CN204085307U - One is exempted to unpick and wash chiller system - Google Patents
One is exempted to unpick and wash chiller system Download PDFInfo
- Publication number
- CN204085307U CN204085307U CN201420459873.4U CN201420459873U CN204085307U CN 204085307 U CN204085307 U CN 204085307U CN 201420459873 U CN201420459873 U CN 201420459873U CN 204085307 U CN204085307 U CN 204085307U
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- Prior art keywords
- butterfly valve
- electric butterfly
- cooler
- pipe
- water inlet
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- Expired - Fee Related
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Abstract
The utility model proposes one to exempt to unpick and wash chiller system.Comprise: the cooler be connected with outlet pipe with water inlet pipe respectively, wherein first mouth of pipe of cooler connects outlet pipe, and second mouth of pipe of cooler connects water inlet pipe; The electro connecting pressure gauge be connected with water inlet pipe; The electro connecting pressure gauge be connected with outlet pipe; Electric butterfly valve, one end is connected with water inlet pipe, and the other end is connected with outlet pipe, is in closed condition; Electric butterfly valve, one end is connected with water inlet pipe, and the other end is connected with outlet pipe, is in closed condition; Respectively with the comparator of electro connecting pressure gauge and electric contact pressure list catenation, poor for the pressure reading calculating electro connecting pressure gauge and electro connecting pressure gauge, when pressure reading difference is greater than predetermined threshold value, send triggering signal to electric butterfly valve and electric butterfly valve; Electric butterfly valve is in open mode after receiving triggering signal; Electric butterfly valve is in open mode after receiving triggering signal.
Description
Technical field
The utility model relates to cooling technology field, more specifically, relates to one and exempts to unpick and wash chiller system.
Background technology
Cooler is a class of heat transmission equipment, in order to cooling fluid.Usually be that cooling agent is to remove heat with water or air.There are straight cooler, dividing wall type cooler, spray cooler, jacket type cooler and coil pipe type cooler etc.Be widely used in the electric equipments such as high-power silicon rectifier, generating set, induction furnace and intermediate frequency furnace supporting.
As everyone knows, present water pollutions is serious, and chiller water again great majority directly extracts from rivers, and the inside is mingled with the difficult rubbish decomposed such as polybag.After these rubbish enter straight cooler, the effect due to waterpower makes it block or is pasted onto the entrance of little copper pipe, accumulates over a long period and causes flow section to reduce gradually, even just may cover several copper pipes and have a strong impact on its cooling effect by a polybag.
Facts have proved, polybag be pasted onto entrance very difficult fall, unless taken cleaning apart.When not taking cooler apart, generally can only clear up the polybag blocking or be pasted onto little copper pipe entrance by the method strengthening hydraulic pressure, can only run counter to desire like this, make polybag press more firm and more firm under the effect of waterpower, be more difficult to clean out.Contaminate expired looking except blocking or the polybag being pasted onto little copper pipe entrance, then cooler is washed in dismounting of having to.But cooler does not allow dismounting in a lot of operation, as empty cooler and the oil cooler of generating set, etc.
Utility model content
The utility model embodiment proposes one and exempts to unpick and wash chiller system, and not dismounting can realize rinsing cooler.
The technical scheme of the utility model embodiment is as follows:
One is exempted to unpick and wash chiller system, comprising:
The cooler (1) be connected with outlet pipe with water inlet pipe respectively, wherein first mouth of pipe of cooler (1) connects outlet pipe, and second mouth of pipe of cooler (1) connects water inlet pipe;
The electro connecting pressure gauge (2) be connected with water inlet pipe;
The electro connecting pressure gauge (3) be connected with outlet pipe;
Electric butterfly valve (2110), one end is connected with water inlet pipe, and the other end is connected with outlet pipe, and described electric butterfly valve (2110) is in closed condition;
Electric butterfly valve (2112), one end is connected with water inlet pipe, and the other end is connected with outlet pipe, and described electric butterfly valve (2112) is in closed condition;
The comparator (4) be connected with electro connecting pressure gauge (2) and electro connecting pressure gauge (3) respectively, poor with the pressure reading of electro connecting pressure gauge (3) for calculating electro connecting pressure gauge (2), when described pressure reading difference is greater than predetermined threshold value, send triggering signal to electric butterfly valve (2110) and electric butterfly valve (2112);
Electric butterfly valve (2110) is in open mode after receiving described triggering signal, and water inlet pipe is in connected state via described electric butterfly valve (2110) and first mouth of pipe of cooler (1);
Electric butterfly valve (2112) is in open mode after receiving described triggering signal, and outlet pipe is in connected state via described electric butterfly valve (2112) and second mouth of pipe of cooler (1).
The empty cooler that described cooler (1) is generating set or oil cooler.
Also comprise the stop valve (2101) be connected with water inlet pipe.
Also comprise electric butterfly valve (2102) and electric butterfly valve (2111), wherein electric butterfly valve (2102) one end is connected with water inlet pipe, and one end is connected with electric butterfly valve (2111); Electric butterfly valve (2111) is also connected with second mouth of pipe of cooler.
Also comprise electric butterfly valve (2103), wherein electric butterfly valve (2103) one end is connected with first mouth of pipe of cooler, and the other end is connected with outlet pipe.
As can be seen from technique scheme, exempt to unpick and wash chiller system to comprise: the cooler (1) be connected with outlet pipe with water inlet pipe respectively, wherein first mouth of pipe of cooler (1) connects outlet pipe, and second mouth of pipe of cooler (1) connects water inlet pipe; The electro connecting pressure gauge (2) be connected with water inlet pipe; The electro connecting pressure gauge (3) be connected with outlet pipe; Electric butterfly valve (2110), one end is connected with water inlet pipe, and the other end is connected with outlet pipe, and described electric butterfly valve (2110) is in closed condition; Electric butterfly valve (2112), one end is connected with water inlet pipe, and the other end is connected with outlet pipe, and described electric butterfly valve (2112) is in closed condition; The comparator (4) be connected with electro connecting pressure gauge (2) and electro connecting pressure gauge (3) respectively, poor with the pressure reading of electro connecting pressure gauge (3) for calculating electro connecting pressure gauge (2), when described pressure reading difference is greater than predetermined threshold value, send triggering signal to electric butterfly valve (2110) and electric butterfly valve (2112); Electric butterfly valve (2110) is in open mode after receiving described triggering signal, and water inlet pipe is in connected state via described electric butterfly valve (2110) and first mouth of pipe of cooler (1); Electric butterfly valve (2112) is in open mode after receiving described triggering signal, and outlet pipe is in connected state via described electric butterfly valve (2112) and second mouth of pipe of cooler (1).The utility model can realize to cooler exempt from unpick and wash and on-line automatic backwash.
And safely, fast and efficiently, largest benefit is " limit is rinsed, and also limit cools " to the utility model.Without the need to loaded down with trivial details dismounting, both do not shut down, not waste of manpower and financial resources again.Be applicable to the cooler of the little copper pipe of various types of cooler, particularly in-line arrangement.Certainly, do not allow the cooler of dismounting particularly applicable in operation, as empty cooler and the oil cooler of generating set.
Accompanying drawing explanation
Fig. 1 is for exempt to unpick and wash chiller system structure chart according to the utility model;
Fig. 2 starts control circuit figure according to the utility model backwash;
Fig. 3 is according to the utility model backwash closing control line map.
Detailed description of the invention
For making the purpose of this utility model, technical scheme and advantage clearly, below in conjunction with accompanying drawing, the utility model is described in further detail.
The utility model utilizes former cooling line, only needs simple and easyly install pipeline and electric butterfly valve and control circuit thereof additional, realizes on-line automatic backwash cooler by opening or close corresponding butterfly valve.The feature of this design is safely, fast and efficiently, and largest benefit is " limit is rinsed, and also limit cools ".Without the need to loaded down with trivial details dismounting, both do not shut down, not waste of manpower and financial resources again.Be applicable to the cooler of the little copper pipe of various types of cooler, particularly in-line arrangement.Wherein, in operation, do not allow the cooler of dismounting particularly applicable, as empty cooler and the oil cooler of generating set, etc.
Fig. 1 is for exempt to unpick and wash chiller system structure chart according to the utility model.
As shown in Figure 1, of the present utility modelly exempt to unpick and wash chiller system and comprise:
The cooler 1 be connected with outlet pipe with water inlet pipe respectively, wherein the first mouth of pipe A of cooler 1 connects outlet pipe, and the second mouth of pipe B of cooler 1 connects water inlet pipe; Water inlet pipe realizes water inlet by water supply water, and outlet pipe realizes water outlet by sewer outlet.
This system also comprises the electro connecting pressure gauge 2 be connected with water inlet pipe and the electro connecting pressure gauge 3 be connected with outlet pipe.Electro connecting pressure gauge 2 can measure the water inlet pipe hydraulic pressure drawing tie point place, and electro connecting pressure gauge 3 can measure the outlet pipe hydraulic pressure drawing tie point place.
Particularly, electro connecting pressure gauge is widely used in the industrial departments such as oil, chemical industry, metallurgy, power station, machinery or the supporting middle various fluid medium pressures measured without explosion danger of electromechanical equipment.Usually, electro connecting pressure gauge, through supporting the use with corresponding electric device (as relay and frequency converter etc.), can realize through instrument the object automatically controlling and transmit (warning) to the various gas of tested (control) pressure and liquid medium.Electro connecting pressure gauge can help electric contact set, shell, adjusting device and terminal box (connector assembly) etc. to form by measuring system, indication mechanism, magnetic.Electro connecting pressure gauge based on the bourdon tube in measuring system under the pressure effect of measured medium, the end of bourdon tube is forced to produce corresponding elastic deformation one displacement, give amplification by pull bar through the transmission of gear drive, to be indicated on scale by by measured value by the instruction (together with contact) on fixed gear.Meanwhile, when it to contact the instantaneous of (dynamic circuit breaker or dynamic circuit connector) with the contact (upper limit or lower limit) on setting pointer, the circuit in control system is caused to be disconnected or connect, to reach the object automatically controlling and transmit warning.
This system also comprises:
Electric butterfly valve 2110, one end is connected with water inlet pipe, and the other end is connected with outlet pipe, and described electric butterfly valve 2110 is in closed condition;
Electric butterfly valve 2112, one end is connected with water inlet pipe, and the other end is connected with outlet pipe, and described electric butterfly valve 2112 is in closed condition;
The comparator 4 be connected with electro connecting pressure gauge 2 and electro connecting pressure gauge 3 respectively, poor with the pressure reading of electro connecting pressure gauge 3 for calculating electro connecting pressure gauge 2, when pressure reading difference between electro connecting pressure gauge 2 and electro connecting pressure gauge 3 is greater than predetermined threshold value, send triggering signal to electric butterfly valve 2110 and electric butterfly valve 2112;
Electric butterfly valve 2110 is in open mode after receiving described triggering signal, and water inlet pipe is in connected state via described electric butterfly valve 2110 with first mouth of pipe of cooler 1;
Electric butterfly valve 2112 is in open mode after receiving described triggering signal, and outlet pipe is in connected state via described electric butterfly valve 2112 with second mouth of pipe of cooler 1.
In one embodiment:
Cooler 1 can be specifically embodied as empty cooler or the oil cooler of generating set, etc.Below the instantiation of cooler 1 is enumerated in detail.It will be appreciated by those of skill in the art that this enumerating is only exemplary, in fact cooler 1 goes for the cooler of any type, is particularly useful for the cooler not allowing dismounting.
In one embodiment, the stop valve 2101 be connected with outlet pipe is also comprised.By this stop valve, intake tunnel can be opened or closed.
In one embodiment:
Also comprise electric butterfly valve 2102 and electric butterfly valve 2111, wherein electric butterfly valve 2102 one end is connected with water inlet pipe, and one end is connected with electric butterfly valve 2111; Electric butterfly valve 2111 is also connected with the second mouth of pipe B of cooler.
In one embodiment:
Also comprise electric butterfly valve 2103, wherein electric butterfly valve 2103 one end is connected with the first mouth of pipe A of cooler, and the other end is connected with outlet pipe.
Particularly, when cooler 1 entrance or export blocked or after being pasted with polybag, cooler entrance and exit will mineralization pressure poor.The hydraulic pressure of porch can be measured by electro connecting pressure gauge 2, the hydraulic pressure in exit can be measured by electro connecting pressure gauge 3, when difference between the hydraulic pressure and the hydraulic pressure in exit of porch reaches the threshold value preset, then assert that cooler is blocked, then can perform back flush blowdown.
When difference between the hydraulic pressure and the hydraulic pressure in exit of porch does not reach the threshold value preset, cooler 1 normally runs, and now the path of cooling water is: first mouth of pipe A-→ electric butterfly valve 2103-of the second mouth of pipe B-→-→ cooler 1 of technical water supply water-→ stop valve 2101-→ electric butterfly valve 2102-→ electric butterfly valve 2111-→ cooler 1 " → drain into tail water (now electric butterfly valve 2110 and electric butterfly valve 2112 are in closed condition) ".
When difference between the hydraulic pressure and the hydraulic pressure in exit of porch reaches the threshold value preset, cooler 1 performs backwash, and now the path of cooling water is: second mouth of pipe B-→ electric butterfly valve 2112-of first mouth of pipe A-→ cooler 1 of technical water supply water-→ stop valve 2101-→ electric butterfly valve 2102-→ electric butterfly valve 2110-→ cooler 1 " → drain into tail water (now electric butterfly valve 2103 and electric butterfly valve 2111 are in closed condition) ".This path illustrates that cooling water have passed through cooler equally, remain cooling effect, and cooling water flows counterflow through cooler, thus all right blowdown, especially can wash away the polybag that pipeline is piled up.
Fig. 2 starts control circuit figure according to the utility model backwash; Fig. 3 is according to the utility model backwash closing control line map.
Illustrate electric butterfly valve in fig 2 open or close the cut-away drawing of loop circuit, the electric butterfly valve 2102 wherein in accompanying drawing 1, electric butterfly valve 2103, electric butterfly valve 2110, the cut-away drawing of electric butterfly valve 2111, electric butterfly valve 2112 is identical.
In like manner, for each electric butterfly valve, outlet auxiliary reclay normal opened contact 1ZJ3,3ZJ3,5ZJ3,7ZJ3 that electric butterfly valve is opened in representative are also identical with 8ZJ4 with outlet auxiliary reclay normal opened contact 2ZJ4,4ZJ4,6ZJ4 of closedown electric butterfly valve.Wherein:
Auxiliary reclay 1ZJ opens electric butterfly valve 2110, and its outlet normal opened contact is 1ZJ3;
Auxiliary reclay 3ZJ opens electric butterfly valve 2112, and its outlet normal opened contact is 3ZJ3;
Auxiliary reclay 6ZJ closes electric butterfly valve 2103, and its outlet normal opened contact is 6ZJ4;
Auxiliary reclay 8ZJ closes electric butterfly valve 2111, and its outlet normal opened contact is 8ZJ4.
Time relay 1SJ plays the effect of delayed start-up electric butterfly valve 2112, and its time-delay contact is 1SJ1;
Time relay 2SJ plays the effect of time-delay closing electric butterfly valve 2103, and its time-delay contact is 2SJ1;
Time relay 3SJ plays the effect of time-delay closing electric butterfly valve 2111, and its time-delay contact is 3SJ1.
DCF2110, DCF2112, DCF2103 and DCF2111 are standard-sized sheet or the complete shut-down travel switch of its numbering butterfly valve respectively.
In fig. 3:
Auxiliary reclay 7ZJ opens electric butterfly valve 2111, and its outlet normal opened contact is 1ZJ3;
Auxiliary reclay 5ZJ opens electric butterfly valve 2103, and its outlet normal opened contact is 1ZJ3;
Auxiliary reclay 4ZJ closes electric butterfly valve 2112, and its outlet normal opened contact is 1ZJ4;
Auxiliary reclay 2ZJ closes electric butterfly valve 2110, and its outlet normal opened contact is 1ZJ4.
Time relay 4SJ plays the effect of delayed start-up electric butterfly valve 2103, and its time-delay contact is 4SJ1;
Time relay 5SJ plays the effect of time-delay closing electric butterfly valve 2112, and its time-delay contact is 5SJ1;
Time relay 6SJ plays the effect of time-delay closing electric butterfly valve 2110, and its time-delay contact is 6SJ1;
DCF2111, DCF2103, DCF2112 and DCF2110 are standard-sized sheet or the complete shut-down travel switch of its numbering butterfly valve respectively.
When cooler entrance is blocked or after being pasted with polybag, cooler entrance and exit will mineralization pressure poor.As can be seen from Figure 2, if change-over switch QK1 is allocated to " automatically " position, when pressure differential reaches a timing, this backwash design just can be started working when affecting the former cooling effect of cooler hardly automatically, first auxiliary reclay 1ZJ is started and locking through the upper limit contact of entrance electro connecting pressure gauge 2 and the lower limit contact of outlet electro connecting pressure gauge 3, then successively start-up time relay 1SJ, auxiliary reclay 3ZJ, time relay 2SJ, auxiliary reclay 6ZJ, time relay 3SJ and auxiliary reclay 8ZJ enters unlatching backwashing procedures, finally open electric butterfly valve 2110-→ delayed start-up electric butterfly valve 2112-→ time-delay closing electric butterfly valve 2103-→ time-delay closing electric butterfly valve 2111, cooler is made to be in backwash duty.
In like manner, cooler also can be manually made to be in backwash duty if change-over switch QK1 is allocated to " manually " position, at this no longer repeated description.In backwashing procedures carries out, each electric butterfly valve all can have standard-sized sheet or complete shut-down indicator lamp by its position switch DCF2110 (unlatching), DCF2112 (unlatching), DCF2103 (cut out) and DCF2111 (cut out), is convenient to remind staff to note.
When backwash indicator lamp is bright, indicate that cooler is in backwash duty, and cut off whole automatic backwash startup control circuit by the normally closed auxiliary contact 9ZJ1 of auxiliary reclay 9ZJ, backwash starts electric loop end-of-job automatically.
Consider and automatically control there is situation about breaking down, the utility model has also added on-the-spot " automatically, manually, stopping " change-over switch QK1 and the design such as start button AN1 or X button AN2, both can open or close corresponding electric butterfly valve by distant place crawl start button, can open or close corresponding electric butterfly valve by on-site manual again, ensureing that backwash is working properly and carry out.
This backwash design, again make use of the effect of waterpower well, back flush cooler, makes the rubbish of the porch originally blocking or be pasted onto little copper pipe, the polybag particularly pasted, just rinse thoroughly at once.During backwash, the path of cooling water is: second mouth of pipe B-→ electric butterfly valve 2112-of first mouth of pipe A-→ cooler 1 of technical water supply water-→ stop valve 2101-→ electric butterfly valve 2102-→ electric butterfly valve 2110-→ cooler 1 " → drain into tail water (now electric butterfly valve 2103 and electric butterfly valve 2111 are in closed condition) ".This path illustrates that cooling water equally have passed through cooler, remains cooling effect.
From backwash closing control line map, when thinking that cooler manually exits backwash state, only change-over switch QK2 need be allocated to " manually " position, direct startup auxiliary reclay 7ZJ, then successively start-up time relay 4SJ, auxiliary reclay 5ZJ, time relay 5SJ, auxiliary reclay 4ZJ, time relay 6SJ and auxiliary reclay 2ZJ enters cooler and normally runs working procedure, finally open electric butterfly valve 2111-→ delayed start-up electric butterfly valve 2103-→ time-delay closing electric butterfly valve 2112-→ time-delay closing electric butterfly valve 2110, cooler is in and normally runs duty.Turn to normal operation duty program at cooler from backwash, each electric butterfly valve all can have standard-sized sheet or complete shut-down indicator lamp by its position switch DCF2111 (unlatching), DCF2103 (unlatching), DCF2112 (cut out) and DCF2110 (cut out), is convenient to remind staff to note.When cooler normally run relay indicating light bright time, cut off whole automatic backwash closing control circuit by the normally closed auxiliary contact 10ZJ1 of auxiliary reclay 10ZJ.
In like manner, consider that control circuit has situation about breaking down, this design has yet added designs such as on-the-spot " automatically, manually, stopping " change-over switch QK2 and start button AN1 or X button AN2 (sharing with unlatching control circuit), both can open or close corresponding electric butterfly valve by distant place crawl start button, can open or close corresponding electric butterfly valve by on-site manual again, ensureing that backwash is closed and normally carry out.As can be seen from Figure 1, when cooler normally runs, the path of cooling water is: first mouth of pipe A-→ electric butterfly valve 2103-of the second mouth of pipe B-→-→ cooler 1 of technical water supply water-→ stop valve 2101-→ electric butterfly valve 2102-→ electric butterfly valve 2111-→ cooler 1 " → drain into tail water (now electric butterfly valve 2110 and electric butterfly valve 2112 are in closed condition) ".
Make a general survey of backwash start control circuit figure and backwash closing control line map known, each electric butterfly valve has two auxiliary reclays to control to open or cut out respectively, and two auxiliary reclay lockings mutually in electric control circuit, avoid unlatching or closing motion to carry out simultaneously, make control circuit safely, reliably.As electric butterfly valve 2110 is just controlled and mutual locking by auxiliary reclay 1ZJ and 2ZJ.
The above, be only preferred embodiment of the present utility model, is not intended to limit protection domain of the present utility model.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (5)
1. exempt to unpick and wash a chiller system, it is characterized in that, comprising:
The cooler (1) be connected with outlet pipe with water inlet pipe respectively, wherein first mouth of pipe of cooler (1) connects outlet pipe, and second mouth of pipe of cooler (1) connects water inlet pipe;
The electro connecting pressure gauge (2) be connected with water inlet pipe;
The electro connecting pressure gauge (3) be connected with outlet pipe;
Electric butterfly valve (2110), one end is connected with water inlet pipe, and the other end is connected with outlet pipe, and described electric butterfly valve (2110) is in closed condition;
Electric butterfly valve (2112), one end is connected with water inlet pipe, and the other end is connected with outlet pipe, and described electric butterfly valve (2112) is in closed condition;
The comparator (4) be connected with electro connecting pressure gauge (2) and electro connecting pressure gauge (3) respectively, poor with the pressure reading of electro connecting pressure gauge (3) for calculating electro connecting pressure gauge (2), when described pressure reading difference is greater than predetermined threshold value, send triggering signal to electric butterfly valve (2110) and electric butterfly valve (2112);
Electric butterfly valve (2110) is in open mode after receiving described triggering signal, and water inlet pipe is in connected state via described electric butterfly valve (2110) and first mouth of pipe of cooler (1);
Electric butterfly valve (2112) is in open mode after receiving described triggering signal, and outlet pipe is in connected state via described electric butterfly valve (2112) and second mouth of pipe of cooler (1).
2. according to claim 1 exempting from unpicks and washes chiller system, it is characterized in that, the empty cooler that described cooler (1) is generating set or oil cooler.
3. according to claim 1 exempting from unpicks and washes chiller system, it is characterized in that, also comprises the stop valve (2101) be connected with water inlet pipe.
4. according to claim 1 exempting from unpicks and washes chiller system, it is characterized in that, also comprise electric butterfly valve (2102) and electric butterfly valve (2111), wherein electric butterfly valve (2102) one end is connected with water inlet pipe, and one end is connected with electric butterfly valve (2111); Electric butterfly valve (2111) is also connected with second mouth of pipe of cooler.
5. according to claim 1 exempting from unpicks and washes chiller system, it is characterized in that, also comprises electric butterfly valve (2103), and wherein electric butterfly valve (2103) one end is connected with first mouth of pipe of cooler, and the other end is connected with outlet pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420459873.4U CN204085307U (en) | 2014-08-15 | 2014-08-15 | One is exempted to unpick and wash chiller system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420459873.4U CN204085307U (en) | 2014-08-15 | 2014-08-15 | One is exempted to unpick and wash chiller system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204085307U true CN204085307U (en) | 2015-01-07 |
Family
ID=52178010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420459873.4U Expired - Fee Related CN204085307U (en) | 2014-08-15 | 2014-08-15 | One is exempted to unpick and wash chiller system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204085307U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108953116A (en) * | 2018-08-15 | 2018-12-07 | 蚌埠艾普压缩机制造有限公司 | A kind of washable high-effect cooling device of hydrogenation stations hydrogen gas compressor |
-
2014
- 2014-08-15 CN CN201420459873.4U patent/CN204085307U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108953116A (en) * | 2018-08-15 | 2018-12-07 | 蚌埠艾普压缩机制造有限公司 | A kind of washable high-effect cooling device of hydrogenation stations hydrogen gas compressor |
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| 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: 20150107 Termination date: 20160815 |
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| CF01 | Termination of patent right due to non-payment of annual fee |