CN116409561A - Buried box system with intelligent environmental control - Google Patents

Abstract

Buried box system with intelligent environmental control, comprising: humidity control equipment, at least one combustible gas sensor and new trend equipment. The humidity control device is disposed inside the system and includes: at least one humidity sensor for sensing the humidity of the air inside the system and at least one heating module, wherein the heating module starts to work to heat the air inside the system when the humidity of the air inside the system reaches a preset humidity threshold value. The at least one combustible gas sensor is configured to sense a combustible gas concentration inside the system. The fresh air equipment comprises a fan arranged in the system and an air inlet and an air outlet which are communicated with the internal space and the external environment of the system. When at least one humidity sensor senses that the humidity of the air in the system reaches a humidity threshold value and/or when at least one combustible gas sensor senses that the concentration of the combustible gas in the system reaches a concentration threshold value, the fan is started to increase circulation of the air in the system to the external environment through the air outlet.

Description

Buried box system with intelligent environmental control

Technical Field

The invention relates to the field of underground boxes, in particular to an underground box system with intelligent environment control.

Background

Buried boxes have been widely used in the field of storage of objects such as sanitation garbage. Generally, the buried box includes a top wall, a bottom wall, and a plurality of side walls, with an openable top cover disposed in the top wall to enclose the filler inside the buried box. In use, the buried box is buried under the ground, leaving the top wall exposed to the external environment. In order to enhance ventilation of the buried box, an unpowered air ball scheme has been developed in which an unpowered air ball device including a turbine is mounted on a top cover of the buried box, and air heat convection is caused by natural wind and a temperature difference between the inside and the outside of the box to push the turbine to rotate, so that stale or humid air in the box is discharged by centrifugal force and negative pressure effect.

However, the conventional unpowered air ball scheme is weak in air exhaust amount, so that air in the relatively closed inner space of the underground box is poor in circulation. When the box is at an ambient temperature below the dew point temperature, condensed water is generated in the box and the humidity of the air inside the box is increased, and such humid environment can cause corrosion of the metal structural members in the box and failure of the electrical equipment, thereby shortening the service life of the buried box equipment. On the other hand, if the cleaning of the organic matters in the box body is not timely under the condition of poor air circulation, combustible gas, such as methane, can be generated due to anoxic or anaerobic environment to form a invisible carbon source, so that potential safety hazards are caused to electric equipment in the box body.

Therefore, there is a need for a buried box system that effectively avoids excessive air humidity and flammable gas concentrations within the box.

Disclosure of Invention

In order to solve the problems existing in the prior art in the aspects of controlling the air humidity and the concentration of combustible gas in the internal environment, the invention provides a buried box system with intelligent environment control. By utilizing the buried box system, the real-time sensing of the air humidity and the combustible gas concentration in the buried box system is realized, and the processing of reducing the air humidity and/or the combustible gas concentration is automatically carried out when required, so that the internal environment of the buried box system is kept dry all the time, and the risks of corrosion of a metal structural part and failure of an electrical element and the risks of potential fire hazards and potential safety hazards of the electrical element are reduced.

A buried box system according to one embodiment of the present invention includes a top wall, a bottom wall, and a plurality of side walls, with the top wall, the bottom wall, and the plurality of side walls bounding an interior space of the buried box system. The underground box system further comprises humidity control equipment, at least one combustible gas sensor and fresh air equipment.

The humidity control device is arranged inside the system and comprises at least one humidity sensor sensing the humidity of the air inside the system and at least one heating module. The heating module begins to work to heat the air inside the system when the humidity of the air inside the system reaches a preset humidity threshold. The at least one combustible gas sensor is configured to sense a combustible gas concentration inside the system. The fresh air equipment comprises a fan arranged in the system and an air inlet and an air outlet which are communicated with the internal space and the external environment of the system. When at least one humidity sensor senses that the air humidity in the system reaches a preset humidity threshold value and/or when at least one combustible gas sensor senses that the concentration of the combustible gas in the system reaches a preset concentration threshold value, the fan is started to increase the circulation of the air in the system to the external environment through the air outlet, so that the air humidity in the system is further reduced, and the concentration of the combustible gas in the system is reduced.

The air inlet is closed by the air inlet cover during normal operation of the system, and before the fan is started, the opening state of the air inlet is determined, and the air inlet cover is opened to open the air inlet only under the condition that the air inlet can be determined to be opened.

Optionally, in the event that it is determined that the air intake is openable, an actuator connected between the air intake cover and an inner wall of the system is triggered to actuate the air intake cover to open to the external environment to open the air intake.

Optionally, the air inlet is disposed on the top wall adjacent the side wall and the air outlet is disposed on the top cover.

Optionally, the fan is attached to the top cover by a mounting bracket. And optionally, at least one humidity sensor and at least one combustible gas sensor are attached to the mounting bracket.

Optionally, at least one heating module is attached to the inside of the side wall adjacent the bottom wall.

Optionally, two or more humidity sensors, two or more combustible gas sensors, and two or more heating modules are respectively arranged at different positions inside the underground cabinet system, and the start of the fresh air device is triggered as long as one of the humidity sensors senses that the air humidity inside the underground cabinet system reaches a preset humidity threshold and/or one of the combustible gas sensors senses that the combustible gas concentration inside the underground cabinet system reaches a preset concentration threshold.

Optionally, the buried box system further comprises at least one temperature sensor configured to sense a temperature of the at least one heating module or sense an air temperature inside the buried box system, and when the temperature sensed by the at least one temperature sensor reaches a preset temperature threshold, the heating module stops working.

Optionally, the fan has at least two air supply intensities, and the air supply intensity of the fan at the start-up of the fresh air device is determined according to one or a combination of the following factors: the size of the system, the air humidity value inside the system sensed by the at least one humidity sensor, the combustible gas concentration value inside the system sensed by the at least one combustible gas sensor, and the open state of the air inlet.

Drawings

FIG. 1 illustrates a side view of a buried box system with intelligent environmental control, according to one embodiment of the present invention;

FIG. 2 shows a perspective view of the buried box system as seen along arrow A-A in FIG. 1;

FIG. 3 shows a top view of the buried box system as seen along arrow B in FIG. 1;

FIG. 4 shows a perspective view of the internal construction of the buried box system seen with one side wall of the buried box system removed according to one embodiment of the present invention;

FIG. 5 shows a perspective view of the internal construction of the buried box system from a different perspective than FIG. 4 with one side wall of the buried box system removed according to one embodiment of the present invention; and

FIG. 6 illustrates a flow chart of the operation of the buried box system according to one embodiment of the present invention.

List of reference numerals

100. Buried box system

101. Top wall

102. Side wall

103. Bottom wall

104. Top cover

105. Wiring hole

110. Humidity control apparatus

111. Humidity sensor

112. Heating module

120. Combustible gas sensor

130. Fresh air equipment

131. Blower fan

132. Air inlet

133. Air outlet

134. Inlet port cover

135. Actuator with a spring

136. Mounting bracket

Detailed Description

Preferred embodiments of the buried box system with intelligent environmental control according to the present invention will be described in detail below with reference to the accompanying drawings.

Fig. 1 shows a side view of a buried box system 100 with intelligent environmental control according to one embodiment of the present invention, and fig. 2 and 3 show perspective and top views of the buried box system 100, as seen from arrows A-A and B in fig. 1, respectively. Referring to fig. 1-3, the buried box system 100 includes a top wall 101, a number of side walls 102 (e.g., four side walls 102), and a bottom wall 103 that circumscribes an interior space of the buried box system 100. 1-3 also illustrate that the top wall 101 of the inground box system 100 includes an openable and closable top cover 104, the top cover 104 being positioned, for example, in the center of the top wall 101, through which top cover 104 objects to be stored can be filled into or removed from the inground box system 100, and through which equipment and wiring in the interior space of the inground box system 100 can be observed and maintained.

Fig. 2 also shows that a number of wiring holes 105 are provided through the side wall 102 for wiring of equipment inside the buried box system 100 to the external environment therethrough. The specific routing of equipment within the inground box system 100 to the external environment depends on the location of the placement of the various equipment and is not described in detail herein.

Referring to fig. 2, the buried box system 100 according to this embodiment includes a humidity control apparatus 110, a combustible gas sensor 120, and a fresh air apparatus 130. Wherein the humidity control apparatus 110 includes a humidity sensor 111 and a heating module 112. The humidity sensor 111 is configured to sense the humidity of the air inside the buried box system 100, and since the density of the humid air is smaller than that of the dry air at the same temperature, it is advantageous that the humidity sensor 111 is disposed at the upper portion of the inside space of the buried box system 100, that is, near the top wall 101, because such an arrangement can make it possible to more accurately sense the humidity condition in the air.

In order to avoid the occurrence of condensation in the interior space of the buried box system 100 under the condition of low external environment temperature, which would cause the excessive humidity of the air, thereby causing corrosion of the metal structural members and failure of the electrical components in the interior of the buried box system 100, the humidity control apparatus 110 further comprises a heating module 112. When the humidity sensor 111 senses that the humidity of the air in the buried box system 100 reaches the preset humidity threshold, the heating module 112 is triggered to start to work so as to heat the air in the buried box system 100 to achieve the effect of reducing the humidity of the air. The humidity threshold may be preset and adjusted depending on the type of filler within the buried box system 100. The arrangement of the heating module 112 in the lower part of the interior of the buried box system 100, i.e. adjacent to the bottom wall 103, is advantageous in that this arrangement allows air close to the heating module 112 to be heated first, and then the hot air to rise to promote warming and dehumidification of the air in the upper space, so that the air in the entire interior space is heated rapidly. For example, the heating module 112 is schematically shown in fig. 2 and 5 as being disposed inside the side wall 102 adjacent the bottom wall 103.

The heating module 112 may employ conventional means for heating the air, advantageously a PTC heating module, which has the advantage of power saving and relative safety.

A temperature sensor (not shown) may be further provided in the buried box system 100. The temperature sensor may be attached to the heating module 112 to sense an operating temperature of the heating module 112 and trigger the heating module 112 to stop heating if the operating temperature reaches a preset temperature threshold, thereby further ensuring safety of the operation of the heating module 112.

Alternatively, the temperature sensor may be disposed at other locations in the interior space of the buried box system 100 and configured to sense the temperature of the air inside the buried box system 100. Also in this case, the heating module 112 is triggered to stop heating if the air temperature is sensed to reach a preset temperature threshold. For example, the temperature sensor may be disposed near the humidity sensor 111.

When the humidity sensor 111 senses that the humidity of the air inside the buried box system 100 reaches a preset humidity threshold, the heating module 112 is triggered to heat the air inside the buried box system 100, and the fresh air device 130 is triggered to be started at the same time, so that the humidity of the air inside the buried box system 100 is reduced through the circulation of the air inside the buried box system 100 and the air of the external environment. The specific arrangement and operation of the fresh air device 130 will be described in detail later.

Also shown in fig. 2 is a combustible gas sensor 120 configured to sense the combustible gas concentration inside the inground box system 100. In a buried tank for storing, for example, sanitation waste, the combustible gas that may be produced is primarily referred to as methane. Thus, the combustible gas sensor 120 may be a methane sensor. Since the density of methane is less than that of air, it is advantageous that the combustible gas sensor 120 is disposed in the upper portion of the interior space of the buried box system 100, i.e., near the top wall 101, in the case where it is a methane sensor, because such an arrangement allows it to more accurately sense the concentration of methane in the air.

To avoid the risk of excessive flammable gas concentrations within the inground tank system 100 leading to potential fire and electrical component safety hazards, the flammable gas sensor 120 is configured to trigger further operations to reduce the flammable gas concentration when it is sensed that the flammable gas concentration within the inground tank system 100 reaches a preset concentration threshold.

Specifically, the reduction in the concentration of combustible gas is also achieved by the fresh air device 130. That is, when the humidity sensor 111 senses that the humidity of the air inside the buried box system 100 reaches a preset humidity threshold and/or when the combustible gas sensor 120 senses that the concentration of the combustible gas inside the buried box system 100 reaches a preset concentration threshold, the start of the fresh air device 130 is triggered.

Still referring to FIG. 2, fresh air device 130 includes a blower 131, an air inlet 132, and an air outlet 133. The blower 131 is advantageously attached to the top cover 104 by mounting brackets 136 and is disposed in the interior space of the buried box system 100 below the top cover 104. Since the buried box system 100 has its side walls 102 and bottom wall 103 buried underground during use, the air intakes 132 and outlets 133 of the fresh air device 130 are advantageously provided on the top wall 101 or the top cover 104 to communicate with the interior space and the external environment of the buried box system 100.

Fig. 2 shows that the air outlet 133 is provided on the top cover 104 to the outside space, and the air inlet 132 is provided on the top wall 101 adjacent to the side wall 102. Positioning the air intake 132 as far as possible from the air outlet 133 is advantageous because this arrangement increases the path through which air within the buried box system 100 circulates, thereby increasing the exchange of air within the buried box system 100 with outside ambient air. The air intake 132 is closed during normal operation of the buried box system 100, but may be opened if desired. Specifically, an intake cover 134 is provided at the intake 132 that can open and close the intake 132, and an actuator 135 is connected between the intake cover 134 and the inside of a wall, such as a side wall, of the buried box system 100, whereby movement of the intake cover 134 is controlled by movement of the actuator 135 to open and close the intake 132. The actuator 135 is shown in fig. 2 in the form of a telescopic rod, but it may also be other actuators.

When the humidity sensor 111 senses that the humidity of the air inside the underground cabinet system 100 reaches a preset humidity threshold and/or when the combustible gas sensor 120 senses that the concentration of the combustible gas inside the underground cabinet system 100 reaches a preset concentration threshold, the fan 131 of the fresh air device 130 is triggered to start so as to pump the air inside the underground cabinet system 100 to the external environment through the air outlet 133, thereby further reducing the humidity of the air inside the underground cabinet system 100 and reducing the concentration of the combustible gas.

Before the fan 131 is started, a determination of the opening state of the air intake 132 is advantageously made, which is done by an infrared sensor (not shown in the figures) arranged near the air intake 132, for example on the top wall 101, in the external environment. Since opening of the intake vent 132 requires the actuator 135 to actuate the intake vent cover 134 to open to the outside environment, it may happen that in the case where the buried box system 100 is buried under the ground, there is a possibility that an interfering object exists outside the intake vent cover 134 and cannot normally open to the outside environment, and if the actuator 135 is triggered to actuate the intake vent cover 134 to open to the outside environment once the blower 131 is started, it may happen that the intake vent cover 134 cannot normally open or even forcibly open to cause damage to the intake vent cover 134 or the actuator 135 or the outside object.

Sensing the ambient environment of the air intake 132 by an infrared sensor prior to opening the air intake 132 to determine whether the air intake 132 can be opened normally avoids the potential risk of damaging the air intake cover 134 or the actuator 135 or an external object as described above. If it is determined by the infrared sensor that the surrounding environment of the intake vent 132 is free of interfering objects and can be normally opened, the trigger actuator 135 actuates the intake vent cover 134 to open to the outside environment. In this case, the activation of the blower 131 causes air in the external environment to flow into the inside of the buried box system 100 through the air inlet 132, and air in the inside of the buried box system 100 flows into the external environment through the air outlet 133, thereby achieving the effect of reducing the air humidity and the concentration of combustible gas in the inside of the buried box system 100 through the exchange of the inside and outside air.

On the other hand, if it is determined by the infrared sensor that there is a disturbing object around the periphery of the air intake 132 and it is not normally opened, the actuator 135 is not triggered to actuate the opening of the air intake cover 134 to the outside environment. In this case, the activation of the blower 131 still causes the internal air of the buried box system 100 to flow to the outside environment through the air outlet 133, thereby somewhat reducing the air humidity and the combustible gas concentration inside the buried box system 100, but the air circulation rate is lower in this case as compared with the case where the air inlet 132 is opened, and the air humidity and the combustible gas concentration inside the buried box system 100 are also reduced at a relatively lower rate.

Advantageously, the blower 131 has at least two blower strengths. The air supply intensity of the blower 131 when the fresh air device 130 is started is determined according to one or a combination of the following factors: the size of the buried box in actual use, the sensed humidity value and combustible gas concentration value of the air inside the buried box system 100, and the open state of the air intake 132. Specifically, in the case where the size of the actual use of the buried box is small, the sensed air humidity value and/or the combustible gas concentration value inside the buried box system 100 reaches the preset humidity threshold and/or concentration threshold but exceeds the corresponding threshold by a small amount, and the air intake 132 can be normally opened, the blower 131 may be set to employ a low blowing air intensity. Conversely, in the case where the size of the buried box actually used is large, the magnitude of the sensed air humidity value and/or combustible gas concentration value inside the buried box system 100 exceeds the preset humidity threshold value and/or concentration threshold value is large, and the air intake 132 cannot be normally opened, the blower 131 may be set to employ a high blower strength, thereby increasing the rate of reducing the air humidity and the combustible gas concentration inside the buried box system 100. The blower 131 may have three, four or even more different blower strengths depending on the actual requirements.

In addition, although only one humidity sensor 111, one flammable gas sensor 120, and one heating module 112 are shown in the drawings, more than one humidity sensor 111, more than one flammable gas sensor 120, and more than one heating module 112 may be provided depending on factors such as the size of the actual buried box, the arrangement of the filler inside the buried box, and the like. Specifically, two or more humidity sensors 111, combustible gas sensors 120, and heating modules 112 may each be disposed at different locations inside the buried box system 100, and activate at least one heating module 112 and/or fresh air device 130 as soon as one of the humidity sensors 111 senses that the air humidity inside the buried box system 100 reaches a preset humidity threshold and/or one of the combustible gas sensors 120 senses that the combustible gas concentration inside the buried box system 100 reaches a preset concentration threshold.

Also, more than one temperature sensor may be provided. Specifically, one temperature sensor may be provided at the heating module 112 to sense the temperature of the heating module 112, while another temperature sensor may be provided at other locations to sense the air temperature inside the buried box system 100, and the heating module 112 may be stopped as soon as the temperature sensed by one of the temperature sensors reaches its preset temperature threshold.

Fig. 4 and 5 show perspective views of the internal construction of the buried box system 100 from different perspectives with one side wall of the buried box system 100 removed, respectively. Fig. 4 shows more details of the blower 131. In this embodiment, the blower 131 is attached to the top cover 101 by a mounting bracket 136. At least one humidity sensor 111, at least one combustible gas sensor 120, and at least one temperature sensor may also be attached to the top cover 101 by the mounting bracket 136. This arrangement simplifies the wiring design on the one hand and facilitates the observation and maintenance of the internal equipment on the other hand, since the top cover 101 can be easily opened from the outside.

The flow of operation of the inground box system 100 with intelligent environmental control according to the present invention is described below in conjunction with fig. 6:

first, the system 100 is powered on, the at least one humidity sensor 111 senses the air humidity inside the buried box system 100, and the at least one flammable gas sensor 120 senses the flammable gas concentration inside the buried box system 100;

if at least one humidity sensor 111 senses that the humidity of the air in the underground cabinet system 100 reaches a preset humidity threshold, triggering the heating module 112 to work and triggering the infrared sensor to detect the air inlet 132 to determine whether the air inlet 132 can be normally opened, and heating the air in the underground cabinet system 100 by the heating module 112 until at least one temperature sensor senses that the temperature reaches the preset temperature threshold, stopping the heating module 112 from working;

if at least one combustible gas sensor 120 senses that the concentration of the combustible gas in the underground box system 100 reaches a preset concentration threshold value, the infrared sensor is triggered to detect the air inlet 132 to determine whether the air inlet 132 can be normally opened;

if it is determined that the air intake 132 can be normally opened, the trigger actuator 135 actuates the air intake cover 134 to open to the external environment to open the air intake 132, and simultaneously the blower 131 is opened at the determined air supply intensity, and the air inside the buried box system 100 is circulated with the external environment air under the action of the blower 131, so as to further reduce the air humidity inside the buried box system 100 and reduce the concentration of combustible gas inside the buried box system 100;

if it is determined that the air intake 132 cannot be normally opened, the actuator 135 is not triggered to actuate the air intake cover 134 to open to the external environment, the air intake 132 is kept closed, and meanwhile, the blower 131 is opened at the determined air supply intensity, and the internal air of the buried box system 100 is circulated with the external environment air through the air outlet 133 under the action of the blower 131, so as to further reduce the air humidity inside the buried box system 100 and reduce the concentration of combustible gas inside the buried box system 100.

In summary, with the buried box system with intelligent environmental control, the air humidity and the combustible gas concentration in the buried box system can be sensed in real time under the condition that the buried box system is electrified, and when the sensed air humidity and/or the sensed combustible gas concentration reach the preset humidity threshold and/or concentration threshold, the air humidity and/or the combustible gas concentration can be automatically reduced, so that the internal environment of the buried box system is kept dry all the time, and the risks of corrosion of metal structural components and failure of electrical elements in the buried box system and the risks of potential fire and potential safety hazards of electrical elements are reduced.

The above describes in detail a possible but non-limiting embodiment of a buried box system with intelligent environmental control according to the present invention, with the help of the accompanying drawings. Modifications and additions to the techniques and structures, as well as rearrangements of the features of the embodiments, which are apparent to those of ordinary skill in the art without departing from the scope and spirit of the disclosure as set forth and recited in the following claims, are intended to be encompassed within the scope of the invention. Accordingly, such modifications and additions as are contemplated under the teachings of the present invention are intended to be part of this disclosure. The scope of the present disclosure is defined by the claims appended hereto and include known equivalents and equivalents not yet foreseen at the time of filing date of the present disclosure.

Claims (10)

1. A buried box system (100) with intelligent environmental control, comprising:

a humidity control device (110) arranged inside the system (100) and comprising:

at least one humidity sensor (111) configured to sense the humidity of the air inside the system (100), and

at least one heating module (112) that starts to operate to heat the air inside the system (100) when the at least one humidity sensor (111) senses that the humidity of the air inside the system (100) reaches a preset humidity threshold;

at least one combustible gas sensor (120) configured to sense a combustible gas concentration inside the system (100); and

fresh air equipment (130) comprising a fan (131) arranged inside the system (100) and an air inlet (132) and an air outlet (133) communicating the internal space of the system (100) with the external environment,

wherein the blower (131) is activated to increase the circulation of air inside the system (100) through the air outlet (133) to the external environment when the at least one humidity sensor (111) senses that the humidity of the air inside the system (100) reaches the humidity threshold and/or when the at least one combustible gas sensor (120) senses that the concentration of the combustible gas inside the system (100) reaches a preset concentration threshold.

2. The system (100) of claim 1, wherein the air intake (132) is closed by an air intake cover (134) during normal operation of the system (100), and an open state of the air intake (132) is determined prior to starting the blower (131), the air intake cover (134) being opened to open the air intake (132) when it is determined that the air intake (132) is openable.

3. The system (100) of claim 1, wherein the system (100) comprises a top wall (101), a side wall (102), and a bottom wall (103), the top wall (101) comprising an openable and closable top cover (104), the blower (131) being attached to the top cover (104) by a mounting bracket (136).

4. A system (100) according to claim 3, wherein the air inlet (132) is provided on the top wall (101) adjacent to the side wall (102) and the air outlet (133) is provided on the top cover (104).

5. The system (100) of claim 3, wherein the at least one humidity sensor (111) and the at least one combustible gas sensor (120) are attached to the mounting bracket (136).

6. A system (100) according to claim 3, wherein the at least one heating module (112) is attached inside the side wall (102) adjacent to the bottom wall (103).

7. The system (100) according to any one of claims 1 to 6, wherein the fan (131) has at least two supply air intensities.

8. The system (100) of claim 7, wherein the blower (131) blower strength when the blower (131) is activated is determined based on one or a combination of: the size of the system (100), the air humidity value inside the system (100) sensed by the at least one humidity sensor (111), the combustible gas concentration value inside the system (100) sensed by the at least one combustible gas sensor (120), and the open state of the air intake (132).

9. The system (100) according to any one of claims 1 to 6, wherein the system (100) further comprises at least one temperature sensor configured to sense a temperature of the at least one heating module (112), and the at least one heating module (112) is deactivated when the at least one temperature sensor senses that the temperature of the at least one heating module (112) reaches a preset temperature threshold.

10. The system (100) according to any one of claims 1 to 6, wherein the system (100) further comprises at least one temperature sensor configured to sense an air temperature inside the system (100), and the at least one heating module (112) stops working when the at least one temperature sensor senses that the air temperature reaches a preset temperature threshold.

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