CN209459133U - A kind of refrigeration equipment - Google Patents

Abstract

The utility model provides a kind of refrigeration equipment, comprising: shell, inside limit accommodation space；Circulation line is at least partially disposed in accommodation space, and refrigerant is equipped in circulation line, and refrigerant has combustibility；Adsorbent equipment is located in accommodation space, is configured to adsorb refrigerant after refrigerant leaks into outside circulation line.Refrigeration equipment adsorbs the combustible refrigerant of leakage by adsorbent equipment, and the combustible refrigerant that can effectively prevent leakage is met open fire and is ignited, and reduces refrigeration equipment the burning even risk of explosion.Simultaneously as this refrigeration equipment does not need to re-replace refrigerant system and designed, the leakage processing to refrigerant can be realized, method is easy to operate, simple possible.

Description

A kind of refrigeration equipment

Technical field

The utility model relates to temperature-adjusting devices, more particularly to a kind of refrigeration equipment.

Background technique

Refrigerant for heat exchange is common in the circulation line in the refrigeration equipments such as air-conditioning and refrigerator, due to existing The generally existing problem of environmental pollution of refrigerant, for environmental requirement, free of contamination combustible refrigerant substitution conventional refrigerants Technology is extremely urgent, however combustible refrigerant be applied to air-conditioning equipment, when leaking, encounter open fire be easy to happen burning, Fire even explodes, and brings great security risk to the use of user, therefore the leakage preventing technology of combustible refrigerant or lets out Drain process technology seems most important.

The existing safety protection technique for combustible refrigerant generally comprises following three kinds:

First kind main means are to enhance the leakproofness of the circulatory system and prevent from occurring blocking in the circulatory system, when flammable When refrigerant does not occur leakage, also just there is no the security risks of combustible refrigerant burning, but use such protecting hand merely Section carries out safety precaution, and effect is limited, it doesn't solve the problem fundamentally.

Second major class is to perform corresponding processing after combustible refrigerant leaks to it, and main realization rate is inspection It measures and is warned, the combustible refrigerant of leakage is extracted and be discharged to outdoor after combustible refrigerant leaks, takes quarantine measures Make leakage combustible refrigerant not in own system electrical component or other high-temperature components contacted, by construction improve The temperature value of combustible refrigerant is set to be reduced to burning point hereinafter, this kind of measure is makes the combustible refrigerant of leakage by various methods It is unsatisfactory for burning condition or reduces loss caused by due to combustible refrigerant burning.

Third major class is the more refrigerant systems of design, i.e., not only there is combustible refrigerant in system, but also there are non-combustible refrigeration Agent, combustible refrigerant are run under the lower environment of safety requirements, and nonflammable refrigerant is transported under the higher environment of safety requirements Row, flammable and nonflammable refrigerant interacts, to reach preferable refrigeration effect.But this kind of processing mode design cost And manufacturing cost is higher.

Utility model content

One purpose of the utility model is to provide for a kind of safe and reliable and low-cost refrigeration equipment.

Particularly, the utility model provides a kind of refrigeration equipment, comprising:

Shell, inside limit accommodation space；

Circulation line is at least partially disposed in accommodation space, and refrigerant is equipped in circulation line, and refrigerant has flammable Property；

Adsorbent equipment is located in accommodation space, is configured to carry out refrigerant after refrigerant leaks into outside circulation line Absorption.

Further, circulation line includes the heat exchanging part in accommodation space, and heat exchanging part includes bending section, adsorbent equipment It is set at bending section, the refrigerant leaked out for adsorbing bending section.

Further, circulation line includes the heat exchanging part in accommodation space, and heat exchanging part includes for carrying out heat exchange Fin, adsorbent equipment is set to fin.

Further, refrigerant is alkanes combustible, and adsorbent equipment includes adsorbent, and sorbent material is that metal is organic Frame, high-silica zeolite, hollow fiber ultrafiltration membrane, modified activated carbon, π-complex compound, zeolite molecular sieve, in attapulgite clay It is one or more.

Further, adsorbent equipment includes sealing and adsorbent, and seal portion configurations are followed at when refrigerant does not leak out Adsorbent is sealed when endless tube road, is failed with preventing adsorbent exposure for a long time, makes to inhale after refrigerant leaks out circulation line Attached dose exposed, so that adsorbent adsorbs the refrigerant of leakage.

Further, further includes:

Detection device, for detecting whether refrigerant leaks out circulation line；

Controller is connect with detection device, is configured to the leak condition of the refrigerant detected according to detection device and is controlled The operation of refrigeration equipment processed.

Further, detection device includes pressure detector, and pressure detector is used to detect the pressure in circulation line, and It is configured to generate the signal that refrigerant has leaked when detecting that the pressure in circulation line is less than preset pressure threshold；With/ Or

Detection device includes concentration detector, and concentration detector is used to detect the combustible refrigerant of the leakage in accommodation space Concentration, and be configured to generate the letter that has leaked of refrigerant when the concentration for detecting refrigerant is higher than preset concentration threshold Number.

Further, further includes:

Warning device is controlled by controller, and is configured to when detection device generates the signal after refrigerant leaks It alarms；Or

Warning device is controlled by controller, and is configured to when detection device generates the signal after refrigerant leaks Language message alarm is carried out, language message is used for the danger signal leaked to the combustible refrigerant that user expresses air-conditioning.

Further, further includes:

Supply air system is controlled by controller, is configured to generate when detection device generates the signal of refrigerant leakage By the air-flow of the combustible refrigerant guiding adsorbent of leakage.

Further, refrigeration equipment is air-conditioning.

Refrigeration equipment in the utility model adsorbs the combustible refrigerant of leakage by adsorbent equipment, Ke Yiyou It prevents the combustible refrigerant of leakage from meeting open fire and being ignited to effect, reduces refrigeration equipment the burning even risk of explosion.Together When, since this refrigeration equipment does not need to re-replace refrigerant system and designed, the leakage to refrigerant can be realized Processing, method is easy to operate, simple possible.

According to the accompanying drawings to the detailed description of the utility model specific embodiment, those skilled in the art will be more Add the above-mentioned and other purposes, advantages and features of clear the utility model.

Detailed description of the invention

Some specific realities of the utility model are described in detail by way of example and not limitation with reference to the accompanying drawings hereinafter Apply example.Identical appended drawing reference denotes same or similar part or part in attached drawing.It should be appreciated by those skilled in the art that The drawings are not necessarily drawn to scale.In attached drawing:

Fig. 1 is the structural block diagram according to the refrigeration equipment of the utility model one embodiment；

Fig. 2 is the structural schematic diagram according to the refrigeration equipment of the utility model one embodiment.

Specific embodiment

It is with reference to the accompanying drawings and embodiments, right in order to which the objects, technical solutions and advantages of the application are more clearly understood The application is further elaborated.It should be appreciated that specific embodiment described herein is only used to explain the application, and It is not used in restriction the application.

As shown in Figure 1, being the utility model preferred embodiment.

Refrigeration equipment, which is specifically as follows air-conditioning, refrigerator, refrigerator-freezer or freezer etc., can carry out the device of temperature adjusting, for side Just it is described, is illustrated below by air-conditioning of refrigeration equipment, it should be appreciated that refrigeration equipment should not only narrow sense be managed Solution is air-conditioning.

Air-conditioning in the present embodiment includes that shell 10 (can may be outside air conditioning chamber for the shell 10 in air conditioner indoor unit Shell 10 in machine, for the convenience of description, being illustrated below with the shell of air conditioner indoor unit 10), circulation line and Adsorbent equipment 30.Accommodation space is limited inside shell 10, a part of circulation line is set in the accommodation space of shell 10 (in other examples, circulation line can also be fully located in shell 10, such as when refrigeration equipment is refrigerator, circulation Pipeline is completely set up in the accommodation space of shell 10).Refrigerant is equipped in circulation line, refrigerant has combustibility, can To be interpreted as existing applied to all with flammable refrigerant on air-conditioning.Adsorbent equipment 30 is located in accommodation space, It is configured to adsorb refrigerant after refrigerant leaks into outside circulation line.Adsorbent equipment 30, which has combustible refrigerant, to be inhaled Attached effect specifically can behave as physical absorption (suction type of such as active carbon) or chemisorption (if iron powder is to vapor Suction type).Adsorbent equipment 30 in the present embodiment is mainly used for the combustible refrigerant that absorption leaks into accommodation space.

Particularly, in the present embodiment, flammable agent material is alkanes, and adsorbent equipment 30 includes adsorbent, adsorbent Material be metal organic frame, high-silica zeolite, hollow fiber ultrafiltration membrane, modified activated carbon, π-complex compound, zeolite molecular sieve, One of attapulgite clay is a variety of.Active force between the gas molecule of alkane and above-mentioned adsorbent material, including molecule Surface reaction forces between model ylid bloom action power, hydrogen bond, molecule and hole and capillary force between molecule etc., at these Under active force, gas molecule is rapidly absorbed into absorbent interior；When adsorbance increases, cohesion, which occurs, for gas molecule becomes liquid, It is stored under pore surface active force in the pore structure of adsorbent material prosperity；In above process, combustible refrigerant quilt Absorption and storage, while also having reached after refrigerant leaks and having been handled in time, having prevented from leaking to indoor effect.In other implementations In example, the material of refrigerant can also be other classifications, and correspondingly, adsorbent can also be made of other corresponding materials.

Refrigeration equipment in the present embodiment adsorbs the combustible refrigerant of leakage by adsorbent equipment 30, Ke Yiyou The combustible refrigerant for preventing leakage of effect is met open fire and is ignited, and refrigeration equipment the burning even risk of explosion are reduced.Together When, since this refrigeration equipment does not need to re-replace refrigerant system and designed, the leakage to refrigerant can be realized Processing, method is easy to operate, simple possible.After there is combustible refrigerant leakage and dangerous releasing, when being repaired again to air-conditioning Very simple, it is only necessary to reinforce the sealing effect of circulation line, replace adsorbent and refrigerant.

Circulation line includes the heat exchanging part 21 in accommodation space, and heat exchanging part 21 is equivalent to evaporator or the condensation of air-conditioning Device.Heat exchanging part 21 includes heat exchanging pipe and the fin 213 for radiating or absorbing heat that connect with heat exchanging pipe, and heat exchanging pipe is in It is bent detour shape comprising (in other embodiments, heat exchanging pipe can only include bending for straightway 212 and bending section 211 Section 211, entirety is in the shape of a spiral).The bending section 211 of heat exchanging pipe bends molding, and is connected with straightway 212 by Joining Technology Integrally, it will be deformed due to bending section 211 when bending, and when bending section 211 is connect with straightway 212 is likely to occur Leakproofness phenomenon not up to standard, therefore the seam crossing of the bending section 211 of heat exchanging pipe and bending section 211 and straightway 212 is system The biggish position of cryogen risk of leakage.It is dangerous in order to effectively prevent generating after leakage of refrigerant, adsorbent equipment 30 can be set in At the bending section 211 or junction of bending section 211 and straightway 212, for adsorbing bending section 211 or bending section 211 and straight line The refrigerant that the junction of section 212 leaks out.The specific position of adsorbent equipment 30 is how depending on actual conditions, such as inhales Adsorption device 30 can be close to the setting of bending section 211, can also be spaced and be arranged with bending section 211.Further, adsorbent equipment 30 is gone back It can be set in fin 213, can specifically be close to fin 213 or be spaced with fin 213 be arranged.In other embodiments, absorption dress The place that other combustible refrigerants are easy leakage can also be arranged in by setting 30.

Due to adsorbent equipment 30 after refrigerant leakage can automatic absorbing refrigerant, therefore detection system is not provided in the air-conditioning When whether cryogen has the device of leakage, adsorbent equipment 30 also can preferably work.But in order to accurate judgement refrigeration On the opportunity of agent leakage, so that adsorption effect is more preferable, in a kind of embodiment, air-conditioning further includes detection device 40 and controller 50. Detection device 40 can specifically include pressure detector or concentration sensing for detecting whether refrigerant leaks out circulation line Device.Pressure detector is used to detect the pressure in circulation line, and is configured to the pressure worked as detect in circulation line less than pre- If pressure threshold when generate the signal that has leaked of refrigerant, i.e., after refrigerant leaks, the pressure in circulation line becomes smaller, and presses After the pressure that force snesor senses the refrigerant in circulation line is less than preset threshold value, default refrigerant has been leaked and has been produced The signal of raw refrigerant leakage, and this signal is passed into controller 50.Concentration detector is for detecting letting out in accommodation space The concentration of the combustible refrigerant of leakage, and be configured to generate refrigeration when the concentration for detecting refrigerant is higher than preset concentration threshold The signal that agent has leaked, and this signal is passed into controller 50.It should be understood that detection device 40 can also be existing All structures for being able to detect that refrigerant and occurring leaking are not limited merely to above-mentioned pressure sensor and concentration sensing Device.Controller 50 is connect with the detection device 40, is configured to the leak condition of the refrigerant detected according to detection device 40 And control the operation of air-conditioning.Specifically, controller 50 can control the air-supply wind of air-conditioning after the signal for receiving refrigerant leakage Machine, compressor or other electric elements are closed, and 10 relative closure of shell of air-conditioning is closed and made to the wind deflector for controlling air-conditioning.

Adsorbent equipment 30 can be an individual component, or the combination of multiple components.When it is individual portion It can be only bulk material or film material etc. with adsorption capacity when part.Blocky adsorbent material and membranaceous adsorption material Expect the lower position of leakproofness for the circulation line that can be arranged in air-conditioning (at the bending section 211 of such as above-mentioned heat exchanging pipe). It may include the adsorbent with adsorption capacity and the carrier for loading adsorbent when it is multiple component combinations.

In order to enable the adsorption capacity of adsorbent equipment 30 will not be reduced because of the extension of service life, adsorbent equipment 30 can To include sealing and adsorbent, seal portion configurations are at adsorbent is sealed when refrigerant does not leak out circulation line, to prevent Adsorbent exposure for a long time and fail, keep adsorbent exposed after refrigerant leaks out circulation line, so that adsorbent is to letting out The refrigerant of leakage is adsorbed.I.e. under normal conditions, refrigerant does not leak, and adsorbent is sealed by sealing, so that absorption Agent will not lose adsorption capacity due to having adsorbed the impurity in air in air because of long-time exposure.When refrigerant goes out After now leaking, sealing is opened, so that the adsorbent in sealing be made to absorb the refrigerant leaked.Specifically, sealing is opened Opening and closing can be controlled by controller 50, and not generate the signal of refrigerant leakage in above-mentioned detection device 40 When, controller 50 controls sealing and is sealed, when above-mentioned detection device 40 generates the signal of refrigerant leakage, controller 50 Sealing is controlled to open.

Sealing can be the existing structure can arbitrarily simultaneously with sealing state and open state, for example, its It can be the simple box body with open-and-close mechanism, or can wrap adsorbent has leakproofness and can be torn Hermetic bag ripped etc..Adsorbent can also active adsorption refrigerating agent with passive adsorption refrigerant.When adsorbent is passively inhaled When attached refrigerant, only absorption flows through the refrigerant on its position periphery.It, can be by when adsorbent active adsorption refrigerating agent Spray the place leaked to refrigerant.

When adsorbent passive adsorption refrigerant, in a kind of embodiment, adsorbent equipment 30 can in band-like absorption band, And circulation line is fitted in, so that the refrigerant revealed in circulation line is adsorbed band absorption at the first time.Adsorbing band can be complete The outer surface for fitting in circulation line entirely, can also only fit at the easy leakage of circulation line, such as absorption band can be bonded At the bending section 211 of heat exchanging part 21, at the fin 213 of the seam crossing of bending section 211 and straightway 212 or heat exchanging part 21.For Facilitate attaching, absorption band can fit in circulation line along the extending direction of circulation line；In order to make absorption with close after attaching Closing property is more preferable, and absorption band can also be helically wound around circulation line.Specifically, absorption band may include the carrier with leakproofness Adsorbent with and for adsorption refrigerating agent, adsorbent are set to the surface for fitting in circulation line of carrier band, so that inhaling Attached dose is covered by carrier band, is failed with preventing adsorbent to be chronically exposed in air.In order to keep adsorbent covered More tight, in one embodiment, absorption band can also include the carrier band with leakproofness, the cladding with gas permeability Adsorbent with and for adsorption refrigerating agent.First face paste of clad strip connects carrier band together in circulation line, the second face Surface towards circulation line forms the accommodating chamber of strip between clad strip and carrier band, adsorbent is placed in accommodating chamber, when After absorption band is wound on circulation line, the refrigerant of leakage can be adsorbed by adsorbent through clad strip.

When adsorbent active adsorption refrigerating agent, in a kind of embodiment, adsorbent equipment 30 can also include injection apparatus 90, Injection apparatus 90 is used to sorbent injection (referring to that the refrigerant estimated may " at refrigerant leakage " at refrigerant leakage Leakage point, such as at the bending section 211 or fin 213 of heat exchanging part 21 among the above).Injection apparatus 90 can be with sealing one Body setting, such as the entirety of both sealing and injection apparatus 90 synthesis can be the internal spray bottle with positive pressure, work as generation After leakage, the opening of spray bottle is opened, the adsorbent of internal reservoir is ejected.In order to enable sorbent injection is uniform, it can So as to gas and be ejected together in adsorbent that is powdered or being in a liquid state in spray bottle.Further, it is imitated to enhance fire prevention Fruit can make to load inert gas in spray bottle, and on the one hand the concentration of refrigerant can be effectively reduced in inert gas, on the other hand It also has excellent flame retardant property.Injection apparatus 90 or blower fan structure, i.e., after there is refrigerant leakage, sealing It opens and exposes in powdered adsorbent, the blower of injection apparatus 90 is opened, and air-flow is generated, and adsorbent guiding refrigerant is let out Leak.

Adsorbent can in pencil injection and also it is fan-shaped spray, in pencil injection when, refrigerant can be concentrated and be sprayed to The easy leakage position of circulation line enhances adsorption efficiency.When the fan-shaped injection of refrigerant, refrigerant is lesser by an area Spray site sprays, and projected area is gradually expanded with spray distance, forms the jet space of taper, enables each adsorbent equipment 30 The range enough adsorbed becomes larger, and has been more effectively prevented from refrigerant and has overflowed shell 10.Further, in order to enable each absorption fills Set 30 coverage area it is wider, adsorbent equipment 30 can also be made to connect transfer 80, transfer 80 is configured in sealing Driving sealing rotation when spraying adsorbent, to change the injection direction of adsorbent, so that adsorbent carries out in accommodation space It strafes.Adsorbent leaks into outside shell 10 in order to prevent, in one embodiment, linkage 60 can be arranged in air-conditioning, After detection device 40 generates the signal of refrigerant leakage, controller 50 controls linkage 60 and seals accommodation space, to prevent The adsorbent of injection leaks outside.When shell 10 is air conditioner indoor unit, it can be arranged in the air inlet and air outlet of shell 10 and join Dynamic baffle, after detection device 40 detects leakage of refrigerant, the linked-baffle that controller 50 controls linkage 60 closes shell The air inlet and air outlet of body 10, to realize the closing to accommodation space.

In a kind of embodiment, it is additionally provided with warning device 70 in air-conditioning, is controlled by controller 50, and is configured to when inspection It alarms when surveying the signal after device 40 generates refrigerant leakage.Particularly, warning device 70 can carry out language alarm, Language message is used for the danger signal leaked to the combustible refrigerant that user expresses air-conditioning.I.e. alarm is not simple sound It rings, but the language message that user can identify, specially which kind of language is depending on the languages of user the country in which it is located.Utilize language Information, which carries out alarm, can enable a user to know danger signal, and user can be instructed to carry out security protection, and can pacify User emotion is comforted, user will not be caused panic.

In a kind of embodiment, air-conditioning is additionally provided with supply air system, and supply air system is controlled by controller 50, and is configured to When detection device 40 generates the signal of refrigerant leakage, generate the air-flow of the combustible refrigerant guiding adsorbent of leakage.I.e. When adsorbent is passive adsorption, the refrigerant of leakage can be oriented to adsorbent, enhancing by the air-flow of generation by supply air system The adsorption efficiency of adsorbent.When adsorbent is actively to adsorb, the air-flow shape of air-flow and sorbent injection that supply air system generates At liquidating, it can also enhance the adsorption efficiency of adsorbent.It should be noted that supply air system can for relative to conventional air conditioner and Say additional increased component, or the air supply device of air-conditioning itself, i.e. supply air system may include being used for for air-conditioning itself Exchanging air stream in shell 10 is exported into indoor blower, controller 50 can be moved or be turned by controlling this blower To realize the purpose of air-flow guiding adsorbent equipment 30.

When the capacity of the refrigerant of leakage is excessive, it will lead to the saturation of adsorbent equipment 30 to be adsorbed again, be Prevent the refrigerant charge of leakage excessive, in one embodiment, air-conditioning further includes the portion of attracting deposit, and it is in negative pressure shape that the portion of attracting deposit, which has, The storage chamber of state, the portion of attracting deposit are configured to the refrigerant in circulation line after detection device 40 generates the signal of refrigerant leakage It is drawn in storage chamber.Specifically, the portion of attracting deposit can be vacuum tank, and vacuum tank is connect with circulation line using valve, under normal conditions The chamber of attracting deposit of vacuum tank is not penetrated through with circulation line, when detection device 40 detects refrigerant leakage, can make controller 50 The valve controlled between vacuum tank and circulation line is opened, and the refrigerant in circulation line absorb and be deposited by vacuum tank immediately Storage.

Since the node in circulation line is numerous, the pressure of the refrigerant between each node has difference, it is difficult to will recycle All refrigerants in pipeline are drawn by one outlet, thus above-mentioned vacuum tank can it is in parallel go out more root canal roads come respectively with It connects at multiple nodes of circulation line, and multiple nodes is drawn simultaneously after leakage occurs in discovery combustible refrigerant. Due to being in gaseous state under refrigerant normality, therefore need biggish tank body that could draw to it, in one embodiment, Ke Yi Above-mentioned vacuum tank is set in outdoor unit, and the vacuum tank is connect with indoor circulation line, after detecting refrigerant leakage, Stop circulating for refrigerant, and indoor and outdoor refrigerant is separated, the vacuum tank being located outside is only by position Refrigerant in indoor circulation line is drawn, and can reduce the volume of vacuum tank in this way.

So far, although those skilled in the art will appreciate that the more of the utility model have been shown and described in detail herein A exemplary embodiment still, still can be according to the utility model public affairs in the case where not departing from the spirit and scope of the utility model The content opened directly determines or derives many other variations or modifications for meeting the utility model principle.Therefore, this is practical new The range of type is understood that and regards as to cover all such other variations or modifications.

Claims (10)

1. a kind of refrigeration equipment characterized by comprising

Shell, inside limit accommodation space；

Circulation line is at least partially disposed in the accommodation space, and refrigerant, the refrigerant tool are equipped in the circulation line There is combustibility；

Adsorbent equipment is located in the accommodation space, is configured to after the refrigerant leaks into outside the circulation line to institute Refrigerant is stated to be adsorbed.

2. refrigeration equipment according to claim 1, which is characterized in that

The circulation line includes the heat exchanging part in the accommodation space, and the heat exchanging part includes bending section, the absorption Device is set at the bending section, the refrigerant leaked out for adsorbing the bending section.

3. refrigeration equipment according to claim 1, which is characterized in that

The circulation line includes the heat exchanging part in the accommodation space, and the heat exchanging part includes for carrying out heat exchange Fin, the adsorbent equipment are set to the fin.

4. refrigeration equipment according to claim 1, which is characterized in that

The refrigerant is alkanes combustible, and the adsorbent equipment includes adsorbent, and the sorbent material is that metal is organic Frame, high-silica zeolite, hollow fiber ultrafiltration membrane, modified activated carbon, π-complex compound, zeolite molecular sieve, in attapulgite clay It is one or more.

5. refrigeration equipment according to claim 4, which is characterized in that

The adsorbent equipment includes sealing and adsorbent, the seal portion configurations at when the refrigerant do not leak out it is described The adsorbent is sealed when circulation line, is failed with preventing adsorbent exposure for a long time, when the refrigerant leaks out Make the adsorbent exposed after the circulation line, so that the adsorbent adsorbs the refrigerant of leakage.

6. refrigeration equipment according to claim 1, which is characterized in that further include:

Detection device, for detecting whether the refrigerant leaks out the circulation line；

Controller is connect with the detection device, is configured to the leakage of the refrigerant detected according to the detection device State and the operation for controlling the refrigeration equipment.

7. refrigeration equipment according to claim 6, which is characterized in that

The detection device includes pressure detector, and the pressure detector is used to detect the pressure in the circulation line, and It is configured to generate what the refrigerant had leaked when detecting that the pressure in the circulation line is less than preset pressure threshold Signal；And/or

The detection device includes concentration detector, and what the concentration detector was used to detect leakage in the accommodation space can The concentration of refrigerant is fired, and is configured to generate the system when the concentration for detecting the refrigerant is higher than preset concentration threshold The signal that cryogen has leaked.

8. refrigeration equipment according to claim 6, which is characterized in that further include:

Warning device is controlled by the controller, and is configured to after the detection device generates refrigerant leakage Signal when alarm；Or

Warning device is controlled by the controller, and is configured to after the detection device generates refrigerant leakage Signal when carry out language message alarm, the language message is used to express the danger that has leaked of combustible refrigerant of air-conditioning to user Dangerous signal.

9. refrigeration equipment according to claim 6, which is characterized in that further include:

Supply air system is controlled by the controller, is configured to generate the letter of the refrigerant leakage when the detection device Number when, generate and the combustible refrigerant of leakage be oriented to the air-flow of the adsorbent equipment.

10. -9 described in any item refrigeration equipments according to claim 1, which is characterized in that

The refrigeration equipment is air-conditioning.