Fan coil capable of adjusting oxygen content of indoor air

Abstract

The utility model discloses a fan coil capable of adjusting the oxygen content of indoor air, which comprises a rack, a centrifugal fan and an oxygen supply device, the centrifugal fan is arranged on the rack and connected with a rotating motor through a rotating shaft, the rack extends towards the rotating motor to form a support, the rotating motor is mounted on the support, and the oxygen supply device is arranged on the rack. A receding groove is defined between the support and the rotating motor, the oxygen supply device comprises a water tank arranged in the receding groove, a fluid input pipeline and a fluid output pipeline, the fluid input pipeline and the fluid output pipeline are arranged on the water tank, and the water tank is used for containing hydrogen peroxide; the water tank is also provided with an oxygen outlet; when the oxygen content of the environment is smaller than a preset value, the fluid input pipeline supplements a preset amount of hydrogen peroxide to the water tank, meanwhile, the water tank is heated by heat of the rotating motor, the hydrogen peroxide is promoted to decompose oxygen, and the oxygen is conveyed into the preset environment through the centrifugal fan. Consumed oxygen is continuously supplemented along with indoor air circulation, and the structure is simple and stable.

Description

Technical Field

[0001] The utility model relates to the field of air conditioning equipment, in particular to a fan coil unit capable of adjusting the oxygen content of indoor air. Background Art

[0002] In the design of traditional fan coil units (refer to existing air conditioners, which mainly use heat exchange between fans and condensing plates to transport cold fluid to a relatively closed room), indoor air is circulated to meet cooling and heating needs.

[0003] In order to reduce the load of the fan, most indoor environments are relatively closed. Under normal circumstances, the oxygen content in the air is about 21%. When the oxygen concentration is between 19.5% and 23.5%, people can live a normal life.

[0004] However, as the oxygen in the indoor air is continuously consumed, the oxygen content will gradually decrease. When the oxygen content drops below 19.5%, people will begin to breathe faster, feel tired and weak, and their work efficiency will decrease. Utility Model Content

[0005] The main purpose of the utility model is to provide a fan coil unit capable of adjusting the oxygen content of indoor air, aiming to adjust the oxygen content in real time by detecting the air circulating indoors without the need for a fresh air system, so as to maintain a normal oxygen content for the indoor air.

[0006] To achieve the above object, the utility model provides a fan coil unit capable of adjusting the oxygen content of indoor air, comprising:

[0007] frame;

[0008] A centrifugal fan, wherein the centrifugal fan is arranged on a frame, the centrifugal fan is connected to a rotating motor via a rotating shaft, a support is extended from the frame toward the rotating motor, the rotating motor is mounted on the support, and an avoidance groove is formed between the support and the rotating motor;

[0009] An oxygen supply device, the oxygen supply device comprising a water tank arranged in the avoidance tank and a fluid input pipe and a fluid output pipe arranged in the water tank, the water tank is used to place hydrogen peroxide; the water tank is also provided with an oxygen outlet;

[0010] When the ambient oxygen content is less than a predetermined value, the fluid input pipe replenishes a predetermined amount of hydrogen peroxide to the water tank. At the same time, the water tank is heated by the heat of the rotating motor and the hydrogen peroxide is caused to decompose oxygen, and the oxygen is transported into the predetermined environment through the centrifugal fan.

[0011] In the actual design of the technical solution of the utility model, a water tank is arranged at the position of the rotating motor, and then the water tank is heated to decompose the hydrogen peroxide to produce a predetermined amount of oxygen, which is transported to the environment through a centrifugal fan. As the indoor air circulates, the consumed oxygen content is continuously replenished, and the structure is simple and stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0013] Figure 2 This is a schematic diagram of the rear of the hidden part of the housing of the utility model;

[0014] Figure 3 Schematic diagram of the oxygen supply device.

[0015] In the figure, 1 is a frame, 11 is a centrifugal fan, 12 is a rotating shaft, 13 is a rotating motor, 21 is a support, 22 is a avoidance groove, 3 is an oxygen supply device, 30 is a water tank, 31 is a fluid input pipeline, 32 is a fluid output pipeline, 41 is a first probe, 42 is a second probe, 5 is a curved surface, 61 is a first two-way valve, 62 is a second two-way valve, 71 is an air outlet, 72 is a shell, and 8 is a condenser assembly. DETAILED DESCRIPTION

[0016] The following will be combined with the accompanying drawings to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial...), then the directional indication is only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0018] In addition, if there are descriptions involving "first" or "second" etc. in the embodiments of the utility model, the descriptions of "first" or "second" etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0019] like Figures 1 to 3 As shown, a fan coil unit capable of adjusting the oxygen content of indoor air comprises:

[0020] Rack 1;

[0021] A centrifugal fan 11 is disposed on a frame 1. The centrifugal fan 11 is connected to a rotating motor 13 via a rotating shaft 12. A support 21 is extended from the frame 1 toward the rotating motor 13. The rotating motor 13 is mounted on the support 21. An avoidance groove 22 is formed between the support 21 and the rotating motor 13.

[0022] An oxygen supply device 3, the oxygen supply device 3 comprises a water tank arranged in the avoidance tank 22 and a fluid input pipe 31 and a fluid output pipe 32 arranged in the water tank, the water tank is used to place hydrogen peroxide; the water tank is also provided with an oxygen outlet 100;

[0023] When the ambient oxygen content is less than a predetermined value, the fluid input pipe 31 replenishes a predetermined amount of hydrogen peroxide to the water tank. At the same time, the water tank is heated by the heat of the rotating motor 13 and the hydrogen peroxide is caused to decompose oxygen, and the oxygen is transported into the predetermined environment through the centrifugal fan.

[0024] In the actual design, a water tank is set at the position of the rotating motor 13, and then the water tank is heated to decompose the hydrogen peroxide to produce a predetermined amount of oxygen, which is then transported to the environment through the centrifugal fan 11. As the indoor air circulates, the consumed oxygen content is continuously replenished. The structure is simple and stable.

[0025] In the embodiment of the utility model, air oxygen content detection probes are respectively provided on both sides of the centrifugal fan 11 .

[0026] Specifically, the air oxygen content detection probe includes a first probe (i.e., one side close to the water tank) and a second probe (far away from the motor and the other side of the water tank) arranged on both sides of the centrifugal fan axis. The first probe can detect the concentration of oxygen decomposed in the water tank, which is used to determine the decomposition degree of hydrogen peroxide in the water tank and whether it is necessary to replace the water (H2O) produced by the decomposition of hydrogen peroxide in the water tank;

[0027] The second probe can determine whether oxygen is needed indoors by detecting the oxygen content of the current indoor return air.

[0028] In the embodiment of the utility model, the water tank is provided with an arc-shaped extended curved surface 5, which is adapted to the shape of the outer wall of the rotating motor 13. The heat generated during the operation of the rotating motor 13 is used to heat the hydrogen peroxide, thereby accelerating the decomposition to generate oxygen. At the same time, the rotating motor 13 can be cooled, thereby reasonably utilizing the heat generated during the operation of the rotating motor 13, thereby killing two birds with one stone.

[0029] Specifically, the fluid input pipeline 31 is provided with a first two-way valve 61 .

[0030] More specifically, the fluid output pipeline 32 is provided with a second two-way valve 62 .

[0031] In the embodiment of the utility model, an air outlet 71 is provided on one side of the frame 1 , and the air outlet is connected to an outer cover 72 of the centrifugal fan 11 .

[0032] In the embodiment of the utility model, the frame 1 is provided with a condenser tube assembly 8 .

[0033] Adjustment method:

[0034] 1. When the second probe detects that the oxygen content of the return air is lower than 19.5%, the first two-way valve of hydrogen peroxide is opened, and the second two-way valve is closed;

[0035] Hydrogen peroxide is injected into the water tank, and under the heating of the waste heat generated by the rotating motor 13, more and more oxygen is decomposed and discharged from the top exhaust port and sucked into one side of the centrifugal fan 11.

[0036] 2. The first two-way valve is set to open at a fixed time to control the injection amount of hydrogen peroxide to prevent hydrogen peroxide from overflowing the water tank. When the second probe detects that the oxygen content of the return air has returned to 21.5%, the remaining hydrogen peroxide in the water tank is allowed to continue to decompose for a period of time. When the first probe detects that the oxygen concentration discharged from the water tank is less than a certain value, the second two-way valve is opened to drain the remaining water in the water tank and stop decomposing oxygen.

[0037] During this period, if the amount of oxygen decomposed by a water tank is insufficient, when the first probe detects that the oxygen concentration discharged from the water tank is less than a certain value, and the second probe detects that the oxygen content of the return air has not recovered to 21.5%, the second two-way valve is opened to empty the remaining water decomposed in the water tank;

[0038] After emptying, the second two-way valve is closed, the first two-way valve is opened, and hydrogen peroxide is continuously injected to continuously decompose and generate oxygen.

[0039] The above description is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the utility model.

Claims

1. A fan coil unit capable of adjusting the oxygen content of indoor air, characterized in that: include: frame; A centrifugal fan, wherein the centrifugal fan is arranged on a frame, the centrifugal fan is connected to a rotating motor via a rotating shaft, a support is extended from the frame toward the rotating motor, the rotating motor is mounted on the support, and an avoidance groove is formed between the support and the rotating motor; An oxygen supply device, the oxygen supply device comprising a water tank arranged in the avoidance tank and a fluid input pipe and a fluid output pipe arranged in the water tank, the water tank is used to place hydrogen peroxide; the water tank is also provided with an oxygen outlet; When the ambient oxygen content is less than a predetermined value, the fluid input pipe replenishes a predetermined amount of hydrogen peroxide to the water tank. At the same time, the water tank is heated by the heat of the rotating motor and the hydrogen peroxide is caused to decompose oxygen, and the oxygen is transported into the predetermined environment through the centrifugal fan.

2. The fan coil unit capable of adjusting the oxygen content of indoor air as claimed in claim 1, characterized in that: Air oxygen content detection probes are respectively arranged on both sides of the centrifugal fan.

3. The fan coil unit capable of adjusting the oxygen content of indoor air as claimed in claim 2, characterized in that: The air oxygen content detection probe comprises a first probe and a second probe which are arranged on both sides of the axial direction of the centrifugal fan.

4. The fan coil unit capable of adjusting the oxygen content of indoor air as claimed in claim 1, characterized in that: The water tank is provided with an arc-shaped extended curved surface, and the curved surface is adapted to the shape of the outer wall of the rotating motor.

5. The fan coil unit capable of adjusting the oxygen content of indoor air as claimed in claim 1, characterized in that: The fluid input pipeline is provided with a first two-way valve.

6. The fan coil unit capable of adjusting the oxygen content of indoor air as claimed in claim 5, characterized in that: The fluid output pipeline is provided with a second two-way valve.

7. The fan coil unit capable of adjusting the oxygen content of indoor air as claimed in claim 1, characterized in that: An air outlet is arranged on one side of the frame, and the air outlet is connected to the outer cover of the centrifugal fan.

8. The fan coil unit capable of adjusting the oxygen content of indoor air as claimed in claim 1, characterized in that: The frame is provided with a condenser tube assembly.

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