CN103033235A - Flushing-type water level gauge with remote quick closing device - Google Patents
Flushing-type water level gauge with remote quick closing device Download PDFInfo
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- CN103033235A CN103033235A CN2012105512596A CN201210551259A CN103033235A CN 103033235 A CN103033235 A CN 103033235A CN 2012105512596 A CN2012105512596 A CN 2012105512596A CN 201210551259 A CN201210551259 A CN 201210551259A CN 103033235 A CN103033235 A CN 103033235A
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- water level
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Abstract
The invention discloses a flushing-type water level gauge with a remote quick closing device. The flushing-type water level gauge comprises a water level gauge, an upper valve chamber and a lower valve chamber; and the flushing-type water level gauge is characterized in that the upper end and the lower end of the water level gauge are respectively connected with the upper valve chamber and the lower valve chamber through connecting blocks, the upper valve chamber and the lower valve chamber are connected with a furnace cylinder, the upper valve chamber and the lower valve chamber are internally and respectively provided with a valve body flow channel for communicating the furnace cylinder and the water level gauge, each valve body flow channel is sequentially provided with an isolating valve and a quick closing valve, a valve rod of each quick closing valve is fixedly connected with a connecting rod in a radial direction, outer ends of the connecting rods of the upper quick closing valve and the lower quick closing valve are connected through a pull rod, the pull rod is connected with a driving device, and the lower valve chamber is connected with a blow-down valve. According to the flushing-type water level gauge disclosed by the invention, the upper valve chamber and the lower valve chamber are additionally provided with the linkage quick closing valves which can be remotely opened and closed, thus remote quick opening-closing can be realized, and the safety of operation and maintenance can be increased; and the lower valve chamber is connected with the blow-down valve, flushing and sewage-draining can be carried out through the blow-down valve when the water level observation is affected by impurities attached on the surface of a mica sheet, the accuracy degree of water level is facilitated to observe, and the service life of the water level gauge mica sheet can be prolonged.
Description
Technical field
The invention belongs to field of boilers, relate to a kind of water-level gauge, particularly relate to a kind of Flushable water-level gauge with speed pass, distant place device, be used for the indication of boiler water level.
Background technology
The water level that keeps in the boiler determining is the most important condition of boiler work safety.Although scientific and technological development, the telemetering level meter that multiple principle of work occurred, provide very large convenience to operating personnel's supervision, but because telemetering level meter complex structure, affect the many factors of its accuracy, break down easily, and the water-level gauge principle of work is simple on the spot, indication is accurate, reliable operation, can also bring great convenience for maintenance and the debugging of the teletransmission gauge glass of various principle of work, therefore, it is still very necessary for safe operation of the boiler the on the spot water-level gauge that utilizes law of connected vessels work to be set.
Law of connected vessels is when water-level gauge is used on the spot, in, the low pressure cooker furnace superintendent adopts the glass plate water-level gauge, but the poor-performing of its high temperature resistant alkaline stove water erosion is not suitable for high pressure and superpressure boiler.Mica sheet has certain penetrability and higher intensity, owing to can adopt the superimposed method of the less mica sheet of thickness to reach needed gross thickness, not only the total medial and lateral temperature difference of mica sheet significantly reduces, and the temperature difference of every thin slice mica is less, so the thermal stress that the mica sheet of gauge glass produces is less.In addition, mica sheet has certain elasticity, is easy to sealing between mica sheet and between mica sheet and the metal, and can bears a small amount of distortion, so the dum boiler of high pressure and the above grade of high pressure adopts the mica water-level gauge usually.
When the mica water-level gauge used at the dum boiler of high pressure and the above grade of high pressure, owing to have impurity in the stove water, long-time running was attached to the mica sheet surface, transparency was reduced, so that the observation and comparison of water level is difficult; Medium temperature, pressure in the high-pressure boiler are higher, if the emergency conditioies such as generation leakage will be brought great inconvenience to operation, also threaten operator's personal safety simultaneously; Consider above-mentioned 2 points, develop a kind of Flushable water-level gauge with speed pass, distant place device is the new problem that needs to be resolved hurrily always.
Summary of the invention
Long-time running mica sheet surface attachment impurity transparency reduces and the close high problem of body of heater operational danger in order to solve, the invention provides a kind of Flushable water-level gauge with speed pass, distant place device, principle of work is simple, accurate, the long service life, safe and reliable of water level indication.
The technical solution used in the present invention is: a kind of Flushable water-level gauge that closes device with distant place speed, comprise gauge glass, upper valve chamber and lower valve chamber, it is characterized in that the gauge glass top and bottom are connected with lower valve chamber with upper valve chamber respectively by coupling block, upper valve chamber is connected with the stove cylinder with lower valve chamber, be respectively equipped with valve flowing channel in upper valve chamber and the lower valve chamber with stove cylinder and gauge glass UNICOM, be provided with successively isolation valve and quick-closing valve on the valve flowing channel, be connected with handwheel on the isolation valve valve rod, radially be fixedly connected with connecting rod on the quick-closing valve valve rod, the connecting rod outer end of two quick-closing valves connects by pull bar up and down, pull bar is connected with drive unit, and drive unit is connected with remote controllers; Be connected with blowoff valve in the lower valve chamber.
It is three line acme threads that described quick-closing valve valve rod feeds screw thread, and closing opening angle is 120 degree, is fixedly connected with switch knob on the quick-closing valve valve rod of the connecting rod outside; It is single thread that the isolation valve valve rod feeds screw thread.
Be provided with the table body in the described gauge glass, be provided with vertical water channel in the table body, the front and back of vertical water channel is provided with open slit on the table body, is fixed with mica sheet by limiting plate and pressure strip on the slit, and table body rear portion is provided with illumination cavity, is provided with illuminating lamp in the illumination cavity.
Slit open on the described table body is intermittent type; Be provided with rubbery asbestos gasket between mica sheet and table body, mica sheet is multilayer doubling laminated structure, and thickness is 0.6 to 0.9 millimeter.
The external transparent protective frame that is provided with under shed of described table.
Opening port under the described protective frame band.
Described blowoff valve is connected on the valve flowing channel between isolation valve and quick-closing valve.
Be connected with blowoff valve on the valve flowing channel between the isolation valve of described upper valve chamber, quick-closing valve, the blowoff valve outlet is connected with aqueduct.
Described pull bar middle part connects by spring, and the lower end is connected with drive unit by the transmission handle.
Be connected with valve seat on the inner valve disc of described isolation valve valve rod, the valve gap that cooperates with the isolation valve threaded stem is connected with valve body, and isolation valve valve rod and valve cover chamber are provided with the Stuffing box bushing with the cap nut shutoff; Be connected with valve seat on the inner valve disc of quick-closing valve valve rod, the valve gap that cooperates with the quick-closing valve threaded stem is connected with valve body, and quick-closing valve valve rod and valve cover chamber are provided with the Stuffing box bushing with the cap nut shutoff.
But the interlock quick-closing valve of remote switch is installed in the present invention additional in upper lower valve chamber, can realize long-range quick shutoff, improve the security of operation maintenance, and connect blowoff valve in lower valve chamber, when mica sheet surface attachment impurity effect water level is observed, can pass through the blowoff valve flushing pollution discharge, be conducive to observe the accuracy of water level, and can prolong the serviceable life of water-level gauge mica sheet.
Description of drawings
Fig. 1 is embodiment of the invention structural front view;
Fig. 2 is embodiment of the invention structure side view;
Fig. 3 is A-A cross section view among lower valve body Fig. 1;
Fig. 4 is that gauge glass table body mica sheet is installed view;
Title after the figure acceptance of the bid: 1 gauge glass; Valve chamber on 2; 3 lower valve chamber; 4 coupling blocks; 5 handwheels; 6 connecting rods; 7 pull bars; 8 blowoff valves; 9 handles; 10 table bodies; 11 vertical water channels; 12 limiting plates; 13 pressure strips; 14 mica sheets; 15 illumination cavity; 16 protective frames; 17 springs; 18 transmission handles; 19 isolation valve valve rods; 20,26 valve seats; 21,27 valve gaps; 22 valve bodies; 23,28 cap nuts; 24,29 Stuffing box bushings; 25 quick-closing valve valve rods; 30,31 valve discs.
Embodiment
The embodiment of the invention as shown in Figures 1 to 4, this Flushable water-level gauge that closes device with distant place speed is provided with gauge glass 1, upper valve chamber 2 and lower valve chamber 3, are connected with lower valve chamber with upper valve chamber 2 respectively by coupling block 4 and are connected in gauge glass 1 top and bottom, upper valve chamber 2 is connected with lower valve chamber and is connected with the stove tube inner chamber, be respectively equipped with valve flowing channel in upper valve chamber 2 and the lower valve chamber 3 with stove cylinder and gauge glass 1 UNICOM, consist of UNICOM's body; Be provided with successively isolation valve and quick-closing valve on the valve flowing channel, quick-closing valve places near gauge glass 1 one sides, and it is single thread that isolation valve valve rod 19 feeds screw thread, is connected with handwheel 5 on the isolation valve valve rod 19 and is used for manual rotary switch; Radially be fixedly connected with connecting rod 6 on the quick-closing valve valve rod 25, connecting rod 6 outer ends of two quick-closing valves connect by pull bar 7 up and down, pull bar 7 middle parts connect by spring 17 and are used for buffering, pull bar 7 lower ends are by transmission handle 18 connecting drive devices, drive unit is connected with remote controllers, it is three line acme threads that quick-closing valve valve rod 25 feeds screw thread, closing opening angle is 120 degree, by the action of remote controllers accessory drive, driving pull bar 7 drivening rods 6 and the 25 1 hundred 20 degree rotations of quick-closing valve valve rod realize closing down fast; Be fixedly connected with switch knob 9 on connecting rod 6 outside quick-closing valve valve rods 25, can be used for hand switch; Be connected with valve seat 20 on the isolation valve valve rod 19 inner valve discs 30, be connected with valve body 22 with the valve gap 21 of isolation valve valve rod 19 threaded engagement, 21 of isolation valve valve rod 19 and valve gaps are provided with the Stuffing box bushing 24 with cap nut 23 shutoff; Be connected with valve seat 26 on the quick-closing valve valve rod 25 inner valve discs 31, be connected with valve body 22 with the valve gap 27 of quick-closing valve valve rod 25 threaded engagement, 27 of quick-closing valve valve rod 25 and valve gaps are provided with the Stuffing box bushing 29 with cap nut 28 shutoff; Be connected with blowoff valve 8 in the lower valve chamber 3 and be used for flushing pollution discharge; Be provided with table body 10 in the gauge glass 1, be provided with vertical water channel 11 in the table body 10, the front and back of vertical water channel 11 is provided with open interrupted slit on the table body 10, present embodiment is two sections, gap is positioned at 1/3rd places, below, be fixed with mica sheet 14 by limiting plate 12 and pressure strip 13 on the slit, mica sheet 14 and 10 of bodies of table are provided with rubbery asbestos gasket, mica sheet 14 is multilayer doubling laminated structure, thickness is 0.6 to 0.9 millimeter, and table body 10 rear portions are provided with illumination cavity 15, is provided with illuminating lamp in the illumination cavity 15 and is used for the clear demonstration of front water level that makes backlight, illuminating lamp is 6 15 watts of bulbs, also available LED lamp; Be provided with transparent protective frame 16 outside the table body 10, be used for preventing the unexpected injury that the mica sheet explosion causes; When the present invention uses, not only can realize reliable hand switch with isolation valve, but also add the interlock quick-closing valve of remote switch in upper lower valve chamber, can realize long-range quick shutoff, improve the security of operation maintenance, and connect blowoff valve in lower valve chamber, when mica sheet surface attachment impurity effect water level is observed, can pass through the blowoff valve flushing pollution discharge, be conducive to observe the accuracy of water level, and can prolong the serviceable life of water-level gauge mica sheet, protective frame can prevent that the mica sheet explosion from causing unexpected injury, appearance easy to implement simple for structure is suitable for applying.
But blowoff valve connecting drive device during the invention process, it is far away that drive unit is connected to remote controllers, cooperates with quick-closing valve to realize long-range flushing, further reduces the danger of low coverage operation; Blowoff valve can be connected on the valve flowing channel between isolation valve and quick-closing valve, and quick-closing valve cooperates the control flushing with isolation valve; Also can connect blowoff valve at valve flowing channel on the upper valve chamber or between isolation valve, quick-closing valve, the blowoff valve outlet is connected with aqueduct, can utilize furnace pressure upwards mica sheet to be washed, and realizes comprehensively cleaning; Downward opening port can be set in the protective frame bottom be used for drainage, prevent that mica sheet explosion spray from causing unexpected injury.
Claims (10)
1. Flushable water-level gauge that closes device with distant place speed, comprise gauge glass (1), upper valve chamber (2) and lower valve chamber (3), it is characterized in that gauge glass (1) top and bottom are connected 3 with upper valve chamber (2) with lower valve chamber respectively by coupling block (4)) be connected, upper valve chamber (2) is connected 3 with lower valve chamber) be connected with the stove cylinder, be respectively equipped with valve flowing channel in upper valve chamber (2) and the lower valve chamber (3) with stove cylinder and gauge glass (1) UNICOM, be provided with successively isolation valve and quick-closing valve on the valve flowing channel, be connected with handwheel (5) on the isolation valve valve rod (19), radially be fixedly connected with connecting rod (6) on the quick-closing valve valve rod (25), the connecting rod of two quick-closing valves (6) outer end connects by pull bar (7) up and down, pull bar (7) is connected with drive unit, and drive unit is connected with remote controllers; Be connected with blowoff valve (8) in the lower valve chamber (3).
2. according to claim 1 with the fast Flushable water-level gauge that closes device in a distant place, it is characterized in that it is three line acme threads that described quick-closing valve valve rod (25) feeds screw thread, closing opening angle is 120 degree, is fixedly connected with switch knob (9) on connecting rod (6) outside quick-closing valve valve rod (25); It is single thread that isolation valve valve rod (19) feeds screw thread.
3. according to claim 1 with the fast Flushable water-level gauge that closes device in a distant place, it is characterized in that being provided with in the described gauge glass (1) table body (10), be provided with vertical water channel (11) in the table body (10), the front and back of the upper vertical water channel (11) of table body (10) is provided with open slit, be fixed with mica sheet (14) by limiting plate (12) and pressure strip (13) on the slit, table body (10) rear portion is provided with illumination cavity (15), and illumination cavity is provided with illuminating lamp in (15).
4. the Flushable water-level gauge with speed pass, distant place device according to claim 3 is characterized in that the upper open slit of described table body (10) is intermittent type; Be provided with rubbery asbestos gasket between mica sheet (14) and table body (10), mica sheet (14) is multilayer doubling laminated structure, and thickness is 0.6 to 0.9 millimeter.
5. the Flushable water-level gauge with speed pass, distant place device according to claim 3 is characterized in that the outer transparent protective frame (16) that is provided with of described table body (10).
6. the Flushable water-level gauge with speed pass, distant place device according to claim 5 is characterized in that the lower opening port of described protective frame (16) band.
7. according to claim 1ly close the Flushable water-level gauge of device with distant place speed, it is characterized in that described blowoff valve (8) is connected on the valve flowing channel between isolation valve and quick-closing valve.
8. according to claim 7ly close the Flushable water-level gauge of device with distant place speed, it is characterized in that being connected with blowoff valve (8) on the valve flowing channel between the isolation valve, quick-closing valve of described upper valve chamber (2), blowoff valve (8) outlet is connected with aqueduct.
9. according to claim 1 to 8 arbitrary described Flushable water-level gauges with speed pass, distant place device, it is characterized in that described pull bar (7) middle part connects by spring (17), the lower end is connected with drive unit by transmission handle (18).
10. according to claim 1 to 8 arbitrary described Flushable water-level gauges that close device with distant place speed, it is characterized in that being connected with on the inner valve disc of described isolation valve valve rod (19) (30) valve seat (20), be connected with valve body (22) with the valve gap (21) of isolation valve valve rod (19) threaded engagement, be provided with the Stuffing box bushing (24) with cap nut (23) shutoff between isolation valve valve rod (19) and valve gap (21); Be connected with valve seat (26) on the inner valve disc of quick-closing valve valve rod (25) (31), be connected with valve body (22) with the valve gap (27) of quick-closing valve valve rod (25) threaded engagement, be provided with the Stuffing box bushing (29) with cap nut (28) shutoff between quick-closing valve valve rod (25) and valve gap (27).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105512596A CN103033235A (en) | 2012-12-19 | 2012-12-19 | Flushing-type water level gauge with remote quick closing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105512596A CN103033235A (en) | 2012-12-19 | 2012-12-19 | Flushing-type water level gauge with remote quick closing device |
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| Publication Number | Publication Date |
|---|---|
| CN103033235A true CN103033235A (en) | 2013-04-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012105512596A Pending CN103033235A (en) | 2012-12-19 | 2012-12-19 | Flushing-type water level gauge with remote quick closing device |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2222904Y (en) * | 1995-03-13 | 1996-03-20 | 邹锡安 | Valve for liquid level meter for boiler |
| CN101761364A (en) * | 2009-12-22 | 2010-06-30 | 马鞍山钢铁股份有限公司 | Method for generating electricity by using low-pressure saturated steam |
| CN202300547U (en) * | 2011-09-27 | 2012-07-04 | 杭州吉通机电有限公司 | Quick-closing control device |
| CN202938880U (en) * | 2012-12-19 | 2013-05-15 | 中国船舶重工集团公司第七�三研究所 | Water level indicator provided with remote fast-closing device and capable of being washed |
-
2012
- 2012-12-19 CN CN2012105512596A patent/CN103033235A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2222904Y (en) * | 1995-03-13 | 1996-03-20 | 邹锡安 | Valve for liquid level meter for boiler |
| CN101761364A (en) * | 2009-12-22 | 2010-06-30 | 马鞍山钢铁股份有限公司 | Method for generating electricity by using low-pressure saturated steam |
| CN202300547U (en) * | 2011-09-27 | 2012-07-04 | 杭州吉通机电有限公司 | Quick-closing control device |
| CN202938880U (en) * | 2012-12-19 | 2013-05-15 | 中国船舶重工集团公司第七�三研究所 | Water level indicator provided with remote fast-closing device and capable of being washed |
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Application publication date: 20130410 |