CN209230381U - Heat medium water waste heat, which efficiently upgrades, utilizes system - Google Patents
Heat medium water waste heat, which efficiently upgrades, utilizes system Download PDFInfo
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- CN209230381U CN209230381U CN201821786188.7U CN201821786188U CN209230381U CN 209230381 U CN209230381 U CN 209230381U CN 201821786188 U CN201821786188 U CN 201821786188U CN 209230381 U CN209230381 U CN 209230381U
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Abstract
Efficiently upgrade the utility model discloses a kind of heat medium water waste heat and utilize system, comprising: heat taking and exchanging device；Use heat exchanger；Vapor-water heat exchanger；And big temperature difference heat pump unit, it is characterized in that, the first end of the heat taking and exchanging device is connected to by heat removing tube road with thermal is taken, its second end is connected to described with the first end of heat exchanger by heating agent water lines, and is successively connected to the first end of the vapor-water heat exchanger and the big temperature difference heat-exchange unit by the parallel branch of the heating agent water lines；It is described with the second end of heat exchanger by being connected to first with pipe line with first with thermal；The second end of the big temperature difference heat pump unit is connect by second with pipe line with second with thermal.
Description
Technical field
The utility model relates to petrochemical plant Waste Heat Reuses, and in particular to a kind of heat medium water waste heat, which efficiently upgrades, utilizes system.
Background technique
There are many links for needing to radiate with heating in petrochemical refining's plant process flow, heat dissipation capacity is immediately discharged to atmosphere, wave
Take serious；Heating amount is purchased fuel by high cost and is met, and the low use of high energy is less economical.Current domestic some petrochemical plants are
Recognize the value of waste heat and recycled by some measures, realize heat integration, meet itself a part uses heat demand.Heat
It measures transmission & distribution from waste heat source to hot trap and usually uses heat medium water, heat is taken by end heat exchanger realization and with hot.However benefit from hot end
For medium into the higher influence of heat exchange temperature, heat medium water return water temperature is high, leads to that hot end is taken to take heat small, the effect of heat integration is not
It is fully up to expectations.
Therefore there is a need in the art for a kind of improved UTILIZATION OF VESIDUAL HEAT IN solutions.
Utility model content
Embodiment according to the present utility model, provides a kind of heat medium water waste heat and efficiently upgrades and utilize system, comprising: takes heat
Heat exchanger；Use heat exchanger；Vapor-water heat exchanger；And big temperature difference heat-exchange unit, which is characterized in that the of the heat taking and exchanging device
One end is connected to by heat removing tube road with thermal is taken, and second end passes through heating agent water lines and the first end with heat exchanger
Connection, and by the parallel branch of the heating agent water lines successively with the vapor-water heat exchanger and the big temperature difference heat-exchange unit
First end connection；It is described with the second end of heat exchanger by being connected to first with pipe line with first with thermal；It is described big
The second end of temperature difference heat-exchange unit is connect by second with pipe line with second with thermal.
The heat medium water waste heat of embodiment according to the present utility model efficiently upgrades can be by reducing heat medium water using system
Return water temperature improve take hot end take heat, to improve the utilization rate of waste heat of refinery.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of existing heat integration afterheat utilizing system；And
Fig. 2 is the structural schematic diagram efficiently upgraded according to the heat medium water waste heat of the embodiments of the present invention using system.
Specific embodiment
The embodiments of the present invention and the relevant technologies are described in detail with reference to the accompanying drawings.In the following description, it illustrates
Many details are to make person of ordinary skill in the field that the utility model be appreciated more fully.But for institute
Belong to the technical staff in technical field it is evident that realizing for the utility model can be without some in these details.
However, it should be understood that the utility model is not limited to introduced specific embodiment.On the contrary, it may be considered that with following
Any combination of feature and element implements the utility model, regardless of whether they are related to different embodiments.Therefore, below
Aspect, feature, embodiment and advantage be used and be not construed as the element or restriction of claim for illustrative purposes only, unless
It is clearly proposed in claim.The meaning of each term involved in this specification is generally the common meaning in this field, or
The meaning just understood after reading this description for those skilled in the art.Term " first " in this specification, "
Two " etc. are only used for distinguishing different components, any ordinal relation, the importance etc. being not offered as between component.In this specification
Term "include", "comprise" be it is open, i.e., other than mentioned each element, it is also possible to unmentioned be wanted including other
Element.In addition, " connection ", " connection " or similar term in this specification can both refer to direct connection or company between two components
It connects, can also refer to the indirect communication or connection for passing through other component between two components.
Referring now to Fig. 1, it illustrates the structural schematic diagrams of existing heat integration afterheat utilizing system 100.Institute as shown in figure 1
Show, the heat integration afterheat utilizing system 100 includes: heat taking and exchanging device 101, with heat exchanger 102 and heat dissipation heat exchanger
103, wherein the first end of the heat taking and exchanging device 101 is by heat removing tube road 104 and takes thermal 107 and heat dissipation heat exchanger 103
Connection, and the heat dissipation heat exchanger 103 is located at the heat taking and exchanging device 101 and described take between thermal 107, described takes heat
In the 104 return water pipeline section of heat removing tube road of heat exchanger 101；The second end of the heat taking and exchanging device 101 by heating agent water lines 105 with
The first end with heat exchanger 102 is connected to；The second end with heat exchanger 102 passes through hot with pipe line 106 and use
Device 108 is connected to.
It is described to take thermal 107 that pass through air-cooled or water cooling for material to be any in the process flow of refinery
The device of heat dissipation.Described with thermal 108 can be the device of any required heat in the process flow of refinery.
At work, take thermal 107 that its heat is transferred to the first of heat taking and exchanging device 101 by heat removing tube road 104
End, and heat exchange is carried out with the heat medium water in the heating agent water lines 105 of the second end of heat taking and exchanging device 101, the heating agent after heating
Heat is transferred to the first end with heat exchanger 102 by heating agent water lines 105 by water, and with the second of heat exchanger 102
End carries out heat exchange with thermal medium or material in pipe line 106, after heating with thermal medium or material by using heat pipe
Road 106 is transported to user apparatus, to participate in corresponding process flow.
In this heat integration afterheat utilizing system 100, the heat taking and exchanging device 101 with heat exchanger 102 is inverse
Heat exchanger, the i.e. fluid at heat exchanger both ends relative flow in the opposite direction are flowed, to carry out heat exchange.In this contra-flow heat exchanger
In, the lower limit of first end return water temperature is second end inflow temperature.For example, as shown in Fig. 1, for heat exchanger 102 come
It says, is t1, then in the heating agent water lines 105 of its first end if its second end is higher with the inflow temperature in pipe line 106
Return water temperature t2 lower limit be t1；Similarly, for heat taking and exchanging device 101, due to the heating agent water lines 105 of its second end
In inflow temperature be t2, the lower limit of the return water temperature t3 in the heat removing tube road 104 of first end is t2.Therefore, if t1
(for example, 70 DEG C or so) are higher, then system 100 to multipotency makes return water or temperature of charge in heat removing tube road 104 be down to t1, without
It can be made to drop to lower temperature t4 (for example, 50 DEG C or so), in this way, heat can not all take out, it can only be further by dissipating
Heat exchanger 103 slatterns heat dissipation.
Referring now to Fig. 2, efficiently upgrades it illustrates the heat medium water waste heat of embodiment according to the present utility model and utilize system
200 structural schematic diagram.As shown in Figure 2, it includes: heat taking and exchanging device that the heat medium water waste heat, which efficiently upgrades using system 200,
101；With heat exchanger 102；Vapor-water heat exchanger 201；And big temperature difference heat-exchange unit 202, wherein the heat taking and exchanging device 101
First end be connected to thermal 107 is taken by heat removing tube road 104, second end by heating agent water lines 105 and it is described use it is hot
The first end of heat exchanger 102 is connected to, and by the parallel branch 203 of the heating agent water lines 105 successively with the steam-water heat exchanging
Device 202 is connected to the first end of the big temperature difference heat-exchange unit 202；The second end with heat exchanger 102 is by using heat pipe
Road 106 is connected to first with thermal 108；The second end of the big temperature difference heat-exchange unit 202 by second with pipe line 204 with
Second is connected with thermal 205.
The heat taking and exchanging device 101, with heat exchanger 102, take thermal 107, heat removing tube road 104, heating agent water lines
105, with pipe line 106, with thermal 108 can it is identical as corresponding component in existing heat integration afterheat utilizing system 100 or
It is similar, naturally it is also possible to different.
The first end of the vapor-water heat exchanger 201 is connected to steam pipework, second end and the heating agent water lines 105
Parallel branch 203 is connected to, so as to which the heat transfer of steam to be given to the heat medium water in the parallel branch 203.In this way, described
Heat medium water in parallel branch 203 through heating up can be used for driving the big temperature difference heat-exchange unit 203, and be exchanged heat by the big temperature difference
Unit 203 significantly cools down.
In some embodiments, the big temperature difference heat-exchange unit 202 may include: internal exchanger (not shown), and
Absorption heat pump (not shown), wherein the parallel branch 203 of the heating agent water lines 105 is in the big temperature difference heat-exchange unit
The generator of the absorption heat pump, the first end of the internal exchanger and the absorption heat pump are passed sequentially through in 202
Evaporator；And wherein, described second passes through institute in the big temperature difference heat-exchange unit 202 with pipe line 204 with parallel way
State the second end of internal exchanger and the condenser and absorber of the absorption heat pump.In other embodiments, described big
Temperature difference heat-exchange unit 202 also can have other structures.
Described second can use hot charging with thermal 205 for other in the process flow of municipal heat supply network or refinery
It sets.
Efficiently upgrade in the heat medium water waste heat of embodiment according to the present utility model using in system 200, passes through the heat
The 203 fetching portion heat medium waters of parallel branch of matchmaker's water lines 105 supplies water, and first passes through the heating of vapor-water heat exchanger 201 and (such as rises to
130 DEG C or so), into big temperature difference heat-exchange unit 202 after be down to low temperature (such as 30 DEG C or so), then with heating agent water lines 105
In higher temperatures t2 (such as 80 DEG C or so) heat medium water return water mixing, be reduced to compared with low temperature t5 (such as 40 DEG C or so), then into
Enter heat taking and exchanging device 101, so that heat taking and exchanging device 101 takes hot end return water to be minimized to compared with low temperature t4, so as to take
It takes more waste heats of thermal medium or material to take out in pipe line, improves utilization rate of waste heat.
Efficiently upgrade above by reference to the heat medium water waste heat that attached drawing describes embodiment according to the present utility model and utilizes system
200, it is noted that above description and diagram are merely illustrative, rather than limitations of the present invention.In the utility model
In other embodiments, which can have more, less or different component, and connection between each component, include and function
Etc. relationships can with it is described and diagram difference.For another example listed each actual temp value is merely illustrative herein, rather than
Limitations of the present invention.In the other embodiments of the utility model, can have various from listed different temperature value group
It closes.
Although the utility model is disclosed as above by embodiment, the utility model is not limited to this.This field
Technical staff's made various changes and modification without departing from the spirit and scope of the utility model, it is practical newly should all to be included in this
The protection scope of type, the protection scope of the utility model are only with the language of claim and its language limited range of equal value
It is quasi-.
Claims (3)
1. a kind of heat medium water waste heat, which efficiently upgrades, utilizes system, comprising:
Heat taking and exchanging device；
Use heat exchanger；
Vapor-water heat exchanger；And
Heat-exchange unit,
It is characterized in that, the first end of the heat taking and exchanging device is connected to by heat removing tube road with thermal is taken, second end passes through
Heating agent water lines are connected to described with the first end of heat exchanger, and by the parallel branch of the heating agent water lines successively with institute
Vapor-water heat exchanger is stated to be connected to the first end of the heat-exchange unit；
It is described with the second end of heat exchanger by being connected to first with pipe line with first with thermal；
The second end of the heat-exchange unit is connect by second with pipe line with second with thermal.
2. system according to claim 1, which is characterized in that described second is set to municipal heat supply network with hot charging.
3. system according to claim 1, which is characterized in that the heat-exchange unit includes: internal exchanger, and is absorbed
Formula heat pump,
Wherein, the parallel branch of the heating agent water lines passes sequentially through the generation of the absorption heat pump in the heat-exchange unit
The evaporator of device, the first end of the internal exchanger and the absorption heat pump；
And wherein, it is described second with pipe line in the heat-exchange unit with parallel way pass through the internal exchanger second
The condenser and absorber of end and the absorption heat pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821786188.7U CN209230381U (en) | 2018-10-31 | 2018-10-31 | Heat medium water waste heat, which efficiently upgrades, utilizes system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821786188.7U CN209230381U (en) | 2018-10-31 | 2018-10-31 | Heat medium water waste heat, which efficiently upgrades, utilizes system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209230381U true CN209230381U (en) | 2019-08-09 |
Family
ID=67501596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821786188.7U Active CN209230381U (en) | 2018-10-31 | 2018-10-31 | Heat medium water waste heat, which efficiently upgrades, utilizes system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209230381U (en) |
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2018
- 2018-10-31 CN CN201821786188.7U patent/CN209230381U/en active Active
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