CN205115048U - Nitrogen gas preprocessing device - Google Patents
Nitrogen gas preprocessing device Download PDFInfo
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- CN205115048U CN205115048U CN201520928011.6U CN201520928011U CN205115048U CN 205115048 U CN205115048 U CN 205115048U CN 201520928011 U CN201520928011 U CN 201520928011U CN 205115048 U CN205115048 U CN 205115048U
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- nitrogen
- nitrogen gas
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Abstract
The utility model belongs to gaseous preliminary treatment field, concretely relates to nitrogen gas preprocessing device, including the nitrogen gas head tank of connecting in order, desicator, the deoxidation system, refined nitrogen gas storage tank, the desicator be two parallelly connected molecular sieve dewatering systems, desicator and nitrogen gas head tank between be connected with nitrogen buffer tank, deoxidation system and refined nitrogen gas storage tank between be connected with on - line measuring device, on - line measuring device and nitrogen gas head tank between be connected through the back flow, on - line measuring device and the runner pipe between the refined nitrogen gas storage tank on be connected with the evacuation pipe. Whole process is convenient direct, closes on - line measuring device and preliminary treatment process as an organic whole, has reduced the operating procedure, can improve preliminary treatment efficiency greatly to a certain extent.
Description
Technical field
The utility model belongs to gas preprocessing technical field, is specifically related to a kind of nitrogen pretreatment unit.
Background technology
Because ethylene rolymerization catalyst can not contact water and oxygen, so use a large amount of nitrogen at its process for preparation, one is the power as transferring raw material, and two use nitrogen to carry out sealing protection up for safekeeping, starvation.Polyethylene catalysts manufacturing enterprise needs to process nitrogen before use nitrogen, removes the water in nitrogen and oxygen, makes water, oxygen level all lower than 3ppm.But in the pretreated process of nitrogen, defective nitrogen may be had and flow out.The appearance of defective nitrogen not only causes the wasting of resources, also can reduce the pretreated efficiency of nitrogen.The resource waste rate and the pretreated efficiency of raising nitrogen that how to reduce nitrogen are one of current industrial difficult points.Simultaneously in nitrogen preprocessing process, whether how to detect nitrogen be qualified is also that industrial production needs one of problem considered.
Summary of the invention
For the problems that existing nitrogen pre-treatment exists, the utility model provides a kind of nitrogen pretreatment unit, comprises the nitrogen head tank connected in turn, moisture eliminator, deoxygenation system, purified nitrogen storage tank, is connected with on-line measurement device between described deoxygenation system and purified nitrogen storage tank; Adopt the nitrogen pretreatment unit of this structure, the utility model is provided with on-line measurement device, whether is qualifiedly convenient to detect nitrogen.When nitrogen detects qualified, directly can enter purified nitrogen storage tank and store.If nitrogen detects defective, then reenter nitrogen head tank, complete the preprocessing process of nitrogen.If through repeatedly preprocessing process, nitrogen is still defective, then enter evacuated tube and carry out emptying process.Whole process is practical, can save energy, meets the strategy of national energy-saving environmental protection.
The utility model is by the following technical solutions: a kind of nitrogen pretreatment unit, comprises the nitrogen head tank connected in turn, moisture eliminator, deoxygenation system, purified nitrogen storage tank, and described moisture eliminator is two molecular sieve dehydration systems in parallel; Described deoxygenation system is two reductive jar in parallel; Nitrogen buffer tank is connected with between described moisture eliminator and nitrogen head tank; On-line measurement device is connected with between described deoxygenation system and purified nitrogen storage tank; Described on-line measurement device is connected by return line with between nitrogen head tank; Described nitrogen head tank and nitrogen buffer tank, nitrogen buffer tank and moisture eliminator, moisture eliminator and deoxygenation system, deoxygenation system and on-line measurement device, be connected by circulating tube between on-line measurement device with purified nitrogen storage tank; Circulating tube between described on-line measurement device and purified nitrogen storage tank is connected with evacuated tube; All bodys are provided with valve with control nitrogen gas stream to.
Adopt the nitrogen pretreatment unit of this structure, nitrogen in nitrogen head tank is entered nitrogen buffer tank by circulating tube cushion, enter moisture eliminator afterwards and carry out processed, after dehydration, nitrogen will enter in deoxygenation system and carry out deoxidation treatment, after deoxidation treatment, nitrogen will carry out the measurement of minor amount of water and micro amount of oxygen by on-line measurement device, whether qualifiedly detects nitrogen.If it is qualified that nitrogen detects, just enter purified nitrogen storage tank by circulating tube and store.If nitrogen detects defective, then reenter nitrogen head tank by return line, complete the preprocessing process of nitrogen.If through repeatedly preprocessing process, nitrogen is still defective, then enter evacuated tube and carry out emptying process.In the utility model, dewatering system is two molecular sieve dehydration systems in parallel, and deoxygenation system is two reductive jar in parallel, and when nitrogen Pretreatment pressures is excessive, two molecular sieve dehydration systems and two reductive jar can complete dehydration and deoxidation process by cooperation; When nitrogen Pretreatment pressures individual molecule screen system and single reductive jar only can carry out dehydration and deoxidation process with one of them during load.
In sum, adopt the nitrogen pretreatment unit of this structure, the utility model is provided with on-line measurement device, whether be qualifiedly convenient to detect nitrogen.When nitrogen detects qualified, directly can enter purified nitrogen storage tank and store.When nitrogen detects defective, if nitrogen detects defective, then reenter nitrogen head tank, complete the preprocessing process of nitrogen.If through repeatedly preprocessing process, nitrogen is still defective, then enter evacuated tube and carry out emptying process.Whole process is practical, can save energy, meets the strategy of national energy-saving environmental protection.Whole process is directly convenient, on-line measurement device and preprocessing process is integrated, reduces operation steps, can substantially increase pre-treatment efficiency to a certain extent.
Accompanying drawing explanation
Fig. 1 is the structural representation of nitrogen pretreatment unit described in the utility model;
In figure, 1 is nitrogen head tank, and 2 is moisture eliminator, and 3 is nitrogen buffer tank, and 4 is on-line measurement device, and 5 is purified nitrogen storage tank, and 6 is evacuated tube, and 7 is deoxygenation system, and 8 is return line.
Embodiment
A kind of nitrogen pretreatment unit, comprise the nitrogen head tank 1 connected in turn, moisture eliminator 2, deoxygenation system 7, purified nitrogen storage tank 5, described moisture eliminator 2 is two molecular sieve dehydration systems in parallel; Described deoxygenation system 7 is two reductive jar in parallel; Nitrogen buffer tank 3 is connected with between described moisture eliminator 2 and nitrogen head tank 1; On-line measurement device 4 is connected with between described deoxygenation system 7 and purified nitrogen storage tank 5; Described on-line measurement device 4 is connected by return line 8 with between nitrogen head tank 1; Described nitrogen head tank 1 and nitrogen buffer tank 3, nitrogen buffer tank 3 and moisture eliminator 2, moisture eliminator 2 and deoxygenation system 7, deoxygenation system 7 and on-line measurement device 4, be connected by circulating tube between on-line measurement device 4 with purified nitrogen storage tank 5; Circulating tube between described on-line measurement device 4 and purified nitrogen storage tank 5 is connected with evacuated tube 6; All bodys are provided with valve with control nitrogen gas stream to.
Claims (5)
1. a nitrogen pretreatment unit, comprise the nitrogen head tank (1) connected in turn, moisture eliminator (2), deoxygenation system (7), purified nitrogen storage tank (5), is characterized in that: described moisture eliminator (2) is two molecular sieve dehydration systems in parallel; Nitrogen buffer tank (3) is connected with between described moisture eliminator (2) and nitrogen head tank (1); On-line measurement device (4) is connected with between described deoxygenation system (7) and purified nitrogen storage tank (5); Described on-line measurement device (4) is connected by return line (8) with between nitrogen head tank (1); Circulating tube between described on-line measurement device (4) and purified nitrogen storage tank (5) is connected with evacuated tube (6).
2. nitrogen pretreatment unit according to claim 1, is characterized in that: described moisture eliminator (2) is two molecular sieve dehydration systems in parallel.
3. nitrogen pretreatment unit according to claim 1, is characterized in that: described deoxygenation system (7) is two reductive jar in parallel.
4. nitrogen pretreatment unit according to claim 1, it is characterized in that: described nitrogen head tank (1) and nitrogen buffer tank (3), nitrogen buffer tank (3) and moisture eliminator (2), moisture eliminator (2) and deoxygenation system (7), deoxygenation system (7) and on-line measurement device (4), be connected by circulating tube between on-line measurement device (4) with purified nitrogen storage tank (5).
5. nitrogen pretreatment unit according to claim 1, is characterized in that: all bodys are provided with valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520928011.6U CN205115048U (en) | 2015-11-20 | 2015-11-20 | Nitrogen gas preprocessing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520928011.6U CN205115048U (en) | 2015-11-20 | 2015-11-20 | Nitrogen gas preprocessing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205115048U true CN205115048U (en) | 2016-03-30 |
Family
ID=55570673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520928011.6U Expired - Fee Related CN205115048U (en) | 2015-11-20 | 2015-11-20 | Nitrogen gas preprocessing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205115048U (en) |
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2015
- 2015-11-20 CN CN201520928011.6U patent/CN205115048U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160330 Termination date: 20171120 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |