PBT esterification vertical shield pump offline cleaning device
By designing an offline cleaning device for the PBT esterification vertical shielded pump and using triethylene glycol cleaning equipment and automated cleaning of the heating pipe, the pump blockage problem caused by coking of PBT esterification materials was solved, achieving a safe and economical cleaning effect.
Patent Information
- Application Number
- CN202422916176.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-28
- Publication Date
- 2025-10-24
- Estimated Expiration
- 2034-11-28
AI Technical Summary
During the production process, PBT esterification materials are prone to coking and sticking to the pipe wall, causing pump blockage, increasing operating resistance and damaging equipment. Cleaning is also difficult and dangerous.
A PBT esterification vertical shielded pump offline cleaning device is designed, including a vertical pump and triethylene glycol cleaning equipment. The pipeline is connected by bolts and flanges to achieve automatic cleaning. Combined with a heating pipe, it ensures that coke and solid matter are thoroughly cleaned.
It achieves safe and thorough cleaning, reduces cleaning costs, reduces manpower requirements, avoids safety accidents, and ensures the normal operation of equipment.
Smart Images
Figure CN223469484U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to PBT production device technical field, concretely relates to a kind of PBT esterification vertical shield pump line cleaning device. BACKGROUND
[0002] In the PBT production process, PBT esterification material is the key equipment of material conveying, in PBT esterification reaction process, some coking and PBT solid material stick on pipe wall. These coking and PBT solid material are easy to accumulate in the interior of pump, block the import and export of pump, impeller gap or bearing lubricating hole and other parts. Blockage can cause the running resistance of pump to increase, increase the load of pump, thereby causing the damage of pump.
[0003] PBT esterification material damage in production can affect the normal operation of entire production line if not timely replacement, replacement esterification material in production is operated under high temperature and with melt, which is very dangerous. In order to ensure the normal operation of esterification material in production cycle, PBT esterification material is detected and maintained every time shutdown maintenance, to ensure that PBT esterification material can operate normally in the next production cycle. Since PBT esterification material is sliding bearing and the material of bearing is silicon carbide material, the material of silicon carbide is particularly brittle. If these materials are not cleaned, PBT esterification material is started again, there is no liquid material to lubricate bearing, which can directly cause the damage of sliding bearing, which is not allowed for equipment. Therefore, cleaning the material in PBT esterification material is the necessary work of each maintenance, and it is very difficult to clean because of the complex structure of pump. UTILITY MODEL CONTENTS
[0004] In view of the deficiencies of prior art, the utility model provides a kind of PBT esterification vertical shield pump line cleaning device, including vertical pump and triethylene glycol cleaning equipment, the outlet of triethylene glycol cleaning equipment is connected with the one end of first flange metal hose by bolt and gasket, the other end of first flange metal hose is connected with overflow port pipeline by bolt and gasket, overflow port pipeline is connected with the upper end of vertical pump on one side by valve, the upper end of vertical pump is provided with esterification material inlet, the lower end of vertical pump is provided with slag discharge port pipeline, the lower side of slag discharge port pipeline is connected with the flange of one end of workpiece, the other end of workpiece is connected with the one side of second flange metal hose, the one side of second flange metal hose is connected with the inlet of triethylene glycol cleaning equipment.
[0005] As a further improvement of the utility model, the esterification material inlet is sealed by the esterification material inlet flange and the second flange cover arranged above the esterification material inlet, the periphery of the vertical pump is provided with a volute, the volute is provided with an esterification material outlet on one side, and the esterification material outlet is sealed by the esterification material outlet flange and the first flange cover arranged above the esterification material outlet.
[0006] As further improvement of the utility model, the vortex shell is provided with a heat tracing pipe on both sides thereof.
[0007] The utility model has the advantages of simple structure, convenient material taking, low cost, reusability, cleaning cost saving, automatic cleaning after connection, labor reduction, safety accident avoidance, safety guarantee, complete coking and PBT solid cleaning, and multiple pump connection.
[0008] The utility model has the advantages of simple structure, convenient material taking, low cost, reusability, cleaning cost saving, automatic cleaning after connection, labor reduction, safety accident avoidance, safety guarantee, complete coking and PBT solid cleaning, and multiple pump connection.
[0009] The utility model has the advantages of simple structure, convenient material taking, low cost, reusability, cleaning cost saving, automatic cleaning after connection, labor reduction, safety accident avoidance, safety guarantee, complete coking and PBT solid cleaning, and multiple pump connection.
[0010] The utility model has the advantages of simple structure, convenient material taking, low cost, reusability, cleaning cost saving, automatic cleaning after connection, labor reduction, safety accident avoidance, safety guarantee, complete coking and PBT solid cleaning, and multiple pump connection. BRIEF DESCRIPTION OF DRAWINGS
[0011] Figure 1 It is a structure diagram of the PBT esterification vertical shielding pump offline cleaning device of the utility model;
[0012] Figure 2 It is a structure diagram of the PBT esterification vertical shielding pump of the utility model;
[0013] Reference Signs: 1, first flange metal hose, 2, overflow port, 3, deslagging port, 4, processing piece, 5, second flange metal hose, 6, esterification material outlet flange, 7, first flange cover, 8, esterification material inlet flange, 9, second flange cover, 10, vortex shell, 11, vertical pump, 12, valve, 13, heat tracing pipe. DETAILED DESCRIPTION
[0014] In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. The embodiments described are shown in the drawings. Conversely, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.
[0015] As Figure 1As shown, a PBT esterification vertical shielding pump line cleaning device, comprising a central vertical pump 11 and a triethylene glycol cleaning device, the outlet of the triethylene glycol cleaning device is connected to one end of the first flange metal hose 1 through bolts and gaskets, the other end of the first flange metal hose 1 is connected to the overflow pipe line 2 through bolts and gaskets, the overflow pipe line 2 is connected to one side of the upper end of the vertical pump 11 through the valve 12, the lower end of the vertical pump 11 is provided with a slag discharge pipe line 3, the lower side of the slag discharge pipe line 3 is connected to the flange of one end of the workpiece 4, the other end of the workpiece 4 is connected to one side of the second flange metal hose 5, one side of the second flange metal hose 5 is connected to the inlet of the triethylene glycol cleaning device. The esterification material inlet is sealed through the esterification material inlet flange 8 and the second flange cover 9, the periphery of the vertical pump 11 is provided with a volute 10, one side of the volute 10 is provided with an esterification material outlet, the esterification material outlet is sealed through the esterification material outlet flange 6 and the first flange cover 7. Both sides of the lower part of the volute 10 are provided with heat tracing pipes 13.
[0016] In use of the device, first, the vertical pump 11 is removed from the production line, and then the impeller and rotor in the pump are removed. Next, the shell of the pump is reassembled. In this process, the original slag removal tee valve and a section of overflow pipeline need to be removed, and the specific structure is shown in Figure 2 .
[0017] As shown in Figure 2 , first, the triethylene glycol cleaning device is started, and the triethylene glycol is circulated in the device, and whether there is leakage in each pipeline is checked, if there is leakage, the triethylene glycol cleaning device needs to be stopped to repair the leakage, until there is no leakage and the pump is stopped. Then the triethylene glycol in the triethylene glycol cleaning device is heated to 200 DEG C, after the temperature reaches, the pump is started, and the triethylene glycol passes through the first flange metal hose 1, the overflow pipe line 2, the entire pump body in sequence, and finally returns to the triethylene glycol cleaning device through the slag discharge pipe line 3. This circulation process will continue for a period of time to ensure that the residual material in the pump and the pipeline can be thoroughly cleaned.
[0018] The above-described embodiments only express several embodiments of the present application, and the description is more specific and detailed, but it cannot be understood as limiting the scope of the application patent. It should be noted that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which belong to the protection scope of the present application. Therefore, the protection scope of the application patent should be subject to the appended claims.
Claims
1. A PBT esterification vertical canned pump line cleaning device, characterized in that, The utility model discloses a vertical pump (11) and triethylene glycol cleaning equipment, the outlet of triethylene glycol cleaning equipment is connected with the one end of first flange metal hose (1) through bolt and gasket, the other end of first flange metal hose (1) is connected with overflow pipeline (2) through bolt and gasket, overflow pipeline (2) is connected with the upper end one side of vertical pump (11) through valve (12), the upper end of vertical pump (11) is provided with esterification material inlet, the lower end of vertical pump (11) is provided with slag outlet pipeline (3), the lower side corresponding position of slag outlet pipeline (3) is connected with the flange of one end of processing piece (4), the other end of processing piece (4) is connected with one side of second flange metal hose (5), one side of second flange metal hose (5) is connected with the inlet of triethylene glycol cleaning equipment.
2. The PBT esterification vertical canned pump line cleaning device according to claim 1, characterized in that, The esterification material inlet is sealed through esterification material inlet flange (8) and second flange cover (9), the periphery of vertical pump (11) is provided with volute (10), one side of volute (10) is provided with esterification material outlet, and the esterification material outlet is sealed through esterification material outlet flange (6) and first flange cover (7).
3. The PBT esterification vertical canned pump line cleaning device according to claim 2, characterized in that, Both sides below volute (10) are provided with heat tracing pipe (13).