Constant pressure device for heating pipeline

Abstract

The utility model relates to the technical field of heating pipes, and discloses a constant pressure device for a heating pipeline, which comprises a heating pipe, a first pressure gauge, a second pressure gauge, a first pressure sensor and a second pressure sensor, the pressure relief pipe is arranged on one side of the heat supply pipe in a communicating mode, a pressure relief piece is arranged on the pressure relief pipe and provided with a pressure relief end communicating with the collecting box, a water return pipe is arranged on one side of the collecting box in a communicating mode, and the water outlet end of the water return pipe is used for communicating with a hot water source; the number of the second pressure gauges is the same as that of the pressure relief pipes, the second pressure gauges are in one-to-one correspondence with the pressure relief pipes, and the second pressure gauges are arranged at the ends, close to the heat supply pipe, of the pressure relief pipes and used for detecting the pressure of the communicating positions of the pressure relief pipes and the heat supply pipe; and the control valve is arranged on the pressure relief pipe. The effect of maintaining the constant pressure of the heating pipeline can be achieved, and resource waste is reduced.

Description

Technical Field

[0001] This utility model relates to the field of heating pipe technology, and in particular to a constant pressure device for heating pipes. Background Technology

[0002] Heating pipes primarily raise indoor temperatures by circulating hot water through them and releasing heat radiation into the room. Since heating pipes are a closed system, they typically employ constant pressure devices to maintain a constant pressure within the pipes. For example, in a constant pressure device for a geothermal heating pipe (patent number CN221684670U), a connecting pipe connects to the heating pipe, and a housing is connected to the connecting pipe. An elastic support limiting plate within the housing releases pressure within the connecting pipe to maintain constant pressure in the heating pipe. However, this leads to a situation where, in existing technologies, some of the heating water flowing into the housing cannot effectively return to the connecting pipe due to pressure release and the obstruction of the connection port and sealing plate, resulting in resource waste. Therefore, a constant pressure device for heating pipes is urgently needed. Utility Model Content

[0003] The purpose of this invention is to provide a constant pressure device for heating pipelines to solve the problems existing in the prior art, thereby improving the effect of maintaining constant pressure in heating pipelines and reducing resource waste.

[0004] To achieve the above objectives, this utility model provides the following solution: This utility model provides a constant pressure device for heating pipelines, comprising:

[0005] A heating pipe for transporting hot water is provided, and a first pressure gauge is installed on the heating pipe;

[0006] At least one pressure relief pipe is connected to one side of the heating pipe. The pressure relief pipe is equipped with a pressure relief component. The pressure relief component has a pressure relief end that is connected to a collection box. A return water pipe is connected to one side of the collection box. The outlet end of the return water pipe is used to connect to a hot water source.

[0007] There are several second pressure gauges. The number of second pressure gauges is the same as the number of pressure relief pipes and they correspond one-to-one. The second pressure gauges are located at the end of the pressure relief pipe near the heating pipe and are used to detect the pressure at the connection between the pressure relief pipe and the heating pipe.

[0008] The control valve is located on the pressure relief pipe.

[0009] Preferably, the pressure relief component is a pressure relief valve, which is connected to the end of the pressure relief pipe away from the heating pipe. The outlet end of the pressure relief valve is connected to a discharge pipe, which is connected to the collection tank.

[0010] Preferably, the control valve is a solenoid valve, which is installed at the outlet of the second pressure gauge and is communicatively connected to the second pressure gauge.

[0011] Preferably, a plurality of the pressure relief pipes define a pressure relief zone on the heating pipe, and the first pressure gauge is installed at the water inlet end of the pressure relief zone.

[0012] Preferably, the heating pipe is further provided with a first check valve, which is arranged at the outlet end of the pressure relief zone.

[0013] Preferably, a Y-type filter is connected to the pressure relief pipe at the water inlet end of the pressure relief valve.

[0014] Preferably, a pump is installed on the return water pipe, and a second check valve is provided at the water inlet end of the pump.

[0015] Preferably, the collection box is covered with a heat insulation layer.

[0016] The present invention discloses the following technical effects:

[0017] This invention obtains information on the total water pressure in the heating pipe by installing a first pressure gauge on the heating pipe, and connects at least one pressure relief pipe to the heating pipe to relieve the water pressure in the heating pipe, thus maintaining a constant pressure effect on the heating pipeline. In addition, a collection box is set at the pressure relief end of the pressure relief device to recover the water discharged by the pressure relief device, and finally send the collected water back to the hot water source through the return water pipe. Compared with the prior art, this invention can effectively reduce resource waste. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a diagram showing the connection relationship between the heating pipe and the collection box in this utility model;

[0020] Figure 2 This is a diagram showing the positional relationship between the solenoid valve and the second pressure gauge in this utility model.

[0021] The components include: 1. heating pipe; 2. first pressure gauge; 3. pressure relief pipe; 4. return water pipe; 5. second pressure gauge; 6. pressure relief valve; 7. discharge pipe; 8. solenoid valve; 9. first check valve; 10. Y-type filter; 11. second check valve; 12. pump; and 13. collection box. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0024] Reference Figures 1-2 This utility model provides a constant pressure device for heating pipelines, comprising:

[0025] Heating pipe 1 is used to transport hot water, and a first pressure gauge 2 is installed on heating pipe 1;

[0026] At least one pressure relief pipe 3 is connected to one side of the heating pipe 1. The pressure relief pipe 3 is equipped with a pressure relief component. The pressure relief component has a pressure relief end connected to the collection box 13. A return water pipe 4 is connected to one side of the collection box 13. The outlet end of the return water pipe 4 is used to connect to the hot water source.

[0027] There are several second pressure gauges 5. The number of second pressure gauges 5 is the same as that of pressure relief pipes 3 and they correspond one-to-one. The second pressure gauges 5 are set at the end of pressure relief pipe 3 near heating pipe 1 and are used to detect the pressure at the connection between pressure relief pipe 3 and heating pipe 1.

[0028] The control valve is located on the pressure relief pipe 3.

[0029] This invention obtains information on the total water pressure in the heating pipe 1 by installing a first pressure gauge 2 on the heating pipe 1, and connects at least one pressure relief pipe 3 to the heating pipe 1 to relieve the water pressure in the heating pipe 1, thereby maintaining a constant pressure effect on the heating pipeline. In addition, a collection box 13 is set at the pressure relief end of the pressure relief component to recover the water discharged by the pressure relief component, and finally send the collected water back to the hot water source through the return water pipe 4. Compared with the prior art, this invention can effectively reduce resource waste.

[0030] Furthermore, the pressure relief pipe 3 is connected to the heating pipe 1 by a control valve. The second pressure gauge 5 installed on the pressure relief pipe 3 is used to obtain the water pressure flowing from the heating pipe 1 through the connection of the pressure relief pipe 3. When the pressure exceeds the safe value and pressure needs to be released, the control valve installed on the pressure relief pipe 3 is used to connect the pressure relief pipe 3 to the heating pipe 1 to release pressure. When the pressure is low, the connection between the pressure relief pipe 3 and the heating pipe 1 is closed. The total delivery water pressure is obtained through the first pressure gauge 2 to meet the normal heating demand.

[0031] In addition, it should be noted that by setting multiple pressure relief pipes 3, and arranging several pressure relief pipes 3 sequentially connected along the direction of water flow on the heating pipe 1, when the pressure is too high, the second pressure gauges 5 corresponding to the multiple pressure relief pipes 3 detect the water pressure flowing through them. When the pressure exceeds the safe value, the pressure relief pipes 3 are opened to release pressure until the water pressure flowing through the second pressure gauge 5 is within the safe pressure range. At this time, the corresponding pressure relief pipes 3 are not connected to the heating pipe 1, which can prevent the water pressure in the heating pipe 1 from falling below the required water pressure. Even when the water pressure in the heating pipe 1 is too high, this technical solution can effectively maintain the constant pressure and stable delivery of the heating pipeline, and improve the constant pressure regulation effect.

[0032] In one embodiment of this utility model, the hot water source is preferably, but not limited to, a water heater or a boiler.

[0033] Furthermore, the pressure relief component is a pressure relief valve 6, which is connected to the end of the pressure relief pipe 3 away from the heating pipe 1. The outlet end of the pressure relief valve 6 is connected to a discharge pipe 7, which is connected to the collection box 13.

[0034] The high pressure is released by the pressure relief valve 6, and the corresponding pressure relief water is directly discharged into the collection tank 13 through the discharge pipe 7 for recycling.

[0035] Furthermore, the control valve is a solenoid valve 8, which is installed at the outlet end of the second pressure gauge 5 and is communicatively connected to the second pressure gauge 5.

[0036] In this technical solution, a solenoid valve 8 is used as the control valve to connect the pressure relief pipe 3 and the heating pipe 1. When the pressure obtained by the second pressure gauge 5 exceeds the safe value, the solenoid valve 8 is opened remotely by the external control system to connect the corresponding pressure relief pipe 3 and the heating pipe 1, thereby improving the efficiency of maintaining constant pressure in the heating pipe 1.

[0037] Specifically, the external control system is a common combination of a computer and a signal transceiver. The signal transceiver receives pressure signals, and the computer calculates the pressure signals to generate electrical signal drive commands. The solenoid valve 8 receives the electrical signal drive commands through the PLC controller to control its opening and closing. The principle is a conventional technical means and will not be described in detail.

[0038] Furthermore, several pressure relief pipes 3 define a pressure relief zone on the heating pipe 1, and a first pressure gauge 2 is installed at the water inlet end of the pressure relief zone.

[0039] The pressure inside the heating pipe 1 is detected by the first pressure gauge 2 to avoid insufficient heating to meet normal heating needs and improve heating efficiency.

[0040] Furthermore, a first check valve 9 is also installed on the heating pipe 1, which is located at the outlet end of the pressure relief section to prevent the supplied water from flowing back into the pressure relief pipe 3.

[0041] Furthermore, a Y-type filter 10 is connected to the inlet end of the pressure relief pipe 3 at the pressure relief valve 6.

[0042] The heating water is filtered to reduce impurities and scale buildup that can clog the pressure relief valve.

[0043] Furthermore, a pump 12 is installed on the return water pipe 4, and a second check valve 11 is provided at the water inlet end of the pump 12.

[0044] The water collected in the collection tank 13 is sent to the hot water source using the pump 12 and the return water pipe 4.

[0045] Furthermore, the collection box 13 is covered with a thermal insulation layer, which is a conventional design and will not be described further.

[0046] The working principle of this constant pressure device for heating pipelines is as follows:

[0047] Hot water is transported through heating pipe 1. During the process, the water pressure is obtained through the first pressure gauge 2. When the water pressure is insufficient for heating, the inlet end of heating pipe 1 is pressurized. When the water pressure in heating pipe 1 is too high, the second pressure gauge 5 can obtain the water pressure flowing through the pressure relief pipe 3. When it exceeds the safe value, the solenoid valve 8 opens to connect the pressure relief pipe 3 with the heating pipe 1. The pressure relief valve 6 is used to release the pressure, and the corresponding pressure relief water is passed into the discharge pipe 7. The discharge pipe 7 passes the pressure relief water into the collection tank 13. Finally, the collected water is passed into the water heater or boiler through the return water pipe 4. After the water is heated, it is passed back into heating pipe 1, reducing resource waste and effectively ensuring constant pressure in the heating pipe.

[0048] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0049] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A constant pressure device for heating pipelines, characterized in that, include: A heating pipe (1) is used to transport hot water for heating, and a first pressure gauge (2) is installed on the heating pipe (1); At least one pressure relief pipe (3) is connected to one side of the heating pipe (1). The pressure relief pipe (3) is provided with a pressure relief component. The pressure relief component has a pressure relief end connected to the collection box (13). A return water pipe (4) is connected to one side of the collection box (13). The outlet end of the return water pipe (4) is used to connect to the hot water source. The second pressure gauge (5) is provided in several units. The number of the second pressure gauge (5) is the same as that of the pressure relief pipe (3) and they correspond one-to-one. The second pressure gauge (5) is provided at one end of the pressure relief pipe (3) near the heating pipe (1) and is used to detect the pressure at the connection between the pressure relief pipe (3) and the heating pipe (1). A control valve is installed on the pressure relief pipe (3).

2. The constant pressure device for heating pipelines according to claim 1, characterized in that: The pressure relief component is a pressure relief valve (6), which is connected to the end of the pressure relief pipe (3) away from the heating pipe (1). The outlet end of the pressure relief valve (6) is connected to a discharge pipe (7), which is connected to the collection box (13).

3. The constant pressure device for heating pipelines according to claim 1, characterized in that: The control valve is a solenoid valve (8), which is installed at the outlet of the second pressure gauge (5) and is communicatively connected to the second pressure gauge (5).

4. The constant pressure device for heating pipelines according to claim 1, characterized in that: Several pressure relief pipes (3) define a pressure relief zone on the heating pipe (1), and the first pressure gauge (2) is installed at the water inlet end of the pressure relief zone.

5. The constant pressure device for heating pipelines according to claim 4, characterized in that: The heating pipe (1) is also equipped with a first check valve (9), which is located at the outlet end of the pressure relief zone.

6. The constant pressure device for heating pipelines according to claim 2, characterized in that: A Y-type filter (10) is connected to the inlet end of the pressure relief pipe (3) at the pressure relief valve (6).

7. The constant pressure device for heating pipelines according to claim 1, characterized in that: A pump (12) is installed on the return water pipe (4), and a second check valve (11) is provided at the water inlet end of the pump (12).

8. The constant pressure device for heating pipelines according to claim 1, characterized in that: The collection box (13) is covered with a heat insulation layer.

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