CN2337595Y - Self-regulating liquid level controller - Google Patents
Self-regulating liquid level controller Download PDFInfo
- Publication number
- CN2337595Y CN2337595Y CN 97242212 CN97242212U CN2337595Y CN 2337595 Y CN2337595 Y CN 2337595Y CN 97242212 CN97242212 CN 97242212 CN 97242212 U CN97242212 U CN 97242212U CN 2337595 Y CN2337595 Y CN 2337595Y
- Authority
- CN
- China
- Prior art keywords
- liquid level
- self
- level controller
- valve
- liquid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Landscapes
- Control Of Non-Electrical Variables (AREA)
Abstract
The utility model relates to a self-regulating liquid level controller, which comprises a liquid level sensor and a regulating valve communicated with the liquid level sensor. The entrance of the regulating valve is provided with a pressure reducing valve or an orifice plate. The regulating valve is in parallel provided with a by-pass valve and controls the output liquid according to the characteristics of the fluid mechanics existing in the flowing gas and liquid. The utility model has the advantages of no mechanical motion components, no electric or pneumatic components, small self-regulating liquid level fluctuation, and large regulation range, and has higher properties and reliability than the existing various liquid level controllers.
Description
The utility model relates to self-adjustment liquid level controller, belongs to the automatic control technology field.
At present, the fluid level controller of industrial extensive employing has mechanical type, pneumatic type and electrodynamic type.All it acts frequently because of topworks for their, easy to wear, corrosion and the bite fault often takes place, or, have a strong impact on the quality and quantity of security, economy and the product of being transferred object because of electric, pneumatic components and parts and line fault make liquid level out of control." two stream of vapour-liquid self regulating water level controller " (patent No.: ZL 92232825.0) and " differential pressure type self regulating water level controller " (patent No.: the ZL 95210632.9) of invention in the recent period, because its movement-less part, no electrical contact, the problem that conventional fluid level controller is existed has obtained good solution, and the breakthrough of matter is arranged.But still exist the level fluctuation amplitude big (reach ± 200～300mm), poor stability and regulate range of control less (generally can only in 100%～60% load range work), underload is regulated the shortcoming of control ability difference.Thereby the more novel fluid level controller of industrial urgent hope invention.
The utility model is at the problems referred to above, designed a kind of self-adjustment liquid level controller, it is to rely on flow self hydrodynamic characteristic of vapour, liquid, output liquid is controlled, thereby realized no mechanical moving component, the controller of no electric, pneumatic components and parts, its self-regulation level fluctuation is little, and range of adjustment is big.
Self-adjustment liquid level controller is based on flow self hydrodynamic characteristic of vapour, liquid, and the output liquid flow is controlled, and realizes the purpose of control liquid level automatically.
Fig. 1 is one of embodiment of the present utility model.
Fig. 2 is two of embodiment of the present utility model.
Below in conjunction with accompanying drawing structural principle of the present utility model and principle of work are elaborated.
Self-adjustment liquid level controller is made up of sensor 1 and variable valve 5 two large divisions.
Variable valve 5 is valves that do not have mechanical moving element, adorns a spool 6 in variable valve 5 shells, and spool 6 is whole nozzles of a convergent flaring, has the plurality of rows aperture around the convergent nozzle of its entrance point complete; Spool 6 also can be the orifice plate (see figure 2) of band enlarging, and the inlet tube of vapour (or liquid) body that receiving sensor 1 sends is equipped with in the housing side, and inlet tube is connected with the efferent duct of sensor 1.Sensor 1 is a bend pipe that is contained in the industrial container 2, and its end can be to be with bell-mouthed receiver, also can be flat mouthful receiver (see figure 2).A reduction valve or orifice plate 3 are adorned in variable valve 5 porch, and reduction valve or orifice plate 3 can be connected with industrial container 1 bottom, output liquid is reduced pressure regulate to guarantee that sensor transmits required vapour (liquid) body smoothly.For the work as usual of commercial unit when variable valve 5 faults, be installed in parallel a bypass with variable valve 5, configuration one by-pass valve 4 in the bypass, another purposes of this bypass is the deviation that is used for adjusted design parameter and operational factor generation.
When the liquid level of industrial container 2 rose to the hydraucone of liquid level sensor 1 and seals hydraucone, the liquid flow sensor also sent variable valve 5 to.What at this moment variable valve 5 was accepted to send here from industrial container 2 and sensor 1 all is liquid, thereby the output of variable valve 5 is single-phase liquids, and the through-current capability of liquid increases, so the liquid level of industrial container 2 descends.Otherwise industrial container 2 liquid levels descend, and when being lower than the hydraucone of sensor 1, gas flow sensor 1 also sends variable valve 5 to.At this moment the output of variable valve 5 is vapour, liquid two phase fluid, and the through-current capability of liquid descends, so the rising of the liquid level of industrial container 1, has so just realized industrial container 1 automatic control of liquid level.
The advantage of this self-adjustment liquid level controller is: 1. whole fluid level control device does not have mechanical moving component, no electric, pneumatic components and parts, so safe reliability is good, and long service life; 2. whole fluid level control device adopts full-closed structure, does not therefore have and leaks; When 3, the structure of sensor and regulating system can guarantee operating load fluctuation (100%～20%), level fluctuation was no more than ± 50mm, and this is maximum characteristics of the present utility model.
The utility model instructs, studies on the basis in theory, on probation through laboratory examination and industrialness, the principle that proves this self-adjustment liquid level controller is correct, rational in infrastructure, regulate reliably level stability, functional, reach load when 100%～20% scope fluctuates, level fluctuation is no more than ± 50mm, has overcome other liquid level meter weakness in this respect.This utility model has realized no mechanical moving component equally, does not have electricity, pneumatic components and parts, full-enclosed structure, thereby its security, good reliability, and long service life does not have and leaks particularly outstandingly, is renewal product of new generation.
According to the purpose of this utility model,, succeeded in developing two air turbines and driven low discharge high speed elutriation nitrogen blower fans by design, research, enforcement technique scheme.37000 rev/mins of unit design speeds, highest stabilizing running speed can reach 55000 rev/mins.Through laboratory machinery, aeroperformance test, on-the-spot installation, system debug etc. now formally formally put into production use on certain refinery continuous platforming device.Its continuous operation result shows: the every technical indicator of unit meets or exceeds designing requirement, has realized the purpose of this utility model fully.
Claims (4)
1. self-adjustment liquid level controller, comprise a liquid level sensor (1) that can be connected with industrial container (2) top, and and the variable valve (5) that is connected of liquid level sensor (1), feature of the present utility model is, configuration one spool (6) in the variable valve (5), variable valve (5) porch disposes a reduction valve or orifice plate (3), variable valve (5) configuration in parallel one by-pass valve (4).
2. self-adjustment liquid level controller according to claim 1 is characterized in that, said spool (6) is the whole nozzle of a convergent flaring, has the plurality of rows aperture around the convergent nozzle of its entrance point complete.
3. self-adjustment liquid level controller according to claim 1 is characterized in that, said spool (6) is the orifice plate of band enlarging.
4. self-adjustment liquid level controller according to claim 1 is characterized in that, said sensor 1 is one to be contained in the bend pipe in the industrial container, and its end can be the receiver of band hydraucone or flat opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97242212 CN2337595Y (en) | 1997-12-23 | 1997-12-23 | Self-regulating liquid level controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97242212 CN2337595Y (en) | 1997-12-23 | 1997-12-23 | Self-regulating liquid level controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2337595Y true CN2337595Y (en) | 1999-09-08 |
Family
ID=33951518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97242212 Expired - Lifetime CN2337595Y (en) | 1997-12-23 | 1997-12-23 | Self-regulating liquid level controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2337595Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100365532C (en) * | 2005-06-27 | 2008-01-30 | 西安交通大学 | Pumping type self-adjustment liquid level controller containing no movement components |
| CN100386704C (en) * | 2004-12-06 | 2008-05-07 | 西安交通大学 | Separated two pbase flow liquid level controller |
| CN104932561A (en) * | 2015-05-04 | 2015-09-23 | 中石化宁波工程有限公司 | Synthetic gas washing tower liquid level control system and control method thereof |
-
1997
- 1997-12-23 CN CN 97242212 patent/CN2337595Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100386704C (en) * | 2004-12-06 | 2008-05-07 | 西安交通大学 | Separated two pbase flow liquid level controller |
| CN100365532C (en) * | 2005-06-27 | 2008-01-30 | 西安交通大学 | Pumping type self-adjustment liquid level controller containing no movement components |
| CN104932561A (en) * | 2015-05-04 | 2015-09-23 | 中石化宁波工程有限公司 | Synthetic gas washing tower liquid level control system and control method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106015022B (en) | A kind of horizontal pipeline centrifugal pump of multidirectional output | |
| CN109990448B (en) | Venturi tube negative-pressure drainage system for central air conditioner | |
| CN2337595Y (en) | Self-regulating liquid level controller | |
| CN202595816U (en) | Intelligent negative-pressure-free frequency conversion constant-voltage water supply system | |
| CN107044458B (en) | A kind of ropeway fluid power system using accumulator pressure regulation | |
| CN110043415A (en) | A kind of low voltage difference pipe generator | |
| CN204299837U (en) | A kind of metering pump being applied to production teflon | |
| CN101435572A (en) | Water feed flow control and pressure compensating system of boiler | |
| CN108506558B (en) | Pneumatic regulating valve | |
| CN105888914A (en) | Small household vertical pipeline axial flow type water turbine | |
| CN201136703Y (en) | Auto-adjusting laval nozzle | |
| CN2931585Y (en) | Constant-voltage frequency conversion silencing pump-in-tube water feeding equipment | |
| CN100386704C (en) | Separated two pbase flow liquid level controller | |
| CN201650736U (en) | Desulfurization tower air supply roots blower automatic control device | |
| CN218971965U (en) | Remote voltage and current regulating system applied to indirect acting voltage regulator | |
| CN2818568Y (en) | Pressurizing water supplier of pipe line network | |
| CN87203909U (en) | Pneumatic pump-model b | |
| CN109185174A (en) | A kind of energy-saving pump | |
| CN216260438U (en) | Emulsion pump station | |
| CN215486433U (en) | Variable-frequency speed regulation system of pump unit | |
| CN2751339Y (en) | A split type two-phase flow liquid level controller | |
| CN218962236U (en) | Wet desulfurization device | |
| CN2485492Y (en) | Self sucking or little pressure check valve | |
| CN221003078U (en) | Automatic control pumping system of pneumatic pump of heat recovery water tank | |
| CN114892767B (en) | Energy-saving and environment-friendly water supply equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |