CN201138216Y - Detection device for steam bidirectional flowing in steam lead - Google Patents
Detection device for steam bidirectional flowing in steam lead Download PDFInfo
- Publication number
- CN201138216Y CN201138216Y CNU2007203104351U CN200720310435U CN201138216Y CN 201138216 Y CN201138216 Y CN 201138216Y CN U2007203104351 U CNU2007203104351 U CN U2007203104351U CN 200720310435 U CN200720310435 U CN 200720310435U CN 201138216 Y CN201138216 Y CN 201138216Y
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Abstract
The utility model discloses a detection device for steam bidirectional flow in a steam conduit, which consists of a fluid temperature measuring device, a fluid differential pressure measuring device, a static pressure measuring device and an integrating instrument for counting positive and reverse flow according to the signals provided by the measuring devices. In the utility model, a probe is used as a flow measuring sensor double differential pressure transmitters, double pressure transmitters, and double core integrated temperature transmitters for measuring the differential pressure, the pressure and the temperature respectively. The six signals from the six transmitters are input to an SCM, thus constituting a flow calculation instrument. The flow calculation instrument calculates the flow equation of the probe on one hand, and compensates pressure and temperature for superheated steam on the other hand, thus improving the accuracy of measurement. A dual-digital meter is used to display such parameters as the differential pressure, the pressure, the temperature, the instantaneous flow rate, and the cumulative flow of the bidirectional flow. In this way, a measuring mechanism can measure the quantity of the incoming fluid and the quantity of the outgoing fluid.
Description
Technical field
The utility model relates to the energy measurement equipment of jet chimney, especially a kind of steam lead steam flow two-way flow pick-up unit.
Background technology
Existing flow measurement of steam device mostly adopts restriction device such as orifice plate etc., because the pressure loss of orifice plate in pipeline is bigger, makes the corresponding increase of total system energy consumption.In addition, because orifice flowmeter (below 30%) measuring accuracy when low discharge is very poor, user's submeter is not counted often at low discharge, causes the flow sum total of each submeter very big with steam supply summary table counting difference, nearly 15% error.And the existing flow measurement of steam device quantity of steam that flows in the other direction of energy measurement not, when reverse flow during greater than the forward flow, the scale of existing flow measurement of steam device is shown as zero.(this phenomenon has more summer now) this also can cause the steam measurement error bigger.
The utility model content
The purpose of this utility model is to provide a kind of steam lead steam flow two-way flow pick-up unit of measurable bidirectional traffics.
The technical solution of the utility model is: a kind of steam lead steam flow two-way flow pick-up unit is to constitute by fluid temperature (F.T.) measurement mechanism, differential fluid pressure measurement apparatus, static pressure measurement and according to the integrating instrument that the signal that above measurement mechanism provided carries out forward and reverse flow rate calculation; Described integrating instrument comprises positive and negative flow accumulation instrument, and described fluid temperature (F.T.) measurement mechanism is the twin-core temperature-sensitive transmitter that is installed on the pipeline point for measuring temperature, and twin-core temperature-sensitive transmitter has two output branch roads and inserts positive and negative flow totalizer respectively; Described differential fluid pressure measurement apparatus comprises the probe and the forward and reverse pressure difference transmitter that can insert the jet chimney center, have on the probe positive and negative pressure hole align respectively the pipeline inner fluid incoming flow, remove flow path direction, two pressure tappings of forward pressure difference transmitter just are being connected on the positive and negative pressure mouth of probe, probe on, oppositely two pressure tappings reversal connections of pressure difference transmitter are on the positive and negative pressure mouth of probe, and the signal output part of forward and reverse pressure difference transmitter inserts forward and reverse flow totalizer respectively.
Pipeline between the pressure tappings of the positive and negative pressure hole of described probe and forward and reverse pressure difference transmitter is provided with positive pressure cutoff valve and condenser.
The positive and negative flow accumulation instrument of described integrating instrument is by monolithic processor controlled integrating instrument.
The utility model utilizes probe as flow measuring sensor, cooperate two differential pressure transmitters, two pressure units, the twin-core integrative temperature transmitter is not measured fluid differential pressure, pressure, temperature is introduced single-chip microcomputer to these six signals simultaneously and is constituted the flow rate calculation instrument, and the flow equation to probe resolves on the one hand, on the one hand superheated vapor is carried out the pressure and temp compensation again, improving measuring accuracy, and demonstrate bidirectional fluid differential pressure, pressure respectively with the even numbers word table, temperature, instantaneous delivery, parameters such as integrated flux have realized a cover measuring mechanism bidirectional measurement turnover amount.After the utility model replaces original orifice-plate flowmeter, can reduce the ductwork pressure loss and cut down the consumption of energy, calculate the total system fractional energy savings through contrast and reach 3.4%.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
As shown in Figure 1, pick-up unit of the present utility model be by fluid temperature (F.T.) measurement mechanism, differential fluid pressure measurement apparatus, static pressure measurement and according to the signal that above measurement mechanism provided carry out forward and reverse flow rate calculation by monolithic processor controlled integrating instrument.Described integrating instrument is that positive and negative flow accumulation instrument 6,7 constitutes.
Described differential fluid pressure measurement apparatus comprises the probe 10 and the forward and reverse pressure difference transmitter that can insert the jet chimney center, has the positive and negative pressure hole on the probe of probe 10, the positive and negative pressure hole align respectively the pipeline inner fluid incoming flow, remove flow path direction, the malleation hole communicates with forward voltage diode 14, negative pressure hole communicates with negative pressure pipe 15, be provided with positive pressure cutoff valve 9 and condenser 11 between forward voltage diode 14 and the malleation hole, be provided with negative-pressure stop valve 8 and condenser 12 between negative pressure pipe 15 and the negative pressure hole.The positive and negative pressure tappings correspondence of forward pressure difference transmitter 5 accesses forward voltage diode 14, negative pressure pipe 15, is measured as the forward vapour survey; Oppositely the pressure tappings correspondence of ending, bear of pressure difference transmitter 4 accesses negative pressure pipe 15, forward voltage diode 14, is measured as reverse vapour survey; The signal output part of forward and reverse pressure difference transmitter 5,4 inserts forward and reverse flow totalizer 6,7 respectively.
Described fluid temperature (F.T.) measurement mechanism is that a twin-core temperature-sensitive transmitter 1 is installed on the point for measuring temperature in pipeline, and twin-core temperature-sensitive transmitter 1 has two output branch roads and inserts forward and reverse flow totalizer 6,7 respectively.
Static pressure measurement is two pressure units 2,3 that are connected on the same negative pressure pressure pipeline, the output terminal of pressure unit 2,3 inserts forward and reverse flow totalizer 6,7 respectively, flow no matter the steam in the steam pipe 13 is forward and reverse, the static pressure of negative pressure pressure pipeline is the same, the static pressure numerical value that pressure unit 2,3 is obtained be used for compensating steam forward and reverse when mobile the variation of pressure align, the influence of reverse flow integrator 6,7.
The utility model is when work, forward and reverse pressure difference transmitter 5,4 is measured the forward and reverse fluid pressure difference value of jet chimney, two pressure units 2,3 provide the static pressure value, twin-core temperature-sensitive transmitter 1 is measured the temperature value of jet chimney, and these six signals are introduced monolithic processor controlled positive and negative flow accumulation instrument 6,7 simultaneously.Positive and negative flow integrator 6,7 resolves the flow equation of probe on the one hand, on the other hand superheated vapor is carried out pressure, Temperature numerical compensation, to improve measuring accuracy, and on integrating instrument, demonstrate bidirectional fluid pressure reduction respectively with the even numbers word table, pressure, temperature, instantaneous delivery, parameters such as integrated flux.
Claims (3)
1, a kind of steam lead steam flow two-way flow pick-up unit, its spy is: be to constitute by fluid temperature (F.T.) measurement mechanism, differential fluid pressure measurement apparatus, static pressure measurement and according to the integrating instrument that the signal that above measurement mechanism provided carries out forward and reverse flow rate calculation; Described integrating instrument comprises positive and negative flow accumulation instrument, and described fluid temperature (F.T.) measurement mechanism is the twin-core temperature-sensitive transmitter that is installed on the pipeline point for measuring temperature, and twin-core temperature-sensitive transmitter has two output branch roads and inserts positive and negative flow totalizer respectively; Described differential fluid pressure measurement apparatus comprises the probe and the forward and reverse pressure difference transmitter that can insert the jet chimney center, have on the probe positive and negative pressure hole align respectively the pipeline inner fluid incoming flow, remove flow path direction, two pressure tappings of forward pressure difference transmitter just are being connected on the positive and negative pressure mouth of probe, probe on, oppositely two pressure tappings reversal connections of pressure difference transmitter are on the positive and negative pressure mouth of probe, and the signal output part of forward and reverse pressure difference transmitter inserts forward and reverse flow totalizer respectively.
2, steam lead steam flow two-way flow pick-up unit according to claim 1, its spy is: the pipeline between the pressure tappings of the positive and negative pressure hole of described probe and forward and reverse pressure difference transmitter is provided with positive pressure cutoff valve and condenser.
3, according to claim 1 or 2 or described steam lead steam flow two-way flow pick-up unit, its spy is: the positive and negative flow accumulation instrument of described integrating instrument is by monolithic processor controlled integrating instrument.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007203104351U CN201138216Y (en) | 2007-12-11 | 2007-12-11 | Detection device for steam bidirectional flowing in steam lead |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007203104351U CN201138216Y (en) | 2007-12-11 | 2007-12-11 | Detection device for steam bidirectional flowing in steam lead |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201138216Y true CN201138216Y (en) | 2008-10-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007203104351U Expired - Fee Related CN201138216Y (en) | 2007-12-11 | 2007-12-11 | Detection device for steam bidirectional flowing in steam lead |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201138216Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105068565A (en) * | 2008-10-27 | 2015-11-18 | 罗斯蒙德公司 | Multivariable fluid flow measurement device with fast response flow calculation |
| CN106768096A (en) * | 2016-12-09 | 2017-05-31 | 毕托巴（上海）科技有限公司 | Pitot bar type double flow meter |
| CN116929469A (en) * | 2023-09-18 | 2023-10-24 | 四川蜀谷仪表科技有限公司 | Differential pressure flowmeter high-low pressure conversion method and differential pressure flowmeter flow measuring method |
-
2007
- 2007-12-11 CN CNU2007203104351U patent/CN201138216Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105068565A (en) * | 2008-10-27 | 2015-11-18 | 罗斯蒙德公司 | Multivariable fluid flow measurement device with fast response flow calculation |
| CN106768096A (en) * | 2016-12-09 | 2017-05-31 | 毕托巴（上海）科技有限公司 | Pitot bar type double flow meter |
| CN116929469A (en) * | 2023-09-18 | 2023-10-24 | 四川蜀谷仪表科技有限公司 | Differential pressure flowmeter high-low pressure conversion method and differential pressure flowmeter flow measuring method |
| CN116929469B (en) * | 2023-09-18 | 2024-01-30 | 四川蜀谷仪表科技有限公司 | Differential pressure flowmeter high-low pressure conversion method and differential pressure flowmeter flow measuring method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081022 Termination date: 20121211 |