CN201420530Y

CN201420530Y - Novel check valve

Info

Publication number: CN201420530Y
Application number: CN2009200895196U
Authority: CN
Inventors: 刘安新; 李肃; 徐正国
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-04-10
Filing date: 2009-04-10
Publication date: 2010-03-10
Anticipated expiration: 2019-04-10

Abstract

A novel check valve is a device on the flow of the mouth of an oil-gas well and aims to overcome other technical defects. The novel check valve is structurally characterized in that two O-shaped ringsare mounted on a valve base; the valve base is mounted in a main body and positioned by a stable nail; the conical surface of a valve core is matched with the internal conical surface of the valve base under the action of a spring; the other end of the valve core is mounted in a support frame; the support frame and the valve core are mounted in the main body and positioned by clamp springs; two symmetrical clean ports are formed on two sides of the main body; copper pads are mounted on the clean ports; and clean caps are in threaded connection with the clean ports and sealed by the copper pads. The utility model has the advantages that firstly, the novel check valve is of an integral structure and the valve base and the valve core are mounted in the valve body, so that the structure is simple; secondly, the clean ports are formed on two sides of the valve body and the check valve is not required to be dismounted when being cleaned; and thirdly, the three-way support frame is arrangedin the valve body and has small oil flow resistance, so that the valve core can operate under the higher coaxiality.

Description

A kind of novel ball-and-seat

One, technical field:

The utility model relates to a device on the oil gas well well head flow process, especially a kind of novel ball-and-seat.

Two, background technology:

The present ball-and-seat that is installed on the well head mainly contains two kinds, and a kind of is the valve ball ball-and-seat, and it is that a kind of dependence valve ball weight realizes check action, and it can only be perpendicular to floor mounted, during the cleaning ball-and-seat, ball-and-seat must be pulled down from flow process.Another kind is the ball-and-seat that level is installed, and it has changed oily flow path direction, and oil flow resistance is big, complex structure.

Three, summary of the invention:

The purpose of this utility model provides simple in structure, easy to operate a kind of novel ball-and-seat, it has overcome the shortcoming of other technology, the purpose of this utility model is to realize like this, it is to be formed by connecting by main body, valve seat, O type circle, steady nail, cleaning cap, copper packing, clean-up port, spool, spring, support and jump ring, two O type circles are installed on the valve seat, valve seat is installed in the main body, and by steady nail location; The spool conical surface cooperates with the valve seat inner conical surface under the effect of spring, and the other end of spool is installed in the support, and support, spool are installed in the main body, is located by jump ring; There are two clean-up ports of symmetry the main body both sides, and copper packing is installed on the clean-up port, and cleaning cap and clean-up port are sealed by copper packing by being threaded.

Operating principle: oil stream enters from the left side, and under the effect of fluid pressure, push away spool and move to right, the compression spring, the spool conical surface is lifted off a seat, thus liquid flows through; When liquid when the right side enters, spool is under the effect of spring and under the fluid pressure, spool tightly is attached on the valve seat, realize sealing, thereby liquid can not pass through ball-and-seat.When impurity such as the sand in the oil stream, wax deposit between spring and support, open and clear up cap up and down, with the clear water flushing, ball-and-seat need not be pulled down from flow process, easy and simple to handle.

Meaning of the present utility model: the one, integrated structure design, valve seat, spool are installed in the valve body, and be simple in structure; The 2nd, there is the clean-up port valve body both sides, need not pull down ball-and-seat during cleaning; The 3rd, the three-clove style support is arranged in the valve body, this support oil flow resistance is little, can guarantee that spool moves under higher axiality.

Four, description of drawings:

Fig. 1 is a kind of structural representation of novel ball-and-seat, among the figure 1, main body 2, valve seat 3, O type circle 4, surely follow closely 5, cleaning cap 6, copper packing 7, clean-up port 8, spool 9, spring 10, support 11, jump ring

Fig. 2 is the support schematic diagram, among the figure 1, main body 8, spool 10, support

Five, the specific embodiment:

In Fig. 1 and Fig. 2, two O type circles 3 are installed on the valve seat 2, valve seat 2 is installed in the main body, and by steady nail 4 location; Spool 8 conical surfaces cooperate with the valve seat inner conical surface under the effect of spring 9, and the other end of spool 8 is installed in the support 10, and support 10, spool 8 are installed in the main body 1 and by jump ring 11 location, support 10 is three lobe types, and such structure oil flow channel is big, and resistance is little; There are two clean-up ports 7 of symmetry main body 1 both sides, and copper packing 6 is installed on the clean-up port 7, and cleaning cap 5 is threaded with clean-up port 7, by copper packing 6 sealings.

Claims

1, a kind of novel ball-and-seat, it is to be formed by connecting by main body (1), valve seat (2), O type circle (3), steady nail (4), cleaning cap (5), copper packing (6), clean-up port (7), spool (8), spring (9), support (10) and jump ring (11), it is characterized in that: two O type circles (3) are installed on the valve seat (2), valve seat (2) is installed in the main body, and is located by steady nail (4).

2, a kind of novel ball-and-seat according to claim 1, it is characterized in that: spool (8) conical surface cooperates with the valve seat inner conical surface under the effect of spring (9), the other end of spool (8) is installed in the support (10), support (10), spool (8) are installed in the main body (1), by jump ring (11) location, support (10) is three lobe types.

3, a kind of novel ball-and-seat according to claim 1 is characterized in that: there are two clean-up ports (7) of symmetry main body (1) both sides, and copper packing (6) is installed on clean-up port (7), and cleaning cap (5) is threaded with clean-up port (7), is sealed by copper packing (6).