepped structure. The outer wall of the lower half of the sealing cover 104 contacts the inner wall of the oil tank body 1, and the bottom end face of the upper half of the sealing cover 104 contacts the top end face of the oil tank body 1. During use, the sealing performance between the sealing cover 104 and the oil tank body 1 can be improved by the stepped structure of the sealing cover 104.

[0027] The sealing cover 104 is equipped with a second compensation part 3, which consists of a pressure relief pipe 301, an installation pipe 302, a sliding seat 303, a sliding rod 304, a sealing ball 305, a retaining ring 306, and a coil spring 307. The sealing cover 104 is connected to the pressure relief pipe 301, and the pressure relief pipe 301 is connected to the installation pipe 302. The diameter of the installation pipe 302 is larger than the diameter of the pressure relief pipe 301, and the installation pipe 302 is connected to the external gas collection chamber.

[0028] The pressure relief pipe 301 has a sliding seat 303 welded inside, and a sliding rod 304 slides on the sliding seat 303. A sealing ball 305 is welded to one end of the sliding rod 304. The sealing ball 305 contacts the upper end of the pressure relief pipe 301. The diameter of the sealing ball 305 is larger than the diameter of the pressure relief pipe 301. Under the obstruction of the sealing ball 305, the pressure relief pipe 301 is in a sealed state.

[0029] A retaining ring 306 is welded onto the sliding rod 304, and a helical spring 307 is sleeved on the sliding rod 304. The lower end of the helical spring 307 contacts the retaining ring 306, and the upper end of the helical spring 307 contacts the sliding seat 303. When the pressure inside the oil tank body 1 increases, it will push open the sealing ball 305. After the sealing ball 305 moves upward, the excess gas inside the oil tank body 1 will be discharged into the gas collection chamber through the pressure relief pipe 301 and the installation pipe 302, ensuring the pressure balance inside the oil tank body 1 and realizing expansion compensation again.

[0030] The bottom of the oil tank body 1 is welded to the base 102. The bottom end face of the base 102 has two rectangular groove-shaped auxiliary grooves 103. When transferring the oil tank body 1, the forklift arm can be directly inserted into the auxiliary grooves 103 for transfer, which is convenient.

[0031] Example 2: Based on Example 1, a baffle 105 is welded to the inner wall of the oil tank body 1. The baffle 105 has an annular structure, and the upper end face of the baffle 105 contacts the bottom end face of the sealing cover 104. During use, the sealing performance between the sealing cover 104 and the oil tank body 1 can be improved again.

[0032] Working principle: When using this stainless steel oil tank, the stepped structure of the sealing cover 104 and its contact with the baffle 105 ensure the sealing performance of the main body 1 of the oil tank. When the oil tank expands due to temperature changes, the pressure detection instrument can provide a warning. At this time, the operator starts the external hydraulic pump to drive the four hydraulic cylinders 204 to extend, which drives the two second seats 203 to slide outward along the guide rod 202. This, combined with the expansion and contraction of the corrugated compensator 101 on the main body 1 of the oil tank, achieves structural expansion compensation. If the pressure inside the main body 1 of the oil tank increases, the gas pressure will push open the sealing ball 305, allowing the excess gas to be discharged into the external gas collection chamber through the pressure relief pipe 301 and the installation pipe 302. At this time, the sliding rod 304 moves upward along the sliding seat 303, the retaining ring 306 compresses the helical spring 307, and after the pressure is balanced, the helical spring 307 returns to its original position, and the sealing ball 305 re-seals the pressure relief pipe 301 to ensure pressure stability. When the oil tank needs to be moved, the forklift arm can be inserted into the auxiliary groove 103 of the base 102 for easy movement.

[0033] Although this application has been described with reference to the foregoing embodiments, those skilled in the art will understand that various changes can be made without departing from the spirit and scope of this application as defined by the appended claims. While this specification contains details of many specific implementations, these should not be construed as limiting the scope of the claims, but rather as descriptions of features specific to particular embodiments. The scope of this application is defined by the appended claims and their equivalents, and is not limited to the embodiments described above.

Claims

1. A stainless steel oil tank thermal expansion compensation structure, characterized in that: The system includes an oil tank body (1); an instrument for pressure detection is installed on the oil tank body (1), and two corrugated compensators (101) are connected to the oil tank body (1). The corrugated compensators (101) can extend and retract. Two first seats (201) with annular structures are symmetrically welded on the outer wall of the oil tank body (1). Two guide rods (202) are symmetrically welded on the outer side of each first seat (201). A second seat (203) slides on the two guide rods (202) on the left side, and a second seat (203) also slides on the two guide rods (202) on the right side. Two hydraulic cylinders (204) are symmetrically fixed on the outer side of each first seat (201). The extended ends of the four hydraulic cylinders (204) are respectively fixed on the two second seats (203). The four hydraulic cylinders (204) are all driven by an external hydraulic pump.

2. The stainless steel oil tank thermal expansion compensation structure as described in claim 1, characterized in that: The first seat (201), the guide rod (202), the second seat (203) and the hydraulic cylinder (204) together form the first compensation part (2); the top of the oil tank body (1) is fixed with a sealing cover (104), the sealing cover (104) is a stepped structure, the outer wall of the lower half of the sealing cover (104) is in contact with the inner wall of the oil tank body (1), and the bottom end face of the upper half of the sealing cover (104) is in contact with the top end face of the oil tank body (1).

3. The stainless steel oil tank thermal expansion compensation structure as described in claim 1, characterized in that: A baffle (105) is welded on the inner wall of the oil tank body (1). The baffle (105) has a ring structure and the upper end face of the baffle (105) is in contact with the bottom end face of the sealing cover (104).

4. The stainless steel oil tank thermal expansion compensation structure as described in claim 3, characterized in that: The sealing cover (104) is equipped with a second compensation part (3), which consists of a pressure relief pipe (301), an installation pipe (302), a sliding seat (303), a sliding rod (304), a sealing ball (305), a retaining ring (306), and a helical spring (307). The sealing cover (104) is connected to the pressure relief pipe (301), and the pressure relief pipe (301) is connected to the installation pipe (302). The diameter of the installation pipe (302) is larger than the diameter of the pressure relief pipe (301), and the installation pipe (302) is connected to the external gas collection chamber.

5. The stainless steel oil tank thermal expansion compensation structure as described in claim 4, characterized in that: The pressure relief pipe (301) is welded with a sliding seat (303), and a sliding rod (304) slides on the sliding seat (303). A sealing ball (305) is welded to one end of the sliding rod (304). The sealing ball (305) contacts one end of the pressure relief pipe (301). The diameter of the sealing ball (305) is larger than the diameter of the pressure relief pipe (301). Under the obstruction of the sealing ball (305), the pressure relief pipe (301) is in a sealed state.

6. The stainless steel oil tank thermal expansion compensation structure as described in claim 5, characterized in that: A retaining ring (306) is welded onto the sliding rod (304), and a helical spring (307) is sleeved on the sliding rod (304). The lower end of the helical spring (307) contacts the retaining ring (306), and the upper end of the helical spring (307) contacts the sliding seat (303).

7. The stainless steel oil tank thermal expansion compensation structure as described in claim 1, characterized in that: The bottom of the oil tank body (1) is welded to the base (102), and the bottom end face of the base (102) has two rectangular groove-shaped auxiliary grooves (103).

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