CN204610847U - The bidirectional balanced ring assembly of telescoping valve - Google Patents

The bidirectional balanced ring assembly of telescoping valve Download PDF

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Publication number
CN204610847U
CN204610847U CN201520096607.4U CN201520096607U CN204610847U CN 204610847 U CN204610847 U CN 204610847U CN 201520096607 U CN201520096607 U CN 201520096607U CN 204610847 U CN204610847 U CN 204610847U
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China
Prior art keywords
ring
seal ring
balanced seal
balanced
opening slot
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CN201520096607.4U
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Chinese (zh)
Inventor
陈彦
盛子烨
陆坤铭
袁水
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Wuxi Smart Auto Control Engineering Co Ltd
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Wuxi Smart Auto Control Engineering Co Ltd
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Abstract

The utility model relates to the bidirectional balanced ring assembly of a kind of telescoping valve, comprises valve body and valve seat, valve seat top installing sleeve, and upper cartridge installs balance ring seat; It is characterized in that: at described sleeve and the cooperation place of balance ring seat, groove is set, first anti-extrusion ring, the first balanced seal ring, support ring, the second balanced seal ring and the second anti-extrusion ring are installed in groove from bottom to up, the side of the first anti-extrusion ring and the second anti-extrusion ring is stop contact round end, and the root of stop contact round end forms shoulder; The side of described first balanced seal ring and the second balanced seal ring arranges opening slot, the stop contact round end of the first anti-extrusion ring is arranged in the opening slot of the first balanced seal ring, and the stop contact round end of the second anti-extrusion ring is arranged in the opening slot of the second balanced seal ring.The utility model meets the requirement of valve two way sealed, and spool stable action is reliable, significantly reduces disc vibration and noise.

Description

The bidirectional balanced ring assembly of telescoping valve
Technical field
The utility model relates to the bidirectional balanced ring assembly of a kind of telescoping valve, and especially a kind of flow direction with operating mode medium in valve changes and can bear the telescoping valve black box of forward and reverse pressure, belongs to modulating valve technical field.
Background technique
At industrial sites such as chemical industry, oil, electric power, metallurgy, sleeve adjusting valve is widely used.It has the features such as having stable behavior is reliable, pondage is large, required actuator thrust is little.The trim structure of conventional sleeve modulating valve has two kinds of forms, and a kind of is two hard sealing surface structures of valve seat, spool, valve rod, sleeve composition, and another kind is the soft or hard combination seal face structure of valve seat, spool, valve rod, balanced seal ring and balance ring seat composition.
Along with the continuous innovation of industrial processes technology, production technology is also progressively improving the requirement of chemical plant installations, and this just requires that the various valves on chemical plant installations must meet the continuous change of site technique.As in site technique pipeline, MEDIA FLOW through the direction of sleeve adjusting valve relative to valve for stream is opened.And when production technology changes, the direction that process pipe medium flows through sleeve adjusting valve there will be on the contrary, namely occur for valve being stream pass.When above situation occurs, for two kinds of structures recited above, the former can meet working condition requirement, but because be two hard sealing surface structures, require that the machining accuracy of trim is high, cost manufactures high, and under common situation, leakage class is difficult to reach IV grade or V grade, directly can affect the quality of product in process units; And for the latter, the change flowed to, make balanced seal ring can not bear reverse media pressure, balanced seal ring is caused to lose efficacy, thus after medium directly leaks into valve by the gap between sleeve and spool, after the leading role of simultaneously spool disequilibrium seal ring, there will be vibration when spool moves up and down in barrel bore and aggravate even bite phenomenon, directly barrel bore is scratched time serious, noise enlargement phenomenon also can with occurring, the final adjusting function affecting valve, can not meet the usage requirement after technique change.
Summary of the invention
The purpose of this utility model overcomes the deficiencies in the prior art, there is provided a kind of telescoping valve bidirectional balanced ring assembly, balanced seal ring can bear the forward and reverse pressure of medium, meet the requirement of process pipe to valve two way sealed, spool stable action in movement process is reliable, remarkable minimizing disc vibration and noise, improve valve regulated precision, ensures quality of product.
According to the technological scheme that the utility model provides, the bidirectional balanced ring assembly of a kind of telescoping valve, comprise valve body, upper cover is installed on valve body top, at the central diaphragm place of valve body, valve seat is installed, at valve seat top installing sleeve, in sleeve, spool is installed, upper cartridge installs balance ring seat, and upper cover is installed on the top of balance ring seat and the top of valve body; It is characterized in that: groove is set at described sleeve and the cooperation place of balance ring seat, the first anti-extrusion ring, the first balanced seal ring, support ring, the second balanced seal ring and the second anti-extrusion ring are installed in the groove from bottom to up successively; The side of described first anti-extrusion ring and the second anti-extrusion ring is stop contact round end, and the root of stop contact round end forms shoulder; The side of described first balanced seal ring and the second balanced seal ring arranges opening slot, and down, the opening slot of the second balanced seal ring upward for the opening slot of the first balanced seal ring; The stop contact round end of described first anti-extrusion ring is arranged in the opening slot of the first balanced seal ring, and the stop contact round end of the second anti-extrusion ring is arranged in the opening slot of the second balanced seal ring.
Further, the edge of the opening slot of described first balanced seal ring and the second balanced seal ring is PTFE antelabium, and in the opening slot of the first balanced seal ring and the second balanced seal ring, arrange stainless steel spring, stainless steel spring is arranged along the inwall of opening slot; Described PTFE antelabium is positioned at the both sides of opening slot, and PTFE antelabium protrudes from the sidewall of opening slot.
Further, the material of described first anti-extrusion ring, the second anti-extrusion ring and support ring is PEEK.
Further, endoporus and the spool cylindrical of described support ring are fitted, the lower planes of support ring respectively with the first balanced seal ring and the second balanced seal loop contacts.
The utility model has following beneficial effect: balanced seal ring and anti-extrusion ring symmetry are installed in the groove of sleeve and balance ring seat, balanced seal ring can bear the forward and reverse pressure of medium, meet the requirement of process pipe to valve two way sealed, do not need because operating mode changes and frequently change trim, cost-saving, spool stable action in movement process is reliable, significantly reduces disc vibration and noise, improve valve regulated precision, ensure quality of product.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the A enlarged view of Fig. 1.
Embodiment
Below in conjunction with concrete accompanying drawing, the utility model is described in further detail.
As shown in Fig. 1 ~ Fig. 2: as described in the bidirectional balanced ring assembly of telescoping valve comprise valve body 1, valve seat 2, sleeve 3, spool 4, balance ring seat 5, upper cover 6, first anti-extrusion ring 7-1, the second anti-extrusion ring 7-2, the first balanced seal ring 8-1, the second balanced seal ring 8-2, support ring 9, stainless steel spring 10 etc.
As shown in Figure 1, the utility model comprises valve body 1, and upper cover 6 is installed on valve body 1 top, installs valve seat 2, arrange graphite Composition spacer and compress between valve body 1 and valve seat 2 at the central diaphragm place of valve body 1; At described valve seat 2 top installing sleeve 3, install spool 4 in sleeve 3, balance ring seat 5 is installed on sleeve 3 top, and graphite Composition spacer is installed on the balance top of ring seat 5 and the top of valve body 1 respectively, and compresses graphite Composition spacer by upper cover 1; As shown in Figure 2, groove is set at described sleeve 3 and the cooperation place of balance ring seat 5, the first anti-extrusion ring 7-1, the first balanced seal ring 8-1, support ring 9, second balanced seal ring 8-2 and the second anti-extrusion ring 7-2 are installed in the groove from bottom to up successively; The side of described first anti-extrusion ring 7-1 and the second anti-extrusion ring 7-2 is stop contact round end, and the root of stop contact round end forms shoulder; The side of described first balanced seal ring 8-1 and the second balanced seal ring 8-2 arranges opening slot, and down, the opening slot of the second balanced seal ring 8-2 upward for the opening slot of the first balanced seal ring 8-1; The stop contact round end of described first anti-extrusion ring 7-1 is arranged in the opening slot of the first balanced seal ring 8-1, and the stop contact round end of the second anti-extrusion ring 7-2 is arranged in the opening slot of the second balanced seal ring 8-2;
The edge of the opening slot of described first balanced seal ring 8-1 and the second balanced seal ring 8-2 is PTFE antelabium, in the opening slot of the first balanced seal ring 8-1 and the second balanced seal ring 8-2, arrange stainless steel spring 10, stainless steel spring 10 is arranged along the inwall of opening slot; Described PTFE antelabium is positioned at the both sides of opening slot, and PTFE antelabium protrudes from the sidewall of opening slot; PTFE antelabium fits tightly and form seal action on spool 4 cylindrical with balance ring seat 5 endoporus by described stainless steel spring 10, and can compensate the wearing and tearing of PTFE antelabium;
The material of described first anti-extrusion ring 7-1, the second anti-extrusion ring 7-2 and support ring 9 is PEEK; Described support ring 9 has self lubricity and excellent mechanical property, endoporus and spool 4 cylindrical of support ring 9 are fitted, the lower planes of support ring 9 contacts with the second balanced seal ring 8-2 with the first balanced seal ring 8-1 respectively, working stability after guarantee balanced seal ring is in place, without mutual squeezing effect.
Working principle of the present utility model is as follows: spool 4 moves up and down in sleeve 3, adjust flux, first balanced seal ring 8-1, the second balanced seal ring 8-2 and spool 4 cylindrical composition soft sealing structure, in the first balanced seal ring 8-1 and the second balanced seal ring 8-2, stainless steel spring 10 can compensate the wearing and tearing of PTFE antelabium.Under valve stream open state, the PTFE antelabium of the second balanced seal ring 8-2 on support ring 9 top is by fitting tightly at spool 4 cylindrical and balancing on ring seat 5 endoporus under medium and stainless steel spring 10 active force, first balanced seal ring 8-1 of support ring 9 bottom moves to the first anti-extrusion ring 7-1 stop contact round end place under medium active force, protects the performance of the first balanced seal ring 8-1 intact; Under valve stream off status; the PTFE antelabium of the first balanced seal ring 8-1 is by fitting tightly at spool 4 cylindrical and balancing on ring seat 5 endoporus under medium and stainless steel spring active force; second balanced seal ring 8-2 moves to the second anti-extrusion ring 7-2 stop contact round end place under medium active force, protects the performance of the second balanced seal ring 8-2 intact.Telescoping valve bidirectional balanced ring assembly sealing structure performance is remarkable, and coordinate the hard sealing structure of spool 4 and valve seat 2, leakage class reaches more than V grade, meets field working conditions change request.

Claims (4)

1. the bidirectional balanced ring assembly of telescoping valve, comprise valve body (1), upper cover (6) is installed on valve body (1) top, at the central diaphragm place of valve body (1), valve seat (2) is installed, on valve seat (2) top installing sleeve (3), install spool (4) in sleeve (3), balance ring seat (5) is installed on sleeve (3) top, and upper cover (1) is installed on the top of balance ring seat (5) and the top of valve body (1); It is characterized in that: groove is set at described sleeve (3) and the cooperation place of balance ring seat (5), the first anti-extrusion ring (7-1), the first balanced seal ring (8-1), support ring (9), the second balanced seal ring (8-2) and the second anti-extrusion ring (7-2) are installed in the groove from bottom to up successively; The side of described first anti-extrusion ring (7-1) and the second anti-extrusion ring (7-2) is stop contact round end, and the root of stop contact round end forms shoulder; The side of described first balanced seal ring (8-1) and the second balanced seal ring (8-2) arranges opening slot, and down, the opening slot of the second balanced seal ring (8-2) upward for the opening slot of the first balanced seal ring (8-1); The stop contact round end of described first anti-extrusion ring (7-1) is arranged in the opening slot of the first balanced seal ring (8-1), and the stop contact round end of the second anti-extrusion ring (7-2) is arranged in the opening slot of the second balanced seal ring (8-2).
2. the bidirectional balanced ring assembly of telescoping valve as claimed in claim 1, it is characterized in that: the edge of the opening slot of described first balanced seal ring (8-1) and the second balanced seal ring (8-2) is PTFE antelabium, in the opening slot of the first balanced seal ring (8-1) and the second balanced seal ring (8-2), arrange stainless steel spring (10), stainless steel spring (10) is arranged along the inwall of opening slot; Described PTFE antelabium is positioned at the both sides of opening slot, and PTFE antelabium protrudes from the sidewall of opening slot.
3. the bidirectional balanced ring assembly of telescoping valve as claimed in claim 1, is characterized in that: the material of described first anti-extrusion ring (7-1), the second anti-extrusion ring (7-2) and support ring (9) is PEEK.
4. the bidirectional balanced ring assembly of telescoping valve as claimed in claim 1, it is characterized in that: endoporus and spool (4) cylindrical of described support ring (9) are fitted, the lower planes of support ring (9) contacts with the second balanced seal ring (8-2) with the first balanced seal ring (8-1) respectively.
CN201520096607.4U 2015-02-10 2015-02-10 The bidirectional balanced ring assembly of telescoping valve Active CN204610847U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520096607.4U CN204610847U (en) 2015-02-10 2015-02-10 The bidirectional balanced ring assembly of telescoping valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520096607.4U CN204610847U (en) 2015-02-10 2015-02-10 The bidirectional balanced ring assembly of telescoping valve

Publications (1)

Publication Number Publication Date
CN204610847U true CN204610847U (en) 2015-09-02

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104676012A (en) * 2015-02-10 2015-06-03 无锡智能自控工程股份有限公司 Bilateral balanced sealing ring component for sleeve valve

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104676012A (en) * 2015-02-10 2015-06-03 无锡智能自控工程股份有限公司 Bilateral balanced sealing ring component for sleeve valve

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