CN208185477U - A kind of pneumatic bottom open type baiting valve of controllable valve opening - Google Patents

A kind of pneumatic bottom open type baiting valve of controllable valve opening Download PDF

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Publication number
CN208185477U
CN208185477U CN201820417813.4U CN201820417813U CN208185477U CN 208185477 U CN208185477 U CN 208185477U CN 201820417813 U CN201820417813 U CN 201820417813U CN 208185477 U CN208185477 U CN 208185477U
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CN
China
Prior art keywords
valve
stem guiding
flange
sealing ring
tube socket
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Active
Application number
CN201820417813.4U
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Chinese (zh)
Inventor
孙文钦
姜子龙
董丹
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Wenzhou Feng Science And Technology Ltd
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Wenzhou Feng Science And Technology Ltd
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Priority to CN201820417813.4U priority Critical patent/CN208185477U/en
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Publication of CN208185477U publication Critical patent/CN208185477U/en
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Abstract

The utility model discloses a kind of pneumatic bottom open type baiting valves of controllable valve opening, including valve body, the valve body includes charging flange, discharging elbow and stem guiding tube socket, stem guiding set is provided in the inner cavity of the stem guiding tube socket, valve rod is provided in the stem guiding set, the bottom end of the valve rod is connected with single-acting spring reset cylinder, and the upper end of the spring of the single-acting spring reset cylinder is provided with piston, and lower end is provided with sensor at pressure;The utility model is provided with pressure sensor, according to the initial pressure that the coefficient of elasticity of spring, the valve opening of needs and pressure sensor detect in single-acting spring reset cylinder, the size for the pressure value that pressure sensor detects when reaching the aperture of valve requirement can be calculated, when reaching this pressure value, control stops inflating into spring reset cylinder and locked air inlet pipeline prevents gas leakage, the aperture of valve is maintained, in this way, the control to valve opening can be realized.

Description

A kind of pneumatic bottom open type baiting valve of controllable valve opening
Technical field
The utility model relates to valve field, specifically a kind of controllable pneumatic bottom open type baiting valve of blowing.
Background technique
In fields such as chemical industry, food, pharmacy, metallurgy, various reaction kettles are designed with the baiting valve for discharge, in order to adapt to Automated production, existing baiting valve are mostly usually to replace handwheel to drive valve with cylinder using baiting valve is automatically controlled Bar movement carries out blowing, but such blowing mode is unable to the aperture of control valve, and dispensing speed is unable to control.
Utility model content
The purpose of this utility model is to provide a kind of pneumatic bottom open type baiting valves of controllable valve opening, existing to solve There is the problem of pneumatic bottom open type baiting valve is unable to control valve aperture.
To achieve the above object, the utility model provides the following technical solutions: a kind of controllable valve opening it is pneumatic under Exhibition formula baiting valve, including valve body, the valve body include charging flange, discharging elbow and stem guiding tube socket, the discharging elbow One end be connected to charging flange lower end surface on, stem guiding tube socket is connected in the lower wall of the discharging elbow, it is described For stem guiding tube socket perpendicular to charging flange setting, the top of the stem guiding tube socket is tubular structure, and lower part is flange knot The inner cavity of tubular structure of structure, the stem guiding tube socket is communicated with the inner cavity of discharging elbow, the bottom of the stem guiding tube socket Portion is connected with single-acting spring reset cylinder, and stem guiding set, the valve rod are provided in the inner cavity of the stem guiding tube socket Valve rod is provided in guide sleeve, the top of the valve rod is provided with flap, the bottom end of the valve rod and single-acting spring reset gas Cylinder is connected, and the upper end of the spring of the single-acting spring reset cylinder is provided with piston, and lower end is provided with sensor at pressure, institute It states and is provided with control box on spring reset cylinder outer wall, control element, control route and control pipe are provided in the control box Road, sensor is connected with control box at the pressure.
Preferably, the upper end of the flap is provided with annular groove, and third sealing ring is provided in annular groove, the charging The upper end of flange is provided with sealing flange, and the feed inlet and third sealing ring of the sealing flange cooperatively form sealing structure.
Preferably, seal washer is provided between charging flange and the sealing flange.
Preferably, the first sealing ring mounting groove, the first sealing ring peace are provided on the inner wall of the stem guiding set It is provided with the first sealing ring in tankage, is provided with the second sealing ring mounting groove on the outer wall of the stem guiding set, described second The second sealing ring is provided in sealing ring mounting groove.
Preferably, the material selection polytetrafluoroethylene (PTFE) of the stem guiding set.
Compared with prior art, the utility model has the beneficial effects that pressure sensor is provided with, according to single-acting spring The initial pressure that the coefficient of elasticity of spring, the valve opening of needs and pressure sensor detect in reset cylinder, can calculate The size for the pressure value that pressure sensor detects when reaching the aperture of valve requirement out, when reaching this pressure value, control stops It is only inflated into spring reset cylinder and locked air inlet pipeline prevents gas leakage, maintain the aperture of valve, in this way, can be realized pair The control of valve opening.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
In figure: 1- sealing flange, 2- flap, 3- valve body, 31- feed flange, 32- discharging elbow, 33- stem guiding pipe Seat, 4- stem guiding set, the first sealing ring of 5-, the second sealing ring of 6-, 7- valve rod, 8- single-acting spring reset cylinder, 9- are living Plug, 10- spring, 11- pressure sensor, 12- control box, 13- third sealing ring, 14- seal washer.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.
Referring to Fig. 1, in the utility model embodiment, a kind of pneumatic bottom open type baiting valve of controllable valve opening, packet Include valve body 3, which is characterized in that valve body 3 includes charging flange 31, discharging elbow 32 and stem guiding tube socket 33, discharging elbow 32 One end be connected to charging flange 31 lower end surface on, stem guiding tube socket 33, valve are connected in the lower wall of discharging elbow 32 Bar is oriented to tube socket 33 and is arranged perpendicular to charging flange 31, and the top of stem guiding tube socket 33 is tubular structure, and lower part is flange knot The inner cavity of structure, the tubular structure of stem guiding tube socket 33 is communicated with the inner cavity of discharging elbow 32, the bottom of stem guiding tube socket 33 It is connected with single-acting spring reset cylinder 8, stem guiding set 4, stem guiding set 4 are provided in the inner cavity of stem guiding tube socket 33 In be provided with valve rod 7, the top of valve rod 7 is provided with flap 2, and the bottom end of valve rod 7 is connected with single-acting spring reset cylinder 8, single The upper end for acting on the spring 10 of spring reset cylinder 8 is provided with piston 9, and lower end is provided with sensor 11 at pressure, spring reset It is provided with control box 12 on 8 outer wall of cylinder, controls and is provided with control element, control route and control piper in box 12, at pressure Sensor 11 is connected with control box 12, and the pressure signal transmission that sensor 11 will test at pressure gives control box 12;Flap 2 Upper end be provided with annular groove, and third sealing ring 13 is provided in annular groove, the upper end of charging flange 31 is provided with Sealing Method Orchid 1, the feed inlet and third sealing ring 13 of sealing flange 1 cooperatively form sealing structure;It feeds between flange 31 and sealing flange 1 It is provided with seal washer 14, when preventing blowing, feeds the junction material leakage of flange 31 and sealing flange 1;Stem guiding set 4 It is provided with the first sealing ring mounting groove on inner wall, the first sealing ring 5, stem guiding set 4 are provided in the first sealing ring mounting groove Outer wall on be provided with the second sealing ring mounting groove, the second sealing ring 6, the first sealing ring are provided in the second sealing ring mounting groove 5 prevent valve rod 7 and stem guiding from covering bleed between 4, the second sealing ring 6 prevent stem guiding set 4 and stem guiding tube socket 33 it Between bleed;The material selection polytetrafluoroethylene (PTFE) of stem guiding set 4, good airproof performance, good corrosion resistance.
The working principle of the utility model is: the tracheae of external compression air first accesses control box 12, then by control box 12 It is connected to the air inlet of single-acting spring reset cylinder 8;It, will in single-acting spring reset cylinder 8 under the action of spring when production Valve rod 7 jacks up, and makes the feed inlet of third sealing ring 13 and sealing flange 1 on flap 2 be in close contact to form sealing, presses at this time The pressure that force snesor 11 detects is F1;When blowing, it is passed through compressed air to single-acting spring reset cylinder 8, it is empty in compression Under the action of gas, piston 9 overcomes the elastic band ovable valve stem 7 of spring 10 and flap 2 to move downward, third sealing ring 9 and Sealing Method The feed inlet of orchid 1 is detached from, and the feed liquid in reaction kettle is entered in discharging elbow 32 by the feed inlet of sealing flange 1, by discharging elbow 32 exit outflow, the pressure that pressure sensor 11 detects at this time are F2;The coefficient of elasticity of known spring 10 is K, is needed The aperture of valve is that S (stroke that i.e. flap 2 moves downward is S) carries out blowing, by Hooke's law it is found that the aperture S=of valve (F2-F1)/K, then F2=SK+F1;I.e. as the pressure F that pressure sensor 11 detects2Value reach SK+F1When, control box 12 is controlled Stop is only passed through compressed air to single-acting spring reset cylinder 8, and locked air inlet pipeline prevents gas leakage, maintains opening for valve Degree.
It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this is practical new in other specific forms Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this is practical new The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing for the equivalent requirements of the claims will be fallen in All changes in justice and range are embraced therein.It should not treat any reference in the claims as limiting Related claim.

Claims (5)

1. a kind of pneumatic bottom open type baiting valve of controllable valve opening, including valve body (3), which is characterized in that the valve body (3) It is connected to including charging flange (31), discharging elbow (32) and stem guiding tube socket (33), one end of the discharging elbow (32) On the lower end surface for feeding flange (31), it is connected with stem guiding tube socket (33) in the lower wall of the discharging elbow (32), it is described Stem guiding tube socket (33) is tubular structure perpendicular to charging flange (31) setting, the top of the stem guiding tube socket (33), Lower part is flange arrangement, and the inner cavity of the tubular structure of the stem guiding tube socket (33) is communicated with the inner cavity of discharging elbow (32), The bottom of the stem guiding tube socket (33) is connected with single-acting spring reset cylinder (8), the stem guiding tube socket (33) It is provided in inner cavity stem guiding set (4), is provided with valve rod (7) in the stem guiding set (4), the top of the valve rod (7) It is provided with flap (2), the bottom end of the valve rod (7) is connected with single-acting spring reset cylinder (8), the single-acting spring reset The upper end of the spring (10) of cylinder (8) is provided with piston (9), and lower end is provided with sensor at pressure (11), the spring reset It is provided with control box (12) on cylinder (8) outer wall, control element, control route and control pipe are provided in the control box (12) Road, sensor (11) is connected with control box (12) at the pressure.
2. a kind of pneumatic bottom open type baiting valve of controllable valve opening according to claim 1, which is characterized in that described The upper end of flap (2) is provided with annular groove, and third sealing ring (13) are provided in annular groove, described to feed the upper of flange (31) End is provided with sealing flange (1), and the feed inlet of the sealing flange (1) and third sealing ring (13) cooperatively form sealing structure.
3. a kind of pneumatic bottom open type baiting valve of controllable valve opening according to claim 2, which is characterized in that described Seal washer (14) are provided between charging flange (31) and sealing flange (1).
4. a kind of pneumatic bottom open type baiting valve of controllable valve opening according to claim 1, which is characterized in that described It is provided with the first sealing ring mounting groove on the inner wall of stem guiding set (4), is provided with first in first sealing ring mounting groove Sealing ring (5) is provided with the second sealing ring mounting groove, the second sealing ring installation on the outer wall of the stem guiding set (4) The second sealing ring (6) are provided in slot.
5. a kind of pneumatic bottom open type baiting valve of controllable valve opening according to claim 1, which is characterized in that described The material selection polytetrafluoroethylene (PTFE) of stem guiding set (4).
CN201820417813.4U 2018-03-27 2018-03-27 A kind of pneumatic bottom open type baiting valve of controllable valve opening Active CN208185477U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201820417813.4U CN208185477U (en) 2018-03-27 2018-03-27 A kind of pneumatic bottom open type baiting valve of controllable valve opening

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201820417813.4U CN208185477U (en) 2018-03-27 2018-03-27 A kind of pneumatic bottom open type baiting valve of controllable valve opening

Publications (1)

Publication Number Publication Date
CN208185477U true CN208185477U (en) 2018-12-04

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201820417813.4U Active CN208185477U (en) 2018-03-27 2018-03-27 A kind of pneumatic bottom open type baiting valve of controllable valve opening

Country Status (1)

Country Link
CN (1) CN208185477U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110787875A (en) * 2019-10-29 2020-02-14 江苏万瑞达生物科技股份有限公司 Composite vitamin processing device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110787875A (en) * 2019-10-29 2020-02-14 江苏万瑞达生物科技股份有限公司 Composite vitamin processing device

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