Non-contact natural gas dehydration heating equipment

Abstract

The invention discloses 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 which are spirally and crossly arranged are arranged in the isolation heating barrel, so that sufficient heat exchange is realized in the natural gas conveying process. Natural gas and high-temperature water are heated in an isolated mode, water mist carried in the natural gas can be effectively evaporated, and the water-vapor separation efficiency is improved. Compared with the traditional single-stage heat exchange pipeline design, the staggered spiral pipe increases the heating area and the heat transfer path, so that fine water mist particles in natural gas can be completely gasified, and a good premise is provided for subsequent condensation separation; and the condensation separation sheet adopts a rotary structure, and the surface is provided with a groove, so that the condensation area and the water drop adhesion capability are obviously increased. Meanwhile, centrifugal force is generated in the rotating process of the separating pieces, condensate water can be rapidly thrown away from the surface, enters the collecting tank and is guided to the water storage pond, and water drops are prevented from being mixed into natural gas again.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of natural gas processing, in particular to a non-contact natural gas dehydration and heating equipment. BACKGROUND

[0002] At present, the common natural gas dehydration and heating equipment mostly adopts direct heat exchange or single-stage pipeline heating mode. After the natural gas enters the heating cavity, it is usually heated by a straight pipe heating structure or a limited number of coil pipes to evaporate the water mist in the natural gas. This leads to that the water vapor separation in the dehydration device mostly adopts a static condensing plate or a natural sedimentation mode. The surface area of the condensing plate is limited, and the condensed water droplets are easy to adhere or flow back on the plate surface, which cannot be completely separated from the natural gas, resulting in that the residual moisture in the finished gas is relatively high, affecting the safety of transportation and use. In terms of drainage and maintenance, the traditional equipment mostly needs to be manually discharged regularly, and lacks automatic control. If the drainage is not timely, the water level in the water storage cavity will be raised, and even the water will flow back into the natural gas pipeline, affecting the purity of the natural gas. SUMMARY

[0003] In order to overcome the defects of the prior art, the present application provides the following technical scheme: a non-contact natural gas dehydration and heating equipment, comprising an isolation heating barrel, a first spiral heating pipe and a second spiral heating pipe arranged in a spiral intersection in the axial position inside the isolation heating barrel, the bottom ends of the first spiral heating pipe and the second spiral heating pipe are communicated by an intermediate connecting tee, and a cleaning pipe is further fixedly communicated on the intermediate connecting tee, the top ends of the first spiral heating pipe and the second spiral heating pipe are fixedly communicated with an air inlet pipe and a separation exhaust pipe respectively, wherein the air inlet pipe and the separation exhaust pipe extend to the outside of the isolation heating barrel, and a pressure control cavity is fixedly and sealingly communicated with the top of the isolation heating barrel; an intermediate air guide pipe is fixedly communicated with the separation exhaust pipe, and the bottom end of the intermediate air guide pipe is fixedly connected with a separation air plate; a middle shell is coaxially sleeved outside the isolation heating barrel, wherein the separation air plate is fixedly and sealingly connected between the inner wall of the middle shell and the isolation heating barrel, and the middle shell is divided into upper and lower spaces by the separation air plate, wherein the intermediate air guide pipe 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, and the sum of the cross-sectional areas of all the through holes is equal to the inner diameter cross-sectional area of the intermediate air guide pipe.

[0004] Preferably, the first spiral heating pipe and the second spiral heating pipe are fixed on the inner wall of the isolation heating barrel through a fixing plate; the top end of the cleaning pipe penetrates to the outside of the pressure control cavity, and the connection between the cleaning pipe and the pressure control cavity is sealingly provided; the end of the cleaning pipe away from the intermediate connecting tee is connected with a valve; the cleaning pipe is fixedly connected with the top of the inner wall of the isolation heating barrel through a reinforcing frame; the connection between the air inlet pipe and the separation exhaust pipe and the isolation heating barrel is sealingly provided; a gas pressure pump is fixedly installed on the outer surface of the pressure control cavity; a pressure control hole communicating with the inside of the pressure control cavity is further provided on the pressure control cavity, and the pressure control hole and the gas outlet of the gas pressure pump are in communication, and a gas pressure gauge is provided in the pressure control cavity to monitor the pressure inside the isolation heating barrel and the pressure control cavity; the inside of the isolation heating barrel is filled with water that covers the first spiral heating pipe, the second spiral heating pipe, the air inlet pipe and the separation exhaust pipe.

[0005] Preferably, a water storage pool is fixedly installed on the inner wall of the middle shell, and a drain pipe is sealingly inserted into the middle shell; the bottom end of the drain pipe extends to the bottom of the inner wall of the water storage pool, and a gap is left between the bottom end of the drain pipe and the bottom of the inner wall of the water storage pool; an electric control valve is provided in the middle part of the drain pipe outside the middle shell.

[0006] Preferably, a support heat preservation body is coaxially fixedly installed on the middle shell, a collection shielding groove is fixedly installed on the inner side of the support heat preservation body, a sliding heat conduction fixed disc is fixedly installed on the top of the inner wall of the support heat preservation body, a sliding heat conduction movable disc is rotatably and slidingly provided on the lower surface of the sliding heat conduction fixed disc, a plurality of condensation separation pieces are fixedly installed on the lower surface of the sliding heat conduction movable disc along the rotating radial circular array, and grooves are provided on the surface of each condensation separation piece along the radial direction of the sliding heat conduction movable disc (to increase the surface area of the condensation separation piece).

[0007] Preferably, the sliding heat conduction movable disc is rotatably sleeved on the circumferential surface of the isolation heating barrel, a separation shaft sleeve is coaxially fixedly installed on the sliding heat conduction movable disc, the separation shaft sleeve is also rotatably sleeved on the circumferential surface of the isolation heating barrel, a cooling water channel disc is provided above the sliding heat conduction fixed disc, and a refrigeration diode is in contact between the cooling water channel disc and the opposite surface of the sliding heat conduction fixed disc. The cooling water channel disc is provided with a water inlet and a water outlet, and a circulating water channel is arranged in the cooling water channel disc; the water inlet and the water outlet of the cooling water channel disc are connected with the heat dissipation cold row, or the refrigeration diode is removed, the cooling water channel disc and the sliding heat conduction fixed disc are directly contacted (both need to be provided with heat-conducting silicone grease), a compressor refrigeration device is used, and the cold end is communicated with the inside of the cooling water channel disc (the evaporation section of the refrigerant is communicated with the cooling water channel disc).

[0008] Preferably, the support heat preservation body is fixedly installed with a shell cover, the shell cover is sleeved outside the cooling water channel disc, a driving separation motor is fixedly installed on the outer surface of the shell cover, the output shaft of the driving separation motor extends to the inside of the shell cover, and the output shaft end of the driving separation motor is in transmission connection with the separation shaft sleeve through a transmission belt.

[0009] Preferably, the bottom of the collection shielding groove is fixedly communicated with a drainage pipe, the bottom end of the drainage pipe extends to the inside of the water storage pool, and the bottom surface of the collection shielding groove is provided as an inclined surface inclined to one side of the drainage pipe.

[0010] Preferably, the circumferential surface of the isolation heating barrel is further fixedly sleeved with an exhaust passage, the top end of the exhaust passage is fixedly installed with a partition plate, a gap is arranged between the circumferential surface of the partition plate and the inner wall of the collection shielding groove, and a gap is arranged between the bottom end of the collection shielding groove and the circumferential surface of the exhaust passage, so as to facilitate the flow of gas.

[0011] Preferably, the inside of the exhaust passage is hollow, a bottom end of the exhaust passage is fixedly and communicatively provided with an exhaust pipe, and one end of the exhaust pipe penetrates through the middle shell and is in sealing cooperation with the connection position of the exhaust pipe and the middle shell.

[0012] Preferably, the bottom of the middle shell is fixedly installed on the support base, the inside of the support base is fixedly installed with a heating base, the heating base is in contact with the bottom of the isolation heating barrel, and is used for heating the water in the isolation heating barrel.

[0013] Compared with the prior art, the present application has the following advantages: (1) The present application sets the first spiral heating pipe and the second spiral heating pipe arranged in a spiral intersection in the isolation heating barrel, so that the natural gas can be fully heat exchanged during transportation. The natural gas is heated in isolation with high-temperature water, 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 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, providing a good premise for subsequent condensation separation; (2) The condensation separation piece of the present application adopts a rotating structure, and the surface is provided with grooves, which significantly increases the condensation area and water droplet adhesion capacity. At the same time, the separation piece generates centrifugal force in the rotating process, which can quickly throw the condensed water away from the surface, so that it enters the collection tank and is guided to the water storage pool, avoiding the re-mixing of water droplets into the natural gas. Compared with the static condensation plate, the rotating separation piece reduces the liquid droplet residue and improves the natural gas dryness; (3) The present application sets a pressure control cavity on the isolation heating barrel, and cooperates with the air pressure pump, the pressure control hole and the electromagnetic pressure relief valve to realize the accurate regulation 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 condition; (4) The present application sets a liquid level sensor and an electric control valve in the water storage pool to realize automatic detection and automatic discharge of the condensed water. The water storage pool is communicated with the middle shell, and the condensed water can be quickly discharged under the action of pressure difference, and the influence of high water level on the separation efficiency is avoided. Compared with the traditional manual periodic drainage method, unattended and continuous operation can be realized, which greatly improves the automation degree and operation stability of the system. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present application.

[0015] Figure 2 It is a schematic diagram of the separation air plate structure of the present application.

[0016] Figure 3 It is a schematic diagram of the exhaust passage structure of the present application.

[0017] Figure 4 It is a schematic diagram of the condensation separation piece structure of the present application.

[0018] Figure 5 It is a schematic diagram of the present application Figure 4 It is a schematic diagram of the structure at A in the present application.

[0019] Figure 6 It is a schematic diagram of the internal structure of the isolation heating barrel of the present application.

[0020] Figure 7 It is a schematic diagram of the spiral heating pipe structure of the present application.

[0021] In the figure: 101-isolation heating barrel; 102-fixed plate; 103-strengthening frame; 104-pressure control cavity; 105-pressure control hole; 106-cleaning pipe; 107-air pressure pump; 108-first spiral heating pipe; 109-second spiral heating pipe; 110-air inlet pipe; 111-separation exhaust pipe; 112-intermediate connecting tee; 113-cooling water channel disc; 114-refrigeration diode; 115-sliding heat-conducting fixed disc; 116-sliding heat-conducting moving disc; 117-condensation separation piece; 118-collection shielding groove; 119-drainage pipe; 120-exhaust pipe; 121-exhaust passage; 122-baffle; 123-intermediate air guide pipe; 124-separation air baffle; 125-heating base; 126-supporting base; 127-middle shell; 128-drainage pipe; 129-electric control valve; 130-water storage pool; 131-transmission belt; 132-supporting heat-insulating body; 133-shell cover; 134-driving separation motor; 135-separation shaft sleeve. DETAILED DESCRIPTION

[0022] The technical solutions of the present application will be further described below in combination with the accompanying drawings. Figures 1-7 The technical solutions of the present application will be further described below in combination with the accompanying drawings.

[0023] The present application provides a non-contact natural gas dehydration heating equipment, which comprises an isolation heating barrel 101, a first spiral heating pipe 108 and a second spiral heating pipe 109 arranged in a spiral intersection manner are arranged at the axial position inside the isolation heating barrel 101, the bottom ends of the first spiral heating pipe 108 and the second spiral heating pipe 109 are communicated through an intermediate connecting tee 112, a cleaning pipe 106 is further fixedly communicated on the intermediate connecting tee 112, the top ends of the first spiral heating pipe 108 and the second spiral heating pipe 109 are fixedly communicated with an air inlet pipe 110 and a separation exhaust pipe 111 respectively, wherein the air inlet pipe 110 and the separation exhaust pipe 111 extend to the outside of the isolation heating barrel 101, and a pressure control cavity 104 is fixedly and sealingly communicated with the top of the isolation heating barrel 101; the separation exhaust 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 baffle 124; a middle shell 127 is coaxially sleeved outside the isolation heating barrel 101, wherein the separation air baffle 124 is fixedly and sealingly connected between the inner wall of the middle shell 127 and the isolation heating barrel 101, and the middle shell 127 is divided into upper and lower spaces by the separation air baffle 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 baffle 124, and the sum of the cross-sectional areas of all the through holes is equal to the inner diameter cross-sectional area of the intermediate air guide pipe 123.

[0024] The first spiral heating pipe 108 and the second spiral heating pipe 109 are fixed on the inner wall of the isolation heating barrel 101 through the fixing plate 102; wherein the top end of the cleaning pipe 106 penetrates to the outside of the pressure control cavity 104, and the connection between the cleaning pipe 106 and the pressure control cavity 104 is sealingly provided, and the end of the cleaning pipe 106 away from the intermediate connecting tee joint 112 is connected with a valve; the cleaning pipe 106 is fixedly connected with the top of the inner wall of the isolation heating barrel 101 through the reinforcing frame 103; wherein the air inlet pipeline 110 and the separated air outlet pipeline 111 are sealingly provided at the connection with the isolation heating barrel 101; the outer surface of the pressure control cavity 104 is fixedly installed with the air pressure pump 107, and the pressure control cavity 104 is further provided with the pressure control hole 105 which is in communication 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 in communication, and the inside of the pressure control cavity 104 is provided with an air pressure gauge for monitoring the pressure inside the isolation heating barrel 101 and the pressure control cavity 104; the inside of the isolation heating barrel 101 is filled with water which is over the first spiral heating pipe 108, the second spiral heating pipe 109, the air inlet pipeline 110 and the separated air outlet pipeline 111.

[0025] The middle shell 127 is coaxially fixedly installed with a support heat preservation body 132, the inner side of the support heat preservation body 132 is fixedly installed with a collection shielding groove 118, the top of the inner wall of the support heat preservation body 132 is fixedly installed with a sliding heat conduction fixed disc 115, the lower surface of the sliding heat conduction fixed disc 115 is rotatably and slidably in contact with a sliding heat conduction movable disc 116, the lower surface of the sliding heat conduction movable disc 116 is fixedly installed along a rotating radial circular array with a plurality of condensation separation pieces 117, the surface of each condensation separation piece 117 is provided with a groove along the radial direction of the sliding heat conduction movable disc 116 (to increase the surface area of the condensation separation piece 117). The sliding heat conduction movable disc 116 is rotatably sleeved on the circumferential surface of the isolation heating barrel 101, the sliding heat conduction movable disc 116 is coaxially fixedly installed with a separation shaft sleeve 135, 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, and a refrigeration diode 114 is arranged in contact between the opposite surfaces of the cooling water channel disc 113 and the sliding heat conduction fixed disc 115. The cooling water channel disc 113 is provided with a water inlet and a water outlet, and a circulating water channel is arranged in the cooling water channel disc 113. The water inlet and the water outlet of the cooling water channel disc 113 are connected with a heat dissipation cold row, or the refrigeration diode 114 is removed, the cooling water channel disc 113 and the sliding heat conduction fixed disc 115 are directly contacted (both need to be provided with heat-conducting silicone grease), a compressor refrigeration device is used, a cold end is communicated with the inside of the cooling water channel disc 113 (the evaporation section of the refrigerant is communicated with the cooling water channel disc 113). The support heat preservation body 132 is fixedly installed with a shell cover 133, the shell cover 133 is sleeved on the outside of the cooling water channel disc 113, the outer surface of the shell cover 133 is fixedly installed with a driving separation motor 134, the output shaft of the driving separation motor 134 extends to the inside of the shell cover 133, and the output shaft of the driving separation motor 134 is in transmission connection with the separation shaft sleeve 135 through a transmission belt 131. The bottom of the collection shielding groove 118 is fixedly communicated with a drainage pipe 119, and 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 provided as an inclined surface inclined to the side of the drainage pipe 119.

[0026] The circumferential surface of the isolation heating barrel 101 is further fixedly sleeved with an exhaust passage 121, the top end of the exhaust passage 121 is fixedly installed with a partition plate 122, the circumferential surface of the partition plate 122 is provided with a gap between the inner wall of the collection shielding groove 118, and the bottom end of the collection shielding groove 118 is provided with a gap between the circumferential surface of the exhaust passage 121, so as to facilitate the flow of gas. The inside of the exhaust passage 121 is 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 exhaust pipe 120 is sealingly connected with the middle shell 127. 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 used for heating the water in the isolation heating barrel 101.

[0027] The working principle of the non-contact natural gas dehydration heating equipment disclosed by the application is as follows: the natural gas to be dehydrated is connected with the gas inlet pipe 110, the natural gas is delivered into the gas inlet pipe 110, then into the first spiral heating pipe 108 and the second spiral heating pipe 109, and finally discharged through the separation exhaust pipe 111, and the valve at the top of the cleaning pipe 106 is in a closed state during the process. When it is necessary to clean the first spiral heating pipe 108 and the second spiral heating pipe 109 (periodic cleaning), only the gas inlet pipe 110 and the separation exhaust pipe 111 are disconnected, then the cleaning agent is input into the intermediate connecting tee joint 112 through the cleaning pipe 106 (the valve is opened), and then distributed into the first spiral heating pipe 108 and the second spiral heating pipe 109 through the intermediate connecting tee joint 112 (in order to ensure the heating efficiency of the natural gas, the length of the first spiral heating pipe 108 and the second spiral heating pipe 109 is very long, so it is necessary to flush from the middle to both sides), so that the cleaning agent is discharged through the gas inlet pipe 110 and the separation exhaust pipe 111, at this time, it is necessary to open the shell cover 133 to expose the separation exhaust pipe 111.

[0028] Before heating the natural gas, the heating base 125 needs to be started first, and the heating base 125 heats the water in the isolated heating barrel 101, which needs to control the pressure in the pressure control cavity 104, and the temperature of the liquid water in the isolated heating barrel 101 is controlled by controlling the pressure in the pressure control cavity 104 and the isolated heating barrel 101. Therefore, a temperature sensor needs to be arranged in the water in the isolated heating barrel 101 for detecting the temperature of the water, and a check valve is arranged at the gas 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 hole 105. One end of the three-way valve is connected with an electromagnetic pressure relief valve for releasing the air pressure in the isolated heating barrel 101 and the pressure control cavity 104 and reducing the pressure. Then natural gas is introduced into the gas inlet pipeline 110, and the natural gas that has been dehydrated is discharged through the gas outlet pipeline 120, so the gas outlet pipeline 120 and the gas inlet pipeline 110 need to be connected in series to the natural gas conveying pipeline. In this process, the refrigeration diode 114 (or compressor refrigeration equipment) and the driving separation motor 134 also need to be started, wherein the output shaft of the driving separation motor 134 drives the separation shaft sleeve 135 to rotate through the transmission belt 131, the separation shaft sleeve 135 drives the sliding heat conduction dynamic disc 116 to rotate, the sliding heat conduction dynamic disc 116 drives the condensation separation piece 117 to rotate, and the temperature of the sliding heat conduction fixed disc 115 is reduced during the working process of the refrigeration diode 114. Since the sliding heat conduction fixed disc 115 is in contact with the sliding heat conduction dynamic disc 116, the sliding heat conduction fixed disc 115 reduces the temperature of the sliding heat conduction dynamic disc 116 and the condensation separation piece 117, and the temperature of the other heating surface of the refrigeration diode 114 is dissipated through the cooling water channel disc 113.

[0029] The natural gas is isolated and heated by the water inside the isolated heating barrel 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 gas state (especially for water mist, not gaseous water, if not heated, this part of water mist (not water vapor) will flow with the gas, not easy to separate out). Then through the separation exhaust pipe 111 and the intermediate air pipe 123 to the lower part of the separation air plate 124, and then through the through hole on the separation air plate 124 to the upper part of the separation air plate 124, at this time this part of natural gas and water vapor will flow to the position in contact with the condensing separation piece 117, because the temperature of the condensing separation piece 117 is lower than the boiling point of water (depending on the environmental pressure, by controlling the flow of output natural gas at the exhaust pipe 120), at this time the gaseous water will condense on the surface of the condensing separation piece 117, because the condensing separation piece 117 is in a rotating state (not high speed, mainly to drive the liquid water to rotate), the condensed water will move out of the adhesion force with the surface of the condensing separation piece 117 under the action of centrifugal force into the collection and shielding groove 118, and then flow into the drainage pipe 119, and then guided to the water storage pool 130 through the drainage pipe 119, with the continuous accumulation of water inside the water storage pool 130, when reaching a certain liquid level (setting the liquid level sensor), at this time the control electric valve 129 is opened (the opening degree is controllable), because the middle shell 127 (the water storage pool 130 and the middle shell 127 are connected, the water storage pool 130 is in the middle shell 127) is in a high pressure state, therefore under the action of pressure difference, the water inside the water storage pool 130 will be pushed into the drain pipe 128, and then discharged through the drain pipe 128, at this time the liquid level in the water storage pool 130 is lowered, and then the electric valve 129 is closed. The natural gas after being separated from water will pass through the condensing separation piece 117 into the exhaust passage 121 (the top of the exhaust passage 121 is in an open state), and 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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