CN2278185Y

CN2278185Y - Filter structure for drying filter of refrigeration machine

Info

Publication number: CN2278185Y
Application number: CN 96229743
Authority: CN
Inventors: 张良宣
Original assignee: DONGCHANG REFRIGERATING MACHINERY Co Ltd XINCHANG COUNTY
Current assignee: DONGCHANG REFRIGERATING MACHINERY Co Ltd XINCHANG COUNTY
Priority date: 1996-04-26
Filing date: 1996-04-26
Publication date: 1998-04-08
Anticipated expiration: 2006-04-26

Abstract

The utility model provides a filter structure for the drying filter of a refrigerating machine. The utility model is characterized in that double-layer filtering is composed of a net rack and a filtering net; the rack body of the net rack is cylindrical; the bottom of the rack body is provided with a set of net holes; the upper part of the rack body is bent to form a bent part; the upper part, of the filtering net, which is cylindrical is accommodated in a ring belt space between the bent part and the rack body; the bent part, the rack body and the upper part of the filtering net are mutually pressed, and are fixedly connected. The lower part of the filtering net forms a bag shape, and forms a middle filtering space with the bottom of the rack body; the nets holes at the bottom of the rack body can block the impact of a molecular sieve to form a buffering yawn, and thus the size of the net holes of the filtering net is reduced, enhancing filtering effect; the processing property of the structure of the utility model is improved.

Description

The filter new construction of refrigeration machine device for drying and filtering

The utility model relates to a kind of Purge gas or liquid device, and particularly a kind of parts that purify cold-producing medium are applicable to air-conditioner, refrigerator, refrigerator or other freezing equipments.

The device for drying and filtering that refrigeration system such as current refrigerator, refrigerator is generally used, the screen mesh size great majority of its filter are, basic size is 0.112mm, the diagonal angle line length is 0.158mm, and screen cloth directly contains molecular sieve, when this structure is passed through filter when cold-producing medium, molecular sieve produces motion, directly impact screen cloth, thereby make larger particles impurity enter capillary, easily form system jams by screen cloth; The rack rigidity of traditional structure filter is relatively poor, and rack and outer casing inner wall are difficult to precision-fit and form the gap, can make larger particles impurity produce system jams by the gap equally; The rack of traditional structure filter is connected with filter screen, very easily produce following situation, promptly identical tension, screen cloth is cut off, and pine coincide, a screen cloth part is not connected with rack, form breach, these all can cause large granular impurity to pass through filter and stop up capillary, well are connected with filter screen and will reach rack, then time-consuming, increase manufacturing cost.

The purpose of this utility model is the filter new construction that a kind of refrigeration machine device for drying and filtering will be provided, and it improves rack rigidity, and rack is connected identical good with filter screen, and can reduce the basic size of filter screen, improves the refrigeration system reliability of operation.

Utility model is achieved in that the rack support body of filter is tubular, a networking hole is established in the bottom of support body, the top of support body is bent into the tubular kink, kink and support body constitute a ring-band shape space, the ring-band shape space content is put the top of the filter screen of tubular, top three's pressing of kink, support body and filter screen is closely fixing, and an intermediate filtered space is formed on the bottom that the bottom of the filter screen of band mesh is at the bottom of bag shape and the support body, constitutes the double medium filtration structure.

Support body bottom web bore dia is 0.25 to 0.75 millimeter.

The novel advantage of this reality is:

1. establish mesh bottom the rack and constitute double medium filtration with filter screen, the filtration of rack bottom mesh can stop the impulsive force of molecular sieve, molecular sieve does not contact with filter screen, form a buffer gap, this just can reduce the filter screen mesh size, improves strainability, makes contour dimension can not pass through filter greater than 0.1 millimeter impurity, significantly reduce thereby enter amount of impurities capillaceous, avoid the system jams fault;

2. rack is double-deck cup-like structure, and under the condition of same wall thickness, its rigidity and intensity obviously improve, and make rack and outer casing inner wall can make tight gapless the cooperation, eliminates the traditional structure fit clearance and sews the numbness disease of large granular impurity;

3. kink, support body and filter screen three's the tight fixed structure of pressing no longer produces traditional structure and connects identical tension, the loose excessively defective of bringing therebetween.

The concrete structure of utility model is provided by following examples and accompanying drawing thereof.

Fig. 1 is the filter new construction longitudinal section of the utility model refrigeration machine device for drying and filtering.

Fig. 2 is the configuration schematic diagram of filter in device for drying and filtering.

With reference to Fig. 1,2, device for drying and filtering 1, drier 2, entrance point filter screen 3 is formed with the housing 4 that has import and export, its middle filtrator 1 is made up of rack 10 and filter screen 12, rack 10 becomes goblet with the metal sheet punching out, support body 101 upper ends at rack 10 bend with the mould roll extrusion, make to form to bend and enclose again in the kink 102 of support body 101 peripheries, kink 102 constitutes a ring-band shape space with support body 101,122 contact positions, bottom of the end of kink 102 and filter screen 12, if the arc section 105 that adapts with bottom 122 shapes, filter screen 12 in order to the protection contact position is not damaged, establish one group of equally distributed mesh 104 on support body 101 bottoms 103, the diameter of mesh 104 is 0.25 to 0.75 millimeter; The top 121 of filter screen 12 is cylindric, its underpart is a bag shape, the top 121 of filter screen 12 is contained in the endless belt space of support body 101 and kink 102 formations, again through the mould roll extrusion, make top 121 three's pressings of kink 102, support body 101 and filter screen 12 closely fixing, the bag shape part of filter screen 12 constitutes an intermediate filtered space 124 with the bottom 103 of support body 101.Filter screen 12 can be selected the structure of fine and close mesh 123 owing to no longer bear the molecular sieve impact, to improve the filtering function of filter.

During use, cold-producing medium is the mesh 104 on rack 10 bottoms 103 earlier, and mesh 104 can stop the impulsive force of molecular sieve, and cold-producing medium 124 arrives filter screens 12 through the intermediate filtered space thereupon, forms the structure of double medium filtration.

Claims

1. the filter new construction of a refrigeration machine device for drying and filtering, comprise filter, it is characterized in that: the support body (101) of rack (10) is tubular, a networking hole (104) is established in the bottom (103) of support body (101), the top of support body (101) is bent into tubular kink (102), kink (102) constitutes a ring-band shape space with support body (101), the ring-band shape space content is put the top (121) of tubular filter screen (12), kink (102), top (121) three's pressing of support body (101) and filter screen (12) is closely fixing, one intermediate filtered space (124) is formed on the bottom (103) that the bottom (122) of the filter screen (12) of band mesh (123) is bag shape and support body (101), constitutes the double medium filtration structure.

2. filter new construction according to claim 1 is characterized in that the end of kink (102) and the arc section (105) that establish contact position, bottom (122) and bottom (122) shape adapts of filter screen (12).

3. filter new construction according to claim 1 is characterized in that evenly laying mesh (104) is gone up in the bottom (103) of support body (101), and mesh (104) diameter is 0.25 to 0.75 millimeter.