CN211601216U - Frozen soil refrigerating system - Google Patents
Frozen soil refrigerating system Download PDFInfo
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- CN211601216U CN211601216U CN202020190238.6U CN202020190238U CN211601216U CN 211601216 U CN211601216 U CN 211601216U CN 202020190238 U CN202020190238 U CN 202020190238U CN 211601216 U CN211601216 U CN 211601216U
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Abstract
The utility model relates to the technical field of frozen soil construction equipment, and discloses a frozen soil refrigerating system, which comprises an antifreeze water tank, a first refrigerating device and a U-shaped pipe, wherein the first refrigerating device comprises a first evaporator, the first evaporator is communicated with the antifreeze water tank through a pipeline, and the antifreeze water tank is communicated with the U-shaped pipe; wherein, the inside of antifreeze water tank is installed with the coil pipe. According to the frozen soil refrigerating system and the using method thereof, through arranging the frozen soil temperature sensor and the frozen soil pressure sensor in the soil to be frozen, people can know the freezing condition of the soil constantly through the frozen soil temperature sensor and the frozen soil temperature sensor, and accordingly the quantity of the refrigerating equipment to be added or reduced is determined, and therefore the refrigerating equipment can output enough and proper cold quantity to the soil source.
Description
Technical Field
The utility model relates to a frozen soil construction equipment technical field specifically is a frozen soil refrigerating system.
Background
The mode of frozen soil construction can be adopted usually when carrying out construction to some districts, and frozen soil construction has following advantage:
water sealing property: the frozen soil can be frozen into soil, a frozen soil wall is formed to increase the bearing pressure of a soil layer, the frozen soil wall can prevent underground water from invading, and a safe construction environment is formed;
the adaptability is strong: the method is suitable for places with large water content and weak stratums, and meanwhile, after construction is finished, the soil layer is restored to the original state and has small destructiveness to the soil layer;
the practicability is strong: the construction can be carried out in a dense building area and the existing engineering buildings, foundation pit drainage is not needed, and adverse effects on surrounding buildings caused by foundation settlement due to water pumping can be avoided;
construction is convenient: during construction, no supporting lining and no anchor are used, open construction can be performed, the building area is enlarged, and the construction period is shortened.
Frozen soil construction usually all needs the manual work to build frozen soil and makes the frozen soil construction environment during the frozen soil construction, and the current mode of preparing frozen soil adopts single refrigeration plant to soil output cold volume to make construction ground take place to freeze, however, its cold volume of input of current refrigeration plant is limited, and refrigerating efficiency is not high, and people also are difficult to adjust the refrigeration plant to soil output's cold volume according to the concrete condition of freezing of soil at will, thereby causes the inconvenience in the use of current refrigeration plant.
SUMMERY OF THE UTILITY MODEL
The utility model provides a frozen soil refrigerating system possesses refrigeration plant and can export sufficient cold volume and be convenient for simultaneously people can adjust the advantage of refrigeration plant to the cold volume of soil output according to the concrete condition of freezing of soil, has solved the problem mentioned in the above-mentioned background art.
The utility model provides a following technical scheme: a frozen soil refrigerating system comprises an antifreeze water tank, a first refrigerating device and a U-shaped pipe, wherein the first refrigerating device comprises a first evaporator, the first evaporator is communicated with the antifreeze water tank through a pipeline, and the antifreeze water tank is communicated with the U-shaped pipe; wherein, the inside of antifreeze water tank is installed with the coil pipe.
Preferably, the first refrigeration equipment further comprises a first compressor, a first condenser and a first throttle valve, the first compressor is communicated with the first condenser through a pipeline, the first condenser is communicated with the first throttle valve through a pipeline, the first throttle valve is communicated with the first evaporator through a pipeline, and the first evaporator is communicated with the first compressor through a pipeline.
Preferably, a water outlet of the first evaporator is communicated with a first freezing pump through a pipeline, a water outlet of the first freezing pump is communicated with a water inlet of the antifreeze water tank through a pipeline, and a water outlet of the antifreeze water tank is communicated with a water inlet of the first evaporator through a pipeline; wherein, the inside of first evaporimeter still is provided with second temperature sensor and second pressure sensor.
Preferably, the water outlet of the first condenser is communicated with a cooling tower through a pipeline, the water outlet of the cooling tower is communicated with a cooling pump through a pipeline, and the water outlet of the cooling pump is communicated with the water inlet of the first condenser through a pipeline; wherein the cooling tower is also communicated with a tower water pump through a pipeline; wherein, the inside of first condenser still is provided with first temperature sensor and first pressure sensor.
Preferably, one end of the coil pipe is communicated with a second compressor, the second compressor is communicated with a second condenser through a pipeline, the second condenser is communicated with a second throttling valve through a pipeline, and the second throttling valve is communicated with the other end of the coil pipe; wherein, the second condenser is also connected with an air energy radiator.
Preferably, the antifreeze water tank is communicated with a frozen soil freezing pump through a pipeline, the frozen soil freezing pump is communicated with a water collector through a pipeline, the water collector is communicated with the water outlet of the U-shaped pipe through a PID regulating valve, the water inlet of the U-shaped pipe is communicated with a water separator through a pipeline, and the water separator is communicated with the antifreeze water tank through a pipeline; and a frozen soil temperature sensor and a frozen soil pressure sensor are also arranged in the soil layer where the U-shaped pipe is located.
Preferably, the system also comprises a liquid level sensor, an antifreeze concentration sensor and a tank water pump, wherein the liquid level sensor and the antifreeze concentration sensor are arranged inside the antifreeze water tank; wherein, the tank water pump is connected with the antifreeze water tank through a pipeline.
Preferably, the first refrigeration equipment, the frozen soil temperature sensor, the frozen soil pressure sensor, the first refrigerating pump, the cooling tower, the tower water pump, the first temperature sensor, the first pressure sensor, the second temperature sensor, the second pressure sensor, the frozen soil refrigerating pump, the PID regulating valve, the second compressor, the second condenser, the second throttle valve, the air energy radiator, the liquid level sensor, the antifreeze concentration sensor and the box water pump are all in communication connection with the master control box.
Preferably, the system further comprises a mobile terminal, and the mobile terminal is in communication connection with the master control box.
The utility model discloses possess following beneficial effect:
1. according to the frozen soil refrigerating system and the using method thereof, through arranging the frozen soil temperature sensor and the frozen soil pressure sensor in the soil to be frozen, people can know the freezing condition of the soil constantly through the frozen soil temperature sensor and the frozen soil temperature sensor, and accordingly the quantity of the refrigerating equipment to be added or reduced is determined, and therefore the refrigerating equipment can output enough and proper cold quantity to the soil source.
2. According to the frozen soil refrigeration system and the using method thereof, the liquid level sensor and the antifreeze concentration sensor are arranged in the antifreeze water tank, people can detect the antifreeze concentration and the liquid level height in the antifreeze water tank according to the antifreeze concentration sensor and the liquid level sensor, so that the antifreeze can be added into the antifreeze water tank and/or the water amount can be increased or decreased into the antifreeze water tank through the tank water pump to adjust the liquid level in the antifreeze water tank and the antifreeze content to reach the standard value.
3. Through setting up first temperature sensor and first pressure sensor in the inside of first condenser, temperature in first temperature sensor can the constantly feedback first condenser, when the temperature was too high, the people of being convenient for dispel the heat to first condenser through the fan in total accuse case in time starting the cooling tower to be convenient for first condenser efficient refrigeration work more, first pressure sensor reflects the inside pressure situation of first condenser, the safer work of first condenser of being convenient for.
4. Through the inside at first evaporimeter setting up second temperature sensor and second pressure sensor, the temperature in the first evaporimeter can be presented constantly to the second temperature sensor, and when the temperature was too high, people of being convenient for in time started the first condenser among the first refrigeration plant through total accuse case and carry out the heat transfer, and first pressure sensor reflects the inside pressure situation of first evaporimeter, the safer work of the first evaporimeter of being convenient for.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is the communication connection schematic diagram of each electrical appliance of the present invention.
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 work belong to the protection scope of the present invention.
All need the manual work to build the frozen soil and make up frozen soil construction environment usually during frozen soil construction, the mode of current preparation frozen soil adopts single refrigeration plant to soil output cold volume to make construction ground take place to freeze, however, the cold volume of its input of current refrigeration plant is limited, and refrigerating efficiency is not high, and people also are difficult to adjust the cold volume of refrigeration plant to soil output according to the concrete condition of freezing of soil at will, thereby cause the inconvenience in the use of current refrigeration plant, the utility model provides an below embodiment is used for solving above-mentioned problem.
Example 1
Referring to fig. 1-2, a frozen soil refrigeration system includes an antifreeze water tank, a first refrigeration device, a second refrigeration device, and a U-shaped pipe, wherein the first refrigeration device includes a first evaporator, the first evaporator is communicated with the antifreeze water tank through a pipeline, and the antifreeze water tank is communicated with the U-shaped pipe; the second refrigeration equipment comprises a coil pipe, a second compressor, a second condenser and a second throttle valve, the coil pipe is installed inside the antifreeze water tank, it should be noted that liquid inside the antifreeze water tank can be glycol solution or saline solution, the saline solution is low in cost and easy to corrode, people can select antifreeze, glycol or saline as required, and the U-shaped pipe is buried under the ground level needing to be frozen.
Preferably, the first refrigeration equipment further comprises a first compressor, a first condenser and a first throttle valve, the first compressor is communicated with the first condenser through a pipeline, the first condenser is communicated with the first throttle valve through a pipeline, the first throttle valve is communicated with the first evaporator through a pipeline, and the first evaporator is communicated with the first compressor through a pipeline.
The water outlet of the first evaporator is communicated with a first freezing pump through a pipeline, the water outlet of the first freezing pump is communicated with the water inlet of the antifreeze water tank through a pipeline, the water outlet of the antifreeze water tank is communicated with the water inlet of the first evaporator through a pipeline, a second temperature sensor and a second pressure sensor are further arranged inside the first evaporator, and the first freezing pump is used for conveying cold energy generated by the first evaporator into the antifreeze water tank.
When the first refrigeration equipment works, the refrigerant in the first evaporator absorbs the heat in the antifreeze water tank to evaporate into vapor with lower pressure and temperature, the vapor is sucked and compressed by the first compressor, the pressure and temperature of the refrigerant are increased, the refrigerant is discharged into the first condenser, the refrigerant vapor is condensed into liquid with higher pressure in the first condenser through heat release, the refrigerant liquid passes through the throttling of the first throttle valve, the pressure and temperature of the refrigerant liquid are reduced, the refrigerant liquid enters the first evaporator to evaporate, and the cycle is repeated, so that the aim of reducing the temperature of the liquid in the antifreeze water tank is fulfilled.
The water outlet of the first condenser is communicated with a cooling tower through a pipeline, the water outlet of the cooling tower is communicated with a cooling pump through a pipeline, and the water outlet of the cooling pump is communicated with the water inlet of the first condenser through a pipeline; wherein the cooling tower is also communicated with a tower water pump through a pipeline; wherein, the inside of first condenser still is provided with first temperature sensor and first pressure sensor.
First temperature sensor can feed back the temperature in the condenser constantly, when the temperature is too high, be convenient for people in time start the cooling tower interior fan through total control box and dispel the heat to first condenser, the cooling tower is with water as the circulation coolant, absorb heat emission to the atmosphere in from first condenser, with the device that reduces refrigerant temperature in the first condenser, its refrigeration principle utilizes water and air to flow and carries out heat and cold exchange after the contact and produce steam, steam volatilizees and takes away the heat and reaches evaporation heat dissipation, principle such as convection heat transfer and radiation heat transfer dispel the heat of first condenser, with the normal operating of guaranteeing first condenser and first refrigeration plant, the moisture of disappearance in the supplementary cooling tower that the tower water pump can be timely, first pressure sensor reflects first condenser internal pressure and is convenient for its safer work.
Beneficially, the one end intercommunication of coil pipe has the second compressor, the second compressor has the second condenser through the pipeline intercommunication, the second condenser has the second choke valve through the pipeline intercommunication, the second choke valve with the other end of coil pipe is linked together, wherein, the second condenser still is connected with the air can the radiator, and the second condenser passes through the air can the radiator and cools down with wind energy to carry out the heat exchange in with the coil pipe.
When the second refrigeration equipment works, the refrigerant in the coil absorbs the heat in the antifreeze water tank and is evaporated into saturated pressure and vapor of the refrigerant, after the refrigerant is sucked and compressed by the second compressor, the pressure and the temperature of the refrigerant are both increased (the refrigerant is changed into saturated high temperature and high pressure), then the refrigerant is discharged into the second condenser, the refrigerant vapor is condensed into liquid with higher pressure in the second condenser through heat release, then the refrigerant liquid passes through the throttling action of the second throttle valve, the pressure and the temperature of the refrigerant liquid are both reduced and then enter the coil to be evaporated, and the circulation work is repeated in such a cycle, so that the purpose of reducing the temperature of the liquid in the antifreeze water tank is achieved.
When sealing up and freezing soil, if the produced cold volume of first refrigeration plant is not enough, can start the cold volume that second refrigeration plant increases the antifreeze water tank inside to improve the efficiency that soil sealed up and freezes.
The anti-freezing agent water tank is communicated with a frozen soil freezing pump through a pipeline, the frozen soil freezing pump is used for conveying frozen liquid in the anti-freezing agent water tank to the U-shaped pipe, so that the U-shaped pipe is cooled and soil is frozen, the frozen soil freezing pump is communicated with a water collector through a pipeline, the water collector is communicated with a water outlet of the U-shaped pipe through a PID (proportion integration differentiation) adjusting valve, a water distributor is communicated with a water inlet of the U-shaped pipe through a pipeline, and the water distributor is communicated with the anti-freezing agent water tank through a pipeline; and a frozen soil temperature sensor and a frozen soil pressure sensor are also arranged in the soil layer where the U-shaped pipe is located.
The PID regulating valve is convenient for people to control the freezing effect of the frozen soil through the master control box so as to control the liquid flow rate inside the freezing soil, the frozen soil temperature sensor is used for detecting the temperature inside the soil, the frozen soil pressure sensor can detect the freezing effect of the frozen soil when the frozen soil is frozen according to the pressure generated by the frozen expansion of the soil, the frozen soil pressure sensor and the frozen soil pressure sensor are matched with each other so as to be convenient for workers to know the temperature condition of the frozen soil layer constantly, and then the opening states of the first refrigeration equipment and the second refrigeration equipment can be regulated by the workers according to the feedback conditions of the two sensors, for example, when the temperature inside the soil is high and the expansion pressure inside the soil is low, the workers can simultaneously open the first refrigeration equipment and the second refrigeration equipment, when the temperature inside the soil is low and the expansion pressure inside the soil is high, the workers can properly reduce the working quantity of the refrigeration equipment, and, if the effect of freezing soil meets the requirement, people can stop the first refrigeration equipment and the second refrigeration equipment in time, so that the purpose of energy conservation is achieved.
The system also comprises a liquid level sensor, an antifreeze concentration sensor and a tank water pump, wherein the liquid level sensor and the antifreeze concentration sensor are arranged inside the antifreeze water tank; wherein, the tank water pump is connected with the antifreeze water tank through a pipeline.
Through set up level sensor and antifreeze concentration sensor in the antifreeze water tank, people can detect out antifreeze concentration and liquid level height in the antifreeze water tank according to antifreeze concentration sensor and level sensor to be convenient for increase the antifreeze in the antifreeze water tank and/or adjust the inside liquid level of antifreeze water tank and the antifreeze content of antifreeze reaches the standard value through the case water pump to the inside increase and decrease water yield of antifreeze water tank.
Preferably, the first refrigeration equipment, the frozen soil temperature sensor, the frozen soil pressure sensor, the first refrigerating pump, the cooling tower, the tower water pump, the first temperature sensor, the first pressure sensor, the second temperature sensor, the second pressure sensor, the frozen soil refrigerating pump, the PID regulating valve, the second compressor, the second condenser, the second throttle valve, the air energy radiator, the liquid level sensor, the antifreeze concentration sensor and the box water pump are all in communication connection with the master control box.
The refrigeration system comprises the following specific operation steps:
s1: precooling a U-shaped pipe in the soil by adopting liquid nitrogen;
s2: detecting the liquid level and the antifreeze concentration in an antifreeze water tank through a liquid level sensor and an antifreeze concentration sensor, adding antifreeze into the antifreeze water tank, and increasing and decreasing water quantity into the antifreeze water tank through a tank water pump to adjust the liquid level in the antifreeze water tank and the antifreeze content to reach standard values;
s3: opening a master control box to detect the temperature of the soil through a frozen soil temperature sensor;
s4: if the temperature is higher than 0 ℃, firstly starting a tower water pump, then starting a cooling pump, starting a cooling tower and cooling a first condenser in the first refrigeration equipment in the working process through the cooling tower;
s41: detecting the temperature of the outlet water in the first condenser through a temperature sensor, and starting a fan in the cooling tower if the temperature is higher than 35 ℃;
s5: starting a first refrigerating device and a frozen soil refrigerating pump, wherein the first refrigerating device exchanges heat with liquid in an antifreeze water tank through the first refrigerating pump and outputs cold energy to the liquid in the antifreeze water tank, and then the frozen soil refrigerating pump inputs low-temperature liquid in the antifreeze water tank into a U-shaped pipe and exchanges heat with soil through the U-shaped pipe;
s6: the freezing pressure of soil is tested through the frozen soil pressure sensor, if the pressure is small, the second compressor, the second condenser and the second throttle valve are opened, the second compressor, the second condenser, the second throttle valve and the coil pipe are matched with each other, the coil pipe is cooled, so that the cold quantity of the anti-freezing agent water tank is increased, the freezing speed of the soil is improved, when the frozen soil is frozen and the temperature in the soil is reduced, the tower water pump is firstly closed, then the refrigeration equipment is closed, and finally the master control box is closed.
This embodiment still includes mobile terminal, mobile terminal with total accuse case communication connection, mobile terminal can be the cell-phone, high in the clouds or LED display screen, people can be through these mobile terminal and control the communication between the case and come the first refrigeration plant of control, frozen soil temperature sensor, frozen soil pressure sensor, first refrigerating pump, the cooling tower, the tower water pump, temperature sensor, pressure sensor, frozen soil refrigerating pump, the PID governing valve, the second compressor, the second condenser, the second choke valve, level sensor, antifreeze concentration sensor and case water pump etc. equipment come control whole refrigerating system's operation.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. A frozen soil refrigerating system is characterized in that: comprises an antifreeze water tank, a first refrigeration device and a U-shaped pipe,
the first refrigeration equipment comprises a first evaporator, the first evaporator is communicated with the antifreeze water tank through a pipeline, and the antifreeze water tank is communicated with the U-shaped pipe; and a coil is arranged in the antifreeze water tank.
2. The frozen soil refrigeration system of claim 1, wherein: the first refrigeration equipment further comprises a first compressor, a first condenser and a first throttling valve, the first compressor is communicated with the first condenser through a pipeline, the first condenser is communicated with the first throttling valve through a pipeline, the first throttling valve is communicated with the first evaporator through a pipeline, and the first evaporator is communicated with the first compressor through a pipeline.
3. The frozen soil refrigeration system of claim 2, wherein: the water outlet of the first evaporator is communicated with a first refrigerating pump through a pipeline, the water outlet of the first refrigerating pump is communicated with the water inlet of the antifreeze water tank through a pipeline, and the water outlet of the antifreeze water tank is communicated with the water inlet of the first evaporator through a pipeline;
wherein, the inside of first evaporimeter still is provided with second temperature sensor and second pressure sensor.
4. The frozen soil refrigeration system of claim 3, wherein: the water outlet of the first condenser is communicated with a cooling tower through a pipeline, the water outlet of the cooling tower is communicated with a cooling pump through a pipeline, and the water outlet of the cooling pump is communicated with the water inlet of the first condenser through a pipeline;
wherein the cooling tower is also communicated with a tower water pump through a pipeline; the first condenser is internally provided with a first temperature sensor and a first pressure sensor.
5. The frozen soil refrigeration system according to any one of claims 1, 2 or 4, wherein: one end of the coil pipe is communicated with a second compressor, the second compressor is communicated with a second condenser through a pipeline, the second condenser is communicated with a second throttling valve through a pipeline, and the second throttling valve is communicated with the other end of the coil pipe;
wherein, the second condenser is also connected with an air energy radiator.
6. The frozen soil refrigeration system of claim 5, wherein: the anti-freezing agent water tank is communicated with a frozen soil freezing pump through a pipeline, the frozen soil freezing pump is communicated with a water collector through a pipeline, the water collector is communicated with a water outlet of the U-shaped pipe through a PID (proportion integration differentiation) regulating valve, a water inlet of the U-shaped pipe is communicated with a water separator through a pipeline, and the water separator is communicated with the anti-freezing agent water tank through a pipeline;
and a frozen soil temperature sensor and a frozen soil pressure sensor are also arranged in the soil layer where the U-shaped pipe is located.
7. The frozen soil refrigeration system of claim 6, wherein: also comprises a liquid level sensor, an antifreeze concentration sensor and a tank water pump,
the liquid level sensor and the antifreeze concentration sensor are arranged inside the antifreeze water tank; the tank water pump is connected with the antifreeze water tank through a pipeline.
8. The frozen earth refrigeration system of claim 7, wherein: first refrigeration plant, frozen soil temperature sensor, frozen soil pressure sensor, first freeze pump, cooling tower, tower water pump, first temperature sensor, first pressure sensor, second temperature sensor, second pressure sensor, frozen soil freeze pump, PID governing valve, second compressor, second condenser, second choke valve, air can radiator, level sensor, antifreeze concentration sensor and case water pump all with total collection box communication connection.
9. The frozen soil refrigeration system of claim 8, wherein: the mobile terminal is in communication connection with the master control box.
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| CN202020190238.6U CN211601216U (en) | 2020-02-19 | 2020-02-19 | Frozen soil refrigerating system |
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| CN202020190238.6U CN211601216U (en) | 2020-02-19 | 2020-02-19 | Frozen soil refrigerating system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111174472A (en) * | 2020-02-19 | 2020-05-19 | 昆山闻铭制冷设备有限公司 | Frozen soil refrigerating system and using method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111174472A (en) * | 2020-02-19 | 2020-05-19 | 昆山闻铭制冷设备有限公司 | Frozen soil refrigerating system and using method thereof |
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