CN209180395U - A kind of operated pneumatic valve for probe tube - Google Patents
A kind of operated pneumatic valve for probe tube Download PDFInfo
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- CN209180395U CN209180395U CN201821866137.5U CN201821866137U CN209180395U CN 209180395 U CN209180395 U CN 209180395U CN 201821866137 U CN201821866137 U CN 201821866137U CN 209180395 U CN209180395 U CN 209180395U
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- flange
- connecting rod
- probe tube
- pneumatic valve
- cylinder
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Abstract
The utility model provides a kind of operated pneumatic valve for probe tube, belongs to sampling technical field of auxiliary equipment.This operated pneumatic valve includes cylinder and flange, flange is fixed on the bottom of cylinder, run through the through-hole of flange on flange with through-thickness, cylinder includes cylinder body and connecting rod, connecting rod is slidably connected with cylinder body, and the outer end of connecting rod is pierced by out of cylinder body, and the outer end of connecting rod is fixed with flashboard, the open slot passed through for flashboard is offered on the side wall of flange, open slot is connected with through-hole.The flange of operated pneumatic valve is set in the junction of probe tube, the two sides of flange pass through bolt respectively and flange is fixed on probe tube by other fixing pieces, it is driven by air pressure, connecting rod drives flashboard to move up and down, to make flashboard open or close the through-hole of flange, play the role of controlling the on and off of probe tube, easy for installation, precise control.
Description
Technical field
The utility model belongs to sampling technical field of auxiliary equipment, is related to a kind of operated pneumatic valve for probe tube.
Background technique
Sampler is that thermal power generation coal unit is installed on boiler flue for (containing to the smoke pollution source in discharge
NOX, SO2, CO, CO2, dust) device, sampler is generally made of components such as probe tube, mixers, and measurement effect is
Whether the discharge value for calculating the discharge amount of pollution sources and for controlling to adjust pollution sources reaches national requirements for environmental protection.
Sampler has the advantage that (1) is adaptable, can carry out sampled measurements to roomy flue；(2) mixing is equal
Even property is good, and the flue gas that can be extracted to each probe tube is uniformly mixed；(3) easy to maintain, cost is low.
The deficiency of above-mentioned sampler is that it is difficult to control the on and off of probe tube, and it is accurate to can not meet system
It participates in targetedly being precisely controlled adjusting requirement after measurement.
Summary of the invention
The utility model aiming at the above problems existing in the prior art, provides a kind of operated pneumatic valve for probe tube,
The technical problem to be solved by the utility model is to how to control the on and off of probe tube.
The purpose of this utility model can be realized by the following technical scheme:
A kind of operated pneumatic valve for probe tube, including cylinder and flange, the flange are fixed on the bottom of the cylinder,
Run through the through-hole of flange on the flange with through-thickness, the cylinder includes cylinder body and connecting rod, the connecting rod with
The cylinder body is slidably connected, and the outer end of connecting rod is pierced by out of described cylinder body, and the outer end of connecting rod is fixed with flashboard, described
The open slot passed through for the flashboard is offered on the side wall of flange, the open slot is connected with the through-hole.
Its working principle is that: an end of each probe tube grafting and is fixed in the through-hole of flange, each probe tube respectively
It is located at the side of flange, i.e. the flange junction that is set in probe tube, the two sides of flange pass through bolt respectively and other are solid
Determine part flange is fixed on probe tube, be driven by air pressure, connecting rod drive flashboard move up and down, thus make flashboard open or
The through-hole for closing flange plays the role of the on and off for controlling probe tube.
In a kind of above-mentioned operated pneumatic valve for probe tube, first piston and second are slidably connected in the cylinder body
Piston, the first piston and second piston are each attached in the connecting rod, are respectively equipped at the top and bottom of the cylinder
First air inlet and the second air inlet.In the structure, the first air inlet and the second air inlet are connected with pneumatic supply respectively, air-flow
Enter from the first air inlet, driving first piston moves down, and connecting rod drives flashboard to move down, and flashboard is made to close flange
Through-hole closes probe tube；Air-flow enters from the second air inlet, driving second piston move up, connecting rod drive flashboard to
Upper movement makes flashboard open the through-hole of flange, then opens probe tube.
In a kind of above-mentioned operated pneumatic valve for probe tube, the cylinder body is cylindrical, the first piston and
Two pistons are rounded and the two is coaxially disposed, and the connecting rod is axially extending along the cylinder body, and the first piston is fixed
In the inner end of the connecting rod, the second piston is fixed on the middle part of the connecting rod.
In a kind of above-mentioned operated pneumatic valve for probe tube, the operated pneumatic valve further includes fixed link, the fixation
The upper end of bar and the bottom of the cylinder are fixedly connected with, and the lower end of the fixed link is fixedly connected with the flange.Fixed link rises
To the effect of connecting flange and cylinder.
In a kind of above-mentioned operated pneumatic valve for probe tube, the fixed link is several, and each fixed link is and institute
It is parallel to state connecting rod.Fixed link can be two, be also possible to two or more, and fixed link is more, between flange and cylinder
It connects more firm.
Compared with prior art, as follows the advantages of the utility model:
The flange of operated pneumatic valve is set in the junction of probe tube, and the two sides of flange pass through bolt and other fixing pieces respectively
Flange is fixed on probe tube, is driven by air pressure, connecting rod drives flashboard to move up and down, so that flashboard be made to open or close
The through-hole of flange plays the role of the on and off for controlling probe tube, easy for installation, precise control.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of this operated pneumatic valve.
Fig. 2 is the structural schematic diagram of flange.
Fig. 3 is the schematic diagram that operated pneumatic valve is mounted on probe tube.
In figure, 1 cylinder；1a cylinder body；1b connecting rod；1c flashboard；1d first piston；1e second piston；The first air inlet of 1f；
The second air inlet of 1g；2 flanges；2a through-hole；2b open slot；3 fixed links；4 probe tubes.
Specific embodiment
It is specific embodiment of the utility model and in conjunction with attached drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these examples.
As shown in Figs. 1-2, this operated pneumatic valve includes cylinder 1 and flange 2, and flange 2 is fixed on the bottom of cylinder 1, on flange 2
Run through the through-hole 2a of flange 2 with through-thickness, cylinder 1 is sliding including cylinder body 1a and connecting rod 1b, connecting rod 1b and cylinder body 1a
Dynamic connection, the outer end of connecting rod 1b are pierced by out of cylinder body 1a, and the outer end of connecting rod 1b is fixed with flashboard 1c, the side of flange 2
The open slot 2b passed through for flashboard 1c is offered on wall, open slot 2b is connected with through-hole 2a.
As shown in figure 3, an end of each probe tube 4 grafting and is fixed in the through-hole 2a of flange 2, each probe tube respectively
4 are located at the side of flange 2, i.e. the junction that is set in probe tube 4 of flange 2, the two sides of flange 2 pass through respectively bolt and its
Flange 2 is fixed on probe tube 4 fixing piece by he, is driven by air pressure, and connecting rod 1b drives flashboard 1c to move up and down, to make
Flashboard 1c opens or closes the through-hole 2a of flange 2, plays the role of the on and off for controlling probe tube 4.
As shown in Figure 1, slidably connecting first piston 1d and second piston 1e in cylinder body 1a, first is living in the present embodiment
Plug 1d and second piston 1e is each attached on connecting rod 1b, and the top and bottom of cylinder 1 are respectively equipped with the first air inlet 1f and the
Two air inlet 1g.In the structure, the first air inlet 1f and the second air inlet 1g are connected with pneumatic supply respectively, air-flow from first into
Stomata 1f enters, and driving first piston 1d is moved down, and connecting rod 1b drives flashboard 1c to move down, and flashboard 1c is made to close flange
2 through-hole 2a, probe tube 4 is closed；Air-flow enters from the second air inlet 1g, and driving second piston 1e is moved up, connecting rod
1b drives flashboard 1c to move up, and so that flashboard 1c is opened the through-hole 2a of flange 2, then opens probe tube 4.
Preferably, cylinder body 1a is cylindrical, first piston 1d and second piston 1e is rounded and the two is coaxially disposed, even
Extension bar 1b is axially extending along cylinder body 1a's, and first piston 1d is fixed on the inner end of connecting rod 1b, and second piston 1e is fixed on company
The middle part of extension bar 1b.
As shown in Figs. 1-2, in the present embodiment, operated pneumatic valve further includes fixed link 3, upper end and the cylinder 1 of fixed link 3
Bottom is fixedly connected with, and lower end and the flange 2 of fixed link 3 are fixedly connected with.Fixed link 3 plays the role of connecting flange 2 and cylinder 1.
As shown in Figure 1, fixed link 3 is several, and each fixed link 3 is parallel with connecting rod 1b in the present embodiment.It is fixed
Bar 3 can be two, be also possible to two or more, fixed link more than 3, and the connection between flange 2 and cylinder 1 is more firm.
The specific embodiments described herein are merely examples of the spirit of the present invention.The utility model institute
Belonging to those skilled in the art can make various modifications or additions to the described embodiments or using similar
Mode substitute, but without departing from the spirit of the present application or beyond the scope of the appended claims.
Claims (5)
1. a kind of operated pneumatic valve for probe tube, which is characterized in that the operated pneumatic valve includes cylinder (1) and flange (2), institute
The bottom that flange (2) is fixed on the cylinder (1) is stated, runs through the through-hole of flange (2) on the flange (2) with through-thickness
(2a), the cylinder (1) include cylinder body (1a) and connecting rod (1b), and the connecting rod (1b) and the cylinder body (1a) sliding connect
It connects, the outer end of connecting rod (1b) is pierced by out of the cylinder body (1a), and the outer end of connecting rod (1b) is fixed with flashboard (1c), institute
The open slot (2b) for offering on the side wall of flange (2) and passing through for the flashboard (1c) is stated, the open slot (2b) is led to described
(2a) is connected in hole.
2. a kind of operated pneumatic valve for probe tube according to claim 1, which is characterized in that sliding in the cylinder body (1a)
Dynamic to be connected with first piston (1d) and second piston (1e), the first piston (1d) and second piston (1e) are each attached to described
In connecting rod (1b), the first air inlet (1f) and the second air inlet (1g) are respectively equipped at the top and bottom of the cylinder (1).
3. a kind of operated pneumatic valve for probe tube according to claim 2, which is characterized in that the cylinder body (1a) is in circle
Tubular, the first piston (1d) and second piston (1e) is rounded and the two is coaxially disposed, the connecting rod (1b) is along institute
The axially extending of cylinder body (1a) is stated, the first piston (1d) is fixed on the inner end of the connecting rod (1b), and described second is living
Plug (1e) is fixed on the middle part of the connecting rod (1b).
4. a kind of operated pneumatic valve for probe tube according to claim 1-3, which is characterized in that described pneumatic
Valve further includes fixed link (3), and the upper end of the fixed link (3) and the bottom of the cylinder (1) are fixedly connected with, the fixed link
(3) lower end is fixedly connected with the flange (2).
5. a kind of operated pneumatic valve for probe tube according to claim 4, which is characterized in that the fixed link (3) is
Several, each fixed link (3) is parallel with the connecting rod (1b).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821866137.5U CN209180395U (en) | 2018-11-13 | 2018-11-13 | A kind of operated pneumatic valve for probe tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821866137.5U CN209180395U (en) | 2018-11-13 | 2018-11-13 | A kind of operated pneumatic valve for probe tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209180395U true CN209180395U (en) | 2019-07-30 |
Family
ID=67364138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821866137.5U Active CN209180395U (en) | 2018-11-13 | 2018-11-13 | A kind of operated pneumatic valve for probe tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209180395U (en) |
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2018
- 2018-11-13 CN CN201821866137.5U patent/CN209180395U/en active Active
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