CN214170687U

CN214170687U - Gas heater

Info

Publication number: CN214170687U
Application number: CN202022745027.7U
Authority: CN
Inventors: 娄新胜; 郭拥军; 乔国平; 郭志英; 陈倩; 王婧媛
Original assignee: Xinjiang Ai Cleaning Technology Co ltd
Current assignee: Xinjiang Ai Cleaning Technology Co ltd
Priority date: 2020-11-24
Filing date: 2020-11-24
Publication date: 2021-09-10
Anticipated expiration: 2030-11-24

Abstract

The utility model provides a gas heater, which comprises a heat exchanger, wherein the heat exchanger is provided with a first built-in gas circuit and a first built-in water path, the heat exchanger is provided with a valve block, and the valve block is provided with a second built-in gas circuit and a second built-in water path; the first built-in gas path is communicated with the second built-in gas path, and the first built-in water path is communicated with the second built-in water path through an external water path connecting pipeline; a thermostat control valve is arranged in the second built-in water path, and a temperature sensing bulb of the thermostat control valve is arranged in the second built-in air path and on one side of the thermostat control valve. According to the scheme, the gas heater can be used for heating fuel of a gas engine, and heated gas has a stable temperature range; the utility model integrates the valve block, the heat exchanger and the thermostat control valve, has small volume and high quality, and is beneficial to centralized production; the built-in gas circuit of the valve block is formed by communicating holes instead of specific pipelines, so that the installation efficiency is improved, and the hidden trouble of gas leakage is eliminated.

Description

Gas heater

Technical Field

The utility model relates to a gas heating technical field especially indicates 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 paid attention 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 the natural gas (CNG) after vaporization or decompression of the Liquefied Natural Gas (LNG) is low, generally, between twenty-below zero and five-above zero, and in extremely cold regions, it is lower than thirty-below zero, which causes difficulty in starting, and because the temperature range fluctuates greatly, the air-fuel ratio of the engine is unstable, which easily causes unstable operation and loud noise of the engine. To solve this problem, natural gas is heated and stabilized to a certain extent.

In the existing market, the installation form 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 the following drawbacks: firstly, the functional part is large in volume; secondly, main spare part need be through external pipeline connection, pipeline connection work load is big, easily produce the piece, the leakage point is many, therefore with high costs, the quality risk is also high.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a gas heater is two independent parts with heat exchanger and thermostat control valve among the solution prior art, and the volume is great, adopts the tube coupling when connecting moreover, has that connection work load is big, easily produce the piece, the leak point is many, with high costs and the high problem of quality risk.

In order to solve the technical problem, the utility model provides a following technical scheme:

a gas heater comprises a heat exchanger, wherein the heat exchanger is provided with a first built-in gas circuit and a first built-in water circuit, the heat exchanger is provided with a valve block, and the valve block is provided with a second built-in gas circuit and a second built-in water circuit; the first built-in gas path is communicated with the second built-in gas path, and the first built-in water path is communicated with the second built-in water path through an external water path connecting pipeline; a thermostat control valve is arranged in the second built-in water path, and a temperature sensing bulb of the thermostat control valve is arranged in the second built-in air path and on one side of the thermostat control valve.

The first built-in gas circuit comprises a first gas inlet and a first gas outlet, the second built-in gas circuit comprises a second gas inlet and a second gas outlet, and the first gas outlet is communicated with the second gas inlet.

The first gas inlet is provided with a gas inlet joint, the gas inlet joint comprises a first gas inlet end and a first gas outlet end, and the first gas outlet end is connected with the first gas inlet.

The second gas outlet is provided with a gas outlet joint, the gas outlet joint comprises a second gas inlet end and a second gas outlet end, and the second gas inlet end is connected with the second gas outlet.

The first built-in waterway comprises a first waterway inlet and a first waterway outlet, the second built-in waterway comprises a second waterway inlet and a second waterway outlet, and the external waterway connecting pipeline comprises a water inlet end and a water outlet end, wherein the water inlet end is connected with the first waterway outlet, and the water outlet end is connected with the second waterway inlet.

The thermostat control valve is characterized in that a mounting hole for mounting the thermostat control valve is formed in the valve block, the control valve and the thermostat are mounted in the mounting hole, and a plug is arranged at the end of the mounting hole.

The valve block is detachably mounted on the heat exchanger, the second gas inlet is located on the side, facing the heat exchanger, of the valve block, the second gas outlet is located at the top of the valve block, the second water path inlet is located on the right side of the valve block, and the second water path outlet is located on the front face of the valve block.

The utility model discloses an above-mentioned technical scheme's beneficial effect as follows:

in the above scheme, the gas heater can be used for heating fuel of a gas engine, and heated gas has a stable temperature range; the utility model integrates the valve block, the heat exchanger and the thermostat control valve, has small volume and high quality, and is beneficial to centralized production; the built-in gas circuit of the valve block is formed by communicating holes instead of specific pipelines, and pipelines do not need to be arranged between the heat exchanger and the valve block, so that the modularized installation is realized, the installation efficiency is improved, and meanwhile, the hidden danger of gas leakage is eliminated.

Drawings

Fig. 1 is a schematic structural view of a gas heater according to the present invention;

fig. 2 is a schematic view of the air inlet joint structure of the gas heater of the present invention;

fig. 3 is a schematic structural diagram of a heat exchanger of the gas heater of the present invention;

fig. 4 is a schematic structural view of an external water path connecting pipeline of the gas heater of the present invention;

fig. 5 is a first structural schematic diagram of a valve block of the gas heater of the present invention;

fig. 6 is a second structural schematic diagram of the valve block of the gas heater of the present invention;

fig. 7 is a cross-sectional view of the gas heater of the present invention;

fig. 8 is a schematic structural view of the air outlet joint of the gas adder of the present invention.

[ reference numerals ]

1. An air inlet joint; 11. a first air inlet end; 12. a first air outlet end;

2. a heat exchanger; 21. a first gas inlet; 22. a first gas outlet; 211. a first waterway inlet; 212. a first waterway outlet;

3. the external waterway is connected with the pipeline; 311. a water inlet end; 312. a water outlet end;

4. a valve block; 41. a second gas inlet; 42. a second gas outlet; 411. a second waterway inlet; 412. a second waterway outlet;

5. a thermostat control valve; 51. a control valve; 52. a thermostat; 53. a plug;

6. an air outlet joint; 61. a second air inlet end; 62. and a second air outlet end.

Detailed Description

In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following detailed description will be given with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1 to 8, an embodiment of the present invention provides a gas heater, which includes a heat exchanger 2 for performing heat exchange on gas or heat exchange medium liquid flowing through the heat exchanger 2, the heat exchanger 2 is provided with a first built-in gas circuit and a first built-in water circuit, the heat exchanger 2 is provided with a valve block 4 for controlling temperature during heating gas, and the valve block 4 is provided with a second built-in gas circuit and a second built-in water circuit; the first built-in gas path is communicated with the second built-in gas path, and the first built-in water path is communicated with the second built-in water path through an external water path connecting pipeline 3; a thermostat control valve 5 is arranged in the second built-in water path, and a temperature sensing bulb of the thermostat control valve 5 is arranged in the second built-in air path and on one side of the thermostat control valve 5. The second built-in water path and the second built-in air path are formed by communicating holes in the valve block 4, namely the second built-in water path and the second built-in air path are formed by drilling holes in the surface of the valve block 4 towards the interior of the valve block 4 instead of specific pipelines, so that the modular installation is realized, the connection workload is small, the cost is low, the installation efficiency is improved, and meanwhile, the hidden danger of air leakage is eliminated.

As shown in fig. 3, the first built-in gas path includes a first gas inlet 21 and a first gas outlet 22, and as shown in fig. 5, the second built-in gas path includes a second gas inlet 41 and a second gas outlet 42, wherein the first gas outlet 22 communicates with the second gas inlet 41, thereby forming a built-in gas flow path of the gas heater.

As shown in fig. 1, an air inlet joint 1 is disposed at the first gas inlet 21, the air inlet joint 1 includes a first air inlet end 11 and a first air outlet end 12, and the first air outlet end 12 is connected to the first gas inlet 21.

The second gas outlet 42 is provided with a gas outlet joint 6, as shown in fig. 8, the gas outlet joint 6 includes a second gas inlet end 61 and a second gas outlet end 62, and the second gas inlet end 61 is connected to the second gas outlet 42.

As shown in fig. 3, the first built-in waterway includes a first waterway inlet 211 and a first waterway outlet 212; as shown in fig. 6, the second built-in waterway includes a second waterway inlet 411 and a second waterway outlet 412; as shown in fig. 4, the external waterway connection pipe 3 includes a water inlet end 311 and a water outlet end 312, wherein the water inlet end 311 is connected to the first waterway outlet 212, and the water outlet end 312 is connected to the second waterway inlet 411, so as to form an internal water flow path of the gas heater.

As shown in fig. 7, a mounting hole for mounting the thermostat control valve 5 is formed in the valve block 4, a control valve 51 and a thermostat 52 are mounted in the mounting hole, and a plug 53 is formed at an end of the mounting hole to plug the end of the mounting hole.

Specifically, the plug 53 is an inner hexagonal plug.

In this embodiment, the valve block 4 is detachably mounted on the heat exchanger 2, the second gas inlet 41 is located on a side of the valve block 4 facing the heat exchanger 2, the second gas outlet 42 is located at the top of the valve block 4, the second waterway inlet 411 is located on a right side of the valve block 4, and the second waterway outlet 412 is located on a front side of the valve block 4.

The utility model provides a gas heater working process as follows:

in the use process of the gas heater, filtered gas enters a first built-in gas path of the heat exchanger 2 through the gas inlet joint 1, the filtered gas enters a second built-in gas path of the valve block 4 after coming out of the first built-in gas path of the heat exchanger 2, and the filtered gas passes through a temperature sensing bulb of the thermostat control valve 5, then comes out of the second built-in gas path of the valve block 4 and then enters a combustion system of an engine. In the process, water enters the first built-in water path of the heat exchanger 2 for heat exchange, enters the valve block 4 after being connected with the pipe fitting 3 through the external water path, and flows out after passing through the second built-in water path of the valve block 4. When the gas temperature sensed by the bulb of the thermostat control valve 5 is not within the predetermined temperature range, the water flow into the second built-in waterway of the valve block 4 is controlled so that the water flowing through the heat exchanger 2 just heats the gas to the predetermined temperature. Wherein the predetermined temperature is preferably 35 degrees, and the heat exchanger 2 is preferably a plate heat exchanger.

Wherein, the gas heater's gas flow direction is: the gas after decompression and filtration enters a first gas inlet 21 of a heat exchanger 2 through an air inlet connector 1, enters a second gas inlet 41 of a valve block 4 from a first gas outlet 22 after being heated by the heat exchanger 2, flows for a certain distance, changes the direction of a passage, flows to a second gas outlet 42 of the valve block 4, flows out through an air outlet connector 6, and is input into an engine.

The water flow direction of the gas heater is as follows: water enters the heat exchanger 2 from the first waterway inlet 211 on the left side of the heat exchanger 2 for heat exchange, flows out from the first waterway outlet 212 on the right side of the heat exchanger 2 after the heat exchange is finished, simultaneously enters the external waterway connecting pipeline 3 through the water inlet end 311 corresponding to the first waterway outlet 212, flows into the second waterway inlet 411 of the valve block 4 from the water outlet end 312, and flows out from the second waterway outlet 412 and then is gathered into a cooling water system of the engine.

In the above scheme, the gas heater may be used for fuel heating of a gas engine, and specifically may heat natural gas or other gases, and the heated gas has a stable temperature range; the utility model integrates the valve block, the heat exchanger and the thermostat control valve, has small volume and high quality, and is beneficial to centralized production; the built-in gas circuit of the valve block is formed by communicating holes instead of specific pipelines, and pipelines do not need to be arranged between the heat exchanger and the valve block, so that the modularized installation is realized, the installation efficiency is improved, and meanwhile, the hidden danger of gas leakage is eliminated.

The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A gas heater comprises a heat exchanger, and is characterized in that the heat exchanger is provided with a first built-in gas circuit and a first built-in water circuit, a valve block is arranged on the heat exchanger, and the valve block is provided with a second built-in gas circuit and a second built-in water circuit;

the first built-in gas path is communicated with the second built-in gas path, and the first built-in water path is communicated with the second built-in water path through an external water path connecting pipeline;

a thermostat control valve is arranged in the second built-in water path, and a temperature sensing bulb of the thermostat control valve is arranged in the second built-in air path and on one side of the thermostat control valve.

2. The gas heater of claim 1, wherein the first built-in gas circuit comprises a first gas inlet and a first gas outlet, and the second built-in gas circuit comprises a second gas inlet and a second gas outlet, wherein the first gas outlet is in communication with the second gas inlet.

3. The gas heater of claim 2, wherein the first gas inlet is provided with a gas inlet connection, the gas inlet connection comprising a first gas inlet end and a first gas outlet end, the first gas outlet end being connected to the first gas inlet.

4. The gas heater of claim 2, wherein the second gas outlet is provided with a gas outlet connection, the gas outlet connection comprising a second gas inlet end and a second gas outlet end, the second gas inlet end being connected to the second gas outlet.

5. The gas heater of claim 1, wherein the first internal waterway comprises a first waterway inlet and a first waterway outlet, the second internal waterway comprises a second waterway inlet and a second waterway outlet, and the external waterway connection tube comprises a water inlet end and a water outlet end, wherein the water inlet end is connected to the first waterway outlet, and the water outlet end is connected to the second waterway inlet.

6. The gas heater of claim 1, wherein the valve block has a mounting hole for mounting the thermostat control valve therein, the control valve and the thermostat are mounted in the mounting hole, and a plug is disposed at an end of the mounting hole.

7. A gas heater according to any one of claims 1 to 6, wherein the valve block is removably mounted on the heat exchanger.