CN210030561U - Pressure guiding device suitable for coke oven crude gas system - Google Patents
Pressure guiding device suitable for coke oven crude gas system Download PDFInfo
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- CN210030561U CN210030561U CN201920958036.9U CN201920958036U CN210030561U CN 210030561 U CN210030561 U CN 210030561U CN 201920958036 U CN201920958036 U CN 201920958036U CN 210030561 U CN210030561 U CN 210030561U
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Abstract
The utility model discloses a pressure-leading device suitable for a coke oven crude gas system, which comprises a pressure-leading pipe and a nitrogen gas rotameter; the pressure leading pipe comprises an atmospheric pipeline, a nitrogen pipeline, a gas pipeline, a three-way valve and a first three-way joint; the upper port and the lower port of the three-way valve are respectively communicated with an atmospheric pipeline and a nitrogen pipeline, and the other port of the three-way valve is connected with a pressure transmitter through a stainless steel connecting hose; the upper port and the lower port of the first three-way joint are respectively communicated with the other end of the nitrogen pipeline and the gas pipeline, and the other port of the first three-way joint is communicated with the outlet end of the nitrogen rotameter through a stainless steel connecting hose; and the inlet end of the nitrogen rotameter is connected into nitrogen equipment through a stainless steel connecting hose. The utility model has the advantages of reasonable design, convenient and practical can effectively solve and get the pressure pipe and easily block up, problem such as pressure transmitter fault rate height, provides accurate data support for the accurate regulation and control of carbomorphism room pressure.
Description
Technical Field
The utility model relates to a coke oven technical field, concretely relates to draw pressure equipment and put suitable for coke oven crude gas system.
Background
The coke oven crude gas is an important chemical product generated by dry distillation of the coking coal in the coking chambers of the coke oven, and the crude gas generated by each coking chamber is conveyed to a gas purification system from a guide-out device such as a rising pipe, a bridge pipe, a gas collecting pipe, a gas suction pipe and the like for further process treatment. Whether the crude gas can be smoothly led out in time and the pressure of the coking chamber is ensured to accord with the principle of a coke oven pressure system, and the accurate measurement and adjustment of the pressure of a bridge pipe and a gas collecting pipe in a crude gas system are key factors. The crude gas is high in temperature and contains components such as water vapor, tar vapor, hydrogen sulfide, hydrogen cyanide and the like, and the traditional crude gas pressure measuring device has the following problems:
(1) the pressure guiding pipe is often blocked by impurities such as tar in the coal gas, the cleaning and dredging frequency is high, and the labor capacity is large;
(2) the pressure transmitter is easily corroded and damaged by crude gas, has more faults and shorter service life.
The problems can cause large fluctuation range of the measured pressure data and distortion of the data, great interference is brought to the normal regulation of the pressure of the coking chamber of the coke oven, the coke oven door, the coal charging hole cover and other positions are easy to cause smoke and fire, even furnace protecting iron pieces are burnt out, and the treatment work of the coke oven of 'unorganized diffusion' is seriously influenced.
SUMMERY OF THE UTILITY MODEL
To there is technical problem in the above-mentioned background art, the utility model provides a can for a long time unblocked, the accuracy is high, clean convenient coke oven crude gas system and draw pressure device to solve and get the problem such as press the pipe easily stifled, pressure transmitter fault rate height, provide accurate data support for the accurate regulation and control of carbomorphism room pressure.
The utility model provides a technical problem's technical scheme as follows:
the utility model relates to a pressure-leading device suitable for a coke oven crude gas system, which comprises a pressure-leading pipe and a nitrogen gas rotameter; the pressure leading pipe comprises an atmospheric pipeline, a nitrogen pipeline, a gas pipeline, a three-way valve and a first three-way joint; the upper port and the lower port of the three-way valve are respectively communicated with an atmospheric pipeline and a nitrogen pipeline, and the other port of the three-way valve is connected with a pressure transmitter through a stainless steel connecting hose; the upper port and the lower port of the first three-way joint are respectively communicated with the other end of the nitrogen pipeline and the gas pipeline, and the other port of the first three-way joint is communicated with the outlet end of the nitrogen rotameter through a stainless steel connecting hose; and the inlet end of the nitrogen rotameter is connected into nitrogen equipment through a stainless steel connecting hose.
As a further improvement of the technical scheme, the upper end of the atmosphere pipeline is a circular arc-shaped bent pipe, and the pipe orifice of the atmosphere pipeline faces downwards.
As a further improvement of the technical scheme, the atmosphere pipeline, the nitrogen pipeline and the gas pipeline are all made of stainless steel.
As a further improvement of the technical scheme, the gas pipeline comprises a bent pipe section, a straight pipe section and a second three-way joint; the upper port of the second three-way joint is set as a cleaning port, a pipe cap is arranged on the cleaning port, the lower port of the cleaning port is communicated with the straight pipe section, the other port of the cleaning port is communicated with the bent pipe section, and the other end of the bent pipe section is communicated with the lower end of the first three-way joint.
As a further improvement of the technical scheme, the bending angle of the bent pipe section is 90 degrees.
As a further improvement of the technical scheme, the straight pipe section comprises an upper straight pipe section and a lower straight pipe section; the upper end of the upper straight pipe section is communicated with the second three-way joint, the lower end of the upper straight pipe section is communicated with the lower straight pipe section through a two-way joint, and external threads are arranged on the outer side of the two-way joint.
When the utility model is used, the pressure-leading device is assembled with the bridge pipe in the coke oven system, a certain amount of nitrogen is sent into the nitrogen pipeline of the pressure-leading pipe by adjusting the size of the nitrogen rotameter, during normal pressure measurement, the nitrogen pipeline and the pressure transmitter are in an access state by rotating the three-way valve, and are in a cut-off state with the atmospheric pipeline, so that the nitrogen directly contacts with the pressure transmitter, nitrogen is separated between the crude gas in the bridge pipe and the pressure transmitter at the moment, the pressure of the crude gas in the bridge pipe is transmitted to the pressure transmitter through the nitrogen for detection, and the nitrogen plays the roles of protecting the pressure transmitter, purging and maintaining the pressure-leading pipe;
when the bridge pipe is communicated with the atmosphere when the ascending pipe cover is opened before coke pushing and the bridge pipe is under negative pressure when the carbonization chamber is charged with coal, nitrogen enters a gas pipeline of the pressure leading pipe to purge and maintain the pipeline;
when the pressure transmitter is corrected, the pressure transmitter is communicated with the atmosphere by rotating the three-way valve, and in this state, the pressure transmitter is isolated from the nitrogen pipeline.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) draw village device unblocked time long, the accuracy is high, clean the convenience, solved coke oven raw gas system and drawn the problem that the pipe easily blocks up, pressure transmitter fault rate is high, can provide accurate data for the accurate regulation and control of carbomorphism room pressure and support, its design scientific and reasonable, simple structure, easy implementation, it is with low costs, simultaneously, can reduce the dismantlement of drawing the pipe after this draws the pressure device to implement, dredge and maintain the frequency, reduced staff's intensity of labour by a wide margin.
(2) Through setting up the atmosphere pipeline, when rectifying pressure transmitter, make pressure transmitter and atmosphere intercommunication through rotatory three-way valve, cut off with the nitrogen gas pipeline, need not dismantle the pressure pipe and stainless steel coupling hose, convenient save time.
(3) The upper segment of atmosphere pipeline set up to mouth of pipe convex return bend down, can prevent debris such as rainwater, dust from getting into and drawing the pressure pipe, and then corrode, block up and draw the pressure pipe.
(4) The cleaning opening and the pipe cap are arranged on the straight pipe section of the pressure guiding pipe, so that the pressure guiding pipe can be conveniently inspected, cleaned and maintained at any time.
(5) The nitrogen pipeline and the nitrogen rotameter are arranged, so that a certain amount of nitrogen is separated between the pressure transmitter and the crude gas in the bridge pipe, and the functions of protecting the pressure transmitter and cleaning the pressure leading pipeline can be achieved.
(6) And the stainless steel connecting hoses are respectively arranged between the pressure guiding pipe and the pressure transmitter, between the pressure guiding pipe and the nitrogen gas rotameter and between the nitrogen gas rotameter and the nitrogen gas branch pipe, so that the device is convenient to connect, detach and clean.
(7) The first three-way joint, the second three-way joint, the two-way joint and the three-way valve are arranged among the pipelines of the pressure leading pipe, so that the pipelines are convenient to disassemble, replace and maintain.
Drawings
The invention will be further explained with reference to the drawings and the detailed description below:
FIG. 1: the structure of the pressure-leading device of the utility model is shown schematically;
FIG. 2: the structure of the pressure leading pipe in the utility model is shown schematically;
FIG. 3: the utility model discloses a pressure-leading device and bridge pipe assembly schematic diagram;
in the figure: 1. the device comprises a pressure guiding pipe, 2, a nitrogen rotor flowmeter, 3, a stainless steel connecting hose, 4, an atmosphere pipeline, 5, a nitrogen pipeline, 6, a gas pipeline, 7, a three-way valve, 8, a first three-way joint, 9, a second three-way joint, 10, a two-way joint, 11, a cleaning opening, 12, a pipe cap, 13, a bridge pipe, 14, a bridge pipe pressure measuring hole, 15, a bent pipe section, 16, an upper straight pipe section, 17, a lower straight pipe section and 18 straight pipe sections.
Detailed Description
As shown in fig. 1 to 3, the pressure guiding device for coke oven crude gas system of the present invention comprises a pressure guiding pipe 1 and a nitrogen gas rotameter 2; the pressure guiding pipe 1 comprises an atmosphere pipeline 4, a nitrogen pipeline 5, a gas pipeline 6, a three-way valve 7 and a first three-way joint 8; the upper and lower ports of the three-way valve 7 are respectively communicated with an atmospheric pipeline 4 and a nitrogen pipeline 5, and the other port of the three-way valve is connected with a pressure transmitter (not shown in the attached drawing) through a stainless steel connecting hose 3; the upper and lower ports of the first three-way joint 8 are respectively communicated with the other end of the nitrogen pipeline 5 and the gas pipeline 6, and the other port of the first three-way joint is communicated with the outlet end of the nitrogen rotameter 2 through a stainless steel connecting hose 3; the inlet end of the nitrogen rotameter 2 is connected with nitrogen equipment through a stainless steel connecting hose 3. In this embodiment, three-way valve 7 is used for controlling the intercommunication of pressure transmitter and atmosphere pipeline 4 or the intercommunication of pressure transmitter and nitrogen gas pipeline 5 to use when pressure transmitter rectifies or is used for detecting coarse coal gas pressure, this setting of atmosphere pipeline 4, when pressure transmitter rectifies, only need rotate three-way valve 7 and make pressure transmitter and atmosphere pipeline 4 communicate with each other, cut off with nitrogen gas pipeline 5, and then need not dismantle draught tube 1 and stainless steel coupling hose 3, convenient save time.
In this embodiment, the upper end of the atmosphere pipeline 4 is a circular arc-shaped elbow, and the opening of the arc-shaped elbow faces downwards and is communicated with the atmosphere, so that the design prevents impurities such as rainwater and dust from entering the pressure pipe 1 and further corroding and blocking the pressure pipe 1.
In this embodiment, the atmosphere pipeline 4, the nitrogen pipeline 5 and the gas pipeline 6 are made of stainless steel, and have high corrosion resistance.
In this embodiment, the gas pipeline 6 includes a bent pipe section 15, a straight pipe section 18 and a second three-way joint 9; the bending angle of the bent pipe section 15 is 90 degrees; the upper port of the second three-way joint 9 is set as a cleaning port 11, the cleaning port 11 is provided with external threads and is connected through a pipe cap 12 provided with matched internal threads, the lower port of the cleaning port is communicated with a straight pipe section 18, the other port of the cleaning port is communicated with a bent pipe section 15, and the other end of the bent pipe section 15 is communicated with the lower end of the first three-way joint 8; the cleaning opening 11 and the pipe cap 12 provided in this embodiment facilitate inspection, cleaning and maintenance of the pressure guiding pipe 1.
In this embodiment, in order to facilitate the connection of the pressure guiding device and the bridge pipe 13, the straight pipe section 18 includes an upper straight pipe section 16 and a lower straight pipe section 17; the upper end of the upper straight pipe section 16 is communicated with the second three-way joint 9, the lower end of the upper straight pipe section is communicated with the lower straight pipe section 17 through a two-way joint 10, the outer side of the two-way joint 10 is provided with external threads, and the external threads are matched with the internal threads of a bridge pipe pressure measuring hole 14 of a bridge pipe 13 and can be tightly fixed on the bridge pipe pressure measuring hole 14.
During the application, will the pressure guiding pipe 1 among the pressure guiding device of the utility model assemble through the bridge pipe pressure measurement hole 14 of the bridge pipe 13 among two way connection 10 and the coke oven system, send a certain amount of nitrogen into the nitrogen gas pipeline 5 of pressure guiding pipe 1 through adjusting the size of nitrogen gas rotameter 2, during normal pressure measurement, rotatory three-way valve 7 makes nitrogen gas pipeline 5 and pressure transmitter be in the access state, and be in the state of cutting off with atmospheric line 4, make nitrogen gas direct and pressure transmitter contact, separate nitrogen gas between the coarse coal gas in the bridge pipe 13 and the pressure transmitter this moment, the size of the coarse coal gas pressure in the bridge pipe 13 transmits the pressure transmitter through nitrogen gas and detects, nitrogen gas plays the effect of protecting pressure transmitter, sweeping, maintaining pressure guiding pipe 1;
when the bridge pipe 13 is communicated with the atmosphere when the ascending pipe cover is opened before coke pushing and the bridge pipe 13 is under negative pressure when the carbonization chamber is charged with coal, nitrogen enters the gas pipeline 6 of the pressure leading pipe 1 to purge and maintain the pipeline;
when the pressure transmitter is corrected, the pressure transmitter is communicated with the atmosphere by rotating the three-way valve 7, and in this state, the pressure transmitter is separated from the nitrogen pipeline 5 without detaching the pressure guiding pipe 1 and the stainless steel connecting hose 3 for connection.
The above is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope defined by the claims.
The parts of the present invention not described in detail are the known techniques of those skilled in the art.
Claims (6)
1. A pressure guiding device suitable for a coke oven crude gas system is characterized by comprising a pressure guiding pipe (1) and a nitrogen gas rotameter (2); the pressure guiding pipe (1) comprises an atmosphere pipeline (4), a nitrogen pipeline (5), a gas pipeline (6), a three-way valve (7) and a first three-way joint (8); the upper port and the lower port of the three-way valve (7) are respectively communicated with an atmospheric pipeline (4) and a nitrogen pipeline (5), and the other port of the three-way valve is connected with a pressure transmitter through a stainless steel connecting hose (3); the upper and lower ports of the first three-way joint (8) are respectively communicated with the other end of the nitrogen pipeline (5) and the gas pipeline (6), and the other port of the first three-way joint is communicated with the outlet end of the nitrogen rotameter (2) through a stainless steel connecting hose (3); the inlet end of the nitrogen rotameter (2) is connected with nitrogen equipment through a stainless steel connecting hose (3).
2. The pressure guiding device suitable for the coke oven crude gas system as claimed in claim 1, wherein the upper end of the atmosphere pipeline (4) is a circular arc elbow with a downward pipe orifice.
3. The pressure guiding device suitable for the coke oven crude gas system as claimed in claim 1, wherein the atmosphere pipeline (4), the nitrogen pipeline (5) and the gas pipeline (6) are all made of stainless steel.
4. The pressure guiding device suitable for the coke oven crude gas system as claimed in claim 1, wherein the gas pipeline (6) comprises a bent pipe section (15), a straight pipe section (18) and a second three-way joint (9); the upper port of the second three-way joint (9) is set as a cleaning port (11), a pipe cap (12) is arranged on the cleaning port (11), the lower port of the pipe cap is communicated with the straight pipe section (18), the other port of the pipe cap is communicated with the bent pipe section (15), and the other end of the bent pipe section (15) is communicated with the lower end of the first three-way joint (8).
5. The pressure guiding device for coke oven crude gas system according to claim 4, wherein the bending angle of the elbow section (15) is 90 °.
6. The pressure guiding device suitable for the coke oven crude gas system as claimed in claim 4, wherein the straight pipe section (18) comprises an upper straight pipe section (16) and a lower straight pipe section (17); the upper end of the upper straight pipe section (16) is communicated with the second three-way joint (9), the lower end of the upper straight pipe section is communicated with the lower straight pipe section (17) through a two-way joint (10), and external threads are arranged on the outer side of the two-way joint (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920958036.9U CN210030561U (en) | 2019-06-21 | 2019-06-21 | Pressure guiding device suitable for coke oven crude gas system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920958036.9U CN210030561U (en) | 2019-06-21 | 2019-06-21 | Pressure guiding device suitable for coke oven crude gas system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210030561U true CN210030561U (en) | 2020-02-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920958036.9U Active CN210030561U (en) | 2019-06-21 | 2019-06-21 | Pressure guiding device suitable for coke oven crude gas system |
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| Country | Link |
|---|---|
| CN (1) | CN210030561U (en) |
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2019
- 2019-06-21 CN CN201920958036.9U patent/CN210030561U/en active Active
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