CN202770293U - Double-stage heat-exchanging energy-saving cooling device - Google Patents
Double-stage heat-exchanging energy-saving cooling device Download PDFInfo
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- CN202770293U CN202770293U CN 201220441578 CN201220441578U CN202770293U CN 202770293 U CN202770293 U CN 202770293U CN 201220441578 CN201220441578 CN 201220441578 CN 201220441578 U CN201220441578 U CN 201220441578U CN 202770293 U CN202770293 U CN 202770293U
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- heat exchanger
- cooling
- cooling water
- heat
- extraction pump
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Abstract
The utility model discloses a double-stage heat-exchanging energy-saving cooling device. The double-stage heat-exchanging energy-saving cooling device comprises an extraction pump, a cooling water heat exchanger and a product tank, wherein an input end of the extraction pump is connected with a bio-diesel liquid-collection groove in a vacuum tower, an output end of the extraction pump is connected with an input port of the cooling water heat exchanger, an output port of the cooling water heat exchanger is connected with the product tank, a second cooling heat exchanger is further connected between the extraction pump and the cooling water heat exchanger, the refrigerant in the second cooling heat exchanger is raw oil at the normal temperature. The double-stage heat-exchanging energy-saving cooling device well overcomes the defects of waste of energy, scaling formation of heat-exchanging faces, and low heat-exchanging efficiency of the heat exchangers, and has the advantages of being simple in structure, low in cost and good in heat-exchanging effect.
Description
Technical field
The utility model relates to the heat-exchanger rig of Organic chemical products biodiesel, is specifically related to a kind of two-stage heat exchange energy-conserving cooling device.
Background technology
Along with the energy is fewer and feweri, field of energy utilization also increases day by day, and people are also more and more higher to the requirement of energy utilization rate, utilization that particularly can not the renewable sources of energy.Such as oil, coal, diesel oil etc., people not only take full advantage of it, more require economical environment-protective.At present, the production of biodiesel generally adopts the method for rectification under vacuum to carry out separating-purifying to product.The biodiesel temperature that rectification under vacuum is produced can reach 180 ℃～200 ℃.Biodiesel when the storage of the higher situation of temperature, be subject to metal catalytic generation oxidation deterioration.For make its its be easy to the storage, need to the biological oil of extraction be cooled.In the prior art, the method for the biodiesel of extraction cooling is to adopt the single-stage heat exchanger, namely directly with cooling water biodiesel is cooled off.The shortcoming that adopts single-stage heat exchanger cooling water process to exist is:
1, biodiesel need to consume a large amount of cooling waters in the heat exchange cooling procedure, and the cooling water water temperature after the heat exchange is higher, has increased like this load of cooling tower, so that cooling tower easily transships, cause the cooling water temperature in the pond higher, thereby reduce the cooling effect of recirculated cooling water.
2, biodiesel can discharge a large amount of heat energy in the heat exchange cooling procedure, along with the continuous production extraction of high-temperature biological diesel oil, a large amount of heat-energy transducers constantly is transferred in the cooling water, the cooling water salt concentration also increases so that recirculated cooling water constantly volatilizees, and causes hardness of water to uprise gradually.The higher cooling water of high-temperature biological diesel oil and hardness during heat exchange, easily causes the heat-transfer surface fouling in heat exchanger, reduce heat exchange efficiency.
3, the single-stage heat exchanger is because its heat exchange efficiency is low, and cooling effect is undesirable, biodiesel can not be cooled to comparatively ideal storing temperature, is unfavorable for the storage of biodiesel, has affected its quality.
The utility model content
For overcoming above-mentioned deficiency, the utility model provides that a kind of cooling effectiveness is good, energy savings, guarantees at continuous flow procedure biodiesel to be cooled to desirable storing temperature, guarantees the two-stage heat exchange energy-conserving cooling device of oil quality.
Be to solve above-mentioned purpose, the utility model by the following technical solutions:
Two-stage heat exchange energy-conserving cooling device, comprise extraction pump and cooling water heat exchanger, the input of described extraction pump is connected with vacuum column, its output is connected with the input port of cooling water heat exchanger, the delivery outlet of cooling water heat exchanger links to each other with products pot, also is connected with the second cooling heat exchanger between described extraction pump and the cooling water heat exchanger.
In the such scheme, the cooling agent in described the second cooling heat exchanger can be cooling water, or the feedstock oil under the normal temperature.The heat energy that discharges at heat transfer process in order to take full advantage of biodiesel, the energy that the simultaneously dehydration of conservation oil consumes, the purpose of reach energy savings, again utilizing, and the live load of minimizing cooling tower, the cooling agent in described the second cooling heat exchanger is preferably the feedstock oil under the normal temperature.
In the such scheme, can be connected with a control valve group between described extraction pump and the second cooling heat exchanger, this control valve group is formed by connecting by four valves.Can more safely biodiesel be delivered in the second cooling heat exchanger by this control valve group, guarantee that simultaneously course of conveying is more unimpeded.
In the such scheme, described extraction pump can be circulating pump.
The beneficial effects of the utility model are:
1, with feedstock oil high-temperature biological diesel oil is carried out first order cooling, cooling heat transferring process, the transfer of heat of biodiesel so that high-temperature biological diesel oil is cooled off, can heat feedstock oil again to feedstock oil so simultaneously, have realized the purpose of energy savings.
2, after the elementary cooling of biodiesel through the second cooling heat exchanger, temperature has been down to middle low temperature, and when passing through cooling water heat exchanger again, needed cooling water reduces in a large number, thereby has reduced the load of cooling water conveying device, has saved required electric energy.
When 3, the biodiesel of middle low temperature was passed through cooling water heat exchanger again, the heat-exchange temperature of biodiesel and cooling water heat exchanger reduced greatly, had solved the drawback of heat-transfer surface fouling, had ensured the heat exchange efficiency of cooling water heat exchanger.
4, through behind the second cooling heat exchanger, the cooling water heat exchanger, temperature can be down to normal temperature to the biodiesel of extraction respectively, has reached comparatively ideal storing temperature, has guaranteed quality and the storage time of oil product.
Description of drawings
Fig. 1 is the heat exchange process schematic diagram of the utility model two-stage heat exchange energy-conserving cooling device.
Fig. 2 is single-stage heat exchange process schematic diagram.
Number in the figure is: 1, vacuum column; 2, extraction pump; 3, the second cooling heat exchanger; 4, cooling water heat exchanger; 5, control valve group; 6, products pot.
The specific embodiment
Below preferred embodiment of the present utility model is described, should be appreciated that preferred embodiment described herein only is used for description and interpretation the utility model, and be not used in restriction the utility model.
As shown in Figure 1, two-stage heat exchange energy-conserving cooling device, comprise extraction pump 2, cooling water heat exchanger 4 and products pot 6, the input of described extraction pump 2 is connected with vacuum column 1, its output is connected with the input port of cooling water heat exchanger 3, the delivery outlet of cooling water heat exchanger 4 links to each other with products pot 6, also is connected with the second cooling heat exchanger 3 between extraction pump 2 and the cooling water heat exchanger 4.As optimal case, the cooling agent described in the present embodiment in the second cooling heat exchanger 3 is the feedstock oil under the normal temperature, and described extraction pump 2 is circulating pump.Be connected an in addition control valve group 5 between described extraction pump 2 and the second cooling heat exchanger 3, this control valve group 5 is formed by connecting by four valves, wherein said four valves are general control valve, and three control valves are connected in series as main road, and another valve is in parallel with main road as bypass.
The utility model two-stage heat exchange energy-conserving cooling device is when work, and at first extraction pump 2 is delivered to the collecting tank of biodiesel from vacuum column 1 feedstock oil that is connected with in the second cooling heat exchanger 3, the second cooling heat exchangers 3 pipes under the normal temperature.In the present embodiment, biodiesel and feedstock oil carry out countercurrent heat exchange, and heat transfer process feedstock oil is with the heat energy of organism-absorbing diesel oil to greatest extent.After the cooling through the second cooling heat exchanger 3, during by extraction 180 ℃～200 ℃ of the temperature of biodiesel are reduced to about 90 ℃, carry out second level cooling through cooling water heat exchanger 4 again, so that biodiesel is cooled to normal temperature at last, be delivered to storage in the products pot 6.The utility model is simple in structure, can reach the purpose of energy savings.
Claims (4)
1. two-stage heat exchange energy-conserving cooling device, comprise extraction pump (2), cooling water heat exchanger (4) and products pot (6), the input of described extraction pump (2) is connected with vacuum column (1), its output is connected with the input port of cooling water heat exchanger (4), the delivery outlet of cooling water heat exchanger (4) links to each other with products pot (6), it is characterized in that: also be connected with the second cooling heat exchanger (3) between described extraction pump (2) and the cooling water heat exchanger (4).
2. two-stage heat exchange energy-conserving cooling device according to claim 1 is characterized in that: the cooling agent in described the second cooling heat exchanger (3) is the feedstock oil under the normal temperature.
3. two-stage heat exchange energy-conserving cooling device according to claim 1 is characterized in that: be connected with a control valve group (5) between described extraction pump (2) and the second cooling heat exchanger (3).
4. two-stage heat exchange energy-conserving cooling device according to claim 1, it is characterized in that: described extraction pump (2) is circulating pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220441578 CN202770293U (en) | 2012-09-01 | 2012-09-01 | Double-stage heat-exchanging energy-saving cooling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220441578 CN202770293U (en) | 2012-09-01 | 2012-09-01 | Double-stage heat-exchanging energy-saving cooling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202770293U true CN202770293U (en) | 2013-03-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220441578 Expired - Fee Related CN202770293U (en) | 2012-09-01 | 2012-09-01 | Double-stage heat-exchanging energy-saving cooling device |
Country Status (1)
| Country | Link |
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| CN (1) | CN202770293U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102798310A (en) * | 2012-09-01 | 2012-11-28 | 防城港市中能生物能源投资有限公司 | Two-stage heat-exchanging and energy-saving cooling device |
| CN105371678A (en) * | 2015-11-20 | 2016-03-02 | 湖南省湘衡盐化有限责任公司 | Mirabilite cooling device |
-
2012
- 2012-09-01 CN CN 201220441578 patent/CN202770293U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102798310A (en) * | 2012-09-01 | 2012-11-28 | 防城港市中能生物能源投资有限公司 | Two-stage heat-exchanging and energy-saving cooling device |
| CN105371678A (en) * | 2015-11-20 | 2016-03-02 | 湖南省湘衡盐化有限责任公司 | Mirabilite cooling device |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130306 Termination date: 20170901 |