CN112901836A - Residual pressure valve adopting movable valve plate and preparation method - Google Patents
Residual pressure valve adopting movable valve plate and preparation method Download PDFInfo
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- CN112901836A CN112901836A CN202011599704.7A CN202011599704A CN112901836A CN 112901836 A CN112901836 A CN 112901836A CN 202011599704 A CN202011599704 A CN 202011599704A CN 112901836 A CN112901836 A CN 112901836A
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- residual pressure
- valve plate
- pressure valve
- movable valve
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
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Abstract
The invention belongs to the technical field of air ventilation equipment, and particularly relates to a residual pressure valve adopting a movable valve plate and a preparation method thereof. The residual pressure valve comprises a top plate, a side plate, an adjusting spring, an adjusting bolt, a screw rod, a movable valve plate and an access door; the top plate and the side plates form a main structure frame of the residual pressure valve, and the movable valve plate is suspended below the top plate through a screw, an adjusting spring and an adjusting bolt. This residual pressure valve plate's opening angle receives the restriction when reaching a definite value, through the screw rod, adjusting bolt, adjusting spring connects valve plate and roof, rotatory adjusting bolt makes the spring produce elastic deformation and forms the spring force, and then the angle that the control activity valve plate was opened, this residual pressure valve self-closing is good, can overcome and mention the problem that current residual pressure valve exists among the background art, and this residual pressure valve still has simple structure, the equipment is implemented conveniently, advantage with low costs, can practice thrift the building space.
Description
Technical Field
The invention belongs to the technical field of air ventilation equipment, and relates to a residual pressure valve applicable to spaces with limited installation conditions, such as a closed staircase, a smoke-proof staircase, a front room and the like, in particular to a residual pressure valve adopting a movable valve plate and a preparation method thereof.
Background
A residual pressure valve for a closed staircase, a smoke-proof staircase and a front room is constructed according to the interiors of the staircase and the front room and requires a certain positive pressure to the outside. When the internal pressure of the staircase room and the front room reaches a certain value, the residual pressure valve can be automatically opened under the action of pressure difference so as to adjust the pressure of the staircase room and the front room and meet the requirement of the pressure difference. The existing residual pressure valve is usually provided with a square hole at a proper position on a partition wall between a staircase and a front chamber, a partition wall between the front chamber and an inner walkway, and a partition wall between the staircase and the inner walkway, and is arranged at the side of the square hole on the wall. The existing residual pressure valve in actual construction has the following problems:
1) the internal walkways ceiling height is lower, and the residual pressure valve is installed below the ceiling, and when the accident ventilation, the residual pressure valve is opened, and the interfering personnel are evacuated.
2) When the residual pressure valve is installed above the suspended ceiling of the inner walkway, the interference residual pressure valve is opened by professional pipelines such as weak current, ventilation air conditioners, water supply and drainage, power lighting and the like arranged above the inner walkway.
Disclosure of Invention
The invention aims to provide a residual pressure valve adopting a movable valve plate, aiming at the problem that the installation of a conventional residual pressure valve in some special spaces is difficult to realize in engineering practice. The opening angle of valve plate receives the restriction when reaching a definite value in this excess pressure valve, through adjusting bolt, screw rod, adjusting spring with valve plate and roof connection, rotatory adjusting bolt makes the spring produce elastic deformation and forms the spring force, and then the angle that the control activity valve plate was opened, self-closing nature is good, can overcome and mention the problem that current excess pressure valve exists among the background art to this excess pressure valve still has simple structure, the equipment is implemented conveniently, advantage with low costs, can practice thrift building space.
It is another object of the present invention to provide a method for preparing the above-described residual pressure valve.
In order to achieve the above purpose, the technical scheme of the invention is as follows:
a residual pressure valve adopting a movable valve plate comprises a main body, a valve seat and a valve seat, wherein the main body of the residual pressure valve comprises a top plate, a side plate, an adjusting spring and the movable valve plate; the top plate and the side plates form a main structure frame of the residual pressure valve, and the movable valve plate is suspended below the top plate through a screw, an adjusting spring and an adjusting bolt.
As a better implementation mode in the application, a round hole is formed in the center of the movable valve plate, and a screw rod penetrates through the round hole.
As a better embodiment in the application, the adjusting bolt is installed on the screw rod and is respectively positioned on the upper side and the lower side of the movable valve plate; the adjusting bolt is adjusted to enable the adjusting spring to deform, and then the spring force is generated to control the opening angle of the movable valve plate.
As a better embodiment in the present application, the adjusting spring is located between the upper end adjusting bolt and the movable valve plate; the upper end of the adjusting spring is in a movable state, and the lower end of the adjusting spring is welded with the movable valve plate.
As a better implementation mode in this application, this residual pressure valve still includes the access door, the access door is located curb plate department.
As a better implementation mode in this application, do size adjustment to the residual pressure valve inner structure according to the difference of pressure release amount of wind, satisfy different user demands.
As a better implementation mode in the application, the preparation method of the residual pressure valve adopting the movable valve plate comprises the following steps
1) Determining the structural sizes of a residual pressure valve main body and each part according to the pressure relief air volume;
2) and rotating the adjusting bolt according to the pressure difference required by the installation environment, and controlling the opening of the valve plate to meet the requirement of the pressure difference.
The main scheme and the further selection schemes can be freely combined to form a plurality of schemes which are all adopted and claimed by the invention; in the invention, the selection (each non-conflict selection) and other selections can be freely combined. The skilled person in the art can understand that there are many combinations, which are all the technical solutions to be protected by the present invention, according to the prior art and the common general knowledge after understanding the scheme of the present invention, and the technical solutions are not exhaustive herein.
Compared with the prior art, the invention has the beneficial effects that:
the movable valve plate is connected by the screw and the adjusting bolt, so that the structure is simple, the assembly is convenient, the requirements on knowledge and experience of installation personnel are low, and the reliability is high.
And the movable valve plate moves in the vertical direction and is less limited by the installation space in the horizontal direction, so that the condition that the valve plate works due to the low space at the lower part of the suspended ceiling, various pipelines at the upper part of the suspended ceiling and other factors can be effectively avoided, and the movable valve plate has extremely high use value.
And the whole device has simple structure and reliable work, is favorable for further popularization of products, and is particularly suitable for building places with short space, such as subway stations and the like.
Description of the drawings:
fig. 1 is a schematic front view of a residual pressure valve using a movable valve plate according to the present invention.
Fig. 2 is a schematic diagram of a right-side view structure of the residual pressure valve using the movable valve plate according to the present invention.
FIG. 3 is a schematic left-side view of the residual pressure valve with a movable valve plate according to the present invention
Wherein, 1-top plate, 2-side plate, 3-adjusting bolt, 4-adjusting spring, 5-screw, 6-movable valve plate, 7-access door.
Detailed Description
A residual pressure valve adopting a movable valve plate and a preparation method thereof comprise a side plate, a top plate, a screw rod, an adjusting spring, an adjusting bolt, the movable valve plate and an access door. The side plate and the top plate form a residual pressure valve structure frame, the movable valve plate is suspended below the top plate through a screw rod, an adjusting spring and an adjusting bolt, the deformation of the adjusting spring is changed through adjusting the adjusting bolt, further, a spring force is generated to control the opening angle of the movable valve plate, and a circular hole is formed in the center of the movable valve plate for the screw rod to pass through; the adjusting bolts are arranged on the screw rods and are positioned on the upper side and the lower side of the movable valve plate; the adjusting spring is positioned between the adjusting bolt at the upper end and the movable valve plate, the upper end of the adjusting spring is in a movable state, and the lower end of the adjusting spring is welded with the movable valve plate; the access door is located on the side plate.
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict.
It should be noted that, in order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, it should be noted that, in the present invention, if the specific structures, connection relationships, position relationships, power source relationships, and the like are not written in particular, the structures, connection relationships, position relationships, power source relationships, and the like related to the present invention can be known by those skilled in the art without creative work on the basis of the prior art.
Example 1:
as shown in fig. 1, 2 and 3, the residual pressure valve using the movable valve plate comprises a top plate 1, a side plate 2, an adjusting bolt 3, an adjusting spring 4, a screw rod 5, a movable valve plate 6 and an access door 7.
The top plate 1 and the side plate 2 form a residual pressure valve structure frame, the movable valve plate 6 is suspended on the top plate 1 through a screw rod 5, an adjusting bolt 3 and an adjusting spring 4, the adjusting bolt 3 is adjusted to change the deformation of the adjusting spring 4, a spring force is generated to control the opening angle of the movable valve plate 6, and a round hole is formed in the center of the movable valve plate 6 for the screw rod 5 to pass through; the adjusting bolt 3 is arranged on the screw rod 5 and is positioned on the upper side and the lower side of the movable valve plate 6; the adjusting spring 4 is positioned between the adjusting bolt 3 at the upper end and the movable valve plate 6, the upper end of the adjusting spring 4 is in a movable state, and the lower end of the adjusting spring is welded with the movable valve plate 6; the access door 7 is located at the side panel.
The residual pressure valve with the movable valve plate has various size selections according to different pressure relief air quantities, and can meet different use requirements.
1) Determining the structural sizes of a residual pressure valve main body and each part according to the pressure relief air volume;
2) and rotating the adjusting bolt according to the pressure difference required by the installation environment, and controlling the opening of the valve plate to meet the requirement of the pressure difference.
The following example is given by the calculation of the pressurized air supply of the underground smoke-proof stairwell of a certain subway station:
it is known that a smoke-proof stairwell has an independent front room in the underground floor and only one door is communicated with an inner walkway, and only a pressurized air supply system is required to be arranged in the stairwell. The door types from the staircase room to the front room and from the front room to the inner walkway are FYM12 multiplied by 21, the section wind speed of the door opening is 1m/s, and the number N of the floors of the evacuation door is designed11, calculating the average pressure difference delta P of the air leakage quantity to 12Pa and the number N of the air leakage evacuation doors 21 is taken out, and the required air supply quantity L is calculated1＝2.52m3/s，L2＝0.1143m3/s, mechanical pressurized air supply L for stairwellj＝2.634m3S, about 9484m m3The model selection air volume of the pressurizing blower is 11820m m3/s。
In the formula: l isyThe amount of air (m) required to maintain a certain positive pressure at the pressurized area3/h)；
ATotal effective air leakage area (m) of door and window gap2)；
Δ P-pressure difference (Pa);
n-index (generally, n is 2);
1.25-additional coefficients where not exact;
0.827-air leakage coefficient.
The types of common staircase pressurizing and air supplying systems in subway engineering are as follows: the independent front rooms do not supply air, only mechanical pressurized air supply is arranged in the smoke-proof staircases, and pressurized air supply is arranged in the closed staircases. The area of the residual pressure valve of the pressurized air supply system of the smoke-proof stairwell of the underground layer is calculated and exemplified below.
The pressure difference between the staircase and the inner walkway is calculated according to 50Pa, and the air quantity required for keeping the pressure difference is as follows:
has found Ly＝11820m3And h, the sectional area F of the residual pressure valve is as follows:
the sectional area F of residual pressure valve set in the adjacent partition between the staircase and the front chamber is 0.4822m2Selecting a residual pressure valve with the cross section size of 800mm multiplied by 630 mm; pressure and air volume L discharged from staircase to front roomx＝11125m3/h。
The pressure difference between the front chamber and the inner walkway is calculated according to 25Pa, and according to the formula (6) and the formula (7), the air quantity required for keeping the pressure difference is as follows:
the pressure and air volume L of the staircase to the front room is obtainedx＝11125m3And h, the air quantity is larger than that of the front chamber for maintaining the pressure difference, and the section size F of a residual pressure valve is required to be arranged on a partition wall between the front chamber and the inner walkway:
the section area F of the residual pressure valve arranged on the partition wall between the front chamber and the inner walkway is 0.46m2The residual pressure valve with the cross section size of 800mm multiplied by 630mm is selected.
Therefore, the residual pressure valve structure is designed to have the size (L multiplied by W multiplied by H): 900X 730 mm; the size of the valve plate is 850 multiplied by 680 mm; selecting an M10 screw rod with the length of 650 mm; selecting a spiral spring with the inner diameter of 12.5mm and the length of 500 mm; m10 bolts (2) were used.
Although the present invention has been described in detail with respect to specific embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the invention encompassed by the appended claims.
Claims (7)
1. The utility model provides an adopt surplus pressure valve of activity valve plate which characterized in that: the residual pressure valve main body comprises a top plate (1), a side plate (2), an adjusting bolt (3), an adjusting spring (4), a screw rod (5) and a movable valve plate (6); roof (1) and curb plate (2) constitute the major structure frame of residual pressure valve, movable valve plate (6) are suspended in midair in the below of roof (1) through screw rod (5), adjusting spring (4) and adjusting bolt (3).
2. A residual pressure valve using a movable valve plate according to claim 1, wherein: the center of the movable valve plate (6) is provided with a round hole for the screw rod (5) to pass through.
3. A residual pressure valve using a movable valve plate according to claim 1, wherein: the adjusting bolt (3) is arranged on the screw rod (5) and is respectively positioned on the upper side and the lower side of the movable valve plate (6); the adjusting bolt (3) is adjusted to enable the adjusting spring (4) to deform, and then the spring force is generated to control the opening angle of the movable valve plate (6).
4. A residual pressure valve using a movable valve plate according to claim 1, wherein: the adjusting spring (4) is positioned between the upper end adjusting bolt (3) and the movable valve plate (6); the upper end of the adjusting spring (4) is in a movable state, and the lower end of the adjusting spring is welded with the movable valve plate (6).
5. A residual pressure valve using a movable valve plate according to claim 1, wherein: the residual pressure valve further comprises an access door (7) which is positioned at the side plate (2).
6. A residual pressure valve using a movable valve plate according to claim 1, wherein: the size of the internal structure of the residual pressure valve is adjusted according to the different pressure relief air quantities, so that different use requirements are met.
7. A method for manufacturing a residual pressure valve using a movable valve plate according to any one of claims 1 to 6, comprising the steps of:
1) determining the structural size of the residual pressure valve according to the pressure relief air volume, and further determining the length of the screw, the length of the adjusting spring and the area size of the valve plate;
2) and rotating the adjusting bolt according to the pressure difference required by the installation environment, and controlling the opening of the valve plate to meet the requirement of the pressure difference.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011599704.7A CN112901836A (en) | 2020-12-29 | 2020-12-29 | Residual pressure valve adopting movable valve plate and preparation method |
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| CN202011599704.7A CN112901836A (en) | 2020-12-29 | 2020-12-29 | Residual pressure valve adopting movable valve plate and preparation method |
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| CN112901836A true CN112901836A (en) | 2021-06-04 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115773394A (en) * | 2023-02-13 | 2023-03-10 | 通威微电子有限公司 | Residual pressure valve and air conditioning chamber |
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| JPS60245883A (en) * | 1984-05-16 | 1985-12-05 | Okamoto Kk | Safety valve |
| CN101943283A (en) * | 2010-09-13 | 2011-01-12 | 上海远安流体设备有限公司 | Dual-use vacuum relief valve |
| EP2681473A1 (en) * | 2011-02-28 | 2014-01-08 | Alligator Ventilfabrik GmbH | Residual pressure valve |
| CN203948727U (en) * | 2014-07-22 | 2014-11-19 | 石家庄石脉阀门制造有限公司 | Low-voltage safety diffusion valve |
| CN210440633U (en) * | 2019-07-23 | 2020-05-01 | 上海凌耀船舶工程有限公司 | Micro-differential pressure control valve |
| CN210770476U (en) * | 2019-09-15 | 2020-06-16 | 重庆长厦安基建筑设计有限公司 | Integrative residual pressure valve of formula is inhaled to fire prevention magnetism |
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2020
- 2020-12-29 CN CN202011599704.7A patent/CN112901836A/en active Pending
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| JPS60245883A (en) * | 1984-05-16 | 1985-12-05 | Okamoto Kk | Safety valve |
| CN101943283A (en) * | 2010-09-13 | 2011-01-12 | 上海远安流体设备有限公司 | Dual-use vacuum relief valve |
| EP2681473A1 (en) * | 2011-02-28 | 2014-01-08 | Alligator Ventilfabrik GmbH | Residual pressure valve |
| CN203948727U (en) * | 2014-07-22 | 2014-11-19 | 石家庄石脉阀门制造有限公司 | Low-voltage safety diffusion valve |
| CN210440633U (en) * | 2019-07-23 | 2020-05-01 | 上海凌耀船舶工程有限公司 | Micro-differential pressure control valve |
| CN210770476U (en) * | 2019-09-15 | 2020-06-16 | 重庆长厦安基建筑设计有限公司 | Integrative residual pressure valve of formula is inhaled to fire prevention magnetism |
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| 冯玉琪等: "《新型空调制冷设备及配件选用手册》", vol. 1, 31 March 1999, 人民邮电出版社, pages: 892 - 894 * |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115773394A (en) * | 2023-02-13 | 2023-03-10 | 通威微电子有限公司 | Residual pressure valve and air conditioning chamber |
| CN115773394B (en) * | 2023-02-13 | 2023-05-02 | 通威微电子有限公司 | Residual pressure valve and air conditioning chamber |
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Application publication date: 20210604 |