A submerged combustion evaporator and a connection device for a sediment collection tank

Abstract

The utility model provides a kind of submerged combustion evaporator and the connecting device of sediment collection tank, belong to pipeline connection technical field, solve the problem that the heat resistance of flange type rubber tube is poor, the low pressure capacity and the insufficient corrosion resistance in prior art.It includes rubber cylinder, the both ends of the rubber cylinder are fixedly connected with connecting flange, the inner wall of the rubber cylinder is fixedly connected with protective film, the outside of rubber cylinder is intervally equipped with metal bellows, the both ends of metal bellows are fixedly connected with connecting flange.Set protective film on the inner wall of rubber cylinder to protect rubber cylinder from corrosion and isolate certain heat, extend the service life of rubber cylinder, improve the heat resistance and corrosion resistance of connecting device;The metal bellows set can improve the pressure resistance of connecting device, and can maintain the temporary operation of equipment after the rupture of rubber cylinder, avoid the leakage of medium, ensure the use safety of equipment.

Description

Technical Field

[0001] This utility model belongs to the field of pipeline connection technology, specifically to a connection device between an immersion combustion evaporator and a sludge collection tank. Background Technology

[0002] Submerged combustion evaporator (SCE) is a direct contact evaporator that achieves efficient heat transfer through direct contact between high-temperature flue gas and liquid. It has advantages such as no fixed heat transfer surface, high thermal efficiency, and simple structure, and is suitable for treating solutions that are prone to crystallization, scaling, or corrosion.

[0003] In waste treatment, SCE (Submerged Combustion Evaporation) technology is used for the full-scale end-of-pipe treatment of DTRO (Disc Tube Reverse Osmosis) concentrate from landfill leachate. The system mainly includes a submerged combustion evaporator, a sludge collection tank, a dewatering machine, and a condenser. During the treatment of the concentrate, a solid-liquid mixture accumulates at the bottom of the submerged combustion evaporator. This sludge is discharged into the sludge collection tank to achieve solid-liquid separation, preventing solid particles from entering subsequent treatment processes. Currently, the traditional connection between the submerged combustion evaporator and the sludge collection tank is a flanged rubber hose connection to compensate for thermal expansion and contraction of the pipeline, absorb vibration, and accommodate installation errors. However, this method has the following limitations:

[0004] 1. Poor heat resistance: The temperature of the medium transported in the pipeline is about 90℃. The rubber material is prone to aging and hardening at high temperatures, which can lead to cracking.

[0005] 2. Low pressure resistance: The evaporation system operates at high pressure, and the rubber is prone to deformation or even bursting under high pressure conditions, posing a safety hazard.

[0006] 3. Insufficient corrosion resistance: The medium transported in the pipeline has a high salt content, which makes the rubber susceptible to corrosion.

[0007] Therefore, it is necessary to design a connection device between the submerged combustion evaporator and the sludge collection tank to improve its heat resistance, pressure resistance, corrosion resistance, etc., and extend its service life. Utility Model Content

[0008] To address the aforementioned problems, the purpose of this utility model is to provide a connection device between an immersion combustion evaporator and a sludge collection tank. A protective film is installed on the inner wall of the rubber cylinder to protect it from corrosion and insulate it from heat, thereby extending the service life of the rubber cylinder and improving the heat resistance and corrosion resistance of the connection device. The metal corrugated pipe can improve the pressure resistance of the connection device and can maintain the temporary operation of the equipment after the rubber cylinder ruptures, preventing media leakage and ensuring the safe use of the equipment.

[0009] The technical solution adopted in this utility model is as follows:

[0010] A connection device for a submerged combustion evaporator and a sludge collection tank includes a rubber cylinder, with connecting flanges fixedly connected to both ends of the rubber cylinder, a protective film fixedly connected to the inner wall of the rubber cylinder, and metal corrugated pipes spaced out on the outer side of the rubber cylinder, with both ends of the metal corrugated pipes fixedly connected to the connecting flanges.

[0011] Preferably, annular plates are fixedly fitted at both ends of the metal corrugated pipe, and through holes are opened on the annular plates. A connecting rod is movably installed in the through holes, and nuts are threaded to both ends of the connecting rod, with the two annular plates located between the two nuts.

[0012] Preferably, the diameter of the through hole is larger than the outer diameter of the nut, and the nut is fixedly connected with a baffle.

[0013] Preferably, two spaced-apart blocking members are fixedly connected to the connecting rod, and the two blocking members are located between two annular plates.

[0014] Preferably, the connecting flange is provided with mounting holes, and the vertical projection position of the mounting holes is located outside the vertical projection position of the annular plate.

[0015] Preferably, a pressure sensor for detecting the air pressure inside the metal bellows is provided at the upper or lower end of the metal bellows.

[0016] Preferably, a metal spiral wound gasket is provided on the end face of the connecting flange away from the metal bellows.

[0017] Preferably, the protective film is a polytetrafluoroethylene film.

[0018] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0019] A protective film is installed on the inner wall of the rubber cylinder to protect it from corrosion and insulate it from heat, thus extending its service life and improving the heat and corrosion resistance of the connecting device. The metal bellows can improve the pressure resistance of the connecting device and can maintain the temporary operation of the equipment after the rubber cylinder ruptures, preventing media leakage and ensuring the safe use of the equipment. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the main structure provided for an embodiment of the present utility model;

[0022] Figure 2 This is a cross-sectional structural diagram provided for an embodiment of the present utility model.

[0023] Reference numerals: 1-Connecting flange; 2-Metal bellows; 3-Annular plate; 4-Connecting rod; 5-Nut; 6-Blocking component; 7-Pressure sensor; 8-Baffle plate; 9-Rubber cylinder; 10-Protective film; 11-Mounting hole; 12-Metal spiral wound gasket; 13-Through hole. Detailed Implementation

[0024] 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 embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0026] In the description of this utility model, it should be noted that if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" appear to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0027] The following is combined Figure 1 and Figure 2 This utility model will be described in detail.

[0028] Example

[0029] A connection device for a submerged combustion evaporator and a sludge collection tank includes a rubber cylinder 9, with connecting flanges 1 fixedly connected to both ends of the rubber cylinder 9, a protective film 10 fixedly connected to the inner wall of the rubber cylinder 9, and metal corrugated pipes 2 spaced out on the outer side of the rubber cylinder 9, with both ends of the metal corrugated pipes 2 fixedly connected to the connecting flanges 1.

[0030] The rubber cylinder 9 is connected to the submerged combustion evaporator and the sludge collection tank via the connecting flange 1. The submerged combustion evaporator is located above the rubber cylinder 9, and the sludge collection tank is located below the rubber cylinder 9. The slurry from the submerged combustion evaporator, along with high-pressure gas, passes through the rubber cylinder 9 into the sludge collection tank for treatment. The rubber cylinder 9 can compensate for the thermal expansion and contraction of the pipeline, absorb vibration, and adapt to installation errors through its own elastic deformation.

[0031] A protective film 10 is installed on the inner wall of the rubber cylinder 9 to protect it from corrosion and insulate it from heat, thus extending its service life and improving the heat and corrosion resistance of the connecting device. The metal bellows 2 improves the pressure resistance of the connecting device and can maintain temporary operation of the equipment after the rubber cylinder 9 ruptures, preventing media leakage and ensuring safe operation. The metal bellows 2 can deform with the rubber cylinder 9, thus supporting multi-directional compensation (axial, lateral, and angular) and reducing stress on the connecting device.

[0032] Annular plates 3 are fixedly fitted at both ends of the metal bellows 2. Through holes 13 are formed in the annular plates 3, and connecting rods 4 are movably installed within these holes 13. Nuts 5 are threaded to both ends of the connecting rods 4, and the two annular plates 3 are positioned between the two nuts 5. The nuts 5 at both ends of the connecting rods 4 can limit the axial tensile limit of the metal bellows 2, preventing the metal bellows 2 from losing its elastic deformation capacity due to excessive stretching under overpressure or seismic conditions.

[0033] The diameter of the through hole 13 is larger than the outer diameter of the nut 5, and the nut 5 is fixedly connected to the baffle 8. The connecting rod 4 can swing in the through hole 13, thereby accommodating the lateral and angular displacement of the metal bellows 2. The lateral displacement is the horizontal misalignment of the upper and lower ends of the metal bellows 2; the angular displacement is the relative rotation of the upper and lower ends of the metal bellows 2.

[0034] Two spaced-apart blocking elements 6 are fixedly connected to the connecting rod 4, and the two blocking elements 6 are located between the two annular plates 3. The two blocking elements 6 can limit the axial compression limit of the metal bellows 2, and prevent the metal bellows 2 from losing its elastic deformation ability due to excessive compression.

[0035] The connecting flange 1 is provided with a mounting hole 11, the vertical projection position of which is located outside the vertical projection position of the annular plate 3. The mounting hole 11 is used to insert a screw to fix the connecting flange 1; the mounting hole 11 avoids the annular plate 3, making it convenient for operators to use power tools to tighten and fix the screw.

[0036] A pressure sensor 7 is installed at the upper or lower end of the metal bellows 2 to detect the air pressure inside the metal bellows 2. The pressure sensor 7 can monitor the air pressure between the metal bellows 2 and the rubber cylinder 9. If the rubber cylinder 9 ruptures, high-pressure gas enters the space between the metal bellows 2 and the rubber cylinder 9, causing a sudden increase in air pressure. After the pressure sensor 7 detects that the air pressure has increased to a certain value, it will remind the operator to replace the connection device.

[0037] A spiral wound gasket 12 is provided on the end face of the connecting flange 1 away from the metal bellows 2. The spiral wound gasket 12 is annular and slightly protrudes from the end face of the connecting flange 1. During use, the spiral wound gasket 12 is squeezed and deformed, thereby improving the connection sealing performance of the connecting flange 1.

[0038] The protective film 10 is a polytetrafluoroethylene (PTFE) film. PTFE films have good high-temperature resistance and corrosion resistance.

[0039] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A connection device between a submerged combustion evaporator and a sludge collection tank, comprising a rubber cylinder (9), wherein both ends of the rubber cylinder (9) are fixedly connected to connecting flanges (1), characterized in that, The inner wall of the rubber cylinder (9) is fixedly connected with a protective film (10), and the outer side of the rubber cylinder (9) is fitted with a metal bellows (2) at intervals. The two ends of the metal bellows (2) are fixedly connected to the connecting flange (1).

2. The connection device between a submerged combustion evaporator and a sludge collection tank according to claim 1, characterized in that, The two ends of the metal corrugated pipe (2) are fixedly fitted with annular plates (3), and the annular plates (3) are provided with through holes (13). A connecting rod (4) is movably arranged in the through holes (13). The two ends of the connecting rod (4) are threadedly connected with nuts (5), and the two annular plates (3) are located between the two nuts (5).

3. The connection device between a submerged combustion evaporator and a sludge collection tank according to claim 2, characterized in that, The diameter of the through hole (13) is larger than the outer diameter of the nut (5), and the nut (5) is fixedly connected to a baffle (8).

4. The connection device between a submerged combustion evaporator and a sludge collection tank according to claim 2, characterized in that, Two spaced blocking members (6) are fixedly connected to the connecting rod (4), and the two blocking members (6) are located between the two annular plates (3).

5. The connection device between a submerged combustion evaporator and a sludge collection tank according to claim 2, characterized in that, The connecting flange (1) is provided with a mounting hole (11), and the vertical projection position of the mounting hole (11) is located outside the vertical projection position of the annular plate (3).

6. The connection device between a submerged combustion evaporator and a sludge collection tank according to claim 1, characterized in that, The upper or lower end of the metal bellows (2) is provided with a pressure sensor (7) for detecting the air pressure inside the metal bellows (2).

7. The connection device between a submerged combustion evaporator and a sludge collection tank according to claim 1, characterized in that, A metal spiral wound gasket (12) is provided on the end face of the connecting flange (1) away from the metal bellows (2).

8. The connection device between a submerged combustion evaporator and a sludge collection tank according to claim 1, characterized in that, The protective film (10) is a polytetrafluoroethylene film.

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