CN203627936U - Novel check valve - Google Patents

Abstract

The utility model discloses a novel check valve, and relates to the technical field of machinery equipment. The inner front end of the check valve is provided with a valve core, a shell is arranged outside the rear end of the valve core, a gasket is arranged between the shell and the valve core, a baffle ring is arranged at the rear end of the valve core, and a retainer ring for a hole is arranged at the rear side of the baffle ring. According to the check valve, the drawbacks of the prior art can be overcome, the structural design is reasonable, the gasket is adopted to seal, and the sealing performance is good; furthermore, the shell and the valve core are made from a monel 400 alloy material, so that the shell and the valve core are firmer and more durable.

Description

A kind of single flow valve

Technical field:

The utility model relates to a kind of single flow valve, belongs to mechanical equipment technical field.

Background technique:

As everyone knows, centrifugal pump is 1 o'clock in discharge capacity, that is to say the most easily starting in the time of closed shutter, can know from the characteristic of submersible electric pump, be zero in discharge capacity, when pressure is maximum, the power minimum that pump consumes, but, when closing gate on the ground, can not make oil-immersed pump easily start, but there is on the contrary certain danger, because when underground liquid plane rises, rock gas in oil pipe and air will be compressed, and under pressurized gas operated valve, more dangerous than operated valve under highly pressurised liquid, for submersible electric pump is easily started, and avoid occurring above-mentioned shortcoming, on the pump discharge of submersible electric pump tubing string, one-way valve is installed, like this, in the situation that submersible electric pump is shut down, in oil pipe, be full of the back pressure that well liquid causes, only be equivalent in high-lift lower startup, thereby easily start, and consumed power is low, secondly, after one-way valve is installed, can also avoid well liquid after shutting down to flow backwards, pump is reversed, so that cause dropout accident.But existing one-way valve poor sealing performance, easily causes leakage.

Model utility content

For the problems referred to above, the technical problems to be solved in the utility model is to provide a kind of single flow valve.

One-way valve of the present utility model, it comprises single current valve body, back-up ring, baffle ring, housing, pad and spool for hole, the interior forward end of single current valve body is provided with spool, the rear end arranged outside of spool has housing, and between housing and spool, pad is installed, the rear end of spool is provided with baffle ring, and baffle ring rear side arranges the porose back-up ring of using.

As preferably, described baffle ring is that nickel cast iron material is made.

As preferably, described pad is that nitrile rubber is made.

As preferably, described housing and spool are that Monel 400 alloy materials are made.

The beneficial effects of the utility model: it can overcome the drawback of prior art, reasonable in design, adopts pad to seal, good seal performance, and housing and spool are for adopting Monel 400 alloy materials to make, and more durable.

Brief description of the drawings:

For ease of explanation, the utility model is described in detail by following concrete enforcement and accompanying drawing.

Fig. 1 is the utility model structural representation.

1-single current valve body; 2-hole back-up ring; 3-baffle ring; 4-housing; 5-pad; 6-spool.

Embodiment:

As shown in Figure 1, this embodiment is by the following technical solutions: it comprises single current valve body 1, back-up ring 2, baffle ring 3, housing 4, pad 5 and spool 6 for hole, the interior forward end of single current valve body 1 is provided with spool 6, the rear end arranged outside of spool 6 has housing 4, and between housing 4 and spool 6, pad 5 is installed, the rear end of spool 6 is provided with baffle ring 3, and baffle ring 3 rear sides arrange porose with back-up ring 2.

Wherein, described baffle ring 3 is made for nickel cast iron material; Described pad 5 is made for nitrile rubber; Described housing 4 and spool 6 are made for Monel 400 alloy materials.

More than show and described basic principle of the present utility model and major character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and specification, describes just illustrates principle of the present utility model; do not departing under the prerequisite of the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.

Claims (4)

1. a single flow valve, it is characterized in that: it comprises single current valve body (1), back-up ring (2), baffle ring (3), housing (4), pad (5) and spool (6) for hole, the interior forward end of single current valve body (1) is provided with spool (6), the rear end arranged outside of spool (6) has housing (4), and between housing (4) and spool (6), pad (5) is installed, the rear end of spool (6) is provided with baffle ring (3), and baffle ring (3) rear side arranges porose with back-up ring (2).

2. a kind of single flow valve according to claim 1, is characterized in that: described baffle ring (3) is made for nickel cast iron material.

3. a kind of single flow valve according to claim 1, is characterized in that: described pad (5) is made for nitrile rubber.

4. a kind of single flow valve according to claim 1, is characterized in that: described housing (4) and spool (6) are made for Monel 400 alloy materials.

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