CN209495787U - A kind of distributed temperature measuring device for soil source heat pump - Google Patents
A kind of distributed temperature measuring device for soil source heat pump Download PDFInfo
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- CN209495787U CN209495787U CN201822264209.5U CN201822264209U CN209495787U CN 209495787 U CN209495787 U CN 209495787U CN 201822264209 U CN201822264209 U CN 201822264209U CN 209495787 U CN209495787 U CN 209495787U
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Abstract
The utility model relates to a kind of distributed temperature measuring devices for soil source heat pump, including distributed optical fiber temperature measurement unit, distributed optical fiber temperature measurement unit includes laser light source, glistening light of waves multiplexer, photoelectric converter and computer processor, laser light source is configured with optical fiber, optical fiber passes through underground well pipeline laying in the soil, laser light source for injecting laser pulse in a fiber, optical fiber connects glistening light of waves multiplexer, and glistening light of waves multiplexer is used to the Backward Raman scattering light that optical fiber returns being separated into stokes light and anti-Stokes light；Glistening light of waves multiplexer connects photoelectric converter, photoelectric converter is used to stokes light and anti-Stokes light that glistening light of waves multiplexer separates being converted to electric signal, photoelectric converter connects computer processor, and computer processor is used to be analyzed to obtain the continuous temperature on fiber lengths to the electric signal that photoelectric converter is converted.Quantification stability is high, test is uniform, wiring is not interfered by extraneous factor simply, is suitably applied in soil source heat pump.
Description
Technical field
The utility model relates to a kind of distributed temperature measuring devices for soil source heat pump, are related to soil thermometry neck
Domain.
Background technique
Soil source heat pump is using the metastable characteristic of underground normal temperature soils temperature, by buried around building
Pipe-line system and interior of building complete the device of heat exchange.Winter takes heat from soil, heats to building；Summer is to soil
Heat extraction is architecture refrigerating.It is using soil as heat source, cold source, by high-efficiency heat pump unit to space heating or cooling supply.
Soil source heat pump system is generally using the monitoring soil moisture variation of a small amount of temperature sensor, as adjustment heat pump unit
With auxiliary heat balance device runing time strategy foundation.But conventional temperature sensor is easy to aging, data precision is poor, it is not easy to apply
Work, and a sensor only can measure the temperature of a point, and the information content obtained is very little, is difficult to grasp inside entire soil
The variation in temperature field.
Utility model content
The utility model aim is to provide a kind of distributed temperature measuring device for soil source heat pump, temperature measurement stabilization
Property high, test uniformly, wiring is simple, the features such as not interfered by extraneous factor, be suitably applied in soil source heat pump.
The technical solution that the utility model solves above-mentioned technical problem is as follows: a kind of distribution survey for soil source heat pump
Warm device, the temperature measuring equipment include distributed optical fiber temperature measurement unit, the distributed optical fiber temperature measurement unit include laser light source,
Glistening light of waves multiplexer, photoelectric converter and computer processor, the laser light source are configured with optical fiber, and the optical fiber passes through underground well
In the soil, for laser light source for injecting laser pulse in the optical fiber, it is multiple that the optical fiber connects the glistening light of waves for pipeline laying
With device, glistening light of waves multiplexer is used to the Backward Raman scattering light that the optical fiber returns being separated into stokes light and anti-Stokes
Light；The glistening light of waves multiplexer connects the photoelectric converter, and photoelectric converter is used for the Stokes for separating glistening light of waves multiplexer
Light and anti-Stokes light are converted to electric signal, and the photoelectric converter connects the computer processor, computer processor
Electric signal for converting to the photoelectric converter is analyzed to obtain the continuous temperature on the fiber lengths.
As the preferred embodiment of the distributed temperature measuring device for soil source heat pump, the optical fiber includes fibre core, the fibre
Core periphery is enclosed with glass-clad, and the glass-clad periphery is enclosed with screwed pipe, and the screwed pipe is enclosed with Kevlar, described
Kevlar periphery is enclosed with mesh grid, and the mesh grid periphery is enclosed with sheath.
As the preferred embodiment of the distributed temperature measuring device for soil source heat pump, the screwed pipe and mesh grid are adopted respectively
With stainless steel material, the sheath uses polyvinyl chloride material.Not by electromagnetic interference and broken by lightning, essential safety is explosion-proof, because
This is safer and more reliable, and service life can reach 25 years or more.
As the preferred embodiment of the distributed temperature measuring device for soil source heat pump, the glistening light of waves multiplexer uses 18 channels
1270-1610nm CWDM Coarse Wave Division Multiplexer.Cover all channels of 1270nm-1610nm, channel spacing 20nm.Not
In the case where replacing any equipment, rate may be up to 180Gbps, realizes the economization network of 10G, can reduce the light of glass optical fiber
Loss enhances optical signal and extends transmission distance.
As the preferred embodiment of the distributed temperature measuring device for soil source heat pump, the photoelectric converter is using brilliant
TSC MC210FT-15 single mode photoelectric converter.Support 1/2 10/100M power port, 1 100,000,000 optical port.1 10/100/1000M
Power port, the plurality of specifications such as 1 1000M optical port.Support complete/half-duplex auto-negotiation functionality, high duty metal shell mechanism can
Shield electromagnetic interference and anti-vibration impact resistance, the terminals POWER input of industrialization design, using standard industry guide rail installation side
Formula.The selection of fiber port offer single mode optical fiber and multimode fibre, twisted pair port supporting rate, duplex auto-negotiation function,
Industrialize fan-free design, IP40 degree of protection, standard rail mounting means.
The beneficial effects of the utility model are: temperature measuring equipment includes distributed optical fiber temperature measurement unit, distributed optical fiber temperature measurement
Unit includes laser light source, glistening light of waves multiplexer, photoelectric converter and computer processor, and laser light source is configured with optical fiber, optical fiber
In the soil by underground well pipeline laying, laser light source connects glistening light of waves multiplexing for injecting laser pulse, optical fiber in a fiber
Device, glistening light of waves multiplexer are used to the Backward Raman scattering light that optical fiber returns being separated into stokes light and anti-Stokes light；Wave
Optical multiplexer connects photoelectric converter, and photoelectric converter is used for the stokes light and anti-Stokes for separating glistening light of waves multiplexer
Light is converted to electric signal, and photoelectric converter connects computer processor, what computer processor was used to convert photoelectric converter
Electric signal is analyzed to obtain the continuous temperature on fiber lengths.The characteristic transmitted in a fiber using light wave, can be long along optical fiber
Degree direction, which continuously senses, to be measured, and the temperature change along optical fiber different location is detected.Optical fiber be both sensor information and
Transmission medium.Have the characteristics that temperature measurement stability is high, test is uniform, wiring is not interfered by extraneous factor simply, is suitble to answer
For in soil source heat pump.
Detailed description of the invention
Fig. 1 is the distributed temperature measuring device structural representation for soil source heat pump provided in the utility model embodiment
Figure；
Fig. 2 is the optical fiber structure schematic diagram provided in the utility model embodiment；
Wherein, 1, distributed optical fiber temperature measurement unit；2, laser light source；3, glistening light of waves multiplexer；4, photoelectric converter；5, it calculates
Machine processor；6, optical fiber；7, buried well conduit；8, fibre core；9, glass-clad；10, screwed pipe；11, Kevlar；12, mesh grid；
13, sheath.
Specific embodiment
To keep the above objects, features, and advantages of the utility model more obvious and easy to understand, with reference to the accompanying drawing to this
The specific embodiment of utility model is described in detail.Many details are explained in the following description in order to abundant
Understand the utility model.But the utility model can be implemented with being much different from other way described herein, this field
Technical staff can do similar improvement without prejudice to the utility model connotation, therefore the utility model is not by following public affairs
The limitation for the specific embodiment opened.
Unless otherwise defined, all technical and scientific terms used herein are led with the technology for belonging to the utility model
The normally understood meaning of the technical staff in domain is identical.Term used in the description of the utility model is intended merely to describe
The purpose of specific embodiment, it is not intended that in limitation the utility model.
The technical program is not related to the improvement to method, and the processing analysis of computer processor belongs to the prior art, in addition
The electronic hardware of use can choose mature product of the existing market with same use.
Specifically, as depicted in figs. 1 and 2, providing a kind of distributed temperature measuring device for soil source heat pump, the thermometric
Device includes distributed optical fiber temperature measurement unit 1, the distributed optical fiber temperature measurement unit 1 include laser light source 2, glistening light of waves multiplexer 3,
Photoelectric converter 4 and computer processor 5, the laser light source 2 are configured with optical fiber 6, and the optical fiber 6 passes through buried well conduit 7
In the soil, laser light source 2 connects the glistening light of waves multiplexing for injecting laser pulse, the optical fiber 6 in the optical fiber 6 for laying
Device 3, glistening light of waves multiplexer 3 are used to the Backward Raman scattering light that the optical fiber 6 returns being separated into stokes light and anti-stoke
This light；The glistening light of waves multiplexer 3 connects the photoelectric converter 4, and photoelectric converter 4 is used for this for separating glistening light of waves multiplexer 3
Lentor light and anti-Stokes light are converted to electric signal, and the photoelectric converter 4 connects the computer processor 5, calculate
Machine processor 5 to the electric signal that the photoelectric converter 4 is converted for being analyzed to obtain the continuous temperature in 6 length of optical fiber
Degree.
In one embodiment for the distributed temperature measuring device of soil source heat pump, the optical fiber 6 includes fibre core 8, described
8 periphery of fibre core is enclosed with glass-clad 9, and 9 periphery of glass-clad is enclosed with screwed pipe 10, and the screwed pipe 10 is enclosed with triumphant
Husband draws 11, and 11 periphery of Kevlar is enclosed with mesh grid 12, and 12 periphery of mesh grid is enclosed with sheath 13.The screwed pipe
10 and mesh grid 12 be respectively adopted stainless steel material, the sheath 13 uses polyvinyl chloride material.Not by electromagnetic interference and lightning stroke
Damage, essential safety is explosion-proof, therefore safer and more reliable, and service life can reach 25 years or more.
In one embodiment for the distributed temperature measuring device of soil source heat pump, the glistening light of waves multiplexer 3 is logical using 18
Road 1270-1610nm CWDM Coarse Wave Division Multiplexer.Cover all channels of 1270nm-1610nm, channel spacing 20nm.?
In the case where being changed without any equipment, rate may be up to 180Gbps, realizes the economization network of 10G, can reduce glass optical fiber
Light loss enhances optical signal and extends transmission distance.
In one embodiment for the distributed temperature measuring device of soil source heat pump, the photoelectric converter 4 is using brilliant
TSC MC210FT-15 single mode photoelectric converter.Support 1/2 10/100M power port, 1 100,000,000 optical port.1 10/100/1000M
Power port, the plurality of specifications such as 1 1000M optical port.Support complete/half-duplex auto-negotiation functionality, high duty metal shell mechanism can
Shield electromagnetic interference and anti-vibration impact resistance, the terminals POWER input of industrialization design, using standard industry guide rail installation side
Formula.The selection of fiber port offer single mode optical fiber and multimode fibre, twisted pair port supporting rate, duplex auto-negotiation function,
Industrialize fan-free design, IP40 degree of protection, standard rail mounting means.
The principle of the present embodiment technical solution is, when injecting the laser pulse of certain energy and width in optical fiber 6, swashs
Light pulse and 6 interaction of molecules of optical fiber, it constantly generates Backward Raman scattering light in optical fiber 6 while onwards transmission, dissipate
There are many penetrating, wherein Raman scattering due to 6 molecule of optical fiber thermal vibration, it can generate a stoke longer than optical source wavelength
This light (Stokes) and an anti-Stokes light (Anti-Stokes) shorter than optical source wavelength, anti-Stokes optical signal
Intensity is related with temperature, and Stokes optical signal is temperature independent.Out of optical fiber 6 the anti-Stokes optical signal at any point and
In the ratio of Stokes light signal strength, the temperature of the available point.Therefore, the Backward Raman scattering returned along optical fiber 6
Light is separated into anti-lentor light and stokes light by light wavelength division multiplexing, converts by photoelectric conversion, amplification, high-speed a/d
After processing, the temperature value of 6 each point of optical fiber can be calculated, meanwhile, according to the transmission speed of light in optical fiber 6 and backward optical echo when
Between 6 temperature-sensitive point of optical fiber can be accurately positioned one by one, thus realize along 6 temperature field of optical fiber distributed temperature measuring.
The parameter configuration of distributed optical fiber temperature measurement unit 1 is as follows:
| Project | Unit | Parameter value | Remarks |
| Temperature measuring distance | km | 4/8/10 | It is optional |
| Temperature-measuring range | ℃ | 60 ﹣ 350 of ﹣ | It is optional according to application field |
| Port number | ﹣ | 4 | It is expansible |
| Temperature measurement accuracy | ℃ | ±1℃@4km | Exact value can be taken according to distance |
| The thermometric response time | s | 3 ﹣ 15s | It is adjustable according to accumulative frequency |
| Spatial resolution | m | ≤1@4km | |
| Positioning accuracy | m | ≤±1℃@4km | |
| Data communication interface | ﹣ | RS232,RJ45 | |
| System host operating temperature | ℃ | 10 ﹣ 50 of ﹣ | |
| Computer input | AC | 180 ﹣ 220V/50 ± 5Hz | |
| Host outer dimension | mm | 490*134*480(3U) |
The temperature measuring equipment of the present embodiment includes distributed optical fiber temperature measurement unit 1, and distributed optical fiber temperature measurement unit 1 includes laser
Light source 2, glistening light of waves multiplexer 3, photoelectric converter 4 and computer processor 5, laser light source 2 are configured with optical fiber 6, and optical fiber 6 passes through
In the soil, laser light source 2 connects glistening light of waves multiplexing for injecting laser pulse, optical fiber 6 in optical fiber 6 for the buried laying of well conduit 7
Device 3, glistening light of waves multiplexer 3 are used to the Backward Raman scattering light that optical fiber 6 returns being separated into stokes light and anti-Stokes light；
Glistening light of waves multiplexer 3 connects photoelectric converter 4, photoelectric converter 4 be used for by the isolated stokes light of glistening light of waves multiplexer 3 and it is anti-this
Lentor light is converted to electric signal, and photoelectric converter 4 connects computer processor 5, and computer processor 5 is used for photoelectric conversion
The electric signal that device 4 is converted is analyzed to obtain the continuous temperature in 6 length of optical fiber.The characteristic transmitted in optical fiber 6 using light wave,
It can continuously sense and be measured along 6 length direction of optical fiber, detect the temperature change along 6 different location of optical fiber.Optical fiber 6 is both
Sensor information is also transmission medium.With temperature measurement stability height, test is uniform, is routed and is not interfered by extraneous factor simply,
The features such as, it is suitably applied in soil source heat pump.An optical fiber 6 can be utilized by the technical program, along monitored object
Thousands of a points are monitored in whole length, surface or spatial dimension.Since acquired temperature data invariably accompanies
Location information, therefore the performance characteristic of testee need not be known in advance, complete temperature distributing curve diagram is provided for,
The temperature-sensing element and all optical fiber of signal transmssion line of the temperature-sensitive system of distributed temperature measuring device simultaneously, without power supply, not by electricity
Magnetic disturbance and broken by lightning, essential safety is explosion-proof, therefore safer and more reliable, and service life can reach 25 years or more.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed,
But it cannot be understood as the limitations to utility model patent range.It should be pointed out that for the common skill of this field
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The protection scope of the utility model.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.
Claims (5)
1. a kind of distributed temperature measuring device for soil source heat pump, which is characterized in that the temperature measuring equipment includes distributed light
Fine temperature measuring unit (1), the distributed optical fiber temperature measurement unit (1) include laser light source (2), glistening light of waves multiplexer (3), photoelectric conversion
Device (4) and computer processor (5), the laser light source (2) are configured with optical fiber (6), and the optical fiber (6) passes through buried well conduit
(7) in the soil, laser light source (2) is used to inject laser pulse in the optical fiber (6) for laying, and the optical fiber (6) connects institute
It states glistening light of waves multiplexer (3), glistening light of waves multiplexer (3) is used to the Backward Raman scattering light that the optical fiber (6) return being separated into Si Tuo
Ke Si light and anti-Stokes light；The glistening light of waves multiplexer (3) connects the photoelectric converter (4), and photoelectric converter (4) is used for
The stokes light of glistening light of waves multiplexer (3) separation and anti-Stokes light are converted into electric signal, the photoelectric converter (4) is even
It connects the computer processor (5), the electric signal that computer processor (5) is used to convert the photoelectric converter (4) carries out
Analysis obtains the continuous temperature in the optical fiber (6) length.
2. a kind of distributed temperature measuring device for soil source heat pump according to claim 1, which is characterized in that the light
Fine (6) include fibre core (8), and fibre core (8) periphery is enclosed with glass-clad (9), and glass-clad (9) periphery is enclosed with spiral shell
Line pipe (10), the screwed pipe (10) are enclosed with Kevlar (11), and Kevlar (11) periphery is enclosed with mesh grid (12), institute
It states mesh grid (12) periphery and is enclosed with sheath (13).
3. a kind of distributed temperature measuring device for soil source heat pump according to claim 2, which is characterized in that the spiral shell
Stainless steel material is respectively adopted in line pipe (10) and mesh grid (12), and the sheath (13) uses polyvinyl chloride material.
4. a kind of distributed temperature measuring device for soil source heat pump according to claim 1, which is characterized in that the wave
Optical multiplexer (3) uses 18 channel 1270-1610nm CWDM Coarse Wave Division Multiplexers.
5. a kind of distributed temperature measuring device for soil source heat pump according to claim 1, which is characterized in that the light
Electric transducer (4) uses brilliance TSC MC210FT-15 single mode photoelectric converter.
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| CN201822264209.5U CN209495787U (en) | 2018-12-31 | 2018-12-31 | A kind of distributed temperature measuring device for soil source heat pump |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111721033A (en) * | 2020-06-03 | 2020-09-29 | 中筑科技股份有限公司 | Distributed heat pump management and control system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111721033A (en) * | 2020-06-03 | 2020-09-29 | 中筑科技股份有限公司 | Distributed heat pump management and control system |
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