JP6037939B2 - Humidifier - Google Patents

Description

  The present invention relates to a humidifier.

  The vaporizing humidifier is provided with a humidifier with a large number of bags made of moisture permeable membranes in the air passage, supplying water to the humidifier, and vaporizing the water in the humidifier by heat exchange with the air, It humidifies the air and functions to increase the latent heat in the air. In such a vaporization type humidifier, impurities in tap water supplied to the moisture permeable membrane are filtered by the moisture permeable membrane, so that impurities accumulate inside the moisture permeable membrane with the humidification time, and water vapor ventilation of the moisture permeable membrane occurs. The road is blocked and the amount of humidification decreases.

  In order to suppress the accumulation of impurities in the moisture permeable membrane, the concentration of impurities in the moisture permeable membrane has been regularly increased periodically in proportion to the cumulative amount of humidification. A method for draining water has been proposed (see, for example, Patent Document 1).

JP 2004-324999 A ([0012], [0015], FIG. 2, FIG. 3)

  However, the humidifier and the ventilator with a humidifying function described in Patent Document 1 close the water supply system electromagnetic valve and open the drainage drain valve when the humidifier is stopped, and the residual water in the moisture permeable membrane is removed. It is a mechanism for draining (drainage process). In this case, the residual water in the moisture permeable membrane is drained by its own weight, but if sufficient air is not supplied from the outside of the moisture permeable membrane to the inside of the moisture permeable membrane through the water vapor vent according to the amount of drainage, The inside of the membrane is in a negative pressure state. When the atmospheric pressure and the weight of the residual water in the moisture permeable membrane are balanced, no further drainage occurs. In the aging state when the accumulated humidification amount has increased, impurities are deposited inside the moisture permeable membrane, so that sufficient air is not supplied through the water vapor ventilation passage, and the moisture permeable membrane is in a negative pressure state It has become. For this reason, atmospheric pressure and the residual water dead weight in a moisture-permeable film will balance, and residual water with a high density | concentration will remain in a moisture-permeable film. This state is repeated every time the drainage process is performed, and there is a problem that impurities are increasingly deposited and the amount of humidification is reduced.

  The present invention has been made against the background of the above-described problems, and an object of the present invention is to obtain a humidifier that efficiently suppresses manufacturing costs and efficiently drains water inside the humidifier without complicating the structure. .

The humidifying device of the present invention has a water supply electromagnetic valve, has a water supply system to which water is supplied when the water supply electromagnetic valve is opened, and a drainage electromagnetic valve, and water is supplied when the drainage electromagnetic valve is opened. A drainage system that is discharged, a humidifier that humidifies air with water supplied from the water supply system, and a control unit that controls opening and closing of the water supply electromagnetic valve and the drainage electromagnetic valve, and the control unit includes: By opening the water supply electromagnetic valve and the drainage electromagnetic valve, the water supplied to the humidifier together with the water supplied from the water supply system is discharged from the drainage system , and the water supply system is A first pipe having a water supply electromagnetic valve; and a second pipe connected to a lower portion of the first pipe and the humidifier, wherein the drainage system is connected to the second pipe and the second pipe. A third pipe having the drain electromagnetic valve, and the water supply electromagnetic valve and When the drain electromagnetic valve is opened, the water supplied from the water supply system flows through the first pipe and the third pipe, and the water supplied to the humidifier is the second pipe and the third pipe. These waters join together in the third pipe and are discharged from the drainage system, and the flow path narrows from the downstream side of the water supply system to the upstream side of the drainage system in the first pipe. An ejector having a throttle part is provided, and the water supplied to the humidifier merges with the water that has passed through the throttle part from the water supply system on the outlet side of the throttle part .

  According to the present invention, the control means opens the water supply electromagnetic valve and the drainage electromagnetic valve to discharge the water supplied to the humidifier together with the water supplied from the water supply system from the drainage system. For this reason, without complicating the structure, the manufacturing cost can be suppressed and the water inside the humidifier can be drained efficiently.

1 is a schematic diagram of a humidifier 100 according to Embodiment 1. FIG. It is a schematic diagram which shows the humidification process of the humidification apparatus 100 which concerns on Embodiment 1, and shows the detail of the humidification apparatus 100. FIG. 1 is a system configuration diagram of a humidifying device 100 according to Embodiment 1. FIG. It is a schematic diagram which shows the humidification process of the humidification apparatus 100 which concerns on Embodiment 1. FIG. It is a schematic diagram which shows the water supply / drain process of the humidification apparatus 100 which concerns on Embodiment 1. FIG. It is a schematic diagram which shows the drainage process of the humidification apparatus 100 which concerns on Embodiment 1. FIG.

Embodiment 1 FIG.
FIG. 1 is a schematic diagram of a humidifier 100 according to Embodiment 1. FIG. FIG. 2 is a schematic diagram showing a humidifying process of the humidifying device 100 according to Embodiment 1, and shows details of the humidifying device 100. FIG. 3 is a system configuration diagram of the humidifier 100 according to the first embodiment.

  As shown in FIG. 1, the humidifying device 100 is a device that humidifies a supply airflow supplied to a room as needed to make a humidified airflow, and the outer shell is formed of a box-shaped main body box 1. . The humidifier 100 includes a blower 3, a heat exchanger 4, a humidifier 5, and a drain pan 9. As shown in FIG. 3, the humidifier 100 also includes a control means 50.

  A ventilation path 2 is formed in the main body box 1, and a blower 3, a heat exchanger 4, and a humidifier 5 are arranged in this order from the ventilation direction. For this reason, after the air flow sent out from the air blower 3 is heated by the heat exchanger 4, it is humidified when passing through the humidifier 5, and is supplied to the room as a humidified atmosphere.

  The heat exchanger 4 is installed to heat the air flow sent from the blower 3 and lower the relative humidity, and constitutes a part of a refrigeration cycle (not shown). The air sent from the blower 3 and the refrigerant of the heat exchanger 4 exchange heat, so that the temperature of the air sent from the blower 3 rises. A refrigerant pipe 6 is connected to the heat exchanger 4. The humidifier 5 is, for example, a natural evaporation type composed of a hexahedron. The humidifier 5 is connected to a water pipe 7 piped from a water supply source such as a water supply facility. A water supply / drainage unit 8 is disposed between the humidifier 5 and the water pipe 7. A drain pan 9 is installed below the heat exchanger 4 and the humidifier 5.

  The air flow that has been raised in temperature and reduced in relative humidity through the heat exchanger 4 passes through the humidifier 5 and thereby takes in a larger amount of steam. For this reason, a humid air flow is supplied indoors. In a facility where the amount of humidification is not so required, the heat exchanger 4 may not be provided.

  As shown in FIG. 2, the humidifier 5 is configured by arranging a plurality of humidifying functional bodies 14 having the same shape and the same size in parallel. The humidifier 5 is formed with an air supply layer (not shown) serving as a ventilation path through which air passes and every other water retention layer (not shown) for storing water. That is, each humidification function body 14 is provided with a water guiding body (not shown) that constitutes a water retention layer and a spacer (not shown) that constitutes an air supply layer. The water guide body is a bag-like member formed by a porous moisture permeable membrane 18 that does not transmit water and allows water vapor to pass through a water guide member (not shown) formed of a three-dimensional perforated plate having rigidity and water permeability. It is configured as a rectangular or square flat member having a composite sheet structure that is enclosed in a film body and bonded together. The arrow 17 conceptually shows the flow of air discharged from the inside of the humidifying function body 14 to the outside. In the first embodiment, an example in which a plurality of humidification function bodies 14 are provided has been described. However, the present invention is not limited to this, and one may be used.

  As shown in FIG. 2, the water supply / drainage unit 8 includes a water supply system 110 and a drainage system 120. An arrow 41 conceptually shows the flow of water supplied from a water supply source (not shown).

  The water supply system 110 is a water channel that supplies humidifying water to the humidifier 5. The water supply system 110 includes a pressure reducing valve 10 that adjusts the pressure of water supplied to the humidifier 5, a water supply electromagnetic valve 11 that adjusts the flow rate, and a strainer (not shown) that prevents dust from entering the water supply system 110. Is provided. In addition, the water supply system 110 is provided with a water supply system upstream connection portion 21 connected to the water supply source side and a water supply system downstream connection portion 31 connected to the second pipe (connection tube) 16b. The water supply system 110 is provided with a first pipe 16 a having the water supply electromagnetic valve 11 and a second pipe 16 b (connection tube) connected to the lower part of the first pipe 16 a and the humidifier 5.

  The drainage system 120 is a water channel that supplies water discharged from the humidifier 5, and is disposed below the humidifier 5. The drainage system 120 is provided with a drainage electromagnetic valve 12 that adjusts the amount of drainage. Further, the drainage system 120 is provided with a drainage system upstream side connection part 22 connected to the second pipe 16 b and a drainage system downstream side connection part 32 toward the drain pan 9. Further, the drainage system 120 is provided with a second pipe 16 b and a third pipe 16 c connected to the second pipe 16 b and having the drain electromagnetic valve 12. The second pipe 16b of the water supply system 110 and the second pipe 16b of the drainage system 120 are the same member, and are shared by the water supply system 110 and the drainage system 120.

  As shown in FIG. 1, the water supply system upstream connection part 21, the drainage system upstream connection part 22, the water supply system downstream connection part 31, and the drainage system downstream connection part 32 are all integrated in the drain pan 9. Yes. That is, in a state viewed from above, the water supply system upstream side connection portion 21, the drainage system upstream side connection portion 22, the water supply system downstream side connection portion 31, and the drainage system downstream side connection portion 32 inside the inner periphery of the drain pan 9. Is located.

  An ejector 13 is disposed in the first pipe 16a. The ejector 13 has a throttle portion 13 a having a function of increasing the flow rate of water discharged from the water supply electromagnetic valve 11. The throttle portion 13 a has a narrower channel from the downstream side of the water supply system 110 toward the upstream side of the drainage system 120. The throttle unit 13a is provided at a position where the water sent from the humidifier 5 merges with the water that has passed through the throttle unit 13a on the outlet side of the throttle unit 13a. In addition, the water supply electromagnetic valve 11, the drainage electromagnetic valve 12, and the ejector 13 may be comprised integrally.

  As shown in FIG. 3, the humidifier 100 includes a control unit 50. The control means 50 controls the blower 3 so as to adjust the air volume sent from the blower 3. Further, the control means 50 controls the water supply electromagnetic valve 11 so as to switch between opening and closing of the water supply electromagnetic valve 11. Moreover, the control means 50 controls the drainage electromagnetic valve 12 so as to switch between opening and closing of the drainage electromagnetic valve 12.

  In the humidification process as shown in FIG. 2, the control means 50 controls the water supply electromagnetic valve 11 to the open state and controls the drain electromagnetic valve 12 to the closed state. For this reason, the water supplied to the water supply system 110 is supplied to the humidification function body 14 through the water supply electromagnetic valve 11, the pressure reducing valve 10, the ejector 13, the first pipe 16a, and the second pipe 16b in this order. At this time, the air inside the humidifying function body 14 is discharged from the moisture permeable membrane 18 to the outside. An arrow 17 conceptually shows this air flow. When the humidifying function body 14 is full of water, the humidifying function body 14 is ready to be humidified.

  FIG. 4 is a schematic diagram illustrating a humidifying process of the humidifying device 100 according to Embodiment 1. As in FIG. 2, the control means 50 controls the water supply electromagnetic valve 11 to the open state and controls the drain electromagnetic valve 12 to the closed state. FIG. 4 shows a state in which the humidifying function body 14 is full after a predetermined time elapses with the water supply electromagnetic valve 11 in the open state and the drainage electromagnetic valve 12 in the closed state, as shown in FIG.

  As shown in FIG. 4, when water is filled in the moisture permeable membrane 18, only water vapor is released into the room through the moisture permeable membrane 18. An arrow 15 conceptually shows this water vapor flow. Here, the control means 50 has made the water supply electromagnetic valve 11 into an open state. For this reason, even if water vapor is released from the moisture permeable membrane 18 into the room, water is supplied into the moisture permeable membrane 18 through the water supply system 110, the ejector 13, the first pipe 16a, and the second pipe 16b in this order. . Therefore, the room is continuously humidified.

  In the humidification step shown in FIG. 4, when the control means 50 controls the water supply electromagnetic valve 11 to the closed state and the drainage electromagnetic valve 12 to the open state, the remaining water in the moisture permeable membrane 18 is drained by its own weight. (Draining process). However, at this time, if sufficient air is not supplied from the outside of the moisture permeable membrane 18 to the inside of the moisture permeable membrane 18 through the water vapor passage according to the amount of drainage discharged from the water supply / drainage unit 8, the inside of the moisture permeable membrane 18 is negative. Pressure state. When the atmospheric pressure and the residual water weight in the moisture permeable membrane 18 are balanced, no further drainage occurs. In the time-lapse state in which the integrated humidification amount has increased, hardness components such as calcium carbonate and magnesium carbonate contained in the water supplied to the moisture permeable film 18 and impurities such as silica are deposited inside the moisture permeable film 18. ing. For this reason, sufficient air is not supplied from the room through the water vapor ventilation path through which water vapor passes, and the moisture permeable membrane 18 is in a negative pressure state. For this reason, the atmospheric pressure and the own weight of the residual water in the moisture permeable membrane 18 are balanced, and high concentration residual water remains in the moisture permeable membrane 18. This state is repeated at every drainage process, and more and more impurities accumulate, reducing the amount of humidification. For this reason, it is desirable that the residual water in the moisture permeable membrane 18 be sufficiently drained regularly so that the residue concentration in the moisture permeable membrane 18 does not increase.

  In the first embodiment, for example, in order to drain the remaining water in the moisture permeable membrane 18 sufficiently regularly, the impurity concentration of water inside a certain humidifying function body 14 reaches a certain level of humidity that does not require humidification. When the water stored in the humidifier 5 falls below a predetermined lower limit, the process proceeds to the water supply / drainage process.

  FIG. 5 is a schematic diagram illustrating a water supply / drainage process of the humidifier 100 according to the first embodiment. In the water supply / drainage process, the control means 50 controls the water supply electromagnetic valve 11 to be in an open state, and also controls the drainage electromagnetic valve 12 to be in an open state. An arrow 42 conceptually shows the flow of water flowing out of the drainage system 120.

  As shown in FIG. 5, since the water supply electromagnetic valve 11 is in an open state, the water supplied to the water supply system 110 passes through the water supply electromagnetic valve 11, the pressure reducing valve 10, and the throttle portion 13 a of the ejector 13. Here, the throttle portion 13 a has a narrow channel from the downstream side of the water supply system 110 toward the upstream side of the drainage system 120. For this reason, the flow rate of the water that has passed through the throttle portion 13 a of the ejector 13 increases, and a negative pressure is generated around the throttle portion 13 a of the ejector 13. Further, since the drain electromagnetic valve 12 is in the open state, the remaining water inside the humidifying function body 14 flows down by its own weight, passes through the second pipe 16b, and reaches the outlet side of the throttle portion 13a of the ejector 13. At this time, since the water discharged from the humidifying function body 14 is sucked into the negative pressure at the throttle portion 13a of the ejector 13, the water in the humidifying function body 14 is more efficiently drained than the case of only its own weight. Discharged from. Note that the humidifier 100 may be configured without providing the ejector 13. In this case, the efficiency of draining the water inside the humidifier 5 is worse than when the ejector 13 is provided, but the humidifier 5 is humidified compared with the case where the water inside the humidifier 5 is drained only by its own weight. The efficiency of discharging water inside the vessel 5 is improved.

  In the water supply / drainage process, since the interior of the moisture permeable membrane 18 is not completely filled with water, indoor air flows into the moisture permeable membrane 18. An arrow 17 conceptually shows this air flow. When the water in the humidifying function body 14, the second pipe 16b, and the water supply / drainage unit 8 is discharged from the drainage system 120 and drained more than a predetermined amount, the control means 50 closes the water supply electromagnetic valve 11 and closes the water supply electromagnetic valve 11 as shown in FIG. Move to the drainage process as shown in For example, the control means 50 determines whether or not the amount of water in the humidifier 5 is equal to or greater than a threshold value, and when the amount of water in the humidifier 5 is less than the threshold value, the water supply electromagnetic valve 11 is closed.

  FIG. 6 is a schematic diagram illustrating a draining process of the humidifier 100 according to the first embodiment. In the drainage process, the control means 50 controls the water supply electromagnetic valve 11 to a closed state and controls the drainage electromagnetic valve 12 to an open state.

  As shown in FIG. 6, since the water supply solenoid valve 11 is in the closed state, the remaining water in the moisture permeable membrane 18 is drained by its own weight. When the moisture in the humidifying function body 14 is reduced and humidification is performed again, the process proceeds to a humidification step as shown in FIGS. In addition, in the situation where humidification is required continuously, some amount of water is stored by the water retaining layer in the humidifying function body 14 even during drainage, so the blower 3 and the heat exchanger 4 are in an operating state. There is no problem.

  As described above, in the humidifier 100 according to the first embodiment, the control unit 50 opens the water supply electromagnetic valve 11 and the drainage electromagnetic valve 12 so that the humidifier 5 is supplied with the water supplied from the water supply system 110. The supplied water is discharged from the drainage system 120. For this reason, without complicating the structure, the manufacturing cost can be suppressed, and the water inside the humidifier 5 can be drained efficiently. Also, a sufficient amount of humidification can be ensured over time.

  In addition, in the humidification process as shown in FIGS. 2 and 4, the humidification function body 14 may be drained periodically in order to secure the humidification amount over time. Moreover, the timing which transfers to the water supply / drainage process of FIG. 5 from the humidification process of FIG. 2, FIG. 4 is good to be determined according to having passed predetermined time, for example using a timer (illustration omitted). Further, a concentration detection sensor (not shown) for detecting the impurity concentration of water inside a certain humidifying function body 14 is provided, and when the value of this concentration detection sensor exceeds a predetermined value, the process moves from the humidification process to the water supply / drainage process. It may be. Moreover, you may make it transfer to a water supply / drainage process from a humidification process for every predetermined time interval. Moreover, the user who uses the humidification apparatus 100 may make it transfer to a water supply / drainage process from a humidification process at arbitrary timings.

  DESCRIPTION OF SYMBOLS 1 Main body box, 2 Ventilation path, 3 Blower, 4 Heat exchanger, 5 Humidifier, 6 Refrigerant piping, 7 Water piping, 8 Water supply / drainage unit, 9 Drain pan, 10 Pressure reducing valve, 11 Water supply solenoid valve, 12 Water discharge solenoid valve, 13 Ejector, 13a Restriction part, 14 Humidification function body, 15 arrow, 16a 1st piping, 16b 2nd piping (connection tube), 16c 3rd piping, 17 arrow, 18 Moisture permeable membrane, 21 Water supply system upstream connection part, 22 drainage system upstream connection, 31 water supply system downstream connection, 32 drainage system downstream connection, 41 arrow, 42 arrow, 50 control means, 100 humidifier, 110 water supply system, 120 drainage system.

Claims (4)

A water supply system having a water supply electromagnetic valve, and water is supplied when the water supply electromagnetic valve is opened;
A drainage system having a drainage solenoid valve, wherein water is discharged when the drainage solenoid valve is opened;
A humidifier for humidifying air with water supplied from the water supply system;
Control means for controlling opening and closing of the water supply electromagnetic valve and the drainage electromagnetic valve,
The control means includes
By opening the water supply electromagnetic valve and the drainage electromagnetic valve, the water supplied to the humidifier together with the water supplied from the water supply system is discharged from the drainage system ,
The water supply system is
A first pipe having the water supply solenoid valve;
A second pipe connected to the lower part of the first pipe and the humidifier,
The drainage system is
The second pipe;
A third pipe connected to the second pipe and having the drain electromagnetic valve;
When the water supply electromagnetic valve and the drainage electromagnetic valve are opened, the water supplied from the water supply system flows through the first pipe and the third pipe, and the water supplied to the humidifier is the second pipe. And flowing through the third pipe, these waters merge in the third pipe and are discharged from the drainage system,
The first pipe is provided with an ejector having a constricted portion where the flow path becomes narrower from the downstream side of the water supply system toward the upstream side of the drainage system,
The water supplied to the humidifier is
The humidifying device according to claim 1, wherein the humidifier joins water that has passed through the throttle from the water supply system on an outlet side of the throttle . The humidification device according to claim 1 , wherein the water supply electromagnetic valve, the drainage electromagnetic valve, and the ejector are integrally formed. The control means includes
The water supply solenoid valve and the drainage solenoid valve are opened, and when the amount of water supplied to the humidifier is less than a predetermined threshold, the water supply solenoid valve is closed and the drainage solenoid valve is opened. The humidifying device according to claim 1 or 2 . The humidifier according to any one of claims 1 to 3 , wherein the humidifier includes a moisture permeable membrane that stores water supplied from the water supply system.

Images