CN203133644U - Automatic control system for dimethyl ether cooling water - Google Patents
Automatic control system for dimethyl ether cooling water Download PDFInfo
- Publication number
- CN203133644U CN203133644U CN 201320142798 CN201320142798U CN203133644U CN 203133644 U CN203133644 U CN 203133644U CN 201320142798 CN201320142798 CN 201320142798 CN 201320142798 U CN201320142798 U CN 201320142798U CN 203133644 U CN203133644 U CN 203133644U
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- cooling
- pond
- pump
- control system
- dimethyl ether
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Abstract
The utility model discloses an automatic control system for dimethyl ether cooling water and relates to the technical field of chemical industries. The automatic control system comprises a cooling pond, a liquid level sensor, a controller, a water supplying pond and a water supplying pump. The liquid level sensor is arranged in the cooling pond. The water supplying pond is connected with the cooling pond through a pipeline having the water supplying pump. The controller is connected with the liquid level sensor and the water supplying pump and is used for controlling operation of the water supplying pump. The control system also comprises a cooling tower, a temperature sensor and a cooling tower pump. The cooling tower is connected with the cooling pond through a pipeline having the cooling tower pump. The controller is connected with the temperature sensor and the cooling tower pump respectively and is used for controlling operation of the cooling tower pump. The automatic control system for the dimethyl ether cooling water does not need manual water supplying, is high in water supplying efficiency, can reduce content of dimethyl ether in emptied tail gas of a dimethyl ether rectifying tower, stabilizes pressure of the top of the dimethyl ether rectifying tower and automatically adjusts the water temperature of the cooling water.
Description
Technical field
The utility model relates to chemical technology field, relates in particular to a kind of dimethyl ether chilled water automatic control system.
Background technology
Because the continuous enhancing of the growing and environmental consciousness of energy demand, dimethyl ether are as a kind of clean fuel, it is efficient, the energy-saving and environmental protection combustion technology is subject to people's attention day by day.Dimethyl ether is a kind of colourless, gas with slight ether fragrance, has characteristics such as inertia, non-corrosiveness, easily compression, condensation, gasification.From the combustion mechanism analysis of dimethyl ether, under the equal heat condition, to compare with other combustion gas such as rock gas, liquefied petroleum gas (LPG), the dimethyl ether burning efficiency can improve about 5%.Dimethyl ether is being widely used aspect vehicle fuel and the domestic fuel, also is a kind of potential novel industrial fuel with wide application prospect simultaneously.
In the dimethyl ether production run, need the condensation of dimethyl ether rectification column, higher too high with the rectification column tower top pressure with the tail gas dimethyl ether content that prevents emptying.Traditional cooling water system adopts manually-operated to carry out moisturizing, and labour intensity is big, and efficient is low, and this causes cooling dimethyl ether rectification column weak effect, makes to cause waste by dimethyl ether content height in the dimethyl ether rectification column emptying end gas.And the cooling effect difference also easily causes dimethyl ether rectification column tower top pressure too high, influences system's ordinary production.
The utility model content
(1) technical matters that will solve
The technical problems to be solved in the utility model is how to solve that the water temperature control efficiency of present dimethyl ether production run chilled water is low, the problem of weak effect.
(2) technical scheme
The utility model provides a kind of dimethyl ether chilled water automatic control system, comprise: liquid level sensor, controller, moisturizing pond and small pump, described liquid level sensor is located in the cooling pond, described moisturizing pond is connected with cooling pond by the pipeline that has described small pump, described controller is connected with described small pump with described liquid level sensor respectively, is used for the work of the described small pump of control.
Described control system also comprises: cooling tower, temperature sensor and cooling tower pump, described cooling tower is connected with cooling pond by the pipeline that is provided with the cooling tower pump, described controller is connected with described cooling tower pump with described temperature sensor, is used for the work of the described cooling tower pump of control.
Wherein, described controller is Programmable Logic Controller, single-chip microcomputer or CPU.
Wherein, described control system also comprises: run-down pipe, and described moisturizing pond is unenclosed construction, described run-down pipe is connected described moisturizing pond with cooling pond.
(3) beneficial effect
Dimethyl ether chilled water automatic control system in the utility model, do not need artificial recharge, moisturizing efficient height can reduce dimethyl ether content in the dimethyl ether rectification column emptying end gas, with stable dimethyl ether rectification column tower top pressure, can also regulate the chilled water water temperature automatically simultaneously.
Description of drawings
Fig. 1 is the structural representation of dimethyl ether chilled water automatic control system in the utility model.
Embodiment
Below in conjunction with drawings and Examples, embodiment of the present utility model is described in further detail.Following examples are used for explanation the utility model, but are not used for limiting scope of the present utility model.
As shown in Figure 1, dimethyl ether chilled water automatic control system in the utility model comprises: cooling pond 1, liquid level sensor 3, controller 4, moisturizing pond 2 and small pump 5, liquid level sensor 3 is located in the cooling pond 1, moisturizing pond 2 is connected with cooling pond 1 by the pipeline that has small pump 5, controller 4 is connected with small pump 5 with liquid level sensor 3, is used for the work of control small pump 5.Controller 4 can be Programmable Logic Controller, single-chip microcomputer or CPU.Moisturizing pond 2 can be unenclosed construction, when rainfall in rainy season factor such as bigger causes cooling pond 1 moisture storage capacity excessive, has the overflow risk, further preferred, native system is equipped with run-down pipe 7 in cooling pond 1 upper end, can be with the chilled water overflow to moisturizing pond 2, to eliminate the influence that the overflow risk produces.
Can produce the temperature rising owing to enter the cooled water of dimethyl ether rectification column because heat energy accumulates, cause cooling effect to descend.Preferably, this dimethyl ether chilled water automatic control system also comprises: cooling tower 10, temperature sensor 8 and cooling tower pump 9, cooling tower 10 is connected with cooling pond 1 by the pipeline that is provided with cooling tower pump 9, controller 4 is connected respectively with temperature sensor 8 and cooling tower pump 9, is used for the work of control cooling tower pump 9.
The principle of work of this dimethyl ether chilled water automatic control system is: temperature sensor 8 detects cooling pond 1 temperature in real time, if cooling pond 1 temperature surpasses setting value, but controller 4 can drive 9 actions of cooling tower pump, by cooling tower upper hose 11 chilled water in the cooling pond 1 is cooled off by cooling tower 10, cooled water is back to cooling pond 1, be lower than until temperature sensor 8 detected temperature and set upper temperature limit, but controller 4 stops 9 work of cooling tower pump by signal controlling.Further preferred, cooling tower pump 9 can adopt this batch (-type) control cooling, under the prerequisite that guarantees cooling effect, further saves the cooling power consumption.
Above embodiment only is used for explanation the utility model; and be not to restriction of the present utility model; the those of ordinary skill in relevant technologies field; under the situation that does not break away from spirit and scope of the present utility model; can also make a variety of changes and modification; therefore all technical schemes that are equal to also belong to category of the present utility model, and scope of patent protection of the present utility model should be defined by the claims.
Claims (3)
1. dimethyl ether chilled water automatic control system, it is characterized in that, described control system comprises: cooling pond, liquid level sensor, controller, moisturizing pond, small pump, described liquid level sensor is located in the described cooling pond, described moisturizing pond is connected with described cooling pond by the pipeline that has described small pump, described controller is connected with described small pump with described liquid level sensor respectively, is used for the work of the described small pump of control;
Described control system also comprises: cooling tower, temperature sensor and cooling tower pump, described cooling tower is connected with cooling pond by the pipeline that is provided with the cooling tower pump, described controller is connected with described cooling tower pump with described temperature sensor respectively, is used for the work of the described cooling tower pump of control.
2. control system as claimed in claim 1 is characterized in that, described controller is Programmable Logic Controller, single-chip microcomputer or CPU.
3. control system as claimed in claim 1 is characterized in that, described control system also comprises: run-down pipe, and described moisturizing pond is unenclosed construction, described run-down pipe is connected described moisturizing pond with cooling pond.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320142798 CN203133644U (en) | 2013-03-26 | 2013-03-26 | Automatic control system for dimethyl ether cooling water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320142798 CN203133644U (en) | 2013-03-26 | 2013-03-26 | Automatic control system for dimethyl ether cooling water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203133644U true CN203133644U (en) | 2013-08-14 |
Family
ID=48941611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320142798 Expired - Fee Related CN203133644U (en) | 2013-03-26 | 2013-03-26 | Automatic control system for dimethyl ether cooling water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203133644U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103513681A (en) * | 2013-03-26 | 2014-01-15 | 新能(张家港)能源有限公司 | Automatic dimethyl ether cooling water control system |
-
2013
- 2013-03-26 CN CN 201320142798 patent/CN203133644U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103513681A (en) * | 2013-03-26 | 2014-01-15 | 新能(张家港)能源有限公司 | Automatic dimethyl ether cooling water control system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Tian Meiqing Inventor after: Xin Dewei Inventor before: Liu Wenxiang |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: LIU WENXIANG TO: TIAN MEIQING XIN DEWEI |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130814 Termination date: 20160326 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |