Fuel gas mold temperature controller with high safety

Abstract

The utility model discloses a fuel gas mold temperature controller with high safety, and relates to the technical field of mold temperature controllers, the fuel gas mold temperature controller comprises a mold temperature controller shell, a delivery pipe, a combustion chamber, a hot oil chamber and a heat recovery box, the top of the heat recovery box is provided with an adsorption pump, the gas inlet end of the adsorption pump is provided with a gas inlet pipe, the gas outlet end of the adsorption pump is provided with a gas outlet pipe; an exhaust hole is formed in the top of the heat recovery box, a branch pipe is fixedly installed on the outer wall of the conveying pipe, and electromagnetic valves are installed at the two ends of the branch pipe. The heat recovery mechanism is installed, media are added into the branch pipe and the hot oil cavity through the oil supply pump, hot air in the combustion cavity is conveyed into the heat recovery box through the air outlet pipe, and the heat conduction media in the branch pipe are heated through the hot air; and the medium heated by the branch pipe is conveniently added when a new medium needs to be added in the hot oil cavity subsequently, so that the subsequent heating time is shortened, meanwhile, heat can be recycled, and energy waste is avoided.

Description

Technical Field

[0001] This utility model relates to the field of mold temperature controller technology, specifically a gas-fired mold temperature controller with high safety. Background Technology

[0002] A gas-fired mold temperature controller is a device that uses gas as a heat source to heat and control the temperature of molds or fluids. Its working principle is based on the heat energy generated by the combustion of gas, which is then used to control the temperature of the mold or fluid through a specific system. Gas-fired mold temperature controllers are mainly used for heating and controlling the temperature of molds or fluids, and are suitable for various industries such as chemical, grease, plastics, textiles, fibers, papermaking and printing, wood, metal, and coating. Especially in the plastic injection molding industry, gas-fired mold temperature controllers achieve precise temperature control of the injection molding process by controlling the temperature of the mold, thereby improving product quality and production efficiency.

[0003] Patent document CN219769037U discloses a gas-fired intelligent mold temperature controller, which includes a mold temperature controller housing, an oil tank on the top of the housing, an oil inlet pipe fixedly connected to the bottom of the oil tank, and a heating cylinder and an oil pump inside the housing. This invention has the following advantages and effects: after the heated heat transfer oil is recovered through the oil outlet pipe, the hot oil will circulate back through the return oil pipe, passing through the interior of the cooling tank where it is cooled by the circulating cooling water. After the initially cooled heat transfer oil is pumped into the return pipe, the return oil cylinder protects its exterior, reducing the rate of temperature change and ensuring safer recovery. Furthermore, when needed, the oil tank and the oil inlet pipe can work together to replenish the heating cylinder with heat transfer oil, preventing insufficient oil from affecting the efficiency of constant temperature operation.

[0004] However, the aforementioned published document on a gas-fired intelligent mold temperature controller mainly considers preventing insufficient oil volume from affecting the efficiency of constant temperature operation and the inconvenience of recovering and utilizing the heat inside the combustion chamber.

[0005] Therefore, it is necessary to develop a heat recovery mechanism that can recover and utilize the heat inside the combustion chamber. Utility Model Content

[0006] The purpose of this utility model is to provide a highly safe gas mold temperature controller to solve the technical problem mentioned in the background art of enabling a highly safe gas mold temperature controller to have a heat recovery function.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a high-safety gas mold temperature controller, comprising: a mold temperature controller housing, an oil supply pump installed on the top of the mold temperature controller housing, a delivery pipe installed at the oil inlet end of the oil supply pump, a combustion chamber installed on the inner wall of the mold temperature controller housing, a hot oil chamber fixedly installed on the inner wall of the combustion chamber, and a heat recovery mechanism provided on the top of the mold temperature controller housing for recovering and utilizing the heat inside the combustion chamber;

[0008] The heat recovery mechanism includes a heat recovery box located on top of the mold temperature controller housing. An adsorption pump is installed on the top of the heat recovery box. An air inlet pipe is installed at the air inlet end of the adsorption pump, and an expansion pipe (fan-shaped) is installed on the outer wall of the air inlet pipe. An air outlet pipe is installed at the air outlet end of the adsorption pump. An exhaust port is provided on the top of the heat recovery box, located on one side of the adsorption pump. A sealing plug is movably installed on the inner wall of the exhaust port. A branch pipe is fixedly installed on the outer wall of the delivery pipe, and the branch pipe communicates with the interior of the delivery pipe. The other end of the branch pipe extends into the interior of the hot oil chamber, and a solenoid valve is installed at both ends of the branch pipe.

[0009] Preferably, a control panel is installed on the front of the mold temperature controller housing, a flange pipe is installed on the top of the mold temperature controller housing, an alarm is installed on the top of the mold temperature controller housing, and the flange pipe is located on one side of the alarm. An oil supply pipe is installed on the outer wall of the hot oil chamber, an oil return pump is installed on the inner wall of the mold temperature controller housing, and a cooling box is installed on the inner wall of the mold temperature controller housing.

[0010] Preferably, one end of the intake pipe extends into the interior of the combustion chamber, and one end of the exhaust pipe extends into the interior of the heat recovery box. Both the intake pipe and the exhaust pipe are made of Teflon PTFE pipe, and the branch pipe is S-shaped to accommodate more heat transfer medium.

[0011] Preferably, the top of the heat recovery box is equipped with a filter safety mechanism, which is used to filter the gas generated by the mold temperature controller to prevent indiscriminate discharge that could pollute the environment.

[0012] Preferably, the filtration safety mechanism includes an electric push rod, which is disposed on the inner wall of the heat recovery tank.

[0013] Preferably, a filter frame is fixedly installed at the output end of the electric push rod, a slide rail is installed on the inner side of the filter frame, a slider is movably installed on the inner wall of the slide rail, the interior of the slide rail is an elongated groove, and the slider is fitted inside the slide rail.

[0014] Preferably, the outer wall of the slider is provided with a threaded groove, the inner wall of the threaded groove is provided with a threaded rod, the outer wall of the threaded rod is equipped with a molecular sieve, a gravity block is fixedly installed at the bottom of the slider, and when the slider is at the extreme position of the slide, the gravity block is in contact with the top of the heat recovery box.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. This utility model utilizes a heat recovery mechanism to recover and reuse the heat inside the combustion chamber. When the combustion chamber burns fuel gas to heat the hot oil chamber, a large amount of heat is generated. This heat is then directly released into the air after use, resulting in energy loss. Therefore, this needs to be improved to recover the heat from the combustion chamber. First, the solenoid valve near the delivery pipe is opened, allowing one end of the branch pipe to flow. The solenoid valve near the hot oil chamber is closed, and the oil pump adds a medium to the branch pipe and the hot oil chamber. Then, the opened solenoid valve is closed, and the adsorption pump operates, transporting the hot gas from the combustion chamber through the inlet pipe and expansion pipe to the heat recovery box via the outlet pipe. The hot gas then heats the heat-conducting medium in the branch pipe. The heated medium in the branch pipe is then easily added to the hot oil chamber when needed, shortening the subsequent heating time. Simultaneously, heat can be recovered and reused, avoiding energy waste. Finally, the gas in the heat recovery box is discharged through the exhaust port.

[0017] 2. This utility model incorporates a filter safety mechanism to filter the gas generated by the mold temperature controller, preventing indiscriminate emissions that could pollute the environment. Existing mold temperature controllers cannot filter the generated gas, leading to indiscriminate emissions and environmental pollution. Therefore, this improvement is necessary. The slider is moved along the slide rail, pulling it out of the filter frame. The molecular sieve is then fixed into the threaded groove by a threaded rod. Pulling the slider out of the filter frame provides rotational space for the molecular sieve installation. The slider is then pushed to bring the gravity block into contact with the top of the heat recovery box. The gravity block's own weight limits the position of the molecular sieve. An electric push rod then moves the filter frame. To facilitate the removal of the sealing plug, the filter frame is then reset. The gas is thus filtered through the molecular sieve, preventing environmental pollution. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a front structural diagram of the present invention;

[0020] Figure 3 This is a schematic diagram of the heat recovery box of this utility model.

[0021] Figure 4 This is a schematic diagram of the filter frame structure of this utility model.

[0022] In the diagram: 1. Mold temperature controller housing; 2. Control panel; 3. Oil supply pump; 4. Flange pipe; 5. Alarm; 6. Combustion chamber; 7. Hot oil chamber; 8. Oil supply pipe; 9. Return oil pump; 10. Cooling box; 11. Delivery pipe; 12. Heat recovery box; 13. Adsorption pump; 14. Inlet pipe; 15. Expansion pipe; 16. Outlet pipe; 17. Exhaust port; 18. Sealing plug; 19. Branch pipe; 20. Solenoid valve; 21. Electric push rod; 22. Filter frame; 23. Slide rail; 24. Slider; 25. Threaded groove; 26. Threaded rod; 27. Molecular sieve; 28. Gravity block. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] Please see Figure 1 and Figure 2A high-safety gas-fired mold temperature controller includes: a mold temperature controller housing 1; an oil supply pump 3 installed on the top of the mold temperature controller housing 1; a delivery pipe 11 installed at the oil inlet end of the oil supply pump 3; a combustion chamber 6 installed on the inner wall of the mold temperature controller housing 1; a hot oil chamber 7 fixedly installed on the inner wall of the combustion chamber 6; a control panel 2 installed on the front of the mold temperature controller housing 1; a flange pipe 4 installed on the top of the mold temperature controller housing 1; an alarm 5 installed on the top of the mold temperature controller housing 1, with the flange pipe 4 located to one side of the alarm 5; an oil supply pipe 8 installed on the outer wall of the hot oil chamber 7; and a return oil pump 9 installed on the inner wall of the mold temperature controller housing 1. A cooling box 10 is installed on the inner wall of the casing 1. First, the flange pipe 4 is used to connect to the external gas supply equipment, and then the gas enters the combustion chamber 6. The oil supply pump 3 works to supply oil (heat transfer medium, such as heat transfer oil) to the hot oil chamber 7 through the delivery pipe 11. The combustion chamber 6 heats the medium in the hot oil chamber 7, and the external equipment mold is heated through the oil supply pipe 8. After completion, the medium needs to be recovered. The medium is recovered through the return oil pump 9 and cooled through the cooling pipe in the cooling box 10, and then returned to the hot oil chamber 7, thus completing the work.

[0027] Please see Figure 2 and Figure 3The top of the mold temperature controller housing 1 is equipped with a heat recovery mechanism for recovering and utilizing the heat inside the combustion chamber 6. The heat recovery mechanism includes a heat recovery box 12, which is located on the top of the mold temperature controller housing 1. An adsorption pump 13 is installed on the top of the heat recovery box 12. An air inlet pipe 14 is installed at the air inlet end of the adsorption pump 13, and an expansion pipe 15 (fan-shaped) is installed on the outer wall of the air inlet pipe 14. An air outlet pipe 16 is installed at the air outlet end of the adsorption pump 13. An exhaust port 17 is provided on the top of the heat recovery box 12 for exhaust. A hole 17 is located on one side of the adsorption pump 13. A sealing plug 18 is movably installed on the inner wall of the exhaust hole 17. A branch pipe 19 is fixedly installed on the outer wall of the delivery pipe 11, and the branch pipe 19 communicates with the interior of the delivery pipe 11. The other end of the branch pipe 19 extends into the interior of the hot oil chamber 7. Solenoid valves 20 are installed at both ends of the branch pipe 19. One end of the intake pipe 14 extends into the interior of the combustion chamber 6, and one end of the exhaust pipe 16 extends into the interior of the heat recovery box 12. Both the intake pipe 14 and the exhaust pipe 16 are made of Teflon PTFE. When combustion chamber 6 burns fuel gas to heat hot oil chamber 7, a large amount of heat is generated in combustion chamber 6. This heat is directly released into the air after use, resulting in energy loss. Therefore, this needs to be improved by recovering the heat in combustion chamber 6. First, the solenoid valve 20 near the delivery pipe 11 is opened, allowing one end of branch pipe 19 to be in a flowing state, while the solenoid valve 20 near hot oil chamber 7 is closed. Then, the oil supply pump 3 adds medium to branch pipe 19 and hot oil chamber 7. Subsequently, the opened solenoid valve 20 is closed, and then the adsorption pump 13 operates to transport the hot gas in combustion chamber 6 through intake pipe 14 and expansion pipe 15 to heat recovery tank 12 through exhaust pipe 16. The hot gas then heats the heat transfer medium in branch pipe 19. The heated medium in branch pipe 19 can be easily added to hot oil chamber 7 when new medium is needed, thereby shortening the subsequent heating time. At the same time, heat can be recovered and reused, avoiding energy waste. Finally, the gas in heat recovery tank 12 can be discharged through exhaust port 17.

[0028] Please see Figure 3 and Figure 4The top of the heat recovery box 12 is equipped with a filter safety mechanism to filter the gas generated by the mold temperature controller, preventing indiscriminate emission and environmental pollution. The filter safety mechanism includes an electric push rod 21, which is located on the inner wall of the heat recovery box 12. A filter frame 22 is fixedly installed at the output end of the electric push rod 21. A slide rail 23 is installed on the inner side of the filter frame 22. A slider 24 is movably installed on the inner wall of the slide rail 23. The interior of the slide rail 23 is an elongated groove, and the slider 24 is fitted inside the slide rail 23. The outer wall of the slider 24 is provided with a threaded groove 25, and the inner wall of the threaded groove 25 is provided with a threaded rod 26. A molecular sieve 27 is installed on the outer wall of the threaded rod 26. A gravity block 28 is fixedly installed at the bottom of the slider 24. When the slider 24 is at the extreme position of the slide rail 23, the gravity block 28 and the heat recovery box... The existing mold temperature controller cannot filter the generated gas, resulting in the indiscriminate emission of gas and environmental pollution. Therefore, this needs to be improved. Pull the slider 24 to move in the slide 23 and pull the slider 24 out of the filter frame 22. Then, fix the molecular sieve 27 into the threaded groove 25 through the threaded rod 26. Pulling the slider 24 out of the filter frame 22 is to provide rotation space for the installation of the molecular sieve 27. Then push the slider 24 to make the gravity block 28 fit with the top of the heat recovery box 12. The position of the molecular sieve 27 is limited by the gravity of the gravity block 28. Then, the electric push rod 21 works to drive the filter frame 22 to move. In order to facilitate the removal of the sealing plug 18, the filter frame 22 is then reset. The gas is then filtered by the molecular sieve 27, avoiding gas pollution to the environment.

[0029] Working principle: First, flange pipe 4 is used to connect to the external gas supply equipment, and the gas enters the combustion chamber 6. Oil pump 3, through delivery pipe 11, supplies oil (heat transfer medium, such as heat transfer oil) to the hot oil chamber 7. Combustion chamber 6 heats the medium in hot oil chamber 7, and the external equipment mold is heated through oil supply pipe 8. After completion, the medium needs to be recovered. The medium is recovered by return oil pump 9 and cooled through cooling pipes in cooling box 10 before returning to hot oil chamber 7, thus completing the work. Combustion chamber 6 burns the gas to heat the hot oil chamber 7. During heating, a large amount of heat is generated in the combustion chamber 6, which is directly released into the air after use, resulting in energy loss. Therefore, this needs to be improved by recovering the heat in the combustion chamber 6. First, the solenoid valve 20 near the delivery pipe 11 is opened, allowing one end of the branch pipe 19 to be in a flowing state, while the solenoid valve 20 near the hot oil chamber 7 is closed. Then, the oil supply pump 3 introduces the medium into the branch pipe 19 and the hot oil chamber 7. Subsequently, the opened solenoid valve 20 is closed, and then the adsorption pump 13 operates to draw the hot gas from the combustion chamber 6 through the intake pipe 14 and the expansion pipe 15 through the exhaust pipe 1. 6. The gas is conveyed to the heat recovery box 12. The hot gas then heats the heat transfer medium in the branch pipe 19. The heated medium in the branch pipe 19 can then be easily added to the hot oil chamber 7 when new medium is needed, thus shortening the subsequent heating time. Simultaneously, heat can be recovered and reused, avoiding energy waste. Finally, the gas in the heat recovery box 12 can be discharged through the exhaust port 17. Existing mold temperature controllers cannot filter the generated gas, leading to indiscriminate gas discharge and environmental pollution. Therefore, this needs to be improved. Pulling the slider 24 moves it within the slide rail 23, moving the slider 24 from... Pull the filter frame 22 out, and then fix the molecular sieve 27 into the threaded groove 25 through the threaded rod 26. Pull the slider 24 out of the filter frame 22 to provide rotation space for the installation of the molecular sieve 27. Then push the slider 24 to make the gravity block 28 fit against the top of the heat recovery box 12. The position of the molecular sieve 27 is limited by the gravity of the gravity block 28 itself. Then the electric push rod 21 works to drive the filter frame 22 to move. In order to facilitate the removal of the sealing plug 18, the filter frame 22 is then reset. The gas is then filtered through the molecular sieve 27 to avoid gas pollution of the environment.

[0030] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A gas fuel temperature control device with high safety, characterized in that, The utility model provides a mould temperature controller, including: mould temperature controller shell (1), the top of mould temperature controller shell (1) is equipped with oil pump (3), the oil inlet end of oil pump (3) is equipped with delivery pipe (11), the inner wall of mould temperature controller shell (1) is equipped with combustion chamber (6), the inner wall of combustion chamber (6) is fixedly installed heat oil chamber (7), the top of mould temperature controller shell (1) is equipped with heat recovery mechanism, and heat recovery mechanism is used to recycle and use the heat inside combustion chamber (6). The heat recovery mechanism includes a heat recovery tank (12) provided on the top of the mold temperature controller shell (1), an adsorption pump (13) installed on the top of the heat recovery tank (12), an air inlet pipe (14) installed on the air inlet end of the adsorption pump (13), an expansion pipe (15) installed on the outer wall of the air inlet pipe (14), the expansion pipe (15) being fan-shaped, an air outlet pipe (16) installed on the air outlet end of the adsorption pump (13), an exhaust hole (17) provided on one side of the adsorption pump (13) on the top of the heat recovery tank (12), a sealing plug (18) movably installed on the inner wall of the exhaust hole (17), a branch pipe (19) fixedly installed on the outer wall of the delivery pipe (11) and communicating with the inside of the delivery pipe (11), the branch pipe (19) extending into the heat oil chamber (7) at the other end, and an electromagnetic valve (20) installed on both ends of the branch pipe (19).

2. The gas fuelled temperature control unit as claimed in claim 1, wherein: A control panel (2) is installed on the front of the mold temperature controller shell (1), a flange pipe (4) is installed on the top of the mold temperature controller shell (1), an alarm (5) is installed on the top of the mold temperature controller shell (1), the flange pipe (4) is located on one side of the alarm (5), a fuel supply pipe (8) is installed on the outer wall of the heat oil chamber (7), an oil return pump (9) is installed on the inner wall of the mold temperature controller shell (1), and a cooling tank (10) is installed on the inner wall of the mold temperature controller shell (1).

3. The gas fuelled temperature control unit as claimed in claim 1, wherein: One end of the air inlet pipe (14) extends into the combustion chamber (6), one end of the air outlet pipe (16) extends into the heat recovery tank (12), and the air inlet pipe (14) and the air outlet pipe (16) are both made of Teflon PTFE.

4. The gas fuelled temperature control unit as claimed in claim 1, wherein: A filtering safety mechanism is provided on the top of the heat recovery tank (12) to filter the gas generated by the mold temperature controller and prevent the gas from being randomly discharged to pollute the environment.

5. The gas fuelled temperature control unit as claimed in claim 4, wherein: The filtering safety mechanism includes an electric push rod (21) provided on the inner wall of the heat recovery tank (12).

6. The gas fuelled temperature control unit as claimed in claim 5, wherein: A filter frame (22) is fixedly installed on the output end of the electric push rod (21), a slide (23) is installed on the inner side of the filter frame (22), a sliding block (24) is movably installed on the inner wall of the slide (23), the inside of the slide (23) is an elongated slot, and the sliding block (24) is embedded in the inside of the slide (23).

7. The gas fuelled temperature control unit according to claim 6, wherein: The outer wall of the sliding block (24) is provided with a threaded groove (25), the inner wall of the threaded groove (25) is provided with a threaded rod (26), the outer wall of the threaded rod (26) is mounted with a molecular sieve (27), the bottom of the sliding block (24) is fixedly mounted with a gravity block (28), and when the sliding block (24) is located at the limit position of the slide (23), the gravity block (28) is attached to the top of the heat recovery box (12).

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