Heat exchanger for ship

Abstract

The ship heat exchanger comprises a first shell and a second shell, pipelines are arranged in the first shell and the second shell, the pipelines are arranged in an S shape, metal fin plates are further fixedly connected to the outsides of the pipelines, one end of the pipeline located in the first shell is an inlet, and the other end of the pipeline is a first outlet and a first connecting pipe; a cushion block is fixedly connected to the upper end of the first shell, the second shell is pressed on the cushion block, the first connecting pipe penetrates through the cushion block, one end of the pipeline in the second shell is a second connecting pipe, the other end of the pipeline in the second shell is a second outlet, and the first connecting pipe and the second connecting pipe can be communicated with each other. According to the device, the first shell and the second shell can be conveniently spliced and used by a user, that is, the heat exchange effect is improved by increasing the number of the heat exchangers under the conditions that the water cooling temperature is constant and the water flow speed is constant, and the device is convenient to install and use during splicing and can be used after being placed.

Description

Technical Field

[0001] The invention belongs to the technical field of heat exchangers, and in particular relates to a heat exchanger for ships. Background Art

[0002] Heat exchangers are a common device on ships. When a heat exchanger is used, the user passes hot water and cold water into the heat exchanger respectively, and the heat in the hot water is transferred to the cold water through heat conduction.

[0003] Once the heat exchanger is installed and operated, its heat exchange capacity is mostly determined, that is, the heat exchange rate between hot water and cold water is relatively constant. To make the heat exchange more thorough, either increase the number of heat exchangers or circulate hot water into the heat exchanger. On a ship, circulating hot water into the heat exchanger requires rearranging and installing the pipelines, which is difficult when the ship is sailing, especially when sailing at sea; and the traditional way of splicing heat exchangers has problems such as inconvenient splicing and easy leakage of connecting pipes. For this reason, this application proposes a heat exchanger for ships. Summary of the invention

[0004] In order to solve the problems raised in the above background technology, the present invention provides the following technical solutions: A heat exchanger for a ship, comprising a first shell and a second shell, wherein pipes are arranged in an S shape, and metal fins are fixedly connected to the outside of the pipes.

[0005] One end of the pipe in the first shell is an inlet, and the other end is a first outlet and a first connecting pipe. A cushion block is fixedly connected to the upper end of the first shell, and the second shell is pressed on the cushion block. The first connecting pipe passes through the cushion block. One end of the pipe in the second shell is a second connecting pipe, and the other end is a second outlet. The first connecting pipe and the second connecting pipe can be connected to each other.

[0006] The first connecting tube and the second connecting tube are both fixedly connected with sleeves, a slot is provided on the first connecting tube, an insert block is fixedly connected to the end of the second connecting tube, and the insert block is inserted into the slot, so that the first connecting tube is connected with the second connecting tube.

[0007] A cam is arranged in the cushion block, and a toggle rod is inserted in the cushion block. The toggle rod can move up and down. When the second shell is placed on the first shell, the toggle rod can be pressed downward. In the process of the toggle rod moving downward, the cam can first slide to the upper side of the sleeve and then rotate. In the process of the cam rotating, the distal end of the cam can be pressed on the sleeve to tightly connect the first connecting tube with the second connecting tube.

[0008] The second connecting pipe passes through the side wall of the second shell, and a first spring is arranged in the second shell. The first spring is sleeved outside the second connecting pipe, and the second connecting pipe is connected to the pipeline in the second shell through a hose so that the second connecting pipe can move up and down.

[0009] Preferably, a rotating shaft is rotatably provided in the cushion block, the rotating shaft is connected to the cam, and a rectangular rod is fixed on the rotating shaft, a rectangular groove is opened on the cam, and the rectangular rod is inserted into the rectangular groove, so that when the rotating shaft rotates, the cam can rotate accordingly, and a third spring is provided in the rectangular groove.

[0010] Preferably, a top block is provided on one side of the cam, a first rotating rod is hingedly connected to a side of the top block away from the cam, a second rotating rod is hingedly connected to an end of the first rotating rod away from the top block, an end of the second rotating rod away from the first rotating rod is hingedly connected to a cushion block, a fixing rod is fixedly connected to the toggle rod, when the toggle rod moves downward, the fixing rod presses the connection between the first rotating rod and the second rotating rod downward to push the cam, and the fixing rod is made of elastic material, when the first rotating rod and the second rotating rod are rotated to the extreme position, the fixing rod can bend and pass over the first rotating rod and the second rotating rod.

[0011] Preferably, the first rotating rod and the second rotating rod form a support unit, the support unit has a hinge point, the fixed rod can contact the hinge point, and when the cam is located on one side of the sleeve, the inner angle of the support unit is a first inner angle, and when the cam extends above the sleeve, the support unit passes the straight shape and has a second inner angle, and the second inner angle is greater than the first inner angle.

[0012] Preferably, a toggle gear is fixedly connected to the rotating shaft, and a first rack is arranged on the toggle rod, and the first rack can cooperate with the toggle gear to make the rotating shaft rotate.

[0013] Preferably, a first control screw is provided on the first connecting tube, the first control screw is inserted into the first connecting tube, and the two are threadedly matched, and the first control screw is used to control the opening and closing of the first connecting tube, an extension rod is fixedly connected to the lower end of the toggle rod, a second rack is provided on the extension rod, and a first gear is provided on the first control screw, the second rack cooperates with the first gear, so that when the toggle rod moves downward, the first control screw rotates accordingly to open the first connecting tube, and a torsion spring is also sleeved outside the first control screw.

[0014] Preferably, the lower end of the toggle rod is fixedly connected to two single teeth, each single tooth is fixedly connected to a fixing rod, and a second spring is disposed on the outer sleeve of the toggle rod.

[0015] Preferably, a third rack is also provided in the pad block, a second control screw is provided on the first outlet, the first outlet is threadedly matched with the second control screw, and a second gear is provided at the end of the second control screw, and the second gear is matched with the third rack to control the opening and closing of the first outlet.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] When the device is implemented, it is convenient for users to splice the first shell and the second shell for use, that is, when the water cooling temperature is constant and the water flow rate is constant, the heat exchange effect is improved by increasing the number of heat exchangers. Moreover, when the device is spliced, it is easy to install and use, and can be used after being placed, abandoning the traditional manual control valve form. After the second shell is placed on the first shell, the pipeline can be opened / closed, which further facilitates the user's use. In order to meet the user's further needs, the scheme can also be set to a modular design, that is, a third shell, a fourth shell, etc. can also be provided. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0019] Figure 1 It is a schematic diagram of the structure of the present invention as a whole;

[0020] Figure 2 It is a schematic diagram of the connection structure of the first connecting pipe, the second connecting pipe and the hose of the present invention;

[0021] Figure 3 It is a schematic diagram of the internal structure of the spacer block of the partition of the present invention;

[0022] Figure 4 For the present invention Figure 3 A schematic diagram of the enlarged structure at A in the middle;

[0023] Figure 5 It is an enlarged structural schematic diagram of the cam of the present invention;

[0024] Figure 6 It is a schematic diagram of the structure of one side of the cam of the present invention;

[0025] Figure 7 It is a three-dimensional structural schematic diagram of the cam of the present invention;

[0026] Figure 8 It is a schematic diagram of the matching structure of the cam and the rotating shaft of the present invention;

[0027] Fig. 9It is an enlarged structural schematic diagram of the toggle lever of the present invention;

[0028] Fig.10 It is a schematic diagram of the matching structure between the first outlet and the cushion block of the present invention.

[0029] In the figure: 1. first shell; 2. second shell; 3. pipeline; 4. metal fin; 5. inlet; 6. first outlet; 7. first connecting pipe; 8. second connecting pipe; 9. hose; 10. first spring; 11. second outlet; 12. cushion block; 13. toggle rod; 14. second spring; 15. cam; 16. rotating shaft; 17. extension rod; 18. first control screw; 19. torsion spring; 20. rectangular rod; 21. third spring; 22. top block; 23. toggle gear; 24. first rack; 25. rectangular groove; 26. first rotating rod; 27. second rotating rod; 28. fixed rod; 29. ​​second rack; 30. third rack; 31. second control screw. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0031] Depend on Figure 1-10 The present invention discloses a heat exchanger for a ship, comprising a first shell 1 and a second shell 2, wherein a pipe 3 is arranged in the first shell 1 and the second shell 2, the pipe 3 is arranged in an S shape, and a metal fin plate 4 is fixedly connected to the outside of the pipe 3.

[0032] When this solution is implemented, hot water circulates in the pipe 3, and cold water flows into the first shell 1 and the second shell 2. Heat exchange is performed through the pipe 3 and the metal fin plate 4, and the arrangement of the metal fin plate 4 can accelerate the heat exchange efficiency.

[0033] One end of the pipe 3 in the first shell 1 is an inlet 5, and the other end thereof is a first outlet 6 and a first connecting pipe 7. Hot water can be introduced into the pipe 3 through the inlet 5, and the first outlet 6 and the first connecting pipe 7 are both water outlets of the pipe 3. A cushion block 12 is fixedly connected to the upper end of the first shell 1, and the second shell 2 is pressed on the cushion block 12. The first connecting pipe 7 passes through the cushion block 12. One end of the pipe 3 in the second shell 2 is a second connecting pipe 8, and the other end thereof is a second outlet 11. The first connecting pipe 7 and the second connecting pipe 8 can be connected to each other.

[0034] When the first shell 1 is used alone, hot water enters through the inlet 5 and is discharged through the first outlet 6. When the first shell 1 is spliced ​​with the second shell 2, hot water enters through the inlet 5, enters the second connecting pipe 8 through the first connecting pipe 7, and is finally discharged from the second outlet 11. The use of the cushion block 12 can prevent direct contact between the first shell 1 and the second shell 2, and the use of the cushion block 12 can also facilitate the alignment of the second shell 2 with the first shell 1 during installation.

[0035] Of course, a cold water inlet and a cold water outlet are also provided on the first shell 1 and the second shell 2, respectively, which are not described in alignment in the drawings of the present application.

[0036] The first connecting tube 7 and the second connecting tube 8 are both fixedly connected with sleeves, a slot is provided on the first connecting tube 7, an insert is fixedly connected to the end of the second connecting tube 8, and the insert is inserted into the slot to connect the first connecting tube 7 with the second connecting tube 8. The use of the insert and the slot can ensure the sealing of the connection between the first connecting tube 7 and the second connecting tube 8, ensuring that there will be no water leakage when they are connected. A layer of sealing gasket can also be provided in the slot.

[0037] A cam 15 is arranged in the cushion block 12, and a toggle rod 13 is inserted into the cushion block 12. The toggle rod 13 can move up and down. When the second housing 2 is placed on the first housing 1, the toggle rod 13 can be pressed downward. During the downward movement of the toggle rod 13, the cam 15 can first slide toward the upper side of the sleeve and then rotate. During the rotation of the cam 15, the distal end of the cam 15 can be pressed on the sleeve to tightly connect the first connecting tube 7 and the second connecting tube 8.

[0038] During installation, the second shell 2 is placed on the first shell 1. Due to the use of the gasket 12, the position of the second shell 2 can be limited. When the second shell 2 is pressed on the first shell 1, the toggle rod 13 can be pressed downward by the second shell 2. At this time, the cam 15 is pushed to the top of the sleeve, and then the cam 15 rotates and presses on the sleeve, so that the first connecting tube 7 and the second connecting tube 8 are tightly connected, thereby ensuring the sealing of the connection between the first connecting tube 7 and the second connecting tube 8.

[0039] The second connecting tube 8 passes through the side wall of the second shell 2, and a first spring 10 is arranged in the second shell 2. The first spring 10 is sleeved outside the second connecting tube 8, and the second connecting tube 8 is connected to the pipe 3 in the second shell 2 through a hose 9 so that the second connecting tube 8 can move up and down. The use of the hose 9 and the first spring 10 enables the second connecting tube 8 to have the function of moving up and down, so that the first connecting tube 7 and the second connecting tube 8 can be more closely connected.

[0040] A rotating shaft 16 is rotatably provided in the cushion block 12, the rotating shaft 16 is connected to the cam 15, and a rectangular rod 20 is fixed to the rotating shaft 16. A rectangular groove 25 is opened on the cam 15, and the rectangular rod 20 is inserted into the rectangular groove 25, so that when the rotating shaft 16 rotates, the cam 15 can rotate accordingly, and a third spring 21 is provided in the rectangular groove 25.

[0041] The use of the rectangular rod 20 and the rectangular groove 25 can ensure that when the device is in use, the cam 15 can slide along the rotating shaft 16, and when the rotating shaft 16 rotates, the cam 15 can rotate accordingly. The cam 15 is a disc structure, and the axes of the rotating shaft 16 and the cam 15 are located on different straight lines. In the initial position, the rotating shaft 16 is closer to the lower end of the cam 15, and the rotating shaft 16 is farther (distal) from the upper end of the cam 15. Therefore, when the cam 15 extends above the sleeve, the cam 15 does not contact the sleeve. After the cam 15 rotates, the surface of the cam 15 can be pressed on the sleeve, thereby pressing the second connecting tube 8 downward, and ensuring the tightness of the connection between the first connecting tube 7 and the second connecting tube 8.

[0042] In order to enable the cam 15 to slide to the top of the sleeve, the following technical solution is provided: a top block 22 is provided on one side of the cam 15, a first rotating rod 26 is hingedly connected to a side of the top block 22 away from the cam 15, a second rotating rod 27 is hingedly connected to an end of the first rotating rod 26 away from the top block 22, an end of the second rotating rod 27 away from the first rotating rod 26 is hingedly connected to the cushion block 12, a fixing rod 28 is fixedly connected to the toggle rod 13, when the toggle rod 13 moves downward, the fixing rod 28 presses the connection between the first rotating rod 26 and the second rotating rod 27 downward to push the cam 15, and the fixing rod 28 is made of elastic material, when the first rotating rod 26 and the second rotating rod 27 are rotated to the extreme position, the fixing rod 28 can bend and pass over the first rotating rod 26 and the second rotating rod 27.

[0043] The first rotating rod 26 and the second rotating rod 27 form a support unit, which has a hinge point. The fixed rod 28 can contact the hinge point, and when the cam 15 is located on one side of the sleeve, the inner angle of the support unit is a first inner angle. When the cam 15 extends above the sleeve, the support unit passes the straight state and has a second inner angle, and the second inner angle is greater than the first inner angle.

[0044] As shown in the figure, the state of the first rotating rod 26 and the second rotating rod 27, in this state, the cam 15 is already located above the sleeve. At this time, due to the abutment between the first rotating rod 26 and the top block 22 at the hinged position, the first rotating rod 26 can no longer continue to rotate, that is, the cam 15 is pushed by the top block 22 and maintains the state shown in the figure. The top block 22 and the cam 15 are only in contact with each other but not connected to each other. Therefore, when the cam 15 is moved by the rotating shaft 16, the cam 15 can rotate.

[0045] When the second shell 2 is placed on the first shell 1, the hinge point of the first rotating rod 26 and the second rotating rod 27 is located above its horizontal position. As the toggle rod 23 moves downward, the fixed rod 28 on the toggle rod 13 can press on the first rotating rod 26 or the second rotating rod 27, thereby causing it to rotate downward to reach the position shown in the figure. After reaching this position, the first rotating rod 26 and the second rotating rod 27 can no longer continue to rotate downward, and the fixed rod 28 is elastic and can bend. At this time, as the toggle rod 13 continues to move downward, the fixed rod 28 can pass over the first rotating rod 26 and the second rotating rod 27, and the first rotating rod 26 and the second rotating rod 27 can also maintain the state shown in the figure.

[0046] A toggle gear 23 is fixedly connected to the rotating shaft 16 , and a first rack 24 is provided on the toggle lever 13 . The first rack 24 can cooperate with the toggle gear 23 to rotate the rotating shaft 16 .

[0047] After the first rotating rod 26 and the second rotating rod 27 are moved to the positions shown in the figure, the toggle rod 13 can continue to move downward. At this time, the first rack 24 can toggle the toggle gear 23, thereby rotating the shaft 16, that is, the cam 15 rotates, until the cam 15 tightly presses the sleeve.

[0048] In some optional embodiments, the following technical solutions are also included: a first control screw 18 is provided on the first connecting tube 7, the first control screw 18 is inserted into the first connecting tube 7, and the two are threadedly matched, and the first control screw 18 is used to control the opening and closing of the first connecting tube 7, an extension rod 17 is fixedly connected to the lower end of the toggle rod 13, a second rack 29 is provided on the extension rod 17, a first gear is provided on the first control screw 18, the second rack 29 cooperates with the first gear, so that when the toggle rod 13 moves downward, the first control screw 18 rotates accordingly to open the first connecting tube 7, and a torsion spring 19 is also sleeved outside the first control screw 18.

[0049] That is to say, the first control screw 18 can control the opening and closing of the first connecting tube 7. When the cam 15 is pressed on the sleeve, the first connecting tube 7 is tightly connected to the second connecting tube 8, and then the toggle rod 13 can continue to move downward, thereby toggling the first control screw 18, so that the first connecting tube 7 is in a state of passage. In order to ensure the stability of the cam 15, the material of the first rack 24 is also made of elastic material, that is, after the cam 15 is tightly pressed on the sleeve, as the toggle rod 13 continues to move downward, the teeth on the first rack 24 can bend and pass over the toggle gear 23, thereby preventing the toggle gear 23 from reversing.

[0050] The lower end of the toggle lever 13 is fixed with two single teeth, each of which is fixed with a fixed rod 28, and a second spring 14 is disposed on the outer sleeve of the toggle lever 13. When the second housing 2 is removed from the first housing 1, the toggle lever 13 can be ejected upward under the action of the second spring 14, and during the process, the fixed rod 28 toggles the first rotating rod 26 and the second rotating rod 27 from bottom to top, so that the cam 15 moves to one side of the sleeve, and the use of the third spring 21 can further ensure that the cam 15 can be reset.

[0051] In some embodiments, a third rack 30 is further provided in the cushion block 12, a second control screw 31 is provided on the first outlet 6, the first outlet 6 is threadedly matched with the second control screw 31, and a second gear is provided at the end of the second control screw 31, and the second gear cooperates with the third rack 30 to control the opening and closing of the first outlet 6. After the cam 15 is pressed on the sleeve, as the second housing 2 is pressed on the cushion block 12, the second housing 2 can also be pressed on the third rack 30, so that the second control screw 31 can rotate, and the first outlet 6 is closed.

[0052] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0053] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A heat exchanger for a ship, comprising a first shell (1) and a second shell (2), characterized in that: The first shell (1) and the second shell (2) are both provided with a pipe (3), the pipe (3) is arranged in an S shape, and a metal fin plate (4) is fixedly connected to the outside of the pipe (3). One end of the pipe (3) located in the first shell (1) is an inlet (5), and the other end thereof is a first outlet (6) and a first connecting pipe (7). A cushion block (12) is fixedly connected to the upper end of the first shell (1), the second shell (2) is pressed on the cushion block (12), the first connecting pipe (7) passes through the cushion block (12), one end of the pipe (3) in the second shell (2) is a second connecting pipe (8), and the other end thereof is a second outlet (11), the first connecting pipe (7) and the second connecting pipe (8) can be connected to each other, The first connecting tube (7) and the second connecting tube (8) are both fixedly connected with sleeves, a slot is provided on the first connecting tube (7), an insert block is fixedly connected to the end of the second connecting tube (8), and the insert block is inserted into the slot, so that the first connecting tube (7) and the second connecting tube (8) are connected. A cam (15) is arranged in the cushion block (12), and a toggle rod (13) is inserted into the cushion block (12). The toggle rod (13) can move up and down. When the second housing (2) is placed on the first housing (1), the toggle rod (13) can be pressed downward. During the downward movement of the toggle rod (13), the cam (15) can first slide toward the upper side of the sleeve and then rotate. During the rotation of the cam (15), the distal end of the cam (15) can press on the sleeve to tightly connect the first connecting tube (7) and the second connecting tube (8). The second connecting tube (8) passes through the side wall of the second outer shell (2), and a first spring (10) is arranged inside the second outer shell (2). The first spring (10) is sleeved outside the second connecting tube (8), and the second connecting tube (8) is connected to the pipe (3) inside the second outer shell (2) through a hose (9), so that the second connecting tube (8) can move up and down.

2. A heat exchanger for a ship according to claim 1, characterized in that: A rotating shaft (16) is rotatably arranged in the cushion block (12), the rotating shaft (16) is connected to the cam (15), a rectangular rod (20) is fixedly connected to the rotating shaft (16), a rectangular groove (25) is provided on the cam (15), the rectangular rod (20) is inserted into the rectangular groove (25), so that when the rotating shaft (16) rotates, the cam (15) can rotate accordingly, and a third spring (21) is arranged in the rectangular groove (25).

3. A heat exchanger for a ship according to claim 2, characterized in that: A top block (22) is provided on one side of the cam (15), and a first rotating rod (26) is hingedly connected to a side of the top block (22) away from the cam (15); a second rotating rod (27) is hingedly connected to an end of the first rotating rod (26) away from the top block (22); an end of the second rotating rod (27) away from the first rotating rod (26) is hingedly connected to the cushion block (12); a fixing rod (28) is fixedly connected to the toggle rod (13); when the toggle rod (13) moves downward, the fixing rod (28) presses the connection between the first rotating rod (26) and the second rotating rod (27) downward to push the cam (15); the fixing rod (28) is made of elastic material; when the first rotating rod (26) and the second rotating rod (27) rotate to the limit position, the fixing rod (28) can bend and pass over the first rotating rod (26) and the second rotating rod (27).

4. A heat exchanger for a ship according to claim 3, characterized in that: The first rotating rod (26) and the second rotating rod (27) form a support unit, and a hinge point is provided in the support unit. The fixed rod (28) can contact the hinge point, and when the cam (15) is located on one side of the sleeve, the inner angle of the support unit is a first inner angle, and when the cam (15) extends above the sleeve, the support unit exceeds the straight state and has a second inner angle, and the second inner angle is greater than the first inner angle.

5. A heat exchanger for a ship according to claim 4, characterized in that: A toggle gear (23) is fixedly connected to the rotating shaft (16), and a first rack (24) is arranged on the toggle rod (13). The first rack (24) can cooperate with the toggle gear (23) to make the rotating shaft (16) rotate.

6. A heat exchanger for a ship according to claim 5, characterized in that: A first control screw (18) is arranged on the first connecting tube (7), the first control screw (18) is inserted into the first connecting tube (7), and the two are threadedly matched, and the first control screw (18) is used to control the opening and closing of the first connecting tube (7), an extension rod (17) is fixedly connected to the lower end of the toggle rod (13), a second rack (29) is arranged on the extension rod (17), a first gear is arranged on the first control screw (18), the second rack (29) cooperates with the first gear, so that when the toggle rod (13) moves downward, the first control screw (18) rotates accordingly to open the first connecting tube (7), and a torsion spring (19) is also sleeved outside the first control screw (18).

7. A heat exchanger for a ship according to claim 6, characterized in that: The lower end of the toggle rod (13) is fixedly connected to two single teeth, each of which is fixedly connected to a fixing rod (28), and a second spring (14) is disposed on the outer sleeve of the toggle rod (13).

8. A heat exchanger for a ship according to claim 3, characterized in that: A third rack (30) is also provided in the cushion block (12), a second control screw (31) is provided on the first outlet (6), the first outlet (6) and the second control screw (31) are threadedly matched, and a second gear is provided at the end of the second control screw (31), and the second gear cooperates with the third rack (30) to control the opening and closing of the first outlet (6).

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