A van heat exchanger unit water replenishing system

Abstract

The utility model relates to a van heat exchange unit water supply system, and the water supply system is located between primary pipe network and secondary pipe network, and the water supply system includes: control cabinet, two sets of circulating water pumps in parallel, first water supply pipeline, second water supply pipeline, filter, heat exchanger is arranged between primary pipe network and secondary pipe network, and the water supply system and heat exchanger are installed between primary pipe network and secondary pipe network through parallel connection, first water supply pipeline and second water supply pipeline are parallelly connected and located between primary pipe network and secondary pipe network, one of first water supply pipeline and second water supply pipeline is the water supply pipeline of backup, and two sets of circulating water pumps in parallel are installed on the water inlet pipeline of secondary pipe network, first and second electric regulating valves are arranged on first water supply pipeline and second water supply pipeline respectively, and first and second electric regulating valves are all connected on control cabinet, and the utility model discloses that the water supply system is composed of electric regulating valve, solenoid valve, pressure sensor and solenoid valve, and the protection effect is implemented to the system in the configuration and control aspect.

Description

Technical Field

[0001] This utility model relates to a water replenishment system, specifically a water replenishment system for a chamber heat exchanger unit that employs various sensors, electrically adjustable valves, and solenoid valves, and provides protection for the system in terms of configuration and control. Background Technology

[0002] In centralized heating systems, the pressure stability of the secondary pipeline directly affects heating quality and system safety. Current technologies for secondary pipeline water replenishment often face the following problems: When the pressure of the secondary pipeline fluctuates due to changes in heat load, pipeline leaks, or other factors, traditional water replenishment systems struggle to respond quickly to pressure changes, especially in scenarios with small-scale pressure fluctuations, easily leading to untimely or excessive water replenishment. Simultaneously, a single water replenishment pipeline design often results in low water replenishment efficiency when facing unstable pressure differences between the primary and secondary networks, and may even cause system water loss and hydraulic imbalance. Furthermore, the lack of flexibility in configuring the circulation pump flow rate in traditional systems, failing to dynamically adjust according to actual pressure changes, further exacerbates pipeline pressure fluctuations. Utility Model Content

[0003] To address the aforementioned problems, the main objective of this utility model is to provide a water replenishment system for a chamber heat exchanger unit that employs various sensors and solenoid valves, and provides protection for the system in terms of configuration and control.

[0004] This utility model solves the above-mentioned technical problems through the following technical solution: a water supply system for a chamber-type heat exchanger unit, the water supply system being located between the primary and secondary pipe networks, the water supply system for the chamber-type heat exchanger unit comprising: a control cabinet, two sets of circulating water pumps connected in parallel, a first water supply pipeline, a second water supply pipeline, and a filter.

[0005] A heat exchanger is installed between the primary and secondary pipe networks. The water supply system and the heat exchanger are installed in parallel between the primary and secondary pipe networks. The first and second water supply pipelines are connected in parallel and located between the primary and secondary pipe networks. One of the first and second water supply pipelines is a spare water supply pipeline. Two sets of circulating water pumps connected in parallel are installed on the inlet pipe of the secondary pipe network.

[0006] The first water supply pipeline and the second water supply pipeline are respectively equipped with a first electric regulating valve and a second electric regulating valve; both the first electric regulating valve and the second electric regulating valve are connected to the control cabinet.

[0007] The water supply system of the chamber heat exchanger unit also includes a flow meter. The first water supply pipeline and the second water supply pipeline are connected to form a water supply pipeline. The filter and the flow meter are installed on the water supply pipeline after the first water supply pipeline and the second water supply pipeline are connected.

[0008] In a specific embodiment of this utility model, a solenoid valve is provided at the outlet of the water supply pipeline where an electrically adjustable valve is provided, an outlet ball valve is provided at the outlet of the electrically adjustable valve, a solenoid valve is provided between the outlet of the electrically adjustable valve and the outlet ball valve, an electric regulating valve is provided on the water supply pipeline, and the electric regulating valve is connected to the control cabinet.

[0009] In a specific embodiment of this utility model, the first water supply pipeline is equipped with a solenoid valve, an outlet ball valve is provided at the outlet of the electric regulating valve, a solenoid valve is provided between the outlet of the electric regulating valve and the outlet ball valve, an electric regulating valve is provided on the water supply pipeline, and the electric regulating valve is connected to the control cabinet.

[0010] In a specific embodiment of this utility model, the circulation flow of one of the two sets of circulating water pumps accounts for 70% of the total flow, and the circulation flow of the other pump accounts for 50% of the total flow.

[0011] In a specific embodiment of this utility model, a temperature sensor and a pressure sensor are installed on the inlet pipeline of the secondary pipeline network, and both the temperature sensor and the pressure sensor are connected to the control cabinet.

[0012] In a specific embodiment of this utility model, the filter is connected to the control cabinet.

[0013] In a specific embodiment of this utility model, temperature sensors and pressure sensors are installed on the inlet and outlet pipes of the primary pipeline network, and both temperature sensors and pressure sensors are connected to the control cabinet.

[0014] The positive and progressive effects of this utility model are as follows: The water supply system for the chamber heat exchanger unit provided by this utility model has the following advantages:

[0015] 1. Precise pressure regulation: The pressure sensor monitors the secondary pipeline pressure in real time, and combined with the intelligent logic control of the control cabinet, it can quickly respond to small pressure fluctuations and avoid heating instability caused by pressure fluctuations.

[0016] 2. Dual-pipeline coordinated water replenishment: The first water replenishment pipeline serves as the primary pipeline, achieving continuous and adjustable water replenishment through an electric regulating valve; the second water replenishment pipeline serves as a backup pipeline, activating when pressure fluctuations are significant. The coordinated operation of the two pipelines enhances the reliability and adaptability of the water replenishment system.

[0017] 3. High-efficiency configuration of circulating pumps: Two circulating pumps are configured with a flow rate ratio of 70% and 50% respectively. They can be flexibly combined to operate according to pressure changes, which can not only meet the daily flow requirements, but also provide sufficient circulation power to maintain the hydraulic balance of the pipeline network when the pressure changes suddenly.

[0018] 4. Energy saving and consumption reduction: Intelligent control avoids excessive water replenishment and ineffective circulation, reduces water pump energy consumption, and reduces water waste, meeting the requirements of energy saving and emission reduction.

[0019] 5. Convenient Operation and Maintenance: The design of the shut-off ball valves before and after the water supply pipeline facilitates equipment maintenance, and the automated control cabinet reduces manual intervention, improving system stability and maintenance efficiency. The new heat exchanger unit water supply system, composed of electrically adjustable valves and solenoid valves, provides protection for the system in terms of configuration and control. It effectively prevents water loss caused by unstable pressure between the primary and secondary water networks, which could prevent the system from properly replenishing hot water from the primary network to the secondary network. This also reflects the principles of saving energy, reducing consumption, and minimizing water waste. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0021] The following are the names corresponding to the reference numerals in this utility model:

[0022] Figure 1 In the middle: Control cabinet 1, temperature sensor 2, first circulating water pump 3-1, first circulating water pump 3-2, heat exchanger 4, first water supply line 5, first electric regulating valve 6, first solenoid valve 7, second water supply line 8, second electric regulating valve 9, ball valve 10, flow meter 11, filter 12, ball valve 13, heating pipeline 14, pressure sensor 15, ball valve 16, solenoid valve inlet ball valve 17, solenoid valve outlet ball valve 18, check valve 19. Detailed Implementation

[0023] The preferred embodiments of this utility model are given below with reference to the accompanying drawings to illustrate the technical solution of this utility model in detail.

[0024] Figure 1 This is a schematic diagram of the overall structure of the present invention, as shown below. Figure 1 As shown: This utility model provides a water supply system for a chamber-type heat exchanger unit. The water supply system is located between the primary and secondary pipe networks. The water supply system for the chamber-type heat exchanger unit includes: a control cabinet 1, two sets of circulating water pumps connected in parallel (first circulating water pump 3-1 and first circulating water pump 3-2 in the figure), a first water supply pipeline 5, a second water supply pipeline 8, and a filter 12.

[0025] A heat exchanger 4 is installed between the primary and secondary pipe networks. The water supply system and the heat exchanger 4 are installed in parallel between the primary and secondary pipe networks. The first water supply line 5 and the second water supply line 8 are connected in parallel and located between the primary and secondary pipe networks. One of the first water supply line 5 and the second water supply line 8 is a spare water supply line. Two sets of circulating water pumps connected in parallel (the first circulating water pump 3-1 and the first circulating water pump 3-2 in the figure) are installed on the water inlet pipe of the secondary pipe network.

[0026] A first electrically adjustable valve 6 and a second electrically adjustable valve 9 are respectively installed on the first water supply line 5 and the second water supply line 8; both the first electrically adjustable valve 6 and the second electrically adjustable valve 9 are connected to the control cabinet 1.

[0027] The water supply system of the chamber heat exchanger unit also includes a flow meter 11. The first water supply line 5 and the second water supply line 8 are connected to form a water supply line. The filter 12 and the flow meter 11 are installed on the water supply line after the first water supply line 5 and the second water supply line 8 are connected.

[0028] In this utility model, the first water supply pipeline 5 is provided with a first solenoid valve 7 at the outlet of the first electrically adjustable valve 6, and an outlet ball valve 10 is provided at the outlet of the first electrically adjustable valve 6. The first solenoid valve 7 is provided between the outlet of the first electrically adjustable valve 6 and the outlet ball valve 10. The second water supply pipeline 8 is provided with a second electrically adjustable valve 9, and the second electrically adjustable valve 9 is connected to the control cabinet 1.

[0029] In this utility model, the circulation flow of one of the two circulating water pumps accounts for 70% of the total flow, and the circulation flow of the other pump accounts for 50% of the total flow.

[0030] The secondary pipeline of this utility model is equipped with a temperature sensor 2 and a pressure sensor 15, both of which are connected to the control cabinet 1.

[0031] The filter 12 of this utility model is connected to the control cabinet 1.

[0032] Temperature and pressure sensors are installed on the inlet and outlet pipes of the primary water network, and both temperature and pressure sensors are connected to control cabinet 1.

[0033] like Figure 1The novel heat exchanger unit water replenishment system shown includes a control cabinet 1. A pressure sensor 15, circulating water pumps 3-1 and 3-2 are connected to the control cabinet 1. The pressure sensor 15, circulating water pumps 3-1 and 3-2 are located on the inlet pipe of the heat exchanger 4. A water replenishment pump line 5 is provided on the inlet pipe of the heat exchanger 4. An electrically adjustable valve 6 is installed on the water replenishment line 5 and connected to the control cabinet 1. The pressure sensor 15 transmits the pressure signal collected at the inlet of the circulating water pump 3-1 to the control cabinet 1. The control cabinet 1 compares the pressure transmitted from the pressure sensor 15 with the set pressure at the inlet of the circulating water pump 3-1. The control cabinet 1 uses the signal to control the start / stop state of the electrically adjustable valve 9 on the water replenishment line 8, thereby determining whether water replenishment is performed on the inlet pipe of the heating system. The first water supply line 5 is equipped with a first electrically adjustable valve 6 and a first solenoid valve 7. An inlet ball valve 16 is located at the inlet of the first water supply line 5, and an outlet ball valve 10 is located at the outlet of the first water supply line 5. The second water supply line 8 is equipped with a second solenoid valve 9. An inlet ball valve 17 is located at the inlet of the second solenoid valve 9, and an outlet ball valve 18 is located at the outlet of the solenoid valve 9. A check valve 19 is located at the outlet of the outlet ball valve 18 to prevent water from flowing back into the network from the first water supply line 5 and the second water supply line 8. The second water supply line 8 is used for daily water supply, while the first water supply line 5, where the normally open first solenoid valve 7 and the first electrically adjustable valve 6 are located, is used as a backup water supply line. When the second water supply line 8 fails, the backup first water supply line 5 is activated. Once the pressure limit is reached, the first solenoid valve 7 closes.

[0034] This invention uses a pressure sensor to monitor the pressure of the secondary pipeline network in real time, and combines it with the intelligent logic control of the control cabinet to achieve a rapid response to small-range pressure fluctuations, thus avoiding the problem of unstable heating caused by pressure fluctuations.

[0035] In this invention, the second water supply line 8 is the main supply line, which achieves continuous and adjustable water supply through an electric regulating valve; the first water supply line 5 is the backup line, which is activated when the pressure fluctuates greatly. The two lines work together to improve the reliability and adaptability of the water supply system.

[0036] This utility model features two circulating pumps configured with a flow rate ratio of 70% and 50%, which can be flexibly combined and operated according to pressure changes. This not only meets the daily flow requirements but also provides sufficient circulation power to maintain the hydraulic balance of the pipeline network during sudden pressure changes.

[0037] This invention avoids excessive water replenishment and ineffective circulation through intelligent control, reduces water pump energy consumption, and reduces water waste, thus meeting the requirements of energy conservation and emission reduction.

[0038] The design of the front and rear shut-off ball valves in the water supply pipeline of this utility model facilitates equipment maintenance, and the automated control of the control cabinet reduces manual intervention, thereby improving the stability of system operation and maintenance efficiency.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection of this utility model as defined by the appended claims and their equivalents.

Claims

1. A water supply system for a chamber-type heat exchanger unit, characterized in that: The water replenishment system is located between the primary and secondary pipe networks. The water replenishment system of the chamber heat exchanger unit includes: a control cabinet, two sets of circulating water pumps connected in parallel, a first water replenishment pipeline, a second water replenishment pipeline, and a filter. A heat exchanger is installed between the primary and secondary pipe networks. The water supply system and the heat exchanger are installed in parallel between the primary and secondary pipe networks. The first and second water supply pipelines are connected in parallel and located between the primary and secondary pipe networks. One of the first and second water supply pipelines is a spare water supply pipeline. Two sets of circulating water pumps connected in parallel are installed on the inlet pipe of the secondary pipe network. A first electric regulating valve and a second electric regulating valve are respectively installed on the first water supply pipeline and the second water supply pipeline; both the first electric regulating valve and the second electric regulating valve are connected to the control cabinet. The water supply system of the chamber heat exchanger unit also includes a flow meter. The first water supply pipeline and the second water supply pipeline are connected to form a water supply pipeline. The filter and the flow meter are installed on the water supply pipeline after the first water supply pipeline and the second water supply pipeline are connected.

2. The water supply system for the chamber-type heat exchanger unit according to claim 1, characterized in that: The water supply pipeline is equipped with an electric regulating valve at its outlet, which is equipped with a solenoid valve. The outlet of the electric regulating valve is equipped with an outlet ball valve, and a solenoid valve is installed between the outlet of the electric regulating valve and the outlet ball valve. The water supply pipeline is equipped with an electric regulating valve, which is connected to the control cabinet.

3. The water supply system for the chamber-type heat exchanger unit according to claim 1, characterized in that: The first water supply pipeline is equipped with a solenoid valve, and an outlet ball valve is installed at the outlet of the electric regulating valve. A solenoid valve is installed between the outlet of the electric regulating valve and the outlet ball valve. An electric regulating valve is installed on the water supply pipeline and is connected to the control cabinet.

4. The water supply system for the chamber-type heat exchanger unit according to claim 1, characterized in that: One of the two circulating water pumps accounts for 70% of the total flow, while the other pump accounts for 50% of the total flow.

5. The water supply system for the chamber-type heat exchanger unit according to claim 1, characterized in that: Temperature and pressure sensors are installed on the inlet pipe of the secondary pipeline network, and both temperature and pressure sensors are connected to the control cabinet.

6. The water supply system for the chamber-type heat exchanger unit according to claim 1, characterized in that: The filter is connected to the control cabinet.

7. The water supply system for the chamber-type heat exchanger unit according to claim 1, characterized in that: Temperature and pressure sensors are installed on the inlet and outlet pipes of the primary water network, and both sensors are connected to the control cabinet.

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