CN210290771U - Pressure relief protection device is prevented to harrow desiccator bottom valve nitrogen gas - Google Patents
Pressure relief protection device is prevented to harrow desiccator bottom valve nitrogen gas Download PDFInfo
- Publication number
- CN210290771U CN210290771U CN201921172819.0U CN201921172819U CN210290771U CN 210290771 U CN210290771 U CN 210290771U CN 201921172819 U CN201921172819 U CN 201921172819U CN 210290771 U CN210290771 U CN 210290771U
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- Prior art keywords
- valve
- valve body
- harrow
- gas inlet
- dryer
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 43
- 229910001873 dinitrogen Inorganic materials 0.000 title description 3
- 239000007789 gas Substances 0.000 claims abstract description 39
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 20
- 238000007789 sealing Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000002411 adverse Effects 0.000 abstract description 3
- 238000003912 environmental pollution Methods 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 30
- 239000000463 material Substances 0.000 description 10
- 238000010438 heat treatment Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 238000001291 vacuum drying Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Drying Of Solid Materials (AREA)
Abstract
The utility model discloses a nitrogen anti-pressure-relief protection device for a bottom valve of a harrow dryer, which comprises a bottom valve on the harrow dryer; the bottom valve is connected with the oil buffer tank and the reversing valve; the bottom valve comprises an upper valve body, a lower valve body, a valve clack and a piston, the upper valve body is fixedly connected with a discharge port of the harrow dryer, the valve clack is positioned in the upper valve body, the piston is positioned in the lower valve body, and a piston rod of the piston extends into the upper valve body from the lower valve body and is connected with the valve clack; the oil buffer tank is communicated with the bottom of the lower valve body through an oil pipeline, one side of the reversing valve is connected with the gas loop, the other side of the reversing valve is connected with a first gas inlet pipe and a second gas inlet pipe, the first gas inlet pipe is communicated with the upper portion of the lower valve body, and the second gas inlet pipe is communicated with a gas inlet of the oil buffer tank. The utility model has reasonable structure and simple operation, and the combination of oil and gas completely avoids the occurrence of leakage and leakage caused by the untight closing of the bottom valve due to the change of the internal temperature and pressure of the harrow dryer, avoids the adverse effect on the production and avoids the environmental pollution; the equipment cost is low, and the device is simple and practical.
Description
Technical Field
The utility model relates to a bottom valve technical field of the harrow dryer especially relates to a pressure relief protection device is prevented to harrow dryer bottom valve nitrogen gas.
Background
In the production process of pesticides, a rake dryer is commonly used for heating and drying wet materials, the rake dryer is vacuum drying equipment, large-area interlayer heating is generally adopted, water is evaporated and then pumped out by a vacuum pump, a bottom valve arranged at a discharge port of the rake dryer is generally a nitrogen valve, large type variables are easily generated by the change of temperature and pressure due to large compression amount of nitrogen, the pressure intensity in the rake dryer can be increased by gas generated during heating in the rake dryer, the bottom valve cannot be closed tightly due to insufficient nitrogen pressure at the bottom valve, leakage of materials and gas is generated in the rake dryer, adverse effects are caused to the production process, and environmental pollution can also be caused; therefore, a simple and practical anti-pressure-release protection device is urgently needed.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the prior technical problem and provides a nitrogen pressure-relief-proof protection device for a bottom valve of a harrow dryer.
In order to achieve the purpose, the utility model is implemented according to the following technical scheme:
a nitrogen anti-pressure-relief protection device for a bottom valve of a harrow dryer comprises a bottom valve on the harrow dryer; the bottom valve is also connected with an oil buffer tank and a reversing valve;
the bottom valve comprises an upper valve body, a lower valve body, a valve clack and a piston, the upper valve body is fixedly connected with a discharge port of the rake dryer, a discharge pipe is arranged on the side wall of the upper valve body, the valve clack is positioned in the upper valve body, the lower valve body is fixedly connected with the bottom of the upper valve body, the piston is positioned in the lower valve body, and a piston rod of the piston extends into the upper valve body from the lower valve body and is fixedly connected with the lower surface of the valve clack;
the oil buffer tank is communicated with the bottom of the lower valve body through an oil pipeline, and the top of the oil buffer tank is provided with an air inlet;
one side of the reversing valve is connected with a gas loop, the gas loop is connected with a control cylinder (the gas loop is in the prior art, a hydraulic oil cylinder can be referred to, and details are not repeated here), the other side of the reversing valve is connected with a first gas inlet pipe and a second gas inlet pipe, the first gas inlet pipe is communicated with the upper portion of the lower valve body, and the second gas inlet pipe is communicated with a gas inlet of the oil buffer tank.
Preferably, the reversing valve is an electromagnetic reversing valve.
Preferably, a first sealing ring is arranged at the communication position of the piston rod and the upper valve body, so that air leakage and material leakage of the upper valve body can be avoided, and the normal work of the lower valve body is ensured.
Preferably, a second sealing ring is arranged at the joint of the discharge port and the valve clack, so that air leakage and material leakage of the discharge port of the rake dryer can be avoided, and the action effect of the bottom valve is ensured.
The valve clack in the upper valve body of the utility model plugs the discharge hole when the piston rod of the piston extends, the material in the rake dryer is not leaked, the discharge hole is kept away when the piston rod contracts, and the material in the rake dryer flows into the upper valve body from the discharge hole and flows out from the discharge pipe of the upper valve body; the upper part of the lower valve body is communicated with a gas loop through a reversing valve, the bottom of the lower valve body is communicated with an oil buffer tank through an oil pipeline, the top of the oil buffer tank is also communicated with the gas loop through the reversing valve, when the bottom valve is closed, nitrogen is filled into the top of the oil buffer tank through the reversing valve, oil enters the lower valve body along the oil pipeline under the pressure of the nitrogen, the piston is stressed to enable a piston rod in the upper valve body to effectively apply force to a valve clack, the valve clack is tightly attached to a discharge port, and the phenomenon that the rake dryer leaks materials and gas is avoided; when the bottom valve needs to be opened, the air inlet pipe introduces nitrogen to the upper part of the lower valve body under the action of the reversing valve, the piston moves downwards under the pressure action of the nitrogen, oil in the lower valve body is squeezed into the oil buffer tank along the oil pipeline, the valve flap is driven to move downwards by the piston end in the upper valve body, and the discharge hole is opened for discharging; the effective opening and closing of the bottom valve can be realized by repeating the steps, and the condition that the bottom valve is not tightly closed and material leakage and air leakage are generated due to insufficient nitrogen pressure of the bottom valve caused by the change of the temperature and the pressure inside the hand rake dryer is avoided.
The utility model discloses in still including other subassemblies that can make this reation kettle normal use, it all belongs to the conventional selection in this field, the cylinder that control assembly, gas circuit connect like the switching-over valve. In addition, the devices or components of the present invention which are not limited in the present invention all adopt the conventional means in the field, for example, the piston and the like all adopt the conventional structure.
The utility model discloses an action principle: a gas loop of nitrogen is respectively communicated with the first gas inlet pipe and the second gas inlet pipe through the reversing valve, when the bottom valve is opened, the nitrogen enters the upper part of the lower valve body through the first gas inlet pipe, the piston drives the valve clack to move downwards to be far away from the discharge hole, and oil in the lower valve body flows back to the oil buffer tank along the oil pipeline; when the bottom valve is closed, nitrogen enters the oil buffer tank through the air inlet pipe II, oil in the oil buffer tank enters the lower valve body through the oil pipeline under the action of pressure, the nitrogen in the lower valve body flows out along the air inlet pipe I under the compression of the oil, and at the moment, the piston drives the valve clack to move upwards to effectively block the discharge hole.
The utility model discloses following beneficial effect has been reached: the structure is reasonable, the operation is simple, the combination of oil and gas completely avoids the condition that the bottom valve is not closed tightly due to the change of the temperature and the pressure inside the rake dryer, so that the leakage and the air leakage are caused, the adverse effect on the production is avoided, and the environment pollution is avoided; the equipment cost is low, and the method is simple and practical.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
In the figure: 1. a raking machine; 2. a discharge port; 3. an upper valve body; 4. a discharge pipe; 5. a valve flap; 6. a piston rod; 7. a piston; 8. a lower valve body; 9. a first air inlet pipe; 10. an oil conduit; 11. an oil buffer tank; 12. a diverter valve; 13. a gas circuit; 14. a second air inlet pipe; 15. and a second sealing ring.
Detailed Description
The invention will be further described with reference to the drawings and specific embodiments, illustrative embodiments and description of which are provided herein to explain the invention, but not as a limitation thereof.
As shown in figure 1, the nitrogen anti-pressure-relief protection device for the bottom valve of the harrow dryer comprises the bottom valve on the harrow dryer 1; the bottom valve is also connected with an oil buffer tank 11 and a reversing valve 12;
the bottom valve comprises an upper valve body 3, a lower valve body 8, a valve clack 5 and a piston 7, the upper valve body 3 is fixedly connected with a discharge port 2 of the harrow dryer 1, a discharge pipe 4 is arranged on the side wall of the upper valve body 3, the valve clack 5 is positioned in the upper valve body 3, the lower valve body 8 is fixedly connected with the bottom of the upper valve body 3, the piston 7 is positioned in the lower valve body 8, and a piston rod 6 of the piston 7 extends into the upper valve body 3 from the lower valve body 8 and is fixedly connected with the lower surface of the valve clack 5;
the oil buffer tank 11 is communicated with the bottom of the lower valve body 8 through an oil pipeline 10, and an air inlet is formed in the top of the oil buffer tank 11;
one side of the reversing valve 12 is connected with a gas loop 13, the other side of the reversing valve is connected with a first gas inlet pipe 9 and a second gas inlet pipe 14, the first gas inlet pipe 9 is communicated with the upper portion of the lower valve body 8, and the second gas inlet pipe 14 is communicated with a gas inlet of the oil buffer tank 11.
The reversing valve 12 is an electromagnetic reversing valve.
And a first sealing ring is arranged at the communication position of the piston rod 6 and the upper valve body 3, so that air leakage and material leakage of the upper valve body 3 can be avoided, and the normal work of the lower valve body 8 is ensured.
And a second sealing ring 15 is arranged at the joint of the discharge port 2 and the valve clack 5, so that air leakage and material leakage of the discharge port 2 of the rake dryer can be avoided, and the action effect of the bottom valve is ensured.
The technical scheme of the utility model is not limited to the restriction of above-mentioned specific embodiment, all according to the utility model discloses a technical scheme makes technical deformation, all falls into within the protection scope of the utility model.
Claims (4)
1. A nitrogen anti-pressure-relief protection device for a bottom valve of a harrow dryer comprises a bottom valve on the harrow dryer; the method is characterized in that: the bottom valve is also connected with an oil buffer tank and a reversing valve;
the bottom valve comprises an upper valve body, a lower valve body, a valve clack and a piston, the upper valve body is fixedly connected with a discharge port of the rake dryer, a discharge pipe is arranged on the side wall of the upper valve body, the valve clack is positioned in the upper valve body, the lower valve body is fixedly connected with the bottom of the upper valve body, the piston is positioned in the lower valve body, and a piston rod of the piston extends into the upper valve body from the lower valve body and is fixedly connected with the lower surface of the valve clack;
the oil buffer tank is communicated with the bottom of the lower valve body through an oil pipeline, and the top of the oil buffer tank is provided with an air inlet;
one side of the reversing valve is connected with a gas loop, the other side of the reversing valve is connected with a first gas inlet pipe and a second gas inlet pipe, the first gas inlet pipe is communicated with the upper portion of the lower valve body, and the second gas inlet pipe is communicated with a gas inlet of the oil buffer tank.
2. The nitrogen pressure-relief-preventing protection device for the bottom valve of the harrow dryer according to claim 1, which is characterized in that: the reversing valve is an electromagnetic reversing valve.
3. The nitrogen pressure-relief-preventing protection device for the bottom valve of the harrow dryer according to claim 1, which is characterized in that: and a first sealing ring is arranged at the communication position of the piston rod and the upper valve body.
4. The nitrogen pressure-relief-preventing protection device for the bottom valve of the harrow dryer according to claim 1, which is characterized in that: and a second sealing ring is arranged at the joint of the discharge hole and the valve clack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921172819.0U CN210290771U (en) | 2019-07-24 | 2019-07-24 | Pressure relief protection device is prevented to harrow desiccator bottom valve nitrogen gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921172819.0U CN210290771U (en) | 2019-07-24 | 2019-07-24 | Pressure relief protection device is prevented to harrow desiccator bottom valve nitrogen gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210290771U true CN210290771U (en) | 2020-04-10 |
Family
ID=70104360
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921172819.0U Active CN210290771U (en) | 2019-07-24 | 2019-07-24 | Pressure relief protection device is prevented to harrow desiccator bottom valve nitrogen gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210290771U (en) |
-
2019
- 2019-07-24 CN CN201921172819.0U patent/CN210290771U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A nitrogen anti pressure relief protection device for bottom valve of rake dryer Effective date of registration: 20210929 Granted publication date: 20200410 Pledgee: Bank of China Limited by Share Ltd. Jiaozuo branch Pledgor: Salf (Henan) agrochemical Co.,Ltd. Registration number: Y2021980010259 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230419 Granted publication date: 20200410 Pledgee: Bank of China Limited by Share Ltd. Jiaozuo branch Pledgor: Salf (Henan) agrochemical Co.,Ltd. Registration number: Y2021980010259 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A nitrogen pressure relief protection device for the bottom valve of a rake dryer Effective date of registration: 20230421 Granted publication date: 20200410 Pledgee: Bank of China Limited by Share Ltd. Jiaozuo branch Pledgor: Salf (Henan) agrochemical Co.,Ltd. Registration number: Y2023980038646 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20200410 Pledgee: Bank of China Limited by Share Ltd. Jiaozuo branch Pledgor: Salf (Henan) agrochemical Co.,Ltd. Registration number: Y2023980038646 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A nitrogen pressure relief protection device for the bottom valve of a rake dryer Granted publication date: 20200410 Pledgee: Bank of China Limited by Share Ltd. Mengzhou branch Pledgor: Salf (Henan) agrochemical Co.,Ltd. Registration number: Y2024980015582 |