CN217952774U - Nitrogen compressor trouble cold box self preservation protects system - Google Patents
Nitrogen compressor trouble cold box self preservation protects system Download PDFInfo
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- CN217952774U CN217952774U CN202221635823.8U CN202221635823U CN217952774U CN 217952774 U CN217952774 U CN 217952774U CN 202221635823 U CN202221635823 U CN 202221635823U CN 217952774 U CN217952774 U CN 217952774U
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Abstract
The utility model discloses a nitrogen compressor trouble cold box self preservation protects system, including the protection subassembly, the protection subassembly includes two guide posts, fixed column, two sliders, spring, spacing ring, fixed plate, spliced pole, slip ring, plectane, contact switch, connecting pipe, baffle-box and reserve compressor; the adjacent surfaces of the two sliding blocks are symmetrically welded on the outer side wall of the sliding ring. The utility model discloses a spring promotes the slider, the slip ring drives the fixed column and is close to contact switch, along with the baffle-box internal pressure reduces gradually, contact switch is pressed to the fixed column, and then work through the reserve compressor of contact switch control, the automatic switch-over of cold source has been accomplished, can avoid the connecting pipe to be closed completely through the fixed column, it is originally internal to make original compressed nitrogen gas continue to flow into the cold box in the baffle-box, it keeps apart to have avoided interlocking cold box body after the main compressor shuts down, stop to system output product gas backward, work efficiency is improved.
Description
The technical field is as follows:
the utility model relates to a cold box protection system technical field specifically is a nitrogen compressor trouble cold box self preservation protection system.
The background art comprises the following steps:
the cold box is a group of high-efficiency, heat-insulating and cold-insulating low-temperature heat exchange equipment, is often adopted in the cryogenic separation process, for example, the cold box which works at about-140 to-100 ℃ is adopted in the cryogenic separation process of petroleum cracking gas, and consists of a high-efficiency plate heat exchanger with a compact structure and a gas-liquid separator, and compressed nitrogen is required to be provided by a nitrogen compressor as a cold source in the working process.
At present, a circulating nitrogen compressor is basically used for providing cold quantity for a cold box, however, the nitrogen compressor is easy to break down and stop when working for a long time, so that the cold source is interrupted, a cold box system is further stopped, product gas cannot be output to a rear system, and the working efficiency is seriously influenced.
The utility model has the following contents:
an object of the utility model is to provide a nitrogen compressor trouble cold box self preservation protects system to solve one of the problem that proposes in the above-mentioned background art.
The utility model discloses implement by following technical scheme: a self-protection system of a nitrogen compressor fault cold box comprises a protection assembly, wherein the protection assembly comprises two guide posts, a fixed post, two sliding blocks, a spring, a limiting ring, a fixed plate, a connecting post, a sliding ring, a circular plate, a contact switch, a connecting pipe, a buffer box and a standby compressor;
two the looks butt surface symmetric welding of slider is in the lateral wall of sliding ring, two slider difference sliding connection is in the lateral wall of guide post, the inside wall fixed connection of spacing ring is in the lateral wall of guide post, the one end fixed connection of spring is in one side of spacing ring, the other end fixed connection of spring is in one side of slider, the spring cup joints in the lateral wall of guide post, the one end of spliced pole welds in one side of fixed plate, the other end fixed connection of spliced pole is in one side of plectane, the spliced pole is located the inside of sliding ring.
As further preferable in the present technical solution: one end of the fixing column is welded on one side, far away from the spring, of the sliding ring, the contact switch is embedded on one side of the circular plate, the sliding ring is located between the fixing plate and the circular plate, and therefore the spare compressor can be controlled to work through the contact switch.
As further preferable in the present technical solution: the both ends symmetric welding of fixed plate is in the inside wall of connecting pipe, the one end fixed connection of connecting pipe in one side of baffle-box and with the baffle-box intercommunication, reserve compressor installs in the front surface of baffle-box, and then when main compressor shut down, the cold source of cold box body can be regarded as to reserve compressor.
As further preferable in the present technical solution: the outer side wall of the connecting pipe is provided with a main body assembly, and the main body assembly comprises a main compressor, a cold box body, a connecting flange and two sliding chutes;
the inside wall of flange welds in the lateral wall of connecting pipe, the connecting pipe is kept away from the one end of baffle-box and is passed through flange and install in one side of cold box body, and then can carry the nitrogen gas in the baffle-box to this internally through the connecting pipe.
As further preferable in the present technical solution: the inside wall of connecting pipe is seted up to two the spout symmetry, two the lateral wall of slider is sliding connection respectively in the inside wall of two spouts, the lateral wall sliding connection of slip ring in the inside wall of connecting pipe, and then can inject the position of slip ring.
As a further preferred aspect of the present invention: the guide post is located the inside of spout, the one end fixed connection that the spacing ring was kept away from to the guide post is in inner wall one side of spout, and then can prescribe a limit to the position of slider through the guide post.
As further preferable in the present technical solution: the circular plate is located inside the connecting pipe, the fixing column is located between the circular plate and the sliding ring, the fixing column corresponds to the contact switch in position, and the inner diameter of the sliding ring is larger than the diameter of the connecting column, so that nitrogen in the buffer box can flow into the cooling box body through the connecting pipe.
As further preferable in the present technical solution: the main compressor is installed in one side of connecting pipe is kept away from to the baffle-box, and then can be through main compressor with compressed nitrogen gas input to in the baffle-box.
The utility model has the advantages that: the utility model discloses a second cold source of reserve compressor as the cold box body, when main compressor fault shut down, the baffle-box internal pressure reduces, the spring promotes the slider, the slip ring drives the fixed column and is close to the contact switch, along with the baffle-box internal pressure reduces gradually, the contact switch is pressed to the fixed column, and then work through the contact switch control reserve compressor, the automatic switch-over of cold source has been accomplished, can avoid the connecting pipe to be closed completely through the fixed column simultaneously, it is originally internal to make original compression nitrogen gas continue to flow in the cold box in the baffle-box, it keeps apart to have avoided main compressor shut down back interlocking cold box body, stop system output product gas backward, and the work efficiency is improved.
Description of the 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 view of the present invention;
FIG. 2 is a schematic view of the buffer box of the present invention;
fig. 3 is a schematic structural view of the protection assembly of the present invention;
fig. 4 is a schematic view of the structure of the connecting pipe of the present invention.
In the figure: 101. a protection component; 11. a guide post; 12. fixing the column; 13. a slider; 14. a spring; 15. a limiting ring; 16. a fixing plate; 17. connecting columns; 18. a slip ring; 19. a circular plate; 20. a contact switch; 21. a connecting pipe; 22. a buffer tank; 23. a standby compressor; 301. a body assembly; 31. a main compressor; 32. a cold box body; 33. a connecting flange; 34. a chute.
The specific implementation mode is as follows:
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.
Examples
Referring to fig. 1-4, the present invention provides a technical solution: a nitrogen compressor fault cold box self-protection system comprises a protection assembly 101, wherein the protection assembly 101 comprises two guide columns 11, a fixing column 12, two sliding blocks 13, a spring 14, a limiting ring 15, a fixing plate 16, a connecting column 17, a sliding ring 18, a circular plate 19, a contact switch 20, a connecting pipe 21, a buffer box 22 and a standby compressor 23;
adjacent surface symmetry of two sliders 13 welds in the lateral wall of slip ring 18, two sliders 13 sliding connection respectively in the lateral wall of guide post 11, the inside wall fixed connection of spacing ring 15 in the lateral wall of guide post 11, the one end fixed connection of spring 14 in one side of spacing ring 15, the other end fixed connection of spring 14 in one side of slider 13, spring 14 cup joints in the lateral wall of guide post 11, the one end of spliced pole 17 welds in one side of fixed plate 16, the other end fixed connection of spliced pole 17 in one side of plectane 19, spliced pole 17 is located the inside of slip ring 18.
In this embodiment, specifically: one end of the fixed post 12 is welded on one side of the sliding ring 18 far away from the spring 14, the contact switch 20 is embedded on one side of the circular plate 19, the sliding ring 18 is positioned between the fixed plate 16 and the circular plate 19, and further, the fixed post 12 can be driven by the sliding ring 18 to move and press the contact switch 20, and the contact switch 20 controls the standby compressor 23 to work.
In this embodiment, specifically: both ends symmetrical weld of fixed plate 16 is in the inside wall of connecting pipe 21, the one end fixed connection of connecting pipe 21 in one side of surge-box 22 and with surge-box 22 intercommunication, reserve compressor 23 installs in the front surface of surge-box 22, and then when main compressor 31 fault shut-down, the pressure in the surge-box 22 reduces, spring 14 promotes slip ring 18, slip ring 18 promotes fixed column 12 and presses down contact switch 20, contact switch 20 controls reserve compressor 23 work, can be for cold box body 32 automatic switch cold source, it keeps apart to avoid interlocking cold box body 32 after main compressor 31 shuts down.
In this embodiment, specifically: the outer side wall of the connecting pipe 21 is provided with a main body assembly 301, and the main body assembly 301 comprises a main compressor 31, a cold box body 32, a connecting flange 33 and two sliding grooves 34;
the inside wall of connecting flange 33 welds in the lateral wall of connecting pipe 21, and the one end that connecting pipe 21 kept away from buffer box 22 passes through connecting flange 33 to be installed in one side of cold box body 32, and then can carry the nitrogen gas in buffer box 22 to in the cold box body 32 through connecting pipe 21.
In this embodiment, specifically: the inside wall of connecting pipe 21 is seted up to two spout 34 symmetries, and the lateral wall difference sliding connection of two sliders 13 is in the inside wall of two spouts 34, and the lateral wall sliding connection of slip ring 18 is in the inside wall of connecting pipe 21, and then can prescribe a limit to the position of slip ring 18, can make slip ring 18 slide in connecting pipe 21.
In this embodiment, specifically: the guide post 11 is located the inside of spout 34, and the one end fixed connection that the guide post 11 kept away from spacing ring 15 is in spout 34 inner wall one side, and then can inject the position of slider 13 through guide post 11, avoids the position of slip ring 18 to take place the skew when sliding.
In this embodiment, specifically: the circular plate 19 is positioned inside the connecting pipe 21, the fixed column 12 is positioned between the circular plate 19 and the sliding ring 18, the fixed column 12 corresponds to the contact switch 20 in position, the inner diameter of the sliding ring 18 is larger than the diameter of the connecting column 17, nitrogen in the buffer tank 22 flows into the connecting pipe 21, then flows out through a through hole in the sliding ring 18, and further flows into the cold box body 32.
In this embodiment, specifically: the main compressor 31 is installed on one side of the buffer tank 22 far away from the connecting pipe 21, so that nitrogen can be input into the buffer tank 22 through the main compressor 31 to serve as a first cold source of the cold box body 32.
In this embodiment, specifically: the electrical output end of the contact switch 20 is electrically connected to the electrical input end of the backup compressor 23 through a wire, and the electrical input end of the contact switch 20 is connected to the external commercial power for supplying power to the backup compressor 23.
Working principle or structural principle, when in use, the main compressor 31 inputs compressed nitrogen into the buffer box 22 when working, the pressure in the buffer box 22 increases, the compressed nitrogen pushes the sliding ring 18, the sliding ring 18 slides along the guide post 11 through the sliding block 13, the sliding block 13 compresses the spring 14 when moving, at this time, the compressed nitrogen in the buffer box 22 flows out through the through hole in the sliding ring 18, and then flows into the cold box body 32 through the connecting pipe 21, so that the cold box body 32 can normally work, when the main compressor 31 stops working, the pressure in the buffer box 22 decreases, the pressure applied to the sliding ring 18 decreases, so that the spring 14 pushes the sliding ring 18 to approach the circular plate 19, the sliding ring 18 drives the fixed column 12 to approach the contact switch 20 on the circular plate 19, the continuous outflow of the compressed nitrogen in the buffer box 22, the pressure in the buffer box 22 decreases, the sliding ring 18 drives the fixed column 12 to contact with the contact switch 20, the contact switch 20 controls the standby compressor 23 to work, the standby compressor 23 inputs compressed nitrogen into the sliding box 22, thereby completing the switching of the cold source, and avoiding the cold source from suddenly flowing into the buffer box body 32 when the cold source can be switched, and the cold source can be completely interrupted through the cold source switching in the buffer box body 32.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The self-protection system of the nitrogen compressor fault cold box is characterized by comprising a protection assembly (101), wherein the protection assembly (101) comprises two guide columns (11), a fixing column (12), two sliding blocks (13), a spring (14), a limiting ring (15), a fixing plate (16), a connecting column (17), a sliding ring (18), a circular plate (19), a contact switch (20), a connecting pipe (21), a buffer box (22) and a standby compressor (23);
two the looks butt welding of slider (13) is in the lateral wall of slip ring (18), two slider (13) sliding connection respectively is in the lateral wall of guide post (11), the inside wall fixed connection of spacing ring (15) is in the lateral wall of guide post (11), the one end fixed connection of spring (14) is in one side of spacing ring (15), the other end fixed connection of spring (14) is in one side of slider (13), the lateral wall in guide post (11) is cup jointed in spring (14), the one end of spliced pole (17) welds in one side of fixed plate (16), the other end fixed connection of spliced pole (17) is in one side of plectane (19), spliced pole (17) are located the inside of slip ring (18).
2. The nitrogen compressor fault cold box self-protection system of claim 1, wherein: one end of the fixed column (12) is welded on one side of a sliding ring (18) far away from the spring (14), the contact switch (20) is embedded on one side of a circular plate (19), and the sliding ring (18) is positioned between the fixed plate (16) and the circular plate (19).
3. The nitrogen compressor fault cold box self-protection system of claim 2, wherein: the both ends symmetry of fixed plate (16) welds the inside wall in connecting pipe (21), the one end fixed connection of connecting pipe (21) is in one side of buffer tank (22) and communicates with buffer tank (22), reserve compressor (23) are installed in the front surface of buffer tank (22).
4. The nitrogen compressor fault cold box self-protection system of claim 3, wherein: a main body assembly (301) is installed on the outer side wall of the connecting pipe (21), and the main body assembly (301) comprises a main compressor (31), a cold box body (32), a connecting flange (33) and two sliding grooves (34);
the inner side wall of the connecting flange (33) is welded on the outer side wall of the connecting pipe (21), and one end, far away from the buffer tank (22), of the connecting pipe (21) is installed on one side of the cold box body (32) through the connecting flange (33).
5. The nitrogen compressor fault cold box self-protection system of claim 4, wherein: two the inside wall of connecting pipe (21) is seted up to spout (34) symmetry, two the lateral wall of slider (13) sliding connection respectively in the inside wall of two spouts (34), the lateral wall sliding connection of slip ring (18) in the inside wall of connecting pipe (21).
6. The nitrogen compressor fault cold box self-protection system of claim 1, wherein: guide post (11) are located the inside of spout (34), guide post (11) are kept away from the one end fixed connection in the inner wall one side of spout (34) of spacing ring (15).
7. The nitrogen compressor fault cold box self-protection system of claim 2, wherein: the circular plate (19) is positioned inside the connecting pipe (21), the fixed column (12) is positioned between the circular plate (19) and the sliding ring (18), the fixed column (12) corresponds to the position of the contact switch (20), and the inner diameter of the sliding ring (18) is larger than the diameter of the connecting column (17).
8. The nitrogen compressor fault cold box self-protection system of claim 4, wherein: the main compressor (31) is arranged on one side of the buffer tank (22) far away from the connecting pipe (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221635823.8U CN217952774U (en) | 2022-06-28 | 2022-06-28 | Nitrogen compressor trouble cold box self preservation protects system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221635823.8U CN217952774U (en) | 2022-06-28 | 2022-06-28 | Nitrogen compressor trouble cold box self preservation protects system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217952774U true CN217952774U (en) | 2022-12-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221635823.8U Active CN217952774U (en) | 2022-06-28 | 2022-06-28 | Nitrogen compressor trouble cold box self preservation protects system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217952774U (en) |
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2022
- 2022-06-28 CN CN202221635823.8U patent/CN217952774U/en active Active
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