CN208333169U - A kind of NG heater - Google Patents

Abstract

This application discloses a kind of NG heaters, including cylinder, the axial direction of the cylinder is located at vertical direction, the upper and lower ends of cylinder are sealed with upper cover and lower head respectively, lower head is supported by multiple supports, the bottom end of support is formed with bolt mounting holes, cylinder has a heat transfer space, heat-exchanger rig is provided in heat transfer space, the upper and lower ends of heat-exchanger rig have been respectively communicated with NG outlet and NG inlet tube, NG outlet and NG inlet tube convexedly stretch in the outside of cylinder respectively, blow-down pipe is extended in cylinder, the top of blow-down pipe extends the top of heat transfer space, the bottom end of blow-down pipe extends outside cylinder, recirculated water outlet pipe and recirculated water inlet pipe are respectively arranged on upper cover and lower head, recirculated water outlet pipe and recirculated water inlet pipe are respectively communicated in heat transfer space, it is equipped with cyclic water tank between recirculated water outlet pipe and recirculated water inlet pipe and follows Ring water pump.The utility model heater structure is simple, easy for installation, convenient for safeguarding.

Description

A kind of NG heater

Technical field

This application involves gas-fired equipment technical fields, more particularly to a kind of NG heater.

Background technique

CNG, that is, compressed natural gas (Compressed Natural Gas, abbreviation CNG) is that natural gas is pressurizeed and stored up with gaseous state It deposits in a reservoir.Compressed natural gas can also manually manufacture biology other than it can use the natural gas in oil field and gas field Biogas (main component is methane).Compressed natural gas is identical as the constituent of pipe natural gas, and main component is methane (CH₄).CNG can be used to make LNG (Liquefied Natural Gas, i.e. liquefied natural gas), this using CNG as fuel Vehicle be called NGV (NaturalGas Vehicle).

Need to carry out fuel gas pipeline in heat exchanger heat exchange heating before gas pressure-reducing, traditional heat exchanger usually has knot Structure is complicated, installs inconvenient technical problem.

Utility model content

The purpose of this utility model is to provide a kind of NG heaters, to overcome deficiency in the prior art.

To achieve the above object, the utility model provides the following technical solutions:

The embodiment of the present application discloses a kind of NG heater, including cylinder, and the axial direction of the cylinder is located at vertical direction, the cylinder The upper and lower ends of body are sealed with upper cover and lower head respectively, and the lower head is supported by multiple supports, the bottom end of the support Bolt mounting holes are formed with, the cylinder has a heat transfer space, is provided with heat-exchanger rig, the heat exchange in the heat transfer space The upper and lower ends of device have been respectively communicated with NG outlet and NG inlet tube, and the NG outlet and NG inlet tube convexedly stretch in institute respectively The outside of cylinder to be stated, blow-down pipe is extended in the cylinder, the top of the blow-down pipe extends the top of the heat transfer space, The bottom end of the blow-down pipe extends outside the cylinder, be respectively arranged on the upper cover and lower head recirculated water outlet pipe and Recirculated water inlet pipe, the recirculated water outlet pipe and recirculated water inlet pipe are respectively communicated in the heat transfer space, the recirculated water outlet pipe and Cyclic water tank and water circulating pump are equipped between recirculated water inlet pipe.

Preferably, in above-mentioned NG heater, the bottom end of the blow-down pipe is provided with ball valve.

Preferably, in above-mentioned NG heater, the blow-down pipe extends along the inner wall of the cylinder, and top extends In the recessed space of the upper cover.

Preferably, it in above-mentioned NG heater, is fixed between the blow-down pipe and the inner wall of cylinder by connecting plate.

Preferably, in above-mentioned NG heater, lifting lug is fixed on the upper cover.

Preferably, in above-mentioned NG heater, safety valve is provided on the upper cover.

Preferably, in above-mentioned NG heater, it is communicated with a sewage pipe on the recirculated water inlet pipe, is set on the sewage pipe It is equipped with blowdown valve.

Preferably, in above-mentioned NG heater, the NG inlet tube is sealed on the cylinder lateral wall by pipe cap.

Compared with the prior art, the advantages of the utility model are: the utility model heater structure is simple, it is easy for installation, just In maintenance.

Detailed description of the invention

In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or will show below There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this The some embodiments recorded in application, for those of ordinary skill in the art, without creative efforts, It is also possible to obtain other drawings based on these drawings.

Fig. 1 show the structural schematic diagram of NG heater in the utility model specific embodiment.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Detailed description, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole implementation Example.Based on the embodiments of the present invention, those of ordinary skill in the art institute without making creative work The every other embodiment obtained, fall within the protection scope of the utility model.

As shown in connection with fig. 1, NG heater, including cylinder 1, the axial direction of the cylinder 1 are located at vertical direction, cylinder 1 up and down Both ends are sealed with upper cover 2 and lower head 3 respectively, and lower head 3 is supported by multiple supports 4, and the bottom end of support 4 is formed with bolt peace Hole is filled, cylinder 1 has a heat transfer space, is provided with heat-exchanger rig 5 in heat transfer space, the upper and lower ends of heat-exchanger rig 5 connect respectively It is connected with NG outlet 7 and NG inlet tube 8, NG outlet 7 and NG inlet tube 8 convexedly stretch in the outside of cylinder 1 respectively, prolong in cylinder 1 Stretching has blow-down pipe 9, and the top of blow-down pipe 9 extends the top of heat transfer space, and the bottom end of blow-down pipe 9 extends outside cylinder 1, on Recirculated water outlet pipe 10 and recirculated water inlet pipe 11, recirculated water outlet pipe 10 and recirculated water inlet pipe are respectively arranged on end socket 2 and lower head 3 11 are respectively communicated between heat transfer space, recirculated water outlet pipe 10 and recirculated water inlet pipe 11 equipped with cyclic water tank and water circulating pump.

Further, the bottom end of blow-down pipe 9 is provided with ball valve 12.

Further, blow-down pipe 9 extends along the inner wall of cylinder 1, and top extends in the recessed space of upper cover 2.

Further, fixed by connecting plate 13 between blow-down pipe 9 and the inner wall of cylinder 1.

Further, lifting lug 14 is fixed on upper cover 2.

Further, safety valve 15 is provided on upper cover 2.

Further, it is communicated with a sewage pipe 16 on recirculated water inlet pipe 11, is provided with blowdown valve 17 on the sewage pipe 16.

Further, NG inlet tube is sealed on 1 side wall of cylinder by pipe cap 18.

It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that There is also other identical elements in process, method, article or equipment including the element.

The above is only the specific embodiment of the application, it is noted that for the ordinary skill people of the art For member, under the premise of not departing from the application principle, several improvements and modifications can also be made, these improvements and modifications are also answered It is considered as the protection scope of the application.

Claims (7)

1. a kind of NG heater, which is characterized in that including cylinder, the axial direction of the cylinder is located at vertical direction, the cylinder it is upper Lower both ends are sealed with upper cover and lower head respectively, and the lower head is supported by multiple supports, and the bottom end of the support is formed with Bolt mounting holes, the cylinder have a heat transfer space, are provided with heat-exchanger rig in the heat transfer space, the heat-exchanger rig Upper and lower ends have been respectively communicated with NG outlet and NG inlet tube, and the NG outlet and NG inlet tube convexedly stretch in the cylinder respectively Outside, be extended with blow-down pipe in the cylinder, the top of the blow-down pipe extends the top of the heat transfer space, described to put The bottom end of blank pipe extends outside the cylinder, and recirculated water outlet pipe and recirculated water are respectively arranged on the upper cover and lower head Inlet pipe, the recirculated water outlet pipe and recirculated water inlet pipe are respectively communicated in the heat transfer space, the recirculated water outlet pipe and recirculated water It is equipped with cyclic water tank and water circulating pump between inlet pipe, is communicated with a sewage pipe on the recirculated water inlet pipe, is arranged on the sewage pipe There is blowdown valve.

2. NG heater according to claim 1, it is characterised in that: the bottom end of the blow-down pipe is provided with ball valve.

3. NG heater according to claim 1, it is characterised in that: the blow-down pipe extends along the inner wall of the cylinder, Its top extends in the recessed space of the upper cover.

4. NG heater according to claim 3, it is characterised in that: pass through company between the blow-down pipe and the inner wall of cylinder Fishplate bar is fixed.

5. NG heater according to claim 1, it is characterised in that: be fixed with lifting lug on the upper cover.

6. NG heater according to claim 1, it is characterised in that: be provided with safety valve on the upper cover.

7. NG heater according to claim 1, it is characterised in that: the NG inlet tube is sealed in the cylinder by pipe cap On body sidewall.