CN208534669U - Gas engine air intake heater - Google Patents

Gas engine air intake heater Download PDF

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Publication number
CN208534669U
CN208534669U CN201821210052.1U CN201821210052U CN208534669U CN 208534669 U CN208534669 U CN 208534669U CN 201821210052 U CN201821210052 U CN 201821210052U CN 208534669 U CN208534669 U CN 208534669U
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China
Prior art keywords
heating sheet
ceramic
heating
shell
air intake
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CN201821210052.1U
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Chinese (zh)
Inventor
周胜余
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Weichai Xigang New Energy Power Co Ltd
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Weichai Xigang New Energy Power Co Ltd
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Abstract

The utility model discloses a kind of gas engine air intake heaters, belong to gas engine technical field, including hollow heater housings, air inlet and air outlet, ceramic grid and wavy heating sheet are installed in the heater case body, the ceramics grid includes the ceramic shell and several ceramic flase floors with inlet channel, seal chamber is equipped between the ceramic shell and the heater housings, each ceramic flase floor is equipped with the heating sheet accommodating chamber for being connected to the seal chamber, one end of the heating sheet is located in the seal chamber, the other end, which passes through the heating sheet accommodating chamber of head end and sequentially passes through, is located in the middle the heating sheet accommodating chamber, until being pierced by the heating sheet accommodating chamber of tail end;The binding post being connected with the heating sheet is fixed on the heater housings.The utility model improves engine cold-start performance, and conducts heat using ceramic grid and completely cut off heating sheet and mixed gas, improves security performance.

Description

Gas engine air intake heater
Technical field
The utility model belongs to gas engine technical field more particularly to a kind of gas engine air intake heater.
Background technique
Because Environmental pollution is increasingly paid attention to, it is proposed the emission regulation of vehicle and increasingly tighter.Together Shi Guojia also widelys popularize the clean energy products such as gas product.In the case where country widelys popularize, natural gas engine technology is got over Come more mature, natural gas engine has become the indispensable power source of the industries such as commercial vehicle.
Natural gas engine is premix spark-ignition engine, in cold winter since environment temperature is too low, starting speed The temperature and pressure that low factor causes engine compresses to end is too low, and kindling is not achieved and requires and can not catch fire.Natural gas combustion Burning primary product is water and carbon dioxide, and vapor, which rests on, after winter engine has been run leads to spark in cylinder It is easy the frost that freezes at plug, eventually leads to engine cold-start difficulty.
Utility model content
The technical problem to be solved by the utility model is to provide a kind of gas engine air intake heaters, to solve to fire The gas engine technical problem difficult in winter cold start-up.
In order to solve the above technical problems, the technical solution of the utility model is: gas engine air intake heater, comprising: Hollow heater housings, the heater housings are equipped with air inlet and air outlet, be located in the heater case body it is described into Ceramic grid heating device is installed between port and the gas outlet, the ceramics grid heating device include ceramic grid and Heating sheet, the ceramics grid include have inlet channel ceramic shell and several to be located at the inlet channel interior and simultaneously Spaced ceramic flase floor is arranged, seal chamber, each pottery are equipped between the ceramic shell and the heater housings Porcelain flase floor is equipped with the heating sheet accommodating chamber of perforation itself, and the heating sheet accommodating chamber is connected to the seal chamber, the heating One end of piece is located in the seal chamber, and the other end passes through the heating sheet accommodating chamber of head end and sequentially passes through and is located in the middle The heating sheet accommodating chamber, until being pierced by the heating sheet accommodating chamber of tail end, the other end of the heating sheet also is located at described In seal chamber, the heating sheet is waveform;The wiring being connected with the heating sheet is fixed on the heater housings Column.
As an improvement being respectively equipped with head protector at the wave crest and trough of the heating sheet, the head protector is located at institute It states in seal chamber, the head protector has the groove of the multiple wave crests or multiple troughs that accommodate the heating sheet.
As a further improvement, the heating sheet has several, and several heating sheets are spaced setting side by side, adjacent Two heating sheets pass through a connection sheet connection;Each heating sheet is correspondingly arranged there are two the head protector.
As a further improvement, the head protector is made of isolation material.
As an improvement the ceramic shell includes two transparent covers being oppositely arranged and the company between two transparent covers Adapter tube body, the ceramics flase floor are set to the connection pipe body.
As an improvement the heater housings include shell and cover board, the shell it is open at one end, the other end is set The locating flange protruded out in oriented, is equipped with first seal between the ceramic shell and the locating flange, the cover board is solid Dingan County is loaded on the open end of the shell and is equipped with second seal between the ceramic shell;The air inlet is set to described Locating flange, the gas outlet is set to the cover board or the air inlet is set to the cover board, and the gas outlet is set to described Locating flange.
As a further improvement, mounting hole is equipped on the locating flange and the cover board.
After above-mentioned technical proposal, the beneficial effects of the utility model are:
Gas engine air intake heater provided by the embodiment of the utility model installs ceramic grid in heater case body Heating device, when the air intake heater is installed to the air inlet pipe of gas engine, Engine ECU can be sensed according to engine The intake air temperature of device detection judges whether to need to heat air inlet, and issues different fingers to the relay of air intake heater It enables, the heater relay for being connected to instruction controls heater on-off according to instruction difference, to control the work shape of heater State just stops heating after intake air temperature ascent engine is turned on fire, can be obviously improved engine cold-start performance in this way.
Meanwhile when engine is shut down because of situations such as accident, the combustion gas in engine mixed gas pipeline is easy to happen suck-back, To flow backward to the air intake heater in air inlet pipe, since exposed metal heating has the risk for lighting mixed gas, this is practical The ceramic grid heating device of novel offer, is arranged seal chamber between the ceramic shell and heater housings of ceramic grid, will Heating sheet be arranged in seal chamber, effectively completely cut off heating sheet and mixed gas, avoid heating sheet directly with mixed gas Contact, substantially increases security performance;In addition, devise multiple ceramic flase floors in ceramic grid, and by ceramic flase floor It is arranged to hollow, so that heating sheet is passed through heating sheet accommodating chamber, heats are conducted using multiple ceramic flase floors in this way, compared to biography The heating surface (area) (HS of the heater of system, ceramic grid is bigger, while keeping air heats uniform, ensure that the effect to air heating.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model embodiment;
Fig. 2 is the top view of Fig. 1;
Fig. 3 is the left view of Fig. 1;
Fig. 4 is the rearview of Fig. 1;
Fig. 5 is A-A cross-sectional view in Fig. 1;
Fig. 6 is the perspective view of the utility model embodiment;
The explosive view of Fig. 6 of Fig. 7;
Fig. 8 is the perspective view of ceramic grid in Fig. 7;
In figure: 1- heater housings, 11- shell, 111- locating flange, 112- mounting hole, 12- cover board, 121- mounting hole, 13- screw, 2- air inlet, the gas outlet 3-, 4- ceramics grid, 41- ceramic shell, 411- transparent cover, 412- connection pipe body, 42- pottery Porcelain flase floor, 421- heating sheet accommodating chamber, 43- inlet channel, 5- heating sheet, 51- connection sheet, 6- seal chamber, 7- binding post, 8- First seal, 9- second seal, 10- head protector, 101- groove.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain The utility model is not used to limit the utility model.
As Fig. 1 to Fig. 8 jointly shown in, a kind of gas engine air intake heater, including hollow heater housings 1, heating Device shell 1 includes shell 11 and cover board 12, shell 11 it is open at one end, the other end is equipped with the locating flange 111 that inwardly protrudes out, outside Shell 11 is cuboid, and cover board 12 is fixedly installed in the open end of shell 11 by fastener.Fastener is preferably screw 13.Add Hot device shell 1 is equipped with air inlet 2 and gas outlet 3, and in the present embodiment, air inlet 2 is set to cover board 12, and gas outlet 3 is set to fixed Position flange 111.Certainly, alternatively, air inlet 2 can also be set to locating flange 111, gas outlet 3 is set to lid Plate 12.
Air inlet pipe is installed in order to facilitate the air intake heater, and locating flange 111 is equipped with mounting hole 112, on cover board 12 Equipped with mounting hole 121.
Ceramic grid heating device, ceramic grid are installed between air inlet 2 and gas outlet 3 in heater housings 1 Heating device includes ceramic grid 4 and heating sheet 5, and heating sheet 5 is METAL HEATING PROCESS piece, and the effect of ceramic grid 4 is conduction heat Gas is heated, and completely cuts off mixed gas and heating sheet 5, specifically, ceramic grid 4 includes the ceramic case with inlet channel 43 Body 41 and several are located in inlet channel 43 and spaced ceramic flase floor 42 side by side, ceramic flase floor 42 it is specific Quantity those skilled in the art can select according to actual needs, and sealing is equipped between ceramic shell 41 and heater housings 1 Chamber 6, each ceramics flase floor 42 are equipped with the heating sheet accommodating chamber 421 of perforation itself, 421 communication seals chamber of heating sheet accommodating chamber 6, one end of heating sheet 5 is located in seal chamber 6, during the heating sheet accommodating chamber 421 and sequentially passing through that the other end passes through head end is located at Between heating sheet accommodating chamber 421, until being pierced by the heating sheet accommodating chamber 421 of tail end, the other end of heating sheet also is located at seal chamber 6 Interior, heating sheet 5 is waveform;The binding post 7 being connected with heating sheet 5 is fixed on heater housings 1, binding post 7 has two It is a.In the present embodiment, the operating voltage of the air intake heater is 24V.
Specifically, ceramic shell 41 includes two transparent covers 411 being oppositely arranged and the connecting tube between two transparent covers 411 Body 412, ceramic flase floor 42 are set to connection pipe body 412.First seal 8 is equipped between ceramic shell 41 and locating flange 111, Second seal 9 is equipped between cover board 12 and ceramic shell 41.First seal 8 and second seal 9 are preferably gasket, when So, first seal 8 and second seal 9 can also select other sealed materials that those skilled in the art can be realized, This is repeated no more.
In order to fix heating sheet 5, and heating sheet 5 is avoided to contact with other components, wave crest and the trough punishment of heating sheet 5 Not She You head protector 10, head protector 10 is located in seal chamber 6, and head protector 10 has the multiple wave crests or multiple for accommodating heating sheet 5 The groove 101 of trough.Head protector 10 is made using isolation material, such as asbestos can be used etc..
If the length of inlet channel 43 is longer, in order to guarantee heating effect, it is preferred that heating sheet 5 has several, Ruo Ganjia The interval setting side by side of backing 5, two adjacent heating sheets 5 are connected by a connection sheet 51;It in this way can be by all heating sheets 5 It is together in series, each heating sheet 5 is correspondingly arranged there are two head protector 10.
When the air intake heater is installed to the air inlet pipe (not shown) of gas engine, Engine ECU is (in figure not Show) it can judge whether to need to heat air inlet according to the intake air temperature that engine sensor detects, and add to air inlet The relay (not shown) of hot device issues different instruction, and the heater relay for being connected to instruction is controlled according to instruction difference Heater on-off just stops heating to control the working condition of heater after intake air temperature ascent engine is turned on fire, this Sample can be obviously improved engine cold-start performance.
Meanwhile when engine is shut down because of situations such as accident, the combustion gas in engine mixed gas pipeline is easy to happen suck-back, To flow backward to the air intake heater in air inlet pipe, since exposed metal heating has the risk for lighting mixed gas, this is practical The ceramic grid heating device that new embodiment provides conducts heat using ceramic grid and completely cuts off heating sheet 5 and mixed gas, Contact of the heating sheet 5 directly with mixed gas is avoided, security performance is substantially increased;In addition, compared to traditional heater, The heating surface (area) (HS of ceramic grid is bigger, while keeping air heats uniform, ensure that the effect to air heating.The utility model is real The gas engine air intake heater for applying example offer, is mainly used in premixed natural gas engine.
Gas engine air intake heater provided by the embodiment of the utility model, is not only obviously improved engine cold-start Can, and conduct heat using ceramic grid and completely cut off heating sheet and mixed gas, substantially increase security performance;Have simultaneously Better heating effect.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model Protection scope within.

Claims (7)

1. gas engine air intake heater, comprising: hollow heater housings, the heater housings are equipped with air inlet and go out Port, which is characterized in that ceramic grid is equipped between the air inlet and the gas outlet in the heater case body Heating device, the ceramics grid heating device include ceramic grid and heating sheet, and the ceramics grid includes logical with air inlet The ceramic shell in road and several are located in the inlet channel and spaced ceramic flase floor side by side, the ceramic case Seal chamber is equipped between body and the heater housings, the heating sheet that each ceramic flase floor is equipped with perforation itself accommodates Chamber, the heating sheet accommodating chamber are connected to the seal chamber, and one end of the heating sheet is located in the seal chamber, and the other end passes through The heating sheet accommodating chamber of head end simultaneously sequentially passes through and is located in the middle the heating sheet accommodating chamber, until being pierced by the described of tail end Heating sheet accommodating chamber, the other end of the heating sheet also are located in the seal chamber, and the heating sheet is waveform;The heating The binding post being connected with the heating sheet is fixed on device shell.
2. gas engine air intake heater according to claim 1, which is characterized in that the wave crest and wave of the heating sheet Head protector is respectively equipped at paddy, the head protector is located in the seal chamber, and the head protector, which has, accommodates the heating sheet The groove of multiple wave crests or multiple troughs.
3. gas engine air intake heater according to claim 2, which is characterized in that the heating sheet has several, Several heating sheets are spaced setting side by side, and two adjacent heating sheets pass through a connection sheet connection;Add described in each Backing is correspondingly arranged there are two the head protector.
4. gas engine air intake heater according to claim 2, which is characterized in that the head protector uses insulation material Matter is made.
5. gas engine air intake heater according to claim 1, which is characterized in that the ceramic shell includes two-phase Transparent cover to setting and the connection pipe body between two transparent covers, the ceramics flase floor are set to the connection pipe body.
6. gas engine air intake heater according to any one of claim 1 to 5, which is characterized in that the heating Device shell includes shell and cover board, the shell it is open at one end, the other end is equipped with the locating flange inwardly protruded out, the ceramics Between shell and the locating flange be equipped with first seal, the cover board be fixedly installed in the open end of the shell and with institute It states and is equipped with second seal between ceramic shell;The air inlet is set to the locating flange, and the gas outlet is set to the lid Plate or the air inlet are set to the cover board, and the gas outlet is set to the locating flange.
7. gas engine air intake heater according to claim 6, which is characterized in that the locating flange and the lid Mounting hole is equipped on plate.
CN201821210052.1U 2018-07-27 2018-07-27 Gas engine air intake heater Active CN208534669U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201821210052.1U CN208534669U (en) 2018-07-27 2018-07-27 Gas engine air intake heater

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201821210052.1U CN208534669U (en) 2018-07-27 2018-07-27 Gas engine air intake heater

Publications (1)

Publication Number Publication Date
CN208534669U true CN208534669U (en) 2019-02-22

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ID=65385095

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201821210052.1U Active CN208534669U (en) 2018-07-27 2018-07-27 Gas engine air intake heater

Country Status (1)

Country Link
CN (1) CN208534669U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108869140A (en) * 2018-07-27 2018-11-23 潍柴西港新能源动力有限公司 Gas engine air intake heater

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108869140A (en) * 2018-07-27 2018-11-23 潍柴西港新能源动力有限公司 Gas engine air intake heater

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