CN209197561U - Dehydrogenating propane reaction discharging heat-exchange system - Google Patents
Dehydrogenating propane reaction discharging heat-exchange system Download PDFInfo
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- CN209197561U CN209197561U CN201821858308.XU CN201821858308U CN209197561U CN 209197561 U CN209197561 U CN 209197561U CN 201821858308 U CN201821858308 U CN 201821858308U CN 209197561 U CN209197561 U CN 209197561U
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- regulating valve
- feeding tube
- walking feeding
- tube road
- heat exchange
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Abstract
The utility model belongs to chemical equipment technical field, discharging heat-exchange system is reacted more particularly to a kind of dehydrogenating propane, including reactor, reactor is connected with heat exchange unit and surge tank in turn by walking feeding tube road, surge tank is followed by compressor, heat exchange unit includes feed exchanger and the concatenated discharging cooler in walking feeding tube road (i.e. tube side) with feed exchanger, the heat exchange unit is arranged two groups, two groups of heat exchange units are in parallel, it is arranged symmetrically in walking feeding tube road two sides, the walking feeding tube road of two groups of heat exchange units is equipped with the first regulating valve, the second regulating valve is equipped on the shell side pipeline of two feed exchangers, walking feeding tube road (i.e. tube side) outlet of two feed exchangers is equipped with temperature monitoring sensor, first regulating valve, second regulating valve and temperature monitoring sensor are all connected with hot relay.The utility model efficiently solves the problems, such as bias current, realizes the timely amendment to bias current, guarantees the macrocyclic safe and stable operation of system, improves the operating flexibility of device.
Description
Technical field
The utility model relates to a kind of dehydrogenating propanes to react discharging heat-exchange system, belong to chemical equipment technical field.
Background technique
Dehydrogenating propane technique be a kind of aluminium oxide catalyst using carried noble metal Pt realize propane or (and) iso-butane
The moving bed Catalytic processes of the corresponding monoolefine of selective dehydrogenation system.In the process flow, raw material propane or (and) iso-butane connect
It is continuous to enter in concatenated reactor, under the effect of the catalyst, realizes dehydrogenation reaction, generate corresponding monoolefine.It is anti-from minor details
The drop temperature for answering device to reflect is very high, and reaction discharging is cooled to suction port of compressor by feed exchanger, discharging cooler
After required temperature, enter compressor through compressor buffer tank.Feed exchanger be typical one way shell-and-tube heat exchanger, two
Platform uses side by side, and shell side walks cold material, and (raw material propane from ice chest or (and) iso-butane), tube side walks thermal material, and (i.e. minor details are anti-
The reaction of device is answered to discharge).Discharging cooler is typical monoshell journey U-tube fixed tube-sheet exchanger, and two use side by side, pipe
Journey walks cooling circulating water, and shell side walks thermal material (discharging through the cooling reaction of feed exchanger).Two feed exchangers and two
Platform discharging cooler is arranged symmetrically in walking feeding tube road two sides, the export pipeline of reactor, feed exchanger the import and export pipeline, go out
The import and export pipeline of material cooler is arranged symmetrically.
Although having accomplished to be arranged symmetrically, two strands of thermal materials can still have Biased flow phenomenon, and Biased flow phenomenon is in particular in two
Platform feed exchanger tube side exports the thermal material temperature for leading to wherein feed exchanger tube side outlet there are higher temperature difference
Degree is higher than design value, and it is excessively high in turn result in corresponding discharging cooler shell side inlet temperature, cooling circulating water return water temperature mistake
Height, discharging cooler tube side fouling is serious, so that heat transfer effect is influenced, the cycle of operation of shortening device.
Utility model content
According to the above-mentioned deficiencies in the prior art, technical problem to be solved by the utility model is: providing one kind prevents partially
The dehydrogenating propane reaction discharging heat-exchange system of stream, to solve the above problems.
Dehydrogenating propane reaction discharging heat-exchange system described in the utility model, including reactor, reactor pass through walking feeding tube
Road is connected with heat exchange unit and surge tank in turn, and surge tank is followed by compressor, heat exchange unit include feed exchanger and with charging
The concatenated discharging cooler in walking feeding tube road (i.e. tube side) of heat exchanger, the heat exchange unit are arranged two groups, two groups of heat exchange units
Parallel connection is arranged symmetrically in walking feeding tube road two sides, the export pipeline of reactor, the import and export pipeline of feed exchanger, discharging cooling
The import and export pipeline of device is arranged symmetrically.The walking feeding tube road of two groups of heat exchange units is equipped with the first regulating valve, and two chargings are changed
The second regulating valve is equipped on the shell side pipeline of hot device, walking feeding tube road (i.e. tube side) outlet of two feed exchangers is equipped with temperature
Degree monitoring sensor, the first regulating valve, the second regulating valve and temperature monitoring sensor are all connected with hot relay.
The high temperature heat that feed exchanger makes full use of reaction to discharge realizes the preheating to raw material, to reach energy-efficient
Purpose.Discharging cooler is that reaction discharging is cooled further to temperature required for suction port of compressor using cooling circulating water.
In use process, the temperature monitoring sensor of two feed exchanger walking feeding tube roads (i.e. tube side) outlet shows and will monitor
Temperature information pick-up gives hot relay, and when the temperature difference is higher than setting value, the first of hot relay control that higher side of temperature is adjusted
Valve opening reduces, and the second control valve opening increases, and reduces the flow of thermal material, and the flow of cold material increases；Temperature is lower
That side is opposite.Until two feed exchanger walking feeding tube road (i.e. tube side) outlet temperature differences are restored to normal value, adjust
Terminate.
First regulating valve can be set in walking feeding tube road (i.e. tube side) inlet of feed exchanger.
First regulating valve also can be set in walking feeding tube road (i.e. tube side) exit of feed exchanger.
First regulating valve also can be set in walking feeding tube road (i.e. shell side) exit of discharging cooler.
Possessed beneficial effect is the utility model compared with prior art:
Dehydrogenating propane reaction discharging heat-exchange system described in the utility model, passes through regulating valve, temperature monitoring sensor and heat
The setting of relay can effectively solve the problems, such as two groups of heat exchange unit bring bias currents, realize the timely amendment to bias current, guarantee
The macrocyclic safe and stable operation of system, improves the operating flexibility of device, has important practical significance.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model embodiment one；
Fig. 2 is the structural schematic diagram of the utility model embodiment two；
Fig. 3 is the structural schematic diagram of the utility model embodiment three.
In figure: 1, reactor；2, feed exchanger；3, discharge cooler；4, surge tank；5, the first regulating valve；6, second
Regulating valve；7, temperature monitoring sensor；8, hot relay；9, cold material discharging pipeline；10, cold material feeding pipe；11, cooling
Recirculated water water outlet；12, cooling circulating water water inlet.
Specific embodiment
The utility model is described further below with reference to embodiment:
Embodiment one:
As shown in Figure 1, dehydrogenating propane reaction discharging heat-exchange system described in the utility model, including reactor 1, reactor
1 is connected with heat exchange unit and surge tank 4 in turn by walking feeding tube road, and surge tank 4 is followed by compressor, and heat exchange unit includes that charging is changed
Hot device 2 and the concatenated discharging cooler 3 of walking feeding tube road tube side with feed exchanger 2, the heat exchange unit are arranged two groups, and two
Group heat exchange unit is in parallel, is arranged symmetrically in walking feeding tube road two sides, the inlet/outlet pipe of the export pipeline of reactor, feed exchanger
Road, discharge cooler the import and export pipeline be arranged symmetrically.The walking feeding tube road (i.e. tube side) of two feed exchangers 2 therein enters
It is equipped with the first regulating valve 5 at mouthful, the second regulating valve 6 is equipped at the shell side inlet of two feed exchangers 2, two chargings are changed
Walking feeding tube road (i.e. tube side) outlet of hot device 2 is equipped with temperature monitoring sensor 7, the first regulating valve 5, the second regulating valve 6 and temperature
Degree monitoring sensor 7 is connected with hot relay 8.
In use process, cold material (raw material propane from ice chest or (and) iso-butane) from cold material feeding pipe 10 into
Enter 2 shell side of feed exchanger, is flowed out after exchanging heat from cold material discharging pipeline 9；Cooling circulating water is from cooling circulating water water inlet
12 enter discharging 3 tube side of cooler, flow out after exchanging heat from cooling circulating water water outlet 11.Two 2 walking feeding tubes of feed exchanger
The display of temperature monitoring sensor 7 of road (i.e. tube side) outlet simultaneously gives the temperature information pick-up monitored to hot relay 8, works as the temperature difference
When higher than setting value, 5 aperture of the first regulating valve that hot relay 8 controls that higher side of temperature reduces, and 6 aperture of the second regulating valve increases
Greatly, reduce the flow of thermal material, the flow of cold material increases；That lower side of temperature is opposite.Until two feed exchangers 2
Walking feeding tube road (i.e. tube side) outlet temperature difference is restored to normal value, and adjusting terminates.
Walking feeding tube road (i.e. tube side) exit of feed exchanger 2 is arranged in two: the first regulating valve 5 of embodiment, remaining is same
Embodiment one.
Walking feeding tube road (i.e. shell side) exit of discharging cooler 3 is arranged in three: the first regulating valve 5 of embodiment, remaining is same
Embodiment one.
Claims (4)
1. a kind of dehydrogenating propane reaction discharging heat-exchange system, including reactor (1), reactor (1) are successively connected by walking feeding tube road
Be connected to heat exchange unit and surge tank (4), surge tank (4) is followed by compressor, heat exchange unit include feed exchanger (2) and with charging
The concatenated discharging cooler (3) in the walking feeding tube road of heat exchanger (2), the heat exchange unit are arranged two groups, and two groups of heat exchange units are simultaneously
Connection, is arranged symmetrically in walking feeding tube road two sides, it is characterised in that: the walking feeding tube road of two groups of heat exchange units is equipped with the first regulating valve
(5), it is equipped with the second regulating valve (6) on the shell side pipeline of two feed exchangers (2), two feed exchangers (2) walk material
Tube outlet is equipped with temperature monitoring sensor (7), the first regulating valve (5), the second regulating valve (6) and temperature monitoring sensor
(7) hot relay (8) are all connected with.
2. dehydrogenating propane reaction discharging heat-exchange system according to claim 1, it is characterised in that: first regulating valve
(5) it is arranged in the walking feeding tube road inlet of feed exchanger (2).
3. dehydrogenating propane reaction discharging heat-exchange system according to claim 1, it is characterised in that: first regulating valve
(5) it is arranged at the walking feeding tube way outlet of feed exchanger (2).
4. dehydrogenating propane reaction discharging heat-exchange system according to claim 1, it is characterised in that: first regulating valve
(5) it is arranged at the walking feeding tube way outlet of discharging cooler (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821858308.XU CN209197561U (en) | 2018-11-09 | 2018-11-09 | Dehydrogenating propane reaction discharging heat-exchange system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821858308.XU CN209197561U (en) | 2018-11-09 | 2018-11-09 | Dehydrogenating propane reaction discharging heat-exchange system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209197561U true CN209197561U (en) | 2019-08-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821858308.XU Active CN209197561U (en) | 2018-11-09 | 2018-11-09 | Dehydrogenating propane reaction discharging heat-exchange system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111013514A (en) * | 2019-12-18 | 2020-04-17 | 安徽昊源化工集团有限公司 | Energy-saving and consumption-reducing system for recycling heat of styrene product produced by ethylbenzene dehydrogenation |
-
2018
- 2018-11-09 CN CN201821858308.XU patent/CN209197561U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111013514A (en) * | 2019-12-18 | 2020-04-17 | 安徽昊源化工集团有限公司 | Energy-saving and consumption-reducing system for recycling heat of styrene product produced by ethylbenzene dehydrogenation |
| CN111013514B (en) * | 2019-12-18 | 2024-05-14 | 安徽昊源化工集团有限公司 | Energy-saving and consumption-reducing system for heat recovery of styrene product produced by ethylbenzene dehydrogenation |
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