CN218936808U - Discharge device for air separation low-temperature liquid - Google Patents
Discharge device for air separation low-temperature liquid Download PDFInfo
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- CN218936808U CN218936808U CN202320052100.3U CN202320052100U CN218936808U CN 218936808 U CN218936808 U CN 218936808U CN 202320052100 U CN202320052100 U CN 202320052100U CN 218936808 U CN218936808 U CN 218936808U
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Abstract
The utility model discloses a discharge device for air separation low-temperature liquid, which aims to solve the problems that a large amount of electric energy is required to be consumed in the running process of the existing device for discharging main cold liquid oxygen in air separation and the heating efficiency is low; the device comprises a support assembly, a heat exchange assembly and an air exchange assembly, wherein the heat exchange assembly and the air exchange assembly are arranged on the support assembly; the heat exchange assembly comprises a flow pipeline, heat exchange fins, a heat exchange pipe and a connecting piece, wherein the heat exchange fins are fixedly arranged on the heat exchange pipe and form a heat dissipation unit, the flow pipeline is arranged in the heat exchange pipe and is attached to the inner wall of the heat exchange pipe, one end of the flow pipeline is provided with a liquid inlet, and the other end of the flow pipeline is provided with an air outlet. The fin heat exchange tubes are large in interval, the air circulation rate and the contact area between the fin heat exchange tubes and the air are increased, the low-temperature liquid can be heated through the air, and compared with the electric heating direction, the electric power consumption is greatly reduced, so that the purposes of energy conservation and environmental protection are achieved.
Description
Technical Field
The utility model relates to the technical field of low-temperature liquid discharge in air separation, in particular to a discharge device for the low-temperature liquid in the air separation.
Background
With the rapid development of industrial technology in China, industrial gases such as oxygen, nitrogen, argon and the like are taken as essential important raw materials for modern industrial production, and are widely applied to industries such as petroleum, chemical industry, metallurgy, machinery, electronics and the like. The improvement of scientific technology makes the production scale of enterprises in various industries continuously improved and the demand of industrial gas also increased. At present, industrial enterprises at home and abroad adopt a cryogenic method to realize air separation, and industrial gas is prepared to meet the production requirement. The stable operation of the air separation oxygen plant is significant in relation to the product quality of enterprises, the production safety of factories and the overall economic benefit.
When the air-partitioned main cold box internal rectifying tower, a liquid oxygen pump, a liquid nitrogen pump, a liquid argon pump, a rare cold box internal rectifying tower, low-temperature pouring area equipment and the like are operated, the liquid purity does not reach the standard, and part of low-temperature liquid is required to be discharged; when the air separation unit is parked for maintenance, a large amount of low-temperature liquid stored in the equipment is required to be discharged. The absolute temperature of the low-temperature liquid is about-196 ℃, and the low-temperature liquid mainly comprises liquid oxygen, liquid nitrogen and liquid argon, wherein the liquid oxygen content accounts for about 90 percent. Because the temperature of the low-temperature liquid is extremely low, if the low-temperature liquid cannot be properly treated, great harm is brought to equipment, civil foundation, surrounding environment and personnel nearby an emission source; if the low-temperature liquid with higher liquid oxygen content is discharged freely and automatically flows to a trench, the potential safety hazard is brought, the production safety of the whole factory is influenced, and even the life is endangered.
Application number: the comparison document of CN202021310137.4 discloses a device for discharging main cold liquid oxygen in air separation, and relates to the technical field of liquid oxygen discharge. The utility model comprises a heating box, wherein two shells are welded at the top of the heating box, electric heating lamps are fixed in the two shells, a connecting plate is welded at the bottom of the shells and at the bottom of the electric heating lamps, two heating fans are fixed in the connecting plate, a signal controller is welded at the top of the heating box and at one end of the shells, a stainless steel pipeline is arranged in the heating box, an air bath gasifier is arranged at one side of the stainless steel pipeline, and a temperature sensor is fixed at one side of the heating box.
The device that main cold liquid oxygen was discharged in the current air separation can be known from the above through the mutual cooperation between electric heat lamp, heating fan and temperature sensor for the device can effectively control the temperature of the interior oxygen of stainless steel pipeline, and through the mutual cooperation between empty bath formula gasifier and the low temperature liquid metal collapsible tube, makes the device can gasify liquid oxygen, simultaneously through the setting of low temperature liquid stop valve, makes the safer operation of device.
However, the electric heating lamp, the heating fan, the temperature sensor and other devices need to consume a large amount of electric energy in the operation process, and meanwhile, the space between the space-time bath type gasifier fin heat exchange tubes is small, the air fluidity is poor, and the heat exchange efficiency is low. Therefore, there is a need for an improvement in such a structure to overcome the above-mentioned drawbacks.
Disclosure of Invention
The utility model aims to provide a discharge device for air separation low-temperature liquid, which is used for solving the problems that a large amount of electric energy is required to be consumed in the operation process and the heating efficiency is low in the conventional device for discharging main cold liquid oxygen in air separation.
The technical aim of the utility model is realized by the following technical scheme:
the device for discharging the air separation cryogenic liquid comprises a supporting component, and further comprises a heat exchange component and an air exchange component which are arranged on the supporting component;
the heat exchange assembly comprises a flow pipeline, heat exchange fins, a heat exchange pipe and a connecting piece, wherein a plurality of heat exchange fins are fixedly arranged on the heat exchange pipe and form a heat dissipation unit, the heat dissipation units are fixedly connected through the connecting piece, the flow pipeline is arranged in the heat exchange pipe, the flow pipeline is attached to the inner wall of the heat exchange pipe, one end of the flow pipeline is provided with a liquid inlet, and the other end of the flow pipeline is provided with an air outlet.
The utility model is further provided with: the support assembly is used for supporting the heat exchange assembly and the air exchange assembly and comprises a base, support columns and a mounting frame, wherein a plurality of support columns are arranged on the lower surface of the base, and the mounting frame is arranged on the base.
The utility model is further provided with: the heat exchange fins are rectangular and made of aluminum alloy, and are welded on the outer wall of the heat exchange tube, and each eight heat exchange fins and one heat exchange tube form a heat dissipation unit.
The utility model is further provided with: the heat exchange tube is cylindrical, a through hole for accommodating the flow pipeline is formed in the center of the heat exchange tube, and the heat exchange tube is made of aluminum alloy.
The utility model is further provided with: the air exchange assembly comprises an air exchange fan, a connecting pipe and an air exchange box body, wherein an air storage cavity is formed in the air exchange box body, the bottom of the air exchange box body is connected with the output end of the air exchange fan through the connecting pipe, a plurality of air holes are formed in the side wall of the air exchange box body, and the air holes are communicated with the air storage cavity.
The utility model is further provided with: the connecting piece includes rectangle connecting portion, connecting piece, the quantity of connecting piece is four, and a plurality of connecting piece slope is installed on four corners of rectangle connecting portion.
Compared with the prior art, the utility model has the following beneficial effects:
1. the utility model is provided with an air exchange component which comprises an air exchange fan, a connecting pipe and an air exchange box body, wherein the bottom of the air exchange box body is connected with the output end of the air exchange fan through the connecting pipe, a plurality of air holes are formed in the side wall of the air exchange box body, the air flow of the air exchange fan is started to enter the air exchange box body through the connecting pipe, and then the air flow is sprayed out of the air holes to drive the air around the heat exchange component to flow, so that the heat exchange efficiency is improved.
2. The fin heat exchange tubes are provided with larger intervals, so that the air circulation rate between the fin heat exchange tubes and the contact area between the fin heat exchange tubes and the air are increased, low-temperature liquid can be heated through air, and compared with the traditional electric heating direction, the electric power consumption is greatly reduced, and the purposes of energy conservation and environmental protection are achieved.
Drawings
Fig. 1 is a schematic perspective view of the present utility model.
Fig. 2 is a rear view of the present utility model.
Fig. 3 is a side view of the present utility model.
Fig. 4 is a bottom view of the present utility model.
Number labels: base 1, support column 2, mounting bracket 3, flow pipeline 4, heat exchange fin 5, heat exchange tube 6, connecting piece 7, liquid inlet 8, gas outlet 9, air exchange fan 10, connecting pipe 11, air exchange box 12
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. It will be apparent that the described embodiments are some, but not all, embodiments of the utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in fig. 1 to 4, the present utility model provides a device for discharging air-separated cryogenic liquid, comprising a support assembly, and a heat exchange assembly and an air exchange assembly disposed on the support assembly;
the support assembly is used for supporting the heat exchange assembly and the air exchange assembly and comprises a base 1, support columns 2 and a mounting frame 3, wherein a plurality of support columns 2 are arranged on the lower surface of the base 1, and the mounting frame 3 is arranged on the base 1.
The heat exchange assembly is used for carrying out heat exchange to transfer heat to low-temperature liquid and comprises a circulation pipeline 4, heat exchange fins 5, heat exchange pipes 6 and connecting pieces 7, wherein the heat exchange pipes 6 are cylindrical, through holes for accommodating the circulation pipeline are formed in the heat exchange pipes 6, the heat exchange fins 5 are rectangular and are made of aluminum alloy, eight heat exchange fins 5 are welded on the outer wall of each heat exchange pipe 6, each eight heat exchange fins 5 and one heat exchange pipe 6 form a heat dissipation unit, the heat dissipation units are fixedly connected through the connecting pieces 7, each connecting piece 7 comprises a rectangular connecting part and connecting pieces, the number of the connecting pieces is four, a plurality of connecting pieces are obliquely arranged on four corners of the rectangular connecting part, the circulation pipeline 4 is arranged in the heat exchange pipe 6, the circulation pipeline 4 is attached to the inner wall of the heat exchange pipe 6, one end of the circulation pipeline 4 is provided with a liquid inlet 8, and the other end of the circulation pipeline 4 is provided with an air outlet 9; during the use, low temperature liquid is followed the inlet and is let into the flow channel 4, along the in-process that flow channel 4 flows, and heat in the air is passed through heat exchange fin 5 and is transmitted heat exchange tube 6, and then heats the low temperature liquid in the flow channel 4 until the liquid gasification, in this embodiment, is provided with sixty four heat radiating element altogether, and wherein eight heat radiating element installs in the inside of air exchange box, and the distribution of remaining fifty-six heat radiating element is in the outside of air exchange box, compare the space between the heat exchanging element great with current heat exchanging element, be provided with the air exchanging element in the space, can improve the heating mobility, reach better heating effect.
The air exchange assembly is used for improving the air flow rate around the heat exchange assembly and further improving the heat exchange efficiency, and comprises an air exchange fan 10, a connecting pipe 11 and an air exchange box 12, wherein the bottom of the air exchange box 12 is connected with the output end of the air exchange fan 10 through the connecting pipe 11, a plurality of air holes (not shown in the figure) are formed in the side wall of the air exchange box 12, and when the air exchange assembly is used, the air flow of the air exchange fan 10 is started to enter the air exchange box 12 through the connecting pipe, then the air is sprayed out of the air holes to drive the air around the heat exchange assembly to flow, and the heat exchange efficiency is improved.
The application process and principle of the utility model are as follows: when the air exchange device is used, low-temperature liquid is pumped into the flow pipeline 4 through the liquid inlet 8, meanwhile, the air flow of the exchange fan 10 is started to enter the air exchange box body 12 through the connecting pipe, then the air is sprayed out of the air holes to drive air around the heat exchange assembly to flow, the heat exchange efficiency is improved, heat in the air is transferred to the heat exchange pipe 6 through the heat exchange fins 5 in the flowing process of the flow pipeline 4, and then the low-temperature liquid in the flow pipeline 4 is heated until the liquid is gasified, and then the liquid is discharged from the air outlet 9.
In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "upper", "lower", "inner", "outer", "left", "right", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in place when the inventive product is used, or are directions or positional relationships conventionally understood by those skilled in the art, are merely for convenience of describing the present utility model and for simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance. In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, terms such as "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances. In this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a list of elements is included, and may include other elements not expressly listed.
The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (6)
1. The device for discharging the air separation cryogenic liquid comprises a supporting component and is characterized by also comprising a heat exchange component and an air exchange component which are arranged on the supporting component;
the heat exchange assembly comprises a flow pipeline, heat exchange fins, a heat exchange pipe and a connecting piece, wherein a plurality of heat exchange fins are fixedly arranged on the heat exchange pipe and form a heat dissipation unit, the heat dissipation units are fixedly connected through the connecting piece, the flow pipeline is arranged in the heat exchange pipe, the flow pipeline is attached to the inner wall of the heat exchange pipe, one end of the flow pipeline is provided with a liquid inlet, and the other end of the flow pipeline is provided with an air outlet.
2. The apparatus of claim 1, wherein the support assembly is configured to support the heat exchange assembly and the air exchange assembly, and comprises a base, support columns, and a mounting frame, wherein a plurality of support columns are disposed on a lower surface of the base, and the mounting frame is disposed on the base.
3. A discharge apparatus for air separation cryogenic liquid according to claim 1, wherein the heat exchange fins are rectangular and made of aluminum alloy, and the heat exchange fins are welded to the outer walls of the heat exchange tubes, and each eight heat exchange fins and one heat exchange tube constitute a heat radiating unit.
4. The apparatus according to claim 1, wherein the heat exchanging tube is cylindrical, a through hole for accommodating the flow-through pipe is formed in the center of the heat exchanging tube, and the heat exchanging tube is made of aluminum alloy.
5. The device for discharging air-separated cryogenic liquid according to claim 1, wherein the air exchange assembly comprises an air exchange fan, a connecting pipe and an air exchange box body, an air storage cavity is formed in the air exchange box body, the bottom of the air exchange box body is connected with the output end of the air exchange fan through the connecting pipe, a plurality of air holes are formed in the side wall of the air exchange box body, and the air holes are communicated with the air storage cavity.
6. The apparatus according to claim 1, wherein the connection member comprises a rectangular connection portion, and a number of connection members is four, and a plurality of connection members are obliquely installed at four corners of the rectangular connection portion.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223004485 | 2022-11-11 | ||
| CN2022230044850 | 2022-11-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218936808U true CN218936808U (en) | 2023-04-28 |
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ID=86092956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320052100.3U Active CN218936808U (en) | 2022-11-11 | 2023-01-09 | Discharge device for air separation low-temperature liquid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218936808U (en) |
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2023
- 2023-01-09 CN CN202320052100.3U patent/CN218936808U/en active Active
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