CN101739035B - Nozzle-baffle type water level regulator - Google Patents
Nozzle-baffle type water level regulator Download PDFInfo
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- CN101739035B CN101739035B CN200910073368XA CN200910073368A CN101739035B CN 101739035 B CN101739035 B CN 101739035B CN 200910073368X A CN200910073368X A CN 200910073368XA CN 200910073368 A CN200910073368 A CN 200910073368A CN 101739035 B CN101739035 B CN 101739035B
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Abstract
The invention provides a nozzle-baffle type water level regulator which comprises a floater type emitter (1), a diaphragm type regulating valve (2), a water pump (3), a working water valve (4), a filter (5), a voltage stabilizing valve (6), an upper fixing throttle orifice (7), a lower fixing throttle orifice (8), a steam space valve (10), a water space valve (11), a seawater valve (12), a seawater bypass valve (13) and a pressure gauge (9). The nozzle-baffle type water level regulator can continuously control the water level in a seawater evaporator, has high control precision, allows a controlled water level to have a larger change range and eliminates the defects of electricity leakage, short circuits or electric shocks, and the like brought by severe environment. The nozzle-baffle type water level regulator is suitable for industrial equipment such as steam boilers, high pressure and low pressure heaters, and the like, particularly for seawater evaporators or sewage condensers in seawater desalinating devices.
Description
Technical field
What the present invention relates to is a kind of water level control apparatus.
Background technology
Fresh water peculiar to vessel comes from sea water desalinating unit, and after this was made water system and puts into operation, water level controller (or system) can be controlled the confluent of sea water evaporator or dirty condenser automatically, and with its stable level remain in the given scope.Water level in steam boiler and the high and low pressure well heater also needs similar control.
Traditional water level controller is varied, can be divided into mechanical type, electronic type and electromechanical substantially.Wherein, UQK type ball float level controller is made up of floating drum, ball float assembly, adjusting tank assembly, its operating principle is to utilize the principle of magnet steel homopolar-repulsion to design, the ball float assembly is with SEA LEVEL VARIATION, when the round magnet steel on the ball float assembly during near the magnet steel of magnet steel assembly because the effect magnet steel assembly that repels each other produces a drift angle magnet steel rapidly moves with mercury cut-off, thereby finish switch motion.TQ-UHZ type magnetic turnover panel liquid level gauge also is based on buoyancy and magnetic force principle, and its float (abbreviation magnetic float) position in measured medium that has magnet is influenced by buoyancy.The variation of liquid level causes magnetostatic couple of force cooperation that variation, magnetic float and the magnetic of magnetic float position turns over post (also becoming the magnetic turnover panel) with causing magnetic to turn over post flip an angle (magnetic turns over the different color of post surface applied), and then the situation of the interior liquid level of reflection container, its weak point is: can only carry out discontinuous double control to the start and stop of solenoid valve or water pump; Control accuracy lower (maximum range of control is ± 25mm); And electron device is not suitable for the wet environment in the cabin.
SQW-4 type stream-liquid two-phase flow self-adjustment liquid level controller is based on Hydrodynamics Theory, a kind of non-electric class water level controller that utilizes the flow characteristics of stream-liquid two-phase flow to design, and it comprises signal pipe and regulator two parts; The effect of signal pipe is that adjusting vapour is sent in transmission water level signal and change; The effect of regulator is the control outlet water yield, is equivalent to the topworks in the varitrol.Its basic Principles of Regulation are: when the water level of well heater raise, the water level in the signal pipe rose thereupon, and the adjusting vapour amount that causes sending reduces, thereby flow through the minimizing of vapour amount, the water yield increase of two-phase flow in the regulator, and the water level of well heater descends thereupon; Vice versa.Its weak point is: mounting condition is relatively harsher, for example requires the tight non-internal leakage of gate valve; The height of signal pipe is the center with controlled height of water level line during installation, and disposable welding, is unsuitable for the change of this height of water level line.
" design studies of Water Level Modulator of Main Condenser " (CNKI (middle National IP Network) Master of engineering academic dissertation, Chen Liang, Harbin Engineering University, 2005.2) the novel water-level regulator of the non-electric class of a civilian disclosed another kind, comprise float signalling generator (constituting), three-way control valve (constituting), filtrator, voltage stabilizer, tensimeter, throttling element and other valve, water pump and pipeline by diaphragm, choker-line, spool and seat etc. by twin-jet nozzle, float, baffle plate etc.But as academic dissertation, it has only provided the design concept and the experimental verification of this class water-level regulator, with regard to the structure of parts, also has a suitable segment distance with the engineering application.
Summary of the invention
The object of the present invention is to provide and a kind ofly can carry out stepless control the water level in the sea water evaporator, the control accuracy height, allow controlled water level that bigger variation range is arranged, can eliminate the nozzle-baffle type water level regulator of drawbacks such as the automatically controlled electric leakage that brings, short circuit or electric shock under the rugged surroundings.
The object of the present invention is achieved like this:
Comprise float-type signalling generator 1, diaphragm control valve 2, water pump 3, work water valve 4, filtrator 5, pressure maintaining valve 6, go up fixed restriction orifice plate 7, following fixed restriction orifice plate 8, air space valve 10, hydrospace valve 11, kingston valve 12, seawater by-pass valve 13 and tensimeter 9; It is characterized in that: described float-type signalling generator 1 mainly is made up of cylindrical shell 1-9, upper end cover 1-7, bottom end cover 1-8, float 1-1, baffle plate 1-2, top nozzle 1-5, following nozzle 1-3 and inlet valve 1-12; The working water that water pump 3 draws links to each other with two working water interfaces on the float-type signalling generator 1 through last fixed restriction orifice plate 7 and following fixed restriction orifice plate 8 respectively through 6 fens two-way of work water valve 4, filtrator 5, pressure maintaining valve, and the water on the float-type signalling generator 1, air space interface link to each other with water, the air space of sea water evaporator 00 through air space valve 10, hydrospace valve 11 respectively; After pressure maintaining valve 6 and last fixed restriction orifice plate 7 and following fixed restriction orifice plate 8, a tensimeter 9 is arranged respectively; The top nozzle 1-5 of float-type signalling generator 1, down nozzle 1-3 and last fixed restriction orifice plate 8, the pipeline between the fixed restriction orifice plate 8 has the chamber that the upper diaphragm 2-4 that is connected diaphragm control valve 2 along separate routes and middle diaphragm 2-5, middle diaphragm 2-5 and following diaphragm 2-6 form respectively respectively down; Seawater one tunnel enters sea water evaporator 00 through kingston valve 12, diaphragm control valve 2, and another road directly enters sea water evaporator 00 through seawater by-pass valve 13.
Float-type signalling generator that the core component of nozzle-baffle type water level regulator of the present invention is made up of twin-jet nozzle-baffle plate and the diaphragm control valve of forming by diaphragm-spool; Because of the former forms linker with the hydrospace of the air space on sea water evaporator top and bottom respectively by upper and lower two pipelines, so interior average liquid level height of baffle plate on float and sea water evaporator flushes and synchronously changes gap between self and the upper and lower jet hole with it in it; Pump into working water in two nozzles from the external world by described baffle plate expenditure and pressure, and enter in formed two chambers of three diaphragms that are connected with valve rod in the described variable valve through separately pipeline respectively, and under the effect of pressure reduction, move the spool that is connected with valve rod, promptly change the aperture of diaphragm control valve, thereby realize the stepless control of water level.Its beneficial effect is: can carry out stepless control to the water level in the sea water evaporator; Allow controlled height of water level line in a big way, to change; The control accuracy height; Drawbacks such as the automatically controlled electric leakage that brings, short circuit or electric shock under the wet environment have been eliminated.
As the float in the float-type signalling generator of core component be an energy at floating hollow, the double-deck cylindrical tube of the water surface, hollow upper end installs a baffle plate, but and easy on and off slide and not to be inserted in the described cylindrical shell (having swing); For the ease of observing working condition and described baffle position in the cylindrical shell, all or part of transparent and tyre scale of described cylindrical shell; In the center of described cylindrical shell two ends end cap, screw in one section outer threaded nozzle separately vertically, when treating that distance between two jet holes reaches design load, fix it; Process interface on the air space interface that communicates with sea water evaporator and the working water in the upper end of described cylindrical shell, process hydrospace interface and the working water lower interface that communicates with sea water evaporator in addition in the lower end of described cylindrical shell, and the air space interface at the float-type signalling generator installs inlet valve additional, condenses into the vacuum that causes behind the water with elimination because of the part gas.
Another vitals of water-level regulator is a diaphragm control valve, the middle part of its valve rod is fixed with the spool of traditional stop valve, the compartment of terrain, top of valve rod is fixed with the trilamellar membrane sheet, the periphery of diaphragm is pressed in the valve body, thereby forms up and down two diaphragm chambers and communicate with two nozzles in the float-type signalling generator by the hole on the valve body wall and pipeline respectively; In other words, in the post-decompression working water of nozzle-baffle plate can enter described two diaphragm chambers respectively, and under the effect of its pressure reduction, promote spool, and then change the aperture of diaphragm control valve.In order to ensure the directivity of described valve core movement, also install a diaphragm in the lower end of valve rod, and its periphery is pressed in the valve body also.
Remaining part in the water-level regulator is standardized product as water pump, filtrator, pressure maintaining valve, fixed restriction orifice plate, hydrospace valve, air space valve, work water valve, kingston valve, seawater by-pass valve and tensimeter.
Each parts connects by following flow process in the water-level regulator.
The working water that water pump draws through work water valve, filtrator, pressure maintaining valve divide two-way each link to each other with the upper and lower interface of working water on the float-type signalling generator through a fixed restriction orifice plate, and the water on the float-type signalling generator, air space interface link to each other with water, the air space of sea water evaporator through water, air space valve respectively; After pressure maintaining valve and fixed restriction orifice plate, respectively install a tensimeter additional with the hydrodynamic pressure in the signal piping.The upper and lower nozzle of float-type signalling generator and the pipeline between the fixed restriction orifice plate have the upper and lower diaphragm chamber that leads to diaphragm control valve along separate routes respectively.The seawater one tunnel that is used for additional sea water evaporator enters sea water evaporator through kingston valve, diaphragm control valve, and another road directly enters sea water evaporator through the seawater by-pass valve---and when the sea water evaporator urgent water injection, close kingston valve, open the seawater by-pass valve; And when needing water level in the control sea water evaporator, close the seawater by-pass valve, open kingston valve.
The principle of work of nozzle-baffle type water level regulator is: when the water level of sea water evaporator is in assigned altitute, baffle plate on the float is in the centre position of two jet holes just, be upper and lower jet hole all and 0.2-0.5 millimeter gap arranged between the baffle plate on the float, at this moment, the float-type signalling generator outputs to the interior working water of upper and lower two diaphragm chambers of diaphragm control valve does not have pressure reduction, and the aperture of diaphragm control valve is a reasonable value.When the water level of sea water evaporator changes, when for example raising, float drives on the baffle plate and moves, and the gap of top nozzle mouth and baffle plate reduces, the gap of following jet hole and baffle plate increases, so the float-type signalling generator outputs to the pressure of the pressure of diaphragm control valve epicoele working water greater than the cavity of resorption working water, and then reduce the aperture of diaphragm control valve, the water yield that flows into sea water evaporator reduces, water level falls after rise, and float is returned to rational position, also balance again thereupon of two chamber pressures between diaphragm.When decline of water table, whole adjustment process is opposite with said process.
Beneficial effect of the present invention is: can carry out stepless control to the water level in the sea water evaporator; The control accuracy height; Allow controlled water level that bigger variation range is arranged; Drawbacks such as the automatically controlled electric leakage that brings, short circuit or electric shock under the rugged surroundings have been eliminated.The present invention is applicable to sea water evaporator or the dirty condenser in the commercial units, particularly sea water desalinating unit such as steam boiler and high and low pressure well heater.
Description of drawings
Fig. 1 is that parts of the present invention connect and schematic diagram;
Fig. 2 is the structural representation of integrated signalling generator;
Fig. 3 is the structural representation of diaphragm control valve.
Embodiment
For example the present invention is done description in more detail below in conjunction with accompanying drawing:
In conjunction with Fig. 1.A kind of nozzle-baffle type water level regulator comprises float-type signalling generator 1, diaphragm control valve 2, water pump 3, work water valve 4, filtrator 5, pressure maintaining valve 6, fixed restriction orifice plate 7,8 and air space valve 10, hydrospace valve 11, kingston valve 12, seawater by-pass valve 13 and tensimeter 9.Float-type signalling generator 1 as core component mainly is made up of cylindrical shell 1-9, upper end cover 1-7, bottom end cover 1-8, float 1-1, baffle plate 1-2, top nozzle 1-5 and top nozzle 1-3, inlet valve 1-12.
Each parts connects by following flow process in the water-level regulator: as shown in Figure 1, each links to each other with two working water interfaces on the float-type signalling generator 1 through a fixed restriction orifice plate 7,8 working water that water pump 3 draws through 6 fens two-way of work water valve 4, filtrator 5, pressure maintaining valve, and the water on the float-type signalling generator 1, air space interface link to each other with water, the air space of sea water evaporator 00 through air space valve 10, hydrospace valve 11 respectively; After pressure maintaining valve 6 and fixed restriction orifice plate 7,8, respectively install a tensimeter 9 (totally 3) additional with the hydrodynamic pressure in the signal piping; Pipeline between float-type signalling generator 1 described upper and lower nozzle 1-5 and 1-3 and the fixed restriction orifice plate 7,8 has upper and lower two diaphragm chambers (referring to Fig. 3) that lead to along separate routes diaphragm control valve 2 respectively, i.e. the chamber that forms respectively of upper diaphragm 2-4 and middle diaphragm 2-5, middle diaphragm 2-5 and following diaphragm 2-6; The seawater one tunnel that is used for additional sea water evaporator 00 enters sea water evaporator 00 through kingston valve 12, diaphragm control valve 2, another road directly enters sea water evaporator 00 through seawater by-pass valve 13---when to sea water evaporator 00 urgent water injection, close kingston valve 12, open seawater by-pass valve 13; And when the water level in the need control sea water evaporator 00, close seawater by-pass valve 13, open kingston valve 12.Except that float-type signalling generator 1 and diaphragm control valve 2, remaining part in the regulating system is standardized product as water pump 3, work water valve 4, filtrator 5, pressure maintaining valve 6, fixed restriction orifice plate 7,8, tensimeter 9, air space valve 10, hydrospace valve 11, kingston valve 12 and seawater by-pass valve 13.
Be that because the current of float signalling generator 1 interior upper and lower two nozzle 1-5 and 1-3 ejection will cause the fluctuation of float 1-1 if can not in time flow into sea water evaporator 00, this operate as normal to regulating system is disadvantageous with being worth mentioning; So float signalling generator 1 should be not less than 20 millimeters with the nominal diameter of sea water evaporator 00 connecting line.
Install at the scene of regulating system for convenience, during structural design that pressure maintaining valve 6, fixed restriction orifice plate 7,8, float signalling generator 1 and tensimeter 9 in the empty frame line of Fig. 1 is integrated, is referred to as integrated signalling generator 1 '; Fig. 2 has provided the structural representation of integrated signalling generator.Wherein, float 1-1 be an energy at floating hollow, the double-deck cylindrical tube of the water surface, hollow upper end installs baffle plate 1-2, but easy on and off slides and not to be inserted in the cylindrical shell 1-9 (having swing); For the ease of the position of working condition in the inspection section and described baffle plate 1-2, all or part of transparent and tyre scale of described cylindrical shell 1-9; Screw socket place, center at upper end cover 1-7 and the bottom end cover 1-8 of described cylindrical shell 1-9, each installs nozzle 1-5 and following nozzle 1-3 by one section threaded line pipe coaxial cable ground, adjusting two jet holes reaches design load with distance between the baffle plate 1-2 (two gaps equates, respectively be 0.2～0.5 millimeter), with fixed by nut it.The said modules bulk cargo is in the casing of being made up of upper head plate 1-10, bottom plate 1-11 and coaming plate 1-0; Three tensimeters 9 are installed in the top of upper head plate 1-10, and side has the interface that is connected with the air space of the diaphragm chamber of variable valve 2, sea water evaporator 00 respectively, and install inlet valve 1-12 additional at the rear port place, condense into the vacuum that causes behind the water with elimination part gas; The interface that the below of bottom plate 1-11 has the hydrospace of sea water evaporator 00 to connect, side has the interface that is connected with another diaphragm chamber of variable valve 2; By being threaded fixed restriction orifice plate 7,8 is fitted between the interface board and pressure maintaining valve 6 at coaming plate 1-0 middle part; Described tensimeter 9, pressure maintaining valve 6, fixed restriction orifice plate 7,8 and each interface all are connected by the described flow process of Fig. 1 by the pipeline that is arranged in the described casing.
Fig. 3 has provided the structural representation of diaphragm control valve, and it comprises valve body 2-1, valve rod 2-2, spool 2-3, upper diaphragm 2-4, middle diaphragm 2-5, following diaphragm 2-6, bottom diaphragm 2-7, upper limit knob 2-8 and lower limit knob 2-9; Wherein, the middle part of valve rod 2-2 is fixed with the spool 2-3 of traditional stop valve, the compartment of terrain, top of valve rod 2-2 installs upper diaphragm 2-4, middle diaphragm 2-5 and following diaphragm 2-6, the periphery of diaphragm is fixed tightly in the opening part of valve body 2-1 upper end by bolt, pressing plate and gland, and two diaphragm chambers up and down that form thus communicate with float signalling generator 1 interior upper and lower two nozzle 1-5 and 1-3 by hole on the valve body 2-1 wall and pipeline respectively; In other words, in the post-decompression working water of nozzle-baffle plate can enter described upper and lower two diaphragm chambers respectively, and under the effect of its pressure reduction, promote spool 2-3, and then change the aperture of diaphragm control valve 2.In order to ensure described spool 2-3 travel direction, install bottom diaphragm 2-7 in the lower end of valve rod 2-2, and its periphery is pressed on the opening part of valve body 2-1 bottom by bolt and gland; For the displacement damage diaphragm that prevents that valve rod 2-2 is excessive, coaxial cable ground screws in upper limit knob 2-8 and lower limit knob 2-9 on the gland in the outside, valve rod 2-2 two ends.
Claims (3)
1. a nozzle-baffle type water level regulator comprises float-type signalling generator (1), diaphragm control valve (2), water pump (3), work water valve (4), filtrator (5), pressure maintaining valve (6), goes up fixed restriction orifice plate (7), following fixed restriction orifice plate (8), air space valve (10), hydrospace valve (11), kingston valve (12), seawater by-pass valve (13) and tensimeter (9); It is characterized in that: described float-type signalling generator (1) mainly is made up of cylindrical shell (1-9), upper end cover (1-7), bottom end cover (1-8), float (1-1), baffle plate (1-2), top nozzle (1-5), following nozzle (1-3) and inlet valve (1-12); The working water that water pump (3) draws divides two-way to link to each other with two working water interfaces on the float-type signalling generator (1) through last fixed restriction orifice plate (7) and following fixed restriction orifice plate (8) respectively through work water valve (4), filtrator (5), pressure maintaining valve (6), and the water on the float-type signalling generator (1), air space interface link to each other with water, the air space of sea water evaporator (00) through air space valve (10), hydrospace valve (11) respectively; At pressure maintaining valve (6), last fixed restriction orifice plate (7) and following fixed restriction orifice plate (8) tensimeter (9) is arranged respectively afterwards; The top nozzle (1-5) of float-type signalling generator (1), down nozzle (1-3) and last fixed restriction orifice plate (8), the pipeline between the fixed restriction orifice plate (8) has the chamber that the upper diaphragm (2-4) that is connected diaphragm control valve (2) along separate routes and middle diaphragm (2-5), middle diaphragm (2-5) and following diaphragm (2-6) form respectively respectively down; Seawater one tunnel enters sea water evaporator (00) through kingston valve (12), diaphragm control valve (2), and another road directly enters sea water evaporator (00) through seawater by-pass valve (13).
2. nozzle-baffle type water level regulator according to claim 1 is characterized in that: pressure maintaining valve (6), last fixed restriction orifice plate (7), following fixed restriction orifice plate (8), float-type signalling generator (1) and tensimeter (9) are formed integrated signalling generator (1 '); Wherein, float (1-1) is hollow, a double-deck cylindrical sleeves, the hollow upper end of float installs baffle plate (1-2), but the float easy on and off is inserted in all or part of cylindrical shell (1-9) transparent and scale in addition slidably, each installs nozzle (1-5) by one section threaded line pipe coaxial cable ground and following nozzle (1-3) is also used fixed by nut, the formation float assembly at the screw socket place, center of the upper end cover (1-7) of described cylindrical shell (1-9) and bottom end cover (1-8); Described float assembly is contained in the casing of being made up of upper head plate (1-10), bottom plate (1-11) and coaming plate (1-0); Three tensimeters (9) are installed in the top of upper head plate (1-10), and side has the interface that is connected with the air space of a diaphragm chamber of diaphragm control valve (2), sea water evaporator (00) respectively, and install inlet valve (1-12) additional at the rear port place; The interface that the below of bottom plate (1-11) has the hydrospace of sea water evaporator (00) to connect, side has the interface that is connected with another diaphragm chamber of diaphragm control valve (2); Connect by bolt and will go up fixed restriction orifice plate (7) and following fixed restriction orifice plate (8) and be fitted between the interface board and pressure maintaining valve (6) in the middle part of the coaming plate (1-0).
3. nozzle-baffle type water level regulator according to claim 1 and 2 is characterized in that: diaphragm control valve (2) comprises valve body (2-1), valve rod (2-2), spool (2-3), upper diaphragm (2-4), middle diaphragm (2-5), following diaphragm (2-6), bottom diaphragm (2-7), upper limit knob (2-8) and lower limit knob (2-9); The middle part of valve rod (2-2) installs the spool (2-3) of traditional stop valve, the compartment of terrain, top of valve rod (2-2) installs upper diaphragm (2-4), middle diaphragm (2-5) and following diaphragm (2-6), the periphery of diaphragm is fixed tightly in the opening part of valve body (2-1) upper end by bolt, pressing plate and gland, processes a pipe adapter interface respectively on the wall of two diaphragm chambers up and down of Xing Chenging thus; The lower end of valve rod (2-2) installs bottom diaphragm (2-7), and its periphery is pressed on the opening part of valve body (2-1) bottom by bolt and gland; Coaxial cable ground screws in upper limit knob (2-8) and lower limit knob (2-9) on the gland in the outside, valve rod (2-2) two ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910073368XA CN101739035B (en) | 2009-12-08 | 2009-12-08 | Nozzle-baffle type water level regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910073368XA CN101739035B (en) | 2009-12-08 | 2009-12-08 | Nozzle-baffle type water level regulator |
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| Publication Number | Publication Date |
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| CN101739035A CN101739035A (en) | 2010-06-16 |
| CN101739035B true CN101739035B (en) | 2011-09-14 |
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| CN200910073368XA Expired - Fee Related CN101739035B (en) | 2009-12-08 | 2009-12-08 | Nozzle-baffle type water level regulator |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5799265B2 (en) | 2012-12-27 | 2015-10-21 | パナソニックＩｐマネジメント株式会社 | Measurement system, desalination system, and desalination method used in desalination system |
| JP5689213B2 (en) | 2013-01-18 | 2015-03-25 | パナソニックＩｐマネジメント株式会社 | Desalination system and desalination method |
| CN103175187B (en) * | 2013-03-19 | 2015-01-21 | 江苏白雪电器股份有限公司 | Steam boiler |
| CN107037835B (en) * | 2017-05-27 | 2023-06-13 | 宁波祈禧电器有限公司 | Electrodeless water level control water tank |
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Granted publication date: 20110914 Termination date: 20171208 |