CN201914625U - Oilfield oil storage tank crude oil heating device capable of utilizing engine exhaust pipe waste gas - Google Patents

Abstract

The utility model discloses a heating device for crude oil of an oil storage tank in an oil field using engine exhaust pipe exhaust gas, which includes a gas generator set, a heat exchange device and an oil storage tank, and is characterized in that: the inner cavity of the heat exchange device includes an upper vacuum negative The pressure working chamber and the lower heat exchange chamber are filled with superconducting medium; the exhaust pipe of the gas generator set is connected to the heat exchange chamber; the vacuum negative pressure working chamber is provided with a circulation pipe, Both the inlet end and the outlet end of the circulation pipe are connected to the oil storage tank, wherein an oil pump is installed at the inlet end or the outlet end. The utility model not only solves the problem of exhaust gas exhausted by the gas generating set and wastes heat energy, but also uses the high-temperature gas in the exhaust pipe as the heat source to replace the traditional open flame heating furnace, which is energy-saving, environmentally friendly, safe and efficient.

Description

Oil field oil storage tank crude oil utilization engine exhaust pipe exhaust gas heating device

technical field

The utility model relates to the technical field of crude oil heating, in particular to a heating device for exhaust gas from an engine exhaust pipe for crude oil in an oil storage tank in an oil field.

Background technique

In oilfield production in the north, especially in winter, the viscosity of crude oil in storage tanks increases at lower temperatures and fluidity decreases, making transportation difficult and affecting normal work. In order not to affect the normal work, it is necessary to heat the crude oil stored in the oil storage tank to reduce its viscosity and improve fluidity. Therefore, a heating device must be installed on the oil storage tank. At present, most of the heating devices used by oil fields to heat crude oil in oil storage tanks are heating furnaces with open flames, which not only consume a lot of energy, but also cause environmental pollution due to the smoke emitted after fuel combustion. What is even more worrisome is that there are serious safety hazards in the use of open flame heating furnaces in oil fields. A little carelessness will cause open flame leakage, and in severe cases, an explosion will occur. On the other hand, the oil field uses a gas generator set to generate electricity for the pumping unit. The temperature of the exhaust gas discharged from the exhaust pipe of the gas generator set is very high, and a large amount of heat energy is wasted in vain.

Contents of the invention

The technical problem to be solved by the utility model is to overcome the above-mentioned defects, and provide an energy-saving, environment-friendly, safe and efficient oil field oil storage tank crude oil utilization engine exhaust pipe exhaust gas heating device.

In order to solve the above problems, the technical solution adopted in the utility model is:

An oil field oil storage tank crude oil heating device using engine exhaust pipe exhaust gas, including a gas generator set, a heat exchange device and an oil storage tank, characterized in that: the inner chamber of the heat exchange device includes an upper vacuum negative pressure working chamber and a lower part The heat exchange chamber is filled with superconducting medium; the exhaust pipe of the gas generator set is connected to the heat exchange chamber; the vacuum negative pressure working chamber is provided with a circulation pipe, and the inlet end of the circulation pipe Both the outlet and the outlet are connected to the oil storage tank, wherein an oil pump is installed at the inlet or outlet.

Further on:

The periphery of the part of the exhaust pipe outside the heat exchange device is wrapped with an insulating layer.

A number of auxiliary heating pipes are evenly distributed around the periphery of the part of the exhaust pipe inside the heat exchange device.

The crude oil heating system also includes an intelligent control device, a temperature sensor is arranged in the oil storage tank, and the temperature sensor is connected with the intelligent control device.

The utility model uses the waste gas discharged from the exhaust pipe of the gas generating set as a heat source, and since the surface temperature of the exhaust pipe of the gas generating set can reach 400°C to 600°C, the heat exchange device makes full use of the surface temperature of the exhaust pipe to provide superconducting The medium is heated, and under the action of vacuum negative pressure and gravity, the superconducting medium exchanges heat with the crude oil in the circulation tube, and the heat exchange efficiency can reach more than 90%. Therefore, the utility model not only solves the problem of wasting heat energy due to the waste gas exhausted by the gas generator set, but also uses the high-temperature gas in the exhaust pipe as the heat source to replace the traditional open flame heating furnace, which is energy-saving, environmentally friendly, safe and efficient.

Below in conjunction with accompanying drawing and specific embodiment, the utility model is further described.

Description of drawings

Fig. 1 is the structural representation of a kind of embodiment of the utility model;

Fig. 2 is a schematic diagram of the working principle of an embodiment of the utility model.

In the figure: 1-gas generator set; 2-exhaust pipe; 3-insulation layer; 4-superconducting medium; 5-vacuum negative pressure working chamber; 6-circulation pipe; 61-inlet port; - heat exchange device; 8 - oil pump; 9 - oil storage tank; 10 - exhaust port; 11 - auxiliary heating pipe.

Detailed ways

Example:

An oil field oil storage tank crude oil heating device using engine exhaust pipe exhaust gas, as shown in FIG. The inner chamber of the heat exchange device 7 includes an upper vacuum negative pressure working chamber 5 and a lower heat exchange chamber, and the heat exchange chamber is filled with a superconducting medium 4 . The exhaust pipe 2 of the gas generator set 1 is connected into the heat exchange chamber. The vacuum negative pressure working chamber 5 is provided with a circulation pipe 6 , and the inlet end 61 and the outlet end 62 of the circulation pipe 6 are both connected to the oil storage tank 9 , wherein an oil pump 8 is installed at the inlet end 61 . The function of the oil pump 8 is to enable the crude oil in the oil storage tank 9 to circulate continuously into the circulation pipe 6 for heating. Therefore, the oil pump 8 can also be installed at the outlet port 62 .

In order to reduce the loss of heat energy in the exhaust pipe 2 as much as possible, an insulating layer 3 is wrapped around the part of the exhaust pipe 2 outside the heat exchange device 7 .

Several auxiliary heating pipes 11 are evenly distributed around the periphery of the part of the exhaust pipe 2 inside the heat exchange device 7 . The role of the auxiliary heating pipe 11: when the heat power converted from the heat energy discharged from the exhaust pipe 2 fails to meet the requirements, the auxiliary heating pipe 11 can provide heat energy to ensure the heat power required for heating the crude oil.

Said crude oil heating system also includes an intelligent control device, a temperature sensor is arranged in the oil storage tank 9, and the temperature sensor is connected with the intelligent control device. The predetermined temperature of crude oil heating can be set by the intelligent control device, and is monitored by the temperature sensor in the oil storage tank 9 .

The working principle of the utility model is shown in Figure 2. The waste gas discharged from the exhaust pipe of the gas generator set is used as a heat source, and the heat exchange device makes full use of the surface temperature of the exhaust pipe to heat the superconducting medium. Under the action of the superconducting medium and the crude oil in the circulation pipe for heat exchange, the heat exchange efficiency can reach more than 90%. Taking a 25Kw gas generating set as an example, the utility model can convert the heat energy discharged from the exhaust pipe of the gas generating set into a heat power of more than 10Kw for heating crude oil.

Claims (4)

1. A crude oil storage tank in an oil field utilizes an engine exhaust pipe waste gas heating device, comprising a gas generator set (1), a heat exchange device (7) and an oil storage tank (9), characterized in that: the heat exchange device ( 7) The inner chamber includes the upper vacuum negative pressure working chamber (5) and the lower heat exchange chamber, and the heat exchange chamber is filled with superconducting medium (4); the exhaust pipe (2) of the gas generator set (1) ) into the heat exchange chamber; the vacuum negative pressure working chamber (5) is provided with a circulation pipe (6), and the inlet end (61) and outlet end (62) of the circulation pipe (6) are connected to the oil storage On the tank (9), wherein, an oil pump (8) is installed at the inlet end (61) or the outlet end (62). 2. The oilfield oil storage tank crude oil utilization engine exhaust pipe exhaust gas heating device according to claim 1, characterized in that: the outer part of the exhaust pipe (2) outside the heat exchange device (7) is wrapped with Insulation layer (3). 3. The oil field oil storage tank crude oil utilization engine exhaust pipe exhaust gas heating device according to claim 1, characterized in that: the periphery of the part of the exhaust pipe (2) inside the heat exchange device (7) is evenly distributed Several auxiliary heating pipes (11) are arranged. 4. The oil field oil storage tank crude oil utilization engine exhaust pipe exhaust gas heating device according to claim 1, characterized in that: the crude oil heating system also includes an intelligent control device, and the oil storage tank (9) is equipped with a temperature sensor The temperature sensor is connected with the intelligent control device.

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