A universal cooling pipe for distillation kettle mechanical seal and a corresponding cooling mechanism

Abstract

This invention provides a universal cooling pipe for a mechanical seal of a distillation vessel. The water outlet angle can be adjusted arbitrarily, thereby accurately and reliably cooling the friction surfaces of the mechanical seal mechanism. This ensures precise cooling of the mechanical seal structure. Furthermore, the pipe is made of corrosion-resistant material, does not easily form scale, ensures uniform heat conduction, and has a long maintenance cycle. It includes: a plastic cooling pipe with a length greater than half the circumference of the mechanical seal mechanism, and the plastic cooling pipe has universal shaping properties; the inlet end of the plastic cooling pipe is provided with a first external thread; an outlet nozzle; a connector including a sleeve structure, with the two ends of the sleeve structure recessed in the length direction to form a first internal thread and a second internal thread respectively; and a liquid inlet interface, including an inlet port and an outlet port.

Description

Technical Field

[0001] This invention relates to the technical field of dry low-temperature evaporation / crystallization equipment, specifically to a universal cooling pipe for a mechanical seal of a distillation vessel. The invention also provides a cooling mechanism using this universal cooling pipe. Background Technology

[0002] Low-temperature evaporation / crystallization equipment is widely used in the treatment of high-salt wastewater and industrial residues. It achieves drying and slag discharge through a distillation kettle. The distillation kettle is equipped with a stirring shaft, and a mechanical seal structure is installed at the end cover of the distillation kettle where the stirring shaft passes through. The mechanical seal structure is prone to heat generation under high-speed operation and high-temperature environment, and must be continuously cooled. However, the cooling of the existing mechanical seal structure is done by connecting the input end of a metal rigid tube to cooling water, and then spraying cooling water onto the mechanical seal structure through the output end of the metal rigid tube. In practice, the angle of the metal rigid tube used for cooling is fixed, which cannot be accurately aligned with the friction surface of the mechanical seal mechanism. As a result, the cooling water spray position cannot completely cover the friction surface, which easily leads to uneven cooling, local overheating, and premature aging of the mechanical seal structure. Moreover, the metal rigid tube itself is prone to corrosion and scaling, which leads to uneven heat conduction and frequent maintenance. Summary of the Invention

[0003] To address the aforementioned issues, this invention provides a universal cooling pipe for mechanical seals of distillation kettles. The water outlet angle can be adjusted arbitrarily, thereby accurately and reliably cooling the friction surfaces of the mechanical seal mechanism. This ensures precise cooling of the mechanical seal structure. Furthermore, the pipe is made of corrosion-resistant material, is not prone to scaling, ensures uniform heat conduction, and has a long maintenance cycle.

[0004] A universal cooling pipe for a mechanical seal of a distillation vessel, characterized in that it comprises: The plastic cooling tube has a tube length greater than half the circumference of the mechanical seal mechanism, and the plastic cooling tube has universal shaping performance. The liquid inlet end of the plastic cooling tube is provided with a first external thread. Liquid dispensing nozzle; A connector includes a sleeve structure, wherein the two ends of the sleeve structure are respectively recessed to form a first internal thread and a second internal thread in the length direction; And the liquid inlet interface, which includes a liquid inlet port and a liquid outlet port; The liquid inlet port has a second external thread on its outer periphery, and the second external thread of the liquid inlet port is threaded to the second internal thread. The liquid inlet end of the plastic cooling tube has a first external thread threaded to the first internal thread, and the liquid outlet end of the plastic cooling tube is integrated with a liquid outlet nozzle.

[0005] Its further features are: The plastic cooling pipe is made of engineering plastic material, which is resistant to acids and alkalis, non-conductive, non-deformable, and has a long service life. The plastic cooling tube is wound into a spiral straight rod for easy handling and installation; The liquid outlet nozzle includes a tapered transition cavity that narrows from back to front and a small-diameter liquid outlet, which ensures that the coolant has high-pressure injection performance and ensures sufficient and reliable cooling of the friction surfaces of the mechanical seal mechanism.

[0006] A cooling mechanism employing a universal cooling pipe includes a distillation vessel stirring shaft, which protrudes outward from a through hole in the end cap. A mechanical seal mechanism covers the periphery of the distillation vessel stirring shaft passing through the through hole. The protruding end of the distillation vessel stirring shaft passes through a bearing on a bearing seat. The mechanism is characterized by further including a universal cooling pipe, a pipe clamp, and a fixing plate. The fixing plate is fixed to the end cap or bearing seat. A pipe clamp is provided on the fixing plate, holding the outer circumference of the connector of the universal cooling pipe. The liquid outlet nozzle of the universal cooling pipe is arranged facing the friction surface of the mechanical seal mechanism after being wound around a plastic cooling pipe. The liquid inlet port of the universal cooling pipe is connected to a cooling water pipeline.

[0007] Its further features are: A temperature sensor is installed inside the sealing seat of the mechanical seal mechanism, and the temperature sensor monitors the operating temperature of the mechanical seal mechanism in real time. When the mechanical seal temperature exceeds the set threshold, the cooling water flow rate is automatically increased; when the temperature is normal, the flow rate is reduced to achieve energy saving and precise cooling.

[0008] With the present invention, the universal cooling pipe adopts a flexible and shapeable plastic cooling pipe. One end of the plastic cooling pipe is connected to the liquid inlet through a connector to receive cooling water. The liquid outlet nozzle at the other end of the plastic cooling pipe can be freely adjusted in angle to accurately align with the mechanical seal friction pair. Moreover, the plastic cooling pipe material is corrosion resistant and does not easily form scale, ensuring uniform heat conduction and a long subsequent maintenance cycle. Attached Figure Description

[0009] Figure 1 This is a perspective view of the universal cooling pipe of the present invention; Figure 2 This is a cross-sectional view of the universal cooling pipe of the present invention; Figure 3 A three-dimensional representation of a specific embodiment of the cooling mechanism of the present invention. Figure 1 ; Figure 4 A three-dimensional representation of a specific embodiment of the cooling mechanism of the present invention. Figure 2 ; The names corresponding to the serial numbers in the diagram are as follows: Plastic cooling pipe 10, first external thread 11, liquid outlet nozzle 20, conical transition cavity 21, small diameter liquid outlet 22, connector 30, sleeve structure 31, first internal thread 311, second internal thread 312, side protrusion limiting clamping stop 32, liquid inlet interface 40, liquid inlet port 41, liquid outlet port 42, second external thread 421, switch 43, distillation kettle stirring shaft 50, end cover 60, mechanical seal mechanism 70, bearing seat 80, bearing 81, pipe clamp 90, universal cooling pipe 100, fixing plate 110, bearing seat mounting bracket 120, cooling water buffer zone 121, water outlet hole 122, drain valve 130. Detailed Implementation

[0010] A universal cooling pipe for mechanical seals of distillation kettles, see Figures 1-2 It includes a plastic cooling pipe 10, a liquid outlet nozzle 20, a connector 30, and a liquid inlet 40; The plastic cooling pipe 10 has a pipe length greater than half the circumference of the mechanical seal mechanism 70, and the plastic cooling pipe 10 has universal shaping performance. The liquid inlet end of the plastic cooling pipe 10 is provided with a first external thread 11. The connector 30 includes a sleeve structure 31, with the two ends of the sleeve structure 31 in the length direction respectively forming a first internal thread 311 and a second internal thread 312. The liquid inlet interface 40 includes an inlet port 41 and an outlet port 42. The outlet port 42 of the liquid inlet interface 40 is provided with a second external thread 421 on its outer periphery. The second external thread 421 of the liquid outlet port 42 of the liquid inlet interface 40 is connected to the second internal thread 312. The first external thread 11 of the liquid inlet end of the plastic cooling tube 10 is connected to the first internal thread 311. The liquid outlet end of the plastic cooling tube 10 is integrated with a liquid outlet nozzle 20.

[0011] In practice, the plastic cooling pipe 10 is made of engineering plastic material, which is resistant to acids and alkalis, non-conductive, non-deformable, and has a long service life. The plastic cooling tube 10 is wound into a spiral straight rod for easy handling and installation; The liquid outlet nozzle 20 includes a tapered transition cavity 21 that narrows from back to front and a small-diameter liquid outlet 22, which ensures that the coolant has high-pressure injection performance and ensures sufficient and reliable cooling of the friction surfaces of the mechanical seal mechanism. The liquid inlet port 40 is also equipped with a switch 43, which is used to open or close the entire water circuit.

[0012] A cooling mechanism using universal cooling pipes, see Figures 1-3It includes a distillation vessel stirring shaft 50, which protrudes outward from the through hole of the end cover 60. A mechanical seal mechanism 70 covers the periphery of the distillation vessel stirring shaft 50 through the through hole. The protruding end of the distillation vessel stirring shaft 50 passes through the bearing 81 on the bearing seat 80. It also includes a universal cooling pipe 100, a pipe clamp 90, and a fixing plate 110. The fixing plate 110 is fixed to the end cover 60 or the bearing seat 80. The fixing plate 110 is provided with a pipe clamp 90, which clamps the outer periphery of the sleeve structure 31 of the connector 30 of the universal cooling pipe 100. The liquid outlet nozzle 20 of the universal cooling pipe 100 is arranged towards the friction surface of the mechanical seal mechanism 70 after being wrapped around the plastic cooling pipe 10. The liquid inlet port 41 of the liquid inlet interface 40 of the universal cooling pipe 100 is connected to a cooling water pipeline.

[0013] In practice, a temperature sensor is installed inside the sealing seat of the mechanical seal mechanism 70, and the temperature sensor monitors the working temperature of the mechanical seal mechanism in real time. When the mechanical seal temperature exceeds the set threshold, the cooling water flow rate is automatically increased; when the temperature is normal, the flow rate is reduced to achieve energy saving and precise cooling.

[0014] In a specific embodiment, the universal cooling pipe 100 is fixed to the side of the sealing seat of the mechanical seal mechanism 70 by the pipe clamp 90; the plastic cooling pipe 10 is manually bent so that the liquid outlet nozzle 20 is precisely aligned with the friction surface of the mechanical seal mechanism 70; cooling water is introduced to continuously spray and cool the mechanical seal mechanism 70; the temperature sensor collects the working temperature of the mechanical seal mechanism 70 in real time; when the collected temperature is >55℃, the system automatically increases the cooling water flow rate; when the collected temperature is <45℃, the flow rate is reduced; the equipment operates for a long time, the temperature of the mechanical seal mechanism 70 is stable, there is no overheating or leakage, and the cooling effect is excellent.

[0015] In a specific embodiment, the bearing housing 80 is fixedly mounted on the bearing housing mounting bracket 120. The inner side of the bearing housing mounting bracket 120 forms a cooling water buffer zone 121. The bearing housing mounting bracket 120 is provided with a water outlet 122 on one side corresponding to the cooling water buffer zone 121. A drain valve 130 is fixedly mounted below the water outlet 122 to facilitate timely and reliable discharge of cooling water and prevent the cooling water from affecting other working parts.

[0016] The working principle of the universal cooling pipe is as follows: The universal cooling pipe uses a flexible and shapeable plastic cooling pipe. One end of the plastic cooling pipe is connected to the liquid inlet through a connector to receive cooling water. The liquid outlet nozzle at the other end of the plastic cooling pipe can be freely adjusted to accurately align with the mechanical seal friction pair. In addition, the plastic cooling pipe material is corrosion resistant and does not easily form scale, ensuring uniform heat conduction and a long subsequent maintenance cycle.

[0017] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0018] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A universal cooling pipe for a mechanical seal of a distillation vessel, characterized in that, It includes: The plastic cooling tube has a tube length greater than half the circumference of the mechanical seal mechanism, and the plastic cooling tube has universal shaping performance. The liquid inlet end of the plastic cooling tube is provided with a first external thread. Liquid dispensing nozzle; A connector includes a sleeve structure, wherein the two ends of the sleeve structure are respectively recessed to form a first internal thread and a second internal thread in the length direction; And the liquid inlet interface, which includes a liquid inlet port and a liquid outlet port; The liquid inlet port has a second external thread on its outer periphery, and the second external thread of the liquid inlet port is threaded to the second internal thread. The liquid inlet end of the plastic cooling tube has a first external thread threaded to the first internal thread, and the liquid outlet end of the plastic cooling tube is integrated with a liquid outlet nozzle.

2. The universal cooling pipe for a mechanical seal of a distillation vessel according to claim 1, characterized in that: The plastic cooling pipe is made of engineering plastic.

3. A universal cooling pipe for a mechanical seal of a distillation vessel according to claim 1, characterized in that: The plastic cooling tube is wound into a spiral straight rod.

4. A universal cooling pipe for a mechanical seal of a distillation vessel according to claim 1, characterized in that: The liquid outlet nozzle includes a tapered transition cavity that narrows from back to front, and a small-diameter liquid outlet.

5. A cooling mechanism, which employs a universal cooling pipe for a mechanical seal of a distillation kettle as described in any one of claims 1-4, comprising a distillation kettle stirring shaft, the stirring shaft protruding outward from a through hole in the end cap, the mechanical seal mechanism being disposed around the periphery of the stirring shaft passing through the through hole, the protruding end of the stirring shaft penetrating a bearing on a bearing housing, characterized in that: It also includes a universal cooling pipe, a pipe clamp, and a fixing plate; the fixing plate is fixed to the end cap or bearing seat, and the fixing plate is provided with a pipe clamp, which clamps the outer circumference of the connector of the universal cooling pipe. The liquid outlet nozzle of the universal cooling pipe is arranged towards the friction surface of the mechanical seal mechanism after being wrapped around the plastic cooling pipe. The liquid inlet port of the universal cooling pipe is connected to a cooling water pipeline.

6. A universal cooling pipe for a mechanical seal of a distillation vessel according to claim 5, characterized in that: A temperature sensor is installed inside the sealing seat of the mechanical seal mechanism, and the temperature sensor monitors the operating temperature of the mechanical seal mechanism in real time.

7. A universal cooling pipe for a mechanical seal of a distillation vessel according to claim 6, characterized in that: When the mechanical seal temperature exceeds the set threshold, the cooling water flow rate is automatically increased; when the temperature is normal, the flow rate is reduced to achieve energy saving and precise cooling.

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