CN110966420A - Ball valve type air damper - Google Patents

Ball valve type air damper Download PDF

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Publication number
CN110966420A
CN110966420A CN201911421590.4A CN201911421590A CN110966420A CN 110966420 A CN110966420 A CN 110966420A CN 201911421590 A CN201911421590 A CN 201911421590A CN 110966420 A CN110966420 A CN 110966420A
Authority
CN
China
Prior art keywords
valve
valve body
valve rod
hole
handle
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
CN201911421590.4A
Other languages
Chinese (zh)
Inventor
梁师清
张生乐
潘国雄
崔进社
刘洋
夏苑
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.)
Wuchang Shipbuilding Industry Group Co Ltd
Original Assignee
Wuchang Shipbuilding Industry Group 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 Wuchang Shipbuilding Industry Group Co Ltd filed Critical Wuchang Shipbuilding Industry Group Co Ltd
Priority to CN201911421590.4A priority Critical patent/CN110966420A/en
Publication of CN110966420A publication Critical patent/CN110966420A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63J—AUXILIARIES ON VESSELS
    • B63J2/00—Arrangements of ventilation, heating, cooling, or air-conditioning
    • B63J2/02—Ventilation; Air-conditioning
    • 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
    • F16K27/06—Construction of housing; Use of materials therefor of taps or cocks
    • F16K27/067—Construction of housing; Use of materials therefor of taps or cocks with spherical plugs
    • 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
    • F16K27/10—Welded housings
    • F16K27/107—Welded housings for taps or cocks
    • 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
    • F16K35/00—Means to prevent accidental or unauthorised actuation
    • F16K35/02—Means to prevent accidental or unauthorised actuation to be locked or disconnected by means of a pushing or pulling action
    • F16K35/027—Means to prevent accidental or unauthorised actuation to be locked or disconnected by means of a pushing or pulling action the locking mechanism being actuated by pushing or pulling the valve actuator, the valve actuator being rotated subsequently to bring the valve closure element in the desired position
    • 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
    • F16K37/0016—Mechanical means having a graduated scale
    • 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
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
    • F16K5/0647—Spindles or actuating 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
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/08—Details
    • F16K5/10—Means for additional adjustment of the rate of flow
    • F16K5/103—Means for additional adjustment of the rate of flow specially adapted for gas valves

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • Details Of Valves (AREA)

Abstract

The invention discloses a ball valve type air damper, which relates to the technical field of ship ventilation systems and specifically comprises the following steps: the valve comprises a spherical valve body, a spherical valve core, a valve rod and a driving mechanism, wherein the valve body is provided with a flow passage through which air flow can pass; the valve core is positioned in the valve body, a through hole is formed in the valve core, and the through hole is a cylindrical through hole penetrating through the valve core; the valve rod penetrates through the valve body, and one side of the valve rod, which is positioned in the valve body, is connected with the valve core; the driving mechanism is positioned at one end outside the valve body and drives the valve core to rotate through the valve rod so as to open or close the flow channel. The ball valve type air damper provided by the invention is suitable for a circular ventilation pipeline, can effectively reduce the noise generated when air flow passes through the air damper, can increase the throughput of the air flow, and has better acoustic performance and air flow regulation effect.

Description

Ball valve type air damper
Technical Field
The invention relates to the technical field of ship ventilation systems, in particular to a ball valve type air damper.
Background
The ship ventilation system is an important component of a ship system, and generally, air adjusting doors are required to be arranged on air supply and exhaust branch pipes in the arrangement of a ship ventilation pipeline so as to control the temperature and the ventilation quantity of a room. The air regulating door is arranged in the ventilation pipeline and used for regulating the air flow in the ventilation pipeline.
The universal standard of air duct air adjusting doors in various ship ventilation systems is established in the national ship industry standard CB/T3726-1995 published by the Chinese ship industry general company in 1995, and the air adjusting doors in the standard are various in types and complete in specification. The air adjusting plate is connected with the main body through the air adjusting plate, and the air adjusting plate is connected with the main body through the air adjusting plate; in a ventilation state, the air adjusting plate positioned in the center of the pipeline rotates around the shaft, and the air adjusting plate is opened so as to enable wind in the ventilation pipeline to pass through.
However, in the practical application process of the circular damper in CB/T3726-1995, because there is an assembly gap between the rotating shaft of the damper plate and the valve body, the damper plate in the center of the pipeline vibrates violently after being impacted by the passing air at high speed, and the noise radiates outwards, so that there is a defect of poor acoustic performance in operation; on the other hand, because the air adjusting plate is still in the central position of the pipeline after rotating to the vertical direction around the shaft, the air adjusting plate can influence the passing performance of air flow in the pipeline, and further influence the adjusting effect of the air adjusting door.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a ball valve type air damper which is suitable for a round ventilation pipeline, can effectively reduce the noise generated when air flow passes through the air damper, can increase the throughput of the air flow, and has better acoustic performance and air flow regulation effect.
The application provides a ball valve formula air damper, it includes:
the spherical valve body is provided with a flow passage through which air flow can pass;
the spherical valve core is positioned inside the valve body, a through hole is formed in the valve core, and the through hole is a cylindrical through hole penetrating through the valve core;
the valve rod penetrates through the valve body, and one side of the valve rod, which is positioned in the valve body, is connected with the valve core;
and the driving mechanism is positioned at one end outside the valve body and drives the valve core to rotate through the valve rod so as to open or close the flow channel.
On the basis of the technical proposal, the device comprises a shell,
the drive mechanism includes:
-a connecting handle connected to the valve stem and a travel limit indicator plate, the travel limit indicator plate being provided with at least two limit holes;
the handle is connected to the outer side of the connecting handle, the handle is connected with the connecting handle through a connecting sleeve, a limiting shaft is arranged in the connecting sleeve, one end of the limiting shaft is inserted into the limiting hole, and the other end of the limiting shaft is inserted into the handle.
On the basis of the technical scheme, one end of the limiting shaft inserted into the limiting hole is conical, and the limiting hole is a conical hole.
On the basis of the technical scheme, the limiting shaft is sleeved with a spring, one end of the spring is fixedly connected with the limiting shaft, and the other end of the spring abuts against the connecting sleeve.
On the basis of the technical scheme, the valve rod comprises an upper valve rod and a lower valve rod, the upper portion of the upper valve rod is connected with the driving mechanism, the lower portion of the upper valve rod penetrates through the valve body and is connected with the valve core, the lower portion of the lower valve rod is fixedly arranged on the valve body, and the upper portion of the lower valve rod penetrates through the valve body and is movably inserted into the valve core.
On the basis of the technical scheme, the upper valve rod penetrates through the connecting handle and the stroke limit indicating plate, and the part where the upper valve rod is connected with the connecting handle is square, so that the connecting handle drives the upper valve rod to rotate.
On the basis of the technical scheme, the valve core is connected with the valve rod through a shaft seat.
On the basis of the technical scheme, the valve body comprises a left valve body and a right valve body which are connected through screws.
On the basis of the technical scheme, welding flanges are arranged at the left end and the right end of the valve body.
On the basis of the technical scheme, seven limiting holes are formed in the stroke limiting indicating plate.
Compared with the prior art, the invention has the advantages that:
the invention provides a ball valve type air damper, which comprises a spherical valve body, a spherical valve core, a valve rod and a driving mechanism, wherein the valve body is provided with a flow channel through which air flow can pass; the valve rod penetrates through the valve body, and one side of the valve rod, which is positioned in the valve body, is connected with the valve core; the driving mechanism is positioned at one end outside the valve body and drives the valve core to rotate through the valve rod so as to open or close the flow channel. By adopting the structure, the valve rod can drive the valve core to rotate so as to adjust the opening and closing of the flow channel and the opening angle, and further adjust the ventilation volume.
In addition, the limiting hole in the ball valve type air damper is a conical hole, and one end of the limiting shaft inserted into the limiting hole is conical, so that the limiting shaft can be tightly inserted into the limiting hole, an assembly gap does not exist, even if the limiting shaft is impacted by airflow passing at high speed, the limiting shaft and the stroke limiting indicating plate cannot be impacted to generate noise due to the existence of the assembly gap, and the acoustic performance of the device is further optimized.
Drawings
Fig. 1 is a front cross-sectional view of a ball valve damper according to an embodiment of the present invention.
Fig. 2 is a side cross-sectional view of an embodiment of the present invention with the ball valve damper fully open.
Fig. 3 is a front sectional view of the valve cartridge in the embodiment of the present invention.
Fig. 4 is a top view of a drive mechanism in an embodiment of the invention.
In the figure: 1-a valve body; 11-a left valve body; 12-a right valve body; 13-screw holes; 14-welding a flange; 2-a valve core; 21-a through hole; 22-upper shaft seat; 23-lower shaft seat; 31-upper valve stem; 32-lower valve stem; 4-a drive mechanism; 41-connecting handle; 42-a travel limit indicator board; 421-limiting hole; 43-a handle; 44-connecting sleeves; 45-spring; 46-limiting shaft.
Detailed Description
The invention is described in further detail below with reference to the figures and examples.
Referring to fig. 1 to 3, an embodiment of the present invention provides a ball valve type damper, which includes a spherical valve body 1, a spherical valve core 2, a valve rod, and a driving mechanism 4, wherein the valve body 1 is provided with a flow passage through which an air flow can pass; the spherical valve core 2 is positioned inside the valve body 1, a through hole 21 is arranged in the valve core 2, and the through hole 21 is a cylindrical through hole penetrating through the valve core 2; the valve rod is arranged on the valve body 1 in a penetrating way, and one side of the valve rod, which is positioned in the valve body 1, is connected with the valve core 2; the driving mechanism 4 is located at one end outside the valve body 1, and the driving mechanism 4 drives the valve core 2 to rotate through the valve rod so as to open or close the flow channel.
In the practical use process, the ball valve type air damper provided by the embodiment of the invention is arranged at the interface between the two ventilating pipelines, and the two ends of the valve body 1 are respectively connected with the two pipelines. In an initial state, the direction of the through hole 21 is vertical to the ventilation direction of the pipeline, the valve core 2 and the valve body 1 are in a closed state, and airflow cannot pass through a flow channel; when the ventilation quantity is adjusted, the valve rod is controlled to rotate through the driving mechanism 4, and then the valve core 2 is driven to rotate, so that the through hole 21 faces the ventilation direction of the pipeline, and at the moment, airflow can pass through the flow channel. The size of the flow channel can be adjusted by controlling the rotating angle of the valve core 2, and further the ventilation quantity in the pipeline is adjusted.
In the embodiment of the invention, on one hand, because the ball-shaped valve core 2 with the built-in flow channel is provided, the valve core 2 can rotate in the ball-shaped valve body 1 without generating noise, and therefore, the ventilation quantity can be adjusted according to the rotation angle of the valve core 2; on the other hand, because no other objects are arranged in the flow channel, no noise is generated when the airflow passes through the flow channel, and the acoustic performance is better.
Preferably, in the embodiment of the present invention, the inner diameter of the through hole 21 of the valve core 2 is consistent with the inner diameter of the ventilation duct, so that when the damper is fully opened, the airflow in the ventilation duct can completely pass through, and the air flow passing capacity can be enhanced.
Preferably, in the embodiment of the present invention, the middle portion of the valve core 2 is a hollow cylindrical inner cylinder, the upper end and the lower end of the valve core are spherical housings, and a certain number of reinforcing ribs are arranged between the inner cylinder and the housing, so that the overall structure of the valve core 2 is firmer.
Preferably, in the embodiment of the present invention, the spherical valve body 1 is also provided with a certain number of reinforcing ribs to make the overall structure thereof more firm.
Referring to fig. 1 and 4, further, in the embodiment of the present invention, the driving mechanism 4 includes: the stroke limiting device comprises a connecting handle 41, a stroke limiting indicating plate 42 and a handle 43 connected to the outer side of the connecting handle 41, wherein the connecting handle 41 and the stroke limiting indicating plate 42 are connected with a valve rod, and at least two limiting holes 421 are formed in the stroke limiting indicating plate 42; the handle 43 is connected with the connecting handle 41 through a connecting sleeve 44, a limiting shaft 46 is arranged in the connecting sleeve 44, one end of the limiting shaft 46 is inserted into the limiting hole 421, and the other end of the limiting shaft is inserted into the handle 43.
In the actual use process, when the limit shaft 46 is inserted into one of the limit holes 421, the handle 43 cannot move left and right, and the position of the valve rod is fixed and immovable, so that the valve core 2 is fixed at the current position and cannot rotate freely under the impact of high-speed passing air flow.
In a preferred embodiment, one end of the limiting shaft 46 inserted into the limiting hole 421 is tapered, and the limiting hole 421 is a tapered hole.
In the actual use process, the conical end of the limiting shaft 46 can be tightly inserted into the conical limiting hole 421, so that no assembly gap exists between the limiting shaft 46 and the stroke limiting indicating plate 42, and even if the device is impacted by airflow passing at high speed, the noise generated by collision between the limiting shaft 46 and the stroke limiting indicating plate 42 due to the assembly gap does not exist, so that the acoustic performance of the device is further optimized.
Further, in the embodiment of the present invention, a spring 45 is sleeved on the limiting shaft 46, one end of the spring 45 is fixedly connected to the limiting shaft 46, and the other end of the spring 45 abuts against the connecting sleeve 44, so that the limiting shaft 46 can be pulled out and ejected into the limiting hole 421.
In the actual use process, the handle 43 is pulled outwards, the limiting shaft 46 is pulled to be separated from the limiting hole 421, and the spring 45 is in a stretching state. The handle 43 is rotated to align the limiting shaft 46 with the other limiting hole 421, and at this time, the rotated handle 43 drives the valve rod to rotate, so as to drive the valve core 2 to rotate, thereby adjusting the size of the flow passage; then the handle 43 is released, the spring 45 contracts, and under the action of elastic force, the limit shaft 46 is inserted into the just aligned limit hole 421, at which time the handle 43 cannot move, the valve rod and the valve core 2 are fixed, so that the angle between the orientation of the through hole 21 and the ventilation direction of the pipeline is fixed, and the flow passage is maintained at the current size. Fig. 1 shows only both end portions of the spring 45, and the middle of the spring 45 is omitted.
Referring to fig. 1 and 2, further, in the embodiment of the present invention, the valve rod includes an upper valve rod 31 and a lower valve rod 32, an upper portion of the upper valve rod 31 is connected to the driving mechanism 4, a lower portion of the upper valve rod 31 passes through the valve body 1 and is connected to the valve core 2, a lower portion of the lower valve rod 32 is fixed to the valve body 1, and an upper portion of the lower valve rod 32 passes through the valve body 1 and is movably inserted into the valve core 2.
Because the upper valve rod 31 and the lower valve rod 32 are not positioned in the flow channel, the air flow in the flow channel cannot be blocked, the ventilation effect cannot be affected, and the air flow passing capacity is further enhanced.
Further, in the embodiment of the present invention, the upper valve rod 31 passes through the connecting handle 41 and the travel limit indicating plate 42, and a connection part between the upper valve rod 31 and the connecting handle 41 is square, so that the connecting handle 41 drives the upper valve rod 31 to rotate.
Further, in the embodiment of the invention, the valve core 2 and the valve rod are connected through a shaft seat.
In the embodiment of the present invention, an upper shaft seat 22 and a lower shaft seat 23 are respectively disposed at the upper end and the lower end of the valve core 2, the lower portion of the upper valve rod 31 is located in the upper shaft seat 22, and the lower valve rod 32 is located in the lower shaft seat 23. In the actual use process, the upper part of the lower valve rod 32 is movably inserted into the lower shaft seat 23, so that the valve core 2 can rotate on the lower valve rod 32, the lower valve rod 32 plays a limiting role in limiting the valve core 2, and the valve core 2 is prevented from deviating during rotation. The lower part of the lower valve rod 32 is fixedly connected with the lower end of the valve body 1 through a screw, and the bottom of the lower valve rod 32 is provided with a gland so as to assemble the lower valve rod 32 in the valve body 1 and the lower shaft seat 23.
Referring to fig. 1 and 2, further, in the embodiment of the present invention, the valve body 1 includes a left valve body 11 and a right valve body 12 connected by screws screwed into screw holes 13.
In the embodiment of the present invention, during assembly, the left valve body 11 may be first installed on one ventilation duct, then the right valve body 12 may be installed on the other ventilation duct, and finally the screw may be screwed into the screw hole 13 to connect the left valve body 11 and the right valve body 12.
Further, in the embodiment of the present invention, welding flanges 14 are disposed at both left and right ends of the valve body 1, and the assembly of the valve body 1 and the ventilation ducts on both sides is completed by the welding flanges 14.
As shown in fig. 1 and 4, as a preferred embodiment, seven limit holes 421 are provided on the travel limit indicating plate 42.
In the embodiment of the present invention, the valve core 2 can be fixed at seven different positions after rotating around the upper valve rod 31 through the seven limiting holes 421, so that the flow passage has seven opening degrees, and the damper has seven gears including fully open and fully closed. When the flow channel is closed, the air adjusting door is in a first gear; when the handle 43 rotates 90 degrees, the flow passage is completely opened, and the air adjusting door is adjusted to the seventh gear.
The working process of the ball valve type air damper provided by the embodiment of the invention is as follows: pulling the handle 43 until the stopper shaft 46 is disengaged from the stopper hole 421; then the handle 43 is rotated to a preset position, so that the limit shaft 46 is aligned with another limit hole 421, the handle 43 drives the upper valve rod 31 and the valve core 2 to rotate, the angle between the through hole 21 and the ventilation pipeline is changed, and the size of the flow channel is changed; the handle 43 is loosened, so that the limit shaft 46 is inserted into the corresponding limit hole 421 under the elastic force of the spring 45, thereby fixing the upper valve rod 31 and the valve core 2 and maintaining the size of the current flow passage. Therefore, the gear shifting operation of the air adjusting door is completed, and the ventilation quantity in the flow passage is adjusted.
The present invention is not limited to the above-described embodiments, and it will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the principle of the present invention, and such modifications and improvements are also considered to be within the scope of the present invention. Those not described in detail in this specification are within the skill of the art.

Claims (10)

1. The utility model provides a ball valve formula air damper which characterized in that, it includes:
the spherical valve body (1) is provided with a flow passage through which air flow can pass;
the spherical valve core (2) is positioned inside the valve body (1), a through hole (21) is formed in the valve core (2), and the through hole (21) is a cylindrical through hole penetrating through the valve core (2);
the valve rod penetrates through the valve body (1), and one side of the valve rod, which is positioned in the valve body (1), is connected with the valve core (2);
the driving mechanism (4) is located at one end outside the valve body (1), and the driving mechanism (4) drives the valve core (2) to rotate through the valve rod so as to open or close the flow channel.
2. A ball valve damper according to claim 1, wherein said drive mechanism (4) comprises:
-a connecting handle (41) connected to the valve stem and a travel limit indicating plate (42), the travel limit indicating plate (42) being provided with at least two limit holes (421);
-a handle (43) connected to the outside of the connecting handle (41), wherein the handle (43) is connected to the connecting handle (41) through a connecting sleeve (44), a limiting shaft (46) is arranged in the connecting sleeve (44), one end of the limiting shaft (46) is inserted into the limiting hole (421), and the other end of the limiting shaft is inserted into the handle (43).
3. The globe valve type damper according to claim 2, wherein an end of the stopper shaft (46) inserted into the stopper hole (421) is tapered, and the stopper hole (421) is a tapered hole.
4. The ball valve type damper according to claim 3, wherein a spring (45) is sleeved on the limiting shaft (46), one end of the spring (45) is fixedly connected with the limiting shaft (46), and the other end of the spring is abutted against the connecting sleeve (44).
5. The ball valve type damper according to claim 2, wherein the valve rod comprises an upper valve rod (31) and a lower valve rod (32), the upper part of the upper valve rod (31) is connected with the driving mechanism (4), the lower part of the upper valve rod (31) penetrates through the valve body (1) and is connected with the valve core (2), the lower part of the lower valve rod (32) is fixedly arranged on the valve body (1), and the upper part of the lower valve rod (32) penetrates through the valve body (1) and is movably inserted into the valve core (2).
6. The globe damper according to claim 5, wherein the upper valve stem (31) passes through the connection handle (41) and the stroke limit indicating plate (42), and a portion where the upper valve stem (31) is connected to the connection handle (41) is formed in a square shape so that the connection handle (41) rotates the upper valve stem (31).
7. The ball valve damper according to claim 1, wherein the spool (2) and the valve stem are connected by a shaft seat.
8. A ball valve damper according to claim 1, characterized in that the valve body (1) comprises a left valve body (11) and a right valve body (12) connected by screws.
9. A ball valve damper according to claim 1, characterized in that the left and right ends of the valve body (1) are provided with welding flanges (14).
10. The ball valve type damper according to claim 2, wherein seven of said limiting holes (421) are provided in said travel limiting indicator plate (42).
CN201911421590.4A 2019-12-31 2019-12-31 Ball valve type air damper Pending CN110966420A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911421590.4A CN110966420A (en) 2019-12-31 2019-12-31 Ball valve type air damper

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911421590.4A CN110966420A (en) 2019-12-31 2019-12-31 Ball valve type air damper

Publications (1)

Publication Number Publication Date
CN110966420A true CN110966420A (en) 2020-04-07

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ID=70038100

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201911421590.4A Pending CN110966420A (en) 2019-12-31 2019-12-31 Ball valve type air damper

Country Status (1)

Country Link
CN (1) CN110966420A (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2011824A (en) * 1934-11-26 1935-08-20 Carl A Pearson Gas heater valve
CN203703217U (en) * 2014-01-24 2014-07-09 温州鼎创管阀有限公司 Ball valve
CN203906857U (en) * 2014-02-28 2014-10-29 浙江顺源阀门有限公司 Fixed type ball valve
CN206290744U (en) * 2016-12-20 2017-06-30 温州电泰阀门有限公司 Boxing formula solid forging two-chip type ball valve

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2011824A (en) * 1934-11-26 1935-08-20 Carl A Pearson Gas heater valve
CN203703217U (en) * 2014-01-24 2014-07-09 温州鼎创管阀有限公司 Ball valve
CN203906857U (en) * 2014-02-28 2014-10-29 浙江顺源阀门有限公司 Fixed type ball valve
CN206290744U (en) * 2016-12-20 2017-06-30 温州电泰阀门有限公司 Boxing formula solid forging two-chip type ball valve

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