Summary of the invention
Technical problem to be solved by this invention provides a kind of multifunction multipath multi-control high-pressure needle valve, this valve is integrated in five needle type valves on the valve body, the controllable path of multichannel be can form, the discrete setting of many valves, loosely organized, problems such as installation is complicated, potential leakage point is many, cost height solved well.
The technology used in the present invention solution is: a kind of multifunction multipath multi-control high-pressure needle valve, comprise valve body, be connected with 5 needle type valves on the described valve body, described first needle type valve and second needle type valve are arranged on a side of valve body, the 3rd needle type valve and the 4th needle type valve are arranged on the opposite side of valve body, the 5th needle type valve is arranged on the front of valve body, also is provided with 6 attachment holes on the described valve body; Described first attachment hole and second attachment hole are arranged on the upside of valve body, and the 3rd attachment hole and the 4th attachment hole are arranged on the front of valve body, and the 5th attachment hole and the 6th attachment hole are arranged on the downside of valve body; Described first attachment hole is connected with a port of first needle type valve and second needle type valve respectively, and the another port of first needle type valve and second needle type valve is connected with the 3rd attachment hole with the 5th attachment hole respectively; Described second attachment hole is connected with a port of the 3rd needle type valve and the 4th needle type valve respectively, and the another port of the 3rd needle type valve and the 4th needle type valve is connected with the 6th attachment hole with the 4th attachment hole respectively; The two-port of described the 5th needle type valve is connected with the 6th attachment hole with the 5th attachment hole respectively.
Beneficial effect of the present invention: owing to five ingenious being integrated in one of needle type valve, form many branch lines, it is possessed respectively block and flow regulating function, compare with the needle type valve pipeline with the discrete setting of quantity, interface reduces 2/3rds.Fine solved that many valves independently are provided with loosely organized, complicated, difficult problems such as potential leakage point is many, cost height are installed, very convenient to sampling, pressure measurement, shunt configuration and blowdown, drainage.Have characteristics such as compact structure, leakage point quick and easy for installation, potential is few, the manufacturing maintenance cost is low.Be applicable to fields such as the pipeline of industries such as oil, chemical industry, electric power, metallurgy, food and instrument configuration.
The invention will be further described below in conjunction with the drawings and the specific embodiments.
Embodiment
As accompanying drawing 1,2 illustrated embodiments, multifunction multipath multi-control high-pressure needle valve of the present invention comprises valve body 1, is connected with five needle type valves on the valve body 1; First needle type valve 2 and second needle type valve 3 are arranged on the right side of valve body 1, and the 3rd needle type valve 4 and the 4th needle type valve 5 are arranged on the left side of valve body 1, and the 5th needle type valve 6 is arranged on valve body 1 front; Also be provided with 6 attachment hole I, II, III, IV, V, VI on the valve body 1, be connected with external pipe by attachment hole.The first attachment hole I and the second attachment hole II are arranged on the upside of valve body 1, and the 3rd attachment hole III and the 4th attachment hole IV are arranged on the front of valve body 1, and the 5th attachment hole V and threaded connection hole VI are arranged on the downside of valve body 1; The first attachment hole I is connected with the port of first needle type valve 2 with second needle type valve 3 respectively, and the another port of first needle type valve 2 and second needle type valve 3 is connected with the 3rd attachment hole III with the 5th attachment hole V respectively; The second attachment hole II is connected with the port of the 3rd needle type valve 4 with the 4th needle type valve 5 respectively, and the another port of the 3rd needle type valve 4 and the 4th needle type valve 5 is connected with the 6th attachment hole VI with the 4th attachment hole IV respectively; The two-port of the 5th needle type valve 6 is connected with the 6th attachment hole VI with the 5th attachment hole V respectively.In the present embodiment, five needle type valve structures are identical, and six attachment holes adopt the NPT threaded connection holes, the attachment hole that can certainly adopt the needle type valve of different model and other and needle type valve to mate.Above-mentioned five needle type valves and the position distribution of six attachment holes on valve body help valve body circuit design and processing.
The valve sets of said structure can be set five needle type valves and six connection mouths for the controllable branch line of a plurality of flows (path), to satisfy different use occasions as required.Below illustrated for example.
Example 1: the first attachment hole I and the second attachment hole II are set at the medium import, all the other the 3rd attachment hole III, the 4th attachment hole IV, the 5th attachment hole V and the 6th attachment hole VI are set at media outlet, promptly form the controllable valve group of four-way road flow.Form article one path from first attachment hole I to the second needle type valve, 3 to the 3rd attachment hole III; Form the second path from first attachment hole I to the first needle type valve, 2 to the 5th attachment hole V; 4 to the 4th attachment hole IV form the 3rd path from the second attachment hole II to the, three needle type valves; 5 to the 6th attachment hole VI form the 4th path from attachment hole II to the four needle type valves; The 5th needle type valve 6 is an equilibrium valve.
Example 2: the first attachment hole I is set at the medium import, all the other second attachment hole II, the 3rd attachment hole III, the 4th attachment hole IV, the 5th attachment hole V and the 6th attachment hole VI are set at media outlet, promptly form the controllable valve group of five-way road flow.Form article one path from first attachment hole I to the second needle type valve, 3 to the 3rd attachment hole III; Form the second path from first attachment hole I to the first needle type valve, 2 to the 5th attachment hole V; 6 to the 6th attachment hole VI form the 3rd path from first attachment hole I to the first needle type valve, 2 to the 5th needle type valves; 5 to second attachment hole II form the 4th path from first attachment hole I to the first needle type valve, 2 to the 5th needle type valves, 6 to the 4th needle type valves; 4 to the 4th attachment hole IV form the 5th path from first attachment hole I to the first needle type valve, 2 to the 5th needle type valves, 6 to the 4th needle type valves, 5 to the 3rd needle type valves.But at this moment first needle type valve 2, the 4th needle type valve 5, the 5th needle type valve 6 must often be opened, path could form, and have only the 3rd attachment hole (outlet) III, the 4th attachment hole (outlet) IV can be respectively by second needle value 3 and 6 controls of the 5th needle value, can regulate flow or block; And second attachment hole (outlet) II, the 4th attachment hole (outlet) IV, the 5th attachment hole (outlet) V, the 6th attachment hole (outlet) VI can only be the medium normal opens, be difficult to realize the Flow-rate adjustment of medium or block, can make pressure measurement, thermometric, drainage and sewage draining exit and use.
The structure of five needle type valves is identical, is example as Fig. 1 valve 5, comprising: valve body 1, valve gap 5.1, valve rod 5.2, filler 5.3, position limit pin 5.4, locking nut 5.5, Stem Mut 5.6, dust cover 5.7, handle 5.8, screw 5.9; Valve body 1 is threaded with valve gap 5.1; Valve rod 5.2 is threaded with Stem Mut 5.6 and places among the valve gap 5.1; Stem Mut 5.6 is threaded with valve gap 5.1; Be provided with filler 5.3 between valve gap 5.1 and the valve rod 5.2, and compress filler by Stem Mut 5.6; Locking nut 5.5 and Stem Mut 5.6 on valve gap 5.1, prevent that bonnet nut 5.6 is loosening by screw-threaded coupling; Dust cover 5.7 places bonnet nut 5.6 upper ends, prevents that dust from entering between valve rod and the Stem Mut; Handle 5.8 places valve rod 5.2 upper ends and is fixed on the valve rod 5.2 by screw 5.9, realizes the keying of needle type valve with actuate valve stem.
Needle type valve 5 is closed when by handle 5.8 rotary valve rods 5.2 right laterals the tapering of valve rod 5.2 and valve body 1 being compressed; Needle type valve 5 reached maximum opening, complete opening when counterrotating valve rod 5.2 made valve rod 5.2 left lateral extremely with Stem Mut 5.6 diebacks; Valve rod 5.2 close and complete opening between during diverse location needle type valve 5 parts open, can regulate flow.