CN213271564U - Device for increasing heat of natural gas by using air source heat pump system - Google Patents

Abstract

The utility model discloses an utilize air source heat pump system to carry out natural gas device that heats, including evaporimeter and shell-and-tube heat exchanger, be equipped with the low temperature heat exchange tube on the evaporimeter, be equipped with the high temperature heat exchange tube on the shell-and-tube heat exchanger, the low temperature heat exchange tube with it has first connecting pipe and second connecting pipe to communicate respectively between the high temperature heat exchange tube, be equipped with the compressor on the first connecting pipe, be equipped with liquid storage pot, filter and expansion valve on the second connecting pipe respectively, be equipped with natural gas pipeline on the shell-and-tube heat exchanger, the left side of evaporimeter is equipped with the fan, the utility model discloses a heat medium can't be effectively absorbed by the low-grade heat energy that utilizes in with the air to promote it to available high-grade heat energy, through the heat exchange of.

Description

Device for increasing heat of natural gas by using air source heat pump system

Technical Field

The utility model relates to a gas engineering technical field, the concrete field is an utilize air source heat pump system to carry out natural gas and heat up device.

Background

The natural gas is heated to meet subsequent pressure regulation operation in the transmission process of the natural gas, the method for heating the natural gas commonly used in the current engineering can utilize an explosion-proof electric heater, heat media in a shell pass of a heat exchanger are heated through an electric heating pipe, then the natural gas in a tube pass is heated through the heat media, or a hot water circulating heat exchanger is utilized, an external gas boiler is arranged, hot water is produced through the boiler, then the hot water flows away from the shell pass of the heat exchanger, the natural gas in the tube pass is heated, the purpose of heating the natural gas is achieved through consuming electric energy or gas in the two modes, the electric energy and the gas are high-grade high-quality energy sources, the natural gas heating mode causes energy waste, in addition, additional facilities such as a boiler room and the like are required to be built in the mode of heating the hot water produced by the boiler, and the investment.

Disclosure of Invention

An object of the utility model is to provide an utilize air source heat pump system to carry out natural gas and heat up device to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an utilize air source heat pump system to carry out natural gas and add device of heat, includes evaporimeter and shell and tube type heat exchanger, be equipped with the low temperature heat exchange tube on the evaporimeter, be equipped with the high temperature heat exchange tube on the shell and tube type heat exchanger, the low temperature heat exchange tube with it has first connecting pipe and second connecting pipe to communicate respectively between the high temperature heat exchange tube, be equipped with the compressor on the first connecting pipe, be equipped with liquid storage pot, filter and expansion valve on the second connecting pipe respectively, be equipped with the natural gas pipeline on the shell and tube type heat exchanger, the left.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model provides an utilize air source heat pump system to carry out natural gas and add device of heat, the heat medium absorbs heat energy from ambient air through the evaporimeter of air source heat pump, and then the heat medium is through releasing heat to the water in the shell and tube type heat exchanger, the natural gas in the natural gas pipeline in the shell and tube type heat exchanger of water heating, this kind of mode utilizes contrary carnot cycle principle, adopt the electric drive, can't be effectively absorbed by the low-grade heat energy that utilizes in the air through the heat medium, and promote it to usable high-grade heat energy, under different ambient temperature, this system is every consumes 1KW electric energy, can absorb 2-5 KW's free heat in the air, compare in the electric heating pipe directly to water heating, heat conversion efficiency is higher, energy-saving effect is considerable, compared in boiler production hot water saved the space.

Drawings

Fig. 1 is a schematic view of the main structure of the present invention.

In the figure: the system comprises an evaporator 1, a shell-and-tube heat exchanger 2, a low-temperature heat exchange tube 3, a high-temperature heat exchange tube 4, a first connecting tube 5, a second connecting tube 6, a compressor 7, a liquid storage tank 8, a filter 9, an expansion valve 10, a natural gas pipeline 11 and a fan 12.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1, the present invention provides a technical solution: a device for increasing the heat of natural gas by using an air source heat pump system comprises an evaporator 1 and a shell-and-tube heat exchanger 2, wherein a low-temperature heat exchange tube 3 is arranged on the evaporator, a high-temperature heat exchange tube 4 is arranged on the shell-and-tube heat exchanger, a first connecting tube 5 and a second connecting tube 6 are respectively communicated between the low-temperature heat exchange tube and the high-temperature heat exchange tube, the low-temperature heat exchange tube, the high-temperature heat exchange tube, the first connecting tube and the second connecting tube are communicated to form a closed circulating pipeline, a heat medium is filled in the circulating pipeline, heat media such as R22, R410a, R407C, R134a and the like can be adopted, valve ports are arranged on the first connecting tube and the second connecting tube and are used for adding the heat medium into the circulating pipeline or discharging the heat medium from the circulating pipeline, in the heat increasing process, the heat medium flows in the circulating pipeline and is not communicated with the outside, and, the evaporator and the shell-and-tube heat exchanger are placed in an external environment, the low-temperature heat exchange tube is fixed on the evaporator, the evaporator is used for supporting and fixing the low-temperature heat exchange tube, the evaporator is permeable from left to right, air blown out by a fan can penetrate through the evaporator to accelerate air flow near the evaporator, meanwhile, the bent shape of the low-temperature heat exchange tube increases the heat exchange area and improves the heat exchange efficiency of the evaporator part, water contained in the shell-and-tube heat exchanger is used for heat exchange, the high-temperature heat exchange tube is arranged in the shell-and-tube heat exchanger, two ports of the high-temperature heat exchange tube penetrate through the side wall of the shell-and-tube heat exchanger and are communicated with a first connecting tube and a second connecting tube, the water contained in the shell-and-tube heat exchanger is contacted with the outer side wall of the high-temperature heat exchange tube, the heat medium in the first connecting pipe enters the compressor from one end and flows out from the other end after being processed by the compressor, the heat medium flows into the high-temperature heat exchange pipe from the low-temperature heat exchange pipe through the first connecting pipe, the compressor pressurizes the heat medium passing through, so that the low-pressure heat medium flowing out of the low-temperature heat exchange pipe is changed into the high-pressure heat medium and flows into the high-temperature heat exchange pipe, the second connecting pipe is respectively provided with a liquid storage tank 8, a filter 9 and an expansion valve 10, the liquid storage tank, the filter and the expansion valve are communicated with the second connecting pipe, the heat medium in the second connecting pipe enters the liquid storage tank, the filter and the expansion valve from one end and flows out from the other end after being processed by the liquid storage tank, the heat medium can be changed into a liquid state after releasing heat through the high-temperature heat medium, the buffering effect is achieved through the liquid storage tank, the filtering effect is achieved through, the heat medium absorbs the external heat in the low-temperature heat exchange tube, is pressurized by the compressor, releases the heat in the high-temperature heat exchange tube, is decompressed by the expansion valve and enters the low-temperature heat exchange tube again, the heat released in the high-temperature heat exchange tube is absorbed by the water in the shell-and-tube heat exchanger to raise the temperature of the water, the shell-and-tube heat exchanger is provided with a natural gas pipeline 11, the natural gas pipeline is arranged in the shell-and-tube heat exchanger, two ends of the natural gas pipeline penetrate through the side wall of the shell-and-tube heat exchanger to be communicated with an external natural gas inlet pipe and an external natural gas outlet pipe, the contact area between the natural gas pipeline and water in the shell-and-tube heat exchanger is increased due to the bent shape of the natural gas pipeline, the heat exchange efficiency is improved, the natural gas pipeline is communicated with an external pipeline, natural gas circulating in the natural gas pipeline is discharged into the, a fan 12 is arranged on the left side of the evaporator, and the electrical equipment is powered by external equipment.

The working principle is as follows: the low-temperature low-pressure gaseous heat medium absorbs heat in the low-temperature heat exchange tube, flows into the first connecting tube, is compressed by the compressor to become high-temperature high-pressure gaseous heat medium, the high-temperature high-pressure gaseous heat medium flows into the high-temperature heat exchange tube to release heat, the heat is released to water in the shell-and-tube heat exchanger to increase the temperature of the water in the shell-and-tube heat exchanger, the temperature of the heat medium flowing out of the high-temperature heat exchange tube is reduced to become low-temperature liquid heat medium, then the heat medium is buffered by the liquid storage tank, filtered by the filter and throttled by the expansion valve to become low-temperature low-pressure gaseous heat medium, the low-temperature low-pressure gaseous heat medium enters the low-temperature heat exchange tube to exchange heat with external air under the action of the fan, absorbs heat energy from the air, then enters the compressor to repeatedly and, the natural gas pipeline is communicated with external equipment to guide natural gas meeting heat requirements into the external equipment.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (1)

1. The utility model provides an utilize air source heat pump system to carry out natural gas and add hot device, includes evaporimeter (1) and shell and tube type heat exchanger (2), its characterized in that: be equipped with low temperature heat exchange tube (3) on evaporimeter (1), be equipped with high temperature heat exchange tube (4) on shell and tube heat exchanger (2), low temperature heat exchange tube (3) with communicate respectively between high temperature heat exchange tube (4) and have first connecting pipe (5) and second connecting pipe (6), be equipped with compressor (7) on first connecting pipe (5), be equipped with liquid storage pot (8), filter (9) and expansion valve (10) on second connecting pipe (6) respectively, be equipped with natural gas pipeline (11) on shell and tube heat exchanger (2), the left side of evaporimeter (1) is equipped with fan (12).

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