Heat storage and supply device for oil field

Abstract

The utility model discloses a heat storage and supply device for an oil field. The heat storage and supply device comprises a box body, a heat storage body, an electric heater, an anti-blocking heat exchanger, a first circulating pump, a second circulating pump, a heat supply pipeline, a circulating pipeline, a first temperature probe and a second temperature probe, a controller is arranged outside the box body; the heat accumulator, the electric heater, the anti-blocking heat exchanger and the first circulating pump are sequentially connected end to end through the circulating pipeline, the heat supply pipeline is connected with the anti-blocking heat exchanger, and the second circulating pump is arranged on the heat supply pipeline; the first temperature probe is arranged in the heat accumulator, the second temperature probe is arranged at an outlet of the electric heater, the first temperature probe and the second temperature probe are in signal connection with the controller, and the controller is in signal connection with the electric heater, the first circulating pump and the second circulating pump. The heat storage and supply device for the oil field can effectively utilize cheap energy sources such as wind / light electricity, valley electricity, waste heat and the like of the oil field.

Description

Technical Field

[0001] The utility model relates to the technical field of heat storage and heating, in particular to a heat storage and heating device for oil fields. Background Art

[0002] At present, a large number of wind / solar power plants are installed in the oil field area. In some oil field stations, the exhaust temperature of gas furnaces can reach 200 degrees, and the exhaust heat loss is large. Geographically, they are often far away from the heat users, and it is difficult for users to use these energy sources. However, there is currently no device that enables users to effectively utilize the cheap energy of the oil field. Therefore, it is necessary to propose a heat storage heating device for oil fields to solve the above problems. Utility Model Content

[0003] The purpose of the utility model is to provide a heat storage and heating device for oil fields in view of the shortcomings of the prior art, so as to solve the problem that there is currently no device that can enable users to effectively utilize cheap energy such as wind / photovoltaic, valley electricity, and waste heat in oil fields.

[0004] The utility model provides a heat storage and heating device for oil fields, comprising: a box body and a heat storage body, an electric heater, an anti-blocking heat exchanger, a first circulation pump, a second circulation pump, a heating pipeline, a circulation pipeline, a first temperature probe and a second temperature probe arranged in the box body; a controller is arranged outside the box body; the heat storage body, the electric heater, the anti-blocking heat exchanger and the first circulation pump are connected end to end in sequence through the circulation pipeline, the heating pipeline is connected to the anti-blocking heat exchanger, and the second circulation pump is arranged on the heating pipeline; the first temperature probe is arranged in the heat storage body, the second temperature probe is arranged at the outlet of the electric heater, the first temperature probe and the second temperature probe are respectively connected to the controller signal, and the controller is respectively connected to the electric heater, the first circulation pump and the second circulation pump signal.

[0005] Furthermore, the box body is assembled by using color steel sandwich panels with a thermal insulation layer.

[0006] Furthermore, a maintenance door is provided at one end of the box.

[0007] Furthermore, a heating pipe interface is provided below the side of the box body, and the heating pipe is connected to the heating pipe interface.

[0008] Furthermore, the heat storage body includes a heat preservation container, and a heat exchange tube and a phase change material are arranged in the heat preservation container.

[0009] The utility model has the following beneficial effects: The utility model provides a heat storage and heating device for oil fields, which can use a variety of different forms of energy for the heat storage process. The entire box can be installed in combination with a mobile flatbed truck to realize a mobile application mode, which is flexible and convenient to use and realizes a flexible connection between energy and the user end. During the heat release process, it can be used as an independent heat source or auxiliary heat source on the user side. An anti-blocking heat exchanger is used, and the oily wastewater exchanges heat with the ethylene glycol water solution circulating medium through this heat exchanger. External user pipelines, as well as control panel operations, are flexible and convenient to use. The heat storage body uses phase change materials as heat storage and heat release media. Phase change materials use inorganic composite materials, which are low in cost, high in heat storage density, and small in size. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0011] Figure 1 This is a schematic diagram of a heat storage and heating device for oil fields of the utility model;

[0012] Figure 2 It is an external structural diagram of a heat storage and heating device for oil fields of the utility model.

[0013] Illustration: 1-heat storage body; 2-electric heater; 3-anti-blocking heat exchanger; 4-first circulation pump; 5-second circulation pump; 6-heating pipe; 7-circulation pipeline; 8-tank; 9-controller; 10-heating pipe interface; 11-maintenance door. DETAILED DESCRIPTION

[0014] It should be noted that, in the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments. It should be noted that the following detailed descriptions are all illustrative and are intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those of ordinary skill in the art to which the present application belongs.

[0015] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0016] Now, exemplary embodiments according to the present application will be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in a variety of different forms and should not be interpreted as being limited to the embodiments described herein. It should be understood that these embodiments are provided to make the disclosure of the present application thorough and complete, and to fully convey the concepts of these exemplary embodiments to those of ordinary skill in the art. In the accompanying drawings, for clarity, the thickness of the layers and regions is enlarged, and the same reference numerals are used to represent the same devices, so their description will be omitted.

[0017] See also Figure 1 to Figure 2 The embodiment of the utility model provides a heat storage and heating device for oil fields, including: a box body 8 and a heat storage body 1, an electric heater 2, an anti-blocking heat exchanger 3, a first circulation pump 4, a second circulation pump 5, a heating pipeline 6, a circulation pipeline 7, a first temperature probe and a second temperature probe arranged in the box body 8; a controller 9 is arranged outside the box body 8, and a control panel installation position of the controller 9 is reserved on the outer facade of the box body, and a rainproof and dustproof cover is provided. The entire box body can be combined with a mobile flatbed vehicle to realize a movable application mode, which is flexible and convenient to use.

[0018] The box body 8 is assembled with a color steel sandwich panel with an insulation layer, and a maintenance door 11 is provided at one end of the box body 8. A heating pipe interface 10 is provided below the side of the box body 8, and the heating pipe 6 is connected to the heating pipe interface 10, and the heating pipe 6 is used to connect the user side pipe.

[0019] The heat storage body 1 , the electric heater 2 , the anti-blocking heat exchanger 3 , and the first circulation pump 4 are connected end to end in sequence through the circulation pipeline 7 , the heating pipeline 6 is connected to the anti-blocking heat exchanger 3 , and the second circulation pump 5 is arranged on the heating pipeline 6 .

[0020] The heat storage body 1 includes a heat preservation container, in which a heat exchange tube and a phase change material are arranged. The heat storage body uses a phase change material as a heat storage and heat release medium. The phase change material uses an inorganic composite material, which has low cost, high heat storage density and small volume. The first temperature probe is arranged in the heat storage body 1 to determine whether the heat storage and heat release process is completed.

[0021] The function of the electric heater 2 is to use electric energy to generate heat energy, and provide heat energy for the heat storage body 1. However, the electric heater only uses cheap electric energy, such as wind / photovoltaic, or valley electricity. The second temperature probe is set at the outlet of the electric heater 2 to prevent the circulating medium temperature from being too high.

[0022] The function of the anti-blocking heat exchanger 3 is that it can heat the oil-containing process medium without causing corrosion and scaling problems, and does not require cleaning and maintenance.

[0023] The first temperature probe and the second temperature probe are respectively connected to the controller 9 by signal, and the controller 9 is respectively connected to the electric heater 2, the first circulation pump 4 and the second circulation pump 5 by signal. The controller 9 can be used to control the start and stop of the first circulation pump 4 and the second circulation pump 5, as well as the electric heater 2. The control panel of the controller 9 is embedded on the outer facade of the box, which is convenient for operation and maintenance personnel to operate and use.

[0024] The working process of a heat storage and heating device for oil fields provided by the embodiment of the utility model is as follows:

[0025] The process of using electric heater to charge heat: When the connection between wind / photovoltaic or valley electricity and electric boiler is ready, first, the first temperature probe detects the temperature T1 of the heat storage body. When T1 < the set upper limit temperature, the first circulation pump 4 and the electric heater 2 are started, and the second circulation pump 5 stops running. The heat energy generated by the electric heater 2 is transferred to the ethylene glycol aqueous solution circulation medium and transported to the heat storage body 1. Then, the heat energy is transferred and stored in the phase change material through the heat exchange tube in the heat storage body 1. When T1 = the set temperature, the electric heater 2 stops working and the heat storage process ends. When the water outlet temperature T2 of the electric heater 2 detected by the second temperature probe = the set upper limit temperature, the electric heater 2 stops running.

[0026] Reheating process using waste heat: When the flue gas waste heat recovery system and the oil field heat storage heating device are ready for connection, first, the first temperature probe detects the temperature T1 of the heat storage body. When T1 < the set upper limit temperature, the first circulation pump 4 and the second circulation pump 5 are started, and the electric heater 2 stops running. The flue gas waste heat is first transferred to the ethylene glycol aqueous solution circulation medium through the anti-blocking heat exchanger 3, and is transported to the heat storage body 1, and then the heat energy is transferred and stored in the phase change material through the heat exchange pipe in the heat storage body 1. When T1 = the set temperature, the first circulation pump 4 and the second circulation pump 5 stop working, and the heat storage process ends.

[0027] Heat release process: First, the first temperature probe detects the temperature T1 of the heat storage body. When T1> the set lower limit temperature, the first circulation pump 4 and the second circulation pump 5 are started, and the heat energy stored in the heat storage body 1 is transported to the anti-blocking heat exchanger 3 through the ethylene glycol aqueous solution circulation medium, and then the heat energy is released to the user side for use. When T1=the set lower limit temperature, the first circulation pump 4 and the second circulation pump 5 stop running, and the heat release process ends.

[0028] It should be pointed out that the thermal storage and heating device for oil fields of the utility model mainly focuses on the structural features and functional improvements of the device, and its physical structure is the basis for realizing specific functions. The workflow mentioned in the specification is mainly used to explain and illustrate how the device realizes its functions through its specific physical structure during operation. The description of these processes is only a tool to assist in understanding the working principle of the device. The scope of protection of the utility model is clearly limited to the structural features and functional improvements of the device, including but not limited to its physical composition, component configuration, and the functional effects directly produced by these physical structures.

[0029] The embodiment of the utility model provides a heat storage and heating device for oil fields, which can use wind / photovoltaic energy to produce thermal energy, store the thermal energy in the thermal storage device, and release the thermal energy on the user side that needs heat. Thermal energy can be produced by using electricity during off-peak hours, stored in the thermal storage device, and released on the user side that needs heat. In this way, electricity consumption during peak and flat hours can be avoided or reduced, and the cost of electricity production can be greatly reduced by utilizing the price difference of electricity. By adding a flue gas heat recovery heat exchanger to the gas boiler at the oil field station and connecting it in combination with the thermal storage device, the waste heat of the flue gas can be recovered and stored in the thermal storage device, and the thermal energy can be released on the user side that needs heat, so that the heat-using customers can use cheap thermal energy. Due to its movable characteristics, the utility model can store and transport the above-mentioned energy to the user side, realizing a flexible connection between the energy and the user side.

[0030] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0031] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example.

[0032] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A heat storage and heating device for oil fields, characterized in that: include: A box (8), and a heat storage body (1), an electric heater (2), an anti-blocking heat exchanger (3), a first circulation pump (4), a second circulation pump (5), a heating pipe (6), a circulation pipeline (7), a first temperature probe, and a second temperature probe arranged in the box (8); a controller (9) is arranged outside the box (8); The heat storage body (1), the electric heater (2), the anti-blocking heat exchanger (3), and the first circulation pump (4) are connected end to end in sequence through a circulation pipeline (7); the heating pipeline (6) is connected to the anti-blocking heat exchanger (3); and the second circulation pump (5) is arranged on the heating pipeline (6); the first temperature probe is arranged in the heat storage body (1), and the second temperature probe is arranged at the outlet of the electric heater (2); the first temperature probe and the second temperature probe are respectively connected to a controller (9) for signal transmission; and the controller (9) is respectively connected to the electric heater (2), the first circulation pump (4), and the second circulation pump (5) for signal transmission.

2. The heat storage and heating device for oil fields according to claim 1, characterized in that: The box body (8) is assembled from color steel sandwich panels with a thermal insulation layer.

3. The heat storage and heating device for oil fields according to claim 1, characterized in that: A maintenance door (11) is provided at one end of the box body (8).

4. The heat storage and heating device for oil fields according to claim 1, characterized in that: A heating pipe interface (10) is provided at the lower side of the box body (8), and the heating pipe (6) is connected to the heating pipe interface (10).

5. The heat storage and heating device for oil fields according to claim 1, characterized in that: The heat storage body (1) comprises a heat-insulating container, in which a heat exchange tube and a phase change material are arranged.

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