CN209602472U - One kind being used for gasification furnace pressure on-line measuring device - Google Patents
One kind being used for gasification furnace pressure on-line measuring device Download PDFInfo
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- CN209602472U CN209602472U CN201920220480.0U CN201920220480U CN209602472U CN 209602472 U CN209602472 U CN 209602472U CN 201920220480 U CN201920220480 U CN 201920220480U CN 209602472 U CN209602472 U CN 209602472U
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- gasification furnace
- regulating valve
- measuring device
- flow meter
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Abstract
One kind being used for gasification furnace pressure on-line measuring device, the pressure detecting pipe including being mounted on gasification furnace top, and pressure detecting pipe is connect with regulating valve, and the regulating valve other end is connect with type double flow meter, and the type double flow meter other end is connected to source nitrogen；Pressure detecting pipe is equipped with pressure transmitter, and pressure transmitter is between gasification furnace and regulating valve；The regulating valve and type double flow meter is electrically connected with the controller.The present apparatus is cheap, long service life, achievees the purpose that real-time monitoring gasification furnace pressure using simple and practical method.
Description
Technical field
The utility model belongs to pressure test device field, in particular to a kind of to fill for gasification furnace pressure on-line checking
It sets.
Background technique
Faucet of the production process that gasifies as coal chemical technology, with the country or even Coal Chemical Industry in World production scale and technology
It continues to develop and develops, nowadays coal chemical technology has miscellaneous gasification production technique packet, but either any work
Skill packet can not all avoid the production environment that high temperature and pressure hyperoxia height is worn in gasification furnace.In order to bear building ring in gasification furnace
Border, the interior laying refractory brick of furnace is for completely cutting off the high abrasion environment of gasification furnace inner combustion chamber high temperature and pressure, due to building ring in gasification furnace
The continuous operation period of the reason of border, gasification furnace all will not be too long, this is also meaned that for gasification furnace pressure on-line monitoring
It always is the problem of industry.
In view of these situations, the pressure transmitter manufacturer of external import brand also has developed a series of gold-plated in succession
Diaphragm pressure transmitter, Buddha's warrior attendant diaphragm pressure transmitter etc., but be generally also not according to the cycle of operation from the point of view of live service condition
Too ideal while high expense also allows many medium-sized and small enterprises to be hung back.
Utility model content
It is provided by the utility model a kind of online for gasification furnace pressure in view of technical problem present in background technique
Detection device, cheap, long service life achieve the purpose that real-time monitoring gasification furnace pressure using simple and practical method.
In order to solve the above-mentioned technical problem, the utility model takes following technical solution to realize:
One kind being used for gasification furnace pressure on-line measuring device, the pressure detecting pipe including being mounted on gasification furnace top, pressure
Detection pipe is connect with regulating valve, and the regulating valve other end is connect with type double flow meter, and the type double flow meter other end is connected to source nitrogen；Pressure
Power detection pipe is equipped with pressure transmitter, and pressure transmitter is between gasification furnace and regulating valve；The regulating valve and bidirectional flow
Meter is electrically connected with the controller.
In preferred scheme, the pressure of nitrogen is gasification furnace chamber pressure during normal production in the source nitrogen
1.2 times to 1.8 times.
In preferred scheme, the regulating valve is air to close pneumatic control valve.
In preferred scheme, the controller is PID controller.
This patent can reach it is following the utility model has the advantages that
1, the structure of the present apparatus is simple, prevents gasification furnace high-temperature gas from scorching pressure transmitter by being passed through nitrogen；Benefit
The aperture of regulating valve is adjusted with controller, so that nitrogen pressure be made to be consistent with the pressure in gasification furnace, reaches measurement gasification
The purpose of furnace pressure power, measurement method is simple and practical, has good generalization；
2, regulating valve use air to close pneumatic control valve, the safety of the present apparatus can be improved, when pneumatic control valve die it is disconnected
In the case where electricity and dropout, valve can be shown in a fully open operation automatically, guarantee pressure detecting pipe and equipment safety.
Detailed description of the invention
The utility model is described in further detail with reference to the accompanying drawings and examples:
Fig. 1 is the utility model connection schematic diagram；
Fig. 2 is that Tthe utility model system controls block diagram.
In figure: gasification furnace 1, refractory brick 2, pressure detecting pipe 3, pressure transmitter 4, regulating valve 5, type double flow meter 6, nitrogen
Source 7.
Specific embodiment
Preferred scheme is as shown in Figure 1, a kind of be used for gasification furnace pressure on-line measuring device, including is mounted on gasification furnace 1
The combustion chamber of the pressure detecting pipe 3 on top, the gasification furnace 1 is built by refractory brick 2, and pressure detecting pipe 3 and regulating valve 5 connect
It connects, 5 other end of regulating valve is connect with type double flow meter 6, and 6 other end of type double flow meter is connected to source nitrogen 7；Pressure detecting pipe 3 is set
There is pressure transmitter 4, pressure transmitter 4 is between gasification furnace 1 and regulating valve 5；The regulating valve 5 and type double flow meter 6
It is electrically connected with the controller；
Pressure detecting pipe 3 uses the seamless steel pipe of the 304SS material of DN25 or DN50, and pressure transmitter 4 is prevented for common
EJA430E or Rosemount3051T can be used in quick-fried type pressure transmitter, model, and pressure transmitter 4 uses DN12 or DN25
Branch pipe be connected with pressure detecting pipe 3；
6 range bound of type double flow meter is set as the letter of the flowmeter in -10Nm3/h ~ 10Nm3/h(i.e. control system
Number 4mA corresponding -10Nm3/h, 12mA correspond to 0Nm3/h, and 20mA corresponds to 10Nm3/h), guarantee regulating valve 5 adjusts nitrogen by controller
Gas charge flow rate is 0Nm3/h.
Preferred scheme is as shown in Figure 1, the pressure of nitrogen is the combustion chamber during normal production of gasification furnace 1 in the source nitrogen 7
1.2 times to 1.8 times of pressure, the pressure for being preferably chosen nitrogen is 1.5 times of the chamber pressure during normal production of gasification furnace 1,
Guarantee that the gas in gasification furnace 1 will not seal in 7 system of source nitrogen.
Preferred scheme as shown in Figure 1, regulating valve 5 is air to close pneumatic control valve, i.e. open by failure, when pneumatic control valve is disconnected
In the case where gas power-off and dropout, valve can be shown in a fully open operation automatically, guarantee the safety of measurement pipeline.
Preferred scheme is as shown in Figure 1, controller is PID controller, and cheap, performance is stablized, and is able to satisfy this technology
Scheme requirement.
The working principle of whole device is as follows:
1, the nitrogen in source nitrogen 7 is passed into pressure detecting pipe 3, enters gasification furnace through type double flow meter 6 and regulating valve 5
1 combustion chamber；
2, pressure transmitter 4 is arranged close at 1 combustion chamber of gasification furnace, guarantees the true and reliable of pressure detection value；
3, the opening size that regulating valve 5 is adjusted by PID controller, thus by 6 flow control of type double flow meter in 0Nm3/
h；In nitrogen pressure after illustrating regulating valve 5 at this time and gasification furnace 1 pressure reaches equilibrium state, and pressure transmitter 4 measures
Pressure value is the actual pressure value in gasification furnace 1；
4, when pressure changes in gasification furnace 1 or when 7 ductwork pressure of source nitrogen changes, regulating valve 5 always with
Type double flow meter 6 carries out self-regulated association, by the stable control of the nitrogen charge flow rate in source nitrogen 7 in 0Nm3/h, guarantees pressure
The accuracy of 4 measurement data of transmitter.
The above embodiments are only the optimal technical scheme of the utility model, and are not construed as the limit for the utility model
System, the technical solution that the protection scope of the utility model should be recorded with claim, the technical solution recorded including claim
The equivalents of middle technical characteristic are protection scope.Equivalent replacement i.e. within this range is improved, also in the utility model
Protection scope within.
Claims (4)
1. one kind is used for gasification furnace pressure on-line measuring device, it is characterised in that: the pressure including being mounted on gasification furnace (1) top
Detection pipe (3), pressure detecting pipe (3) are connect with regulating valve (5), and regulating valve (5) other end is connect with type double flow meter (6), double
Source nitrogen (7) are connected to flowmeter (6) other end；Pressure detecting pipe (3) is equipped with pressure transmitter (4), pressure transmitter (4) position
Between gasification furnace (1) and regulating valve (5)；The regulating valve (5) and type double flow meter (6) is electrically connected with the controller.
2. according to claim 1 a kind of for gasification furnace pressure on-line measuring device, it is characterised in that: the source nitrogen
(7) pressure of nitrogen is 1.2 times to 1.8 times of gasification furnace (1) chamber pressure during normal production in.
3. according to claim 1 a kind of for gasification furnace pressure on-line measuring device, it is characterised in that: regulating valve (5)
For air to close pneumatic control valve.
4. a kind of gasification furnace pressure on-line measuring device to be used for according to claim 1, it is characterised in that: controller is
PID controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920220480.0U CN209602472U (en) | 2019-02-21 | 2019-02-21 | One kind being used for gasification furnace pressure on-line measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920220480.0U CN209602472U (en) | 2019-02-21 | 2019-02-21 | One kind being used for gasification furnace pressure on-line measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209602472U true CN209602472U (en) | 2019-11-08 |
Family
ID=68404140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920220480.0U Active CN209602472U (en) | 2019-02-21 | 2019-02-21 | One kind being used for gasification furnace pressure on-line measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209602472U (en) |
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2019
- 2019-02-21 CN CN201920220480.0U patent/CN209602472U/en active Active
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