Diffusion absorption type refrigeration system safety device
Technical field
The present invention relates to diffusion absorption type refrigeration system safety device.
Background technology
Many multiple-energy-source refrigerators using diffusion absorption refrigeration ice on caravan, that is to say, that this kind of refrigerator can use unidirectional current,
Alternating current or combustion gas are used as the energy.This refrigerator product apply highly developed on caravan, but consider caravan freedom
Mobile characteristic, the security requirement to product are higher.So in addition to the stability and reliability of positive control product, also
Consider to protect the extreme case that practical service environment is likely to occur.
The cold-producing medium of shuttling movement can be taken away the heat of generator under normal circumstances, such as bad to refrigerator operation, extremely
In the case of occur pipe for flowing of refrigerant road local stoppages, heat aggregation in generator position produces local temperature and raises.If no
Interrupt this process in time, it is possible to cause the intrinsic pressure material for drastically raising generation explosion or surrounding of igniting of refrigeration system.
Content of the invention
It is an object of the invention to overcoming the defect of prior art, there is provided a kind of diffusion absorption type refrigeration system is anti-with safety
Protection unit.
For achieving the above object, a kind of diffusion absorption type refrigeration system security protection of design the technical scheme is that
Device, the diffusion absorption type refrigeration system include pipe for flowing of refrigerant road, and the diffusion absorption type refrigeration system is by refrigerator electricity
Control plate control work;The safety device includes metal master, fuse, photoelectron emission device, photoelectric receiving arrangement;
The metal master is fixed on diffusion absorption type refrigeration system;
The fuse is fixed on metal master;
First passage and second channel is provided with the metal master;
The first passage, its one end and the insertion of pipe for flowing of refrigerant road, its other end are open;
The second channel open at both ends;The photoelectron emission device, photoelectric receiving arrangement are divided into second channel two ends,
The second channel is the light-path of photoelectron emission device and photoelectric receiving arrangement;
The first passage, the inner chamber of second channel are separately filled with low-melting alloy, and the low-melting alloy respectively will
First passage, second channel cut-off;
The electric-controlled plate connects fuse, photoelectron emission device and photoelectric receiving arrangement respectively;
The electric-controlled plate is provided with the broken circuit detection circuit triggered by fuse.
Preferably, in the fuse, the fusing point of melt is 90~110 DEG C.
Preferably, the fusing point of the low-melting alloy is 120~160 DEG C.
Preferably, the inner chamber of the first passage and second channel is filled up completely with by low-melting alloy respectively.
Preferably, the metal master periphery is provided with screw thread, and the metal master is by its periphery screw thread and diffusion absorption
Formula refrigeration system is fastened.
Preferably, the first passage and second channel are mutually perpendicular to.
Preferably, the first passage and second channel insertion.
Preferably, the metal master generally strip.
Preferably, the fusing point of the metal master is far above low-melting alloy and the fusing point of fused mass of fuse.
Fuse fuses when diffusion absorption type refrigeration system ambient temperature rises to melt fusing point, and broken circuit detection circuit is touched
Control signal is sent out, the gentle supply of cut-out electricity is simultaneously reported to the police.
If fuse fails, or due to other situations, causes in the continuation of diffusion absorption type refrigeration system ambient temperature
The fusing point of low-melting alloy is raised to, the low-melting alloy fusing in first passage, second channel, the system in pipe for flowing of refrigerant road
Cryogen sprays pressure release, can avoid the occurrence of the situation of refrigeration system explosion;Meanwhile, the second channel as light-path is turned on, photoelectricity
The luminous energy that discharger sends is received by photoelectric receiving arrangement, and optical signal is transmitted after being converted to the signal of telecommunication in photoelectric receiving arrangement
To electric-controlled plate, point out to report to the police, detect whether the energy has been turned off the extinguishing device successfully or in triggering caravan refrigerator cabinet.
The present invention can be avoided in the pipe for flowing of refrigerant road blocking of refrigeration system or using in the case of bad, refrigeration system
The local temperature of system rises sharply, and causes refrigeration system explosion or ambient substance of igniting.
Description of the drawings
Fig. 1 is the schematic diagram of the present invention.
Specific embodiment
With reference to the accompanying drawings and examples, the specific embodiment of the present invention is further described.Following examples are only
For technical scheme is clearly described, and can not be limited the scope of the invention with this.
The technical scheme that the present invention is embodied as is:
As shown in figure 1, a kind of diffusion absorption type refrigeration system safety device, the diffusion absorption type refrigeration system
Including pipe for flowing of refrigerant road, the diffusion absorption type refrigeration system is by refrigerator electric control plate control work;The security protection dress
Put including metal master 1, fuse 2, photoelectron emission device 3, photoelectric receiving arrangement 4;
The metal master 1 is fixed on diffusion absorption type refrigeration system;
The fuse 2 is fixed on metal master 1;
First passage 5 and second channel 6 are provided with the metal master 1;
The first passage 5, its one end and the insertion of pipe for flowing of refrigerant road, its other end are open;
6 open at both ends of the second channel;The photoelectron emission device 3, photoelectric receiving arrangement 4 are divided into second channel 6
Two ends, the second channel 6 are the light-path of photoelectron emission device 3 and photoelectric receiving arrangement 4;
The first passage 5, the inner chamber of second channel 6 are separately filled with low-melting alloy, the low-melting alloy difference
First passage 5, second channel 6 are separated;
The electric-controlled plate connects fuse 2, photoelectron emission device 3 and photoelectric receiving arrangement 4 respectively;
The electric-controlled plate is provided with the broken circuit detection circuit triggered by fuse 2.
In the fuse 2, the fusing point of melt is 90~110 DEG C.
The fusing point of the low-melting alloy is 120~160 DEG C.
The inner chamber of the first passage 5 and second channel 6 is filled up completely with by low-melting alloy respectively.
1 periphery of the metal master is provided with screw thread 7, and the metal master 1 is by its periphery screw thread 7 and diffusion absorbing system
Cooling system is fastened.
The first passage 5 and second channel 6 are mutually perpendicular to.
6 insertion of the first passage 5 and second channel.
The generally strip of the metal master 1.
Fusing point of the fusing point of the metal master 1 far above 2 melt of low-melting alloy and fuse.
Fuse 2 fuses when diffusion absorption type refrigeration system ambient temperature rises to melt fusing point, broken circuit detection circuit
Trig control signal, the gentle supply of cut-out electricity are simultaneously reported to the police.
If fuse 2 fails, or due to other situations, causes in the continuation of diffusion absorption type refrigeration system ambient temperature
The fusing point of low-melting alloy is raised to, the low-melting alloy fusing in first passage 5, second channel 6, in pipe for flowing of refrigerant road
Cold-producing medium sprays pressure release, can avoid the occurrence of the situation of refrigeration system explosion;Meanwhile, the second channel 6 as light-path is turned on, light
The luminous energy that electric discharger 3 sends is received by photoelectric receiving arrangement 4, and optical signal is converted to the signal of telecommunication in photoelectric receiving arrangement 4
After be transferred to electric-controlled plate, point out to report to the police, whether the detection energy has been turned off the fire extinguishing dress successfully or in triggering caravan refrigerator cabinet
Put.
The present invention can be avoided in the pipe for flowing of refrigerant road blocking of refrigeration system or using in the case of bad, refrigeration system
The local temperature of system rises sharply, and causes refrigeration system explosion or ambient substance of igniting.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, on the premise of without departing from the technology of the present invention principle, some improvements and modifications can also be made, these improvements and modifications
Also protection scope of the present invention should be regarded as.