CN203148453U - Instrument heat tracing device - Google Patents
Instrument heat tracing device Download PDFInfo
- Publication number
- CN203148453U CN203148453U CN 201320134571 CN201320134571U CN203148453U CN 203148453 U CN203148453 U CN 203148453U CN 201320134571 CN201320134571 CN 201320134571 CN 201320134571 U CN201320134571 U CN 201320134571U CN 203148453 U CN203148453 U CN 203148453U
- Authority
- CN
- China
- Prior art keywords
- guiding pipe
- pressure guiding
- communicated
- sealing chamber
- pipeline
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Measuring Fluid Pressure (AREA)
Abstract
The utility model discloses an instrument heat tracing device. A throttling orifice plate is arranged on a pipeline, one end of an upper-left pressure transmission tube is communicated with the pipeline on the left of the throttling orifice plate, and an upper-right pressure transmission tube is communicated with the pipeline on the right of the throttling orifice plate. The pipeline is externally provided with a thermal insulation layer. High and low pressure liquid inlets of a transmitter are respectively communicated with one end of a lower-left pressure transmission tube and one end of a lower-right pressure transmission tube. The instrument heat tracing device further comprises isolation tanks, wherein a lower part of a left isolation tank is communicated with the other end of the lower-left pressure transmission tube, a lower part of a right isolation tank is communicated with the other end of the lower-right pressure transmission tube, an upper part of the left isolation tank is communicated with the other end of the upper-left pressure transmission tube, and an upper part of the right isolation tank is communicated with the upper-right pressure transmission tube; the isolation tanks, the lower-left pressure transmission tube and the lower-right pressure transmission tube are internally provided with isolation liquid, and the liquid level of the isolation liquid inside the isolation tanks is lower than that of the isolation liquid in the lower-left pressure transmission tube and the lower-right pressure transmission tube; the density and the boiling point of the isolation liquid are both higher than the density and the boiling point of flowing medium in the pipeline, and the freezing point of the isolation liquid is lower than the ambient temperature outside the thermal insulation layer; and the isolation tanks, the lower-left pressure transmission tube and the lower-right pressure transmission tube are all arranged inside the thermal insulation layer.
Description
Technical field
The utility model relates to a kind of instrument companion thermic devices, mainly is for petrochemical complex production.
Background technology
The northern area of China cold in winter, temperature reaches subzero more than 15 degree, bring very big inconvenience for the production of this area, also having a strong impact on petrochemical complex production, particularly on-the-spot instrument for automatic control, dependence to the weather temperature is bigger, if environment temperature is crossed phenomenons such as will freezing, solidify, separate out crystallization when hanging down,, take place for avoiding this type of accident for this reason, must carry out antifreeze processing to outdoor instrument and instrument measurement pipeline, namely have tracing system to follow.Need the object of tracing thermal-insulating to mainly contain valve, pressure guiding pipe and a transmitter etc. of the instrument such as liquid level, pressure, differential pressure, flow of open-air installation.If there is not tracing system, whole instrument pressure test section will be congealed, and is light then directly have influence on the accuracy that instrument measurement shows, heavy then damage instrument, and influence production causes shut-down.
Add tracing system will for outdoor instrument, exist several factors to need to consider: the firstth, temperature control problem: accompany hot temperature will control in the temperature range of instrument regulation; The 21 is leakage problem: the part of instrument companion hot line bending is more, and weld bond is more during installation, adds long-term corrosion, very easily leaks; The 3rd is circulatory problems: facts have proved that the quality of instrument tracing system work has much relations with design originally.Appropriate, the science of design, system use just reliable, and it is just unobstructed to circulate, if the defectiveness of design, it is normal just to be difficult to operation so in actual applications; The 4th is energy consumption problem: use steam tracing, energy consumption is big, and cost is just high, not only wastes resource, also damages instrument easily.The 5th is that Winter protection send and will check that the steam insulation pipeline is whether unimpeded or stop up before the vapour.To adjust for insulation vapour amount according to the weather temperature variation, not only too not hot but also can not be too cool, the too high meeting of temperature makes transmitter pressure guiding pipe inner condensat liquid vaporization influence transmitter work, and temperature is too low to be made transmitter pressure guiding pipe inner condensat liquid freezing to influence transmitter work unimpeded.
What at present, the most of petroleum chemical enterprise of China adopted is steam tracing.Steam tracing is companion's hot mode of an inefficiency, even every companion's hot line all has steam trap, can reclaim most of condensate water, but be subjected to vapor pressure, the influence of temperature and other factors, heat tracing pipe has also the time phenomenon of freezing to take place, so instrument maintainer also designs a lot of ways, have steam trap is transferred cancelled steam trap internal control parts greatly even privately, become path, do not have the effect of steam trap, though not going out what waste outwardly comes, but the steam of waste is a lot, even the annual like this tracing system that also has a lot of instrument winter freezes, not only influenced production, the steam that consumes when the pipeline that processing is freezed is also very many.Steam superheating also can cause medium gasification in the pressure guiding pipe, causes the fluctuation of instrument display parameter.
Summary of the invention
The purpose of this utility model provides the instrument that a kind of cost is low, efficient is high, be difficult for revealing and accompanies thermic devices.
Technical solutions of the utility model are finished like this, a kind of instrument companion thermic devices, include pipeline, transmitter, heat-insulation layer, throttling orifice plate, throttling orifice plate is located on the pipeline, upper left pressure guiding pipe one end is communicated with throttling orifice plate left side pipeline, upper right pressure guiding pipe is communicated with throttling orifice plate right side pipeline, the pipeline outside is provided with heat-insulation layer, the transmitter height, the low pressure inlet respectively with the lower-left, one end of bottom right pressure guiding pipe is communicated with, also include sealing chamber, sealing chamber bottom, a left side is communicated with the lower-left pressure guiding pipe other end, right sealing chamber bottom is communicated with the bottom right pressure guiding pipe other end, sealing chamber top, a left side is communicated with the upper left pressure guiding pipe other end, right sealing chamber top is communicated with sealing chamber with upper right pressure guiding pipe, the lower-left pressure guiding pipe, the insides such as bottom right pressure guiding pipe are provided with spacer pad, and the spacer pad liquid level of sealing chamber the inside is lower than upper left, the upper right pressure guiding pipe mouth of pipe, density isolating liquid and boiling point all are higher than density and the boiling point of the flow media in the pipeline, and the solidifying point of spacer pad is lower than the environment temperature of heat-insulation layer outside; Sealing chamber, upper left pressure guiding pipe, upper right pressure guiding pipe all are located in the heat-insulation layer.
Be provided with heat-insulation layer between described sealing chamber or upper left pressure guiding pipe or upper right pressure guiding pipe and the pipeline.
Described upper left pressure guiding pipe is provided with left stop valve.
Described upper right pressure guiding pipe is provided with right stop valve.
Described sealing chamber top or below be provided with variable valve.
For preventing wind and weather, increase heat insulation effect, can add the insulation Rainproof case in the outside of this device.
Technique effect of the present utility model is: owing to be to utilize flow media self heat in the pipeline to prevent that the flow media in sealing chamber, upper left, the upper right pressure guiding pipe etc. from freezing, the environment temperature big because of the density isolating liquid in the exposed pressure guiding pipe, that boiling point is high and solidifying point is lower than heat-insulation layer outside not easy freezing, be difficult for gasification, compared with prior art, reduced cost, flow media also is difficult for revealing or freezing, improve work efficiency, also be convenient to operating personnel to the maintenance of daily instrument.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
By reference to the accompanying drawings the utility model is described in further detail, as shown in Figure 1, the utility model includes pipeline 9, transmitter 11, heat-insulation layer 1, throttling orifice plate 5, throttling orifice plate 5 is located on the pipeline 9, upper left pressure guiding pipe 3 one ends are communicated with throttling orifice plate 5 left side pipelines 9, upper right pressure guiding pipe 7 is communicated with throttling orifice plate 5 right side pipelines 9, pipeline 9 outsides are provided with heat-insulation layer 1, transmitter 11 height, the low pressure inlet respectively with lower-left pressure guiding pipe 12, one end of bottom right pressure guiding pipe 10 is communicated with, sealing chamber 2 bottoms, a left side are communicated with lower-left pressure guiding pipe 12 other ends, right sealing chamber 8 bottoms are communicated with bottom right pressure guiding pipe 10 other ends, sealing chamber 2 tops, a left side are communicated with upper left pressure guiding pipe 3 other ends, right sealing chamber 8 tops are communicated with upper right pressure guiding pipe 7, sealing chamber, lower-left pressure guiding pipe 12, the insides such as bottom right pressure guiding pipe 10 are provided with spacer pad, the spacer pad liquid level of sealing chamber the inside is lower than upper left, the upper right pressure guiding pipe mouth of pipe, density isolating liquid and boiling point all are higher than density and the boiling point of the flow media in the pipeline, and the solidifying point of spacer pad is lower than the environment temperature of heat-insulation layer 1 outside; Sealing chamber, upper left pressure guiding pipe 12, upper right pressure guiding pipe 10 all are located in the heat-insulation layer 1.
If the temperature of pipeline 9 is too high, can between sealing chamber or upper left pressure guiding pipe 3 or upper right pressure guiding pipe 7 and pipeline 9, add heat-insulation layer, sealing chamber or upper left pressure guiding pipe 3 or upper right pressure guiding pipe 7 are remained within certain temperature.
Be handled easily and maintenance, can left stop valve 4 be set at upper left pressure guiding pipe 3.Also can right stop valve 6 be set at upper right pressure guiding pipe 7.Also can be on sealing chamber or below variable valve is set.
For increasing the rainproof effect of insulation, can establish an insulation Rainproof case in this device outside.
During operation, in sealing chamber, inject spacer pad by the variable valve above the sealing chamber, when too much as the spacer pad in the sealing chamber, variable valve below sealing chamber is regulated, make the liquid level in the left sealing chamber 2 be lower than the upper left pressure guiding pipe 3 left end mouths of pipe, the liquid level in the right sealing chamber 8 is lower than the upper right pressure guiding pipe 7 right-hand member mouths of pipe; Variable valve above the sealing chamber does not cut out, and opens the stop valve 4,6 on upper left pressure guiding pipe 2, the upper right pressure guiding pipe 8, after the flow medias in the pipeline 9 enter in the sealing chamber, in the time of will coming out from the variable valve on the sealing chamber, the variable valve on the sealing chamber cuts out again; This moment, the sealing chamber the inside the superiors were flow media, and lower floor is spacer pad, and lower-left pressure guiding pipe 12, bottom right pressure guiding pipe 10 the insides are spacer pad; Because of the density of density isolating liquid greater than flow media, the flow media in the sealing chamber is positioned at above the spacer pad all the time, and the transmitter of this moment just can operate as normal.
Claims (6)
1. an instrument is accompanied thermic devices, include pipeline, transmitter, heat-insulation layer, throttling orifice plate, throttling orifice plate is located on the pipeline, upper left pressure guiding pipe one end is communicated with throttling orifice plate left side pipeline, upper right pressure guiding pipe is communicated with throttling orifice plate right side pipeline, the pipeline outside is provided with heat-insulation layer, the transmitter height, the low pressure inlet respectively with the lower-left, one end of bottom right pressure guiding pipe is communicated with, it is characterized in that: also include sealing chamber, sealing chamber bottom, a left side is communicated with the lower-left pressure guiding pipe other end, right sealing chamber bottom is communicated with the bottom right pressure guiding pipe other end, sealing chamber top, a left side is communicated with the upper left pressure guiding pipe other end, right sealing chamber top is communicated with upper right pressure guiding pipe, sealing chamber, the lower-left pressure guiding pipe, the insides such as bottom right pressure guiding pipe are provided with spacer pad, the spacer pad liquid level of sealing chamber the inside is lower than upper left, the upper right pressure guiding pipe mouth of pipe, density isolating liquid and boiling point all are higher than density and the boiling point of the flow media in the pipeline, and the solidifying point of spacer pad is lower than the environment temperature of heat-insulation layer outside; Sealing chamber, upper left pressure guiding pipe, upper right pressure guiding pipe all are located in the heat-insulation layer.
2. a kind of instrument companion thermic devices according to claim 1 is characterized in that: be provided with heat-insulation layer between sealing chamber or upper left pressure guiding pipe or upper right pressure guiding pipe and the pipeline.
3. a kind of instrument according to claim 1 and 2 is accompanied thermic devices, and it is characterized in that: upper left pressure guiding pipe is provided with left stop valve.
4. a kind of instrument according to claim 1 and 2 is accompanied thermic devices, and it is characterized in that: upper right pressure guiding pipe is provided with right stop valve.
5. a kind of instrument companion thermic devices according to claim 1 and 2 is characterized in that: described sealing chamber top or below be provided with variable valve.
6. a kind of instrument according to claim 1 and 2 is accompanied thermic devices, and it is characterized in that: the outside of this device is provided with the insulation Rainproof case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320134571 CN203148453U (en) | 2013-03-23 | 2013-03-23 | Instrument heat tracing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320134571 CN203148453U (en) | 2013-03-23 | 2013-03-23 | Instrument heat tracing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203148453U true CN203148453U (en) | 2013-08-21 |
Family
ID=48975970
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320134571 Expired - Fee Related CN203148453U (en) | 2013-03-23 | 2013-03-23 | Instrument heat tracing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203148453U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104132682A (en) * | 2014-08-04 | 2014-11-05 | 张寒军 | Instrument self-heat-tracing temperature adjusting module |
-
2013
- 2013-03-23 CN CN 201320134571 patent/CN203148453U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104132682A (en) * | 2014-08-04 | 2014-11-05 | 张寒军 | Instrument self-heat-tracing temperature adjusting module |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203148453U (en) | Instrument heat tracing device | |
| CN204438284U (en) | A kind of thermal power plant heating system | |
| CN205156679U (en) | Compound calorimeter of steam coiled natural gas | |
| CN203500840U (en) | Recuperative electric heating device | |
| CN202692493U (en) | Highly-integrated non-pressure operation confined water tank | |
| CN106481983A (en) | Urban gate station Gas Pressure Regulating Equipment | |
| CN203642537U (en) | Automatic leakage warning device of solar water heating system | |
| CN101825350B (en) | Heat accumulating type anti-freeze solar heat collector system | |
| CN101718477A (en) | Solar thermal collector freezing prevention system | |
| CN209343904U (en) | A kind of maritime transformer station transformer fresh water cooled integrated equipment | |
| CN203500841U (en) | Air-temperature type natural gas gasifying device | |
| CN201695998U (en) | Heat tracing device of solar energy liquid indicator of oil-field margin well block | |
| CN203420747U (en) | Automatic recovery system for water drained by heater for heating network | |
| CN105480607A (en) | Internal oil tank heating oil product quality control system and quality control method | |
| CN202791334U (en) | Automatic air collecting and exhausting device | |
| CN214619487U (en) | Antifouling stifled fan heater hydrophobic construction of air preheater in winter | |
| CN204436486U (en) | A kind of open type two-purpose buffer tank system | |
| CN110906545A (en) | Energy-saving environment-friendly domestic water tank anti-freezing heating system | |
| CN203518296U (en) | Anti-freezing emptying device of water supplying and water returning pipelines of solar water heating system | |
| CN220270152U (en) | Heat recovery device of split air conditioner for ship | |
| CN213362436U (en) | Boiler return water system with economizer | |
| CN201116631Y (en) | Heat pipe thermal-fetching heat preservation device | |
| CN213455683U (en) | Intelligent anti-freezing water meter device | |
| CN107044680A (en) | Pressure equaliser in cooling, heating system | |
| CN211690549U (en) | Water supply equipment with pipe network forced protection function |
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 |
Granted publication date: 20130821 Termination date: 20150323 |
|
| EXPY | Termination of patent right or utility model |