CN211177321U - Air conditioner end device capable of measuring flow - Google Patents
Air conditioner end device capable of measuring flow Download PDFInfo
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- CN211177321U CN211177321U CN201922242996.8U CN201922242996U CN211177321U CN 211177321 U CN211177321 U CN 211177321U CN 201922242996 U CN201922242996 U CN 201922242996U CN 211177321 U CN211177321 U CN 211177321U
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Abstract
The utility model discloses an air conditioner end device capable of measuring flow, wherein an actuator is arranged on the surface of one end of a cylinder body, a first pressure-taking ring and a second pressure-taking ring are arranged outside the other end of the cylinder body, a slot is arranged between the first pressure-taking ring and the second pressure-taking ring, a pore plate is movably arranged in the slot, a rotating ring is movably arranged in the slot along the outer edge of the first pressure-taking ring, a peripheral air passage is arranged at the inner side of the periphery of the first pressure-taking ring, the peripheral air passage is communicated with the inside of the cylinder body through an air vent, a first cleaning through hole is arranged at the position, corresponding to each peripheral air passage, of the outer edge of the first pressure-taking ring in the slot, and a plurality of second cleaning through holes are uniformly arranged on the rotating ring, the utility model has reasonable structure, solves the problem that the detection cannot be carried out when the Reynolds number at the position of a full, the detection result is prevented from being influenced by the blockage of the vent hole, so that the precision of the detection result is maximized.
Description
Technical Field
The utility model relates to a warm logical field especially relates to amount of wind current surveying technique, specifically is a measurable flow's air conditioner end device.
Background
The variable air volume end device is one of key equipment of the variable air volume air conditioning system, the air conditioning system adjusts the primary air volume through the end device, tracks the load change and maintains the room temperature, and the variable air volume end device can meet the following basic requirements: (1) receiving an instruction of a system controller, and automatically adjusting the primary air delivery volume according to the room temperature; (2) when the indoor load is increased, the air supply volume of the room can be automatically maintained not to exceed the designed maximum air supply volume; when the load of the air conditioner in the room is reduced, the minimum air supply quantity can be kept so as to meet the minimum fresh air quantity and air flow organization requirements; (3) the primary air damper of the end unit can be completely closed when the room served is not in use.
In the prior art, the flow velocity of fluid that the air conditioner end device that adopts orifice plate formula variable air volume valve can measure can not be too little, and the too little dynamic pressure value that can make of flow velocity is too little, generally requires its full pressure survey hole department reynolds number to be greater than 200, connects the air flue with the pitot tube, disturbs too much, leads to the testing result inaccurate, in case be stained with ash or air vent blocking on the orifice plate, will hardly clear up, consequently, await for urgent need an improved technique and solve this problem that exists among the prior art.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an air conditioner end device capable of measuring flow, which can realize the detection of large and small pressure through a replaceable orifice plate, solves the problem that the detection can not be realized when the Reynolds number at the position of a full pressure measurement hole is less than 200, the first pressure taking ring and the second pressure taking ring are directly communicated with the inside of a cylinder body through vent holes without an external pitot tube, and avoids the interference of the pitot tube on the detected fluid, because the orifice plate is detachable, the orifice plate used in production time can be detached at any time for dust cleaning, the outer edge surfaces of the first pressure taking ring and the second pressure taking ring are respectively provided with a chute, through a rotating ring capable of rotating in the chute and matching with a first cleaning through hole on the surfaces of the first pressure taking ring and the second pressure taking ring, when a second cleaning through hole on the rotating ring is overlapped with the first cleaning through hole, the vent holes can be cleaned or dredged, and the detection result is prevented from being, the accuracy of the detection result is maximized to solve the problems set forth in the background art.
In order to achieve the above object, the utility model provides a following technical scheme: an air conditioner end device capable of measuring flow comprises an actuator, a cylinder, a blade, a first pressure-taking ring, a second pressure-taking ring and a pore plate, wherein the actuator is arranged on the surface of one end of the cylinder;
the actuator comprises a motor, a mcu single-chip microcomputer controller and a shaft lever, the motor is connected with the mcu single-chip microcomputer controller, the mcu single-chip microcomputer controller is connected with the digital-to-analog conversion circuit, and the motor is also connected with the blades through the shaft lever;
the shaft rod penetrates through the shaft hole to be connected with the shaft groove at the lower end of the cylinder body;
the first pressure taking ring is provided with PA pressure taking holes on the outer side, a sliding groove is formed in the surface of the outer edge of the first pressure taking ring, a rotating ring is movably arranged in the sliding groove formed in the outer edge of the first pressure taking ring, the rotating ring is disconnected at the PA pressure taking holes, a rotating handle is arranged on the surface of the outer side of the rotating ring, peripheral air passages are formed in the inner side of the periphery of the first pressure taking ring, the peripheral air passages are communicated with the inside of the barrel through air holes, first cleaning through holes are formed in the sliding groove on the outer edge of the first pressure taking ring and correspond to the peripheral air passages, and a plurality of second cleaning through holes are uniformly formed in the rotating ring;
the PB pressure taking hole is formed in the outer side of the second pressure taking ring, and the structure of the second pressure taking ring is completely consistent with that of the first pressure taking ring;
the orifice plate, the orifice plate is outer along being provided with the rubber ring, rubber ring one end is provided with the arc apron, the arc apron is kept away from orifice plate one end and is provided with the handle, the upper end and the lower extreme of arc apron all are provided with first otic placode.
Preferably, the utility model provides a pair of measurable flow's air conditioner end device, wherein, the upper end that the barrel is located slot department and lower extreme all are provided with the second otic placode and are used for linking to each other with first otic placode, insert the inside back of slot of barrel when the orifice plate for fixed orifice plate.
Preferably, the utility model provides a pair of measurable flow's air conditioner end device, wherein, PA pressure tapping and PB pressure tapping link to each other with pressure differential sensor respectively, and pressure differential sensor links to each other with mcu single chip microcomputer controller through digital-to-analog conversion circuit again, calculates the amount of wind through calculating the pressure differential, through output signal control motor.
Preferably, the utility model provides a pair of measurable flow's air conditioner end device, wherein, the spout both sides that the outer edge of clamping ring was got to first clamping ring and second are provided with the draw-in groove respectively, first clamping ring and the second of getting is got and is provided with the rubber circle in the first clean through-hole that the clamping ring opened, the rubber circle is outwards little protruding for cooperate the use with the rotating ring, and the rubber circle outwards is little protruding can make the rotating ring seal first clean through-hole completely.
Preferably, the utility model provides a pair of measurable flow's air conditioner end device, wherein, the swivel becket both sides are provided with the arch, the protruding activity of swivel becket both sides sets up in the draw-in groove of spout both sides, the swivel becket inboard is opened flutedly, be provided with the sealing strip in the inboard recess of swivel becket, when the clean through-hole of second staggers with first clean through-hole, the sealing strip is used for sealing first clean through-hole completely.
Preferably, the utility model provides a pair of measurable flow's air conditioner end device, wherein, the arc apron is semi-circular structure and the radian is unanimous with the radian of barrel.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) the utility model discloses it is rational in infrastructure, through removable orifice plate, realize that big or small pressure all can detect, solved and pressed the problem that can't detect when surveying hole department reynolds number is less than 200 entirely.
(2) And the first pressure taking ring and the second pressure taking ring are directly communicated with the interior of the cylinder through the air holes, so that an external pitot tube is not needed, and the interference of the pitot tube on the detected fluid is avoided.
(3) Because the orifice plate is for dismantling, to the orifice plate after the time of production uses, can pull down at any time and carry out the dust clearance.
(4) The first clamping ring and the second clamping ring of getting have all opened the spout along the surface outward, through the swivel becket that can be at the spout internal rotation to cooperation first clamping ring and the first clean through-hole on second clamping ring surface of getting, when the clean through-hole of second on the swivel becket coincides with first clean through-hole, can clear up or dredge the air vent, avoid blockking up the influence testing result, make the precision of testing result reach the maximize.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a first pressure extraction ring configuration;
FIG. 3 is an enlarged schematic view of the circled portion of FIG. 2;
FIG. 4 is a schematic view of a cross-sectional structure of the outer edge of the first pressure ring;
FIG. 5 is a schematic diagram of an orifice plate configuration;
FIG. 6 is a schematic structural view of a cartridge slot;
fig. 7 is a schematic cross-sectional view of the rotating ring.
Wherein: barrel 1, blade 2, first pressure ring 3, second pressure ring 4, orifice plate 5, motor 6, mcu single chip microcomputer controller 7, axostylus axostyle 8, PA pressure hole 9, spout 10, swivel 11, change 12, peripheral air flue 13, air vent 14, first clean through-hole 15, the clean through-hole of second 16, PB pressure hole 17, rubber ring 18, arc apron 19, handle 20, first otic placode 21, second otic placode 22, rubber circle 23, arch 24, sealing strip 25.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the embodiments of the present invention and the accompanying drawings, and obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-5, the present invention provides a technical solution: an air conditioner end device capable of measuring flow comprises an actuator, a cylinder 1, a blade 2, a first pressure obtaining ring 3, a second pressure obtaining ring 4 and a pore plate 5, wherein the actuator is arranged on the surface of one end of the cylinder 1, the blade 2 is arranged in the cylinder 1 and connected with the actuator, the first pressure obtaining ring 3 and the second pressure obtaining ring 4 are arranged outside the other end of the cylinder 1, a slot is formed between the first pressure obtaining ring 3 and the second pressure obtaining ring 4 of the cylinder 1, and the pore plate 5 is movably arranged in the slot; the actuator comprises a motor 6, a mcu single chip microcomputer controller 7 and a shaft lever 8, the motor 6 is connected with the mcu single chip microcomputer controller 7, the mcu single chip microcomputer controller 7 is connected with a digital-to-analog conversion circuit, and the motor 6 is also connected with the blade 2 through the shaft lever 8; the upper end of the cylinder body 1 is provided with a shaft hole, the lower end of the cylinder body 1 is provided with a shaft groove, and the shaft lever 8 passes through the shaft hole to be connected with the shaft groove at the lower end of the cylinder body 1; the PA pressure taking hole 9 is formed in the outer side of the first pressure taking ring 3, a sliding groove 10 is formed in the surface of the outer edge of the first pressure taking ring 3, a rotating ring 11 is movably arranged in the sliding groove 10 formed in the outer edge of the first pressure taking ring 3, the rotating ring 11 is disconnected at the position where the PA pressure taking hole 9 is located, a rotating handle 12 is arranged on the surface of the outer side of the rotating ring 11, a peripheral air passage 13 is formed in the inner side of the periphery of the first pressure taking ring 3, the peripheral air passage 13 is communicated with the inside of the barrel body 1 through an air hole 14, first cleaning through holes 15 are formed in the position, corresponding to each peripheral air passage 13, of the outer edge of the first pressure taking ring 3 in the sliding groove 10; a PB pressure taking hole 17 is formed in the outer side of the second pressure taking ring 4, the structure of the second pressure taking ring 4 is completely consistent with that of the first pressure taking ring 3, the PA pressure taking hole 9 and the PB pressure taking hole 17 are respectively connected with a pressure difference sensor, the pressure difference sensor is connected with the mcu single chip microcomputer controller 7 through a digital-to-analog conversion circuit, clamping grooves are respectively formed in two sides of a sliding groove 10 in the outer edge of the first pressure taking ring 3 and the outer edge of the second pressure taking ring 4, a rubber ring 23 is arranged in a first cleaning through hole 15 formed in the first pressure taking ring 3 and the second pressure taking ring 4, and the rubber ring 23 is slightly convex outwards; the outer edge of orifice plate 5 is provided with rubber ring 18, and 18 one end of rubber ring is provided with arc apron 19, and arc apron 19 is semi-circular structure and radian unanimous with the radian of barrel 1, and 5 one end of orifice plate are kept away from to arc apron 19 and are provided with handle 20, and the upper end and the lower extreme of arc apron 19 all are provided with first otic placode 21.
As shown in fig. 6, the upper end and the lower end of the cylinder 1 at the slot are provided with a second ear plate 22 for connecting with the first ear plate 21.
As shown in fig. 7, two sides of the rotating ring 11 are provided with protrusions 24, the protrusions 24 on two sides of the rotating ring 11 are movably disposed in the slots on two sides of the sliding chute 10, the inner side of the rotating ring 11 is provided with a groove, and a sealing strip 25 is disposed in the groove on the inner side of the rotating ring 11.
The installation method and the use principle are as follows: firstly, selecting a proper pore plate 5 according to the cylinder diameter, then inserting the pore plate 5 assembly into a slot of a cylinder body 1, connecting a first lug plate 21 and a second lug plate 22 through bolts, fixing the pore plate 5, then rotating a rotating handle 12 to drive a rotating ring 11 to rotate, enabling a first cleaning through hole 15 to be staggered with a rotating through hole B on the rotating ring 11, sealing a peripheral air passage 13, only exhausting air from a PA pressure-taking hole 9 of a first pressure-taking ring 3 or a PB pressure-taking hole 17 of a second pressure-taking ring 4, then respectively connecting the PA pressure-taking hole 9 and the PB pressure-taking hole 17 with a differential pressure sensor, connecting the differential pressure sensor with a mcu singlechip controller 7 through a digital-analog conversion circuit, receiving a set air volume signal input by the mcu singlechip controller 7, outputting a feedback signal, calculating a differential pressure algorithm to obtain air volume, outputting a control signal to a motor 6, controlling the opening degree of a blade 2 through the motor 6, thereby changing the differential pressure, until reaching suitable pressure (principle: different pressure difference is produced before and after the fluid with different flow velocity flows through the orifice plate 5, the flow velocity of the fluid can be calculated through Bernoulli formula, the flow rate of the fluid can be controlled through the opening of the valve), the utility model has reasonable structure, the size and the pressure can be detected through the replaceable orifice plate 5, the problem that the Reynolds number at the position of a full pressure detection hole can not be detected when being less than 200 is solved, the first pressure taking ring 3 and the second pressure taking ring 4 are directly communicated with the inner part of the cylinder body 1 through the vent hole 14, the external pitot tube is not needed, the interference of the pitot tube to the detected fluid is avoided, because the orifice plate 5 is detachable, the orifice plate 5 after being used in production time can be detached at any time for dust cleaning, the outer edge surfaces of the first pressure taking ring 3 and the second pressure taking ring 4 are both provided with the chutes 10, the rotating ring 11 which can rotate in the chutes 10 is matched with the first cleaning through holes 15, when the second cleaning through hole 16 on the rotating ring 11 is overlapped with the first cleaning through hole 15, the vent hole 14 can be cleaned or dredged, the detection result is prevented from being influenced by blockage, and the precision of the detection result is maximized.
The details of the present invention are well known to those skilled in the art.
Finally, it is to be noted that: the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the examples, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified and replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.
Claims (6)
1. An air conditioner end device capable of measuring flow is characterized in that: the device comprises an actuator, a cylinder body (1), a blade (2), a first pressure-obtaining ring (3), a second pressure-obtaining ring (4) and a pore plate (5), wherein the actuator is arranged on the surface of one end of the cylinder body (1), the blade (2) is arranged in the cylinder body (1) and connected with the actuator, the first pressure-obtaining ring (3) and the second pressure-obtaining ring (4) are arranged outside the other end of the cylinder body (1), a slot is formed between the first pressure-obtaining ring (3) and the second pressure-obtaining ring (4) of the cylinder body (1), and the pore plate (5) is movably arranged in the slot;
the actuator comprises a motor (6), a mcu single-chip microcomputer controller (7) and a shaft lever (8), the motor (6) is connected with the mcu single-chip microcomputer controller (7), the mcu single-chip microcomputer controller (7) is connected with a digital-to-analog conversion circuit, and the motor (6) is further connected with the blade (2) through the shaft lever (8);
the shaft rod type oil cylinder comprises a cylinder body (1), wherein a shaft hole is formed in the upper end of the cylinder body (1), a shaft groove is formed in the lower end of the cylinder body (1), and the shaft rod (8) penetrates through the shaft hole to be connected with the shaft groove in the lower end of the cylinder body (1);
a PA pressure taking hole (9) is arranged on the outer side of the first pressure taking ring (3), a sliding groove (10) is arranged on the surface of the outer edge of the first pressure-taking ring (3), a rotating ring (11) is movably arranged in the sliding groove (10) arranged on the outer edge of the first pressure-taking ring (3), the rotating ring (11) is disconnected at the PA pressure taking hole (9), the outer side surface of the rotating ring (11) is provided with a rotating handle (12), a peripheral air passage (13) is arranged on the inner side of the periphery of the first pressure taking ring (3), the peripheral air passage (13) is communicated with the interior of the cylinder body (1) through a vent hole (14), the outer edge of the first pressure taking ring (3) is positioned in the sliding groove (10) and is provided with first cleaning through holes (15) corresponding to the peripheral air passages (13), a plurality of second cleaning through holes (16) are uniformly formed in the rotating ring (11);
the PB pressure taking hole (17) is formed in the outer side of the second pressure taking ring (4), and the structure of the second pressure taking ring (4) is completely consistent with that of the first pressure taking ring (3);
the hole plate (5), hole plate (5) outer edge is provided with rubber ring (18), rubber ring (18) one end is provided with arc apron (19), arc apron (19) are kept away from hole plate (5) one end and are provided with handle (20), the upper end and the lower extreme of arc apron (19) all are provided with first otic placode (21).
2. A measurable flow air conditioning terminal unit as set forth in claim 1 wherein: the upper end and the lower end of the cylinder body (1) at the slot are respectively provided with a second ear plate (22) which is used for being connected with the first ear plate (21).
3. A measurable flow air conditioning terminal unit as set forth in claim 1 wherein: the PA pressure-taking hole (9) and the PB pressure-taking hole (17) are respectively connected with a differential pressure sensor, and the differential pressure sensor is connected with the mcu singlechip controller (7) through a digital-to-analog conversion circuit.
4. A measurable flow air conditioning terminal unit as set forth in claim 1 wherein: the rubber ring is characterized in that clamping grooves are respectively formed in two sides of a sliding groove (10) formed in the outer edge of the first compression ring (3) and the outer edge of the second compression ring (4), rubber rings (23) are arranged in first cleaning through holes (15) formed in the first compression ring (3) and the second compression ring (4), and the rubber rings (23) are slightly convex outwards.
5. A measurable flow air conditioning terminal unit as set forth in claim 1 wherein: the novel sealing device is characterized in that bulges (24) are arranged on two sides of the rotating ring (11), the bulges (24) on two sides of the rotating ring (11) are movably arranged in clamping grooves on two sides of the sliding groove (10), a groove is formed in the inner side of the rotating ring (11), and a sealing strip (25) is arranged in the groove in the inner side of the rotating ring (11).
6. A measurable flow air conditioning terminal unit as set forth in claim 1 wherein: the arc cover plate (19) is of a semicircular structure, and the radian of the arc cover plate is consistent with that of the cylinder body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922242996.8U CN211177321U (en) | 2019-12-16 | 2019-12-16 | Air conditioner end device capable of measuring flow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922242996.8U CN211177321U (en) | 2019-12-16 | 2019-12-16 | Air conditioner end device capable of measuring flow |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211177321U true CN211177321U (en) | 2020-08-04 |
Family
ID=71797616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922242996.8U Active CN211177321U (en) | 2019-12-16 | 2019-12-16 | Air conditioner end device capable of measuring flow |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211177321U (en) |
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2019
- 2019-12-16 CN CN201922242996.8U patent/CN211177321U/en active Active
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