CN107092290B - Earthquake monitoring constant temperature station - Google Patents
Earthquake monitoring constant temperature station Download PDFInfo
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- CN107092290B CN107092290B CN201710359872.0A CN201710359872A CN107092290B CN 107092290 B CN107092290 B CN 107092290B CN 201710359872 A CN201710359872 A CN 201710359872A CN 107092290 B CN107092290 B CN 107092290B
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D27/00—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00
- G05D27/02—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00 characterised by the use of electric means
Abstract
The invention discloses a seismic monitoring constant temperature station, which comprises a station chamber, wherein an instrument box body with box body heat exchange tubes is arranged in the station chamber, the box body heat exchange tubes are connected to a box body heat exchange system, and a box body thermometer is arranged on the instrument box body; the constant temperature station further comprises a temperature difference controller and a temperature adjusting system for adjusting the temperature of the instrument box body, the temperature difference controller is in communication connection with the temperature adjusting system, a box body thermometer is in communication connection with the temperature difference controller, and the temperature difference controller controls the temperature adjusting system to be opened and closed. According to the earthquake monitoring constant temperature station, the instrument box body is heated or refrigerated through the box body heat exchange system, when the temperature difference between the temperature of the instrument box body and the temperature set by the box body heat exchange system is monitored by the temperature difference controller to be larger than the temperature difference threshold value, the temperature difference controller controls the temperature adjusting system to be started, the instrument box body is heated or refrigerated for the second time, the temperature in the instrument box body is guaranteed to reach the set temperature value, and the temperature in the instrument box body can be kept constant throughout the year.
Description
Technical Field
The invention belongs to the field of earthquake monitoring, and particularly relates to an earthquake monitoring constant-temperature station.
Background
Experimental research shows that the environment of the earthquake monitoring station has great influence on the monitoring precision of earthquake monitoring instruments, wherein temperature factors are always hot spots concerned by earthquake observers. The influence of temperature on precision measuring instruments such as earthquake monitoring instruments is not negligible, and the influence on the performance of instrument materials, elements and other parameters is ubiquitous. When an earthquake monitoring instrument in an earthquake monitoring station operates, when the external temperature changes rapidly, the internal mechanical structure of a sensor of the monitoring instrument can be influenced to a certain extent, and the problems of zero drift and the like are easily caused. Temperature, humidity, etc. are very important environmental parameters of the earthquake observation station, if the temperature change of the operation environment of the earthquake monitoring instrument is very large and exceeds the normal working temperature range of the earthquake monitoring instrument, the earthquake monitoring instrument can not work normally, so that the recording is interrupted or abnormal, and the stability and consistency of the earthquake monitoring instrument are seriously influenced. Therefore, when the seismic monitoring station is established, the environmental temperature of the seismic monitoring station is strictly required.
Disclosure of Invention
The invention mainly solves the technical problem of providing the earthquake monitoring constant temperature station, which ensures that the temperature of the earthquake monitoring station keeps consistent throughout the year, improves the stability and consistency of earthquake monitoring instruments, improves the monitoring precision of the earthquake monitoring instruments and ensures accurate prediction of the early stage of an earthquake.
In order to solve the technical problems, the invention adopts the technical scheme that: the earthquake monitoring constant temperature station comprises a station chamber, wherein an instrument box body is arranged in the station chamber, a box body heat exchange pipe is coiled on the side wall of the instrument box body and is connected to a box body heat exchange system, and a box body thermometer is arranged on the instrument box body;
the earthquake monitoring constant temperature station also comprises a temperature difference controller and a temperature adjusting system for adjusting the temperature of the instrument box body, wherein the temperature difference controller is in communication connection with the temperature adjusting system, and the box body thermometer is in communication connection with the temperature difference controller;
when the temperature difference controller monitors that the temperature difference between the temperature in the instrument box body measured by the box body thermometer and the temperature value set by the box body heat exchange system is larger than a set temperature difference threshold value, the temperature difference controller controls the temperature adjusting system to start, and the temperature adjusting system adjusts the temperature of the instrument box body.
Further preferably, the box heat exchange system comprises at least one deep well with a depth greater than 20m, a U-shaped heat transfer pipe is arranged in the deep well, and the U-shaped heat transfer pipe and the box heat exchange pipe are connected to form a loop.
Further preferably, the temperature regulation system comprises a temperature regulation control cabinet, a ground source heat pump unit and indoor thermometer, wherein the heat exchange tubes in the temperature regulation chamber, the heat exchange tubes in the temperature regulation well and the indoor thermometer in the station chamber are arranged on each wall of the station chamber in a coiled mode, the ground source heat pump unit comprises an evaporator sub-unit and a condenser sub-unit, the ground source heat pump unit and the temperature difference controller are in communication connection with the temperature regulation control cabinet, the heat exchange tubes in the temperature regulation chamber are connected into the condenser sub-unit, and the heat exchange tubes in the temperature regulation well are connected into the evaporator sub-unit.
Further preferably, the temperature regulating system further comprises a solar heating and refrigerating system, the solar heating and refrigerating system comprises a solar heat collector arranged on the roof of the station room, a freezing subsystem and an energy storage tank which are connected with the solar heat collector, the freezing subsystem is only started when the solar heating and refrigerating system is in a refrigerating mode and is closed when the solar heating and refrigerating system is in a heating mode, the energy storage tank is sequentially provided with a medium outlet, a medium inlet and a medium temperature regulating port from top to bottom, the medium outlet and the medium inlet are connected with the solar heat collector to form a loop, and the medium temperature regulating port is connected with the evaporator subsystem of the ground source heat pump unit.
Further preferably, an indoor dehumidification system and a dehumidification controller for controlling the on and off of the indoor dehumidification system are further arranged in the station room, so that the humidity in the station room is controlled to be 40% -50%.
Further preferably, the earthquake monitoring constant temperature station further comprises a natural energy power supply system, the natural energy power supply system comprises a solar power generation panel and/or a windmill power generation device, a storage battery used for supplying power to electric appliances in the station chamber is arranged in the station chamber, and the solar power generation panel and/or the windmill power generation device are connected with the storage battery.
Further preferably, a wall of the station room is provided with a thermal insulation layer.
Further preferably, the loop connecting the U-shaped heat transfer pipe and the box heat exchange pipe adopts an integrally formed communicated heat superconducting pipe.
Preferably, an outer heat insulation cover plate is laid at the upper end of the deep well, gravels are backfilled in the deep well, and the heat insulation layer is wrapped on the periphery of the part, exposed outdoors, of the heat superconducting pipe.
Further preferably, the earthquake monitoring constant temperature station further comprises a network control system and a mobile monitoring end communicated with the network control system, and the box body thermometer, the indoor thermometer, the temperature difference controller, the temperature adjusting control cabinet and the dehumidifying controller are all in communication connection with the network control system.
The beneficial effects of the invention are: the earthquake monitoring constant temperature station provided by the invention is characterized in that an earthquake monitoring instrument is placed in an instrument box body to monitor the earthquake condition, firstly, the instrument box body is heated or cooled through a box body heat exchange pipe on the instrument box body and a box body heat exchange system, when a temperature difference controller monitors that the temperature difference between the temperature in the instrument box body measured by a box body thermometer and the temperature value set by the box body heat exchange system is greater than a preset temperature difference threshold value, the box body heat exchange system is not enough to heat or cool the instrument box body to a specified temperature, and the temperature difference controller controls a temperature adjusting system to be started to heat or cool the instrument box body for the second time so as to ensure that the temperature in the instrument box body reaches the set temperature value or is within the preset temperature difference threshold value range. Therefore, the invention can ensure that the temperature in the instrument box body keeps a constant temperature value all the year round or the temperature change is in a range which does not influence the normal work of the earthquake monitoring instrument. The working parameters and performance indexes of the earthquake monitoring instrument in the instrument box body are not influenced by the temperature any more, the stability and consistency of the earthquake monitoring instrument are improved, the monitoring precision of the earthquake monitoring instrument is improved, and accurate prediction of the earthquake early stage is guaranteed.
Further preferably, the box heat exchange system utilizes geothermal energy to refrigerate and heat the instrument box, the geothermal energy is renewable resources, the distribution is wide, the storage amount is rich, the unit cost is low, and the underground temperature of about 20 meters underground is adopted, so that the temperature in the instrument box 2 can be basically consistent with the temperature of about 20 meters underground due to the fact that the temperature of about 20 meters underground is basically constant.
Further preferably, the temperature adjusting system adopts geothermal energy to secondarily heat or refrigerate the station chamber, so that the indoor temperature of the station chamber is subjected to heat exchange with the indoor temperature of the instrument box, the temperature in the instrument box is kept consistent with the indoor temperature of the station chamber, the loss of the temperature in the instrument box is reduced, and meanwhile, the temperature in the instrument box is controlled to be consistent with the temperature value of 20 meters underground.
Further preferably, the temperature adjusting system also comprises a solar heating and refrigerating system, the solar heating and refrigerating system is low in cost, wide in solar energy distribution, energy-saving and environment-friendly, and the running cost of the earthquake monitoring constant temperature station is reduced.
Further preferably, the indoor dehumidification system can control the humidity in the station room to be 40% -50%, and normal operation of all devices in the earthquake monitoring constant-temperature station is further guaranteed.
Further preferably, the electric energy used by the electric appliances in the earthquake monitoring constant-temperature station is supplied by natural energy, so that the earthquake monitoring constant-temperature station is energy-saving, environment-friendly and low in cost.
Further preferably, a thermal insulation layer provided on the wall of the station room further ensures a constant temperature.
Further preferably, the heat superconducting pipe is adopted, so that the heat conduction efficiency is high.
Further preferably, the heat-insulating cover plate and the backfilled sand stone reduce the energy loss of the heat superconducting pipe during heat exchange.
Further preferably, the earthquake monitoring constant temperature station is connected to a network, and an independent network monitoring system of the earthquake monitoring station is established, so that the earthquake monitoring constant temperature station can be conveniently monitored and operated.
Drawings
FIG. 1 is a schematic block diagram of an embodiment of a seismic monitoring constant temperature station of the present invention;
FIG. 2 is a piping diagram of the box heat exchange system and the tempering system in an embodiment of the earthquake monitoring and thermostatic station of the present invention;
FIG. 3 is a schematic diagram of the indoor dehumidification system in an embodiment of the seismic surveillance constant temperature station of the present disclosure;
FIG. 4 is a schematic structural diagram of a heating mode of a solar heating and cooling system in an embodiment of the earthquake monitoring constant temperature station of the invention;
fig. 5 is a schematic structural diagram of a cooling mode of a solar heating and cooling system in an embodiment of the earthquake monitoring constant temperature station.
Detailed Description
In the description of the embodiments of the present invention, it should be understood that the terms "central", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, the meaning of "a plurality" means two or more unless otherwise specified. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
In the description of the present invention, it is to be noted that the terms "mounted," "connected," and "connected" are to be construed broadly unless otherwise specifically indicated and limited. For example, the connection can be fixed, detachable or integrated; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
In order to facilitate an understanding of the invention, reference will now be made in detail to the present embodiments of the invention, examples of which are illustrated in the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
The embodiment of the earthquake monitoring constant temperature station provided by the invention comprises a station chamber 1 arranged on the ground surface, wherein an instrument box body 2 is arranged in the station chamber 1, and an earthquake monitoring instrument is arranged in the instrument box body 2, such as: and a wave detector. The side wall of the instrument box 2 is provided with a box heat exchange tube 3. As shown in FIG. 2, the box heat exchanger tubes 3 are provided in a coil form on both left and right side walls of the instrument box 2, but in other embodiments, the box heat exchanger tubes 3 may be provided in a coil form on both front and rear side walls and/or both upper and lower side walls of the instrument box 2. The tank heat exchanger tubes 3 are connected to a tank heat exchanger system 4. In the preferred embodiment, the box heat exchange system 4 comprises at least one deep well 7 with a depth H of 20m, and the depth H of the deep well 7 can be set to 20m or more according to different regions and different requirements. The deep well 7 is internally provided with a U-shaped heat transfer pipe 8, and the U-shaped heat transfer pipe 8 is connected with the box heat exchange pipe 3 to form a loop. The U-shaped heat transfer pipe 8 transfers the bottom temperature of the deep well 7 to the instrument box 2 through the box heat exchange pipe 3, and ideally, the temperature in the instrument box 2 should reach the bottom temperature of 20 meters of the deep well 7. However, due to the heat loss during the heat exchange process between the U-shaped heat transfer pipe 8 and the box heat exchange pipe 3 and the influence of the external environment temperature of the instrument box 2, there is a temperature difference between the temperature in the instrument box 2 and the bottom temperature of the 20m deep well 7, so the station room 1 of the embodiment is provided with the temperature difference controller 6 and the temperature adjusting system electrically connected with the temperature difference controller 6 for adjusting the temperature of the instrument box 2. The instrument box body 2 is provided with a box body thermometer 5, the box body thermometer 5 is electrically connected with a temperature difference controller 6, the box body thermometer 5 transmits the measured temperature in the instrument box body 2 to the temperature difference controller 6, the bottom hole temperature of a deep well 7 of 20 meters is used as a set temperature value, and the bottom hole temperature is transmitted to the temperature difference controller 6 by inserting a temperature sensor 14 at the bottom hole of the deep well 7. The temperature difference controller 6 analyzes the temperature difference between the temperature in the instrument box body 2 and the bottom temperature of the deep well 7, and when the temperature difference is larger than a preset temperature difference threshold value, the temperature difference controller 6 controls the temperature adjusting system to adjust the temperature of the instrument box body 2.
The construction area of seismic monitoring station among the prior art can have the difference in temperature according to the change of sunshine and solar terms, keeps invariable throughout the year for the ambient temperature who guarantees around the seismic monitoring instrument, for example the seismic monitoring constant temperature station of this embodiment sets up in the northern area, when winter, needs heat instrument box 2, and when summer, needs refrigerate instrument box 2, just can guarantee that the temperature in instrument box 2 keeps the constant temperature unanimous winter and summer. In this embodiment, the instrument box 2 is first heated or cooled by the U-shaped heat transfer tubes 8 and the box heat exchange tubes 3 in the first step. The temperature difference between the temperature in the instrument box body 2 and the bottom temperature of the deep well 7 is monitored by the temperature difference controller 6, and when the temperature difference between the temperature in the instrument box body 2 measured by the box body thermometer 5 and the bottom temperature of the deep well 7 monitored by the temperature difference controller 6 is larger than a set temperature difference threshold value, in the embodiment, the temperature difference threshold value is set to be +/-2 ℃ in order to ensure that the temperature in the instrument box body 2 is accurately kept consistent. The temperature difference controller 6 controls the starting of the temperature adjusting system, the temperature adjusting system heats or refrigerates the instrument box body 2 in the second procedure, and the temperature in the instrument box body 2 is ensured to be consistent with the bottom temperature of the deep well 7, or the temperature difference between the temperature in the instrument box body 2 and the bottom temperature of the deep well 7 is ensured to be within a specified temperature difference threshold range. For example, taking the northern area as an example, because the northern four seasons have large temperature change, when the temperature difference controller 6 monitors that the temperature in the instrument box 2 is higher than the bottom temperature of the deep well 7 in summer and the absolute value of the temperature difference between the temperature difference and the bottom temperature is greater than 2 ℃, the temperature difference controller 6 controls the temperature regulating system to start to refrigerate and cool the instrument box 2 until the temperature difference controller 6 monitors that the absolute value of the temperature difference between the temperature in the instrument box 2 and the bottom temperature of the deep well 7 is within 2 ℃ again, and the temperature difference controller 6 controls the temperature regulating system to stop working. When the temperature difference controller 6 monitors that the temperature in the instrument box body 2 measured by the box body thermometer 5 is lower than the bottom-hole temperature value of the deep well 7 in winter and the absolute value of the temperature difference is larger than 2 ℃, the temperature difference controller 6 controls the temperature adjusting system to start heating and adjusting the temperature of the instrument box body 2 until the temperature difference controller 6 monitors that the absolute value of the temperature difference between the temperature in the instrument box body 2 and the bottom-hole temperature of the deep well 7 is within 2 ℃ again, and the temperature difference controller 6 controls the temperature adjusting system to stop working.
This embodiment can realize adjusting the difference in temperature between the bottom of a well temperature value of temperature and deep well 7 in the instrument box 2 through temperature regulating system, guaranteed that the temperature in the instrument box 2 can keep unanimous with the bottom of a well temperature of deep well 7 throughout the year, or the difference in temperature of the bottom of a well temperature of temperature and deep well 7 in the instrument box 2 is in the threshold value within range of regulation, because the temperature variation of the difference in temperature within 2 ℃ of range can not exert an influence to the working parameter and the performance index of seismic monitoring instrument, improve the stability and the uniformity of seismic monitoring instrument, improve the monitoring precision of seismic monitoring instrument, guarantee the accurate prediction of earthquake early stage.
In this embodiment, the box heat exchange system utilizes geothermal energy to perform cooling and heating, the geothermal energy is a renewable resource, the distribution is wide, the storage capacity is rich, the unit cost is low, and what this embodiment extracted is the underground temperature equivalent to about 20 meters underground, because the temperature of 20 meters underground is invariable throughout the year, the temperature in the instrument box 2 and the temperature of 20 meters underground are basically kept consistent, and the temperature in the instrument box 2 can be ensured to be basically consistent throughout the year.
In this embodiment, it is further preferable that the temperature adjustment system includes a temperature adjustment control cabinet 9, a ground source heat pump unit 10, temperature adjustment internal heat exchange tubes 11 coiled on walls of each side of the station room 1, and a temperature adjustment internal heat exchange tube 12 arranged in the deep well 7, where the ground source heat pump unit 10 includes an evaporator sub-unit 101 and a condenser sub-unit 102, the ground source heat pump unit 10 and the temperature difference controller 6 are electrically connected to the temperature adjustment control cabinet 9, and the temperature adjustment control cabinet 9 opens and closes the ground source heat pump unit 10 according to a received temperature difference value between the bottom temperature of the deep well 7 and the instrument box 2 transmitted by the temperature difference controller 6. The heat exchange tubes 11 in the temperature-controlled chamber are connected to the condenser block 102, and the heat exchange tubes 12 in the temperature-controlled well are connected to the evaporator block 101.
The present embodiment further preferably further includes an indoor thermometer 13 disposed in the station room 1, and the indoor thermometer 13 facilitates monitoring of the temperature in the station room 1 by a worker.
The temperature adjusting system of the embodiment still adopts the bottom hole temperature of the deep well 7 to perform the second process temperature adjustment on the instrument box body 2, and firstly adjusts the temperature in the station room 1 by using the bottom hole temperature of the deep well 7, and then conducts heat to the temperature in the instrument box body 2 by using the temperature in the station room 1, so that the temperature in the instrument box body 2 is consistent with the temperature in the station room 1, and the absolute value of the temperature difference between the temperature and the bottom hole temperature of the deep well 7 is kept within the range of 2 ℃.
In this embodiment, as shown in fig. 1, 4 and 5, the temperature adjustment system further includes a solar heating and cooling system, the solar heating and cooling system includes a solar heat collector 15 disposed on the roof of the station room 1, a freezing subsystem 16 connected to the solar heat collector 15, and an energy storage tank 17, the freezing subsystem 16 is activated when the solar heating and cooling system is in a cooling mode, and is deactivated when the solar heating and cooling system is in a heating mode. The energy storage tank 17 is provided with a medium outlet 171, a medium inlet 172 and a medium temperature adjusting port 173 from top to bottom in sequence, the medium in this embodiment is water, and of course, other mediums suitable for heat exchange may also be used. The medium outlet 171 and the medium inlet 172 are connected to the solar collector 15 through pipes to form a circuit, and the freezing subsystem 16 is connected in parallel to the pipe connecting the medium inlet 172 to the solar collector 15. The medium temperature adjusting port 173 is connected to the evaporator sub-unit 101 of the ground source heat pump unit 10.
As shown in fig. 4, the medium outlet 171 and the medium inlet 172 are connected to the solar heat collector 15 through a pipeline to form a loop, and a solar heating subsystem is provided, and the solar heating subsystem includes a system water supply pipeline 41, an expansion tank 42, an outlet water temperature measuring device 43, an inlet water temperature measuring device 44, a hot water temperature difference controller 45, a heating system circulating pump 46, an exhaust valve 47, a solar heating and cooling system signal valve 48, an energy storage tank outlet temperature measuring device 49, an energy storage tank inlet temperature measuring device 50, an energy storage tank temperature difference controller 51, and a signal butterfly valve 52.
The working principle of the solar heating and refrigerating system during heating is as follows: the solar heating and cooling system supplements water to the solar heat collector 15 through a system water supplementing pipeline 41. The amount of water supply of the solar thermal collector 15 is controlled by the expansion tank 42, when water with pressure from the outside enters the air bag of the expansion tank 42, nitrogen sealed in the expansion tank 42 is compressed, the volume of the compressed gas is reduced and the pressure is increased according to the Boyle's law of gas, and the water supply is stopped until the pressure of the gas in the expansion tank 42 is consistent with the pressure of the water. When the pressure in the external water pipe connected to the expansion tank 42 is reduced due to water loss, the gas pressure in the expansion tank 42 is higher than the water pressure, at this time, the gas in the expansion tank 42 expands to discharge the water for water supplement, and the water supplement is stopped until the gas pressure is consistent with the water pressure in the external water pipe again. When the water in the solar thermal collector 15 is full, the temperature difference of the water in the external water pipe connected with the solar thermal collector 15 is controlled by the outlet water temperature measurer 43 and the inlet water temperature measurer 44, and when the temperature difference between the water temperature measured by the outlet water temperature measurer 43 and the water temperature measured by the inlet water temperature measurer 44 exceeds a set temperature difference value, a starting signal is sent to the heating system circulating pump 46 by the hot water temperature difference controller 45, and the heating system circulating pump 46 is started to perform forced circulation on the water in the external water pipe. The water in the external water pipe is heat-supplemented by the solar heat collector 15, and the gas in the external water pipe is exhausted through the exhaust valve 47. An energy storage tank outlet temperature measurer 49 and an energy storage tank inlet temperature measurer 50 measure the water temperatures of the inlet and the outlet of the energy storage tank 17, an energy storage tank temperature difference controller 51 controls hot water circulation according to the temperature difference of the water temperatures of the inlet and the outlet of the energy storage tank, and when the temperature difference of the water temperatures of the inlet and the outlet of the energy storage tank 17 is larger than a set temperature difference value, a signal butterfly valve 52 is opened to carry out hot water circulation. The solar heating and refrigerating system stores water with heat into the energy storage tank 17, the medium temperature adjusting port 173 of the energy storage tank 17 is connected to the ground source heat pump unit 10, and when the local heat energy cannot meet the requirement of temperature compensation on the station room 1, the temperature adjusting control cabinet 9 opens the signal valve 48 of the solar heating and refrigerating system, and further temperature compensation is carried out on the station room 1 through the solar heating and refrigerating system.
As shown in fig. 5, in this embodiment, it is further preferable that the refrigeration subsystem 16 includes a lithium bromide generator 161, a switch valve 162, an absorber 163, a circulation pump 164, a refrigerator 165, a throttle valve 166, and an evaporator 167, where the lithium bromide generator 161, the switch valve 162, the absorber 163, and the circulation pump 164 are connected in series in sequence and form a loop, another branch of the lithium bromide generator 161 is communicated with the refrigerator 165, the evaporator 167 is connected to the rear end of the refrigerator 165, and the throttle valve 166 is connected in series between the refrigerator 165 and the evaporator 167. The working principle of the refrigeration subsystem is as follows: the water in the aqueous lithium bromide solution is continuously vaporized as it is subjected to the water heated by the solar collector 15 within the lithium bromide generator 161. As the water vaporizes, the concentration of the lithium bromide solution in the lithium bromide generator 161 increases, and the lithium bromide solution enters the absorber 163 through the switch valve 162; the vaporized water vapor enters the refrigerator 165, is cooled by cooling water in the refrigerator 165 and is condensed into high-pressure low-temperature liquid water. When the water in the refrigerator 165 enters the evaporator 167 through the throttle 166, it expands rapidly and vaporizes, and absorbs a large amount of heat of the refrigerant water in the evaporator 167 in the process of vaporization, thereby achieving the purpose of cooling and refrigeration. In the process, the high-pressure low-temperature water vapor enters the absorber 163, is absorbed by the lithium bromide aqueous solution in the absorber 163, gradually reduces the solution concentration, and is sent back to the lithium bromide generator 161 by the circulating pump 164, so that the whole circulation is completed.
When the solar heating and refrigerating system needs to refrigerate the instrument box body 2, the freezing subsystem 16 is started, medium water is collected into the energy storage tank 17 after being refrigerated through the freezing subsystem 16, and then the instrument box body 2 is refrigerated through the ground source heat pump unit 10. When the solar heating and refrigerating system needs to heat the instrument box 2, the refrigeration subsystems 16 connected in parallel are closed, the solar heating system between the solar heat collector 15 and the medium inlet 172 operates, medium water is directly collected into the energy storage tank 17 through the solar heat collector 15, and the instrument box 2 is heated through the ground source heat pump unit 10.
In the solar heating and cooling system in this embodiment, when the local source heat pump unit 10 performs heating or cooling in the second process by using geothermal energy, and the temperature difference between the temperature in the instrument box 2 and the bottom hole temperature of the deep well 7 cannot be controlled within the specified temperature difference threshold range, the solar heating and cooling system is started to further adjust the temperature in the station room 1, and further, the temperature in the instrument box 2 is continuously adjusted.
In the solar heating and cooling system in this embodiment, the solar heat collector 15 supplies heat in winter and cools in summer, and in the transition season, the solar heat collector 15 not only provides hot water for life, but also stores redundant heat through the energy storage tank 17 for supplying heat in winter. Therefore, the comprehensive utilization of solar energy can be realized, the idle sunning of the solar heat collector 15 can be avoided, and the service life of the solar heat collector 15 is prolonged.
Aiming at the phenomenon of condensation in areas with large day-night temperature difference, in the embodiment, it is further preferable that an indoor dehumidifying system 18 and a dehumidifying controller 19 for controlling the on-off of the indoor dehumidifying system 18 are further arranged in the station room 1, so that the humidity in the station room 1 is controlled to be 40% -50%, the indoor dehumidifying system 18 is connected to the temperature-adjusting control cabinet 9, and the on-off of the indoor dehumidifying system 18 is monitored by the temperature-adjusting control cabinet 9.
Further preferably, the earthquake monitoring constant temperature station of this embodiment further includes a natural energy power supply system, the natural energy power supply system includes a solar power generation panel 20 and a windmill power generation device 21, a storage battery 22 for supplying power to electrical appliances in the station room 1 is provided in the station room 1, and both the solar power generation panel 20 and the windmill power generation device 21 are connected to the storage battery 22.
In a further preferred embodiment, the wall of the station room 1 is provided with a thermal insulation layer.
In this embodiment, it is further preferable that the loop in which the U-shaped heat transfer tubes 8 are connected to the box heat exchange tubes 3 is formed integrally with a heat superconducting tube.
The heat superconducting pipe is in a fine capillary structure, so that heat can be rapidly transmitted conveniently. The heat superconducting pipe is filled with special novel liquid which is easy to sublimate and desublimate. The heat or cold in the ground is continuously exchanged to the instrument box 2 through the vacuum pipeline. The U-shaped heat superconducting pipe is embedded in the deep well 7 to increase the heat exchange area. In the heat exchange process of the heat superconducting pipe, heat loss may occur on the surface area of the heat superconducting pipe through contact with air and other media, so it is further preferable that an outer heat-insulating cover plate 25 is laid at the upper end of the deep well 7, gravel 26 is backfilled in the deep well 7, and the part of the heat superconducting pipe exposed outdoors is wrapped with a heat-insulating layer to ensure that the heat loss is minimized in the heat exchange process of the instrument box body 2 and the deep well 7.
Further preferably, the earthquake monitoring constant temperature station of the embodiment further includes a network control system 23 and a mobile monitoring terminal communicating with the network control system 23, and the box thermometer 5, the indoor thermometer 13, the temperature difference controller 6, the temperature adjustment control cabinet 9 and the dehumidification controller 19 are all in communication connection with the network control system 23. Therefore, the earthquake monitoring constant temperature station of the embodiment is accessed to a network, the mobile monitoring end can be a computer or a mobile phone, and monitoring data of the earthquake monitoring constant temperature station, the temperature in the instrument box body 2 and the temperature in the station room 1 of the embodiment can be observed and counted on the computer or the mobile phone. The temperature adjusting system and the solar heating and refrigerating system can be remotely operated by moving the monitoring end, the change of the environmental temperature can be manually adjusted according to different conditions, and the data influence of the monitoring system is recorded and compared according to the change of the temperature. The ground source heat pump unit 10 can be remotely controlled and recorded through the mobile monitoring terminal, for example, when the ground source heat pump unit 10 is dead, the remote operation can be performed to restart the ground source heat pump unit 10. The installation and the fault of the earthquake monitoring instrument in the earthquake monitoring constant temperature station can be recorded through the mobile monitoring end, and the improvement of the earthquake monitoring instrument is facilitated.
The present embodiment further preferably employs an infrared correlation temperature sensor for the indoor thermometer 13 to sample the temperature inside the station room 1. Because of seismic monitoring constant temperature station extremely high to the requirement of temperature, when sampling the ambient temperature of station room 1, use infrared correlation temperature sensor to sample, become linear control by original point row control to ambient temperature's collection area, increase the effective collection to the ambient temperature of station room 1. The starting times of the temperature regulating system can be controlled by effectively collecting the indoor environment temperature, and the service life of each device in the temperature regulating system is protected.
The above description is only an embodiment of the present invention, and is not intended to limit the scope of the present invention, and all equivalent structural changes made by using the contents of the present specification and the drawings, or any other related technical fields, are included in the scope of the present invention.
Claims (9)
1. A seismic monitoring constant temperature station comprises a station chamber, wherein an instrument box body is arranged in the station chamber, and the seismic monitoring constant temperature station is characterized in that box body heat exchange tubes are arranged on the side wall of the instrument box body in a hanging mode and connected to a box body heat exchange system, and a box body thermometer is arranged on the instrument box body;
the earthquake monitoring constant temperature station also comprises a temperature difference controller and a temperature adjusting system for adjusting the temperature of the instrument box body, wherein the temperature difference controller is in communication connection with the temperature adjusting system, and the box body thermometer is in communication connection with the temperature difference controller;
when the temperature difference controller monitors that the temperature difference between the temperature in the instrument box body measured by the box body thermometer and the temperature value set by the box body heat exchange system is larger than a set temperature difference threshold value, the temperature difference controller controls the temperature adjusting system to start, and the temperature adjusting system adjusts the temperature of the instrument box body; the box body heat exchange system comprises at least one deep well with the depth larger than 20m, a U-shaped heat transfer pipe is arranged in the deep well, and the U-shaped heat transfer pipe and the box body heat exchange pipe are connected into a loop.
2. The earthquake monitoring constant-temperature station as claimed in claim 1, wherein the temperature regulating system comprises a temperature regulating control cabinet, a ground source heat pump unit, heat exchange pipes in the temperature regulating chamber, heat exchange pipes in the temperature regulating well and indoor thermometers, the heat exchange pipes are coiled on walls of the station chamber, the heat exchange pipes in the temperature regulating well are arranged in the deep well, the indoor thermometers are arranged in the station chamber, the ground source heat pump unit comprises an evaporator sub-unit and a condenser sub-unit, the ground source heat pump unit and the temperature difference controller are in communication connection with the temperature regulating control cabinet, the heat exchange pipes in the temperature regulating chamber are connected to the condenser sub-unit, and the heat exchange pipes in the temperature regulating well are connected to the evaporator sub-unit.
3. The earthquake monitoring constant temperature station according to claim 2, wherein the temperature regulating system further comprises a solar heating and refrigerating system, the solar heating and refrigerating system comprises a solar heat collector arranged on the roof of the station room, a freezing subsystem and an energy storage tank, the freezing subsystem is connected with the solar heat collector and is only started when the solar heating and refrigerating system is in a refrigerating mode and is closed when the solar heating and refrigerating system is in a heating mode, the energy storage tank is sequentially provided with a medium outlet, a medium inlet and a medium temperature regulating port from top to bottom, the medium outlet and the medium inlet are connected with the solar heat collector to form a loop, and the medium temperature regulating port is connected with an evaporator sub-unit of the ground source heat pump unit.
4. The earthquake monitoring constant-temperature station as claimed in claim 3, wherein an indoor dehumidification system and a dehumidification controller for controlling the on and off of the indoor dehumidification system are further arranged in the station chamber, so that the humidity in the station chamber is controlled to be 40% -50%.
5. The earthquake monitoring constant temperature station according to claim 4, further comprising a natural energy power supply system, wherein the natural energy power supply system comprises a solar power generation panel and/or a windmill power generation device, a storage battery for supplying power to electric appliances in the station chamber is arranged in the station chamber, and the solar power generation panel and/or the windmill power generation device are connected with the storage battery.
6. The earthquake monitoring and thermostatic station of claim 5, wherein the walls of the station chamber are lined with a layer of insulation.
7. The earthquake monitoring constant temperature station according to any one of claims 4 to 6, wherein a loop connecting the U-shaped heat transfer pipe and the box heat exchange pipe is a heat superconducting pipe communicated with each other by integral forming.
8. The earthquake monitoring constant temperature station according to claim 7, wherein an outer heat insulation cover plate is laid at the upper end of the deep well, sand and stones are filled in the deep well, and the heat insulation layer wraps the part, exposed outdoors, of the heat superconducting pipe.
9. The earthquake monitoring constant temperature station according to claim 8, further comprising a network control system and a mobile monitoring terminal communicating with the network control system, wherein the box thermometer, the indoor thermometer, the temperature difference controller, the temperature adjusting control cabinet and the dehumidifying controller are all in communication connection with the network control system.
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| CN201710359872.0A CN107092290B (en) | 2017-05-20 | 2017-05-20 | Earthquake monitoring constant temperature station |
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| KR100886009B1 (en) * | 2008-11-10 | 2009-03-03 | 한국지질자원연구원 | Ground water restoration type terrestrial heat exchanger using auto temperature bypass apparatus |
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| CN101588705A (en) * | 2008-05-23 | 2009-11-25 | 华为技术有限公司 | A kind of rack and machine-cabinet temperature controlling system |
| CN101588701A (en) * | 2008-05-23 | 2009-11-25 | 华为技术有限公司 | Temperature control method and temperature control system of machine cabinet |
| KR100886009B1 (en) * | 2008-11-10 | 2009-03-03 | 한국지질자원연구원 | Ground water restoration type terrestrial heat exchanger using auto temperature bypass apparatus |
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