Pilot-operated type hot gas bypass valve

Abstract

The utility model relates to the technical field of hot gas bypass valves, and discloses a pilot-operated type hot gas bypass valve which comprises a valve body, a control port is formed in the top of the outer wall of the valve body, a connecting port is communicated with the middle of the outer wall of the valve body, sliding grooves are formed in the periphery of the inner wall of the connecting port, sliding blocks are connected into the sliding grooves in a sliding mode, and the sliding blocks are connected with the valve body in a sliding mode. And the adjacent sides of the multiple sliding blocks are fixedly connected with filter cartridges, sponge layers are arranged in the filter cartridges, activated carbon layers are arranged in the filter cartridges, and air inlets are slidably connected to the interiors of the connecting openings. According to the air purifier, air guided out of the air inlet can be conveniently filtered through a sponge layer and an activated carbon layer in the filter cartridge, a connecting block is aligned to a hole in the bottom of a connecting shell to be inserted, a clamping groove is formed in the outer wall of the connecting shell, and a buckle is jacked into the clamping groove through a spring; and therefore, the external pipeline can be quickly mounted.

Description

Technical Field

[0001] The utility model relates to the technical field of hot gas bypass valves, in particular to a pilot-operated hot gas bypass valve. Background Art

[0002] The hot gas bypass valve is an energy regulating valve in air conditioning, refrigeration and freezing equipment. It can bypass the high-temperature gaseous refrigerant at the high-pressure end to the low-pressure end to ensure that the system operates under a given minimum return air pressure. Its function is to prevent the compressor from starting and stopping frequently, to prevent the compressor from working under extremely low suction pressure, and to prevent evaporator frosting at low load, so as to ensure good oil return performance of the compressor.

[0003] When the traditional hot gas bypass valve inhales the gas, the gas is easily mixed with a large amount of impurities such as dust, rust particles, metal chips, etc. These impurities entering the pilot valve are likely to cause wear, blockage or damage to the internal parts of the valve, thereby affecting the normal operation and service life of the valve. Therefore, a pilot hot gas bypass valve is proposed to solve the above problems. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a pilot hot gas bypass valve, which aims to improve the problem in the prior art that the gas is easily mixed with a large amount of dust, which easily leads to damage to the internal components of the valve.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a pilot hot gas bypass valve, comprising a valve body, a control port is installed at the top of the outer wall of the valve body, a connecting port is connected to the middle of the outer wall of the valve body, sliding grooves are opened around the inner wall of the connecting port, a plurality of sliding grooves are slidably connected with sliders inside, a plurality of adjacent sides of the sliders are fixedly connected with filter cartridges, a sponge layer is arranged inside the filter cartridge, an activated carbon layer is arranged inside the filter cartridge, an air inlet is slidably connected to the outer wall of the connecting port, a connecting piece 1 is fixedly connected to the outer wall of the air inlet, a connecting piece 2 is fixedly connected to the outer wall of the connecting port, bolts are threadedly connected to the left side of the connecting piece 1, the right ends of the two bolts pass through the connecting piece 1 and are threadedly connected to the inside of the connecting piece 2, nuts are threadedly connected to the outer walls of the two bolts, and a mounting mechanism is arranged at the bottom end of the valve body.

[0006] As a further description of the above technical solution:

[0007] The mounting mechanism includes an outlet, the top end of the outlet is connected to the bottom end of the valve body, the bottom of the outer wall of the outlet is fixedly connected to a connecting shell, the outer wall of the connecting shell is provided with a slot, the inside of the outlet is slidably connected to an external pipe, the outer wall of the external pipe is fixedly connected to a connecting block, the outer wall of the connecting block is provided with a mounting hole, the inside of the two mounting holes are slidably connected to a buckle, and the adjacent ends of the two buckles are fixedly connected to a spring.

[0008] As a further description of the above technical solution:

[0009] A sealing ring is fixedly connected to the top of the outer wall of the external pipe, and the outer wall of the sealing ring is arranged on the inner wall of the outlet.

[0010] As a further description of the above technical solution:

[0011] A wear-resistant sleeve is fixedly connected to the middle part of the outer wall of the external pipe.

[0012] As a further description of the above technical solution:

[0013] An on-off valve is installed on the outer wall of the air inlet.

[0014] As a further description of the above technical solution:

[0015] An air pressure monitor is installed on the outer wall of the valve body.

[0016] As a further description of the above technical solution:

[0017] The diameter of the bolt matches the inner size of the nut.

[0018] As a further description of the above technical solution:

[0019] The bottom of the connecting shell is provided with a limiting groove.

[0020] The utility model has the following beneficial effects:

[0021] In the utility model, the sponge layer and the activated carbon layer inside the filter cartridge can conveniently filter the gas discharged from the air inlet, which greatly improves the service life of the valve body. The air inlet and the connecting port are interconnected by connecting piece 1 and connecting piece 2. The valve body can be removed by turning the bolts, thereby replacing the internal filter cartridge.

[0022] In the utility model, the connection block is inserted into the hole at the bottom of the connection shell by aligning it, a card slot is opened on the outer wall of the connection shell, and the buckle is inserted into the card slot by a spring, thereby completing the rapid installation of the external pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A three-dimensional schematic diagram of a pilot hot gas bypass valve proposed by the utility model;

[0024] Figure 2 This is a disassembled diagram of a pilot-operated hot gas bypass valve proposed by the utility model;

[0025] Figure 3 The utility model is a schematic structural diagram of a mounting device for a pilot-operated hot gas bypass valve.

[0026] Legend:

[0027] 1. Valve body; 2. Installation mechanism; 201. Outlet; 202. Connecting shell; 203. Slot; 204. Limiting slot; 205. External pipe; 206. Connecting block; 207. Mounting hole; 208. Buckle; 209. Spring; 210. Sealing ring; 211. Wear-resistant sleeve; 3. Control port; 4. Connecting port; 5. Slide; 6. Sliding block; 7. Filter cartridge; 8. Sponge layer; 9. Activated carbon layer; 10. Air inlet; 11. Connecting piece 1; 12. Connecting piece 2; 13. Bolt; 14. Nut; 15. Switch valve; 16. Air pressure monitor. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0029] Reference Figure 1 and Figure 2 The utility model provides an embodiment: a pilot hot gas bypass valve, comprising a valve body 1, a control port 3 is installed on the top of the outer wall of the valve body 1, a connecting port 4 is connected to the middle of the outer wall of the valve body 1, and slide grooves 5 are opened around the inner wall of the connecting port 4, and sliders 6 are slidably connected inside the multiple slide grooves 5, and filter cartridges 7 are fixedly connected to the adjacent sides of the multiple sliders 6. A sponge layer 8 is arranged inside the filter cartridge 7, and an activated carbon layer 9 is arranged inside the filter cartridge 7. An air inlet 10 is slidably connected to the inner wall of the connecting port 4, and a connecting piece 11 is fixedly connected to the outer wall of the air inlet 10, and a connecting piece 2 12 is fixedly connected to the outer wall of the connecting port 4. Bolts 13 are threadedly connected to the left side of the connecting piece 11, and the right ends of the two bolts 13 penetrate the connecting piece 11 and are threadedly connected to the inside of the connecting piece 2 12. Nuts 14 are threadedly connected to the outer walls of the two bolts 13, and a mounting mechanism 2 is arranged at the bottom end of the valve body 1.

[0030] Specifically, a control port 3 is installed on the top of the outer wall of the valve body 1, and the position of the inlet and outlet can be opened or closed through the control port 3. A connecting port 4 is connected to the middle of the outer wall of the valve body 1, and the air inlet 10 can be connected through the connecting port 4, so that the gas can enter the valve body 1 conveniently. A slide groove 5 is opened on the inner wall of the connecting port 4, and the filter cartridge 7 on the slider 6 is installed and connected through the slide groove 5. A sponge layer 8 and an activated carbon layer 9 are arranged inside the filter cartridge 7. The sponge layer 8 and the activated carbon layer 9 can be used to filter the gas derived from the air inlet 10, which greatly improves the service life of the valve body 1. The air inlet 10 and the connecting port 4 are connected to each other through a connecting piece 11 and a connecting piece 2 12. The connecting piece 11 and the connecting piece 2 12 are fixedly installed by a bolt 13 and a nut 14. When the filter cartridge 7 is replaced, the valve body 1 is dismantled by rotating the bolt 13, so that the internal filter cartridge 7 is replaced.

[0031] Reference Figure 1 and Figure 3 The mounting mechanism 2 includes an outlet 201, the top of the outlet 201 is connected to the bottom of the valve body 1, the bottom of the outer wall of the outlet 201 is fixedly connected to a connecting shell 202, the outer wall of the connecting shell 202 is provided with a slot 203, the inside of the outlet 201 is slidably connected to an external pipe 205, the outer wall of the external pipe 205 is fixedly connected to a connecting block 206, the outer wall of the connecting block 206 is provided with a mounting hole 207, the inside of the two mounting holes 207 are slidably connected to buckles 208, the adjacent ends of the two buckles 208 are fixedly connected to springs 209, the bottom of the connecting shell 202 is provided with a limiting groove 204, the top of the outer wall of the external pipe 205 is fixedly connected to a sealing ring 210, the outer wall of the sealing ring 210 is arranged on the inner wall of the outlet 201, and the middle of the outer wall of the external pipe 205 is fixedly connected to a wear-resistant sleeve 211.

[0032] Specifically, an outlet 201 is installed at the bottom end of the valve body 1, and a connecting shell 202 is fixedly installed at the bottom end of the outer wall of the outlet 201. The external pipe 205 can be installed through the connecting shell 202. Two limiting grooves 204 are provided at the bottom of the connecting shell 202. At the same time, a connecting block 206 is fixed on the outer wall of the external pipe 205. By aligning the connecting block 206 with the hole at the bottom of the connecting shell 202 and inserting it, two mounting holes 207 are provided on the outer wall of the connecting block 206. The parts for fixing the pipe can be installed through the mounting holes 207. A clip 208 is installed inside the mounting hole 207, and springs 209 are fixed at the ends of the two clips 208. When the connecting block 206 is inserted, the limiting groove 204 can facilitate the clip 208 to enter the connecting shell 202, and then be squeezed by the internal spring 209. Therefore, when the external pipe 205 is fully inserted into the bottom end of the outlet 201, a slot 203 is opened on the outer wall of the connecting shell 202, and the spring 209 can push the clip 208 into the slot 203, thereby completing the rapid installation of the external pipe 202.

[0033] Reference Figure 1 and Figure 2 A switch valve 15 is installed on the outer wall of the air inlet 10, an air pressure monitor 16 is installed on the outer wall of the valve body 1, and the diameter of the bolt 13 is matched with the inner size of the nut 14.

[0034] Specifically, the switch valve 15 can be used to close the pipeline of the air inlet 10 when replacing the filter cartridge 7, so that replacement is more convenient. The bolt 13 and the nut 13 are the same size, so that installation can be easier and more convenient.

[0035] Working principle: First, when filtering the valve body 1, the air inlet 10 can be connected through the connecting port 4 to facilitate the gas to enter the valve body 1. A slide groove 5 is opened on the inner wall of the connecting port 4. The filter cartridge 7 on the slider 6 is installed and connected through the slide groove 5. A sponge layer 8 and an activated carbon layer 9 are arranged inside the filter cartridge 7. The sponge layer 8 and the activated carbon layer 9 can facilitate the filtering of the gas discharged from the air inlet 10, thereby greatly improving the service life of the valve body 1. The air inlet 10 and the connection port 4 are connected to each other through a connection piece 11 and a connection piece 2 12, and the connection piece 11 and the connection piece 2 12 are fixedly installed by a bolt 13 and a nut 14. When the filter cartridge 7 is replaced, the valve body 1 is dismantled by rotating the bolt 13, so that the filter cartridge 7 inside is replaced, and the connection block 206 is inserted into the hole at the bottom of the connection shell 202. Two mounting holes 207 are provided on the outer wall of the connection block 206, and the parts of the fixed pipeline can be installed through the mounting holes 207. For installation, a buckle 208 is installed inside the installation hole 207, and springs 209 are fixed at the ends of the two buckles 208. When the connecting block 206 is inserted, the limit groove 204 can facilitate the buckle 208 to enter the connecting shell 202, and then be squeezed by the internal spring 209. When the external pipe 205 is fully inserted into the bottom end of the outlet 201, a slot 203 is opened on the outer wall of the connecting shell 202, and the spring 209 can push the buckle 208 into the slot 203, thereby completing the rapid installation of the external pipe 202.

[0036] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A pilot-operated hot gas bypass valve, comprising a valve body (1), characterized in that: A control port (3) is installed at the top of the outer wall of the valve body (1); a connecting port (4) is connected to the middle of the outer wall of the valve body (1); sliding grooves (5) are provided around the inner wall of the connecting port (4); a plurality of sliding grooves (5) are slidably connected to the inside of each of the sliding grooves (5); a plurality of adjacent sides of each of the sliding grooves (6) are fixedly connected to a filter cartridge (7); a sponge layer (8) is provided inside the filter cartridge (7); an activated carbon layer (9) is provided inside the filter cartridge (7); and the inside of the connecting port (4) is slidably connected to the inside of each of the sliding grooves (5). An air inlet (10) is connected, the outer wall of the air inlet (10) is fixedly connected to a connecting piece 1 (11), the outer wall of the connecting port (4) is fixedly connected to a connecting piece 2 (12), the left side of the connecting piece 1 (11) is threadedly connected to a bolt (13), the right ends of the two bolts (13) pass through the connecting piece 1 (11) and are threadedly connected to the inside of the connecting piece 2 (12), the outer walls of the two bolts (13) are threadedly connected to a nut (14), and the bottom end of the valve body (1) is provided with a mounting mechanism (2).

2. A pilot-operated hot gas bypass valve according to claim 1, characterized in that: The mounting mechanism (2) comprises an outlet (201), the top end of the outlet (201) is connected to the bottom end of the valve body (1), the bottom of the outer wall of the outlet (201) is fixedly connected to a connecting shell (202), the outer wall of the connecting shell (202) is provided with a slot (203), the inside of the outlet (201) is slidably connected to an external pipe (205), the outer wall of the external pipe (205) is fixedly connected to a connecting block (206), the outer wall of the connecting block (206) is provided with a mounting hole (207), the inside of two mounting holes (207) are slidably connected to buckles (208), and adjacent ends of the two buckles (208) are fixedly connected to springs (209).

3. A pilot-operated hot gas bypass valve according to claim 2, characterized in that: A sealing ring (210) is fixedly connected to the top of the outer wall of the external pipe (205), and the outer wall of the sealing ring (210) is arranged on the inner wall of the outlet (201).

4. A pilot-operated hot gas bypass valve according to claim 2, characterized in that: A wear-resistant sleeve (211) is fixedly connected to the middle portion of the outer wall of the external pipe (205).

5. The pilot-operated hot gas bypass valve according to claim 1, characterized in that: An on-off valve (15) is installed on the outer wall of the air inlet (10).

6. The pilot-operated hot gas bypass valve according to claim 1, characterized in that: An air pressure monitor (16) is installed on the outer wall of the valve body (1).

7. The pilot-operated hot gas bypass valve according to claim 1, characterized in that: The diameter of the bolt (13) is matched to the inner size of the nut (14).

8. The pilot-operated hot gas bypass valve according to claim 2, characterized in that: The bottom of the connection shell (202) is provided with a limiting groove (204).

Images