CN202777877U - Negative pressure generation device for rectification - Google Patents
Negative pressure generation device for rectification Download PDFInfo
- Publication number
- CN202777877U CN202777877U CN 201220521000 CN201220521000U CN202777877U CN 202777877 U CN202777877 U CN 202777877U CN 201220521000 CN201220521000 CN 201220521000 CN 201220521000 U CN201220521000 U CN 201220521000U CN 202777877 U CN202777877 U CN 202777877U
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- negative pressure
- roots blower
- rectifying
- heater
- condenser
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Abstract
The utility model discloses a negative pressure generation device for rectification, which takes a Roots blower as a power source, and comprises a condensing recovery can, a recovery tank and a Roots blower, wherein a baffle connected with the top of the recovery can is arranged in a cavity of the condensing recovery can, the baffle is obliquely arranged, the upper part of the condensing recovery can is respectively provided with a condenser and a heater on both sides of the baffle, the condenser is connected with a rectifying tower, the heater is connected with the Roots blower, the recovery tank is arranged below the condensing recovery can, and the bottom of the condensing recovery can is connected to the recovery tank through a pipe. According to the utility model, the Roots blower is creatively applied to a chemical negative pressure supply system to replace the original steam jet vacuum pump, therefore, the device is low in energy consumption, and can effectively improve the vacuum degree.
Description
Technical field
The utility model relates to a kind of negative pressure generator, specifically a kind of rectifying negative pressure generating device.
Background technology
In aliphatic acid rectifying decomposition technique, employed rectifying column inside is subnormal ambient, and its inner pressure is about 0.1 MPa in general.For guaranteeing the subnormal ambient of rectifying column inside, traditional technique is to use Steam Spraying Vacuum Pump to provide subnormal ambient as rectifying column, this equipment, and the vacuum that provides is relatively low, and the steam thermal energy that consumes is more.Attempted afterwards design and use roots blower to provide subnormal ambient by extracting rectifying column, but result of use is unsatisfactory.This be because: in the process that aliphatic acid decomposes, contain mordant material in the on-condensible gas in the upper cavity, can cause corrosion to the impeller (metal material) of blower fan, cause the service life of roots blower very short, cause the technical staff to think the inapplicable reason be used to negative pressure is provided of roots blower, why for a long time, this also is, all is to use Steam Spraying Vacuum Pump rather than roots blower that one of reason of negative pressure is provided as rectifying column.
The utility model content
The purpose of this utility model is to provide a kind of rectifying negative pressure generating device, and initiative chemical industry negative pressure that roots blower is applied to provides in the system, replaces original Steam Spraying Vacuum Pump, and it is low to consume energy, and can effective gas clean-up.
The technical scheme in the invention for solving the technical problem is: a kind of rectifying negative pressure generating device, comprise rectifying column, it is characterized in that, also comprise the condensation recycling can, accumulator tank and roots blower, be provided with a baffle plate that links to each other with the top in the cavity of described condensation recycling can, a condenser and a heater are installed respectively in the top of the condensation recycling can of baffle plate both sides, described condenser is connected with rectifying column, described heater is connected with roots blower, described accumulator tank is positioned under the condensation recycling can, is connected to accumulator tank in the bottom of described condensation recycling can by pipeline.
Described accumulator tank is 15 meters below the condensation recycling can.
Passing into cold water in the described condenser lowers the temperature.
Passing into the steam exhaust steam in the described heater heats.
Described condenser is the heat exchanger of U-shaped tubular type, and described heater is the straight tube plate type heat exchanger.
The beneficial effects of the utility model are: the utility model is by the design condenser, the gas of releasing is at first carried out condensation, corrosive substance is wherein separated, the corrosive substance of separating flows in the accumulator tank and reclaims, design simultaneously the heater technique for post bake, condensed gas is heated up slightly, corrosive substance can gutter down along the heat exchanger tube in the heater, again enter the condensation recycling can, carry out the purification of secondary.Do not contain corrosive substance in the tail gas after the purification, just can not work the mischief to roots blower, and then solved the problem that roots blower can not use in this field.
Description of drawings
Fig. 1 is connection diagram of the present utility model;
Filled arrows represents the flow direction of tail gas among the figure;
Among the figure: 1 rectifying column, 2 condensation recycling cans, 21 baffle plates, 3 condensers, 4 heaters, 5 roots blowers, 6 accumulator tanks.
The specific embodiment
As shown in Figure 1,
A kind of rectifying negative pressure generating device comprises rectifying column 1, and rectifying column is the main occasion of rectification working process, in rectifying reduces fat sour process, contain mordant material in the on-condensible gas in the upper cavity, this material can work the mischief to roots blower, must remove it.
Improved plan is, be provided with a baffle plate that links to each other with the top 21 in the cavity of condensation recycling can 2, baffle plate with left and right sides two parts separately, be plastic plate, path forms the vortex passage of a U-shaped at the baffle plate downside, and a condenser 3 and a heater 4 are installed respectively in the top of the condensation recycling can of baffle plate 21 both sides, condenser is the heat exchanger of U-shaped tubular type, and heater is the straight tube plate type heat exchanger.Pass into cold water in the condenser 3 and lower the temperature, so that the high-temperature tail gas that passes through cooling, corrosive substance wherein will trickle in condensation recycling can 2, because the temperature of tail gas is higher, can not cause the obstruction of condenser.Condensed tail gas is impact baffle plate 21 in the condensation recycling can, further the corrosive substance particle in the tail gas is reclaimed, tail gas rises and enters heater 4, heater uses the industrial steam exhaust steam to reclaim, residue corrosive substance in the tail gas is further adhered to and is trickled to condensation recycling can 2, tail gas after purifying like this enters the corrosion that roots blower 5 just can not cause blower fan again, has solved the problem that roots blower can not use in this field.For condensation recycling can 15 meters, below (H) that are recovered in that make things convenient for corrosive substance an accumulator tank 6 is installed, is equivalent to a standard atmospheric pressure, under action of gravitation, corrosive substance can flow in the accumulator tank smoothly and reclaim like this.
Except the described technical characterictic of specification, be the known technology of those skilled in the art.
Claims (6)
1. rectifying negative pressure generating device, comprise rectifying column, it is characterized in that, also comprise condensation recycling can, accumulator tank and roots blower, be provided with a baffle plate that links to each other with the top in the cavity of described condensation recycling can, a condenser and a heater are installed respectively in the top of the condensation recycling can of baffle plate both sides, described condenser is connected with rectifying column, described heater is connected with roots blower, described accumulator tank is positioned under the condensation recycling can, is connected to accumulator tank in the bottom of described condensation recycling can by pipeline.
2. a kind of rectifying negative pressure generating device according to claim 1 is characterized in that, described accumulator tank is 15 meters below the condensation recycling can.
3. a kind of rectifying negative pressure generating device according to claim 1 and 2 is characterized in that, passes into cold water in the described condenser and lowers the temperature.
4. a kind of rectifying negative pressure generating device according to claim 1 and 2 is characterized in that, passes into the steam exhaust steam in the described heater and heats.
5. a kind of rectifying negative pressure generating device according to claim 1 and 2 is characterized in that described baffle plate is obliquely installed.
6. a kind of rectifying negative pressure generating device according to claim 1 and 2 is characterized in that, described condenser is the heat exchanger of U-shaped tubular type, and described heater is the straight tube plate type heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220521000 CN202777877U (en) | 2012-10-11 | 2012-10-11 | Negative pressure generation device for rectification |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220521000 CN202777877U (en) | 2012-10-11 | 2012-10-11 | Negative pressure generation device for rectification |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202777877U true CN202777877U (en) | 2013-03-13 |
Family
ID=47805225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220521000 Expired - Fee Related CN202777877U (en) | 2012-10-11 | 2012-10-11 | Negative pressure generation device for rectification |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202777877U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112546659A (en) * | 2020-12-08 | 2021-03-26 | 云南临沧鑫圆锗业股份有限公司 | Purification device and method for germanium tetrafluoride |
-
2012
- 2012-10-11 CN CN 201220521000 patent/CN202777877U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112546659A (en) * | 2020-12-08 | 2021-03-26 | 云南临沧鑫圆锗业股份有限公司 | Purification device and method for germanium tetrafluoride |
| CN112546659B (en) * | 2020-12-08 | 2022-02-15 | 云南临沧鑫圆锗业股份有限公司 | Purification device and method for germanium tetrafluoride |
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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: 20130313 Termination date: 20141011 |
|
| EXPY | Termination of patent right or utility model |