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CN-224220749-U - Hot water recirculation water bath type vaporizer

CN224220749UCN 224220749 UCN224220749 UCN 224220749UCN-224220749-U

Abstract

The utility model discloses a hot water recirculation water bath type vaporizer which comprises a tank body, a plurality of heat exchange pipes, a circulating pipe and a circulating pump, wherein two ends of the circulating pipe are respectively positioned above and below the heat exchange pipes, the heat exchange pipes are enclosed to form a ring shape, a heating pipe penetrating through the ring shape is longitudinally arranged in the tank body, a plurality of radiating holes are formed in the lower portion of the outer wall of the heating pipe, a steam connecting pipe is arranged at the upper end of the heating pipe, and the inner diameter of the steam connecting pipe is larger than that of the heating pipe. When the high-gas-yield use requirement is met, the circulating pump drives the heat medium to flow back and forth from bottom to top, so that the gasification speed and the gasification amount of the low-temperature liquid are accelerated. Under the condition that the circulating pump does not work or intermittently works in face of the use requirement of low gas yield, the temperature of the upper part of the tank body can not be too low due to the heat emitted by the heat exchange tube, the situation that gas is liquefied again is prevented, the energy consumption is less, and the cost performance is high.

Inventors

  • CHEN HONGWEI
  • ZHAO XIN
  • LI YUNING
  • LAI HANDONG

Assignees

  • 杭州川空通用设备有限公司

Dates

Publication Date
20260512
Application Date
20250520

Claims (10)

  1. 1. A hot water recirculation water bath type vaporizer is characterized by comprising a tank body, a plurality of heat exchange tubes, a circulating tube and a circulating pump, wherein the tank body is longitudinally arranged, the heat exchange tubes are arranged in the middle of the tank body, the circulating tube is arranged on the outer wall of the tank body, the circulating pump is arranged on the circulating tube, two ends of the circulating tube are respectively located above and below the heat exchange tubes, the heat exchange tubes are enclosed to form an annular shape which is coaxially arranged with the tank body, a heating tube penetrating through the annular shape is longitudinally arranged in the tank body, a plurality of scattered holes are formed in the lower portion of the outer wall of the heating tube and are communicated with the heating tube, a steam connecting tube is arranged at the upper end of the heating tube, and the inner diameter of the steam connecting tube is larger than that of the heating tube.
  2. 2. The vaporizer of claim 1, wherein two annular pipes are respectively arranged above and below the heat exchange pipe in the tank body, the diameters of the two annular pipes are unequal, the annular pipes are communicated with the heat exchange pipe, an output pipe communicated with the two adjacent annular pipes is arranged at the upper part of the tank body, a large-diameter pipe extending out of the upper part of the tank body is arranged at the upper end of the output pipe, and the inner diameter of the large-diameter pipe is larger than that of the output pipe.
  3. 3. The vaporizer of claim 2, wherein a liquid level pipe is provided at an upper portion of an outer wall of the tank, lower and upper ends of the liquid level pipe are respectively located below and above the upper two annular pipes, and both ends of the liquid level pipe are respectively communicated with an inside of the tank.
  4. 4. A carburetor according to any one of claims 2-3, wherein an input pipe communicating with two adjacent annular pipes is provided at the lower part of the tank, a small diameter pipe communicating with the input pipe is provided at the lower end of the input pipe, the inner diameter of the small diameter pipe is smaller than the inner diameter of the input pipe, and the small diameter pipe extends from the outer wall of the lower part of the tank.
  5. 5. The vaporizer of claim 4, wherein the inlet tube and the outlet tube are each positioned within a corresponding one of the annular tubes, and wherein the inlet tube and the outlet tube are positioned at extreme positions remote from each other.
  6. 6. A vaporizer according to any of claims 2-3, wherein a plurality of uniformly distributed sleeves are arranged on the outer wall of the annular tube towards one side of the heat exchange tube, stepped holes are formed in the tail ends of the sleeves, connecting tubes are inserted into the stepped holes, and the connecting tubes are communicated with the heat exchange tube.
  7. 7. A carburetor according to any one of claims 2 to 3, wherein the upper end of the circulation pipe is opposed to the middle portions of the two upper annular pipes.
  8. 8. A vaporizer according to any of claims 2 to 3, wherein the outer wall of the tank body is provided with a first temperature control pipe orifice facing the middle part of the heat exchange pipe, and the outer wall of the tank body is provided with a second temperature control pipe orifice facing the middle parts of the two lower annular pipes.
  9. 9. A vaporizer according to any of claims 1-3, wherein a support is provided at the bottom end in the middle position of the tank, the lower end of the heating pipe is provided on the support, an elbow is provided at the upper end of the heating pipe, the steam pipe is provided at the upper end of the elbow, and the steam pipe extends above the tank.
  10. 10. A vaporizer according to any of claims 1 to 3, wherein the heat exchange tube is spiral, a bracket is provided at the lower part of the outer wall of the tank body, the circulation pump is provided at the upper end of the bracket, the circulation tube comprises a lower tube communicating with the inlet of the circulation pump and an upper tube communicating with the outlet of the circulation pump, and the upper end of the lower tube and the lower end of the upper tube are horizontally provided on the circulation pump.

Description

Hot water recirculation water bath type vaporizer Technical Field The utility model belongs to the technical field of air separation equipment, and particularly relates to a hot water recirculation water bath type vaporizer. Background The equipment which is equipped in the air separation equipment field during the low-temperature liquid gasification is provided with a water bath type vaporizer. The common water bath type vaporizer design technology has the problems and disadvantages that 1. The water bath type vaporizer device only relies on steam to heat water in the shell, the water temperature rises to enable low-temperature liquid passing through a heat exchange tube arranged in the shell to absorb heat, the liquid vaporization is realized, the gas is supplied to a user, and the hot water circulation is not fully utilized to increase the vaporization amount of the low-temperature liquid. 2. The heating steam enters the shell through the pipeline channel to raise the water temperature, and the temperature and flow of the gas directly influence the gasification effect of the low-temperature liquid. When the gasification amount of the low-temperature liquid needs to be enlarged, the steam consumption is increased or the temperature of the steam is increased, so that the cost of the steam heat source is increased. The chinese patent document with publication number CN209926014U discloses a hot water circulation type water bath vaporizer, which comprises a barrel, the side bottom left end of barrel is equipped with steam and advances the pipe, the bottom that steam advances the pipe is connected with annular steam spray pipe, the bottom side of annular steam spray pipe is equipped with annular steam spray pipe support, is located steam and advances the side of pipe rear side at the barrel and be equipped with liquid oxygen and advance the pipe, the right-hand member that liquid oxygen advances the pipe is connected with the energy exchange tube, the side of energy exchange tube is fixed through central support, energy exchange tube and liquid oxygen advance the pipe and pass through fixed support and fix, the top of energy exchange tube is connected with the oxygen outlet branch pipe, the one end that the oxygen outlet branch pipe is close to each other is connected with the oxygen outlet main pipe. In the above-mentioned patent scheme, pump into hot steam through annular steam shower to the bottom of barrel, make the water circulation of barrel upper and lower part circulate through circulating water pump, but when facing the user demand of low gas production, start circulating water pump often can cause the gas production surplus, also relatively extravagant resource. The circulating water pump is not started, the heat transfer speed of the hot water at the bottom of the cylinder body to the upper part is originally slower, so that the gas production speed is slow, the middle part can absorb heat by the energy exchange tube, even the temperature of the upper part of the cylinder body is low, and the vaporized gas is further caused to be liquefied at the upper part. Disclosure of utility model In order to overcome the technical problems that when the circulating water bath vaporizer in the prior art is faced with the use requirement of low gas production, the circulating water pump is started to cause surplus gas production and resource waste, but the circulating water pump is not started, the heat at the bottom can not be effectively conducted to the upper part of the cylinder, the gas production speed is low, and even the gas is liquefied again. The utility model aims to provide a hot water recirculation water bath type vaporizer, which is characterized in that a heating pipe is arranged in the middle of a tank body from top to bottom, a heat exchange pipe is arranged around the periphery of the heating pipe, a scattering hole for ejecting steam is arranged at the bottom of the heating pipe, a circulating pump can enable a heating medium at the lower part of the tank body to flow upwards when the use requirement of high gas yield is met, the circulating pump does not work or intermittently work when the use requirement of low gas yield is met, and the heat emitted by the heating pipe can maintain the temperature at the upper part of the tank body, so that the upper part of the tank body can not be supercooled, and gas liquefaction is caused. The hot water recycling water bath vaporizer comprises a tank body, a plurality of heat exchange pipes, a circulating pipe and a circulating pump, wherein the tank body is longitudinally arranged, the heat exchange pipes are arranged in the middle of the tank body, the circulating pipe is arranged on the outer wall of the tank body, the circulating pump is arranged on the circulating pipe, two ends of the circulating pipe are respectively positioned above and below the heat exchange pipes, the heat exchange pipes are enclosed to form an annular shape which is coaxial