CN105436158A - Impulse type low-temperature pipeline heating and dredging device - Google Patents
Impulse type low-temperature pipeline heating and dredging device Download PDFInfo
- Publication number
- CN105436158A CN105436158A CN201510967054.XA CN201510967054A CN105436158A CN 105436158 A CN105436158 A CN 105436158A CN 201510967054 A CN201510967054 A CN 201510967054A CN 105436158 A CN105436158 A CN 105436158A
- Authority
- CN
- China
- Prior art keywords
- valve rod
- heart valve
- logical heart
- valve
- cryogenic piping
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/032—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
- B08B9/0321—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing using pressurised, pulsating or purging fluid
- B08B9/0326—Using pulsations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B7/00—Cleaning by methods not provided for in a single other subclass or a single group in this subclass
- B08B7/0064—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by temperature changes
- B08B7/0071—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by temperature changes by heating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/032—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
- B08B9/0321—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing using pressurised, pulsating or purging fluid
- B08B9/0328—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing using pressurised, pulsating or purging fluid by purging the pipe with a gas or a mixture of gas and liquid
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Valves (AREA)
Abstract
The invention discloses an impulse type low-temperature pipeline heating and dredging device. The impulse type low-temperature pipeline heating and dredging device comprises a heater, a blow-off valve, a stop valve and a through-core valve rod, wherein the stop valve is arranged on the top of the through-core valve rod, an air inlet pipe and an air outlet pipe are arranged on the stop valve, the through-core valve rod switches back and forth to be connected between the blow-off valve and the heater by virtue of the air pipes, a through hole is formed in the lower part of the through-core valve rod, the outside diameter of the through-core valve rod is the same as that of a valve core of a ball valve on a low-temperature pipeline, the lower end of the through-core valve rod sleeves a hollow valve seat of the low-temperature pipeline, and the through hole corresponds to a hole in one side of the hollow valve seat, so that the through-core valve rod is only communicated with one side of the low-temperature pipeline. The problem that the low-temperature (below 0 DEG C) pipeline is easy to block by inlet water or mechanical impurities is solved, a dredging mode with high overhaul cost (such as a pipeline replacement mode for maintenance) is avoided, the effects of time saving and labor saving are achieved, the pipeline dredging efficiency is improved, and the cost is reduced.
Description
Technical field
The present invention relates to pipe-dredging technical field, be specifically related to a kind of pulsed cryogenic piping heating dredger.
Background technology
Cryogenic piping is by after water and mechanical admixture blocking, direct ventilation heating is very difficult, because gas cannot enter pipeline take away moisture and machine is mixed, generally need change pipeline, if the position residing for pipeline causes the economic cost changing pipeline quite large, apply this device just necessary, below the distillation system major part work low temperature of air separation unit, outside need has the ice chest of insulation material to completely cut off the heat exchange with the external world, in the condenser/evaporator of crude argon column liquid air (-185 DEG C) Hui Shangta line clogging after, serious threat is caused to the safe operation of air separation unit, air separation unit needs discharge opeing routinely, large heating, take off sand, examine and replace line treatment, before and after empty point crude argon column liquid air return valve HV4122, pipeline is example because mechanical admixture and ice block, as adopted shutdown, take off sand, change pipeline, expense is more than 1,000,000, maintenance downtime more than 15 days.If directly pass into heated air by HIC4112 valve seat, gas can pass through unplugged pipeline (before valve or after valve) completely and run away, and does not reach heating object.
Summary of the invention
The technical problem to be solved in the present invention is, in view of the foregoing defects the prior art has, provide a kind of pulsed cryogenic piping heating dredger, solution low temperature (less than 0 DEG C) pipe water or mechanical admixture easily block, avoid and adopt the larger dredging mode of maintenance cost (keeping in repair as selected the mode changing pipeline), time saving and energy saving, the efficiency that improve dredging pipeline has saved cost.
The present invention for solving the problems of the technologies described above adopted technical scheme is:
A kind of pulsed cryogenic piping heating dredger, comprise heater, diffusion valve and logical heart valve rod, logical heart valve stem top is provided with stop valve, stop valve is provided with turnover tracheae, logical heart valve rod switches connection by tracheae back and forth between diffusion valve and heater, logical heart stem lower portion is provided with through hole, the external diameter of logical heart valve rod is identical with the ball valve core on cryogenic piping, logical heart valve rod lower end is set on the hollow valve seat of cryogenic piping, through hole is corresponding with the hole of hollow valve seat side, make logical heart valve rod only with cryogenic piping side UNICOM.
Connect technique scheme, described logical heart valve rod bottom is provided with through hole.
Connect technique scheme, described logical heart valve rod sidewall is provided with through hole.
Connect technique scheme, logical heart valve rod is provided with valve rod fixed mount.
Connect technique scheme, logical heart valve rod cylindrical is provided with screw thread, and valve rod fixed mount is connected with logical heart valve rod by screw thread, leads to the stroke of heart valve rod outside valve rod fixed mount by threaded adjusting.
Connect technique scheme, logical heart valve rod and valve rod fixed mount junction are provided with stuffing seal.
Connect technique scheme, described stuffing seal is connected with valve rod fixed mount by screw thread, and packing seal comprises stuffing box, filler and follower, and filler is arranged in stuffing box, and follower is connected and fixed by bolt and stuffing box.
Connect technique scheme, the tracheae of diffusion valve and heater front end is equipped with ball valve.
Connect technique scheme, the tracheae connecting heater is provided with Pressure gauge.
The present invention has following beneficial effect:
Insert hollow valve seat by logical heart stem bottom to be connected with cryogenic piping, only pass into heated air to pipeline side and carry out dredging pipeline, heated air can not run off from pipeline opposite side, after certain pressure, hot gas in pipeline is released by diffusion valve, tracheae switches back and forth between heater and diffusion valve, formula heating cryogenic piping in a pulsed fashion, the moisture of blocking pipe and mechanical admixture are taken out of, reach the object of dredging pipeline, solution low temperature (less than 0 DEG C) pipe water or mechanical admixture easily block, avoid and adopt the larger dredging mode of maintenance cost (keeping in repair as selected the mode changing pipeline), time saving and energy saving, the efficiency that improve dredging pipeline has saved cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of the pulsed cryogenic piping heating dredger in the embodiment of the present invention one;
Fig. 2 is the structural representation of the pulsed cryogenic piping heating dredger in the embodiment of the present invention two;
Fig. 3 is the workflow schematic diagram of pulsed cryogenic piping of the present invention heating dredger;
In figure, 1-stop valve, 2-passes in and out tracheae, 3-valve rod fixed mount, 4-stuffing seal, and 5-leads to heart valve rod, 6-through hole, 7-condenser/evaporator, 8-lower pressure column, 9-HV4112 valve, 10-ball valve, 11-Pressure gauge, 12-heater, 13-diffusion valve.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is described in detail.
With reference to shown in Fig. 1 ~ Fig. 3, pulsed cryogenic piping heating dredger in an embodiment provided by the invention, comprise heater 12, diffusion valve 13 and logical heart valve rod 5, logical heart valve rod 5 top is provided with stop valve 1, stop valve 1 is provided with turnover tracheae 2, logical heart valve rod 5 switches connection by tracheae back and forth between diffusion valve 13 and heater 12, logical heart valve rod 5 bottom is provided with through hole 6, through hole 6 is corresponding with the hole of hollow valve seat side, make logical heart valve rod 5 only with cryogenic piping side UNICOM, the external diameter of logical heart valve rod 5 is identical with ball valve 10 spool on cryogenic piping, logical heart valve rod 5 lower end is set on the hollow valve seat of cryogenic piping, remove the spool of the low-temperature angle valve (i.e. HIC4112 valve) on pipeline, be connected with cryogenic piping by inserting hollow valve seat bottom logical heart valve rod 5, only pass into heated air to pipeline side and carry out dredging pipeline, heated air can not run off from pipeline opposite side, after certain pressure, hot gas in pipeline is released by diffusion valve 13, tracheae switches back and forth between heater 12 and diffusion valve 13, by constantly pulsed heating, the moisture of blocking pipe and mechanical admixture are taken out of, reach the object of dredging pipeline, solution low temperature (less than 0 DEG C) pipe water or mechanical admixture easily block, avoid and adopt the larger dredging mode of maintenance cost (keeping in repair as selected the mode changing pipeline), time saving and energy saving, the efficiency that improve dredging pipeline has saved cost.
Further, the embodiment one provided, as shown in Figure 1, described logical heart valve rod 5 bottom is provided with through hole 6, is that I type leads to heart valve rod 5, leads to heart valve rod 5 heating valve (the HV4112 valve 9 namely provided in embodiment) preceding pipeline by I type.
Further, the embodiment two provided, as shown in Figure 2, described logical heart valve rod 5 sidewall is provided with through hole 6, is that II type leads to heart valve rod 5, leads to heart valve rod 5 heating valve (the HV4112 valve 9 namely provided in embodiment) pipeline afterwards by II type.
Further, logical heart valve rod 5 is consistent with former appearance and size spool (spool of the HV4112 valve 9 namely provided in embodiment), and bottom and side are furnished with through hole 6 respectively, and top is processed with the screw thread matched with valve rod fixed mount 3.
Further, in an embodiment provided by the invention, logical heart valve rod 5 bottom and side are furnished with through hole 6 simultaneously, logical heart valve rod 5 is set with housing, and housing is provided with hole, by rotary shell, side through hole 6 is closed or conducting, logical heart valve rod 5 bottom is provided with end cap, control the through hole 6 of bottom by end cap to close or conducting, lead to during use heart valve rod 5 bottom different with side through hole 6 time conducting, logical heart valve rod 5 only with cryogenic piping one lateral line UNICOM.
Logical heart valve rod 5 is provided with valve rod fixed mount 3.
Logical heart valve rod 5 cylindrical is provided with screw thread, and valve rod fixed mount 3 is connected with logical heart valve rod 5 by screw thread, and logical heart valve rod 5 is fixed on the installation site of former spool by valve rod fixed mount 3, lead to the stroke of heart valve rod 5 outside valve rod fixed mount 3 by threaded adjusting.
Logical heart valve rod 5 is provided with stuffing seal 4 with valve rod fixed mount 3 junction.
Described stuffing seal 4 is connected with valve rod fixed mount 3 by screw thread, and packing seal comprises stuffing box, filler and follower, and filler is arranged in stuffing box, and follower is connected and fixed by bolt and stuffing box.
Logical heart valve rod 5 top is provided with stop valve 1, and stop valve 1 is provided with turnover tracheae 2, and turnover tracheae 2 is connected with diffusion valve 13 and heater 12 respectively by tracheae; When entering by it the spool being with through hole 6 with heated air during heater 12 UNICOM, when discharging through diffusion valve 13 by passing in and out tracheae 2 with gas during diffusion valve 13 UNICOM.
The tracheae of diffusion valve 13 and heater 12 front end is equipped with ball valve 10.
The tracheae connecting heater 12 is provided with Pressure gauge 11.
In one embodiment of the present of invention, implementation step of the present invention:
1) when after discovery line clogging, install the dredger leading to heart valve rod 5 with I type, if blast pipe without gas out, explanation is the blocking of valve preceding pipeline, otherwise I type need be led to heart valve rod 5 II type that is replaced by and lead to heart valve rod 5, respectively pipeline after heating valve preceding pipeline, valve, difference is that through hole 6 position of logical heart valve rod 5 is different, stem bottom opens hole 6 heating valve preceding pipeline, and pipeline after the heating valve of hole 6 is opened in valve rod side.
2) supporting heating gas source pipe is installed in continuation, and pipeline installs a diffusion valve 13 and Pressure gauge 11 before entering this device, as use and the pressure monitoring use of the diffusion valve 13 of pulsed heating;
3) the maximum safe allowable temperature of water back and pressure as required, passes into dry air and nitrogen, if blocking material likely fires, must lead to nitrogen;
4), after gas pressure to be heated reaches setting value, close import heated air and control ball valve 10, open diffusion valve 13, heat is sent in the pipeline that need heat, mechanical admixture wherein and moisture is taken away when heated air is diffused, repeated multiple times, until dredging.
5) owing to needing pressure alternation repeatedly in water back, pressure is by 0 to maximum, and be equivalent to each time carry out an adiabatic compression to pipeline, the heat produced is also considerable.
Above is only preferred embodiment of the present invention, certainly can not limit the interest field of the present invention with this, therefore according to the equivalence change that the present patent application the scope of the claims is done, still belongs to protection scope of the present invention.
Claims (9)
1. a pulsed cryogenic piping heating dredger, it is characterized in that, comprise heater, diffusion valve and logical heart valve rod, logical heart valve stem top is provided with stop valve, stop valve is provided with turnover tracheae, logical heart valve rod switches connection by turnover tracheae back and forth between diffusion valve and heater, logical heart stem lower portion is provided with through hole, the external diameter of logical heart valve rod is identical with the ball valve core on cryogenic piping, logical heart valve rod lower end is set on the hollow valve seat of cryogenic piping, through hole is corresponding with the hole of hollow valve seat side, make logical heart valve rod only with cryogenic piping side UNICOM.
2. pulsed cryogenic piping heating dredger according to claim 1, it is characterized in that, described logical heart valve rod bottom is provided with through hole.
3. pulsed cryogenic piping heating dredger according to claim 1, it is characterized in that, described logical heart valve rod sidewall is provided with through hole.
4. pulsed cryogenic piping heating dredger according to claim 1, it is characterized in that, logical heart valve rod is provided with valve rod fixed mount.
5. pulsed cryogenic piping heating dredger according to claim 4, it is characterized in that, logical heart valve rod cylindrical is provided with screw thread, and valve rod fixed mount is connected with logical heart valve rod by screw thread, leads to the stroke of heart valve rod outside valve rod fixed mount by threaded adjusting.
6. pulsed cryogenic piping heating dredger according to claim 4, it is characterized in that, logical heart valve rod and valve rod fixed mount junction are provided with stuffing seal.
7. pulsed cryogenic piping heating dredger according to claim 6, it is characterized in that, described stuffing seal is connected with valve rod fixed mount by screw thread, packing seal comprises stuffing box, filler and follower, filler is arranged in stuffing box, and follower is connected and fixed by bolt and stuffing box.
8. pulsed cryogenic piping heating dredger according to claim 1, is characterized in that, the tracheae of diffusion valve and heater front end is equipped with ball valve.
9. pulsed cryogenic piping heating dredger according to claim 1, it is characterized in that, the tracheae connecting heater is provided with Pressure gauge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510967054.XA CN105436158B (en) | 2015-12-20 | 2015-12-20 | A kind of pulsed cryogenic piping heats dredger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510967054.XA CN105436158B (en) | 2015-12-20 | 2015-12-20 | A kind of pulsed cryogenic piping heats dredger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105436158A true CN105436158A (en) | 2016-03-30 |
| CN105436158B CN105436158B (en) | 2017-10-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510967054.XA Active CN105436158B (en) | 2015-12-20 | 2015-12-20 | A kind of pulsed cryogenic piping heats dredger |
Country Status (1)
| Country | Link |
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| CN (1) | CN105436158B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201217005Y (en) * | 2008-05-15 | 2009-04-08 | 宝山钢铁股份有限公司 | Coal tube dredging apparatus |
| CN201572770U (en) * | 2009-12-29 | 2010-09-08 | 唐山科汇达仪器仪表有限公司 | Continuous pipeline pressure-measurement blocking back-blowing device |
| US20110056240A1 (en) * | 2009-09-08 | 2011-03-10 | Consolidated Edison Company Of New York, Inc. | Freeze plug system and method of operation |
| KR20130026149A (en) * | 2011-09-05 | 2013-03-13 | 손호인 | Pipe's freeze and burst preventing apparatus |
| CN203292143U (en) * | 2013-05-10 | 2013-11-20 | 山西太钢不锈钢股份有限公司 | Pipeline dredging device |
| WO2014140939A2 (en) * | 2013-03-15 | 2014-09-18 | Certek Heat Machine Inc. | Pipeline heater |
| CN204592692U (en) * | 2015-04-20 | 2015-08-26 | 孙嘉鸿 | A kind of pipeline thawing apparatus |
-
2015
- 2015-12-20 CN CN201510967054.XA patent/CN105436158B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201217005Y (en) * | 2008-05-15 | 2009-04-08 | 宝山钢铁股份有限公司 | Coal tube dredging apparatus |
| US20110056240A1 (en) * | 2009-09-08 | 2011-03-10 | Consolidated Edison Company Of New York, Inc. | Freeze plug system and method of operation |
| CN201572770U (en) * | 2009-12-29 | 2010-09-08 | 唐山科汇达仪器仪表有限公司 | Continuous pipeline pressure-measurement blocking back-blowing device |
| KR20130026149A (en) * | 2011-09-05 | 2013-03-13 | 손호인 | Pipe's freeze and burst preventing apparatus |
| WO2014140939A2 (en) * | 2013-03-15 | 2014-09-18 | Certek Heat Machine Inc. | Pipeline heater |
| CN203292143U (en) * | 2013-05-10 | 2013-11-20 | 山西太钢不锈钢股份有限公司 | Pipeline dredging device |
| CN204592692U (en) * | 2015-04-20 | 2015-08-26 | 孙嘉鸿 | A kind of pipeline thawing apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105436158B (en) | 2017-10-27 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20170825 Address after: 430083, Baiyu mountain, Wuhan City, Hubei province (Gate No. 20, Wuhan) Applicant after: Wuhan iron and Steel Group Gas Co Ltd Address before: 430080 Wuhan, Hubei Friendship Road, No. 999, Wuchang Applicant before: Wuhan Iron & Steel (Group) Corp. |
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| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |