CN201916591U - Film system pressure regulating valve noise reduction device - Google Patents

Abstract

The utility model discloses a film system pressure regulating valve noise reduction device, comprising a flange, a pipeline, a wafer type clamp and an orifice plate. The orifice plate is connected to the pipeline and is provided with one or a plurality of small holes. The upper end of the pipeline is connected to the pressure regulating valve through the flange, and the lower end is connected to a film system heat exchanger through the wafer type clamp. The noise deduction device can effectively reduce noise generated by the regulating valve and mechanical vibration during a film system running process, and prolong the service lifetime.

Description

Film system pressure modulating valve denoising device

Technical field

The utility model relates to a kind of denoising device of film system pressure modulating valve outlet, especially can effectively reduce modulating valve vibrations and noise.

Background technique

At present, the film system generally uses and regulates pressure and the flow that high pressure stop valve aperture is come the controlling diaphragm system, but when the differential pressure (Δ P=P1-P2) before and after the modulating valve increases to a certain numerical value, just can be owing to flash distillation, cavitation phenomenon occurring, and the sound level of stop valve noise is sharply risen, consequent noise, the health of not only harmful human body, more seriously to spool and (or) physical damage that guide surface was subjected to seriously shortens the working life of valve.

The model utility content

For the noise that reduces film system modulating valve and increase modulating valve working life, the utility model provides a kind of film system pressure modulating valve denoising device, this device can effectively reduce the noise generated and mechanical shock of modulating valve in the film system running, prolongs the equipment physical life.

The technological scheme that its technical problem that solves the utility model adopts is:

Film system pressure modulating valve denoising device, form by flange, pipeline, wafer type clip and orifice plate, orifice plate is connected in the pipeline, single or multiple apertures are set on the orifice plate, the upper end of pipeline links to each other with pressure regulator valve by flange, and the lower end of pipeline links to each other with the film system heat exchanger by the wafer type clip.

Described pipeline is a straight tube.

Described orifice plate is welded on the inside of pipeline, and the suitable for reading and pipeline of orifice plate is equal.

The outer wall welding of described flange and pipeline.

Described wafer type clip is made up of upper latch notch, following bayonet socket and clip, the lower end of pipeline and upper latch notch welding, and following bayonet socket links to each other with the film system heat exchanger, and clip is fixed together upper latch notch and following bayonet socket.

When the utility model used, film system extracting liquid pipeline linked to each other with modulating valve by the modulating valve flange, and modulating valve links to each other with the entrance point of this device by the flange of this device, and the outlet end of this device links to each other with the film system heat exchanger by the wafer type clip.

Like this, the utility model concentrates pipeline modulating valve valve export in the film system one section denoising device with holes is set.Wherein, the hole size on the orifice plate, number are decided on pressure drop before and after the film system modulating valve.Film system pressure in running is kept generally between 1MP-4.0MP.Adopt single orifice plate when pressure reduction is less than 2.5MP before and after the valve, when pressure reduction is to adopt porous slab greater than 2.5MP, the plate number is determined according to (P1-P2)/2.5*10 ⁶Round and calculate; Its pore size d ₀Be calculated as follows

In the formula: Q-fluid flow, m ³/ h;

Δ P-is by the pressure drop of orifice plate, MPa;

γ-fluid density, kg/m ³

C-gets 0.59 approximative value.

When calculating the porous orifice plate, press single hole orifice plate calculated hole diameters earlier, ask for the hole count of the porous orifice plate of selecting for use then by following formula.

$N=\frac{d_0^2}{{\mathrm{<figure-callout\; id="1"\; label="d"\; filenames="HSA00000337965100022.png"\; state="\{\{state\}\}">d</figure-callout>}}_1^2}$

In the formula: the hole count of N-porous orifice plate, individual;

d ₁The aperture of-porous orifice plate, mm; The aperture of porous orifice plate generally can be selected 12.5mm, 20mm, 25mm, 40mm for use.

The beneficial effects of the utility model are:

By this denoising device current limliting, increased throttle resistance, the recovery extent of pressure fallen little, the pressure drop that is assigned on the valve is reduced, has increased control valve opening, cavitation erosion, erosion are fallen a little less than, reduce the impact force of concentration of energy on breakdown point all when bubble breaks in the cavitation process simultaneously, fall and lacked the valve vibrations, prolonged working life, have advantages such as simple in structure, easy for installation.

Below in conjunction with drawings and Examples the utility model is further specified.

Description of drawings

Fig. 1 is a three-dimensional exploded view of the present utility model;

Fig. 2 is a schematic perspective view of the present utility model;

Fig. 3 is a side view of the present utility model.

Label declaration

Flange 1 pipeline 2

Orifice plate 3 upper latch notches 4

Following bayonet socket 5 clips 6

Pressure regulator valve 7 flanges 8

Seal ring 9 seal rings 10

Embodiment

See also Fig. 1 to shown in Figure 3, the film system pressure modulating valve denoising device that the utility model disclosed is installed between pressure regulator valve 7 outlets and heat exchanger (not shown) of film system, is made up of flange 1, pipeline 2, wafer type clip and orifice plate 3.

Orifice plate 3 is connected in the pipeline 2, and single or multiple apertures are set on the orifice plate 3, and hole size, number are decided on pressure drop before and after the film system modulating valve.Orifice plate 3 specifically is the inside that is welded on pipeline 2 by argon arc welding, and the suitable for reading and pipeline 2 of orifice plate 3 is equal.

The upper end of pipeline 2 links to each other with pressure regulator valve 7 by flange 1, and this embodiment's pipeline 2 is specially straight tube, and flange 1 welds by argon arc welding with the outer wall of pipeline 2.The lower end of pipeline 2 links to each other with the film system heat exchanger by the wafer type clip.The wafer type clip specifically is made up of upper latch notch 4, following bayonet socket 5 and clip 6, and the lower end of pipeline 2 and upper latch notch 4 are by the argon arc welding welding, and following bayonet socket 5 links to each other with the film system heat exchanger, and clip 6 is fixed together upper latch notch 4 and following bayonet socket 5.

During use, film system extracting liquid pipeline links to each other with pressure regulator valve 7 with seal ring 9 by flange 8, pressure regulator valve 7 links to each other with the device entrance point with seal ring 10 by flange 1, the outlet end of device cooperates with following bayonet socket 5 by clip 6, upper latch notch 4 and links to each other with heat exchanger, increase throttle resistance by orifice plate 3, reduce the noise generated and mechanical shock of modulating valve in the film system running, prolong the equipment physical life.

It below only is preferred embodiment of the present utility model; be not qualification, in the ken that those of ordinary skills possessed, based on the key points in design of this case to its practical range; the many variations that its concrete example is made, but all should fall in the protection domain of this case.

Claims (5)

1. film system pressure modulating valve denoising device, it is characterized in that: form by flange, pipeline, wafer type clip and orifice plate, orifice plate is connected in the pipeline, single or multiple apertures are set on the orifice plate, the upper end of pipeline links to each other with pressure regulator valve by flange, and the lower end of pipeline links to each other with the film system heat exchanger by the wafer type clip.

2. film system pressure modulating valve denoising device as claimed in claim 1, it is characterized in that: pipeline is a straight tube.

3. film system pressure modulating valve denoising device as claimed in claim 1, it is characterized in that: orifice plate is welded on the inside of pipeline, and the suitable for reading and pipeline of orifice plate is equal.

4. film system pressure modulating valve denoising device as claimed in claim 1 is characterized in that: the outer wall welding of flange and pipeline.

5. film system pressure modulating valve denoising device as claimed in claim 1, it is characterized in that: the wafer type clip is made up of upper latch notch, following bayonet socket and clip, the lower end of pipeline and upper latch notch welding, following bayonet socket links to each other with the film system heat exchanger, and clip is fixed together upper latch notch and following bayonet socket.

Images