CN2739429Y - High pressure regulating valve for carbon dioxide air extracting method urine process - Google Patents
High pressure regulating valve for carbon dioxide air extracting method urine process Download PDFInfo
- Publication number
- CN2739429Y CN2739429Y CN 200420034314 CN200420034314U CN2739429Y CN 2739429 Y CN2739429 Y CN 2739429Y CN 200420034314 CN200420034314 CN 200420034314 CN 200420034314 U CN200420034314 U CN 200420034314U CN 2739429 Y CN2739429 Y CN 2739429Y
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- China
- Prior art keywords
- valve
- valve body
- valve seat
- cylinder
- carbon dioxide
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- Expired - Fee Related
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Abstract
The utility model discloses a high pressure regulating valve for carbon dioxide air extracting method urine process, which relates to an actuating mechanism component and a valve body component. The actuating mechanism is composed of an upper cylinder head, a lower cylinder head, a cylinder block, a piston and a built-in spring; the upper and the lower cylinder head are respectively provided with an air inlet and an air outlet; the lower cylinder head is connected with a middle cover and a spigot nut, and the upper and the lower cylinder head are screwed connected with the cylinder block. The valve body component forms by that the upper valve cover is connected with the valve body bolt; the lower part of the valve body is provided with the valve seat; the medium is sealed by the sealing position which is between the valve seat and the valve core, and the medium is directly fixedly connected with the pipeline. The utility model sufficiently uses the bleed pressure, which substantially raises the difference value of the allowable pressure. The valve of the high pressure regulating valve for carbon dioxide air extracting method urine process is convenient to dismounting and maintain, which makes the material provide the corrosion resistance.
Description
Technical field
The utility model relates to a kind of septum valve, relates in particular to a kind of carbon dioxide stripping process urea technique septum valve, belongs to modulating valve production and processing field.
Background technique
Existing septum valve generally is divided into actuator, handwheel and valve body parts, actuator generally adopts the air bladder formula, the bleed pressure of vague generalization factory is 0.5～0.7Mpa, and the diaphragm in the air bladder formula actuator generally only can bear the following pressure of 0.25Mpa; Air bladder formula actuator film chamber pressure is low, adds the pressure that upper spring will be offset the overwhelming majority, makes that remaining ouput force is very little, makes modulating valve allow pressure reduction very little, can not adapt to the needs of Chemical Manufacture actual conditions.In the valve body parts, the Placement of valve body and valve seat is and is threaded, and its maximum drawback is exactly after using a period of time aborning, and corrosion and a series of problems such as crystallization, high temperature of medium all can make screw thread deform in the valve body, thread biting locking causes valve seat can not normally screw out valve body; And valve seat is again easily damaged parts, must often change, thereby the maintenance of giving valve changed spare part and caused very big difficulty.
Summary of the invention
The purpose of this utility model is to overcome the deficiency of prior art design, proposes a kind of bleed pressure that makes full use of, and increases substantially valve and allows pressure reduction, and valve maintenance, convenient disassembly use material to have more a kind of new art designs scheme of corrosion resistance.Technological improvement one: change actuator into cylinder piston type actuator, the built-in spring of cylinder, by the sealing of O type rubber seal, Placement is that bolt connects; Technological improvement two: change valve seat into damascene structures, carry seal with metal lens ring by valve seat, direct and pipeline is connected and fixed.
The utility model is achieved in that
This valve is the actuator by topmost portion, middle handwheel and the registration of the valve body parts of bottom.Actuator's part is made up of upper cylinder cover, following cylinder cap, cylinder body, piston and built-in spring, and upper and lower covers is respectively equipped with each one of source of the gas inlet, outlet, and lower end cap is connected with middle cover and spigot nut.Be connected with piston rod on the piston, the piston rod the other end has trapezoidal thread and links to each other with hand wheel nut, and hand wheel nut the other end band one flat key links to each other with worm and gear.Worm and gear cooperates in the Worm gear case of packing into, connects chord frame under the middle cover on the Worm gear case, connects valve gap under the support.By the attaching nut track bar is connected with spool.The valve body part is connected to form by bonnet and valve body bolt, band filler, Gland in the bonnet.Valve body top has guide sleeve, and the bottom has valve seat, and medium is by valve seat and the sealing of valve core sealed cover place.
Pressurized air is from the gas source air inlet air inlet, pressure spring upwards, and drive piston rod, hand wheel nut, track bar and spool move upward, and play the effect of regulating flow.When source of the gas broke down, handle with sleeve drove worm and gear, drives hand wheel nut by worm and gear again piston rod and track bar are done the opposite direction motion simultaneously, to play the effect of opening and closing spool.
The beneficial effects of the utility model are:
This modulating valve is primarily aimed at the development of carbon dioxide stripping process urea device, fully adapts to basic working condition requirement.Owing to adopt cylinder piston type actuator, allow pressure reduction to improve greatly, bring up to 18Mpa by original 0.08Mpa; The cylinder bleed pressure is 0.5Mpa in addition, can make full use of the source of the gas that the chemical plant provides, and reduces energy waste.Valve seat, has been avoided because valve seat is the drawbacks such as maintain and replace difficulty that the screw thread edge joint brings by carrying seal with metal lens ring owing to adopted time damascene structures, has maintenance, changes conveniently characteristic of simple structure.
Description of drawings
Fig. 1 is the partial cutaway diagrammatic sketch of septum valve;
1 upper cylinder cover, 2 built-in springs, 3 pistons, 4 air outlets, 5 cylinder bodies, 6 suction ports, 7 times cylinder caps, 8 spools, 9 band lens cushion valve seats, 10 valve bodies.
Embodiment
Now be described further in conjunction with the accompanying drawings and embodiments:
Actuator's parts are cylinder piston type actuator, are made up of upper cylinder cover 1, following cylinder cap 7, cylinder body 5, piston 3 and built-in spring 2, and upper and lower covers is respectively equipped with respectively one of gas source air inlet 6, air outlet 4, and following cylinder cap 7 is connected with middle cover and spigot nut.Being bolt between cylinder cap and the cylinder body 5 up and down is connected.
Valve body parts is connected to form by bonnet and valve body 10 bolts, and valve body 10 bottoms have valve seat 9, and medium is by valve seat 9 and the sealing of spool 8 sealing surface places.Valve seat 9 is embedded linkage structure with valve body 10, carries seal with metal lens ring by valve seat 9, and direct and pipeline is connected and fixed.
The utility model has proposed with cylinder first as actuator, and valve body is embedded a kind of carbon dioxide stripping process urea technique septum valve of fixedlying connected with valve seat.
Claims (3)
1, a kind of carbon dioxide stripping process urea technique septum valve, be primarily characterized in that: described actuator is made up of upper cylinder cover, following cylinder cap, cylinder body, piston and built-in spring, cylinder cap is respectively equipped with each one of gas source air inlet, air outlet up and down, following cylinder cap is connected with middle cover and spigot nut, is bolt between cylinder cap and the cylinder body up and down and is connected; Valve body parts is connected to form by bonnet and valve body bolt, and valve body lower portion has valve seat, and medium is by valve seat and the sealing of seal spool place, and direct and pipeline is connected and fixed.
2, septum valve according to claim 1 is characterized in that: described actuator is a cylinder piston type actuator.
3, septum valve according to claim 1 is characterized in that: for embedding valve body formula structure, valve seat is for carrying lens cushion valve seat between described valve seat and the valve body, and direct and pipeline is connected and fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420034314 CN2739429Y (en) | 2004-04-13 | 2004-04-13 | High pressure regulating valve for carbon dioxide air extracting method urine process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420034314 CN2739429Y (en) | 2004-04-13 | 2004-04-13 | High pressure regulating valve for carbon dioxide air extracting method urine process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2739429Y true CN2739429Y (en) | 2005-11-09 |
Family
ID=35354495
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420034314 Expired - Fee Related CN2739429Y (en) | 2004-04-13 | 2004-04-13 | High pressure regulating valve for carbon dioxide air extracting method urine process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2739429Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102606753A (en) * | 2011-12-16 | 2012-07-25 | 吴忠仪表有限责任公司 | Valve special for urea |
| CN104048078A (en) * | 2014-06-30 | 2014-09-17 | 无锡市威海达机械制造有限公司 | Air-operated ultrahigh-pressure one-way valve |
-
2004
- 2004-04-13 CN CN 200420034314 patent/CN2739429Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102606753A (en) * | 2011-12-16 | 2012-07-25 | 吴忠仪表有限责任公司 | Valve special for urea |
| CN104048078A (en) * | 2014-06-30 | 2014-09-17 | 无锡市威海达机械制造有限公司 | Air-operated ultrahigh-pressure one-way valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |