A mold with a cooling circulation system

Abstract

The utility model discloses a mold with a cooling circulation system, comprising a box body, an upper mold, a lower mold, a first cooling cavity, and a second cooling cavity are arranged in the box body, and a circulation pump is arranged in the first cooling cavity and / or the second cooling cavity; the first cooling cavity is connected with a plurality of first cooling pipes laid on the inner wall of the box body, and the outer wall of the first cooling pipe contacts the outer wall of the upper mold or the lower mold, and the second cooling cavity is connected with a plurality of second cooling pipes laid on the inner wall of the box body, and the second cooling pipe contacts the lower mold or the upper mold; the other end of the first cooling pipe is connected with a first condensation cavity, and the first condensation cavity is connected with the second cooling cavity, and the other end of the second cooling pipe is connected with a second condensation cavity, and the second condensation cavity is connected with the first cooling cavity. The utility model has a mold with a cooling circulation system, and the mold with the cooling circulation system can improve the cooling efficiency and cooling effect of the mold, and improve the service life of the mold.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a mold with a cooling circulation system. Background Art

[0002] Molds are various molds and tools used in industrial production to obtain the desired products by injection molding, blow molding, extrusion, die casting or forging molding, smelting, stamping and other methods. In short, molds are tools used to make molded objects. This tool is composed of various parts, and different molds are composed of different parts. It mainly realizes the processing of the shape of the object by changing the physical state of the molded material. It is known as the "mother of industry".

[0003] The temperature of the mold plays a vital role in the use of the mold. For example, in an injection mold, low cooling efficiency will affect the molding of the injection molded product. For another example, in a stamping mold, if the stamping temperature is too high and cannot be cooled in time, it will cause overheating and damage to the stamping product, stamping mold, and even stamping equipment.

[0004] Based on the temperature problem of the existing stamping dies when in use, it is necessary to research and develop a cooling circulation system for use in the stamping dies to solve the problem of overheating of the stamping dies when in use. Summary of the invention

[0005] The utility model aims to provide a mold with a cooling circulation system, which can improve the cooling efficiency and cooling effect of the mold and increase the service life of the mold.

[0006] In order to achieve the above object, the utility model provides a mold with a cooling circulation system, and the specific implementation scheme is as follows:

[0007] A mold with a cooling circulation system comprises a box body, an upper mold and a lower mold pressed together are arranged in the box body, and a first cooling cavity and a second cooling cavity are arranged in the box body;

[0008] The outlet end of the first cooling cavity is connected to a plurality of first cooling pipes, the first cooling pipes are laid on the inner wall of the box body facing the upper mold or the lower mold, and the outer wall of the first cooling pipes is in contact with the outer wall of the upper mold or the lower mold, and the outlet end of the second cooling cavity is connected to a plurality of second cooling pipes, the second cooling pipes are laid on the inner wall of the box body facing the lower mold or the upper mold, and the outer wall of the second cooling pipes is in contact with the outer wall of the lower mold or the upper mold;

[0009] A first condensation cavity is connected to the other end of the first cooling pipe, and the outlet end of the first condensation cavity is connected to the inlet end of the second cooling cavity. The other end of the second cooling pipe is connected to the second condensation cavity, and the outlet end of the second condensation cavity is connected to the inlet end of the first cooling cavity. A circulating pump is provided in the first cooling cavity and / or the second cooling cavity.

[0010] The utility model discloses a mold with a cooling circulation system. Compared with the prior art, a box body is provided, an upper mold and a lower mold of the mold are installed by using the box body, a first cooling cavity and a second cooling cavity are provided on the box body, the first cooling cavity is connected to the first condensation cavity by using the first cooling pipe, and the second cooling cavity is connected to the second condensation cavity by using the second cooling pipe, and a circulating pump is used to make the coolant of the first cooling cavity and the second cooling cavity circulate among the first cooling cavity, the first cooling pipe, the first condensation cavity, the second cooling cavity, the second cooling pipe and the second condensation cavity, so as to perform a circulating cooling treatment on the mold in the box body, and because the first cooling pipe and the second cooling pipe both contact the outer wall of the mold, the contact area and contact time of the coolant and the mold are increased, thereby improving the cooling efficiency and cooling effect of the mold and improving the service life of the mold.

[0011] In some embodiments, the box body includes a top plate, a first side plate connected to the bottom side of the top plate, a second side plate connected to the side opposite to the first side plate, and a bottom plate, one side of the top of the bottom plate is connected to the first side plate, and the other side is connected to the second side plate.

[0012] By configuring the box body to have a structure of a top, a bottom plate, a first side plate and a second side plate, and utilizing a split box body structure, the convenience of disassembling the box body is improved, thereby improving the convenience of repairing and maintaining the box body.

[0013] In some embodiments, a first cooling cavity and a second condensation cavity are provided on the first side panel, and a second cooling cavity and a first condensation cavity are provided on the second side panel; or a first cooling cavity and a second condensation cavity are provided on the second side panel, and a second cooling cavity and a first condensation cavity are provided on the first side panel.

[0014] By arranging the first cooling cavity and the second condensation cavity or the second cooling cavity and the first condensation cavity on the first side plate, and arranging the second cooling cavity and the first condensation cavity or the first cooling cavity and the second condensation cavity on the second side plate, the first cooling cavity, the first condensation cavity, the second cooling cavity, and the second condensation cavity are connected in sequence, and then the second condensation cavity is connected back to the first cooling cavity to form a circulation cooling of the cooling liquid, thereby improving the cooling efficiency of the mold.

[0015] In some embodiments, a plurality of embedding grooves are provided on the bottom surface of the top plate facing the upper mold and the top surface of the bottom plate facing the lower mold, the first cooling pipe is embedded in the embedding groove of the bottom plate, and the second cooling pipe is embedded in the embedding groove of the top plate; or the first cooling pipe is embedded in the embedding groove of the top plate, and the second cooling pipe is embedded in the embedding groove of the bottom plate.

[0016] By providing the embedding grooves on both the top and the bottom plate, the first cooling pipe and the second cooling pipe are embedded in the embedding grooves to ensure that the first cooling pipe and the second cooling pipe are both in contact with the mold, thereby ensuring the cooling efficiency of the mold.

[0017] In some of the embodiments, a through hole is opened in the middle of the top plate, and the top plate engaging groove is straight at both ends and is arranged in an arc shape in the middle.

[0018] By setting a through hole on the top plate and setting the engaging groove on the top plate to be an arc shape in the middle with straight ends, it is ensured that the engaging groove is set around the through hole position to avoid interference between the first cooling pipe or the second cooling pipe and the structure of the stamping equipment connected to the mold.

[0019] In some of the embodiments, a connecting piece is provided on the top of the upper die for connecting to a stamping device that drives the upper die to rise and fall and the lower die to stamp.

[0020] A connecting piece is arranged on the top of the upper die, and the connecting piece is used to connect with the stamping equipment, so that the upper die can be raised and lowered under the drive of the stamping equipment to realize the stamping of the product and the opening of the mold.

[0021] In some embodiments, sealing rings are provided on both sides of the top plate, and sealing grooves are provided on the side walls of the first side plate and the second side plate facing the top plate, and the sealing rings are at most partially embedded in the sealing grooves and extruded to fit with the sealing grooves.

[0022] By arranging sealing rings at both sides of the top plate, sealing grooves are arranged on the side walls of the first side plate and the second side plate facing the top plate. The sealing rings are partially embedded in the sealing grooves and the sealing grooves are extruded and matched to improve the sealing performance of the connection between the top plate and the first side plate and the second side plate when the upper mold and the lower mold are closed, thereby avoiding leakage of coolant.

[0023] In some embodiments, a first conveying pipe is provided on the outer wall of the first side panel, a second conveying pipe is provided on the outer wall of the second side panel, the circulating pump is provided on both the first conveying pipe and the second conveying pipe, and the first conveying pipe connects the first cooling cavity and the second condensation cavity, and the second conveying pipe connects the second cooling cavity and the first condensation cavity; or the first conveying pipe connects the second cooling cavity and the first condensation cavity, and the second conveying pipe connects the first cooling cavity and the second condensation cavity.

[0024] A first delivery pipe is arranged on the outer wall of the first side plate, a second delivery pipe is arranged on the outer wall of the second side plate, and circulation pumps are arranged on the first delivery pipe and the second delivery pipe. In actual use, the operation of the two circulation pumps is utilized to drive the coolant to circulate in the box body, thereby ensuring the cooling efficiency of the mold.

[0025] In some embodiments, a plurality of condensation tubes are provided in the first condensation cavity and the second condensation cavity, and the condensation tubes are connected to an external condensation generator.

[0026] By arranging a plurality of condensing tubes connected to an external condensation generator in the first condensing cavity and the second condensing cavity, the condensing tubes are used to condense and cool the coolant entering the first condensing cavity and the second condensing cavity, so as to avoid the coolant heating up after cooling the mold, thereby affecting the cooling effect and cooling efficiency of the mold.

[0027] Based on the above technical solution, the utility model has the following beneficial effects compared with the prior art:

[0028] A box is provided, and the upper and lower molds of the mold are installed by using the box. A first cooling cavity and a second cooling cavity are provided on the box. The first cooling cavity is connected to the first condensation cavity by using a first cooling pipe, and the second cooling cavity is connected to the second condensation cavity by using a second cooling pipe. A circulating pump is used to circulate the coolant of the first cooling cavity and the second cooling cavity among the first cooling cavity, the first cooling pipe, the first condensation cavity, the second cooling cavity, the second cooling pipe, and the second condensation cavity, so as to perform a circulating cooling treatment on the mold in the box. Moreover, since the first cooling pipe and the second cooling pipe both contact the outer wall of the mold, the contact area and contact time between the coolant and the mold are increased, thereby improving the cooling efficiency and cooling effect of the mold, and improving the service life of the mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural schematic diagram of the utility model in the mold closing state;

[0030] Figure 2 It is a structural schematic diagram of the utility model in the mold opening state.

[0031] Description of reference numerals:

[0032] 100, box body; 110, top plate; 120, bottom plate; 130, first side plate; 140, second side plate; 150, first cooling cavity; 151, first cooling pipe; 160, second cooling cavity; 161, second cooling pipe; 170, first condensing cavity; 171, first conveying pipe; 180, second condensing cavity; 181, second conveying pipe; 190, condensing pipe; 200, upper mold; 210, connecting piece; 300, lower mold; 400, circulating pump; 500, sealing ring; 600, sealing groove. DETAILED DESCRIPTION

[0033] In order to facilitate the understanding of the present invention, specific embodiments of the present invention will be described in more detail below with reference to the accompanying drawings.

[0034] Unless otherwise specified or defined, the "first, second..." used in this article is merely used to distinguish names and does not represent a specific quantity or order.

[0035] Unless specifically stated or defined otherwise, the term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0036] It should be noted that, in this document, “fixed to” or “connected to” may mean directly fixing or connecting to an element, or indirectly fixing or connecting to an element.

[0037] like Figure 1-2 As shown, a mold with a cooling circulation system provided in this embodiment includes a box body 100, an upper mold 200 and a lower mold 300 pressed against each other are arranged in the box body 100, and a first cooling cavity 150 and a second cooling cavity 160 are arranged in the box body 100;

[0038] The outlet end of the first cooling cavity is connected to a plurality of first cooling pipes 151, which are laid on the inner wall of the box body 100 facing the upper mold 200 or the lower mold 300, and the outer wall of the first cooling pipe 151 contacts the outer wall of the upper mold 200 or the lower mold 300; the outlet end of the second cooling cavity 160 is connected to a plurality of second cooling pipes 161, which are laid on the inner wall of the box body 100 facing the lower mold 300 or the upper mold 200, and the outer wall of the second cooling pipe 161 contacts the outer wall of the lower mold 300 or the upper mold 200;

[0039] A first condensing chamber 170 is connected to the other end of the first cooling pipe 151, and the outlet end of the first condensing chamber 170 is connected to the inlet end of the second cooling chamber 160. The other end of the second cooling pipe 161 is connected to a second condensing chamber 180, and the outlet end of the second condensing chamber 180 is connected to the inlet end of the first cooling chamber 150. A circulating pump 400 is provided in the first cooling chamber 150 and / or the second cooling chamber 160.

[0040] In some embodiments, the box body 100 includes a top plate 110, a first side plate 130 connected to the bottom side of the top plate 110, a second side plate 140 connected to the side opposite to the first side plate 130, and a bottom plate 120, wherein one side of the top of the bottom plate 120 is connected to the first side plate 130, and the other side is connected to the second side plate 140.

[0041] By configuring the box body 100 to have a structure of a top, a bottom plate 120, a first side plate 130 and a second side plate 140, and utilizing a split structure of the box body 100, the convenience of disassembly of the box body 100 is improved, thereby improving the convenience of repair and maintenance of the box body 100.

[0042] In some embodiments, a first cooling cavity 150 and a second condensing cavity 180 are provided on the first side plate 130, and a second cooling cavity 160 and a first condensing cavity 170 are provided on the second side plate 140; or a first cooling cavity 150 and a second condensing cavity 180 are provided on the second side plate 140, and a second cooling cavity 160 and a first condensing cavity 170 are provided on the first side plate 130.

[0043] By arranging the first cooling cavity 150 and the second condensing cavity 180 or the second cooling cavity 160 and the first condensing cavity 170 on the first side plate 130, and arranging the second cooling cavity 160 and the first condensing cavity 170 or the first cooling cavity 150 and the second condensing cavity 180 on the second side plate 140, the first cooling cavity 150, the first condensing cavity 170, the second cooling cavity 160, and the second condensing cavity 180 are connected in sequence, and then the second condensing cavity 180 is connected back to the first cooling cavity 150 to form a circulation cooling of the cooling liquid, thereby improving the cooling efficiency of the mold.

[0044] In some of the embodiments, a plurality of embedding grooves are provided on the bottom surface of the top plate 110 facing the upper mold 200 and on the top surface of the bottom plate 120 facing the lower mold 300, the first cooling pipe 151 is embedded in the embedding groove of the bottom plate 120, and the second cooling pipe 161 is embedded in the embedding groove of the top plate 110; or the first cooling pipe 151 is embedded in the embedding groove of the top plate 110, and the second cooling pipe 161 is embedded in the embedding groove of the bottom plate 120.

[0045] By providing engaging grooves on both the top plate and the bottom plate 120 , the first cooling pipe 151 and the second cooling pipe 161 are engaged with the engaging grooves to ensure that the first cooling pipe 151 and the second cooling pipe 161 are both in contact with the mold, thereby ensuring the cooling efficiency of the mold.

[0046] In some of the embodiments, a through hole is opened in the middle of the top plate 110 , and the engaging groove located in the top plate 110 is straight at both ends and is arranged in an arc shape in the middle.

[0047] By setting a through hole on the top plate 110 and setting the engaging groove on the top plate 110 to be an arc shape in the middle with straight ends, it is ensured that the engaging groove is set around the through hole position to avoid interference between the first cooling pipe 151 or the second cooling pipe 161 and the structure of the stamping equipment connected to the mold.

[0048] In some of the embodiments, a connecting member 210 is provided on the top of the upper die 200 for connecting to a stamping device that drives the upper die 200 to rise and fall and to stamp with the lower die 300.

[0049] By arranging a connector 210 on the top of the upper die 200 and connecting it to the stamping equipment via the connector 210, the upper die 200 can be raised and lowered driven by the stamping equipment to achieve product stamping and mold opening.

[0050] In some embodiments, sealing rings 500 are provided on both sides of the top plate 110, and sealing grooves 600 are provided on the side walls of the first side plate 130 and the second side plate 140 facing the top plate 110, and the sealing rings 500 are at most partially embedded in the sealing grooves 600 and extruded to fit with the sealing grooves 600.

[0051] By arranging sealing rings 500 at both sides of the top plate 110, sealing grooves 600 are arranged on the side walls of the first side plate 130 and the second side plate 140 facing the top plate 110. By using the sealing ring 500 to be partially embedded in the sealing groove 600 and the sealing groove 600 to be extruded and matched, the first cooling pipe 151 is improved in the sealing performance between the connection between the top plate 110 and the first side plate 130 and the second side plate 140 when the upper mold 200 and the lower mold 300 are closed, thereby avoiding the occurrence of cooling liquid leakage.

[0052] In some embodiments, a first delivery pipe 171 is provided on the outer wall of the first side panel 130, and a second delivery pipe 181 is provided on the outer wall of the second side panel 140, and the circulating pump 400 is provided on both the first delivery pipe 171 and the second delivery pipe 181, and the first delivery pipe 171 connects the first cooling cavity 150 and the second condensing cavity 180, and the second delivery pipe 181 connects the second cooling cavity 160 and the first condensing cavity 170; or the first delivery pipe 171 connects the second cooling cavity 160 and the first condensing cavity 170, and the second delivery pipe 181 connects the first cooling cavity 150 and the second condensing cavity 180.

[0053] A first delivery pipe 171 is arranged on the outer wall of the first side plate 130, and a second delivery pipe 181 is arranged on the outer wall of the second side plate 140. Circulation pumps 400 are arranged on both the first delivery pipe 171 and the second delivery pipe 181. In actual use, the two circulation pumps 400 are used to drive the coolant to circulate in the box body 100, thereby ensuring the cooling efficiency of the mold.

[0054] In some embodiments, a plurality of condensation tubes 190 are disposed in the first condensation cavity 170 and the second condensation cavity 180 , and the condensation tubes 190 are connected to an external condensation generator.

[0055] By arranging a plurality of condensing tubes 190 connected to an external condensation generator in the first condensing cavity 170 and the second condensing cavity 180, the condensing tubes 190 are used to condense and cool the coolant entering the first condensing cavity 170 and the second condensing cavity 180, so as to avoid the coolant from heating up after cooling the mold, thereby affecting the cooling effect and cooling efficiency of the mold.

[0056] The condenser, circulating pump 400 and stamping equipment described in this embodiment can all adopt existing technologies.

[0057] Working principle: First, the mold is placed inside the box 100 with the help of the existing mold transfer tool. The connecting piece 210 of the upper mold 200 passes through the through hole of the top plate 110 and extends to the outside of the box 100 to connect with the stamping equipment that controls the lifting of the upper mold 200. The stamping equipment controls the upper mold 200 and the lower mold 300 to close the mold. At this time, the top plate 110 follows the decline so that the sealing rings 500 on both sides of the top plate 110 are squeezed and matched with the sealing grooves 600 on the sides of the first side plate 130 and the second side plate 140 to ensure the normal cooling of the first cooling pipe 151 and the second cooling pipe 161. The circulating pump 400 is then started to transport the coolant in the first cooling cavity 150 and the second cooling cavity 160 through the first cooling pipe 151 and the second cooling pipe 161 to the first condensing cavity 170 and the second condensing cavity 180 to perform heat exchange and cooling on the mold. The heated coolant enters the first condensing cavity 170 and the second condensing cavity 180 to cool down and then re-enters the first cooling cavity 150 and the second cooling cavity 160 through the first delivery pipe 171 and the second delivery pipe 181, thereby circulating to cool the mold.

[0058] The mold with a cooling circulation system provided in this embodiment is compared with the prior art. By setting a box body 100, the upper mold 200 and the lower mold 300 of the mold are installed by using the box body 100, and a first cooling cavity 150 and a second cooling cavity 160 are set on the box body 100. The first cooling cavity 150 is connected to the first condensing cavity 170 by using a first cooling pipe 151, and the second cooling cavity 160 is connected to the second condensing cavity 180 by using a second cooling pipe 161. The first cooling cavity 150 is connected to the second condensing cavity 180 by using a circulating pump 400. The coolant in the second cooling cavity 160 circulates among the first cooling cavity 150, the first cooling pipe 151, the first condensation cavity 170, the second cooling cavity 160, the second cooling pipe 161, and the second condensation cavity 180, so as to perform a circulation cooling treatment on the mold in the box body 100. Moreover, since the first cooling pipe 151 and the second cooling pipe 161 both contact the outer wall of the mold, the contact area and contact time between the coolant and the mold are increased, thereby improving the cooling efficiency and cooling effect of the mold and increasing the service life of the mold.

[0059] According to the disclosure and teaching of the above description, the technical personnel in the field to which the utility model belongs can also change and modify the above implementation. Therefore, the utility model is not limited to the specific implementation methods disclosed and described above, and some modifications and changes to the utility model should also fall within the scope of protection of the claims of the utility model. In addition, although some specific terms are used in this specification, these terms are only for the convenience of description and do not constitute any limitation to the utility model.

Claims

1. A mold with a cooling circulation system, characterized in that: It comprises a box body (100), an upper mold (200) and a lower mold (300) pressed against each other are arranged in the box body (100), and a first cooling cavity (150) and a second cooling cavity (160) are arranged in the box body (100); The outlet end of the first cooling cavity is connected to a plurality of first cooling pipes (151), the first cooling pipes (151) are laid on the inner wall of the box (100) facing the upper mold (200) or the lower mold (300), and the outer wall of the first cooling pipe (151) contacts the outer wall of the upper mold (200) or the lower mold (300); the outlet end of the second cooling cavity (160) is connected to a plurality of second cooling pipes (161), the second cooling pipes (161) are laid on the inner wall of the box (100) facing the lower mold (300) or the upper mold (200), and the outer wall of the second cooling pipe (161) contacts the outer wall of the lower mold (300) or the upper mold (200); A first condensing chamber (170) is connected to the other end of the first cooling pipe (151), and an outlet end of the first condensing chamber (170) is connected to an inlet end of the second cooling chamber (160); a second condensing chamber (180) is connected to the other end of the second cooling pipe (161), and an outlet end of the second condensing chamber (180) is connected to an inlet end of the first cooling chamber (150); and a circulating pump (400) is provided in the first cooling chamber (150) and / or the second cooling chamber (160).

2. The mold with a cooling circulation system according to claim 1, characterized in that: The box body (100) includes a top plate (110), a first side plate (130) connected to one side of the bottom of the top plate (110), a second side plate (140) connected to the side opposite to the first side plate (130), and a bottom plate (120), one side of the top of the bottom plate (120) being connected to the first side plate (130) and the other side being connected to the second side plate (140).

3. The mold with a cooling circulation system according to claim 2, characterized in that: A first cooling cavity (150) and a second condensing cavity (180) are provided on the first side plate (130), and a second cooling cavity (160) and a first condensing cavity (170) are provided on the second side plate (140); or a first cooling cavity (150) and a second condensing cavity (180) are provided on the second side plate (140), and a second cooling cavity (160) and a first condensing cavity (170) are provided on the first side plate (130).

4. The mold with a cooling circulation system according to claim 3, characterized in that: A plurality of embedding grooves are provided on the bottom surface of the top plate (110) facing the upper mold (200) and on the top surface of the bottom plate (120) facing the lower mold (300); the first cooling pipe (151) is embedded in the embedding groove of the bottom plate (120), and the second cooling pipe (161) is embedded in the embedding groove of the top plate (110); or the first cooling pipe (151) is embedded in the embedding groove of the top plate (110), and the second cooling pipe (161) is embedded in the embedding groove of the bottom plate (120).

5. The mold with a cooling circulation system according to claim 4, characterized in that: A through hole is provided in the middle of the top plate (110), and the embedding groove located on the top plate (110) is straight at both ends and is arranged in an arc shape in the middle.

6. The mold with a cooling circulation system according to claim 5, characterized in that: A connecting piece (210) is provided on the top of the upper die (200) for connecting a stamping device that drives the upper die (200) to rise and fall and to stamp with the lower die (300).

7. The mold with a cooling circulation system according to claim 4, characterized in that: Sealing rings (500) are provided on both sides of the top plate (110), and sealing grooves (600) are provided on the side walls of the first side plate (130) and the second side plate (140) facing the top plate (110), and the sealing rings (500) are at most partially embedded in the sealing grooves (600) to be extruded and matched with the sealing grooves (600).

8. The mold with a cooling circulation system according to any one of claims 2 to 7, characterized in that: A first delivery pipe (171) is provided on the outer wall of the first side plate (130), and a second delivery pipe (181) is provided on the outer wall of the second side plate (140). The circulating pump (400) is provided on both the first delivery pipe (171) and the second delivery pipe (181), and the first delivery pipe (171) is connected to the first cooling cavity (150) and the second condensing cavity (180), and the second delivery pipe (181) is connected to the second cooling cavity (160) and the first condensing cavity (170); or the first delivery pipe (171) is connected to the second cooling cavity (160) and the first condensing cavity (170), and the second delivery pipe (181) is connected to the first cooling cavity (150) and the second condensing cavity (180).

9. The mold with a cooling circulation system according to any one of claims 2 to 7, characterized in that: A plurality of condensation tubes (190) are provided in the first condensation cavity (170) and the second condensation cavity (180), and the condensation tubes (190) are connected to an external condensation generator.

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