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CN-122015421-A - Intelligent precooler and method based on natural gas pretreatment

CN122015421ACN 122015421 ACN122015421 ACN 122015421ACN-122015421-A

Abstract

The application discloses an intelligent precooler and a method based on natural gas pretreatment, and relates to the technical field of natural gas pretreatment; the intelligent liquid supplementing mechanism can realize automatic supplement of the cooling liquid, the floating plate synchronously rises and falls along with the liquid level of the cooling liquid in the pre-cooling box to drive the movable plate and the contact ball to move, when the contact ball is separated from the contact sensor, the contact sensor transmits a signal to the relay, the relay drives the contactor to start the first water pump, the cooling liquid in the liquid supplementing box is conveyed to the pre-cooling box through the supplementing pipe, the contact ball is in contact with the contact sensor again after the liquid level is returned, the water pump stops working, and no artificial on-duty supplement is needed, so that the natural gas cooling effect is prevented from being reduced due to the cooling liquid deficiency.

Inventors

  • SUN WENFU
  • Wan benhong
  • GAO XUENONG

Assignees

  • 扬州禾浦晟能源装备科技有限公司

Dates

Publication Date
20260512
Application Date
20260324

Claims (8)

  1. 1.An intelligent precooler based on natural gas pretreatment comprises a precooling box and is characterized in that a gas transmission pipe is fixedly penetrated in the precooling box, an intelligent liquid supplementing mechanism is arranged at the top of the precooling box and used for automatically supplementing cooling liquid missing in the precooling box, and a filtering mechanism used for filtering the cooling liquid is arranged at the top of the precooling box; The intelligent fluid infusion mechanism comprises a transverse plate fixedly connected with a pre-cooling box, the top end of the transverse plate is fixedly provided with a fluid infusion box, the top end of the transverse plate is fixedly provided with a support, one side of the support is fixedly provided with a first water pump, two output ends of the first water pump are fixedly provided with supplementing pipes, the two supplementing pipes are respectively located inside the fluid infusion box and the pre-cooling box, the other side of the support is fixedly provided with a contactor and a relay, the contactor is electrically connected with the first water pump, the outer side of the support is fixedly provided with a connecting box, the inner part of the connecting box is movably provided with a movable plate, the inner part of the movable plate is fixedly provided with a floating plate, the top end of the movable plate is fixedly provided with a contact ball, the inner part of the connecting box is movably provided with a stabilizing plate, and the middle part of the stabilizing plate is fixedly penetrated with a contact sensor, the contact sensor is contacted with the contact ball, and the contact sensor is electrically connected with the relay.
  2. 2. The intelligent precooler based on natural gas pretreatment according to claim 1, wherein the filtering mechanism comprises a first infusion tube fixedly connected with a precooling box, one end of the first infusion tube is fixedly connected with a filtering box, a first filtering plate, a second filtering plate and an activated carbon plate are detachably arranged in the filtering box, the mesh number of the first filtering plate is lower than that of the second filtering plate, a second water pump is fixedly arranged at the top end of the precooling box, two second infusion tubes are fixedly arranged at two output ends of the second water pump, and the two second infusion tubes are respectively arranged in the filtering box and the precooling box.
  3. 3. The intelligent precooler based on natural gas pretreatment as claimed in claim 2, wherein a cooling tank is fixedly installed at the top end of the precooling tank, a fan is fixedly installed at the top of the cooling tank, and the first infusion tube penetrates through the cooling tank.
  4. 4. The intelligent precooler based on natural gas pretreatment as claimed in claim 1, wherein a supporting plate is fixedly installed at the top end of the stabilizing plate, a threaded rod is rotatably installed at the top of the supporting plate, and the threaded rod is inserted into the top of the connecting box.
  5. 5. The intelligent precooler based on natural gas pretreatment as claimed in claim 4, wherein two groups of vertical rods and limiting rods which are symmetrically distributed are fixedly installed in the connecting box, and the vertical rods and the limiting rods penetrate through the stabilizing plate and the movable plate respectively.
  6. 6. The intelligent precooler based on natural gas pretreatment as claimed in claim 1, wherein a buzzer is fixedly arranged at the top end of the support, and the buzzer is electrically connected with the relay.
  7. 7. The intelligent precooler based on natural gas pretreatment as claimed in claim 3, wherein a window is fixedly arranged on the outer side of the precooler box, and the window is made of transparent materials.
  8. 8. A method of using the intelligent pre-cooler based on natural gas pretreatment of claim 3, comprising the steps of: Firstly, natural gas is filled into a gas transmission pipe, so that the temperature in the natural gas is transmitted to cooling liquid in a pre-cooling box, then the cooling liquid enters a first infusion pipe, the cooling liquid in the first infusion pipe is cooled by a fan, and the cooled cooling liquid enters the pre-cooling box again, and the cooling treatment of the natural gas is realized by circulation; step two, when the liquid level is reduced due to volatilization of the cooling liquid after a certain time cycle, the cooling liquid in the liquid supplementing box enters the pre-cooling box through the intelligent liquid supplementing mechanism, so that automatic supplementation of the cooling liquid is realized, and the reduction of the cooling effect on the natural gas due to volatilization of the cooling liquid in the pre-cooling box is avoided; Step three, through the filtering mechanism who sets up, when the inside coolant liquid of first transfer line enters into filtering mechanism, the inside subassembly of accessible filtering mechanism filters the impurity in the coolant liquid, avoids impurity to weaken the heat transfer ability of coolant liquid.

Description

Intelligent precooler and method based on natural gas pretreatment Technical Field The invention relates to the technical field of natural gas pretreatment, in particular to an intelligent precooler and method based on natural gas pretreatment. Background Before liquefaction, transportation or deep processing, the natural gas is required to be subjected to pretreatment procedures to remove water, impurities and other harmful substances, and precooling is a key link in the pretreatment process, so that the temperature of the natural gas is reduced, favorable conditions are created for the subsequent dehydration and purification processes, the liquefaction rate of the natural gas can be improved, and the energy consumption of the subsequent treatment is reduced; The utility model has the beneficial effects that the precooling tank is internally provided with precooling liquid, the first cooling pipe is arranged in the precooling liquid, the precooling liquid cools the liquefied natural gas flowing in the first cooling pipe, so that the equipment precools the liquefied natural gas, the equipment precools the liquefied natural gas uniformly through the first cooling pipe, the precooling effect of the liquefied natural gas is improved, the precooled liquefied natural gas is transferred to a designated place through a liquid outlet pipe, the precooling liquid precools the liquefied natural gas, the temperature of the precooling liquid can rise, the precooling liquid in the precooling tank enters into a second cooling pipe through the operation of a water pump, the precooling liquid in the second cooling pipe is cooled by low-temperature gas produced by a refrigerator, the temperature of the precooling liquid is ensured to be normal, and the service life of the precooling liquid is prolonged; Based on the search of patent numbers, the following defects in the prior art are combined: Above-mentioned patent has guaranteed through first cooling tube that equipment precools liquefied natural gas is even, has improved liquefied natural gas precooling effect, works through the refrigerator, makes the low temperature gas of refrigerator production cool down to the precooling liquid in the second cooling tube, but the coolant liquid in above-mentioned patent needs manual work to supplement, needs the staff often to observe liquid level height, has not only increased staff's operation burden and human cost, still easily because of subjectivity, the timeliness of manual observation are not enough, appear that the liquid level is too low can't satisfy the cooling heat transfer demand, lead to precooling effect decline, the problem that equipment heat transfer efficiency reduces. Disclosure of Invention The invention aims to solve the problem that cooling liquid cannot be automatically supplemented, and provides an intelligent precooler and an intelligent precooling method based on natural gas pretreatment. In order to solve the technical problems, the intelligent precooler based on the natural gas pretreatment comprises a precooling box, wherein a gas pipe fixedly penetrates through the inside of the precooling box, an intelligent liquid supplementing mechanism is arranged at the top of the precooling box and is used for automatically supplementing cooling liquid missing in the precooling box, and a filtering mechanism for filtering the cooling liquid is arranged at the top end of the precooling box; the intelligent fluid infusion mechanism comprises a diaphragm fixedly connected with a pre-cooling box, the top end of the diaphragm is fixedly provided with a fluid infusion box, the top end of the diaphragm is fixedly provided with a support, one side of the support is fixedly provided with a first water pump, two output ends of the first water pump are fixedly provided with supplementing pipes, the two supplementing pipes are respectively located inside the fluid infusion box and the pre-cooling box, the other side of the support is fixedly provided with a contactor and a relay, the contactor is electrically connected with the first water pump, the outer side of the support is fixedly provided with a connecting box, the inside of the connecting box is movably provided with a movable plate, the inside of the movable plate is fixedly provided with a floating plate, the top end of the movable plate is fixedly provided with a contact ball, the inside of the connecting box is movably provided with a stabilizing plate, the middle part of the stabilizing plate is fixedly penetrated with a contact sensor, the contact sensor is contacted with the contact ball, and the contact sensor is electrically connected with the relay. Preferably, the filter mechanism comprises a first infusion tube fixedly connected with the precooling box, one end of the first infusion tube is fixedly connected with the filtering box, a first filter plate, a second filter plate and an active carbon plate are detachably mounted in the filtering box, the mesh nu