Round thermal driving variable air volume tuyere

Abstract

The utility model discloses a circular thermal driving variable air volume tuyere which comprises a tuyere shell, and an air valve is arranged in the tuyere shell. A valve plate assembly is arranged in the air valve; an induction groove is formed in the tuyere shell, and a nozzle, a cold supply temperature sensing probe and a heat supply temperature sensing probe are installed in the induction groove; an adjusting rotary disc located below the inducing groove is further installed at the bottom of the air opening shell. The adjusting turntable is connected with the valve plate assembly through a spring steel wire; a mode conversion temperature sensing probe is installed at an air inlet of the air opening shell and connected with the adjusting rotary disc through a connecting rod mechanism. The adjusting turntable is also connected with the cold supply temperature sensing probe and the heat supply temperature sensing probe through connecting rod mechanisms; the temperature of a room is sensed through the sensing probe, the valve plate is controlled to move to adjust the opening degree of the air valve and the air supply amount of the air port by utilizing the characteristic of thermal expansion and cold contraction of a thermosensitive material in the sensing probe, and the opening degree of the air valve can be automatically adjusted according to the change of room load.

Description

TECHNICAL FIELD

[0001] The utility model relates to a heating ventilation air conditioning equipment, concretely relates to a circular heat power driven variable air volume air outlet used as a variable air volume air supply air conditioning terminal device in a heating ventilation air conditioning variable air volume system. BACKGROUND

[0002] The variable air volume system is a full air conditioning system which keeps constant air supply temperature and automatically adjusts air supply volume of the air conditioning system according to indoor load change or indoor required parameter change, so that indoor parameter meets the requirement, and the system adjusts air volume to adapt to load change by keeping air supply state unchanged.

[0003] In the heating ventilation air conditioning system, the traditional form adopts a variable air volume box with an ordinary air outlet, and the air speed of the ordinary air outlet changes with the change of air supply volume, so that the air supply speed is reduced correspondingly in the case of reduced air supply volume, and the air supply speed is reduced correspondingly in the case of reduced air supply volume, and the air supply speed is reduced correspondingly in the case of reduced air supply volume.

[0004] In addition, the adjustment of terminal air volume needs to be realized by the variable air volume box, and the traditional variable air volume box needs to rely on powerful automatic control technology, and the air supply volume is adjusted by electrical equipment such as a DDC controller and a software program, so that the design, programming, installation and construction are required to be high, and the electrical equipment is prone to aging, burning and other fault conditions. UTILITY MODEL CONTENTS

[0005] The utility model needs to solve the technical problem of providing a circular heat power driven variable air volume air outlet, solving the problem that the ordinary air outlet cannot reach the working area due to the influence of air supply volume, improving the air supply effect, and making the temperature field distribution in the room more consistent.

[0006] To solve the above technical problems, the technical scheme adopted by the utility model is as follows.

[0007] A circular heat power driven variable air volume air outlet, comprising an air outlet shell, a wind valve is arranged in the air outlet shell, a valve plate assembly which can slide up and down is arranged in the wind valve, an induction groove is arranged in the air outlet shell, a nozzle and a cooling temperature sensing probe and a heating temperature sensing probe which drive the valve plate assembly to move up and down to adjust the air supply volume by thermal expansion and cold contraction are respectively arranged in the induction groove, an adjusting turntable is arranged below the induction groove at the bottom of the air outlet shell, the adjusting turntable is connected with a connecting rod mechanism, the adjusting turntable and the valve plate assembly are connected through a spring steel wire, a mode conversion temperature sensing probe is arranged at the air inlet of the air outlet shell, the mode conversion temperature sensing probe and the adjusting turntable are connected through the connecting rod mechanism, and the adjusting turntable and the cooling temperature sensing probe and the heating temperature sensing probe are also connected through the connecting rod mechanism.

[0008] The cooling temperature sensing probe is internally slidably provided with a cooling temperature sensing probe plunger connected with the connecting rod mechanism following thermal expansion and contraction of the temperature sensing probe; when the indoor temperature rises in the cooling mode, the cooling temperature sensing probe plunger is extended to push the connecting rod mechanism to drive the adjusting disc to rotate clockwise to open the air valve.

[0009] The mode conversion temperature sensing probe is internally slidably provided with a mode conversion temperature sensing probe plunger connected with the connecting rod mechanism following thermal expansion and contraction of the temperature sensing probe; the heating temperature sensing probe is internally slidably provided with a heating temperature sensing probe plunger connected with the connecting rod mechanism following thermal expansion and contraction of the temperature sensing probe; in the heating mode, the mode conversion temperature sensing probe at the air inlet is heated and expanded to push out the mode conversion temperature sensing probe plunger and drive the adjusting disc to rotate counterclockwise to open the air valve; when the indoor temperature rises, the heating temperature sensing probe is heated and expanded to push out the heating temperature sensing probe plunger to drive the adjusting disc to rotate clockwise.

[0010] The connecting rod mechanism comprises a central shaft arranged at the center of the adjusting disc, the central shaft is arranged through the induction groove, the upper portion of the central shaft is provided with a central shaft top plate connected with the mode conversion temperature sensing probe, and the lower portion of the central shaft is provided with a connecting rod connected with the cooling temperature sensing probe and the heating temperature sensing probe.

[0011] The valve plate assembly is enclosed into a petal-shaped structure by eight valve plates, and a circular air supply channel is formed between the valve plates, and the eight valve plates are connected with the adjusting disc through eight spring steel wires.

[0012] Thanks to the above technical solutions, the technical progress achieved by the utility model is as follows.

[0013] The utility model discloses a circular thermal driving variable air volume air port, through inductive probe response room temperature, and utilize inductive probe internal thermosensitive material thermal expansion and contraction's characteristic control valve plate removal adjust the opening of air valve and the air supply of air port, can according to the change of room load automatically adjust air valve opening, and the application completely relies on the action of machinery to realize the automatic regulation of air valve opening and air supply, does not need electrical element control, simplifies design construction work, makes the equipment operation more stable and reliable.

[0014] Under the premise of relatively constant air supply speed, the air supply amount is adjusted by changing the flow area of the air port, even in the case of reduced air supply, the high range and good attachment capacity of air supply can be ensured, the indoor air flow is more sufficient, so that the temperature field distribution in the room is more consistent, and the problem that the ordinary air port cannot reach the working area due to the influence of air supply is solved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 This is a schematic diagram of the specific structure of the present utility model;

[0016] Fig. 2 This is a top view of the present invention;

[0017] Fig. 3 This is a bottom view of the present invention;

[0018] Fig. 4 This is a schematic diagram of the specific structure of the linkage mechanism described in this utility model.

[0019] The components are: 1. Air outlet housing, 2. Air valve, 3. Cooling temperature sensor, 4. Heating temperature sensor, 5. Adjusting turntable, 6. Valve plate, 7. Nozzle, 8. Spring steel wire, 9. Cooling temperature sensor pin, 10. Connecting rod, 11. Releaseable spring, 12. Induction groove, 13. Heating temperature sensor pin, 14. Mode conversion temperature sensor, 15. Mode conversion temperature sensor pin, 16. Central shaft top plate, 17. Central shaft. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0021] A circular, heat-driven variable air volume (VAV) vent, such as Figs. 1 to 4 As shown, it includes an air outlet housing 1, an air valve 2 is provided inside the air outlet housing 1, a valve plate assembly that can slide up and down is provided inside the air valve 2, an induction groove 12 is provided inside the air outlet housing 1, and a nozzle 7 and a cooling temperature probe 3 and a heating temperature probe 4 containing heat-sensitive substances are respectively installed in the induction groove 12.

[0022] The bottom of the air vent housing 1 is also equipped with an adjustment turntable 5 located below the guide groove 12, and the adjustment turntable 5 is connected to the linkage mechanism.

[0023] The linkage mechanism includes a central shaft 17 located at the center of the adjusting turntable 5. The central shaft 17 passes through the guide groove 12. A central shaft top plate 16 is provided on the upper part of the central shaft 17, and a connecting rod 10 is provided on the lower part of the central shaft 17.

[0024] A mode conversion temperature sensor 14 is installed at the air inlet of the air vent housing 1. A mode conversion temperature sensor pin 15 is slidably installed inside the mode conversion temperature sensor 14. The mode conversion temperature sensor 14 is connected to the adjustment turntable 5 through a linkage mechanism.

[0025] When the mode conversion temperature probe 14 expands due to heat, it pushes out the probe pin 15 to contact the central shaft top plate 16, causing the central shaft top plate 16 to rotate counterclockwise. Under the transmission of the central shaft 17, it drives the adjusting turntable 5 to rotate counterclockwise, increasing the air volume of the air valve.

[0026] The adjusting turntable 5 is also connected with the cooling temperature sensing probe 3 or the heating temperature sensing probe 4 through a connecting rod mechanism.

[0027] The cooling temperature sensing probe 3 is internally slidably provided with a cooling temperature sensing probe ejector pin 9, which is driven to connect with the connecting rod mechanism and push the adjusting turntable 5 to rotate through thermal expansion and contraction of the internal heat-sensitive material.

[0028] When the cooling temperature sensing probe 3 is heated and expanded, the cooling temperature sensing probe ejector pin 9 is pushed out and contacts the connecting rod 10, which drives the adjusting turntable 5 to rotate counterclockwise, and the valve plate 6 is pulled to increase the air supply.

[0029] The heating temperature sensing probe 4 is internally slidably provided with a heating temperature sensing probe ejector pin 13, which is driven to connect with the connecting rod mechanism and push the adjusting turntable 5 to rotate through thermal expansion and contraction of the internal heat-sensitive material.

[0030] When the heating temperature sensing probe 4 is heated and expanded, the heating temperature sensing probe ejector pin 13 is pushed out and contacts the connecting rod 10, which drives the adjusting turntable 5 to rotate clockwise to adjust the air volume.

[0031] Since the heat-sensitive material filled in the temperature sensing probe is very sensitive to temperature changes, when the indoor air temperature flowing through the temperature sensing probe changes, the internal material of the temperature sensing probe will change in thermal expansion and contraction, thereby driving the adjusting turntable to rotate, and further driving the air valve valve plate assembly to open or close to control the opening of the air valve.

[0032] The connecting rod 10 is connected with the cooling temperature sensing probe 3 through a releasable spring 11, which can automatically reset the connecting rod after the cooling temperature sensing probe ejector pin 9 contracts.

[0033] When the connecting rod 10 is connected with the temperature sensing probe through the releasable spring 11, the internal heat-sensitive material of the cooling temperature sensing probe 3 will drive the connecting rod 10 to move after thermal expansion and contraction.

[0034] When the connecting rod 10 is not connected with the temperature sensing probe through the releasable spring 11, the connecting rod 10 is not affected by the thermal expansion and contraction of the internal heat-sensitive material of the temperature sensing probe. For example, when the air valve 2 is fully open, the releasable spring 11 connecting the connecting rod 10 and the temperature sensing probe is removed. At this time, the connecting rod 10 cannot automatically reset, and the air valve 2 is always in the fully open state.

[0035] The adjusting turntable 5 is connected with the valve plate assembly through a spring wire 8. When the adjusting turntable 5 rotates, the valve plate assembly slides up and down in the air valve 2 to adjust the size of the air supply outlet under the connection action of the spring wire 8.

[0036] The valve piece assembly is enclosed by eight valve pieces 6 into a lotus petal structure, and circular air supply channels are formed between the valve pieces 6, and each valve piece 6 is connected with the adjusting rotary disc 5 through a spring wire 8.

[0037] The structure that the valve pieces 6 slide in the air valve 2 is various, and can be selected according to actual needs, such as sliding rail and sliding block cooperation, guide column and guide cooperation, and the like, and will not be described in detail here.

[0038] In the heating mode, the mode conversion temperature sensing probe 14 detects the temperature at the air inlet, the heating temperature sensing probe 4 works to detect the indoor air temperature, and in the cooling mode, the cooling temperature sensing probe 3 works to detect the indoor air temperature.

[0039] Specifically, in the cooling mode, if the indoor air temperature rises, the cooling temperature sensing probe 3 expands under heat, pushes out the internal cooling temperature sensing probe ejector pin 9 and drives the adjusting rotary disc 5 to rotate clockwise, the adjusting rotary disc 5 rotates and pulls down the valve piece 6 to open the air valve 2, and with the gradual extension of the cooling temperature sensing probe ejector pin 9, the air supply volume is gradually increased; if the indoor air temperature decreases, the cooling temperature sensing probe 3 cools and shrinks, the cooling temperature sensing probe ejector pin 9 retracts, and the adjusting rotary disc 5 reversely rotates under the pulling force of the releasable spring 11, and pulls up the valve piece 6 to reduce the air supply volume.

[0040] In the heating mode, hot air enters the indoor from the air inlet, at the same time, the mode conversion temperature sensing probe 14 expands under heat and drives the adjusting rotary disc 5 to rotate counterclockwise through the center shaft top plate 16 to open the air valve 2, and with the extension of the mode conversion temperature sensing probe ejector pin 15, the air volume is gradually increased, when the indoor air temperature rises, the heating temperature sensing probe 4 expands under heat, the heating temperature sensing probe ejector pin 13 drives the adjusting rotary disc 5 to rotate clockwise through the connecting rod 10, the force of the heating temperature sensing probe ejector pin 13 and the mode conversion temperature sensing probe ejector pin 15 is opposite, and the valve piece 6 is pulled to reduce the air supply volume; if the indoor air temperature decreases, the heating temperature sensing probe 4 cools and shrinks, the heating temperature sensing probe 17 retracts, the adjusting rotary disc 5 reversely rotates, and the valve piece 6 is pulled to increase the air supply volume.

[0041] The use mode and working principle of the utility model are as follows:

[0042] Firstly, the temperature sensing probe in the induction groove 12 is rotated to a suitable angle to set the room required temperature, at this time, no matter in the cooling mode or in the heating mode, the initial state of the air valve is the closed state.

[0043] Next, taking the cooling mode as an example, indoor air is supplied through the nozzle 7, at this time, negative pressure is formed in the induction groove 12, indoor air is induced into the induction groove and is sensed by the temperature sensing probe, so that the temperature sensing probe detects the temperature of the room air.

[0044] If the indoor air temperature rises, the cooling temperature sensing probe 3 is heated and expands, pushes the internal cooling temperature sensing probe plunger 9 out and drives the adjusting disc 5 to rotate, the adjusting disc 5 rotates counterclockwise and pulls down the valve plate 6 to increase the air supply; if the indoor air temperature decreases, the temperature sensing probe cools and shrinks, the cooling temperature sensing probe plunger 9 retracts, the adjusting disc 5 reversely rotates under the tension of the releasable spring 11, and pulls up the valve plate 6 to close the air supply.

[0045] The cooling temperature sensing probe is internally provided with a heat-sensitive material capable of sensing temperature and having thermal expansion and contraction characteristics, and the length of the cooling temperature sensing probe plunger 9 extending and retracting in the temperature sensing probe, the rotation angle of the adjusting disc 5 and the moving distance of the valve plate 6 are pre-adjusted through testing, so that the corresponding adjustment can be made according to the detected temperature during the thermal expansion and contraction of the temperature sensing probe to meet the indoor temperature setting requirement.

[0046] The utility model discloses under the premise of relatively constant air supply wind speed, adjusts the air supply by changing the flow area of air port, even in the case of air supply wind volume reduction, can guarantee the high range and good adhesion ability of air supply, makes the flow of indoor air more sufficient, thereby makes the temperature field distribution of indoor more tend to be consistent, solved the problem that ordinary air port is influenced by air supply volume and cannot reach the work area.

[0047] The utility model discloses a circular thermal power drive variable air volume air port, through inductive probe inductive room temperature, and utilize inductive probe internal heat -sensitive material thermal expansion and contraction's characteristic control valve plate removal adjust the opening of air valve and the air supply of air port, can according to the change of room load automatically adjust air valve opening, and the application completely relies on the action of machinery to realize the automatic regulation of air valve opening and air supply, does not need electrical element control, simplifies the design construction work, makes equipment operation more stable and reliable.

Claims

1. A circular thermodynamically driven variable air volume air outlet, characterized in that: The system includes an air outlet housing (1), inside which is an air valve (2); the air valve (2) contains a valve plate assembly that can slide up and down; the air outlet housing (1) contains an induction groove (12), inside which are installed nozzles (7) and a cooling temperature probe (3) and a heating temperature probe (4) containing heat-sensitive materials that move the valve plate assembly up and down to adjust the air supply volume through thermal expansion and contraction; the bottom of the air outlet housing (1) is also equipped with a device located at the bottom of the induction groove. The adjustment turntable (5) is located below the guide groove (12) and is connected to the linkage mechanism. The adjustment turntable (5) is connected to the valve plate assembly by a spring steel wire (8). A mode conversion temperature sensor (14) is installed at the air inlet of the air outlet shell (1) and is connected to the adjustment turntable (5) by a linkage mechanism. The adjustment turntable (5) is also connected to the cooling temperature sensor (3) and the heating temperature sensor (4) by a linkage mechanism.

2. The circular thermodynamically driven variable air volume air outlet according to claim 1, characterized in that: The cooling temperature sensor probe (3) is internally equipped with a cooling temperature sensor pin (9) that follows the thermal expansion and contraction of the temperature sensor probe and is connected to the linkage mechanism. When the indoor temperature rises in the cooling mode, the cooling temperature sensor pin (9) extends and pushes the linkage mechanism to drive the adjustment turntable (5) to rotate clockwise and open the air valve.

3. A circular thermodynamically driven variable air volume air outlet according to claim 1, characterized in that: The mode conversion temperature probe (14) has a slidingly arranged mode conversion temperature probe pin (15) connected to the linkage mechanism that follows the thermal expansion and contraction of the temperature probe; the heating temperature probe (4) has a slidingly arranged heating temperature probe pin (13) connected to the linkage mechanism that follows the thermal expansion and contraction of the temperature probe; in the heating mode, the mode conversion temperature probe (14) expands due to heat at the air inlet, pushing out the mode conversion temperature probe pin (15) and driving the adjusting turntable (5) to rotate counterclockwise through the linkage mechanism to open the air valve. When the indoor temperature rises, the heating temperature probe (4) expands due to heat, pushing out the heating temperature probe pin (13) and driving the adjusting turntable (5) to rotate clockwise.

4. A circular thermodynamically driven variable air volume air outlet according to claim 1, characterized in that: The linkage mechanism includes a central shaft (17) located at the center of the adjustment turntable (5), the central shaft (17) passing through the induction groove (12), the upper part of the central shaft (17) is provided with a central shaft top plate (16) connected to the mode conversion temperature sensor (14), and the lower part of the central shaft (17) is provided with a connecting rod (10) connected to the cooling temperature sensor (3) and the heating temperature sensor (4).

5. A circular thermodynamically driven variable air volume air outlet according to claim 1, characterized in that: The valve plate assembly consists of eight valve plates (6) forming a petal-shaped structure, and a circular air supply channel is formed between the valve plates (6). The eight valve plates (6) are respectively connected to the adjusting turntable (5) through eight spring steel wires (8).

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