Excess voltage protector for high sensitivity drainer
Technical field
The present invention relates to gas pipe line drainage field, particularly a kind of excess voltage protector for high sensitivity drainer.
Background technique
Gas pipeline drainer overvoltage protection of the prior art or prevent the device of gas leakage; all exist the overvoltage protection dead band; when gas pressure just greater than the actual water seal pressure of hydathode (this moment gas pressure and the difference of water seal pressure be called the overvoltage protection dead band) time; this device can not cut off the coal gas that leaks immediately; have only when gas pressure during much larger than actual water seal pressure; hydathode could move, the shutoff overvoltage coal gas that leaks.In addition, because a large amount of drainings of hydathode, and cause overvoltage protector or prevent that the gas leakage device from closing automatically, the draining that results in blockage, being easy to generate the gas pipe line load increases the weight of, and produces the danger of slump.
Summary of the invention
For solving the problem that prior art exists, the purpose of this invention is to provide a kind of excess voltage protector for high sensitivity drainer, this device is by being provided with sensitivity regulator and moisture trap, and can make the dead band is zero, and draining is not obstructed when a large amount of draining of hydathode.
For achieving the above object, the present invention is achieved through the following technical solutions:
Excess voltage protector for high sensitivity drainer successively installs sensitivity regulator and moisture trap additional before the hydathode overvoltage protector; The upper outlet pipe of sensitivity regulator is connected with the moisture trap skirt, the moisture trap skirt is connected with hydathode overvoltage protector body import plate, the moisture trap draft tube outlets is formed excess voltage protector for high sensitivity drainer in hydathode overvoltage protector valve plate bottom; Described sensitivity regulator is connected to form successively by upper inlet pipe, lower inlet pipe, following outer pipe, upper outlet pipe, by dividing plate with the upper inlet pipe, the lower inlet pipe separates with following outer pipe, upper outlet pipe and the bottom communicates, form U-shaped water seal cavity, bottom of device is provided with hand hole; The body that described moisture trap is formed by connecting by the α angle by skirt and its axis of honeycomb duct.
The height h of described sensitivity regulator dividing plate is 150-3000mm; Axis angle α between described moisture trap skirt and the honeycomb duct is 90 °-270 °; On described moisture trap skirt, honeycomb duct, body hand hole inside and closure plate, one or more guide plates are installed.
Described sensitivity regulator, moisture trap can jointly, also can be arranged separately on piston type hydathode overvoltage protector or the hydathode leakage preventer.
Compared with prior art, the invention has the beneficial effects as follows:
1, be provided with sensitivity regulator, can make overvoltage coal gas dead band is zero.When the normal draining of hydathode, sewage by hydathode outlet, sensitivity regulator upper inlet pipe, lower inlet pipe, following outer pipe, upper outlet pipe, flows out sensitivity regulator successively; When the overvoltage of hydathode coal gas; overvoltage coal gas exports by hydathode; flow into the upper inlet pipe of sensitivity regulator; overvoltage coal gas obtains savings in its lower inlet pipe; along with gas pressure increases; liquid level is pressed to the lower end; before liquid level arrives the dividing plate lower end; overvoltage coal gas can not leak; when reaching the dividing plate lower end; gas pressure has surpassed the dead band of hydathode overvoltage protector valve closing, and overvoltage coal gas punctured ponding wherein in following outer pipe bottom moment, and it is by outer pipe down; upper outlet pipe and moisture trap; rapidly hydathode overvoltage protector valve plate is closed dead; thereby in all processes of coal gas overvoltage, prevented overvoltage coal gas to leak, equalled zero in the dead band of overvoltage coal gas.
2, be provided with moisture trap, big current be not related to close valve plate.Its working procedure is: when the normal draining of hydathode, sewage flows into the moisture trap skirt by the upper outlet pipe of sensitivity regulator, flows in the honeycomb duct then.Because the guide functions of honeycomb duct (or several guide plates); make sewage walk around the valve plate of hydathode overvoltage protector; crossed hydathode overvoltage protector water inlet short tube from surface current thereafter; in this process; even a large amount of water flow through; still can walk around the valve plate of hydathode overvoltage protector, can not produce and impact it.Therefore, can not close valve plate, stop draining because of a large amount of drainings of hydathode; When the overvoltage of hydathode coal gas; the overvoltage coal gas that surpasses the dead band pours the moisture trap skirt by upper outlet pipe moment of sensitivity regulator; and with the liquid level in the honeycomb duct; press to bottom and hydathode hand hole top; thereby make in the slit of overvoltage coal gas between liquid level and honeycomb duct lower end (A point),, rush at the bottom of hydathode overvoltage protector valve plate with bigger moment; rapidly valve plate is closed extremely, prevented overvoltage coal gas to leak.
The outstanding advantage of this device is: structure is extremely simple, does not have any movable piece, and its function is outstanding, reliable, and overvoltage coal gas can be tightly prevented in zero dead band, and draining in a large number is unblocked.Sensitivity regulator can be put aside the enough overvoltage coal gas that surpasses the dead band, and abrupt release is closed the valve plate of hydathode overvoltage protector rapidly, and making the dead band is zero; Moisture trap air-water separation effect is splendid, can make large amount of sewage walk around valve plate, and draining is unimpeded, can make overvoltage coal gas produce bigger moment again, closes valve plate rapidly, prevents overvoltage coal gas.Small and exquisite, the easy making of this device volume simultaneously, maintenance convenience, reliable performance, long service life.
Description of drawings
Fig. 1 is the normal hull-borne figure of excess voltage protector for high sensitivity drainer;
Fig. 2 is the initial shutoff overvoltage coal gas phase diagram of excess voltage protector for high sensitivity drainer;
Fig. 3 is the installation diagram of excess voltage protector for high sensitivity drainer.
Fig. 4 is that the A-A of Fig. 1, Fig. 2 is to view.
Embodiment
Below in conjunction with description of drawings preferred forms of the present invention:
See Fig. 1, Fig. 2, excess voltage protector for high sensitivity drainer successively installs sensitivity regulator and moisture trap additional before the hydathode overvoltage protector; The upper outlet pipe 6 of sensitivity regulator is connected with moisture trap skirt 7, moisture trap skirt 7 is connected with hydathode overvoltage protector body import plate 9,8 outlets of moisture trap honeycomb duct are formed excess voltage protector for high sensitivity drainer in hydathode overvoltage protector valve plate 12 bottoms; Described sensitivity regulator is connected to form successively by upper inlet pipe 1, lower inlet pipe 2, following outer pipe 5, upper outlet pipe 6, by dividing plate 3 with upper inlet pipe 1, lower inlet pipe 2 separates with following outer pipe 5, upper outlet pipe 6 and the bottom communicates, form U-shaped water seal cavity, bottom of device is provided with hand hole 4; The body that described moisture trap is formed by connecting by the α angle by skirt 7 and honeycomb duct 8 its axis.
The height h of sensitivity regulator dividing plate 3 is 150-3000mm; Axis angle α between moisture trap skirt 7 and the honeycomb duct 8 is 90 °-270 °; On moisture trap skirt 7, honeycomb duct 8, body hand hole 18 inside and the closure plate 13, one or more guide plates 19 are installed.
Described sensitivity regulator, moisture trap can jointly, also can be arranged separately on piston type hydathode overvoltage protector or the hydathode leakage preventer.
See Fig. 1, Fig. 2; the hydathode overvoltage protector comprises the closure plate 13 that is fixed in the waste pipe, be fixed on carriage 11 on the closure plate 13, be installed in valve plate 12, inlet tube 10 on the carriage 11; in the middle of closure plate 13, be provided with into water short tube 14; export 17 places and be provided with water outlet dividing plate 16, the opposite side top of the water outlet dividing plate 16 of outlet 17 is provided with ball float 15.The hydathode overvoltage protector has applied for that in Xiao Feng on November 13rd, 2005 Chinese utility model patent, the patent No. are ZL200520093626.8 by the inventor.
See Fig. 3; after opening dust flue valve 21; ponding in the gas pipe line 20 and dirty slag; enter in the hydathode 22; dirty slag deposits is regularly removed by its hand hole in the bottom of hydathode 22, and sewage is by hydathode 22 outlets; flow through sensitivity regulator 23, moisture trap 24, hydathode overvoltage protector 25 and sewer 26 successively, enter the ground jar.
In actual applications, sensitivity regulator, moisture trap can use jointly, also can be arranged separately on the devices such as piston type hydathode overvoltage protector or hydathode anti-leak.
Show through on-the-spot a large amount of tests and the long-term result that uses, patent of the present invention not only makes the water displacement of hydathode increase by tens times, unblocked, and can tightly, accurately cut off various (pipe network, resonance, dividing plate leak, inside and outside moisture evaporation) overvoltage coal gas, reaching the dead band is zero, and effect is splendid, and installation, maintenance simultaneously, cleaning are conveniently, long service life is applicable to various gas pipe line drainage meanss.