Smoke-proof exhaust device of central air conditioner

Abstract

The utility model discloses a smoke-proof exhaust device of a central air conditioner, which comprises a main air supply pipeline, a central variable frequency air conditioning unit connected with the air inlet end of the main air supply pipeline, and a plurality of groups of VAV tail end air supply outlets arranged on the periphery of the main air supply pipeline, and a smoke dust reducing component is arranged at the connecting position of the main air supply pipeline and the central variable frequency air conditioning unit. The smoke dust reducing component comprises a water pump and a water tank connected with the water pumping end of the water pump through a pipe fitting. According to the technical scheme, the smoke dust reducing component is arranged in the air supply pipeline of the central air conditioner, dust reduction treatment is conducted on air in the pipeline from top to bottom by means of communication between the water pump and the water tank and the pipe fitting and the atomization spray head, and smoke dust carried by the air in the air supply pipeline is brought into the collecting hopper by atomized water; through cooperation of the liquid level sensor and the electromagnetic valve, waste water carrying smoke particles is discharged into the waste water tank, and therefore the purpose of purifying the purity of supplied air of the central air conditioner is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of central air-conditioning auxiliary equipment, in particular to a central air-conditioning smoke-proof exhaust device. Background Art

[0002] Central air conditioning basically relies on outdoor wind cabinet main unit, air supply duct and indoor duct unit. The air is extracted through the wind cabinet for treatment and then the suitable air is transported to the duct unit through the air supply duct.

[0003] Since the existing smoke exhaust system that cooperates with the central air conditioner for smoke prevention basically relies on mechanical smoke exhaust to discharge the smoke that enters the room to the outside, that is, the smoke has already entered the room and then discharged. During this period, the smoke has more or less caused harm to the people indoors, and the air supply system of the central air conditioner does not have the function of containing the smoke before it enters the room, a solution of a central air conditioner smoke exhaust device is proposed herein. Utility Model Content

[0004] The utility model aims to provide a central air-conditioning smoke-proof exhaust device to solve the deficiencies mentioned in the background technology.

[0005] In order to solve the drawbacks and defects described in the background technology, the utility model provides the following technical solutions:

[0006] It includes a main air supply duct, a central variable frequency air conditioning unit connected to the air inlet end of the main air supply duct, and an array VAV terminal air supply port arranged around the main air supply duct, and a smoke and dust reduction component is arranged at the connection position between the main air supply duct and the central variable frequency air conditioning unit;

[0007] The smoke and dust reduction component includes a water pump and a water tank connected to the water pump suction end through a pipe fitting, and the water pump discharge end is connected to a water supply pipe penetrating into the inner cavity of the main air supply pipe through a pipe joint, and the end of the water supply pipe located in the inner cavity of the main air supply pipe is connected to an annular elbow, and a plurality of atomizing nozzles are installed through the lower surface of the annular elbow;

[0008] The smoke and dust reduction component also includes a collecting bucket embedded in the lower surface of the inner cavity of the main air supply duct, and a solenoid valve installed on the lower surface of the collecting bucket.

[0009] As a preferred solution of the utility model, a base is fixed on the side wall of the outer surface of the main air supply duct by bolt locking, and the bases of the water pump and the water tank are fixed to the top surface of the base by screws.

[0010] As a preferred solution of the utility model, a water inlet is provided on the side wall of the outer surface of the water tank, the inside of the water inlet is connected to an external water source pipe through a joint, and an electric-controlled valve is installed on the external water source pipe; a water pumping pipe is provided through the outer surface of the water tank, and the end of the water pumping pipe away from the water tank is connected to the water pumping port of the water pump.

[0011] As a preferred solution of the utility model, the annular bend is hollow inside as a whole, and a straight pipe runs through the middle section of the annular bend. The top surface of the straight pipe is connected to one end of the water supply pipe located in the inner cavity of the main air supply duct through a three-way pipe.

[0012] As a preferred solution of the utility model, a spray port is provided on the top surface of the main air supply duct, a fixed cover is embedded in the interior of the spray port, the upper surface of the annular elbow is connected to the upper surface of the inner cavity of the fixed cover, and a through hole for a water supply pipe to pass through is provided on the top of the fixed cover.

[0013] As a preferred solution of the utility model, a collecting port for embedding and installing a collecting bucket is provided on the lower surface of the main air supply duct, and a liquid level sensor is installed at the top of the inner cavity of the collecting bucket to monitor the amount of wastewater inside the collecting bucket.

[0014] As a preferred solution of the utility model, an air supply manifold leading to the interior of the room is installed on the end of the VAV terminal air supply outlet, and a room thermostat is arranged on the surface of the VAV terminal air supply outlet.

[0015] As a preferred solution of the utility model, the air supply port of the central variable frequency air conditioning unit is fixedly connected to the air inlet port of the main air supply duct, and an air inlet port is provided at one end of the central variable frequency air conditioning unit away from the main air supply duct.

[0016] As a preferred solution of the utility model, the collecting bucket is trapezoidal in shape as a whole, and the discharge port of the solenoid valve at the bottom of the collecting bucket is connected to the house drainage pipe groove through a hose.

[0017] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0018] In the technical solution, a smoke and dust reduction component is arranged inside the air supply duct of the central air conditioner, and the air inside the duct is subjected to dust reduction treatment from top to bottom by using pipe fittings and atomizing nozzles, so that the smoke and dust entrained by the air in the air supply duct is brought into the collection bucket by the atomized water, and the wastewater carrying the smoke and dust particles is discharged into the wastewater tank through the cooperation of the liquid level sensor and the solenoid valve, thereby achieving the purpose of purifying the purity of the air supply of the central air conditioner. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0020] Figure 1 This is an overall schematic diagram of the exhaust device of the central air conditioner;

[0021] Figure 2 The overall schematic diagram of the main air supply duct;

[0022] Figure 3 Schematic diagram of smoke and dust reduction components inside the main air supply duct;

[0023] Figure 4 Schematic diagram of the main air supply duct after decomposition.

[0024] Description of reference numerals:

[0025] 1. Main air supply duct; 2. Central variable frequency air conditioning unit; 3. Smoke and dust reduction components; 31. Base; 32. Water pump; 33. Water suction pipe; 34. Water tank; 35. Water supply pipe; 36. Annular elbow; 37. Atomizing nozzle; 38. Fixed cover; 4. Air inlet port; 5. VAV terminal air supply port; 6. Room thermostat; 7. Spray port; 8. Collection port; 9. Collection bucket; 10. Solenoid valve. DETAILED DESCRIPTION

[0026] In order to more clearly explain and illustrate the technical solution and implementation of the present utility model, several preferred specific embodiments for implementing the technical solution of the present utility model are introduced below.

[0027] The following description is merely exemplary in nature and is not intended to limit the present disclosure, application and use. It should be understood that in all these figures, the same or similar figure numbers indicate the same or similar parts and features. The various figures only schematically represent the concepts and principles of the embodiments of the present disclosure, and do not necessarily show the specific dimensions and proportions of the various embodiments of the present disclosure. Specific parts in specific drawings may use exaggerated methods to illustrate the relevant details or structures of the embodiments of the present disclosure. The various publications, patents and published patent specifications cited herein are incorporated herein by reference in their entirety. The technical solutions of the present utility model will be clearly and completely described below in conjunction with the embodiments of the present utility model. Obviously, the described embodiments are only part of the embodiments of the present utility model.

[0028] Embodiment, the preferred technical solution of the central air-conditioning smoke and exhaust device:

[0029] This embodiment includes:

[0030] Refer to the instruction manual Figure 1 , Attachment Figure 3 As shown; a main air supply duct 1, a central variable frequency air conditioning unit 2 connected to the air inlet end of the main air supply duct 1, and an array VAV terminal air supply port 5 arranged on the main air supply duct 1, and a smoke and dust reduction component 3 is arranged at the connection position between the main air supply duct 1 and the central variable frequency air conditioning unit 2; the smoke and dust reduction component 3 includes a water pump 32 and a water tank 34 connected to the water suction end of the water pump 32 through a pipe fitting, and the discharge end of the water pump 32 is connected to a water supply pipe 35 that penetrates into the inner cavity of the main air supply duct 1 through a pipe joint, and the end of the water supply pipe 35 located in the inner cavity of the main air supply duct 1 is connected to an annular elbow 36, and a plurality of atomizing nozzles 37 are installed through the lower surface of the annular elbow 36.

[0031] Refer to the instruction manual Figure 4 As shown; the smoke and dust reduction component 3 also includes a collecting bucket 9 embedded in the lower surface of the inner cavity of the main air supply duct 1, and a solenoid valve 10 installed on the lower surface of the collecting bucket 9; the collecting bucket 9 is trapezoidal as a whole, and the discharge port of the solenoid valve 10 at the bottom of the collecting bucket 9 is connected to the house drainage pipe groove through a hose; the lower surface of the main air supply duct 1 is provided with a collecting port 8 for the collecting bucket 9 to be embedded, and a liquid level sensor is installed at the top of the inner cavity of the collecting bucket 9 to monitor the amount of wastewater inside the collecting bucket 9.

[0032] Refer to the instruction manual Figure 3 As shown in the figure, a base 31 is fixed on the outer side wall of the main air supply duct 1 by bolt locking, and the bases of the water pump 32 and the water tank 34 are fixed to the top surface of the base 31 by screws. A water injection port is provided on the outer side wall of the water tank 34, and the inside of the water injection port is connected to the external water source pipe through a joint, and an electric control valve is installed on the external water source pipe; a water pumping pipe 33 is provided on the outer surface of the water tank 34, and the end of the water pumping pipe 33 away from the water tank 34 is connected to the water pumping port of the water pump 32.

[0033] Refer to the instruction manual Figure 3 , Attachment Figure 4 As shown, the annular curved pipe 36 is annular in shape and hollow inside, and a straight pipe runs through the middle section of the annular curved pipe 36, and the top surface of the straight pipe is connected to one end of the water supply pipe 35 located in the inner cavity of the main air supply duct 1 through a tee pipe. A spray port 7 is provided on the top surface of the main air supply duct 1, and a fixed cover 38 is embedded and installed inside the spray port 7, and the upper surface of the annular curved pipe 36 is connected to the upper surface of the inner cavity of the fixed cover 38, and a through hole is provided on the top of the fixed cover 38 for the water supply pipe 35 to pass through.

[0034] Refer to the instruction manual Figure 1As shown; an air supply manifold leading to the interior of the room is installed at the end of the VAV terminal air supply outlet 5, and a room thermostat 6 is arranged on the surface of the VAV terminal air supply outlet 5; the air supply port of the central variable frequency air-conditioning unit 2 is fixedly connected to the air inlet port of the main air supply duct 1, and an air inlet port 4 is arranged at the end of the central variable frequency air-conditioning unit 2 away from the main air supply duct 1.

[0035] According to the above-mentioned preferred technical solution, the workflow of the technical solution is described as follows:

[0036] The central variable frequency air conditioning unit 2 draws air through the air inlet port 4 for processing and discharges the air into the main air supply duct 1. Before the air enters each room through the VAV terminal air supply port 5, the smoke sensor inside the main air supply duct 1 detects whether there is smoke, and after detecting the presence of smoke, it relies on the control main board to send a pumping command to the water pump 32. At the same time, the water source pipe opens the electric control valve to inject clean water into the water tank 34.

[0037] After the clean water is pumped into the water supply pipe 35 through the water pump 33 and the water pump 32, the clean water will circulate inside the annular elbow 36 and pass to the atomizing nozzle 37 with the help of water pressure, so that the clean water sprays the air inside the main air supply duct 1 from top to bottom in an atomized state, and the smoke and dust particles in the air inside the main air supply duct 1 fall into the collection bucket 9 by means of dust reduction. When the waste water level inside the collection bucket 9 is too high, the liquid level sensor sends a high liquid level instruction to the control main board to open the solenoid valve 10, so that the waste water is discharged into the house drainage pipe groove along the hose.

[0038] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A central air-conditioning smoke and exhaust device, characterized in that: It comprises a main air supply duct (1), a central variable frequency air conditioning unit (2) connected to the air inlet end of the main air supply duct (1), and an array of VAV terminal air supply ports (5) arranged around the main air supply duct (1), and a smoke and dust reduction component (3) is arranged at the connection position between the main air supply duct (1) and the central variable frequency air conditioning unit (2); The smoke and dust reduction component (3) comprises a water pump (32) and a water tank (34) connected to the water pump (32) pumping end via a pipe fitting, and the water discharge end of the water pump (32) is connected to a water supply pipe (35) penetrating into the inner cavity of the main air supply pipe (1) via a pipe joint, and the end of the water supply pipe (35) located in the inner cavity of the main air supply pipe (1) is connected to an annular elbow (36), and a plurality of atomizing nozzles (37) are installed through the lower surface of the annular elbow (36); The smoke and dust reduction component (3) also includes a collection bucket (9) mounted on the lower surface of the inner cavity of the main air supply duct (1), and a solenoid valve (10) mounted on the lower surface of the collection bucket (9).

2. A central air-conditioning smoke and exhaust device according to claim 1, characterized in that: A base (31) is fixed to the side wall of the outer surface of the main air supply duct (1) by means of bolt locking, and the bases of the water pump (32) and the water tank (34) are fixed to the top surface of the base (31) by means of screws.

3. A central air-conditioning smoke and exhaust device according to claim 1, characterized in that: The water tank (34) is provided with a water inlet on the side wall of the outer surface, the inside of the water inlet is connected to an external water source pipe via a joint, and an electric control valve is installed on the external water source pipe; a water pumping pipe (33) is provided through the outer surface of the water tank (34), and the end of the water pumping pipe (33) away from the water tank (34) is connected to the water pumping port of the water pump (32).

4. A central air-conditioning smoke and exhaust device according to claim 1, characterized in that: The annular curved pipe (36) is annular in shape and hollow inside, and a straight pipe runs through the middle section of the annular curved pipe (36). The top surface of the straight pipe is connected to one end of the water supply pipe (35) located in the inner cavity of the main air supply pipe (1) through a three-way pipe.

5. A central air-conditioning smoke and exhaust device according to claim 1, characterized in that: The top surface of the main air supply duct (1) is provided with a spray port (7), a fixed cover (38) is embedded in the interior of the spray port (7), and the upper surface of the annular curved pipe (36) is connected to the upper surface of the inner cavity of the fixed cover (38), and the top of the fixed cover (38) is provided with a through hole through which a water supply pipe (35) passes.

6. A central air-conditioning smoke and exhaust device according to claim 1, characterized in that: The lower surface of the main air supply duct (1) is provided with a collecting port (8) for the collecting bucket (9) to be embedded and installed, and a liquid level sensor is installed at the top of the inner cavity of the collecting bucket (9) for monitoring the amount of wastewater inside the collecting bucket (9).

7. A central air-conditioning smoke and exhaust device according to claim 1, characterized in that: An air supply manifold leading to the interior of the room is installed at the end of the VAV terminal air supply outlet (5), and a room thermostat (6) is arranged on the surface of the VAV terminal air supply outlet (5).

8. A central air-conditioning smoke and exhaust device according to claim 1, characterized in that: The air supply port of the central variable frequency air conditioning unit (2) is fixedly connected to the air inlet port of the main air supply duct (1), and an air inlet port (4) is provided at one end of the central variable frequency air conditioning unit (2) away from the main air supply duct (1).

9. A central air-conditioning smoke and exhaust device according to claim 1, characterized in that: The collecting bucket (9) is trapezoidal in shape as a whole, and the discharge port of the solenoid valve (10) at the bottom of the collecting bucket (9) is connected to the house drainage pipe groove through a hose.

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