Efficient energy-saving heat supply system based on non-valve balance

Abstract

An efficient energy-saving heat supply system based on non-valve balance is suitable for the field of heat supply and comprises a primary network, a heat exchanger, a park pipe network and an in-building unit vertical pipe which are sequentially connected. The park pipe network is of an underground direct burial type or an overhead type, and the unit vertical pipe in each building is connected with the park pipe network at the unit well; a circulating pump frequency fixing device used for measuring the pressure difference of supply water and return water is arranged in the unit well at the tail end of the most disadvantageous loop; a non-valve pipe type damping galvanostat is arranged on the water return pipe in each unit well; the top of the in-building unit vertical pipe is provided with an anti-leakage microporous filtering rotary exhaust valve; a control type multi-probe coupling precise room temperature acquisition terminal is arranged in a heat consumer room in the building; all signals in the system are collected through the central controller, and the execution mechanism is controlled to conduct heat supply adjustment on the system. By means of the technical scheme, efficient and energy-saving heat supply can be achieved.

Description

Technical Field

[0001] The invention is applicable to the field of heating, in particular to a high-efficiency and energy-saving heating system based on non-valve balancing. Background Art

[0002] There are many problems with the current park heating system. It is unable to meet the heating companies' demand for reducing energy consumption while ensuring the heating needs of users, especially to ensure balanced heating for the entire park and a good heating experience. The specific problems are as follows: 1. The horizontal balance target point is unclear: the characteristics of park heating are that the base number of unit well valve nodes is large and the base number of household valve nodes is even larger. Some existing heating systems set the balance target point as the household valve. In actual control, due to the large base number, it is difficult to achieve precise control, and the repair and maintenance rate is too high, and the hydraulic balance is very unsatisfactory; in addition, the characteristic of heat conduction upward, that is, under the condition of equal heating capacity, the room temperature in the lower floor is lower than that in the higher floor, that is to say, the "imbalance" of the existing riser just makes up for the characteristic defect of heat conduction upward, so the riser does not need to be balanced, and therefore the balance target point should be set as the unit well valve node.

[0003] 2. Horizontal balance is not ideal: 1) Some campuses use unit valves for dynamic balancing, but this fails to achieve the desired goal. This is because buildings are constructed from high-density materials (such as concrete and masonry), which typically have a high volumetric heat capacity and can store more heat, but also have a slower heat transfer rate (high thermal inertia, i.e., large hysteresis). This requires stable thermal regulation. For any unit, the supply water temperature needs to fluctuate smoothly based on the building's heat load demand. The return water temperature, influenced by the building's thermodynamic characteristics, fluctuates even more smoothly. Over short periods of time, it can be considered a constant value, so the flow rate also needs to be constant, or constant. The same is true for the entire campus. As long as all unit flows are controlled by constant flow according to demand and a prioritized balance is achieved, a smooth and balanced heat supply can be achieved. Therefore, dynamic adjustment is not the optimal option for balancing, whether for a single unit valve or for the entire campus.

[0004] 2) Some parks use unit valves for static regulation, which cannot achieve the ideal goal: For most parks, there are dozens or even hundreds of unit valves. When a large number of valves are regulated, there will be a "coupling" phenomenon. Any valve regulation will cause the system pressure to change, and the flow of other valves will also change accordingly. Therefore, valve flow regulation is a local intervention and cannot globally coordinate the flow requirements of all nodes.

[0005] Regardless of the type of valve, all of them adjust the flow directly by changing the cross-sectional area of the pipe. This is a typical "resistance-type" flow control method, and its flow rate is nonlinearly related to the opening. A small opening can easily lead to sudden changes in flow rate, and a large opening can reduce the adjustment sensitivity. In particular, it has a minimum adjustable flow limit, that is, the adjustment accuracy of the valve drops sharply when it is close to the closed state, making it difficult to achieve small flow adjustments, resulting in an imbalance in the working conditions. In the heating system, the flow requirements are different due to the influence of the distance between the unit well valve in the park and the heat exchange station, the orientation of the building, the size of the building area, the capping of the mountain, and the different heat consumption of the intermediate households. That is, the valve is required to have different openings, and different openings will have different precisions, so stable flow control cannot be achieved. Based on the above reasons, it is difficult for the valves in the heating system to meet the demand for constant flow control.

[0006] In summary, a method is needed that fully considers factors such as horizontal balance, vertical balance (eliminating imbalance caused by air resistance), stable and accurate measurement of room temperature, and the need for circulation to operate at a patrol frequency according to the pressure difference required by the most unfavorable loop, and ultimately can coordinate adjustments in all aspects to achieve efficient energy saving. Summary of the Invention

[0007] The present invention provides a high-efficiency and energy-saving heating system based on non-valve balance, which solves the problem that existing heating systems cannot achieve high efficiency and energy saving.

[0008] The invention is achieved through the following technical solutions: a high-efficiency and energy-saving heating system based on non-valve balancing, comprising a primary network, a heat exchanger, a park pipe network, and unit risers in a building connected in sequence; the park pipe network is directly buried underground or overhead, and each unit riser in a building is connected to the park pipe network at a unit well; the longest loop in the park pipe network is the most unfavorable loop, and a circulating pump constant frequency device for measuring the supply and return water pressure difference is provided in the unit well at the end of the most unfavorable loop; a non-valve tube damping constant current device is provided on the return pipe in each unit well; a leak-proof microporous filter rotary exhaust valve is provided on the top of the unit riser in the building; and a control-type multi-probe coupling precision room temperature acquisition terminal is provided in the heat user room in the building; The water supply pipe and return pipe of the park pipeline network in the heat exchange station are equipped with an electromagnetic flowmeter, water temperature sensor, water pressure sensor, and heat meter; the heat meter is connected to the electromagnetic flowmeter, water temperature sensor, and water pressure sensor; the return pipe of the park pipeline network is equipped with a circulation pump, a water tank, and a water supply pump.

[0009] The signal input end of the central controller is connected to the control multi-probe coupled precision room temperature acquisition terminal and the heat meter; the heat meter is connected to the electromagnetic flow meter, water temperature sensor, and water pressure sensor; the signal output end of the central controller is connected to the circulation pump and the electric control valve on the primary network.

[0010] The primary network is provided with an electric regulating valve, and the central controller controls the opening of the electric regulating valve according to the room temperature target value set by the controllable multi-probe coupled precision room temperature acquisition terminal.

[0011] In the end unit well of the most unfavorable loop, a circulating pump fixed frequency device for measuring the supply and return water pressure difference is provided on the water supply pipe and the return water pipe.

[0012] The non-valve tube damping constant current device includes an outer sleeve, both ends of which are connected to the water pipe through flanges or directly connected to the external pipe without flanges. The upper part of the outer sleeve is provided with an inspection port, and the lower part is provided with a sewage pipe; it includes an internal tube core; the tube core includes a fixed flow control tube, the water inlet end of the fixed flow control tube is a tapered tube, the water outlet end is threaded with the adjustable flow tube, the water outlet end of the adjustable flow tube is also a tapered tube, the fixed flow control tube and the adjustable flow tube are positioned between the fixed ring plate and the outer sleeve; the adjustable flow tube is covered with a nut, and the adjustable flow tube is fixed to the fixed ring plate by the nut.

[0013] The inspection port is composed of an inner thread short tube, an outer thread sealing cap and a sealing rubber ring; the lower part of the inner thread short tube is connected to the outer sleeve, and the upper part is connected to the outer thread sealing cap by thread, and is sealed by the sealing rubber ring.

[0014] The sewage pipe is composed of an outer thread short pipe connected to the outer sleeve and a sewage valve.

[0015] The control-type multi-probe coupled precise room temperature acquisition terminal is provided with a temperature probe for detecting the indoor temperature.

[0016] The leak-proof microporous filter rotary exhaust valve includes a lower valve body and an upper valve body; an exhaust riser is provided on the top of the upper valve body, one end of the exhaust riser is arranged inside the upper valve body, and the other end passes through the exposed part of the upper valve body, and the bottom of the exhaust riser is embedded with an exhaust seal; the bottom of the lower valve body is connected to the unit riser, and a precision filter is provided between the lower valve body and the unit riser; a float is provided in the lower valve body, and a spirally rising float slide is provided on the outside of the float, and a rotating slider cooperating with the float slide is provided on the inner wall of the lower valve body. The float can rise or fall along the direction of the rotating slider, and a sealing pin is provided on the top of the float. When the float is in the floating state, the sealing pin pushes up the exhaust seal, and the exhaust seal and the exhaust riser are sealed.

[0017] The precision filter of the leak-proof microporous filter rotary exhaust valve is installed in the exhaust valve interface through the filter retaining spring, and the lower part of the exhaust valve interface is connected to the top of the unit standpipe through the standpipe top valve.

[0018] The lower valve body and the upper valve body of the leak-proof microporous filtering rotary exhaust valve are sealed and installed by bolts and sealing rubber gaskets; the top end of the exhaust vertical pipe is connected to the exhaust horizontal pipe.

[0019] The beneficial effects of the present invention are: 1. Invented a valve-free tube damping constant current device to achieve valve-free horizontal balance of the park pipe network; 2. Invented a leak-proof precision filtering rotary exhaust valve to achieve vertical balance of the risers in the building and coordinated horizontal balance; 4. Establish a control system compatible with the above invention to achieve automatic heat output according to the set target indoor temperature, thereby achieving the purpose of collaborative heat saving; and realize automatic frequency patrol operation of the circulating pump according to the pressure difference value set for the most unfavorable loop, thereby achieving the purpose of collaborative power saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 : The present invention creates an overall system framework diagram; Figure 2 : Figure 1 Schematic diagram of the structure of the Zhong'an valve-tube damping constant current device; Figure 3 : Figure 1 Schematic diagram of the structure of the anti-leakage microporous filter rotary exhaust valve; Figure 4 : Flow chart of the method for controlling room temperature by an electric regulating valve in the present invention; Figure 5 : The method flow chart of carrying out pressure difference control by circulating pump in the present invention. DETAILED DESCRIPTION

[0021] The present invention is further described below with reference to the accompanying drawings and examples. When referring to the drawings, identical numbers in different figures represent identical or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all possible embodiments consistent with the present invention. Rather, they are merely examples of devices consistent with certain aspects of the present invention, as detailed in the appended claims.

[0022] like Figure 1 The high-efficiency and energy-saving heating system based on non-valve balancing is shown, comprising a primary network, a heat exchanger, a campus pipe network, and unit risers in a building connected in sequence; the campus pipe network is directly buried underground or overhead, and each unit riser in a building is connected to the campus pipe network at a unit well 103; the longest loop in the campus pipe network is the most unfavorable loop, and a circulating pump constant frequency controller for measuring the supply and return water pressure difference is provided in the end unit well of the most unfavorable loop; a non-valve tube damping constant current device Z1 is provided on the return pipe 102 in each unit well 103; a leak-proof microporous filter rotary exhaust valve Z3 is provided on the top of the unit riser 104 in the building; a control-type multi-probe coupled precision room temperature acquisition terminal Z2 is provided in the room of the heat user in the building; the control-type multi-probe coupled precision room temperature acquisition terminal Z2 is provided with a temperature probe for detecting the indoor temperature.

[0023] The water supply pipe 101 and return pipe 102 of the campus pipe network within the heat exchange station are both equipped with an electromagnetic flowmeter FM, a water temperature sensor T1, a water pressure sensor P1, and a heat meter HM. The heat meter HM is connected to the electromagnetic flowmeter FM, water temperature sensor T1, and water pressure sensor P1. The return pipe 102 of the campus pipe network is equipped with a circulation pump CP, a water tank, and a water supply pump. The primary network is equipped with an electric regulating valve EV.

[0024] The central controller AC signal input terminal is connected to the control multi-probe coupled precision room temperature acquisition terminal Z2 and the heat meter HM; the heat meter HM is connected to the electromagnetic flow meter FM, the water temperature sensor T1, and the water pressure sensor P1; the central controller AC signal output terminal is connected to the circulation pump CP and the electric control valve EV on the primary network. Figure 4-5 The method shown is used for regulation.

[0025] The central controller AC controls the opening of the electric regulating valve (EV) based on the target room temperature set by the control multi-probe coupled precision room temperature acquisition terminal Z2, outputting heat energy according to the heat energy demand curve value of the heat energy meter. The heat energy meter design curve value is simulated and designed based on parameters such as the room temperature acquisition terminal temperature, the building heat load model, and the weather forecast. This control method saves heat. Simultaneously, the central controller AC controls the frequency of the circulation pumps on the campus pipe network. The circulation pump frequency must meet the pressure differential requirement. The pressure differential requirement is the design value of the pressure differential sensor in the terminal well of the most unfavorable loop. The pressure differential sensor design value is derived from the hydraulic calculation of the most unfavorable loop. This control method saves electricity. Furthermore, the central controller AC is responsible for controlling the campus pipe network's water supply pump to ensure that the system pressure reaches the design value. The design value is derived from the height difference between the water supply pump and the highest point of the riser in the building.

[0026] In the unit well 103 of the most unfavorable loop, a circulation pump frequency controller P2 for measuring the supply and return water pressure difference is provided on the water supply pipe 101 and the return pipe 102, which is used to determine the maximum pressure difference required by the park pipe network, that is, the maximum frequency required by the circulation pump.

[0027] like Figure 2The non-valve-tube damping constant current device Z1 shown in the figure includes an outer sleeve Z1-101. The two ends of the outer sleeve Z1-101 are connected to the water pipe through flanges Z1-201 or directly connected to the external pipe without flanges Z1-201. The outer sleeve Z1-101 is provided with an inspection port Z1-301 at the top and a sewage pipe Z1-401 at the bottom. A pipe core is provided inside; the pipe core includes a fixed flow control pipe Z1-501, and the water inlet end of the fixed flow control pipe Z1-501 is a tapered pipe Z1-50 4. The water outlet is threadedly connected to the adjustable flow tube Z1-502. The adjustable flow tube Z1-502 has a tapered tube Z1-504 at its outlet. The fixed flow control tube Z1-501 and the adjustable flow tube Z1-502 are positioned between the fixed ring plate Z1-505 and the outer sleeve Z1-101. The adjustable flow tube Z1-502 is covered with a nut Z1-503, which secures the adjustable flow tube Z1-502 to the fixed ring plate Z1-505. The inspection port Z1-301 consists of an internal threaded short tube Z1-302, an external threaded sealing cap Z1-303, and a sealing rubber ring Z1-304. The lower portion of the internal threaded short tube Z1-302 is connected to the outer sleeve Z1-101, and the upper portion is threadedly connected to the external threaded sealing cap Z1-303, and sealed by the sealing rubber ring Z1-304. The sewage pipe Z1-401 is composed of an outer short pipe Z1-402 connected to the outer sleeve Z1-101 and a sewage valve Z1-403. Inside the outer sleeve Z1-101, a conical rectifier filter Z1-601 is installed at the front end of the water inlet cone pipe Z1-504.

[0028] At the top of the water supply and return pipes of the unit riser 104, there are Figure 3 The anti-leakage microporous filter rotary exhaust valve Z3 shown is responsible for solving the air resistance problem and achieving vertical hydraulic balance.

[0029] like Figure 3 As shown, the leakage-proof microporous filter rotary exhaust valve Z3 includes a lower valve body Z3-101 and an upper valve body Z3-102, and the lower valve body Z3-101 and the upper valve body Z3-102 are sealed and installed by bolts Z3-201 and sealing gaskets Z3-202.

[0030] An exhaust riser pipe Z3-103 is installed at the top of the upper valve body Z3-102. One end of the exhaust riser pipe Z3-103 is located inside the upper valve body Z3-102, while the other end extends through the exposed portion of the upper valve body Z3-102. The bottom of the exhaust riser pipe Z3-103 is embedded in the exhaust seal Z3-105, and the top of the exhaust riser pipe Z3-103 is connected to the exhaust cross pipe Z3-401. The bottom of the lower valve body Z3-101 is connected to the unit riser pipe 104. A precision filter Z3-401 is installed between the lower valve body Z3-101 and the unit riser pipe 104. The precision filter Z3-401, through the filter retaining spring Z3-402, is installed within the unit riser pipe Z3-104. The precision filter Z3-401, through the filter retaining spring Z3-402, is installed within the exhaust valve interface 107. The lower portion of the exhaust valve interface 107 is connected to the top of the unit riser pipe Z3-501 through the valve Z3-502 at the top of the riser pipe.

[0031] A float Z3-301 is provided in the lower valve body Z3-101, and a spirally rising float slide Z3-302 is provided on the outside of the float Z3-301. The inner wall of the lower valve body Z3-101 is provided with a rotating slider Z3-106 that cooperates with the float slide Z3-302. The float Z3-301 can rise or fall along the direction of the rotating slider Z3-106, and a sealing ejector pin Z3-303 is provided on the top of the float Z3-301.

[0032] In practice, when gas is present at the top of the unit riser 104, float Z3-301 does not rise. Instead, the gas is discharged through the gap between the exhaust seal Z3-105 and the exhaust riser Z3-103, achieving exhaust. After the gas is exhausted, the water in the unit riser 104 rises, causing float Z3-301 to spiral upward along the direction of the rotating slider Z3-106. The sealing pin Z3-303 then pushes up against the exhaust seal Z3-105, sealing the gap between the exhaust seal Z3-105 and the exhaust riser Z3-103.

[0033] When in use, the control-type multi-probe coupled precision room temperature acquisition terminal Z2 is installed in multiple representative houses at far, medium and near locations within the park, and is responsible for transmitting information to the central controller.

[0034] Description of the design, manufacture, installation and operation of nuclear equipment 1. Design and manufacturing of core equipment: Non-valve tube damping constant current device: It is necessary to optimize the design based on the pipeline network diagram, layered and household table, and building characteristics (thermal indicators, orientation, insulation, etc. of different buildings).

[0035] For renovation projects of old residential communities, on-site surveys are also required to determine the required interface size, interface form (welding, hot melt, flange, threaded connection), material, etc. of the constant current device before designing and manufacturing.

[0036] Anti-leakage microporous filter rotary exhaust valve: produced in a standardized factory.

[0037] 2. Core equipment installation Non-valve tube damping constant flow device: Installed on the return pipe in the inlet valve well of all units (or unit riser, household pipe), and installed according to the direction instructions.

[0038] Leak-proof microporous filter rotary exhaust valve is installed at the exhaust point at the top of all building risers.

[0039] The multi-probe coupled high-precision room temperature acquisition terminal is installed in multiple representative user rooms at far, medium and near locations, and is hung / pasted on the wall at a height of no less than 2 meters to prevent human interference.

[0040] The circulating pump frequency converter is installed in the end well of the most unfavorable loop. After installation and debugging, determine the required frequency of the circulating pump, record the frequency value and lock the frequency of the inverter. Then the circulating pump frequency converter is removed and put back for standby.

[0041] The central controller is installed in the control room and is debugged and tested together with the indoor temperature collection terminal, circulation pump, electric control valve, and water supply pump to ensure that the system is smooth and easy to use.

[0042] 3. System debugging Start the central controller and check its communication status with the temperature acquisition terminal, circulation pump, electric control valve, and water supply pump to ensure that the connection is normal and the standby state is normal.

[0043] The central controller parameter input includes the system water pressure constant pressure value, the most unfavorable loop constant pressure difference value, and the heating capacity parameters (retrieved from the database).

[0044] Start the manual mode of the central controller, pressurize the system, check the water level in the water tank, ensure that the water tank is full of water, and check that the tap water pressure is normal. Then replenish water through the water replenishment pump to make the system pressure reach the set value. It is qualified only when it is stable and there is no leakage.

[0045] Start the manual mode of the central controller: conduct a short-term (not less than 2 hours) trial run on the circulation pump to ensure that it operates normally; debug the high and low openings of the electric control valve for no less than 3 cycles to ensure normal operation.

[0046] 4. System operation Start the central controller in automatic mode and begin operation. Check whether the circulating pump's operating pressure difference is consistent with the set value, whether the water temperature sensor parameters are normal, whether the electric control valve is open and closed normally, and whether the heat meter parameters are normal. If any of the above problems exist, immediately repair them until the system is normal. Example

[0047] XX Community (1) Situation before renovation 1. Construction and renovation process Constructed in 1993, the original unit inlet was designed with an ordinary regulating valve, resulting in uneven heat supply and excessive energy consumption.

[0048] In 2013, an energy-saving renovation was carried out and a self-operated flow valve was installed, which saved about 10% of the energy before the renovation. However, due to the low flow control accuracy of this valve, the balance pipe was easily blocked, some underground valves were severely corroded and could not adjust the flow, and the performance of the balance performance components declined year by year, the energy-saving effect continued to decline and it has even affected the normal heating supply of the entire park.

[0049] In 2024, in order to resolve the contradiction between high efficiency (balanced heating) and energy saving, another renovation was carried out.

[0050] 2. Park Overview Building situation: This community has 21 residential buildings, 1 hotel, 1 kindergarten, 1 supermarket, and 1 community comprehensive building (1 health center, 1 kindergarten, 1 community building, and 1 garage).

[0051] Building Insulation: The exterior walls were re-insulated in 2023, equivalent to a three-star energy efficiency rating.

[0052] Heating facilities: The original building had wall-mounted radiators, but some have now been converted to floor heating, which is a typical hybrid heating method.

[0053] Door and window situation: originally they were single-glazed windows, but now some have been changed to double-glazed windows. This is a typical mixed-glass window community.

[0054] Number of balancing control points: 120 sets (residential buildings have no inlet valves, which are installed on risers; the others are unit ground wells).

[0055] Building area: 90239m 2 .

[0056] Payment area: 69762.92m 2 The contribution rate is 77.6%.

[0057] Circulation pump parameters: flow rate 400m 3 / h, lift 32m, power 55KW.

[0058] The most unfavorable loop length: 434m (2) High-efficiency energy-saving transformation 1. Balance control point transformation The self-operated flow valves installed in the original riser / ground well were removed and replaced with tubular damping constant flow devices, totaling 120 sets, all of which were installed without omission.

[0059] 2. Exhaust valve modification The exhaust valves in all buildings were removed and leak-proof precision-filtered rotary exhaust valves were installed without any omissions.

[0060] 3. Renovation of room temperature collection terminal The original room temperature acquisition terminal was dismantled and a control-type multi-probe coupled precision room temperature acquisition terminal was installed. Three typical households were selected for installation in the far (Building 8#), middle (Building 18#) and near (Building 10#).

[0061] 4. Control strategy adjustment Adjust the heating temperature control mode from manual control to automatic control according to the set room temperature target value.

[0062] The original circulation pump frequency was adjusted from the estimated value (40HZ) to the pressure difference value required for the most unfavorable loop (31HZ).

[0063] (3) Energy saving 1. Heat saving situation The heat saving rate is 29.2%, see the table below: Table 1: Comparison of heat saving between 23-24 and 24-25

[0064] 2. Power saving This year, the circulation pump will be patrolled based on the pressure difference of 1m required at the end of the most unfavorable loop. The circulation pump frequency will be adjusted from 40HZ in the previous year to 31HZ.

[0065] The electricity saving rate per square meter is 45.5%, and the energy saving rate per square meter is 22.8%, see the table below: Table 2: Comparison of circulating pump power saving in 2023-2024 and 2024-2025

[0066] (IV) Conclusion The indoor temperature of the entire park operates smoothly with weather changes, the heating supply is balanced at both the near and far ends of the entire park, the effective complaint rate has dropped significantly, the residents' satisfaction has increased significantly, and the energy-saving effect is outstanding. The circulation flow rate per square meter has dropped by 22.8%, the heat consumption has dropped by 29.2%, and the power consumption of the circulation pump has dropped by 45.5%.

Claims

1. A high-efficiency and energy-saving heating system based on non-valve balancing, characterized by: The invention comprises a primary network, a heat exchanger, a park pipe network, and a unit riser in a building, which are connected in sequence; the park pipe network is an underground direct buried type or an overhead type, and each unit riser in a building is connected to the park pipe network at a unit well (103); the longest loop in the park pipe network is the most unfavorable loop, and a circulating pump constant frequency device for measuring the supply and return water pressure difference is provided in the unit well (103) at the end of the most unfavorable loop; a non-valve tube damping constant current device (Z1) is provided on the return pipe (102) in each unit well (103); a leak-proof microporous filter rotary exhaust valve (Z3) is provided on the top of the unit riser (104) in the building; and a control-type multi-probe coupling precision room temperature acquisition terminal (Z2) is provided in the heat user room in the building; The water supply pipe (101) and the return pipe (102) of the park pipe network in the heat exchange station are both provided with an electromagnetic flowmeter (FM), a water temperature sensor (T1), a water pressure sensor (P1), and a heat meter (HM); the heat meter (HM) is connected to the electromagnetic flowmeter (FM), the water temperature sensor (T1), and the water pressure sensor (P1); the return pipe (102) of the park pipe network is provided with a circulation pump (CP), a water tank, and a water supply pump; The signal input end of the central controller (AC) is connected to the control multi-probe coupled precision room temperature acquisition terminal (Z2) and the heat meter (HM); the heat meter (HM) is connected to the electromagnetic flowmeter (FM), the water temperature sensor (T1), and the water pressure sensor (P1); the signal output end of the central controller (AC) is connected to the circulation pump (CP) and the electric control valve (EV) on the primary network.

2. The high-efficiency energy-saving heating system based on non-valve balancing according to claim 1 is characterized in that: An electric regulating valve (EV) is provided on the primary network, and the opening of the electric regulating valve (EV) is controlled by a central controller (AC) according to a room temperature target value set by a controllable multi-probe coupled precision room temperature acquisition terminal (Z2).

3. The high-efficiency energy-saving heating system based on non-valve balancing according to claim 1 is characterized in that: In the terminal unit well (103) of the most unfavorable loop, a circulating pump frequency controller (P2) for measuring the pressure difference between supply and return water is provided on the water supply pipe (101) and the water return pipe (102).

4. The high-efficiency energy-saving heating system based on non-valve balancing according to claim 1 is characterized in that: The non-valve tube damping constant current device (Z1) includes an outer sleeve (Z1-101), both ends of the outer sleeve (Z1-101) are connected to the water pipe, the upper part of the outer sleeve (Z1-101) is provided with an inspection port (Z1-301), and the lower part is provided with a sewage pipe (Z1-401); the inner tube core includes a fixed flow control tube (Z1-501), the water inlet end of the fixed flow control tube (Z1-501) is a cone tube (Z1-504), and the water outlet end is connected to the adjustable flow tube (Z1-502 ) threaded connection, the outlet end of the adjustable flow tube (Z1-502) is a conical tube (Z1-504), the fixed flow control tube (Z1-501) and the adjustable flow tube (Z1-502) are positioned between the fixed ring plate (Z1-505) and the outer sleeve (Z1-101); the adjustable flow tube (Z1-502) is outer-sheathed with a nut (Z1-503), and the adjustable flow tube (Z1-502) is fixed to the fixed ring plate (Z1-505) by the nut (Z1-503).

5. The high-efficiency energy-saving heating system based on non-valve balancing according to claim 4 is characterized in that: The inspection port (Z1-301) is composed of an inner thread short tube (Z1-302), an outer thread sealing cap (Z1-303), and a sealing rubber ring (Z1-304); the lower part of the inner thread short tube (Z1-302) is connected to the outer sleeve (Z1-101), and the upper part is connected to the outer thread sealing cap (Z1-303) by thread, and is sealed by the sealing rubber ring (Z1-304).

6. The high-efficiency energy-saving heating system based on non-valve balancing according to claim 4 is characterized in that: The sewage pipe (Z1-401) is composed of a short outer thread pipe (Z1-402) connected to the outer sleeve (Z1-101) and a sewage valve (Z1-403).

7. The high-efficiency energy-saving heating system based on non-valve balancing according to claim 1 is characterized in that: The control-type multi-probe coupled precise room temperature acquisition terminal (Z2) is provided with a temperature probe for detecting the indoor temperature.

8. The high-efficiency energy-saving heating system based on non-valve balancing according to claim 1 is characterized in that: The leak-proof microporous filter rotary exhaust valve (Z3) comprises a lower valve body (Z3-101) and an upper valve body (Z3-102); an exhaust vertical pipe (Z3-103) is provided on the top of the upper valve body (Z3-102); one end of the exhaust vertical pipe (Z3-103) is arranged inside the upper valve body (Z3-102), and the other end passes through the exposed part of the upper valve body (Z3-102); the bottom of the exhaust vertical pipe (Z3-103) is embedded in the exhaust seal (Z3-105); the bottom of the lower valve body (Z3-101) is connected to the unit vertical pipe (104), and a precision filter (Z3-401) is provided between the lower valve body (Z3-101) and the unit vertical pipe (104); the lower valve body (Z3-101) A float (Z3-301) is provided inside the float (Z3-301), and a spirally ascending float slide (Z3-302) is provided outside the float (Z3-301). A rotating slider (Z3-106) cooperating with the float slide (Z3-302) is provided on the inner wall of the lower valve body (Z3-101). The float (Z3-301) can rise or fall along the direction of the rotating slider (Z3-106). A sealing ejector pin (Z3-303) is provided on the top of the float (Z3-301). When the float (Z3-301) is in an upward floating state, the sealing ejector pin (Z3-303) pushes up the exhaust seal (Z3-105), thereby sealing the exhaust seal (Z3-105) and the exhaust riser (Z3-103).

9. The high-efficiency energy-saving heating system based on non-valve balancing according to claim 1 is characterized in that: The precision filter (Z3-401) of the leak-proof microporous filtration rotary exhaust valve is connected to the filter retaining ring (Z3-402) in the exhaust valve interface (107). The lower part of the exhaust valve interface (107) is connected to the top of the unit standpipe (Z3-501) through the standpipe top valve (Z3-502).

10. The high-efficiency energy-saving heating system based on non-valve balancing according to claim 1, characterized in that: The lower valve body (Z3-101) and the upper valve body (Z3-102) of the leak-proof microporous filter rotary exhaust valve are sealed and installed by bolts (Z3-201) and sealing gaskets (Z3-202); the top end of the exhaust vertical pipe (Z3-103) is connected to the exhaust cross pipe (Z3-401).

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