CN203754659U - Differential pressure safety interlock for coal-water slurry pressurized gasification device gasifier - Google Patents
Differential pressure safety interlock for coal-water slurry pressurized gasification device gasifier Download PDFInfo
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- CN203754659U CN203754659U CN201420044349.0U CN201420044349U CN203754659U CN 203754659 U CN203754659 U CN 203754659U CN 201420044349 U CN201420044349 U CN 201420044349U CN 203754659 U CN203754659 U CN 203754659U
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- coal slurry
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- differential pressure
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 20
- 238000002309 gasification Methods 0.000 title claims abstract description 18
- 239000002002 slurry Substances 0.000 title claims abstract description 16
- 239000003250 coal slurry Substances 0.000 claims abstract description 95
- 230000007246 mechanism Effects 0.000 claims abstract description 64
- 238000000034 method Methods 0.000 claims abstract description 59
- 230000008569 process Effects 0.000 claims abstract description 56
- 230000009467 reduction Effects 0.000 claims description 52
- 239000003245 coal Substances 0.000 claims description 17
- 230000003111 delayed effect Effects 0.000 claims description 17
- 230000009471 action Effects 0.000 abstract description 5
- 239000007789 gas Substances 0.000 description 47
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 12
- 239000001301 oxygen Substances 0.000 description 12
- 229910052760 oxygen Inorganic materials 0.000 description 12
- 238000005516 engineering process Methods 0.000 description 5
- 238000005259 measurement Methods 0.000 description 5
- 206010001541 Akinesia Diseases 0.000 description 4
- 238000000889 atomisation Methods 0.000 description 4
- 238000004880 explosion Methods 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 230000001052 transient effect Effects 0.000 description 3
- 206010052428 Wound Diseases 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 238000005474 detonation Methods 0.000 description 2
- 150000002978 peroxides Chemical class 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003818 cinder Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
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- Feeding And Controlling Fuel (AREA)
Abstract
The utility model discloses a differential pressure safety interlock for a coal-water slurry pressurized gasification device gasifier. The differential pressure safety interlock comprises a coal slurry pressure measuring point (5) arranged on a coal slurry pipeline (2) at the outlet part of a high-pressure coal slurry pump (1) and a process gas pressure measuring point (6) arranged on a process gas pipeline (4) at the outlet part of a gasifier (3), wherein the coal slurry pressure measuring point (5) and the process gas pressure measuring point (6) are respectively connected with a differential pressure transmitter (7) by virtue of a signal line; the differential pressure transmitter (7) is connected with a differential pressure judgment mechanism (8) by virtue of a signal line; the differential pressure judgment mechanism (8) is connected with a control system (9) by virtue of a signal line. The differential pressure safety interlock disclosed by the utility model can be used for removing the major source of hidden danger of a gasifier system caused by coal slurry leakage or burner failure, and further improving the safety property of the gasifier system; by virtue of arranging a two-out-three voting mechanism, a time delay mechanism and the pressure measuring points, the reliability of interlocking actions can be improved; the differential pressure safety interlock has the characteristics of easiness for implementation and low investment, and is suitable for popularization and application.
Description
Technical field
The utility model relates to the vapourizing furnace safety technique in water coal slurry pressure gasification field, and concrete is the pressure reduction safety interlocking for Coal-water Slurry Pressurized Gasification Unit vapourizing furnace that a kind of measurement by pressure reduction judges to improve gasified boiler system safety performance.
Background technology
Water coal slurry pressure gasification employing coal water slurry and high purity oxygen at high temperature (1250 ℃) are carried out partial oxidation reaction, for reparation technology gas.At present coal water slurry gasifying device arranges the high high safety interlocking of carbon ratio, mainly prevents from existing in reaction process the excessive risk of oxygen.But in production process, also may there is the problems such as coal slurry pipeline leakage, valve mishandle, under meter fault, cause process gas and pure oxygen to refund coal slurry pipeline through gasifier nozzle, cause vapourizing furnace and coal slurry pipeline thereof to be blasted; When gasifier nozzle is seriously denuded in addition, coal slurry atomization is bad, can cause gasified boiler system peroxide overtemperature or blast.
Generally, in water coal slurry pressure gasification process technology, the safety interlocking of coal serous system mainly contains: coal slurry flow low (3 select 2 votings) vapourizing furnace interlock shutdown, oxygen and high (3 select 2 votings) the vapourizing furnace interlock shutdown of coal slurry ratio and high-pressure coal slurry pump shutdown vapourizing furnace interlock shutdown etc.These safety interlockings have increased the security of gasified boiler system operation to a certain extent, but can not solve following problem: 1) when the coal slurry pipeline between gentleization of high-pressure coal slurry pump discharge stove burner leaks, opens by mistake the coal slurry recycle valve unlatching of high-pressure coal pulp pump outlet showering guilding valve or high-pressure coal slurry pump discharge, the akinesia of above-mentioned vapourizing furnace safety interlock system, now in vapourizing furnace, high-temperature high-pressure craft gas and oxygen can flow backward to coal slurry pipeline, cause coal slurry pipeline detonation.(2008, just once there is the coal slurry pipeline explosion hazard the causing because operator's mistake opens the high-pressure coal pulp pump outlet guide pouring moving in certain coal water slurry gasifying device, accident causes dead three wounds).2) when gasifier nozzle coal slurry passage is seriously denuded, coal slurry atomization is bad, the akinesia of above-mentioned vapourizing furnace safety interlock system, and this may cause excessive oxygen to enter carbon washing tower, cause explosion hazard.
Generally, in water coal slurry pressure gasification process technology, the safety interlocking of coal serous system mainly contains: coal slurry flow low (3 select 2 votings) vapourizing furnace interlock shutdown, oxygen and high (3 select 2 votings) the vapourizing furnace interlock shutdown of coal slurry ratio and high-pressure coal slurry pump shutdown vapourizing furnace interlock shutdown etc.These safety interlockings have increased the security of gasified boiler system operation to a certain extent, but can not solve following problem: 1) when the coal slurry pipeline between gentleization of high-pressure coal slurry pump discharge stove burner leaks, opens by mistake the coal slurry recycle valve unlatching of high-pressure coal pulp pump outlet showering guilding valve or high-pressure coal slurry pump discharge, the akinesia of above-mentioned vapourizing furnace safety interlock system, now in vapourizing furnace, high-temperature high-pressure craft gas and oxygen can flow backward to coal slurry pipeline, cause coal slurry pipeline detonation.(2008, just once there is the coal slurry pipeline explosion hazard the causing because operator's mistake opens the high-pressure coal pulp pump outlet guide pouring moving in certain coal water slurry gasifying device, accident causes dead three wounds).2) when gasifier nozzle coal slurry passage is seriously denuded, coal slurry atomization is bad, the akinesia of above-mentioned vapourizing furnace safety interlock system, and this may cause excessive oxygen to enter carbon washing tower, cause explosion hazard.
By patent retrieval, following some patents have been found: 1) a kind of safety shutdown interlocking of Texaco gasification furnace (patent of invention, the patent No.: CN 102010754 A); 2) interlocking system for safety skipping of Texaco gasifier (utility model patent, the patent No.: CN 201762292 U); The first two patent is all to adopt the pressure of high-pressure coal slurry pump intake to jump spoke part as vapourizing furnace interlocking; 3) a kind of vapourizing furnace furnace wall temperature over temperature interlock protector (patent No.: CN 202989077 U), this utility model patent adopts gasification surface thermocouple to jump spoke part as vapourizing furnace interlocking; 4) a kind of interlocking protective system (patent No.: CN 202989078 U) that prevents vapourizing furnace peroxide overtemperature, this utility model patent is jumped spoke part by the composition of synthetic gas being carried out to the result of on-line analysis as vapourizing furnace interlocking.
Summary of the invention
The purpose of this utility model is the defect existing for prior art, providing a kind of interlocks by the pressure reduction of coal slurry and process gas is set for Coal-water Slurry Pressurized Gasification Unit, on high-pressure coal pulp pump outlet line and on gasification outlet of still process gas pipeline, teletransmission pressure tap is set respectively, utilize differential pressure transmitter or pressure transmitter measurement and calculate both pressure reduction, when this pressure difference is during lower than set(ting)value, vapourizing furnace interlock shutdown.
The purpose of this utility model solves by the following technical programs:
A kind of pressure reduction safety interlocking for Coal-water Slurry Pressurized Gasification Unit vapourizing furnace, it is characterized in that described pressure reduction safety interlocking comprises coal slurry pressure tap on the coal slurry pipeline that is arranged on high-pressure coal pulp pump exit, is arranged on the process gas pressure tap on the process gas pipeline in vapourizing furnace exit, coal slurry pressure tap is connected with differential pressure transmitter by signal wire respectively with process gas pressure tap, differential pressure transmitter is connected with pressure reduction decision mechanism by signal wire, and pressure reduction decision mechanism is connected with Controlling System by signal wire.
Described coal slurry pressure tap comprises the first coal slurry pressure tap, the second coal slurry pressure tap and the 3rd coal slurry pressure tap, process gas pressure tap comprises the first process gas pressure tap, the second process gas pressure tap and the 3rd process gas pressure tap, the first described coal slurry pressure tap is connected with the first differential pressure transmitter by signal wire respectively with the first process gas pressure tap, the second coal slurry pressure tap is connected with the second differential pressure transmitter by signal wire respectively with the second process gas pressure tap, the 3rd coal slurry pressure tap is connected with the 3rd differential pressure transmitter by signal wire respectively with the 3rd process gas pressure tap, the first differential pressure transmitter, the second differential pressure transmitter and the 3rd differential pressure transmitter are respectively by signal wire and the first pressure reduction decision mechanism, the second pressure reduction decision mechanism is connected with the 3rd pressure reduction decision mechanism, the first pressure reduction decision mechanism, parallel with one another and all by signal wire, be connected with Controlling System between the second pressure reduction decision mechanism and the 3rd pressure reduction decision mechanism.
In described Controlling System, be provided with three and select two voting mechanism and time delayed mechanisms, three select and between two voting mechanisms and time delayed mechanism, by signal wire, are connected and three select before two voting mechanisms are positioned at time delayed mechanism.
Described differential pressure transmitter is selected diaphragm type transmitter.
The utility model compared with prior art has the following advantages:
The utility model is interlocked by the pressure reduction of coal slurry and process gas is set, and disappears except when coal slurry leaks or the major safety risks of gasified boiler system during burner fault, further improves gasified boiler system security; Adopt reliable three settings of selecting two voting mechanisms, time delayed mechanism and pressure tap, avoided high temperature and obstruction, improved the reliability of interlocking action, avoided the flase operation causing because of single measurement point fault or system transient fluctuation; This pressure reduction safety interlocking is easily implemented, less investment, adopts the conventional instruments such as diaphragm type pressure difference transmitter (pressure unit), suitable promoting the use of.
Accompanying drawing explanation
Accompanying drawing 1 is principle assumption diagram of the present utility model.
Wherein: 1-high-pressure coal pulp pump; 2-coal slurry pipeline; 3-vapourizing furnace; 4-process gas pipeline; 5-coal slurry pressure tap; 5-1-the first coal slurry pressure tap; 5-2-the second coal slurry pressure tap; 5-3-three coal slurry pressure tap; 6-process gas pressure tap; 6-1-the first process gas pressure tap; 6-2-the second process gas pressure tap; 6-3-three process gas pressure tap; 7-differential pressure transmitter; 7-1-the first differential pressure transmitter; 7-2-the second differential pressure transmitter; 7-3-three differential pressure transmitter; 8-pressure reduction decision mechanism; 8-1-the first pressure reduction decision mechanism; 8-2-the first pressure reduction decision mechanism; 8-3-three pressure reduction decision mechanism; 9-Controlling System; 10-three select two voting mechanisms; 11-time delayed mechanism.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model is further described.
As shown in Figure 1: a kind of pressure reduction safety interlocking for Coal-water Slurry Pressurized Gasification Unit vapourizing furnace, it is characterized in that described pressure reduction safety interlocking comprises coal slurry pressure tap 5 on the coal slurry pipeline 2 that is arranged on high-pressure coal pulp pump 1 exit, is arranged on the process gas pressure tap 6 on the process gas pipeline 4 in vapourizing furnace 3 exits, coal slurry pressure tap 5 is connected with the differential pressure transmitter 7 of diaphragm type by signal wire respectively with process gas pressure tap 6, differential pressure transmitter 7 is connected with pressure reduction decision mechanism 8 by signal wire, and pressure reduction decision mechanism 8 is connected with Controlling System 9 by signal wire.For a step is more strengthened the accuracy of this pressure reduction safety interlocking, above-mentioned coal slurry pressure tap 5 comprises the first coal slurry pressure tap 5-1, the second coal slurry pressure tap 5-2 and the 3rd coal slurry pressure tap 5-3, and process gas pressure tap 6 comprises the first process gas pressure tap 6-1, the second process gas pressure tap 6-2 and the 3rd process gas pressure tap 6-3, and the distance between the first coal slurry pressure tap 5-1, the second coal slurry pressure tap 5-2 and the 3rd coal slurry pressure tap 5-3 and the burner of vapourizing furnace 3 shortens gradually, the distance between the outlet of the process gas of the first process gas pressure tap 6-1, the second process gas pressure tap 6-2 and the 3rd process gas pressure tap 6-3 and vapourizing furnace 3 expands gradually, the first above-mentioned coal slurry pressure tap 5-1 is connected with the first differential pressure transmitter 7-1 by signal wire respectively with the first process gas pressure tap 6-1, the second coal slurry pressure tap 5-2 is connected with the second differential pressure transmitter 7-2 by signal wire respectively with the second process gas pressure tap 6-2, the 3rd coal slurry pressure tap 5-3 is connected with the 3rd differential pressure transmitter 7-3 by signal wire respectively with the 3rd process gas pressure tap 6-3, the first differential pressure transmitter 7-1, the second differential pressure transmitter 7-2 and the 3rd differential pressure transmitter 7-3 are respectively by signal wire and the first pressure reduction decision mechanism 8-1, the second pressure reduction decision mechanism 8-2 is connected with the 3rd pressure reduction decision mechanism 8-3, the first pressure reduction decision mechanism 8-1, parallel with one another and all by signal wire, be connected with Controlling System 9 between the second pressure reduction decision mechanism 8-2 and the 3rd pressure reduction decision mechanism 8-3.On the basis of said mechanism, in this Controlling System 9, be provided with three and select two 10He time delayed mechanisms of voting mechanism 11, three select and between two 10He time delayed mechanisms of voting mechanism 11, by signal wire, are connected and three select before two voting mechanisms 10 are positioned at time delayed mechanism 11, and the realization of time delayed mechanism 11 is by a kind of logic of the modern instrument such as collective and distributive type control system DCS or Safety instrument system SIS FSC, to carry out function to realize; In the utility model, the main finger pressure of the effect of time delayed mechanism 11 is poor will just can trigger through the delay of certain hour interlocking action after reaching interlocking condition, avoids the indication of instrument mistake, fluctuation etc. to cause unnecessary interlock shutdown.In addition, the letter character in Fig. 1 has following meaning: PDT represents pressure difference transmitter, as diaphragm differential pressure transmitter; PDIA-indicate with the differential pressure of warning function; SS represents safety interlocking; L represents low warning; LL represents low warning.
When vapourizing furnace 3 normal operation, pressure reduction between coal slurry pipeline 2 and process gas pipeline 4 is mainly the cinder notch pressure reduction sum of burner annular space pressure reduction and the vapourizing furnace 3 of vapourizing furnace 3, when coal slurry pipeline 2 leaks or during burner fault, this pressure difference can significantly reduce and lower than normal value.The utility model is by getting three teletransmission pressure taps on the coal slurry pipeline 2 in high-pressure coal pulp pump 1 exit, on the process gas pipeline 4 in vapourizing furnace 3 exits, also get three teletransmission pressure taps, utilize differential pressure transmitter 7(or pressure unit) measure (exclusive disjunction) and go out three groups of pressure differences, in Controlling System 9 three while selecting two voting mechanisms 10 two groups of pressure reduction to be detected lower than set(ting)value, coal slurry pipeline 2 pressure anomalies are described, may generating process gas and oxygen flow backwards or have burner fault, at this moment Controlling System 9 is sent instruction parking, interlocking cuts off coal slurry and the oxygen that enters vapourizing furnace 3, termination makes to be swift in response, vapourizing furnace 3 emergencies.In order to prevent that coal slurry and process gas instrument root from taking over, stop up, differential pressure transmitter 7 between coal slurry pipeline 2 and process gas pipeline 4 adopts diaphragm differential pressure transmitter, pressure tap on coal slurry pipeline 2 is arranged on the top of coal slurry pipeline 2 and as far as possible near burner, the pressure tap of coal slurry pipeline 2 should not arrange root valve; Pressure tap on process gas pipeline 4 is arranged on the top of the process gas pipeline 4 in vapourizing furnace 3 exits, and far below fire box temperature and difficult obstruction, pressure differential detection is accurately sensitive; Can interlocking value be set according to the normal pressure difference value of the burner coal slurry passage of vapourizing furnace 3; For anti-locking system moment pressure-difference fluctuation causes the flase operation of interlocking, the 2-5 interlocking time delay of second can be set, in the interior time delayed mechanism 11 that arranges of Controlling System 9, three select the stop sign that two voting mechanisms 10 send just can send the instruction sending unit in Controlling System 9 to by time delayed mechanism 11, the setting of time delayed mechanism 11 has been avoided causing because of single measurement point fault or system transient fluctuation the flase operation of interlocking, and has improved the reliability of interlocking action.
Pressure reduction safety interlocking of the present utility model causes process gas or oxygen to flow backwards when coal slurry pipeline 2 occurs to leak, or burner broken is while causing coal slurry atomization bad, can cut off in time into media such as stove oxygen and coal water slurry, and the safety automation of realizing gasified boiler system stops; Pressure tap is arranged on coal slurry pipeline 2 and process gas pipeline 4, and the burner hearth pressure point that has solved vapourizing furnace 3 holds susceptible to plugging technical problem.
The utility model is interlocked by the pressure reduction being arranged on coal slurry pipeline 2 and process gas pipeline 4, disappears except when coal slurry leaks or the major safety risks of gasified boiler system during burner fault, further improves gasified boiler system security; Adopt reliable three settings of selecting two voting mechanisms 10, time delayed mechanism 11 and pressure tap, avoided high temperature and obstruction, improved the reliability of interlocking action, avoided the flase operation causing because of single measurement point fault or system transient fluctuation; Steering logic only need increase in device SIS system; This pressure reduction safety interlocking is easily implemented, less investment, adopts the conventional instruments such as diaphragm type pressure difference transmitter (pressure unit), suitable promoting the use of.
Above embodiment is only explanation technological thought of the present utility model, can not limit protection domain of the present utility model with this, every technological thought according to the utility model proposes, any change of doing on technical scheme basis, within all falling into the utility model protection domain; The technology that the utility model does not relate to all can be realized by prior art.
Claims (4)
1. the pressure reduction safety interlocking for Coal-water Slurry Pressurized Gasification Unit vapourizing furnace, it is characterized in that described pressure reduction safety interlocking comprises the coal slurry pressure tap (5) being arranged on high-pressure coal pulp pump (1) outlet coal slurry pipeline (2), be arranged on the process gas pressure tap (6) on vapourizing furnace (3) exit process gas pipeline (4), coal slurry pressure tap (5) is connected with differential pressure transmitter (7) by signal wire respectively with process gas pressure tap (6), differential pressure transmitter (7) is connected with pressure reduction decision mechanism (8) by signal wire, pressure reduction decision mechanism (8) is connected with Controlling System (9) by signal wire.
2. the pressure reduction safety interlocking for Coal-water Slurry Pressurized Gasification Unit vapourizing furnace according to claim 1, it is characterized in that described coal slurry pressure tap (5) comprises the first coal slurry pressure tap (5-1), the second coal slurry pressure tap (5-2) and the 3rd coal slurry pressure tap (5-3), process gas pressure tap (6) comprises the first process gas pressure tap (6-1), the second process gas pressure tap (6-2) and the 3rd process gas pressure tap (6-3), the first described coal slurry pressure tap (5-1) is connected with the first differential pressure transmitter (7-1) by signal wire respectively with the first process gas pressure tap (6-1), the second coal slurry pressure tap (5-2) is connected with the second differential pressure transmitter (7-2) by signal wire respectively with the second process gas pressure tap (6-2), the 3rd coal slurry pressure tap (5-3) is connected with the 3rd differential pressure transmitter (7-3) by signal wire respectively with the 3rd process gas pressure tap (6-3), the first differential pressure transmitter (7-1), the second differential pressure transmitter (7-2) and the 3rd differential pressure transmitter (7-3) are respectively by signal wire and the first pressure reduction decision mechanism (8-1), the second pressure reduction decision mechanism (8-2) is connected with the 3rd pressure reduction decision mechanism (8-3), the first pressure reduction decision mechanism (8-1), parallel with one another and all by signal wire, be connected with Controlling System (9) between the second pressure reduction decision mechanism (8-2) and the 3rd pressure reduction decision mechanism (8-3).
3. the pressure reduction safety interlocking for Coal-water Slurry Pressurized Gasification Unit vapourizing furnace according to claim 2, it is characterized in that in described Controlling System (9), being provided with three selects two voting mechanisms (10) and time delayed mechanism (11), three select and between two voting mechanisms (10) and time delayed mechanism (11), by signal wire, are connected and three select two voting mechanisms (10) to be positioned at time delayed mechanism (11) before.
4. the pressure reduction safety interlocking for Coal-water Slurry Pressurized Gasification Unit vapourizing furnace according to claim 1, is characterized in that described differential pressure transmitter (7) selects diaphragm type transmitter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420044349.0U CN203754659U (en) | 2014-01-24 | 2014-01-24 | Differential pressure safety interlock for coal-water slurry pressurized gasification device gasifier |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420044349.0U CN203754659U (en) | 2014-01-24 | 2014-01-24 | Differential pressure safety interlock for coal-water slurry pressurized gasification device gasifier |
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| Publication Number | Publication Date |
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| CN203754659U true CN203754659U (en) | 2014-08-06 |
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| CN201420044349.0U Expired - Lifetime CN203754659U (en) | 2014-01-24 | 2014-01-24 | Differential pressure safety interlock for coal-water slurry pressurized gasification device gasifier |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104634504A (en) * | 2015-02-27 | 2015-05-20 | 水煤浆气化及煤化工国家工程研究中心 | Device for accurately measuring pressure difference of slag hole of gasification furnace and measurement method thereof |
| CN105505472A (en) * | 2015-12-29 | 2016-04-20 | 中国石油化工股份有限公司 | New gasifier coal slurry flow control method |
| CN105910753A (en) * | 2016-05-09 | 2016-08-31 | 华东理工大学 | Cinder notch differential pressure measurement device and method |
| CN107216919A (en) * | 2016-03-22 | 2017-09-29 | 中国石油化工股份有限公司 | Coal water slurry gasifying device carbon washes the suppressing method of tower peroxide blast |
| CN110408436A (en) * | 2018-04-27 | 2019-11-05 | 中安联合煤化有限责任公司 | A method of shock chamber's state being monitored online using Heisui River pipeline |
| CN111366843A (en) * | 2018-12-26 | 2020-07-03 | 平高集团有限公司 | Circuit breaker device and opening and closing detection method and device |
-
2014
- 2014-01-24 CN CN201420044349.0U patent/CN203754659U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104634504A (en) * | 2015-02-27 | 2015-05-20 | 水煤浆气化及煤化工国家工程研究中心 | Device for accurately measuring pressure difference of slag hole of gasification furnace and measurement method thereof |
| CN105505472A (en) * | 2015-12-29 | 2016-04-20 | 中国石油化工股份有限公司 | New gasifier coal slurry flow control method |
| CN107216919A (en) * | 2016-03-22 | 2017-09-29 | 中国石油化工股份有限公司 | Coal water slurry gasifying device carbon washes the suppressing method of tower peroxide blast |
| CN105910753A (en) * | 2016-05-09 | 2016-08-31 | 华东理工大学 | Cinder notch differential pressure measurement device and method |
| CN105910753B (en) * | 2016-05-09 | 2019-02-22 | 华东理工大学 | A kind of cinder notch pressure difference measuring device and its method |
| CN110408436A (en) * | 2018-04-27 | 2019-11-05 | 中安联合煤化有限责任公司 | A method of shock chamber's state being monitored online using Heisui River pipeline |
| CN111366843A (en) * | 2018-12-26 | 2020-07-03 | 平高集团有限公司 | Circuit breaker device and opening and closing detection method and device |
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