CN205048047U

CN205048047U - But lateral conduit connection structure of noise reduction

Info

Publication number: CN205048047U
Application number: CN201520822022.6U
Authority: CN
Inventors: 王子琛
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-10-22
Filing date: 2015-10-22
Publication date: 2016-02-24
Anticipated expiration: 2025-10-22

Abstract

The utility model provides a but lateral conduit connection structure of noise reduction, it includes be responsible for (1), branch pipe (2), branch pipe (2) on be connected with valve (3), branch pipe (2) cut straightly the person in charge (1) in, branch pipe (2) and be responsible for (1) through the connection of welding mode, the person in charge (1) go up to open and to have two at least aperture (6) or one slot hole (12), at least two aperture (6) or one the flow area of slot hole (12) is not less than the flow area of valve (3) throat. The utility model overcomes current lateral conduit connection structure easily produces noise and energy loss's shortcoming. But have energy saving and consumption reduction, reduce the fluid and in the vortex of cecum branch pipe trompil department and the effect of disturbance, reduction pipe flow noise and energy consumption, be applicable to relief valve emission and urban water supply pipe -line system that the main steam pipe of steam power plant said.

Description

A kind of lateral linkage structure reducing noise

Technical field

The utility model relates to the linkage structure of a kind of pipeline master, arm, refers to a kind of lateral linkage structure that can reduce noise for places such as safety valve inlet stub particularly.

Background technique

At industrial field, comprise in the tree-shaped pipe-line system such as thermoelectricity plant, urban pipe network, Placement that is main, arm is generally and directly on supervisor, is welded to connect (as shown in Fig. 1-1, Fig. 1-2) or threeway connection (as shown in Figure 2) after perforate.

When piping arranges Shuttoff Valve in arm bifurcation and is in closed condition, the flowing medium that piping inside is transported only is walked supervisor and does not walk arm.Now arm near supervisor valve leading portion form one section of cecum, although with supervisor UNICOM, cannot flowing medium be passed through.Due to this blind section with supervisor space by threeway or be responsible for perforate and be communicated with, fluid runs into " trap " along smooth supervisor's tube wall at tapping and produces violent disturbance formation eddy current (as shown in Figure 3), and the disturbance of eddy current can bring the vibration & noise of pipeline.

City Building feedwater, fire water pipeline often can hear the noise even howling of fluid near the arm valve of closing, and bring noise pollution to the living environment of people; Horizontal pipe near thermal power plant boiler steam header is equipped with more bigbore safety valve, ducted high-temperature steam flow velocity is higher, forms larger noise, produce more serious noise pollution and lose certain energy consumption at safety valve valve pipe place.

Therefore, improve for existing pipeline branch pipe linkage structure, become a urgent and important job.

Summary of the invention

The purpose of this utility model is exactly the deficiency that will solve above-mentioned background technology, and a kind of lateral linkage structure reducing noise is provided, it is not changing pipeline layout, is not increasing on the basis of pipeline, tube material and reduce above-mentioned arm place noise and energy consumption.

Noise reduction thinking of the present utility model is: reduce the disturbance of convection cell, reduce eddy current, or change excited frequency, avoid the frequency range of people's ear sensitivity.

The purpose of this utility model is reached by following measure: the lateral linkage structure that can reduce noise, it comprises supervisor, arm, described arm is connected with valve, described arm straight cutting enters in supervisor, arm is connected by welding manner with supervisor, and it is characterized in that: described supervisor has at least two apertures or an elongated hole, the circulation area of at least two described apertures or a described elongated hole is not less than the circulation area of valve throat.

A kind of lateral linkage structure reducing noise, it comprises supervisor, arm, described supervisor is connected by threeway with between arm, described arm is connected with valve, it is characterized in that: have the steel plate being positioned at described three-limb tube inside in described steel plate, having at least two apertures or an elongated hole, the circulation area of at least two described apertures or a described elongated hole be not less than valve throat circulation area.

In technique scheme, the edge of described aperture or elongated hole is no more than arm inside diameter ranges.

In technique scheme, the aperture described in two is arranged symmetrically with along the axial direction of supervisor.

The utility model lateral linkage structure, have energy-saving and cost-reducing, reduce the effect of fluid in the eddy current of cecum arm tapping and disturbance, reduction Flows noise and energy consumption, be applicable to safety valve discharge and the city supply water pipeline system of thermoelectricity plant's main steam line.

Accompanying drawing explanation

Fig. 1-1 is the schematic diagram of direct insertion pipeline branch pipe linkage structure in background technique;

Fig. 1-2 is the structural representation of the upper perforate of supervisor in Fig. 1-1;

Fig. 2 is the schematic diagram that in background technique, three-way pipeline props up pipe connecting structure;

Fig. 3 is the schematic diagram that in background technique, pipeline branch pipe place fluid produces eddy current;

Fig. 4-1 is the organigram (threeway connection) of the utility model embodiment 1;

Fig. 4-2 is the organigram in Fig. 4-1, supervisor opening aperture;

Fig. 4-3 is the organigram in Fig. 4-1, supervisor opening elongated hole;

Fig. 5 is the organigram (direct insertion connection) of the utility model embodiment 2;

Fig. 6 is the organigram that the utility model embodiment flow field is improved.

1. supervisors in figure, 2. arm, 3. valve, 4. threeway, 5. steel plate, 6. aperture, 71. direct insertion connections, 72. threeways connect, and 8. weld, 9. macropore, 10. eddy current, 11. blind pipes, 12. elongated holes.Direction in figure shown in arrow is the direction of fluid flowing.

Embodiment

Below in conjunction with drawings and Examples, the utility model is described in further detail, but they do not form restriction of the present utility model, only for example, simultaneously by illustrating that advantage of the present utility model will become clearly and easy understand.

Accompanying drawings is known: a kind of lateral linkage structure reducing noise, it comprises supervisor 1, arm 2, described arm 2 is connected with valve 3, described arm 2 straight cutting enters in supervisor 1, and arm 2 is connected by welding manner with supervisor 1, described supervisor 1 has at least two apertures 6 or an elongated hole 12, the circulation area of at least two described apertures 6 or a described elongated hole 12 be not less than valve 3 throat circulation area (as shown in Figure 5, embodiment 2).

A kind of lateral linkage structure reducing noise, it comprises supervisor 1, arm 2, described supervisor 1 is connected by threeway 4 with between arm 2, and described arm 2 is connected with valve 3, there is the steel plate 5 being positioned at described threeway 4 connecting tube inside, have at least two apertures 6 or an elongated hole 12 in described steel plate 5, the circulation area of at least two described apertures 6 or a described elongated hole 12 be not less than valve 3 throat circulation area (as Fig. 4-Isosorbide-5-Nitrae-2, shown in 4-3, embodiment 1).

The edge of described aperture 6 or elongated hole 12 is no more than arm 2 inside diameter ranges.

Aperture 6 described in two is arranged symmetrically with along the axial direction of supervisor.

This enforcement new application in the safety valve pipeline system of the main steam line of thermoelectricity plant's High Temperature High Pressure, employing be threeway Connecting format.

With reference to figure 4-1,4-2,4-3, a kind of Piping Safety Valves for high temperature and high pressure steam of the present embodiment props up pipe connecting structure, it comprise connecting branch threeway 4, be welded on threeway 4 arm 2 inside, the circular steel plate 5 that has aperture 6.

Wherein threeway 4 is the inlet pipe of existing conventional hot-press threeway, its arm 2 connection safety valve, and during normal operation, safety valve is in closed condition for a long time, and main steam forms eddy current and disturbance at arm 2 place, makes a noise and vibrates (as shown in Figure 3).Structure after improvement, by the circular steel plate 5 of arm 2 root weld, steam " trap " (as shown in Figure 6) is herein fallen in shutoff, reduces the eddy current of steam at arm 2 place, thus reduces the flow resistance of steam at arm 2 place and noise.Through-flow demand when aperture 6 simultaneously on steel plate 5 ensure that safety valve jumping up.Simultaneously the steel plate 5 also reinforcement intensity of supervisor 1 at tapping, makes the intensity at arm 2 place be enhanced.

It is inner that circular steel plate 5 is in an embodiment welded on threeway 4, near arm root, steel plate 5 opened two apertures, 6, two apertures 6 along supervisor 1 axially-aligned, or the formation elongated hole 12 that is connected by two apertures 6.

The above is only preferred embodiment of the present utility model, not does any pro forma restriction to structure of the present utility model.Every above embodiment is done according to technical spirit of the present utility model any simple modification, equivalent variations and modification, all still belong in the scope of the technical solution of the utility model.

Claims

1. one kind can be reduced the lateral linkage structure of noise, it comprises supervisor (1), arm (2), described arm (2) is connected with valve (3), described arm (2) straight cutting enters in supervisor (1), arm (2) is connected by welding manner with supervisor (1), it is characterized in that: described supervisor (1) has at least two apertures (6) or an elongated hole (12), the circulation area of at least two described apertures (6) or a described elongated hole (12) be not less than valve (3) throat circulation area.

2. one kind can be reduced the lateral linkage structure of noise, it comprises supervisor (1), arm (2), described supervisor (1) is connected by threeway (4) with between arm (2), described arm (2) is connected with valve (3), it is characterized in that: have the steel plate (5) being positioned at described threeway (4) connecting tube inside, at least two apertures (6) or an elongated hole (12) is had in described steel plate (5), the circulation area of at least two described apertures (6) or a described elongated hole (12) be not less than valve (3) throat circulation area.

3. a kind of lateral linkage structure reducing noise according to claim 1 and 2, is characterized in that: the edge of described aperture (6) or elongated hole (12) is no more than arm (2) inside diameter ranges.

4. a kind of lateral linkage structure reducing noise according to claim 1 and 2, is characterized in that: the aperture (6) described in two is arranged symmetrically with along the axial direction of supervisor.