Corrosion-resistant manifold assembly
By introducing flushing and collection structures into the manifold assembly, combined with corrosion-resistant materials, the cleaning challenges of vertical pipes and tees are solved, improving corrosion resistance and extending the service life of the equipment.
Patent Information
- Application Number
- CN202422239665.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-12
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-09-12
AI Technical Summary
In existing manifold assemblies, dirt and corrosion products easily accumulate at vertical pipes and tees, leading to decreased corrosion resistance and difficulty in effective cleaning, which affects the lifespan of the equipment.
A structure including a vertical pipe, upper and lower tee connecting pipes, a horizontal pipe, a flushing pipe, a sewage discharge component, and an impurity collection box is designed. It cleans and collects dirt and corrosion products through flushing fluid. The structure adopts a combination of corrosion-resistant alloy inner pipe and high-strength steel outer pipe with epoxy resin coating to enhance corrosion resistance.
It effectively removes solid particles, sediments, and microorganisms, improves the corrosion resistance of manifold components, prevents blockages and leaks, and extends equipment life.
Smart Images

Figure CN223537225U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of manifold components, and more specifically, to a corrosion-resistant manifold component. Background Technology
[0002] Manifold assemblies are crucial equipment combinations in industries such as oil and gas. They typically consist of pipes, valves, connectors, and instruments. The pipes are generally made of high-strength steel, capable of withstanding high pressure and harsh working environments, and are responsible for transporting fluid media.
[0003] In manifold assemblies, long vertical pipes and tees are prone to scale and corrosion products. This is mainly because the fluid medium being transported may contain impurities such as solid particles, precipitates, and microorganisms. These impurities accumulate on the inner walls of the pipes and inside valves over time, forming scale. Simultaneously, chemical reactions may occur between the fluid medium and the pipe materials, producing corrosion products. Furthermore, temperature and pressure changes during operation can cause substances to precipitate and deposit, or accelerate corrosion reactions, leading to even more corrosion products. These scale and corrosion products pose numerous health risks to the manifold assembly, ultimately reducing its corrosion resistance and making it more susceptible to damage.
[0004] However, existing manifold assemblies are typically composed of multiple pipes, valves, connectors, etc., with complex structures and many bends, branches, and narrow sections. At the tee connectors, the water flow pressure is restricted (low water flow pressure makes it difficult to flush away deposits), making it difficult to clean the vertical pipes and tee connectors in the middle of the manifold assembly.
[0005] Therefore, in order to solve the above-mentioned technical problems, this application proposes a corrosion-resistant manifold assembly. Utility Model Content
[0006] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a corrosion-resistant manifold assembly.
[0007] To achieve the above objectives, this utility model provides the following technical solution: a corrosion-resistant manifold assembly, comprising a vertical pipe and a horizontal pipe vertically connected to the top and bottom of the vertical pipe via two upper and lower tee connectors. The top of the upper tee connector is interconnected with a flushing pipe via valve A, and the bottom of the lower tee connector is interconnected with a drain assembly. In use, flushing fluid is added from the top of the vertical pipe through the flushing pipe, and the flushing fluid sequentially cleans the upper and lower tee connectors and the interior of the vertical pipe, and is finally discharged from the drain assembly.
[0008] Preferably, the sewage discharge assembly includes an impurity collection box that is interconnected with the lower three-way connecting pipe, and the bottom of the impurity collection box is threadedly connected to a cover.
[0009] Preferably, a sealing ring A is bonded to the bottom of the impurity collection box around the perimeter of the cover connection, and a sealing ring B is bonded to the inner top wall of the cover, forming a double seal to prevent leakage at the cover connection.
[0010] Preferably, a valve B is installed between the horizontal pipe and the tee connecting pipe. When cleaning the horizontal pipe and the tee connecting pipe, the valve B can be used to seal the tee connecting pipe and the horizontal pipe in advance, thereby preventing the horizontal pipe from dispersing the water flow and affecting the water flow pressure of the rinsing liquid.
[0011] Preferably, the surface of the cover is fixedly connected with a handle that facilitates its rotation, making it easy for workers to rotate the cover.
[0012] Preferably, the impurity collection box is a frustum-shaped structure with decreasing diameter from top to bottom, which can help solid particles, precipitates, microorganisms and rinsing liquid that have reached the impurity collection box to flow out from the opening at the bottom of the impurity collection box.
[0013] Preferably, both the vertical pipe and the horizontal pipe are composed of an inner pipe and an outer pipe. The inner pipe is made of corrosion-resistant alloy material, and the outer pipe is made of high-strength steel. An epoxy resin anti-corrosion coating is filled between the inner pipe and the outer pipe, which can not only ensure the strength of the manifold assembly, but also effectively resist corrosion.
[0014] Compared with the prior art, the present invention has the following beneficial effects:
[0015] 1. This utility model opens valve A and introduces flushing fluid (or water flushing) into the vertical pipe through the flushing pipe. The flushing fluid sequentially cleans the inside of the tee connection pipe and the vertical pipe, and finally discharges from the drain assembly. This allows the external pipeline to clean the longer vertical pipe and tee pipe in the middle of the manifold assembly, thereby ensuring the water flow pressure of the flushing fluid and improving the cleaning effect on solid particles, sediments, microorganisms, etc., thereby further improving the corrosion resistance of the manifold assembly. This solves the problem in the background technology where the water flow pressure is limited at the tee connection, making it difficult to clean the vertical pipe and tee pipe in the middle of the manifold assembly.
[0016] 2. When cleaning the horizontal pipe and the tee connecting pipe, the present invention can seal the tee connecting pipe and the horizontal pipe in advance through valve B, thereby avoiding the horizontal pipe from dispersing the water flow and affecting the water flow pressure of the rinsing liquid;
[0017] 3. This utility model can collect large solid particles and sediments that are heavy and bulky and difficult to flow in the manifold during daily use of the manifold assembly through the impurity collection box, and discharge them by opening the cover, thereby avoiding blockage.
[0018] 4. When the cover is installed, the sealing ring B on the cover is pressed against the bottom of the impurity collection box connection port to form a first layer of seal. At this time, the bottom of the cover is also pressed against the sealing ring B of the impurity collection box to form a second layer of seal, thus forming a double seal, improving the sealing effect and preventing leakage. Attached Figure Description
[0019] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:
[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0021] Figure 2 This utility model Figure 1 Another structural diagram from a different angle;
[0022] Figure 3 A schematic diagram of the specific structure of the self-locking component using the second embodiment of this utility model (back facing forward);
[0023] Figure 4 This is a schematic diagram of the internal structure of the hollow shell in this utility model.
[0024] In the diagram: 1. Vertical pipe; 2. T-junction pipe; 3. Horizontal pipe;
[0025] 4. Sewage discharge assembly; 401. Impurity collection box; 402. Cover; 403. Sealing ring A; 404. Sealing ring B;
[0026] 5. Valve A; 6. Valve B; 7. Handle; 8. Flushing pipe. Detailed Implementation
[0027] like Figure 1-4 As shown, this utility model provides a corrosion-resistant manifold assembly, including a vertical pipe 1 and a horizontal pipe 3 that is vertically connected to the top and bottom of the vertical pipe 1 via two upper and lower tee connectors 2. The top of the upper tee connector 2 is interconnected with a flushing pipe 8 via a valve A5, and the bottom of the lower tee connector 2 is interconnected with a sewage discharge assembly 4.
[0028] When cleaning is required for the two tee pipes at the top and bottom of the riser 1, stop the normal fluid supply within the manifold assembly, then open valve A5 and introduce flushing fluid (or flush directly with water) into the riser 1 through flushing pipe 8. The flushing fluid sequentially cleans the interior of the tee connecting pipe 2 and the riser 1, and finally discharges from the drain assembly 4. This allows for cleaning of the longer riser 1 and tee pipes in the middle of the manifold assembly through external piping, ensuring the water flow pressure of the flushing fluid and improving the cleaning effect on solid particles, sediments, microorganisms, etc., thereby further improving the corrosion resistance of the manifold assembly.
[0029] Furthermore, a valve B6 is installed between the horizontal pipe 3 and the tee connecting pipe 2. This allows for pre-cleaning of the area between the tee connecting pipe 2 and the horizontal pipe 3 via valve B6, preventing the horizontal pipe 3 from dispersing the water flow and affecting the flushing fluid pressure. Both the vertical pipe 1 and the horizontal pipe 3 consist of inner and outer pipes. The inner pipe is made of corrosion-resistant alloy materials, such as stainless steel or nickel-based alloys, offering excellent corrosion resistance. The outer pipe is made of high-strength steel, primarily serving to protect the inner pipe and withstand external pressure. An epoxy resin anti-corrosion coating is filled between the inner and outer pipes, ensuring the integrity of the manifold assembly. It possesses both high strength and effective corrosion resistance (epoxy resin has strong adhesion, allowing it to adhere tightly to the metal surface of the manifold. This not only prevents peeling between the coating and the metal substrate but also enhances the overall strength of the manifold to a certain extent. For example, when the manifold is subjected to external impact or vibration, the epoxy resin coating can share the stress with the metal, reducing local deformation and damage to the metal surface. The epoxy resin coating can form a continuous and dense protective film on the inner pipe surface, effectively blocking the contact between corrosive media and the metal substrate. This prevents corrosion reactions and greatly reduces the possibility of manifold components being corroded).
[0030] The sewage discharge assembly 4 includes a sludge collection box 401 interconnected with the lower three-way connecting pipe 2. A cover 402 is threadedly connected to the bottom of the sludge collection box 401. This allows for the collection of large solid particles and sediments that are heavy and bulky and difficult to flow within the manifold assembly during daily use. These particles are then discharged by opening the cover 402, preventing blockages. Simultaneously, the cover 402 allows flushing fluid to flow out. The sludge collection box 401 is a frustum-shaped cone with decreasing diameter from top to bottom. This design facilitates the flow of solid particles, sediments, microorganisms, and flushing fluid from the bottom opening of the sludge collection box 401. The bottom of the sludge collection box 401 is located around the connection point of the cover 402. A sealing ring A403 is attached, and a sealing ring B404 is adhered to the inner top wall of the cover 402. A handle 7 is fixedly connected to the surface of the cover 402 to facilitate its rotation. That is, when installing the cover 402, the thread on the cover 402 is pressed against the thread on the connection port of the impurity collection box 401, and the handle 7 is turned clockwise to install it at the bottom of the impurity collection box 401. After installation, the sealing ring B404 on the cover 402 is pressed tightly against the bottom of the connection port of the impurity collection box 401 to form a first layer of seal. At this time, the bottom of the cover 402 is also pressed tightly against the sealing ring B404 of the impurity collection box 401 to form a second layer of seal, thus forming a double seal to improve the sealing effect and prevent leakage (the leaked liquid may fall into other parts of the manifold assembly and cause contamination; the attached figure only shows a part of the manifold assembly).
[0031] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description. However, any modifications, alterations, or equivalent variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are considered equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.
Claims
1. A corrosion-resistant manifold assembly, characterized in that: It includes a vertical pipe (1) and a horizontal pipe (3) that is vertically connected to the top and bottom of the vertical pipe (1) through two upper and lower three-way connecting pipes (2). The top of the upper three-way connecting pipe (2) is connected to a flushing pipe (8) through a valve A (5), and the bottom of the lower three-way connecting pipe (2) is connected to a sewage discharge assembly (4). When in use, flushing liquid is added from the top of the vertical pipe (1) through the flushing pipe (8). The flushing liquid sequentially cleans the inside of the upper and lower three-way connecting pipes (2) and the vertical pipe (1) and is finally discharged from the sewage discharge assembly (4).
2. The corrosion-resistant manifold assembly according to claim 1, characterized in that: The sewage discharge assembly (4) includes an impurity collection box (401) that is interconnected with the lower three-way connecting pipe (2), and the bottom of the impurity collection box (401) is threadedly connected to a cover (402).
3. A corrosion-resistant manifold assembly according to claim 2, characterized in that: A sealing ring A (403) is bonded to the bottom of the impurity collection box (401) around the connection of the cover (402), and a sealing ring B (404) is bonded to the inner top wall of the cover (402).
4. A corrosion-resistant manifold assembly according to claim 1, characterized in that: A valve B (6) is installed between the horizontal pipe (3) and the three-way connecting pipe (2).
5. A corrosion-resistant manifold assembly according to claim 2, characterized in that: The surface of the cover (402) is fixedly connected with a handle (7) for easy rotation.
6. A corrosion-resistant manifold assembly according to claim 2, characterized in that: The impurity collection box (401) is a frustum-shaped structure with diameters decreasing sequentially from top to bottom.
7. A corrosion-resistant manifold assembly according to claim 1, characterized in that: Both the vertical pipe (1) and the horizontal pipe (3) are composed of an inner pipe and an outer pipe. The inner pipe is made of corrosion-resistant alloy material, and the outer pipe is made of high-strength steel. An epoxy resin anti-corrosion coating is filled between the inner pipe and the outer pipe.