WO2021093561A1 - 一种鼎式高温闸阀 - Google Patents

一种鼎式高温闸阀 Download PDF

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Publication number
WO2021093561A1
WO2021093561A1 PCT/CN2020/123759 CN2020123759W WO2021093561A1 WO 2021093561 A1 WO2021093561 A1 WO 2021093561A1 CN 2020123759 W CN2020123759 W CN 2020123759W WO 2021093561 A1 WO2021093561 A1 WO 2021093561A1
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Prior art keywords
plate
gate valve
valve body
valve
cooling water
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PCT/CN2020/123759
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English (en)
French (fr)
Inventor
张海伟
王鹏程
王珂
李丽锋
姜平
赵保国
刘立宇
荣澔洁
郭曾旭
单霄飞
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Shanxi Hepo Power Generation Co Ltd
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Shanxi Hepo Power Generation Co Ltd
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Publication of WO2021093561A1 publication Critical patent/WO2021093561A1/zh
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
    • F16K3/0227—Packings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/04—Construction of housing; Use of materials therefor of sliding valves
    • F16K27/044—Construction of housing; Use of materials therefor of sliding valves slide valves with flat obturating members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/30—Details
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/30—Details
    • F16K3/314—Forms or constructions of slides; Attachment of the slide to the spindle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/44—Mechanical actuating means
    • F16K31/60—Handles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
    • F16K37/0008—Mechanical means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K49/00—Means in or on valves for heating or cooling
    • F16K49/005—Circulation means for a separate heat transfer fluid
    • F16K49/007—Circulation means for a separate heat transfer fluid located within the obturating element

Definitions

  • the invention relates to the technical field of gate valves, in particular to a tripod type high temperature gate valve.
  • the gate valve is a control device that is installed on the process pipeline and used to control the flow of substances in the process pipeline. It is widely used in various industries such as chemical industry, energy, and pharmacy. There are also high-temperature materials in the pipeline conveying medium that need to be conveyed and stored. Due to the high temperature of the material, the gate valve used in the pipeline is difficult to withstand the high temperature of the material. Gate valves tend to be deformed and denatured (changes in physical characteristics) in high-temperature environments, resulting in abnormal conditions such as jamming, lax closing, and inability to close the gate valve, which reduces the service life of the gate valve.
  • the technical problem to be solved by the present invention is to provide a tripod-type high-temperature gate valve, so that the gate valve can achieve a cooling effect in a high-temperature working environment and improve the sealing effect and service life of the gate valve.
  • a tripod-type high-temperature gate valve comprising a valve body, an upper cover plate and a lower cover plate fixed on both sides of the valve body and used to connect external pipelines, and an ear plate fixed on the valve body and arranged on the ear plate
  • the upper support frame is fixed to the top plate at the top end of the support frame, inserted into the valve body and matched with the valve body for opening and closing the gate valve insert plate, and is arranged on the ear plate and used to seal the insert
  • the upper end and the lower end of the support frame are respectively provided with an upper limit rod and a lower limit rod for indicating that the gate valve is fully opened and fully closed.
  • a reinforcing rib plate for strengthening the connection strength of the ear plate.
  • the sealing packing box is further provided with an adjusting ring piece for adjusting the degree of compression and sealing between the sealing packing and the insert plate, and an adjusting bolt for adjusting the adjusting ring piece; the adjusting ring The film is notched.
  • cooling channel is arranged in the insert plate in an S shape.
  • a throttle boss is provided in the cooling water ring.
  • the upper cover plate and the lower cover plate have a tubular structure or a flanged structure.
  • the present invention has the following beneficial effects:
  • the cooling water ring and the cooling channel provided in the gate of the present invention are connected to the external water pipeline through the water inlet and the water outlet when the gate valve is working, and the cooling water with lower temperature is transported through the water pipeline. Enter the cooling channel of the cooling water ring and the insert plate from the water inlet, cool the valve body and the insert plate, and then flow out from the water outlet to form a continuous cooling water temperature, reduce the temperature of the valve body and the insert plate, and avoid the gate valve. Too high temperature causes the gate valve to deform or lose its sealing function, which improves the service life of the gate valve.
  • the upper limit rod and the lower limit rod provided in the present invention can effectively avoid excessive force damage to the valve body when the insert plate is fully closed when the insert plate is operated by the handwheel, and the support frame when it is fully opened The excessive force damage further enhances the service life of the gate valve.
  • the adjusting ring piece and adjusting bolt provided for the sealing packing, in the actual use process, the adjusting ring piece is squeezed by the adjusting bolt to change the size of the gap of the adjusting ring piece, thereby realizing the sealing packing
  • the adjustment of the degree of squeezing between the plug-in plate valve and the sealing performance of the plug-in plate improves the practicality of the gate valve.
  • the throttling boss provided in the present invention can effectively prevent most of the cooling water from directly flowing out of the water inlet to the water outlet, increasing the flow of cooling water through the insert plate, and further improving its cooling effect.
  • Figure 1 is a schematic diagram of the structure of the present invention.
  • Figure 2 is a schematic cross-sectional view of the present invention.
  • Figure 3 is a schematic diagram of the cooling water ring structure of the present invention.
  • Figure 4 is a schematic diagram of the valve body structure of the present invention.
  • 1-valve body 2-upper cover, 3-lower cover, 4-ear plate, 5-support frame, 6-top plate, 7-plug board, 8-seal packing box, 9-valve stem, 10- Handwheel, 11- cooling water ring, 12- water inlet, 13- water outlet, 14- cooling channel, 15- hose line, 16- sealing packing, 17- upper limit rod, 18- lower limit rod, 19- Stiffener plate, 20-throttle boss.
  • a tripod-type high temperature gate valve is provided with a circulating cooling water device, which cools the gate valve through cooling water, avoids the gate valve from being in a high temperature working environment for a long time, and greatly extends the service life of the gate valve; its specific structure includes a valve body 1, fixed The upper cover plate 2 and the lower cover plate 3 on both sides of the valve body 1 and used to connect external pipelines, the upper cover plate 2 and the lower cover plate 3 are tubular or flanged structures, when the upper cover plate When the lower cover and the lower cover have a tubular structure, the gate valve is connected to the external pipeline by welding connection. When the upper cover and the lower cover are flanged structures, the gate valve can be connected by bolts and gaskets. Connection with external pipelines.
  • the valve body 1 is provided with ear plates 4, the two sides of the ear plates 4 are provided with support frames 5, the top of the support frame 5 is provided with a top plate 6, and the middle of the support frame 5 is provided with an insert plate 7, which is inserted into the valve body 1
  • a sealing packing box 8 is set on the ear plate 4.
  • the sealing packing box 8 is filled with a sealing packing 16, and the inserting plate 7 and The sealing packing 16 fits tightly to realize the sealing of the plug-in board; in order to realize the degree of compression and sealing between the sealed packing 16 and the plug-in board 7, a non-full-ring adjusting ring is set in the sealing packing box 16 to adjust
  • the ring piece has a gap. When the adjusting ring piece is squeezed, the size of the gap will change with the action of the squeezing force.
  • the sealing packing box 16 is also provided with an adjusting bolt. The adjustment of the adjusting bolt realizes the adjustment of the ring piece to the sealing disc. Different squeezing degrees of the roots, thereby effectively adjusting the tightness of the sealing between the sealing packing and the inserting plate.
  • the plug plate 7 is fixedly connected with a valve stem 9.
  • the up and down movement of the valve stem 9 drives the plug plate 7 to move in the valve body 1 to realize the opening and closing of the gate valve.
  • the valve stem 9 passes through the top plate 6, and the top plate 6 is equipped with a valve stem 9
  • the matched hand wheel 10 drives the valve stem to move up and down through the rotation of the hand wheel 10.
  • the hand wheel 10 and the valve stem 9 are connected by threaded connection.
  • the hand wheel 10 is fixed on the top plate through the bearing connection, and the hand wheel 10 rotates. Can drive the valve stem to move up and down.
  • a cooling water ring 11 is provided on the outside of the valve body 1.
  • the cooling water ring 11 is provided with a water inlet 12 and a water outlet 13, and the cooling water ring 11 and the valve body 1 are sealed and connected by welding.
  • a cooling passage 14 is provided in the insert plate 7, and the water flow passage formed by the cooling water ring 11 and the valve body 1 is connected through the hose line 14 Communicate with the cooling channel 14, the cooling water enters the cooling channel of the cooling water ring and the insert plate from the water inlet, cools the valve body and the insert plate, and then flows out from the water outlet, forming a continuous cooling water cooling, reducing the valve body And the temperature of the plug-in plate, to prevent the gate valve from withstanding too high temperature, causing the gate valve to deform or lose its sealing function, and improve the service life of the gate valve.
  • the handwheel cannot determine the relative positional relationship between the insert plate and the valve body during the rotation of the handwheel, it is easy to cause excessive force between the insert plate and the valve body, causing damage to the valve body.
  • the upper end of the support frame 5 and The lower end is respectively provided with an upper limit rod 17 and a lower limit rod 18 for indicating that the gate valve is fully open and fully closed; by turning the handwheel 10, when the insert plate is raised to the position of the upper limit rod 17, it indicates that the insert plate is fully open
  • the continuous rotation of the hand wheel can be stopped.
  • the insert plate drops to the position of the lower limit rod 18, it indicates that the insert plate is in a fully closed state.
  • the continuous rotation of the hand wheel should be stopped to prevent the insert plate from causing damage to the valve body. The excessive force damage.
  • a stiffener plate 19 for strengthening the connection strength of the ear plate 4 is also provided between the ear plate 4 and the valve body 1;
  • the cooling channel 14 in the insert plate is set to an S shape.
  • a section is provided in the cooling water ring 11. The flow boss 20 blocks most of the water flow from directly leading to the water outlet from the shortest distance, increases the amount of water flowing through the insert plate which is the cooling channel, and improves its cooling effect.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Details Of Valves (AREA)
  • Sliding Valves (AREA)

Abstract

一种鼎式高温闸阀，包括阀体（1），固定于阀体（1）两侧并用于连接外界管线的上盖板（2）和下盖板（3），固定于阀体（1）上的耳板（4），设置于耳板（4）上的支撑架（5），固定于支撑架（5）顶端的顶板（6），插入阀体（1）内并与阀体（1）相配合用于启闭闸阀的插板（7），设置于耳板（4）上并用于密封插板（7）的密封盘根盒（8），穿过顶板（6）且与插板（7）相连的并用于控制插板（7）升降的阀杆（9），以及设置于阀杆（9）上并用于控制阀杆（9）升降的手轮（10）；其中，阀体（1）的外侧设置有冷却水环（11），冷却水环（11）设置有进水口（12）和出水口（13），插板（7）内有冷却通道（14），冷却水环（11）和冷却通道（14）通过软管线（15）相连通；密封盘根盒（8）内填有密封盘根（16）。该高温闸阀通过设置的冷却水环（11）和冷却通道（14），可以通过循环冷却水对闸阀进行降温，避免闸阀长期处于高温工作环境中，提升闸阀的使用寿命。

Description

一种鼎式高温闸阀 技术领域
本发明涉及闸阀技术领域，具体涉及一种鼎式高温闸阀。
背景技术
闸阀是用于安装在工艺管线上，用于控制工艺管线中物质流动的控制装置，广泛应用于化工、能源、制药等各种行业。在管线的输送介质中也存在高温物料需要输送、储存。由于物料温度高，用于输送管道的闸阀却很难耐受物料高温。闸阀在高温环境中往往会变形、变性(物理特性改变)，从而导致闸阀卡塞、关不严、关不动等异常情况，减少了闸阀的使用寿命。
发明内容
本发明要解决的技术问题是：提供一种鼎式高温闸阀，使闸阀在高温的工作环境中能实现冷却的效果，提高闸阀的密封效果和使用寿命。
为实现上述目的，本发明采用的技术方案如下：
一种鼎式高温闸阀，包括阀体，固定于所述阀体两侧并用于连接外界管线的上盖板和下盖板，固定于所述阀体上的耳板，设置于所述耳板上的支撑架，固定于所述支撑架顶端的顶板，插入所述阀体内并与所述阀体相配合用于启闭闸阀的插板，设置于所述耳板上并用于密封所述插板的密封盘根盒，穿过所述顶板且与所述插板相连的并用于控制所述插板升降的阀杆，以及设置于所述阀杆上并用于控制所述阀杆升降的手轮；其中，所述阀体的外侧设置有冷却水环，所述冷却水环设置有进水口和出水口，所述插板内设置有冷却通道，所述冷却水环和所述冷却通道通过软管线相连通；所述密封盘根盒内填有密封盘根。
进一步地，所述支撑架的上端和下端分别设有用于指示闸阀全开和全闭的 上限位杆和下限位杆。
进一步地，所述耳板与所述阀体之间还设有用于加强所述耳板连接强度的加强筋板。
进一步地，所述密封盘根盒还设有用于调节所述密封盘根与所述插板挤压密封程度的调节环片，以及用于调节所述调节环片的调节螺栓；所述调节环片开设有缺口。
进一步地，所述冷却通道呈S型设置于所述插板内。
进一步地，所述冷却水环内设有节流凸台。
进一步地，所述上盖板和下盖板为管状的结构或者法兰式的结构。
与现有技术相比，本发明具有以下有益效果：
(1)本发明设置的冷却水环以及闸板内设置的冷却通道，在闸阀工作的时候，通过进水口和出水口与外界水管线相连，通过水管线输送温度较低的冷却水，冷却水从进水口进入冷却水环和插板的冷却通道中，对阀体和插板进行降温冷却，再从出水口流出，形成持续的冷却水降温，降低阀体和插板的温度，避免闸阀承受过高的温度，造成闸阀的变形或者失去密封的功能，提高了闸阀的使用寿命。
(2)本发明设置的上限位杆和下限位杆可以有效的避免在通过手轮对插板进行操作时，插板全闭时对阀体造成过力损伤，以及全开时对支撑架造成的过力损伤，进一步提升闸阀的使用寿命。
(3)本发明中密封盘根设置的调节环片和调节螺栓，在实际使用的过程中，通过调节螺栓挤压调节环片，使调节环片的缺口大小发生变化，从而实现对密封盘根与插板阀之间的挤压程度的调节，调节插板的密封性能，提高了闸阀的实用性。
(4)本发明中所设置的节流凸台，可以有效的防止大部分的冷却水从进水口直接出到出水口流出，增加冷却水通过插板的水流量，进一步提升其冷却的效果。
附图说明
图1为本发明结构示意图。
图2为本发明的截面示意图。
图3为本发明冷却水环结构示意图。
图4为本发明阀体结构示意图。
其中，附图标记对应的名称为：
1-阀体，2-上盖板，3-下盖板，4-耳板，5-支撑架，6-顶板，7-插板，8-密封盘根盒，9-阀杆，10-手轮，11-冷却水环，12-进水口，13-出水口，14-冷却通道，15-软管线，16-密封盘根，17-上限位杆，18-下限位杆，19-加强筋板，20-节流凸台。
具体实施方式
下面结合附图说明和实施例对本发明作进一步说明，本发明的方式包括但不仅限于以下实施例。
如图1～3所示：
一种鼎式高温闸阀，设置有循环冷却水装置，通过冷却水对闸阀进行降温，避免闸阀长期处于高温的工作环境中，大大的延长了闸阀的使用寿命；其具体结构包括阀体1，固定于所述阀体1两侧并用于连接外界管线的上盖板2和下盖板3，所述上盖板2和下盖板3为管状的结构或者法兰式的结构，当上盖板和下盖板为管状的结构时，该闸阀通过焊接的连接方式与外界管线进行连接，当上盖板和下盖板为法兰式的结构时，可以通过螺栓和密封垫连接的方式实现闸阀 与外界管线之间的连接。
阀体1上设置耳板4，耳板4的两侧上设置支撑架5，支撑架5的顶端设置顶板6，支撑架5的中间设置插板7，插板7插入至阀体1中用于实现闸阀的启闭，为了实现阀体1与插板7之间的密封，在耳板4上设置密封盘根盒8，密封盘根盒8内填有密封盘根16，插板7与密封盘根16紧密贴合，实现插板的密封；为了实现密封盘根16与插板7之间的挤压密封程度，在密封盘根盒16内设置一个非全环的调节环片，调节环片有一缺口，挤压调节环片的时候，该缺口大小会随挤压作用力的作用而变化，密封盘根盒16还设置有一调节螺栓，通过调节螺栓的调节实现调节环片对密封盘根的不同挤压程度，从而有效调节密封盘根与插板之间的密封紧密性。
插板7固定连接有阀杆9，阀杆9上下移动带动插板7在阀体1内移动，实现闸阀的开闭，阀杆9穿过顶板6，顶板6上配设有与阀杆9相配合的手轮10，通过手轮10的转动驱动阀杆上下移动，手轮10与阀杆9通过螺纹连接的方式进行连接，手轮10通过轴承连接固定在顶板上，手轮10转动就能带动阀杆上下移动。
为了实现阀体的降温，阀体1的外侧设置有冷却水环11，所述冷却水环11设置有进水口12和出水口13，冷却水环11与阀体1通过焊接的方式密封连接成一体并形成一个可供水流通过的通道；为了实现对插板7的降温，在插板7内设置冷却通道14，并通过软管线14将冷却水环11与阀体1所形成的水流通道和冷却通道14进行连通，冷却水从进水口进入冷却水环和插板的冷却通道中，对阀体和插板进行降温冷却，再从出水口流出，形成持续的冷却水降温，降低阀体和插板的温度，避免闸阀承受过高的温度，造成闸阀的变形或者失去密封的功能，提高了闸阀的使用寿命。
由于手轮在转动的过程中，并不能判断插板与阀体之间的相对位置关系，容易造成插板与阀体之间受力过度，造成阀体的损坏，在支撑架5的上端和下端分别设有用于指示闸阀全开和全闭的上限位杆17和下限位杆18；通过手轮10的转动，使插板提升到上限位杆17的位置时，表明插板已处于全开的状态，而可以停止手轮的继续转动，当插板下降到下限位杆18的位置时，表明插板已处于全闭的状态，应当停止手轮的继续转动，避免插板对阀体造成的过力损伤。
为了提升耳座4的支撑强度，在耳板4与所述阀体1之间还设有用于加强耳板4连接强度的加强筋板19；为了提升插板内的水流通过面积，同时保证插板的强度，将插板内的冷却通道14设置成S型，通过为了防止从进水口进入的冷却水直接通过出水口流出，而达不到有效的降温效果，在冷却水环11内设置节流凸台20，阻隔大部分的水流直接从最短的距离通往出水口，增大水流通过插板是冷却通道的水量，提升其冷却的效果。
上述实施例仅为本发明的优选实施方式之一，不应当用于限制本发明的保护范围，但凡在本发明的主体设计思想和精神上作出的毫无实质意义的改动或润色，其所解决的技术问题仍然与本发明一致的，均应当包含在本发明的保护范围之内。

Claims (7)

  1. 一种鼎式高温闸阀，其特征在于：包括阀体(1)，固定于所述阀体(1)两侧并用于连接外界管线的上盖板(2)和下盖板(3)，固定于所述阀体(1)上的耳板(4)，设置于所述耳板(4)上的支撑架(5)，固定于所述支撑架(5)顶端的顶板(6)，插入所述阀体(1)内并与所述阀体(1)相配合用于启闭闸阀的插板(7)，设置于所述耳板(4)上并用于密封所述插板(7)的密封盘根盒(8)，穿过所述顶板(6)且与所述插板(7)相连的并用于控制所述插板(7)升降的阀杆(9)，以及设置于所述阀杆(9)上并用于控制所述阀杆(9)升降的手轮(10)；其中，所述阀体(1)的外侧设置有冷却水环(11)，所述冷却水环(11)设置有进水口(12)和出水口(13)，所述插板(7)内设置有冷却通道(14)，所述冷却水环(11)和所述冷却通道(14)通过软管线(15)相连通；所述密封盘根盒(8)内填有密封盘根(16)。
  2. 根据权利要求1所述的一种鼎式高温闸阀，其特征在于：所述支撑架(5)的上端和下端分别设有用于指示闸阀全开和全闭的上限位杆(17)和下限位杆(18)。
  3. 根据权利要求2所述的一种鼎式高温闸阀，其特征在于：所述耳板(4)与所述阀体(1)之间还设有用于加强所述耳板(4)连接强度的加强筋板(19)。
  4. 根据权利要求1所述的一种鼎式高温闸阀，其特征在于：所述密封盘根盒(8)还设有用于调节所述密封盘根与所述插板(7)挤压密封程度的调节环片，以及用于调节所述调节环片的调节螺栓；所述调节环片开设有缺口。
  5. 根据权利要求3或4所述的一种鼎式高温闸阀，其特征在于：所述冷却通道(14)呈S型设置于所述插板(7)内。
  6. 根据权利要求5所述的一种鼎式高温闸阀，其特征在于：所述冷却水环(11)内设有节流凸台(20)。
  7. 根据权利要求5所述的一种鼎式高温闸阀，其特征在于：所述上盖板和下盖板为管状的结构或者法兰式的结构。
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