CN216946221U - Constant temperature device for hydrogen peroxide production by anthraquinone process - Google Patents
Constant temperature device for hydrogen peroxide production by anthraquinone process Download PDFInfo
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- CN216946221U CN216946221U CN202220331348.9U CN202220331348U CN216946221U CN 216946221 U CN216946221 U CN 216946221U CN 202220331348 U CN202220331348 U CN 202220331348U CN 216946221 U CN216946221 U CN 216946221U
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- regulating valve
- thermometer
- constant temperature
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- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 title claims abstract description 42
- 238000000034 method Methods 0.000 title claims abstract description 23
- PYKYMHQGRFAEBM-UHFFFAOYSA-N anthraquinone Natural products CCC(=O)c1c(O)c2C(=O)C3C(C=CC=C3O)C(=O)c2cc1CC(=O)OC PYKYMHQGRFAEBM-UHFFFAOYSA-N 0.000 title claims abstract description 19
- 150000004056 anthraquinones Chemical class 0.000 title claims abstract description 19
- 238000004519 manufacturing process Methods 0.000 title description 8
- 239000001257 hydrogen Substances 0.000 claims abstract description 153
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 153
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 150
- 230000001105 regulatory effect Effects 0.000 claims abstract description 76
- 239000007788 liquid Substances 0.000 claims abstract description 61
- 230000008929 regeneration Effects 0.000 claims abstract description 21
- 238000011069 regeneration method Methods 0.000 claims abstract description 21
- 238000005984 hydrogenation reaction Methods 0.000 claims abstract description 13
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 7
- 239000007789 gas Substances 0.000 claims description 2
- 239000002826 coolant Substances 0.000 claims 2
- 230000008676 import Effects 0.000 claims 1
- 150000002431 hydrogen Chemical class 0.000 abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 3
- 239000000110 cooling liquid Substances 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- AZQWKYJCGOJGHM-UHFFFAOYSA-N 1,4-benzoquinone Chemical compound O=C1C=CC(=O)C=C1 AZQWKYJCGOJGHM-UHFFFAOYSA-N 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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- Separation By Low-Temperature Treatments (AREA)
Abstract
The utility model provides a hydrogen constant temperature device for producing hydrogen peroxide by an anthraquinone process, which comprises a hydrogen buffer tank, wherein a hydrogen filter is arranged in the hydrogen buffer tank, a hydrogen main pipeline is connected with a hydrogen preheater through a hydrogen inlet pipeline, the hydrogen preheater is connected with a hydrogen main pipeline through a hydrogen outlet pipeline, a first regulating valve is arranged on the upstream of the connection point of the hydrogen main pipeline and the hydrogen inlet pipeline, a second regulating valve is arranged on the downstream of the connection point of the hydrogen main pipeline and the hydrogen inlet pipeline, a third regulating valve is arranged on the hydrogen inlet pipeline, a fourth regulating valve and a second thermometer are arranged on the hydrogen outlet pipeline, a third thermometer is arranged on the downstream of the connection point of the hydrogen outlet pipeline and the hydrogen main pipeline, a fifth regulating valve and a fourth thermometer are arranged on a regenerated liquid inlet pipeline, and a regenerated liquid outlet pipeline is connected with a regenerated liquid main pipeline. The device utilizes the regeneration liquid to heat up hydrogen, carries out temperature control to the feeding hydrogen of hydrogenation tower, can reduce simultaneously and carry out refrigerated circulating water quantity to the regeneration liquid.
Description
Technical Field
The utility model relates to the field of energy conservation and automatic control of hydrogen peroxide production, in particular to a hydrogen constant temperature device for hydrogen peroxide production by an anthraquinone process.
Background
In the running process of a system for producing hydrogen peroxide by an anthraquinone method, the feeding temperature of a hydrogenation tower fluctuates along with the temperature difference between day and night, so that the stability of the reaction is greatly influenced, the temperature of hydrogen can reach more than 30 ℃ in the daytime, and can be as low as 0 ℃ at night, the reaction working condition of the system is periodically fluctuated due to the instability of the feeding temperature, the long-period stable running of the device is influenced, the method is particularly obvious in the process of 2-section tower hydrogenation towers of the device, and the running period of the hydrogenation tower seriously restricts the running level of the device because no standby tower is provided. The constant temperature device for producing hydrogen peroxide by generating quinone is urgently needed to be researched, the reaction condition of the hydrogenation tower is improved on the premise of ensuring safety, the operation period is prolonged, and the production efficiency is improved.
Disclosure of Invention
The utility model aims to solve the technical problem of providing a hydrogen peroxide constant temperature device produced by an anthraquinone method, which utilizes the regenerated liquid in hydrogen peroxide hydrogen produced by the anthraquinone method to heat hydrogen, controls the temperature of the fed hydrogen of a hydrogenation tower and can reduce the consumption of circulating water for cooling the regenerated liquid.
In order to solve the technical problems, the technical scheme adopted by the utility model is as follows: a hydrogen constant temperature device for hydrogen peroxide production by an anthraquinone process comprises a hydrogen buffer tank, wherein a hydrogen filter is arranged in the hydrogen buffer tank, hydrogen in the hydrogen buffer tank is conveyed to a hydrogenation tower through a hydrogen main pipeline, a first thermometer is arranged at a gas outlet in the hydrogen buffer tank, the hydrogen main pipeline is connected with an inlet of a hydrogen preheater through a hydrogen inlet pipeline, an outlet of the hydrogen preheater is connected with the hydrogen main pipeline through a hydrogen outlet pipeline, a first regulating valve is arranged on the upstream of the connection point of the hydrogen main pipeline and the hydrogen inlet pipeline, a second regulating valve is arranged on the downstream of the connection point of the hydrogen main pipeline and the hydrogen inlet pipeline, a third regulating valve is arranged on the hydrogen inlet pipeline, a fourth regulating valve and a second thermometer are arranged on the hydrogen outlet pipeline, a third thermometer is arranged on the downstream of the connection point of the hydrogen outlet pipeline and the hydrogen main pipeline, and a cooling liquid inlet of the hydrogen preheater is connected with a regenerated liquid inlet pipeline, the cooling liquid outlet of the hydrogen preheater is connected with a regenerated liquid outlet pipeline, a fifth regulating valve and a fourth thermometer are arranged on the regenerated liquid inlet pipeline, and the regenerated liquid outlet pipeline is connected with a regenerated liquid main pipeline.
In a preferred embodiment, the hydrogen inlet line and the hydrogen outlet line are respectively provided with a second pressure gauge and a third pressure gauge.
In a preferred scheme, the hydrogen buffer tank is provided with a first pressure gauge.
In a preferable scheme, the hydrogen main pipeline is provided with a bypass pipeline, the connection points of the bypass pipeline and the hydrogen main pipeline are respectively arranged at the upstream of the first regulating valve and the downstream of the second regulating valve, the bypass pipeline is provided with a sixth regulating valve, and the downstream of the second regulating valve is provided with a seventh regulating valve.
In a preferred scheme, a fourth pressure gauge and a first flow meter are arranged at the downstream of the seventh regulating valve.
In a preferred embodiment, a fifth pressure gauge is provided on the bypass line.
In a preferred scheme, an eighth regulating valve, a fifth thermometer and a second flowmeter are arranged on the regeneration liquid outlet pipeline.
In a preferable scheme, the regeneration liquid inlet pipeline is connected with an emptying pipeline, and an emptying valve is arranged on the emptying pipeline.
In a preferred scheme, a flow regulating valve is arranged on the main regenerated liquid pipeline, and a sixth thermometer is arranged on the downstream of a connection point of the main regenerated liquid pipeline and the regenerated liquid outlet pipeline.
The hydrogen constant temperature device for producing hydrogen peroxide by the anthraquinone process has the following technical effects:
(1) the flow of hydrogen entering the hydrogen preheater is controlled, so that the temperature of the hydrogen can be regulated and controlled, and expansion leakage caused by high temperature of the hydrogen is avoided.
(2) Through controlling the flow of the regenerated liquid entering the hydrogen preheater, the temperature of the regenerated liquid can be regulated and controlled, and the phenomenon that the regenerated liquid is separated out to block a pipeline due to low temperature of the regenerated liquid is avoided.
(3) The regenerated liquid is used as a heat source, the temperature of the hydrogen can be obviously increased, the production working condition is stabilized, the hydrogen temperature in the hydrogenation tower can be controlled at constant temperature through matching control of the flow rate of the regenerated liquid and the flow rate of the hydrogen and optimization design.
(4) The hydrogen with lower temperature is used as a cold source, so that the temperature of the regenerated liquid can be obviously reduced, the consumption of the regenerated liquid cooling circulating water is reduced, and the energy consumption is saved.
(5) Through the third pressure gauge, the overpressure protection safety interlock is realized, the regenerated liquid heat source is cut off in time to withdraw from the system, and the system operation safety risk is greatly reduced.
Drawings
The utility model is further illustrated with reference to the following figures and examples:
FIG. 1 is a schematic structural view of the present invention;
in the figure: the hydrogen gas buffer tank 1, the hydrogen filter 2, the hydrogen main line 3, the first thermometer 4, the hydrogen inlet line 5, the hydrogen preheater 6, the hydrogen outlet line 7, the first regulating valve 8, the second regulating valve 9, the third regulating valve 10, the fourth regulating valve 11, the second thermometer 12, the third thermometer 13, the regeneration liquid inlet line 14, the regeneration liquid outlet line 15, the fifth regulating valve 16, the fourth thermometer 17, the regeneration liquid main line 18, the first pressure gauge 19, the second pressure gauge 20, the third pressure gauge 21, the bypass line 22, the sixth regulating valve 23, the seventh regulating valve 24, the fourth pressure gauge 25, the first flow meter 26, the fifth pressure gauge 27, the eighth regulating valve 28, the fifth thermometer 29, the second flow meter 30, the evacuation line 31, the evacuation valve 32, the flow regulating valve 33, and the sixth thermometer 34.
Detailed Description
As shown in fig. 1, a hydrogen constant temperature device for hydrogen peroxide production by anthraquinone process, comprising a hydrogen buffer tank 1, a hydrogen filter 2 is arranged in the hydrogen buffer tank 1, hydrogen in the hydrogen buffer tank 1 is conveyed to a hydrogenation tower through a hydrogen main pipeline 3, a first thermometer 4 is arranged at an air outlet in the hydrogen buffer tank 1, the hydrogen main pipeline 3 is connected with an inlet of a hydrogen preheater 6 through a hydrogen inlet pipeline 5, an outlet of the hydrogen preheater 6 is connected with the hydrogen main pipeline 3 through a hydrogen outlet pipeline 7, a first regulating valve 8 is arranged at the upstream of the connection point of the hydrogen main pipeline 3 and the hydrogen inlet pipeline 5, a second regulating valve 9 is arranged at the downstream of the connection point of the hydrogen main pipeline 3 and the hydrogen inlet pipeline 5, a third regulating valve 10 is arranged at the hydrogen inlet pipeline 5, a fourth regulating valve 11 and a second thermometer 12 are arranged at the hydrogen outlet pipeline 7, a third thermometer 13 is arranged at the downstream of the connection point of the hydrogen outlet pipeline 7 and the hydrogen main pipeline 3, the cooling liquid inlet of the hydrogen preheater 6 is connected with a regenerated liquid inlet pipeline 14, the cooling liquid outlet of the hydrogen preheater 6 is connected with a regenerated liquid outlet pipeline 15, the regenerated liquid inlet pipeline 14 is provided with a fifth regulating valve 16 and a fourth thermometer 17, and the regenerated liquid outlet pipeline 15 is connected with a regenerated liquid main pipeline 18.
The first thermometer 4 detects the temperature of the hydrogen discharged from the hydrogen buffer tank 1, when the temperature is too low, the third regulating valve 10 and the fourth regulating valve 11 are opened, the hydrogen flows through the hydrogen preheater 6 to preheat the hydrogen, the second thermometer 12 detects the temperature of the preheated hydrogen, and the staying time of the hydrogen in the hydrogen preheater 6 and the temperature of the preheated hydrogen can be controlled by controlling the opening degree of the third regulating valve 10 and the fourth regulating valve 11; the preheated hydrogen is mixed with the non-preheated hydrogen by the simultaneous second regulating valve 9, and the mixed hydrogen is subjected to temperature monitoring by the third thermometer 13.
The hydrogen from the outer tube passes through the hydrogen buffer tank 1, enters the inlet at the bottom of the tubular side of the hydrogen preheater 6 through the first regulating valve 8 and the third regulating valve 10 after being treated by the hydrogen filter 2, is heated by the regenerated liquid and then comes out from the upper part of the tubular side of the hydrogen preheater, and the fourth regulating valve 11 enters the hydrogenation tower. The regenerated liquid which is conveyed by the regenerated liquid pump and is controlled to 50-55 ℃ enters the lower part of the shell pass of the hydrogen preheater 6 through the fifth regulating valve 16, flows out from the upper part of the shell pass after being cooled by hydrogen, is converged with the main process regenerated liquid passing through the flow regulating valve 33, and enters the hydrogenation tower.
Preferably, the hydrogen inlet line 5 and the hydrogen outlet line 7 are provided with a second pressure gauge 20 and a third pressure gauge 21, respectively.
The hydrogen buffer tank 1 is provided with a first pressure gauge 19.
Through setting up the pressure gauge, monitor the pressure of each link, prevent that pressure from rising too fast.
Preferably, the hydrogen main line 3 is provided with a bypass line 22, the connection points of the bypass line 22 and the hydrogen main line 3 are respectively arranged at the upstream of the first regulating valve 8 and the downstream of the second regulating valve 9, the bypass line 22 is provided with a sixth regulating valve 23, and the downstream of the second regulating valve 9 is provided with a seventh regulating valve 24.
By providing the bypass line 22, when heating of hydrogen gas is not required, the first and second regulating valves 8 and 9 are closed, and the sixth regulating valve 23 is opened to directly supply hydrogen gas.
Preferably, a fourth pressure gauge 25 and a first flow meter 26 are provided downstream of the seventh regulating valve 24.
The supply pressure and flow of hydrogen are monitored by the fourth pressure gauge 25 and the first flow meter 26, and are conveniently controlled by each regulating valve, so that the pressure is prevented from being too high.
Preferably, a fifth pressure gauge 27 is provided on the bypass line 22. The bypass line 22 is pressure-detected by a fifth pressure gauge 27.
Preferably, an eighth regulating valve 28, a fifth thermometer 29 and a second flowmeter 30 are provided on the regeneration liquid outlet line 15. The main regeneration liquid line 18 is provided with a flow rate regulating valve 33, and a sixth thermometer 34 is provided downstream of the connection point of the main regeneration liquid line 18 and the regeneration liquid outlet line 15.
The flow of the regenerated liquid outlet pipeline 15 is adjusted through the eighth adjusting valve 28, and is matched with the fifth adjusting valve 16, so that the temperature of the regenerated liquid can be adjusted and controlled, and the phenomenon that the regenerated liquid is separated out to block a pipeline due to low temperature of the regenerated liquid is avoided.
Preferably, the regeneration liquid inlet line 14 is connected to an evacuation line 31, and an evacuation valve 32 is disposed on the evacuation line 31.
When the second thermometer 12 or the third thermometer 13 detects an excessively fast temperature, the hydrogen preheater 6 is quickly exhausted by stopping the circulating flow of the regeneration liquid in the hydrogen preheater 6 by closing the fifth regulating valve 16 and the eighth regulating valve 28, while opening the exhaust valve 32.
By arranging the second thermometer 12 and the third thermometer 13, when the temperature at the detection point rises too fast, the heating source of the regenerated liquid is cut off rapidly, the fifth regulating valve 16 and the eighth regulating valve 28 are closed, and the emptying valve 32 is opened for emptying; through the arrangement of the first pressure gauge 19, the second pressure gauge 20, the third pressure gauge 21, the fourth pressure gauge 25 and the fifth pressure gauge 27, the third pressure gauge 21 is provided with a safety interlock system with the excessive pressure rising, the overpressure at the detection point of the third pressure gauge 21 or the overtemperature at the electrical detection point of the second thermometer 12 quickly opens the sixth regulating valve 23 and the seventh regulating valve 24, and closes the first regulating valve 8, the second regulating valve 9 and the third regulating valve 10.
Claims (9)
1. A hydrogen constant temperature device for producing hydrogen peroxide by an anthraquinone process is characterized in that: comprises a hydrogen buffer tank (1), a hydrogen filter (2) is arranged in the hydrogen buffer tank (1), hydrogen in the hydrogen buffer tank (1) is conveyed to a hydrogenation tower through a hydrogen main pipeline (3), a gas outlet in the hydrogen buffer tank (1) is provided with a first thermometer (4), the hydrogen main pipeline (3) is connected with an inlet of a hydrogen preheater (6) through a hydrogen inlet pipeline (5), an outlet of the hydrogen preheater (6) is connected with the hydrogen main pipeline (3) through a hydrogen outlet pipeline (7), a first regulating valve (8) is arranged on the upstream of the connection point of the hydrogen main pipeline (3) and the hydrogen inlet pipeline (5), a second regulating valve (9) is arranged on the downstream of the connection point of the hydrogen main pipeline (3) and the hydrogen inlet pipeline (5), a third regulating valve (10) is arranged on the hydrogen inlet pipeline (5), a fourth regulating valve (11) and a second thermometer (12) are arranged on the hydrogen outlet pipeline (7), the low reaches of the tie point of hydrogen outlet pipeline (7) and hydrogen main line (3) are equipped with third thermometer (13), the coolant liquid import and the regeneration liquid inlet pipeline (14) of hydrogen preheater (6) are connected, the coolant liquid export and the regeneration liquid outlet pipeline (15) of hydrogen preheater (6) are connected, be equipped with fifth governing valve (16) and fourth thermometer (17) on regeneration liquid inlet pipeline (14), regeneration liquid outlet pipeline (15) are connected with regeneration liquid main line (18).
2. The constant temperature device for producing hydrogen peroxide by the anthraquinone process according to claim 1, which is characterized in that: and a second pressure gauge (20) and a third pressure gauge (21) are respectively arranged on the hydrogen inlet pipeline (5) and the hydrogen outlet pipeline (7).
3. The constant temperature device for producing hydrogen peroxide by the anthraquinone process according to claim 1, which is characterized in that: the hydrogen buffer tank (1) is provided with a first pressure gauge (19).
4. The hydrogen constant temperature device for producing hydrogen peroxide by the anthraquinone process according to claim 1, which is characterized in that: the hydrogen main pipeline (3) is provided with a bypass pipeline (22), the connection points of the bypass pipeline (22) and the hydrogen main pipeline (3) are respectively arranged at the upstream of the first regulating valve (8) and the downstream of the second regulating valve (9), the bypass pipeline (22) is provided with a sixth regulating valve (23), and the downstream of the second regulating valve (9) is provided with a seventh regulating valve (24).
5. The hydrogen constant temperature device for producing hydrogen peroxide by the anthraquinone process according to claim 4, which is characterized in that: and a fourth pressure gauge (25) and a first flow meter (26) are arranged at the downstream of the seventh regulating valve (24).
6. The hydrogen constant temperature device for producing hydrogen peroxide by the anthraquinone process according to claim 4, which is characterized in that: and a fifth pressure gauge (27) is arranged on the bypass pipeline (22).
7. The constant temperature device for producing hydrogen peroxide by the anthraquinone process according to claim 1, which is characterized in that: and an eighth regulating valve (28), a fifth thermometer (29) and a second flowmeter (30) are arranged on the regenerated liquid outlet pipeline (15).
8. The hydrogen constant temperature device for producing hydrogen peroxide by the anthraquinone process according to claim 1, which is characterized in that: the regenerated liquid inlet pipeline (14) is connected with an emptying pipeline (31), and an emptying valve (32) is arranged on the emptying pipeline (31).
9. The constant temperature device for producing hydrogen peroxide by the anthraquinone process according to claim 1, which is characterized in that: and a flow regulating valve (33) is arranged on the regeneration liquid main pipeline (18), and a sixth thermometer (34) is arranged at the downstream of the connection point of the regeneration liquid main pipeline (18) and the regeneration liquid outlet pipeline (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220331348.9U CN216946221U (en) | 2022-02-18 | 2022-02-18 | Constant temperature device for hydrogen peroxide production by anthraquinone process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220331348.9U CN216946221U (en) | 2022-02-18 | 2022-02-18 | Constant temperature device for hydrogen peroxide production by anthraquinone process |
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| Publication Number | Publication Date |
|---|---|
| CN216946221U true CN216946221U (en) | 2022-07-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220331348.9U Active CN216946221U (en) | 2022-02-18 | 2022-02-18 | Constant temperature device for hydrogen peroxide production by anthraquinone process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216946221U (en) |
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2022
- 2022-02-18 CN CN202220331348.9U patent/CN216946221U/en active Active
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