CN112555059A - Gas heater - Google Patents
Gas heater Download PDFInfo
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- CN112555059A CN112555059A CN202011331933.0A CN202011331933A CN112555059A CN 112555059 A CN112555059 A CN 112555059A CN 202011331933 A CN202011331933 A CN 202011331933A CN 112555059 A CN112555059 A CN 112555059A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
- F02M21/0203—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels characterised by the type of gaseous fuel
- F02M21/0209—Hydrocarbon fuels, e.g. methane or acetylene
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
- F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
- F02M21/023—Valves; Pressure or flow regulators in the fuel supply or return system
- F02M21/0239—Pressure or flow regulators therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
- F02M21/06—Apparatus for de-liquefying, e.g. by heating
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- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Valve Housings (AREA)
Abstract
The invention discloses a gas heater, which comprises a gas inlet joint, a heat exchanger, an external water path connecting pipeline, a thermostat control valve, a gas outlet joint, a first gas inlet, a first gas outlet, a third gas inlet and a fourth gas outlet, wherein a valve block is detachably arranged on the heat exchanger, the surface of the heat exchanger is provided with an installation cavity, one side inside the installation cavity is provided with a connecting groove, a connecting plate is clamped inside the connecting groove, the surface of the connecting plate is detachably provided with a connecting ring, and the surface of the connecting ring is provided with a positioning hole. Among the above-mentioned scheme, gas heater utilizes the hydraulic stem to drive the shrink ring shrink, and is fixed with the intake pipe of different models to guarantee that gas inlet is applicable to the intake pipe of various models, avoided because gas inlet is fixed, and the model of intake pipe differs, so in case when changing the intake pipe that the diameter ratio gas inlet diameter is little, will lead to the pipeline not hard up, and then lead to the problem that gas transmission efficiency reduces.
Description
Technical Field
The invention relates to the technical field of gas heating, in particular to a gas heater.
Background
At present, natural gas has the advantages of cleanness and low price, and in order to save energy, a gas engine using natural gas combustion as power has been more and more emphasized by people, particularly in the automobile engine industry, and the natural gas engine has obvious economic benefit and environmental benefit compared with the traditional fuel engine;
the temperature of natural gas (CNG) after vaporization or decompression of Liquefied Natural Gas (LNG) is low, the temperature of the natural gas is related to flow, season and environment temperature, the temperature can reach-four and fifty degrees under extremely cold conditions, generally, the temperature ranges from-twenty degrees to-five degrees, the temperature fluctuation is large, the temperature is low, and the temperature in extremely cold regions is lower than-thirty degrees, so that the starting is difficult, and the air-fuel ratio of an engine is unstable due to the large fluctuation of the temperature ranges, so that the engine runs unstably and has high noise, and the natural gas is heated and stabilized in a certain range to solve the problem;
in the existing market, the installation pattern of the engine adopts a typical mode: the heat exchanger and the thermostat control valve are two completely independent parts, and are formed by connecting an external pipeline and a plurality of joints, and then are fixed on a bracket of an engine; in practical applications, such a design has several significant drawbacks: firstly, the gas inlet is not suitable for gas inlet pipes of various types, and when the device works, the gas inlet is fixed and the types of the gas inlet pipes are different, so that once the gas inlet pipe with the diameter smaller than the diameter of the gas inlet is used, the pipeline is loosened, the gas conveying efficiency is reduced, and the development is not facilitated; secondly, the valve body is inconvenient to disassemble, and when the device works, the valve body is fixedly arranged on the surface of the heater through the bolt, and the heater works in an external environment, so once moist gas appears around, the surface of the bolt can be rusted for a long time, and further the connection between the fixed components becomes firm, and the disassembly is inconvenient; thirdly, the functional part has large volume; fourthly, three main parts need to be connected through an external pipeline, the workload of pipeline connection is large, debris is easy to generate, and a plurality of leakage points are generated, so that the cost is high and the quality risk is high; and for engines with different models, specifications and discharge capacities, the external pipelines and the mounting bracket are different, and the variety and the material are more, so that the integrated production is not facilitated.
Disclosure of Invention
In order to overcome the above defects in the prior art, embodiments of the present invention provide a gas heater to solve the problem that the gas heater in the prior art uses a hydraulic rod to drive a contraction ring to contract and fix gas inlet pipes of different types, so as to ensure that gas inlets are suitable for gas inlet pipes of various types, and avoid the problem that once the gas inlets are fixed and the types of the gas inlet pipes are different, the gas inlet pipes with a diameter smaller than the diameter of the gas inlets are used, the pipelines become loose, and the gas delivery efficiency is reduced.
In order to solve the technical problems, the invention provides the following technical scheme:
a gas heater comprises a gas inlet joint, a heat exchanger, an external waterway connection pipeline, a thermostat control valve, a gas outlet joint, a first gas inlet, a first gas outlet, a third gas inlet and a fourth gas outlet, wherein a valve block is detachably mounted on the heat exchanger, the surface of the heat exchanger is provided with a mounting cavity, one side inside the mounting cavity is provided with a connecting groove, a connecting plate is clamped inside the connecting groove, the surface of the connecting plate is detachably provided with a connecting ring, the surface of the connecting ring is provided with a positioning hole, and the inside of the first gas inlet is detachably provided with positioning equipment;
the valve block and the heat exchanger are respectively provided with an internal water path and an internal air path, the internal water path and the internal air path of the valve block are formed by communicating holes on the valve block, the internal air path of the valve block is communicated with the internal air path of the heat exchanger, the internal water path of the valve block is communicated with the internal water path of the heat exchanger through an external water path pipeline, and the thermostat control valve is arranged in the internal water path of the valve block;
the built-in gas path of the heat exchanger comprises a direct-current built-in gas path and a feedback built-in gas path, wherein a second gas inlet and a second gas outlet are respectively arranged at two ends of the direct-current built-in gas path, one end of the feedback built-in gas path is communicated with the position, close to the second gas outlet, on the direct-current built-in gas path, a steering valve is arranged at the communication position, the steering valve is controlled to control circulating gas in the direct-current built-in gas path to flow out of or into the feedback built-in gas path from the two gas outlets, the other end of the feedback built-in gas path is communicated with the position, close to the second gas inlet, on the direct-current built-in gas path, and after the direct-current built-in gas path is communicated with the feedback built-in gas path, the gas in the;
a flow control valve is arranged in the built-in waterway of the heat exchanger and close to the inlet of the first waterway, and the flow control valve can control the water flow in the heat exchanger;
a thermostat control valve temperature sensing bulb is arranged on one side, located on the thermostat control valve, of the built-in gas path of the valve block;
the first gas outlet of the gas inlet joint is connected with the second gas inlet of the heat exchanger;
the fourth gas inlet of the gas outlet joint is connected with the third gas outlet of the valve block;
the gas heater also comprises a control system, the control system controls the flow of the thermostat control valve temperature sensing bulb, the steering valve and the flow valve, the control variables comprise gas temperature, the switch of the steering valve and the flow valve, the gas is detected by the thermostat control valve temperature sensing bulb after passing through the direct-current built-in gas circuit of the heat exchanger and the built-in gas circuit of the valve block, and the gas is directly output if the temperature is qualified; when the temperature is too low, the control system controls the thermostat control valve to control the output flow of the gas, the steering valve is reversed, the direct-current built-in gas circuit in the heat exchanger is communicated with the feedback built-in gas circuit, the gas with the too low temperature flows into the direct-current built-in gas circuit in the heat exchanger again to exchange heat again, meanwhile, the flow valve is controlled to increase the flow of water and improve the temperature of the gas after heat exchange, after the thermostat control valve temperature sensing bulb is detected to be qualified, the steering valve is reversed, the direct-current built-in gas circuit is not communicated with the feedback built-in gas circuit, and the gas; when the temperature is too high, the control system controls the flow valve to reduce the flow of water, meanwhile, the steering valve is reversed, the direct-current built-in gas circuit in the heat exchanger and the feedback built-in gas circuit are communicated, the gas with the too high temperature flows into the direct-current built-in gas circuit in the heat exchanger again to exchange heat again, the temperature of the gas after heat exchange is reduced, the reversing valve is reversed after the thermostat control valve temperature sensing bulb is detected to be qualified, the direct-current built-in gas circuit and the feedback built-in gas circuit are not communicated, and the gas is directly output;
and an insulating fireproof moisture-proof coating is sprayed on the outer side of the gas heater.
The positioning device comprises a mounting ring, a hydraulic rod is detachably mounted inside the mounting ring, a contraction ring is detachably mounted on the surface of the bottom end of the hydraulic rod, and a mounting opening is formed in the surface of the mounting ring.
The built-in air path of the heat exchanger comprises a second air inlet and a second air outlet arranged on one surface connected with the valve block, and the built-in water path of the heat exchanger comprises a first water path inlet and a first water path outlet arranged on the surface connected with the external water path connecting pipeline.
The external waterway connecting pipeline comprises a second waterway inlet and a second waterway outlet which is arranged on one surface connected with the valve block.
The built-in air path of the valve block comprises a second air inlet arranged on one side, connected with the heat exchanger, of the valve block and a second air outlet arranged on one side, connected with the air outlet connector, of the valve block, and a third water path inlet arranged on the right side of the valve block and connected with the connecting pipeline and a third water path outlet arranged on the lower side of the valve block.
The thermostat control valve comprises a valve block, a thermostat control valve and a valve body, wherein a mounting hole for mounting the thermostat control valve is formed in the valve block, and a plug for plugging the end part of the mounting hole is arranged in the mounting hole.
Wherein, install control valve body and thermostat body in the mounting hole.
Wherein, the plug is an inner hexagonal plug screw.
The technical scheme of the invention has the following beneficial effects:
in the scheme, the gas heater drives the contraction ring to contract by using the hydraulic rod to fix the gas inlet pipes of different models, so that the gas inlet is suitable for the gas inlet pipes of various models, and the problem that the gas conveying efficiency is reduced due to the fact that the pipelines are loosened when the gas inlet pipes with the diameter smaller than that of the gas inlet are replaced due to the fact that the gas inlet ports are fixed and the gas inlet pipes are different in model is solved; in the scheme, the gas heater ensures that the valve body is convenient to disassemble by utilizing the mutual matching of the mounting groove, the connecting rod and the connecting ring, and avoids the problems that once moist gas appears around, the surface of a bolt is rusted for a long time and the connection between fixed components becomes firm and inconvenient to disassemble, because the valve body is fixedly mounted on the surface of the heater through the bolt and the heater works in the external environment; in the scheme, when the gas heater is used, gas enters from the gas inlet joint, enters the valve block after being heated by the heat exchanger, and is discharged after passing through the thermostat control valve temperature sensing bulb; when the temperature of the gas sensed by the thermostat control valve temperature sensing bulb is not about the preset temperature, the flow of water entering the built-in waterway of the connecting assembly is controlled, so that the water flowing through the heat exchanger just heats the gas to about the preset temperature, and feedback control is realized; the heated gas has a stable temperature range, so that the problems that the fluctuation of the temperature range is large, the temperature is low, and the temperature is lower than minus thirty ℃ in extremely cold areas, which causes difficulty in starting, and the air-fuel ratio of the engine is unstable due to the large fluctuation of the temperature range, so that the engine is not stable in operation and high in noise are solved; the built-in gas circuits in the valve block are formed by communicating holes in the valve block instead of specific pipelines, a gas pipeline does not need to be arranged between the heat exchanger and the valve block, the modularized installation is realized, the connecting workload is small, the cost is low, the installation efficiency is improved, and meanwhile, the hidden danger of gas leakage is eliminated; the invention integrates the heat exchanger and the thermostat control valve, has small volume and high quality and is beneficial to centralized production.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic top view of a portion of the heat exchanger of the present invention;
FIG. 3 is an enlarged view of the structure at A of FIG. 2 according to the present invention;
FIG. 4 is a schematic view of the internal structure of the first gas inlet according to the present invention;
FIG. 5 is a schematic view of a positioning apparatus according to the present invention;
FIG. 6 is a schematic view of an air inlet joint configuration of the present invention;
FIG. 7 is a schematic view of the heat exchanger of the present invention;
FIG. 8 is a schematic structural view of an external waterway connection pipeline according to the present invention;
FIG. 9 is a schematic view of the bottom view of the valve block of the present invention;
FIG. 10 is a schematic top view of the valve block of the present invention;
FIG. 11 is a schematic view of the thermostat control valve configuration of the present invention;
FIG. 12 is a schematic view of an outlet structure according to the present invention.
[ reference numerals ]
1. An air inlet joint; 111. a first gas inlet; 112. a first gas outlet; 2. a heat exchanger; 21. a second gas inlet; 22. a second gas outlet; 211. a first waterway inlet; 212. a first waterway outlet; 3. the external waterway is connected with the pipeline; 311. a second waterway inlet; 312. a second waterway outlet; 4. a valve block; 41. a third gas inlet; 42. a third gas outlet; 411. a third waterway inlet; 412. a third waterway outlet; 5. a thermostat control valve; 51. a control valve body; 52. a thermostat body; 53. a plug; 6. an air outlet joint; 61. a fourth gas inlet; 62. a fourth gas outlet; 7. a mounting cavity; 8. connecting grooves; 9. a connecting plate; 10. a connecting ring; 11. positioning holes; 12. positioning equipment; 121. a mounting ring; 122. a hydraulic lever; 123. a shrink ring; 124. and (7) installing the opening.
Detailed Description
In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1 to 12, an embodiment of the present invention provides a gas heater, which includes an air inlet connector 1, a heat exchanger 2, an external water path connecting pipeline 3, a thermostat control valve 5, an air outlet connector 6, a first gas inlet 111, a first gas outlet 112, a third gas inlet 41, and a fourth gas outlet 62, wherein the valve block 4 is detachably mounted on the heat exchanger 2, an installation cavity 7 is formed on a surface of the heat exchanger 2, a connection groove 8 is formed on one side inside the installation cavity 7, a connection plate 9 is clamped inside the connection groove 8, a connection ring 10 is detachably mounted on a surface of the connection plate 9, a positioning hole 11 is formed on a surface of the connection ring 10, and a positioning device 12 is detachably mounted inside the first gas inlet 111.
As shown in fig. 1, the valve block 4 and the heat exchanger 2 are respectively provided with an internal water path and an internal air path, the internal water path and the internal air path of the valve block 4 are both formed by communicating holes on the valve block 4, the internal air path of the valve block 4 is communicated with the internal air path of the heat exchanger 2, the internal water path of the valve block 4 is communicated with the internal water path of the heat exchanger 2 through an external water path pipeline, and the thermostat control valve 5 is arranged in the internal water path of the valve block 4. In this embodiment, a thermostat control valve temperature sensing bulb is disposed on one side of the built-in gas path of the valve block 4, which is located on the thermostat control valve 5.
The first gas outlet 112 of the inlet connector 1 is connected to the second gas inlet 21 of the heat exchanger 2, and the fourth gas inlet 61 of the outlet connector 6 is connected to the third gas outlet 42 of the valve block 4.
As shown in fig. 4 and 5, the positioning device 12 includes a mounting ring 121, a hydraulic rod 122 is detachably mounted inside the mounting ring 121, a shrink ring 123 is detachably mounted on a surface of a bottom end of the hydraulic rod 122, and a mounting opening 124 is opened on a surface of the mounting ring 121.
In this embodiment, the built-in gas path of the heat exchanger 2 includes a direct-current built-in gas path and a feedback built-in gas path, two ends of the direct-current built-in gas path are respectively a second gas inlet 21 and a second gas outlet 22, one end of the feedback built-in gas path is communicated with the direct-current built-in gas path near the second gas outlet 22, a diverter valve is installed at the communication position to control the diverter valve to control the circulating gas in the direct-current built-in gas path to flow out from the second gas outlet 22 or into the feedback built-in gas path, the other end of the feedback built-in gas path is communicated with the direct-current built-in gas path near the second gas inlet 21, and when the diverter valve controls the direct-current built-in gas path to be communicated with the feedback built-in gas path, the gas in the direct-current built-in gas path returns back to the direct.
As shown in fig. 7, the built-in gas circuit of the heat exchanger 2 includes a second gas inlet 21 and a second gas outlet 22 disposed on a side connected to the valve block 4, the built-in water circuit of the heat exchanger 2 includes a first water circuit inlet 211 and a first water circuit outlet 212 disposed on a side connected to the external water circuit connecting pipe 3, and a flow control valve is disposed in the built-in water circuit of the heat exchanger 2 near the first water circuit inlet 211 and can control water flow in the heat exchanger 2.
As shown in fig. 8, the external waterway connection pipe 3 includes a second waterway inlet 311 and a second waterway outlet 312 disposed on a side connected to the valve block 4, the internal waterway of the valve block 4 includes a second gas inlet 21 disposed on a side connected to the heat exchanger 2 of the valve block 4 and a second gas outlet 22 disposed on a side connected to the gas outlet joint 6, and the internal waterway of the valve block 4 includes a third waterway inlet 411 disposed on a right side of the valve block 4 and connected to the connection pipe and a third waterway outlet 412 disposed on a lower side of the valve block 4.
As shown in fig. 11, a mounting hole for mounting the thermostat control valve 5 is formed in the valve block 4, a plug 53 for plugging an end of the mounting hole is provided in the mounting hole, a control valve body 51 and a thermostat body 52 are mounted in the mounting hole, and the plug 53 is an inner hexagonal plug.
As shown in fig. 5, the positioning device 12 includes a mounting ring 121, a hydraulic rod 122 is detachably mounted inside the mounting ring 121, a shrink ring 123 is detachably mounted on a surface of a bottom end of the hydraulic rod 122, and a mounting opening 124 is opened on a surface of the mounting ring 121.
In particular, the mounting opening 124 is provided to facilitate the fixing of the mounting ring 121, so as to ensure the stability of the positioning device 12 and enhance the practicability of the device.
Wherein, the hydraulic stem 122 is for hang the tablet for dragon, supports the gas spring model.
The working process of the invention is as follows:
when the gas heater is used, in order to ensure that the first gas inlet 111 can be suitable for various types of gas inlet pipes, the positioning device 12 is arranged inside the first gas inlet 111, when the diameter of the gas inlet pipe is smaller than that of the first gas inlet 111, the hydraulic rod 122 is started, then the hydraulic rod 122 drives the contraction ring 123 to contract until the inner surface of the contraction ring 123 is attached to the surface of the gas inlet pipe, so that the gas inlet pipe is fixed, the gas inlet pipe is prevented from shaking, the gas inlet efficiency of the device is improved, and the practicability of the device is enhanced; gas heater is when using, for the convenience of valve block 4's dismantlement, so be provided with installation cavity 7 in valve block 4's bottom, both sides inside installation cavity 7 are provided with spread groove 8, when valve block 4 need be dismantled, only need hold the go-between 10 on valve block 4 both sides connecting plate 9 through current device, then just can take connecting plate 9 out from spread groove 8, and then dismantle valve block 4, because connecting plate 9 is the joint in spread groove 8, so can directly take out, thereby make things convenient for valve block 4's dismantlement, simultaneously also need not receive environmental factor's influence, inconvenient valve block 4's dismantlement, the practicality of device has been strengthened.
The gas heater also comprises a control system, the control system controls the flow of the thermostat control valve temperature sensing bulb, the steering valve and the flow valve, the control variables comprise gas temperature, the switch of the steering valve and the flow valve, the gas is detected by the thermostat control valve temperature sensing bulb after passing through the direct-current built-in gas circuit of the heat exchanger and the built-in gas circuit of the valve block, and the gas is directly output if the temperature is qualified; when the temperature is too low, the control system controls the thermostat control valve to control the output flow of the gas, the steering valve is reversed, the direct-current built-in gas circuit in the heat exchanger is communicated with the feedback built-in gas circuit, the gas with the too low temperature flows into the direct-current built-in gas circuit in the heat exchanger again to exchange heat again, meanwhile, the flow valve is controlled to increase the flow of water and improve the temperature of the gas after heat exchange, after the thermostat control valve temperature sensing bulb is detected to be qualified, the steering valve is reversed, the direct-current built-in gas circuit is not communicated with the feedback built-in gas circuit, and the gas; the temperature is too high, the control system controls the flow valve to reduce the flow of water, meanwhile, the steering valve is reversed, the direct-current built-in gas circuit in the heat exchanger and the feedback built-in gas circuit are communicated, the gas with the too high temperature flows into the direct-current built-in gas circuit in the heat exchanger again to exchange heat again, the temperature of the gas after heat exchange is reduced, after the thermostat control valve temperature sensing bulb is detected to be qualified, the reversing valve is reversed, the direct-current built-in gas circuit and the feedback built-in gas circuit are not communicated, and the gas is directly output. The gas heater has a feedback system, realizes real-time detection, real-time feedback and timely adjustment, and accurately controls the temperature of output gas.
A pressure sensor is arranged in the first gas inlet. When the pressure sensor detects abnormity, the control system sends out an alarm signal, controls the flow valve and the thermostat control valve to be closed, waits for maintenance of workers, and avoids major accidents. The insulating fireproof and moistureproof coating is sprayed on the outer side of the gas heater, so that the gas heater is prevented from being damaged by a humid environment, electric leakage is avoided, and serious accidents such as fire disasters are avoided.
In the scheme, when the gas heater is used, gas enters from the gas inlet joint 1, enters the valve block 4 after being heated by the heat exchanger 2, and is discharged after passing through the temperature sensing bulb of the thermostat control valve 5, and when the temperature of the gas sensed by the temperature sensing bulb of the thermostat control valve 5 is not about the preset temperature, the flow of water entering the built-in water channel of the valve block 4 is controlled, so that the water flowing through the heat exchanger 2 just heats the gas to about the preset temperature, and feedback control is realized; built-in gas circuit in the valve block 4 all have by the hole intercommunication on the coupling assembling 2 forms, and the pipeline of concretization is not needed to set up the pipeline between heat exchanger and valve block 4, realizes the modularization installation, has still eliminated gas leakage's hidden danger when improving the installation effectiveness.
The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;
secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the invention, only the structures related to the disclosed embodiments are referred to, other structures can refer to common designs, and the same embodiment and different embodiments of the invention can be combined with each other without conflict;
and finally: the above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention are intended to be included in the scope of the present invention.
Claims (8)
1. A gas heater comprises a gas inlet joint, a heat exchanger, an external waterway connection pipeline, a thermostat control valve, a gas outlet joint, a first gas inlet, a first gas outlet, a third gas inlet and a fourth gas outlet, and is characterized in that a valve block is detachably mounted on the heat exchanger, a mounting cavity is formed in the surface of the heat exchanger, a connecting groove is formed in one side of the inside of the mounting cavity, a connecting plate is clamped in the connecting groove, a connecting ring is detachably mounted on the surface of the connecting plate, a positioning hole is formed in the surface of the connecting ring, positioning equipment is detachably mounted in the first gas inlet, and a pressure sensor is arranged in the first gas inlet;
the valve block and the heat exchanger are respectively provided with an internal water path and an internal air path, the internal water path and the internal air path of the valve block are formed by communicating holes on the valve block, the internal air path of the valve block is communicated with the internal air path of the heat exchanger, the internal water path of the valve block is communicated with the internal water path of the heat exchanger through an external water path pipeline, and the thermostat control valve is arranged in the internal water path of the valve block;
the built-in gas path of the heat exchanger comprises a direct-current built-in gas path and a feedback built-in gas path, wherein a second gas inlet and a second gas outlet are respectively arranged at two ends of the direct-current built-in gas path, one end of the feedback built-in gas path is communicated with the position, close to the second gas outlet, on the direct-current built-in gas path, a steering valve is arranged at the communication position, the steering valve is controlled to control circulating gas in the direct-current built-in gas path to flow out of or into the feedback built-in gas path from the two gas outlets, the other end of the feedback built-in gas path is communicated with the position, close to the second gas inlet, on the direct-current built-in gas path, and after the direct-current built-in gas path is communicated with the feedback built-in gas path, the gas in the;
a flow control valve is arranged in the built-in waterway of the heat exchanger and close to the inlet of the first waterway, and the flow control valve can control the water flow in the heat exchanger;
a thermostat control valve temperature sensing bulb is arranged on one side, located on the thermostat control valve, of the built-in gas path of the valve block;
the first gas outlet of the gas inlet joint is connected with the second gas inlet of the heat exchanger;
the fourth gas inlet of the gas outlet joint is connected with the third gas outlet of the valve block;
the control system controls the flow of the thermostat control valve temperature sensing bulb, the steering valve and the flow valve, the control variables comprise gas temperature, the switch of the steering valve and the flow valve, the gas is detected by the thermostat control valve temperature sensing bulb after passing through the direct-current built-in gas circuit of the heat exchanger and the built-in gas circuit of the valve block, and the gas is directly output if the temperature is qualified; when the temperature is too low, the control system controls the thermostat control valve to control the output flow of the gas, the steering valve is reversed, the direct-current built-in gas circuit in the heat exchanger is communicated with the feedback built-in gas circuit, the gas with the too low temperature flows into the direct-current built-in gas circuit in the heat exchanger again to exchange heat again, meanwhile, the flow valve is controlled to increase the flow of water and improve the temperature of the gas after heat exchange, after the thermostat control valve temperature sensing bulb is detected to be qualified, the steering valve is reversed, the direct-current built-in gas circuit is not communicated with the feedback built-in gas circuit, and the gas; when the temperature is too high, the control system controls the flow valve to reduce the flow of water, meanwhile, the steering valve is reversed, the direct-current built-in gas circuit in the heat exchanger and the feedback built-in gas circuit are communicated, the gas with the too high temperature flows into the direct-current built-in gas circuit in the heat exchanger again to exchange heat again, the temperature of the gas after heat exchange is reduced, the reversing valve is reversed after the thermostat control valve temperature sensing bulb is detected to be qualified, the direct-current built-in gas circuit and the feedback built-in gas circuit are not communicated, and the gas is directly output;
when the pressure sensor detects abnormality, the control system sends out an alarm signal, controls the flow valve and the thermostat control valve to be closed, and waits for maintenance of workers;
and an insulating fireproof moisture-proof coating is sprayed on the outer side of the gas heater.
2. The gas heater of claim 1, wherein the positioning device comprises a mounting ring, a hydraulic rod is detachably mounted inside the mounting ring, a shrink ring is detachably mounted on the surface of the bottom end of the hydraulic rod, and a mounting opening is formed in the surface of the mounting ring.
3. The gas heater of claim 1, wherein the internal air path of the heat exchanger includes a second gas inlet and a second gas outlet disposed at a side connected to the valve block, and the internal water path of the heat exchanger includes a first water path inlet and a first water path outlet disposed at a side connected to the external water path connection line.
4. The gas heater of claim 1, wherein the external waterway connection conduit includes a second waterway inlet and a second waterway outlet disposed at a side connected to the valve block.
5. The gas heater of claim 1, wherein the built-in gas circuit of the valve block comprises a second gas inlet arranged on one surface of the valve block connected with the heat exchanger and a second gas outlet arranged on one surface connected with the gas outlet joint, and the built-in water circuit of the valve block comprises a third water circuit inlet arranged on the right side of the valve block and connected with the connecting pipeline and a third water circuit outlet arranged on the lower side of the valve block.
6. The gas heater of claim 5, wherein the valve block is provided with a mounting hole for mounting the thermostat control valve therein, and the mounting hole is provided therein with a plug for plugging an end of the mounting hole.
7. The gas heater of claim 5, wherein the mounting bore has mounted therein a control valve body and a thermostat body.
8. The gas heater of claim 5, wherein the plug is a hexagonal socket head.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011331933.0A CN112555059B (en) | 2020-11-24 | 2020-11-24 | Gas heater |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011331933.0A CN112555059B (en) | 2020-11-24 | 2020-11-24 | Gas heater |
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| CN112555059A true CN112555059A (en) | 2021-03-26 |
| CN112555059B CN112555059B (en) | 2022-04-19 |
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| JP2004332592A (en) * | 2003-05-06 | 2004-11-25 | Nikki Co Ltd | Heat exchanger for lpg |
| CN203742836U (en) * | 2014-04-02 | 2014-07-30 | 广西玉柴机器股份有限公司 | Fuel gas supply device of engine |
| CN104806383A (en) * | 2015-04-30 | 2015-07-29 | 派克汉尼汾过滤系统(上海)有限公司 | Integrated multifunctional module for fuel filtering, heating and temperature control of gas engine |
| US20170254259A1 (en) * | 2016-03-07 | 2017-09-07 | HyTech Power, Inc. | Method of Generating and Distributing a Second Fuel for an Internal Combustion Engine |
| WO2018070125A1 (en) * | 2016-10-13 | 2018-04-19 | 川崎重工業株式会社 | Gas engine system |
| CN209838559U (en) * | 2019-04-18 | 2019-12-24 | 新乡市艾洁净化科技有限公司 | Gas temperature control filtering component |
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2020
- 2020-11-24 CN CN202011331933.0A patent/CN112555059B/en active Active
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|---|---|---|---|---|
| JP2004332592A (en) * | 2003-05-06 | 2004-11-25 | Nikki Co Ltd | Heat exchanger for lpg |
| CN203742836U (en) * | 2014-04-02 | 2014-07-30 | 广西玉柴机器股份有限公司 | Fuel gas supply device of engine |
| CN104806383A (en) * | 2015-04-30 | 2015-07-29 | 派克汉尼汾过滤系统(上海)有限公司 | Integrated multifunctional module for fuel filtering, heating and temperature control of gas engine |
| US20170254259A1 (en) * | 2016-03-07 | 2017-09-07 | HyTech Power, Inc. | Method of Generating and Distributing a Second Fuel for an Internal Combustion Engine |
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| CN209838559U (en) * | 2019-04-18 | 2019-12-24 | 新乡市艾洁净化科技有限公司 | Gas temperature control filtering component |
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| CN112555059B (en) | 2022-04-19 |
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