Heat source switching device of intermediate heat exchanger waterway of two-stage high-temperature heat pump unit

Abstract

The utility model discloses a heat source switching device of an intermediate heat exchanger waterway of a two-stage high-temperature heat pump unit, which comprises a valve body, flanges are fixedly connected to two sides of the valve body, a first connecting block is arranged at the top of the valve body, and a second connecting block is arranged at the top of the first connecting block. Bolts are arranged among the valve body, the first connecting block and the second connecting block, a rotating rod is rotationally connected into the second connecting block, a rotating disc is arranged at the top of the rotating rod, a mounting block is rotationally connected to the position, located in the valve body, of the outer side of the rotating rod, and a valve plate is arranged at the bottom of the rotating rod. According to the heat source switching device of the intermediate heat exchanger waterway of the two-stage high-temperature heat pump unit, the limiting assembly is arranged and can limit the rotation range of the rotary disc, so that the rotary disc is located at a fixed position, unauthorized personnel or operators are prevented from accidentally moving the rotary disc, and therefore the risk of misoperation can be reduced, and the working efficiency is improved. And accidental system damage or wrong heat source switching can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of heat source switching devices, in particular to a heat source switching device for an intermediate heat exchanger water circuit of a two-stage high-temperature heat pump unit. Background Art

[0002] The heat source switching device of the intermediate heat exchanger water circuit of the two-stage high-temperature heat pump unit is a device used to switch different heat sources as needed during the operation of the heat pump to ensure that the heat pump can always operate normally and achieve the expected thermal effect. The heat source switching device will include a valve, which is used to control the flow direction and speed of the fluid to achieve switching or adjustment between different heat sources.

[0003] When using the valve of a traditional heat source switching device, the operator directly turns the dial to switch the valve. It is generally used in industrial and commercial fields. Due to the complex working environment and numerous equipment, the valve dial is easily bumped or misoperated, which accidentally changes the state of the heat source switching device and causes system problems, thereby reducing the practicality of the device. To address the above problems, we have introduced a heat source switching device for the water circuit of the intermediate heat exchanger of a two-stage high-temperature heat pump unit. Utility Model Content

[0004] The utility model discloses a heat source switching device for the water circuit of the intermediate heat exchanger of a two-stage high-temperature heat pump unit. The existing structure and defects are studied and improved, and a heat source switching device for the water circuit of the intermediate heat exchanger of a two-stage high-temperature heat pump unit is provided to achieve the purpose of better practical value.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A heat source switching device for the water circuit of an intermediate heat exchanger of a two-stage high-temperature heat pump unit comprises a valve body, flanges are fixedly connected on both sides of the valve body, a first connecting block is arranged on the top of the valve body, a second connecting block is arranged on the top of the first connecting block, bolts are arranged between the valve body, the first connecting block and the second connecting block, a rotating rod is rotatably connected inside the second connecting block, a turntable is arranged on the top of the rotating rod, a mounting block is rotatably connected outside the rotating rod and inside the valve body, a valve plate is arranged at the bottom of the rotating rod, the outer side of the valve plate is rotatably connected to the inside of the mounting block, and a limiting component is arranged on one side of the second connecting block.

[0007] In a preferred embodiment, the limit assembly includes a mounting plate, which is arranged on one side of the second connecting block, and the mounting plate is L-shaped. A first groove is provided on the top of the mounting plate, and a slider is slidably connected to the inside of the first groove, and a clamping block is fixedly connected to the top of the slider.

[0008] In a preferred solution, a first spring is arranged between the bottom of the inner wall of the first containing groove and the bottom of the sliding block.

[0009] In a preferred solution, one side of the block is fixedly connected to a column, one end of the column is provided with a second groove, the interior of the second groove is slidably connected to a limit block, and one side of the limit block is fixedly connected to a lever.

[0010] In a preferred solution, a second spring is arranged on the outer side of the shift rod and on one side of the limit block.

[0011] In a preferred solution, a through slot is provided on one side of the mounting plate, the outer side of the lever is slidably connected to the inner side of the through slot, a fixing block is fixedly connected to one side of the mounting plate, and a fixing slot is provided on one side of the fixing block.

[0012] The utility model provides a heat source switching device for the water circuit of the intermediate heat exchanger of a two-stage high-temperature heat pump unit, which has the following advantages:

[0013] By setting a limit assembly on the valve body to resist the turntable and prevent it from rotating, it cannot be easily accidentally collided or misoperated by personnel. This can reduce the risk of damage caused by accidental operation or incorrect switching of heat sources and improve the stability and reliability of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional schematic diagram of a heat source switching device for the water circuit of an intermediate heat exchanger of a two-stage high-temperature heat pump unit proposed by the utility model.

[0015] Figure 2 This is a first explosion schematic diagram of a heat source switching device for an intermediate heat exchanger water circuit of a two-stage high-temperature heat pump unit proposed by the utility model.

[0016] Figure 3 This is a second explosion schematic diagram of a heat source switching device for an intermediate heat exchanger water circuit of a two-stage high-temperature heat pump unit proposed by the utility model.

[0017] Figure 4 This is an enlarged schematic diagram of a limiting component of a heat source switching device for an intermediate heat exchanger water circuit of a two-stage high-temperature heat pump unit proposed by the utility model.

[0018] In the accompanying drawings: 1. valve body; 2. flange; 3. first connecting block; 4. second connecting block; 5. bolt; 6. turntable; 7. mounting plate; 8. rotating rod; 9. valve plate; 10. mounting block; 11. first receiving groove; 12. through groove; 13. fixing block; 14. fixing groove; 15. clamping block; 16. slider; 17. first spring; 18. column; 19. lever; 20. second receiving groove; 21. limit block; 22. second spring. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application usually described and marked in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application claimed for protection, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present application.

[0020] The utility model discloses a heat source switching device for a water circuit of an intermediate heat exchanger of a two-stage high-temperature heat pump unit, which is mainly used in the scenario of a valve of a heat source switching device.

[0021] Reference Figure 1 and Figure 2 A heat source switching device for the water circuit of an intermediate heat exchanger of a two-stage high-temperature heat pump unit comprises: a valve body 1, flanges 2 are fixedly connected to both sides of the valve body 1, a first connecting block 3 is arranged on the top of the valve body 1, a second connecting block 4 is arranged on the top of the first connecting block 3, bolts 5 are arranged between the valve body 1, the first connecting block 3 and the second connecting block 4, a rotating rod 8 is rotatably connected to the inside of the second connecting block 4, a turntable 6 is arranged on the top of the rotating rod 8, a mounting block 10 is rotatably connected to the outside of the rotating rod 8 and located inside the valve body 1, a valve plate 9 is arranged at the bottom of the rotating rod 8, the outside of the valve plate 9 is rotatably connected to the inside of the mounting block 10, and a limiting component is arranged on one side of the second connecting block 4.

[0022] In the above technical scheme, taking into account the problem that the turntable 6 of the valve is easily subject to collision or misoperation, which may accidentally change the state of the heat source switching device, in order to solve such problems, the specific operations are as follows: a limit assembly is set on the valve body 1 to resist the turntable 6 to prevent the turntable 6 from rotating, so that it cannot be easily accidentally collided or misoperated by personnel. This can reduce the risk of damage caused by accidental operation or incorrect switching of the heat source, and improve the stability and reliability of the system.

[0023] Reference Figure 3 and Figure 4In a preferred embodiment, the limit assembly includes a mounting plate 7, which is arranged on one side of the second connecting block 4, and the mounting plate 7 is L-shaped. A first groove 11 is provided on the top of the mounting plate 7, and a slider 16 is slidably connected inside the first groove 11. A clamping block 15 is fixedly connected to the top of the slider 16. A first spring 17 is provided between the bottom of the inner wall of the first groove 11 and the bottom of the slider 16. A column 18 is fixedly connected to one side of the clamping block 15, and a second groove 20 is provided at one end of the column 18. A limit block 21 is slidably connected inside the second groove 20, and a lever 19 is fixedly connected to one side of the limit block 21. A second spring 22 is provided on the outer side of the lever 19 and on one side of the limit block 21. A through groove 12 is provided on one side of the mounting plate 7, and the outer side of the lever 19 is slidably connected to the inner side of the through groove 12. A fixed block 13 is fixedly connected to one side of the mounting plate 7, and a fixed groove 14 is provided on one side of the fixed block 13.

[0024] In the above technical solution, considering that the turntable 6 of the valve is susceptible to collision or misoperation, in order to solve such problems, the specific operation is as follows: when the turntable 6 needs to be rotated, the pull lever 19 is first moved downward, thereby driving the column 18, the slider 16, and the block 15 to move downward, so that the block 15 is separated from the turntable 6 and enters the first receiving groove 11. At this time, the first spring 17 is compressed. When the lever 19 moves to the lowest position, the lever 19 is pulled outward to drive the limit block 21 to move. At this time, the second spring 22 is compressed, and then Rotate the lever 19 and put one end of the lever 19 into the fixed groove 14, so that the lever 19 is restricted and the turntable 6 can be rotated. When the rotation is completed, just pull out the lever 19, rotate it 90 degrees and let go. Under the action of the second spring 22, the lever 19 is reset. Then, under the action of the first spring 17, the slider 16 and the block 15 are pushed upward, so that the block 15 comes out of the first receiving groove 11 and resists on the edge of the inner rod of the turntable 6, thereby restricting the turntable 6 to prevent the turntable 6 from being hit or misoperated.

[0025] Working principle: When in use, when the turntable 6 needs to be rotated, first the lever 19 is pulled downward, thereby driving the column 18, the slider 16, and the block 15 to move downward, so that the block 15 is separated from the turntable 6 and enters the first receiving groove 11. At this time, the first spring 17 is compressed. When the lever 19 moves to the lowest position, the lever 19 is pulled outward to drive the limit block 21 to move. At this time, the second spring 22 is compressed, and then the lever 19 is rotated to put one end of the lever 19 into the fixed groove 14, so that the lever 19 is restricted, that is, The turntable 6 can be rotated. When the rotation is finished, just pull out the lever 19, rotate it 90 degrees and let go. Under the action of the second spring 22, the lever 19 is reset. Then, under the action of the first spring 17, the slider 16 and the block 15 are pushed upward, so that the block 15 comes out of the first groove 11 and resists on the edge of the inner rod of the turntable 6, thereby restricting the turntable 6 to prevent the turntable 6 from being hit or misoperated. The contents not described in detail in this manual belong to the existing technology known to professional and technical personnel in this field.

[0026] The above is only a preferred specific implementation of the utility model, but the protection scope of the utility model is not limited to this. The replacement can be a replacement of part of the structure, device, method step, or a complete technical solution. Equivalent replacement or change based on the technical solution of the utility model and its utility model concept should be included in the protection scope of the utility model.

Claims

1. A heat source switching device for a water circuit of an intermediate heat exchanger of a two-stage high-temperature heat pump unit, comprising a valve body (1), characterized in that: Flanges (2) are fixedly connected to both sides of the valve body (1); a first connecting block (3) is arranged on the top of the valve body (1); a second connecting block (4) is arranged on the top of the first connecting block (3); bolts (5) are arranged between the valve body (1), the first connecting block (3) and the second connecting block (4); a rotating rod (8) is rotatably connected inside the second connecting block (4); a rotating disk (6) is arranged on the top of the rotating rod (8); a mounting block (10) is rotatably connected outside the rotating rod (8) and located inside the valve body (1); a valve plate (9) is arranged at the bottom of the rotating rod (8); the outside of the valve plate (9) is rotatably connected to the inside of the mounting block (10); and a limit position assembly is arranged on one side of the second connecting block (4).

2. The heat source switching device for the water circuit of the intermediate heat exchanger of a two-stage high-temperature heat pump unit according to claim 1, characterized in that: The position limiting assembly comprises a mounting plate (7), the mounting plate (7) being arranged on one side of the second connecting block (4), the mounting plate (7) being L-shaped, a first receiving groove (11) being provided on the top of the mounting plate (7), a sliding block (16) being slidably connected inside the first receiving groove (11), and a clamping block (15) being fixedly connected to the top of the sliding block (16).

3. The heat source switching device for the water circuit of the intermediate heat exchanger of a two-stage high-temperature heat pump unit according to claim 2, characterized in that: A first spring (17) is provided between the bottom of the inner wall of the first containing groove (11) and the bottom of the sliding block (16).

4. The heat source switching device for the water circuit of the intermediate heat exchanger of a two-stage high-temperature heat pump unit according to claim 3, characterized in that: One side of the clamping block (15) is fixedly connected to a column (18), one end of the column (18) is provided with a second receiving groove (20), the interior of the second receiving groove (20) is slidably connected to a limit block (21), and one side of the limit block (21) is fixedly connected to a lever (19).

5. The heat source switching device for the water circuit of the intermediate heat exchanger of a two-stage high-temperature heat pump unit according to claim 4, characterized in that: A second spring (22) is provided on the outside of the shifting rod (19) and on one side of the limiting block (21).

6. The heat source switching device for the water circuit of the intermediate heat exchanger of a two-stage high-temperature heat pump unit according to claim 5, characterized in that: A through slot (12) is formed on one side of the mounting plate (7), the outer side of the lever (19) is slidably connected to the inside of the through slot (12), a fixing block (13) is fixedly connected to one side of the mounting plate (7), and a fixing slot (14) is formed on one side of the fixing block (13).

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