CN204513907U - A kind of empty point chilldown system - Google Patents
A kind of empty point chilldown system Download PDFInfo
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- CN204513907U CN204513907U CN201520159499.0U CN201520159499U CN204513907U CN 204513907 U CN204513907 U CN 204513907U CN 201520159499 U CN201520159499 U CN 201520159499U CN 204513907 U CN204513907 U CN 204513907U
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Abstract
A kind of empty point chilldown system, belong to air separation unit technique field, comprise circulating water main, air cooling tower and air compressor, circulating water main is divided into two branch roads, a branch road is provided with successively the first filter be connected in series, cooling water pump, another branch road is provided with successively the water-cooling tower be connected in series, second filter, chilled water pump, first handpiece Water Chilling Units and the second handpiece Water Chilling Units, described cooling water pump is connected with the middle part of air cooling tower by pipeline, described second handpiece Water Chilling Units is connected with the top of air cooling tower by pipeline, described air compressor is connected with the bottom of air cooling tower.The utility model reduces the pipe arrangement complexity of many handpiece Water Chilling Units chilldown system, simplifies technique, and reduce cost of investment and the maintenance cost of empty point chilldown system, system cloud gray model is reliable, more convenient to operate.
Description
Technical field
The utility model belongs to air separation unit technique field, is specifically related to a kind of empty point chilldown system.
Background technology
Along with the development of national economy, particularly swift and violent the sending out of the industry such as domestic metallurgy, petrochemical industry, Coal Chemical Industry turns, and increases rapidly the demand of air separation unit.Air precooling system is the important part of of air separation equipment, it is serially connected with between air compressor system and molecular screener adsorbing system, the object of chilldown system is that air is cooled to 8 ~ 13 DEG C by 3100 DEG C, to meet the requirement of molecular sieve adsorber work, compressed air is washed simultaneously, remove the sour gas harmful to adsorbent of molecular sieve.Reasonably use air precooling system, operate with being conducive to air separation equipment long-term safety, particularly high temperature season is particularly important.
The chilldown system of Large Air Separation Devices generally all adopts nitrogen precooling system.In process organization's pattern, nitrogen precooling system can be divided into two classes: have additional low-temperature receiver and the chilldown system without additional low-temperature receiver, wherein has the chilldown system of additional low-temperature receiver can be divided into by the variety classes of low-temperature receiver again: handpiece Water Chilling Units provides additional low-temperature receiver and liquefied ammonia evaporation to provide additional low-temperature receiver two kinds.When need additional cold larger time, separate unit handpiece Water Chilling Units cannot meet, now need two even multiple stage handpiece Water Chilling Units jointly provide cold to chilldown system.Traditional many handpiece Water Chilling Units tissue-ing is that each handpiece Water Chilling Units is connected in parallel, and chilled water passes in and out each handpiece Water Chilling Units vaporizer side respectively, sends after converging, and this linked vector graph pipe arrangement is complicated, complex operation, safeguards not easily.
Utility model content
In order to overcome the defect of prior art, the utility model provides a kind of empty point chilldown system.
Based on above-mentioned purpose, the utility model takes following technical scheme:
A kind of empty point chilldown system, comprise circulating water main, air cooling tower and air compressor, circulating water main is divided into two branch roads, a branch road is provided with successively the first filter, the cooling water pump that are connected in series, another branch road is provided with successively the water-cooling tower, the second filter, chilled water pump, the first handpiece Water Chilling Units and the second handpiece Water Chilling Units that are connected in series, described cooling water pump is connected with the middle part of air cooling tower by pipeline, described second handpiece Water Chilling Units is connected with the top of air cooling tower by pipeline, and described air compressor is connected with the bottom of air cooling tower.
Described first handpiece Water Chilling Units comprises the first evaporimeter, described second handpiece Water Chilling Units comprises the second evaporimeter, described first handpiece Water Chilling Units and the second handpiece Water Chilling Units are connected in series by chilled water water inlet manifold road, the inlet channel of the first evaporimeter and the end of outlet conduit are all connected on chilled water water inlet manifold road, and chilled water water inlet manifold road between the inlet channel and outlet conduit of the first evaporimeter is provided with the first valve; The inlet channel of the second evaporimeter and the end of outlet conduit are all connected on chilled water water inlet manifold road, and chilled water water inlet manifold road between the inlet channel and outlet conduit of the second evaporimeter is provided with the second valve.
The utility model reduces the pipe arrangement complexity of many handpiece Water Chilling Units chilldown system, simplifies technique, and reduce cost of investment and the maintenance cost of empty point chilldown system, system cloud gray model is reliable, more convenient to operate.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
As shown in Figure 1, a kind of empty point chilldown system, comprise circulating water main 1, air cooling tower 9 and air compressor 10, circulating water main 1 is divided into two branch roads, a branch road is provided with successively the first filter 31 be connected in series, cooling water pump 5, another branch road is provided with successively the water-cooling tower 2 be connected in series, second filter 32, chilled water pump 4, first handpiece Water Chilling Units 7 and the second handpiece Water Chilling Units 8, described cooling water pump 5 is connected by the middle part of pipeline with air cooling tower 9, described second handpiece Water Chilling Units 8 is connected by the top of pipeline with air cooling tower 9, described air compressor 10 is connected with the bottom of air cooling tower 9.
Described first handpiece Water Chilling Units 7 comprises the first evaporimeter 71, described second handpiece Water Chilling Units 8 comprises the second evaporimeter 81, described first handpiece Water Chilling Units 7 and the second handpiece Water Chilling Units 8 are connected in series by chilled water water inlet manifold road 6, the inlet channel of the first evaporimeter 71 and the end of outlet conduit are all connected on chilled water water inlet manifold road 6, and are provided with the first valve 72 on the chilled water water inlet manifold road 6 between the inlet channel and outlet conduit of the first evaporimeter 71; The inlet channel of the second evaporimeter 81 and the end of outlet conduit are all connected on chilled water water inlet manifold road 6, and are provided with the second valve 82 on the chilled water water inlet manifold road 6 between the inlet channel and outlet conduit of the second evaporimeter 81.
During work, the moisture of circulating water main 1 is two parts: a part is cooling water (about 32 DEG C), enters air cooling tower 9 in the middle part of after being pressurizeed by the first filter 31 after being filtered by cooling water pump; Another part is called chilled water, be introduced in water-cooling tower 2 and utilize the waste gas of fractionating column tentatively to reduce water temperature, then after the second filter 32 filters, enter the first handpiece Water Chilling Units 7 and/or the second handpiece Water Chilling Units 8 through chilled water pump pressurization, the top of air cooling tower 9 is entered after being down to design temperature further, now, high temperature (about 105 DEG C) compressed air from air compressor 10 first cools through cooling water in air cooling tower 9, cool further through chilled water, the compressed air about temperature to 10 DEG C enters next technological process again.
Chilled water is sent into after the first handpiece Water Chilling Units 7 first evaporimeter 71 temperature reduces through chilled water water inlet manifold road 6 and is sent, then delivers to the second handpiece Water Chilling Units 8 second evaporimeter 81, delivers to air cooling tower 9 top after being cooled to design temperature.If operating mode changes, when need cut away the first handpiece Water Chilling Units 7, only the first valve 72 need be opened, now, the first handpiece Water Chilling Units 7 is shorted, and chilled water is directly sent to the second handpiece Water Chilling Units 8 and cools.In like manner, when cutting away the second handpiece Water Chilling Units 8, only the second valve 82 need be opened, each handpiece Water Chilling Units according to operating mode any switching laws, can add the operating flexibility of system.
The utility model simple process, pipe arrangement is reasonable, ensures the cost of investment and the maintenance cost that reduce empty point chilldown system while technique needs, more convenient to operate.
The utility model is also applicable to original handpiece Water Chilling Units and can not meet technique needs, system needs transformation during additional handpiece Water Chilling Units increase cold, specific embodiments is: on former chilled water pipeline, directly select the handpiece Water Chilling Units that appropriate location series connection access is new, without the need to changing former piping options, convenient, succinct.
Claims (2)
1. a sky divides chilldown system, comprise circulating water main, air cooling tower and air compressor, it is characterized in that: circulating water main is divided into two branch roads, a branch road is provided with successively the first filter, the cooling water pump that are connected in series, another branch road is provided with successively the water-cooling tower, the second filter, chilled water pump, the first handpiece Water Chilling Units and the second handpiece Water Chilling Units that are connected in series, described cooling water pump is connected with the middle part of air cooling tower by pipeline, described second handpiece Water Chilling Units is connected with the top of air cooling tower by pipeline, and described air compressor is connected with the bottom of air cooling tower.
2. sky according to claim 1 divides chilldown system, it is characterized in that: described first handpiece Water Chilling Units comprises the first evaporimeter, described second handpiece Water Chilling Units comprises the second evaporimeter, described first handpiece Water Chilling Units and the second handpiece Water Chilling Units are connected in series by chilled water water inlet manifold road, the inlet channel of the first evaporimeter and the end of outlet conduit are all connected on chilled water water inlet manifold road, and chilled water water inlet manifold road between the inlet channel and outlet conduit of the first evaporimeter is provided with the first valve; The inlet channel of the second evaporimeter and the end of outlet conduit are all connected on chilled water water inlet manifold road, and chilled water water inlet manifold road between the inlet channel and outlet conduit of the second evaporimeter is provided with the second valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520159499.0U CN204513907U (en) | 2015-03-20 | 2015-03-20 | A kind of empty point chilldown system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520159499.0U CN204513907U (en) | 2015-03-20 | 2015-03-20 | A kind of empty point chilldown system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204513907U true CN204513907U (en) | 2015-07-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520159499.0U Expired - Fee Related CN204513907U (en) | 2015-03-20 | 2015-03-20 | A kind of empty point chilldown system |
Country Status (1)
| Country | Link |
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| CN (1) | CN204513907U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105091504A (en) * | 2015-09-11 | 2015-11-25 | 开封黄河空分集团有限公司 | Energy-saving type test run device for water chilling unit |
| CN109114999A (en) * | 2018-08-07 | 2019-01-01 | 中冶南方工程技术有限公司 | Space division chilldown system |
| CN109141068A (en) * | 2018-09-30 | 2019-01-04 | 洛阳天泽气体有限公司 | Air heat exchanger cooling water circulation device in a kind of nitrogen production line |
-
2015
- 2015-03-20 CN CN201520159499.0U patent/CN204513907U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105091504A (en) * | 2015-09-11 | 2015-11-25 | 开封黄河空分集团有限公司 | Energy-saving type test run device for water chilling unit |
| CN109114999A (en) * | 2018-08-07 | 2019-01-01 | 中冶南方工程技术有限公司 | Space division chilldown system |
| CN109141068A (en) * | 2018-09-30 | 2019-01-04 | 洛阳天泽气体有限公司 | Air heat exchanger cooling water circulation device in a kind of nitrogen production line |
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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: 20150729 Termination date: 20170320 |
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| CF01 | Termination of patent right due to non-payment of annual fee |