CN217614658U - Final polymerization spraying ethylene glycol temperature control device - Google Patents
Final polymerization spraying ethylene glycol temperature control device Download PDFInfo
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- CN217614658U CN217614658U CN202220792038.7U CN202220792038U CN217614658U CN 217614658 U CN217614658 U CN 217614658U CN 202220792038 U CN202220792038 U CN 202220792038U CN 217614658 U CN217614658 U CN 217614658U
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Abstract
The utility model discloses a final-polymerization spray ethylene glycol temperature control device, which comprises a preheater, a final-polymerization hot well, a final-polymerization spray condenser, a final-polymerization tubular heat exchanger and a final-polymerization polyethylene glycol circulating pump; the ethylene glycol inlet of the preheater and the ethylene glycol inlet of the final heat gathering well are communicated with an ethylene glycol conveying pipeline, the ethylene glycol outlet of the preheater is communicated with the ethylene glycol inlet of the final heat gathering well, the final spray condenser is communicated with the interior of the final heat gathering well, the ethylene glycol outlet of the final heat gathering well is communicated with one end of a final polyethylene glycol circulating pump, the other end of the final polyethylene glycol circulating pump is communicated with the ethylene glycol inlet of the final tubular heat exchanger, and the ethylene glycol outlet of the final tubular heat exchanger is communicated with the interior of the final spray condenser. The utility model discloses a gather eventually and spout ethylene glycol temperature control device simple structure, convenient to use through setting up pre-heater and gathering the shell and tube heat exchanger eventually, preheats fresh ethylene glycol, improves circulation ethylene glycol temperature, makes and gather eventually and spout that the temperature is controllable, has solved the problem that the temperature is on the low side.
Description
Technical Field
The utility model relates to a temperature control device technical field, concretely relates to gather at end and spray ethylene glycol temperature control device.
Background
In the process flow of the Cortis polyester device, a final polymerization vacuum spraying system is designed with two spraying cycles: the primary spraying flow is large, the set temperature is high, and the entrainment extracted from the final polymerization kettle and a small amount of glycol steam are mainly condensed and washed to enter a final polymerization hot well; the secondary spraying flow is small, the set temperature is low, and the main function is to condense and capture small molecular substances and a small amount of glycol steam escaping in the primary spraying again, so that the cleanness of a rear three-stage vacuum spraying system is ensured.
Due to the existence of secondary spraying, the primary spraying temperature can be set higher, which is beneficial to preventing impurities in the glycol from being separated out due to low temperature to cause pipeline scaling and pipe diameter reduction, thereby causing pipeline blockage and weakening the capacity of a vacuum system. The primary spraying temperature is adjusted and controlled by a group of tube type heat exchangers through cooling water, when the ambient temperature of a workshop in winter is reduced, the natural heat dissipation of an exposed pipeline is intensified, the primary spraying temperature control valve position which is finally gathered is gradually reduced, and the temperature of the primary spraying temperature control valve position can not be increased to the temperature required by the process even if the cooling water is not used. Therefore, the constance designs a warm water pump, and forces the cooling water to carry out small circulation so as to reduce the temperature difference between the circulating glycol and the cooling water and be beneficial to the stable control of the temperature. However, the temperature can only be lowered but not raised in design, so that the problem of low temperature cannot be fundamentally solved.
Based on the circumstances, the utility model provides a gather eventually and spout ethylene glycol temperature control device can effectively solve above one kind or multiple problem.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a gather at end and spray ethylene glycol temperature control device. The utility model discloses a gather eventually and spout ethylene glycol temperature control device simple structure, convenient to use through setting up pre-heater and gathering the shell and tube heat exchanger eventually, preheats fresh ethylene glycol, improves circulation ethylene glycol temperature, makes and gather eventually and spout that the temperature is controllable, has solved the problem that the temperature is on the low side.
The utility model discloses a following technical scheme realizes:
a final-polymerization spray-coating glycol temperature control device comprises a preheater, a final-polymerization hot well, a final-polymerization spray-coating condenser, a final-polymerization tubular heat exchanger and a final-polymerization polyethylene glycol circulating pump;
the system comprises a preheater, a final heat accumulation well, a final polyethylene glycol circulating pump, a final polyethylene glycol tubular heat exchanger, a final polyethylene glycol spray condenser, a final polyethylene glycol conveying pipeline, a final polyethylene glycol inlet of the preheater and a ethylene glycol inlet of the final heat accumulation well, wherein the ethylene glycol inlet of the preheater and the ethylene glycol inlet of the final heat accumulation well are both communicated with an ethylene glycol conveying pipeline;
the pre-heater is provided with a hot water inlet and a hot water outlet, a first valve is arranged on the hot water inlet, a second valve is arranged on the hot water outlet, the final polymerization tubular heat exchanger is provided with a cooling water inlet and a cooling water outlet, a third valve is arranged on the cooling water inlet, and a fourth valve is arranged on the cooling water outlet.
An object of the utility model is to provide a gather at end and spray ethylene glycol temperature control device. The utility model discloses a gather eventually and spout ethylene glycol temperature control device simple structure, convenient to use through setting up pre-heater and gathering the shell and tube heat exchanger eventually, preheats fresh ethylene glycol, improves circulation ethylene glycol temperature, makes and gather eventually and spout that the temperature is controllable, has solved the problem that the temperature is on the low side.
Preferably, a fifth valve is arranged on a connecting pipeline between the ethylene glycol conveying pipeline and the final heat collecting well.
Preferably, a sixth valve is arranged on the glycol outlet of the preheater.
Preferably, a seventh valve is arranged on the ethylene glycol inlet of the preheater.
Preferably, the drainage flow of the glycol outlet of the final polymerization heat well is set to be 1000-2000 Kg/h.
Compared with the prior art, the utility model, following advantage and beneficial effect have:
the utility model discloses a gather at end and spout ethylene glycol temperature control device simple structure, convenient to use through setting up pre-heater and gathering at end the tubulation heat exchanger, preheats fresh ethylene glycol, improves circulation ethylene glycol temperature, makes to gather at end and spout that the temperature is controllable, has solved the problem on the low side of the temperature.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
In order to make the technical solutions of the present invention better understood by those skilled in the art, the following description of the preferred embodiments of the present invention is provided in conjunction with the specific examples, but it should be understood that the drawings are for illustrative purposes only and should not be construed as limiting the patent; for the purpose of better illustrating the present embodiments, certain elements of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the present patent.
Example 1:
as shown in fig. 1, the utility model provides a final polyethylene spraying glycol temperature control device, which comprises a preheater 1, a final heat collecting well 2, a final spray condenser 3, a final heat collecting tubular heat exchanger 4 and a final polyethylene glycol circulating pump 5;
the ethylene glycol inlet of the preheater 1 and the ethylene glycol inlet of the final heat-collecting well 2 are both communicated with an ethylene glycol conveying pipeline 6, the ethylene glycol outlet of the preheater 1 is communicated with the ethylene glycol inlet of the final heat-collecting well 2, the final spray condenser 3 is communicated with the interior of the final heat-collecting well 2, the ethylene glycol outlet of the final heat-collecting well 2 is communicated with one end of a final polyethylene glycol circulating pump 5, the other end of the final polyethylene glycol circulating pump 5 is communicated with the ethylene glycol inlet of a final tubular heat exchanger 4, and the ethylene glycol outlet of the final tubular heat exchanger 4 is communicated with the interior of the final spray condenser 3; the ethylene glycol conveying pipeline 6 can provide fresh ethylene glycol
The preheater 1 is provided with a hot water inlet and a hot water outlet, the hot water inlet is provided with a first valve 11, the hot water outlet is provided with a second valve 12, the final tubular heat exchanger 4 is provided with a cooling water inlet and a cooling water outlet, the cooling water inlet is provided with a third valve 41, and the cooling water outlet is provided with a fourth valve 42.
Further, in another embodiment, a fifth valve 21 is disposed on the connection pipe between the ethylene glycol conveying pipe 6 and the final heat collecting well 2.
Further, in another embodiment, a sixth valve 13 is disposed on the ethylene glycol outlet of the preheater 1.
Further, in another embodiment, a seventh valve 14 is disposed on the glycol inlet of the preheater 1.
Further, in another embodiment, the drainage flow of the glycol outlet of the final heat collecting well 2 is set to be 1000 to 2000Kg/h.
On the premise of meeting the temperature control, the number of the cooling water temperature control valve positions is 5-10%, and at the moment, the spraying temperature is high in controllability and high in energy saving performance.
The utility model discloses a theory of operation of an embodiment as follows:
a final polymerization spraying ethylene glycol temperature control device is characterized in that a sixth valve 13 is opened, a seventh valve 14 is slightly opened, the introduction flow of fresh ethylene glycol is controlled to be 1000-2000Kg/h through a device total flow meter, then a first valve 11 and a second valve 12 are opened, hot water is introduced, the fresh ethylene glycol is heated to about 50 ℃ by using an ethylene glycol preheater 1 and then flows into a final polymerization heat well 2, the temperature of the ethylene glycol in the final polymerization heat well 2 is adjusted, a temperature control system where the fourth valve 42 is located plays a role, the spraying temperature is stably controlled within the range of technological requirements, and then a cooling water outlet pneumatic valve of a final polymerization tubular heat exchanger 4 is used for fine control.
According to the description and the drawings of the utility model, the technicians in the field can easily make or use the utility model discloses a final polymer spray ethylene glycol temperature control device to can produce the positive effect recorded in the utility model.
Unless otherwise specified, in the present invention, if the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for the convenience of description and simplification of the description, but it does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore the terms describing the orientation or positional relationship in the present invention are only used for illustrative purposes and are not to be construed as limiting the present patent, and it is possible for a person having ordinary skill in the art to understand the specific meaning of the above terms according to the specific circumstances in conjunction with the drawings.
Unless expressly stated or limited otherwise, the terms "disposed," "connected," and "connected" are used broadly in the present disclosure and encompass, for example, either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention in any form, and all the technical matters of the present invention are all within the protection scope of the present invention for any simple modification and equivalent change of the above embodiments.
Claims (5)
1. The utility model provides a final polymerization sprays ethylene glycol temperature control device which characterized in that: comprises a preheater, a final polymerization hot well, a final polymerization spray condenser, a final polymerization tubular heat exchanger and a final polyethylene glycol circulating pump;
the system comprises a preheater, a final heat accumulation well, a final polyethylene glycol circulating pump, a final polyethylene glycol tubular heat exchanger, a final polyethylene glycol spray condenser, a final polyethylene glycol conveying pipeline, a final polyethylene glycol inlet of the preheater and a ethylene glycol inlet of the final heat accumulation well, wherein the ethylene glycol inlet of the preheater and the ethylene glycol inlet of the final heat accumulation well are both communicated with an ethylene glycol conveying pipeline;
the pre-heater is provided with a hot water inlet and a hot water outlet, the hot water inlet is provided with a first valve, the hot water outlet is provided with a second valve, the final condensation tube heat exchanger is provided with a cooling water inlet and a cooling water outlet, the cooling water inlet is provided with a third valve, and the cooling water outlet is provided with a fourth valve.
2. The final polyethylene spray glycol temperature control device according to claim 1, wherein: and a fifth valve is arranged on a connecting pipeline between the ethylene glycol conveying pipeline and the final heat collecting well.
3. The final polyethylene spray glycol temperature control device according to claim 1, characterized in that: and a sixth valve is arranged on the ethylene glycol outlet of the preheater.
4. The final polyethylene spray glycol temperature control device according to claim 1, characterized in that: and a seventh valve is arranged on the ethylene glycol inlet of the preheater.
5. The final polyethylene spray glycol temperature control device according to claim 1, characterized in that: the drainage flow of the glycol outlet of the final heat-collecting well is set to be 1000-2000 Kg/h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220792038.7U CN217614658U (en) | 2022-04-07 | 2022-04-07 | Final polymerization spraying ethylene glycol temperature control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220792038.7U CN217614658U (en) | 2022-04-07 | 2022-04-07 | Final polymerization spraying ethylene glycol temperature control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217614658U true CN217614658U (en) | 2022-10-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220792038.7U Active CN217614658U (en) | 2022-04-07 | 2022-04-07 | Final polymerization spraying ethylene glycol temperature control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217614658U (en) |
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2022
- 2022-04-07 CN CN202220792038.7U patent/CN217614658U/en active Active
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