CN206959398U - A kind of straight swollen refrigeration system with automatic hot air defrosting valve group - Google Patents
A kind of straight swollen refrigeration system with automatic hot air defrosting valve group Download PDFInfo
- Publication number
- CN206959398U CN206959398U CN201720121495.2U CN201720121495U CN206959398U CN 206959398 U CN206959398 U CN 206959398U CN 201720121495 U CN201720121495 U CN 201720121495U CN 206959398 U CN206959398 U CN 206959398U
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- CN
- China
- Prior art keywords
- valve
- hot air
- valve group
- automatic hot
- air defrosting
- 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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Abstract
The utility model discloses a kind of straight swollen refrigeration system with automatic hot air defrosting valve group, including condenser, reservoir, compressor set, discharge opeing bucket, hot gas main valve group, automatic hot air defrosting valve group, evaporator；The condenser is sequentially connected as liquid feeding pipeline with reservoir, automatic hot air defrosting valve group, evaporator, it is drain line to be sequentially connected by evaporator, automatic hot air defrosting valve group, discharge opeing bucket, compressor set and return to condenser, it is return line to be sequentially connected by evaporator, automatic hot air defrosting valve group, compressor set and return to condenser, and hot gas main valve group, automatic hot air defrosting valve group, evaporator are sequentially connected as hot gas line；The utility model realizes fully automated and safer hot gas defrosting, safer, improves efficiency.
Description
Technical field
The utility model belongs to technical field of refrigeration equipment, and in particular to a kind of straight swollen system with automatic hot air defrosting valve group
Cooling system.
Background technology
The defrosting of straight swollen refrigeration system has electrochemical frost, water defrosting, hot gas defrosting etc. at present.Wherein hot gas defrosting saves the most
Can, and defrosting effect is good, while beneficial to the oil for taking away accumulation in evaporator, improve heat exchange efficiency.But hot gas defrosting is to control
It is required that very high, and high-pressure hot gas (especially ammonia system) if into end evaporator do not control pressure, discharge opeing etc. have it is very big
It is dangerous.Known many freezer leakage accidents there are many to be caused in hot gas defrosting.
Utility model content
The utility model provides a kind of straight swollen refrigeration system with automatic hot air defrosting valve group to solve Problems Existing.
The technical solution of the utility model is：
A kind of straight swollen refrigeration system with automatic hot air defrosting valve group, including condenser, reservoir, compressor set, discharge opeing
Bucket, hot gas main valve group, automatic hot air defrosting valve group, evaporator；The condenser and reservoir, automatic hot air defrosting valve group, steaming
Hair device is sequentially connected as liquid feeding pipeline, and return is sequentially connected by evaporator, automatic hot air defrosting valve group, discharge opeing bucket, compressor set
Condenser is drain line, and it is muffler to be sequentially connected by evaporator, automatic hot air defrosting valve group, compressor set and return to condenser
Road, hot gas main valve group, automatic hot air defrosting valve group, evaporator are sequentially connected as hot gas line；
The component of the automatic hot air defrosting valve group is separately positioned on return line, heat supplying pipeline, drain line and hot gas
On pipeline, automatic hot air defrosting valve group includes stop valve a；Filter b；Check-valves c；Bypass solenoid valve d；Bypass solenoid valve j；Electricity
Magnet valve e；Hot gas solenoid valve f；Liquid supply electromagnetic valve g；Draining solenoid valve k；Expansion valve h；Pneumatic operated valve i, sets successively on hot gas line
Stop valve a, filter b, magnetic valve e are put, in magnetic valve e both ends connecting bypass magnetic valve d, is set gradually in return line
Stop valve a, pneumatic operated valve i, stop valve a, the pneumatic operated valve i on pneumatic operated valve i both ends connecting bypass magnetic valve j, return line lead to
Cross the front end that hot gas solenoid valve f is connected to hot gas line magnetic valve e, set gradually on liquid feeding pipeline stop valve a, filter b,
Liquid supply electromagnetic valve g, expansion valve h, the expansion valve h on liquid feeding pipeline is connected on rear side of the stop valve a of return line, in drain line
On set gradually stop valve a, check-valves c, draining solenoid valve k, filter b, stop valve a.
It is further preferred that the magnetic valve e is hot gas solenoid valve.
It is further preferred that the unlatching of the automatic hot air defrosting valve group, closing, time interval are to automatically control, it is real
Completely automatic and safer hot gas defrosting is showed.
It is further preferred that setting constant pressure valve in the hot gas defrosting main valve group, ensure that the hot gas pressure into end exists
Below certain pressure, hypertonia is avoided to damage evaporator, it is safer.
It is further preferred that a set of automatic hot air defrosting valve group connection separate unit evaporator or a set of automatic hot air defrosting
Valve group connects more evaporators.I.e. a set of automatic hot air defrosting valve group is separate unit evaporator or is more evaporator defrostings simultaneously.
The beneficial effects of the utility model are：
1st, fully automated and safer hot gas defrosting is realized.
2nd, bypass solenoid valve d setting, a small amount of hot gas is introduced into evaporator balance pressure, be then just passed through hot gas, keep away
Exempt from a large amount of hot gas and be directly entered evaporator, evaporator is impacted, it is safer.
3rd, bypass solenoid valve j setting, make slowly to drop relative to the main muffler of system, the higher evaporimeter internal pressure of pressure
It is low, elevated pressures can be avoided directly to rapidly enter low-pressure system, avoid producing liquid hammer, cause the accident, it is safer.
4th, after defrosting, draining solenoid valve k is closed so that because the refrigerant liquid of defrosting condensation has rested on evaporator
It is interior, follow-up process of refrigerastion can be continued to participate in, improves efficiency.
The 5th, constant pressure valve is set in hot gas defrosting main valve group, ensure that the hot gas pressure into end below certain pressure, is kept away
Exempting from hypertonia damages evaporator, safer.
Brief description of the drawings
Fig. 1 is the schematic diagram of the straight swollen refrigeration system with automatic hot air defrosting valve group；
Fig. 2 is the schematic diagram of automatic hot air defrosting valve group in Fig. 1；
Wherein：1 is condenser；2 be reservoir；3 be compressor set；4 be discharge opeing bucket；5 be hot gas main valve group；6 be automatic
Hot gas defrosting valve group；7 be evaporator；A is stop valve；B is filter；C is check-valves；D is bypass solenoid valve；J is bypass electricity
Magnet valve；E is hot gas solenoid valve；F is hot gas solenoid valve；G is liquid supply electromagnetic valve；K is draining solenoid valve；H is expansion valve；I is gas
Dynamic valve.
Embodiment
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, with reference to embodiments, to this
Utility model is further elaborated.It should be appreciated that specific embodiment described herein is only explaining this practicality
It is new, it is not used to limit the utility model.
Below in conjunction with the accompanying drawings and specific embodiment is further described to application principle of the present utility model.
Embodiment 1, such as Fig. 1, a kind of straight swollen refrigeration system with automatic hot air defrosting valve group, including condenser 1, reservoir
2nd, compressor set 3, discharge opeing bucket 4, hot gas main valve group 5, automatic hot air defrosting valve group 6, evaporator 7；The condenser 1 and reservoir
2nd, automatic hot air defrosting valve group 6, evaporator 7 are sequentially connected as liquid feeding pipeline, by evaporator 7, automatic hot air defrosting valve group 6, row
It is drain line that liquid bucket 4, compressor set 3, which are sequentially connected and return to condenser 1, by evaporator 7, automatic hot air defrosting valve group 6, compression
It is return line that unit 3, which is sequentially connected and returns to condenser 1, and hot gas main valve group 5, automatic hot air defrosting valve group 6, evaporator 7 are successively
It is connected as hot gas line；
Such as Fig. 2, the component of the automatic hot air defrosting valve group is separately positioned on return line, heat supplying pipeline, drain line
On hot gas line, automatic hot air defrosting valve group includes stop valve a；Filter b；Check-valves c；Bypass solenoid valve d；Bypass electromagnetism
Valve j；Magnetic valve e；Hot gas solenoid valve f；Liquid supply electromagnetic valve g；Draining solenoid valve k；Expansion valve h；Pneumatic operated valve i, on hot gas line
Set gradually stop valve a, filter b, magnetic valve e, in magnetic valve e both ends connecting bypass magnetic valve d, in return line according to
Secondary setting stop valve a, pneumatic operated valve i, stop valve a are pneumatic on pneumatic operated valve i both ends connecting bypass magnetic valve j, return line
Valve i is connected to hot gas line magnetic valve e front end by hot gas solenoid valve f, and stop valve a, mistake are set gradually on liquid feeding pipeline
Filter b, liquid supply electromagnetic valve g, expansion valve h, the expansion valve h on liquid feeding pipeline are connected on rear side of the stop valve a of return line, arranged
Stop valve a, check-valves c, draining solenoid valve k, filter b, stop valve a are set gradually on liquid pipeline.
It is further preferred that the magnetic valve e is hot gas solenoid valve.
It is further preferred that the unlatching of the automatic hot air defrosting valve group 6, closing, time interval are to automatically control, it is real
Completely automatic and safer hot gas defrosting is showed.
It is further preferred that setting constant pressure valve in the hot gas defrosting main valve group 5, ensure that the hot gas pressure into end exists
Below certain pressure, hypertonia is avoided to damage evaporator, it is safer.
Melt it is further preferred that a set of automatic hot air defrosting valve group 6 connects the automatic hot air of separate unit evaporator 7 or a set of
White valve group 6 connects more evaporators 7.I.e. a set of automatic hot air defrosting valve group is separate unit evaporator or is that more evaporators melt simultaneously
Frost.
Automatic defrosting process：During defrosting, liquid supply electromagnetic valve g is closed, and is stopped this road feed flow → hot gas main valve group 5 and is opened → electricity
Magnet valve f is opened, and pneumatic operated valve i is closed → open bypass solenoid valve d, a small amount of hot gas is entered by the feed pipe of evaporator 7
After 7 → certain time of evaporator, bypass solenoid valve d is closed, hot gas solenoid valve e is opened, a large amount of hot gas is entered into evaporator 7
Row defrosting, while draining solenoid valve k is opened, defrosting discharge opeing is back to discharge opeing bucket 4 by discharging tube.
After the completion of defrosting, hot gas solenoid valve e is closed, stops the row of closing after feeding hot gas → certain time toward evaporator 7
Liquid electromagnetic valve k, and bypass solenoid valve j is first opened, evaporimeter internal pressure is slowly lowered to system return air pressure → certain time
Afterwards, bypass solenoid valve j is closed, and closing hot gas solenoid valve f and hot gas main valve group 5 opens pneumatic operated valve i, completes defrosting
Journey.
Specific embodiment of the present utility model is the foregoing is only, is not limited to the utility model, for
For those skilled in the art, the utility model can have various modifications and variations.It is all in spirit of the present utility model and former
Any modification, equivalent substitution and improvements made within then etc., should be included within the scope of protection of the utility model.
Claims (5)
1. a kind of straight swollen refrigeration system with automatic hot air defrosting valve group, it is characterised in that including condenser (1), reservoir
(2), compressor set (3), discharge opeing bucket (4), hot gas main valve group (5), automatic hot air defrosting valve group (6), evaporator (7)；It is described cold
Condenser (1) and reservoir (2), automatic hot air defrosting valve group (6), evaporator (7) are sequentially connected as liquid feeding pipeline, by evaporator
(7) it is drain line that, automatic hot air defrosting valve group (6), discharge opeing bucket (4), compressor set (3), which are sequentially connected and return to condenser (1),
It is return line to be sequentially connected by evaporator (7), automatic hot air defrosting valve group (6), compressor set (3) and return to condenser (1), heat
Gas main valve group (5), automatic hot air defrosting valve group (6), evaporator (7) are sequentially connected as hot gas line；
The component of the automatic hot air defrosting valve group is separately positioned on return line, heat supplying pipeline, drain line and hot gas line
On, automatic hot air defrosting valve group includes stop valve (a)；Filter (b)；Check-valves (c)；Bypass solenoid valve (d)；Bypass solenoid valve
(j)；Magnetic valve (e)；Hot gas solenoid valve (f)；Liquid supply electromagnetic valve (g)；Draining solenoid valve (k)；Expansion valve (h)；Pneumatic operated valve (i),
Stop valve (a), filter (b), magnetic valve (e) are set gradually on hot gas line, in the both ends connecting bypass electricity of magnetic valve (e)
Magnet valve (d), stop valve (a), pneumatic operated valve (i), stop valve (a) are set gradually in return line, connected at the both ends of pneumatic operated valve (i)
Connect bypass solenoid valve (j), the pneumatic operated valve (i) in return line is connected to hot gas line magnetic valve (e) by hot gas solenoid valve (f)
Front end, stop valve (a), filter (b), liquid supply electromagnetic valve (g), expansion valve (h), feed pipe are set gradually on liquid feeding pipeline
Expansion valve (h) on road is connected on rear side of the stop valve (a) of return line, and stop valve (a) is set gradually in drain line, is stopped
Return valve (c), draining solenoid valve (k), filter (b), stop valve (a).
2. the straight swollen refrigeration system according to claim 1 with automatic hot air defrosting valve group, it is characterised in that the electromagnetism
Valve (e) is hot gas solenoid valve.
3. the straight swollen refrigeration system according to claim 1 with automatic hot air defrosting valve group, it is characterised in that described automatic
The unlatching of hot gas defrosting valve group (6), closing, time interval are to automatically control.
4. the straight swollen refrigeration system according to claim 1 with automatic hot air defrosting valve group, it is characterised in that the hot gas
Constant pressure valve is set in defrosting main valve group (5).
5. the straight swollen refrigeration system according to claim 1 with automatic hot air defrosting valve group, it is characterised in that described a set of
Automatic hot air defrosting valve group (6) connection separate unit evaporator (7) or a set of automatic hot air defrosting valve group (6) connect more evaporators
(7)。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720121495.2U CN206959398U (en) | 2017-02-10 | 2017-02-10 | A kind of straight swollen refrigeration system with automatic hot air defrosting valve group |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720121495.2U CN206959398U (en) | 2017-02-10 | 2017-02-10 | A kind of straight swollen refrigeration system with automatic hot air defrosting valve group |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206959398U true CN206959398U (en) | 2018-02-02 |
Family
ID=61377836
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720121495.2U Expired - Fee Related CN206959398U (en) | 2017-02-10 | 2017-02-10 | A kind of straight swollen refrigeration system with automatic hot air defrosting valve group |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206959398U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110173951A (en) * | 2019-04-30 | 2019-08-27 | 中国联合工程有限公司 | The method of hot working fluid adverse current in liquid supply pipe is prevented when a kind of air-cooler defrosting |
-
2017
- 2017-02-10 CN CN201720121495.2U patent/CN206959398U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110173951A (en) * | 2019-04-30 | 2019-08-27 | 中国联合工程有限公司 | The method of hot working fluid adverse current in liquid supply pipe is prevented when a kind of air-cooler defrosting |
| CN110173951B (en) * | 2019-04-30 | 2021-01-19 | 中国联合工程有限公司 | Method for preventing hot working medium from flowing reversely in liquid supply pipe during defrosting of air cooler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180202 Termination date: 20210210 |