CN210425396U - Humidifier - Google Patents
Humidifier Download PDFInfo
- Publication number
- CN210425396U CN210425396U CN201921125980.2U CN201921125980U CN210425396U CN 210425396 U CN210425396 U CN 210425396U CN 201921125980 U CN201921125980 U CN 201921125980U CN 210425396 U CN210425396 U CN 210425396U
- Authority
- CN
- China
- Prior art keywords
- water
- heating
- float switch
- humidifier
- heating box
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Air Humidification (AREA)
Abstract
The utility model relates to the field of air humidification, in particular to a humidifier, which comprises a heating box, wherein a water inlet valve is arranged on the heating box; the heating box is internally provided with a heating element, a low water level float switch, a water replenishing float switch and a high water level float switch. The humidifier also comprises a controller, the controller is connected with each floating ball switch, and the controller controls the opening and closing of the water inlet valve and the closing of the heating rod according to water level signals monitored by each floating ball switch. The low-water-level float switch, the water replenishing float switch and the high-water-level float switch are used for monitoring the water levels in different conditions respectively, and the controller is used for controlling the opening and closing of the water inlet valve and the closing of the heating rod according to the monitored water levels, so that the condition that too little water in the heating box is burnt or too much water overflows can be effectively prevented. Meanwhile, even if the low water level float switch is damaged or the high water level float switch is damaged, the humidifier can also close the heating element or close the drain valve, so that the situation that too little water is dried or too much water overflows is prevented.
Description
Technical Field
The utility model relates to an air humidification field, concretely relates to add hot type humidifier.
Background
The humidifier is a device for increasing air humidity, and can be divided into an ultrasonic humidifier and a heating humidifier according to different structures. The existing heating type humidifier comprises a heating box for storing water and a heating element positioned in the heating box, wherein the heating type humidifier heats the water in the heating box through the heating element, the boiled water generates steam, and the steam moves to a designated position through a steam outlet; the heating humidifier increases the humidity of air by steam containing a large amount of moisture.
When a heating type humidifier is used, a dry-fire phenomenon is likely to occur when the amount of water in the humidifier is too small, and an overflow phenomenon is likely to occur when the amount of water in the humidifier is too large.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims at providing a humidifier, the problem that aims at solving is: how to prevent dry burning and overflow when using a heating type humidifier.
In order to solve the problems, the utility model provides a humidifier, which comprises a heating box, wherein a water inlet valve is arranged on a water inlet component of the heating box; and a heating element is arranged in the heating box. The humidifier also comprises a controller, and a low-water-level float switch, a water replenishing float switch and a high-water-level float switch are sequentially arranged in the heating box from low to high; the low water level float switch, the water replenishing float switch and the high water level float switch are all connected with the controller, and the controller is also connected with the water inlet valve and the heating element respectively. The controller is configured to: when a first low water level signal monitored by the low water level float switch is received or any signal of the low water level float switch is not received, the heating element is controlled to be closed; controlling the water inlet valve to open when a second low water level signal monitored by the water replenishing floating ball switch is received; controlling the water inlet valve to be closed when a second high water level signal monitored by the water replenishing floating ball switch is received; and controlling the water inlet valve to be closed when a third high water level signal monitored by the high water level float switch is received.
Preferably, the water inlet assembly comprises a water replenishing port arranged on the heating box and a water inlet pipe communicated with the water replenishing port, wherein a rotor flow meter is arranged on the water inlet pipe and is used for monitoring the flow velocity of water flow in the water inlet pipe.
Preferably, a liquid level meter is further arranged in the heating box and connected with a display device.
Preferably, an anti-dry heating temperature sensor is further arranged in the heating box and attached to a heating rod of the heating element; the dry burning prevention temperature sensor is also connected with a controller, and the controller controls the heating element to be closed according to a temperature signal monitored by the dry burning prevention temperature sensor.
Preferably, a water temperature sensor is further arranged in the heating box, and the water temperature sensor is connected with a display device.
Preferably, the heating box is also connected with an overflow pipe.
Preferably, the lower part of the heating box is also provided with a drainage ball valve, and the drainage ball valve is used for draining water in the heating box.
Preferably, a partition plate is arranged in the heating box and divides the heating box into a cold water cavity and a hot water cavity; the heating element is installed in the hot water cavity, and the lower part of the cold water cavity is communicated with the lower part of the hot water cavity.
Preferably, still be provided with the access hole on the heating cabinet, install on the access hole and be used for sealing the apron of access hole, the apron with be provided with the sealing washer between the access hole.
Preferably, the heating box is further covered with a protective cover, and a circuit connector lug of the heating element is positioned in the protective cover.
The utility model provides an among the technical scheme, be provided with three float switch in the heating cabinet of humidifier, three float switch is low water level float switch, moisturizing float switch and high water level float switch respectively.
When the humidifier is used specifically, the controller in the humidifier controls the heating element to be closed through a first low water level signal monitored by the low water level float switch, and the heating element is closed when the water level reaches a preset value. The dry burning can be predicted in advance through the low water level float switch, and the dry burning is prevented. Meanwhile, when the low water level float switch is damaged, any signal cannot be sent, and when the controller cannot receive any signal of the low water level float switch, the heating element is closed by the controller according to a preset rule, so that dry burning is prevented.
The controller in the humidifier controls the water inlet valve to be opened and closed respectively according to a second low water level signal and a second high water level signal monitored by the water replenishing floating ball switch, so that the water level in the heating box can be maintained within a certain range, and the situations of dry burning or excessive overflow of water when the water in the heating box is too little are prevented.
And the controller in the humidifier controls the water inlet valve to be closed according to a third high water level signal monitored by the high water level float switch. When the water replenishing float switch is damaged, the water replenishing float switch cannot send a signal, and the liquid level can continuously rise when the heating box is always in a water replenishing state; at the moment, the controller can close the water inlet valve according to a water level signal monitored by the high water level float switch, so that excessive overflow of water in the heating box is prevented.
In conclusion, the low-water-level float switch, the water replenishing float switch and the high-water-level float switch are used for monitoring the water level of the heating box under different conditions respectively, so that the situations that the water in the heating box is too little and is dried up or the water is too much and overflows can be effectively prevented. Meanwhile, even if the low water level float switch is damaged or the high water level float switch is damaged, the humidifier can also close the heating element or close the water inlet valve through the controller, and the situations that the water is too little dried to burn or the water is too much to overflow are prevented.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic perspective view of a humidifier according to an embodiment of the present invention.
Fig. 2 is a schematic perspective view ii of the humidifier according to the embodiment of the present invention.
Fig. 3 is a schematic perspective view iii of a humidifier according to an embodiment of the present invention.
Fig. 4 is a schematic perspective view of a part of components of the humidifier according to the embodiment of the present invention.
Fig. 5 is a schematic perspective view ii of a part of components of the humidifier according to the embodiment of the present invention.
Fig. 6 is a schematic perspective view iii of a part of components of a humidifier according to an embodiment of the present invention.
Fig. 7 is a schematic perspective view of a seal ring according to an embodiment of the present invention.
Fig. 8 is a schematic perspective view of a cover plate according to an embodiment of the present invention.
FIG. 9 is a schematic perspective view of the partition plate, the liquid level gauge connecting pipe, the liquid level gauge, and the second steel joint assembly according to the embodiment of the present invention
Fig. 10 is a schematic perspective view of a water inlet assembly according to an embodiment of the present invention.
Fig. 11 is an enlarged schematic perspective view of each float switch according to an embodiment of the present invention.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 1 | Supporting seat of |
14 | Second |
| 2 | |
15 | |
| 3 | |
16 | Dry burning prevention temperature sensor |
| 4 | |
17 | |
| 5 | |
18 | Low water |
| 6 | Liquid level |
19 | Water replenishing |
| 7 | |
20 | High water level float switch |
| 8 | Double external tooth |
21 | Rotor flow meter |
| 9 | Stainless |
22 | |
| 10 | |
23 | |
| 11 | |
24 | |
| 12 | First |
25 | |
| 13 | |
26 | Water replenishing port |
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 efforts belong to the protection scope of the present invention.
It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In addition, the technical solutions between the embodiments of the present invention can be combined with each other, but it is necessary to be able to be realized by a person having ordinary skill in the art as a basis, and when the technical solutions are contradictory or cannot be realized, the combination of such technical solutions should be considered to be absent, and is not within the protection scope of the present invention.
As shown in fig. 1, 2, 3, 4, 5, 6 and 11, the present embodiment provides a humidifier, which includes a heating box 24, wherein a water inlet valve 13 is disposed on a water inlet assembly of the heating box 24; heating elements are arranged in the heating box 24. The humidifier also comprises a controller, and a low-water-level float switch 18, a water replenishing float switch 19 and a high-water-level float switch 20 are sequentially arranged in the heating box 24 from low to high; the low water level float switch 18, the water replenishing float switch 19 and the high water level float switch 20 are all connected with the controller, and the controller is also respectively connected with the water inlet valve 13 and the heating element. The controller is configured to: when a first low water level signal monitored by the low water level float switch 18 is received or any signal of the low water level float switch 18 is not received, the heating element is controlled to be closed; when a second low water level signal monitored by the water replenishing floating ball switch 19 is received, the water inlet valve 13 is controlled to be opened; when a second high water level signal monitored by the water replenishing float switch 19 is received, the water inlet valve 13 is controlled to be closed; and controlling the water inlet valve 13 to be closed when a third high water level signal monitored by the high water level float switch 20 is received.
In the technical scheme provided in this embodiment, three float switches are provided in the heating box 24 of the humidifier, and the three float switches are a low water level float switch 18, a water replenishing float switch 19 and a high water level float switch 20, respectively. The controller in the humidifier controls the water inlet valve 13 and the heating element according to each float switch, and the control process can be controlled by a program or can be directly controlled by an electric signal sent by the float switch.
When the water inlet valve 13 and the heating member are directly controlled by the electric signal sent by the float switches, each float switch can be set as: when the low water level float switch 18 is positioned at a relative high water level, a heating element starting electric signal is sent out to start the heating element; when the water level is low or no signal is provided, the heating element cannot be opened. When the water replenishing floating ball switch 19 is positioned at a relatively low water level, an electric signal for opening the water inlet valve 13 is sent out, and the water inlet valve 13 is opened; when the water replenishing float switch 19 is positioned at a relatively high water level, sending an electric signal for closing the water inlet valve 13 and closing the water inlet valve 13; for the control, the water inlet valve 13 is a solenoid valve. When the high water level float switch 20 is located at a relatively high water level, an electric signal for closing the water inlet valve 13 is sent out, and the water inlet valve 13 is closed; in a specific circuit connection, the high water level float switch 20 should be connected in series with the water replenishing float switch 19, and when any one of the water replenishing float switch 19 and the high water level float switch 20 sends an electric signal for closing the water inlet valve 13, the water inlet valve 13 should be closed.
In this embodiment, the controller in the humidifier controls the heating element to be turned off through the first low water level signal monitored by the low water level float switch 18, and turns off the heating element when the water level reaches the preset value, so that the low water level float switch 18 can predict dry burning in advance to prevent the dry burning. Meanwhile, when the low water level float switch 18 is damaged, the first low water level signal, the first high water level signal or any other signal cannot be sent out, and at the moment, the heating element is turned off by the controller according to a preset rule, so that dry burning is prevented. The controller in the humidifier controls the water inlet valve 13 to be opened and closed respectively according to the second low water level signal and the second high water level signal monitored by the water replenishing float switch 19, so that the water level in the heating box 24 can be maintained within a certain range, and the heating box 24 is prevented from being dried and burnt when the water is too little or overflowing when the water is too much. The controller in the humidifier controls the water inlet valve 13 to be closed according to a third high water level signal monitored by the high water level float switch 20; when the water replenishing float switch 19 is damaged, the water replenishing float switch 19 cannot send a signal, and the liquid level in the heating box 24 continuously rises when the heating box 24 is always in a water replenishing state; at this time, the controller can close the water inlet valve 13 according to the water level signal monitored by the high water level float switch 20, so as to prevent the water in the heating box 24 from overflowing too much.
Further, as shown in fig. 10, the water inlet assembly includes a water replenishing port 26 provided on the heating box 24 and a water inlet pipe communicated with the water replenishing port 26, the water inlet pipe is provided with a rotameter 21, and the rotameter 21 is configured to monitor a flow rate of water in the water inlet pipe. In this embodiment, the water inlet valve 13 is installed on the water inlet pipe, and the rotameter 21 is installed on the water inlet pipe section between the water inlet valve 13 and the heating box 24.
Further, as shown in fig. 9, a liquid level meter 7 is further disposed in the heating box 24, and a display device is connected to the liquid level meter 7. The liquid level meter 7 is used for monitoring the water level in the heating box 24, so that a user can conveniently and visually know the water amount in the heating box 24; for ease of viewing, a display device for displaying the water level may be provided on the housing of the humidifier.
Further, as shown in fig. 6, an anti-dry heating temperature sensor 16 is further disposed in the heating box 24, and the anti-dry heating temperature sensor 16 is attached to the heating rod 15 of the heating element; the dry-heating prevention temperature sensor 16 is also connected with a controller, and the controller controls the heating element to be closed according to a temperature signal monitored by the dry-heating prevention temperature sensor 16. Since the dry-heating prevention temperature sensor 16 is used to monitor the temperature of the heating rod 15, in this embodiment, the dry-heating prevention temperature sensor 16 should be attached to the heating rod 15, and when the temperature of the heating rod 15 is higher than a set threshold, it is predicted that the heating rod 15 is not in water and the heating rod 15 is in a dry-heating state. In the present embodiment, although the dry-heating prevention temperature sensor 16 predicts a certain delay of dry-heating, when the water level switch generated by each float switch has an error, the controller can turn off the heating rod 15 according to the temperature signal monitored by the dry-heating prevention temperature sensor 16 to prevent the heating rod 15 from continuing dry-heating.
Further, as shown in fig. 6, a water temperature sensor 17 is further disposed in the heating tank 24, and the water temperature sensor 17 is connected to a display device. The water temperature sensor 17 and the display device are provided to allow the user to visually obtain the water temperature in the heating box 24, and in this embodiment, the water temperature sensor 17 should not be attached to the heating rod 15. To facilitate viewing of the water temperature, a display for displaying the water temperature may be provided on the housing of the humidifier.
Further, as shown in fig. 2 to 6, an overflow pipe 5 is connected to the heating tank 24. When the float switches work abnormally and water in the heating box 24 is excessive, redundant water can be discharged through the overflow pipe 5, the overflow pipe 5 can be in an inverted U shape, one end of the overflow pipe 5 extends into the heating box 24, the other end of the overflow pipe extends out of the heating box 24, and the height of the end extending out of the heating box 24 is higher than the lowest water level of the heating box 24 which is not burnt and lower than the highest water level of the heating box 24. The overflow pipe 5 can also be arranged: the lower part or bottom of the heating tank 24 is provided with an overflow port, which in this embodiment is opened on the section of the water inlet pipe between the water inlet valve 13 and the heating tank 24, the lower end of the overflow pipe 5 is communicated with the heating tank 24 through the overflow port, and the upper end of the overflow pipe 5 extends to a storage device for collecting excess water.
Further, as shown in fig. 3, 5 and 6, a drain ball valve 11 is further disposed at a lower portion of the heating tank 24, and the drain ball valve 11 is used for draining water in the heating tank 24. The drain ball valve 11 is arranged at the lower part of the heating box 24, and when the water in the heating box 24 needs to be emptied, the drain ball valve 11 at the lower part of the heating box 24 can be opened, so that the water in the heating box 24 is drained through the drain ball valve 11.
Further, as shown in fig. 4 and 5, a partition plate 22 is disposed in the heating tank 24, and the partition plate 22 divides the heating tank 24 into a cold water chamber and a hot water chamber; the heating element is installed in the hot water cavity, and the lower part of the cold water cavity is communicated with the lower part of the hot water cavity. In this embodiment, the above-mentioned heating box 24 can be provided with the baffle 22, separate the heating box 24 into cold water chamber and hot water chamber through the baffle 22, when newly adding cold water, cold water enters into the cold water chamber first, compare with adding cold water to the hot water chamber directly, can not violent change the hot water temperature in the hot water chamber, the humidity of steam also can not splash out the splash in the hot water chamber, the speed that the humidifier produced steam and the temperature humidity fluctuation range of the steam that produces are less.
Further, as shown in fig. 1 to 5, an access hole is further formed in the heating box 24, a cover plate 2 used for sealing the access hole is installed on the access hole, and a sealing ring 3 is arranged between the cover plate 2 and the access hole. The arrangement of the cover plate 2 is convenient for a user to operate the components in the heating box 24 when the humidifier is maintained, and the sealing ring 3 plays a role in sealing and prevents steam generated in the heating box 24 from flowing out from the gap between the cover plate 2 and the access hole.
Further, as shown in fig. 1, the heating box 24 is covered with a protective cover 23, the protective cover 23 and the outer wall of the heating box 24 define a cavity, and the circuit terminal of the heating element is located in the cavity. In this embodiment, the protective cover 23 is hinged to the heating box 24, so that the user can open the protective cover 23 as required to inspect, maintain or repair the circuit terminals in the protective cover 23.
The above only be the preferred embodiment of the utility model discloses a not consequently restriction the utility model discloses a patent range, all are in the utility model discloses a conceive, utilize the equivalent structure transform of what the content was done in the description and the attached drawing, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.
Claims (10)
1. A humidifier comprises a heating box, wherein a water inlet valve is arranged on a water inlet assembly of the heating box; the heating box is internally provided with a heating element and is characterized in that,
the humidifier also comprises a controller, and a low-water-level float switch, a water replenishing float switch and a high-water-level float switch are sequentially arranged in the heating box from low to high; the low water level float switch, the water replenishing float switch and the high water level float switch are all connected with the controller, and the controller is also connected with the water inlet valve and the heating element respectively;
the controller is configured to:
when a first low water level signal monitored by the low water level float switch is received or any signal of the low water level float switch is not received, the heating element is controlled to be closed;
controlling the water inlet valve to open when a second low water level signal monitored by the water replenishing floating ball switch is received; controlling the water inlet valve to be closed when a second high water level signal monitored by the water replenishing floating ball switch is received;
and controlling the water inlet valve to be closed when a third high water level signal monitored by the high water level float switch is received.
2. The humidifier of claim 1,
the water inlet assembly comprises a water replenishing port arranged on the heating box and a water inlet pipe communicated with the water replenishing port, a rotor flow meter is arranged on the water inlet pipe, and the rotor flow meter is used for monitoring the flow velocity of water flow in the water inlet pipe.
3. The humidifier of claim 1,
still be provided with the level gauge in the heating cabinet, the level gauge is connected with display device.
4. The humidifier of claim 1,
the heating box is also internally provided with an anti-dry heating temperature sensor which is attached to a heating rod of the heating element; the dry burning prevention temperature sensor is also connected with a controller, and the controller controls the heating element to be closed according to a temperature signal monitored by the dry burning prevention temperature sensor.
5. The humidifier of claim 1,
and a water temperature sensor is also arranged in the heating box and is connected with a display device.
6. The humidifier of claim 1,
the heating box is also connected with an overflow pipe.
7. The humidifier of claim 1,
the lower part of the heating box is also provided with a drainage ball valve which is used for draining water in the heating box.
8. The humidifier of claim 1,
a partition plate is arranged in the heating box and divides the heating box into a cold water cavity and a hot water cavity; the heating element is installed in the hot water cavity, and the lower part of the cold water cavity is communicated with the lower part of the hot water cavity.
9. The humidifier of claim 1,
still be provided with the access hole on the heating cabinet, install on the access hole and be used for sealing the apron of access hole, the apron with be provided with the sealing washer between the access hole.
10. The humidifier of claim 1,
the heating box is further covered with a protective cover, and a circuit connector lug of the heating element is positioned in the protective cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921125980.2U CN210425396U (en) | 2019-07-17 | 2019-07-17 | Humidifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921125980.2U CN210425396U (en) | 2019-07-17 | 2019-07-17 | Humidifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210425396U true CN210425396U (en) | 2020-04-28 |
Family
ID=70381378
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921125980.2U Expired - Fee Related CN210425396U (en) | 2019-07-17 | 2019-07-17 | Humidifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210425396U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111717551A (en) * | 2020-06-23 | 2020-09-29 | 美巢集团股份公司 | Discharging equipment and humidifying device thereof |
| CN112212433A (en) * | 2020-09-22 | 2021-01-12 | 苏州英维克温控技术有限公司 | Humidifier control method and humidifier |
| CN112665126A (en) * | 2020-12-16 | 2021-04-16 | 珠海格力电器股份有限公司 | Control method and device of humidification system and humidification system |
| CN112762541A (en) * | 2020-12-28 | 2021-05-07 | 珠海格力电器股份有限公司 | Heating structure and device with same |
-
2019
- 2019-07-17 CN CN201921125980.2U patent/CN210425396U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111717551A (en) * | 2020-06-23 | 2020-09-29 | 美巢集团股份公司 | Discharging equipment and humidifying device thereof |
| CN111717551B (en) * | 2020-06-23 | 2022-05-17 | 美巢集团股份公司 | Discharging equipment and humidifying device thereof |
| CN112212433A (en) * | 2020-09-22 | 2021-01-12 | 苏州英维克温控技术有限公司 | Humidifier control method and humidifier |
| CN112665126A (en) * | 2020-12-16 | 2021-04-16 | 珠海格力电器股份有限公司 | Control method and device of humidification system and humidification system |
| CN112762541A (en) * | 2020-12-28 | 2021-05-07 | 珠海格力电器股份有限公司 | Heating structure and device with same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210425396U (en) | Humidifier | |
| US20140145359A1 (en) | Humidifier with scale collection features | |
| US6035699A (en) | Water leakage detection apparatus | |
| US9004461B2 (en) | Humidifier with field-replacement components | |
| EP3904763A1 (en) | Steam generation device and air conditioning device | |
| CN216321993U (en) | Constant temperature and humidity test box equipment | |
| CN210831920U (en) | Steam generator and evaporator | |
| CN209474395U (en) | A kind of water purifier | |
| US6119951A (en) | Expansion control for a closed fluid circulation system | |
| CN213580938U (en) | Concatenation equipment inside lining bag formula galvanized water tank | |
| CN111722649B (en) | Humidification water charging system and environmental test case | |
| EP4354025A1 (en) | Wet-bulb-sensor-device for domestic oven | |
| CN114370706A (en) | Condensing water heater, condensing heat exchange device and condensate water blockage detection method | |
| CN210077374U (en) | Electric steaming furnace liquid level controller and electric steaming furnace | |
| CN220624420U (en) | Drainage collection device | |
| CN216814641U (en) | Smoke leakage prevention water seal device and gas heating water heater | |
| CN219346791U (en) | Condensate water collecting structure and gas water heating equipment | |
| CN210030124U (en) | Pipeline machine and water purifier | |
| CN215982993U (en) | Humidifying device | |
| US3485266A (en) | Combined vent and overflow means for an enclosed fluid containing vessel | |
| CN210924309U (en) | Constant temperature and humidity control system | |
| CN216816406U (en) | Constant temperature and humidity machine | |
| CN208765240U (en) | A kind of leak is cut off the water supply gas instantaneous water heater | |
| CN220601677U (en) | Drainage structures and air conditioning case of negative pressure air conditioning case functional segment humidifier | |
| CN213663075U (en) | Constant-temperature drinking water equipment for cattle farm |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200428 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |