CN210221272U

CN210221272U - Circulating air duct structure for constant-temperature and constant-humidity weighing equipment

Info

Publication number: CN210221272U
Application number: CN201921237317.1U
Authority: CN
Inventors: Changlei Li; 李长磊
Original assignee: Shandong Hanwen Instrument Co Ltd
Current assignee: Shandong Hanwen Instrument Co Ltd
Priority date: 2019-08-02
Filing date: 2019-08-02
Publication date: 2020-03-31
Anticipated expiration: 2029-08-02

Abstract

The utility model discloses a circulation wind channel structure for constant temperature and humidity weighing equipment, including box, air supply fan, wind channel board and vertical fan blade machine, be provided with the verification room in the box, be provided with the bearing plate on the box inner wall, the one end of keeping away from the bearing plate in the box is provided with heating device, refrigerating plant, humidification device and second motor, the air supply fan is connected with the second motor, top surface in the box is provided with vertical ventilating board, the outside of vertical ventilating board is provided with the guide plate, be provided with the water conservancy diversion shelf on the verification room. A plurality of horizontal ventilation holes have been seted up on this a circulation wind channel structure vertical ventilating board for constant temperature and humidity weighing equipment, guarantee the wind that the fan of supplying air blew off, the direction is unanimous, and the amount of wind is even, is favorable to realizing even air supply, and the guide plate becomes vertical wind with the crosswind, through the a plurality of ventilation hole that sets up on the water conservancy diversion baffle, reaches the purpose of even air supply downwards, guarantees that temperature distribution is even.

Description

Circulating air duct structure for constant-temperature and constant-humidity weighing equipment

Technical Field

The utility model relates to a constant temperature and humidity wind channel structure technical field specifically is a circulation wind channel structure for constant temperature and humidity weighing-appliance.

Background

Constant temperature and humidity weighing-appliance can carry out accurate control to temperature, humidity or illumination, place high accuracy balance in constant temperature and humidity environment, the sample that will weigh is put into and is weighed in the constant temperature and humidity box after balanced 24 hours again, very big improvement weigh the accuracy of sample result, generally speaking, the environment of accurate control constant temperature and humidity, it is not enough only to flow and the heating load of air or air humidity control, need adjust the wind channel structure, so that further optimize constant temperature and humidity effect.

In the prior art, the optimization of the air duct generally adopts the improvement of the air inlet volume, a fan with larger power needs to be installed, the suction effect of the high-power fan can influence the local temperature distribution, and the constant temperature and humidity effect can be greatly reduced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a circulation wind channel structure for constant temperature and humidity weighing-appliance to the optimization to the wind channel on solving the present market that above-mentioned background art provided improves the intake usually, and the bigger fan of installation power, and the suction of high-power fan influences local temperature distribution, can reduce the problem of constant temperature and humidity effect greatly.

In order to achieve the above object, the utility model provides a following technical scheme: a circulating air duct structure for constant temperature and humidity weighing equipment comprises a box body, an air supply fan, an air duct plate and a vertical fan blade machine, wherein a verification chamber is arranged in the box body, a supporting plate is arranged on the inner wall of the box body, a heating device, a refrigerating device, a humidifying device and a second motor are arranged at one end, far away from the supporting plate, in the box body, the refrigerating device is positioned between the heating device and the humidifying device, wherein,

the air supply fan is connected with the second motor, a vertical ventilation plate is arranged on the top surface in the box body, a guide plate is arranged on the outer side of the vertical ventilation plate, a guide shelf is arranged on the verification chamber, and a vertical partition plate is arranged on the bottom surface of the guide shelf;

the wind channel plate is installed on the verification chamber and located on the left side of the vertical partition plate, a first motor is installed on the support plate and connected with a first bevel gear through a rotating rod, a transmission rod is arranged in the support plate, the vertical fan blade machine is connected with a second bevel gear through the transmission rod, and the first bevel gear is located at the top of the second bevel gear.

Preferably, the heating device, the refrigerating device and the humidifying device are arranged on the same vertical straight line, and the heating device, the refrigerating device and the humidifying device are fixedly connected with the box body.

Preferably, 9 rows of vent holes are uniformly distributed on the flow guide shelf, and the vent holes on the flow guide shelf are of a V-shaped structure.

Preferably, the air duct plate is arranged to be inclined to the horizontal plane, and the inclination angle of the air duct plate is 15 °.

Preferably, the guide plate is the circular arc type, the guide plate is provided with threely, three the top surface in the box is evenly installed to the guide plate, the guide plate is connected for the block with the connection structure of box.

Preferably, the first bevel gear and the second bevel gear are perpendicular to the surface of the first bevel gear and are connected with each other through a toothed key.

Compared with the prior art, the beneficial effects of the utility model are that: this a circulation wind channel structure for constant temperature and humidity weighing equipment is provided with:

1. the vertical ventilation plate is arranged at the air outlet of the air supply fan, and a plurality of transverse ventilation holes are formed in the vertical ventilation plate, so that the air blown by the air supply fan is ensured to be consistent in direction and uniform in air quantity, and uniform air supply is facilitated;

2. the air is horizontally blown out from the air supply fan, becomes vertical air under the flow guiding action of the arc-shaped flow guide plate, directly blows to the flow guide partition plate, and achieves the aim of uniformly supplying air downwards through the plurality of air vents arranged on the flow guide partition plate, so that the uniform temperature distribution is ensured;

3. the bottom length of wind channel board is less than its top length, and the gas of being convenient for insufflate from the top is concentrated at the bottom, increases the velocity of flow behind the wind channel board, and the wind channel board of slope has the guide effect to gas simultaneously, is convenient for from erecting the baffle lower extreme and flows through, and gas circulates.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is an enlarged schematic structural view at a position a of the present invention;

fig. 3 is the structure schematic diagram of the vertical fan blade machine of the utility model.

In the figure: 1. a box body; 2. a verification chamber; 3. an air supply fan; 4. a heating device; 5. a refrigeration device; 6. a humidifying device; 7. a first motor; 8. a support plate; 9. a vertical partition plate; 10. a vertical ventilation board; 11. a flow guide shelf; 12. an air duct plate; 13. a baffle; 14. a transmission rod; 15. a vertical fan blade machine; 16. rotating the rod; 17. a first bevel gear; 18. a second bevel gear; 19. a second motor.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that 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. 1-3, the present invention provides a technical solution: a circulating air duct structure for constant temperature and humidity weighing equipment comprises a box body 1, a verification chamber 2, an air supply fan 3, a heating device 4, a refrigerating device 5, a humidifying device 6, a first motor 7, a supporting plate 8, a vertical partition plate 9, a vertical ventilating plate 10, a flow guide shelf 11, an air duct plate 12, a flow guide plate 13, a transmission rod 14, a vertical fan blade machine 15, a rotating rod 16, a first bevel gear 17, a second bevel gear 18 and a second motor 19, wherein the verification chamber 2 is arranged in the box body 1, the supporting plate 8 is arranged on the inner wall of the box body 1, one end, far away from the supporting plate 8, in the box body 1 is provided with the heating device 4, the refrigerating device 5, the humidifying device 6 and the second motor 19, the refrigerating device 5 is positioned between the heating device 4 and the humidifying device 6, the heating device 4, the refrigerating device 5 and the humidifying device 6 are arranged on the same, the heating device 4, the refrigerating device 5 and the humidifying device 6 are fixedly connected with the box body 1, so as to increase or decrease the temperature and the humidity of the gas flowing through, wherein,

the air supply fan 3 is connected with a second motor 19, a vertical ventilating plate 10 is arranged on the top surface in the box body 1, a guide plate 13 is arranged on the outer side of the vertical ventilating plate 10, the guide plate 13 is in an arc shape, three guide plates 13 are arranged on the three guide plates 13 and are uniformly arranged on the top surface in the box body 1, the connection structure of the guide plates 13 and the box body 1 is in clamping connection, under the guiding action of the arc-shaped guide plate 13, the air horizontally blown out from the air supply fan 3 becomes vertical air and directly blows towards the flow guiding partition plate 11, the verification chamber 2 is provided with the flow guiding

partition plate

11, 9 rows of ventilation holes are uniformly distributed on the flow guiding partition plate 11, the ventilation holes on the flow guiding partition plate 11 are in a V-shaped structure, the purpose of uniform downward air supply is achieved through the 9 rows of ventilation holes arranged on the flow guiding partition plate 11, and the vertical partition plate 9 is installed on the bottom surface, the air duct plate 12 is obliquely arranged with the horizontal plane, the inclination angle of the air duct plate 12 is 15 degrees, air is conveniently blown in from the top end of the air duct plate 12 and then is concentrated at the bottom end, the flow velocity passing through the air duct plate 12 is increased, and meanwhile, the oblique air duct plate 12 has a guiding effect on air, so that the air can conveniently flow through the lower end of the vertical partition plate 9 for circulation;

the wind channel plate 12 is installed on the verification chamber 2, the first motor 7 is installed on the support plate 8, the first motor 7 is connected with a first bevel gear 17 through a rotating rod 16, a transmission rod 14 is arranged in the support plate 8, the vertical fan 15 is connected with a second bevel gear 18 through the transmission rod 14, the first bevel gear 17 is located at the top of the second bevel gear 18, the surfaces of the first bevel gear 17 and the second bevel gear 18 are perpendicular, and the first bevel gear 17 and the second bevel gear 18 are connected with each other through a toothed key, so that the first motor 7 drives the vertical fan 15 to rotate.

The working principle is as follows: when the circulating air duct structure for the constant-temperature constant-humidity weighing equipment is used, firstly, the heating device 4, the refrigerating device 5 and the humidifying device 6 provide a stable temperature and humidity environment for the interior of the device, the second motor 19 is started, the air supply fan 3 rotates and blows air, the air passes through the vertical ventilating plate 10, a plurality of transverse air vents are formed in the vertical ventilating plate 10 to ensure that the air blown by the air supply fan 3 is consistent in direction and uniform in air quantity, so that uniform air supply is realized, the air is converted into vertical air under the flow guiding effect of the arc-shaped flow guiding plate 13 and directly blows towards the flow guiding partition plate 11, the purpose of uniform downward air supply is achieved through the plurality of air vents arranged on the flow guiding partition plate 11, the uniform temperature distribution is ensured, the first motor 7 drives the first bevel gear 17 to rotate through the rotating rod 16, and the first bevel gear 17 is in toothed key connection with the second bevel gear, the first bevel gear 17 drives the second bevel gear 18 and the vertical fan blade machine 15 on the transmission rod 14 to rotate, gas is conveyed onto the air duct plate 12 by the vertical fan blade machine 15, the length of the top end of the air duct plate 12 is larger than that of the bottom end of the air duct plate, so that the gas is conveniently concentrated at the bottom end after being blown in from the top end of the air duct plate 12, the flow velocity after passing through the air duct plate 12 is increased, meanwhile, the inclined air duct plate 12 has a guiding effect on the gas, so that the gas can conveniently flow through the lower end of the vertical partition plate 9 to circulate the gas, and the content which is not described in detail in the description belongs.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a circulation wind channel structure for constant temperature and humidity weighing equipment, includes box (1), air supply fan (3), wind channel board (12) and vertical fan blade machine (15), its characterized in that: a detection chamber (2) is arranged in the box body (1), a supporting plate (8) is arranged on the inner wall of the box body (1), a heating device (4), a refrigerating device (5), a humidifying device (6) and a second motor (19) are arranged at one end, far away from the supporting plate (8), in the box body (1), the refrigerating device (5) is positioned between the heating device (4) and the humidifying device (6), wherein,

the air supply fan (3) is connected with a second motor (19), a vertical ventilating plate (10) is arranged on the top surface in the box body (1), a guide plate (13) is arranged on the outer side of the vertical ventilating plate (10), a guide shelf (11) is arranged on the verification chamber (2), and a vertical partition plate (9) is arranged on the bottom surface of the guide shelf (11);

the wind channel plate (12) is installed on the verification chamber (2), the wind channel plate (12) is located on the left side of the vertical partition plate (9), the support plate (8) is provided with the first motor (7), the first motor (7) is connected with the first bevel gear (17) through the rotating rod (16), the support plate (8) is internally provided with the transmission rod (14), the vertical fan blade machine (15) is connected with the second bevel gear (18) through the transmission rod (14), and the first bevel gear (17) is located at the top of the second bevel gear (18).

2. The circulating air duct structure for the constant-temperature and constant-humidity weighing equipment as claimed in claim 1, wherein: heating device (4), refrigerating plant (5) and humidification device (6) set up on same vertical straight line, heating device (4), refrigerating plant (5) and humidification device (6) and box (1) fixed connection.

3. The circulating air duct structure for the constant-temperature and constant-humidity weighing equipment as claimed in claim 1, wherein: the air guide shelf is characterized in that 9 rows of vent holes are uniformly distributed on the air guide shelf (11), and the vent holes on the air guide shelf (11) are of V-shaped structures.

4. The circulating air duct structure for the constant-temperature and constant-humidity weighing equipment as claimed in claim 1, wherein: the air duct plate (12) is obliquely arranged with the horizontal plane, and the inclination angle of the air duct plate (12) is 15 degrees.

5. The circulating air duct structure for the constant-temperature and constant-humidity weighing equipment as claimed in claim 1, wherein: guide plate (13) are the circular arc type, guide plate (13) are provided with threely, three guide plate (13) evenly install the top surface in box (1), guide plate (13) are connected for the block with the connection structure of box (1).

6. The circulating air duct structure for the constant-temperature and constant-humidity weighing equipment as claimed in claim 1, wherein: the first bevel gear (17) is perpendicular to the surface of the second bevel gear (18), and the first bevel gear (17) and the second bevel gear (18) are connected with each other through a toothed key.