Valve rust removal tank

Abstract

The utility model discloses a valve derusting groove which comprises a groove bottom, a groove wall and a groove cover, an inner cavity is defined by the groove bottom, the groove wall and the groove cover, a wrapping body is wrapped outside the groove wall, an outer cavity is formed between the inner wall of the wrapping body and the outer wall of the groove wall, and a heat exchanger is arranged in the outer cavity. Heat in reaction is removed in time, so that the quality of a workpiece is prevented from being influenced.

Description

Technical Field

[0001] The utility model relates to the production of metal parts, and more specifically to a valve rust removal tank. Background Art

[0002] Many metal parts such as valves are made of iron. In the production of metal parts, rust removal process is often required (such as before painting). Taking valves as an example, oxygen valves, cryogenic valves, and high-pressure hydrogenation valves have higher requirements for rust removal process.

[0003] Rust removal is the use of acid to remove oxides on the surface of the workpiece to be processed. In rust removal, sulfuric acid is usually used as the acid. The reaction of iron oxide and sulfuric acid is an exothermic reaction. The rust removal operation is to put a large number of valve parts into a holding device similar to a workpiece basket, and then put them into a rust removal tank for rust removal. Due to the large number of parts to be processed, the heat released by the reaction during the rust removal operation causes the acid temperature to gradually rise. Metal parts, especially precision valves, are more sensitive to temperature, which affects the quality of subsequent workpieces. Utility Model Content

[0004] In view of the above problems, the utility model provides a valve rust removal tank, which can remove the heat in the reaction in time to avoid affecting the quality of the workpiece.

[0005] A valve rust removal groove comprises a groove bottom, a groove wall and a groove cover, wherein the groove bottom, the groove wall and the groove cover form an inner cavity, the groove wall is coated with a coating body, an outer cavity is formed between the inner wall of the coating body and the outer wall of the groove wall, and a heat exchanger is installed in the outer cavity.

[0006] Optionally, an overflow pipe is provided on the groove wall above the coating body, and the groove bottom includes a bottom layer and an upper layer, the edge portion of the bottom layer is connected to the bottom surface of the groove wall, and the upper layer is connected to the groove wall. The groove bottom also includes a partition plate, which is arranged adjacent to the groove wall, the upper end of the groove wall is connected to the upper layer, and the lower end is connected to the bottom layer. The partition plate, the upper layer and the bottom layer enclose a liquid separation cavity. A liquid inlet hole is provided on the bottom layer, and the liquid inlet hole is located below the gap between the partition plate and the groove wall. The liquid inlet hole and the gap between the partition plate and the groove wall form a liquid inlet channel. The partition plate has a liquid inlet channel, and the liquid inlet channel is connected to the liquid inlet channel and the liquid separation cavity, respectively. A number of liquid outlet holes are equidistantly provided on the upper layer, and the liquid outlet holes are connected to the liquid separation cavity and the inner cavity, respectively. The liquid inlet hole is connected to a liquid inlet pipe, and the liquid inlet pipe is connected to a circulation pump.

[0007] Optionally, the aperture of the liquid outlet is 1-3 mm, and the opening rate is 40-70%.

[0008] Optionally, among the liquid outlet holes, the aperture of the liquid outlet hole located in the area of ​​the workpiece to be processed is larger than the aperture of the liquid outlet hole located outside the area of ​​the workpiece to be processed.

[0009] Optionally, the heat exchanger is a coil heat exchanger.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] The valve rust removal groove provided by the utility model removes the heat in the reaction in time to avoid affecting the quality of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0013] Figure 1 This is a schematic diagram of the overall structure of the valve derusting tank of the utility model;

[0014] Figure 2 It is a schematic diagram of the structure of the heat exchanger of the utility model;

[0015] Figure 3 yes Figure 1 A magnified schematic diagram;

[0016] Figure 4 yes Figure 1 Enlarged schematic diagram at B;

[0017] Figure 5 yes Figure 1 Enlarged schematic diagram at point C.

[0018] Explanation of the accompanying drawings: 1. Tank bottom, 2. Tank wall, 3. Tank cover, 4. Inner cavity, 5. Encapsulation body, 6. Outer cavity, 7. Heat exchanger, 8. Cold mass inlet pipe, 9. Cold mass outlet pipe, 10. Overflow pipe, 11. Bottom layer, 12. Upper layer, 13. Partition, 14. Liquid separation cavity, 15. Liquid inlet hole, 16. Liquid inlet channel, 17. Liquid inlet channel, 18. Liquid outlet hole. DETAILED DESCRIPTION

[0019] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, or it can be an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0020] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present invention. In the description of the present invention, "multiple" means two or more, unless otherwise precisely and specifically specified.

[0021] The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0022] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0023] The following specific embodiments are used to describe the technical solution of the utility model in detail. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described in detail in some embodiments.

[0024] Example 1

[0025] Please refer to Figure 1-Figure 2 , Figure 1 This is a schematic diagram of the overall structure of the valve rust removal tank provided by the utility model. Figure 2 This is a schematic diagram of the structure of the heat exchanger of the utility model.

[0026] A valve rust removal tank comprises a tank bottom 1, a tank wall 2 and a tank cover 3. The tank bottom 1, the tank wall 2 and the tank cover 3 form an inner cavity 4. The tank wall 2 is coated with a coating 5. An outer cavity 6 is formed between the inner wall of the coating 5 and the outer wall of the tank wall 2. A heat exchanger 7 is installed in the outer cavity 6.

[0027] By providing an outer cavity 6 and installing a heat exchanger 7 in the outer cavity 6, the heat generated by the reaction can be timely exchanged and removed through the heat exchanger 7, thereby maintaining a constant working temperature and improving the quality of the workpiece.

[0028] What those skilled in the art need to understand is that, in the present invention, the tank cover 3 can be detachably connected to the top of the tank wall 2 via a connecting flange to form a seal after connection (to prevent acid gas from overflowing and polluting the working environment), or can be connected via other detachable methods, as long as it is detachable after connection. Those skilled in the art can make specific choices based on actual conditions, and no special limitations are made herein.

[0029] Those skilled in the art also need to understand that the cold mass inlet pipe 8 of the heat exchanger 7 is located near the bottom of the sheath 5 , the sheath 5 is provided with a hole allowing the cold mass inlet pipe 8 to pass through, and the cold mass outlet pipe 9 of the heat exchanger 7 is located near the top of the sheath 5 .

[0030] In one or more specific embodiments of the present invention, the heat exchanger 7 is a coil heat exchanger.

[0031] It should be understood by those skilled in the art that, during installation, a carrier for placing the coil heat exchanger can be formed on the outer surface of the tank wall 2, the coil heat exchanger can be placed on the carrier, and then the wall can be installed, and finally the port can be sealed. Those skilled in the art can also install it in other ways, as long as the heat exchanger 7 is installed in the outer cavity 6 after installation, which is not particularly limited here, and those skilled in the art can make specific choices according to actual conditions.

[0032] In one or more specific embodiments of the present invention, the cold mass is water.

[0033] Example 2

[0034] In Example 1, although a heat exchanger is provided to transfer the heat produced by the reaction and to stabilize the temperature during the entire rust removal process, the workpiece to be processed and the acid body are relatively stationary, which affects the working effect and thus reduces the product quality of the workpiece.

[0035] Please refer again Figure 1-Figure 2 , and references Figure 3-Figure 5 , Figure 3 for Figure 1 A enlarged schematic diagram, Figure 4 for Figure 1 The enlarged schematic diagram at B is Figure 1 Enlarged schematic diagram at point C.

[0036] A valve rust removal tank, comprising a tank bottom 1, a tank wall 2 and a tank cover 3, wherein the tank bottom 1, the tank wall 2 and the tank cover 3 form an inner cavity 4, the tank wall 2 is coated with a coating 5, an outer cavity 6 is formed between the inner wall of the coating 5 and the outer wall of the tank wall 2, a heat exchanger 7 is installed in the outer cavity 6, an overflow pipe 10 is provided on the tank wall 2 above the coating 5, the tank bottom 1 comprises a bottom layer 11 and an upper layer 12, the edge of the bottom layer 11 is connected to the bottom surface of the tank wall 2, the upper layer 12 is connected to the tank wall 2, the tank bottom 1 further comprises a partition 13, the partition 13 is arranged adjacent to the tank wall 2, the upper end of the tank wall 2 is connected to the upper layer 12, and the lower end is connected to the bottom layer 1 1, the partition 13 and the upper layer 12 and the bottom layer 11 enclose a liquid separation chamber 14, the bottom layer 11 is provided with a liquid inlet hole 15, the liquid inlet hole 15 is located below the gap between the partition 13 and the groove wall 2, the liquid inlet hole 15 and the gap between the partition 13 and the groove wall 2 form a liquid inlet channel 16, the partition 13 is provided with a liquid inlet channel 17, the liquid inlet channel 17 is respectively connected with the liquid inlet channel 16 and the liquid separation chamber 14, a plurality of liquid outlet holes 18 are equidistantly provided on the upper layer 12, the liquid outlet holes 18 are respectively connected with the liquid separation chamber 14 and the inner cavity 4, the liquid inlet hole 15 is connected with a liquid inlet pipe (not shown in the figure), and the liquid inlet pipe is connected with a circulation pump.

[0037] By providing an outer cavity 6 and installing a heat exchanger 7 in the outer cavity 6, the heat generated by the reaction is timely exchanged and removed through the heat exchanger 7, the working temperature is constant, and the quality of the workpiece is improved. At the same time, through the arrangement of the overflow pipe 10, the bottom layer 11, the upper layer 12, the partition 13, the liquid separation cavity 14, the liquid inlet hole 15, the liquid inlet channel 16, the liquid inlet channel 17, the liquid outlet hole 18 and the circulating pump, when the workpiece is to be processed for rust removal, the liquid flows, the relationship of being static with each other is changed, and the acid concentration in the liquid separation cavity 14 is made to be basically the same, thereby improving the working efficiency and product quality.

[0038] What those skilled in the art need to understand is that, in the present invention, the tank cover 3 can be detachably connected to the top of the tank wall 2 via a connecting flange to form a seal after connection (to prevent acid gas from overflowing and polluting the working environment), or can be connected via other detachable methods, as long as it is detachable after connection. Those skilled in the art can make specific choices based on actual conditions, and no special limitations are made herein.

[0039] Those skilled in the art also need to understand that the cold mass inlet pipe 8 of the heat exchanger 7 is located near the bottom of the sheath 5 , the sheath 5 is provided with a hole allowing the cold mass inlet pipe 8 to pass through, and the cold mass outlet pipe 9 of the heat exchanger 7 is located near the top of the sheath 5 .

[0040] In one or more specific embodiments of the present invention, the heat exchanger 7 is a coil heat exchanger.

[0041] It should be understood by those skilled in the art that, during installation, a carrier for placing the coil heat exchanger can be formed on the outer surface of the tank wall 2, the coil heat exchanger can be placed on the carrier, and then the wall can be installed, and finally the port can be sealed. Those skilled in the art can also install it in other ways, as long as the heat exchanger 7 is installed in the outer cavity 6 after installation, which is not particularly limited here, and those skilled in the art can make specific choices according to actual conditions.

[0042] In one or more specific embodiments of the present invention, the cold mass is water.

[0043] In one or more specific embodiments of the present invention, the diameter of the liquid outlet holes 18 is 2 mm, and the opening rate is 60%.

[0044] In one or more specific embodiments of the present invention, in order to obtain a better rust removal effect, the aperture of the liquid outlet hole 18 located in the workpiece area to be processed is larger than the aperture of the liquid outlet hole 18 located outside the workpiece area to be processed. At this time, the aperture of the liquid outlet hole 18 located in the workpiece area to be processed is greater than 2 mm, and the aperture of the liquid outlet hole 18 outside the workpiece area to be processed is less than 2 mm.

[0045] In one or more specific embodiments of the present invention,

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A valve rust removal groove, comprising a groove bottom (1), a groove wall (2) and a groove cover (3), wherein the groove bottom (1), the groove wall (2) and the groove cover (3) form an inner cavity (4), characterized in that: The groove wall (2) is coated with a coating body (5), an outer cavity (6) is formed between the inner wall of the coating body (5) and the outer wall of the groove wall (2), and a heat exchanger (7) is installed in the outer cavity (6).

2. The valve rust removal tank according to claim 1, characterized in that: An overflow pipe (10) is provided on the groove wall (2) above the covering body (5); the groove bottom (1) comprises a bottom layer (11) and an upper layer (12); the edge of the bottom layer (11) is connected to the bottom surface of the groove wall (2); the upper layer (12) is connected to the groove wall (2); the groove bottom (1) also comprises a partition (13); the partition (13) is arranged adjacent to the groove wall (2); the upper end of the groove wall (2) is connected to the upper layer (12); the lower end is connected to the bottom layer (11); the partition (13) and the upper layer (12) and the bottom layer (11) enclose a liquid cavity (14); the bottom layer (11) is provided with a liquid inlet hole (13); 5), a liquid inlet hole (15) is located below the gap between the partition (13) and the groove wall (2), the liquid inlet hole (15) and the gap between the partition (13) and the groove wall (2) form a liquid inlet channel (16), the partition (13) is provided with a liquid inlet channel (17), the liquid inlet channel (17) is respectively connected to the liquid inlet channel (16) and the liquid separation chamber (14), a plurality of liquid outlet holes (18) are equidistantly provided on the upper layer (12), the liquid outlet holes (18) are respectively connected to the liquid separation chamber (14) and the inner chamber (4), the liquid inlet hole (15) is connected to a liquid inlet pipe, and the liquid inlet pipe is connected to a circulation pump.

3. The valve rust removal tank according to claim 2, characterized in that: The aperture of the liquid outlet hole (18) is 1-3 mm, and the opening rate is 40-70%.

4. The valve derusting tank according to claim 2, characterized in that: Among the liquid outlet holes (18), the diameter of the liquid outlet holes (18) located in the area of ​​the workpiece to be processed is larger than the diameter of the liquid outlet holes (18) located outside the area of ​​the workpiece to be processed.

5. The valve rust removal tank according to any one of claims 1 to 4, characterized in that: The heat exchanger (7) is a coil heat exchanger.

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