Ground circulating single-supply heating device for double hollow sucker rods

Abstract

The utility model discloses a ground circulating single-supply heating device for double hollow sucker rods, which is characterized in that a burner is arranged in a heating bin, the tail end of the burner is connected with a multi-stage flue, the multi-stage flue is connected end to end in the heating bin, and the tail end of the multi-stage flue is connected with a smoke exhaust pipe; a heat exchange pipe is arranged around each flue, and the heat exchange pipes are connected into a whole end to end and extend to the outer side of the heating bin to form a water inlet and a water outlet. Tail gas is connected in the heating bin in a turn-back mode through the multiple stages of flues, the heat exchange area is increased at the maximum efficiency, heat energy conversion is achieved at the maximum efficiency by winding the heat exchange pipe on each stage of flue to make direct contact with a heat source, a heat exchange area is fully provided for combustion tail gas through the multiple stages of flues, and the heat exchange efficiency is effectively improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of heat exchangers, and in particular relates to a double hollow sucker rod ground circulation single-supply heating device. Background Art

[0002] In the existing double-hollow oil pumping equipment, the basic structure of its heating device is to connect the burner to the heating chamber, heat the water in the heating chamber through the burner, and then drain the water in the heating chamber to achieve heat exchange. This heat exchange method is fast and direct, but it has many disadvantages, which are specifically reflected in: 1. The heat exchange efficiency is poor. The exhaust gas at the end of the burner contains a large amount of heat and is discharged as exhaust gas, causing air pollution and energy waste; 2. The heat exchange tube is set in the heat-conducting liquid. During heat exchange, the heat needs to be conducted into the liquid first, and then the heat is conducted to the outside through the heat exchange tube, which reduces the heat exchange efficiency.

[0003] Therefore, in order to solve the above problems existing in the existing technology, as a research and development design unit in the field of heat exchangers, the technical problem that urgently needs to be solved is: to design a high-efficiency heat exchanger with a new structure, which can achieve more direct heat exchange and can convert as much heat in the heat exchanger as possible, so as to improve the heat exchange efficiency. Utility Model Content

[0004] In view of the shortcomings of the existing technology mentioned above, the utility model proposes a double hollow sucker rod ground circulation single supply heating device, which, by designing an internal heat exchanger and multiple groups of heat exchange tubes, can directly wrap the flue through the heat exchange tubes for direct heat conduction, and circulate the high-temperature exhaust gas from the combustion through multiple sections of the flue, thereby achieving high-temperature conversion.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A double hollow sucker rod ground circulation single supply heating device, which includes a heating chamber, a burner is provided in the heating chamber, the end of the burner is connected to a multi-stage flue, the multi-stage flue is connected end to end in the heating chamber, and the end of the multi-stage flue is connected to a smoke exhaust pipe; a heat exchange tube is provided around each flue, the heat exchange tubes are connected end to end and extend to the outside of the heating chamber to form a water inlet and a water outlet.

[0007] The outer wall of the heating chamber is provided with a plurality of heater fixing holes for fixing the heater.

[0008] There are three multi-stage flues, namely flue I, flue II and flue III. The three flues and the burner form a quadrilateral structure. The end of the burner is connected to the head end of flue I through the first horizontal heat conduction chamber, the end of flue I is connected to the head end of flue II through the vertical heat conduction chamber, the end of flue II is connected to flue III through the second horizontal heat conduction chamber, and the end of flue III is provided with a terminal smoke collecting chamber, which is connected to the exhaust pipe to realize the exhaust of exhaust gas.

[0009] The utility model has the following beneficial effects: a burner is arranged in the heating chamber, the end of the burner is connected to a multi-stage flue, and the multi-stage flue is connected end to end in the heating chamber, and the end of the multi-stage flue is connected to a smoke exhaust pipe; a heat exchange pipe is arranged around each flue, and the heat exchange pipes are connected end to end into one and extend to the outside of the heating chamber to form a water inlet and a water outlet.

[0010] The utility model connects the exhaust gas through a multi-stage flue in a heating chamber, thereby increasing the heat exchange area with maximum efficiency, and then directly contacts the heat source by winding a heat exchange tube on each stage of the flue, realizing heat energy conversion with maximum efficiency. By setting up a multi-stage flue, a sufficient heat exchange area is provided for the combustion exhaust gas, effectively improving the heat exchange efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0012] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the top view of the structure of the utility model;

[0014] Figure 3 This is a schematic diagram of the main internal structure of the utility model;

[0015] Figure 4 This is a side view of the internal structure of the utility model;

[0016] In the figure, 1. heating chamber, 2. burner, 3. first horizontal heat transfer chamber, 4. vertical heat transfer chamber, 5. second horizontal heat transfer chamber, 6. flue I, 7. flue II, 8. flue III, 9. heat exchange tube, 91. water inlet, 92. water outlet, 62. heat exchange coil III, 10. exhaust pipe, 11. terminal smoke collecting chamber, 12. heater fixing hole. DETAILED DESCRIPTION

[0017] The present invention is further described below through specific implementation methods. The following description is only for illustrative purposes. Those skilled in the art can make further structural improvements based on the following description. The scope of protection of this patent shall be based on the scope recorded in the claims.

[0018] Example 1:

[0019] A double hollow sucker rod ground circulation single supply heating device, as shown in the accompanying drawings, includes a square and closed heating chamber 1, wherein the heating chamber 1 stores heat-conducting liquid; a burner 2 is provided in the heating chamber 1, and the end of the burner 2 is connected to a multi-stage flue. In this embodiment, a three-stage flue is arranged, and the three-stage flue includes flue I6, flue II7, and flue III8. The flue I6, flue II7, and flue III8 are connected end to end in the heating chamber 1, and the end of the flue III8 is connected to the exhaust pipe 10.

[0020] Furthermore, the utility model forms a quadrilateral structure with three flues and the burner 2. The end of the burner 2 is connected to the head end of the flue I6 through the first horizontal heat conduction chamber 3, the end of the flue I6 is connected to the head end of the flue II7 through the vertical heat conduction chamber 4, and the end of the flue II7 is connected to the flue III8 through the second horizontal heat conduction chamber 5. The end of the flue III8 is provided with a terminal smoke collecting chamber 11, and the terminal smoke collecting chamber 11 is connected to the exhaust pipe 10 to realize the discharge of exhaust gas.

[0021] By arranging multiple flues to bend back in the heating chamber 1, the high heat in the high-temperature flue gas can be converted to the external liquid and other heat exchange components as much as possible.

[0022] To further improve heat exchange efficiency, the present invention provides heat exchange tubes 9 surrounding flue 16, flue 27, and flue 38. The heat exchange tubes 9 surrounding flue 16, flue 27, and flue 38 are connected end to end and extend to the outside of the heating chamber 1 to form a water inlet 91 and a water outlet 92. These water inlet 91 and the water outlet 92 connect to external heat-using equipment or units. After the above structure is set up, the heat exchange tubes 9 are directly attached to the flue, ensuring full contact with the flue, which can maximize the efficiency of heat conversion from the flue to the outside.

[0023] Furthermore, as an auxiliary heating method, when the present invention is in use, if the external heat demand is too large and the heat exchange efficiency inside the heating chamber 1 cannot meet the heat demand, the device heating method can also be expanded, such as Figure 1 As shown, a plurality of heater fixing holes 12 are provided on the outer wall of the heating chamber 1. The heater fixing holes 12 are used to fix the heater. Such heater may be an electric heater, and auxiliary heating is achieved through the electric heater.

[0024] In summary, the utility model connects the exhaust gas back and forth in the heating chamber 1 through a multi-stage flue, thereby increasing the heat exchange area with maximum efficiency, and then directly contacts the heat source by winding a heat exchange tube 9 on each stage of the flue, thereby realizing heat energy conversion with maximum efficiency. By setting up a multi-stage flue, the combustion exhaust gas is fully provided with a heat exchange area, thereby effectively improving the heat exchange efficiency.

Claims

1. A double hollow sucker rod ground circulation single supply heating device, comprising a heating chamber, characterized in that: A burner is provided in the heating chamber, the end of the burner is connected to a multi-stage flue, the multi-stage flue is connected end to end in the heating chamber, and the end of the multi-stage flue is connected to a smoke exhaust pipe; a heat exchange pipe is provided around each flue, and the heat exchange pipe is connected end to end and extends to the outside of the heating chamber to form a water inlet and outlet.

2. A double hollow sucker rod ground circulation single supply heating device according to claim 1, characterized in that: A plurality of heater fixing holes are provided on the outer wall of the heating chamber for fixing the heater.

3. The double hollow sucker rod ground circulation single supply heating device according to claim 1, characterized in that: There are three multi-stage flues, namely flue I, flue II and flue III. The three flues and the burner form a quadrilateral structure. The end of the burner is connected to the head end of flue I through the first horizontal heat conduction chamber, the end of flue I is connected to the head end of flue II through the vertical heat conduction chamber, the end of flue II is connected to flue III through the second horizontal heat conduction chamber, and the end of flue III is provided with a terminal smoke collecting chamber, which is connected to the exhaust pipe to realize the exhaust of exhaust gas.

Images