Connecting device for induction control components of heat exchanger, heat exchanger and air conditioner

Abstract

The present invention discloses a connection device for inductive control components of a heat exchanger, a heat exchanger and an air conditioner, and relates to the technical field of air conditioners. The connection device for inductive control components of the heat exchanger comprises a connection device body, wherein the connection device body is provided with a main line connected to the heat exchanger and at least two branches connected to the main line, and each inductive control component of the heat exchanger is connected to each branch. In this way, each inductive control component is connected to the heat exchanger through the connection device body, which saves the space required for installation and avoids the problem that the maintenance personnel step on the surface of the heat exchanger and step on the inductive control components, thereby damaging the inductive control components.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioners, and more specifically to a connection device for induction control components of a heat exchanger, a heat exchanger and an air conditioner. Background Art

[0002] Inductive control components, such as sensors, valve bodies, etc., play a very important role in mechanical equipment and electrical products.

[0003] Heat exchangers, such as evaporators and condensers, are all connected with inductive control components. For the inductive control components on the shell and tube evaporator of the chilled water air conditioning unit, they include safety valves, charging valves, pressure sensors, etc. When the refrigerant in the shell side of the shell and tube evaporator circulates for heat exchange, the pressure inside the shell side changes within a certain range. It is necessary to monitor the pressure inside the shell side through a pressure sensor, and it is also necessary to use a charging valve to evacuate or inject refrigerant into the shell side. When the pressure inside the shell side is too high, the pressure is released through a safety valve. In the prior art, the installation method of the inductive control components is usually to open a hole on the shell of the shell and tube evaporator, weld a threaded joint at the opening, and connect it to the shell and tube evaporator through the threaded joint. Since multiple inductive control components need to be connected to the shell of the shell and tube evaporator, the existing connection method requires a large installation space, which is not conducive to after-sales maintenance and the overall layout of the unit. Moreover, when the maintenance personnel are repairing, they step on the surface of the shell and tube evaporator, which is easy to step on the valve body and the pressure sensor, causing damage to the inductive control components.

[0004] Therefore, how to solve the problem in the prior art that the sensing control components on the surface of the shell and tube evaporator require a large space for installation and are easily damaged by maintenance personnel when repairing the shell and tube evaporator has become an important technical problem to be solved by technical personnel in this field. Summary of the invention

[0005] The object of the present invention is to provide a connection device for inductive control components of a heat exchanger, so as to solve the problem that the inductive control components on the surface of a shell and tube evaporator in the prior art require a large space for installation, and when the shell and tube evaporator is repaired, the inductive control components are easily stepped on by maintenance personnel, causing damage. The various technical effects that can be produced by the preferred technical solution among the various technical solutions provided by the present invention are described in detail below.

[0006] The present invention provides a connection device for inductively controlled components of a heat exchanger, comprising a connection device body, wherein the connection device body is provided with a main line connected to the heat exchanger and at least two branches connected to the main line, and each inductively controlled component of the heat exchanger is connected to each of the branches respectively.

[0007] Preferably, the connecting device body is provided with a protective plate for stepping on.

[0008] Preferably, all or part of the induction control components are arranged below the protective plate.

[0009] Preferably, the inductive control components include a pressure sensor and / or a safety valve and / or a filling valve.

[0010] Preferably, the inductive control components include a pressure sensor, a safety valve and a filling valve, the branch for connecting the safety valve is arranged at an end of the main line away from the heat exchanger, and the flow area of ​​the branch for connecting the safety valve is larger than the flow area of ​​the branch for connecting the filling valve and the branch for connecting the pressure sensor.

[0011] Preferably, the protective plate is arranged at an angle to reduce the accumulation of condensed water on the upper surface of the protective plate.

[0012] Preferably, the angle between the upper surface of the protective plate and the vertical direction is greater than 90° and less than 100°.

[0013] Preferably, the distance between the protective plate and the branch arranged below the protective plate is 70 mm to 100 mm.

[0014] Preferably, the thickness of the protective plate is 4 mm to 7 mm.

[0015] Preferably, the protective plate is made of steel.

[0016] The present invention also provides a heat exchanger, comprising a connecting device for the inductively controlled components of the heat exchanger, wherein the connecting device is the connecting device for the inductively controlled components of the heat exchanger described above.

[0017] Preferably, the heat exchanger is a shell and tube evaporator.

[0018] The present invention further provides an air conditioner, comprising a heat exchanger, wherein the heat exchanger is the above-mentioned heat exchanger.

[0019] In the technical solution provided by the present invention, the connection device of the inductive control components of the heat exchanger includes a connection device body, the connection device body is provided with a main line and at least two branches, the main line is connected to the heat exchanger, the branch lines are connected to the main line, and each inductive control component of the heat exchanger is connected to each branch. During installation, each inductive control component is first connected to the branch of the connection device, and then the main line of the connection device is connected to the heat exchanger. In this arrangement, each inductive control component is connected to the heat exchanger through the connection device body, which saves the space required for installation compared to the prior art in which each inductive control component is connected to the heat exchanger through a threaded joint, and prevents maintenance personnel from stepping on the surface of the heat exchanger and causing damage to the inductive control components. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention 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 only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 is a schematic diagram of the structure of a connection device for induction control components of a heat exchanger according to an embodiment of the present invention;

[0022] Figure 2 is a cross-sectional view of a connecting device in an embodiment of the present invention;

[0023] Figure 3 is a front view of a connecting device in an embodiment of the present invention;

[0024] Figure 4 is a side view of a connecting device in an embodiment of the present invention;

[0025] Figure 5 is a top view of the connecting device in an embodiment of the present invention.

[0026] Figure 1-Figure 5 middle:

[0027] 1-connecting device body, 2-main line, 3-branch line, 4-protection plate, 5-pressure sensor, 6-safety valve, 7-charging valve. DETAILED DESCRIPTION

[0028] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. 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 implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0029] The purpose of this specific embodiment is to provide a connection device for the inductive control components of a heat exchanger, so as to solve the problem in the prior art that the inductive control components on the surface of the shell and tube evaporator require a large space for installation, and when the shell and tube evaporator is repaired, the inductive control components are easily stepped on by maintenance personnel, causing damage.

[0030] The following is an explanation of the embodiments with reference to the accompanying drawings. In addition, the embodiments shown below do not limit the invention described in the claims. In addition, the entire contents of the configurations shown in the following embodiments are not limited to the solutions required as the invention described in the claims.

[0031] Please refer to Figure 1-Figure 5 In this embodiment, the connection device of the inductive control components of the heat exchanger includes a connection device body 1, and the connection device body 1 is provided with a main line 2 and at least two branches 3. The main line 2 is connected to the heat exchanger, and the branch 3 is connected to the main line 2. Each inductive control component of the heat exchanger is connected to each branch 3.

[0032] With such arrangement, after each inductive control component is connected to the branch line 3 of the connecting device, the main line 2 of the connecting device is connected to the heat exchanger. Each inductive control component is connected to the heat exchanger through the connecting device. Compared with the prior art in which each inductive control component is connected to the heat exchanger through a threaded joint, the space required for installation is saved, and it can also prevent maintenance personnel from stepping on the surface of the heat exchanger and causing damage to the inductive control components.

[0033] In the preferred solution of this embodiment, the connecting device body 1 is further provided with a stepping protective plate 4. With such a configuration, when the maintenance personnel inspect the heat exchanger, they step on the protective plate 4, which is convenient for the maintenance personnel to operate, and at the same time, it is prevented that the maintenance personnel step on the induction control components, thereby reducing the probability of damage to the induction control components.

[0034] Preferably, the inductive control components connected to the branch 3 of the connecting device are partially or completely arranged below the protective plate 4. That is, in some embodiments, all the inductive control components are arranged below the protective plate 4. Of course, in some other embodiments, some of the inductive control components may also be arranged below the protective plate 4.

[0035] With such arrangement, the protective plate 4 protects the inductive control components thereunder. When maintenance personnel inspect the heat exchanger, they step on the protective plate 4 to avoid damaging the inductive control components thereunder. Moreover, for the inductive control components arranged below the protective plate 4, such as the pressure sensor 5, the protective plate 4 above the inductive control components can prevent condensed water on the surface of the flasher and other components from dripping onto the pressure sensor 5, thereby eliminating safety hazards.

[0036] In this embodiment, the inductive control components include a pressure sensor 5 and / or a safety valve 6 and / or a charging valve 7. For the shell and tube evaporator in the heat exchanger, the shell side is filled with refrigerant. When the refrigerant circulates and exchanges heat, the pressure in the shell side will change. The pressure sensor 5 is used to monitor the pressure in the shell side, and the charging valve 7 is used to evacuate the shell side or charge the refrigerant into the shell side. When the pressure in the shell side is too high, the safety valve 6 is used to release the pressure.

[0037] In the preferred scheme of this embodiment, the inductive control components include a pressure sensor 5, a safety valve 6 and a filling valve 7. The safety valve 6, the filling valve 7 and the pressure sensor 5 are respectively connected to the connecting device body 1 through a branch 3, wherein the branch 3 for connecting the safety valve 6 is arranged at an end of the main line 2 away from the heat exchanger, and the flow area of ​​the branch 3 for connecting the safety valve 6 is larger than the flow area of ​​the branch 3 for connecting the filling valve 7 and the pressure sensor 5.

[0038] In this arrangement, the safety valve 6 is connected to the end of the main line 2 away from the heat exchanger. When the pressure in the shell side of the shell and tube evaporator is too high, it is convenient to relieve the pressure on the shell side of the shell and tube evaporator through the safety valve 6. Moreover, the flow area of ​​the branch 3 connected to the safety valve 6 is larger than the flow area of ​​the branch 3 connected to the charging valve 7 and the pressure sensor 5, which can make the pressure relief smoother.

[0039] In some embodiments, please refer to Figure 4 In order to reduce the retention of condensed water on the upper surface of the protective plate 4, the protective plate 4 is tilted. Specifically, the angle α between the upper surface of the protective plate 4 and the vertical direction is greater than 90° and less than 100°, and the angle α between the upper surface of the protective plate 4 and the vertical direction can be 91°, 92°, or 93°. Preferably, in this embodiment, the angle between the upper surface of the protective plate 4 and the vertical direction is 91°, so that the edge of the protective plate 4 is tilted downward, which is convenient for the condensed water to flow along the protective plate 4 and flow down from the edge of the protective plate 4. The tilt angle of the protective plate should not be too large to improve the safety factor when the maintenance personnel step on it.

[0040] In this embodiment, the protective plate 4 may include a first protective plate and a second protective plate, which are connected to each other and surround the main pipe 2 of the connecting device body 1, so that the main pipe 2 is located between the two. The protective plate 4 may be tilted in such a way that the upper surfaces of the first protective plate and the second protective plate are both planes, and the first protective plate and the second protective plate are both tilted downward with the connecting line of the two as the axis; or the perpendicular line of the connecting line of the two may be used as the dividing line, and the parts on both sides of the dividing line are tilted downward respectively.

[0041] In the preferred solution of this embodiment, the distance between the protective plate 4 and the branch 3 arranged below the protective plate 4 is 70 mm to 100 mm. With such a configuration, when the induction control components below the protective plate 4 need to be used, for example, when the refrigerant is filled into the shell through the filling valve 7 located below the protective plate 4, it is convenient to operate and prevent the protective plate 4 from affecting the operation. If the distance between the protective plate 4 and the branch 3 below it is too small, it is not convenient to operate, and if the distance is too large, it will affect the protective effect of the protective plate 4. Specifically, the distance between the protective plate 4 and the branch 3 below it can be 80 mm or 85 mm.

[0042] In this embodiment, the material of the protective plate 4 is steel, and the thickness of the protective plate 4 is between 4 mm and 7 mm. Preferably, the protective plate 4 is hot-rolled steel, and the thickness of the protective plate 4 is 5 mm or 6 mm. In this way, the mechanical strength of the protective plate 4 is high, and it can withstand the stepping of maintenance personnel during maintenance. At the same time, when a steel foreign object falls on the top of the protective plate 4, it can withstand the impact of the foreign object and is not easy to deform.

[0043] The following content specifically describes the connection device of the inductive control components of the heat exchanger in combination with the above-mentioned embodiments. In this embodiment, the connection device of the inductive control components includes a connection device body 1, and the connection device body 1 is provided with a main line 2 and at least two branches 3 connected to the main line 2. The main line 2 is connected to the heat exchanger, and each inductive control component is connected to each branch 3. The inductive control components include a pressure sensor 5, a safety valve 6 and a charging valve 7. The branch 3 for connecting the pressure sensor 5 and the charging valve 7 is located below the protective plate 4, and the branch 3 for connecting the safety valve 6 is located at one end of the main line 2 away from the heat exchanger, and the flow area of ​​the branch 3 for connecting the safety valve 6 is larger than the flow area of ​​the branch 3 for connecting the pressure sensor 5 and the charging valve 7. A protective plate 4 for stepping on is also provided on the connecting device body 1. The angle between the upper surface of the protective plate 4 and the vertical direction is 91°. The distance between the protective plate 4 and the branch 3 below it is 70mm to 100mm. The material of the protective plate 4 is hot-rolled steel and the thickness is 5mm.

[0044] In this way, multiple inductive control components are connected to the connecting device, and then the connecting device is connected to the heat exchanger. The multiple inductive control components are connected to the heat exchanger through the connecting device, and the required installation space is reduced. At the same time, it can prevent maintenance personnel from stepping on the inductive control components and prevent the inductive control components from being damaged due to stepping on.

[0045] The present invention further provides a heat exchanger, including a connecting device for inductive control components of the heat exchanger, and the connecting device is the connecting device for inductive control components in the above embodiment. With such a configuration, in the heat exchanger provided by this embodiment, a plurality of inductive control components are connected to the heat exchanger through the connecting device, which reduces the installation space of the inductive control components and can also prevent the inductive control components from being damaged by being stepped on. The derivation process of this beneficial effect is generally similar to the derivation process of the beneficial effect brought about by the connecting device for inductive control components of the above heat exchanger, so it will not be repeated herein.

[0046] In this embodiment, the heat exchanger is a shell and tube evaporator, a plurality of induction control components are connected to the shell and tube evaporator via a connecting device, and a main line 2 of the connecting device is connected to the shell side of the shell and tube evaporator.

[0047] The present invention further provides an air conditioner, comprising a heat exchanger, which is the heat exchanger in the above embodiment. With such a configuration, in the air conditioner provided in this embodiment, each induction control component that needs to be connected to the heat exchanger of the air conditioner is connected to the heat exchanger of the air conditioner through a connecting device, which saves installation space and can also prevent maintenance personnel from stepping on the induction control components and causing damage. The derivation process of this beneficial effect is generally similar to the derivation process of the beneficial effect brought about by the connecting device and heat exchanger of the above-mentioned induction control components, so it will not be repeated in this article.

[0048] It is understood that the same or similar parts in the above embodiments can refer to each other, and the content not described in detail in some embodiments can refer to the same or similar content in other embodiments. The multiple solutions provided by the present invention include the basic solution itself, which are independent of each other and do not restrict each other, but they can also be combined with each other without conflict to achieve multiple effects together.

[0049] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A connection device for induction control components of a heat exchanger, characterized in that: The invention comprises a connecting device body (1), wherein the connecting device body (1) is provided with a main line (2) connected to the heat exchanger and at least two branch lines (3) connected to the main line (2), and each induction control component of the heat exchanger is connected to each branch line (3); The inductive control components include a pressure sensor (5) and / or a safety valve (6) and / or a charging valve (7); The connecting device body (1) is provided with a protective plate (4) for stepping on; The inductive control components include a pressure sensor (5), a safety valve (6), and a charging valve (7); the branch (3) for connecting the safety valve (6) is arranged at an end of the main pipeline (2) away from the heat exchanger, and the flow area of ​​the branch (3) for connecting the safety valve (6) is larger than the flow areas of the branch (3) for connecting the charging valve (7) and the pressure sensor (5); The protective plate (4) is arranged at an angle to reduce the amount of condensed water remaining on the upper surface of the protective plate (4).

2. The connection device according to claim 1, characterized in that All or part of the induction control components are arranged below the protective plate (4).

3. The connection device according to claim 1, characterized in that The angle between the upper surface of the protective plate (4) and the vertical direction is greater than 90° and less than 100°.

4. The connection device according to claim 2, characterized in that The distance between the protective plate (4) and the branch (3) arranged below the protective plate (4) is 70 mm to 100 mm.

5. The connection device according to claim 1, characterized in that: The thickness of the protective plate (4) is 4 mm to 7 mm.

6. The connection device according to claim 1, characterized in that The material of the protective plate (4) is steel.

7. A heat exchanger, characterized in that: A connecting device for inductively controlled components of a heat exchanger is provided, wherein the connecting device is a connecting device for inductively controlled components of a heat exchanger as claimed in any one of claims 1 to 6.

8. The heat exchanger according to claim 7, characterized in that The heat exchanger is a shell and tube evaporator.

9. An air conditioner, characterized in that: It comprises a heat exchanger, and the heat exchanger is the heat exchanger as described in any one of claims 7-8.

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