Condensing equipment for muffle tank

Abstract

The utility model relates to the technical field of heat treatment, and discloses condensing equipment for a muffle tank, which comprises an extraction pipe, a transmission pipe, a condenser, an output pipe and a vacuum pump, an exhaust interface is arranged on the extraction pipe, a high vacuum air control baffle valve is arranged between the transmission pipe and the condenser, a corrugated pipe is arranged between the transmission pipe and the condenser, and the output pipe is connected with the corrugated pipe. A corrugated pipe is also arranged between the condenser and the output pipe; the corrugated pipe connected with the output pipe is obliquely arranged, the included angle between the corrugated pipe and the horizontal direction is alpha, and the end, close to the condenser, of the corrugated pipe is lower than the end close to the output pipe. By arranging the inclined corrugated pipe, on one hand, the influence of vibration of the vacuum pump on the pipeline joint can be reduced, the pipeline is prevented from loosening, and the maintenance frequency is reduced; on the other hand, the corrugated pipe can capture a small amount of water vapor in gas exhausted from the condenser, condensed liquid flows back to the condenser, erosion of the water vapor to the vacuum pump is reduced, and the service life of the vacuum pump is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of heat treatment technology, specifically, to a condensation device for a muffle tank. Background Technology

[0002] A muffle pot is an experimental device used for heating, melting, and heat treatment in high-temperature environments. It is typically made of heat-resistant materials (such as aluminum alloys, steel, or ceramics) and provides a uniform temperature distribution. Muffle pots are widely used in laboratories, industrial heat treatment, chemical experiments, and metal smelting, and are particularly suitable for material heat treatment, metal melting, sintering, and high-temperature experiments.

[0003] Bluing is a technique that uses chemical or electrochemical reactions to form a thin blue oxide film on the surface of a metal. It is mainly used for corrosion protection and aesthetic treatment of steel and certain alloys, especially for the surface treatment of metal parts of firearms such as gun barrels and knives.

[0004] In bluing applications, muffle cans are often used to provide a heat treatment environment for metal parts, helping the metal material reach the required temperature and promoting the formation of a bluing film. In some specific bluing processes, metal parts may need to be heated at high temperatures to allow the metal surface to react with oxides and form a protective film.

[0005] In the process, condensation equipment is usually required to condense steam. However, existing condensation equipment cannot ensure that water vapor in the steam is completely condensed. Therefore, a small amount of residual water vapor is discharged through the vacuum pump. Over time, this water vapor will corrode the vacuum pump and affect its lifespan. Furthermore, because the vacuum pump vibrates during operation, the rigidly connected pipelines will also be affected, causing the connections to loosen or even detach. Utility Model Content

[0006] The purpose of this invention is to provide a condensation device for muffle tanks, which solves the problems in existing condensation devices, such as the corrosion of vacuum pumps by a small amount of water vapor and the loosening of connecting pipes due to vacuum pump vibration.

[0007] This utility model is achieved through the following technical solution: a condensation device for a muffle tank, comprising an extraction pipe, a transmission pipe, a condenser, an output pipe, and a vacuum pump. The end of the transmission pipe is connected to the extraction pipe and the condenser respectively, and the end of the output pipe is connected to the condenser and the vacuum pump respectively. The extraction pipe is connected to the tank body and is equipped with an exhaust port. A high-vacuum air-controlled baffle valve is provided between the transmission pipe and the condenser. A bellows is provided between the transmission pipe and the condenser, and a bellows is also provided between the condenser and the output pipe. The bellows connected to the output pipe is inclined, with an angle α between it and the horizontal direction. The end of the bellows near the condenser is lower than the end near the output pipe.

[0008] To better realize this utility model, the condenser is further provided with a condenser air inlet, a condenser air outlet, a level gauge, a condenser water inlet, a condenser water outlet, and an automatic drain ball valve. The condenser air inlet is connected to the transmission pipe through a corrugated pipe, and the condenser air outlet is connected to the output pipe through a corrugated pipe. The condenser water inlet and the condenser water outlet are respectively connected to external pipelines. The level gauge is used to detect the condensate water level in the condenser, and the automatic drain ball valve is used to drain the condensate water collected in the condenser.

[0009] To better realize this utility model, a monitoring tube is further connected to the transmission tube, and the monitoring tube is provided with a first interface, a second interface, a third interface, and a fourth interface. A water-proof automatic ball valve is installed on the third interface, and a vacuum gauge is installed on the water-proof automatic ball valve. A pressure gauge is installed on the second interface, and a pressure transmitter is installed on the fourth interface.

[0010] To better realize this utility model, further, a cooling sleeve is fitted on the extraction pipe, the cooling sleeve is provided with a sleeve inlet and a sleeve outlet, and the sleeve inlet and sleeve outlet are respectively connected to external pipelines; a liquid collecting pipe is connected to the extraction pipe, the liquid collecting pipe is provided with a drain outlet, and a manual ball valve is installed on the drain outlet; the transmission pipe is higher than the extraction pipe, and the liquid collecting pipe is lower than the extraction pipe.

[0011] To better realize this utility model, the extraction tube is further provided with a thermocouple interface, which is used to install a temperature measuring thermocouple.

[0012] To better realize this utility model, the extraction tube is further provided with a safety interface, and a safety valve is installed on the safety interface.

[0013] To better realize this utility model, the extraction tube is further provided with a probe interface, and an oxygen probe is installed on the probe interface.

[0014] Compared with the prior art, this utility model has the following advantages and beneficial effects:

[0015] (1) By setting an inclined bellows, this utility model can reduce the impact of the vibration of the vacuum pump on the pipe connection, prevent the pipe from loosening, and reduce the maintenance frequency. On the other hand, the bellows can capture a small amount of water vapor in the gas discharged from the condenser and return the condensed liquid to the condenser, thereby reducing the corrosion of the vacuum pump by water vapor and improving the service life of the vacuum pump.

[0016] (2) By setting a cooling sleeve, this utility model can initially cool the steam extracted from the extraction pipe, thereby reducing the steam temperature, reducing the damage of high-temperature steam to the valve, and improving the service life of the valve. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the bellows and condenser structure.

[0019] Figure 3 This is a schematic diagram of the overall structure of the condenser.

[0020] Figure 4 This is a schematic diagram of the extraction tube and cooling tube sleeve structure.

[0021] Figure 5 This is a schematic diagram of the liquid collection pipe structure.

[0022] Figure 6 This is a schematic diagram of the monitoring tube structure.

[0023] Wherein: 101-Extraction tube; 1011-Safety interface; 1012-Probe interface; 1013-Thermocouple interface; 102-Cooling sleeve; 1021-Sleeve inlet; 1022-Sleeve outlet; 103-Collection tube; 1031-Drain outlet; 1032-Exhaust interface; 104-Transfer tube; 105-Monitoring tube; 1051-First interface; 1052-Second interface; 105... 3-Third interface; 1054-Automatic water-proof ball valve; 1055-Fourth interface; 106-Bellwall; 107-Condenser; 1071-Condenser inlet; 1072-Condenser outlet; 1073-Level gauge; 1074-Condenser water inlet; 1075-Condenser water outlet; 1076-Automatic drain ball valve; 108-Output pipe; 109-Vacuum pump; 110-High vacuum pneumatic baffle valve. Detailed Implementation

[0024] 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.

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

[0026] Example 1:

[0027] This embodiment provides a condensation device for a muffle tank, specifically as follows: Figure 1 , Figure 2 , Figure 5 As shown, the system includes an extraction pipe 101, a transmission pipe 104, a condenser 107, an output pipe 108, and a vacuum pump 109. The ends of the transmission pipe 104 are connected to the extraction pipe 101 and the condenser 107, respectively. The ends of the output pipe 108 are connected to the condenser 107 and the vacuum pump 109, respectively. The extraction pipe 101 is connected to the tank body. An exhaust port 1032 is installed on the extraction pipe 101. A high-vacuum air-controlled baffle valve 110 is provided between the transmission pipe 104 and the condenser 107. A bellows 106 is provided between the transmission pipe 104 and the condenser 107. A bellows 106 is also provided between the condenser 107 and the output pipe 108. The bellows 106 connected to the output pipe 108 is inclined, with an angle α between it and the horizontal direction. The end of the bellows 106 near the condenser 107 is lower than the end near the output pipe 108.

[0028] In the initial stage of tank operation, exhaust port 1032 is closed, vacuum pump 109 is started, and high-vacuum air-controlled baffle valve 110 automatically opens. Vacuum pump 109 removes air from the tank, creating a vacuum. Then, steam is introduced into the tank to heat the furnace. Vacuum pump 109 continues to run. The steam enters condenser 107 and begins to condense, but a very small amount of steam will escape from condenser 107. The bellows 106, with its undulating walls, can capture this steam. Because the bellows 106 is tilted at an α degree, the condensed droplets flow back. The gas is collected in the condenser 107, and the dry gas is discharged from the vacuum pump 109. The alpha here is preferably 5-10° to ensure that the droplets can flow back and to control the overall volume of the equipment. Since the vacuum pump 109 will vibrate during operation, the bellows 106 also serves as a shock absorber to prevent the connected pipes from becoming loose. After the heating is completed, the tank begins to heat treat the workpiece. When the heat treatment is finished, the vacuum pump 109 is turned off. At this time, the high vacuum air-controlled baffle valve 110 is automatically closed, the exhaust port 1032 is opened, and the heat treatment is completed.

[0029] The vacuum pump 109 is model SV630B(F); the exhaust port 1032 is model GUQ-25 / KF; and the high-vacuum air-controlled baffle valve 110 is model CHB-V1-50-EB-WS-DC24V. Therefore, its specific working principle and structure are easily understood by those skilled in the art and will not be elaborated upon here.

[0030] By incorporating the bellows 106, on the one hand, the deformability of the bellows 106 reduces the impact of the vibration of the vacuum pump 109 on the pipe connection, prevents the pipe from loosening, and reduces the maintenance frequency; on the other hand, the bellows 106 can capture the small amount of water vapor in the gas discharged from the condenser 107 and return the condensed liquid to the condenser 107, reducing the corrosion of the vacuum pump 109 by water vapor and improving the service life of the vacuum pump 109.

[0031] Example 2:

[0032] This embodiment further expands upon the condenser 107 based on the above embodiment, specifically as follows: Figure 3As shown, the condenser 107 is equipped with a condensate inlet 1071, a condensate outlet 1072, a level gauge 1073, a condensate water inlet 1074, a condensate water outlet 1075, and an automatic drain ball valve 1076. The condensate inlet 1071 is connected to the transmission pipe 104 via a bellows 106, and the condensate outlet 1072 is connected to the output pipe 108 via a bellows 106. The condensate water inlet 1074 and the condensate water outlet 1075 are respectively connected to external pipelines. The level gauge 1073 is used to detect the condensate water level in the condenser 107, and the automatic drain ball valve 1076 is used to drain the condensate water collected in the condenser 107. The automatic drain ball valve 1076 is model GUQ-16 / KF.

[0033] Water vapor from the tank is drawn from the extraction pipe 101, then enters the transmission pipe 104, and then enters the condenser 107 through the condenser inlet 1071, and is discharged into the output pipe 108 from the condenser outlet 1072. During this period, cooling water is continuously circulated through the condenser inlet 1074 and the condenser outlet 1075 to ensure the condensation effect. When the liquid level gauge 1073 detects that the liquid level has reached the preset value, the automatic drain ball valve 1076 opens to discharge the condensate.

[0034] The other parts of this embodiment are the same as those in the above embodiments, and will not be described again.

[0035] Example 3:

[0036] This embodiment further extends the above embodiment, specifically as follows: Figure 6 As shown, a monitoring pipe 105 is connected to the transmission pipe 104. The monitoring pipe 105 is provided with a first interface 1051, a second interface 1052, a third interface 1053, and a fourth interface 1055. A water-tight automatic ball valve 1054 is installed on the third interface 1053, and a vacuum gauge is installed on the water-tight automatic ball valve 1054. A pressure gauge is installed on the second interface 1052, and a pressure transmitter is installed on the fourth interface 1055. The water-tight automatic ball valve 1054 is model GUQ-16 / KF; the pressure gauge is model YXC-100B-F (-0.1—0.3) MPa.

[0037] The vacuum gauge tube is used to monitor the negative pressure state inside the tank; the pressure transmitter is used to monitor the positive pressure state inside the tank; the pressure gauge serves as an alarm. If the pressure transmitter malfunctions and the positive pressure cannot be detected, and then exceeds the alarm value of the pressure gauge, an alarm will be triggered to alert the personnel; the first interface 1051 is normally sealed with a blind flange, and a vacuum gauge is installed for testing when needed. To prevent water from entering the vacuum gauge tube, an automatic water-proof ball valve 1054 is installed, which is closed when vacuuming is not performed.

[0038] The other parts of this embodiment are the same as those in the above embodiments, and will not be described again.

[0039] Example 4:

[0040] This embodiment further expands upon the extraction tube 101 based on the above embodiment, specifically as follows: Figure 4 , Figure 5 As shown, a cooling sleeve 102 is fitted onto the extraction pipe 101. The cooling sleeve 102 is provided with a sleeve inlet 1021 and a sleeve outlet 1022. The sleeve inlet 1021 and the sleeve outlet 1022 are respectively connected to external pipelines. A liquid collecting pipe 103 is connected to the extraction pipe 101. A drain outlet 1031 is provided on the liquid collecting pipe 103, and a manual ball valve is installed on the drain outlet 1031. The transmission pipe 104 is higher than the extraction pipe 101, and the liquid collecting pipe 103 is lower than the extraction pipe 101.

[0041] When the exhaust port 1032 or the vacuum pump 109 is working, the cooling sleeve 102 continues to operate, using the sleeve inlet 1021 and outlet 1022 for water circulation to initially cool the steam extracted from the extraction pipe 101, thereby reducing the steam temperature, minimizing damage to the valve from high-temperature steam, and extending the valve's service life. During this process, some condensed water droplets collect in the collection pipe 103, and the operator can periodically open the manual ball valve on the drain port 1031 to drain the water.

[0042] The other parts of this embodiment are the same as those in the above embodiments, and will not be described again.

[0043] Example 5:

[0044] This embodiment further expands upon the extraction tube 101 based on the above embodiment, specifically as follows: Figure 5 As shown, the extraction tube 101 is provided with a thermocouple interface 1013, which is used to install a temperature measuring thermocouple.

[0045] Normally, thermocouple interface 1013 is sealed with a blind flange. When needed, it is opened to install a temperature measuring thermocouple for testing. The reserved opening facilitates routine inspection work.

[0046] The other parts of this embodiment are the same as those in the above embodiments, and will not be described again.

[0047] Example 6:

[0048] This embodiment further expands upon the extraction tube 101 based on the above embodiment, specifically as follows: Figure 4 As shown, a safety interface 1011 is provided on the extraction tube 101, and a safety valve is installed on the safety interface 1011.

[0049] By setting a safety valve, the safety valve will automatically open when the air pressure in the extraction pipe 101 is abnormal, thus preventing damage to the equipment.

[0050] The other parts of this embodiment are the same as those in the above embodiments, and will not be described again.

[0051] Example 7:

[0052] This embodiment further expands upon the extraction tube 101 based on the above embodiment, specifically as follows: Figure 4 As shown, the extraction tube 101 is provided with a probe interface 1012, and an oxygen probe is installed on the probe interface 1012.

[0053] An oxygen probe is used to detect the oxygen content in the vapor extracted from the extraction tube 101, thereby ensuring the smooth progress of the heat treatment process. The oxygen probe model is SP-LD-1.

[0054] The other parts of this embodiment are the same as those in the above embodiments, and will not be described again.

[0055] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. A condensing device for a muffle tank, comprising an extraction pipe (101), a transfer pipe (104), a condenser (107), an output pipe (108), and a vacuum pump (109), wherein the ends of the transfer pipe (104) are respectively connected to the extraction pipe (101) and the condenser (107), the ends of the output pipe (108) are respectively connected to the condenser (107) and the vacuum pump (109), the extraction pipe (101) is connected to the tank body, an exhaust port (1032) is installed on the extraction pipe (101), and a high-vacuum pneumatic baffle valve (110) is provided between the transfer pipe (104) and the condenser (107), characterized in that: A corrugated pipe (106) is provided between the transmission pipe (104) and the condenser (107), and a corrugated pipe (106) is also provided between the condenser (107) and the output pipe (108); the corrugated pipe (106) connected to the output pipe (108) is inclined and its angle with the horizontal direction is α, and the end of the corrugated pipe (106) near the condenser (107) is lower than the end near the output pipe (108).

2. A condensation device for a muffle tank according to claim 1, characterized in that: The condenser (107) is provided with a condenser air inlet (1071), a condenser air outlet (1072), a level gauge (1073), a condenser water inlet (1074), a condenser water outlet (1075), and an automatic drain ball valve (1076). The condenser air inlet (1071) is connected to the transmission pipe (104) through a bellows pipe (106), and the condenser air outlet (1072) is connected to the output pipe (108) through a bellows pipe (106). The condenser water inlet (1074) and the condenser water outlet (1075) are respectively connected to external pipelines. The level gauge (1073) is used to detect the condensate water level in the condenser (107), and the automatic drain ball valve (1076) is used to drain the condensate water collected in the condenser (107).

3. A condensation device for a muffle tank according to claim 1, characterized in that: The transmission pipe (104) is connected to the monitoring pipe (105). The monitoring pipe (105) is provided with a first interface (1051), a second interface (1052), a third interface (1053), and a fourth interface (1055). A water-proof automatic ball valve (1054) is installed on the third interface (1053). A vacuum gauge is installed on the water-proof automatic ball valve (1054). A pressure gauge is installed on the second interface (1052). A pressure transmitter is installed on the fourth interface (1055).

4. A condensation device for a muffle tank according to claim 1, characterized in that: A cooling sleeve (102) is fitted onto the extraction pipe (101). The cooling sleeve (102) is provided with a sleeve inlet (1021) and a sleeve outlet (1022). The sleeve inlet (1021) and the sleeve outlet (1022) are respectively connected to external pipelines. A liquid collection pipe (103) is connected to the extraction pipe (101). A drain outlet (1031) is provided on the liquid collection pipe (103). A manual ball valve is installed on the drain outlet (1031). The transmission pipe (104) is higher than the extraction pipe (101), and the liquid collection pipe (103) is lower than the extraction pipe (101).

5. A condensation device for a muffle tank according to claim 1, characterized in that: The extraction tube (101) is provided with a thermocouple interface (1013), which is used to install a temperature measuring thermocouple.

6. A condensation device for a muffle tank according to claim 1, characterized in that: The extraction tube (101) is provided with a safety interface (1011), and a safety valve is installed on the safety interface (1011).

7. A condensing device for a muffle tank according to claim 1, characterized in that: The extraction tube (101) is provided with a probe interface (1012), and an oxygen probe is installed on the probe interface (1012).

Images