6results about How to "Enable leak detection" patented technology

The invention discloses an oil pipeline leakage monitoring method based on a pipeline transportation pressure prediction model, and relates to the technical field of pipeline leakage monitoring, and the method comprises the steps: building a pipeline transportation pressure prediction model through the pressure data of each preset position on a preset oil pipeline when the preset oil pipeline is in a normal transportation working condition; inputting the actual pressure of each preset position at the first moment into a pipeline transportation pressure prediction model, calculating to obtain the predicted pressure of each preset position at the second moment, and calculating the pressure deviation between the predicted pressure and the actual pressure of each preset position at the second moment; and whether the pressure deviation corresponding to each preset position exceeds a corresponding preset pressure deviation threshold value or not is judged, and when the pressure deviation corresponding to any preset position exceeds the preset pressure deviation threshold value corresponding to the preset position, it is judged that the preset oil pipeline leaks. Whether the pipeline leaks or not can be accurately judged.

The invention provides an air conditioning system and a detection method, and the air conditioning system comprises a heat exchange pipeline arranged in a heat exchange space; the heat exchange pipeline is used for conveying a refrigerant; the refrigerant leakage sensor is arranged in the heat exchange space; the air supply structure is arranged in the heat exchange space; the air supply structure is used for blowing air in the heat exchange space to the refrigerant leakage sensor; according to the air conditioning system, the problem that when the indoor unit is shut down or a draught fan of the indoor unit breaks down, the refrigerant leakage sensor cannot detect whether refrigerant leakage exists in the external environment of the indoor unit or not is solved.

The invention relates to the technical field of leakage detection structures of freezing dryer evaporators, in particular to a leakage detection structure of a freezing dryer evaporator, which comprises a freezing dryer case, an evaporator group is arranged in the freezing dryer case, the evaporator group comprises a compressor, and a pipeline interface of the compressor is connected with an evaporation pipe. Soap is cut into slices, the slices are soaked in warm water to be dissolved into thick liquid soap, the liquid soap is poured into a second liquid storage cylinder and a first liquid storage cylinder, the liquid soap in the first liquid storage cylinder and the second liquid storage cylinder permeates a first sponge block and a second sponge block through a pipeline, a movable block moves in a guide groove of a hanging plate, and the second sponge block and the second sponge block are hung on the hanging plate. The first sponge block and the second sponge block are used for wiping the surface of the evaporation pipe, liquid soap is evenly smeared on the surface of the evaporation pipe, when leakage occurs on the surface of the evaporation pipe, leaked gas impacts the liquid soap, bubbles can be formed on the surface of the liquid soap, then the leakage position is found quickly, and convenience of leakage detection of the evaporation pipe is guaranteed.

A flexible composite pipe integrating heat insulation and intelligent tracking functions, and its manufacturing equipment, relates to the field of flexible composite pipe production and manufacturing technology. The flexible composite pipe includes, from the inside out, an inner lining layer, a reinforcing layer, an inner protective layer, a heat insulation layer, a wrapping layer, and an outer protective layer. The reinforcing layer is woven from reinforcing fiber tapes. The weaving equipment used is a reinforcing fiber weaving device, including a warp pay-off spool, a warp guide rod, a warp tape, a weft pay-off ring, and a weft tape. The warp guide rod swings radially in the warp pay-off spool. The weft pay-off ring has a notch in the circumferential direction. Each time the weft pay-off ring rotates, the notch aligns with each warp guide rod. Each alignment causes the warp guide rod to swing from one extreme position to another through the notch. The weft tape rotates circumferentially around the composite pipe. The interweaving between the warp tape and the weft tape forms a weave, creating a mesh-like reinforcing layer. This invention uses the weaving of strip-shaped reinforcing fibers, which is significantly more efficient than the weaving of linear reinforcing fibers.

The present application provides a device and method for detecting leakage of a mechanical seal assembly, the device comprising a desalted water tank, a water pump inlet valve, a water pump, a pressure relief valve, a water pump outlet valve, a filter, a pressure regulating valve, a first pressure gauge, a second pressure gauge, a steam trap, a water supply pipeline, a mechanical seal assembly test chamber, a chamber support rod, an oil-water collection measuring cup, a transmission chain, a high- and low-pressure collection measuring cup, a reducer, and a motor. The outlet of the leakage pipeline connected to the oil leakage collection port and the oil-water leakage collection port is located above the oil-water collection measuring cup, and the outlet of the leakage pipeline connected to the low-pressure leakage collection port and the high-pressure leakage collection port is located above the high- and low-pressure collection measuring cup. Two liquid level probes are respectively placed in the oil-water collection measuring cup and the high- and low-pressure collection measuring cup to monitor the leakage rate using the two liquid level probes. The present application solves the current problem of how to measure the leakage of a mechanical seal assembly by connecting a leakage pipeline and a corresponding measuring cup at the mechanical seal.

The invention relates to a side channel leakage detection method and device based on Frobenius distance similarity, and belongs to the technical field of information. The method comprises the following steps: calculating a correlation coefficient between each power consumption sequence in a power consumption curve segment and an overall power consumption sequence, and adding a weight determined by the correlation coefficient into the power consumption curve segment to form a weighted curve segment; dividing the weighted curve segment into weighting matrixes corresponding to a fixed plaintext and a random plaintext, and calculating a Frobenius distance between the weighting matrix of the fixed plaintext and the weighting matrix of the random plaintext; whether similarity exists between the two power consumption curve segments or not is judged according to the relation between the Frobenius distance between the two fixed plaintext weighting matrixes and the random plaintext weighting matrix and the distance threshold value, and then leakage detection is achieved. According to the method, the related information between the sequences is added in the detection of the sequence related power consumption curve segment, and the weighted curve segment is obtained through the related information, so that the available information amount for detection is increased, the detection efficiency is improved, and the problem of missing detection caused by limited sample size in the TVLA technology is solved.