CN201575940U

CN201575940U - Novel sampling valve

Info

Publication number: CN201575940U
Application number: CN2009201388470U
Authority: CN
Inventors: 陈春生
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-06-04
Filing date: 2009-06-04
Publication date: 2010-09-08
Anticipated expiration: 2019-06-04

Abstract

The utility model provides a novel sampling valve with simple structure and low cost. The sampling valve comprises a valve body, a manometer and a valve rod; a liquid inlet, a liquid outlet and a sampling port are formed on the valve body; the liquid inlet is communicated with the liquid outlet through a liquid passage arranged in the valve body; the sampling port is communicated with the middle part of the liquid passage through a sampling passage arranged in the valve body; the valve rod is movably arranged on the valve body; one end of the valve rod extends onto the sampling passage and is arranged in such a manner that when the valve rod moves to one side of the liquid passage, the sampling passage is opened, and the liquid passage is closed at last, and when the valve rod moves away from one side of the liquid passage, the liquid passage is opened, and the sampling passage is closed at last; the other end of the valve rod is arranged on the outer side of the valve body; and the manometer is arranged on the liquid outlet. The novel sampling valve is applied to pressure fluid transmission pipelines.

Description

A kind of novel sample valve

Technical field

The utility model relates to a kind of sample valve, particularly a kind of novel sample valve that is used on the pressure fluid pipeline.

Background technology

In the oil field, FLUID TRANSPORTATION occasions such as the oily factory of white silk need be used sample valve, general and the tensimeter pairing use of this sample valve, specifically, on the pressure fluid conveyance conduit, not only need pipe fluid pressure is monitored, need convection cell to carry out sample analysis simultaneously, this just need be provided with tensimeter and sample valve simultaneously on fluid-transporting tubing, the result who does like this is when the tensimeter damage needs to change, because still there are high-pressure fluid in tensimeter and piping connection portion, go out in dismounting manometric process mesohigh fluid jet, this is that operating personnel are unwilling to see, and on the pipeline the initial construction cost that sample valve can increase equipment is set separately simultaneously.

The utility model content

The purpose of this utility model provides a kind of simple in structure, novel sample valve that cost is low.

The technical scheme that the utility model adopted is such: a kind of novel sample valve, comprise valve body, tensimeter and valve rod, described valve body is provided with inlet, liquid outlet and sample tap, described inlet and liquid outlet are communicated with by the fluid passage of being located in the valve body, described sample tap and fluid passage middle part are by being located at the sampling channel connection in the valve body, valve rod is located on the valve body movably, one end of valve rod extends on the sampling passage and is arranged to valve rod and opens sampling passage and final plant closure fluid passage when fluid passage one side displacement, and valve rod is opened fluid passage and final plant closure sampling passage to away from fluid passage one side displacement the time, the other end of valve rod is positioned at the valve body outside, and tensimeter is located on the liquid outlet.

By adopting the aforementioned techniques scheme, the beneficial effects of the utility model are: when described valve rod moved to the direction near fluid passage, the sampling passage between sample tap and the fluid passage was connected gradually, so just can take a sample to the fluid in the pipeline; When valve rod further when fluid passage moves until the closing liquid passage, fluid between fluid passage and the tensimeter is communicated with the effect of playing a pressure release with sample tap, can change tensimeter this moment under normal pressure, otherwise valve rod is moved until closing the sampling passage to the direction away from fluid passage, this moment, sample valve only played the pressure monitoring effect, whole sample valve compact conformation, easy to operate is arranged with traditional sample valve and tensimeter branch and compares initial construction cost and reduce greatly.

Description of drawings

Fig. 1 is the cut-open view of utility model embodiment;

The vertical view of Fig. 2 the utility model embodiment;

Embodiment

With reference to figure 1 and Fig. 2, embodiment of the present utility model discloses a kind of oil sample valve that is used on the conveyance conduit of oil field, it comprises valve body 1, the tensimeter (not shown), valve rod 2, cock 3 and nut 4, described valve body 1 is provided with inlet 11, liquid outlet 12 and sample tap 13, be communicated with by the fluid passage of being located in the valve body 1 112 between described inlet 11 and the liquid outlet 12, described sample tap 13 is communicated with by the sampling passage of being located in the valve body 1 131 with fluid passage 112 middle parts, cock 3 is revolved and is located on the valve body 1, valve rod 2 is located in the cock 3 by external thread rotary and the one end is positioned at valve body 1 outside, valve rod 2 is provided with limited step, nut 4 is covered on and is used in the cock 3 preventing that by limited step valve rod 2 from coming off from valve body 1, one end of valve rod 2 is positioned at valve body 1 outside, tensimeter is located on the liquid outlet 12, valve rod 2 other ends extend to sampling passage 131, valve rod 2 ends that are positioned at sampling 131 inboards, road are provided with lower seal taper surface 21 and last sealing taper surface 22, thereby when valve rod 2 during to fluid passage 112 1 side displacements, seal boss on last sealing taper surface 22 and the sampling passage 131 is separated, thereby sample tap 13 is connected with petroleum transportation pipeline with convenient sampling; When lower seal taper surface 21 contacts with fluid passage 112 and during closing liquid passage 112, the high pressure oil between fluid passage far-end and the tensimeter unexpected sputter situation can not occur by 131 pressure releases of sampling passage when changing tensimeter like this; Otherwise when valve rod 2 is then opened fluid passage 112 and finally closed sampling passage 131 by last sealing taper surface 22 to away from fluid passage 112 displacements the time.

Claims

1. novel sample valve, it is characterized in that: comprise valve body, tensimeter and valve rod, described valve body is provided with inlet, liquid outlet and sample tap, described inlet and liquid outlet are communicated with by the fluid passage of being located in the valve body, described sample tap and fluid passage middle part are by being located at the sampling channel connection in the valve body, valve rod is located on the valve body movably, one end of valve rod extends on the sampling passage and is arranged to valve rod and opens sampling passage and final plant closure fluid passage when fluid passage one side displacement, and valve rod is opened fluid passage and final plant closure sampling passage to away from fluid passage one side displacement the time, the other end of valve rod is positioned at the valve body outside, and tensimeter is located on the liquid outlet.