CN102588614A

CN102588614A - Semi-closed valve for ammonia

Info

Publication number: CN102588614A
Application number: CN2012100486754A
Authority: CN
Inventors: 袁君
Original assignee: DALIAN EAST REFRIGERATION EQUIPMENT CO LTD
Current assignee: DALIAN EAST REFRIGERATION EQUIPMENT CO LTD
Priority date: 2012-02-29
Filing date: 2012-02-29
Publication date: 2012-07-18

Abstract

The invention discloses a semi-closed valve for ammonia, which comprises a handle, a first bearing, an outer cover, an outer rotor, an insulation sleeve, an inner rotor, a second bearing, a valve stem, a valve seat, a valve clack, a valve body and a shaft. The handle is connected with the shaft, the shaft and the outer rotor are in the integrated structure, the first bearing is mounted on the outer cover, the outer cover and the insulation sleeve are respectively mounted on the valve body, the inner rotor and the valve seat are connected on the valve rod, the second bearing is mounted between the inner rotor and the valve stem, and the valve clack is fixed at the bottom end of the valve stem. In the semi-closed valve for ammonia, an opening and closing system is enclosed in the valve body, the valve can be opened and closed by rotating the handle, and no leakage is achieved. Since the handle and the valve stem are free of mechanical connection, the handle can be taken off after operation is completed, misoperation can be avoided and the anti-theft function can be realized. In addition, the valve made of corrosion-resistant materials is capable of realizing full closing, packing is omitted, abrasion of the valve stem is reduced, the valve can be opened and closed flexibly and is anti-rust, and the service life thereof is prolonged.

Description

A kind of ammonia is used semiclosed valve

Technical field

The present invention relates to a kind of ammonia and use semiclosed valve.

Background technique

In the existing technology, the keying of General valve is generally adopted handle rotating band ovable valve stem to rotate and is accomplished, and solves sealing with stuffing between the valve rod of rotation and lifting and the motionless valve gap; Can reduce leakage under the short time constant pressure, use a period of time, it is unusual to explain that perhaps pressure takes place; Will occur leaking, that often says in the industry at once leaks outside, this normal industrial accident that causes that leaks outside; Cause enormous economic loss, thereby " run, drip, leak " become a big industrial problem.

Summary of the invention

The purpose of this invention is to provide a kind of zero ammonia of leaking outside of realizing and use semiclosed valve.

The present invention for realizing the technological scheme that above-mentioned purpose adopted is: a kind of ammonia is used semiclosed valve; Comprise handle (1), clutch shaft bearing (2), outer cover (3), external rotor (4), separation sleeve (5), internal rotor (6), second bearing (7), valve rod (8), valve seat (9), flap (10), valve body (11) and axle (12); Handle (1) is connected with axle (12); Axle (12) is structure as a whole with external rotor (4); Clutch shaft bearing (2) is installed on the outer cover (3), and outer cover (3) and separation sleeve (5) are separately fixed on the valve body (11), and internal rotor (6) and valve seat (9) are connected on the valve rod (8); Second bearing (7) is installed between internal rotor (6) and the valve rod (8), and flap (10) is fixed on the bottom of valve rod (8).

Said separation sleeve (5), internal rotor (6) and valve rod (8) constitute independently seal space.

Said internal rotor (6) is threaded with valve rod (8).

A kind of ammonia of the present invention is used semiclosed valve, use " permanent magnetism do not have the leakage drive technology ", be enclosed in valve inner to opening/closing system, rotate dedicated handle, accomplish the keying operation of valve, thoroughly stopped to leak outside; Is not connected because handle and valve rod have machinery, can handle be taken off behind the end of operation and take away, can avoid the misoperation antitheft effect of having held concurrently, be convenient to control, manage; Because valve is realized whole closed institution, adopt resistant material, cancelled packing filling, reduce stem wear, make valve opening and closing flexible, and it is dead can not become rusty, prolong the life-span of valve; Owing to stopped to leak outside, taken on a new look and used on-the-spot working environment, solved an on-the-spot pollution difficult problem, be a kind of real green valve.

Description of drawings

Fig. 1 is the structural representation of a kind of ammonia of the present invention with semiclosed valve.

Among the figure: 1, handle; 2, clutch shaft bearing; 3, outer cover; 4, external rotor; 5, separation sleeve; 6, internal rotor; 7, second bearing; 8, valve rod; 9, valve seat; 10, flap; 11, valve body; 12, axle.

Embodiment

As shown in Figure 1, ammonia is used semiclosed valve, comprises handle 1, clutch shaft bearing 2, outer cover 3, external rotor 4, separation sleeve 5, internal rotor 6, second bearing 7, valve rod 8, valve seat 9, flap 10, valve body 11 and axle 12; Handle 1 is connected with axle 12, and axle 12 is structure as a whole with external rotor 4, and clutch shaft bearing 2 is installed on the outer cover 3; Outer cover 3 is separately fixed on the valve body 11 with separation sleeve 5, and internal rotor 6 is connected on the valve rod 8 with valve seat 9, and internal rotor 6 is threaded with valve rod 8; Internal rotor 6 is similar to nut, and second bearing 7 is installed between internal rotor 6 and the valve rod 8, and flap 10 is fixed on the bottom of valve rod 8; Separation sleeve 5, internal rotor 6 and valve rod 8 constitute independently seal space, and this valve adopts push-and-pull magnetic circuit optimizing design scheme according to " permanent magnetism rotates does not have the theory of leakage "; The machinery that opens and closes operation to conventional valves firmly becomes use magnetic torsion, and through handle with sleeve, the inner yoke (connecting as one with valve rod) that drives shielding is rotated; Accomplish the keying of valve,, cancelled original moving sealing (filler) because this opening/closing mechanism is enclosed in valve internal; So fundamentally stopped the generation that leaks outside of valve, because having machinery with valve rod, operating grip is not connected, so can taking off behind end of operation, handle takes away; The unique technique structure has possessed valve zero to leak outside, auto-lock function.

Claims

1. an ammonia is used semiclosed valve; It is characterized in that: comprise handle (1), clutch shaft bearing (2), outer cover (3), external rotor (4), separation sleeve (5), internal rotor (6), second bearing (7), valve rod (8), valve seat (9), flap (10), valve body (11) and axle (12); Handle (1) is connected with axle (12); Axle (12) is structure as a whole with external rotor (4); Clutch shaft bearing (2) is installed on the outer cover (3), and outer cover (3) and separation sleeve (5) are separately fixed on the valve body (11), and internal rotor (6) and valve seat (9) are connected on the valve rod (8); Second bearing (7) is installed between internal rotor (6) and the valve rod (8), and flap (10) is fixed on the bottom of valve rod (8).

2. a kind of ammonia according to claim 1 is used semiclosed valve, it is characterized in that: said separation sleeve (5), internal rotor (6) and valve rod (8) constitute independently seal space.

3. a kind of ammonia according to claim 1 is used semiclosed valve, it is characterized in that: said internal rotor (6) is threaded with valve rod (8).