CN215249578U - Claus sulfur recovery process exhaust gas recovery processing system - Google Patents
Claus sulfur recovery process exhaust gas recovery processing system Download PDFInfo
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- CN215249578U CN215249578U CN202120804709.2U CN202120804709U CN215249578U CN 215249578 U CN215249578 U CN 215249578U CN 202120804709 U CN202120804709 U CN 202120804709U CN 215249578 U CN215249578 U CN 215249578U
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Abstract
The utility model discloses a Claus sulphur recovery technology exhaust gas recovery processing system belongs to Claus sulphur exhaust gas treatment facility, the utility model discloses the technical problem that solves for how ensure under the condition that does not change original boiler equipment, handle Claus sulphur exhaust gas, avoid the pipeline to appear blockking up or even corrode the leakage, the technical scheme of adoption is: the structure of the boiler comprises a Claus reactor, a No. 1 boiler furnace, a No. 2 boiler furnace and an exhaust main pipeline, wherein the inlet ends of the No. 1 boiler furnace and the No. 2 boiler furnace are respectively provided with a No. 1 secondary air main pipe and a No. 2 secondary air main pipe; the Claus reactor is communicated with one end of a main exhaust pipeline, and the other end of the main exhaust pipeline is respectively communicated with a 1# secondary air main pipe and a 2# secondary air main pipe; a first metal expansion joint and a second metal expansion joint are respectively arranged at the joint of the 1# secondary air main pipe and the 1# boiler furnace and the joint of the 2# secondary air main pipe and the 2# boiler furnace; and a gas-liquid separator is arranged on the main exhaust pipeline.
Description
Technical Field
The utility model relates to a Claus sulfur exhaust gas treatment device, in particular to a Claus sulfur recovery process exhaust gas recovery treatment system.
Background
The conventional Claus sulfur recovery process adopts a method of high-temperature thermal reaction and two-stage catalytic reaction, and comprises the following specific steps: the partial combustion method is that all raw material gases are introduced into a sulfur-making combustion furnace, the air distribution ratio is strictly controlled in the furnace according to the quantity of O2 required by sulfur making, SO that the quantity of SO2 generated after H2S is combusted meets the condition that H2S/SO2 is close to 2, and H2S and SO2 react at high temperature in the furnace to generate gaseous sulfur; the incompletely reacted H2S and SO2 pass through the Claus reactor, the sulfur preparation process is further completed under the action of the catalyst, and the gas discharged from the Claus reactor is discharged.
The Claus exhaust gas is burnt at high temperature in the incinerator, H2S is converted into SO2, but a small amount of elemental sulfur is not burnt, after the exhaust gas is cooled by the waste heat boiler, the elemental sulfur and the Claus exhaust gas enter flue gas desulfurization together, the elemental sulfur cannot be absorbed and converted by ammonia water, the elemental sulfur still exists in an ammonia water system in an elemental state, the lower part of an ammonia water circulating tank is blocked after accumulation for a certain time, a circulating pump cannot normally pump liquid, the absorption of SO2 by the ammonia water is influenced, and the stable operation of a flue gas desulfurization device is influenced.
The Claus exhaust gas contains SO2, water vapor, CO2, O2, elemental sulfur and other components, the elemental sulfur can block a pipeline, the water vapor can be changed into liquid water when being cooled, the liquid water and the SO2 in the exhaust gas react to produce sulfurous acid, the sulfurous acid can be converted into dilute sulfuric acid, and the pipeline is corroded to generate leakage.
Therefore, how to ensure that the Claus sulfur exhaust gas is treated under the condition of not changing the original boiler equipment and the pipeline is prevented from being blocked and even corroded and leaked is a technical problem to be solved urgently at present.
Disclosure of Invention
The technical task of the utility model is to provide a Claus sulphur recovery technology exhaust gas recovery processing system, solve how to ensure under the condition that does not change original boiler equipment, handle Claus sulphur exhaust gas, avoid the pipeline to appear blockking up the problem of corroding the leakage even.
The technical task of the utility model is realized according to the following mode, a Claus sulfur recovery process exhaust gas recovery processing system, the system includes Claus reactor, 1# boiler furnace, 2# boiler furnace and main exhaust pipe, the inlet end of 1# boiler furnace and 2# boiler furnace is provided with 1# overgrate air main pipe and 2# overgrate air main pipe respectively; the Claus reactor is communicated with one end of a main exhaust pipeline, and the other end of the main exhaust pipeline is respectively communicated with a 1# secondary air main pipe and a 2# secondary air main pipe;
the outer sides of the main exhaust pipeline, the 1# secondary air main pipe and the 2# secondary air main pipe are wrapped with heat tracing pipes; a first metal expansion joint and a second metal expansion joint are respectively arranged at the joint of the 1# secondary air main pipe and the 1# boiler furnace and the joint of the 2# secondary air main pipe and the 2# boiler furnace;
a gas-liquid separator is arranged on the main exhaust pipeline; two sides of the gas-liquid separator are respectively provided with a first interlocking pneumatic emptying pipeline and a second interlocking pneumatic emptying pipeline, the first interlocking pneumatic emptying pipeline is provided with a pneumatic emptying valve XCV1005, and the second interlocking pneumatic emptying pipeline is provided with a pneumatic emptying valve XCV 1004; and one ends of the 1# secondary air main pipe and the 2# secondary air main pipe, which are close to the exhaust main pipe, are respectively provided with a third interlocking pneumatic emptying pipeline and a fourth interlocking pneumatic emptying pipeline, the third interlocking pneumatic emptying pipeline is provided with a pneumatic emptying valve XCV1003, and the fourth interlocking pneumatic emptying pipeline is provided with a pneumatic emptying valve XCV 1002.
Preferably, the main exhaust pipeline is arranged in a slope direction towards the No. 1 secondary air main pipe and the No. 2 secondary air main pipe, and the slope is 0-3 degrees, preferably 1 degree.
Preferably, an inverted U-shaped pipe is arranged between the gas-liquid separator and the first interlocking pneumatic emptying pipeline, two ends of the inverted U-shaped pipe are respectively communicated with the main exhaust pipeline, a first sampling pipe and a second sampling pipe are respectively arranged at the joint of two ends of the inverted U-shaped pipe and the main exhaust pipeline, a first manual sampling valve and a second manual sampling valve are respectively arranged on the first sampling pipe and the second sampling pipe, a third sampling pipe is arranged at the center of the bottom of the inverted U-shaped pipe, and a third manual sampling valve is arranged on the third sampling pipe.
Preferably, a sampling pipe IV, a pressure transmitter PT1001, a manual emptying valve and a remote transmission thermometer TT1001 are arranged between the gas-liquid separator and the interlocking pneumatic emptying pipeline II, the pressure transmitter PT1001, the manual emptying valve and the remote transmission thermometer TT1001 are sequentially installed on the main exhaust pipeline, and the sampling pipe IV is provided with the manual sampling valve IV.
Preferably, the main exhaust pipe is provided with a front cut-off valve and a pneumatic cut-off valve XCV1001 at one end close to the 1# secondary air main pipe and the 2# secondary air main pipe, and the front cut-off valve and the pneumatic cut-off valve XCV1001 are sequentially mounted on the main exhaust pipe.
Preferably, a first rear cut-off valve is arranged at one end, close to the main exhaust pipeline, of the 1# secondary air main pipe, the first rear cut-off valve is located at one side of the third interlocking pneumatic emptying pipeline, a manual valve DN50 is arranged at the other side of the third interlocking pneumatic emptying pipeline, a first site thermometer and a first site pressure gauge are arranged on one side, far away from the third interlocking pneumatic emptying pipeline, of the manual valve DN50, and the manual valve DN50, the first site thermometer and the first site pressure gauge are sequentially arranged on the 1# secondary air main pipe;
and a valve I is arranged on the interlocking pneumatic emptying pipeline III.
Preferably, a first manual cut-off valve is arranged at one end, close to a furnace hearth of the 1# boiler, of the 1# secondary air main pipe, a first nitrogen purging pipe is arranged between the first manual cut-off valve and the first metal expansion joint, the first nitrogen purging pipe is located on the 1# secondary air main pipe, and the first nitrogen purging pipe is provided with a first nitrogen purging valve.
Preferably, a second rear cut-off valve is arranged at one end, close to the main exhaust pipeline, of the 2# secondary air main pipe, the second rear cut-off valve is located at one side of the fourth interlocking pneumatic emptying pipeline, a second site thermometer and a second site pressure gauge are arranged at the other side of the fourth interlocking pneumatic emptying pipeline, and the second site thermometer and the second site pressure gauge are sequentially installed on the 2# secondary air main pipe;
and a valve II is arranged on the interlocked pneumatic emptying pipeline IV.
Preferably, one end of the No. 2 secondary air main pipe, which is close to the No. 2 boiler furnace, is provided with a second manual cut-off valve, a second nitrogen purging pipe is arranged between the second manual cut-off valve and the second metal expansion joint, the second nitrogen purging pipe is positioned on the No. 2 secondary air main pipe, and the second nitrogen purging pipe is provided with a second nitrogen purging valve;
one side of the nitrogen purging pipe II, which is far away from the manual cut-off valve II, is provided with a sampling pipe V, and the sampling pipe V is positioned on the 2# secondary air main pipe and is provided with a manual sampling valve V.
Preferably, the main exhaust pipeline, the 1# secondary air main pipe, the 2# secondary air main pipe, the first interlocking pneumatic emptying pipeline, the second interlocking pneumatic emptying pipeline, the third interlocking pneumatic emptying pipeline, the fourth interlocking pneumatic emptying pipeline, the first sampling pipe, the second sampling pipe, the third sampling pipe, the fourth sampling pipe, the fifth sampling pipe, the first nitrogen purging pipe and the second nitrogen purging pipe all adopt carbon steel pipes.
The utility model discloses a Claus sulphur recovery technology exhaust gas recovery processing system has following advantage:
the utility model solves the defects of the traditional recovery process, ensures that the Claus exhaust gas is further combusted by the boiler without changing the original boiler equipment, and the gas is completely purified and discharged after being desulfurized, thereby having great environmental protection benefit and avoiding the blockage and even corrosion leakage of the pipeline;
secondly, the gas-liquid separator is arranged on the main exhaust pipeline of the utility model, and the separated condensed water is recovered in time and sent to a sewage treatment system, thus eliminating the problem of acid substances;
thirdly, the outside of the main exhaust pipeline, the 1# secondary air main pipe and the 2# secondary air main pipe of the utility model is wrapped with heat tracing pipes, the temperature is traced by 0.5MPa saturated steam, the temperature in the pipeline is kept to be higher than 120 ℃, the temperature is higher than the solidifying point of elemental sulfur, the elemental sulfur enters a boiler furnace chamber along with gas, and the elemental sulfur can not be attached to the inner wall of the pipeline, so that the problem that the elemental sulfur blocks the pipeline is solved;
(IV) the main exhaust pipeline and the 1# secondary air main pipe of the utility model are both arranged in the slope direction of the 1# secondary air main pipe, and the slope is 1 degree; the No. 2 secondary air main pipe is arranged in a slope direction to the No. 2 secondary air main pipe, the slope is 1 degree, and elemental sulfur can enter a hearth of the boiler to be combusted conveniently;
(V) the tail gas pneumatic valve is closed in the boiler parking interlocking design of the embodiment, so that when the boiler is suddenly parked, Claus exhaust gas continuously enters the boiler, timely gas cutting is ensured, and the safety is improved; the method specifically comprises the following steps: when the secondary fan of the No. 1 boiler furnace or the No. 2 boiler furnace is stopped, the stop signal interlocking pneumatic valve is closed; a pneumatic air release valve XCV1004 is designed, when the pneumatic valve XCV1001 is closed to cause the pressure of the sulfur recovery device to be suppressed, the pneumatic air release valve XCV1004 is opened to avoid the pressure of the sulfur recovery device to be suppressed; a pneumatic emptying valve XCV1005 is also designed, the pressure of the sulfur recovery system is interlocked, and when the pressure is high, the pneumatic emptying valve XCV1005 is interlocked and opened, so that the pressure of the sulfur recovery device is prevented from being held; meanwhile, after the pneumatic emptying valve XCV1001, a pneumatic emptying valve XCV1003 and a pneumatic emptying valve XCV1002 are respectively designed on a 1# secondary air main pipe and a 2# secondary air main pipe, the pneumatic emptying valve is manually opened and closed by a control chamber DCS and is used for replacement emptying, and a nitrogen adding purging pipeline and a nitrogen purging valve are designed.
Sixthly, the joint of the 1# secondary air main pipe and the joint of the 2# secondary air main pipe and the 2# secondary air main pipe of the utility model are respectively provided with a metal expansion joint I and a metal expansion joint II, thereby avoiding the influence of pipeline stress on a secondary air pipe and eliminating the problems of axial displacement and radial displacement of the pipeline caused by thermal stress;
(seventh) the utility model discloses install 1 platform of pressure transmitter and 1 platform of teletransmission thermometer on the exhaust trunk line, install on 1# overgrate air female pipe and the 2# overgrate air female pipe respectively on site thermometer one, manometer one and site thermometer two, manometer two, be convenient for monitor whether the pipeline blocks up and the condition whether appear leaking.
The utility model has the characteristics of reasonable in design, simple structure, easily processing, small, convenient to use, a thing is multi-purpose etc, therefore, has fine popularization and use value.
Drawings
The present invention will be further explained with reference to the accompanying drawings.
FIG. 1 is a schematic diagram of the structure of a Claus sulfur recovery process vent gas recovery treatment system.
In the figure: 1. a Claus reactor, 2, 1# boiler furnace, 3, 2# boiler furnace, 4, a main exhaust pipeline, 5, 1# secondary air main pipe, 6, 2# secondary air main pipe, 7, a heat tracing pipe, 8, a first metal expansion joint, 9, a second metal expansion joint, 10, a gas-liquid separator, 11, a first interlocking pneumatic emptying pipeline, 12, a second interlocking pneumatic emptying pipeline, 13, pneumatic emptying valves XCV1005, 14, pneumatic emptying valves XCV1004, 15, a third interlocking pneumatic emptying pipeline, 16, a fourth interlocking pneumatic emptying pipeline, 17, a pneumatic emptying valve XCV1003, 18, a pneumatic emptying valve XCV1002, 19, a U-shaped pipe, 20, a first sampling pipe, 21, a second sampling pipe, 22, a first manual sampling valve, 23, a second manual sampling valve, 24, a third sampling pipe, 25, a third manual sampling valve, 26, a fourth sampling pipe, 27, a pressure PT1001, 28, a manual emptying valve, 29, a remote thermometer, 30. the system comprises four manual sampling valves 31, four front cut-off valves 32, four pneumatic cut-off valves XCV1001, 33, four rear cut-off valves 34, four manual valves DN50, 35, a first site thermometer 36, a first site pressure gauge 37, a first valve 38, a first manual cut-off valve 39, a first nitrogen purging pipe 40, a first nitrogen purging valve 41, a second rear cut-off valve 42, a second site thermometer 43, a second site pressure gauge 44, a second valve 45, a second manual cut-off valve 46, a second nitrogen purging pipe 47, a second nitrogen purging valve 48, a fifth sampling pipe 49 and a fifth manual sampling valve.
Detailed Description
The present invention relates to a Claus sulfur recovery process effluent gas recovery processing system, which is described in detail below with reference to the accompanying drawings and specific examples.
In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and for simplification of description. And are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example (b):
as shown in the attached drawing 1, the exhaust gas recovery processing system of the claus sulfur recovery process of the present invention comprises a claus reactor 1, a 1# boiler furnace 2, a 2# boiler furnace 3 and an exhaust main pipe 4, wherein the inlet ends of the 1# boiler furnace 2 and the 2# boiler furnace 3 are respectively provided with a 1# secondary air main pipe 5 and a 2# secondary air main pipe 6; the Claus reactor 1 is communicated with one end of a main exhaust pipeline 4, and the other end of the main exhaust pipeline 4 is respectively communicated with a 1# secondary air main pipe 5 and a 2# secondary air main pipe 6.
The outer sides of a main exhaust pipeline 4, a main secondary air pipe 5 and a main secondary air pipe 6 in the embodiment are wrapped with heat tracing pipes 7, the temperature is traced by 0.5MPa saturated steam, the temperature in the pipeline is kept to be higher than 120 ℃, the temperature is higher than the solidifying point of elemental sulfur, the elemental sulfur enters a boiler hearth along with gas and cannot be attached to the inner wall of the pipeline, and the problem that the elemental sulfur blocks the pipeline is solved.
In this embodiment, in order to avoid the influence of pipeline stress to the secondary air pipe, eliminate that thermal stress causes pipeline axial displacement, radial displacement problem, metal expansion joint one 8 and metal expansion joint two 9 are installed respectively to the female pipe of 1# overgrate air 5 and the 2 junction of 1# boiler furnace 2 and the female pipe of 2# overgrate air 6 and the 3 junction of 2# boiler furnace.
The main exhaust pipe 4 in this embodiment is provided with a gas-liquid separator 10 for gas-liquid separation, and the separated condensed water is recovered in time and sent to a sewage treatment system, thereby eliminating the problem of acid substances.
In the embodiment, a first interlocking pneumatic emptying pipeline 11 and a second interlocking pneumatic emptying pipeline 12 are respectively installed on two sides of the gas-liquid separator 10, a pneumatic emptying valve XCV 100513 is installed on the first interlocking pneumatic emptying pipeline 11, and a pneumatic emptying valve XCV 100414 is installed on the second interlocking pneumatic emptying pipeline 12; and one ends of the 1# secondary air main pipe 5 and the 2# secondary air main pipe 6, which are close to the main exhaust pipeline 4, are respectively provided with an interlocking pneumatic emptying pipeline three 15 and an interlocking pneumatic emptying pipeline four 16, the interlocking pneumatic emptying pipeline three 15 is provided with a pneumatic emptying valve XCV 100317, and the interlocking pneumatic emptying pipeline four 16 is provided with a pneumatic emptying valve XCV 100218. Wherein, the interlock pneumatic blow-down pipeline III 15 is provided with a valve I37. And a second valve 44 is arranged on the fourth interlocking pneumatic emptying pipeline 16.
4 slopes of main exhaust duct in this embodiment are 1# overgrate air main pipe 5 and 2# overgrate air main pipe 6 sets up, and the slope is 1, is favorable to the elemental sulfur to get into the burning in the boiler furnace.
Install between the pneumatic blow-down pipeline of vapour and liquid separator 10 and interlocking 11 in this embodiment and fall U type pipe 19, fall U type pipe 19 both ends and be linked together with main exhaust line 4 respectively and fall U type pipe 19 both ends and main exhaust line 4 junction and install sampling tube one 20 and sampling tube two 21 respectively, install manual sampling valve one 22 and manual sampling valve two 23 on sampling tube one 20 and the sampling tube two 21 respectively, 19 socle department in the bottom of falling U type installs sampling tube three 24, install manual sampling valve three 25 on the sampling tube three 24, the convenience is taken a sample on main exhaust line 4.
A sampling pipe IV 26, a pressure transmitter PT 100127, a manual emptying valve 28 and a remote transmission thermometer TT 100129 are arranged between the gas-liquid separator 10 and the interlocking pneumatic emptying pipeline II 12 in the embodiment, the pressure transmitter PT 100127, the manual emptying valve 28 and the remote transmission thermometer TT 100129 are sequentially arranged on the main exhaust pipeline 4, and a manual sampling valve IV 30 is arranged on the sampling pipe IV 26, so that whether the pipeline is blocked or not and whether leakage occurs or not can be conveniently monitored.
The main exhaust pipe 4 in this embodiment is provided with a front cut-off valve 31 and a pneumatic cut-off valve XCV 100132 at one end close to the 1# secondary air main pipe 5 and the 2# secondary air main pipe 6, and the front cut-off valve 31 and the pneumatic cut-off valve XCV 100132 are sequentially arranged on the main exhaust pipe 4.
In the embodiment, a first rear cut-off valve 33 is installed at one end, close to the main exhaust pipeline 4, of the main 1# secondary air pipe 5, the first rear cut-off valve 33 is located at one side of the third interlocking pneumatic emptying pipeline 15, a manual valve DN 5034 is installed at the other side of the third interlocking pneumatic emptying pipeline 15, a first site thermometer 35 and a first site pressure gauge 36 are installed at one side, far away from the third interlocking pneumatic emptying pipeline 15, of the manual valve DN 5034, and the manual valve DN 5034, the first site thermometer 35 and the first site pressure gauge 36 are sequentially installed on the main 1# secondary air pipe 5.
In the embodiment, a first manual cut-off valve 38 is installed at one end, close to the 1# boiler furnace 2, of the 1# secondary air main pipe 5, a first nitrogen purging pipe 39 is installed between the first manual cut-off valve 38 and the first metal expansion joint 8, the first nitrogen purging pipe 39 is located on the 1# secondary air main pipe 5, and a first nitrogen purging valve 40 is installed on the first nitrogen purging pipe 39.
In the embodiment, a second rear cut-off valve 41 is installed at one end, close to the main exhaust pipeline 4, of the 2# secondary air main pipe 6, the second rear cut-off valve 41 is located at one side of the fourth interlocking pneumatic emptying pipeline 16, a second site temperature gauge 42 and a second site pressure gauge 43 are installed at the other side of the fourth interlocking pneumatic emptying pipeline 16, and the second site temperature gauge 42 and the second site pressure gauge 43 are sequentially installed on the 2# secondary air main pipe 6.
In the embodiment, a second manual cut-off valve 45 is installed at one end, close to the 2# boiler hearth 3, of the 2# secondary air main 6 pipe, a second nitrogen purging pipe 46 is installed between the second manual cut-off valve 45 and the second metal expansion joint 9, the second nitrogen purging pipe 46 is located on the 2# secondary air main 6, and a second nitrogen purging valve 47 is installed on the second nitrogen purging pipe 46; and a fifth sampling pipe 48 is arranged on one side, away from the second manual cut-off valve 45, of the second nitrogen purging pipe 46, the fifth sampling pipe 48 is positioned on the 2# secondary air main pipe 6, and a fifth manual sampling valve 49 is arranged on the fifth sampling pipe 48.
In the embodiment, the main exhaust pipeline 4, the # 1 secondary air main pipe 5, the # 2 secondary air main pipe 6, the first interlocking pneumatic vent pipeline 11, the second interlocking pneumatic vent pipeline 12, the third interlocking pneumatic vent pipeline 15, the fourth interlocking pneumatic vent pipeline 16, the first sampling pipe 20, the second sampling pipe 21, the third sampling pipe 24, the fourth sampling pipe 26, the fifth sampling pipe 48, the first nitrogen purging pipe 39 and the second nitrogen purging pipe 46 all adopt carbon steel pipes.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (10)
1. A Claus sulfur recovery process exhaust gas recovery processing system is characterized by comprising a Claus reactor, a No. 1 boiler furnace, a No. 2 boiler furnace and an exhaust main pipeline, wherein the inlet ends of the No. 1 boiler furnace and the No. 2 boiler furnace are respectively provided with a No. 1 secondary air main pipe and a No. 2 secondary air main pipe; the Claus reactor is communicated with one end of a main exhaust pipeline, and the other end of the main exhaust pipeline is respectively communicated with a 1# secondary air main pipe and a 2# secondary air main pipe;
the outer sides of the main exhaust pipeline, the 1# secondary air main pipe and the 2# secondary air main pipe are wrapped with heat tracing pipes; a first metal expansion joint and a second metal expansion joint are respectively arranged at the joint of the 1# secondary air main pipe and the 1# boiler furnace and the joint of the 2# secondary air main pipe and the 2# boiler furnace;
a gas-liquid separator is arranged on the main exhaust pipeline; two sides of the gas-liquid separator are respectively provided with a first interlocking pneumatic emptying pipeline and a second interlocking pneumatic emptying pipeline, the first interlocking pneumatic emptying pipeline is provided with a pneumatic emptying valve XCV1005, and the second interlocking pneumatic emptying pipeline is provided with a pneumatic emptying valve XCV 1004; and one ends of the 1# secondary air main pipe and the 2# secondary air main pipe, which are close to the exhaust main pipe, are respectively provided with a third interlocking pneumatic emptying pipeline and a fourth interlocking pneumatic emptying pipeline, the third interlocking pneumatic emptying pipeline is provided with a pneumatic emptying valve XCV1003, and the fourth interlocking pneumatic emptying pipeline is provided with a pneumatic emptying valve XCV 1002.
2. The Claus sulfur recovery process vent gas recovery processing system of claim 1, wherein the main vent line slopes towards the No. 1 secondary air main pipe and the No. 2 secondary air main pipe, and the slope is 0-3 °.
3. The Claus sulfur recovery process vent gas recovery processing system of claim 1, characterized in that an inverted U-shaped pipe is arranged between the gas-liquid separator and the first interlocked pneumatic blow-down pipe, two ends of the inverted U-shaped pipe are respectively communicated with the main vent pipe, a first sampling pipe and a second sampling pipe are respectively arranged at the joints of the two ends of the inverted U-shaped pipe and the main vent pipe, a first manual sampling valve and a second manual sampling valve are respectively arranged on the first sampling pipe and the second sampling pipe, a third sampling pipe is arranged at the center of the bottom of the inverted U-shaped pipe, and a third manual sampling valve is arranged on the third sampling pipe.
4. The Claus sulfur recovery process vent gas recovery processing system of claim 1, wherein a fourth sampling pipe, a pressure transmitter PT1001, a manual emptying valve and a telemetering thermometer are arranged between the gas-liquid separator and the second interlocked pneumatic emptying pipeline, the pressure transmitter PT1001, the manual emptying valve and the telemetering thermometer are sequentially arranged on the main vent pipeline, and the fourth sampling pipe is provided with a fourth manual sampling valve.
5. The Claus sulfur recovery process vent gas recovery processing system of claim 1, wherein one end of the main vent line near the No. 1 secondary air main pipe and the No. 2 secondary air main pipe is provided with a front cut-off valve and a pneumatic cut-off valve XCV1001, and the front cut-off valve and the pneumatic cut-off valve XCV1001 are sequentially installed on the main vent line.
6. The system for recovering and treating the exhaust gas of the Claus sulfur recovery process according to claim 1, wherein a first rear cut-off valve is arranged at one end of the 1# secondary air main pipe close to the main exhaust pipeline, the first rear cut-off valve is arranged at one side of a third interlocking pneumatic emptying pipeline, a manual valve DN50 is arranged at the other side of the third interlocking pneumatic emptying pipeline, a first site thermometer and a first site pressure gauge are arranged at one side of the manual valve DN50 far away from the third interlocking pneumatic emptying pipeline, and the manual valve DN50, the first site thermometer and the first site pressure gauge are sequentially arranged on the 1# secondary air main pipe;
and a valve I is arranged on the interlocking pneumatic emptying pipeline III.
7. The system for recovering and treating the Claus sulfur recovery process exhaust gas according to claim 1, wherein a first manual cut-off valve is arranged at one end of the 1# secondary air main pipe close to the 1# boiler furnace, a first nitrogen purging pipe is arranged between the first manual cut-off valve and the first metal expansion joint, the first nitrogen purging pipe is positioned on the 1# secondary air main pipe, and the first nitrogen purging pipe is provided with a first nitrogen purging valve.
8. The Claus sulfur recovery process vent gas recovery processing system of claim 1, wherein one end of the 2# secondary air main pipe close to the main vent pipe is provided with a second rear cut-off valve, the second rear cut-off valve is positioned at one side of the fourth interlocked pneumatic vent pipe, the other side of the fourth interlocked pneumatic vent pipe is provided with a second site temperature gauge and a second site pressure gauge, and the second site temperature gauge and the second site pressure gauge are sequentially arranged on the 2# secondary air main pipe;
and a valve II is arranged on the interlocked pneumatic emptying pipeline IV.
9. The Claus sulfur recovery process vent gas recovery processing system of claim 1, wherein one end of the 2# secondary air main pipe close to the 2# boiler furnace is provided with a second manual cut-off valve, a second nitrogen purging pipe is arranged between the second manual cut-off valve and the second metal expansion joint, the second nitrogen purging pipe is positioned on the 2# secondary air main pipe, and the second nitrogen purging pipe is provided with a second nitrogen purging valve;
one side of the nitrogen purging pipe II, which is far away from the manual cut-off valve II, is provided with a sampling pipe V, and the sampling pipe V is positioned on the 2# secondary air main pipe and is provided with a manual sampling valve V.
10. The system for recovering and treating the exhaust gas of the Claus sulfur recovery process according to any one of claims 1 to 9, wherein the main exhaust gas pipeline, the 1# secondary air main pipe, the 2# secondary air main pipe, the first interlocking pneumatic vent pipeline, the second interlocking pneumatic vent pipeline, the third interlocking pneumatic vent pipeline, the fourth interlocking pneumatic vent pipeline, the first sampling pipe, the second sampling pipe, the third sampling pipe, the fourth sampling pipe, the fifth sampling pipe, the first nitrogen purge pipe and the second nitrogen purge pipe are all carbon steel pipes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120804709.2U CN215249578U (en) | 2021-04-20 | 2021-04-20 | Claus sulfur recovery process exhaust gas recovery processing system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120804709.2U CN215249578U (en) | 2021-04-20 | 2021-04-20 | Claus sulfur recovery process exhaust gas recovery processing system |
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| CN215249578U true CN215249578U (en) | 2021-12-21 |
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| CN202120804709.2U Active CN215249578U (en) | 2021-04-20 | 2021-04-20 | Claus sulfur recovery process exhaust gas recovery processing system |
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2021
- 2021-04-20 CN CN202120804709.2U patent/CN215249578U/en active Active
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