CN220338710U - Petroleum vacuum phase-change electric heater integrating electric heating and floating head type heat exchange tube bundles - Google Patents
Petroleum vacuum phase-change electric heater integrating electric heating and floating head type heat exchange tube bundles Download PDFInfo
- Publication number
- CN220338710U CN220338710U CN202320791746.3U CN202320791746U CN220338710U CN 220338710 U CN220338710 U CN 220338710U CN 202320791746 U CN202320791746 U CN 202320791746U CN 220338710 U CN220338710 U CN 220338710U
- Authority
- CN
- China
- Prior art keywords
- tube
- electric heater
- flange
- box
- floating head
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000007667 floating Methods 0.000 title claims abstract description 65
- 239000003208 petroleum Substances 0.000 title claims abstract description 40
- 238000005485 electric heating Methods 0.000 title claims abstract description 21
- 210000002445 nipple Anatomy 0.000 claims abstract description 75
- 238000010438 heat treatment Methods 0.000 claims abstract description 34
- 238000007789 sealing Methods 0.000 claims abstract description 33
- 230000008859 change Effects 0.000 claims abstract description 22
- 239000012530 fluid Substances 0.000 claims abstract description 14
- 230000000149 penetrating effect Effects 0.000 claims abstract description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 36
- 239000010959 steel Substances 0.000 claims description 36
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 19
- 238000011010 flushing procedure Methods 0.000 claims description 17
- 238000009434 installation Methods 0.000 claims description 14
- 239000000126 substance Substances 0.000 claims description 14
- 239000007788 liquid Substances 0.000 claims description 13
- 238000000926 separation method Methods 0.000 claims description 7
- 239000004576 sand Substances 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 6
- 239000000428 dust Substances 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 claims description 3
- 239000010865 sewage Substances 0.000 claims description 3
- 230000000712 assembly Effects 0.000 claims description 2
- 238000000429 assembly Methods 0.000 claims description 2
- 238000007599 discharging Methods 0.000 claims description 2
- 230000005611 electricity Effects 0.000 claims 2
- 229910052755 nonmetal Inorganic materials 0.000 claims 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 24
- 239000003345 natural gas Substances 0.000 abstract description 12
- 239000003209 petroleum derivative Substances 0.000 abstract description 9
- 239000007789 gas Substances 0.000 abstract description 8
- 238000004321 preservation Methods 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000000203 mixture Substances 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 105
- 238000004140 cleaning Methods 0.000 description 8
- 239000010779 crude oil Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 230000001681 protective effect Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000004134 energy conservation Methods 0.000 description 3
- 238000005192 partition Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000011499 joint compound Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000009751 slip forming Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
Abstract
A vacuum phase-change petroleum electric heater integrating heating and floating head type heat exchange tube bundles belongs to the technical field of petroleum and natural gas heating devices and aims to solve the problems of complex integral structure and large occupied area of the existing petroleum and natural gas heating devices. The petroleum vacuum phase change electric heater tube body integrating the electric heating and floating head type tube array heat exchange tube bundles is adopted, a shell side tube box, a tube side tube box mounting nipple flange, a left electric heater mounting nipple flange and a right electric heater mounting nipple flange are respectively welded on the left and right tube body sealing heads, tube array heat exchanger tube bundles are arranged in the inner cavities of the integrated electric heater tube body, the left and right tube body sealing heads connected with the left shell side tube box and the right tube side tube box in a penetrating manner, and 1-9 groups of electric heaters are arranged in the inner cavities of the integrated electric heater tube body, the left and right tube body sealing heads connected between the left and right electric heater mounting nipple flanges in a penetrating manner. The whole structure is novel and practical, and is suitable for heating and heat-tracing heat preservation of petroleum and oil-gas mixture fluid in petroleum production wells or oil pipelines of oil collecting stations.
Description
Technical Field
The utility model belongs to an electric heating appliance for petroleum exploitation and crude oil output in the technical field of petroleum and natural gas heating devices.
Technical Field
With the increasing development of the petroleum and gas industry and the implementation of energy conservation and emission reduction projects, the technical requirements on heating devices in petroleum and gas crude oil electric heating and oil transportation devices are also higher and higher, because the heating devices are directly related to the actual effect and quality of petroleum and gas crude oil electric heating and oil transportation. In the known art, one of the existing petroleum and natural gas heating apparatuses is: the oil and natural gas is directly heated by a furnace tube through a direct electric heater, as disclosed in Chinese patent grant publication No. CN 208380550U, the sand-blocking prevention type oil explosion-proof electromagnetic heater is characterized in that a main body of a cylinder tube is provided with a flange at the head part of the cylinder tube at two ends, a connecting head at the tail part of the cylinder tube and an oil outlet pipe joint, an anti-dry-heating temperature control box and 1-2 sand-removing and pollution-discharging pipe joints are arranged on the cylinder tube, an electromagnetic rod core outer protective sleeve is arranged in the main body of the cylinder tube and is connected with an explosion-proof sealing junction box, an outer protective sleeve is sleeved in the outer protective sleeve and is provided with an electromagnetic heating rod, an oil inlet tube connecting flange is arranged at the head part of an electromagnetic rod inner core steel tube, the rear tail part of the electromagnetic rod core outer protective sleeve and an outer protective sleeve sealing flange cover are connected in a penetrating manner, and a spiral guide vane mandrel for sand-preventing precipitation is arranged in the electromagnetic rod inner core steel tube. The other is: the medium-heating medium is heated by the furnace tube of the heating furnace, and then the heat is transferred to the crude oil of the petroleum and the natural gas by the heat exchanger, which is called indirect heating, namely a heat exchange structure. The heat exchanger for heating petroleum is disclosed in Chinese patent publication No. CN207280254U, and is characterized in that two ends of a shell are respectively provided with a tube box, one end of each tube box is provided with a fluid connecting tube, one side of the upper end and the lower end of the shell is provided with a connecting flange provided with a cold water inlet pipeline, the other side of the shell is provided with a fixed flange provided with an oil-containing cold water inlet pipeline, one side of the lower end of the shell is provided with an oil-containing hot water discharge pipeline, the other side of the shell is provided with a drainage pipeline, a heat transfer tube is arranged between fixed tube plates arranged at two ends inside the shell, and the surface of the heat transfer tube is provided with a baffle plate. There is also a process structure in which an electric heater for direct heating is connected in series with a heating heat exchanger, but the structure is limited, the whole structure is complex, the occupied area is large, the practical application space is limited, the heat loss is large, the heat energy conversion efficiency is low, and the petroleum and natural gas and crude oil are required to be heated in the petroleum exploitation, storage, transportation and processing processes, so that the crude oil is heated, reduced in viscosity and separated from oil and water, and the process is characterized in that: firstly, the safety requirement is high, the water jacket heating furnace belongs to a normal pressure container, and particularly, open fire exists in the combustion process of a heating furnace burner, and higher fireproof and explosion-proof performances are required; and secondly, the method meets the requirements of energy conservation and emission reduction, and the method of a circulating process of conveying high-pressure steam of a fuel oil and gas boiler to heat exchanger equipment and then carrying out secondary heat energy exchange is used for heating crude oil, oil and gas are used as fuels, and commonly discharged smoke is polluted, has obvious hidden pollution hazards and mainly does not meet the environmental protection requirements of national carbon neutralization emission.
Based on the above, in order to meet the actual requirements of the development of the petroleum and natural gas industry and energy conservation and emission reduction, it is necessary to further improve and develop a novel integrated petroleum vacuum phase change electric heater integrating the collector heating and the tube type heat exchanger,
disclosure of Invention
In order to overcome the defects of the prior art, the problems of complex integral structure and large occupied area of the existing petroleum and natural gas heating apparatus are solved. The utility model aims to provide a novel and practical integrated structure with an integrated structure integrating electric heating and a detachable tube type heat exchanger tube bundle, which has small occupied space, high heat energy conversion efficiency, no pollution when carbon is applied to reach the standard, and safe and durable use.
The utility model solves the problems by adopting the following technical scheme:
a petroleum vacuum phase change electric heater integrating heat collection and floating head type heat exchange tube bundles comprises: the integrated electric heater cylinder body is a vacuum phase-change petroleum electric heater cylinder body integrating collecting heating and floating head type tube array heat exchange tube bundles of tube array heat exchanger tube bundles and 1-9 groups of electric heaters, shell side tube box, right tube side tube box, shell side tube box installation nipple flange, tube side tube box installation nipple flange, left electric heater installation nipple flange and right electric heater installation nipple flange which are welded at two ends of the cylinder body, the right cylinder body is provided with a tube array heat exchange tube bundle and a floating head type tube array heat exchange tube bundle, the left cylinder body end socket and the right cylinder body end socket at two ends of the integrated electric heater cylinder body are respectively welded with a shell side tube box installation nipple flange, a left electric heater installation nipple flange and a tube side tube box installation nipple flange in steel structures, the shell side tube box installation nipple flange and the tube side tube box installation nipple flange are respectively and correspondingly provided with a left shell side tube box with a tube side floating head cover and a right tube side tube box with an oil inlet and outlet pipe joint, tube type heat exchanger tube bundles are arranged in the inner cavities of the left shell side tube box, the right tube side tube box and the integrated electric heater tube body, the left tube body end enclosure and the right tube body end enclosure which are connected with each other in a penetrating way, and 1-9 groups of electric heaters are hermetically arranged in the inner cavities of the integrated electric heater tube body, the left tube body end enclosure and the right tube body end enclosure which are connected with each other and are positioned at the lower part of the tube type heat exchanger tube bundles, so that the integrated vacuum phase-change petroleum electric heater integrating electric heating and floating head tube type heat exchanger tube bundles is formed.
The oil vacuum phase change electric heater integrating the electric heat and the floating head type heat exchange tube bundle is characterized in that the tube type heat exchanger tube bundle is a tube type heat exchanger tube bundle formed by a plurality of heat exchange steel tubes through welding between a floating head tube plate flange and a fixed tube plate flange, the tube type heat exchanger tube bundle is arranged in a sealed tube side fluid split floating head cavity formed by a tube side tube box mounting nipple flange, a right tube body end socket, an integrated electric heater tube body, a left tube body end socket, a shell side tube box mounting nipple flange, a tube side floating head cover, the floating head tube plate flange and a hook ring split flange in a penetrating manner, the tube side tube box mounting nipple flange and the fixed tube plate flange of the tube type heat exchanger tube bundle are mutually clamped to form an oil inlet and outlet sealing cavity, the tube side heat exchanger tube bundle is connected with a tube side fluid component Cheng Futou cavity of the tube side tube type heat exchanger tube bundle to form a sealed circulation passage of tube side fluid heat exchange, the right tube side tube box is respectively connected with an oil inlet tube joint and an oil outlet, and the left tube side tube box is mounted and the shell side tube box are fastened to form a sealed tube side tube body integrally communicated with the electric heater.
According to the petroleum vacuum phase change electric heater with the electric heating and floating head type heat exchange tube bundles as a whole, the fixed tube plate flange is clamped between the connecting flange of the right tube side tube box and the tube side tube box mounting nipple flange, the three flanges are simultaneously fastened and double-sided sealed stacked sealing connection structures, the left shell side tube box and the shell side tube box mounting nipple flange are in sealing connection with each other to form a shell side sealing cavity, 1-several fluid separation baffles are arranged between the cavities connected with the tube side floating head cover and the floating head tube plate flange, and a plurality of oil inlet and outlet fluid separation baffles corresponding to the tube side floating head cover end Cheng Daoliu separation cavities are also arranged in the cavity of the right tube side tube box.
The oil vacuum phase change electric heater integrating the electric heating and the floating head type heat exchange tube bundles is characterized in that the tube type heat exchange tube bundles are directly and completely exposed in a gas phase heat exchange space at the upper part in a cylinder cavity of the integrated electric heater, and the tube type heat exchange tube bundles are tube type heat exchange tube bundle assemblies which are formed by connecting floating head tube plate flanges to fixed tube plate flanges and can be integrally detached and replaced.
The oil vacuum phase change electric heater integrating the electric heating and the floating head type heat exchange tube bundle is characterized in that a tube bundle binding fixing frame guard plate is arranged on the tube bundle of the tube type heat exchanger tube bundle, the bottom of the tube bundle binding fixing frame guard plate is matched with a heat exchanger tube bundle supporting slide rail, two parallel angle steels are welded on the top surface of a plurality of parallel cross arm channel steels in the axial direction perpendicular to the cross arm channel steels, a heat exchanger tube bundle supporting slide rail formed by supporting sliding tubes is welded on the slope surfaces of the near-angle tops of the side surfaces of the angle steels in the two parallel angle steels respectively along the angle steel directions correspondingly, the bottom of the tube bundle binding fixing frame guard plate is mutually matched and connected with the two parallel slide rails welded on the supporting slide rail through square guard plates with the two ends of the parallel cross arm channel steels.
Above-mentioned collect electric heat and floating head formula heat transfer tube bank in oil vacuum phase transition electric heater of an organic whole, floating head tube sheet flange, fixed tube sheet flange, tube side floating head cover's interface flange, the box mouth flange of left shell side tube case and the box mouth flange's of right tube side tube case connection sealing end face have installed O shape sealing rubber ring, sealed steel pad and the sealing structure spare of any one of non-metallic gasket mutual sealing fastening connection respectively.
The petroleum vacuum phase change electric heater integrating the electric heating and the floating head type heat exchange tube bundle is characterized in that a vacuum safety valve nipple, a water inlet valve nipple, an exhaust valve nipple, a lifting hook, a pressure gauge nipple, a safety valve, a guardrail platform and an escalator are respectively arranged at the top of a cylinder body of the integrated electric heater cylinder body, a sewage disposal valve and a saddle are arranged at the bottom of the cylinder body, a water temperature sensor mounting end hole, a liquid level meter, a pressure transmitter, a temperature transmitter, a water temperature display instrument, a liquid level transmitter, a cylinder shell side thermometer and a pressure instrument mounting end hole are formed in a cylinder side wall body at the back of the cylinder body, and a detection manhole cover is arranged on the side wall body at the back of the cylinder body; an oil inlet end thermometer, an oil inlet end pressure gauge mounting connection pipe, a mud sand back flushing and a chemical masonry-cleaning outlet valve nipple flange are respectively arranged on the pipe wall of the oil inlet pipe joint, and an oil outlet end thermometer, an oil outlet end pressure gauge mounting connection pipe, a mud sand back flushing and a chemical masonry-cleaning inlet valve nipple flange are respectively arranged on the pipe wall of the oil outlet pipe joint; the valve which is arranged on the pipe wall of the pipe joint of the oil inlet pipe and is connected with the flange of the pug return flushing and chemical dust removing outlet valve nipple and the valve which is arranged on the pipe wall of the pipe joint of the oil outlet pipe and is connected with the flange of the pug return flushing and chemical dust removing inlet valve nipple form a closed pug back flushing liquid medium or chemical dust removing reagent medium circulating channel loop with a pipe side pipeline channel; when needed, the bypass valve between the oil inlet and the oil outlet is opened, and then the input valve at the oil inlet side and the output valve at the oil outlet side of the oil pipeline are closed in sequence, so that crude oil forms a closed conveying loop through the bypass valve; the outer ends of the inlet valve and the outlet valve are connected with a connecting pipeline and a tank groove which are communicated with a high-pressure circulating pump, namely, a closed circulating passage for tube side high-pressure fluid silt back flushing or chemical masonry removing reagent liquid flushing operation is formed by the connecting pipeline and the tank groove and a channel loop of a heat exchange tube bundle, the silt back flushing or chemical masonry removing outlet valve and the silt back flushing or chemical masonry removing inlet valve are opened, and the high-pressure circulating pump is started to perform liquid back flushing or descaling cleaning circulating cleaning operation, so that the purpose of back flushing silt or masonry acidizing discharge is achieved.
The oil vacuum phase change electric heater integrating the electric heating and the floating head type heat exchange tube bundle is characterized in that a cylinder base part of the cylinder of the integrated electric heater is connected with a skid-mounted base, the skid-mounted base is provided with a shell cover, an explosion-proof type electric controller and an industrial personal computer for on-site data information acquisition and remote monitoring control operation of a PLC, an oil inlet valve and an oil outlet valve are respectively arranged on an oil inlet tube joint and an oil outlet tube joint of a right tube side tube box, and a bypass valve is connected between the oil inlet tube and the oil outlet tube of the oil inlet valve, and the oil inlet tube and the oil outlet tube of the oil outlet valve; in the flow of the oil inlet side pipeline and the oil outlet side pipeline connected with the oil inlet pipe joint and the oil outlet pipe joint of the right tube side pipeline box, an oil inlet valve and an oil outlet valve are respectively arranged and connected, and a bypass connection nipple flange and a bypass valve are respectively arranged between the end side of the oil inlet valve in the oil inlet direction and the end side of the oil outlet valve in the oil outlet direction, namely, the end side of the valve before oil inlet and the oil inlet pipeline of the end side of the valve after oil outlet, and the terminal ends of the oil inlet pipeline and the oil outlet pipeline are respectively provided with a mounting flange which is connected with the external oil inlet pipeline and the external oil outlet pipeline. The shell cover is arranged on the integrated electric heater cylinder body, and the main functions of the shell cover are that after the heat preservation layer is arranged on the periphery of the electric heater cylinder body, the waterproof and heat preservation outer armor protection layer formed by pressing a metal steel plate is not arranged on the periphery of the electric heater cylinder body, the shell cover is used for replacing the protection and waterproof function, compared with the shell cover which directly serves as the waterproof and heat preservation outer armor protection layer on the outer part of the heat preservation layer of the cylinder body, the manufacturing cost of the shell cover is greatly reduced, the manufacturing process is relatively simple, and the waterproof and heat preservation effect is better.
When the integrated petroleum heater is used, the integrated petroleum heater is assembled in an oil inlet and outlet pipeline of a petroleum and petroleum pipeline or other devices needing petroleum and natural gas heating according to design requirements and actual needs, and a vacuum safety valve nipple, a water inlet valve nipple, an exhaust valve nipple and an oil outlet end pressure gauge mounting connecting pipe are respectively assembled with a vacuum safety valve, a water inlet valve, an exhaust valve and a pressure gauge, and a standby short-joint hole is sealed by a blind plate. When the integrated electric heater is pre-operated, firstly, a hydraulic test is carried out, after the integrated electric heater is qualified, an airtight test is carried out, and after the integrated electric heater is completely qualified, the integrated electric heater can be filled with industrial pure water or suitable heating medium such as superconducting liquid to a marked position through a water inlet pipe valve, and the water inlet valve is closed; and externally connecting an oil inlet pipeline and an oil return pipeline with terminal mounting flanges of the oil inlet pipeline and the oil outlet pipeline in the sled, and forming a closed heat exchange fluid circulation loop with a tube pass passage of the heat exchanger in the sled. Before starting operation, a bypass valve between an oil inlet pipeline and an oil outlet pipeline is opened, then the oil inlet valve and the oil outlet valve are sequentially closed, a heating control system of the electric heater can be started, heating medium such as industrial pure water or superconducting fluid in a shell side cavity is automatically heated, when the temperature of the heating medium reaches a set temperature and the steam pressure in a cylinder cavity reaches 0.03Mpa, a vacuum safety valve is automatically jumped to start to carry out air discharge and pressure relief for 5-8 minutes, then the valves at the oil inlet and the oil outlet side are sequentially opened, and then the bypass valve is closed, so that cold petroleum liquid medium enters a tube side loop of a tube type heat exchanger tube bundle to carry out continuous circulating heat exchange flow, the heating temperature of steam in the shell side cavity is carried away, the pressure is correspondingly reduced along with the reduction of the temperature of the medium in the shell side cavity, the vacuum safety valve is gradually reduced in pressure and is automatically closed, and a constant negative pressure heat environment is continuously formed in the cavity of the cylinder side of the integrated electric heater along with the heated petroleum natural gas heating medium, so that a vacuum phase change heat exchange operation working state is formed, and the heat exchange heat preservation conveying of the crude petroleum liquid medium is formed.
Because the technical scheme is adopted in the design of the utility model, the electric heater and the tube array type heat exchanger tube bundle form an integrated vacuum phase change petroleum electric heater in the cavity of the integrated electric heater tube body, the traditional heat exchanger outer shell is omitted, the structural style of the floating head heat exchanger is adopted, the tube array type heat exchanger tube bundle is sealed and fixed by correspondingly welding a left shell side tube box mounting nipple and a right tube side tube box mounting nipple on the tube body seal heads at the two ends of the integrated electric heater tube body, the heat exchange in the gas phase space of the integrated electric heater tube body is realized, and the tube array type heat exchanger is provided with a tube bundle supporting and binding fixing frame guard plate, so that the tube array type heat exchanger tube bundle assembly can be conveniently detached and replaced integrally; the heating device effectively solves the problems of complex integral structure and large occupied area of the existing petroleum and natural gas heating device. The practical operation and test result show that the integrated structure has the advantages of novel and practical integral structure, integrated structure integrating the current collection heating and the detachable tube type heat exchanger tube bundle, small occupied space, high heat energy conversion efficiency, safe and durable use, simple physical descaling, convenient use and the like, and is suitable for heating and heat tracing heat preservation of petroleum and oil gas mixture fluid in petroleum extraction and oil transportation pipelines.
Additional features and advantages of the utility model will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model. The objectives and other advantages of the utility model may be realized and attained by the structure particularly pointed out in the written description and drawings.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings described are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of a specific structure of an embodiment of the present utility model.
Fig. 2 is a right-hand structural schematic diagram of the embodiment of fig. 1.
Fig. 3 is an enlarged schematic view of the structure of the part a in the embodiment of fig. 1, namely, the fixed tube plate flange and the tube side tube box installation nipple flange, which are connected with the O-shaped sealing rubber ring.
Fig. 4 is an enlarged schematic view of the embodiment of fig. 1 showing the portion B, i.e., the floating head tube sheet flange, tube side floating head cover and split hook and loop flange, and positioned and connected to the left shell side tube box 6 by the locking pin 14.
FIG. 5 is a schematic cross-sectional view of a portion of a tube array heat exchanger tube bundle assembly connected within an integral electric heater cartridge in the embodiment of FIG. 1.
Fig. 6 is an enlarged schematic view of the bottom of the tube bundle tie holder of the embodiment of fig. 5 in mating engagement with the heat exchanger tube bundle ramps.
FIG. 7 is an enlarged cross-sectional view of B-B of the embodiment of FIG. 6.
Fig. 8 is a schematic structural diagram of an integrated vacuum phase-change petroleum electric heater integrated with an electric heating and floating head heat exchange tube bundle and additionally provided with a skid-mounted base, a shell cover, an explosion-proof electrical control cabinet, an oil inlet pipeline and an oil outlet pipeline and a valve in the embodiment of fig. 1.
Fig. 9 is an enlarged schematic top view of the inlet and outlet lines and valve of the embodiment of fig. 8.
The reference numerals in the drawings are: 1-an integrated electric heater cylinder; 2-tube type heat exchanger tube bundles; 3-floating head tube plate flange; 4-fixing a tube plate flange; 5-tube side floating head cover; 501-a partition plate; 502-a shell side tube box lifting lug; 6-left shell side tube box; 7-right tube side tube box; 8-installing a short joint flange on the shell-side pipe box; 9-installing a short joint flange on the tube side tube box; 10-an electric heater; 11-left cylinder end socket; 12-right cylinder end socket; 13-split hook and loop flanges; 14-locking pins; 15-mounting a short joint flange on the left electric heater; 16-a heat exchanger tube bundle skid; 161-cross arm channel steel; 162-angle steel; 163-square connecting plate; 164-sliding rail steel pipes; 17-binding a hoop fixing frame guard board by a tube bundle; 18-a vacuum relief valve; 19-a water inlet valve nipple; 20-exhaust valve nipple; 21-a sewage disposal valve; 22-saddle; 23-pressure gauge nipple; 24-an oil outlet end thermometer; 25-mounting a connecting pipe on the pressure gauge at the oil outlet end; 26-an oil inlet end thermometer; 27-a shell side temperature and pressure gauge; 28-a pressure transmitter; 29-a temperature transmitter; 30-a temperature display instrument; 31-a temperature sensor mounting connection pipe; 32-level gauge; 33-level transmitter; 34-lifting hooks; 35-an oil inlet pipe joint; 36-an oil outlet pipe joint; 37-right electric heater mounting nipple flange; 38-an oil inlet end pressure gauge mounting adapter tube; 39-detecting a manhole cover; 40-guardrail platform; 41-staircase; 42-back flushing of imported mud and sand and chemical cleaning of the flange of the valve nipple; 43-outlet silt back flushing and chemical masonry-cleaning valve nipple flange; 44-O-shaped sealing rubber rings; 45-standby nipple; the 46-PLC collects field data information and remotely monitors and controls the industrial personal computer operated; 47-explosion-proof electrical control cabinet; 48-oil inlet valve; 49-oil outlet valve; 50-bypass valve; 51-an oil feed line; 52-an oil outlet line; 53-safety valve; 54-skid-mounted base; 55-housing.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", "top", "bottom", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
As shown in fig. 1 to 7, the present embodiment includes: the electric heater comprises an integrated electric heater cylinder 1, a left cylinder end enclosure 11, a right cylinder end enclosure 12, a tube bundle 2 of the electric heater, an electric heater 10, a tube side floating head cover 5, a left tube side tube box 6, a right tube side tube box 7, a tube side tube box mounting nipple flange 8, a tube side tube box mounting nipple flange 9, an electric heater mounting left nipple flange 15 and an electric heater mounting right nipple flange 37, wherein the left cylinder end enclosure 11, the right cylinder end enclosure 12 of the integrated electric heater cylinder 1 are welded with the tube bundle 2 of the electric heater and the electric heater 10 in groups, the tube side tube box mounting nipple flange 8, the tube side tube box mounting nipple flange 15 and the tube side tube box mounting nipple flange 9 are respectively welded on the left cylinder end enclosure and the right cylinder end enclosure at the two ends of the integrated electric heater cylinder 1, the tube side tube bundle 2 of the electric heater and the electric heater are respectively, the tube side tube bundle 11, the tube side tube bundle 2 of the electric heater and the electric heater are respectively connected between the left tube side tube box 6 and the right tube box 6, the tube side tube box 7 and the tube side tube box mounting nipple flange 9, the tube side tube box mounting nipple flange 11 and the tube side tube box 2 of the integrated electric heater are connected with the tube bundle 11 of the integrated electric heater, and the tube bundle 11 of the electric heater is connected with the tube bundle 11 in the tube bundle 2 of the integrated electric heater, and the tube bundle 11 is sealed between the tube bundle 11 of the tube side tube bundle and the tube bundle 11.
Referring to fig. 1 and 3-4, in this embodiment, the tube bundle 2 of the tube bundle heat exchanger is a tube bundle heat exchanger formed by welding several heat exchange steel tubes between a floating head tube plate flange 3 and a fixed tube plate flange 4, the tube bundle 2 of the tube bundle heat exchanger is installed in a tube-side liquid sealing diversion cavity formed by connecting a right tube-side tube box 7, a tube-side tube box mounting nipple flange 9, a right tube-side tube head 12, an integrated electric heater tube 1, a left tube-side tube head 11, a shell-side tube box mounting nipple flange 8 and a left shell-side tube box 6, an oil inlet tube joint 35 and an oil outlet tube joint 36 are externally connected to the right tube-side tube box 7, an inner end surface of the fixed tube plate flange 4 of the tube bundle heat exchanger is connected with the tube-side tube box mounting nipple flange 9, an outer end surface of the tube-side tube box 7 is connected with a flange of the right tube-side tube box 7, a tube-side head cover flange 3 is connected with the left tube-side tube box 6 by a split-side hook flange 13 in a sealing manner, and a tube plate 14 is connected with the left shell-side tube box 6 in a sealing manner, and the floating head cover 3 and the floating head cover flange Cheng Daoliu are connected with the floating head tube flange and the floating head tube box flange 3 in a floating head tube-side tube box flange.
Preferably, referring to fig. 1, in this embodiment, a fixed tube plate flange 4 is clamped between a connecting flange of a right tube side tube box 7 and a tube side tube box mounting nipple flange 9, the three flanges are simultaneously fastened together to form a double-sided sealed stacked sealing connection structure, the left tube side tube box 6 and the tube side tube box mounting nipple flange 8 are sealed and connected to form a shell side sealing cavity, a 3-channel separation baffle 501 is arranged on the inner side structure of a tube side float cover 5 arranged in the shell side sealing cavity, a pull ring 502 is arranged on the cover body, and 3-channel oil inlet and outlet separation baffles corresponding to the tube side float cover Cheng Geqiang are also arranged in the tube side tube box cavity of the right tube side tube box 7. The floating head type heat exchange tube bundle is divided into a plurality of independent medium loop cavities by a dividing partition plate 501 in the cavity of the floating head flange cover and a dividing partition plate in the cavity of the tube side tube box.
Specifically, referring to fig. 1, in the embodiment, the heat exchanger tube bundle of the shell-and-tube heat exchanger tube bundle 2 is directly exposed in the heat exchange space at the upper part in the cavity of the integrated electric heater cylinder 1, and the heat exchanger tube bundle of the shell-and-tube heat exchanger tube bundle 2 is an integrally detachable and replaceable shell-and-tube heat exchanger tube bundle assembly formed by connecting a floating head tube plate flange 3 to a fixed tube plate flange 4.
Referring to fig. 1 and fig. 5-7, in this embodiment, a tube bundle tie-fixing frame guard 17 is mounted on a tube bundle of the tube bundle 2 of the tube bundle heat exchanger, the bottom of the tube bundle tie-fixing frame guard 17 is cooperatively connected with a heat exchanger tube bundle support slideway 16, the heat exchanger tube bundle support slideway 16 is formed by welding two parallel angle steels 162 on the top surface of a plurality of parallel cross arm channel steels 161 in an axial direction perpendicular to the top surface, and the slope surfaces of the near-angle tops of the side surfaces of the angle steels of the two parallel angle steels 162 are respectively correspondingly welded with a heat exchanger tube bundle support slideway formed by supporting slide tubes 164 along the angle steel direction, and the plurality of parallel cross arm channel steels 161 are respectively welded on the radial inner wall of the cylinder cavity of the integrated electric heater cylinder 1 through Fang Huban which is mounted and connected at two ends of the cross arm channel steels. The bottom of the tube bundle binding and fixing frame guard plate 17 and the slide rail steel tubes welded on the slope surfaces at the tops of the two parallel angle steels 162 on the supporting slide rail are matched and slide to realize the whole extraction, disassembly and insertion replacement of the tube bundle assembly of the tube type heat exchanger.
For example, referring to fig. 1 and 3, in the embodiment, the tube side seals between the interface flange of the floating head tube plate flange 3 and the tube side floating head cover 5 and between the fixed tube plate flange 4 and the box mouth flange of the right tube side tube box 7 are sealed by using steel gaskets; the connection seals between the box mouth flange of the left shell-side tube box 6 and the shell-side tube box mounting nipple flange 8 and between the tube-side tube box mounting nipple flange 9 and the fixed tube plate flange 4 are O-shaped sealing rubber rings 44. The other shell side interface sealing surfaces are O-shaped sealing rubber rings or nonmetallic gaskets.
Still more specifically, referring to fig. 1-2, in this embodiment, a vacuum safety valve nipple 18, a water inlet valve nipple 19, an exhaust valve nipple 20, a lifting hook 34, a pressure gauge nipple 23, a safety valve 53, a standby nipple 45, a guardrail platform 40 and an escalator 41 are respectively installed at the top of the barrel of the integrated electric heater barrel 1, a drain valve 21 and a saddle 22 are installed at the bottom of the barrel, a temperature sensor mounting connection pipe 31, a liquid level meter 32, a pressure transmitter 28, a temperature transmitter 29, a temperature display instrument 30, a liquid level transmitter 33, a barrel shell side thermometer and a pressure gauge mounting end hole 27 are formed on the side surface of the barrel, and a detection manhole cover 39 is installed on the side surface of the back of the barrel; the oil inlet pipe joint 35 is respectively provided with an oil inlet end thermometer 26, an oil inlet end pressure gauge mounting connecting pipe 38, an inlet mud sand back flushing and chemical masonry cleaning valve nipple flange 42, and the oil outlet pipe joint 36 is respectively provided with an oil outlet end thermometer 24, an oil outlet end pressure gauge mounting connecting pipe 25 and an outlet mud sand back flushing and chemical masonry cleaning valve nipple flange 43. The level gauge 32 in this embodiment is a 2m magnetic flap level gauge.
Preferably, referring to fig. 8-9, the bottom of the barrel 1 of the integrated electric heater barrel in this embodiment is provided with a skid-mounted base 54, the skid-mounted base 54 is provided with a housing 55, an explosion-proof electric controller 47 and an industrial personal computer 46 for on-site data information acquisition and remote monitoring control operation by a PLC, the oil inlet pipe joint 35 and the oil outlet pipe joint 36 of the right tube side tube box 7 are respectively provided with an oil inlet valve 48 and an oil outlet valve 49 on the connected oil inlet pipeline 51 and oil outlet pipeline 52, and a bypass valve 50 is connected between the oil inlet pipeline and the oil outlet pipeline at the front end of the oil inlet valve 48 and the rear end of the oil outlet pipeline 52.
The above is only one embodiment, and other technical features and technical solutions derived from adding components, equivalent substitutions and partial improvements without the inventive effort of a person skilled in the art are within the scope of protection of the present patent.
Claims (9)
1. The utility model provides a petroleum vacuum phase change electric heater integrating electricity collection heat and floating head type heat exchange tube bundles, which comprises an electric heater (10), and is characterized in that the petroleum vacuum phase change electric heater also comprises an integrated electric heater cylinder body (1), a left cylinder body end enclosure (11), a right cylinder body end enclosure (12), a tube array type heat exchanger tube bundle (2), a tube side floating head cover (5), a left shell side tube box (6), a right tube side tube box (7), a shell side tube box mounting short joint flange (8), a tube side tube box mounting short joint flange (9), a left electric heater mounting short joint flange (15) and a right electric heater mounting short joint flange (37), wherein the integrated electric heater cylinder body (1) is a vacuum phase change electric heater cylinder body integrating electricity collection heating and floating head type tube bundles of the tube array type heat exchanger tube bundles (2) and 1-9 groups electric heaters (10), the shell side tube box mounting short joint flange (8), the left electric heater mounting short joint flange (15) and the right electric heater mounting short joint flange (37) are respectively welded on the left cylinder body end enclosure and the right cylinder body end enclosure at two ends of the integrated electric heater cylinder body (1), the shell side tube box installation nipple flange (8) and the tube side tube box installation nipple flange (9) are respectively correspondingly provided with a left shell side tube box (6) and a right tube side tube box (7) which are connected with the outside of the tube side floating head cover (5), the inner cavities of the left shell side tube box (6), the right tube side tube box (7) and the integrated electric heater cylinder (1), the left cylinder head (11) and the right cylinder head (12) which are connected with each other are penetrated with a tube type heat exchanger tube bundle (2), and the inner cavities of the left shell side tube box (6), the right tube side tube box (7) and the right cylinder head (12) are internally penetrated with 1-9 groups of electric heaters (10) in a sealing way, wherein the tube side tube box (6), the left tube head (11) and the right tube head (12) are connected with each other and are positioned at the lower part of the tube type heat exchanger tube bundle (2).
2. The petroleum vacuum phase change electric heater integrating electric heating and floating head type heat exchange tube bundles as claimed in claim 1, wherein the tube bundle (2) of the tube type heat exchanger is a tube type heat exchanger tube bundle formed by a plurality of heat exchange steel tubes welded and connected between a floating head tube plate flange (3) and a fixed tube plate flange (4), the tube type heat exchanger tube bundle (2) is arranged in a sealed tube side fluid split floating head cavity formed by a tube side tube box mounting nipple flange (9), a right tube body seal head (12), an integrated electric heater tube body (1), a left tube body seal head (11), a shell side tube box mounting nipple flange (8), a tube side floating head cover (5), the floating head tube plate flange (3) and a hook ring split flange (13) in a penetrating way, the tube side tube box mounting nipple joint flange (9) and the fixed tube plate flange (4) of the tube side tube box (2) of the tube type heat exchanger tube bundle (7) are mutually clamped and connected to form an oil inlet and outlet sealing cavity and are connected with a tube side fluid component Cheng Futou cavity of the tube side tube box (2) to form a closed circulation passage of tube side fluid heat exchange, the right tube side tube box (7) is respectively connected with an oil inlet tube joint (35) and an oil outlet tube joint (36), the left shell-side tube box (6) and the shell-side tube box mounting nipple flange (8) are connected, fastened and sealed into a whole and are communicated with the integrated electric heater cylinder (1) to form a closed cavity passage of the shell side.
3. The petroleum vacuum phase change electric heater integrating electric heating and floating head type heat exchange tube bundles as claimed in claim 1, wherein a fixed tube plate flange (4) is clamped between a connecting flange of a right tube side tube box (7) and a tube side tube box installation short flange (9), the three flanges are simultaneously fastened and double-sided sealed stacked sealing connection structures are formed, and the left tube side tube box (6) and the tube side tube box installation short flange (8) are connected in a sealing manner to form a shell side sealing cavity; the inner side structure of the tube side floating head cover (5) is provided with 1-several separation plates (501), and the tube side tube box cavity of the right tube side tube box (7) is also provided with several oil inlet and outlet separation plates corresponding to the tube side floating head cover Cheng Geqiang.
4. The petroleum vacuum phase change electric heater integrating electric heating and floating head type heat exchange tube bundles as claimed in claim 1, wherein the heat exchange tube bundles of the tube array type heat exchange tube bundles (2) are directly exposed in the heat exchange space at the upper part in the cavity of the integrated electric heater cylinder (1), and the heat exchange tube bundles of the tube array type heat exchange tube bundles (2) are tube array type heat exchange tube bundle assemblies which are formed by connecting floating head tube plate flanges (3) to fixed tube plate flanges (4) and can be detached and replaced integrally.
5. The petroleum vacuum phase change electric heater integrating electric heating and floating head type heat exchange tube bundles as claimed in claim 1, wherein a tube bundle bundling fixing frame guard plate (17) is mounted on the tube bundle of the tube bundle type heat exchanger tube bundle (2), the bottom of the tube bundle bundling fixing frame guard plate (17) is connected with a heat exchanger tube bundle supporting slideway (16) in a matched mode, the heat exchanger tube bundle supporting slideway (16) is formed by welding two parallel angle steels (162) on the top surface of a plurality of parallel cross arm channel steels (161) in an axial direction perpendicular to the top surface, and a heat exchanger tube bundle supporting slideway formed by welding a supporting slide tube (164) is correspondingly welded on the slope surfaces of the near-angle tops of the side surfaces of the angle steels of the two parallel angle steels (162) along the angle steel directions respectively, and the plurality of parallel cross arm channel steels (161) are welded on the radial inner wall of a cylinder cavity of the integrated electric heater cylinder (1) through Fang Huban (163) mounted on two ends of the parallel cross arm channel steels.
6. The petroleum vacuum phase change electric heater integrating heat collection and floating head type heat exchange tube bundles as claimed in claim 2, wherein the connecting sealing end faces of the floating head tube plate flange (3), the fixed tube plate flange (4), the interface flange of the tube side floating head cover (5), the box mouth flange of the left shell side tube box (6) and the box mouth flange of the right tube side tube box (7) are respectively provided with any sealing structural parts which are mutually sealed and fastened by O-shaped sealing rubber rings, sealing steel gaskets and nonmetal gaskets.
7. The petroleum vacuum phase change electric heater integrating electric heating and floating head type heat exchange tube bundles into a whole according to claim 1, wherein the cylinder top of the cylinder (1) of the integrated electric heater is respectively provided with a vacuum safety valve nipple (18), a water inlet valve nipple (19), an exhaust valve nipple (20), a hoisting hook (34), a pressure gauge nipple (23), a safety valve (53), a guardrail platform (40) and an escalator (41), the bottom of the cylinder is provided with a sewage discharging valve (21) and a saddle (22), the side wall of the cylinder is provided with a water temperature measuring sensor mounting end hole (31), a liquid level meter (32), a pressure transmitter (28), a temperature transmitter (29), a water temperature display instrument (30), a liquid level transmitter (33) and a pressure instrument mounting end hole (27), and the side surface of the back of the cylinder is provided with a detection manhole cover (39).
8. The petroleum vacuum phase change electric heater integrating electric heating and floating head type heat exchange tube bundles into a whole according to claim 2, wherein an oil inlet end thermometer (26), an oil inlet end pressure gauge mounting connection tube (38), a silt return flushing and chemical dust removal outlet valve nipple flange (42) are respectively arranged on the oil inlet tube joint (35); the oil outlet pipe joint (36) is respectively connected with an oil outlet end thermometer (24), an oil outlet end manometer mounting connecting pipe (25) and a mud sand back flushing and chemical dust removing inlet valve nipple flange (43).
9. The petroleum vacuum phase change electric heater integrating electric heating and floating head type heat exchange tube bundles as claimed in claim 1, wherein a skid-mounted base (54) is mounted at the bottom of a barrel body (1) of the integrated electric heater barrel body, an industrial personal computer (46) for collecting and remotely monitoring and controlling field data information of a shell cover, an explosion-proof type electric controller (47) and a PLC is mounted on the skid-mounted base (54), an oil inlet valve (48) and an oil outlet valve (49) are mounted on an oil inlet tube joint (35) and an oil outlet tube joint (36) of the right tube side tube box (7) respectively, and a bypass valve (50) is connected between the oil inlet tube joint and the oil outlet tube joint at the front end of an oil inlet of the oil inlet valve (48) and the outer end of an oil outlet of the oil outlet tube (52).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320791746.3U CN220338710U (en) | 2023-04-11 | 2023-04-11 | Petroleum vacuum phase-change electric heater integrating electric heating and floating head type heat exchange tube bundles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320791746.3U CN220338710U (en) | 2023-04-11 | 2023-04-11 | Petroleum vacuum phase-change electric heater integrating electric heating and floating head type heat exchange tube bundles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220338710U true CN220338710U (en) | 2024-01-12 |
Family
ID=89444492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320791746.3U Active CN220338710U (en) | 2023-04-11 | 2023-04-11 | Petroleum vacuum phase-change electric heater integrating electric heating and floating head type heat exchange tube bundles |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220338710U (en) |
-
2023
- 2023-04-11 CN CN202320791746.3U patent/CN220338710U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN220338710U (en) | Petroleum vacuum phase-change electric heater integrating electric heating and floating head type heat exchange tube bundles | |
| CN106767021A (en) | Raw coke over gas riser heat exchanger | |
| CN206724743U (en) | Raw coke over gas riser heat exchanger | |
| CN103063075B (en) | Tube box structure of tube type heat exchanger | |
| CN201177378Y (en) | Phase-change type water-jacket heater | |
| CN101008521A (en) | Overpressure resistant and explosion-proof mobile gas-liquid heating equipment | |
| CN114018068A (en) | Heater for low-temperature ethylene unloading and working method thereof | |
| CN207439208U (en) | A kind of separated heating device heat exchanger | |
| CN203100525U (en) | Tube box structure for tube type heat exchanger | |
| CN201028793Y (en) | Mobile explosion-proof overpressure-resistant gas-liquid firing equipment | |
| CN209310576U (en) | Floating head heat exchanger with dual-seal | |
| CN202048677U (en) | Micro pressure phase change heating furnace | |
| CN206540448U (en) | Utilize heat transferring medium indirect heat exchange coal oven dithio-gas heat exchanger | |
| CN215311250U (en) | Compact structure's steam condensate station | |
| CN213543677U (en) | Orifice plate flowmeter convenient to change flow orifice plate | |
| CN205718608U (en) | A kind of micro heat pipe flue gas heat exchange equipment | |
| CN112275739B (en) | Sulfur-related equipment cleaning device with mixed heat source | |
| CN204461151U (en) | High-pressure natural gas vacuum furnace | |
| CN214147398U (en) | High titanium slag direct current furnace gas cabinet curb plate welding seam anticorrosion protection system | |
| CN113048795B (en) | Energy-saving industrial furnace fuel gas mixing device and working method thereof | |
| CN211626180U (en) | Vertical heat exchanger | |
| CN203518742U (en) | Economizer provided with parallel-connection heat collecting tubes | |
| CN220321043U (en) | Novel liquid chlorine vaporization device | |
| CN112781405B (en) | High-efficient compact heat exchanger of multichannel formula | |
| CN216954104U (en) | Heater for low-temperature ethylene unloading |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |