CN211011813U - Air valve for air conditioning air system of textile mill - Google Patents
Air valve for air conditioning air system of textile mill Download PDFInfo
- Publication number
- CN211011813U CN211011813U CN201922141596.8U CN201922141596U CN211011813U CN 211011813 U CN211011813 U CN 211011813U CN 201922141596 U CN201922141596 U CN 201922141596U CN 211011813 U CN211011813 U CN 211011813U
- Authority
- CN
- China
- Prior art keywords
- air
- valve
- section
- conical
- textile mill
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Air-Flow Control Members (AREA)
Abstract
An air valve for an air conditioning air system of a textile mill comprises a valve body, a valve core and a valve rod; the valve body sequentially comprises an inlet cylindrical section, a conical contraction section, a cylindrical throat part, a conical diffusion section and an outlet cylindrical section from left to right; the initial position of the valve core is positioned between the inlet cylindrical section and the conical contraction section and is horizontally arranged in the valve body through the valve rod, and a telescopic spring is installed in the valve core. A blast gate for textile mill air conditioning air system, horizontal installation is in tuber pipe system, moves mechanical mechanism, need not external power, simple structure, it is high to have amount of wind control precision, response time is short, adjustable ratio is big, can realize the advantage that the irrelevant type of pressure was adjusted in great pressure range, long service life, application prospect is extensive.
Description
Technical Field
The utility model relates to an air valve technical field, concretely relates to air valve for textile mill air conditioner air system.
Background
With the development of science and technology and the continuous progress of society, the importance of the indoor environment control problem is increasingly shown due to the requirements of production technology, scientific research, science and education and sanitation and the like, and the requirement on an air conditioning system is higher and higher. In order to control the pollutants in the factory building and ensure the requirements of cleanliness, temperature and humidity, pressure gradient and the like in the production process, the textile mill needs to strictly control the filtration efficiency of the air filter and the air treatment process, and also needs to ensure that the air supply and exhaust volume sent to each controlled space is not interfered by other factors in the system so as to keep the stability of the pressure difference between the controlled environment and the outside. In addition, in the operation process of the air conditioning system in the textile mill, the resistance of the filter is continuously increased, the working efficiency of equipment such as an air feeder and an exhaust fan is continuously changed, the nonstandard manual operation in the operation process of the system and the like can influence the air output and the pressure difference of a factory building. Therefore, how to keep the air volume of the air conditioning system of the textile mill free from interference of other factors in the system becomes an important problem.
Generally, in order to adjust the air volume of an air conditioning system, the air volume of the air conditioning system is often adjusted by adopting an electric multi-blade adjusting valve, a manual multi-blade adjusting valve, a fan frequency control and speed regulation, and the like. In the air quantity adjusting methods, the electric multi-blade adjusting valve is mostly designed in a main air pipe of the air conditioner and is matched with an automatic control system, so that the total air quantity of the system can be adjusted. For example, when the air volume of one branch is changed, the air volume of all branches is influenced, so that the stability of the system is difficult to ensure from the viewpoint of automatic control; manual multi-blade regulating valve main body
The air quantity adjustment during the initial adjustment of the system needs to be realized, and the adjustment process is relatively long, and if the air quantity of the system changes, a long-time adjustment process is needed again. Although the variable-frequency speed regulation of the fan can continuously and automatically regulate the air quantity of the system, the variable-frequency speed regulation of the fan is realized by regulating the operating frequency of a circulating fan motor of an air conditioner, is only suitable for regulating the total air quantity of the system, and is difficult to realize the regulation of the air quantity of each branch air pipe.
Therefore, the air volume balance problem in the air-conditioning air system of the textile mill has a great effect in keeping the controlled environment to be controlled all the time, and in addition to the problems existing in the traditional adjusting device and debugging method, an air valve for the air-conditioning air system of the textile mill, which has the advantages of accuracy, adjustability, automatic balance function, stable performance and low cost, is urgently needed.
Chinese patent application No. CN201510373616.8 discloses an air valve adjusting method and system for controlling air volume, which predict and control the opening degree of an air valve through an external resistance characteristic curve cluster of the air valve to achieve a high control speed without improving the structure of the air valve.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: in order to overcome not enough above, the utility model aims at providing an air valve for textile mill air conditioner air system has amount of wind control precision height, and response time is short, and is adjustable than big, can realize the advantage that the irrelevant type of pressure was adjusted in great pressure range, and application prospect is extensive.
The technical scheme is as follows: an air valve for an air conditioning air system of a textile mill comprises a valve body, a valve core and a valve rod; the valve body sequentially comprises an inlet cylindrical section, a conical contraction section, a cylindrical throat part, a conical diffusion section and an outlet cylindrical section from left to right; the initial position of the valve core is positioned between the inlet cylindrical section and the conical contraction section and is horizontally arranged in the valve body through the valve rod, and a telescopic spring is installed in the valve core.
A blast gate for textile mill air conditioning air system, horizontal installation is in tuber pipe system, moves mechanical mechanism, need not external power, simple structure, it is high to have amount of wind control precision, response time is short, and is adjustable than big, can realize the advantage that the irrelevant type of pressure was adjusted in great pressure range.
The working principle is as follows: when air flows through the valve core, certain flow-around resistance is generated, namely the acting force of the air on the valve core, meanwhile, the spring of the valve core also generates acting force on the valve core, and when the valve core is stable, the magnitude of the acting force of the air flow and the acting force of the spring in the horizontal direction are equal, the direction is opposite, and the position of the valve core is unchanged. When the static pressure in the air pipe changes, the acting force of air on the valve core also changes, and the force applied to the valve core in the horizontal direction is not balanced. Under the combined action of air and spring, the position of valve core is moved to reach new balance position. The flow area of the air is changed along with the movement of the valve core, so that the air flow passing through the valve body is ensured to be unchanged. The valve body is sequentially arranged into an inlet cylinder section, a conical contraction section, a cylindrical throat part, a conical diffusion section and an outlet cylinder section from left to right, so that the minimum working pressure can be reduced, and the lower working static pressure means that the fan only needs to provide lower power, thereby having important significance for the energy conservation of the system.
Further, according to the air valve for the air conditioning system of the textile mill, the diameter of the inlet cylindrical section and the diameter of the inlet cylindrical section are 220mm, and the length of the inlet cylindrical section and the length of the outlet cylindrical section are 110 mm.
In order to improve the accuracy of flow control, the inlet cylinder section, the molded lines and the flow cross section of the inlet cylinder section are improved, so that the air inlet amount and the air outlet amount are more stable.
Further, according to the air valve for the air conditioning system of the textile mill, the included angle of the conical diffusion section is 15 degrees, and the included angle of the conical diffusion section is 21 degrees.
In order to improve the accuracy of flow control, the conical diffusion section, the molded line of the conical diffusion section and the flow section are improved, and the flow error is reduced.
Further, the air valve for the air conditioning system of the textile mill has the advantages that the diameter of the cylindrical throat part is 150mm, and the length of the cylindrical throat part is 150 mm.
In order to improve the accuracy of flow control, the molded line and the flow cross section of the cylindrical throat part are perfected and improved, the flow error is reduced, and the flow is kept relatively constant.
Further, according to the air valve for the air conditioning system of the textile mill, the windward surface of the valve core is a part of a spherical surface, the radius of the spherical surface is 110mm, the leeward surface of the valve core is a conical surface, and the vertex angle of the conical surface is 90 degrees; the diameter of the circular surface of the intersection of the spherical surface and the conical surface is 150 mm.
Due to the structural design of the valve core, the resistance of the valve core is reduced, and the resistance of the tail end is reduced.
Further, the spring is a cylindrical spring with equal pitch for the air valve for the air conditioning system of the textile mill.
Further, the valve body of the air valve for the air conditioning system of the textile mill is provided with the TX silencer.
In order to reduce the radiation noise, a TX muffler is mounted on the valve body.
The utility model has the advantages that: the air valve for the air conditioning system of the textile mill is a mechanical mechanism, has simple structure, good quality and low cost, does not need external power and saves energy; the air valve is horizontally arranged in the air pipe system, and has the advantages of high air quantity control precision, short response time, large adjustable ratio and capability of realizing pressure-independent adjustment in a large pressure range; the valve body is sequentially arranged into an inlet cylinder section, a conical contraction section, a cylindrical throat part, a conical diffusion section and an outlet cylinder section from left to right, so that the minimum working pressure can be reduced, and the lower working static pressure means that the fan only needs to provide lower power, thereby having important significance for the energy conservation of the system; the molded lines and the flow cross sections of the inlet cylinder section, the conical diffusion section and the cylindrical throat part are improved, so that the air inlet amount and the air outlet amount are more stable, and the flow error is reduced; in order to reduce the radiation noise, a TX muffler is mounted on the valve body.
Drawings
Fig. 1 is a schematic structural diagram of an air valve for an air conditioning system of a textile mill according to the present invention;
in the figure, a valve body 1, an inlet cylindrical section 11, a conical contraction section 12, a cylindrical throat 13, a conical diffusion section 14, an outlet cylindrical section 15, a TX silencer 16, a valve core 2, a spring 21, a valve rod 3, the diameters D of the inlet cylindrical section and the inlet cylindrical section, the lengths L of the inlet cylindrical section and the inlet cylindrical section, an included angle α of the conical diffusion section, an included angle β of the conical diffusion section, a vertex angle gamma of a conical surface, the diameter D of the cylindrical throat and the length l of the cylindrical throat are arranged in the valve body.
Detailed Description
The invention will be further elucidated with reference to fig. 1 and an exemplary embodiment.
The air valve for the air conditioning air system of the textile mill with the structure shown in figure 1 comprises a valve body 1, a valve core 2 and a valve rod 3; the valve body 1 sequentially comprises an inlet cylindrical section 11, a conical contraction section 12, a cylindrical throat 13, a conical diffusion section 14 and an outlet cylindrical section 15 from left to right; the initial position of the valve core 2 is located between the inlet cylindrical section 11 and the conical contraction section 12 and is horizontally arranged in the valve body 1 through the valve rod 3, and a telescopic spring 21 is installed in the valve core 2.
The diameter D of the inlet cylindrical segments 11 and 15 is 220mm, and the length L of the inlet cylindrical segments 11 and 15 is 110 mm.
In addition, the included angle α of the conical divergent section 14 is 15 °, and the included angle β of the conical divergent section 14 is 21 °.
Further, the diameter of the cylindrical throat portion 13 is 150mm, and the length of the cylindrical throat portion 13 is 150 mm.
In addition, the windward side of the valve core 2 is a part of a spherical surface, the radius of the spherical surface is 110mm, the leeward side of the valve core 2 is a conical surface, and the vertex angle of the conical surface is 90 degrees; the diameter of the circular surface of the intersection of the spherical surface and the conical surface is 150 mm.
Further, the spring 21 is a cylindrical equidistant spring.
Further, a TX muffler 16 is mounted on the valve body 1.
Examples
Based on the above structural basis, as shown in fig. 1.
A blast gate for textile mill air conditioning air system, horizontal installation is in tuber pipe system, moves mechanical mechanism, need not external power, simple structure, it is high to have amount of wind control precision, response time is short, and is adjustable than big, can realize the advantage that the irrelevant type of pressure was adjusted in great pressure range.
The working principle is as follows: when air flows through the valve core 2, certain bypass resistance, namely acting force of the air on the valve core 2, and simultaneously, the spring 21 of the valve core 2 also generates acting force on the valve core 2, and the valve core 2 is stable, the air flow received in the horizontal direction is equal in magnitude and opposite in direction to the acting force of the spring 21, and the position of the valve core 2 is unchanged. When the static pressure in the air pipe changes, the acting force of the air on the valve core 2 changes, and the force applied to the valve core 2 in the horizontal direction is not balanced. Under the combined action of the air and the spring 21, the position of the spool 2 is displaced, so that a new equilibrium position is reached. The air flow area is changed along with the movement of the valve core 2, and the air flow passing through the valve body 1 is ensured to be constant. The valve body 1 is sequentially arranged into the inlet cylindrical section 11, the conical contraction section 12, the cylindrical throat 13, the conical diffusion section 14 and the outlet cylindrical section 15 from left to right, so that the minimum working pressure can be reduced, and the smaller working static pressure means that the fan only needs to provide smaller power, thereby having great significance for the energy conservation of the system.
In order to improve the accuracy of flow control, the molded lines and the flow cross sections of the inlet cylindrical section 11, the conical contraction section 12, the cylindrical throat 13, the conical diffusion section 14 and the outlet cylindrical section 15 are improved, so that the air inlet amount and the air outlet amount are more stable, and the flow error is reduced.
The valve core 2 is structurally designed, so that the resistance of the valve core 2 is reduced, and the resistance of the tail end is reduced.
Also, in order to reduce radiation noise, a TX muffler 16 is mounted on the valve body.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the details of the above embodiments, and the technical concept of the present invention can be within the scope of the present invention to perform various simple modifications to the technical solution of the present invention, and these simple modifications all belong to the protection scope of the present invention.
It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and in order to avoid unnecessary repetition, the present invention does not need to describe any combination of the features.
In addition, the embodiments of the present invention can be arbitrarily combined with each other, and the same shall be regarded as the disclosure of the present invention as long as the idea of the present invention is not violated.
Claims (7)
1. An air valve for an air conditioning air system of a textile mill is characterized by comprising a valve body (1), a valve core (2) and a valve rod (3); the valve body (1) sequentially comprises an inlet cylindrical section (11), a conical contraction section (12), a cylindrical throat (13), a conical diffusion section (14) and an outlet cylindrical section (15) from left to right; the initial position of the valve core (2) is positioned between the inlet cylindrical section (11) and the conical contraction section (12) and is horizontally arranged in the valve body (1) through the valve rod (3), and a telescopic spring (21) is installed in the valve core (2).
2. Air valve for air conditioning air system of textile mill according to claim 1, characterized in that the diameter of the inlet (11) and outlet (15) cylindrical sections is 220mm and the length of the inlet (11) and outlet (15) cylindrical sections is 110 mm.
3. Air valve for an air conditioning air system of a textile mill according to claim 2, characterized in that the angle of the conical diffuser section (14) is 15 ° and the angle of the conical diffuser section (14) is 21 °.
4. Air valve for an air conditioning system of textile mill according to claim 3, characterized in that the diameter of said cylindrical throat (13) is 150mm and the length of said cylindrical throat (13) is 150 mm.
5. The air valve for the air conditioning air system of the textile mill according to claim 1, characterized in that the windward side of the valve core (2) is a part of a spherical surface, the radius of the spherical surface is 110mm, the leeward side of the valve core (2) is a conical surface, and the apex angle of the conical surface is 90 °; the diameter of the circular surface of the intersection of the spherical surface and the conical surface is 150 mm.
6. Air valve for air conditioning system of textile mill according to claim 1, characterized in that the spring (21) is a cylindrical equidistant spring.
7. Air valve for textile mill air conditioning system according to claim 1, characterized in that a TX muffler (16) is mounted on the valve body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922141596.8U CN211011813U (en) | 2019-12-04 | 2019-12-04 | Air valve for air conditioning air system of textile mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922141596.8U CN211011813U (en) | 2019-12-04 | 2019-12-04 | Air valve for air conditioning air system of textile mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211011813U true CN211011813U (en) | 2020-07-14 |
Family
ID=71476031
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922141596.8U Expired - Fee Related CN211011813U (en) | 2019-12-04 | 2019-12-04 | Air valve for air conditioning air system of textile mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211011813U (en) |
-
2019
- 2019-12-04 CN CN201922141596.8U patent/CN211011813U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203083071U (en) | Flow-equalizing air supply pipeline | |
| CN205372921U (en) | Adaptive variable blast volume air conditioner air supply fan speed controller | |
| CN101008519A (en) | Variable static pressure control method and system for variable air-conditioning system | |
| CN203310050U (en) | Variable air volume dew-point controlled air conditioning system | |
| CN108731210B (en) | Full-range high-precision air quantity adjusting device | |
| CN105067220A (en) | Mine ventilation network system experimental device and method | |
| CN105674412A (en) | Household air conditioner capable of automatically adjusting fresh air volume | |
| CN203100108U (en) | Air system device easy to adjust and even in air distribution | |
| CN111397035B (en) | Air conditioning system for textile mill and working method thereof | |
| CN211011813U (en) | Air valve for air conditioning air system of textile mill | |
| CN105757890A (en) | Control method of cooling air quantity of outdoor condenser | |
| CN204512014U (en) | A kind of nozzle-adjustable steam ejector | |
| CN107489777A (en) | Air volume adjusting valve for air duct, variable air volume terminal and air conditioning system | |
| CN204214104U (en) | A kind of air channel air-supply uniform device | |
| CN207089622U (en) | Variable air volume end device and air conditioning system | |
| CN106839292B (en) | Intelligent biological safety laboratory system and control method thereof | |
| CN205208822U (en) | Humidity control device in wire drawing district in glass fiber production | |
| CN205403281U (en) | Controlling means of outdoor condenser cooling amount of wind | |
| CN101561171A (en) | System and method for controlling tail end of air-quality-variable central air-conditioner | |
| CN211231756U (en) | Air valve with accurate, adjustable and automatic balancing functions | |
| CN213598690U (en) | Adjustable flow valve | |
| CN204786747U (en) | Circulating fan organizes structure | |
| CN210088983U (en) | Adjustable uniform air supply device | |
| CN220707655U (en) | Air quantity adjusting system and clean room | |
| CN209910035U (en) | Temperature and humidity and pollutant purification control independent extrusion type fan coil system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200714 Termination date: 20201204 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |