CN215371144U - Self-operated nitrogen sealing valve applied to storage tank - Google Patents
Self-operated nitrogen sealing valve applied to storage tank Download PDFInfo
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- CN215371144U CN215371144U CN202121782596.7U CN202121782596U CN215371144U CN 215371144 U CN215371144 U CN 215371144U CN 202121782596 U CN202121782596 U CN 202121782596U CN 215371144 U CN215371144 U CN 215371144U
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Abstract
The utility model discloses a self-operated nitrogen sealing valve applied to a storage tank, which comprises a valve body, a valve cover arranged on the valve body, an actuator arranged on the valve cover and a valve rod connected with the actuator, wherein the valve cover is arranged on the valve body; the actuator is provided with a spring outer cover; the spring outer cover and the actuator bracket are provided with adaptive positioning components; and a guide assembly is arranged in the spring outer cover. The valve rod control device is simple in structure, convenient to use and convenient to maintain and maintain in the later period, and improves the smoothness of the movement of the valve rod, so that the control precision is improved.
Description
Technical Field
The utility model relates to the technical field of nitrogen sealing valves, in particular to a self-operated nitrogen sealing valve applied to a storage tank.
Background
Nitrogen seals valve mainly used storage tank top, maintain the pressure-fired pressure of storage tank, keep apart material and external contact, reduce volatilizing and the waste of material, protection storage tank safety, in the prior art, the spring dustcoat on the executor is direct to be fixed on the executor through welded mode, thereby be not convenient for to the maintenance in adjustment spring later stage, and the valve rod drives adjusting spring and compresses, do not set up corresponding guider during the valve rod motion, thereby the deviation appears easily during the valve rod motion, the precision of valve body control has been reduced. Therefore, a self-operated nitrogen sealing valve applied to a storage tank is provided.
Disclosure of Invention
The utility model aims to solve the problems that in the prior art, a spring outer cover on an actuator is directly fixed on the actuator in a welding mode, so that the later maintenance of an adjusting spring is inconvenient, a valve rod drives the adjusting spring to compress, and a corresponding guide device is not arranged when the valve rod moves, so that deviation is easy to occur when the valve rod moves, the control precision of a valve body is reduced, and the like.
In order to achieve the purpose, the utility model provides the following technical scheme: a self-operated nitrogen seal valve applied to a storage tank comprises a valve body, a valve cover arranged on the valve body, an actuator arranged on the valve cover and a valve rod connected with the actuator; the actuator is provided with a spring outer cover; the spring actuator is characterized in that a positioning component matched with the spring outer cover is arranged between the spring outer cover and the actuator; and a guide assembly is arranged in the spring outer cover.
Preferably, the spring housing is provided with a housing bottom plate; the positioning assembly comprises a mounting hole and a positioning boss which are arranged on the actuator, a mounting boss which is arranged on the outer cover bottom plate and is matched with the mounting hole, and a positioning groove which is matched with the positioning boss; and a sealing assembly is arranged on the mounting boss.
Preferably, the seal assembly includes a plurality of seal grooves provided on the mounting boss and a seal ring mounted in the seal groove.
Preferably, the adjusting spring assembly is installed in the spring housing; the valve body is connected with the adjusting spring assembly; the regulated spring seat assembly moves within the spring housing along the guide assembly.
Preferably, the adjusting spring assembly comprises a spring seat and a spring pressing plate which are arranged in the spring housing, and an adjusting spring arranged between the spring seat and the spring pressing plate; the guide assembly is connected with a spring seat and a spring pressing plate in the spring seat assembly of the adjusting spring.
Preferably, the spring outer cover is also provided with a dust cover and an adjusting screw rod; the adjusting screw rod is connected with the spring pressing plate; the spring pressing plate is installed in the spring outer cover through an adjusting screw rod, and an adjusting nut is further installed on the adjusting screw rod.
Preferably, the guide assembly comprises a plurality of guide rods arranged in the spring housing and guide grooves which are arranged on the spring seats and the spring pressing plates and are matched with the guide rods.
Preferably, the valve body is also internally provided with a valve seat and a medium inlet and a medium outlet; and the valve rod is provided with a valve core matched with the valve seat.
The utility model has the beneficial effects that: this nitrogen seals valve simple structure, convenient to use, the maintenance and the maintenance in the later stage of being convenient for improve the steadiness of valve rod motion to improve the precision of control.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a partially enlarged view of the present invention at a.
Fig. 3 is a partially enlarged view of the present invention at B.
Illustration of the drawings: 1, a valve body; 101 a valve seat; 102 a media inlet; 103 a medium outlet; 2, a valve cover; 3, an actuator; 4, a valve rod; 401 a valve core; 5, a spring housing; 501, covering a bottom plate of the housing; 6, positioning the assembly; 601, mounting holes; 602 positioning the boss; 603 mounting a boss; 604 positioning a groove; 605 sealing the assembly; 606 sealing the groove; 607 sealing rings; 7, a guide component; 701 a guide rod; 702 a guide groove; 8 adjusting the spring assembly; a 801 spring seat; 802 a spring platen; 803 adjusting the spring; 804 a dust cover; 805 adjusting screws; 806 adjust the nut.
Detailed Description
The self-operated nitrogen sealing valve applied to the storage tank according to the present invention will be further described with reference to the accompanying drawings.
Referring to fig. 1, in the embodiment, a self-operated nitrogen sealing valve applied to a storage tank includes a valve body 1, a valve cover 2 installed on the valve body 1, an actuator 3 installed on the valve cover 2, and a valve rod 4 connected to the actuator 3; a spring outer cover 5 is arranged on the actuator 3; the device is characterized in that a positioning component 6 which is matched with the spring outer cover 5 is arranged between the spring outer cover and the actuator 3; a guide assembly 7 is arranged in the spring outer cover 5; through the arrangement of the positioning assembly 6 between the spring housing 5 and the actuator 3, the spring housing 5 is detachably arranged on the actuator 3 through the positioning assembly 6, so that the later maintenance is facilitated; through the setting of guide assembly 7 on spring housing 5, valve rod 4 and adjusting spring assembly 8 move along guide assembly 7 to improve the precision of valve body 1 control.
Referring to fig. 1-2, the spring housing 5 is provided with a housing bottom plate 501; the positioning assembly 6 comprises a mounting hole 601 and a positioning boss 602 arranged on the actuator 3, a mounting boss 603 arranged on the housing bottom plate 501 and matched with the mounting hole 601, and a positioning groove 604 matched with the positioning boss 602; a sealing component 605 is arranged on the mounting boss 603; the seal assembly 605 comprises a plurality of seal grooves 606 arranged on the mounting boss 603 and seal rings 607 mounted in the seal grooves 606; the adjusting spring assembly 8 is arranged in the spring housing 5; the valve body 1 is connected with an adjusting spring assembly 8; the adjusted spring seat assembly 8 moves along the guide assembly 7 within the spring housing 5; through the arrangement of the mounting hole 601 and the positioning boss 602 on the actuator 3, the housing bottom plate 501 is matched with the mounting hole 601 through the mounting boss 603, and the positioning groove 604 is matched with the positioning boss 602 to position and mount the spring housing 5 on the actuator 3, so that the mounting of the spring housing 5 is facilitated; by arranging the sealing groove 606 on the mounting boss 603, the sealing ring 607 is mounted in the sealing groove 606, so that the sealing performance between the spring housing 5 and the actuator 3 is increased.
Referring to fig. 1-3, the adjustment spring assembly 8 includes a spring seat 801 and a spring pressure plate 802 mounted within the spring housing 5, and an adjustment spring 803 mounted between the spring seat 801 and the spring pressure plate 802; the guide assembly 7 is connected with a spring seat 801 and a spring pressure plate 802 in the adjusting spring seat assembly 8; the spring outer cover 5 is also provided with a dust cover 804 and an adjusting screw 805; the adjusting screw 805 is connected with the spring pressing plate 802; the spring pressure plate 802 is installed in the spring housing 5 through an adjusting screw 805, and an adjusting nut 806 is also installed on the adjusting screw 805; the guide assembly 7 comprises a plurality of guide rods 701 arranged in the spring housing 5 and guide grooves 702 which are arranged on the spring seats 801 and the spring pressing plates 802 and are matched with the guide rods 701; a valve seat 101, a medium inlet 102 and a medium outlet 103 are further arranged in the valve body 1; a valve core 401 matched with the valve seat 101 is arranged on the valve rod 4; through the arrangement of the guide rod 701 in the spring housing 5, the spring seat 801 and the spring pressing plate 802 are matched with the guide rod 701 through the guide groove 702 and slide along the guide rod 701, so that the control precision of the valve 1 is improved.
In the utility model, the spring housing 5 is matched with the mounting hole 601 on the actuator 3 through the mounting boss 603 on the housing bottom plate 501, the positioning groove 604 is matched with the positioning boss 602 and is positioned and mounted on the actuator 3, and is fixed by a screw, when in use, nitrogen enters the valve body 1 through the medium inlet 102, the valve core 401 is pushed to move upwards, the valve core 401 drives the valve rod 4 to move upwards, the valve rod 4 drives the spring seat 801 to move upwards along the guide rod 701, so that the adjusting spring 803 is compressed, then, nitrogen gas is discharged from the medium outlet 103 of the valve body 1, and when the pressure of the nitrogen gas is less than the pressure of the regulating spring 803, the adjusting spring 803 starts to reset to drive the spring seat 801 to move downwards, the spring seat 8501 drives the valve rod 4 to move downwards, the valve rod 4 drives the valve core 401 to move downwards to be matched with the valve seat 101, therefore, the valve body 1 is in a closed state, and only the spring housing 5 needs to be detached when the adjusting spring 803 is maintained in a later period.
The above embodiments are illustrative of the present invention, and are not intended to limit the present invention, and any simple modifications of the present invention are within the scope of the present invention.
Claims (8)
1. A self-operated nitrogen seal valve applied to a storage tank comprises a valve body (1), a valve cover (2) arranged on the valve body (1), an actuator (3) arranged on the valve cover (2) and a valve rod (4) connected with the actuator (3); a spring outer cover (5) is arranged on the actuator (3); the device is characterized in that a positioning component (6) which is matched with the spring outer cover (5) and the actuator (3) is arranged between the spring outer cover and the actuator; a guide assembly (7) is arranged in the spring outer cover (5).
2. The self-operated nitrogen sealing valve applied to the storage tank is characterized in that: an outer cover bottom plate (501) is arranged on the spring outer cover (5); the positioning assembly (6) comprises a mounting hole (601) and a positioning boss (602) which are arranged on the actuator (3), a mounting boss (603) which is arranged on the outer cover bottom plate (501) and is matched with the mounting hole (601), and a positioning groove (604) which is matched with the positioning boss (602); and a sealing component (605) is arranged on the mounting boss (603).
3. The self-operated nitrogen sealing valve applied to the storage tank is characterized in that: the seal assembly (605) comprises a plurality of seal grooves (606) arranged on the mounting boss (603) and seal rings (607) mounted in the seal grooves (606).
4. The self-operated nitrogen sealing valve applied to the storage tank is characterized in that: the adjusting spring assembly (8) is arranged in the spring outer cover (5); the valve body (1) is connected with an adjusting spring assembly (8); the adjusted spring seat assembly (8) moves along the guide assembly (7) in the spring housing (5).
5. The self-operated nitrogen sealing valve applied to the storage tank is characterized in that: the adjusting spring assembly (8) comprises a spring seat (801) and a spring pressing plate (802) which are arranged in the spring housing (5) and an adjusting spring (803) which is arranged between the spring seat (801) and the spring pressing plate (802); the guide assembly (7) is connected with a spring seat (801) and a spring pressing plate (802) in the adjusting spring seat assembly (8).
6. The self-operated nitrogen sealing valve applied to the storage tank is characterized in that: the spring outer cover (5) is also provided with a dust cover (804) and an adjusting screw rod (805); the adjusting screw rod (805) is connected with the spring pressing plate (802); the spring pressing plate (802) is installed in the spring housing (5) through an adjusting screw rod (805), and an adjusting nut (806) is further installed on the adjusting screw rod (805).
7. The self-operated nitrogen sealing valve applied to the storage tank is characterized in that: the guide assembly (7) comprises a plurality of guide rods (701) arranged in the spring housing (5) and guide grooves (702) which are arranged on the spring seats (801) and the spring pressing plates (802) and are matched with the guide rods (701).
8. The self-operated nitrogen sealing valve applied to the storage tank is characterized in that: a valve seat (101) and a medium inlet (102) and a medium outlet (103) are also arranged in the valve body (1); and a valve core (401) matched with the valve seat (101) is arranged on the valve rod (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121782596.7U CN215371144U (en) | 2021-08-02 | 2021-08-02 | Self-operated nitrogen sealing valve applied to storage tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121782596.7U CN215371144U (en) | 2021-08-02 | 2021-08-02 | Self-operated nitrogen sealing valve applied to storage tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215371144U true CN215371144U (en) | 2021-12-31 |
Family
ID=79614181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121782596.7U Active CN215371144U (en) | 2021-08-02 | 2021-08-02 | Self-operated nitrogen sealing valve applied to storage tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215371144U (en) |
-
2021
- 2021-08-02 CN CN202121782596.7U patent/CN215371144U/en active Active
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