CN214534512U

CN214534512U - Anti-blocking valve for refrigerating system

Info

Publication number: CN214534512U
Application number: CN202120782632.3U
Authority: CN
Inventors: 沈庆强; 赵子华
Original assignee: Linyi Ice And Snow Refrigeration Equipment Co ltd
Current assignee: Linyi Ice And Snow Refrigeration Equipment Co ltd
Priority date: 2021-04-16
Filing date: 2021-04-16
Publication date: 2021-10-29
Anticipated expiration: 2031-04-16

Abstract

The utility model relates to a refrigeration plant technical field, specifically speaking relates to a refrigerating system is with anti-sticking choke valve. The electromagnetic valve comprises a valve body, a sealing seat ring, a valve plate, a screw rod, a valve cover, a V-shaped ring, an O-shaped ring and a hand wheel, wherein a stainless steel sleeve is fixed at the inner end of the valve cover, the screw rod penetrates through the stainless steel sleeve, and a magnetic ring is assembled between the screw rod and the stainless steel sleeve; a stainless steel retaining ring is fixed on the bottom surface of the valve plate, and a round magnetic sheet is fixed in the stainless steel retaining ring. Anti-sticking hinders valve adopts the magnetic ring and the automatic metal impurities who adsorbs among ammonia or the freon refrigeration medium of circle magnetic sheet, and metal impurities can not be washed away again after being adsorbed and break away from the entering medium, and like this, after system operation certain time, the refrigeration medium will not have metal impurities again to solved the card of traditional valve and hindered and revealed the problem, fully ensured refrigerating system safety and stability operation, also avoided the valve card to reveal the environmental pollution that the refrigerant caused after dying simultaneously.

Description

Anti-blocking valve for refrigerating system

Technical Field

The utility model relates to a refrigeration plant technical field, specifically speaking relates to a refrigerating system is with anti-sticking choke valve.

Background

In the prior art, large ammonia and freon refrigerating systems using liquid ammonia or freon as media are basically closed circulation systems, and the structure of a valve used in the system is shown in fig. 1, and the large ammonia and freon refrigerating systems comprises a valve body 1, a sealing seat ring 2, a valve plate 3, a screw rod 4, a valve cover 5, a V-shaped ring 6, an O-shaped ring 7 and a hand wheel 8, wherein the hand wheel 8 is rotated to drive the screw rod 4 to rotate, the screw rod 4 drives the valve plate 3 to axially move along the screw rod 4, when the valve plate 3 leaves the sealing seat ring 2, the valve is opened, and when the valve plate 3 is in close contact with the sealing seat ring 2, the valve is closed.

In the construction process of a refrigerating system, impurities such as welding slag, scrap iron and the like are usually left in a system pipeline, and meanwhile, in the system pipeline after running for many years, impurities and some fine metal particles can be generated due to mechanical wear, and the impurities and the metal particles can run along with a refrigerant. Impurities and metal particles entering the gap between the thread of the screw rod 4 and the thread of the valve cover 5 can cause the screw rod 4 to be blocked and not to rotate; when closing the valve, valve plate 3 compresses tightly with the contact of sealing seat circle 2, and tiny metallic impurity of adhesion on the sealed face of valve plate 3 can damage the sealed face of 3 sealing faces of valve plate or sealing seat circle 2, causes the valve and can't close tightly and produce the internal leakage, seriously influences system normal operating, brings certain potential safety hazard for production simultaneously.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a refrigerating system is with preventing sticking valve to solve foretell technical problem.

In order to solve the above problems, the utility model adopts the following technical scheme:

the utility model provides a refrigerating system is with anti-sticking valve, includes valve body, sealing seat circle, valve plate, screw rod, valve gap, V type circle, O type circle and hand wheel, its characterized in that: a stainless steel sleeve is fixed at the inner end of the valve cover, the screw rod penetrates through the stainless steel sleeve, and a magnetic ring is assembled between the screw rod and the stainless steel sleeve; a stainless steel retaining ring is fixed on the bottom surface of the valve plate, and a round magnetic sheet is fixed in the stainless steel retaining ring.

Has the advantages that: compared with the prior art, the anti-sticking hinders the valve and adopts powerful magnet (magnetic ring 13 and circle magnetic sheet 12) automatic adsorption ammonia or the metallic impurity in the freon refrigeration medium, metallic impurity can not be washed away again after being adsorbed and break away from the entering medium, and like this, every valve on the system pipeline is all adsorbing metallic impurity, after system operation certain time, there is no metallic impurity again in the refrigeration medium, thereby the card of having solved traditional valve hinders and reveals the problem, fully ensure refrigeration system safety and stability operation, the environmental pollution who reveals the refrigerant and cause after having avoided the valve card to die has also been avoided simultaneously.

Drawings

FIG. 1 is a schematic diagram of a conventional valve used in a prior art refrigeration system;

fig. 2 is a schematic structural diagram of an embodiment of the present invention;

fig. 3 is a partially enlarged view of fig. 2.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the following detailed description.

Example (b):

referring to fig. 2 and 3, the anti-sticking valve for the refrigeration system in this embodiment includes a valve body 1, a sealing seat ring 2, a valve plate 3, a screw rod 4, a valve cover 5, a V-shaped ring 6, an O-shaped ring 7, and a hand wheel 8. A stainless steel sleeve 14 is fixed on the inner end of the valve cover 5, the screw 4 penetrates through the stainless steel sleeve 14, and a magnetic ring 13 is arranged between the screw 4 and the stainless steel sleeve 14; a stainless steel retaining ring 11 is fixed on the bottom surface of the valve seat 3, and a round magnetic sheet 12 is fixed in the stainless steel retaining ring 11.

The working principle of the anti-blocking valve in the embodiment is briefly described as follows:

when the valve is opened, ammonia or freon medium enters the valve. When passing through the valve plate 3, the metal impurities in the medium are firmly adsorbed by the round magnetic sheet 12 and are not separated. After the medium passes through the valve plate 3, metal impurities in the medium can be firmly adsorbed by the magnetic ring 13 when moving to the thread clearance between the threads of the screw rod 4 and the valve cover 5, and even if the screw rod 4 rotates, the metal impurities cannot intrude into the meshing clearance between the male threads of the screw rod 4 and the female threads of the valve cover 5, so that the screw rod 4 cannot be blocked and cannot rotate.

Prevent that card hinders valve adopts the automatic metal impurities who adsorbs among ammonia or the freon refrigerant medium of powerful magnet (magnetic ring 13 and circle magnetic sheet 12), metal impurities can not be washed away again after being adsorbed and break away from the entering medium, and like this, every valve on the system pipeline is all adsorbing metal impurities, after system operation certain time, the refrigerant medium will not have metal impurities again, thereby the card of having solved traditional valve hinders and reveals the problem, fully ensure refrigerating system safety and stability operation, the environmental pollution who reveals the refrigerant and cause after also having avoided the valve card to die simultaneously.

The above is only the embodiment of the present invention, not the limitation of the patent scope of the present invention, all the equivalent structures made by the contents of the specification and the drawings are directly or indirectly applied to other related technical fields, all the same principle is within the patent protection scope of the present invention.

Claims

1. The utility model provides a refrigerating system is with anti-sticking valve, includes valve body (1), sealing seat circle (2), valve plate (3), screw rod (4), valve gap (5), V type circle (6), O type circle (7) and hand wheel (8), its characterized in that: a stainless steel sleeve (14) is fixed on the inner end of the valve cover (5), the screw (4) penetrates through the stainless steel sleeve (14), and a magnetic ring (13) is assembled between the screw (4) and the stainless steel sleeve (14); a stainless steel retaining ring (11) is fixed on the bottom surface of the valve plate (3), and a round magnetic sheet (12) is fixed in the stainless steel retaining ring (11).