CN217082170U - Low-temperature liquid air-temperature type vaporization system - Google Patents
Low-temperature liquid air-temperature type vaporization system Download PDFInfo
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- CN217082170U CN217082170U CN202220591699.3U CN202220591699U CN217082170U CN 217082170 U CN217082170 U CN 217082170U CN 202220591699 U CN202220591699 U CN 202220591699U CN 217082170 U CN217082170 U CN 217082170U
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Abstract
The utility model provides a low-temperature liquid air-temperature type vaporization system; the low-temperature liquid vaporization gas supply field comprises a vaporizer and a vapor pipeline, wherein the inlet end of the vaporizer is connected with a liquid storage tank, and the outlet end of the vaporizer is connected with an output valve; the side surface of the vaporizer is provided with at least two groups of fans, the acting area of each fan covers the vaporizer, one end of each steam pipeline is opened towards the vaporizer, and the other end of each steam pipeline is connected with a steam valve in series and then is used for connecting a steam source; aiming at the problem that the vaporization efficiency is reduced due to the fact that fins of the existing vaporizer are easy to frost and freeze, fans for enhancing air flow speed and an external steam heat supply structure are arranged around the vaporizer, air flow at the position of the vaporizer is improved, the temperature around the vaporizer is improved through output steam, the frost and icing phenomena of the fins of the vaporizer are reduced, and the vaporization efficiency is guaranteed.
Description
Technical Field
The utility model relates to a cryogenic liquids vaporization air feed field, in particular to cryogenic liquids air temperature formula vaporization system.
Background
The air temperature type vaporizing device is a heat exchange device which completely vaporizes or heats the low-temperature liquid in a heat exchanger by using natural convection ambient air as a heat source. The air-temperature type vaporization device consists of a multi-beam aluminum fin heat exchanger, a parameter local remote transmission device and a safety protection system.
At present, a conventional air-temperature type vaporization device is a device which utilizes a low-temperature liquid pump to pressurize liquid to a preset pressure and then conveys the liquid to a multi-beam aluminum fin heat exchanger through a stainless steel pipeline, and utilizes natural convection air as a heat source to carry out heat exchange. In the conventional air-temperature type vaporizer, a large amount of frost and ice are formed on the surface of an aluminum fin of the air-temperature type vaporizer under the environment of insufficient air flow and low air temperature, and the vaporization efficiency is seriously reduced. If the device is operated for a long time and inefficiently, the low-temperature liquid is not fully vaporized, so that the incompletely vaporized liquid enters a subsequent conveying pipeline and is even frozen in the pipeline, and serious hidden troubles are caused for the stable operation of the device.
SUMMERY OF THE UTILITY MODEL
The utility model aims at the defect that prior art exists, provide a cryogenic liquids air temperature formula vaporization system, arrange the fan and plus steam heat supply structure of reinforcing air velocity around the vaporizer, improve the air flow of vaporizer position to improve vaporizer ambient temperature through output steam, reduce frosting, the phenomenon of freezing of vaporizer fin, guarantee vaporization efficiency.
In order to realize the purpose, the following technical scheme is adopted:
a low-temperature liquid air-temperature type vaporization system comprises a vaporizer and a steam pipeline, wherein the inlet end of the vaporizer is connected with a liquid storage tank, and the outlet end of the vaporizer is connected with an output valve; the side surface of the vaporizer is provided with at least two groups of fans, the vaporizer is covered with the action area of the fans, one end of the steam pipeline is opened towards the vaporizer, and the other end of the steam pipeline is connected with a steam valve in series and then is used for connecting a steam source.
Further, the vaporizer comprises a vaporizing pipeline and fins arranged along the vaporizing pipeline, one end of the vaporizing pipeline is opened towards the fins so as to output steam to exchange heat with the fins.
Further, the vaporizing pipeline is provided with a plurality of fins, flow channels are formed between adjacent fins, and the direction of the airflow generated by the fan is parallel to or collinear with the axial direction of the flow channels.
Furthermore, a plurality of openings are formed in the steam pipeline, and correspond to the distribution positions of the fins so as to output steam to act on the fins and the vaporization pipeline.
Furthermore, the steam pipeline is wrapped by a heat insulation layer, and the heat insulation layer avoids an output port of the steam pipeline.
Furthermore, all fans are uniformly distributed along the circumferential direction of the vaporizer, each group of fans comprises two fans, and the vaporizer is located on a connecting line of the positions of the fans in the same group.
Further, a pump is arranged between the vaporizer and the liquid storage tank, and a flow valve is arranged between the pump and the liquid storage tank.
Furthermore, the upstream and the downstream of the vaporizer are respectively provided with a pressure gauge which is connected to a pipeline communicated with the vaporizer through a pressure sampling pipe.
Further, the outlet end of the output valve is provided with a thermometer.
Furthermore, the thermometer is connected with a controller, and the controller is used for controlling the opening of the output valve and the working start and stop of the vaporizer.
Compared with the prior art, the utility model has the advantages and positive effect be:
(1) aiming at the problem that the vaporization efficiency is reduced due to the fact that fins of the existing vaporizer are easy to frost and freeze, fans for enhancing air flow speed and an external steam heat supply structure are arranged around the vaporizer, air flow at the position of the vaporizer is improved, the temperature around the vaporizer is improved through output steam, the frost and icing phenomena of the fins of the vaporizer are reduced, and the vaporization efficiency is guaranteed.
(2) According to the difference of vaporizer output end temperature, select the mode that promotes vaporizer position heat exchange effect, can promote air velocity strip heat exchange efficiency through the fan, also can improve heat exchange efficiency to the vaporizer position through output steam to reduce the vaporizer frost, freeze the scheduling problem, and then prevent the pipeline frost crack production incident.
(3) The fans are arranged in pairs, and the wind field at the position of the vaporizer is changed by adjusting the wind direction of the fans, so that the distribution state of the fins is adapted, and the efficiency of the fans for pushing airflow and the heat exchange of the fins is improved.
(4) Set up a plurality of trompils on the steam pipeline for the position of steam pipeline output steam disperses, improves the coverage of steam, increases the scope that can carry out the fin of heat exchange with steam, further improves heat exchange efficiency, thereby improves vaporization efficiency.
Drawings
The accompanying drawings, which form a part of the specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without unduly limiting the scope of the invention.
Fig. 1 is a schematic structural view of an air-temperature vaporizing system for low-temperature liquid according to embodiment 1 of the present invention.
In the figure, 1 is a liquid storage tank, 2 is a vaporizer, 3 is a pump, 4 is a fan, and 5 is a steam valve.
Detailed Description
Example 1
In a typical embodiment of the present invention, as shown in fig. 1, an air-temperature vaporization system for cryogenic liquid is provided.
The low-temperature liquid air-temperature type vaporization system shown in fig. 1 is used for vaporizing and outputting low-temperature liquid, a fan 4 and a steam pipeline are configured on a vaporizer 2 of a low-temperature liquid air-cooling type vaporization system, the fan 4 for enhancing the air flow speed and an additional steam heat supply structure are arranged around the vaporizer 2, the air flow at the position of the vaporizer 2 is improved, the temperature around the vaporizer 2 is improved through output steam, the phenomena of frosting and icing of fins of the vaporizer 2 are reduced, and the vaporization efficiency is ensured.
Specifically, as shown in fig. 1, the vaporizer comprises a vaporizer 2 and a vapor pipeline, wherein an inlet end of the vaporizer 2 is connected with a liquid storage tank 1 through a pump 3, an outlet end of the vaporizer is connected with an output valve, an upstream pipeline and a downstream pipeline of the vaporizer 2 are respectively provided with a pressure gauge, and the pressure gauges are connected to a pipeline communicated with the vaporizer 2 through a pressure sampling pipe.
The side of the vaporizer 2 is provided with at least two groups of fans 4, the acting area of each fan 4 covers the vaporizer 2, one end of each steam pipeline is opened towards the vaporizer 2, and the other end of each steam pipeline is connected with a steam valve 5 in series and then is used for being connected with a steam source.
In this embodiment, the liquid storage tank 1 is a cryogenic liquid storage tank 1, the pump 3 is a cryogenic liquid pump, and the vaporizer 2 is a high-efficiency air-temperature vaporizer 2, and a cryogenic valve, a pressure gauge and a thermometer are used in cooperation with the vaporizer.
As shown in fig. 1, the cryogenic liquid storage tank 1 may be a vacuum storage tank or a normal pressure heat insulation storage tank, a liquid outlet pipe interface and a return pipe interface are arranged on the liquid storage tank 1, and stainless steel valves are respectively arranged on the liquid outlet pipe interface and the return pipe interface to adapt to the cryogenic liquid output by the cryogenic liquid storage tank 1.
The low-temperature liquid pump can be determined as a piston type liquid pump or a centrifugal type liquid pump according to the use pressure and flow of a subsequent user. The low-temperature valve is made of different materials according to different properties of low-temperature liquid.
The fan 4 is arranged around the vaporizer 2 to form a forced convection device, the steam pipeline is arranged around the vaporizer 2 to form a steam auxiliary distribution heating device, and the vaporizer 2, the fan 4 and the steam pipeline together form a vaporization assembly.
The vaporizer 2 comprises a vaporizing pipeline and fins arranged along the vaporizing pipeline, one end of the vaporizing pipeline is opened towards the fins so as to output steam to carry out heat exchange with the fins; meanwhile, the vaporization pipeline is provided with a plurality of fins, flow channels are formed between adjacent fins, and the direction of airflow generated by the fan 4 is parallel or collinear with the axial direction of the flow channels, so that the convection effect is improved, and the heat exchange efficiency is ensured.
Meanwhile, the steam pipeline is provided with a plurality of openings, and the openings correspond to the distribution positions of the fins so as to output steam to act on the fins and the vaporization pipeline; the steam pipeline wraps up the heat preservation outward, and the steam pipeline delivery outlet is dodged to the heat preservation.
The openings in the steam pipe are distributed along the axial direction, and a plurality of openings can be arranged in the circumferential direction at the same axial position.
It can be understood that the fan 4 may be an axial flow fan, and a control module of the axial flow fan is connected to the controller; the steam pipeline can also be provided with a plurality of branch pipes, the distribution area range of the branch pipes is increased, and the heat exchange effect with the fins is improved.
In this embodiment, the branch pipes of the steam pipeline, the steam valve 5 and the steam pipeline may be made of carbon steel. Simultaneously, the steam pipeline wraps up outward has the heat preservation, and rock wool tube shell can be chooseed for use to the heat preservation, and the steam pipeline delivery outlet is dodged to the heat preservation.
Set up a plurality of trompils on the steam pipeline for the position of steam pipeline output steam disperses, improves the coverage of steam, increases the scope that can carry out the fin of heat exchange with steam, further improves heat exchange efficiency, thereby improves vaporization efficiency.
The pressure gauge has the functions of on-site display and data remote transmission, and the pressure sampling pipe is made of stainless steel; the outlet end of the output valve is provided with a thermometer which has the functions of local display and data remote transmission.
Meanwhile, the thermometer is connected with a controller, and the controller is used for controlling the opening of the output valve and the working start and stop of the vaporizer 2; it should be noted that the safety protection system can monitor the temperature of the output valve position of the outlet of the vaporizer 2, and when the gas temperature of the output of the vaporizer 2 is lower than a certain value, for example, 10 degrees celsius below zero, the blower 4 corresponding to the forced convection device is automatically activated to increase the air flow rate around the vaporizer 2.
If the outlet temperature continues to decrease and reaches a set value, for example, 15 ℃ below zero, the controller controls the steam valve 5 to open, and the steam pipeline corresponding to the steam auxiliary distributed heating device runs.
If the outlet temperature is further reduced, when the outlet temperature reaches an interlocking shutdown set value, for example, 20 ℃ below zero, the low-temperature liquid pump is automatically shut down in an interlocking manner in order to prevent the safety production accident of frost cracking of the pipeline.
It can be understood that the above setting value can be adjusted according to the vaporization process requirements of different cryogenic liquids, for example, the setting temperature is increased or decreased, and the temperature requirement of the output gas after vaporization can be met.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The air-temperature type vaporization system for the low-temperature liquid is characterized by comprising a vaporizer and a steam pipeline, wherein the inlet end of the vaporizer is connected with a liquid storage tank, and the outlet end of the vaporizer is connected with an output valve; the side surface of the vaporizer is provided with at least two groups of fans, the vaporizer is covered with the action area of the fans, one end of the steam pipeline is opened towards the vaporizer, and the other end of the steam pipeline is connected with a steam valve in series and then is used for connecting a steam source.
2. The air-cooled vaporization system of claim 1, wherein the vaporizer comprises a vaporization tube and fins disposed along the vaporization tube, the vaporization tube having an end opening toward the fins for outputting the vapor in heat exchange relationship with the fins.
3. The air-temperature vaporization system of cryogenic liquid according to claim 2, wherein the vaporization pipe is provided with a plurality of fins, flow channels are formed between adjacent fins, and the direction of the air flow generated by the fan is parallel to or collinear with the axial direction of the flow channels.
4. An air-temperature vaporization system of cryogenic liquid according to claim 2 or claim 3 wherein the vapor line is provided with a plurality of openings corresponding to the location of the fins to output vapor to the fins and the vaporization line.
5. The air-heated cryogenic liquid vaporization system of claim 1, wherein the steam line is surrounded by an insulation layer that is kept out of the steam line outlet.
6. An air-temperature vaporization system of cryogenic liquid according to claim 1 wherein all fans are evenly distributed circumferentially around the vaporizer, each set of two fans, and the vaporizer is located on a line connecting the fans of the same set.
7. An air-temperature vaporization system of a cryogenic liquid according to claim 1, wherein a pump is provided between the vaporizer and the liquid reservoir, and a flow valve is provided between the pump and the liquid reservoir.
8. The air-temperature vaporization system of cryogenic liquid according to claim 1, wherein pressure gauges are respectively disposed upstream and downstream of the vaporizer, and the pressure gauges are connected to a pipeline communicated with the vaporizer through pressure sampling pipes.
9. An air-temperature vaporization system of cryogenic liquid according to claim 1, wherein the outlet end of said outlet valve is provided with a thermometer.
10. The air-temperature vaporization system of claim 9, wherein the thermometer is connected to a controller, and the controller is configured to control the opening of the output valve and the start-stop of the vaporizer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220591699.3U CN217082170U (en) | 2022-03-17 | 2022-03-17 | Low-temperature liquid air-temperature type vaporization system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220591699.3U CN217082170U (en) | 2022-03-17 | 2022-03-17 | Low-temperature liquid air-temperature type vaporization system |
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| Publication Number | Publication Date |
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| CN217082170U true CN217082170U (en) | 2022-07-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202220591699.3U Active CN217082170U (en) | 2022-03-17 | 2022-03-17 | Low-temperature liquid air-temperature type vaporization system |
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| CN (1) | CN217082170U (en) |
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- 2022-03-17 CN CN202220591699.3U patent/CN217082170U/en active Active
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