CN106015631A

CN106015631A - Drop height stop valve for pharmaceutical production

Info

Publication number: CN106015631A
Application number: CN201610592313.XA
Authority: CN
Inventors: 王祥; 赵军
Original assignee: Anhui Globe Pharmaceutical Co Ltd
Current assignee: Anhui Globe Pharmaceutical Co Ltd
Priority date: 2016-07-25
Filing date: 2016-07-25
Publication date: 2016-10-12

Abstract

The invention provides a drop height stop valve for pharmaceutical production. The drop height stop valve comprises a valve seat, a valve deck, a valve rod and a sealing membrane, a chamber with an upper end opening is arranged in the valve seat, the bottom wall of the chamber extends towards the upper end opening to form a blocking block, the valve seat is provided with an inlet pipe and an outlet pipe in an extending mode, and a conveying channel for a medium to pass through is formed from the initial end of the inlet pipe, the inlet pipe, the chamber, the outlet pipe to the tail end of the outlet pipe of the valve seat. The valve deck is fixed to the upper end opening of the chamber, the sealing membrane is arranged between the valve deck and the valve seat, and the valve rod penetrates through the interior of the valve deck from top to bottom. The valve rod drives the sealing membrane to be in contact fit with the blocking block of the valve seat, the width of the upper portion of the blocking block of the valve seat is smaller than that of the bottom of the blocking block, and the side wall of the blocking block is a smooth inclined wall. When a pipeline needs to be emptied after production, the medium remaining in the conveying channel can flow under the action of self-gravity, the remaining medium flows through the inlet pipe and then flows to the outlet pipe along the side wall of the blocking block, and thus it is avoided that the medium remains in the stop valve.

Description

Drop stop valve for pharmaceutical production

Technical field

The present invention relates to a kind of drop stop valve for pharmaceutical production.

Background technology

Require cleaning in pharmaceutical production process pipeline, after production, tube emptying is prevented drug residue In pipeline, but the pipe arrangement horizontal or vertical layout of many employings of medicine machining production line, wherein pass through Difference in height is not had so that need emptying at medicine machining production line between two horizontal pipes that valve connects Time, can cause a small amount of liquid residue in valve, affect the quality of following process medicine.

Summary of the invention

The technical problem to be solved be to provide a kind of simple in construction, prevent residual for medicine The drop stop valve produced.

For solving above-mentioned technical problem, the invention provides a kind of drop stop valve for pharmaceutical production, Including valve seat, valve gap, valve rod, seal membrane, in valve seat, it is provided with the chamber of upper end open, cavity bottom Cavity wall is extended with intercepting block to upper end open direction, valve seat each extend over the inlet tube communicated with chamber and Outlet, inlet tube and outlet are respectively at intercepting block both sides, from the inlet tube top of valve seat, import The end of pipe, chamber, outlet and outlet is constituted for medium through transfer passage；

Valve gap is fixed at the upper end open of chamber, and seal membrane arranges between valve gap and valve seat, and valve rod is certainly Upper and under run through valve gap in and threaded engagement between valve rod and valve gap；

Valve rod drives seal membrane to contact cooperation with the intercepting block of valve seat, the obstruct of chamber becomes two solely Vertical cavity；

The width on the intercepting block top of valve seat is less than the width of bottom, and the sidewall of intercepting block is one section of smooth ramp Wall；

Valve seat tilts to install, and the horizontal level of the inlet tube of valve seat, higher than the horizontal level of outlet, makes valve The angle of inclination is had between transfer passage and horizontal plane in Zuo.

After using such structure, when after producing will by tube emptying time, open this for pharmaceutical production Drop stop valve, owing to there being the angle of inclination between the transfer passage in valve seat and horizontal plane, conveying is logical In road, the medium of residual can flow under self gravitation effect, and the medium of residual firstly flows through inlet tube, then Sidewall along intercepting block flow to outlet, and then flows out outside valve seat, it is to avoid medium is raw for medicine at this Residual in the drop stop valve produced.

In order to be better understood from the technology contents of the present invention, below the drop being originally used for pharmaceutical production is ended Valve is referred to as this stop valve.

There is bending at the inlet tube top of the valve seat of this stop valve, and the outlet end of valve seat also has bending；Adopt After such structure, this stop valve is pre-not only by the bending at inlet tube top, outlet end First set the angle of inclination between transfer passage and horizontal plane, and make the company of this stop valve and external pipe Connect more convenient, it is to avoid for reaching installation requirement bending external pipe.

The valve rod upper end of this stop valve is stretched out outside valve gap, and valve rod upper end is fixedly connected with handwheel；Use After such structure, it is simple to the use of this stop valve.

The valve rod lower end of this stop valve is fixed with contact block, fixing between contact block and seal membrane；Use After such structure, contact block can increase the contact area between seal membrane, improves sealing effectiveness, And fixing between contact block and seal membrane, can be with the resilience of forced seal diaphragm, it is to avoid blocking conveying Passage.

Accompanying drawing explanation

Fig. 1 is the structural representation of this stop valve embodiment.

Fig. 2 is the axonometric chart of this stop valve embodiment.

Fig. 3 is the use state sectional view of this stop valve embodiment.

Detailed description of the invention

As shown in Figures 1 to 3

This stop valve includes valve seat 1, valve gap 2, valve rod 4, seal membrane 3.

Being provided with the chamber 11 of upper end open in valve seat 1, chamber 11 bottom chamber wall extends to upper end open direction There is intercepting block 12, and intercepting block 12 extends to the front and rear sides cavity wall of chamber 11, by chamber 11 points Being divided into left and right two cavitys, intercepting block 12 upper surface is distance with chamber 11 upper end open, The upper surface width of intercepting block 12 is less than the width bottom intercepting block 12, and the sidewall of intercepting block 12 is one section Smooth skew wall；

Valve seat 1 arranged on left and right sides each extends over the inlet tube 13 and outlet 14 communicated with chamber 11, Inlet tube 13 and outlet 14 are respectively at intercepting block 12 both sides, and inlet tube 13 top is to valve seat 1 time Side is to there being 45 ° of bendings, and there are 45 ° of bendings, import in the end of outlet 14 direction on the upside of valve seat 1 Pipe 13 top is the bending angle in direction and end side on valve seat 1 of outlet 14 on the downside of valve seat 1 To bending angle identical, from inlet tube 13 top of valve seat 1, inlet tube 13, chamber 11, outlet The end of pipe 14 and outlet 14 is constituted for medium through transfer passage.

Between bottom the sidewall of intercepting block 12 and valve seat 1, institute's angle degree begins less than or equal to inlet tube 13 End bending angle in direction on the downside of valve seat 1.

Valve gap 2 is located at the upper end open of chamber 11, and valve gap 2 is bolted on valve seat 1, close Sealer sheet 3 arranges between valve gap 2 and valve seat 1, and seal membrane 3 is completely covered on valve seat 1 upper end open, Seal membrane 3 upper surface is provided with positive stop lug boss, and valve gap 2 has the screwed hole running through its upper and lower end face, Valve rod 4 runs through the screwed hole of valve gap 2 from top to bottom, is provided with and coordinates with valve gap 2 screwed hole in the middle part of valve rod 4 Screw thread, valve rod 4 upper end is stretched out outside valve gap 2, and valve rod 4 upper end is fixed with handwheel 5, and valve rod 4 lower end sets Have contact block 6, contact block 6 top to have a draw-in groove 61 coordinated with valve rod 4 lower end, valve rod 4 lower end with The draw-in groove 61 of contact block 6 coordinates fixing, and the positive stop lug boss that contact block 6 lower end has with seal membrane 3 is joined The limited impression closed, the positive stop lug boss of seal membrane 3 is filled in the limited impression of contact block 6, is made contact It is connected between block 6 with seal membrane 3.

This stop valve install time, the top of inlet tube 13 and the end of the port of export respectively with medicine processing Two horizontal pipes 7 of line are connected, and inlet tube 13 top is connected fixing with the horizontal pipe 7 of side, by Have 45 ° of bendings in direction on the downside of valve seat 1, inlet tube 13 top, thus the setting angle of this stop valve with Horizontal plane is to have 45 ° of inclination angles between transfer passage and the horizontal plane in 45 ° of angles, i.e. valve seat 1, but because of There are 45 ° of bendings in the end of outlet 14 direction on the upside of valve seat 1, then make outlet 14 end can be with Opposite side horizontal pipe 7 is connected, and the horizontal level of inlet tube 13 is higher than the horizontal level of outlet 14, Although the horizontal pipe 7 of this stop valve both sides is the most also to maintain level, but requires that both are arranging During pipeline 7 poor with regard to preset height.

Rotating handwheel 5, the relative valve gap 2 of valve rod 4 moves up, and seal membrane 3 separates with intercepting block 12, The medium flowing into transfer passage can flow along the gap between seal membrane 3 and intercepting block 12.

When needing that this stop valve is sent out unlatching, rotating backward handwheel 5, the relative valve gap 2 of valve rod 4 moves down, Seal membrane 3 progressively contacts with intercepting block 12, until seal membrane 3 is resisted against on intercepting block 12 completely End, makes chamber 11 be separated into left and right two separate cavitys.

When to be emptied by pipeline 7 after producing, open this stop valve, due to the established angle of this stop valve Degree is horizontal by 45 °, and in this stop valve, the medium of residual can flow under self gravitation effect, residual Medium firstly flow through inlet tube 13, then the sidewall along intercepting block 12 flow to outlet 14, Jin Erliu Go out outside this stop valve, it is to avoid medium remains in this stop valve.

Above-described is only one embodiment of the present invention, it is noted that common for this area For technical staff, under the premise without departing from the principles of the invention, it is also possible to make some modification and improvement, These also should be regarded as belonging to protection scope of the present invention.

Claims

1. for a drop stop valve for pharmaceutical production, including valve seat, valve gap, valve rod, seal membrane, valve Being provided with the chamber of upper end open in Zuo, cavity bottom cavity wall is extended with intercepting block, valve to upper end open direction Seat each extends over the inlet tube and outlet communicated with chamber, and inlet tube and outlet are respectively at and block Block both sides, are constituted from the end of inlet tube top, inlet tube, chamber, outlet and the outlet of valve seat For medium through transfer passage；

Valve rod drives seal membrane to contact cooperation with the intercepting block of valve seat, the obstruct of chamber becomes two solely Vertical cavity, is characterized in that:

Drop stop valve for pharmaceutical production the most according to claim 1, is characterized in that:

There is bending in direction on the downside of valve seat, inlet tube top of described valve seat, the end of the outlet of valve seat On the upside of valve seat, also there are bending, the bending angle in direction on the downside of valve seat, inlet tube top and outlet in direction End bending angle in direction on the upside of valve seat identical.

Described valve rod upper end is stretched out outside valve gap, and valve rod upper end is fixedly connected with handwheel.

Described valve rod lower end is fixed with contact block, fixing between contact block and seal membrane.