Depressurization structure of condenser collecting pipe

Abstract

The utility model relates to the technical field of collecting pipe depressurization, and discloses a depressurization structure of a condenser collecting pipe, which comprises a collecting pipe main body, the outer part of the collecting pipe main body is uniformly connected with shunt pipes, one end of the collecting pipe main body is sleeved with a connecting sleeve, and the connecting sleeve and the collecting pipe main body are mutually welded; and a pressure relief head is mounted at one end of the connecting sleeve. Through cooperation of the spring, the movable sleeve plate, the pressure relief head and the like, high-pressure liquid impact in the collecting pipe body can flow into the pressure relief head through the pressure reduction channel by utilizing the mobility of the pressure reduction piston under high-pressure impact, so that communication is generated between the pressure relief head and the collecting pipe body to balance pressure, and the pressure relief effect is improved. The purpose of depressurizing the interior of the collecting pipe body is achieved, and by means of the effect of the one-way circulation pipe, after the depressurizing piston is reset, liquid temporarily stored in the pressure relief head can flow back into the collecting pipe body again.

Description

Technical Field

[0001] The utility model relates to the technical field of header pressure reduction, in particular to a pressure reduction structure of a condenser header. Background Art

[0002] After the high-temperature liquefied gas refrigerant enters the condenser, in order to improve the heat dissipation effect and reduce the pipe resistance of the pipeline, it is generally designed to be cooled and dissipated in 2-3 diversions. After forming a low-temperature and high-pressure liquid, it will enter a header together. In order to reduce the pipeline pressure at the confluence of the two, the header can be depressurized;

[0003] Chinese patent authorization announcement number CN218955564U discloses a manifold structure of a condenser, including a manifold body, a manifold connecting pipe is arranged on the top of the manifold body, a reinforcement component is arranged between the manifold body and the manifold connecting pipe, a pressure reducing component is arranged on the top of the manifold connecting pipe, and the pressure reducing component includes a partition, a branch pipeline and a pressure relief component. Each branch pipeline is divided separately, which can effectively prevent the gas or liquid inside the branch pipeline from colliding inside the manifold connecting pipe after entering the manifold connecting pipe, thereby effectively preventing the excessive pressure inside the manifold connecting pipe. The above-mentioned prior art solution has the following shortcomings: although the pressure in the pipe is released outward through the pressure relief hole in the manifold through the pressure relief component, as the pressure is balanced, the piston is reset to block the pressure relief hole, and the liquid after the pressure relief cannot be traced back to the manifold, thereby causing the loss of coolant, so there is a certain room for improvement. Utility Model Content

[0004] The utility model aims to provide a pressure reducing structure of a condenser header to solve the problem that the existing header is not easy to reflux the pressure-relieved liquid proposed in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a pressure reducing structure of a condenser header, comprising a header body, the outside of the header body is evenly connected with a shunt pipe, one end of the header body is sleeved with a connecting sleeve, and the connecting sleeve and the header body are welded to each other, one end of the connecting sleeve is installed with a pressure relief head, and the bottom end of the pressure relief head is communicated with the top end of the header body, the inner cavity of the pressure relief head is a hemispherical structure, and the diameter of the hemispherical structure is larger than the diameter of the header body, a guide rod is installed at one end of the pressure relief head away from the header body, and stop plates are sleeved at both ends of the guide rod, a pressure reducing mechanism is sleeved between the two stop plates, and the bottom end of the pressure reducing mechanism extends to the inside of the header body to temporarily block one end of the header body, and a spring is installed at the other end of the pressure reducing mechanism, and one end of the spring is connected to the top end of the pressure relief head;

[0006] The pressure reducing mechanism includes a movable sleeve plate sleeved on the outside of the guide rod, and the movable sleeve plate is located between two stop plates, connecting rods are evenly installed on both sides of the bottom end of the movable sleeve plate, and the bottom end of the connecting rod is connected to a pressure reducing piston, and the pressure reducing piston is located inside the collecting pipe body, the outer diameter of the pressure reducing piston is matched with the inner diameter of the collecting pipe body, the top end of the pressure reducing piston is provided with a groove, and the inside of the groove is penetrated by a one-way flow pipe, the bottom end of the one-way flow pipe penetrates to the outside of the bottom end of the pressure reducing piston, and the inside of the pressure reducing piston is evenly provided with pressure reducing channels.

[0007] Preferably, the pressure reducing channel is bent inside the pressure reducing piston, and the inlet of the pressure reducing channel is located at the bottom end of the pressure reducing piston, while the outlet of the pressure reducing piston is located at the side of the pressure reducing piston.

[0008] Preferably, the pressure reducing channels are distributed in annular shapes at equal intervals inside the pressure reducing piston, and the inner diameter of the pressure reducing channels increases from the inlet to the outlet.

[0009] Preferably, a sealing plug is installed at the bottom end of the guide rod above the one-way circulation tube. When the pressure reducing piston is close to the stop plate at the upper end, the sealing plug is inserted into the interior of the one-way circulation tube for sealing, and at the same time, the outlet of the pressure reducing channel enters the interior of the pressure relief head.

[0010] Preferably, an air cushion is bonded to the inside of the collecting pipe body, and through holes are evenly arranged on the air cushion at positions corresponding to the diversion pipes, air intake pipes are installed on both sides of the air cushion, and one end of the air intake pipes extends to the outside of the collecting pipe body, and inflation mechanisms are arranged on both sides of the top of the pressure relief head to inflate the air cushion.

[0011] Preferably, the inflation mechanism includes an air cylinder installed on one side of the top of the pressure relief head, and a piston plate is installed at the bottom end of the air cylinder, a push rod is installed at the bottom end of the piston plate, and the bottom end of the push rod passes through the interior of the pressure relief head and is connected to one side of the top of the movable sleeve plate, a hose is installed at the top of one side of the air cylinder, and one end of the hose is connected to one end of the air inlet pipe.

[0012] Preferably, the interior of the gas cylinder is filled with an inert gas, and an air inlet valve is provided at the top of the gas cylinder, and the air inlet valve is in a normally closed state.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] (1) By means of the coordination of the spring, the movable sleeve and the pressure relief head, and by utilizing the mobility of the pressure relief piston under high pressure impact, the high pressure liquid impact inside the manifold body can flow to the inside of the pressure relief head through the pressure relief channel, thereby establishing a connection between the pressure relief head and the manifold body to balance the pressure and achieve the purpose of reducing the pressure inside the manifold body. In addition, by utilizing the function of the one-way flow pipe, the pressure relief piston can return the temporarily stored liquid inside the pressure relief head to the manifold body after resetting. In addition, by utilizing the special structure of the pressure relief head, the pressure resistance of the pressure relief head to the liquid impact is increased to prevent the pressure relief head from being deformed and damaged.

[0015] When the liquid in the shunt pipe impacts the inside of the manifold body, its high pressure can generate an upward impact force on the pressure relief head, and the structural characteristics of the pressure reduction channel are utilized to reduce the impact force of the liquid on the inside of the pressure reduction piston, thereby improving the structural strength of the pressure reduction piston;

[0016] (2) By utilizing the rise of the movable sleeve during pressure reduction, the piston plate is pushed upward, so that the inert gas inside the cylinder is concentrated inside the air cushion to enhance the expansion of the air cushion. The air cushion is utilized to reduce the impact of the liquid on the inner wall of the manifold body, thereby further improving the structural strength of the manifold body under high pressure and prolonging its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the cross-sectional three-dimensional structure of the pressure relief head of the utility model;

[0020] Figure 3 It is a three-dimensional structural diagram of the pressure reduction mechanism of the utility model;

[0021] Figure 4 It is a schematic diagram of the three-dimensional structure of the air cushion of the utility model.

[0022] Explanation of the reference numerals in the figure: 1. collecting pipe body; 2. diverter pipe; 3. pressure relief head; 4. connecting sleeve; 5. pressure reducing mechanism; 501. pressure reducing piston; 502. pressure reducing channel; 503. groove; 504. one-way flow pipe; 505. connecting rod; 506. movable sleeve plate; 6. guide rod; 7. spring; 8. inflation mechanism; 801. push rod; 802. air cylinder; 803. piston plate; 804. hose; 9. air cushion; 10. air inlet pipe; 11. sealing plug; 12. stop plate; 13. through hole. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-Figure 4 , the utility model provides an embodiment: a pressure reduction structure of a condenser header, comprising a header body 1;

[0025] An air cushion 9 is bonded inside the manifold body 1, and through holes 13 are evenly arranged on the air cushion 9 at positions corresponding to the shunt pipe 2. Inlet pipes 10 are installed on both sides of the air cushion 9, and one end of the inlet pipe 10 extends to the outside of the manifold body 1. Inflating mechanisms 8 are arranged on both sides of the top of the pressure relief head 3 to inflate the air cushion 9.

[0026] The inflation mechanism 8 includes an air cylinder 802 installed on one side of the top of the pressure relief head 3, and a piston plate 803 is installed at the bottom end of the air cylinder 802, a push rod 801 is installed at the bottom end of the piston plate 803, and the bottom end of the push rod 801 penetrates into the interior of the pressure relief head 3 and is connected to one side of the top of the movable sleeve plate 506, a hose 804 is installed at the top end of one side of the air cylinder 802, and one end of the hose 804 is connected to one end of the air intake pipe 10;

[0027] The interior of the gas cylinder 802 is filled with an inert gas, and an air inlet valve is provided at the top of the gas cylinder 802, and the air inlet valve is in a normally closed state;

[0028] Specifically, Figure 1 , Figure 4 As shown, when in use, the depressurized state inside the manifold body 1 is utilized to allow the inert gas inside the gas cylinder 802 to enter the inside of the air cushion 9, causing the air cushion 9 to further collide, thereby increasing the distance between the liquid and the inner wall of the manifold body 1, so as to reduce the direct impact of the liquid on the inner wall of the manifold body 1, thereby protecting the manifold body 1;

[0029] The outside of the manifold body 1 is evenly connected with the shunt pipe 2, one end of the manifold body 1 is sleeved with a connecting sleeve 4, and the connecting sleeve 4 and the manifold body 1 are welded to each other, one end of the connecting sleeve 4 is installed with a pressure relief head 3, and the bottom end of the pressure relief head 3 is communicated with the top of the manifold body 1, the inner cavity of the pressure relief head 3 is a hemispherical structure, and the diameter of the hemispherical structure is larger than the diameter of the manifold body 1, a guide rod 6 is installed at one end of the pressure relief head 3 away from the manifold body 1, and stop plates 12 are sleeved at both ends of the guide rod 6, a pressure reducing mechanism 5 is sleeved between the two stop plates 12, and the bottom end of the pressure reducing mechanism 5 extends to the inside of the manifold body 1 to temporarily block one end of the manifold body 1, and a spring 7 is installed at the other end of the pressure reducing mechanism 5, and one end of the spring 7 is connected to the top of the inside of the pressure relief head 3;

[0030] The pressure reducing mechanism 5 includes a movable sleeve plate 506 sleeved on the outside of the guide rod 6, and the movable sleeve plate 506 is located between the two stop plates 12, and connecting rods 505 are evenly installed on both sides of the bottom end of the movable sleeve plate 506, and the bottom end of the connecting rod 505 is connected to a pressure reducing piston 501, and the pressure reducing piston 501 is located inside the manifold body 1, and the outer diameter of the pressure reducing piston 501 is adapted to the inner diameter of the manifold body 1, and a groove 503 is opened at the top of the pressure reducing piston 501, and a one-way flow pipe 504 is penetrated inside the groove 503, and the bottom end of the one-way flow pipe 504 penetrates to the outside of the bottom end of the pressure reducing piston 501, and a pressure reducing channel 502 is evenly opened inside the pressure reducing piston 501;

[0031] The pressure reducing channel 502 is bent inside the pressure reducing piston 501, and the inlet of the pressure reducing channel 502 is located at the bottom end of the pressure reducing piston 501, while the outlet of the pressure reducing piston 501 is located on the side of the pressure reducing piston 501;

[0032] The pressure reducing channels 502 are distributed in an annular shape with equal spacing inside the pressure reducing piston 501, and the inner diameter of the pressure reducing channels 502 increases from the inlet to the outlet;

[0033] A sealing plug 11 is correspondingly installed at the bottom end of the guide rod 6 above the one-way flow pipe 504. When the pressure reducing piston 501 is close to the stop plate 12 at the upper end, the sealing plug 11 is inserted into the one-way flow pipe 504 to seal it, and at the same time, the outlet of the pressure reducing channel 502 enters the interior of the pressure relief head 3.

[0034] Specifically, Figure 1 , Figure 2 and Figure 3As shown, the special structure of the pressure reducing channel 502 is utilized during use to reduce the impact pressure of the liquid on the inner wall when flowing through, thereby improving the structural strength of the pressure reducing piston 501 and increasing its service life, and utilizing the function of the one-way flow pipe 504 so that after the pressure reduction is completed, the liquid in the pressure relief head 3 can flow back to the interior of the collecting pipe body 1.

[0035] Working principle: When the utility model is used, first, the low-temperature high-pressure liquid in the shunt pipe 2 enters the interior of the manifold body 1 and impacts the inner wall of the manifold body 1. When the pressure is too high, the pressure exerts an upward force on the pressure-reducing piston 501, causing the pressure-reducing piston 501 to move upward and compress the spring 7.

[0036] Secondly, due to the rise of the pressure reducing piston 501, the outlet of the pressure reducing channel 502 moves to the inside of the pressure relief head 3, so that the low-temperature high-pressure liquid can enter the inside of the pressure relief head 3 through the pressure reducing channel 502, so that the manifold body 1 is connected with the pressure relief head 3 to achieve the pressure reducing effect on the manifold body 1, and when the pressure reducing piston 501 rises, the sealing plug 11 closes the one-way flow pipe 504, and the pressure reducing piston 501 drives the movable sleeve plate 506 to rise, so that the push rod 801 drives the piston plate 803 to rise, so that the piston plate 803 transfers the inert gas inside the gas cylinder 802 to the air cushion 9, so as to achieve further expansion of the air cushion 9, so as to increase the distance between the liquid and the inner wall in the manifold body 1, and utilize the elastic structural characteristics of the air cushion 9 to alleviate the impact of the liquid, and further prevent the deformation and damage of the manifold body 1;

[0037] Finally, when the pressure in the manifold body 1 is balanced, the spring 7 is reset, so that the movable sleeve 506 drives the pressure reducing piston 501 to re-enter the interior of the manifold body 1, thereby causing the one-way flow tube 504 to move synchronously, so that the one-way flow tube 504 returns the liquid in the pressure relief head 3 to the interior of the manifold body 1.

[0038] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative labor.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A pressure reducing structure of a condenser header, comprising a header body (1), characterized in that: The outside of the manifold body (1) is evenly connected to a shunt pipe (2); one end of the manifold body (1) is sleeved with a connection sleeve (4), and the connection sleeve (4) and the manifold body (1) are welded to each other; one end of the connection sleeve (4) is installed with a pressure relief head (3), and the bottom end of the pressure relief head (3) is communicated with the top end of the manifold body (1); the inner cavity of the pressure relief head (3) is a hemispherical structure, and the diameter of the hemispherical structure is greater than the diameter of the manifold body (1); the pressure relief head (3) is ) is installed at one end of the interior of the collecting pipe body (1) away from the collecting pipe body (1), and stop plates (12) are sleeved at both ends of the exterior of the guide rod (6), a pressure reducing mechanism (5) is sleeved between the two stop plates (12), and the bottom end of the pressure reducing mechanism (5) extends to the interior of the collecting pipe body (1) to temporarily block one end of the collecting pipe body (1), and a spring (7) is installed at the other end of the pressure reducing mechanism (5), and one end of the spring (7) is connected to the top end of the interior of the pressure relief head (3); The pressure reducing mechanism (5) comprises a movable sleeve plate (506) sleeved on the outside of the guide rod (6), and the movable sleeve plate (506) is located between two stop plates (12), and connecting rods (505) are evenly installed on both sides of the bottom end of the movable sleeve plate (506), and the bottom end of the connecting rod (505) is connected to a pressure reducing piston (501), and the pressure reducing piston (501) is located inside the manifold body (1), and the outer diameter of the pressure reducing piston (501) is matched with the inner diameter of the manifold body (1), and the top end of the pressure reducing piston (501) is provided with a groove (503), and the inside of the groove (503) is penetrated by a one-way flow pipe (504), and the bottom end of the one-way flow pipe (504) is penetrated to the outside of the bottom end of the pressure reducing piston (501), and the inside of the pressure reducing piston (501) is evenly provided with a pressure reducing channel (502).

2. The pressure reducing structure of the condenser header according to claim 1, characterized in that: The pressure reducing channel (502) is bent inside the pressure reducing piston (501), and the inlet of the pressure reducing channel (502) is located at the bottom end of the pressure reducing piston (501), while the outlet of the pressure reducing piston (501) is located on the side of the pressure reducing piston (501).

3. The pressure reducing structure of a condenser header according to claim 1, characterized in that: The pressure reducing channels (502) are distributed in an annular shape with equal spacing inside the pressure reducing piston (501), and the inner diameter of the pressure reducing channels (502) increases from the inlet to the outlet.

4. The pressure reducing structure of a condenser header according to claim 1, characterized in that: A sealing plug (11) is correspondingly installed at the bottom end of the guide rod (6) above the one-way circulation tube (504). When the pressure reducing piston (501) is pressed against the stop plate (12) at the upper end, the sealing plug (11) is inserted into the inside of the one-way circulation tube (504) to seal it, and at the same time, the outlet of the pressure reducing channel (502) enters the inside of the pressure relief head (3).

5. The pressure reducing structure of a condenser header according to claim 1, characterized in that: An air cushion (9) is bonded to the interior of the manifold body (1), and through holes (13) are evenly arranged on the air cushion (9) at positions corresponding to the shunt pipes (2). Air intake pipes (10) are installed on both sides of the air cushion (9), and one end of the air intake pipe (10) extends to the outside of the manifold body (1). Inflating mechanisms (8) are arranged on both sides of the top of the pressure relief head (3) to inflate the air cushion (9).

6. The pressure reducing structure of the condenser header according to claim 5, characterized in that: The inflation mechanism (8) comprises an air cylinder (802) installed on one side of the top end of the pressure relief head (3), and a piston plate (803) is installed at the bottom end of the air cylinder (802), a push rod (801) is installed at the bottom end of the piston plate (803), and the bottom end of the push rod (801) passes through the interior of the pressure relief head (3) and is connected to one side of the top end of the movable sleeve (506), a hose (804) is installed at the top end of one side of the air cylinder (802), and one end of the hose (804) is connected to one end of the air intake pipe (10).

7. The pressure reducing structure of the condenser header according to claim 6, characterized in that: The interior of the gas cylinder (802) is filled with inert gas, and an air intake valve is provided at the top of the gas cylinder (802), and the air intake valve is in a normally closed state.

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