Low-resistance replacement purging equipment for pipeline of liquefying device

Abstract

The utility model relates to the technical field of pipeline purging, in particular to low-resistance replacement purging equipment for a liquefying device pipeline. According to the technical scheme, the device comprises a first box body, a bearing base, a second box body and an air storage tank, wherein the first box body and the second box body are installed on the top end face of the bearing base; a mounting base is welded to the top end face of the bearing base, and an air storage tank is mounted in the mounting base. A second air inlet pipe is fixedly embedded into the side end face of the air storage tank, the end, away from the air storage tank, of the second air inlet pipe is fixedly embedded into the second box body, and a valve is installed on the second air inlet pipe through a flange plate. An air pump is installed on the side end face of the first box body, and an electric heating pipe is installed in the first box body. A filter element is mounted in the box body II through a sliding chute plate; an air inlet pipe I is fixedly embedded into the side end surface of the box body I; a discharge pipe is fixedly embedded into the front end face of the second box body. According to the pipeline purging device, pipeline purging is met, the interior of the pipeline is dried while purging is conducted, and the situation that actual use is affected by single purging is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline purging, in particular to low-resistance replacement purging equipment for pipelines of liquefaction devices. Background Art

[0002] Liquefaction refers to the process of a substance changing from a gas to a liquid state, which will release heat to the outside world. There are two ways to achieve liquefaction: one is to lower the temperature, and the other is to compress the volume. The critical temperature is the highest temperature at which a gas can be liquefied. Since the volume of a gas usually becomes a few thousandth of its original size after liquefaction, it is convenient for storage and transportation. Therefore, some gases are usually liquefied in reality. Since the critical points of these two gases are relatively high, they can be turned into liquids by pressurizing at room temperature. The critical points of other gases, such as hydrogen and nitrogen, are very low, and they must be deeply cooled while being pressurized, which is called liquefaction.

[0003] When transporting materials, liquefied pipelines can be easily stored and transported. However, after use, a large amount of impurities will accumulate in the pipelines, which need to be removed. However, liquefied pipelines mostly use conventional air intake purge, but liquefied pipelines accumulate carbon dioxide and water in long-term operation, which are not single impurities, so complete purge is also required. Utility Model Content

[0004] The utility model aims to provide a low-resistance replacement and purging device for the pipeline of a liquefaction device, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above purpose, the utility model provides the following technical solutions: a low-resistance replacement and purging device for the pipeline of a liquefaction device, comprising a box body 1, a bearing base, a box body 2 and a gas storage tank,

[0006] The top surface of the bearing base is provided with a box body 1 and a box body 2;

[0007] A mounting seat is welded to the top surface of the bearing base, and a gas storage tank is installed in the mounting seat;

[0008] The side end surface of the gas storage tank is embedded with an air intake pipe 2, one end of the air intake pipe 2 facing away from the gas storage tank is embedded and fixed in the box body 2, and a valve is installed on the air intake pipe 2 through a flange;

[0009] An air pump is installed on the side end surface of the box body 1, and an electric heating pipe is installed in the box body 1;

[0010] A filter element is installed in the second box body through a slide plate;

[0011] An air intake pipe 1 is embedded and fixed on the side end surface of the box body 1;

[0012] A discharge pipe is embedded and fixed on the front end surface of the second box body.

[0013] Preferably, a cover plate is provided on the top surface of the second box body, a bolt is threadedly installed in the cover plate, and the bolt is threadedly installed in the second box body. The cover plate can be installed on the second box body by the bolt, and after installation, the bolt can be reversed for disassembly so that the cover plate can be removed.

[0014] Preferably, the bottom end surface of the bearing base is equipped with universal wheels, and there are four universal wheels in total, and the four universal wheels are distributed in a rectangular array relative to the bearing base. The bottom end surface of the bearing base is equipped with universal wheels, so that the bearing base can be pushed to a designated use position.

[0015] Preferably, one end of the gas storage tank away from the second inlet pipe is embedded and fixed in the gas filling pipe, the gas filling pipe is connected to the gas storage tank, and a valve is installed on the gas filling pipe through a flange. The gas filling pipe is connected to the gas storage tank, so that the gas storage tank can be connected to an external pipeline to fill the pipeline with purge gas.

[0016] Preferably, the air pump is provided with an air extraction pipe 1 and an air extraction pipe 2, and the end of the air extraction pipe 2 facing away from the air pump is embedded and fixed in the box body 1. By embedding and fixing the end of the air extraction pipe 2 facing away from the air pump in the box body 1, the air pump extracts external air through the air extraction pipe 1 and injects it into the box body 1 through the air extraction pipe 2.

[0017] Preferably, the end of the air inlet pipe 1 facing away from the box body 1 is embedded and fixed in the box body 2, and a valve is installed on the air inlet pipe 1 through a flange. By embedding and fixing the end of the air inlet pipe 1 facing away from the box body 1 in the box body 2, the gas entering the box body 2 can be heated by the preset heating temperature of the electric heating tube and then injected into the box body 2 from the air inlet pipe 1.

[0018] Preferably, a bracket is welded on the top surface of the bearing base, and the bracket supports the discharge pipe. The discharge pipe can be placed and hung through the bracket.

[0019] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0020] 1. The utility model sets a second box body. When personnel perform low-resistance replacement cleaning on the pipeline of the liquefaction device, they can open the valve on the second air inlet pipe to inject the replacement cleaning gas stored in the gas storage tank into the second box body. During the injection, the personnel can connect the discharge pipe with the pipeline of the liquefaction device, so that the gas passes through the filter element in the second box body for re-filtration and then is injected into the discharge pipe to enter the pipeline of the liquefaction device for low-resistance replacement cleaning. The re-filtration can prevent impurities from entering the liquefaction device, thereby satisfying the low-resistance replacement cleaning.

[0021] 2. The utility model sets up a box body 1. When personnel perform low-resistance replacement cleaning on the pipeline of the liquefaction device, they blow the gas in the gas tank and then embed and fix it in the box body 1 through the end of the exhaust pipe 2 facing away from the air pump, so that the air pump draws external gas through the exhaust pipe 1 and injects it into the box body 1 through the exhaust pipe 2. During the injection, the end of the intake pipe 1 facing away from the box body 1 is embedded and fixed in the box body 2, so that the gas entering the box body 2 can be heated by the preset heating temperature of the electric heating tube and then injected into the box body 2 from the intake pipe 1. After the gas is heated, it enters the box body 2 and is filtered again through the filter element. After that, it is injected into the discharge pipe and enters the pipeline of the liquefaction device for low-resistance replacement blowing, so that the pipeline of the liquefaction device is heated and dried by the heated gas, avoiding water vapor remaining in the pipeline due to a single blow. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0023] Figure 2 It is a rear view structural schematic diagram of the utility model;

[0024] Figure 3 It is a schematic diagram of the top view structure of the utility model;

[0025] Figure 4 It is a schematic diagram of the cross-sectional structure of box body 1 and box body 2 of the utility model.

[0026] In the figure: 1. Box body 1; 2. Inlet pipe 1; 3. Load-bearing base; 4. Bracket; 5. Box body 2; 6. Inlet pipe 2; 7. Mounting seat; 8. Universal wheel; 9. Gas filling pipe; 10. Gas storage tank; 11. Cover plate; 12. Bolt; 13. Discharge pipe; 14. Exhaust pipe 1; 15. Exhaust pipe 2; 16. Air pump; 17. Slide plate; 18. Filter element; 19. Electric heating tube. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] Embodiment 1

[0029] like Figure 1-Figure 4 As shown, the utility model provides a low-resistance replacement and purging device for the pipeline of a liquefaction device, comprising a box body 1, a bearing base 3, a box body 5 and a gas storage tank 10.

[0030] The top surface of the bearing base 3 is installed with a box body 1 and a box body 2 5;

[0031] A mounting seat 7 is welded to the top surface of the bearing base 3, and a gas storage tank 10 is installed in the mounting seat 7;

[0032] An air intake pipe 2 6 is embedded and fixed to the side end surface of the air storage tank 10, and one end of the air intake pipe 2 6 away from the air storage tank 10 is embedded and fixed in the box body 2 5, and a valve is installed on the air intake pipe 2 6 through a flange;

[0033] An air pump 16 is installed on the side end surface of the box body 1, and an electric heating pipe 19 is installed in the box body 1;

[0034] A filter element 18 is installed in the box body 5 through a slide plate 17;

[0035] An air intake pipe 2 is embedded and fixed on the side end surface of the box body 1;

[0036] A discharge pipe 13 is embedded and fixed in the front end surface of the second box body 5.

[0037] A cover plate 11 is provided on the top surface of the box body 2 5, and bolts 12 are installed in the cover plate 11 through threads, and the bolts 12 are installed in the box body 2 5 through threads. The cover plate 11 can be installed on the box body 2 5 through the bolts 12. After installation, the bolts 12 can be reversed for disassembly so that the cover plate 11 can be removed, and sealing gaskets can be installed on the cover plate 11 and the box body 2 5 for cooperative sealing.

[0038] The bottom end surface of the supporting base 3 is equipped with universal wheels 8, and there are four universal wheels 8 in total. The four universal wheels 8 are distributed in a rectangular array relative to the supporting base 3. The universal wheels 8 are installed on the bottom end surface of the supporting base 3, so that the supporting base 3 can be pushed to the designated use position.

[0039] One end of the gas tank 10 facing away from the air inlet pipe 26 is embedded and fixed in the gas filling pipe 9, the gas filling pipe 9 is connected to the gas tank 10, and a valve is installed on the gas filling pipe 9 through a flange. The gas filling pipe 9 is connected to the gas tank 10, so that the gas tank 10 can be connected to an external pipeline to fill the pipeline with purge gas, and after filling, it can be closed by the valve, and the purge gas can be selected according to the needs of the actual liquefaction device using medium-pressure nitrogen or liquefied oxygen.

[0040] Based on Example 1: When personnel perform low-resistance replacement cleaning on the pipeline of the liquefaction device, they can open the valve on the air inlet pipe 6 to inject the replacement cleaning gas stored in the gas storage tank 10 into the box body 5. During the injection, the personnel can connect the discharge pipe 13 to the pipeline of the liquefaction device, so that the gas passes through the filter element 18 in the box body 5 for re-filtration and then is injected into the discharge pipe 13 to enter the pipeline of the liquefaction device for low-resistance replacement cleaning, and prevent impurities from entering the liquefaction device through re-filtration.

[0041] Embodiment 2

[0042] like Figure 1-Figure 4 As shown, the utility model provides a low-resistance replacement and purging device for the pipeline of a liquefaction device. Compared with the first embodiment, the present embodiment further includes: a box body 1, a bearing base 3, a box body 2 5 and a gas storage tank 10.

[0043] The top surface of the bearing base 3 is installed with a box body 1 and a box body 2 5;

[0044] A mounting seat 7 is welded to the top surface of the bearing base 3, and a gas storage tank 10 is installed in the mounting seat 7;

[0045] An air intake pipe 2 6 is embedded and fixed to the side end surface of the air storage tank 10, and one end of the air intake pipe 2 6 away from the air storage tank 10 is embedded and fixed in the box body 2 5, and a valve is installed on the air intake pipe 2 6 through a flange;

[0046] An air pump 16 is installed on the side end surface of the box body 1, and an electric heating pipe 19 is installed in the box body 1;

[0047] A filter element 18 is installed in the box body 5 through a slide plate 17;

[0048] An air intake pipe 2 is embedded and fixed on the side end surface of the box body 1;

[0049] A discharge pipe 13 is embedded and fixed in the front end surface of the second box body 5.

[0050] The air pump 16 is provided with an exhaust pipe 14 and an exhaust pipe 2 15, and the end of the exhaust pipe 2 15 facing away from the air pump 16 is embedded and fixed in the box body 1, so that the air pump 16 draws external air through the exhaust pipe 14 and injects it into the box body 1 through the exhaust pipe 2 15.

[0051] The end of the air intake pipe 2 facing away from the box body 1 is embedded and fixed in the box body 5, and a valve is installed on the air intake pipe 2 through a flange. The end of the air intake pipe 2 facing away from the box body 1 is embedded and fixed in the box body 5, so that the gas entering the box body 5 can be heated by the preset heating temperature of the electric heating tube 19 and then injected into the box body 5 from the air intake pipe 2, and the gas can be controlled by the valve on the air intake pipe 2 when it enters or is not in use.

[0052] A bracket 4 is welded to the top surface of the bearing base 3 , and the bracket 4 supports the discharge pipe 13 , and the discharge pipe 13 can be placed and hung through the bracket 4 .

[0053] Based on Example 2: When personnel perform low-resistance replacement cleaning on the pipeline of the liquefaction device, after blowing through the gas in the gas storage tank 10, the end of the exhaust pipe 15 facing away from the air pump 16 is embedded and fixed in the box body 1, so that the air pump 16 draws external gas through the exhaust pipe 14 and injects it into the box body 1 through the exhaust pipe 15. During the injection, the end of the intake pipe 2 facing away from the box body 1 is embedded and fixed in the box body 5, so that the gas entering the box body 5 can be heated by the preset heating temperature of the electric heating tube 19 and then injected into the box body 5 from the intake pipe 2. After the gas is heated, it enters the box body 5, is filtered again by the filter element 18, and is injected into the discharge pipe 13 and enters the pipeline of the liquefaction device for low-resistance replacement blowing, thereby heating and drying the pipeline of the liquefaction device with the heated gas.

[0054] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A low-resistance replacement and purging device for a liquefaction device pipeline, comprising a first box (1), a bearing base (3), a second box (5) and a gas storage tank (10), characterized in that: The top surface of the bearing base (3) is provided with a box body 1 (1) and a box body 2 (5); A mounting seat (7) is welded to the top end surface of the bearing base (3), and a gas storage tank (10) is installed in the mounting seat (7); An air intake pipe 2 (6) is embedded and fixed on the side end surface of the air storage tank (10), and one end of the air intake pipe 2 (6) facing away from the air storage tank (10) is embedded and fixed in the box body 2 (5), and a valve is installed on the air intake pipe 2 (6) via a flange; An air pump (16) is installed on the side end surface of the box body 1 (1), and an electric heating pipe (19) is installed inside the box body 1 (1); A filter element (18) is installed in the second box body (5) via a slide plate (17); An air intake pipe (2) is embedded and fixed on the side end surface of the box body (1); A discharge pipe (13) is embedded and fixed on the front end surface of the second box body (5).

2. A low-resistance replacement and purging device for liquefaction pipeline according to claim 1, characterized in that: The top end surface of the second box body (5) is provided with a cover plate (11), a bolt (12) is installed in the cover plate (11) through a thread, and the bolt (12) is installed in the second box body (5) through a thread.

3. The low-resistance replacement and purging equipment for liquefaction pipeline according to claim 1, characterized in that: The bottom end surface of the bearing base (3) is provided with a universal wheel (8), and there are four universal wheels (8) in total, and the four universal wheels (8) are distributed in a rectangular array relative to the bearing base (3).

4. The low-resistance replacement and purging equipment for liquefaction pipeline according to claim 1, characterized in that: One end of the gas storage tank (10) away from the second intake pipe (6) is embedded and fixed in the gas filling pipe (9), the gas filling pipe (9) is connected to the gas storage tank (10), and a valve is installed on the gas filling pipe (9) through a flange.

5. The low-resistance replacement and purging equipment for liquefaction pipeline according to claim 1, characterized in that: The air pump (16) is provided with an air extraction pipe 1 (14) and an air extraction pipe 2 (15), and one end of the air extraction pipe 2 (15) which is away from the air pump (16) is embedded and fixed in the box body 1 (1).

6. The low-resistance replacement and purging equipment for liquefaction pipeline according to claim 1, characterized in that: The end of the air inlet pipe 1 (2) facing away from the box body 1 (1) is embedded and fixed in the box body 2 (5), and a valve is installed on the air inlet pipe 1 (2) through a flange.

7. The low-resistance replacement and purging equipment for liquefaction pipeline according to claim 3, characterized in that: A bracket (4) is welded to the top end surface of the bearing base (3), and the bracket (4) supports the discharge pipe (13).

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