CN111878595A - Manual high-temperature adjusting needle valve - Google Patents

Manual high-temperature adjusting needle valve Download PDF

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Publication number
CN111878595A
CN111878595A CN202010870270.3A CN202010870270A CN111878595A CN 111878595 A CN111878595 A CN 111878595A CN 202010870270 A CN202010870270 A CN 202010870270A CN 111878595 A CN111878595 A CN 111878595A
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CN
China
Prior art keywords
valve
shaft
high temperature
valve shaft
shell
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202010870270.3A
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Chinese (zh)
Inventor
刘峰
李小杰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xi'an Huijin Technology Co ltd
Original Assignee
Xi'an Huijin Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Xi'an Huijin Technology Co ltd filed Critical Xi'an Huijin Technology Co ltd
Priority to CN202010870270.3A priority Critical patent/CN111878595A/en
Publication of CN111878595A publication Critical patent/CN111878595A/en
Pending legal-status Critical Current

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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
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • F16K1/34—Cutting-off parts, e.g. valve members, seats
    • F16K1/36—Valve members
    • F16K1/38—Valve members of conical shape
    • 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
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—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
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • F16K1/54—Arrangements for modifying the way in which the rate of flow varies during the actuation of the valve
    • 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
    • F16K27/02—Construction of housing; Use of materials therefor of lift valves
    • 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
    • F16K41/00—Spindle sealings
    • F16K41/02—Spindle sealings with stuffing-box ; Sealing rings
    • F16K41/04—Spindle sealings with stuffing-box ; Sealing rings with at least one ring of rubber or like material between spindle and housing
    • 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
    • F16K49/002—Electric heating means

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lift Valve (AREA)
  • Details Of Valves (AREA)

Abstract

The invention discloses a manual high-temperature adjusting needle valve which comprises a shell, a valve seat, a valve shaft assembly, a hand wheel assembly and a sealing assembly, wherein the valve seat is arranged on the shell; the valve shaft assembly comprises a valve shaft, a valve head, a pin shaft and a split pin, the valve shaft is connected with the valve head through the pin shaft, the valve head is fixedly connected with the pin shaft through the split pin, and the valve head extends into the valve seat; the hand wheel assembly comprises a hand wheel and a screw rod which are fixedly connected; the casing cover is established in the valve shaft outside, and the one end and the disk seat fixed connection of casing, the valve head was kept away from to the valve shaft one end is connected with the screw rod, and seal assembly installs between the one end and the casing that the valve head was kept away from to the valve shaft. The invention relates to a valve capable of controlling the flow of reaction materials in the production process of titanium sponge, zirconium sponge and hafnium sponge under the high temperature environment (400-.

Description

Manual high-temperature adjusting needle valve
Technical Field
The invention belongs to the technical field of industrial valves, and particularly relates to a manual high-temperature adjusting needle valve.
Background
Titanium, zirconium and hafnium are important strategic materials, and the titanium alloy has the characteristics of low density, high specific strength, good corrosion resistance, low thermal conductivity, no toxicity, no magnetism, weldability, good biocompatibility, strong surface decoration property and the like, and is widely applied to the fields of aviation, aerospace, chemical industry, petroleum, electric power, medical treatment, buildings, sports goods and the like. The zirconium hafnium material is a core material in nuclear energy industry, is mainly used as a sheath material of nuclear fuel and a speed reduction and control material of a nuclear reactor, has increasing demand and considerable development prospect.
The existing needle valve for regulating flow is usually used for regulating the flow of gas or liquid at low temperature or even normal temperature so as to control the gas quantity entering a container, the connection mode is generally a clamping sleeve type or threaded connection, the maximum use temperature does not exceed 450 ℃, the nominal diameter is smaller, the diameter of the common needle valve is generally between 5 and 25mm, and the common needle valve is only used in a fluid pipeline which cannot generate phase change.
In the production process of the titanium sponge, the zirconium sponge and the hafnium sponge, because reaction gas needs to convey high-temperature materials to be reacted to a reactor through a corresponding transmission pipeline under the condition of certain temperature (400-. In the normal reaction process, the flow rate of the reaction material also needs to be controlled, so as to achieve the purposes of more complete reaction process and higher product quality, therefore, a valve capable of controlling the flow rate of the reaction material under the high temperature environment (400-.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a manual high-temperature adjusting needle valve for controlling the flow of reaction materials in a high-temperature environment (400-.
In order to solve the technical problem, the technical scheme of the invention is as follows: a manual high-temperature regulating needle valve comprises a shell, a valve seat, a valve shaft assembly, a hand wheel assembly and a sealing assembly;
the valve shaft assembly comprises a valve shaft, a valve head, a pin shaft and a split pin, the valve shaft is connected with the valve head through the pin shaft, the valve head is fixedly connected with the pin shaft through the split pin, and the valve head extends into the valve seat;
the hand wheel assembly comprises a hand wheel and a screw rod which are fixedly connected;
the casing cover is established in the valve shaft outside, and the one end and the disk seat fixed connection of casing, the valve head was kept away from to the valve shaft one end is connected with the screw rod, and seal assembly installs between the one end and the casing that the valve head was kept away from to the valve shaft.
Preferably, the sealing assembly comprises a gland, a first sealing ring, a sealing rubber ring, a second sealing ring and a third sealing ring which are sequentially sleeved on the valve shaft, the gland is located at one end, close to the screw rod, of the valve shaft, and a boss is arranged in the shell to limit the position of the third sealing ring.
Preferably, the valve further comprises a drive nut connecting the screw rod and the valve shaft.
Preferably, the screw driver further comprises a plurality of studs connecting the driving nut and the shell, and the studs are inserted into the driving nut along the axial direction of the driving nut.
Preferably, the shell is provided with a collecting branch pipe.
Preferably, the electric heating device further comprises a resistance heater arranged on the shell.
Preferably, a water cooling jacket is arranged outside the sealing rubber ring.
Preferably, the manual high-temperature regulating needle valve is made of heat-resistant steel.
Compared with the prior art, the invention has the advantages that:
(1) the valve shaft moves up and down by rotating the hand wheel, namely the position relation between the shaft head and the valve seat can be adjusted to adjust the flow cross section area so as to control the flow of a medium, so that the flow adjustment of a large drift diameter is ensured, and the valve shaft is convenient and quick;
(2) the water cooling sleeve is arranged outside the sealing ring, so that the high-temperature resistance is realized, and the service temperature of the needle valve can reach 800 ℃ at most;
(3) the invention is provided with the resistance heater, so that the temperature of the valve is ensured to be higher than the process reaction temperature, and the material is prevented from being condensed to block the adjusting channel.
Drawings
FIG. 1 is a schematic view of a manual high temperature regulating needle valve of the present invention;
description of reference numerals:
1. the device comprises a shell, 1-1 parts of a boss, 1-2 parts of a collecting branch pipe;
2. a valve seat;
3-1, a valve shaft, 3-2, a valve head, 3-3, a pin shaft, 3-4 and a split pin;
4-1, a hand wheel, 4-2 and a screw rod;
5-1 parts of a gland, 5-2 parts of a first sealing ring, 5-3 parts of a sealing rubber ring, 5-4 parts of a second sealing ring, 5-5 parts of a third sealing ring;
6. a drive nut;
7. a stud;
8. a furnace cover.
Detailed Description
The following describes embodiments of the present invention with reference to examples:
it should be noted that the structures, proportions, sizes, and other elements shown in the specification are included for the purpose of understanding and reading only, and are not intended to limit the scope of the invention, which is defined by the claims, and any modifications of the structures, changes in the proportions and adjustments of the sizes, without affecting the efficacy and attainment of the same.
In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.
As shown in fig. 1, a manual high-temperature regulating needle valve comprises a shell 1, a valve seat 2, a valve shaft assembly, a hand wheel assembly and a sealing assembly;
the valve shaft assembly comprises a valve shaft 3-1, a valve head 3-2, a pin shaft 3-3 and a split pin 3-4, the valve shaft 3-1 is connected with the valve head 3-2 through the pin shaft 3-3, the valve head 3-2 is fixedly connected with the pin shaft 3-3 through the split pin 3-4, and the valve head 3-2 extends into the valve seat 2;
the hand wheel component comprises a hand wheel 4-1 and a screw rod 4-2 which are fixedly connected;
the valve shaft 3-1 is sleeved with the shell 1, one end of the shell 1 is fixedly connected with the valve seat 2, one end, far away from the valve head 3-2, of the valve shaft 3-1 is connected with the screw rod 4-2, and the sealing assembly is installed between one end, far away from the valve head 3-2, of the valve shaft 3-1 and the shell 1. The valve head 3-2 has a sealing effect, needs to be replaced after long-term use, and is beneficial to saving cost and reducing processing difficulty due to the split design.
Specifically, the sealing assembly comprises a gland 5-1, a first sealing ring 5-2, a sealing rubber ring 5-3, a second sealing ring 5-4 and a third sealing ring 5-5 which are sequentially sleeved on the valve shaft 3-1, the gland 5-1 is located at one end, close to the screw rod 4-2, of the valve shaft 3-1, and a boss 1-1 is arranged in the shell 1 to limit the position of the third sealing ring 5-5. The sealing rings are arranged at intervals, so that the sealing effect is enhanced; the sealing ring is made of metal products, has strong heat conductivity, and is in contact with the water-cooling shell to be beneficial to cooling the sealing rubber ring.
In particular, a drive nut 6 is also included that connects the screw 4-2 and the valve shaft 3-1. The transmission nut 6 is respectively in threaded connection with the screw rod 4-2 and the valve shaft 3-1.
Specifically, the screw driver further comprises a plurality of studs 7 connecting the driving nut 6 and the housing 1, and the studs 7 are inserted into the driving nut 6 along the axial direction of the driving nut 6.
Specifically, the shell 1 is provided with a collecting branch pipe 1-2.
In particular, the device also comprises a resistance heater arranged on the shell 1, so that the valve keeps a certain process temperature in the using process and the condensation of reaction materials is prevented.
Specifically, a water cooling jacket is arranged outside the sealing rubber ring 5-3, so that the sealing rubber ring 5-3 is not burnt by a high-temperature medium.
Specifically, the manual high-temperature regulating needle valve is made of heat-resistant steel. The whole needle valve is made of heat-resistant steel and has no other rubber sealing device, and the maximum use temperature can reach 800 ℃.
Firstly, a shell 1 and a valve seat 2 are sealed and welded, then a shaft head 3-2 and a valve shaft 3-1 are connected with a split pin 3-4 through a pin shaft 3-3 to form a whole, then the valve shaft 3-1 connected into a whole is arranged in the shell 1, then a first sealing ring 5-2, a sealing rubber ring 5-3, a second sealing ring 5-4 and a third sealing ring 5-5 are sleeved in the valve shaft 3-1 in sequence, then a gland 5-1 with external threads is arranged in the shell 1 through the internal threads of the shell 1, the shell 1 compresses a sealing assembly (wherein the gland 5-1 and the valve shaft 3-1 have certain gaps and do not influence the vertical movement of the valve shaft 3-1), then a transmission nut 6 and the valve shaft 3-1 are connected through threads, then a stud 7 is arranged in the shell 1 and is fastened through nuts, then the hand wheel component is installed, namely the integral installation is completed; finally, the assembled needle valve is welded on the interface (namely the furnace cover 8) of the reaction vessel in a vacuum sealing way, and the needle valve shell 1 comprises a resistance heater, so that the valve keeps a certain process temperature in the using process and the condensation of reaction materials is prevented.
The working principle is as follows:
the hand wheel 4-1 is rotated to lift the upper position and the lower position of the valve shaft 3-1 so as to change the position relation of the shaft head 3-2 and the valve seat 2 to achieve the function of regulating the flow, the transmission nut 6 is provided with internal threads and is fixed on the shell 1 through a stud, the valve shaft 3-1 is provided with external threads at the corresponding position of the transmission nut 6, and therefore the hand wheel 4-1 is rotated to achieve the effect that the flow area of a channel is changed by the up-and-down movement of the valve shaft 9-so as to control the flow of a medium, and the.
While the preferred embodiments of the present invention have been described in detail, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
Many other changes and modifications can be made without departing from the spirit and scope of the invention. It is to be understood that the invention is not to be limited to the specific embodiments, but only by the scope of the appended claims.

Claims (8)

1. A manual high temperature adjustment needle type valve which characterized in that: the valve comprises a shell, a valve seat, a valve shaft assembly, a hand wheel assembly and a sealing assembly;
the valve shaft assembly comprises a valve shaft, a valve head, a pin shaft and a split pin, the valve shaft is connected with the valve head through the pin shaft, the valve head is fixedly connected with the pin shaft through the split pin, and the valve head extends into the valve seat;
the hand wheel assembly comprises a hand wheel and a screw rod which are fixedly connected;
the casing cover is established in the valve shaft outside, and the one end and the disk seat fixed connection of casing, the valve head was kept away from to the valve shaft one end is connected with the screw rod, and seal assembly installs between the one end and the casing that the valve head was kept away from to the valve shaft.
2. A manual high temperature regulating needle valve as claimed in claim 1, wherein: the sealing assembly comprises a gland, a first sealing ring, a sealing rubber ring, a second sealing ring and a third sealing ring which are sequentially sleeved on the valve shaft, the gland is located at one end, close to the screw rod, of the valve shaft, and a boss is arranged in the shell to limit the position of the third sealing ring.
3. A manual high temperature regulating needle valve as claimed in claim 2, wherein: the valve also comprises a transmission nut which is connected with the screw rod and the valve shaft.
4. A manual high temperature regulating needle valve as claimed in claim 3, wherein: the screw driver further comprises a plurality of screw studs for connecting the transmission nut and the shell, and the screw studs are inserted into the transmission nut along the axial direction of the transmission nut.
5. A manual high temperature regulating needle valve as claimed in claim 1, wherein: and a collecting branch pipe is arranged on the shell.
6. A manual, high temperature regulating needle valve as claimed in claim 1, further comprising a resistance heater disposed on the housing.
7. A manual, high temperature regulating needle valve as claimed in claim 2 wherein a water cooling jacket is provided around said sealing rubber ring.
8. A hand operated high temperature regulating needle valve as claimed in any one of claims 1 to 7, wherein the material used for the hand operated high temperature regulating needle valve is heat resistant steel.
CN202010870270.3A 2020-08-26 2020-08-26 Manual high-temperature adjusting needle valve Pending CN111878595A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010870270.3A CN111878595A (en) 2020-08-26 2020-08-26 Manual high-temperature adjusting needle valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010870270.3A CN111878595A (en) 2020-08-26 2020-08-26 Manual high-temperature adjusting needle valve

Publications (1)

Publication Number Publication Date
CN111878595A true CN111878595A (en) 2020-11-03

Family

ID=73199741

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010870270.3A Pending CN111878595A (en) 2020-08-26 2020-08-26 Manual high-temperature adjusting needle valve

Country Status (1)

Country Link
CN (1) CN111878595A (en)

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