A kind of valve switch upper and lower positioning auxiliary deviceTechnical field
The invention belongs to mineral slurry pipeline valve technology field, be specifically related to a kind of valve switch upper and lower positioning auxiliary device.
Background technique
High pressure minerals slurry pipeline transports, be always one efficient, energy-conservation, economic novel field industry, but also also exist, technical requirements is high, safety coefficient requires high objective problem, mainly slurry process pipeline, in slurry preparation or conveying, the irregular turbulent fluctuation of granulin molecule and intermolecular generation, larger friction will be there will be, prepare at slurry, equipment is enabled or the operation such as switching, all relate to opening/shutting valve, if stronger wearing and tearing will be caused even to damage valve opening and closing is not in place, so the effect that valve blocked or connected pipeline medium can not play.Under normal circumstances, one is spool or the knife plate of valve, only clearly could see that suitable work is spacing in the process of assembling, debugging, if valve is directly installed on pipeline and just can not accurately grasps spacing state, so will easily occur, when can not enter withdrawing line when opening and closing or exit withdrawing line, if the short meeting of screw rod is stuck, if screw rod is long, the damage of seal arrangement can be caused.If install limit stoper on the other hand in debug process, the keying moment of valve under work pressure situation just can be avoided excessive or be not closed completely, cause screw mandrel damage, copper sheathing comes off, Sealing is impaired, or the original paper wearing and tearing to cause because of flow resistance, cause valve reduction in working life, high cost, affect organization of production and technological operation.
Summary of the invention
The object of the present invention is to provide a kind of valve switch upper and lower positioning auxiliary device, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the invention provides following technological scheme: a kind of valve switch upper and lower positioning auxiliary device, comprise upper and lower spacing indicating piece, upper limit bit slice, fixing screw mandrel, lower limit bit slice, valve body and valve, described valve body is provided with fixing screw mandrel, described fixing screw mandrel is socketed with nut, the two ends up and down of described fixing screw mandrel are respectively equipped with upper limit bit slice and lower limit bit slice, and described fixing screw mandrel is connected with valve body with lower limit bit slice by upper limit bit slice, and the bottom of described valve body is provided with valve.
Preferably, described fixing screw mandrel is provided with one altogether.
Technique effect of the present invention and advantage: the application of the upper and lower limit stoper of this valve in production practices, efficiently solve because valve switch position judgment is inaccurate, the switch caused crosses position or situation not in place, reduce wearing and tearing and the damage of valve, effective poppet utilization efficiency, reduce cost of production, improve operation economic benefit.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
In figure: 1, upper and lower spacing indicating piece; 2, upper limit bit slice; 3, fixing screw mandrel; 4, lower limit bit slice; 5, valve body; With 6, valve.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technological scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
The invention provides a kind of valve switch upper and lower positioning auxiliary device as shown in Figure 1, comprise upper and lower spacing indicating piece 1, upper limit bit slice 2, fixing screw mandrel 3, lower limit bit slice 4, valve body 5 and valve 6, described valve body 5 is provided with fixing screw mandrel 3, described fixing screw mandrel 3 is provided with one altogether, described fixing screw mandrel 3 is socketed with nut, the two ends up and down of described fixing screw mandrel 3 are respectively equipped with upper limit bit slice 2 and lower limit bit slice 4, described fixing screw mandrel 3 is connected with valve body 5 with lower limit bit slice 4 by upper limit bit slice 2, and the bottom of described valve body 5 is provided with valve 6.
Working principle: the fixing screw mandrel 3 of one, device on valve body 5, fixing screw mandrel 3 normally can be inserted in nut, and nut Main Function is the upper and lower restraining position of adjustment, device upper limit bit slice 2 and lower limit bit slice 4 on fixing screw mandrel 3, this upper limit bit slice 2 and lower limit bit slice 4 effect are connected and fixed screw mandrel 3 and valve body 5, fixing screw mandrel 3 is fixed on valve body 5, another effect is then, upper limit bit slice 2 and lower limit bit slice 4 are exactly valve correct position spacing up and down, assemble at valve 6, just related elements is inserted in debug process, nut is adjusted to suitable position simultaneously, no matter valve 6 is out or closes, when pass is to correct position, nut will withstand on upper limit bit slice 2 and lower limit bit slice 4, so with regard to effective control valve 6 position of energy, avoid switch not in place or cross position phenomenon and occur, the application of the upper and lower limit stoper of this valve in production practices, efficiently solve because valve switch position judgment is inaccurate, the switch caused crosses position or situation not in place, reduce wearing and tearing and the damage of valve, effective poppet utilization efficiency, reduce cost of production, improve operation economic benefit.
Last it is noted that the foregoing is only the preferred embodiments of the present invention; be not limited to the present invention; although with reference to previous embodiment to invention has been detailed description; for a person skilled in the art; it still can be modified to the technological scheme described in foregoing embodiments; or equivalent replacement is carried out to wherein portion of techniques feature; within the spirit and principles in the present invention all; any amendment of doing, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.