GB/T 47619-2026Heat pump steam generation packages using the vapour compression cycle (English PDF)

4.1 Type

4.1.1 Heat pump steam generator units (hereinafter referred to as "units") are classified into the following types according to the type of heat source.

a) Air source type.

Based on the saturated steam temperature at the outlet of the unit under nominal operating conditions, it is classified as follows. H1 type. Nominal steam saturation temperature is 90°C; H2 type. Nominal steam saturation temperature is 120°C; H3 type. Nominal steam saturation temperature is 150°C.

b) Water source type.

---Natural Style Based on the saturated steam temperature at the outlet of the unit under nominal operating conditions, it is classified as follows. H1 type. Nominal steam saturation temperature is 90°C; H2 type. Nominal steam saturation temperature is 120°C; H3 type. Nominal steam saturation temperature is 150°C.

---Low-temperature waste heat type Based on the saturated steam temperature at the outlet of the unit under nominal operating conditions, it is classified as follows. H1 type. Nominal steam saturation temperature is 110°C; H2 type. Nominal steam saturation temperature is 150°C; H3 type. Nominal steam saturation temperature is 180°C.

---High-temperature waste heat type Based on the saturated steam temperature at the outlet of the unit under nominal operating conditions, it is classified as follows. H1 type. Nominal steam saturation temperature is 120°C; H2 type. Nominal steam saturation temperature is 150°C; H3 type. Nominal steam saturation temperature is 180°C; H4 type. Nominal steam saturation temperature is 200°C.

Note: Natural style uses naturally occurring water as a heat source.

4.1.2 According to the method of obtaining steam, it is divided into.

a) Evaporative heat pump steam generator unit;

b) Flash heat pump steam generator unit.

4.2 Basic Parameters

4.2.1 Normal working conditions

The unit should be able to operate normally under the conditions shown in Table 1.

4.2.2 Nominal Operating Conditions

4.2.2.1 The nominal operating conditions of the unit are shown in Table 2.

5.1 General Requirements

5.1.1 The unit shall conform to the requirements of this document and shall be in accordance with the drawings and technical documents approved according to the prescribed procedures or as agreed upon by the user and the manufacturer. manufacture.

5.1.2 The pressure vessels involved in the unit shall comply with the provisions of NB/T 47012.

5.1.3 The outer surface of the unit should be clean, the painted parts should be smooth, and the pipe fittings should be installed horizontally and vertically.

5.1.4 The parts and materials used in the unit shall comply with the provisions of GB/T 25861.

5.2 Performance Requirements

5.2.1 Air tightness, vacuum, and pressure tests

5.2.1.1 The airtightness requirements of the unit shall comply with the provisions of 5.2.1.1 in GB/T 18430.1-2024.

5.2.1.2 The vacuum requirements of the unit shall comply with the provisions of 5.2.1.2 in GB/T 18430.1-2024.

5.2.1.3 The pressure test requirements for the unit shall comply with the provisions of 5.2.2 in GB/T 18430.1-2024.

5.2.2 Trial Operation

The unit should be tested according to method 6.3.2. There should be no abnormalities during the trial operation, and the safety protection devices should not activate. The measured current, voltage, and input should be within acceptable limits. Parameters such as power should meet the design requirements.

5.2.3 Nominal Steam Production

Under the nominal operating conditions specified in Table 2, the measured value of the nominal steam production of the unit should not be less than 95% of the stated value.

5.2.4 Nominal Input Power

Under the nominal operating conditions specified in Table 2, the measured value of the nominal input power of the unit should not exceed 110% of the stated value.

5.2.5 Electricity consumption per unit of steam production

Under the nominal operating conditions specified in Table 2, the measured value of the unit's power consumption per unit steam output should not exceed the limit specified in Table 3.

5.2.6 Performance Coefficient

Under the nominal operating conditions specified in Table 2, the measured value of the unit's coefficient of performance should not be less than 95% of the stated value, and should not be lower than the value specified in Table 3. The limit.

5.2.7 Maximum Operating Test

During the maximum operating test, the unit's motors, electrical components, wiring connections, and other parts should function normally.

5.2.8 Minimum Operating Test

During the minimum operating test, the unit's protection devices should not trip, and the unit should not be damaged.

5.2.9 Noise

The measured noise level of the generator unit should not exceed the declared value by 2 dB(A).

5.3 Safety Requirements

5.3.1 Mechanical Safety

5.3.1.1 The safety requirements of the heat pump used in the unit shall comply with the provisions of GB/T 9237 and GB 25131.

5.3.1.2 The unit shall be equipped with safety valves in appropriate locations. The safety valves shall be able to operate safely under high pressure and high temperature steam conditions and shall meet the following requirements. Require.

a) The opening pressure is higher than the maximum steam pressure, but not higher than 1.1 times the maximum steam pressure;

b) The venting capacity is not less than the safe venting amount, and the vented steam can be recovered or vented to a safe location.

5.3.2 Electrical Safety

5.3.2.1 The insulation resistance, withstand voltage, grounding resistance, moisture resistance, and the selection, installation, and wiring of electrical components of the unit shall comply with... Requirements of GB 25131.

5.3.2.2 When the unit is in a flammable or explosive environment, the motor, electrical components and electrical equipment shall comply with the provisions of GB/T 3836.1.

5.3.2.3 The unit shall have an emergency stop button in a prominent and easily accessible location.

5.3.2.4 When the unit is equipped with a soundproof enclosure, heat dissipation inside the enclosure should be ensured and a high temperature alarm inside the enclosure should be set.

5.4 Other Requirements

5.4.1 Thermal Insulation

5.4.1.1 The thermal insulation material shall be non-toxic, odorless, and flame-retardant. Its heat resistance and flame resistance shall comply with GB/T 4706.32-2024, Section 30. The requirements of the chapter.

5.4.1.2 Containers and pipelines in contact with steam shall be insulated and heat-insulated in accordance with the provisions of GB/T 4272.

5.4.1.3 Heat exchangers, pipes, etc. that come into contact with the low-temperature refrigerant shall be insulated, and condensation shall not be allowed on the outer surface of the insulation layer.

5.4.1.4 The insulation structure shall consist of an insulation layer and a protective layer. The strength of the insulation structure shall be sufficient to withstand multiple start-ups and shutdowns and long-term operation of the unit. The insulation layer will not be damaged during the process.

5.4.1.5 The design of the insulation structure should not hinder the installation and maintenance of the unit, and a detachable structure is preferred.

5.4.1.6 Thermal insulation of heating pipelines shall comply with the provisions of GB 50041.

5.4.2 Corrosion Prevention

5.4.2.1 Components of the unit that come into contact with water and water vapor should be made of corrosion-resistant materials or have surface anti-corrosion treatment.

5.4.2.2 The salt spray resistance of the electroplated parts of the unit shall comply with the requirements of GB/T 25861 or GB/T 21362.

6.1 Test Conditions

6.1.1 The nominal operating conditions of the unit are shown in Table 2, and other test operating conditions are shown in Table 4.

6.1.2 All instruments and meters used in the test shall be verified or calibrated by a metrology department and shall be within their applicable validity period. The instruments and meters used in the test... The type and accuracy should conform to the requirements of Table 5.

6.1.3 The feedwater quality of the unit shall comply with the requirements of GB/T 1576, and the feedwater quality of the evaporator side of the water source unit shall comply with... The provisions of GB/T 29044.

6.2 Test Requirements

6.2.1 Installation and Operation Requirements

6.2.1.1 The unit shall be installed according to the manufacturer's specifications, except for the connections of the devices, instruments, and meters required for testing in the prescribed manner. No changes were made to the generator set.

6.2.1.2 The unit shall be operated under test conditions, and the unit's operating status, the sensitivity and reliability of safety devices, and the control components shall be checked. Is the action normal?

6.2.1.3 During the test, the unit only adjusts the operating parameters, and the unit's operating status is automatically adjusted by its control system.

6.2.1.4 The unit should be tested after running stably under nominal operating conditions for 30 minutes.

6.2.2 Test Parameters and Methods

6.2.2.1 The test parameters for the unit include, but are not limited to.

---Water supply temperature;

---Water supply pressure;

---Water source inlet temperature (water source type);

---Water source outlet temperature (water source type);

---Water source flow rate (water source type);

---Ambient air dry-bulb temperature (air source type);

---Ambient air wet-bulb temperature (air source type);

---Power consumption of the generator unit;

---Steam outlet temperature;

---Steam outlet pressure;

---Steam flow rate.

6.2.2.2 Data acquisition and processing shall comply with the provisions of GB/T 18430.1.

6.2.3 Tolerances for Test Conditions

The permissible tolerances for the readings of the test operating parameters shall comply with the provisions of Table 6.

6.3 Performance Test

6.3.1 Air tightness, vacuum, and pressure tests

6.3.1.1 Conduct the airtightness test of the unit in accordance with the provisions of GB/T 18430.1-2024.

6.3.1.2 Conduct a vacuum test on the unit in accordance with GB/T 18430.1-2024. Evacuate the unit to 80 Pa and maintain the pressure for at least 30 minutes.

6.3.1.3 Conduct pressure tests on the unit in accordance with the provisions of GB/T 18430.1-2024.

6.3.2 Operational Test

The device was operated continuously at room temperature. The current, voltage, and input power of the device were tested, and the sensitivity and reliability of the safety protection system were checked.

Reliability is tested to ensure that the operation of temperature, electrical, and other control components is normal.

6.3.3 Nominal Steam Production Test

Under the nominal operating conditions specified in Table 2, the steam production test of the unit shall be conducted according to the test method specified in Appendix B.

6.3.4 Nominal Input Power Test

During the nominal steam production test, the input power of the test unit is measured.

6.3.5 Power Consumption Test per Unit Steam Production

Electricity consumption per unit of steam production is calculated according to formula (1).

6.3.6 Performance coefficient test

The heating capacity and coefficient of performance of the computer unit are calculated according to formula (2) as specified in Appendix B.

6.3.7 Maximum Operating Test

The maximum operating test of the unit shall be conducted in accordance with the following provisions.

a) The test voltage is the unit's rated voltage (with an allowable fluctuation range of ±10% of the rated voltage), and the unit is operated under the maximum operating conditions specified in Table 4.

After the system stabilizes, the unit should operate normally without any malfunctions throughout the entire test process.

b) The unit should be able to operate continuously, and the motor overload protection device or other protection devices should not activate;

c) After the unit has been shut down for 10 minutes, it can be restarted and run continuously for 1 hour. Overload protection of the motor is permitted during the first 5 minutes of startup.

If the overload protector trips within the first 5 minutes of continuous operation after startup, it is not allowed to operate again.

If the unit is in the correct position and is reset within 30 minutes of shutdown, it should run continuously for 1 hour.

6.3.8 Minimum Operating Test

The unit is operated under rated voltage and the minimum operating conditions specified in Table 4. After reaching a stable state, it is run for another 2 hours to check all parts of the unit. The components, low-voltage, antifreeze, and overload protectors were inspected.

6.3.9 Noise Test

During performance testing under nominal operating conditions, the noise of the unit was simultaneously measured. For units with circulating water pumps, the circulating water pump should operate at near-zero noise levels.

Operate under the flow rate and head conditions indicated on the nameplate, and use the actual measured maximum value as the standard.

Noise measurement points are arranged on a rectangular hexahedral surface as specified in GB/T 9068, and the average sound pressure level is calculated according to GB/T 9068. The calculation method for the level is derived.

6.3.10 Electrical safety test

The insulation resistance, withstand voltage, grounding resistance and moisture resistance of the unit shall be in accordance with the provisions of GB 25131.

6.3.11 Salt spray test of electroplated parts

Salt spray testing of electroplated parts of the unit shall be conducted in accordance with the provisions of GB/T 25861 or GB/T 21362.

7.1 Factory Inspection

Each unit shall undergo factory inspection, and the inspection items, technical requirements and test methods shall be as specified in Table 7.

7.2 Sampling Inspection

7.2.1 The unit shall be sampled from the products that have passed the factory inspection. The inspection items, technical requirements and test methods shall be in accordance with the provisions of Table 7.

7.2.2 Sampling methods shall comply with the provisions of GB/T 2828.1. The sampling items, batch size, sampling plan, inspection level, and quality standards shall be determined for each lot of inspection.

The quality control level is determined by the manufacturer's quality inspection department.

7.3 Type Testing

7.3.1 Type testing shall be conducted every 3 years, and the testing items shall be as specified in Table 7.

7.3.2 The first product shall undergo type testing when the following conditions occur.

--- Significant improvements have been made to new product development or finalized products;

---A brand new production line was used;

---Production line relocation or major improvements to the production line.

8.1 Marking

8.1.1 Each unit shall have a durable nameplate fixed in a conspicuous location. The size and technical requirements of the nameplate shall comply with the provisions of GB/T 13306. The nameplate should indicate the following.

a) Manufacturer's name and trademarks;

b) Product name and model;

c) Main technical performance parameters (nominal steam production, nominal input power, voltage, frequency and number of phases, steam outlet temperature, steam outlet pressure) (e.g., force, water supply temperature, dimensions, mass)

d) Product serial number;

e) Manufacturing date;

f) The number of this document.

8.1.2 The unit should have signs indicating its operating status, such as direction of rotation, water flow direction, liquid level, oil level, safety signs, warning signs, etc.

If the unit uses flammable refrigerant, it should be labeled in accordance with the provisions of GB/T 4706.32-2024.

8.1.3 Each unit shall carry the following technical documents.

a) Product certificate, which includes.

---Product name and model;

---Product serial number;

---Test results;

---Inspector's signature or seal;

---Inspection date.

b) Product instruction manual, which includes.

---Product model and name, scope of application, applicable standards, main technical specifications, etc.;

---Product structural diagram, electrical schematic diagram, and wiring diagram;

---Installation instructions and requirements;

---Instructions for use, maintenance and upkeep (For units using flammable refrigerants, their maintenance and upkeep shall comply with GB/T 9237)

In addition to the requirements, it should also meet the requirements of Appendix DD in GB/T 4706.32-2024);

---Safety Precautions. c) Packing list.

8.2 Packaging

8.2.1 The unit should be cleaned before packaging. All components should be clean and dry, and easily rusted components should be coated with rust inhibitor.

8.2.2 The unit shall be equipped with dustproof measures (such as external heat shrink film, stretch film, etc.), and its packaging shall comply with the provisions of GB/T 13384 and be properly secured. Avoid moisture and mechanical damage during transportation.

8.2.3 The following markings should be present on the unit's packaging box.

a) Manufacturer's name;

b) Product name and model;

c) Net weight, gross weight;

d) External dimensions;

e) Packaging and storage markings such as "Upwards," "Keep from rain," "Do not roll," and "Stacking limit" should comply with GB/T 6388 and The relevant provisions of GB/T 191.

8.3 Transportation and Storage

8.3.1 The unit shall not be subjected to collisions, tilting, or rain and snow during transportation and storage.

8.3.2 The product should be stored in a dry and well-ventilated place.