CN101498941B - Flow controller based on temperature gradient - Google Patents
Flow controller based on temperature gradient Download PDFInfo
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- CN101498941B CN101498941B CN2009100104279A CN200910010427A CN101498941B CN 101498941 B CN101498941 B CN 101498941B CN 2009100104279 A CN2009100104279 A CN 2009100104279A CN 200910010427 A CN200910010427 A CN 200910010427A CN 101498941 B CN101498941 B CN 101498941B
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- head piece
- bulb
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Abstract
The invention discloses a flow controller based on temperature difference and used for the support part of a building heating energy meter, and the heating energy meter composed by the flow controller and a hot water meter is economical and practical, and consumes no electricity, and the power of the heating energy meter is supplied by heating fluid. Two mutually closed cavity bodies are arranged in a valve shell, a temperature wrap filled with temperature sensing medium is arranged in each cavity body, high and low temperature heating fluids flow through and contact the temperature wrap, the temperature sensing medium expands when being heated and pushes a bellows fixedly and hermetically connected with the temperature wrap and a piston rod propped against the bellows to move axially, two piston rods are respectively and fixedly connected with a sleeve and a valve core which are movably connected and can axially and relatively move, and relative displacement difference produced by the sleeve provided with a through-hole groove and the valve core double as the temperature wrap is just equal to the opening value of a measurement outlet. When the opening increases, measurement flow increases with equal ratio, and the measurement flow is linear to the temperature difference of the flow in high and low temperature channels.
Description
Affiliated field
The present invention relates to be used for a kind of flow controller of heating family with the heat energy table, this controller is an independent variable with the temperature difference of heating fluid high and low temperature runner, realizes the real-time equal proportion regulation and control of the flow of meter fluid.
Background technology
Building heating is if realize can save energy 25% by the family meterage, and the heat energy table is main support parts of realizing the heating metering charge.Current, domestic family is the electron type heat energy table that comes from European technology with the main pattern of heat energy table.Electron type heat energy table is formed by the unit constructions such as temperature sensor of flow sensor, counter and pairing, major advantage is the numeral demonstration and is furnished with network communication interface, but owing to the price height, by artificially deliberating interference on external power source, the structure easily and destroying, therefore, it is applied to a certain extent and is restricted.
Summary of the invention
The purpose of this invention is to provide a kind of is the support component-based on the flow control apparatus of temperature difference of the economic, practical thermal energy meter of non electrical quantity by the self-supporting power of heating fluid, all components.This flow controller adds a hot water gauge can form complete heat energy table.
Two mutual airtight cavitys are set in valve body for achieving the above object, the bulb of being made hollow closed shell structure by Heat Conduction Material is set in the cavity therein, the outside, two ends of bulb connects firmly with valve body, and the inboard and the corrugated tube of an end connect firmly, and the two forms an airtight cavity.Fill an amount of temperature sensing medium in the bulb, temperature sensing medium can be saturated vapour, also can be the thermal expansion material that becomes linear approximate relationship with temperature, the valve body wall face corresponding to the bulb place have the high temperature runner into and out of head piece each one; In another cavity of valve body, with the movable column thin walled cylinder body that connects of valve interior wall, on being separated by two plain lines of 180 °, respectively opens the sleeve circumference through-flow mouthful an of strip, the width that strip is through-flow mouthful is complementary into and out of head piece with the low temperature runner on the valve body is corresponding, the length of through-flow mouthful of opening with fully hold with its axially the spool that cooperates of activity be criterion.Respectively connect firmly a piston rod on the two ends axis of sleeve in the same way, an end of piston rod pushes against the outer face of corrugated tube, and the other end and sleeve end face connect firmly.The other end outside of sleeve pushes against valve body by spring.Second bulb of one middle part undergauge column dumb-bell shape double as spool is set in sleeve inner, the external diameter of second bulb of double as spool connects with sleeve lining is movable, one end of second bulb of double as spool pushes against by spring that sleeve inboard, the other end and corrugated tube are airtight to connect firmly, and the piston rod of sleeve inboard presses on the outer face of corrugated tube.The volume of two bulb equates to be provided with and to inject temperature sensing medium of the same race, equivalent.
The relative sleeve of second bulb of the relative valve body of sleeve, double as spool all can move axially, and the size of rate of travel depends on the temperature difference of flowing through and contacting heating fluid in the bulb outside surface high and low temperature runner separately; Have low temperature water-in and water-out runner on the valve body wall, water inlet flow channel is opened one through-flow mouthful, and its position feature is not blocked with through-flow mouth in the relative valve body motion process of second bulb of sleeve, double as spool and is advisable; The low temperature outlet passage is offered two and arranged side by side is gone out head piece on the valve body, one be measure head piece, another is that difference goes out head piece, its position feature is that two spacings that go out head piece equate with the axial width of the second bulb undergauge of double as spool, second bulb that guarantees sleeve, double as spool is with respect to any time in the valve body motion process, constant, the effective flow area of the flow area sum of two low temperature outlet passages is complementary in real time, it is constant to go out the resistance of head piece liquid, and realization waits liquid choked flow amount difference.
Flow controller based on temperature difference, its principle of work is: the fluid contact of high temperature runner and the bulb of flowing through, with heat transferred bulb outer wall, temperature sensing medium in the bulb moves from saturated vapour air pressure increase of bulb inwall heat absorption back or volumetric expansion pushing corrugated tube, the piston rod that drives the outside moves axially, and produces displacement thereby promote the relative valve body of sleeve; When the fluid temperature (F.T.) of high temperature runner reduced, under the effect of spring thrust between sleeve and valve body, sleeve oppositely moved relative to valve body, till the pushing force and spring thrust balance of bulb to piston.Each temperature spot of fluid has a definite position corresponding to the relative valve body of sleeve in the high temperature runner; The principle of work of low temperature runner is similar to the high temperature runner, and each temperature spot of fluid in the low temperature runner, spool and sleeve also have a relative position of determining, different is when in the low temperature runner during fluid temperature rise, spool relative to sleeve move and direction opposite with sleeve.Because the volume of two bulb equates to be provided with, inner temperature sensing medium homogeneity, equivalent of filling, and the identical setting of structure of two groups of corrugated tubes, piston rod, the displacement that obtains to produce under the condition of same temperature rise two bulb equates, can not produce displacement difference simultaneously at temperature rise value, this displacement difference equals to measure the opening value of head piece just, also is the pass degree value that difference goes out head piece just, and the two is complementary in real time.When the fluid in the high and low temperature runner produces temperature difference, measure head piece and can produce the opening value that becomes equal proportion with temperature gap, be directly proportional with the opening value of self because measure the flow of head piece again, therefore, the size of measurement flow is directly proportional with the temperature difference of fluid in the high and low temperature runner, be the size that the temperature difference decision of fluid in the high and low temperature runner measures flow in the head piece, the temperature difference of fluid is linear in measurement flow and the high and low temperature runner.
What the heat metering was concerned about is the temperature difference of fluid in the high and low temperature runner, but not temperature value, the present invention is based on the flow control apparatus of temperature difference, make poor, the temperature difference and two links of flow accumulation owing to omitted thermometric, simplified the structure of flow controller and heat energy table significantly, under the prerequisite that guarantees the heating metering accuracy requirement, can reduce the manufacturing cost of heat energy table significantly.With the heat energy table that flow controller provided by the invention and hot water gauge combine, economic, practical.
Description of drawings
Fig. 1 is the sectional view based on the flow controller of temperature difference that the present invention proposes.
Embodiment
Details and the working condition that describe that the present invention proposes in detail in conjunction with Fig. 1 based on the flow controller of temperature difference.
Be provided with airtight mutually in the valve body [1], independently first cavity [2] and second cavity [14], in first cavity [2], connect firmly a column first bulb [3] with valve body, first bulb [3] is made hollow structure by Heat Conduction Material, first bulb [3] the one ends outside connects firmly with valve body, inboard and airtight connection of first corrugated tube [5], first bulb [3] is formed airtight the 3rd cavity [26] of a hollow with first corrugated tube [5], fill an amount of saturated vapour temperature sensing medium or thermal expansion material in the 3rd cavity [26], offer a high-temperature stream at the upside valve body middle part of first cavity [2] and say head piece [4], a high temperature runner inflow port [25] is offered at downside valve body middle part.Connect a cylindrical sleeve [8] with valve interior wall is movable in second cavity [14], connect firmly first piston bar [7] on the axial line of sleeve [8] one ends, an end of first piston bar [7] pushes against first corrugated tube [5] exterior bottom.The other end of sleeve [8] is inboard to connect firmly with second piston rod [13], pushes against second spring [15] between the outside and valve body [1], second piston rod [13] and the identical setting of first piston bar [7] body.The upside of sleeve [8] is opened a bar shaped first through-flow mouthful of [9], downside and is opened second through-flow mouthful of a bar shaped [23].Offering a low temperature runner inflow port [11], downside at the upside at the valve body [1] of second cavity [14] middle part offers and arranged side by side measures head piece [19] and difference goes out head piece [21], in working order, first through-flow mouthful [9] and low temperature runner inflow port [11] centering of sleeve [8], second through-flow mouthful [23] and low temperature runner measure head piece [19] and difference goes out head piece [21] centering, with the defeated fluid that leads to the low temperature runner.
Inboard movable second bulb [16] that connects a double as spool with sleeve [8], second bulb [16] of double as spool axially middle part undergauge is the column dumbbell-shaped structure, the big footpath of second bulb [16] of double as spool is slidingly connected with the inwall of sleeve [8], the one end inboard and airtight connection of second corrugated tube [17] of second bulb [16] of double as spool, second bulb [16] of double as spool is made hollow structure with Heat Conduction Material such as copper material, and inner the 4th cavity of second bulb [16] of double as spool [20] is filled an amount of saturated vapour temperature sensing medium or thermal expansion material.The outer face of second corrugated tube [17] pushes against an end of second piston rod [13].Push against first spring [24] between the other end outside of second bulb [16] of double as spool and the sleeve [8].First corrugated tube [5], the identical and conllinear setting of second corrugated tube [17] structure, the openend of first corrugated tube [5] and first bulb [3] the airtight connection of openend, the airtight connection of openend of the openend of second corrugated tube [17] and second bulb [16] of double as spool.First bulb [3] and second bulb [16] volume of double as spool equate and fill the saturated vapour temperature sensing medium or the thermal expansion material of equivalent, homogeneity; Difference goes out head piece [21] and the identical setting of through-flow structure that measures head piece [19], arbitrary moment in working order, constant, the effective flow area complementation of the flow area sum of the two, low temperature runner inflow port is not blocked, and measures head piece [19] and difference and goes out head piece liquid choked flow amount difference such as [21].First sealing strip [10], second sealing strip [12], the 3rd sealing strip [18], the 4th sealing strip [22] are that second bulb [16] of sleeve [8] and double as spool is when being assembled in the valve body [1], subsidy plays the radial seal effect on second bulb [16] outside surface of double as spool and be slidingly connected in first through-flow mouthful [9], second through-flow mouthful [23].Sleeve [8] the relative sleeve [8] of second bulb [16] of valve body [1], double as spool relatively all can move axially.
The fluid of high temperature runner is given first bulb [3] with the thermal energy transfer of temperature spot correspondence, air pressure or pressure increase behind the temperature sensing medium absorption heat in the 3rd cavity [26], promote first corrugated tube [5] and first piston bar [7] disjunctor sleeve [8] relatively valve body [1] move to right, until with the bounce balance of second spring [15] till.Each relative position of determining of sleeve [8] and valve body [1] is all corresponding to definite temperature spot of fluid in the high temperature runner, and temperature spot changes, relative position also has definite respective change; Fluid in the low temperature runner is given the thermal energy transfer of temperature spot correspondence second bulb [16] of double as spool, air pressure or pressure increased after temperature sensing medium in second bulb [16] of double as spool was heated, push second corrugated tube [17] and second piston rod [13], second bulb [16] of double as spool is subjected to the promotion of reacting force and moves to left, until with the bounce balance of first spring [24] till, in this process, second bulb [16] of double as spool sleeve [8] relatively obtains a definite position, this relative position of determining is corresponding to a definite temperature spot of fluid in the low temperature runner, and temperature spot changes, second bulb [16] of double as spool is the also respective change thereupon of relative position of sleeve [8] relatively.The absolute value of the absolute value of sleeve [8], valve body [1] relative displacement and second bulb [16] of double as spool, sleeve [8] relative displacement poor, just equal to measure the opening value of head piece [19], this opening value is directly proportional with the temperature difference of fluid in the high and low temperature runner, temperature difference increases, the opening value equal proportion increases, and measures the also equal proportion increase of flow in the head piece; Situation is opposite, and when temperature difference reduced, the opening value equal proportion reduced, and measurement flow also equal proportion reduces.The axial width value of second bulb [16] of double as spool middle part undergauge and two of low temperature runners go out head piece and promptly measure the axial spacing value that head piece [19], difference go out head piece [21] and equate setting, when the temperature difference of high and low temperature runner fluid is 0 ℃, the axial dimension border of second bulb [16] of double as spool middle part undergauge just and two of low temperature runner go out head piece and promptly measure the homonymy size boundary alignment that head piece [19], difference go out head piece [21], measure the identical setting of the through-flow structure of full gate that head piece [19], difference go out head piece [21].When arbitrary duty, measuring head piece [19], difference, to go out the flow area sum of head piece [21] constant, and the two effective flow area complementation realizes that cryogenic flow says liquid choked flow amount difference such as head piece.
Claims (1)
1. flow controller based on temperature difference, airtight mutually, independently first cavity [2] and second cavity [14] are set in valve body [1], open a high-temperature stream at first cavity [2] upside valve body wall and say that head piece [4] communicates with the external world, downside valve body wall is opened a high temperature runner inflow port [25] and communicated with the external world; Open a low temperature runner inflow port [11] at the upside valve body wall of second cavity [14] and communicate with the external world, downside valve body wall is opened two cryogenic flows and is said head piece, and promptly difference goes out head piece [21] and measures head piece [19]; First bulb [3] is set in first cavity [2], second bulb [16] of one double as spool is set in second cavity [14], it is characterized in that upside has the hollow columnar sleeve [8] that first through-flow mouthful [9], downside have second through-flow mouthful [23] and connects with the inwall of valve body [1] is movable, second bulb [16] of double as spool connects with the activity of the internal face of sleeve [8]; Second bulb [16] volume of first bulb [3] and double as spool equates to be provided with, and each fills the temperature sensing medium of homogeneity, equivalent; First corrugated tube [5], the identical setting of second corrugated tube [17] structure, the openend of first corrugated tube [5] and first bulb [3] the airtight connection of openend, the airtight connection of openend of the openend of second corrugated tube [17] and second bulb [16] of double as spool; First piston bar [7], the identical setting of second piston rod [13] body, first piston bar [7] connects firmly with the coaxial conllinear in an outer end of sleeve [8], and second piston rod [13] connects firmly with another the inner of sleeve [8]; Low temperature runner difference goes out head piece [21], measure head piece [19] axial spacing equates setting with the axial width of second bulb [16] the middle part undergauge of double as spool, and when the temperature difference of fluid was 0 ℃ in the high and low temperature runner, it was that difference goes out head piece [21], measures head piece [19] homonymy size boundary alignment that the size border of second bulb [16] the diameter shrinkage part axial width of double as spool and two go out head piece; Difference goes out head piece [21] and measures the identical setting of the two through-flow section structure of head piece [19], in normal operation, sleeve [8] relatively absolute value and the difference of the absolute value of the relative sleeve of second bulb [16] [8] displacement of double as spool of valve body [1] displacement equals to measure the opening value of head piece [19], difference goes out head piece [21] and to measure head piece [19] flow area sum constant, the effective flow area of the two is complementary in real time, and it is that difference goes out head piece [21], measures liquid choked flow amount difference such as head piece [19] realization that two of low temperature runners go out head piece; The temperature gap that measures fluid in head piece flow size and the high and low temperature runner is linear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100104279A CN101498941B (en) | 2009-02-19 | 2009-02-19 | Flow controller based on temperature gradient |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100104279A CN101498941B (en) | 2009-02-19 | 2009-02-19 | Flow controller based on temperature gradient |
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| Publication Number | Publication Date |
|---|---|
| CN101498941A CN101498941A (en) | 2009-08-05 |
| CN101498941B true CN101498941B (en) | 2011-05-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009100104279A Expired - Fee Related CN101498941B (en) | 2009-02-19 | 2009-02-19 | Flow controller based on temperature gradient |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106246330B (en) * | 2016-08-24 | 2019-01-22 | 北京汽车研究总院有限公司 | A kind of cooling system, control valve and automobile |
| CN107559175B (en) * | 2017-10-20 | 2023-03-28 | 福建雪人股份有限公司 | Automatic freezing oil quantity adjusting device |
| CN108644888A (en) * | 2018-05-16 | 2018-10-12 | 廊坊华宇天创能源设备有限公司 | Heating temperature regulating device, heating system and heating temperature adjusting method |
| CN110699747A (en) * | 2019-11-27 | 2020-01-17 | 湖南大合新材料有限公司 | Single crystal furnace |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87211313U (en) * | 1987-10-22 | 1988-09-14 | 陈喜文 | Temp. sensitive flow self controlled valve |
| WO2007085257A1 (en) * | 2006-01-27 | 2007-08-02 | Danfoss A/S | Valve assembly for connecting a heat exchanger of a hot water discharging device to a district heating system |
-
2009
- 2009-02-19 CN CN2009100104279A patent/CN101498941B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87211313U (en) * | 1987-10-22 | 1988-09-14 | 陈喜文 | Temp. sensitive flow self controlled valve |
| WO2007085257A1 (en) * | 2006-01-27 | 2007-08-02 | Danfoss A/S | Valve assembly for connecting a heat exchanger of a hot water discharging device to a district heating system |
Non-Patent Citations (3)
| Title |
|---|
| JP平11-211287A 1999.08.06 |
| 侯长来.一种应用于采暖供热系统的流体温差传感器的设计.中国计量.2005,2005(2),53-54. * |
| 侯长来.流体温差传感器设计及其应用.现代机械.2005,2005(2),68-69. * |
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| CN101498941A (en) | 2009-08-05 |
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Granted publication date: 20110518 Termination date: 20120219 |