A geothermal constant temperature dry evaporator
By reheating the gas from the circulating evaporator outlet and using the constant temperature control box and geothermal collector assembly, the problem of dry shell and tube evaporator being difficult to maintain a constant temperature when the temperature changes are large, achieving more efficient heat exchange efficiency and temperature stability.
Patent Information
- Application Number
- CN202211317847.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-10-26
- Publication Date
- 2025-04-22
- Estimated Expiration
- 2042-10-26
AI Technical Summary
The existing dry shell and tube evaporators are difficult to maintain a constant temperature when the temperature changes greatly, resulting in a short circuit of the refrigerant and a decrease in refrigerant capacity.
The gases circulating the outlet of the evaporator are reheated and the constant temperature control box and geothermal collector assembly are used to ensure that the airflow reaches a stable temperature, thereby improving heat exchange efficiency and temperature stability.
The stable heating of the air flow is achieved, the heat exchange efficiency of the dry evaporator is improved, and the temperature is constant for a long time is ensured, avoiding the problems of short circuit of the refrigerant and the reduction of the refrigerant capacity.
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Figure CN115615053B_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of geothermal constant temperature dry evaporators, and in particular relates to a geothermal constant temperature dry evaporator. Background Art
[0002] In a dry shell and tube evaporator, liquid refrigerant enters the tube from the end cover at one end of the evaporator after throttling. A partition is cast on the end cover. After the refrigerant evaporates through two or more processes and absorbs the heat of the refrigerant, it comes out from the same end cover and enters the compressor. If the end cover partition gasket leaks, the refrigerant will short-circuit, causing liquid return and reduced refrigeration capacity. Dry shell and tube evaporators are generally made of copper tubes, which can be plain tubes or inner fin tubes with longitudinal fins. The temperature changes greatly, resulting in the inability to maintain a constant temperature for a long time. Summary of the invention
[0003] In view of the above technical problems, the present invention provides a geothermal constant temperature dry evaporator, which can improve the heat exchange efficiency by circulating the gas at the outlet of the evaporator, reheating it and then extracting it, while ensuring that geothermal energy is applied to the dry evaporator, and the constant temperature box can ensure the temperature stability.
[0004] The technical solution is as follows: a geothermal constant temperature dry evaporator, comprising a dry evaporator main body, the air inlet end flange of the dry evaporator main body is connected to an evaporator inlet pipe, characterized in that the other end of the evaporator inlet pipe is connected to a constant temperature control box assembly, a temperature detection tube assembly is installed on the inner side of the constant temperature control box assembly, an air intake fan is arranged on the lower left part of the temperature detection tube assembly, an automatic controller is fixed on the upper part of the constant temperature control box assembly, the inlet of the air intake fan is connected to a geothermal collector assembly, and the outlet of the dry evaporator main body is flange-connected to a return pipe.
[0005] Preferably, the constant temperature control box assembly includes an insulating outer shell, the inner side of the insulating outer shell is bolted with a partition plate, the inner lower side of the insulating outer shell is bolted with an electric heating tube, the upper left side of the insulating outer shell is embedded with a small fan, and the upper part of the small fan is screwed with an air intake hood.
[0006] Preferably, the temperature detection tube assembly comprises a connecting pipe, a preheating aluminum plate is welded on the outer side of the connecting pipe, and temperature sensors are threadedly connected on the left and right sides of the inside of the connecting pipe.
[0007] Preferably, the geothermal collector assembly includes an outer insulation shell, an insulation baffle is embedded in the middle of the inner side of the outer insulation shell, an air inlet pipe is plugged into the left side of the inner part of the outer insulation shell, an air outlet pipe is plugged into the right side of the inner part of the outer insulation shell, and a heating water tank is arranged at the lower part of the outer insulation shell.
[0008] Preferably, the left side of the evaporator inlet pipe is bolted to the lower right portion of the heat-insulating shell, and the inner side of the evaporator inlet pipe is connected to the inner lower portion of the heat-insulating shell.
[0009] Preferably, the electric heating tube is arranged at the lower part of the partition partition, and a through hole is arranged on the inner left side of the partition partition.
[0010] Preferably, the automatic controller is bolted to the upper right side of the heat-insulating shell, and the inner lower part of the small fan is connected to the inner upper left part of the heat-insulating shell.
[0011] Compared with the prior art, the present invention has the following beneficial effects:
[0012] 1. In the present invention, the arrangement of the heat-insulating shell, partition baffles, electric heating tubes, small fans and air intake hoods is conducive to the external airflow reaching the specified temperature quickly after preheating, so that the heating temperature can be output stably.
[0013] 2. In the present invention, the arrangement of the connecting pipe, the preheating aluminum plate and the temperature sensor is conducive to automatically adjusting the temperature in coordination with the electric heating tube and the automatic controller, and compensation can be performed when the temperature is lower than the set value.
[0014] 3. In the present invention, the arrangement of the outer insulation shell, insulation baffle, air inlet pipe, air outlet pipe and heating water tank is conducive to collecting geothermal energy and sending the collected heating steam into the dry evaporator body for use. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a structural schematic diagram of the present invention.
[0016] Figure 2 It is a structural schematic diagram of the constant temperature control box assembly of the present invention.
[0017] Figure 3 It is a structural schematic diagram of the temperature detection tube assembly of the present invention.
[0018] Figure 4 It is a structural schematic diagram of the geothermal collector assembly of the present invention.
[0019] In the figure:
[0020] 1. Dry evaporator body; 2. Evaporator inlet pipe; 3. Constant temperature control box assembly; 31. Insulation shell; 32. Partition partition; 33. Electric heating pipe; 34. Small fan; 35. Inlet hood; 4. Temperature detection tube assembly; 41. Connecting pipe; 42. Preheating aluminum plate; 43. Temperature sensor; 5. Intake fan; 6. Automatic controller; 7. Geothermal collector assembly; 71. Outer insulation shell; 72. Insulation partition; 73. Inlet pipe; 74. Outlet pipe; 75. Heating water tank; 8. Return pipe. DETAILED DESCRIPTION
[0021] The present invention is further described below in conjunction with the accompanying drawings:
[0022] Example:
[0023] As attached Figure 1 As shown, a geothermal constant temperature dry evaporator comprises a dry evaporator body 1, an air inlet end flange of the dry evaporator body 1 is connected to an evaporator inlet pipe 2, and is characterized in that the other end of the evaporator inlet pipe 2 is connected to a constant temperature control box assembly 3, a temperature detection tube assembly 4 is installed on the inner side of the constant temperature control box assembly 3, an air intake fan 5 is arranged on the lower left part of the temperature detection tube assembly 4, an automatic controller 6 is fixed on the upper part of the constant temperature control box assembly 3, a geothermal collector assembly 7 is connected to the inlet of the air intake fan 5, and a return pipe 8 is flange-connected to the outlet of the dry evaporator body 1.
[0024] In the above embodiment, specifically, the connecting pipe 41 is embedded in the upper left part of the inner side of the heat-insulating outer shell 31, and the connecting pipe 41 is located on the upper part of the partition partition 32 to preheat the temperature of the compensation airflow and increase the heating speed.
[0025] In the above embodiment, specifically, a plurality of temperature sensors 43 are provided, and the temperature sensor 43 is threadedly connected to the left inner side of the evaporator inlet pipe 2 .
[0026] In the above embodiment, specifically, the left side of the connecting duct 41 is connected to the air outlet of the air intake fan 5 , and the lower right portion of the connecting duct 41 extends to the lower portion of the partition plate 32 .
[0027] In the above embodiment, specifically, the air inlet pipe 73 is located on the left side of the thermal insulation baffle 72 , and the air outlet pipe 74 is located on the right side of the thermal insulation baffle 72 .
[0028] In the above embodiment, specifically, the lower portion of the air inlet pipe 73 extends to the inner lower portion of the heating water tank 75 , and the air outlet pipe 74 extends to the inner upper portion of the heating water tank 75 .
[0029] In the above embodiment, specifically, the upper portion of the air outlet duct 74 is communicated with the air inlet of the air suction fan 5 , and the left side of the return duct 8 is communicated with the upper portion of the air intake duct 73 .
[0030] How it works
[0031] The working principle of the present invention is as follows: the heating steam inside the heating water tank 75 flows upward through the exhaust pipe 74, the suction fan 5 sucks the hot air through the pipe, and then sends the gas to the inner side of the heat-insulating shell 31 through the connecting pipe 41, the connecting pipe 41 stores part of the heat in the upper part of the heat-insulating shell 31 through the preheating aluminum plate 42, and the temperature sensor 43 detects the temperature. When the temperature on the left side of the evaporator inlet pipe 2 is lower than the set value, the automatic controller 6 will control the electric heating pipe 33 and the small fan 34 to operate at the same time, and the airflow enters through the air intake hood 35. After secondary heating by the electric heating pipe 33, it is mixed with the steam temperature to make it reach the preset temperature. Then the airflow inside the heat-insulating shell 31 enters the inner side of the dry evaporator main body 1 through the evaporator inlet pipe 2, and the gas inside the dry evaporator main body 1 flows back to the inner side of the air intake pipe 73 through the reflux pipe 8, and finally enters the inner side of the heating water tank 75 for heating, forming a cycle.
[0032] Utilizing the technical solution described in the present invention, or those skilled in the art designing a similar technical solution inspired by the technical solution of the present invention to achieve the above-mentioned technical effects, all fall within the protection scope of the present invention.
Claims
1. A geothermal constant temperature dry evaporator, comprising a dry evaporator body (1), wherein an air inlet flange of the dry evaporator body (1) is connected to an evaporator inlet pipe (2), characterized in that: The other end of the evaporator inlet pipe (2) is connected to a thermostatic control box assembly (3), a temperature detection tube assembly (4) is installed inside the thermostatic control box assembly (3), an air intake fan (5) is arranged at the lower left part of the temperature detection tube assembly (4), an automatic controller (6) is fixed on the upper part of the thermostatic control box assembly (3), a geothermal collector assembly (7) is connected to the inlet of the air intake fan (5), and a return pipe (8) is flange-connected to the outlet of the dry evaporator body (1); the thermostatic control box assembly (3) comprises a heat-insulating shell (31), a partition partition (32) is bolted to the inner side of the heat-insulating shell (31), an electric heating tube (33) is bolted to the inner lower part of the heat-insulating shell (31), a small fan (34) is embedded on the upper left side of the heat-insulating shell (31), and an air intake hood (35) is screwed to the upper part of the small fan (34).
2. The geothermal constant temperature dry evaporator according to claim 1, characterized in that: The temperature detection tube assembly (4) comprises a connecting pipe (41), the outer side of which is welded with a preheating aluminum plate (42), and the inside of the connecting pipe (41) is threadedly connected with temperature sensors (43) on both left and right sides thereof.
3. The geothermal constant temperature dry evaporator according to claim 1, characterized in that: The geothermal collector assembly (7) comprises an outer insulation shell (71), a heat-insulating baffle (72) is embedded in the middle of the inner side of the outer insulation shell (71), an air inlet pipe (73) is plugged into the left side of the inner side of the outer insulation shell (71), an air outlet pipe (74) is plugged into the right side of the inner side of the outer insulation shell (71), and a heating water tank (75) is arranged at the lower part of the outer insulation shell (71).
4. The geothermal constant temperature dry evaporator according to claim 1, characterized in that: The left side of the evaporator inlet pipe (2) is bolted to the lower right part of the heat-insulating shell (31), and the inner side of the evaporator inlet pipe (2) is connected to the inner lower part of the heat-insulating shell (31).
5. The geothermal constant temperature dry evaporator according to claim 1, characterized in that: The electric heating tube (33) is arranged at the lower part of the partition plate (32), and a through hole is arranged on the left side inside the partition plate (32).
6. The geothermal constant temperature dry evaporator according to claim 1, characterized in that: The automatic controller (6) is bolted to the upper right side of the heat-insulating shell (31), and the inner lower part of the small fan (34) is connected to the inner upper left part of the heat-insulating shell (31).
Citation Information
Patent Citations
Low-temperature heat-preservation type dry evaporator and control method thereof
CN104390394A
Dry type evaporator with heater
CN204345975U