CN108691758A - Reciprocating compressor automatic temperature control - Google Patents
Reciprocating compressor automatic temperature control Download PDFInfo
- Publication number
- CN108691758A CN108691758A CN201710225868.5A CN201710225868A CN108691758A CN 108691758 A CN108691758 A CN 108691758A CN 201710225868 A CN201710225868 A CN 201710225868A CN 108691758 A CN108691758 A CN 108691758A
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- Prior art keywords
- valve
- import
- temperature
- reciprocating compressor
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/06—Control using electricity
- F04B49/065—Control using electricity and making use of computers
-
- 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
- B08B9/08—Cleaning containers, e.g. tanks
- B08B9/093—Cleaning containers, e.g. tanks by the force of jets or sprays
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/06—Cooling; Heating; Prevention of freezing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
- F04B39/123—Fluid connections
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/16—Filtration; Moisture separation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B2205/00—Fluid parameters
- F04B2205/10—Inlet temperature
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Compressor (AREA)
Abstract
The present invention relates to a kind of reciprocating compressor automatic temperature controls, it is characterized in that, the automatic control device includes inlet pipeline, import buffer, transmission pipeline, compression assembly, aftercooler, outlet conduit and reflux line, the inlet pipeline connects transmission pipeline by import buffer, the transmission pipeline connects aftercooler by compression assembly, and the aftercooler connects inlet pipeline by outlet conduit, reflux line.The technical solution solve in most enterprises unit import impurity block, the energy wastes such as outlet temperature can not accurately control, steam the problems such as, there is high-efficiency environment friendly, energy saving and cost lowering, relatively low maintenance cost, it is easy to spread the features such as.
Description
Technical field
The present invention relates to a kind of control devices, and in particular to a kind of reciprocating compressor automatic temperature control and cleaning
Method belongs to compressor arrangement equipment technical field.
Background technology
Reciprocating compressor belongs to positive displacement compressor, is that the gas of a constant volume is made sequentially to suck and be discharged closing sky
Between improve the compressor of static pressure, have the thermal efficiency is high, unit power consumption amount is few, it is cheap, have a wide range of application, manufacturing technology at
Ripe, the features such as outlet pressure is high, the industries such as oil, chemical industry, natural gas are mainly used in, due to process requirements, each big steel enterprise
Industry application is also relatively broad.Compressor cardinal principle is that the rotary motion of bent axle is become the reciprocating linear fortune of piston in the cylinder
It is dynamic, it is that gas is completed again and again in cylinder by the cyclically-varying for the sealed volume that cylinder, piston and air valve are formed
Expansion, air-breathing, compression and exhaust Four processes.In unit running process, inlet temperature is determined by atmospheric environment and pipe temperature
Calmly, it is hardened at import buffer strainer and blow-off pipe to often result in the easily solidification magazine such as naphthalene, causes inlet pressure low, Wu Fazheng
Often operation;Outlet temperature is adjusted mainly by aftercooler, is mainly manually paid close attention to, and is changed adjustment in time according to atmospheric environment, is prevented
It is only hardened and freeze.
It is consulted by retrieving, also mostly processing of domestic iron and steel enterprises problems is using to inlet pipeline, outlet conduit
It is kept the temperature Deng easily hardened position, increases the conventional steps such as steam tracing and handled, every year to the inspection of heat preservation, maintenance, increased
The expense of equipment maintenance, and wrapped pipeline easily corrodes, and generates gas leak phenomenon;Cooling water flow is manually adjusted to control
Temperature processed can not grasp the accuracy of temperature, and workload increases.Therefore, there is an urgent need for a kind of new schemes to solve the skill
Art problem.
Invention content
The present invention exactly for the technical problems in the prior art, provides a kind of reciprocating compressor temperature and controls automatically
Device processed, the technical solution is compact-sized, convenient for disassembly and assembly, safe and reliable, solve in most enterprises unit import impurity block,
The problems such as energy wastes such as outlet temperature can not accurately control, steam, there is high-efficiency environment friendly, energy saving and cost lowering, relatively low maintenance cost,
The features such as easy to spread.
To achieve the goals above, technical scheme is as follows, a kind of reciprocating compressor temperature automatic control dress
It sets, which is characterized in that the automatic control device includes inlet pipeline, import buffer, transmission pipeline, compression assembly, rear cold
But device, outlet conduit and reflux line, the inlet pipeline connect transmission pipeline, the transmission pipeline by import buffer
Aftercooler is connected by compression assembly, the aftercooler connects inlet pipeline by outlet conduit, reflux line.
As an improvement of the present invention, the compression assembly includes first-stage cylinder, intercooler, secondary cylinder and coal pressure
Machine crankshaft case, the intercooler are arranged between first-stage cylinder and secondary cylinder, and the coal press machine crankcase connects level-one simultaneously
Cylinder and secondary cylinder, the secondary cylinder connect aftercooler by pipeline.
As an improvement of the present invention, it is provided with intake screen on the inlet pipeline, is additionally provided on inlet pipeline
Steam blowing mouth and imported valve.
As an improvement of the present invention, it is provided with import on the transmission pipeline between the import buffer and first-stage cylinder
Temperature sample point.
As an improvement of the present invention, outlet valve, one end connection of aftercooler are provided on the outlet conduit
Cooling water outlet pipe, the other end connect cooling water inlet pipe, electric control valve are provided on the cooling water inlet pipe.
As an improvement of the present invention, electronic big return valve is provided on the reflux line.
As an improvement of the present invention, the import buffer is connected with blow-off line, the intercooler connection
There is blow-off line.
A kind of back-flushing method of reciprocating compressor automatic temperature control, the method are as follows:
1)Inlet temperature sample point detects import medium temperature;
2)When import medium temperature is higher than 30 DEG C, by PLC with cooling into the electronic butterfly of electric control valve interlocking close waterborne
Valve reduces inflow, and control outlet temperature is at 60 DEG C;
3)When import medium temperature is less than 30 DEG C, electronic butterfly is opened into electric control valve interlocking waterborne with cooling by PLC
Valve increases inflow, and control outlet temperature is at 60 DEG C;
4)The regurgitant volume generated using pipeline internal medium is by the cooling medium back flow at 60 DEG C to inlet pipeline;
5)Inlet temperature sample point judges to import medium temperature, then is adjusted by interlocking, repeats 1)—4)Step
Suddenly;
6)When there is impurity hardened, reciprocating compressor imported valve, outlet valve are closed to realize that medium completely cuts off;
7)Open import buffer blowdown valve, intercooler blowdown valve, aftercooler blowdown valve;
8)Steam blowing mouth valve is opened, starts to clean apparatus body and auxiliary device, it can be with using the high temperature of steam, high pressure
Cleaning is completed in 10 minutes, it is unified to be emitted into oil sump by blow-off pipe.
Compared with the existing technology, the invention has the advantages that, the technical solution compact overall structure, ingenious, the program
On the one hand, original big reflux line is changed to the position closer from import, using the high temperature of reciprocating compressor secondary exhaust,
Unit import is flowed to by flowing back greatly, inlet pipeline temperature is improved, prevents the substances such as naphthalene hardened in import buffer, cause unit
Import blocks;On the other hand, increase temperature measuring point in inlet pipeline, aftercooler water inlet pipe increases electric control valve, passes through
It is chain that PLC controls make electric control valve and inlet temperature realize, reduces labor intensity, improves efficiency, increases temperature
The accuracy for spending control, the regurgitant volume that medium is adequately utilized realize the control of inlet temperature;Meanwhile medium it is hardened
When import and export pipeline, intercooler, on-line rinsing is carried out using steam, there is high-efficiency environment friendly, energy-saving and emission-reduction to reduce to life
The influence of production, low-maintenance cost, it is easy to spread the features such as;Line cleaning method described in the technical solution, passes through import and export valve
Completely cut off medium air source, effectively removes the hardened medium in equipment or pipeline in a short time, it can be immediately available as spare unit
It comes into operation, maximally reduces the influence to production.
Description of the drawings
Fig. 1 is overall structure of the present invention;
In figure:1, inlet pipeline, 2, intake screen, 3, import buffer, 4, blow-off line, 5, inlet temperature sample point, 6, one
Grade cylinder, 7, intercooler, 8, secondary cylinder, 9, coal press machine crankcase, 10, cooling water inlet pipe, 11, aftercooler, 12, electronic
Regulating valve, 13, cooling water outlet pipe, 14, electronic big return valve, 15, imported valve, 16, outlet valve, 17, steam blows
Sweep mouth, 18, blow-off line, 19, blow-off line, 20, outlet conduit, 21, reflux line, 22, transmission pipeline.
Specific implementation mode:
In order to deepen the understanding of the present invention, the present embodiment is described in detail below in conjunction with the accompanying drawings.
Embodiment 1:Referring to Fig. 1, a kind of reciprocating compressor automatic temperature control, the automatic control device includes
Inlet pipeline 1, import buffer 3, transmission pipeline 22, compression assembly, aftercooler 11, outlet conduit 20 and reflux line
21, the inlet pipeline 1 connects transmission pipeline 22 by import buffer 3, after the transmission pipeline is connected by compression assembly
Cooler 11, the aftercooler 11 connect inlet pipeline 1 by outlet conduit 20, reflux line 21.The compression assembly packet
First-stage cylinder 6, intercooler 7, secondary cylinder 8 and coal press machine crankcase 9 are included, the intercooler 7 is arranged in 6 He of first-stage cylinder
Between secondary cylinder 8, the coal press machine crankcase connects first-stage cylinder 6 and secondary cylinder 8 simultaneously, and the secondary cylinder 8 is connected by pipeline
Aftercooler 11.
It is provided with intake screen 2 on the inlet pipeline 1, steam blowing mouth 17 and inlet valve are additionally provided on inlet pipeline
Door 15 is provided with inlet temperature sample point 5 on the transmission pipeline between the import buffer 3 and first-stage cylinder 6.The outlet
Outlet valve 16 is provided on road 20, one end of aftercooler connects cooling water outlet pipe, and the other end connects cooling water inlet pipe
10, electric control valve 12 is provided on the cooling water inlet pipe.Electronic big return valve is provided on the reflux line
14, the import buffer 3 is connected with blow-off line 4, and the intercooler is connected with blow-off line 19.The technical solution will
Original big reflux line and valve are changed to the position closer from import, using the high temperature of reciprocating compressor secondary exhaust, lead to
It is excessive to flow to unit import, improve inlet pipeline temperature, prevent the substances such as naphthalene hardened in import buffer, cause unit into
Mouth blocks;Meanwhile increasing temperature measuring point in inlet pipeline, aftercooler water inlet pipe increases electric control valve, is set by PLC
It is fixed, so that electric control valve and inlet temperature is realized chain, accurate and effective controls inlet and outlet, both avoids temperature
Spend it is low and caused by impurity it is hardened, and reduce the expenses such as heat preservation, steam energy consumption, at the same fully, rational conveying be utilized be situated between
The regurgitant volume of matter.
Embodiment 1:Referring to Fig. 1, a kind of back-flushing method of reciprocating compressor automatic temperature control, the method
It is as follows:
1)Inlet temperature sample point 5 detects import medium temperature;
2)When import medium temperature is higher than 30 DEG C, pass through PLC and the electric control valve 12 interlocking close electricity in cooling water inlet 10
Dynamic butterfly valve 12 reduces inflow, and control outlet temperature is at 60 DEG C;
3)When import medium temperature is less than 30 DEG C, electricity is opened by PLC and the interlocking of electric control valve 12 in cooling water inlet 10
Dynamic butterfly valve 12 increases inflow, and control outlet temperature is at 60 DEG C;
4)The regurgitant volume generated using pipeline internal medium is by the cooling medium back flow at 60 DEG C to inlet pipeline 1;
5)Inlet temperature sample point 5 judges to import medium temperature, then is adjusted by interlocking, repeats 1)—4)Step
Suddenly;
6)When there is impurity hardened, reciprocating compressor imported valve 15, outlet valve 16 are closed to realize that medium completely cuts off;
7)Open import buffer blowdown valve 4, intercooler blowdown valve 18, aftercooler blowdown valve 19;
8)Steam blowing mouth valve 17 is opened, starts to clean apparatus body and auxiliary device, it can using the high temperature of steam, high pressure
It is unified to be emitted into oil sump by blow-off pipe to complete cleaning in 10 minutes.
In the technical solution, first, the inlet temperature of reciprocating compressor requires to be 0 ~ 40 DEG C, secondary exhaust temperature requirement
It it is≤160 DEG C, the hardened temperature of naphthalene is 8 DEG C, and inlet temperature is controlled at 30 DEG C, and outlet temperature is 115 DEG C, and the magazines such as naphthalene are not easy
Hardened, operational effect is best, therefore sets inlet temperature as 30 DEG C;The inlet temperature measurement point and aftercooler that will be newly increased simultaneously
The realization of water inlet pipe regulating valve is chain, and when inlet temperature is higher or lower than 30 DEG C, regulating valve can adjust aperture according to inlet temperature,
Compressor outlet medium temperature is controlled by aftercooler inflow, regurgitant volume caused by the discontinuity of production is recycled to return
To intake header, automatically controlling for import and export temperature is realized.
Secondly, on-line cleaning method is to close the imported valve of reciprocating compressor, outlet valve, opens import buffering
Device, intercooler, at aftercooler three easily hardened equipment blowdown valve, then open steam valve, steam high temperature utilized to remove
Hardened naphthalene etc. is difficult inside equipment removes substance, ensures stable equipment operation, normal.The method only needs 10 minutes can be by equipment
Internal hardened substance is removed, and can come into operation at any time, the magazine that the influence of production is preferably minimized, and is washed out is passed through row
Dirty pipe is directly discharged to sump, unified to be recycled, environmental protection.
Operation principle:Referring to Fig. 1, the medium in medium entrance pipeline 1 passes through intake screen 2, enters in import buffer 3,
Via inlet temperature sample point 5, under the drive of compressor crankcase 9, into reciprocating compressor first-stage cylinder 6, by one
Grade compression enters intercooler 6 and cools down, and into after the compression of secondary cylinder 8, boosting, after being cooled down into aftercooler 11, is sent to use
Family, extra medium are back to via big return valve 14 in medium entrance pipeline 1, reexpansion, air-breathing, compression and exhaust four
A process;After 5 measured temperature of inlet temperature sample point is below or above 30 DEG C, pass through the electric control valve 12 in cooling water inlet 10
Control reduces the displacement of cooling water outlet 13, to realize the import and export of reciprocating compressor into the inflow of aftercooler 10
Temperature controls.
Back-flushing method is to realize that medium completely cuts off by closing reciprocating compressor imported valve 15, outlet valve 16,
Import buffer blowdown valve 4, intercooler blowdown valve 18, aftercooler blowdown valve 19 are opened, steam blowing mouth valve is opened
17, start to clean apparatus body and auxiliary device, cleaning, system can be completed in 10 minutes using the high temperature of steam, high pressure
One is emitted into oil sump by blow-off pipe, while by minimum limit is reduced to the influence of production, environment is protected not get dirty
Dye.
The waste heat of apparatus body is adequately utilized in this method, changes traditional heat preserving method, passes through automatic linkage tune
Section inflow realizes temperature control, hardened in import so as to avoid medium impurities;Meanwhile description finishes the impurity such as naphthalene
On-line cleaning method afterwards.Steam energy is both saved in this way, reduces heat preservation, maintenance expense, is extended unit and is used the longevity
Life, while the accuracy of unit temperature is also improved, reduce artificial adjusting, manpower is greatly saved, protects production environment.
It should be noted that above-described embodiment, protection domain not for the purpose of limiting the invention, in above-mentioned technical proposal
On the basis of made equivalents or replacement each fall within the range that the claims in the present invention are protected.
Claims (8)
1. a kind of reciprocating compressor automatic temperature control, which is characterized in that the automatic control device includes inlet tube
Road, import buffer, transmission pipeline, compression assembly, aftercooler, outlet conduit and reflux line, the inlet pipeline are logical
Import buffer connection transmission pipeline is crossed, the transmission pipeline connects aftercooler by compression assembly, and the aftercooler is logical
Cross outlet conduit, reflux line connection inlet pipeline.
2. reciprocating compressor automatic temperature control according to claim 1, which is characterized in that the compression assembly
Including first-stage cylinder, intercooler, secondary cylinder and coal press machine crankcase, the intercooler is arranged in first-stage cylinder and two level
Between cylinder, the coal press machine crankcase connects first-stage cylinder and secondary cylinder simultaneously, and the secondary cylinder connects aftercooler by pipeline
11。
3. reciprocating compressor automatic temperature control according to claim 2, which is characterized in that the inlet pipeline
On be provided with intake screen 2, steam blowing mouth 17 and imported valve 15 are additionally provided on inlet pipeline.
4. reciprocating compressor automatic temperature control according to claim 2 or 3, which is characterized in that the import
Inlet temperature sample point 5 is provided on transmission pipeline between buffer and first-stage cylinder.
5. reciprocating compressor automatic temperature control according to claim 4, which is characterized in that the outlet conduit
On be provided with outlet valve, one end of aftercooler connects cooling water outlet pipe, and the other end connects cooling water inlet pipe, described cold
But it is provided with electric control valve on water water inlet pipe.
6. reciprocating compressor automatic temperature control according to claim 5, which is characterized in that the reflux line
On be provided with electronic big return valve.
7. reciprocating compressor automatic temperature control according to claim 1, which is characterized in that the import buffering
Device is connected with blow-off line (4), and the intercooler is connected with blow-off line (19).
8. the back-flushing method of reciprocating compressor automatic temperature control, feature described in claim 1-7 any one
It is, the method is as follows:
1)Inlet temperature sample point(5)Detect import medium temperature;
2)When import medium temperature is higher than 30 DEG C, pass through PLC and cooling water inlet pipe(10)On electric control valve(12)Connection
Lock closes electric butterfly valve(12), inflow is reduced, control outlet temperature is at 60 DEG C;
3)When import medium temperature is less than 30 DEG C, pass through PLC and cooling water inlet pipe(10)On electric control valve(12)Connection
Lock opens electric butterfly valve(12), increase inflow, control outlet temperature is at 60 DEG C;
4)The regurgitant volume generated using pipeline internal medium is by the cooling medium back flow at 60 DEG C to inlet pipeline(1);
5)Inlet temperature sample point(5)Judge to import medium temperature, then be adjusted by interlocking, repeats 1)—4)
Step;
6)When there is impurity hardened, reciprocating compressor imported valve is closed(15), outlet valve(16)To realize that medium completely cuts off;
7)Open import buffer blowdown valve(4), intercooler blowdown valve(18), aftercooler blowdown valve(19);
8)Open steam blowing mouth valve(17), start to clean apparatus body and auxiliary device, utilize the high temperature of steam, high pressure
Cleaning can be completed in 10 minutes, it is unified to be emitted into oil sump by blow-off pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710225868.5A CN108691758B (en) | 2017-04-07 | 2017-04-07 | Automatic temperature control device for reciprocating compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710225868.5A CN108691758B (en) | 2017-04-07 | 2017-04-07 | Automatic temperature control device for reciprocating compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108691758A true CN108691758A (en) | 2018-10-23 |
| CN108691758B CN108691758B (en) | 2020-04-21 |
Family
ID=63843042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710225868.5A Active CN108691758B (en) | 2017-04-07 | 2017-04-07 | Automatic temperature control device for reciprocating compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108691758B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5529031A (en) * | 1978-08-19 | 1980-03-01 | Tokico Ltd | Oil-cooled compressor |
| GB2390874B (en) * | 2002-06-03 | 2004-06-02 | Kobe Steel Ltd | Oil-cooled compressor |
| CN201170161Y (en) * | 2008-03-28 | 2008-12-24 | 中国石油天然气股份有限公司 | Automatic control system for cooling water of gas compressor |
| CN202709582U (en) * | 2012-06-12 | 2013-01-30 | 西安陕鼓动力股份有限公司 | Temperature control device for inlet of industrial refrigeration compressor |
| CN203548113U (en) * | 2013-10-08 | 2014-04-16 | 安徽晋煤中能化工股份有限公司 | Airflow system capable of eliminating vibration of reciprocating compressor |
| CN104121736A (en) * | 2014-07-18 | 2014-10-29 | 合肥天鹅制冷科技有限公司 | Liquid cooling source unit with function of precisely controlling temperature and control method |
| CN204253313U (en) * | 2014-10-15 | 2015-04-08 | 柳工（柳州）压缩机有限公司 | Coal bed gas compressor |
| CN204678060U (en) * | 2014-12-31 | 2015-09-30 | 天津渤化中河化工有限公司 | A kind of thick acid anhydride delivery line being convenient to clear up |
-
2017
- 2017-04-07 CN CN201710225868.5A patent/CN108691758B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5529031A (en) * | 1978-08-19 | 1980-03-01 | Tokico Ltd | Oil-cooled compressor |
| GB2390874B (en) * | 2002-06-03 | 2004-06-02 | Kobe Steel Ltd | Oil-cooled compressor |
| CN201170161Y (en) * | 2008-03-28 | 2008-12-24 | 中国石油天然气股份有限公司 | Automatic control system for cooling water of gas compressor |
| CN202709582U (en) * | 2012-06-12 | 2013-01-30 | 西安陕鼓动力股份有限公司 | Temperature control device for inlet of industrial refrigeration compressor |
| CN203548113U (en) * | 2013-10-08 | 2014-04-16 | 安徽晋煤中能化工股份有限公司 | Airflow system capable of eliminating vibration of reciprocating compressor |
| CN104121736A (en) * | 2014-07-18 | 2014-10-29 | 合肥天鹅制冷科技有限公司 | Liquid cooling source unit with function of precisely controlling temperature and control method |
| CN204253313U (en) * | 2014-10-15 | 2015-04-08 | 柳工（柳州）压缩机有限公司 | Coal bed gas compressor |
| CN204678060U (en) * | 2014-12-31 | 2015-09-30 | 天津渤化中河化工有限公司 | A kind of thick acid anhydride delivery line being convenient to clear up |
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| Publication number | Publication date |
|---|---|
| CN108691758B (en) | 2020-04-21 |
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