CN102203473B - Disc-shaped high-pressure gas bypass valve device for generating a pressure regulating system in an air-conditioning or air-cooling system - Google Patents

Abstract

A disc-shaped high pressure bypass valve device (14) is a specially designed check valve, which does not need to be connected electrically, and has two functions of generating a pressure regulating system in an air conditioning or air cooling system, and the specific contents are as follows: A) an opening function that opens a passage for high-pressure hydraulic cooling oil through a bypass oil pipe (14A), also called a bypass path, when the compressor temporarily stops operating; B) the function of opening and controlling the flow direction of the cooling oil flowing into the high-pressure-steam pipe (14C) is also called a normal path when the compressor is normally operated, in other words, a normal function of an air conditioning or air cooling system in which a pressure adjusting system is not provided inside.

Description

Disc-shaped high-pressure gas bypass valve device for generating a pressure regulating system in an air-conditioning or air-cooling system

technical field

The invention relates to engineering related to a cold air-conditioning pressure regulation system.

Background technique

Air conditioning and refrigeration equipment currently use compressed air refrigeration systems. Most equipment consists of 3 main parts: 1) a compressor, 2) a heating coil system (condenser or condensing coil) and a cooling coil, usually installed in a temperature-controlled room (hereinafter referred to as the "room") system (evaporator or cooling coil), 3) thermostat or temperature controller, which controls the motor operation of the compressor. When the room temperature reaches the temperature preset by the user, the motor temporarily stops running; otherwise, as long as the room temperature fails to maintain the temperature preset by the user, the motor will continue to run. The compressor is an important mechanical device that delivers a stream of compressed cooling oil, which is a compound with a lower boiling point, throughout the system. After passing through the cooling coil system, the low-pressure and low-temperature steam is sucked into the compressor to be compressed into high-pressure and high-temperature steam, and discharged into the heating coil system, and then enters the pipeline system to start the working cycle. After passing through the heating coil system, the above-mentioned oil flow becomes a high-pressure and high-temperature liquid and flows through the capillary tube into the cooling coil system. Inside the cooling coil system, the oil flow is transformed into low-pressure low-temperature steam and then sucked into the compressor again.

During a certain period of time, the motor will be stopped by the thermostat. This will cause the oil pressure in the refrigeration system to gradually drop. The high-pressure and high-temperature liquid in the cooling coil system will be continuously evaporated into low-pressure and low-temperature steam due to high temperature and discharged into the room. At this point, the influx of high-pressure, high-temperature liquid merges with the previously cooled vapor. The latent heat generated in this situation prevents the complete conversion of the oil stream to steam. If the oil flow is not completely converted into steam, it will affect the indoor temperature and cannot stabilize at the preset value for a long time. Therefore, the compressor must be kept running when it is not necessary, that is to say, it needs to be operated at a high level for a long time like a commercial operation. In this way, the oil flow that has not been fully converted to vapor can damage the suction control valve of the compressor, so there is a high risk of severe damage to the compressor. Keeping the temperature stable at the preset value for a long time will cause a huge waste of energy, especially the electricity wasted to keep the compressor running ineffectively. The operation of the compressor has caused a lot of unnecessary energy loss and waste.

Later, in the frequency conversion system, the motor of the compressor used a low-speed circulation system to solve the problem of being stable at a predetermined temperature value for a long time. But this approach was not successful. The reason is that although the variable frequency system runs at full speed and reaches the temperature preset by the user, it can maintain this temperature for a long time, but the low-speed circulation system of the variable frequency compressor still consumes a lot of electric energy during operation. It can be seen that even if the temperature value required by the user can be maintained, unnecessary energy loss and energy waste during operation still exist, and the above-mentioned problems have not been fundamentally resolved. Also, if the BTU design of an inverter air conditioning system is larger than the size of the room in which it is installed, then the inverter system is basically useless.

In order to solve the above problems, the present invention provides a special check valve as a pressure control valve device-high pressure bypass valve device, which is a disc-shaped valve device used in air conditioning or air cooling systems to generate pressure regulation systems, it When the compressor is suspended under the control of the thermostat, it can block the high-pressure and high-temperature steam-like cooling oil discharged from the compressor. This creates a pressure regulation system inside the air conditioner. The pressure regulation system generated by the above equipment can maintain the temperature level for a long time after the compressor runs at full speed and reaches the temperature value preset by the user, and the power energy is used reasonably without waste.

purpose of invention

The present invention aims to provide a special check valve as a pressure control valve device-high pressure bypass valve device, which is a disc-shaped valve device used in an air-conditioning or air cooling system to generate a pressure regulating system for solving common In air-conditioning and air cooling equipment, when the compressor temporarily stops running, the high-pressure high-temperature liquid and the cooling coil system have been converted into low-pressure low-temperature steam to fuse to generate latent heat, and cause full-speed operation to reach the user's preset temperature and cannot be maintained for a long time problem with this temperature level.

Contents of the invention

Disc-shaped high-pressure bypass valve equipment (14) is a kind of check valve of special design, and this mechanical equipment does not need to connect electricity, and its two major functions can produce pressure regulating system in air-conditioning or air cooling system. See below for details, see Figures 1 and 2.

A) As shown in Figure 3, open the service function, when the compressor stops running temporarily, through the bypass oil pipe (14A), also known as the bypass path, open the passage for the cooling oil in the form of high-pressure liquid flow. This creates a pressure regulation system inside the air conditioning or air cooling system. The main internal mechanical device that cooperates to realize this function is a bypass oil pipe (14A), which drains the cooling oil inside the equipment (14) of the present invention to the suction duct (10), and the suction duct sucks the suction of the compressor (1) The cooling oil of low-pressure steam, the bypass oil pipe (14A) is connected with the internal bypass oil pipe (14E) inside the device (14) of the present invention. The disc valve stem (14D) is a metal pin inserted into the slide track of the disc valve. The slide track of the disc valve is like a tunnel, so it is called the stem valve slide track (14E1). One end of the disc valve stem (14D) is connected to the disc valve (14D1.1), which is a thin metal sheet that acts as a block when closed, or opens the interior for cooling oil when the compressor is temporarily stopped. Bypass oil pipe (14E), and flow out the present invention equipment by bypass oil pipe (14A). The spring (14D1.2) under the disc valve is a coil spring, which is located under the disc valve (14D1.1). Its function is to prevent the cooling oil from passing through the side when the disc valve is closed when the compressor is in normal operation. The blocking function of the oil pipe flowing into the bypass path provides safety protection. The function of the high-pressure steam-push valve (14C.1) is to push the stem head (14D1.3) of the disc valve to press the disc valve (14D1.1), slide and open the bypass path, and prevent the cooling oil from flowing back. The effect of the spring (14C2) on the upper end of the high-pressure-steam valve is to push the high-pressure steam-push valve (14C.1) to slide downwards, and the stem head (14D1.3) of the disc valve is supported to close the normal path. As a result of the above, the flow of high pressure liquid cooling oil from the heating coil system is also blocked. Therefore, the cooling oil that has entered the cooling coil system will be completely transformed into low-pressure steam, so that within a certain period of time, the room can maintain the temperature value preset by the user, and there is no need to consume additional power during operation .

B) As shown in Figure 2, the function of opening and controlling the flow of cooling oil flowing into the high-pressure-steam pipeline (14C) is also called the normal path of the compressor during normal operation, in other words, there is no pressure regulation system inside normal function of the air conditioning or air cooling system. It can be seen that the pressure regulating system is not produced by this function. The main internal mechanism that cooperates to realize this function is high-pressure steam-drainage-pipeline (14B), and this pipeline is positioned between high-pressure-steam pipeline (14C) and the equipment main body (14) of the present invention, links to each other with the equipment bottom of the present invention, its The function is to direct the high-pressure vapor-like cooling oil from the compressor into the thermal coil (2) via the normal path. The function of the high-pressure push valve (14C.1) is to open and control the flow direction of the high-pressure steam-like cooling oil flowing into the high-pressure-steam pipeline (14C). The function of the spring (14D1.4) under the stem head of the disc valve is to push up the stem head (14D1.3) of the disc valve to help the disc valve (14D1.1) slide and realize the blocking function, preventing Leaked cooling oil enters the bypass path. However, this sliding and blocking function is performed by the pressure generated by the compressor of the air conditioner or air refrigeration equipment during normal operation.

Therefore, the above-mentioned inventive equipment is characterized by its special check valve, that is, the disc-shaped high-pressure gas bypass equipment (14), which can be installed in ordinary air-conditioning and air refrigeration equipment, or above the installation point of the compressor, But placed outside the air conditioning or air cooling system, the purpose is to create a pressure regulation system there, as shown in Figure 5. After the room temperature reaches the user preset temperature value, when the compressor is in a suspended state controlled by the thermostat, the above-mentioned equipment can generate a pressure regulating system. In this way, the entire system does not need to use electricity temporarily, and the oil pressure of the cooling oil in the air-conditioning or air cooling system will gradually decrease. The pressure regulation system results from this function of the inventive device. The high-pressure push valve (14C.1) pushes the stem head (14D1.3) of the disc valve to move, and this movement will automatically control the sliding of the disc valve (14D1.1) and realize its blocking function, cutting off the normal path, which At this time, the cooling oil in the form of high-pressure steam will flow into the bypass path through the bypass oil pipe (14A) under control, and the high-pressure-steam valve (14C.1) will automatically cut off the cooling oil that has entered the heating coil system before the blockage occurs. The oil prevents it from backflowing. The cooling oil flow, which has been converted from high-pressure steam to medium-pressure steam, then flows into the suction duct (10). In this way, the cooling oil in the cooling coil system is completely converted into low-pressure steam. Affected by the above results, within a certain period of time, the room can maintain the temperature value preset by the user, and there is no need to consume additional power energy during operation. This working system is able to achieve its full efficiency, reducing energy losses. In addition, the compressor does not have to keep running when it is not necessary, and the short periods of smooth operation will not cause incomplete evaporation of the cooling oil, nor will the compressor be severely damaged by the suction process.

Description of drawings

Figure 1 shows the installation position of the disc-shaped high-pressure bypass valve device in the air cooling system. At this point in time, the compressor is in the state of temporarily stopping operation, and the pressure regulating system has also been generated.

Fig. 2 shows the internal mechanical operation of the inventive device when it is in an outage state. The device is installed inside the air conditioning or air cooling system. At this point in time, the compressor is in operation.

Fig. 3 shows the internal mechanical operation of the device of the invention when it is in operation. The device is installed inside the air conditioner or air cooling system. At this point in time, the compressor is in the state of temporarily stopping operation, and the pressure regulating system has been generated.

Fig. 4 is an exploded view of the parts of the device of the invention, which is installed inside the air-conditioning or air cooling system.

Figure 5 shows the installation of the inventive device above the installation point of the compressor, but outside the air conditioning or air cooling system, the pressure regulating system has been created.

Symbol Description

The following symbols used in Figure 1 represent the different states of the cooling oil at different locations in the air conditioning or air cooling system.

0 +0 +0 +0 + The cooling oil is in the form of high-pressure steam.

00000000 The cooling oil is in a high-pressure liquid state.

/ / / / / / / The cooling oil is in a low-pressure liquid state.

xxxxx The cooling oil is in the form of low-pressure steam.

++++++ The cooling oil is in the form of medium pressure steam.

Detailed ways

All detailed descriptions of the present invention can be found in the above description.

Claims (1)

1. A disc-shaped high-pressure bypass valve device (14) is a check valve. This mechanical device does not need to be connected to electricity. Its two functions can generate a pressure regulating system in the air refrigeration system. The specific content is as follows: A) Opening function, when the compressor is temporarily stopped, the bypass oil pipe (14A), also known as the bypass path, opens the passage for the cooling oil in the form of a high-pressure liquid flow; this creates a pressure regulation inside the air refrigeration system system, the main internal mechanical device that cooperates to realize this function is a bypass oil pipe (14A), which drains the cooling oil inside the device (14) of the present invention to the suction pipe (10), and the suction pipe draws the compressor (1) Inhaled low-pressure steam-like cooling oil, the bypass oil pipe (14A) is connected with the internal bypass oil pipe (14E) inside the device (14) of the present invention, and the disc valve stem (14D) is inserted into the slide track of the disc valve The metal pin of the disc valve, the sliding track of the disc valve is like a tunnel, so it is called the stem valve sliding track (14E1). One end of the disc valve stem (14D) is connected with the disc valve (14D1.1), and the disc valve The valve is a metal sheet, which acts as a block when closed. When the compressor temporarily stops running, the internal bypass oil pipe (14E) is opened for cooling oil, and flows out of the device of the present invention through the bypass oil pipe (14A). The spring (14D1.2) is a helical spring located under the disc valve (14D1.1). Its function is to block the cooling oil flow when the disc valve is closed when the compressor is operating normally so that the cooling oil flow will not pass through The blocking function of the bypass oil pipe flowing into the bypass path provides safety protection. The function of the high-pressure steam-push valve (14C.1) is to push the valve stem head (14D1.3) of the disc valve to press the disc valve (14D1.1 ), slide and open the bypass path to prevent the return of cooling oil, and the spring (14C2) at the upper end of the high-pressure steam-push valve is used to push the high-pressure steam-push valve (14C.1) to slide down to support the valve stem of the disc valve The head (14D1.3) closes the normal channel. Affected by the above results, the high-pressure liquid cooling oil flowing out of the heating coil system will also be blocked. Therefore, the cooling oil that has entered the cooling coil system will be completely transformed. Into low-pressure steam, so that within a certain period of time, the room can maintain the temperature value preset by the user, and does not need to consume additional power during operation; B) The function of opening and controlling the flow of cooling oil flowing into the high-pressure-steam pipeline (14C), also known as the normal path of the compressor during normal operation, in other words, the air cooling system without a pressure regulating system inside Normal function; it follows that the pressure regulating system is not produced by this function, the main internal mechanism cooperating to achieve this function is the high pressure steam-drainage-pipe (14B), which is located in the high pressure-steam line (14C) Between the equipment main body (14) of the present invention and connected to the bottom of the equipment of the present invention, its function is to guide the high-pressure steam-like cooling oil from the compressor to flow into the thermal coil (2) through the normal path of the compressor during normal operation, and the high-pressure steam - The function of the push valve (14C.1) is to open and control the flow of high-pressure steam-like cooling oil flowing into the high-pressure-steam pipeline (14C), and the spring (14D1.4) under the stem head of the disc valve is to push the lift The valve stem tip (14D1.3) of the disc valve is high, thereby helping the disc valve (14D1.1) to slide and realize its blocking function, preventing the leaked cooling oil from entering the bypass path, however, the sliding and blocking function It is realized by the pressure generated by the compressor of the air refrigeration system during normal operation; Therefore, the above-mentioned invention equipment is characterized by its check valve, that is, the disc-shaped high-pressure gas bypass device (14), which is installed in the air refrigeration system, or above the installation point of the compressor, but placed in the air refrigeration system. In addition, the purpose is to generate a pressure regulating system in the air refrigeration system; when the room temperature reaches the user's preset temperature value, when the compressor is in a pause state controlled by the thermostat, the above-mentioned disc-shaped high-pressure gas bypass device can generate pressure Regulating system, in this case, the whole system does not need to use electricity for the time being, and the oil pressure of the cooling oil in the air refrigeration system will gradually drop, the pressure regulating system is generated by this function of the inventive equipment, high pressure steam-push valve (14C.1) Push the stem head (14D1.3) of the disc valve to move, this movement will automatically control the sliding of the disc valve (14D1.1) and realize its blocking function, cutting off the normal path. At this time, the high pressure Steamy cooling oil will flow into the bypass path through the bypass oil pipe (14A) under control, and the high-pressure steam-push valve (14C.1) will automatically cut off the cooling oil that has entered the heating coil system before the blockage occurs to prevent It flows back, and the cooling oil flow that has been converted from high-pressure steam to medium-pressure steam then flows into the suction duct, so that the cooling oil in the cooling coil system can be completely converted into low-pressure steam. Affected by the above results, in Within a certain period of time, the room can maintain the temperature value preset by the user, and there is no need to consume additional electric energy during operation. This working system can achieve its full efficiency and reduce energy loss. Keep running during the period of time, the short-term smooth operation will not cause incomplete evaporation of the cooling oil, and will not cause serious damage to the compressor due to the suction process.

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