CN210378888U - Intelligent wind pressure switch of direct-fired machine - Google Patents
Intelligent wind pressure switch of direct-fired machine Download PDFInfo
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- CN210378888U CN210378888U CN201921765599.2U CN201921765599U CN210378888U CN 210378888 U CN210378888 U CN 210378888U CN 201921765599 U CN201921765599 U CN 201921765599U CN 210378888 U CN210378888 U CN 210378888U
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Abstract
The utility model discloses a direct-fired machine intelligence wind pressure switch, it includes casing, lower casing, its characterized in that goes up the casing and meets with casing down, goes up and is equipped with the diaphragm subassembly between casing and the lower casing, goes up to be equipped with first wind gap on the casing, is equipped with the second wind gap on the casing down, is equipped with pressure sensor down on the casing, and pressure sensor is connected with control system, and control system is connected with the switch, and pressure sensor is connected with the diaphragm subassembly through the elastic component. Go up the casing and divide into two cavitys with lower casing diaphragm assembly, through diaphragm assembly because of the removal that atmospheric pressure change produced, make elastic component compressed or stay cord, alright with the static pressure conversion that produces wind for the pressure that is used in pressure sensor, pressure that receives when pressure sensor reaches certain value alright make the switch action through control system, control system can also be used to according to user's needs, accurate regulating switch triggers the pressure value that needs reach.
Description
Technical Field
The utility model relates to a technical field of wind pressure switch specifically is a direct-fired machine intelligence wind pressure switch.
Background
The gas direct-fired machine adopts the direct combustion of combustible gas to provide refrigeration, heating and sanitary hot water. The direct-fired machine uses natural gas, diesel oil and other fuels as fuel energy sources, and most of the currently widely used direct-fired machines use natural gas as fuel. The wind pressure switch is used as an important safety component in the direct-fired machine equipment, so that the gas channel can be closed timely under the condition of unsmooth air exhaust of the equipment, the condition that heat generated during combustion cannot be transmitted out or gas leaks can be avoided, and the life safety is protected.
The existing method for adjusting the triggering pressure of the wind pressure switch is to change the triggering pressure of the wind pressure switch by different degrees of compression of a spring through an adjusting screw, and the adjustment mode is inconvenient and can not ensure the accuracy of the adjusted parameters.
Disclosure of Invention
The utility model discloses the technical problem that will solve is: the intelligent wind pressure switch of the direct-fired engine is convenient for accurately adjusting the action pressure.
The utility model adopts the technical proposal that: the utility model provides a direct-fired machine intelligence wind pressure switch, it includes casing, lower casing, its characterized in that, go up the casing with the casing meets down, go up the casing with be equipped with diaphragm assembly down between the casing, upward be equipped with first wind gap on the casing, be equipped with the second wind gap on the casing down, be equipped with pressure sensor down on the casing, pressure sensor is connected with control system, control system is connected with the switch, pressure sensor pass through the elastic component with diaphragm assembly is connected.
After the structure more than adopting, the utility model discloses a direct-fired machine intelligence wind pressure switch compares with prior art and has following advantage: go up the casing and be connected between the casing down, a closed cavity has been formed, diaphragm assembly sets up between last casing and lower casing, divide into two with the cavity, two cavities that setting up of first wind gap and second wind gap is can be put through with the trachea that is surveyed, can make the cavity move according to the atmospheric pressure change in the trachea, diaphragm assembly is connected with pressure sensor through the elastic component, can make diaphragm assembly change the static pressure that wind produced into the pressure that is used in pressure sensor through the elastic component when moving because of atmospheric pressure change, pressure that receives when pressure sensor reaches certain value alright make the switch move through control system, control system can also be used for setting for the pressure value that the switch trigger needs to reach according to the user's needs.
Preferably, the diaphragm assembly is divided into an outer diaphragm and an inner diaphragm, the outer diaphragm is connected to the outer side of the inner diaphragm, and the outer diaphragm is made of a flexible material. The outer diaphragm is made of flexible material, so that the diaphragm assembly can move correspondingly when being subjected to positive wind pressure or negative wind pressure.
Preferably, a first boss is arranged on the inner diaphragm, and the elastic piece is sleeved on the first boss. The first boss is used for limiting the position of the elastic part, preventing the elastic part from deviating and better transmitting movement and pressure to the elastic part when the diaphragm assembly moves.
Preferably, a second groove is formed in the lower housing, and the pressure sensor is embedded in the second groove. The second groove limits the pressure sensor, and prevents the pressure sensor from slipping during working.
Preferably, the elastic piece is connected with the pressure sensor through a connecting piece, a second boss is arranged on the connecting piece, the elastic piece is sleeved on the second boss, and the connecting piece is embedded into the second groove. The even transmission of pressure to pressure sensor that the connecting piece received the elastic component has avoided because of the measured data inaccuracy that the pressure uneven distribution leads to, and the second boss can be used for restricting the position of elastic component, and the second recess restricts the position of connecting piece simultaneously, ensures that the elastic component can not the off tracking at the during operation.
Preferably, the outer ring of the outer diaphragm is provided with a first protrusion, the lower shell is provided with a first groove matched with the first protrusion, and the upper shell is provided with a second protrusion. The first arch of step form cooperatees with first recess, and it is spacing through the second arch of last casing, guarantees that the diaphragm subassembly can not take place to drop or leak out.
Preferably, the inner diameter of the upper housing is larger than the outer diameter of the lower housing. The upper shell can wrap the lower shell, and the sealing performance is better.
Preferably, the elastic member is a precision spring. The precision spring can well transfer the pressure applied to the diaphragm assembly to the pressure sensor.
Drawings
Fig. 1 is a schematic view of the sectional structure of the intelligent wind pressure switch of the direct-fired machine of the present invention.
Fig. 2 is a partially enlarged view of the region "a" in fig. 1.
Wherein, 1, an upper shell; 1.1, a first tuyere; 1.2, a second bulge; 2. a lower housing; 2.1, a second tuyere; 2.2, a first groove; 3. a pressure sensor; 4. an elastic member; 5. a connecting member; 5.1, a second boss; 6. an outer membrane; 6.1, a first bulge; 7. an inner membrane; 7.1, a first boss.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the following detailed description.
The utility model provides a direct-fired machine intelligence wind pressure switch, it includes casing 1, casing 2 down, it cooperatees with casing 2 down to go up casing 1, form a cavity, it is equipped with the diaphragm subassembly to go up between casing 1 and the casing 2 down, divide into two with a cavity, it is the positive pressure chamber to go up the cavity between casing 1 and the diaphragm subassembly, cavity between casing 2 and the diaphragm subassembly is the negative pressure chamber down, be equipped with pressure sensor 3 on the casing 2 down, pressure sensor 3 is connected with the diaphragm subassembly through elastic component 4, pressure sensor 3 is connected with control system and switch.
Diaphragm assembly divide into outer diaphragm 6 and interior diaphragm 7, outer diaphragm 6 is made for flexible material, guarantee to drive diaphragm assembly when the wind pressure effect and carry out corresponding removal, interior diaphragm 7 can adopt the light hard material of quality, the quality can not lead to because of the quality is too big to be difficult to the motion by diaphragm assembly light, interior diaphragm 7 middle part is equipped with first boss 7.1, first boss 7.1 is used for spacing the upper end of elastic component 4, guarantee that the upper end of elastic component 4 can not produce the displacement. The outer lane of outer diaphragm 6 is equipped with the first arch 6.1 of step dress, and the first recess 2.2 phase-match that sets up on casing 2 down, and it is spacing through the protruding 1.2 of the second that sets up on last casing 1, guarantees that the diaphragm subassembly can not follow and drop between casing 1 and the casing 2 down.
The elastic piece 4 is connected with the pressure sensor 3 through the connecting piece 5, the lower surface of the connecting piece 5 is a plane and is used for being in contact with the pressure sensor 3, the force transmitted by the elastic piece 4 can be uniformly applied to the pressure sensor 3, and the inaccuracy of measurement data caused by the non-uniform pressure distribution is avoided; the upper surface of the connecting piece 5 is provided with a second boss 5.1, and the second boss 5.1 limits the lower end of the elastic piece 4 to ensure that the lower end of the elastic piece 4 cannot generate displacement; the upper end of the elastic part 4 is limited by the first boss 7.1 arranged on the inner diaphragm 7, so that the upper end of the elastic part 4 cannot generate displacement, and the accuracy of measured data is ensured. Meanwhile, the second groove arranged on the lower shell 2 limits the positions of the pressure sensor 3 and the connecting piece 5, so that the sliding of the pressure sensor during working is avoided, and the deviation of measured data is avoided.
The control system can be connected with a control panel, a screen and keys can be arranged on the control panel, different pressure values for triggering the switch to act can be input according to needs, and the user can conveniently and accurately adjust the pressure values in time.
The working principle is that the cavity is connected with a measured space through the first air port 1.1 or the second air port 2.1, when the air pressure of the measured space changes, the cavity enables the diaphragm assembly to move downwards under the influence of the measured air pressure, so that the elastic piece 4 is compressed, the value detected by the pressure sensor 3 changes, the pressure sensor 3 transmits the detected value to the control system, and when the pressure value set by the control system is reached, the switch triggers to act.
While the above is directed to the preferred embodiment of the present invention, it is not intended that it be limited, except as by the appended claims. The present invention is not limited to the above embodiments, and the specific structure thereof allows for changes, all the changes made within the protection scope of the independent claims of the present invention are within the protection scope of the present invention.
Claims (8)
1. The utility model provides a direct-fired machine intelligence wind pressure switch, it includes casing (1), casing (2) down, a serial communication port, go up casing (1) with casing (2) meet down, go up casing (1) with be equipped with the diaphragm subassembly down between casing (2), upward be equipped with first wind gap (1.1) on casing (1), be equipped with second wind gap (2.1) down on casing (2), be equipped with pressure sensor (3) down on casing (2), pressure sensor (3) are connected with control system, control system is connected with the switch, pressure sensor (3) through elastic component (4) with the diaphragm subassembly is connected.
2. The intelligent wind pressure switch of a direct-fired engine according to claim 1, wherein the diaphragm assembly is divided into an outer diaphragm (6) and an inner diaphragm (7), the outer diaphragm (6) is connected to the outer side of the inner diaphragm (7), and the outer diaphragm (6) is made of flexible material.
3. The intelligent wind pressure switch of a direct-fired machine according to claim 2, wherein the inner diaphragm (7) is provided with a first boss (7.1), and the elastic member (4) is sleeved on the first boss (7.1).
4. A direct-combustion engine intelligent wind pressure switch according to claim 1, characterized in that a second groove is arranged on the lower housing (2), and the pressure sensor (3) is embedded in the second groove.
5. The intelligent wind pressure switch of a direct-fired machine according to claim 4, wherein the elastic member (4) is connected with the pressure sensor (3) through a connecting member (5), a second boss (5.1) is arranged on the connecting member (5), the elastic member (4) is sleeved on the second boss (5.1), and the connecting member (5) is embedded in the second groove.
6. The intelligent wind pressure switch of a direct-fired machine according to claim 2, characterized in that the outer ring of the outer diaphragm (6) is provided with a first protrusion (6.1), the lower housing (2) is provided with a first groove (2.2) matched with the first protrusion (6.1), and the upper housing (1) is provided with a second protrusion (1.2).
7. A direct-fired engine intelligent wind pressure switch according to claim 6, characterized in that the inner diameter of the upper casing (1) is larger than the outer diameter of the lower casing (2).
8. The intelligent wind pressure switch of a direct-fired machine according to claim 1, characterized in that the elastic member (4) is a precision spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921765599.2U CN210378888U (en) | 2019-10-21 | 2019-10-21 | Intelligent wind pressure switch of direct-fired machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921765599.2U CN210378888U (en) | 2019-10-21 | 2019-10-21 | Intelligent wind pressure switch of direct-fired machine |
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| Publication Number | Publication Date |
|---|---|
| CN210378888U true CN210378888U (en) | 2020-04-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921765599.2U Active CN210378888U (en) | 2019-10-21 | 2019-10-21 | Intelligent wind pressure switch of direct-fired machine |
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| Country | Link |
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| CN (1) | CN210378888U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111948576A (en) * | 2020-08-05 | 2020-11-17 | 国网河北省电力有限公司沧州供电分公司 | Line monitoring equipment based on GIM |
-
2019
- 2019-10-21 CN CN201921765599.2U patent/CN210378888U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111948576A (en) * | 2020-08-05 | 2020-11-17 | 国网河北省电力有限公司沧州供电分公司 | Line monitoring equipment based on GIM |
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