CN204535915U - Dry distillation gas pressure survey reverse-blowing block-resistant device - Google Patents
Dry distillation gas pressure survey reverse-blowing block-resistant device Download PDFInfo
- Publication number
- CN204535915U CN204535915U CN201520185960.XU CN201520185960U CN204535915U CN 204535915 U CN204535915 U CN 204535915U CN 201520185960 U CN201520185960 U CN 201520185960U CN 204535915 U CN204535915 U CN 204535915U
- Authority
- CN
- China
- Prior art keywords
- pressure survey
- sampling pipe
- pipeline
- dry distillation
- reverse
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model discloses a kind of dry distillation gas pressure survey reverse-blowing block-resistant device, comprise the sampling pipe be connected with process pipe, and the pressure survey pipeline to be connected with pressure measuring element, wherein sampling pipe is connected by three-way connection with pressure survey pipeline, three-way connection is also connected with hot-gas channel by the blowback solenoid valve being connected to control system, hot-gas channel and sampling pipe are generally within straight line, and described pressure survey pipeline becomes obtuse angle to tilt relative to sampling pipe.The utility model discloses a kind of dry distillation gas pressure survey reverse-blowing block-resistant device, its structure is simple, with low cost, can improve tonometric accuracy simultaneously.
Description
Technical field
The utility model relates to a kind of pressure survey reverse-blowing block-resistant device, particularly suitable but be not limited only to the tonometric reverse-blowing block-resistant device of dry distillation gas.
Background technology
In existing pressure survey reverse-blowing block-resistant device, sampling pipe is provided with tee ball valve, the high-pressure gas pipelines that three interfaces of tee ball valve connect the sampling pipe be connected with process pipe, the pressure measuring element be connected with sampling pipe respectively and are connected with operation valve.Gases at high pressure carry out blowback cleaning by tee ball valve to sampling pipe and pressure survey pipeline again by after the operation valve that is connected with control system, thus realize anti-blocking object.The cost of the tee ball valve wherein used is higher relative to cost common three-way connection.The more important thing is, because the gases at high pressure adopted in existing pressure survey reverse-blowing block-resistant device are pressurized air, the pressure survey for the high-temperature gas containing dust in commercial production but can not play good reverse-blowing block-resistant effect.The dry distillation gas of such as, in commercial production widespread use, can be divided into the high temperature carbonization of 900 ~ 1100 DEG C, the medium temperature carbonization of 700 ~ 900 DEG C, the low-temperature pyrolysis three kinds of 500 ~ 600 DEG C.The temperature of these three kinds of dry distillation gases is all relatively high, and have containing dust, coal tar wet goods feature, the pressure survey reverse-blowing block-resistant device of prior art is poor for dry distillation gas tonometric sampling pipe reverse-blowing block-resistant effect, after long-time use, dust and coal tar wet goods material are easy to cause sampling pipe to block, and this can have a strong impact on tonometric accuracy.
Utility model content
Problem to be solved in the utility model is, provides the dry distillation gas pressure survey reverse-blowing block-resistant device that a kind of structure is simple, with low cost, can improve tonometric accuracy.
Dry distillation gas pressure survey reverse-blowing block-resistant device of the present utility model, comprise the sampling pipe be connected with process pipe, and the pressure survey pipeline to be connected with pressure measuring element, wherein sampling pipe is connected by three-way connection with pressure survey pipeline, three-way connection is also connected with gas pipeline by the blowback solenoid valve being connected to control system, gas pipeline and sampling pipe are generally within straight line, and described pressure survey pipeline becomes obtuse angle to tilt relative to sampling pipe.Process pipe is provided with sampling pipe, and the other end of sampling pipe is connected with three-way connection, and two other joint Bonding pressure measuring channel and gas pipeline respectively of three-way connection, pressure survey pipeline leads to pressure measuring element.Gas pipeline can adopt Applicable temperature at the high-temperature resistant pipeline material of 500 ~ 700 DEG C, and gas pipeline is provided with blowback solenoid valve, after purge gas enters gas pipeline, then carries out blowback cleaning to sampling pipe after blowback solenoid valve.In the utility model, gas pipeline and sampling pipe, generally within straight line, can ensure that purge gas can carry out good blowback cleaning to sampling pipe like this, make reverse-blowing block-resistant better effects if.In addition, owing to adopting three-way connection to connect, in blowback process, part purge gas may enter into pressure survey pipeline, produces certain impact to the pressure measuring element on pressure survey pipeline, causes pressure measurements inaccurate.In order to avoid nitrogen produces the impacts such as impact to pressure measuring element, the structure adopting pressure survey pipeline to become obtuse angle to tilt relative to sampling pipe, can well offset the impact of purge gas to pressure measuring element like this.
Furthermore, pressure survey pipeline is 1:10 relative to the gradient of sampling pipe vertical direction.Find through repetition test, when pressure survey pipeline is 1:10 relative to the gradient of sampling pipe vertical direction time, best to the neutralization effect of purge gas, therefore adopt this structure better can ensure the accuracy of pressure survey structure.
Further improvement of the utility model is provided with heat-insulation system on sampling pipe and pressure survey pipeline.Because the dry distillation gas temperature in process pipe is higher, and sampling pipe and pressure survey pipe temperature relatively low, when dry distillation gas enters sampling pipe and pressure survey pipeline, dry distillation gas can be produced heat interchange with extraneous thus cause thermal loss by tube wall.Dust in high temperature carbonization coal gas, coal tar part can cool and be attached on sampling pipe and pressure survey pipeline because of the cause of thermal loss, easily cause line clogging, are unfavorable for pressure survey.Therefore on sampling pipe and pressure survey pipeline, be provided with heat-insulation system in addition, after fundamentally avoiding the dust of dry distillation gas or coal tar wet goods to enter sampling pipe and pressure survey pipeline, Yin Wendu reduces and the blocking that causes.
Except the heat-insulation system of conventional structure, preferably structure is heat-insulation system to one is steam tracing utilidor.In utilidor, pass into steam, the temperature of the sampling pipe adjacent with utilidor and pressure survey pipeline improved, thus the dust avoided in dry distillation gas or coal tar wet goods enter sampling pipe and pressure survey pipeline after temperature reduce and block.Due in commercial production, dry distillation gas is that coal produces after gas retort decomposition combustion, therefore utilizes this hot environment to be easy to obtain steam.Fully in conjunction with existing resource, utilize gained steam to carry out tracing thermal-insulating, the cost of whole device is reduced.And steam environmentally safe, be conducive to environmental protection.Certainly, heat-insulation system is not limited in this structure of steam tracing utilidor, can also adopt the structure such as insulation can or heat-insulation layer.In addition, hotwater tracing's pipeline or electric tracing etc. is adopted also can to reach same effect.
In addition, consider that this device is mainly used in inflammable and explosive Coal Chemical Industry working condition, therefore in gas pipeline, logical purge gas is nitrogen.The chemical property of nitrogen is more stable, industrially applies very extensive.Because dry distillation gas has the higher feature of temperature, block because sampling pipe temperature reduces to fundamentally reduce dry distillation gas further, this device the nitrogen that leads to be high temperature nitrogen, its temperature, close to the temperature of dry distillation gas, is approximately 500 ~ 700 DEG C.
While realizing reverse-blowing block-resistant, in order to make the use of this device more convenient, realize on-line automatic blowback, good structure is that control system is provided with the man-auto blowback switching push button that is connected with relay and timing blowback button, and connection and the corresponding peripheral circuit of described blowback button and relay can realize according to the conventional design of this area.When control system installation is arranged, in man-auto blowback and timing blowback, optional one is defined as priority, and corresponding relay of connecting in control loop, the closed and disconnected of pilot relay is carried out by button commands, controlled the opening and closing of blowback solenoid valve by the closed and disconnected of relay, thus realize the object of automatic block-resistant blowback or timing reverse-blowing block-resistant.
Of the present utility model further improvement is that pressure measuring element is provided with protective device.Existing pressure measuring element is of a great variety, and comprise tensimeter, pressure unit, pressure transducer etc., in the pressure survey of dry distillation gas, wirking pressure table or pressure unit carry out pressure survey.Conventional tensimeter should environment be use between-25 DEG C ~ 55 DEG C around, and the serviceability temperature of pressure unit is also unsuitable too high, but the temperature of dry distillation gas is relatively high, and so easy build-up of pressure table or pressure unit damage.In addition, dry distillation gas also can cause certain impact to tensimeter or pressure unit after entering pressure survey pipeline.In order to cushion by the temporary impact of dry distillation gas to tensimeter or pressure unit, the temperature of tested dry distillation gas can be reduced simultaneously, pressure measuring element is provided with protective device.In the utility model, a kind of better structure of protective device used is the ringwise separator tube that can be connected with pressure survey pipeline, pressure measuring element respectively, and its structure and effect are similar to condensation coil common on market.In addition, the protective device of pressure measuring element can also adopt the structures such as insulation box for instrument.While pressure measuring element obtains protection, tonometric accuracy is also made to be improved.
Dry distillation gas pressure survey reverse-blowing block-resistant device of the present utility model, its structure is simple, with low cost, can improve tonometric accuracy simultaneously.
Below in conjunction with the embodiment of embodiment, foregoing of the present utility model is described in further detail again.But this should be interpreted as that the scope of the above-mentioned theme of the utility model is only limitted to following example.Do not departing from the above-mentioned technological thought situation of the utility model, the various replacement made according to ordinary skill knowledge and customary means or change, all should be included in scope of the present utility model.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model dry distillation gas pressure survey reverse-blowing block-resistant device.
Embodiment
Dry distillation gas pressure survey reverse-blowing block-resistant device as shown in Figure 1, comprise the sampling pipe 2 be connected with process pipe 1, and the pressure survey pipeline 3 to be connected with pressure measuring element 5, wherein sampling pipe 2 is connected by three-way connection 4 with pressure survey pipeline 3, three-way connection 4 is also connected with gas pipeline 7 by the blowback solenoid valve 8 being connected to control system, gas pipeline 7 and sampling pipe 2 are generally within straight line, and described pressure survey pipeline 3 tilts relative to sampling pipe 2 one-tenth obtuse angle.Valve 10 on sampling pipe 2 is often opened, and sampling pipe 2 is communicated with process pipe 1.The first interface 41 of three-way connection 4 is connected with sampling pipe 2 toward process pipe 1.Second interface 42 is connected with pressure survey pipeline 3, and towards pressure measuring element 5, pressure measuring element 5 is provided with protected location 9, and protected location 9 can make tonometric accuracy improve to a certain extent.3rd interface 43 is connected with the gas pipeline 7 being connected to blowback solenoid valve 8.Gas pipeline 7 and sampling pipe 2 are generally within straight line, pressure survey pipeline 3 is 1:10 relative to the gradient of the vertical direction of sampling pipe 2, pass into high temperature nitrogen in gas pipeline 7 after, the pressure survey pipeline 3 tilted can offset the impact of high temperature nitrogen to pressure measuring element 5, improves tonometric accuracy.Sampling pipe 2 and pressure survey pipeline 3 are also provided with steam tracing utilidor 6, and the mode be incubated by steam tracing fundamentally reduces dust in dry distillation gas, the blocking that causes because sampling pipe 2 temperature reduces of coal tar wet goods.In the control system of blowback solenoid valve 8, be provided with the man-auto be connected with relay freely switch blowback button or timing blowback button, in use, can be carried out the closed and disconnected of pilot relay by select button instruction, connection and the corresponding peripheral circuit of blowback button and relay can realize according to the conventional design of this area.Controlled the opening and closing of blowback solenoid valve 8 by the closed and disconnected of pilot relay, under the effect of blowback solenoid valve 8, after high temperature nitrogen enters gas pipeline 7, realize man-auto reverse-blowing block-resistant or timing reverse-blowing block-resistant.
Claims (6)
1. dry distillation gas pressure survey reverse-blowing block-resistant device, it is characterized in that comprising the sampling pipe (2) be connected with process pipe (1), and the pressure survey pipeline (3) to be connected with pressure measuring element (5), wherein sampling pipe (2) is connected by three-way connection (4) with pressure survey pipeline (3), three-way connection (4) is also connected with gas pipeline (7) by the blowback solenoid valve (8) being connected to control system, gas pipeline (7) and sampling pipe (2) are generally within straight line, described pressure survey pipeline (5) becomes obtuse angle to tilt relative to sampling pipe (2).
2. dry distillation gas pressure survey reverse-blowing block-resistant device as claimed in claim 1, is characterized in that: described pressure survey pipeline (3) is 1:10 relative to the gradient of sampling pipe (2) vertical direction.
3. dry distillation gas pressure survey reverse-blowing block-resistant device as claimed in claim 1, is characterized in that: described sampling pipe (2) and pressure survey pipeline (3) are provided with heat-insulation system.
4. dry distillation gas pressure survey reverse-blowing block-resistant device as claimed in claim 3, is characterized in that: described heat-insulation system is steam tracing utilidor (6).
5. dry distillation gas pressure survey reverse-blowing block-resistant device as claimed in claim 1, is characterized in that: described control system is provided with the man-auto be connected with relay and switches blowback button or timing blowback button.
6. the dry distillation gas pressure survey reverse-blowing block-resistant device as described in one of claim 1 to 5, is characterized in that: described pressure measuring element (5) is provided with protective device (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520185960.XU CN204535915U (en) | 2015-03-30 | 2015-03-30 | Dry distillation gas pressure survey reverse-blowing block-resistant device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520185960.XU CN204535915U (en) | 2015-03-30 | 2015-03-30 | Dry distillation gas pressure survey reverse-blowing block-resistant device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204535915U true CN204535915U (en) | 2015-08-05 |
Family
ID=53749904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520185960.XU Active CN204535915U (en) | 2015-03-30 | 2015-03-30 | Dry distillation gas pressure survey reverse-blowing block-resistant device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204535915U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107830305A (en) * | 2017-11-07 | 2018-03-23 | 成都易态科技有限公司 | Pressure system |
| CN109059999A (en) * | 2018-08-28 | 2018-12-21 | 长岭炼化岳阳工程设计有限公司 | Back flushing type measuring device and its application method |
-
2015
- 2015-03-30 CN CN201520185960.XU patent/CN204535915U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107830305A (en) * | 2017-11-07 | 2018-03-23 | 成都易态科技有限公司 | Pressure system |
| CN107830305B (en) * | 2017-11-07 | 2024-04-02 | 成都易态科技有限公司 | Pressure taking system |
| CN109059999A (en) * | 2018-08-28 | 2018-12-21 | 长岭炼化岳阳工程设计有限公司 | Back flushing type measuring device and its application method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204535915U (en) | Dry distillation gas pressure survey reverse-blowing block-resistant device | |
| CN204228478U (en) | Liquefied natural gas (LNG) hand-operated sampling device | |
| CN205541972U (en) | Rating of merit system of zircaloy fuel cladding integrality for nuclear power station under LOCA operating mode | |
| CN103293177B (en) | Quick heating and gasifying test device and application thereof | |
| CN204228125U (en) | A kind of thickness measuring detects auxiliary operating lever | |
| CN103263739A (en) | Lithium battery test box with automatic fire extinguishing device | |
| CN203455083U (en) | Acid dew point temperature tester | |
| CN201075014Y (en) | Multi-dynamical positive-negative pressure difference signal tube purging dredge device of on-line differential pressure flowmeter | |
| CN101750227B (en) | Operational capacity test device of low-temperature pressure gloves | |
| CN205209997U (en) | Anti ablation capability test device of material | |
| CN204556264U (en) | A kind of fan-shaped outlet measurement mechanism for firing chamber comprehensive performance test | |
| CN204924473U (en) | Double-layer heat-insulation suspension type temperature sensor | |
| CN201653651U (en) | Device for detecting air tightness of sealed vacuum sheath seal | |
| CN203052687U (en) | Soot blower capable of preventing coking of heating surface of coal-fired boiler | |
| CN206362454U (en) | A kind of low-temperature measurement mechanism of high temperature resistance furnace | |
| CN203069330U (en) | Cylinder sealing performance detection device | |
| CN203502161U (en) | Pressure sampling device for smoke/gas pressure detection of molten-salt chlorination furnace | |
| WO2010133281A3 (en) | Device for influencing the flow in a connecting pipe of a coal gasification reactor/gas cooler | |
| CN102954841A (en) | Flame detection device for annular sleeve kiln | |
| CN203981215U (en) | A kind of thermometric crystal fixed carbon probe | |
| CN209229231U (en) | A kind of insulation lightweight insulation sheath body | |
| CN203365356U (en) | Fast temperature-rising gasification testing device | |
| CN202485855U (en) | Transmitter mating pipeline blow off device | |
| CN204967009U (en) | Anticorrosive, dustproof electric appliance cabinet | |
| CN205656524U (en) | Thermal technology uses multiple spot control relay |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |