CN213934645U - Cyclohexane storage system - Google Patents
Cyclohexane storage system Download PDFInfo
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- CN213934645U CN213934645U CN202023215766.1U CN202023215766U CN213934645U CN 213934645 U CN213934645 U CN 213934645U CN 202023215766 U CN202023215766 U CN 202023215766U CN 213934645 U CN213934645 U CN 213934645U
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- cyclohexane
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Abstract
The utility model discloses a cyclohexane storage system, it includes holding vessel, feed water tank, second coil pipe, steam conduit, cold water pipeline and DCS control system. Cyclohexane is stored in the storage tank, the outer wall of the storage tank is wound with a first coil pipe, and a first temperature sensor is arranged in the storage tank. The inside of the water supply tank is provided with circulating water, the outlet end of the water supply tank is communicated with the inlet end of the first coil pipe through a centrifugal pump, and the inlet end of the water supply tank is communicated with the outlet end of the first coil pipe. The second coil pipe is arranged in the water supply tank. The steam pipeline is communicated with the second coil pipe so as to input steam into the second coil pipe. The cold water pipeline is communicated with the second coil pipe so as to input low-temperature water into the second coil pipe. DCS control system and first temperature sensor with centrifugal pump all electric connection. The utility model discloses the temperature that cyclohexane storage system can make the interior cyclohexane of holding vessel can keep at suitable temperature, avoids volatilizing and the crystallization of cyclohexane to can save raw materials and convenient to use.
Description
Technical Field
The utility model relates to a storage technical field of cyclohexane specifically is a cyclohexane storage system.
Background
Cyclohexane is likely to crystallize at a low temperature and cannot be used. At higher temperatures, cyclohexane is easily volatilized, resulting in waste of raw materials. It was found that maintaining the cyclohexane temperature at 20-26 c avoids crystallization of cyclohexane and reduces its volatilization.
The conventional cyclohexane storage system can only play a basic role in storage, but cannot keep cyclohexane at a proper temperature, so that the cyclohexane is volatilized quickly, and the cyclohexane is inconvenient to use when crystallized, thereby causing inconvenience in production and processing.
In view of the above, there is a need for a cyclohexane storage system, which can reduce the volatilization of cyclohexane, and can avoid the crystallization, thereby facilitating the use and saving raw materials.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects in the prior art, the utility model provides a cyclohexane storage system, its temperature that can make the interior cyclohexane of holding vessel can keep at suitable temperature, avoids volatilizing and the crystallization phenomenon of cyclohexane to can material saving and convenient to use.
The utility model discloses a cyclohexane storage system, include:
the storage tank is internally stored with cyclohexane, the outer wall of the storage tank is wound with a first coil pipe, and a first temperature sensor is arranged in the storage tank;
the outlet end of the water supply tank is communicated with the inlet end of the first coil pipe through a centrifugal pump, and the inlet end of the water supply tank is communicated with the outlet end of the first coil pipe, so that the circulating water in the water supply tank can circulate in the first coil pipe;
the second coil pipe is arranged in the water supply tank;
the steam pipeline is communicated with the second coil pipe so as to input steam into the second coil pipe, and further the second coil pipe can heat circulating water in the water supply tank;
the cold water pipeline is communicated with the second coil pipe so as to input low-temperature water into the second coil pipe, and further the second coil pipe cools circulating water in the water supply tank;
DCS control system, DCS control system with first temperature sensor with the equal electric connection of centrifugal pump to when the temperature in the holding vessel reaches first preset temperature value, first temperature sensor can transmit signal extremely DCS control system, so that DCS control system control the centrifugal pump stops the operation.
Preferably, a first pneumatic valve is arranged on the steam pipeline to adjust the flow rate of the steam conveyed into the second coil pipe by the steam pipeline.
It is further preferred that a second temperature sensor is arranged in the water supply tank, and the second temperature sensor and the first pneumatic valve are electrically connected with the DCS control system, so that when the temperature in the water supply tank reaches a second preset temperature value, the second temperature sensor can transmit a signal to the DCS control system, and the DCS system controls the first pneumatic valve to reduce the opening.
Preferably, a valve is arranged on the cold water pipeline to close the communication between the cold water pipeline and the second coil pipe.
Preferably, the storage tank is externally provided with a thermal insulation sleeve.
Preferably, the heat-insulating sleeve comprises at least one heat-insulating layer, and the heat-insulating layer is made of foamed polyurethane.
Preferably, the outlet end of the second coil is communicated with a liquid collecting device to collect water in the second coil.
The utility model has the advantages as follows:
the cyclohexane storage system of the utility model is communicated with the second coil pipe through the steam pipeline, so that the second coil pipe can heat the circulating water in the water supply tank, and the first coil pipe can heat cyclohexane; the cold water pipeline is communicated with the second coil pipe, so that the second coil pipe can cool the circulating water in the water supply tank, and the first coil pipe can cool cyclohexane; therefore, the temperature of the cyclohexane in the storage tank can be kept at a proper temperature, and the volatilization and crystallization phenomena of the cyclohexane are avoided, so that the raw materials can be saved and the use is convenient.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic diagram of a cyclohexane storage system in an embodiment of the present invention;
reference numerals of the above figures: 1-a storage tank; 2-a first coil; 3-a first temperature sensor; 4-water supply tank; 5-a second coil pipe; 6-a second temperature sensor; 7-a steam line; 8-cold water pipeline; 9-a centrifugal pump; 10-a liquid collection device; 11-insulating sleeve; 12-a first pneumatic valve; 13-valve.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, the present embodiment provides a cyclohexane storage system including a storage tank 1, a water supply tank 4, a first coil 2, a second coil 5, a steam line 7, a cold water line 8, and a DCS control system.
The storage tank 1 is in a sealed state, and the interior of the storage tank 1 is subjected to corrosion prevention treatment so as to avoid liquid leakage and liquid pollution caused by corrosion of the storage tank 1. Cyclohexane is stored in the storage tank 1. The outer wall of holding vessel 1 is around being equipped with first coil 2, and first coil 2 is used for heating or cooling to the cyclohexane in the holding vessel 1. Be equipped with first temperature sensor 3 in the holding vessel 1, the temperature of the cyclohexane in the holding vessel 1 can real-time supervision by the setting of first temperature sensor 3 to the temperature of cyclohexane is adjusted in order to make it can keep at suitable temperature value.
Circulating water is provided in the water supply tank 4, an outlet end of the water supply tank 4 is communicated with an inlet end of the first coil 2 through a centrifugal pump 9, and an inlet end of the water supply tank 4 is communicated with an outlet end of the first coil 2, so that the circulating water in the water supply tank 4 can circulate in the first coil 2. The centrifugal pump 9 can pump the circulating water in the water supply tank 4 into the first coil 2, and the circulating water in the first coil 2 exchanges heat with the cyclohexane in the storage tank 1 and then flows back into the water supply tank 4 to be heated or cooled.
The second coil pipe 5 is provided in the water supply tank 4. The second coil 5 is used for heating or cooling the circulating water in the water supply tank 4.
The steam pipeline 7 is communicated with the second coil pipe 5 so as to input steam into the second coil pipe 5, and further the second coil pipe 5 can heat circulating water in the water supply tank 4. In the embodiment, the steam is water steam, the temperature of the steam is controlled to be 100-150 ℃, the heating effect of the steam on the circulating water in the water supply tank 4 can meet the use requirement, and a series of high-temperature hazards can be avoided.
The cold water pipeline 8 is communicated with the second coil pipe 5 so as to input low-temperature water into the second coil pipe 5, and then the second coil pipe 5 cools the circulating water in the water supply tank 4. The temperature of the low-temperature water is 10-15 ℃, so that the circulating water in the water supply tank 4 is kept at a lower temperature.
The DCS control system is electrically connected with the first temperature sensor 3 and the centrifugal pump 9, so that when the temperature in the storage tank 1 reaches a first preset temperature value, the first temperature sensor 3 can transmit a signal to the DCS control system, and the DCS control system controls the centrifugal pump 9 to stop running.
When the cyclohexane temperature in the holding vessel 1 is lower, make steam pipeline 7 to the interior input steam of second coil pipe 5, so that second coil pipe 5 heats the circulating water in the feed water tank 4, thereby make the circulating water reach higher temperature, this high temperature hydroenergy heats cyclohexane in getting into first coil pipe 2, and when the cyclohexane temperature reaches first predetermined temperature value, need stop the heating to cyclohexane, otherwise can cause the cyclohexane to volatilize fast, and DCS control system and centrifugal pump 9's chain can avoid the emergence of this kind of phenomenon. Through setting up DCS control system with first temperature sensor 3 with the equal electric connection of centrifugal pump 9 to can in time close centrifugal pump 9 in order to stop the heating to cyclohexane when the cyclohexane temperature reaches first predetermined temperature value, avoid causing volatilizing of cyclohexane, thereby can practice thrift the raw materials.
In the embodiment, the steam pipeline 7 is communicated with the second coil 5, so that the second coil 5 can heat circulating water in the water supply tank 4, and further the first coil 2 can heat cyclohexane; the cold water pipeline 8 is communicated with the second coil pipe 5, so that the second coil pipe 5 can cool the circulating water in the water supply tank 4, and the first coil pipe 2 can cool cyclohexane; therefore, the cyclohexane in the storage tank 1 can be kept at a proper temperature, and the volatilization and crystallization phenomena of the cyclohexane are avoided, so that the raw materials can be saved and the use is convenient.
A first pneumatic valve 12 is arranged on the steam line 7 to adjust the flow rate of the steam delivered by the steam line 7 to the second coil 5. When cyclohexane is heated, if the temperature of cyclohexane reaches a first preset temperature value, the centrifugal pump 9 needs to be closed, circulating water in the water supply tank 4 does not need to be kept at a high temperature at the moment, and only basic heat preservation is needed, so that the flow of steam of the second coil pipe 5 is reduced, and energy can be saved.
A second temperature sensor 6 is provided in the water supply tank 4, and the temperature of the circulating water in the water supply tank 4 can be monitored in real time by the second temperature sensor 6. Second temperature sensor 6 and first pneumatic valve 12 all with DCS control system electric connection to when the temperature in the feed water tank 4 reaches the second and predetermines the temperature value, second temperature sensor 6 can transmit signal to DCS control system, so that the first pneumatic valve 12 of DCS system control reduces the aperture, from this, can realize the intelligent control to feed water tank 4 internal circulating water temperature.
A valve 13 is arranged on the cold water pipeline 8 so as to close the communication between the cold water pipeline 8 and the second coil pipe 5. When cyclohexane needs to be heated, low-temperature water does not need to be input into the second coil pipe 5, steam is input into the second coil pipe 5, and at the moment, the communication between the cold water pipeline 8 and the second coil pipe 5 is closed, so that the heating effect is prevented from being influenced when the low-temperature water enters the second coil pipe 5. At the same time, the arrangement of the first pneumatic valve 12 can close the communication between the steam pipeline 7 and the second coil 5. When the temperature of the cyclohexane needs to be reduced, steam does not need to be input into the second coil 5, and low-temperature water is input into the second coil 5. At this time, the communication between the steam pipeline 7 and the second coil 5 is closed to avoid the influence of the steam on the cooling effect when the steam enters the second coil 5.
An insulating sleeve 11 is arranged outside the storage tank 1 to reduce heat loss. The heat insulation sleeve 11 comprises at least one heat insulation layer which is made of foamed polyurethane, and the heat insulation layer is low in price and can play a good heat insulation effect.
The outlet end of the second coil 5 is communicated with a liquid collecting device 10 to collect water in the second coil 5, and the collected water can be reused to save water resources.
The utility model discloses the principle and the implementation mode of the utility model are explained by applying the concrete embodiment, and the explanation of the above embodiment is only used for helping to understand the technical scheme and the core idea of the utility model; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the specific implementation and application scope, to sum up, the content of the present specification should not be understood as the limitation of the present invention.
Claims (7)
1. A cyclohexane storage system, comprising:
the storage tank is internally stored with cyclohexane, the outer wall of the storage tank is wound with a first coil pipe, and a first temperature sensor is arranged in the storage tank;
the outlet end of the water supply tank is communicated with the inlet end of the first coil pipe through a centrifugal pump, and the inlet end of the water supply tank is communicated with the outlet end of the first coil pipe, so that the circulating water in the water supply tank can circulate in the first coil pipe;
the second coil pipe is arranged in the water supply tank;
the steam pipeline is communicated with the second coil pipe so as to input steam into the second coil pipe, and further the second coil pipe can heat circulating water in the water supply tank;
the cold water pipeline is communicated with the second coil pipe so as to input low-temperature water into the second coil pipe, and further the second coil pipe cools circulating water in the water supply tank;
DCS control system, DCS control system with first temperature sensor with the equal electric connection of centrifugal pump to when the temperature in the holding vessel reaches first preset temperature value, first temperature sensor can transmit signal extremely DCS control system, so that DCS control system control the centrifugal pump stops the operation.
2. The cyclohexane storage system of claim 1, wherein the steam line is provided with a first pneumatic valve to enable adjustment of the flow rate of the steam line to the second coil.
3. A cyclohexane storage system according to claim 2, wherein a second temperature sensor is provided in the feed water tank, the second temperature sensor and the first pneumatic valve being electrically connected to the DCS control system, whereby when the temperature in the feed water tank reaches a second predetermined temperature value, the second temperature sensor can transmit a signal to the DCS control system to cause the DCS system to control the first pneumatic valve to decrease in opening.
4. A cyclohexane storage system according to claim 1, wherein a valve is provided on the cold water line to close off communication between the cold water line and the second coil.
5. A cyclohexane storage system according to claim 1, characterised in that the storage tank is externally provided with a jacket.
6. A cyclohexane storage system according to claim 5, wherein the jacket comprises at least one layer of insulation, which is foamed polyurethane.
7. A cyclohexane storage system according to claim 1, wherein the outlet end of the second coil is connected to a liquid collection device for collecting water from the second coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023215766.1U CN213934645U (en) | 2020-12-28 | 2020-12-28 | Cyclohexane storage system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023215766.1U CN213934645U (en) | 2020-12-28 | 2020-12-28 | Cyclohexane storage system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213934645U true CN213934645U (en) | 2021-08-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023215766.1U Active CN213934645U (en) | 2020-12-28 | 2020-12-28 | Cyclohexane storage system |
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|---|---|
| CN (1) | CN213934645U (en) |
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- 2020-12-28 CN CN202023215766.1U patent/CN213934645U/en active Active
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