CN213578243U

CN213578243U - Filtering device for refrigerant recovery filling machine

Info

Publication number: CN213578243U
Application number: CN202021599028.9U
Authority: CN
Inventors: 祝清
Original assignee: Hubei Tailu Technology Co ltd
Current assignee: Hubei Tailu Technology Co ltd
Priority date: 2020-08-04
Filing date: 2020-08-04
Publication date: 2021-06-29
Anticipated expiration: 2030-08-04

Abstract

The utility model discloses a filter device for a refrigerant recovery filling machine, which comprises a shell and a cover body arranged on the shell, wherein the shell forms a vent chamber with an opening at the top, the shell is provided with a first air inlet, a first air outlet and a sewage outlet, a first-stage filter screen and a second-stage filter screen are arranged in the vent chamber, the mesh diameter of the first-stage filter screen is larger than that of the second-stage filter screen, and a warning device is arranged on the bottom surface inside the filter device; the utility model discloses a filter equipment for filling machine is retrieved to refrigerant can filter most impurity for the refrigerant purity of retrieving is higher, also is convenient for retrieve recycling of refrigerant, and it is convenient to dismantle, is convenient for wash, sets up warning device and can remind the staff in time to wash filter equipment, and is more intelligent, accords with modern industry's intelligent development requirement gradually.

Description

Filtering device for refrigerant recovery filling machine

Technical Field

The utility model relates to a refrigerant is retrieved and is filtered technical field, concretely relates to refrigerant is retrieved filling machine filter equipment.

Background

The products using refrigerant circulation system, such as refrigerator, air conditioner, and vehicle air conditioner, utilize the phase change of refrigerant in the circulation system to generate heat absorption and heat release phenomena, so as to achieve the purposes of refrigeration, heating, and dehumidification. The conventional refrigerant circulation system generally includes a compressor, a condenser, etc., wherein a lubricant Oil used in the system is also called as Refrigeration Oil (Refrigeration Oil), which is mainly used to reduce the loss of the compressor, and the Refrigeration Oil can generate a sealing effect on the internal parts of the compressor, such as a shaft seal and a gasket, to prevent the gaseous refrigerant from leaking.

The refrigerant is easy to deteriorate after long-term use, so that the service life of the product is influenced, and the refrigeration effect is also influenced, so that the product can be periodically maintained by a refrigerant recovery machine; the maintenance process is that after the refrigerant in the compressor is conveyed to the refrigerant recovery machine, impurities such as rust slag, oil sludge, freezing oil and the like which are carried along with the refrigerant are separated by an oil separator in the recovery machine, the gaseous refrigerant with the separated impurities is conveyed to a downstream end for centralized treatment, and finally the gaseous refrigerant is refilled into the compressor for continuous use, so that the environmental pollution is reduced.

The existing filtering device for the refrigerant recovery and filling machine also has the following problems:

(1) the filtering effect is not good, and the purity of the recovered refrigerant is not high;

(2) the filter device is inconvenient to disassemble and difficult to clean;

(3) after impurities in the filtering device are accumulated, the cleaning is better when not known, so that the filtering effect is influenced when the cleaning frequency of the filtering device is too small; too many times of cleaning wastes human resources.

Based on the above situation, the utility model provides a filter equipment for filling machine is retrieved to refrigerant can effectively solve above problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a refrigerant is retrieved filling machine filter equipment. The utility model discloses a filter equipment for filling machine is retrieved to refrigerant includes the casing and sets up the lid on the casing, the casing forms a open-top's air vent, be provided with first air inlet, first gas outlet and drain on the casing, and be provided with one-level filter screen and second grade filter screen in the air vent, the mesh diameter ratio of one-level filter screen is big than the mesh diameter of second grade filter screen be provided with warning device on the inside bottom surface of filter equipment, warning device includes external power source, external switch, warning light, sets up spring and setting on the inside bottom surface of filter equipment are in be provided with the swash plate above the spring, the swash plate bottom surface is provided with first contact piece, the inside of casing is provided with the second contact piece corresponding with first contact piece, the external power source positive pole in proper order with external switch, warning light, The first contact piece is electrically connected, the negative electrode of the external power supply is electrically connected with the second contact piece, and a blocking plate is arranged on the inclined plate and at the end close to the sewage draining outlet; the utility model discloses a filter equipment for filling machine is retrieved to refrigerant can filter most impurity for the refrigerant purity of retrieving is higher, also is convenient for retrieve recycling of refrigerant, and it is convenient to dismantle, is convenient for wash, sets up warning device and can remind the staff in time to wash filter equipment, and is more intelligent, accords with modern industry's intelligent development requirement gradually.

The utility model discloses a following technical scheme realizes:

a filter device for a refrigerant recovery filling machine comprises a shell and a cover body arranged on the shell, wherein the shell forms a vent chamber with an opening at the top, a first air inlet, a first air outlet and a sewage outlet are arranged on the shell, a primary filter screen and a secondary filter screen are arranged in the vent chamber, the mesh diameter of the primary filter screen is larger than that of the secondary filter screen, a warning device is arranged on the inner bottom surface of the filter device and comprises an external power supply, an external switch, a warning lamp, a spring arranged on the inner bottom surface of the filter device and an inclined plate arranged on the spring, a first contact piece is arranged on the bottom surface of the inclined plate, a second contact piece corresponding to the first contact piece is arranged in the shell, the anode of the external power supply is electrically connected with the external switch, the warning lamp and the first contact piece in sequence, the negative pole of the external power supply is electrically connected with the second contact piece, and a blocking plate is arranged at the end, close to the sewage draining exit, of the inclined plate.

The primary filter screen and the secondary filter screen arranged on the filter device for the refrigerant recovery and filling machine can preliminarily filter some larger impurities in the refrigerant steam, wherein the warning device can remind a worker to clean the filter device in time; filter equipment is in the course of the work, and external switch is in the on-state, and when accumulational impurity was too much on the swash plate, can make the spring shrink, only when first contact piece and second contact piece contact back, the circuit switch-on, the warning light just can flash always, at this moment breaks off external switch, and the circuit disconnection stops midway in order to avoid filter work, still retrieves filter work with this time at this moment and continues to accomplish, waits for after the refrigerant retrieves filter work and accomplishes, washs filter equipment again.

Preferably, the inside baffler that is provided with of casing, the baffler will the plenum is cut apart into first air chamber and the second air chamber of mutual intercommunication, first air inlet is linked together with first air chamber, first gas outlet is linked together with the second air chamber, the one-level filter screen sets up this one end that is close to first air inlet in first air chamber, the second grade filter screen sets up in first air chamber, and is located the higher authority of one-level filter screen, warning device sets up this one side of first air chamber.

Preferably, an activated carbon adsorption layer is arranged in the second air chamber.

Therefore, the filtering effect is better, and the purity of the recovered refrigerant can be increased.

Preferably, an activated carbon adsorption layer and fiber filter cotton are sequentially arranged in the second air chamber along the flowing direction of the gas.

Preferably, the first-stage filter screen and the second-stage filter screen are detachably connected with the filter device, and the blocking plate is detachably connected with the inclined plate.

The design is convenient to install, and the later stage of cleaning the filtering device is convenient.

Preferably, a buzzer electrically connected with the external power supply and the warning lamp is arranged between the external power supply and the warning lamp.

People generally have less visual sense than auditory sense, and after the first contact piece is contacted with the second contact piece, the buzzer can better remind the worker of paying attention so as to clean the filtering device in time.

Compared with the prior art, the utility model, following advantage and beneficial effect have:

1. the filter device is provided with a primary filter screen and a secondary filter screen, and then is further provided with an activated carbon adsorption layer and fiber filter cotton, so that the integral filtering effect of the filter device is improved, and the purity of the recovered refrigerant is higher;

2. the filter device is convenient to disassemble, and is convenient for the following cleaning work;

3. the filtering device is provided with the warning device, so that a worker can be reminded to clean the filtering device timely, and the intelligent cleaning device is more intelligent.

Drawings

Fig. 1 is a schematic perspective view of a filtering apparatus according to embodiment 1 of the present invention;

fig. 2 is a schematic cross-sectional view of a filtering apparatus according to embodiment 1 of the present invention;

fig. 3 is a schematic perspective view of a filtering apparatus according to embodiment 2 of the present invention;

fig. 4 is an exploded schematic view of a filter device according to embodiment 2 of the present invention;

fig. 5 is a schematic structural view of a section of a filtering device according to embodiment 2 of the present invention;

fig. 6 is a schematic circuit structure diagram (one) of the filtering device of the present invention;

fig. 7 is a schematic circuit diagram (ii) of the filtering apparatus of the present invention.

Reference numerals: 11. a housing; 12. a cover body; 111. a breather chamber; 1111. a first air chamber; 1112. a second air chamber; 112. a first air inlet; 113. a first air outlet; 114. a sewage draining outlet; 115. a first-stage filter screen; 116. a secondary filter screen; 117. a barrier plate; 2. a warning device; 21. an external power supply; 22. an external switch; 23. a warning light; 24. a spring; 25. a sloping plate; 26. a first contact pad; 27. a second contact pad; 28. a buzzer; 400. an activated carbon adsorption layer; 401. and (5) fiber filter cotton.

Detailed Description

In order to make the technical solution of the present invention better understood by those skilled in the art, the following description of the preferred embodiments of the present invention is given with reference to the accompanying examples, but it should be understood that the drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of illustrating the present embodiments, certain portions of the drawings may be enlarged or reduced and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the present patent.

Example 1:

as shown in fig. 1 to 7, a filter device for a refrigerant recycling and filling machine includes a housing 11 and a cover 12 disposed on the housing 11, the housing 11 forms a ventilation chamber 111 with an open top, the housing 11 is provided with a first air inlet 112, a first air outlet 113 and a sewage outlet 114, the ventilation chamber 111 is provided with a first-stage filter screen 115 and a second-stage filter screen 116, the mesh diameter of the first-stage filter screen 115 is larger than that of the second-stage filter screen 116, a warning device 2 is disposed on the bottom surface inside the filter device, the warning device 2 includes an external power source 21, an external switch 22, a warning light 23, a spring 24 disposed on the bottom surface inside the filter device, and an inclined plate 25 disposed on the spring 24, the bottom surface of the inclined plate 25 is provided with a first contact piece 26, the housing 11 is provided with a second contact piece 27 corresponding to the first contact piece 26, the positive pole of the external power supply 21 is electrically connected with the external switch 22, the warning light 23 and the first contact piece 26 in sequence, the negative pole of the external power supply 21 is electrically connected with the second contact piece 27, and a blocking plate is arranged at the end, close to the sewage discharge port 114, of the inclined plate 25.

Example 2:

Further, in another embodiment, a baffle 117 is disposed inside the housing 11, the baffle 117 divides the ventilation chamber 111 into a first air chamber 1111 and a second air chamber 1112 which are communicated with each other, the first air inlet 112 is communicated with the first air chamber 1111, the first air outlet 113 is communicated with the second air chamber 1112, the primary filter 115 is disposed at the end of the first air chamber 1111 near the first air inlet 112, the secondary filter 116 is disposed in the first air chamber 1111 and above the primary filter 115, and the warning device 2 is disposed at the side of the first air chamber 1111.

Further, in another embodiment, an activated carbon adsorption layer 400 is disposed in the second air chamber 1112.

Further, in another embodiment, an activated carbon adsorption layer 400 and a fiber filter cotton 401 are sequentially disposed in the second air chamber 1112 along the flow direction of the gas.

Further, in another embodiment, the primary filter screen 115 and the secondary filter screen 116 are detachably connected to the filter device, and the blocking plate is detachably connected to the inclined plate 25.

Further, in another embodiment, a buzzer 28 electrically connected between the external power source 21 and the warning lamp 23 is provided.

The utility model discloses a filter equipment for filling machine is retrieved to refrigerant's theory of operation as follows:

working principle in example 1: refrigerant steam enters from a first air inlet 112 of the filtering device, and is filtered by a first-stage filter screen 115 and a second-stage filter screen 116, so that larger impurities can be filtered, a primary purification effect on the refrigerant can be achieved, the purified refrigerant is discharged from a first air outlet 113, when the filtering device is in a working process, an external switch 22 is in a connected state, when excessive impurities are accumulated on an inclined plate 25, a spring 24 can be contracted, only when a first contact piece 26 is in contact with a second contact piece 27 (the distance between the first contact piece 26 and the second contact piece 27 is adjustable), a circuit is connected, a warning lamp 23 can be always turned on, the external switch 22 is turned off, the circuit is turned off, in order to avoid stopping the filtering work midway, the refrigerant recovery and filtering work is continuously completed, after the refrigerant recovery and filtering work is completed, and cleaning the filtering device.

Working principle in example 2: refrigerant steam enters from a first air inlet 112 of the filtering device, and is filtered by a first-stage filter screen 115, a second-stage filter screen 116, an activated carbon adsorption layer 400 and fiber filter cotton 401, so that large impurities and fine impurities can be filtered, the refrigerant can be comprehensively purified, the purified refrigerant is discharged from a first air outlet 113, when the filtering device is in a working process, an external switch 22 is in a connected state, when too much impurities are accumulated on an inclined plate 25, a spring 24 can be contracted, only when a first contact piece 26 is contacted with a second contact piece 27 (the distance between the first contact piece 26 and the second contact piece 27 can be adjusted), a circuit is connected, a warning lamp 23 can flash all the time, the external switch 22 is closed, the circuit is disconnected, in order to avoid stopping the filtering work midway, the refrigerant recovery and filtering work is continuously completed, and after the refrigerant recovery and filtration work is finished, cleaning the filter device.

When the filtering device for the refrigerant recycling and filling machine works, the sewage outlet 114 is always in a closed state.

In addition, unless otherwise specified, in the present invention, if there are terms such as "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, rather than to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, the terms describing the orientation or positional relationship in the present invention are only used for illustrative purposes, and should not be construed as limiting the present invention, specific meanings of the above terms can be understood by those of ordinary skill in the art in light of the specific circumstances in conjunction with the accompanying drawings.

The above is only the preferred embodiment of the present invention, not to the limitation of the present invention in any form, all the technical matters of the present invention all fall into the protection scope of the present invention to any simple modification and equivalent change of the above embodiments.

Claims

1. The utility model provides a filter equipment for refrigerant recovery filling machine which characterized in that: comprises a shell (11) and a cover body (12) arranged on the shell (11), wherein the shell (11) forms an air chamber (111) with an open top, the shell (11) is provided with a first air inlet (112), a first air outlet (113) and a sewage outlet (114), the air chamber (111) is provided with a primary filter screen (115) and a secondary filter screen (116), the mesh diameter of the primary filter screen (115) is larger than that of the secondary filter screen (116), the inner bottom surface of the filter device is provided with a warning device (2), the warning device (2) comprises an external power supply (21), an external switch (22), a warning lamp (23), a spring (24) arranged on the inner bottom surface of the filter device and an inclined plate (25) arranged on the spring (24), the bottom surface of the inclined plate (25) is provided with a first contact piece (26), the inside of casing (11) is provided with second contact piece (27) corresponding with first contact piece (26), external power source (21) positive pole is connected with external switch (22), warning light (23), first contact piece (26) electricity in proper order, external power source (21) negative pole is connected with second contact piece (27) electricity this one end that just is close to drain (114) on swash plate (25) is provided with the barrier plate.

2. The filter device for a refrigerant recovery-filling machine according to claim 1, wherein: the inside baffler (117) that is provided with of casing (11), baffler (117) will breather chamber (111) is cut apart into first air chamber (1111) and second air chamber (1112) of mutual intercommunication, first air inlet (112) are linked together with first air chamber (1111), first gas outlet (113) are linked together with second air chamber (1112), this one end that is close to first air inlet (112) in first air chamber (1111) is set up to one-level filter screen (115), second grade filter screen (116) set up in first air chamber (1111), and are located the higher authority of one-level filter screen (115), warning device (2) set up this one side of first air chamber (1111).

3. The filter device for a refrigerant recovery-filling machine according to claim 2, wherein: an activated carbon adsorption layer (400) is arranged in the second air chamber (1112).

4. The filter device for a refrigerant recovery-filling machine according to claim 2, wherein: an activated carbon adsorption layer (400) and fiber filter cotton (401) are sequentially arranged in the second air chamber (1112) along the flowing direction of the gas.

5. The filter device for a refrigerant recovery-filling machine according to claim 1, wherein: the first-stage filter screen (115) and the second-stage filter screen (116) are detachably connected with the filter device, and the blocking plate is detachably connected with the inclined plate (25).

6. The filter device for a refrigerant recovery-filling machine according to any one of claims 1 to 5, wherein: and a buzzer (28) electrically connected with the external power supply (21) and the warning lamp (23) is arranged between the external power supply and the warning lamp.