Non-contact natural gas dehydration heating device

Abstract

The application discloses a non-contact natural gas dehydration heating equipment and relates to the technical field of natural gas processing.The first spiral heating pipe and the second spiral heating pipe arranged in a spiral cross manner are arranged in the isolation heating barrel, so that the natural gas can be fully heat-exchanged during conveying.The natural gas is heated in isolation from high-temperature water, water mist entrained in the natural gas can be effectively evaporated, and the water-vapor separation efficiency is improved.Compared with a traditional single-stage heat-exchange pipe line design, the staggered spiral pipe increases the heating area and the heat transfer path, so that the fine water mist particles in the natural gas can be completely gasified, and a good premise is provided for subsequent condensation separation; the condensation separation piece adopts a rotating structure, and grooves are arranged on the surface, so that the condensation area and the water drop adhesion capacity are significantly increased.Meanwhile, the centrifugal force is generated during the rotation of the separation piece, the condensed water can be quickly thrown away from the surface, the condensed water can enter the collecting groove and be guided to the water storage pool, and the water drops are prevented from being mixed into the natural gas again.

Description

Technical Field

[0001] This invention relates to the field of natural gas processing technology, specifically to a non-contact natural gas dehydration and heating device. Background Technology

[0002] Most common natural gas dehydration heating equipment currently uses direct heat exchange or single-stage pipeline heating. After natural gas enters the heating chamber, it is usually heated through a straight pipe heating structure or a limited number of coils to evaporate the water mist in the natural gas. This results in water vapor separation in the dehydration unit often relying on static condenser plates or natural sedimentation. The condenser plates have a limited surface area, and the condensed water droplets easily adhere to the plate surface or flow back, making complete separation from the natural gas impossible. This leads to a high residual moisture content in the finished gas, affecting transportation and usage safety. In terms of drainage and maintenance, traditional equipment mostly requires manual periodic drainage of condensate, lacking automatic control. Untimely drainage can cause the water level in the storage chamber to rise, or even flow back into the natural gas pipeline, affecting the purity of the natural gas. Summary of the Invention

[0003] To overcome the shortcomings of the prior art, the present invention provides the following technical solution: a non-contact natural gas dehydration heating device, comprising an isolation heating tank, wherein a first spiral heating tube and a second spiral heating tube are arranged in a spirally intersecting manner at the axial position inside the isolation heating tank, the bottom ends of the first spiral heating tube and the second spiral heating tube are connected by an intermediate connecting tee, and a cleaning pipe is fixedly connected to the intermediate connecting tee, wherein an air inlet pipe and a separate exhaust pipe are respectively fixedly connected to the top ends of the first spiral heating tube and the second spiral heating tube, wherein the air inlet pipe and the separate exhaust pipe extend to the outside of the isolation heating tank. On the side, the top of the isolation heating barrel is fixedly and sealed to a pressure control chamber; a middle air intake pipe is fixedly connected to the separation exhaust pipe, and a partition air plate is fixedly connected to the bottom end of the middle air intake pipe; a middle outer shell is coaxially sleeved on the outside of the isolation heating barrel, wherein the partition air plate is fixedly and sealed between the inner wall of the middle outer shell and the isolation heating barrel, and the partition air plate divides the middle outer shell into upper and lower spaces, wherein the middle air intake pipe is connected to one of the lower spaces, and the partition air plate has multiple through holes for connecting the upper and lower spaces, and the sum of the cross-sectional areas of all the through holes is equal to the inner diameter cross-sectional area of ​​the middle air intake pipe.

[0004] Preferably, the first and second spiral heating tubes are fixed to the inner wall of the isolation heating barrel by a fixing plate; the top end of the cleaning tube extends to the outside of the pressure control chamber, and the connection between the cleaning tube and the pressure control chamber is sealed; a valve is connected to the end of the cleaning tube away from the intermediate connecting tee; the cleaning tube is fixedly connected to the top of the inner wall of the isolation heating barrel by a reinforcing frame; the connection between the air inlet pipe and the separate exhaust pipe and the isolation heating barrel is sealed; a pressure pump is fixedly installed on the outer surface of the pressure control chamber, and the pressure control chamber is also equipped with a pressure control hole communicating with the inside of the pressure control chamber. The pressure control hole is connected to the air outlet of the pressure pump, and a pressure gauge is installed inside the pressure control chamber to monitor the pressure inside the isolation heating barrel and the pressure control chamber; the isolation heating barrel is filled with water that covers the first spiral heating tube, the second spiral heating tube, the air inlet pipe, and the separate exhaust pipe.

[0005] Preferably, a water storage tank is fixedly installed on the inner wall of the middle outer shell, and a drain pipe is also fixedly and sealed on the middle outer shell. The bottom end of the drain pipe extends to the bottom of the inner wall of the water storage tank, and a gap is left between the bottom end of the drain pipe and the bottom of the inner wall of the water storage tank. An electrically controlled valve is connected in series in the middle of the outer side of the middle outer shell.

[0006] Preferably, a supporting insulation body is coaxially fixedly installed on the middle outer shell, a collection shielding groove is fixedly installed on the inner side of the supporting insulation body, a sliding heat-conducting plate is fixedly installed on the top of the inner wall of the supporting insulation body, a sliding heat-conducting moving plate is rotatably and slidably contacted on the lower surface of the sliding heat-conducting plate, and multiple condensation separation plates are fixedly installed in a circular array along the radial direction of rotation on the lower surface of the sliding heat-conducting moving plate. The surface of each condensation separation plate is provided with a groove along the radial direction of the sliding heat-conducting moving plate (to increase the surface area of ​​the condensation separation plate).

[0007] Preferably, the sliding heat-conducting disc is rotatably mounted on the circumferential surface of the insulating heating barrel. A separation bushing is coaxially fixed on the sliding heat-conducting disc, and the separation bushing is also rotatably mounted on the circumferential surface of the insulating heating barrel. A cooling water channel plate is provided above the sliding heat-conducting fixed disc, and a refrigerant diode is provided in contact between the opposite surfaces of the cooling water channel plate and the sliding heat-conducting fixed disc. The cooling water channel plate is provided with an inlet and an outlet, and a circulating water channel is provided inside the cooling water channel plate. The inlet and outlet of the cooling water channel plate are connected to the heat dissipation radiator, or the refrigerant diode can be removed, and the cooling water channel plate and the sliding heat-conducting fixed disc can be in direct contact (both require the application of thermal grease). A compressor refrigeration device is used to connect the cold end to the inside of the cooling water channel plate (the evaporation section of the refrigerant is connected to the cooling water channel plate).

[0008] Preferably, an outer shell is fixedly installed on the supporting insulation body. The outer shell is fitted over the outside of the cooling water channel plate. A drive separation motor is fixedly installed on the outer surface of the outer shell. The output shaft of the drive separation motor extends to the inside of the outer shell. The end of the output shaft of the drive separation motor is connected to the separation shaft sleeve by a transmission belt.

[0009] Preferably, the bottom of the collection shielding trough is fixedly connected to a drainage pipe, the bottom end of which extends into the interior of the water storage tank, wherein the bottom surface of the collection shielding trough is a sloped surface inclined toward the drainage pipe.

[0010] Preferably, an exhaust channel is fixedly fitted on the circumferential surface of the isolation heating barrel, a baffle is fixedly installed at the top of the exhaust channel, a gap is provided between the circumferential surface of the baffle and the inner wall of the collection shielding groove, and a gap is provided between the bottom end of the collection shielding groove and the circumferential surface of the exhaust channel to facilitate the flow of gas.

[0011] Preferably, the exhaust channel is hollow inside, and an exhaust pipe is fixedly connected to the bottom of the exhaust channel. One end of the exhaust pipe passes through the middle outer shell, and the connection between the exhaust pipe and the middle outer shell is sealed.

[0012] Preferably, the bottom of the middle outer shell is fixedly mounted on a support base, and a heating base is fixedly mounted on the inner side of the support base. The heating base is in contact with the bottom of the isolation heating tank and is used to heat the water inside the isolation heating tank.

[0013] Compared with the prior art, the present invention has the following advantages: (1) The present invention sets up a first spiral heating tube and a second spiral heating tube arranged in a spiral cross pattern inside the isolation heating tank, so that the natural gas can achieve full heat exchange during transportation. The natural gas is isolated from the high temperature water and heated, which can effectively evaporate the water mist entrained therein and improve the water vapor separation efficiency. Compared with the traditional single-stage heat exchange pipeline design, the staggered spiral tube increases the heating area and heat transfer path, so that the fine water mist particles in the natural gas can be completely vaporized, providing a good premise for subsequent condensation separation; (2) The condensation separation plate of the present invention adopts a rotating structure and has grooves on the surface, which significantly increases the condensation area and water droplet adhesion ability. At the same time, the separation plate generates centrifugal force during rotation, which can quickly throw the condensate off the surface, so that it enters the collection tank and is guided to the water storage tank, avoiding water droplets from being mixed back into the natural gas. Compared with the static condensation plate, the rotating separation plate reduces the liquid droplet residue and improves the dryness of the natural gas; (3) The present invention sets up a pressure control chamber on the isolation heating tank, and cooperates with a gas pressure pump, pressure control hole and electromagnetic pressure relief valve to achieve precise control of the internal water pressure. By controlling the saturation temperature of the water, the heating degree of the natural gas can be flexibly adjusted according to the working conditions; (4) This invention realizes automatic detection and automatic discharge of condensate by setting a liquid level sensor and an electrically controlled valve inside the water storage tank. The water storage tank is connected to the middle shell, and the condensate can be quickly discharged under the action of pressure difference, avoiding the impact of excessive water level on the separation efficiency. Compared with the traditional method of requiring manual drainage at regular intervals, it can realize unattended and continuous operation, greatly improving the automation level and operational stability of the system. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0015] Figure 2 This is a schematic diagram of the air separator structure of the present invention.

[0016] Figure 3 This is a schematic diagram of the exhaust channel structure of the present invention.

[0017] Figure 4 This is a schematic diagram of the structure of the condensation separation plate of the present invention.

[0018] Figure 5 For the present invention Figure 4 Schematic diagram of the structure at point A in the middle.

[0019] Figure 6 This is a schematic diagram of the internal structure of the insulating heating barrel of the present invention.

[0020] Figure 7 This is a schematic diagram of the spiral heating tube structure of the present invention.

[0021] In the diagram: 101-Isolation heating tank; 102-Fixing plate; 103-Reinforcing frame; 104-Pressure control chamber; 105-Pressure control hole; 106-Cleaning pipe; 107-Air pressure pump; 108-First spiral heating tube; 109-Second spiral heating tube; 110-Inlet pipe; 111-Separated exhaust pipe; 112-Intermediate connecting tee; 113-Cooling water channel plate; 114-Refrigeration diode; 115-Sliding heat-conducting fixed plate; 116-Sliding heat-conducting moving plate; 117-Condenser. Separating plate; 118-Collection shielding groove; 119-Drainage pipe; 120-Exhaust pipe; 121-Exhaust passage; 122-Baffle plate; 123-Intermediate air intake pipe; 124-Separating air plate; 125-Heating base; 126-Supporting base; 127-Middle outer shell; 128-Drain pipe; 129-Electrically controlled valve; 130-Water storage tank; 131-Transmission belt; 132-Supporting insulation body; 133-Outer shell cover; 134-Drive separation motor; 135-Separating bushing. Detailed Implementation

[0022] The following is in conjunction with the appendix Figures 1-7 The technical solution of the present invention will be further illustrated through specific embodiments.

[0023] This invention provides a non-contact natural gas dehydration heating device, including an isolation heating tank 101. Inside the isolation heating tank 101, a first spiral heating tube 108 and a second spiral heating tube 109 are arranged in a spirally intersecting pattern at their axial position. The bottom ends of the first spiral heating tube 108 and the second spiral heating tube 109 are connected by an intermediate connecting tee 112. A cleaning pipe 106 is also fixedly connected to the intermediate connecting tee 112. The top ends of the first spiral heating tube 108 and the second spiral heating tube 109 are respectively fixedly connected to an air inlet pipe 110 and a separate exhaust pipe 111, wherein the air inlet pipe 110 and the separate exhaust pipe 111 extend to the outside of the isolation heating tank 101. The top of the container is fixedly sealed and connected to a pressure control chamber 104; a middle air intake pipe 123 is fixedly connected to the separate exhaust pipe 111, and a partition plate 124 is fixedly connected to the bottom end of the middle air intake pipe 123; a middle outer shell 127 is coaxially sleeved on the outer side of the isolation heating barrel 101, wherein the partition plate 124 is fixedly and sealed between the inner wall of the middle outer shell 127 and the isolation heating barrel 101, and the middle outer shell 127 is divided into upper and lower spaces by the partition plate 124, wherein the middle air intake pipe 123 is connected to one of the lower spaces, wherein the partition plate 124 has multiple through holes for connecting the upper and lower spaces, and the sum of the cross-sectional areas of all the through holes is equal to the inner diameter cross-sectional area of ​​the middle air intake pipe 123.

[0024] The first spiral heating tube 108 and the second spiral heating tube 109 are fixed to the inner wall of the isolation heating barrel 101 by a fixing plate 102; the top end of the cleaning tube 106 extends to the outside of the pressure control chamber 104, and the connection between the cleaning tube 106 and the pressure control chamber 104 is sealed; a valve is connected to the end of the cleaning tube 106 away from the intermediate connecting tee 112; the cleaning tube 106 is fixedly connected to the top of the inner wall of the isolation heating barrel 101 by a reinforcing frame 103; the air inlet pipe 110 and the separate exhaust pipe 111 are connected to the isolation heating barrel 101. The connection is sealed; a pressure pump 107 is fixedly installed on the outer surface of the pressure control chamber 104, and a pressure control hole 105 communicating with the inside of the pressure control chamber 104 is also provided on the pressure control chamber 104. The pressure control hole 105 is connected to the air outlet of the pressure pump 107, and a pressure gauge is installed inside the pressure control chamber 104 to monitor the pressure inside the isolation heating tank 101 and the pressure control chamber 104; the isolation heating tank 101 is filled with water that covers the first spiral heating tube 108, the second spiral heating tube 109, the air inlet pipe 110 and the separation exhaust pipe 111. A water storage tank 130 is fixedly installed on the inner wall of the middle outer shell 127. A drain pipe 128 is also fixedly and sealed on the middle outer shell 127. The bottom end of the drain pipe 128 extends to the bottom of the inner wall of the water storage tank 130, and there is a gap between the bottom end of the drain pipe 128 and the bottom of the inner wall of the water storage tank 130. An electrically controlled valve 129 is connected in series on the middle part of the outer side of the drain pipe 128.

[0025] A supporting insulation body 132 is coaxially fixedly installed on the middle outer shell 127. A collection shielding groove 118 is fixedly installed on the inner side of the supporting insulation body 132. A sliding heat-conducting plate 115 is fixedly installed on the top of the inner wall of the supporting insulation body 132. A sliding heat-conducting moving plate 116 is rotatably and slidably contacted on the lower surface of the sliding heat-conducting moving plate 115. Multiple condensation separation plates 117 are fixedly installed in a circular array along the radial direction of rotation on the lower surface of the sliding heat-conducting moving plate 116. The surface of each condensation separation plate 117 is provided with a groove along the radial direction of the sliding heat-conducting moving plate 116 (to increase the surface area of ​​the condensation separation plate 117). The sliding heat-conducting moving plate 116 is rotatably sleeved on the circumferential surface of the insulating heating barrel 101. A separation bushing 135 is coaxially fixedly installed on the sliding heat-conducting moving plate 116, and the separation bushing 135 is also rotatably sleeved on the circumferential surface of the insulating heating barrel 101. A cooling water channel plate 113 is provided above the sliding heat-conducting fixed plate 115. A refrigerant diode 114 is provided in contact between the opposite surfaces of the cooling water channel plate 113 and the sliding heat-conducting fixed plate 115. The cooling water channel plate 113 is provided with an inlet and an outlet, and a circulating water channel is provided inside the cooling water channel plate 113. The inlet and outlet of the cooling water channel plate 113 are connected to the heat dissipation radiator, or the refrigerant diode 114 can be removed, and the cooling water channel plate 113 and the sliding heat-conducting fixed plate 115 can be in direct contact (both require the application of thermal grease). A compressor refrigeration device is used to connect the cold end to the inside of the cooling water channel plate 113 (the evaporation section of the refrigerant is connected to the cooling water channel plate 113). An outer casing 133 is fixedly installed on the supporting insulation body 132. The outer casing 133 is fitted onto the outside of the cooling water channel plate 113. A drive separation motor 134 is fixedly installed on the outer surface of the outer casing 133. The output shaft of the drive separation motor 134 extends to the inside of the outer casing 133. The end of the output shaft of the drive separation motor 134 is connected to the separation bushing 135 by a transmission belt 131. A drainage pipe 119 is fixedly connected to the bottom of the collection shielding groove 118. The bottom end of the drainage pipe 119 extends into the interior of the water storage tank 130. The bottom surface of the collection shielding groove 118 is a sloped surface inclined towards the drainage pipe 119.

[0026] An exhaust channel 121 is fixedly fitted onto the circumferential surface of the isolation heating tank 101. A partition 122 is fixedly installed at the top of the exhaust channel 121. A gap is provided between the circumferential surface of the partition 122 and the inner wall of the collection shielding groove 118, and a gap is provided between the bottom end of the collection shielding groove 118 and the circumferential surface of the exhaust channel 121 to facilitate gas flow. The exhaust channel 121 is hollow inside, and an exhaust pipe 120 is fixedly connected to the bottom of the exhaust channel 121. One end of the exhaust pipe 120 passes through the middle outer shell 127, and the connection between the exhaust pipe 120 and the middle outer shell 127 is sealed. The bottom of the middle outer shell 127 is fixedly installed on a support base 126. A heating base 125 is fixedly installed on the inner side of the support base 126. The heating base 125 is in contact with the bottom of the isolation heating tank 101 and is used to heat the water inside the isolation heating tank 101.

[0027] The working principle of the non-contact natural gas dehydration heating device disclosed in this invention is as follows: the natural gas to be dehydrated is connected to the inlet pipe 110, the natural gas is transported into the inlet pipe 110, and then enters the first spiral heating tube 108 and the second spiral heating tube 109, and finally discharged through the separation exhaust pipe 111. During this process, the valve at the top of the cleaning pipe 106 is in a closed state. When the first spiral heating tube 108 and the second spiral heating tube 109 need to be cleaned (periodic cleaning), simply disconnect the air inlet pipe 110 and the separate exhaust pipe 111, and then input the cleaning agent into the intermediate connecting tee 112 through the cleaning pipe 106 (with the valve open). The cleaning agent is then distributed to the first spiral heating tube 108 and the second spiral heating tube 109 through the intermediate connecting tee 112 (in order to ensure the heating efficiency of natural gas, the first spiral heating tube 108 and the second spiral heating tube 109 are very long, so they need to be flushed from the middle to both sides). This allows the cleaning agent to be discharged through the air inlet pipe 110 and the separate exhaust pipe 111. At this time, the outer cover 133 needs to be opened to expose the separate exhaust pipe 111.

[0028] Before heating the natural gas, the heating base 125 needs to be activated first. The heating base 125 heats the water inside the isolation heating tank 101. This requires controlling the pressure inside the pressure control chamber 104. By controlling the pressure inside the pressure control chamber 104 and the isolation heating tank 101, the temperature of the liquid water inside the isolation heating tank 101 is controlled. Therefore, a temperature sensor needs to be installed in the water inside the isolation heating tank 101 to detect the water temperature. At the same time, a check valve is installed at the outlet of the air pressure pump 107, and a three-way valve is connected in series at the connection between the air pressure pump 107 and the pressure control port 105. One end of the three-way valve is connected to an electromagnetic pressure relief valve to release the air pressure inside the isolation heating tank 101 and the pressure control chamber 104, thereby reducing the pressure. Then, natural gas is introduced into the air inlet pipe 110. Finally, the dehydrated natural gas is discharged through the exhaust pipe 120. Therefore, the exhaust pipe 120 and the air inlet pipe 110 need to be connected in series to the natural gas transmission pipeline. This process also requires starting the cooling diode 114 (or the compressor refrigeration equipment) and the drive separation motor 134. The output shaft of the drive separation motor 134 drives the separation bushing 135 to rotate via the transmission belt 131. The separation bushing 135 drives the sliding heat-conducting disk 116 to rotate. The sliding heat-conducting disk 116 drives the condenser separation plate 117 to rotate. At the same time, the cooling diode 114 will reduce the temperature of the sliding heat-conducting fixed disk 115 during operation. Since the sliding heat-conducting fixed disk 115 is in contact with the sliding heat-conducting disk 116, the sliding heat-conducting fixed disk 115 will reduce the temperature of the sliding heat-conducting disk 116 and the condenser separation plate 117. The temperature of the other heating surface of the cooling diode 114 will be dissipated through the cooling water channel plate 113.

[0029] Natural gas is heated by water inside the isolation heating tank 101 through the first spiral heating pipe 108 and the second spiral heating pipe 109. The purpose is to evaporate the water in the natural gas into a gaseous state (especially for water mist, not gaseous water; if not heated, this water mist (not water vapor) will flow with the gas and is not easy to separate). Then, it is transported to the area below the separating gas plate 124 through the separation exhaust pipe 111 and the intermediate gas inlet pipe 123, and then discharged above the separating gas plate 124 through the through holes on the separating gas plate 124. At this time, this part of natural gas and water vapor will flow to the position where it contacts the condensation separation plate 117. Since the temperature of the condensation separation plate 117 is lower than the boiling point of water (depending on the ambient pressure, this can be achieved by controlling the flow rate of natural gas output from the exhaust pipe 120), the gaseous water will condense on the surface of the condensation separation plate 117. Since the condensation separation plate 117 is rotating (not at high speed, mainly to drive the liquid water to rotate), the condensed water will detach from the surface of the condensation separation plate 117 under the action of centrifugal force. The water flows into the collection shielding trough 118, then into the drainage pipe 119, and is guided to the water storage tank 130. As water accumulates inside the water storage tank 130, when a certain level is reached (a level sensor is installed), the electrically controlled valve 129 opens (the opening degree is controllable). Because the middle outer shell 127 (the water storage tank 130 and the middle outer shell 127 are connected, and the water storage tank 130 is inside the middle outer shell 127) is under high pressure, the pressure difference will push the water inside the water storage tank 130 into the drain pipe 128, and then discharge it through the drain pipe 128. At this time, the liquid level inside the water storage tank 130 decreases, and then the electrically controlled valve 129 closes. The natural gas separated from the water passes through the condensation separation plate 117 and enters the exhaust channel 121 (the top of the exhaust channel 121 is open), and is finally discharged through the exhaust pipe 120.

Claims

1. A non-contact natural gas dehydration heating apparatus, characterized by: The application relates to an isolated heating barrel (101), a first spiral heating pipe (108) and a second spiral heating pipe (109) are arranged in the axial position of the inside of the isolated heating barrel (101) in a spiral cross arrangement, the bottom ends of the first spiral heating pipe (108) and the second spiral heating pipe (109) are communicated through an intermediate connecting tee joint (112), a cleaning pipe (106) is further fixedly communicated on the intermediate connecting tee joint (112), an air inlet pipe (110) and a separated air outlet pipe (111) are fixedly communicated with the top ends of the first spiral heating pipe (108) and the second spiral heating pipe (109) respectively, wherein the air inlet pipe (110) and the separated air outlet pipe (111) extend to the outside of the isolated heating barrel (101), and a pressure control cavity (104) is fixedly and sealingly communicated with the top of the isolated heating barrel (101). The separated air outlet pipe (111) is fixedly communicated with an intermediate air guide pipe (123), and the bottom end of the intermediate air guide pipe (123) is fixedly connected with a separation air plate (124); a middle shell (127) is coaxially sleeved outside the isolated heating barrel (101), wherein the separation air plate (124) is fixedly and sealingly connected between the inner wall of the middle shell (127) and the isolated heating barrel (101), and the middle shell (127) is divided into upper and lower spaces through the separation air plate (124), wherein the intermediate air guide pipe (123) is communicated with the lower space, and a plurality of through holes for connecting the upper and lower spaces are formed in the separation air plate (124), and the sum of the sectional areas of all the through holes is equal to the sectional area of the inner diameter of the intermediate air guide pipe (123).

2. A non-contact natural gas dehydration heating apparatus according to claim 1, characterized in that: The first spiral heating pipe (108) and the second spiral heating pipe (109) are fixed on the inner wall of the isolated heating barrel (101) through a fixed plate (102). The top end of the cleaning pipe (106) penetrates to the outside of the pressure control cavity (104), and the connection position of the cleaning pipe (106) and the pressure control cavity (104) is sealingly arranged; a valve is connected to the end of the cleaning pipe (106) away from the intermediate connecting tee joint (112); the cleaning pipe (106) is fixedly connected to the top of the inner wall of the isolated heating barrel (101) through a reinforcing frame (103); the connection positions of the air inlet pipe (110) and the separated air outlet pipe (111) and the isolated heating barrel (101) are sealingly arranged; an air pressure pump (107) is fixedly installed on the outer surface of the pressure control cavity (104), a pressure control hole (105) is further arranged in the pressure control cavity (104) and communicated with the inside of the pressure control cavity (104), the pressure control hole (105) and the air outlet of the air pressure pump (107) are communicated, and an air pressure gauge is arranged in the pressure control cavity (104) for monitoring the pressure in the isolated heating barrel (101) and the pressure control cavity (104); the isolated heating barrel (101) is filled with water which is higher than the first spiral heating pipe (108), the second spiral heating pipe (109), the air inlet pipe (110) and the separated air outlet pipe (111).

3. A non-contact natural gas dehydration heating apparatus as claimed in claim 2, wherein: The inner wall of the middle shell (127) is fixedly installed with a water storage tank (130), and a drainage pipe (128) is sealingly inserted into the middle shell (127). The bottom end of the drainage pipe (128) extends to the bottom of the inner wall of the water storage tank (130), and a gap is left between the bottom end of the drainage pipe (128) and the bottom of the inner wall of the water storage tank (130). An electric control valve (129) is coaxially fixedly installed on the middle shell (127) outside the middle part.

4. A non-contact natural gas dehydration heating apparatus according to claim 3, wherein: A support heat preservation body (132) is coaxially fixedly installed on the middle shell (127), and a collection shielding groove (118) is fixedly installed on the inner side of the support heat preservation body (132). A sliding heat conduction fixed disc (115) is fixedly installed on the top of the inner wall of the support heat preservation body (132). A sliding heat conduction movable disc (116) is rotatably and slidably arranged on the lower surface of the sliding heat conduction fixed disc (115). A plurality of condensation separation pieces (117) are fixedly installed on the lower surface of the sliding heat conduction movable disc (116) along the rotating radial circular array. A groove is arranged on the surface of each condensation separation piece (117) along the radial direction of the sliding heat conduction movable disc (116).

5. A non-contact natural gas dehydration heating apparatus as claimed in claim 4, wherein: The sliding heat conduction movable disc (116) is rotatably sleeved on the circumferential surface of the isolation heating barrel (101). A separation shaft sleeve (135) is coaxially fixedly installed on the sliding heat conduction movable disc (116). The separation shaft sleeve (135) is also rotatably sleeved on the circumferential surface of the isolation heating barrel (101). A cooling water channel disc (113) is arranged above the sliding heat conduction fixed disc (115). A refrigeration diode (114) is arranged in contact between the cooling water channel disc (113) and the opposite surface of the sliding heat conduction fixed disc (115).

6. A non-contact natural gas dehydration heating apparatus as claimed in claim 5, wherein: A shell cover (133) is fixedly installed on the support heat preservation body (132). The shell cover (133) is sleeved on the outer side of the cooling water channel disc (113). A driving separation motor (134) is fixedly installed on the outer surface of the shell cover (133). The output shaft of the driving separation motor (134) extends to the inner side of the shell cover (133). The output shaft of the driving separation motor (134) is drivingly connected to the separation shaft sleeve (135) through a transmission belt (131).

7. A non-contact natural gas dehydration heating apparatus as claimed in claim 6, wherein: The bottom of the collection shielding groove (118) is fixedly connected with a drainage pipe (119). The bottom end of the drainage pipe (119) extends to the inside of the water storage tank (130). The bottom surface of the collection shielding groove (118) is inclined to the side of the drainage pipe (119).

8. A non-contact natural gas dehydration heating apparatus as claimed in claim 7, wherein: The circumferential surface of the isolation heating barrel (101) is also fixedly sleeved with an exhaust passage (121). A partition plate (122) is fixedly installed at the top end of the exhaust passage (121). A gap is arranged between the circumferential surface of the partition plate (122) and the inner wall of the collection shielding groove (118). A gap is arranged between the bottom end of the collection shielding groove (118) and the circumferential surface of the exhaust passage (121), so as to facilitate the flow of gas.

9. A non-contact natural gas dehydration heating apparatus as defined in claim 8, wherein: The exhaust passage (121) is internally provided with a hollow, and the bottom of the exhaust passage (121) is fixedly and communicatively provided with an exhaust pipe (120), one end of the exhaust pipe (120) penetrates the middle shell (127), and the connection between the exhaust pipe (120) and the middle shell (127) is sealingly matched.

10. A non-contact natural gas dehydration heating apparatus as defined in claim 9, wherein: The bottom of the middle shell (127) is fixedly installed on the supporting base (126), the inner side of the supporting base (126) is fixedly installed with a heating base (125), the heating base (125) is in contact with the bottom of the isolation heating barrel (101) and is arranged for heating the water in the isolation heating barrel (101).

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