CN220151900U - Safety valve for storage tank - Google Patents
Safety valve for storage tank Download PDFInfo
- Publication number
- CN220151900U CN220151900U CN202320211215.2U CN202320211215U CN220151900U CN 220151900 U CN220151900 U CN 220151900U CN 202320211215 U CN202320211215 U CN 202320211215U CN 220151900 U CN220151900 U CN 220151900U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve core
- storage tank
- normally open
- port
- 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.)
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- 239000012530 fluid Substances 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 9
- 230000000694 effects Effects 0.000 claims description 3
- 239000003921 oil Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000011550 stock solution Substances 0.000 description 1
Abstract
The storage tank safety valve consists of a valve body, a valve core, a hydraulic pump, a normally open electromagnetic valve and other devices. The valve body is also provided with a valve port and a valve core cavity. The valve core is arranged in the valve core cavity structure, the valve core cavity and the cover plate component form a hydraulic cylinder structure, the lower end of the valve core is a conical section, and the conical section and a valve port on the valve body form a valve structure. Three components are connected between the valve core cavity of the valve body and the port of the storage tank through pipelines. The three components are an electric hydraulic pump, a manual pump and a normally open solenoid valve. Under normal state, the valve is operated by the electric hydraulic pump, under the condition of power failure, the normally open electromagnetic valve is opened, the valve core cavity is communicated with the pipeline of the port of the storage tank, and the valve core closes the valve under the action of dead weight and fluid pressure difference.
Description
Technical field:
the storage tank safety valve belongs to storage tank accessory equipment in the field of oil depot storage and transportation, and is especially special valve for ensuring safe operation of storage tank.
The background technology is as follows:
the storage tank of the oil depot is provided with a liquid storage inlet and outlet pipeline, and a pump and a valve arranged on the pipeline control the inlet and outlet of the liquid storage and block the liquid storage. The valve of present oil depot is electric valve mostly, when emergency, especially the circumstances that appears the conflagration at first need cut off the power supply, and electric valve can't close after the outage, if the valve is open, and the pipeline appears the damage, and the stock solution of storage tank will all leak out and cause bigger harm. Therefore, in the current tank safety management regulations, it is required that an emergency shut-off valve must be installed in a pipeline, and in the event of an emergency such as a fire or a pipeline breakage, the safety valve is automatically closed to prevent leakage of the liquid in the liquid storage tank even if the power is turned off. The existing emergency shut-off valve mostly uses an electrohydraulic valve, and the electrohydraulic valve consists of an electrohydraulic actuator and a valve. The electrohydraulic actuator is a hydraulic cylinder driving system, high-pressure oil is pumped into an energy accumulator by using an electric oil pump, the working state is controlled by a plurality of electromagnetic valves, one normally open electromagnetic valve controls the pipeline from the energy accumulator to the hydraulic cylinder, and when an emergency or outage occurs, the normally open electromagnetic valve is opened in a power failure mode, and the hydraulic oil of the energy accumulator drives the hydraulic cylinder to close the valve. The main disadvantage of the electrohydraulic valve is the complex structure and high manufacturing cost.
The utility model comprises the following steps:
the utility model provides a storage tank safety valve with simple structure and low cost. The technical scheme used by the utility model is as follows: the storage tank safety valve consists of a valve body, a cover plate component, a valve core, an electric hydraulic pump, a manual pump, a normally open electromagnetic valve, a manual valve and a connecting pipeline. The valve body is provided with 2 inlets and outlets, one is a storage tank port and the other is a pipeline port; the valve body is also provided with a valve port and a valve core cavity. The valve core is arranged in the valve core cavity structure, the valve core cavity and the cover plate component form a hydraulic cylinder structure, the lower surface of the valve core is a cone end surface, the cone end surface and a valve port on the valve body form a valve structure, and the cone end surface of the valve core is provided with a sealing ring to enhance the sealing effect. Three components are connected between the valve core cavity of the valve body and the port of the storage tank through pipelines. The three components are an electric hydraulic pump, a manual pump and a normally open solenoid valve. The electric hydraulic pump drives a valve core and a valve core cavity to form a hydraulic cylinder structure to operate a switch of a valve, when the electric hydraulic pump discharges liquid in the valve core cavity to a storage tank port of a valve body, the valve core rises, the valve is opened, and when the hydraulic pump works in the opposite direction, the valve is closed. The normally open electromagnetic valve and the manual valve are connected in series, and two ends of the normally open electromagnetic valve and the manual valve are respectively connected to a spool cavity of the valve body and a port of the storage tank through connecting pipelines. The manual pump is used for replacing the electric hydraulic pump to open the valve under the condition that the electric hydraulic pump cannot work when the power is cut off. The normally open electromagnetic valve is used for opening the pipelines of the valve core cavity and the storage tank port under the condition of power failure, and the valve core closes the valve under the action of dead weight and fluid pressure difference. A manual switch is connected in series with the pipeline of the normally open electromagnetic valve and is used for closing the pipeline channel of the normally open electromagnetic valve so as to open the valve by using a manual pump.
Description of the drawings:
the utility model will be further described with reference to the drawings and examples.
Fig. 1 is a schematic structural view of the present utility model.
In fig. 1, a valve cover plate component, 2, a control circuit, 3, a manual pump, 4, an electric hydraulic pump, 5, a position sensor, 6, a valve body, 7, a pipeline port, 8, a storage tank port, 9, a valve port, 10, a sealing ring, 11, a valve core, 12, a manual valve, 13, a normally open electromagnetic valve, 14 and a valve core cavity.
Specific embodiments:
in fig. 1, the valve body (6) is structured with a pipe port (7), a tank port (8) and a spool chamber (14). The valve core (11) is arranged in a valve core cavity (14) of the valve body (6), and the valve cover plate component (1) is arranged on the valve body (6). The valve cover plate component (1), the valve core (11) and the valve core cavity (14) form a hydraulic cylinder structure, and the valve core (11) corresponds to a piston of the hydraulic cylinder. The valve core (11) and the valve port (10) of the valve body (6) form a valve structure. The lower part of the valve core (11) is a cone end face, and the cone end face and the valve port (10) form a valve sealing surface; the end face of the cone is provided with a sealing ring (9), and the sealing ring (9) enhances the sealing effect. The electric hydraulic pump (4) is fixed on the valve body (6), and two ports of the electric hydraulic pump (4) are respectively communicated with a spool cavity (14) of the valve body (6) and the storage tank port (8) through pipelines. When the electric hydraulic pump (4) pumps the liquid in the valve core cavity (14) to the storage tank port (8), the pressure in the valve core cavity (14) is lower than the pressure at the lower end of the valve core (11), the valve core (11) rises, and the valve is opened. Conversely, when the electric hydraulic pump (4) pumps the liquid from the tank port (8) to the spool cavity (14), the valve will close. The normally open electromagnetic valve (13) is connected with a manual valve (12) in series, and two ends of the combination of the normally open electromagnetic valve (13) and the manual valve (12) are connected to a spool cavity (14) of the valve body (6) and the storage tank port (8) through pipelines. In a normal state, the normally open electromagnetic valve (13) is electrified, the normally open electromagnetic valve (13) is closed, the valve core cavity (14) is cut off from all pipelines of the storage tank port (8), the valve core (11) is static, and the valve is kept to be in an open or closed state. In the event of an emergency, the valve can be closed in 2 operating modes. One is to drive an electric hydraulic pump (4) to close a valve by a control circuit (2). The other is to automatically close the valve by cutting off the power supply. The principle is as follows: the power supply is cut off, the normally open electromagnetic valve (13) is powered off, the normally open electromagnetic valve (13) is automatically opened, and the valve core (11) automatically falls down to close the valve under the action of dead weight and fluid pressure difference. A manual pump (3) is arranged on the valve cover plate component (1), a suction inlet of the manual pump (3) is arranged in the valve core cavity (14), and an output port is connected to a storage tank port (8) of the valve body (6) through a pipeline. The manual pump (3) is used for opening the valve through the manual pump (3) when the power supply is not available and the valve is required to be opened. Because there is no power supply, the normally open solenoid valve (13) is opened, and the manual pump (3) can be used to open the valve by closing the manual valve (12) to disconnect the spool chamber (14) from the reservoir port (8).
Claims (5)
1. A storage tank relief valve for use with a storage tank, characterized by: the storage tank safety valve mainly comprises a valve body, a cover plate component, a valve core, an electric hydraulic pump, a manual pump, a normally open electromagnetic valve, a manual valve and a connecting pipeline; the cover plate component, the valve core cavity of the valve body and the valve core form a hydraulic cylinder structure, and the electric hydraulic pump drives the hydraulic cylinder structure to operate the switch of the valve; the valve can be opened by using a manual pump when the power is off; when the power is off, the normally open electromagnetic valve is opened, and the valve is automatically closed.
2. The tank safety valve according to claim 1, characterized in that: the upper part of the valve body is provided with a valve core cavity, the valve core is arranged in the valve core cavity, and the valve core cavity, the valve core and the cover plate component form a hydraulic cylinder structure; the lower part of the valve core is a conical end surface, the conical end surface and a valve port of the valve body form a sealing surface of the valve, and the conical end surface of the valve core is provided with a sealing ring so as to enhance the sealing effect.
3. The tank safety valve according to claim 1, characterized in that: an electric hydraulic pump is arranged on the valve body, 2 ports of the hydraulic pump are respectively connected to a valve core cavity of the valve body and a storage tank port through connecting pipelines, when the electric hydraulic pump pumps liquid in the valve core cavity to the storage tank port, a valve core rises, and a valve is opened; the electric hydraulic pump reverses and closes the valve.
4. The tank safety valve according to claim 1, characterized in that: the normally open electromagnetic valve and the manual valve are connected in series, and two ends of the normally open electromagnetic valve and the manual valve are respectively connected to a spool cavity of the valve body and a port of the storage tank through connecting pipelines; when the normally open electromagnetic valve is powered off, the normally open electromagnetic valve is opened, and the valve is automatically closed under the action of the dead weight of the valve core and the fluid pressure difference.
5. The tank safety valve according to claim 1, characterized in that: a manual pump is mounted on the cover member with an inlet in the spool chamber and an outlet connected to the tank port of the valve body by a connecting line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320211215.2U CN220151900U (en) | 2023-02-01 | 2023-02-01 | Safety valve for storage tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320211215.2U CN220151900U (en) | 2023-02-01 | 2023-02-01 | Safety valve for storage tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220151900U true CN220151900U (en) | 2023-12-08 |
Family
ID=89015143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320211215.2U Active CN220151900U (en) | 2023-02-01 | 2023-02-01 | Safety valve for storage tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220151900U (en) |
-
2023
- 2023-02-01 CN CN202320211215.2U patent/CN220151900U/en active Active
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