CN106332322B - Determine outlet temperature, pressure-type full-liquid type heater - Google Patents
Determine outlet temperature, pressure-type full-liquid type heater Download PDFInfo
- Publication number
- CN106332322B CN106332322B CN201610729790.6A CN201610729790A CN106332322B CN 106332322 B CN106332322 B CN 106332322B CN 201610729790 A CN201610729790 A CN 201610729790A CN 106332322 B CN106332322 B CN 106332322B
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- heater
- pressure
- working medium
- electric heating
- heating wire
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B1/00—Details of electric heating devices
- H05B1/02—Automatic switching arrangements specially adapted to apparatus ; Control of heating devices
- H05B1/0227—Applications
- H05B1/0297—Heating of fluids for non specified applications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/02—Details
Landscapes
- Resistance Heating (AREA)
- Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
Abstract
Outlet temperature, pressure-type full-liquid type heater are determined the present invention relates to a kind of, are welded with baffle inside heater housings, are facilitated the fluid thermally equivalent into heater；It is cased with molecular sieve outside electric heating wire, prevents electric heating wire because residue when localized hyperthermia bursts enters heating working medium, influences system operation；Electric heating wire is threadedly coupled with heater housings using flange, and the replacement of different capacity electric heating wire is facilitated.When heating working medium flows through heater, electric heating wire is fully immersed in heating working medium, and to realize that electric energy is completely converted into energy in fluid, electric expansion valve is for being adjusted the pressure of heater outlet fluid, to reach required setting value.When the invention reside in heating to working medium, can not only realize the complete conversion in shell between heat, while realize and the pressure of working medium at heater outlet is adjusted, for working medium in a particular state temperature, pressure value precision controlling possibility is provided.
Description
Technical field
The present invention relates to a kind of refrigeration system for industries such as new energy, petrochemical industry, sea water desalinations, especially one
Full-liquid type electric heater in kind refrigeration system is, it can be achieved that precision control of the working medium under specific operation to temperature, pressure and other parameters
System.
Background technique
In the technical field for being respectively related to heat exchange, electric heater has become indispensable equipment, is mainly used for convection current
Dynamic liquid, gaseous medium are heated up, are heated, when heating working medium passes through electric heater heating chamber under pressure
When, generated huge heat in heating element work is equably taken away using thermodynamic fluid principle, reaches setting
Temperature case requirement.But common electric heater is only that heater strip is wound outside pipe, changes heating function by adjusting input voltage
Rate and then adjusting working medium heating amount, it is contemplated that the factors such as radiation, convection current, thermally conductive, this heating means make nothing but heating amount
It is completely converted into energy in working medium, is extremely difficult to qualified thermal balance effect, and then influence the control precision to working medium state.
Summary of the invention
The present invention be to provide for it is a kind of determine outlet temperature, pressure-type full-liquid type heater, for complete to power pressure, temperature
The high-precision control of the state parameters such as degree guarantees that electric heating wire is completely immersed in working medium, according to work when working medium flows through heater
Matter imports and exports state energy difference and adjusts heating amount, and the heating amount of electric heating wire can realize automatic adjustment, to meet variation work
The stability of temperature parameter under condition carries out pressure adjusting, dual consideration and then completion to exit working medium using electric expansion valve
High-precision control to working medium temperature, pressure value under specific operation.
The technical solution of the present invention is as follows: a kind of determine outlet temperature, pressure-type full-liquid type heater, including heater housings,
Electric heating wire, mass flowmenter, electric expansion valve and the platinum resistance for measuring temperature, pressure parameter, pressure transmitter, institute
It states and is welded with baffle inside heater housings, facilitate the fluid thermally equivalent into heater；It is cased with outside the electric heating wire point
Son sieve, prevents electric heating wire because residue when localized hyperthermia bursts enters heating working medium, influences system operation；The electricity adds
Heated filament is threadedly coupled with heater housings using flange, and the replacement of different capacity electric heating wire is facilitated；The import of the heater
By pipeline quality of connection flowmeter, outlet end connects electric expansion valve by pipeline at end.
When heating working medium flows through heater, the electric heating wire is fully immersed in heating working medium, to realize that electric energy is complete
Be converted to energy in fluid.
The electric expansion valve is for being adjusted the pressure of heater outlet fluid, to reach required setting
Value.
The platinum resistance of measurement temperature and the pressure of measurement pressure parameter are equipped on the pipeline into and out of end of the heater
Transmitter, according to working medium flow measured by enthalpy determined by working medium entrance temperature, pressure parameter, mass flowmenter and
It needs to reach state at sender property outlet and corresponds to enthalpy and determine electric heating wire heating power, according to the practical outlet pressure of working medium and required
The difference of setting pressure determines electronic expansion valve opening, realizes the control to power pressure.
The beneficial effects of the present invention are: when working medium flows through heater, not only realizes in shell and turn completely between heat
It changes, also achieves and the pressure of working medium at heater outlet is adjusted, and then be the height of working medium temperature, pressure value under specific operation
Precision controlling provides may.In addition to this, the configuration of the present invention is simple, main junction are all made of threaded connection, significantly easy
Manufacture, installation process.
Detailed description of the invention
Fig. 1 is the structural schematic diagram that the present invention determines outlet temperature, pressure-type full-liquid type heater.
Specific embodiment
The present invention is further illustrated with implementation with reference to the accompanying drawing.
As shown in Figure 1, of the invention determines outlet temperature, pressure-type full-liquid type heater, comprising: heater housings 1, electricity add
Heated filament 2, mass flowmenter 6, electric expansion valve 5, baffle 4, molecular sieve 3, safety valve 7, and platinum resistance for measuring temperature,
Measure the pressure transmitter of pressure parameter.Wherein heater housings 1 are cylindrical structure, pass through flanged joint with electric heating wire 2,
It arranges the baffle that can make working medium thermally equivalent respectively inside heater housings 1 and prevents and treats the molecular sieve 3 that residue enters working medium,
Safety valve 7 is housed at the top of heater housings 1, prevents enclosure interior hypertonia from influencing working medium heating.The input end of heater
By pipeline quality of connection flowmeter, outlet end connects electric expansion valve 5 by pipeline.On the pipeline into and out of end of heater
It is equipped with the platinum resistance of measurement temperature and the pressure transmitter of measurement pressure parameter.According to working medium entrance temperature, pressure parameter
It needs to reach state at working medium flow measured by identified enthalpy, mass flowmenter and sender property outlet and corresponds to enthalpy and determine
Electric heating wire heating power determines electronic expansion valve opening according to the difference of the practical outlet pressure of working medium and required setting pressure,
Realize the control to power pressure.
Pressure, temperature parameter measurement acquisition instrument explanation:
P1, T1: measurement entrance Temperature of Working, pressure value；
P3: pressure when heating carries out inside HEATER FOR MEASURING；
P2, T2: measurement exit Temperature of Working, pressure value；
P4: the power pressure value after measurement throttling.
When heater practical application, working medium keeps supercooled state in heater inlet, checks in work according to P1, T1 measurement parameter
Matter import enthalpy, according to the two degree of coherence values required at sender property outlet, pressure P2, temperature T2 is determined and is exported enthalpy, and working medium exists
The working medium flow value that the enthalpy difference of inlet and outlet is measured multiplied by mass flowmenter is the heating function that will be set to electric heating wire 3
Rate.If working medium is in two phases at heater outlet, meet in the observed pressure of each pressure transmitter: P2=P3.Heating
Device setting pressure can measure P4 by the pressure transmitter of power pressure after measurement throttling, and it is swollen to adjust electronics according to the difference of P3, P4
Swollen 5 aperture of valve, until measuring pressure P4 and being pressure set points.
The present invention utilizes product self-characteristic, and so that electric heating amount is completely converted into energy, electric expansion valve in working medium can realize
Adjusting to exit pressure levels, both cocoa meets the precision controlling to discharge state point temperature, pressure parameter.
Claims (4)
1. a kind of determine outlet temperature, pressure-type full-liquid type heater, including heater housings (1), electric heating wire (2), quality stream
The pressure transmitter of meter (6), electric expansion valve (5) and platinum resistance, measurement pressure parameter for measuring temperature, feature
It is: is welded with baffle (4) inside the heater housings (1), facilitates the fluid thermally equivalent into heater；The electric heating
Molecular sieve (3) are cased with outside silk (2), prevent electric heating wire from entering heating working medium, shadow because of residue when localized hyperthermia bursts
Acoustic system operation；The electric heating wire (2) is threadedly coupled with heater housings (1) using flange, and different capacity electric heating is facilitated
The replacement of silk；For the input end of the heater by pipeline quality of connection flowmeter (6), outlet end is swollen by pipeline connection electronics
Swollen valve (5).
2. according to claim 1 determine outlet temperature, pressure-type full-liquid type heater, it is characterised in that: heater mass flow
When heated device, the electric heating wire (2) is fully immersed in heating working medium, to realize that electric energy is completely converted into energy in fluid.
3. according to claim 1 determine outlet temperature, pressure-type full-liquid type heater, it is characterised in that: the electronics is swollen
Swollen valve (5) is for being adjusted the pressure of heater outlet fluid, to reach required setting value.
4. according to claim 1-3 determine outlet temperature, pressure-type full-liquid type heater, it is characterised in that: institute
State the pressure transmitter of the platinum resistance that measurement temperature is equipped on the pipeline into and out of end of heater and measurement pressure parameter, root
According to working medium flow and sender property outlet measured by enthalpy determined by working medium entrance temperature, pressure parameter, mass flowmenter
Place, which need to reach state and correspond to enthalpy, determines electric heating wire heating power, according to the practical outlet pressure of working medium and required setting pressure
Difference determine electronic expansion valve opening, realize the control to power pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610729790.6A CN106332322B (en) | 2016-08-26 | 2016-08-26 | Determine outlet temperature, pressure-type full-liquid type heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610729790.6A CN106332322B (en) | 2016-08-26 | 2016-08-26 | Determine outlet temperature, pressure-type full-liquid type heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106332322A CN106332322A (en) | 2017-01-11 |
| CN106332322B true CN106332322B (en) | 2019-04-16 |
Family
ID=57790991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610729790.6A Active CN106332322B (en) | 2016-08-26 | 2016-08-26 | Determine outlet temperature, pressure-type full-liquid type heater |
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| Country | Link |
|---|---|
| CN (1) | CN106332322B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201222041Y (en) * | 2008-06-02 | 2009-04-15 | 昆明理工大学 | Apparatus for measuring forced convection heat-exchange coefficient in fluid tube |
| CN202261848U (en) * | 2011-10-21 | 2012-05-30 | 河南鸿昌电子有限公司 | Heater |
-
2016
- 2016-08-26 CN CN201610729790.6A patent/CN106332322B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201222041Y (en) * | 2008-06-02 | 2009-04-15 | 昆明理工大学 | Apparatus for measuring forced convection heat-exchange coefficient in fluid tube |
| CN202261848U (en) * | 2011-10-21 | 2012-05-30 | 河南鸿昌电子有限公司 | Heater |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106332322A (en) | 2017-01-11 |
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