CN205298815U - Ammonia is with preventing leaking check valve core - Google Patents
Ammonia is with preventing leaking check valve core Download PDFInfo
- Publication number
- CN205298815U CN205298815U CN201620059715.9U CN201620059715U CN205298815U CN 205298815 U CN205298815 U CN 205298815U CN 201620059715 U CN201620059715 U CN 201620059715U CN 205298815 U CN205298815 U CN 205298815U
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- cap assembly
- pressure cap
- ring
- nonmetal
- briquetting
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Abstract
The utility model relates to an ammonia is with preventing leaking check valve core, it includes case body, gland assembly, valve rod, gland assembly sealing washer, valve stem gasket, double containment circle nonmetal briquetting, metallic gasket and fixing bolt, the utility model discloses need not to dismantle the stop valve, can prevent fast that the ammonia from revealing, guaranteed the progress of production, saved the cost of maintaining.
Description
Technical field
The utility model relates to a kind of spool, particularly relates to a kind of ammonia leakage-proof stop valve spool.
Background technology
In beer production, condenser can be used, and condenser needs to use liquefied ammonia, the pipeline of conveying liquefied ammonia can use stopping valve in a large number, the opening and closing element of stopping valve is spool, direction of motion and the flow direction of spool are perpendicular, and the spool of stopping valve is vertically move back and forth in action process in other words, to close or to open the flowing of liquefied ammonia in valve body.
Existing stopping valve is made up of valve body and the spool being connected in valve body; Described spool comprises spool body, pressure cap assembly and valve rod, and valve rod one end is placed in spool body by pressure cap assembly, and valve rod the other end dew is located at outside pressure cap assembly, and pressure cap assembly is screwed together in spool body upper end.
In actual use, valve rod is often occurred to reveal the phenomenon of ammonia with pressure cap assembly connection section, simultaneously, pressure cap assembly and spool body screw togather position and also there will be ammonia leakage phenomenon, once there is the leakage ammonia phenomenon at above-mentioned two positions, it is necessary to stop the supply of ammonia, by the dismounting maintenance of the stopping valve of this leakage, sealing-ring in spool body is changed or changed the planar sealing pad of pressure cap assembly, and such maintenance operation can affect production schedule, and maintenance cost is high.
Practical novel content
Technical problem to be solved in the utility model is to provide a kind of ammonia leakage-proof stop valve spool, and it is without the need to dismantling stopping valve, can prevent ammonia from revealing fast, ensure that the progress of production, save the cost of maintenance.
For solving the problems of the technologies described above, the utility model adopts following technical proposals: a kind of ammonia leakage-proof stop valve spool, and it comprises spool body, pressure cap assembly, valve rod, pressure cap assembly sealing-ring, valve stem packing ring, the nonmetal briquetting of Double seal ring, metallic gasket and standing bolt;
Valve rod one end is placed in spool body by pressure cap assembly, and valve rod the other end dew is located at outside pressure cap assembly, and pressure cap assembly is screwed together in spool body upper end;
Described pressure cap assembly sealing-ring is sheathed on pressure cap assembly, and presses cap assembly sealing-ring lower surface and spool body upper surface to touch;
Described valve stem packing ring is sheathed on valve rod, and valve stem packing ring lower surface touches the upper surface of cap assembly with pressing;
The nonmetal briquetting of described Double seal ring is socketed on outside pressure cap assembly sealing-ring, pressure cap assembly, valve stem packing ring and valve rod from the bottom to top successively, and the lower surface of the nonmetal briquetting of Double seal ring and spool body upper surface touch, pressure cap assembly sealing-ring is closely limited in the big annular space that spool body upper surface, pressure cap assembly and the nonmetal briquetting of Double seal ring are formed by the nonmetal briquetting of Double seal ring, and valve stem packing ring is closely limited in the little annular space that pressure cap assembly, valve rod and the nonmetal briquetting of Double seal ring are formed by the nonmetal briquetting of Double seal ring;Valve rod upper end dew is located at outside the nonmetal briquetting upper surface of Double seal ring, metallic gasket is socketed on valve rod upper end and touches with the nonmetal briquetting upper surface of Double seal ring, standing bolt is screwed together in the tapped bind hole of valve rod upper surface, metallic gasket sandwiched is fixed between standing bolt and the nonmetal briquetting of Double seal ring.
The nonmetal briquetting of described Double seal ring is the tubular body arranged inside of hollow, the diameter on the tubular body arranged inside top of hollow mates with valve rod lower end diameter, the tubular body arranged inside bottom of hollow is provided with the first stepped circular groove, the 2nd circular groove and the 3rd circular groove, the diameter of three circular grooves becomes big from top to bottom gradually, the diameter of the first circular groove with highly respectively with the diameter of valve stem packing ring and mating highly mutually, so that the junction that valve stem packing ring is closely pressed on cap assembly and valve rod, prevent ammonia from revealing from here; The diameter of the 2nd circular groove mates mutually with the diameter of pressure cap assembly bottom, the vertical height of the pressure cap assembly of the matched of the 2nd circular groove between pressure cap assembly sealing-ring to valve stem packing ring; The diameter of the 3rd circular groove with highly respectively with the pressure diameter of cap assembly sealing-ring and mating highly mutually, by pressing cap assembly sealing-ring to be closely pressed on cap assembly and the junction of spool body upper end, to prevent ammonia from revealing from here.
The material of the nonmetal briquetting of described Double seal ring is nylon.
The utility model, without the need to dismantling stopping valve, can prevent ammonia from revealing fast, ensure that the progress of production, save the cost of maintenance.
Accompanying drawing explanation
Fig. 1 is the utility model one-piece construction schematic diagram.
Fig. 2 is that the utility model decomposes structural representation.
Embodiment
Shown in Fig. 1-Fig. 2, a kind of ammonia leakage-proof stop valve spool, it comprises spool body 1, pressure cap assembly 2, valve rod 3, pressure cap assembly sealing-ring 4, valve stem packing ring 5, the nonmetal briquetting 6 of Double seal ring, metallic gasket 7 and standing bolt 8;
Valve rod 3 one end is placed in spool body 1 by pressure cap assembly 2, and valve rod 3 the other end dew is located at outside pressure cap assembly 2, and pressure cap assembly 2 is screwed together in spool body 1 upper end;
Described pressure cap assembly sealing-ring 4 is sheathed on pressure cap assembly 2, and presses cap assembly sealing-ring 4 lower surface and spool body 1 upper surface to touch;
Described valve stem packing ring 5 is sheathed on valve rod 3, and valve stem packing ring 5 lower surface touches the upper surface of cap assembly 2 with pressing;
The nonmetal briquetting 6 of described Double seal ring is socketed on pressure cap assembly sealing-ring 4 from the bottom to top successively, pressure cap assembly 2, outside valve stem packing ring 5 and valve rod 3, and the lower surface of the nonmetal briquetting 6 of Double seal ring and spool body 1 upper surface touch, pressure cap assembly sealing-ring 4 is closely limited in spool body 1 upper surface by the nonmetal briquetting 6 of Double seal ring, in the big annular space that pressure cap assembly 2 and Double seal ring nonmetal briquetting 6 are formed, valve stem packing ring 5 is closely limited in pressure cap assembly 2 by the nonmetal briquetting 6 of Double seal ring, in the little annular space that valve rod 3 and Double seal ring nonmetal briquetting 6 are formed, valve rod 3 upper end dew is located at outside Double seal ring nonmetal briquetting 6 upper surface, metallic gasket 7 is socketed on valve rod 3 upper end and touches with Double seal ring nonmetal briquetting 6 upper surface, standing bolt spiral shell 8 closes in the tapped bind hole of valve rod 3 upper surface, metallic gasket 7 sandwiched is fixed between standing bolt 8 and the nonmetal briquetting 6 of Double seal ring.
The nonmetal briquetting 6 of described Double seal ring is the tubular body arranged inside of hollow, the diameter on the tubular body arranged inside top 61 of hollow mates with valve rod 3 lower end diameter, the tubular body arranged inside bottom of hollow is provided with the first stepped circular groove 62, the 2nd circular groove 63 and the 3rd circular groove 64, the diameter of three circular grooves becomes big from top to bottom gradually, the diameter of the first circular groove 62 with highly respectively with the diameter of valve stem packing ring 5 and mating highly mutually;The diameter of the 2nd circular groove 63 mates mutually with the diameter of pressure cap assembly 2 bottom, the vertical height of the pressure cap assembly 2 of the matched of the 2nd circular groove 63 between pressure cap assembly sealing-ring 4 to valve stem packing ring 5; The diameter of the 3rd circular groove 64 with highly respectively with the pressure diameter of cap assembly sealing-ring 4 and mating highly mutually.
The material of the nonmetal briquetting 6 of described Double seal ring is nylon.
As mentioned above; a kind of ammonia leakage-proof stop valve spool of the utility model; described embodiment and figure; the just good implementation result of the utility model; it is not be confined to the utility model; every and structure of the present utility model, feature etc. are similar to, identical person, all should belong to the scope of the utility model protection.
Claims (3)
1. an ammonia leakage-proof stop valve spool, it is characterised in that: it comprises spool body (1), pressure cap assembly (2), valve rod (3), pressure cap assembly sealing-ring (4), valve stem packing ring (5), the nonmetal briquetting of Double seal ring (6), metallic gasket (7) and standing bolt (8);
Valve rod (3) one end is placed in spool body (1) by pressure cap assembly (2), valve rod (3) the other end dew is located at pressure cap assembly (2) outward, and pressure cap assembly (2) is screwed together in spool body (1) upper end;
Described pressure cap assembly sealing-ring (4) is sheathed in pressure cap assembly (2), and presses cap assembly sealing-ring (4) lower surface and spool body (1) upper surface to touch;
Described valve stem packing ring (5) is sheathed on valve rod (3), and valve stem packing ring (5) lower surface touches the upper surface of cap assembly (2) with pressing;
The nonmetal briquetting of described Double seal ring (6) is socketed on pressure cap assembly sealing-ring (4) from the bottom to top successively, pressure cap assembly (2), valve stem packing ring (5) and valve rod (3) are outward, and the lower surface of the nonmetal briquetting of Double seal ring (6) and spool body (1) upper surface touch, the nonmetal briquetting of Double seal ring (6) will press cap assembly sealing-ring (4) to be closely limited in spool body (1) upper surface, in the big annular space that pressure cap assembly (2) and the nonmetal briquetting of Double seal ring (6) are formed, valve stem packing ring (5) is closely limited in pressure cap assembly (2) by the nonmetal briquetting of Double seal ring (6), in the little annular space that valve rod (3) and the nonmetal briquetting of Double seal ring (6) are formed, valve rod (3) upper end dew is located at outside Double seal ring nonmetal briquetting (6) upper surface, metallic gasket (7) is socketed on valve rod (3) upper end and touches with Double seal ring nonmetal briquetting (6) upper surface, standing bolt (8) closes in the tapped bind hole of valve rod (3) upper surface, metallic gasket (7) sandwiched is fixed between standing bolt (8) and the nonmetal briquetting of Double seal ring (6).
2. a kind of ammonia leakage-proof stop valve spool according to claim 1, it is characterized in that: the tubular body arranged inside that the nonmetal briquetting of described Double seal ring (6) is hollow, the diameter on the tubular body arranged inside top (61) of hollow mates with valve rod (3) lower end diameter, the tubular body arranged inside bottom of hollow is provided with stepped the first circular groove (62), 2nd circular groove (63) and the 3rd circular groove (64), the diameter of three circular grooves becomes big from top to bottom gradually, the diameter of the first circular groove (62) with highly respectively with the diameter of valve stem packing ring (5) and mating highly mutually, the diameter of the 2nd circular groove (63) mates mutually with the diameter of pressure cap assembly (2) bottom, the vertical height of the pressure cap assembly (2) of the matched of the 2nd circular groove (63) between pressure cap assembly sealing-ring (4) to valve stem packing ring (5), the diameter of the 3rd circular groove (64) with highly respectively with pressure cap assembly sealing-ring (4) diameter and mate highly mutually.
3. a kind of ammonia leakage-proof stop valve spool according to claim 1, it is characterised in that: the material of the nonmetal briquetting of described Double seal ring (6) is nylon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620059715.9U CN205298815U (en) | 2016-01-22 | 2016-01-22 | Ammonia is with preventing leaking check valve core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620059715.9U CN205298815U (en) | 2016-01-22 | 2016-01-22 | Ammonia is with preventing leaking check valve core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205298815U true CN205298815U (en) | 2016-06-08 |
Family
ID=56430215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620059715.9U Active CN205298815U (en) | 2016-01-22 | 2016-01-22 | Ammonia is with preventing leaking check valve core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205298815U (en) |
-
2016
- 2016-01-22 CN CN201620059715.9U patent/CN205298815U/en active Active
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |