CN205562129U - Expansion joint equipment in heat supply pipeline - Google Patents
Expansion joint equipment in heat supply pipeline Download PDFInfo
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- CN205562129U CN205562129U CN201620348318.3U CN201620348318U CN205562129U CN 205562129 U CN205562129 U CN 205562129U CN 201620348318 U CN201620348318 U CN 201620348318U CN 205562129 U CN205562129 U CN 205562129U
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- Prior art keywords
- heat supply
- supply pipeline
- expansion joint
- resistance
- detecting device
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Abstract
The utility model belongs to the technical field of the heat supply, a expansion joint equipment in heat supply pipeline is disclosed, the serial number is provided with a plurality of expansion joints in the heat supply pipeline, the expansion joint equipment include: along parallel two traversal (1) having an insulative sheath of laying of heat supply pipeline, the order is parallelly connected between two traversal (1) has a plurality of control by temperature change group of resistance (2), and a plurality of control by temperature change group of resistance (2) order sets up around a plurality of expansion joints that the heat supply pipeline corresponds, article two, the preceding port of traversal (1) is connected with the measurement input of resistance detector (6), and the resistance data output end of resistance detector (6) is connected with data processor (8), and the demonstration output of data processor (8) is connected with display screen (9). The utility model discloses can detect the operation conditions of all expansion joints on the whole piece heat supply pipeline simultaneously, the practicality is strong, and the maintenance work volume is little and the cost low.
Description
Technical field
The utility model belongs to heat supply process field, particularly relates to expansion joint leak detection in a kind of heat supply pipeline
Device.
Background technology
District heat supply network is that central heating thermal source is to heat user conveying and the pipeline system of distribution heating medium
System.Direct-burried heating network is the principal mode that heat supply network lays, generally by pipeline, expansion joint, valve, heat exchange
Device forms.Expansion joint, due to the effect expanded with heat and contract with cold, is the position being easiest to occur leakage in heat supply network.One
Denier generation serious leak, will cause city on a large scale for thermal break.According to statistics, North City is often sent out winter
Raw underground pipe network damages, because of expansion joint, the leakage accident caused, and brings to people's lives and has a strong impact on.Therefore,
Being necessary to set up effective underground heating network expansion joint damage monitoring system, on-line tracing monitoring is measured and is expanded
Joint operational factor, assesses its duty, it is ensured that the safe operation of heating network, also is able to avoid more simultaneously
Change the blindness of expansion joint.
Existing about heating network expansion joint damage on-line monitoring technique, main research is as follows:
Number of patent application is: 201320867479.X, and patent name is: a kind of heat supply based on optical fiber technology
The real-time monitoring system of pipeline leakage situation.Wherein, high temperature water supply line and low-temperature return water pipeline are parallel to each other
Be embedded in underground piping groove, between two pipelines, be embedded with sandy soil；In the sandy soil that two pipelines are along the line
It is provided with monitoring optical cable, monitoring optical cable and distributed temperature sensor (DTS main frame) to connect, distributed temperature
Sensor is connected to monitoring host computer by communications optical cable, and monitoring host computer is connected in central authorities' control by LAN
The heart, CCC is then connected communication by internet with Terminal Server Client.Pass through distributed temperature sensing
The temperature change of the outer sandy soil of device detection pipeline judges whether pipe leakage occur, and which has construction and dimension
Protect conveniently, monitoring distance length and the feature of applied range, but whole detecting system somewhat expensive.
Number of patent application is: 201420637710.0, and patent name is: prefabricated direct-buried thermal insulation pipe alarming line is supervised
Control device.Wherein, between pipe fitting, it is provided with alarm signal at prefabricated direct-buried thermal insulation pipe and transmits cable, alarm signal
Transmitting and be provided with liquid detection sensor and alarm on cable, alarm is connected with supervising device.Pass through liquid
Body detecting sensor detects the liquid spilt, and need to how to install liquid detection sensor, and cost is the most not
Low.
Utility model content
The purpose of this utility model is to provide expansion joint leak detecting device in a kind of heat supply pipeline, solves existing
There is the problem that heat supply pipeline detecting system cost present in technology is high.
In order to achieve the above object, the utility model is achieved by the following technical solutions.
Expansion joint leak detecting device in a kind of heat supply pipeline, in described heat supply pipeline, serial number is provided with many
Individual expansion joint, described expansion joint leak detecting device includes: along heat supply pipeline lay parallel with insulation outside
Two measure traverse lines of skin, between described two measure traverse lines, order is parallel with multiple temperature resistance group, multiple
Temperature resistance group is set in sequence in around multiple expansion joints that heat supply pipeline is corresponding；
The front port of described two measure traverse lines connects the measurement input of a resistance monitor, described resistance
The resistance data output of detector connects data processor, and the display output of described data processor is even
It is connected to display screen.
Preferably, institute's temperature resistance group is multiple temperature resistances that series connection is looped around on corresponding expansion joint.
Preferably, the quantity of the plurality of temperature resistance is 2-8.
Preferably, the rear port of described two measure traverse lines connects the time relay.
Preferably, the described time relay be the electromagnetism time relay, electronic time relay or hybrid time
Between one in relay.
The beneficial effects of the utility model are, by the leakage of expansion joint in heat supply pipeline, make to be looped around expansion
The change of the resistance of the temperature resistance group outside joint, so that the resistance of whole detection circuit changes, with
This determines the position of the expansion joint that leakage occurs；Simultaneously as the periphery of expansion joint is surrounded with the multiple of series connection
Temperature resistance, it is possible to the expansion joint seepage small from multi-faceted location.The utility model can detect simultaneously
On whole piece heat supply pipeline, the operation conditions of all expansion joints, practical, and maintenance workload is little and cost is low,
Solve the problem that heat supply pipeline detecting system cost present in prior art is high.
Accompanying drawing explanation
With detailed description of the invention, the utility model is described in detail below in conjunction with the accompanying drawings.
Fig. 1 is the circuit diagram of expansion joint leak detecting device in a kind of heat supply pipeline of the present utility model；
Fig. 2 is the structured flowchart of the expansion joint leak detection unit of Fig. 1.
In figure, 1, measure traverse line；2, temperature resistance group；3, expansion joint leak detection unit；4, the time
Relay；5, conductor resistance；6, resistance monitor；7, RS485 interface；8, data processor；9、
Display screen.
Detailed description of the invention
With reference to Fig. 1, in a kind of heat supply pipeline of the present utility model, the structure of expansion joint leak detecting device is, supplies
In hot channel, serial number is provided with multiple expansion joint, and this expansion joint leak detecting device includes: along heating tube
Two measure traverse lines 1 with insulation sheath that road is laid parallel, the material of measure traverse line 1 is copper, aluminium or nickel
One in evanohm, sectional area is 2.5-3.6mm2；Article two, between measure traverse line 1, order is parallel with some
Multiple temperature resistance groups 2, multiple temperature resistance groups 2 are set in sequence in multiple expansion joints week that heat supply pipeline is corresponding
Enclose；Temperature resistance group 2 is multiple temperature resistances that series connection is looped around on corresponding expansion joint, multiple temperature resistances
Quantity be 2-8, multiple temperature resistances use temperature highly sensitive, middle, on-off type, corrosion-resistant dual metal to continue
One in electrical equipment or temperature highly sensitive, middle, linear temperature-sensitive, corrosion-resistant dual metal relay；Article two, measurement is led
The front port of line 1 and and expansion joint leak detection unit 3 connect.
With reference to Fig. 2, expansion joint leak detection unit 3 includes resistance monitor 6, the measurement of resistance monitor 6
The front port of input and two measure traverse lines 1 connects, and the resistance data output of resistance monitor 6 connects
Having data processor 8, the display output of data processor 8 connects display screen 9, two measure traverse lines 1
Rear port connect have the time relay 4；The time relay 4 is the electromagnetism time relay, electronic time relay
One in device or the hybrid time relay.
When leakage occurs in a certain expansion joint in heat supply pipeline, heating power leaks, and is looped around the temperature control outside it
The resistance value of resistor group 2 changes, and causes the resistance in whole detection circuit to change, and expansion joint is let out
Resistance monitor 6 in dew detector unit 3 demonstrates current resistance, and this resistance is led to RS485 interface 7
Being transferred to data processor 8, data processor 8, after calculating, draws the temperature resistance that resistance changes
The position of group 2, so that it is determined that there is the particular location of the expansion joint revealed, and shows on display screen 9.
Heat supply pipeline is overhauled by staff according to the information on display screen 9.
Expansion joint leak detecting device of the present utility model, by the leakage of expansion joint in heat supply pipeline, makes ring
It is wound on the change of the resistance of temperature resistance group 2 outside expansion joint, so that the resistance of whole detection circuit is sent out
Changing, determines the position of the expansion joint that leakage occurs with this；Simultaneously as the periphery of expansion joint is surrounded with
Multiple temperature resistances, it is possible to the expansion joint seepage small from multi-faceted location.Expansion of the present utility model
Joint leak detecting device can detect the operation conditions of all expansion joints on whole piece heat supply pipeline simultaneously, practical,
Maintenance workload is little and cost is low, is suitable for being widely popularized.
Above content is to combine concrete preferred embodiment further detailed description of the utility model,
It cannot be assumed that of the present utility model being embodied as is confined to these explanations.For technology belonging to the utility model
For the those of ordinary skill in field, without departing from the concept of the premise utility, it is also possible to if making
Dry simple deduction or replace, all should be considered as belonging to protection domain of the present utility model.
Claims (5)
1. an expansion joint leak detecting device in heat supply pipeline, in described heat supply pipeline, serial number is arranged
There is multiple expansion joint, it is characterised in that: described expansion joint leak detecting device includes: along heat supply pipeline also
Two measure traverse lines (1) with insulation sheath that row is laid are suitable between described two measure traverse lines (1)
Sequence is parallel with multiple temperature resistance group (2), and multiple temperature resistance groups (2) are set in sequence in heat supply pipeline pair
Around the multiple expansion joints answered；
The front port of described two measure traverse lines (1) connects the measurement input having resistance monitor (6),
The resistance data output of described resistance monitor (6) connects has data processor (8), at described data
The display output of reason device (8) connects display screen (9).
Expansion joint leak detecting device in heat supply pipeline the most according to claim 1, it is characterised in that
Institute's temperature resistance group (2) is multiple temperature resistances that series connection is looped around on corresponding expansion joint.
Expansion joint leak detecting device in heat supply pipeline the most according to claim 2, it is characterised in that
The quantity of the plurality of temperature resistance is 2-8.
Expansion joint leak detecting device in heat supply pipeline the most according to claim 1, it is characterised in that
The rear port of described two measure traverse lines (1) connects the time relay (4).
Expansion joint leak detecting device in heat supply pipeline the most according to claim 4, it is characterised in that
The described time relay (4) is the electromagnetism time relay, electronic time relay or hybrid time relay
One in device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620348318.3U CN205562129U (en) | 2016-04-24 | 2016-04-24 | Expansion joint equipment in heat supply pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620348318.3U CN205562129U (en) | 2016-04-24 | 2016-04-24 | Expansion joint equipment in heat supply pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205562129U true CN205562129U (en) | 2016-09-07 |
Family
ID=56807200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620348318.3U Expired - Fee Related CN205562129U (en) | 2016-04-24 | 2016-04-24 | Expansion joint equipment in heat supply pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205562129U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105784287A (en) * | 2016-04-24 | 2016-07-20 | 中国大唐集团科学技术研究院有限公司西北分公司 | Temperature control resistor, and device and method of detecting leakage of expansion joints in heat supply pipeline |
| CN107884136A (en) * | 2017-10-30 | 2018-04-06 | 无锡市永兴金属软管有限公司 | A kind of failure test device of expansion joint |
| CN107966251A (en) * | 2017-10-30 | 2018-04-27 | 无锡市永兴金属软管有限公司 | A kind of expansion joint failure test method |
| WO2019169869A1 (en) * | 2018-03-09 | 2019-09-12 | 深圳光峰科技股份有限公司 | Liquid leakage prevention system and heat dissipation system |
-
2016
- 2016-04-24 CN CN201620348318.3U patent/CN205562129U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105784287A (en) * | 2016-04-24 | 2016-07-20 | 中国大唐集团科学技术研究院有限公司西北分公司 | Temperature control resistor, and device and method of detecting leakage of expansion joints in heat supply pipeline |
| CN105784287B (en) * | 2016-04-24 | 2020-03-31 | 中国大唐集团科学技术研究院有限公司西北分公司 | Temperature control resistor, and device and method for detecting leakage of expansion joint in heat supply pipeline |
| CN107884136A (en) * | 2017-10-30 | 2018-04-06 | 无锡市永兴金属软管有限公司 | A kind of failure test device of expansion joint |
| CN107966251A (en) * | 2017-10-30 | 2018-04-27 | 无锡市永兴金属软管有限公司 | A kind of expansion joint failure test method |
| WO2019169869A1 (en) * | 2018-03-09 | 2019-09-12 | 深圳光峰科技股份有限公司 | Liquid leakage prevention system and heat dissipation system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160907 Termination date: 20180424 |