CN203051785U - Multifunctional constant air volume and variable air volume seal valve - Google Patents
Multifunctional constant air volume and variable air volume seal valve Download PDFInfo
- Publication number
- CN203051785U CN203051785U CN 201220748435 CN201220748435U CN203051785U CN 203051785 U CN203051785 U CN 203051785U CN 201220748435 CN201220748435 CN 201220748435 CN 201220748435 U CN201220748435 U CN 201220748435U CN 203051785 U CN203051785 U CN 203051785U
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- valve
- valve body
- air volume
- tensile axis
- variable air
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Abstract
The utility model relates to a multifunctional constant air volume and variable air volume seal valve which comprises a valve body and a valve sheet. A stretching shaft is arranged inside the valve body through a stretching shaft support, the front end of the stretching shaft is fixedly installed with the valve sheet, a gear groove is formed at the rear end of the stretching shaft, a limiting gear is installed in the gear groove in a meshed mode, the limiting gear is connected with an electric actuator through a counter, and the electric actuator is installed on the outer wall of the valve body. The multifunctional constant air volume and variable air volume seal valve is reasonable in design, simple in structure, novel, practical and wide in application. The seal valve can satisfy the safety control demands of room pressure, pressure differences of all rooms, ventilation volume, temperature and humidity and all aspects of a whole laboratory, at the same time lowers energy consumption, provides a safe and comfortable environment for the laboratory, reduces early-stage investment of a user, and reduces cost in operation, energy consumption, maintenance and other aspects for the user.
Description
Technical field
The utility model relates to tests with airtight cabinet field, especially a kind of multi-functional fixed, variable air flow airtight valve.
Background technique
The laboratory is be used to the particular surroundings of finishing various experimentation works, and no matter the laboratory is used for the research and teaching of school, the research and development of pharmaceutical industry, the research of chemical industry, still is used for medical research, and its running must be reliable.The requirement that present general its reliability of common airtight valve does not reach special experimental laboratory mostly, system just can not accurately control air quantity according to the needs that reality is used like this.Though the import airtight valve can be satisfied the demand, its price is very expensive, and the cost in laboratory has certain restriction mostly, so imported product is not suitable for applying.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of reliability height and cost low multi-functional fixed, variable air flow airtight valve.
The utility model solves its technical problem and is achieved through the following technical solutions:
A kind of multi-functional fixed, variable air flow airtight valve, comprise valve body and valve block, it is characterized in that: by the tensile axis support tensile axis is installed in the valve body, front end and the valve block of this tensile axis install, a gear grooved is installed in the rear end of tensile axis, a position limited gear is installed in engagement on this gear grooved, and this position limited gear is connected with an electric actuator by counter, and this electric actuator is installed on the outer wall of valve body.
And valve body is the stainless steel body by the seamless welding production of stainless steel plate integral.
And valve body entrance point to the valve block internal diameter at position limited gear place diminishes gradually.
And, the entrance point of valve body and outlet end are all installed a tensile axis support, each tensile axis support constitutes by connecting plate and a plurality of strut, and a through hole is made in the axle center of connecting plate, and the two ends of tensile axis are inserted into respectively in the through hole of entrance point connecting plate and outlet end connecting plate; One end of each strut all is packed on the connecting plate, and the other end is installed on the valve interior wall.
Advantage of the present utility model and beneficial effect are:
1, this airtight valve drives the change of opening area of the flexible realization valve block of tensile axis by the engagement of electric actuator, counter controls position limited gear and gear grooved, thereby reaches the constant effect of air quantity that keeps.This airtight valve is fit to keep the constant wind quantity of laboratory and some special ventilations, exhaust equipment, as fume hood.
2, this airtight valve has the function of automatic adjusting, accurate control, when satisfying the Ventilation Control requirement, can reduce the user in input and the expense aspect safeguarding, so be adapted at applying in the laboratory.
3, the critical piece of this airtight valve all adopts high-quality 304 stainless steels to make, and its inside is equipped with precision-fit gear and teeth groove, so the mechanical structure of this airtight valve is stable, has at utmost guaranteed the working life of product.
4, noise that this airtight valve is sent out is low, meets the demand of experimental situation.In addition, this airtight valve can and be made according to its boundary dimension of concrete Wind Coverage Calculation.
5, the utility model is a kind of reasonable in design, simple in structure, Nover practical, broad-spectrum multi-functional fixed, variable air flow airtight valve, this airtight valve can satisfy the safety control requirement of room pressure, each room pressure reduction, ventilation, temperature and humidity and the individual aspect in whole laboratory, cut down the consumption of energy simultaneously, the environment of safety and comfort is provided for the laboratory, reduce user's early investment, reduce the user in the expense of aspects such as operation, energy consumption and maintenance.
Description of drawings
Fig. 1 is structural representation of the present utility model;
The right elevation of Fig. 2 Fig. 1;
Fig. 3 is the schematic representation of tensile axis support;
Fig. 4 is the schematic representation of valve block.
Embodiment
The utility model is described in further detail below by specific embodiment, and following examples are descriptive, is not determinate, can not limit protection domain of the present utility model with this.
A kind of multi-functional fixed, variable air flow airtight valve comprises valve body 5 and valve block 6, and valve body is the stainless steel body by the seamless welding production of stainless steel plate integral.By tensile axis support 8 tensile axis 7 is installed in the valve body, its concrete linkage structure is: the entrance point of valve body and outlet end are all installed a tensile axis support, each tensile axis support constitutes by connecting plate 10 and a plurality of strut 9, a through hole is made in the axle center of connecting plate, and the two ends of tensile axis are inserted into respectively in the through hole of entrance point connecting plate and outlet end connecting plate; One end of each strut all is packed on the connecting plate, and the other end is installed on the valve interior wall.The tensile axis support of valve body both sides has fixedly played good effect to tensile axis.
The front end of tensile axis and valve block welding install, and the profile of this valve block is cone-shaped.A gear grooved 4 is installed in the rear end of tensile axis, and a position limited gear 3 is installed in engagement on this gear grooved, and this position limited gear is connected with an electric actuator 1 by counter 2, and this electric actuator is installed on the outer wall of valve body.Valve body entrance point to the valve block internal diameter at position limited gear place diminishes gradually, the section area that is valve inner diminishes gradually, therefore electric actuator is done by drive tensile axis control valve block and is opened or closed action, and the realization valve block is opened the control of area, thereby reaches the constant effect of air quantity that keeps.
Working principle of the present utility model is
Valve regulates to keep fixing air quantity according to the variation of static pressure.And this product makes air mass flow all remain on setting value according to the area of opening that system pressure is adjusted cone-shaped valve block at any time always.As: when static pressure hanged down, the power that is added on the valve block was less, and valve block is opened area and increased.Low-pressure and the big area of opening have kept the constant set flow.When same pressure is big, opens area and reduce.Bigger pressure and the little area of opening have kept the constant set flow.
Claims (4)
1. multi-functional fixed, variable air flow airtight valve, comprise valve body and valve block, it is characterized in that: by the tensile axis support tensile axis is installed in the valve body, front end and the valve block of this tensile axis install, a gear grooved is installed in the rear end of tensile axis, a position limited gear is installed in engagement on this gear grooved, and this position limited gear is connected with an electric actuator by counter, and this electric actuator is installed on the outer wall of valve body.
2. multi-functional fixed, variable air flow airtight valve according to claim 1, it is characterized in that: described valve body is the stainless steel body by the seamless welding production of stainless steel plate integral.
3. multi-functional fixed, variable air flow airtight valve according to claim 1, it is characterized in that: valve body entrance point to the valve block internal diameter at position limited gear place diminishes gradually.
4. multi-functional fixed, variable air flow airtight valve according to claim 1, it is characterized in that: the entrance point of described valve body and outlet end are all installed a tensile axis support, each tensile axis support constitutes by connecting plate and a plurality of strut, a through hole is made in the axle center of connecting plate, and the two ends of tensile axis are inserted into respectively in the through hole of entrance point connecting plate and outlet end connecting plate; One end of each strut all is packed on the connecting plate, and the other end is installed on the valve interior wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220748435 CN203051785U (en) | 2012-12-31 | 2012-12-31 | Multifunctional constant air volume and variable air volume seal valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220748435 CN203051785U (en) | 2012-12-31 | 2012-12-31 | Multifunctional constant air volume and variable air volume seal valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203051785U true CN203051785U (en) | 2013-07-10 |
Family
ID=48734739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220748435 Expired - Fee Related CN203051785U (en) | 2012-12-31 | 2012-12-31 | Multifunctional constant air volume and variable air volume seal valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203051785U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105257830A (en) * | 2015-10-21 | 2016-01-20 | 广东科艺普实验室设备研制有限公司 | Air volume adjusting valve with novel structure |
| CN107489777A (en) * | 2017-08-28 | 2017-12-19 | 珠海格力电器股份有限公司 | Air volume adjusting valve for air duct, variable air volume terminal and air conditioning system |
| CN108426088A (en) * | 2018-03-08 | 2018-08-21 | 禹伟 | A kind of exhaust emission pipe for petroleum refining |
-
2012
- 2012-12-31 CN CN 201220748435 patent/CN203051785U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105257830A (en) * | 2015-10-21 | 2016-01-20 | 广东科艺普实验室设备研制有限公司 | Air volume adjusting valve with novel structure |
| CN107489777A (en) * | 2017-08-28 | 2017-12-19 | 珠海格力电器股份有限公司 | Air volume adjusting valve for air duct, variable air volume terminal and air conditioning system |
| CN107489777B (en) * | 2017-08-28 | 2023-10-27 | 珠海格力电器股份有限公司 | Air quantity regulating valve for air duct, variable air quantity tail end and air conditioning system |
| CN108426088A (en) * | 2018-03-08 | 2018-08-21 | 禹伟 | A kind of exhaust emission pipe for petroleum refining |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130710 Termination date: 20161231 |