A simple in-tank heterogeneous medium mixing device
By designing a dissimilar media mixing device inside the tank, the corrosion inhibitor and test water are uniformly mixed during the dynamic process, which solves the problem of rust on carbon steel materials after water pressure testing and ensures cleanliness.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HARBIN TURBINE
- Filing Date
- 2025-07-18
- Publication Date
- 2026-07-03
AI Technical Summary
Under the existing conditions and production cycle requirements, rust appeared on the carbon steel material after the water pressure test, making it impossible to clean some areas manually and affecting the cleanliness.
A simple in-tank heterogeneous media mixing device was designed. By dividing the corrosion inhibitor silo into two chambers and using the left and right water inlet pipes to generate a circulation effect, the corrosion inhibitor and the test water are fully mixed in a dynamic process, ensuring uniform distribution.
The corrosion inhibitor and the test water were thoroughly mixed, which prevented the oxidation of carbon steel materials, prevented rust formation, and met the cleanliness requirements.
Smart Images
Figure CN224442688U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of media mixing, specifically to a simple in-tank mixing device for different media. Background Technology
[0002] The shell of the shell-and-tube heat exchanger is made of carbon steel. The internal shell must be primarily made of stainless steel with a small amount of carbon steel tubes to ensure cleanliness. However, due to the limited internal space, some areas are difficult to clean manually. To reduce the impact of rust on cleanliness after the hydrostatic test, a corrosion inhibitor needs to be added to the test water for rust prevention. Therefore, it is crucial to ensure the corrosion inhibitor is evenly distributed in the test water to achieve a good rust-preventing effect. The previous method of directly pouring the corrosion inhibitor into the water and then allowing it to diffuse through the flow of the test water resulted in uneven distribution, leading to severe localized rust and failing to meet the cleanliness control requirements of the new product.
[0003] In summary, under the existing conditions and production cycle requirements, rust appeared on the carbon steel material after the hydrostatic test, causing some areas to be inaccessible for manual cleaning. Utility Model Content
[0004] The purpose of this utility model patent is to solve the problem that carbon steel materials develop rust after water pressure testing under existing conditions and production cycle requirements, resulting in local areas that cannot be cleaned manually. This utility model proposes a simple device for mixing different media inside a tank.
[0005] The purpose of this utility model is achieved as follows: a simple in-tank mixing device for different media, which includes a shell, a corrosion inhibitor hopper, a left water inlet pipe, a right water inlet pipe, a pressure cap B, a bottom plate, two pressure caps A, multiple support blocks A and multiple support blocks B;
[0006] The top of the shell is open, and the bottom inner wall of the shell is fixedly connected to the bottom plate for sealing. The left and right water inlet pipes are arrayed and fixed on the side wall of the shell in a circumferential direction and they are all connected to the internal space of the shell.
[0007] At least two support blocks B are longitudinally arranged and fixed on at least one side wall at the front and rear ends of the housing. A control lever B is connected to the top side of the pressure cover B. The control lever B is rotatably connected to the longitudinally arranged support blocks B. A mixing medium outlet is provided at the bottom of the pressure cover B on the housing. Rotating the control lever B is used to control the opening and closing of the pressure cover B above the mixing medium outlet.
[0008] The longitudinal narrow cross section of the corrosion inhibitor silo is U-shaped. The left and right ends of the corrosion inhibitor silo are fixedly connected to the upper part of the inner wall of the shell. The left and right side walls of the corrosion inhibitor silo are coplanar with the inner wall of the shell. The corrosion inhibitor silo divides the space inside the shell. The space inside the corrosion inhibitor silo is called cavity A, and the remaining space is called cavity B.
[0009] At least two support blocks A are longitudinally arranged and fixed on the left and right side walls of the corrosion inhibitor hopper. A control lever A is connected to the top side of the pressure cap A. Each control lever A is rotatably connected to multiple longitudinally arranged support blocks A. The bottom of the pressure cap A is provided with a discharge port located on the corrosion inhibitor hopper. Rotating the control lever A is used to control the opening and closing of the pressure cap A above the discharge port.
[0010] Furthermore, an upper flange is fixedly connected to the top side wall of the housing, and a lower flange is fixedly connected to the bottom side wall of the housing.
[0011] Furthermore, the corrosion inhibitor silo includes the bottom plate of cavity A, the area in front of the vertical plate of cavity A, and the area behind the vertical plate of cavity A;
[0012] The bottom plate of cavity A, the left ends of the front and rear sections of the vertical plate of cavity A, and the right ends of the bottom plate of cavity A, the front and rear sections of the vertical plate of cavity A are all fixedly connected to the inner wall of the shell. The front and rear sections of the vertical plate of cavity A are symmetrically fixed to the bottom plate of cavity A.
[0013] Furthermore, the bottom plate of cavity A, the front plate of cavity A, and the rear plate of cavity A are all welded to the inner wall of the shell.
[0014] Furthermore, the centerlines of both the left and right water inlet pipes are tangent to the inner wall of the casing.
[0015] Furthermore, both the left and right inlet pipes are angled downwards from the water inlet direction to the water outlet direction.
[0016] Furthermore, both joystick B and joystick A are Z-shaped joysticks.
[0017] Furthermore, the control lever B and the pressure cap B are welded together.
[0018] Furthermore, the control lever A and the pressure cap A are welded together.
[0019] Furthermore, the space of cavity A is smaller than the space of cavity B.
[0020] Beneficial effects:
[0021] This solution uses a simple mixing device to effectively mix the corrosion inhibitor with the test water. The distribution of the corrosion inhibitor in the test water after mixing is significantly improved compared to the previous conventional pouring method. This ensures that the corrosion inhibitor is fully mixed with the test water and evenly distributed in the water body, effectively preventing the oxidation of iron-based materials and avoiding the formation of rust. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of a simple in-tank mixing device for different media according to this utility model;
[0023] Figure 2 This is a utility model Figure 1AA view;
[0024] Figure 3 This is a utility model Figure 1 BB view. Detailed Implementation
[0025] Specific implementation method 1: A simple in-tank heterogeneous media mixing device, which includes a shell 2, a corrosion inhibitor silo, a left water inlet pipe 3, a right water inlet pipe 8, a pressure cap B11, a bottom plate 13, two pressure caps A9, multiple support blocks A10 and multiple support blocks B12;
[0026] The top of the shell 2 is open, and the bottom inner wall of the shell 2 is fixedly connected to the bottom plate 13 for sealing. The left water inlet pipe 3 and the right water inlet pipe 8 are arrayed and fixed on the side wall of the shell 2 along the circumferential direction and they are all connected to the internal space of the shell 2.
[0027] At least two support blocks B12 are longitudinally arranged and fixed on at least one side wall at the front and rear ends of the housing 2. A control lever B16 is connected to the top side of the pressure cover B11. The control lever B16 is rotatably connected to the longitudinally arranged support blocks B12. A mixing medium outlet 17 is provided at the bottom of the pressure cover B11 on the housing 2. Rotating the control lever B16 is used to control the opening and closing of the pressure cover B11 above the mixing medium outlet 17.
[0028] The longitudinal narrow cross section of the corrosion inhibitor silo is U-shaped. The left and right ends of the corrosion inhibitor silo are fixedly connected to the upper part of the inner wall of the shell 2. The left and right side walls of the corrosion inhibitor silo are coplanar with the inner wall of the shell 2. The corrosion inhibitor silo divides the space inside the shell 2. The space inside the corrosion inhibitor silo is called cavity A, and the remaining space is called cavity B.
[0029] At least two support blocks A10 are longitudinally arranged and fixed on the left and right side walls of the corrosion inhibitor hopper. A control lever A14 is connected to the top side of the pressure cap A9. Each control lever A14 is rotatably connected to multiple longitudinally arranged support blocks A10. The bottom of the pressure cap A9 is provided with a discharge port 15 located on the corrosion inhibitor hopper. Rotating the control lever A14 is used to control the opening and closing of the pressure cap A9 above the discharge port 15.
[0030] In this embodiment: the corrosion inhibitor hopper divides the internal space of the shell, with the interior of the corrosion inhibitor hopper serving as cavity A and the remaining space as cavity B; the left and right water inlet pipes are arrayed and fixed on the side wall of the shell along the circumferential direction and are both connected to the internal space of the shell; rotating the control lever B controls the opening and closing of the pressure cap B above the outlet of the mixed medium; rotating the control lever A controls the opening and closing of the pressure cap A above the outlet, opening the pressure cap A, and putting the corrosion inhibitor concentrate into the test water, which mixes as the test water rotates and flows in the tank; then opening the pressure cap B again and putting the test water mixed with the corrosion inhibitor into the product.
[0031] Specific implementation method 2: A simple in-tank heterogeneous media mixing device, wherein an upper flange 1 is fixedly connected to the top side wall of the shell 2, and a lower flange 4 is fixedly connected to the bottom side wall of the shell 2.
[0032] Other implementation methods are the same as those in Specific Implementation Method 1.
[0033] Specific implementation method three: A simple in-tank heterogeneous media mixing device, wherein the corrosion inhibitor silo includes a bottom plate 5 of cavity A, a front plate 6 of cavity A, and a rear plate 7 of cavity A;
[0034] The left ends of the bottom plate 5 of cavity A, the front plate 6 of cavity A, and the rear plate 7 of cavity A, as well as the right ends of the bottom plate 5 of cavity A, the front plate 6 of cavity A, and the rear plate 7 of cavity A, are all fixedly connected to the inner wall of the shell 2. The front plate 6 of cavity A and the rear plate 7 of cavity A are symmetrically fixed on the bottom plate 5 of cavity A.
[0035] In this embodiment: the discharge port is located on the bottom plate of cavity A.
[0036] Other implementation methods are the same as those in Specific Implementation Method 1.
[0037] Specific implementation method four: A simple in-tank heterogeneous media mixing device, wherein the bottom plate 5 of cavity A, the front plate 6 of cavity A and the rear plate 7 of cavity A are all welded to the inner wall of the shell 2.
[0038] Other implementation methods are the same as those in Specific Implementation Method 1.
[0039] Specific implementation method five: A simple in-tank heterogeneous media mixing device, wherein the center lines of the left water inlet pipe 3 and the right water inlet pipe 8 are both tangent to the inner wall of the shell 2.
[0040] In this embodiment, the water flow impacts the tank wall tangentially and generates a circulation effect inside the tank. The water flow can rotate in the circumferential direction inside the tank due to its tangential entry.
[0041] Other implementation methods are the same as those in Specific Implementation Method 1.
[0042] Specific Implementation Method Six: A simple in-tank heterogeneous media mixing device, wherein the left water inlet pipe 3 and the right water inlet pipe 8 are both arranged obliquely downward from the water inlet direction to the water outlet direction.
[0043] Other implementation methods are the same as those in Specific Implementation Method 1.
[0044] Specific implementation method seven: A simple in-tank mixing device for different media, wherein both control lever B16 and control lever A14 are Z-shaped levers.
[0045] Other implementation methods are the same as those in Specific Implementation Method 1.
[0046] Specific implementation method eight: A simple in-tank mixing device for different media, wherein the control lever B16 and the pressure cap B11 are welded together.
[0047] Other implementation methods are the same as those in Specific Implementation Method 1.
[0048] Specific implementation method nine: A simple in-tank mixing device for different media, wherein the control lever A14 and the pressure cap A9 are welded together.
[0049] Other implementation methods are the same as those in Specific Implementation Method 1.
[0050] Specific Implementation Method 10: A simple in-tank mixing device for different media, wherein the space of cavity A is smaller than the space of cavity B.
[0051] Other implementation methods are the same as those in Specific Implementation Method 1.
[0052] Working principle:
[0053] When two aqueous media mix statically, the mixing is very slow and uneven. However, if one aqueous medium is in motion, and the other medium is poured in and diffuses during the movement, the mixture becomes homogeneous. Based on this principle, a simple in-tank mixing device for dissimilar media was developed. The specific operation process is as follows:
[0054] The tank is divided into two chambers. One chamber is located at the top and is used to hold the original corrosion inhibitor solution, which is chamber A in the diagram. The other chamber holds the test water, which is chamber B in the diagram. Two water inlet pipes are arranged in chamber B. The center line of the water inlet pipes is required to be tangent to the inner wall of the shell.
[0055] When water is injected, the water flow impacts the tank wall tangentially and generates a circulation effect inside the tank. The water flow can rotate in the circumferential direction inside the tank due to its tangential entry.
[0056] Open the pressure cap A and put the corrosion inhibitor stock solution into the test water. It will mix as the test water rotates and flows in the tank.
[0057] Next, open the pressure cap B and put the test water containing the corrosion inhibitor into the product. The test water, due to the uniformly mixed corrosion inhibitor, will prevent the iron-based material from oxidizing during the test, thereby avoiding the formation of rust.
Claims
1. A simple in-can heterogeneous media mixing device, characterized by: It includes a shell (2), a corrosion inhibitor hopper, a left water inlet pipe (3), a right water inlet pipe (8), a pressure cap B (11), a base plate (13), two pressure caps A (9), multiple support blocks A (10) and multiple support blocks B (12); The top of the shell (2) is open, and the bottom inner wall of the shell (2) is fixedly connected to the bottom plate (13) for sealing. The left water inlet pipe (3) and the right water inlet pipe (8) are fixed in an array along the circumferential direction on the side wall of the shell (2) and they are all connected to the internal space of the shell (2). At least two support blocks B (12) are longitudinally arranged and fixed on at least one side wall of the front and rear of the housing (2). A control lever B (16) is connected to the top side of the pressure cover B (11). The control lever B (16) is rotatably connected to the longitudinally arranged support blocks B (12). A mixing medium outlet (17) is provided at the bottom of the pressure cover B (11) on the housing (2). Rotating the control lever B (16) is used to control the opening and closing of the pressure cover B (11) above the mixing medium outlet (17). The longitudinal narrow section of the corrosion inhibitor silo is U-shaped. The left and right ends of the corrosion inhibitor silo are fixedly connected to the upper part of the inner wall of the shell (2). The left and right side walls of the corrosion inhibitor silo are coplanar with the inner wall of the shell (2). The corrosion inhibitor silo divides the space inside the shell (2). The space inside the corrosion inhibitor silo is called cavity A, and the remaining space is called cavity B. At least two support blocks A (10) are arranged and fixed longitudinally on the left and right side walls of the corrosion inhibitor silo. A control lever A (14) is connected to the top side of the pressure cap A (9). Each control lever A (14) is rotatably connected to multiple support blocks A (10) arranged longitudinally. A discharge port (15) is provided at the bottom of the pressure cap A (9) on the corrosion inhibitor silo. Rotating the control lever A (14) is used to control the opening and closing of the pressure cap A (9) above the discharge port (15).
2. The simple in-tank heterogeneous media mixing device of claim 1, wherein: The top side wall of the housing (2) is fixedly connected to an upper flange (1), and the bottom side wall of the housing (2) is fixedly connected to a lower flange (4).
3. The simple in-tank heterogeneous media mixing device of claim 1, wherein: The corrosion inhibitor silo includes the bottom plate of cavity A (5), the front plate of cavity A (6), and the rear plate of cavity A (7); The left ends of the bottom plate (5) of cavity A, the front (6) of cavity A, and the rear (7) of cavity A, as well as the right ends of the bottom plate (5), the front (6) of cavity A, and the rear (7) of cavity A, are all fixedly connected to the inner wall of the shell (2). The front (6) of cavity A and the rear (7) of cavity A are symmetrically fixed on the bottom plate (5) of cavity A.
4. The simple in-tank heterogeneous media mixing device of claim 1, wherein: The bottom plate (5), the front plate (6), and the rear plate (7) of cavity A are all welded to the inner wall of the shell (2).
5. The simple in-tank heterogeneous media mixing device of claim 1, wherein: The center lines of the left water inlet pipe (3) and the right water inlet pipe (8) are both tangent to the inner wall of the shell (2).
6. The simple in-tank heterogeneous media mixing device of claim 1, wherein: Both the left inlet pipe (3) and the right inlet pipe (8) are set obliquely downward from the water inlet direction to the water outlet direction.
7. The simple in-tank heterogeneous media mixing device of claim 1, wherein: Both joystick B (16) and joystick A (14) are Z-shaped levers.
8. The simple in-tank heterogeneous media mixing device of claim 1, wherein: The control lever B (16) and the pressure cap B (11) are welded together.
9. The simple in-tank heterogeneous media mixing device of claim 1, wherein: The control lever A (14) and the pressure cap A (9) are welded together.
10. A simple in-tank mixing device for dissimilar media according to claim 1, characterized in that: The space of cavity A is smaller than the space of cavity B.