Steam boiler for wellhead steam injection

Abstract

The utility model discloses a steam boiler for wellhead steam injection, and relates to the technical field of steam boilers. Comprising a furnace body, a heating furnace is installed in the furnace body, the top end of the heating furnace fixedly communicates with a smoke outlet pipe, the smoke outlet pipe penetrates through one side of the furnace body, and a recycling mechanism is arranged on one side of the furnace body and comprises a cleaning box fixed to one side of the furnace body; and a heat storage box is fixed on one side of the furnace body. Compared with the prior art, the heating furnace is used for heating water in the furnace body, smoke in the heating furnace is discharged through the smoke outlet pipe in the heating process and then enters the cleaning box to be cleaned, impurities in the smoke are filtered through the filter screen, and clean gas enters the heat storage box through the connecting pipe in the filtering process, so that the heat storage effect is improved. And in the flowing process, heat in the gas is absorbed by the heat storage bricks and is transmitted to the spiral water inlet pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of steam boilers, in particular to a steam boiler for wellhead steam injection. Background Art

[0002] Oil wells will encounter some challenges during the exploitation process, such as high oil viscosity and poor fluidity. Wellhead steam injection technology can reduce oil viscosity and improve oil fluidity by injecting high-temperature and high-pressure steam into the oil well, thereby increasing the output of the oil well. The steam boiler for wellhead steam injection provides the required high-temperature and high-pressure steam and is the key equipment for realizing wellhead steam injection technology; the existing steam boiler for wellhead steam injection (Announcement No.: CN219674187U) has the following disadvantages in use:

[0003] During use, the heat of the furnace acts on the water in the water chamber, and then the smoke generated during the combustion process is discharged through the smoke exhaust pipe. However, there may be a certain amount of heat in the smoke during the process of discharging the smoke, resulting in heat being wasted. For this reason, this patent proposes a steam boiler for wellhead steam injection to solve the above problem. Utility Model Content

[0004] The utility model aims to provide a steam boiler for wellhead steam injection to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a steam boiler for wellhead steam injection comprises a furnace body, a heating furnace is installed inside the furnace body, a smoke outlet pipe is fixedly connected to the top of the heating furnace, the smoke outlet pipe runs through one side of the furnace body, a recovery mechanism is arranged on one side of the furnace body, the recovery mechanism comprises a cleaning box fixed to one side of the furnace body, a filter screen is inserted in the cleaning box, a mounting plate is fixed to one end of the filter screen, a heat storage box is fixed to one side of the furnace body, a connecting pipe is fixedly connected between the top of the heat storage box and the bottom of the cleaning box, heat storage bricks are inserted in the heat storage box, a spiral water inlet pipe is installed in the heat storage box, the spiral water inlet pipe is fixedly connected to the furnace body, the heat storage bricks are located on the outside of the spiral water inlet pipe, and a spiral circulation groove is provided on the inner wall of the heat storage box.

[0006] A cleaning mechanism is provided on one side of the cleaning box, and the cleaning mechanism includes a fixed plate fixed on one side of the cleaning box, one end of the fixed plate is rotatably connected to a turntable, the other end of the fixed plate is fixed to a first motor, the output end of the first motor passes through the fixed plate and is fixed to the turntable, one end of the turntable is fixed to a connecting rod, one end of the connecting rod is rotatably connected to a push rod, one end of the push rod is rotatably connected to a moving rod, the moving rod slides in the cleaning box, the bottom end of the moving rod is fixed to a supporting rod, and the bottom end of the supporting rod is fixed to a cleaning plate.

[0007] A connecting piece is fixed between the inner walls on both sides of the cleaning box, and the moving rod is slidably connected in the connecting piece.

[0008] The inner wall at the top end of the furnace body is rotatably connected to two rotating rods, and an auger is fixed on the outer wall of the rotating rod.

[0009] The tops of the two rotating rods passing through the furnace body are fixed with rotating wheels, a belt is arranged between the two rotating wheels, a mounting frame is fixed to the top of the furnace body, a second motor is fixed to the top of the mounting frame, and the output end of the second motor passes through the mounting frame and is fixed to the top of one of the rotating wheels.

[0010] A controller is installed on the other side of the furnace body, and the controller is electrically connected to the first motor and the second motor.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The difference between the steam boiler for wellhead steam injection and the prior art is that the water in the furnace body is heated by a heating furnace. During the heating process, the flue gas in the heating furnace is discharged through a smoke outlet pipe and then enters a cleaning box for cleaning. Impurities in the flue gas are filtered through a filter. During the filtering process, the clean gas enters the heat storage box through a connecting pipe and flows in a spiral flow groove. During the flow, the heat in the gas is absorbed by the heat storage bricks and transferred to the spiral water inlet pipe, so that the heat of the discharged flue gas can be recovered to avoid heat waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 It is the first cross-sectional view of the utility model;

[0015] Figure 3 It is a second cross-sectional view of the utility model;

[0016] Figure 4 It is the third cross-sectional view of the present utility model.

[0017] In the figure: 1. furnace body; 2. recovery mechanism; 201. cleaning box; 202. mounting plate; 203. heat storage box; 204. filter screen; 205. spiral flow slot; 206. heat storage brick; 207. spiral water inlet pipe; 3. cleaning mechanism; 301. fixing plate; 302. turntable; 303. connecting rod; 304. push rod; 305. moving rod; 306. connecting piece; 307. cleaning plate; 4. heating furnace; 5. smoke outlet pipe; 6. rotating rod; 7. auger. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] Steam boilers are needed during the exploitation of oil wells. The steam boiler provided by the utility model is specially used in the exploitation of oil wells. By injecting high-temperature and high-pressure steam into the oil wells, the viscosity of the oil can be reduced, the fluidity of the oil can be improved, and the output of the oil wells can be increased. In the process of using this equipment, it is necessary to ensure in advance that the first motor and the second motor can work normally, so as to ensure the normal operation of the equipment.

[0020] like Figure 1-Figure 4 As shown, the utility model provides a technical solution: a steam boiler for wellhead steam injection, comprising a furnace body 1, a heating furnace 4 is installed inside the furnace body 1, a smoke outlet pipe 5 is fixedly connected to the top of the heating furnace 4, the smoke outlet pipe 5 runs through one side of the furnace body 1, a recovery mechanism 2 is arranged on one side of the furnace body 1, the recovery mechanism 2 comprises a cleaning box 201 fixed to one side of the furnace body 1, a filter screen 204 is inserted in the cleaning box 201, and collection boxes are fixed on both sides of the filter screen 204, and the filter screen 204 is fixed with a collection box. 4 is fixed with a mounting plate 202, a heat storage box 203 is fixed with one side of the furnace body 1, a connecting pipe is fixedly connected between the top of the heat storage box 203 and the bottom of the cleaning box 201, a heat storage brick 206 is inserted into the heat storage box 203, a spiral water inlet pipe 207 is installed in the heat storage box 203, the spiral water inlet pipe 207 is fixedly connected with the furnace body 1, the heat storage brick 206 is located on the outside of the spiral water inlet pipe 207, and a spiral flow groove 205 is opened on the inner wall of the heat storage box 203.

[0021] It should be noted that the water in the furnace body 1 is heated by the heating furnace 4. During the heating process, the flue gas in the heating furnace 4 is discharged through the smoke outlet pipe 5, and then enters the cleaning box 201 for cleaning. The impurities in the flue gas are filtered through the filter 204. During the filtering process, the clean gas enters the heat storage box 203 through the connecting pipe and flows in the spiral circulation groove 205. During the flow process, the heat in the gas is absorbed by the heat storage bricks 206 and transferred to the spiral water inlet pipe 207, so that the heat of the exhausted flue gas can be recovered.

[0022] like Figure 2As shown, a cleaning mechanism 3 is provided on one side of the cleaning box 201, and the cleaning mechanism 3 includes a fixed plate 301 fixed on one side of the cleaning box 201, one end of the fixed plate 301 is rotatably connected to a turntable 302, the other end of the fixed plate 301 is fixed to a first motor, the output end of the first motor passes through the fixed plate 301 and is fixed to the turntable 302, a connecting rod 303 is fixed to one end of the turntable 302, one end of the connecting rod 303 is rotatably connected to a push rod 304, one end of the push rod 304 is rotatably connected to a moving rod 305, the moving rod 305 slides in the cleaning box 201, the bottom end of the moving rod 305 is fixed to a support rod, and the bottom end of the support rod is fixed to a cleaning plate 307. A connecting piece 306 is fixed between the inner walls of both sides of the cleaning box 201, and the moving rod 305 is slidably connected in the connecting piece 306.

[0023] It should be noted that the turntable 302 is driven to rotate by the first motor, the rotation of the turntable 302 drives the connecting rod 303 to rotate, the rotation of the connecting rod 303 drives the push rod 304 to move, and the push rod 304 drives the moving rod 305 to move left and right, so that the cleaning plate 307 can move to push the filtered dust into the collection boxes on both sides of the filter screen 204, so as to prevent the dust from clogging the filter screen 204 and affecting the filtering efficiency.

[0024] like Figure 1 and Figure 4 As shown, the inner wall of the top of the furnace body 1 is rotatably connected to two rotating rods 6, and the outer wall of the rotating rod 6 is fixed with an auger 7. The tops of the two rotating rods 6 are fixed with rotating wheels after passing through the furnace body 1, and a belt is arranged between the two rotating wheels. The top of the furnace body 1 is fixed with a mounting frame, and the top of the mounting frame is fixed with a second motor. The output end of the second motor passes through the mounting frame and is fixed to the top of one of the rotating wheels. A controller is installed on the other side of the furnace body 1, and the controller is electrically connected to the first motor and the second motor.

[0025] It should be noted that one of the wheels is driven to rotate by the second motor, and one of the wheels drives the belt to move, thereby causing the other wheel to rotate. In this way, both rotating rods 6 rotate, driving the auger 7 to rotate so that the water in the furnace body 1 is stirred, so that the water in the furnace body 1 can be heated more evenly and the heating efficiency is improved.

[0026] Working principle: In the process of heating the water in the furnace body 1, the heating furnace 4 heats the water in the furnace body 1. In the heating process, the flue gas in the heating furnace 4 is discharged through the smoke outlet pipe 5, and then enters the cleaning box 201 for cleaning. The impurities in the flue gas are filtered through the filter 204. In the filtering process, the clean gas enters the heat storage box 203 through the connecting pipe and flows in the spiral flow groove 205. In the flow process, the heat in the gas is absorbed by the heat storage bricks 206 and transferred to the spiral water inlet pipe 207, so that the heat of the exhausted flue gas can be recovered.

[0027] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is limited by the attached embodiments and their equivalents.

Claims

1. A steam boiler for wellhead steam injection, comprising a furnace body (1), characterized in that: A heating furnace (4) is installed inside the furnace body (1), a smoke outlet pipe (5) is fixedly connected to the top of the heating furnace (4), the smoke outlet pipe (5) passes through one side of the furnace body (1), a recovery mechanism (2) is arranged on one side of the furnace body (1), the recovery mechanism (2) comprises a cleaning box (201) fixed to one side of the furnace body (1), a filter screen (204) is inserted into the cleaning box (201), a mounting plate (202) is fixed at one end of the filter screen (204), and a filter screen (204) is fixed on one side of the furnace body (1). A heat storage box (203) is provided, a connecting pipe is fixedly connected between the top end of the heat storage box (203) and the bottom end of the cleaning box (201), a heat storage brick (206) is inserted into the heat storage box (203), a spiral water inlet pipe (207) is installed in the heat storage box (203), the spiral water inlet pipe (207) is fixedly connected to the furnace body (1), the heat storage brick (206) is located outside the spiral water inlet pipe (207), and a spiral circulation groove (205) is opened on the inner wall of the heat storage box (203).

2. The steam boiler for wellhead steam injection according to claim 1, characterized in that: A cleaning mechanism (3) is provided on one side of the cleaning box (201), and the cleaning mechanism (3) comprises a fixing plate (301) fixed on one side of the cleaning box (201), one end of the fixing plate (301) is rotatably connected to a rotating disk (302), the other end of the fixing plate (301) is fixed to a first motor, the output end of the first motor passes through the fixing plate (301) and is fixed to the rotating disk (302), one end of the rotating disk (302) is fixed to a connecting rod (303), one end of the connecting rod (303) is rotatably connected to a push rod (304), one end of the push rod (304) is rotatably connected to a moving rod (305), the moving rod (305) slides in the cleaning box (201), the bottom end of the moving rod (305) is fixed to a supporting rod, and the bottom end of the supporting rod is fixed to a cleaning plate (307).

3. The steam boiler for wellhead steam injection according to claim 1, characterized in that: A connecting piece (306) is fixed between the inner walls on both sides of the cleaning box (201), and the moving rod (305) is slidably connected in the connecting piece (306).

4. The steam boiler for wellhead steam injection according to claim 1, characterized in that: The inner wall at the top end of the furnace body (1) is rotatably connected to two rotating rods (6), and an auger (7) is fixed to the outer wall of the rotating rods (6).

5. The steam boiler for wellhead steam injection according to claim 4, characterized in that: The top ends of the two rotating rods (6) passing through the furnace body (1) are both fixed with rotating wheels, a belt is arranged between the two rotating wheels, a mounting frame is fixed to the top end of the furnace body (1), a second motor is fixed to the top end of the mounting frame, and the output end of the second motor passes through the mounting frame and is fixed to the top end of one of the rotating wheels.

6. The steam boiler for wellhead steam injection according to claim 1, characterized in that: A controller is installed on the other side of the furnace body (1), and the controller is electrically connected to the first motor and the second motor.

Images